CN114673812A - Condensing pressure regulating valve - Google Patents

Condensing pressure regulating valve Download PDF

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Publication number
CN114673812A
CN114673812A CN202210237580.0A CN202210237580A CN114673812A CN 114673812 A CN114673812 A CN 114673812A CN 202210237580 A CN202210237580 A CN 202210237580A CN 114673812 A CN114673812 A CN 114673812A
Authority
CN
China
Prior art keywords
valve
bottom end
sleeve
pressure regulating
adjusting screw
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
CN202210237580.0A
Other languages
Chinese (zh)
Inventor
姚尚怀
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.)
Shanghai Jileng Refrigeration Equipment Co ltd
Original Assignee
Shanghai Jileng Refrigeration Equipment 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 Shanghai Jileng Refrigeration Equipment Co ltd filed Critical Shanghai Jileng Refrigeration Equipment Co ltd
Priority to CN202210237580.0A priority Critical patent/CN114673812A/en
Publication of CN114673812A publication Critical patent/CN114673812A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/02Check valves with guided rigid valve members
    • F16K15/06Check valves with guided rigid valve members with guided stems
    • F16K15/063Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/18Check valves with actuating mechanism; Combined check valves and actuated valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00Construction of housing; Use of materials therefor
    • F16K27/02Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209Check valves or pivoted valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00Construction of housing; Use of materials therefor
    • F16K27/08Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1221Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/60Handles

Abstract

The invention discloses a condensation pressure regulating valve, and particularly relates to the technical field of a refrigerating system regulating valve, which comprises a valve body, wherein a valve port, a liquid inlet cavity and a liquid outlet cavity are arranged in the valve body, the valve port is arranged between the liquid inlet cavity and the liquid outlet cavity, a valve port cushion is arranged at the valve port, a valve cover is arranged at the top end of the valve body, an adjusting screw rod is arranged at the middle end of the valve cover in a threaded manner, a fixed plate is arranged at the bottom end of the adjusting screw rod, a sleeve is arranged at the bottom end of the fixed plate, a telescopic spring is arranged at the top end in the sleeve, a piston is arranged at the bottom end of the telescopic spring, a valve rod is arranged at the bottom end of the piston, the bottom end of the valve rod penetrates through the sleeve and extends to the lower part of the sleeve, a valve core is arranged at the valve port, and the valve core is arranged at the valve port. The invention has the advantages of high response speed and good refrigeration effect; and the disassembly and the maintenance are convenient, and the sealing performance is good.

Description

Condensing pressure regulating valve
Technical Field
The invention relates to the technical field of a regulating valve of a refrigerating system, in particular to a condensing pressure regulating valve.
Background
The condensing pressure is one of the main operation parameters in the refrigeration cycle, and directly influences the refrigeration effect, safety, reliability and energy consumption of the refrigeration unit. When the condensing pressure is higher, the compression ratio is increased, the volumetric efficiency is reduced, the refrigerating capacity is reduced, the power consumption is increased, and the exhaust temperature is increased. The higher the condensation pressure, the greater its degree of adverse effect. The phenomenon of higher condensation pressure mainly occurs in summer, and the condensation pressure is reduced as far as possible at this time so as to ensure the economical efficiency and reliability of the system operation. However, in the case of a refrigeration system operating all year round, the condensation pressure may be too low during winter operation. When the condensing pressure is too low, the pressure difference between the front and the back of the expansion valve is too small, the capacity of the expansion valve is reduced, the liquid supply capacity is insufficient, the evaporator is lack of liquid, and the refrigerating capacity of the system is greatly reduced. Therefore, the condensing pressure must be controlled within a reasonable range to sufficiently ensure the performance of the refrigeration system.
The condensing pressure regulating valve is generally installed on a cooling water pipeline of the condenser (usually installed at a water inlet end of the condenser), and regulates a flow rate of the cooling water according to a change of the condensing pressure. It is to adjust the valve opening by directly sensing the pressure change of the refrigerant cycle to allow enough cooling water to flow through, which saves a large amount of cooling water. To sum up: cooling as required. When the condensing pressure of the compressor is increased (namely the condensing pressure is increased), the valve can be automatically opened to be large, so that more cooling water enters the condenser, and the condensing speed of the refrigerant is increased; on the contrary, when the condensing pressure is reduced, the valve can be automatically closed, so that the amount of cooling water entering the condenser is reduced, and the condensing pressure is kept in a certain range. The function of the condenser is of crucial importance for the proper operation of the refrigeration equipment, and therefore technical research on the condenser has never been interrupted.
The condensing pressure regulating valve is an important component for determining the working effect of the condenser, is a necessary device for connecting the refrigerating compressor and the cooling water pipeline and controls the refrigerating effect of the condenser. The existing condensation regulating control valve is of a pilot-operated structure, parts are mostly connected in modes of welding and the like, maintainability is poor, and the refrigerating effect is poor due to the fact that the response speed is low in the operation process.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, embodiments of the present invention provide a condensing pressure regulating valve to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a condensation pressure regulating valve, includes the valve body, the inside of valve body is equipped with valve port, feed liquor chamber and goes out the liquid chamber, the valve port is established between feed liquor chamber and play liquid chamber, valve port department is equipped with the valve port cushion, just the top of valve body is equipped with the valve gap, adjusting screw is installed to the middle-end screw thread of valve gap, the fixed plate is installed to adjusting screw's bottom, the sleeve is installed to the bottom of fixed plate, telescopic spring is installed on telescopic inside top, the piston is installed to telescopic spring's bottom, the valve rod is installed to the bottom of piston, the bottom of valve rod runs through the sleeve and extends to telescopic below, the case is installed to the bottom of valve rod, the case is established in valve port department.
In a preferred embodiment, the valve cover and the valve body are fixed through a threaded nail, and a nut is mounted on the threaded nail in a threaded mode.
In a preferred embodiment, a first O-ring is arranged at the joint of the valve cover and the valve body.
In a preferred embodiment, a second O-ring is arranged at the joint of the adjusting screw rod and the valve cover.
In a preferred embodiment, an adjusting handle is mounted at the top end of the adjusting screw.
In a preferred embodiment, the liquid inlet chamber is in communication with a liquid inlet pipe.
In a preferred embodiment, the outlet chamber is in communication with an outlet pipe.
Compared with the prior art, the invention has the following technical effects and advantages:
the invention is characterized in that an adjusting screw rod is installed at the middle end of a valve cover in a threaded manner, a fixing plate is installed at the bottom end of the adjusting screw rod, a sleeve is installed at the bottom end of the fixing plate, an expansion spring is installed at the top end inside the sleeve, a piston is installed at the bottom end of the expansion spring, a valve rod is installed at the bottom end of the piston, the bottom end of the valve rod penetrates through the sleeve and extends to the lower part of the sleeve, a valve core is installed at the bottom end of the valve rod, the valve core is arranged at a valve opening, an adjusting handle is rotated and drives the adjusting screw rod to rotate, the fixing plate and the sleeve rotate and move up and down to adjust the height, the expansion spring is compressed by the up-and-down height adjustment of the sleeve, the expansion spring extrudes the valve core through the valve rod, so that the expansion spring is conveniently extruded by the up-and-down height adjustment of the sleeve to set the initial pressure of the expansion spring, when the liquid pressure is less than the initial pressure of the expansion spring, the valve core can not be opened, when the liquid pressure is greater than the initial pressure of the telescopic spring, the valve core is driven to move upwards, the valve core drives the valve rod to move upwards, the valve rod drives the piston to move upwards, the piston extrudes the telescopic spring, the larger the liquid pressure is, the higher the valve core rises, the larger the valve core is opened, the larger the flow of the condensation pressure regulating valve is, the high response speed is, and the refrigeration effect is good; the valve gap is fixed through the screw thread nail with the valve body, and the nut is installed to the screw thread on the screw thread nail, and the junction of valve gap and valve body is equipped with first O type circle, and second O type circle is installed with the junction of valve gap to adjusting screw, and convenient to detach maintains, and the leakproofness is good moreover.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
The reference signs are: 1. a valve body; 2. a valve port; 3. a liquid inlet cavity; 4. a liquid outlet cavity; 5. a valve port cushion; 6. a valve cover; 7. adjusting the screw rod; 8. adjusting the handle; 9. a fixing plate; 10. a sleeve; 11. a tension spring; 12. a piston; 13. a valve stem; 14. a valve core; 15. a threaded nail; 16. a nut; 17. a first O-ring; 18. a second O-ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The condensation pressure regulating valve shown in fig. 1 comprises a valve body 1, wherein a valve port 2, a liquid inlet cavity 3 and a liquid outlet cavity 4 are arranged inside the valve body 1, the valve port 2 is arranged between the liquid inlet cavity 3 and the liquid outlet cavity 4, a valve port cushion 5 is arranged at the valve port 2, a valve cover 6 is arranged at the top end of the valve body 1, an adjusting screw 7 is arranged at the middle end of the valve cover 6 in a threaded manner, a fixing plate 9 is arranged at the bottom end of the adjusting screw 7, a sleeve 10 is arranged at the bottom end of the fixing plate 9, an expansion spring 11 is arranged at the top end inside the sleeve 10, a piston 12 is arranged at the bottom end of the expansion spring 11, a valve rod 13 is arranged at the bottom end of the piston 12, the bottom end of the valve rod 13 penetrates through the sleeve 10 and extends to the lower side of the sleeve 10, a valve core 14 is arranged at the bottom end of the valve rod 13, and the valve core 14 is arranged at the valve port 2.
In a preferred embodiment, the bonnet 6 and the valve body 1 are fixed by a screw 15, a nut 16 is screwed on the screw 15, the bonnet 6 is fixed on the valve body 1 by the screw 15, and the screw 15 is fixed by the nut 16 to prevent looseness.
In a preferred embodiment, a first O-ring 17 is arranged at the joint of the valve cover 6 and the valve body 1, and the first O-ring 17 is convenient for preventing the joint of the valve cover 6 and the valve body 1 from leaking.
In a preferred embodiment, a second O-ring 18 is installed at the joint of the adjusting screw 7 and the valve cover 6, and the second O-ring 18 is convenient for preventing the joint of the adjusting screw 7 and the valve cover 6 from leaking.
In a preferred embodiment, an adjusting handle 8 is installed at the top end of the adjusting screw 7, so that the adjusting screw 7 can be rotated by the adjusting handle 8, the adjusting screw 7 rotates to drive the fixing plate 9 and the sleeve 10 to rotate and move up and down to adjust the height, the sleeve 10 compresses the telescopic spring 11, the telescopic spring 11 extrudes the piston 12, the piston 12 extrudes the valve plug 14 at the valve port 2 through the valve rod 13, and therefore the telescopic spring 11 is extruded by the sleeve 10 through the height adjusted up and down to set the initial pressure of the telescopic spring 11.
In a preferred embodiment, the liquid inlet chamber 3 is communicated with a liquid inlet pipe, so that the liquid in the liquid inlet pipe can flow into the liquid inlet chamber 3 of the valve body 1.
In a preferred embodiment, the liquid outlet cavity 4 is communicated with a liquid outlet pipe, so that the liquid in the liquid outlet cavity 4 of the valve body 1 can flow into the liquid outlet pipe.
In summary, the invention provides a condensation pressure regulating valve, an adjusting screw 7 is installed at the middle end of a valve cover 6 in a threaded manner, a fixed plate 9 is installed at the bottom end of the adjusting screw 7, a sleeve 10 is installed at the bottom end of the fixed plate 9, an expansion spring 11 is installed at the top end inside the sleeve 10, a piston 12 is installed at the bottom end of the expansion spring 11, a valve rod 13 is installed at the bottom end of the piston 12, the bottom end of the valve rod 13 penetrates through the sleeve 10 and extends to the lower portion of the sleeve 10, a valve core 14 is installed at the bottom end of the valve rod 13, the valve core 14 is arranged at a valve port 2, the adjusting handle 8 is rotated to drive the adjusting screw 7 to rotate, the adjusting screw 7 drives the fixed plate 9 and the sleeve 10 to rotate and move up and down to adjust the height, the expansion spring 11 is compressed by the up-and down adjustment height of the sleeve 10, the piston 12 extrudes the valve core 14 at the valve port 2 through the valve rod 13, and therefore the expansion spring 11 is convenient to set the initial pressure of the expansion spring 11 by the up-and down adjustment height of the sleeve 10 Force, liquid flows into the liquid inlet cavity 3 of the valve body 1, when the liquid pressure is smaller than the initial pressure of the telescopic spring 11, the valve core 14 cannot be opened, when the liquid pressure is larger than the initial pressure of the telescopic spring 11, the valve core 14 is driven to move upwards, the valve core 14 drives the valve rod 13 to move upwards, the valve rod 13 drives the piston 12 to move upwards, the piston 12 extrudes the telescopic spring 11, the larger the liquid pressure is, the higher the valve core 14 rises, the larger the valve core is opened, the larger the flow of the condensation pressure regulating valve is, the response speed is high, and the refrigeration effect is good; the valve cover 6 is fixed with the valve body 1 through a threaded nail 15, a nut 16 is installed on the threaded nail 15 through threads, a first O-shaped ring 17 is arranged at the joint of the valve cover 6 and the valve body 1, a second O-shaped ring 18 is installed at the joint of the adjusting screw 7 and the valve cover 6, the valve cover is convenient to detach and maintain, and the sealing performance is good.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims (7)

1. A condensation pressure regulating valve comprises a valve body (1), and is characterized in that: the valve comprises a valve body (1), a valve port (2), a liquid inlet cavity (3) and a liquid outlet cavity (4) are arranged in the valve body (1), the valve port (2) is arranged between the liquid inlet cavity (3) and the liquid outlet cavity (4), a valve port cushion (5) is arranged at the valve port (2), a valve cover (6) is arranged at the top end of the valve body (1), an adjusting screw (7) is installed at the middle end of the valve cover (6) in a threaded manner, a fixing plate (9) is installed at the bottom end of the adjusting screw (7), a sleeve (10) is installed at the bottom end of the fixing plate (9), a telescopic spring (11) is installed at the top end in the sleeve (10), a piston (12) is installed at the bottom end of the telescopic spring (11), a valve rod (13) is installed at the bottom end of the piston (12), the bottom end of the valve rod (13) penetrates through the sleeve (10) and extends to the lower part of the sleeve (10), a valve core (14) is installed at the bottom end of the valve rod (13), the valve core (14) is arranged at the valve port (2).
2. A condensing pressure regulating valve according to claim 1, wherein: the valve cover (6) is fixed with the valve body (1) through a threaded nail (15), and a nut (16) is installed on the threaded nail (15) in a threaded mode.
3. A condensing pressure regulating valve according to claim 1, wherein: a first O-shaped ring (17) is arranged at the joint of the valve cover (6) and the valve body (1).
4. A condensing pressure regulating valve according to claim 1, wherein: and a second O-shaped ring (18) is arranged at the joint of the adjusting screw rod (7) and the valve cover (6).
5. A condensing pressure regulating valve according to claim 1, wherein: and an adjusting handle (8) is installed at the top end of the adjusting screw rod (7).
6. A condensing pressure regulating valve according to claim 1, characterized in that: the liquid inlet cavity (3) is communicated with a liquid inlet pipe.
7. A condensing pressure regulating valve according to claim 1, characterized in that: the liquid outlet cavity (4) is communicated with the liquid outlet pipe.
CN202210237580.0A 2022-03-10 2022-03-10 Condensing pressure regulating valve Pending CN114673812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210237580.0A CN114673812A (en) 2022-03-10 2022-03-10 Condensing pressure regulating valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210237580.0A CN114673812A (en) 2022-03-10 2022-03-10 Condensing pressure regulating valve

Publications (1)

Publication Number Publication Date
CN114673812A true CN114673812A (en) 2022-06-28

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ID=82073231

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210237580.0A Pending CN114673812A (en) 2022-03-10 2022-03-10 Condensing pressure regulating valve

Country Status (1)

Country Link
CN (1) CN114673812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115788821A (en) * 2022-12-22 2023-03-14 广州万固压缩机有限公司 Large-inclination-angle compressor

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204756040U (en) * 2015-05-20 2015-11-11 天津斯维克阀业有限公司 Adjustable check valve
CN206802423U (en) * 2017-04-19 2017-12-26 邓树超 A kind of voltage stabilizing variable rate valve
CN206918261U (en) * 2017-07-04 2018-01-23 上海泰科龙阀门有限公司 A kind of adjustable pressure-reducing valve
CN207701849U (en) * 2017-12-20 2018-08-07 江苏益马机械有限公司 A kind of adjustable ball-and-seat of energy emergency shutdown
CN109268543A (en) * 2018-11-23 2019-01-25 雷纳德流体智能科技江苏股份有限公司 A kind of horizontal check valve
CN110296238A (en) * 2019-05-31 2019-10-01 盐城市大丰洪联铸钢有限责任公司 A kind of one-way valve structures
CN209909248U (en) * 2019-05-22 2020-01-07 河南旭迈实业有限公司 Check valve for horizontal positive displacement heat exchanger
CN112460301A (en) * 2020-11-06 2021-03-09 中国石油天然气股份有限公司 Pressure regulating valve
CN213064781U (en) * 2020-08-31 2021-04-27 江苏科信燃气设备有限公司 Stable form gas pressure regulator
CN113187936A (en) * 2021-05-28 2021-07-30 安徽省白湖阀门厂有限责任公司 Intelligent adjusting device of check valve
CN214838447U (en) * 2021-06-15 2021-11-23 深圳市福斯特智能装备有限公司 Novel static valve mechanism

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204756040U (en) * 2015-05-20 2015-11-11 天津斯维克阀业有限公司 Adjustable check valve
CN206802423U (en) * 2017-04-19 2017-12-26 邓树超 A kind of voltage stabilizing variable rate valve
CN206918261U (en) * 2017-07-04 2018-01-23 上海泰科龙阀门有限公司 A kind of adjustable pressure-reducing valve
CN207701849U (en) * 2017-12-20 2018-08-07 江苏益马机械有限公司 A kind of adjustable ball-and-seat of energy emergency shutdown
CN109268543A (en) * 2018-11-23 2019-01-25 雷纳德流体智能科技江苏股份有限公司 A kind of horizontal check valve
CN209909248U (en) * 2019-05-22 2020-01-07 河南旭迈实业有限公司 Check valve for horizontal positive displacement heat exchanger
CN110296238A (en) * 2019-05-31 2019-10-01 盐城市大丰洪联铸钢有限责任公司 A kind of one-way valve structures
CN213064781U (en) * 2020-08-31 2021-04-27 江苏科信燃气设备有限公司 Stable form gas pressure regulator
CN112460301A (en) * 2020-11-06 2021-03-09 中国石油天然气股份有限公司 Pressure regulating valve
CN113187936A (en) * 2021-05-28 2021-07-30 安徽省白湖阀门厂有限责任公司 Intelligent adjusting device of check valve
CN214838447U (en) * 2021-06-15 2021-11-23 深圳市福斯特智能装备有限公司 Novel static valve mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115788821A (en) * 2022-12-22 2023-03-14 广州万固压缩机有限公司 Large-inclination-angle compressor
CN115788821B (en) * 2022-12-22 2023-07-04 广州万固压缩机有限公司 Large-inclination compressor

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