CN110701328A - Tripod type high-temperature gate valve - Google Patents

Tripod type high-temperature gate valve Download PDF

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Publication number
CN110701328A
CN110701328A CN201911098051.1A CN201911098051A CN110701328A CN 110701328 A CN110701328 A CN 110701328A CN 201911098051 A CN201911098051 A CN 201911098051A CN 110701328 A CN110701328 A CN 110701328A
Authority
CN
China
Prior art keywords
plate
gate valve
valve body
valve
type high
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911098051.1A
Other languages
Chinese (zh)
Inventor
张海伟
王鹏程
王珂
李丽锋
姜平
赵保国
刘立宇
荣澔洁
郭曾旭
单霄飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanxi Hepo Power Generation Co Ltd
Original Assignee
Shanxi Hepo Power Generation Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanxi Hepo Power Generation Co Ltd filed Critical Shanxi Hepo Power Generation Co Ltd
Priority to CN201911098051.1A priority Critical patent/CN110701328A/en
Publication of CN110701328A publication Critical patent/CN110701328A/en
Priority to PCT/CN2020/123759 priority patent/WO2021093561A1/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/0227—Packings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0008—Mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K49/00—Means in or on valves for heating or cooling
    • F16K49/005—Circulation means for a separate heat transfer fluid
    • F16K49/007—Circulation means for a separate heat transfer fluid located within the obturating element

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Details Of Valves (AREA)
  • Sliding Valves (AREA)

Abstract

The invention discloses a tripod type high-temperature gate valve, which comprises a valve body, an upper cover plate, a lower cover plate, an ear plate, a support frame, a top plate, an inserting plate, a sealing packing box, a valve rod and a hand wheel, wherein the upper cover plate and the lower cover plate are fixed on two sides of the valve body and are used for connecting external pipelines; wherein, the outer side of the valve body is provided with a cooling water ring, the cooling water ring is provided with a water inlet and a water outlet, a cooling channel is arranged in the inserting plate, and the cooling water ring is communicated with the cooling channel through a hose line; and a sealing packing is filled in the sealing packing box. According to the invention, through the arranged cooling water ring and the cooling channel, the gate valve can be cooled through circulating cooling water, so that the gate valve is prevented from being in a high-temperature working environment for a long time, and the service life of the gate valve is prolonged.

Description

Tripod type high-temperature gate valve
Technical Field
The invention relates to the technical field of gate valves, in particular to a tripod type high-temperature gate valve.
Background
The gate valve is a control device which is arranged on a process pipeline and used for controlling the flow of substances in the process pipeline, and is widely applied to various industries such as chemical industry, energy, pharmacy and the like. High-temperature materials exist in the conveying medium of the pipeline and need to be conveyed and stored. Due to the high temperature of the materials, the gate valve used for the conveying pipeline is difficult to endure the high temperature of the materials. The gate valve is often deformed and denatured (physical characteristics are changed) in a high-temperature environment, so that abnormal conditions such as blockage, untight closing and immovable closing of the gate valve are caused, and the service life of the gate valve is shortened.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the tripod type high-temperature gate valve has the advantages that the gate valve can realize a cooling effect in a high-temperature working environment, the sealing effect of the gate valve is improved, and the service life of the gate valve is prolonged.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a tripod type high-temperature gate valve comprises a valve body, an upper cover plate, a lower cover plate, an ear plate, a support frame, a top plate, an insertion plate, a sealing packing box, a valve rod and a hand wheel, wherein the upper cover plate and the lower cover plate are fixed on two sides of the valve body and used for being connected with an external pipeline; the cooling water ring is arranged on the outer side of the valve body and provided with a water inlet and a water outlet, the inserting plate is internally provided with a cooling channel, and the cooling water ring is communicated with the cooling channel through a hose line; and a sealing packing is filled in the sealing packing box.
Further, a tripod type high temperature gate valve according to claim 1, wherein: and the upper cover plate and the lower cover plate are also provided with cooling pipelines communicated with the cooling water ring.
Furthermore, the upper end and the lower end of the support frame are respectively provided with an upper limiting rod and a lower limiting rod which are used for indicating the full opening and the full closing of the gate valve.
Furthermore, a reinforcing rib plate used for reinforcing the connection strength of the lug plate is arranged between the lug plate and the valve body.
Furthermore, the sealing packing box is also provided with an adjusting ring sheet for adjusting the extrusion sealing degree of the sealing packing and the inserting plate and an adjusting bolt for adjusting the adjusting ring sheet; the adjusting ring piece is provided with a gap.
Furthermore, a round-head screw for supporting the inserting plate is further arranged on the valve body.
Further, the round head bolts are provided with at least three.
Furthermore, a throttling boss is arranged in the cooling water ring.
Further, the upper cover plate and the lower cover plate are of tubular structures or flange-type structures.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the cooling water ring and the cooling channel arranged in the gate plate, when the gate valve works, the gate valve is connected with an external water pipeline through the water inlet and the water outlet, cooling water with lower temperature is conveyed through the water pipeline, the cooling water enters the cooling channel of the cooling water ring and the cooling channel of the insert plate from the water inlet to cool the valve body and the insert plate, and then flows out of the water outlet, so that continuous cooling water cooling is formed, the temperature of the valve body and the insert plate is reduced, the phenomenon that the gate valve deforms or loses the sealing function due to the fact that the gate valve bears overhigh temperature is avoided, and the service life of the gate valve is prolonged.
(2) The upper limiting rod and the lower limiting rod can effectively avoid the excessive damage to the valve body when the flashboard is fully closed and the excessive damage to the support frame when the flashboard is fully opened when the flashboard is operated by the hand wheel, and further prolong the service life of the gate valve.
(3) According to the adjusting ring piece and the adjusting bolt arranged on the sealing packing, in the actual use process, the adjusting bolt extrudes the adjusting ring piece, so that the size of the gap of the adjusting ring piece is changed, the extrusion degree between the sealing packing and the gate valve is adjusted, the sealing performance of the gate plate is adjusted, and the practicability of the gate valve is improved.
(4) The throttling boss can effectively prevent most of cooling water from directly flowing out from the water inlet to the water outlet, increase the flow rate of the cooling water passing through the inserting plate and further improve the cooling effect.
(5) The round-head bolt provided by the invention can realize the stressed support of the inserting plate, and simultaneously, the friction force of the inserting plate entering and exiting the valve body is converted into point friction through surface friction, so that the friction force of the inserting plate entering and exiting the valve body is greatly reduced, and the sealing property of the gate valve is further improved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic cross-sectional view of the present invention.
FIG. 3 is a schematic view of a cooling water ring according to the present invention.
Fig. 4 is a schematic structural diagram of the valve body of the present invention.
Wherein, the names corresponding to the reference numbers are:
1-a valve body, 2-an upper cover plate, 3-a lower cover plate, 4-an ear plate, 5-a support frame, 6-a top plate, 7-an insertion plate, 8-a sealing packing box, 9-a valve rod, 10-a hand wheel, 11-a cooling water ring, 12-a water inlet, 13-a water outlet, 14-a cooling channel, 15-a hose line, 16-a sealing packing, 17-an upper limiting rod, 18-a lower limiting rod, 19-a reinforcing rib plate and 20-a throttling boss.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
As shown in FIGS. 1-4:
a tripod type high-temperature gate valve is provided with a circulating cooling water device, the gate valve is cooled by cooling water, the gate valve is prevented from being in a high-temperature working environment for a long time, and the service life of the gate valve is greatly prolonged; its concrete structure includes valve body 1, is fixed in 1 both sides of valve body are used for connecting the upper cover plate 2 and the lower apron 3 of external pipeline, upper cover plate 2 and lower apron 3 are pipy structure or the structure of flange formula, and when upper cover plate and lower apron are pipy structure, this gate valve is connected with external pipeline through welded connected mode, and when upper cover plate and lower apron were the structure of flange formula, can realize being connected between gate valve and the external pipeline through the mode of bolt and sealed pad connection.
The gate valve is characterized in that an ear plate 4 is arranged on the valve body 1, support frames 5 are arranged on two sides of the ear plate 4, a top plate 6 is arranged at the top end of each support frame 5, an insertion plate 7 is arranged in the middle of each support frame 5, the insertion plate 7 is inserted into the valve body 1 and used for realizing the opening and closing of the gate valve, in order to realize the sealing between the valve body 1 and the insertion plate 7, a sealing packing box 8 is arranged on each ear plate 4, a sealing packing 16 is filled in each sealing packing box 8, and the insertion plate 7 is tightly attached to the sealing packing 16 to realize; in order to realize the extrusion sealing degree between the sealing packing 16 and the inserting plate 7, a non-full-ring adjusting ring piece is arranged in the sealing packing box 16, the adjusting ring piece is provided with a notch, the size of the notch can be changed along with the action of extrusion force when the adjusting ring piece is extruded, the sealing packing box 16 is also provided with an adjusting bolt, the adjusting ring piece is adjusted through the adjusting bolt to realize different extrusion degrees of the sealing packing, and therefore the sealing tightness between the sealing packing and the inserting plate is effectively adjusted.
The plug board 7 is fixedly connected with a valve rod 9, the valve rod 9 moves up and down to drive the plug board 7 to move in the valve body 1, the gate valve is opened and closed, the valve rod 9 penetrates through the top board 6, a hand wheel 10 matched with the valve rod 9 is arranged on the top board 6 in a matched mode, the valve rod is driven to move up and down through rotation of the hand wheel 10, the hand wheel 10 is connected with the valve rod 9 in a threaded connection mode, the hand wheel 10 is connected and fixed on the top board through a bearing, the hand wheel 10 rotates to drive the valve rod to move up and down, a driving device can be arranged on the hand wheel, the hand wheel is driven in an electric control mode, and.
In order to reduce the friction force between the inserting plate and the valve body, a round-head screw rod used for supporting the inserting plate is further arranged on the valve body 1, penetrates through the valve body in a threaded connection mode and is connected with the inserting plate to support the pressure borne by the inserting plate, so that the surface contact between the inserting plate and the valve body is converted into point contact between the round head of the round-head bolt and the inserting plate, the surface friction when the inserting plate enters and exits the valve body is converted into point friction, the friction force between the inserting plate and the valve body is greatly reduced, and the convenience for opening and closing the gate valve is improved; in order to increase the supporting strength of the round-head bolts to the plugboard, a plurality of round-head bolts can be arranged to support the plugboard, and preferably three or more round-head bolts are arranged; meanwhile, the round head bolt is connected with the valve body in a threaded connection mode, so that the support between the round head bolt and the inserting plate can be adjusted according to the screwing amount of the round head bolt.
In order to realize the cooling of the valve body, a cooling water ring 11 is arranged on the outer side of the valve body 1, the cooling water ring 11 is provided with a water inlet 12 and a water outlet 13, and the cooling water ring 11 and the valve body 1 are hermetically connected into a whole in a welding mode to form a channel for water flow to pass through; in order to realize the cooling of the inserting plate 7, a cooling channel 14 is arranged in the inserting plate 7, a water flow channel formed by the cooling water ring 11 and the valve body 1 is communicated with the cooling channel 14 through a hose line 14, cooling water enters the cooling channels of the cooling water ring and the inserting plate from a water inlet to cool the valve body and the inserting plate and flows out of a water outlet to form continuous cooling water for cooling, so that the temperature of the valve body and the inserting plate is reduced, the phenomenon that the gate valve is deformed or loses the sealing function due to the fact that the gate valve bears overhigh temperature is avoided, and the service life of the gate valve is prolonged; meanwhile, in order to further improve the cooling effect of the gate valve, cooling pipelines can be arranged on the upper cover plate 2 and the lower cover plate 3, and are communicated with the cooling water ring 11, so that the circulating cooling function is realized.
Because the relative position relation between the inserting plate and the valve body cannot be judged in the rotating process of the hand wheel, the inserting plate and the valve body are easy to be stressed excessively to cause damage of the valve body, and an upper limiting rod 17 and a lower limiting rod 18 for indicating full opening and full closing of the gate valve are respectively arranged at the upper end and the lower end of the supporting frame 5; when the inserting plate is lifted to the position of the upper limiting rod 17 through the rotation of the hand wheel 10, the inserting plate is in a fully-opened state, the continuous rotation of the hand wheel can be stopped, and when the inserting plate is lowered to the position of the lower limiting rod 18, the inserting plate is in a fully-closed state, the continuous rotation of the hand wheel should be stopped, and the excessive force damage of the inserting plate to the valve body is avoided.
In order to improve the supporting strength of the lug seat 4, a reinforcing rib plate 19 for reinforcing the connecting strength of the lug plate 4 is also arranged between the lug plate 4 and the valve body 1; in order to prevent that the cooling water that gets into from the water inlet directly flows through the delivery port, and can not reach effectual cooling effect, set up throttle boss 20 in cooling water ring 11, separation most rivers directly lead to the delivery port from the shortest distance, and increase rivers pass through the picture peg and are cooling channel's water yield, promote its refrigerated effect.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.

Claims (9)

1. A tripod type high-temperature gate valve is characterized in that: the gate valve comprises a valve body (1), an upper cover plate (2) and a lower cover plate (3) which are fixed on two sides of the valve body (1) and used for connecting an external pipeline, an ear plate (4) fixed on the valve body (1), a support frame (5) arranged on the ear plate (4), a top plate (6) fixed on the top end of the support frame (5), an inserting plate (7) inserted into the valve body (1) and matched with the valve body (1) for opening and closing the gate valve, a sealing packing box (8) arranged on the ear plate (4) and used for sealing the inserting plate (7), a valve rod (9) penetrating through the top plate (6) and connected with the inserting plate (7) and used for controlling the inserting plate (7) to lift, and a hand wheel (10) arranged on the valve rod (9) and used for controlling the valve rod (9); the cooling water ring (11) is arranged on the outer side of the valve body (1), the cooling water ring (11) is provided with a water inlet (12) and a water outlet (13), a cooling channel (14) is arranged in the inserting plate (7), and the cooling water ring (11) is communicated with the cooling channel (14) through a hose line (15); and a sealing packing (16) is filled in the sealing packing box (8).
2. The tripod type high-temperature gate valve of claim 1, wherein: and cooling pipelines communicated with the cooling water ring (11) are also arranged on the upper cover plate (2) and the lower cover plate (3).
3. The tripod type high-temperature gate valve of claim 1, wherein: the upper end and the lower end of the support frame (5) are respectively provided with an upper limiting rod (17) and a lower limiting rod (18) which are used for indicating the full opening and the full closing of the gate valve.
4. The tripod type high-temperature gate valve of claim 3, wherein: and a reinforcing rib plate (19) used for reinforcing the connection strength of the lug plate (4) is also arranged between the lug plate (4) and the valve body (1).
5. The tripod type high-temperature gate valve of claim 1, wherein: the sealing packing box (8) is also provided with an adjusting ring sheet for adjusting the extrusion sealing degree of the sealing packing and the inserting plate (7) and an adjusting bolt for adjusting the adjusting ring sheet; the adjusting ring piece is provided with a gap.
6. The tripod type high-temperature gate valve of claim 5, wherein: and the valve body (1) is also provided with a round-head screw rod for supporting the inserting plate (7).
7. The tripod type high-temperature gate valve according to claim 6, wherein: the round-head bolts are arranged at least three.
8. The tripod type high-temperature gate valve of claim 1, wherein: and a throttling boss (20) is arranged in the cooling water ring (11).
9. The tripod type high-temperature gate valve of claim 2, wherein: the upper cover plate and the lower cover plate are of tubular structures or flange-type structures.
CN201911098051.1A 2019-11-12 2019-11-12 Tripod type high-temperature gate valve Pending CN110701328A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201911098051.1A CN110701328A (en) 2019-11-12 2019-11-12 Tripod type high-temperature gate valve
PCT/CN2020/123759 WO2021093561A1 (en) 2019-11-12 2020-10-26 Tripod type high-temperature gate valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911098051.1A CN110701328A (en) 2019-11-12 2019-11-12 Tripod type high-temperature gate valve

Publications (1)

Publication Number Publication Date
CN110701328A true CN110701328A (en) 2020-01-17

Family

ID=69205748

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911098051.1A Pending CN110701328A (en) 2019-11-12 2019-11-12 Tripod type high-temperature gate valve

Country Status (2)

Country Link
CN (1) CN110701328A (en)
WO (1) WO2021093561A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021093561A1 (en) * 2019-11-12 2021-05-20 山西河坡发电有限责任公司 Tripod type high-temperature gate valve

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3266517A (en) * 1964-02-12 1966-08-16 Kinney Eng Inc S P Gate valve for use in hot blast lines
CN201589006U (en) * 2009-12-24 2010-09-22 川北真空科技(北京)有限公司 Water-cooled vacuum gate valve
ITTO20110976A1 (en) * 2011-10-27 2013-04-28 Metaltecnica Srl VALVE, PARTICULARLY FOR TANKS CARRIED BY VEHICLES
CN202769033U (en) * 2012-05-21 2013-03-06 江苏迪萨机械有限公司 Ultrahigh temperature-resistant gate valve
JP2015059616A (en) * 2013-09-19 2015-03-30 株式会社栗本鐵工所 Gate valve for high-temperature fluid
CN203686192U (en) * 2014-01-21 2014-07-02 无锡三达环保科技有限公司 High-temperature water-cooling switching valve
CN107339451A (en) * 2017-08-08 2017-11-10 浙江臻强精密机械有限公司 A kind of cooled push-pull valve with the steady walking structure that weighs
CN108426083A (en) * 2018-04-08 2018-08-21 江苏万华液压机电有限公司 A kind of pneumatic water cooling regulating valve of high temperature
CN208804322U (en) * 2018-08-21 2019-04-30 启东腾达阀门有限公司 A kind of high-temperature water cold type blank-plate valve and magnetism servo-electric motor water-cooling
CN110701328A (en) * 2019-11-12 2020-01-17 山西河坡发电有限责任公司 Tripod type high-temperature gate valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021093561A1 (en) * 2019-11-12 2021-05-20 山西河坡发电有限责任公司 Tripod type high-temperature gate valve

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