Development status of valve industry at home and abroad and new products of Zui
2021-06-22 12:04:37
First, the domestic and international valve market characteristics from the perspective of the entire valve market, there are two main:
1. In the domestic market, the domestic market is divided into new construction and expansion project market, and old equipment maintenance and renovation project market.
From the perspective of these two markets, the supply of ordinary valve products is seriously oversupplied. Secondly, enterprises are in the midst of pressure, disorderly competition, counterfeiting and shoddy... The market is very irregular, leading to fierce competition among certain valve manufacturers. In the middle of the year, there was a large loss. Judging from the demand of these two markets, with the development and improvement of the market economy, especially the Progressive World Trade Organization (WTO), its market changes are getting bigger and bigger, and enterprises are increasingly affected by the market, and users are facing the market. The demand for products is getting higher and higher, and the demand for product development and production cycle is getting shorter and shorter.
2. Foreign markets. Foreign markets have been very active in recent years and the competition is fierce. Imports and exports of valves in East Asia and Southeast Asia have grown rapidly. Market trade between developed countries such as the European Community has continued to develop. Exports from Germany, Italy, Japan, China and other countries and regions have expanded, and countries such as the United States, Britain, and France have imported high-speed. Growth has formed a support point for the prosperity of the international valve market. Moreover, due to the further internationalization of the world economy, multinational corporations will continue to promote the development of the international valve market, and the regionalization of international trade has become another major feature.
Second, the domestic market China's valve production of more than 2,300, the valve products can be provided in several major categories, more than 3,500 varieties, more than 40,000 specifications.
(1) Valves for urban construction: Urban construction systems generally use low-pressure valves, and are currently developing in the direction of environmental protection and energy conservation. Environmentally friendly rubber plate valves, balancing valves, and mid-line butterfly valves and metal-sealed butterfly valves are gradually replacing low-pressure iron gate valves. Domestic urban construction requires valves such as balance valves, soft seal gate valves, and butterfly valves.
(2) Valves for urban heating: In the urban heat generation system, a large number of metal sealing butterfly valves, horizontal balancing valves and direct-buried ball valves are needed. Because of this type of valve, the longitudinal and lateral hydraulic imbalance of the pipeline can be solved to achieve energy saving and heat balance. the goal of.
(3) Valves for environmental protection: In the domestic environmental protection system, the water supply system mainly needs the middle line butterfly valve, the soft seal gate valve, the ball valve, and the exhaust valve (used to remove the air in the pipeline). Sewage treatment systems mainly require soft sealing gate valves and butterfly valves.
(4) Valves for city gas: City gas accounts for 22% of the entire natural market, and the amount of valves is large, and there are many types. Ball valves, plug valves, pressure reducing valves, and safety valves are mainly required.
(5) Valves for long-distance pipelines: Long-distance pipelines are mainly crude oil, finished products and natural pipelines. The valves that require a large amount of such pipelines are forged steel three-piece full-bore ball valves, sulfur-resistant slab gate valves, safety valves, and check valves.
(6) Valves for petrochemical plants:
a. Refining equipment, most of the valves used in refining equipment are pipeline valves, mainly gate valves, globe valves, check valves, safety valves, ball valves, butterfly valves, steam traps, among which the gate valve accounts for about 80% of the total number of valves. (Valves account for 3% to 5% of the total investment of the plant).
b. Chemical fiber equipment, chemical fiber products mainly include polyester, acrylic and vinylon. Ball valve and jacketed valve (jacketed ball valve, jacketed gate valve, jacketed shut-off valve) for the valve to be used.
c, acrylonitrile device. The device generally needs to use the API standard production valve, mainly for gate valve, globe valve, check valve, ball valve, steam trap, needle valve, plug valve, wherein the gate valve accounts for about 75% of the total valve.
d, ammonia plant. Due to the different synthetic ammonia and purification methods, the process flow is different, and the technical performance of the required valves is also different. At present, domestic ammonia plants mainly need gate valves, globe valves, check valves, traps, butterfly valves, ball valves, diaphragm valves, regulating valves, needle valves, safety valves, and high temperature cryogenic valves. Among them, the stop valve accounted for 53.4% ​​of the total valve data of the device, the gate valve accounted for 25.1%, the trap accounted for 7.7%, the safety valve accounted for 2.4%, the regulating valve and the cryogenic valve and other 11.4%.
e. Ethylene plant, ethylene plant is the leading device of petrochemical industry, which requires a wide variety of valves. Gate valves, globe valves, check valves, and lift-rod ball valves account for the majority, with gate valves needing to take the lead. In the "10th Five-Year Plan", there are still 6 sets of ethylene plants with an annual output of 660,000 tons, and the demand for valves is considerable. In addition, large-scale ethylene and high-pressure polyethylene devices require ultra-high temperature, lower temperature and ultra-high pressure valve series.
f, air separation device. "Air separation" means air separation. The device mainly requires a shut-off valve, a safety valve, a check valve, a regulating valve, a ball valve, a butterfly valve, and a cryogenic valve.
g, polypropylene device, polypropylene is easy to use propylene as raw material, polymerized polymer compound, the device mainly needs gate valve, globe valve, check valve, needle valve, ball valve, trap.
(7) Valves for power stations: The construction of power stations in China is developing in the direction of large-scale development. Therefore, large-diameter and high-pressure safety valves, pressure reducing valves, globe valves, gate valves, butterfly valves, emergency shut-off valves, flow control valves, and spherical seals are required. Instrument shut-off valve, (According to the national “Tenth Five-Year Planâ€, except for the provinces of Inner Mongolia and Guizhou, which can build more than 200,000 kilowatts, other provinces and cities can only build units of more than 300,000 kilowatts).
(8) Valves for metallurgy: The behavior of alumina in the metallurgical industry mainly requires the use of wear-resistant slurry valves (in the flow-type shut-off valve) and the adjustment of the trap. The steelmaking industry mainly needs metal sealed ball valves, butterfly valves and oxidized ball valves, cut-off flash and four-way reversing valves.
(9) Marine flat valve: With the development of offshore oilfield exploitation, the amount of valves required for marine flat hair is gradually increasing. Offshore valves, check valves, and multi-way valves are required for offshore platforms.
(10) Valves for food and medicine: The industry mainly needs stainless steel ball valves, non-toxic all-plastic ball valves and butterfly valves.
3. Foreign markets. With the entry of WTO, China's valve market is facing competition from foreign valve manufacturers. The amount of valves imported from abroad will have a large increase. At the same time, China's middle and low-end valve products will have more room for production.
(1) Developed countries will purchase valves from China to enter the developing countries: the valves that developed countries need to purchase from China are mainly API gate valves, globe valves, check valves, ball valves, butterfly valves, etc.
(2) Middle East, Iraq and other countries, oil fields, pipelines are destroyed from China's imports of petroleum systems and pipeline valves: the Middle East, Iraq and other countries need to import valves from China's petroleum systems mainly for gate valves, globe valves, check valves, long The pipelines are mainly flat valves and ball valves.
(3) Conventional import and export companies need to purchase general-purpose valves: such general-purpose valves are mostly from gate valves, globe valves, check valves, ball valves, and butterfly valves.
At present, the competition in the domestic and international valve market is very fierce, especially in the domestic market. The competition between state-owned enterprises and township enterprises and private individual enterprises, coupled with the relative weakening of their purchasing power, has caused some valve companies to face the crisis of survival. At the same time, foreign markets Some opportunities have also led domestic companies to work hard to survive. By virtue of the US's chances of sanctions against the Iraqi and Iranian countries in the Middle East and the export situation, China's high-quality, cheaper valve products are easy to enter the Middle East market and export to developed countries. Therefore, all valve companies should seize the opportunity to expand the market and increase exports in order to meet the needs of the domestic and international valve market.
Third, the development of valve products for domestic new valve products should be developed around the focus of national economic construction. The focus of China's "10th Five-Year" economic construction is energy, agriculture, environmental protection industry and urban construction. That is to say, the future market of valve products is mainly in the industries of electricity, petrochemical, fertilizer, environmental protection and urban construction. In these industries, valve products that are to be developed or are being trial-produced but still need to improve quality are mainly:
1. High temperature, high pressure, forged pilot valve, forged steel high pressure large diameter stop valve 3, forged steel high pressure large diameter check valve 4, metal seal, oil seal AVDCO valve 5, all welded full diameter pipeline ball valve 6, Lifting rod type ball valve 7, large diameter emergency cut butterfly valve 8, all welded direct buried ball valve 9, high performance butterfly valve (ANS1B16.1046 grade, Shouheda more than 500,000 times 10, pilot type safety valve 11, API6A slab gate valve 12, API6ACHOKT2S valve 13, control flash (regulating valve)
14. Adjusting the trap 15, the open-type soft-sealed plug valve for the product oil, the deep-sea oil field (under the sea of ​​3000m) gate valve, the ball valve 17, the high-pressure large-diameter top-loading ball valve 18, the alumina high-pressure melting slurry valve 19 In addition, natural gas regulating devices, valve testing devices have yet to be further improved.
At present, although the manufacturers in China's valve industry are gradually increasing their research and development efforts, the backwardness of product technology makes competition ineffective, and the variety of valves produced can only meet about 70% of market demand. The shortage of low-pressure large-diameter valves and high- and medium-pressure valves with contradictions in production and demand, as well as the new products to be developed, require our valve companies to develop, develop and expand. The competition in the market will always be the survival of the fittest. Accelerate the adjustment of product structure, the renewal of technology, the development of new products, the creation of various brands... It is the foundation for the survival, development and occupation of domestic and foreign markets.
1. In the domestic market, the domestic market is divided into new construction and expansion project market, and old equipment maintenance and renovation project market.
From the perspective of these two markets, the supply of ordinary valve products is seriously oversupplied. Secondly, enterprises are in the midst of pressure, disorderly competition, counterfeiting and shoddy... The market is very irregular, leading to fierce competition among certain valve manufacturers. In the middle of the year, there was a large loss. Judging from the demand of these two markets, with the development and improvement of the market economy, especially the Progressive World Trade Organization (WTO), its market changes are getting bigger and bigger, and enterprises are increasingly affected by the market, and users are facing the market. The demand for products is getting higher and higher, and the demand for product development and production cycle is getting shorter and shorter.
2. Foreign markets. Foreign markets have been very active in recent years and the competition is fierce. Imports and exports of valves in East Asia and Southeast Asia have grown rapidly. Market trade between developed countries such as the European Community has continued to develop. Exports from Germany, Italy, Japan, China and other countries and regions have expanded, and countries such as the United States, Britain, and France have imported high-speed. Growth has formed a support point for the prosperity of the international valve market. Moreover, due to the further internationalization of the world economy, multinational corporations will continue to promote the development of the international valve market, and the regionalization of international trade has become another major feature.
Second, the domestic market China's valve production of more than 2,300, the valve products can be provided in several major categories, more than 3,500 varieties, more than 40,000 specifications.
(1) Valves for urban construction: Urban construction systems generally use low-pressure valves, and are currently developing in the direction of environmental protection and energy conservation. Environmentally friendly rubber plate valves, balancing valves, and mid-line butterfly valves and metal-sealed butterfly valves are gradually replacing low-pressure iron gate valves. Domestic urban construction requires valves such as balance valves, soft seal gate valves, and butterfly valves.
(2) Valves for urban heating: In the urban heat generation system, a large number of metal sealing butterfly valves, horizontal balancing valves and direct-buried ball valves are needed. Because of this type of valve, the longitudinal and lateral hydraulic imbalance of the pipeline can be solved to achieve energy saving and heat balance. the goal of.
(3) Valves for environmental protection: In the domestic environmental protection system, the water supply system mainly needs the middle line butterfly valve, the soft seal gate valve, the ball valve, and the exhaust valve (used to remove the air in the pipeline). Sewage treatment systems mainly require soft sealing gate valves and butterfly valves.
(4) Valves for city gas: City gas accounts for 22% of the entire natural market, and the amount of valves is large, and there are many types. Ball valves, plug valves, pressure reducing valves, and safety valves are mainly required.
(5) Valves for long-distance pipelines: Long-distance pipelines are mainly crude oil, finished products and natural pipelines. The valves that require a large amount of such pipelines are forged steel three-piece full-bore ball valves, sulfur-resistant slab gate valves, safety valves, and check valves.
(6) Valves for petrochemical plants:
a. Refining equipment, most of the valves used in refining equipment are pipeline valves, mainly gate valves, globe valves, check valves, safety valves, ball valves, butterfly valves, steam traps, among which the gate valve accounts for about 80% of the total number of valves. (Valves account for 3% to 5% of the total investment of the plant).
b. Chemical fiber equipment, chemical fiber products mainly include polyester, acrylic and vinylon. Ball valve and jacketed valve (jacketed ball valve, jacketed gate valve, jacketed shut-off valve) for the valve to be used.
c, acrylonitrile device. The device generally needs to use the API standard production valve, mainly for gate valve, globe valve, check valve, ball valve, steam trap, needle valve, plug valve, wherein the gate valve accounts for about 75% of the total valve.
d, ammonia plant. Due to the different synthetic ammonia and purification methods, the process flow is different, and the technical performance of the required valves is also different. At present, domestic ammonia plants mainly need gate valves, globe valves, check valves, traps, butterfly valves, ball valves, diaphragm valves, regulating valves, needle valves, safety valves, and high temperature cryogenic valves. Among them, the stop valve accounted for 53.4% ​​of the total valve data of the device, the gate valve accounted for 25.1%, the trap accounted for 7.7%, the safety valve accounted for 2.4%, the regulating valve and the cryogenic valve and other 11.4%.
e. Ethylene plant, ethylene plant is the leading device of petrochemical industry, which requires a wide variety of valves. Gate valves, globe valves, check valves, and lift-rod ball valves account for the majority, with gate valves needing to take the lead. In the "10th Five-Year Plan", there are still 6 sets of ethylene plants with an annual output of 660,000 tons, and the demand for valves is considerable. In addition, large-scale ethylene and high-pressure polyethylene devices require ultra-high temperature, lower temperature and ultra-high pressure valve series.
f, air separation device. "Air separation" means air separation. The device mainly requires a shut-off valve, a safety valve, a check valve, a regulating valve, a ball valve, a butterfly valve, and a cryogenic valve.
g, polypropylene device, polypropylene is easy to use propylene as raw material, polymerized polymer compound, the device mainly needs gate valve, globe valve, check valve, needle valve, ball valve, trap.
(7) Valves for power stations: The construction of power stations in China is developing in the direction of large-scale development. Therefore, large-diameter and high-pressure safety valves, pressure reducing valves, globe valves, gate valves, butterfly valves, emergency shut-off valves, flow control valves, and spherical seals are required. Instrument shut-off valve, (According to the national “Tenth Five-Year Planâ€, except for the provinces of Inner Mongolia and Guizhou, which can build more than 200,000 kilowatts, other provinces and cities can only build units of more than 300,000 kilowatts).
(8) Valves for metallurgy: The behavior of alumina in the metallurgical industry mainly requires the use of wear-resistant slurry valves (in the flow-type shut-off valve) and the adjustment of the trap. The steelmaking industry mainly needs metal sealed ball valves, butterfly valves and oxidized ball valves, cut-off flash and four-way reversing valves.
(9) Marine flat valve: With the development of offshore oilfield exploitation, the amount of valves required for marine flat hair is gradually increasing. Offshore valves, check valves, and multi-way valves are required for offshore platforms.
(10) Valves for food and medicine: The industry mainly needs stainless steel ball valves, non-toxic all-plastic ball valves and butterfly valves.
3. Foreign markets. With the entry of WTO, China's valve market is facing competition from foreign valve manufacturers. The amount of valves imported from abroad will have a large increase. At the same time, China's middle and low-end valve products will have more room for production.
(1) Developed countries will purchase valves from China to enter the developing countries: the valves that developed countries need to purchase from China are mainly API gate valves, globe valves, check valves, ball valves, butterfly valves, etc.
(2) Middle East, Iraq and other countries, oil fields, pipelines are destroyed from China's imports of petroleum systems and pipeline valves: the Middle East, Iraq and other countries need to import valves from China's petroleum systems mainly for gate valves, globe valves, check valves, long The pipelines are mainly flat valves and ball valves.
(3) Conventional import and export companies need to purchase general-purpose valves: such general-purpose valves are mostly from gate valves, globe valves, check valves, ball valves, and butterfly valves.
At present, the competition in the domestic and international valve market is very fierce, especially in the domestic market. The competition between state-owned enterprises and township enterprises and private individual enterprises, coupled with the relative weakening of their purchasing power, has caused some valve companies to face the crisis of survival. At the same time, foreign markets Some opportunities have also led domestic companies to work hard to survive. By virtue of the US's chances of sanctions against the Iraqi and Iranian countries in the Middle East and the export situation, China's high-quality, cheaper valve products are easy to enter the Middle East market and export to developed countries. Therefore, all valve companies should seize the opportunity to expand the market and increase exports in order to meet the needs of the domestic and international valve market.
Third, the development of valve products for domestic new valve products should be developed around the focus of national economic construction. The focus of China's "10th Five-Year" economic construction is energy, agriculture, environmental protection industry and urban construction. That is to say, the future market of valve products is mainly in the industries of electricity, petrochemical, fertilizer, environmental protection and urban construction. In these industries, valve products that are to be developed or are being trial-produced but still need to improve quality are mainly:
1. High temperature, high pressure, forged pilot valve, forged steel high pressure large diameter stop valve 3, forged steel high pressure large diameter check valve 4, metal seal, oil seal AVDCO valve 5, all welded full diameter pipeline ball valve 6, Lifting rod type ball valve 7, large diameter emergency cut butterfly valve 8, all welded direct buried ball valve 9, high performance butterfly valve (ANS1B16.1046 grade, Shouheda more than 500,000 times 10, pilot type safety valve 11, API6A slab gate valve 12, API6ACHOKT2S valve 13, control flash (regulating valve)
14. Adjusting the trap 15, the open-type soft-sealed plug valve for the product oil, the deep-sea oil field (under the sea of ​​3000m) gate valve, the ball valve 17, the high-pressure large-diameter top-loading ball valve 18, the alumina high-pressure melting slurry valve 19 In addition, natural gas regulating devices, valve testing devices have yet to be further improved.
At present, although the manufacturers in China's valve industry are gradually increasing their research and development efforts, the backwardness of product technology makes competition ineffective, and the variety of valves produced can only meet about 70% of market demand. The shortage of low-pressure large-diameter valves and high- and medium-pressure valves with contradictions in production and demand, as well as the new products to be developed, require our valve companies to develop, develop and expand. The competition in the market will always be the survival of the fittest. Accelerate the adjustment of product structure, the renewal of technology, the development of new products, the creation of various brands... It is the foundation for the survival, development and occupation of domestic and foreign markets.
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