CN111022736A - Evaporating pressure regulating valve capable of electrically regulating pressure - Google Patents
Evaporating pressure regulating valve capable of electrically regulating pressure Download PDFInfo
- Publication number
- CN111022736A CN111022736A CN201911323307.4A CN201911323307A CN111022736A CN 111022736 A CN111022736 A CN 111022736A CN 201911323307 A CN201911323307 A CN 201911323307A CN 111022736 A CN111022736 A CN 111022736A
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- Prior art keywords
- valve
- adjusting
- pressure
- cylinder
- assembly
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- 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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- 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
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- 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
- F16K31/53—Mechanical actuating means with toothed gearing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses an evaporation pressure regulating valve capable of electrically regulating pressure, which comprises a valve body and an electric regulating mechanism capable of regulating a preset pressure value in the valve, wherein the valve body is connected with the electric regulating mechanism, the valve body comprises a main cylinder and a regulating cylinder, and an air inlet channel, a cavity, a pressure testing port, a valve port, an inner cavity and an air outlet channel which are communicated are arranged in the main cylinder.
Description
Technical Field
The invention relates to the field of evaporation pressure regulating valves, in particular to an evaporation pressure regulating valve capable of electrically regulating pressure.
Background
The evaporation pressure regulating valve can regulate the preset evaporation pressure value in the valve through the spring, when the load of the evaporator is increased to cause the evaporation pressure to rise, the valve rod assembly can overcome the spring pressure and push the valve plate to increase the opening of the valve, so that the flow of refrigerant flowing out of the evaporator is increased, the evaporation pressure is reduced, and the pressure is kept in the range of a set value. On the contrary, if the evaporation pressure is reduced due to the reduction of the load of the evaporator, the valve rod assembly closes the valve opening to reduce the refrigerant flowing out of the evaporator, so that the evaporation pressure is increased back to the range of the set value, and therefore, the evaporation pressure regulating valve controls the displacement of the compressor by regulating the valve clearance to keep the evaporation pressure in a stable range corresponding to the preset evaporation pressure value, so as to maintain the relatively stable evaporation temperature.
The evaporating pressure regulating valve on the existing market is manually regulated, and two problems mainly exist:
1, each time pressure adjustment is carried out, the pressure adjustment must be carried out on site, and the operation is inconvenient.
2, the adjusting distance is determined according to the rotation angle and the number of turns of the scales or the threads, and the adjusting accuracy is difficult to guarantee.
Disclosure of Invention
The invention aims to provide an evaporation pressure regulating valve capable of electrically regulating pressure aiming at the defects of the prior art so as to achieve the purposes of remotely and automatically regulating and accurately regulating a preset pressure value.
The technical scheme adopted by the invention is as follows: the utility model provides a but evaporation pressure governing valve of electrical control pressure, includes the inside electrical control mechanism who predetermines the pressure value of valve body and adjustable valve, the valve body is connected with electrical control mechanism.
Further, the valve body comprises a main body cylinder and an adjusting cylinder, and an air inlet channel, a cavity, a pressure testing port, a valve port, an inner cavity and an air outlet channel which are communicated are arranged in the main body cylinder.
Further, still include valve rod assembly, bellows, coupling spring and four directions regulation pole, valve rod assembly includes valve rod and valve plate, valve rod assembly one end is passed through the valve plate and is connected with main part jar valve gate, and the valve rod assembly other end is connected with the bottom of bellows, coupling spring one end penetrates the bellows inside and is connected with the valve rod assembly one end of bellows bottom, and the coupling spring other end is connected with four directions regulation pole, the bellows provides flexible surplus for valve rod assembly's reciprocating motion.
Furthermore, the adjusting cylinder is internally provided with a first adjusting thread and a second adjusting thread, the inner wall of the adjusting cylinder is in threaded engagement with the outer wall of the main cylinder through the first adjusting thread so as to adjust the position of the inner space and pre-compress the connecting spring, the square adjusting rod is in threaded engagement with the second adjusting thread inside the adjusting cylinder through the external thread disc and enables the square adjusting rod to be adjusted in a reciprocating manner so as to finely adjust the pressure of the connecting spring.
Furthermore, the bellows divides the inner space of the main body cylinder into an inner cavity and an outer cavity, the inner cavity and the outer cavity are not communicated, and the inner cavity is communicated with the valve port and the air outlet channel port.
Further, electric adjusting mechanism includes drive assembly and spacing subassembly, drive assembly is used for automatically regulated evaporating pressure regulating valve's the pressure value of predetermineeing, spacing subassembly is used for injecing the scope that evaporating pressure regulating valve predetermines the pressure value.
Further, the driving assembly comprises a motor, a speed reducer, a first gear and a second gear, the motor is connected with the speed reducer, the first gear is installed on an output shaft of the speed reducer and meshed with the second gear, and the driving assembly is connected with the evaporation pressure regulating valve.
Furthermore, the limiting assembly comprises a first travel switch and a second travel switch, and the first travel switch and the second travel switch are arranged in the same direction at intervals.
The invention has the beneficial effects that:
the adjusting cylinder is provided with a first adjusting thread and a second adjusting thread, and the first adjusting thread and the second adjusting thread respectively perform coarse adjustment and fine adjustment on a preset pressure value by adopting different thread pitches, so that more accurate adjustment and control are realized.
2, the invention is provided with an electric adjusting mechanism, the preset pressure value of the evaporation pressure adjusting valve can be adjusted through the electric adjusting mechanism, and manual work is replaced by the electric adjusting mechanism, so that automatic adjustment and accurate regulation and control of the internal pressure of the valve are realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an internal cross-sectional view of the present invention;
fig. 3 is an exploded view of the present invention.
The valve comprises a valve body 1, a valve body 2, an electric adjusting mechanism 21, a driving assembly 22, a limiting assembly 11, a main body cylinder 12, an adjusting cylinder 13, a valve rod assembly 14, a corrugated pipe 15, a connecting spring 16, a square adjusting rod 111, an air inlet channel 112, a chamber 113, a pressure testing port 114, a valve port 115, an inner cavity 116, an air outlet channel 117, an outer cavity 121, a first adjusting thread, a second adjusting thread 122, a valve plate 132, a damping spring 161, an external thread disc 162, a circular block 211, a motor 212, a speed reducer 213, a first gear 214, a second gear 221, a first travel switch 222 and a second travel switch.
Detailed Description
The invention is further illustrated by the following examples in connection with the accompanying drawings.
As shown in fig. 1 to 3, the technical scheme adopted by the invention is as follows: the utility model provides a but evaporation pressure governing valve of electrical control pressure, includes valve body 1 and electrical control mechanism 2, valve body 1 and electrical control mechanism 2 fixed connection, electrical control mechanism 2 are used for the inside pressure value of predetermineeing of adjusting valve to replace the manual work with this, realize valve pressure's automatically regulated and accurate regulation and control.
The valve body 1 comprises a main body cylinder 11 and an adjusting cylinder 12, the main body cylinder 11 is connected with the adjusting cylinder 12, an air inlet channel 111, a chamber 112, a valve port 114, an inner cavity 115 and an air outlet channel 116 are arranged in the main body cylinder 11 and are communicated with each other, the main body cylinder 11 is mainly used for controlling the passing of refrigerant gas from an evaporator, the refrigerant gas enters the chamber 112 from the air inlet channel 111, then enters the inner cavity 115 through the valve port 114 and is discharged from the air outlet channel 116, and a component for adjusting the preset pressure of the valve is installed in the adjusting cylinder 12.
The main body cylinder 11 is provided with an outer cavity 117 and an inner cavity 115, the outer cavity 117 and the inner cavity 115 are not communicated, the inner cavity 115 is communicated with the cavity 112 and forms an internal pipeline of the refrigeration system, and the outer cavity 117 is communicated with an external atmospheric space.
Wherein, main part jar 11 side is equipped with pressure test mouth 113, and pressure test mouth 113 is used for the installation to detect the manometer of refrigeration pipeline.
The main body cylinder 11 and the adjustment cylinder 12 are connected to each other by a first adjustment screw 121, whereby coarse adjustment of the valve pressure is performed when the valve is mounted.
The valve body 1 is internally provided with a valve rod assembly 13, a corrugated pipe 14, a connecting spring 15 and a square adjusting rod 16, the valve rod assembly 13 comprises a valve plate 131 and a valve rod, the valve rod is provided with a damping spring 132, the valve plate 131 is positioned at the port of a valve port 114 of the main body cylinder 11 and is blocked on the port so as to control the passage of gas, the valve rod is connected with the bottom of the corrugated pipe 14, one end of the connecting spring 15 penetrates into the corrugated pipe 14 and is connected with the valve rod assembly 13 at the bottom of the corrugated pipe 14, the other end of the connecting spring 15 is connected with the square adjusting rod 16, the corrugated pipe 14 is arranged in the main body cylinder 11 and is connected with the valve rod assembly 13, the corrugated pipe 14 provides telescopic allowance for the reciprocating movement of the valve rod assembly 13, one end of the square adjusting rod 16 is positioned in an outer cavity 117 of the main body cylinder 11 and is provided with an external thread disc 161, the external thread disc is provided with air holes to ensure the communication between the external cavity and the outdoor atmosphere. The other end of the square adjusting rod 16 is located outside the adjusting cylinder 12, and a circular block 162 is arranged at the end port of the end.
Wherein, the square adjusting rod 16 is used for adjusting the force of the connecting spring 15 acting on the valve rod assembly 13 by screw feeding, the acting force and the force acting on the valve rod assembly when the refrigerant gas passes through the valve plate 131 reach a mutual balance (the balance force is the preset pressure value of the evaporation pressure adjusting valve), and because the force acting on the valve plate by the gas inside the inner cavity 115 and the force acting on the corrugated pipe counteract each other, the force required when the connecting spring 15 pushes the valve rod assembly 13 is adjusted by the square adjusting rod 16, the preset pressure value entering the evaporator of the valve body 1 through the pipeline can be adjusted, and during the movement of the valve rod assembly 13, the corrugated pipe 14 and the damping spring 132 can also provide a pulling force or a pushing force, the forces provided by the two mutually restrict, so that the valve rod assembly 13 is kept in a stable state, thereby the valve rod assembly 13 is kept at a certain, this pressure is the preset pressure value of the evaporation pressure regulating valve.
Refrigerant gas of the evaporator enters the chamber 112 from the air inlet channel 111, then enters the inner cavity 115 through the valve port 114, and when the evaporation pressure value of the evaporator is greater than the preset pressure value, the valve rod assembly 13 is pushed open, so that the gap of the valve port 114 is increased, the refrigerant flowing out of the evaporator is increased, the evaporation pressure is reduced, and the refrigerant returns to the preset pressure value again; on the contrary, when the evaporation pressure of the evaporator is smaller than the preset pressure value, the electric adjusting mechanism 2 reduces the gap of the valve port 114, so that the refrigerant flowing out of the evaporator is reduced, and the evaporation pressure is increased to return to the preset pressure value again.
The electric adjusting mechanism 2 comprises a driving assembly 21 and a limiting assembly 22, wherein the driving assembly 21 is connected with the square adjusting rod 16 and drives the square adjusting rod 16 to reciprocate, so that the acting force of the connecting spring and the corrugated pipe on the valve rod assembly 13 is changed, the preset pressure value is adjusted, the pressure of refrigerant gas in the evaporator pipeline is adjusted, and the pressure is controlled within a certain range through the limiting assembly 22.
The limit assembly 22 includes a first travel switch 221 and a second travel switch 222, the circular block 162 at the tail of the four-direction adjusting rod 16 is located between the first travel switch 221 and the second travel switch 222, the first travel switch 221 and the second travel switch 222 are two pressure limit adjusting points for limiting the moving range of the four-direction adjusting rod 16, so as to regulate and control the gas pressure range of the internal cavity 112 of the main body cylinder 11, and when the tail of the four-direction adjusting rod 16 moves to the travel switches and triggers the travel switch contacts, the driving assembly is stopped by a controller (not shown in the figure), so that the adjustment of the evaporation pressure is limited within a safety range allowed by the refrigeration system.
The driving assembly 21 includes a motor 211, a speed reducer 212, a first gear 213 and a second gear 214, the motor 211 is connected to the speed reducer 212, the first gear 213 is mounted on an output shaft of the speed reducer 212, the first gear 213 is engaged with the second gear 214, an inner ring of the second gear 214 is connected to the square adjusting rod 16, and an inner ring of the second gear 214 is square and corresponds to a connection portion of the square adjusting rod 16, the motor 211 provides power to drive the square adjusting rod 16 to rotate, and the motor 211 provides power to engage with a second thread on an inner wall of the adjusting cylinder 12 to generate axial movement, so as to adjust a pressure applied to the valve rod assembly 13 by the connecting spring 15.
The electric adjusting mechanism 2 is provided with a protection block (see fig. 2), and the protection block is used for protecting the motor 211, the speed reducer 212 and the limiting assembly 22.
The invention is provided with the electric adjusting mechanism, the preset pressure value of the evaporation pressure adjusting valve can be adjusted through the electric adjusting mechanism, and manual work is replaced by the electric adjusting mechanism, so that automatic adjustment and accurate regulation and control of the internal pressure of the valve are realized.
The above description is only a preferred embodiment of the present invention, the present invention is not limited to the above embodiment, and there may be some slight structural changes in the implementation, and if there are various changes or modifications to the present invention without departing from the spirit and scope of the present invention, and within the claims and equivalent technical scope of the present invention, the present invention is also intended to include those changes and modifications.
Claims (8)
1. An evaporation pressure regulating valve capable of electrically regulating pressure, which is characterized in that: the electric adjusting mechanism comprises a valve body and an electric adjusting mechanism capable of adjusting the internal preset pressure value of the valve, wherein the valve body is connected with the electric adjusting mechanism.
2. The electrically adjustable pressure evaporating pressure regulating valve as claimed in claim 1, wherein: the valve body comprises a main body cylinder and an adjusting cylinder, the main body cylinder is connected with the adjusting cylinder, and an air inlet channel, a cavity, a pressure testing port, a valve port, an inner cavity and an air outlet channel which are communicated with each other are arranged in the main body cylinder.
3. The electrically adjustable pressure evaporating pressure regulating valve as claimed in claim 2, wherein: still include valve rod assembly, bellows, coupling spring and four directions regulation pole, valve rod assembly includes valve rod and valve plate, valve rod assembly one end is passed through the valve plate and is connected with main part jar valve gate, and the valve rod assembly other end is connected with the bottom of bellows, coupling spring one end penetrates the bellows inside and is connected with the valve rod assembly one end of bellows bottom, and the coupling spring other end is connected with four directions regulation pole, the bellows provides flexible surplus for valve rod assembly's reciprocating motion.
4. The electrically adjustable pressure evaporating pressure regulating valve as claimed in claim 3, wherein: the adjusting cylinder is internally provided with a first adjusting thread and a second adjusting thread, the inner wall of the adjusting cylinder is in threaded engagement with the outer wall of the main cylinder through the first adjusting thread, so that the inner space position is adjusted and the connecting spring is pre-compressed, the square adjusting rod is in threaded engagement connection with the second adjusting thread inside the adjusting cylinder through the external thread disc, and the square adjusting rod is made to perform reciprocating adjustment to the connecting spring to perform fine pressure adjustment.
5. The electrically adjustable pressure evaporating pressure regulating valve as claimed in claim 3, wherein: the bellows divides the inner space of the main cylinder into an inner cavity and an outer cavity, the inner cavity and the outer cavity are not communicated, and the inner cavity is communicated with the valve port and the air outlet channel port.
6. The electrically adjustable pressure evaporating pressure regulating valve as claimed in claim 1, wherein: the electric adjusting mechanism comprises a driving assembly and a limiting assembly, the driving assembly is used for automatically adjusting the preset pressure value of the evaporation pressure adjusting valve, and the limiting assembly is used for limiting the range of the preset pressure value of the evaporation pressure adjusting valve.
7. The electrically adjustable pressure evaporating pressure regulating valve as claimed in claim 6, wherein: the driving assembly comprises a motor, a speed reducer, a first gear and a second gear, the motor is connected with the speed reducer, the first gear is installed on an output shaft of the speed reducer and meshed with the second gear, and the driving assembly is connected with the evaporation pressure regulating valve.
8. The electrically adjustable pressure evaporating pressure regulating valve as claimed in claim 6, wherein: the limiting assembly comprises a first travel switch and a second travel switch, and the first travel switch and the second travel switch are arranged in the same direction at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911323307.4A CN111022736B (en) | 2019-12-20 | 2019-12-20 | Evaporating pressure regulating valve capable of electrically regulating pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911323307.4A CN111022736B (en) | 2019-12-20 | 2019-12-20 | Evaporating pressure regulating valve capable of electrically regulating pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111022736A true CN111022736A (en) | 2020-04-17 |
| CN111022736B CN111022736B (en) | 2022-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911323307.4A Active CN111022736B (en) | 2019-12-20 | 2019-12-20 | Evaporating pressure regulating valve capable of electrically regulating pressure |
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| Country | Link |
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| CN (1) | CN111022736B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI816173B (en) * | 2021-07-15 | 2023-09-21 | 桃園冷鏈科技股份有限公司 | Refrigeration apparatus and cooler comprising the same |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2130689B (en) * | 1982-01-15 | 1985-06-26 | Koomey Inc | Pressure reducing and regulating valve |
| CN85105826A (en) * | 1984-10-02 | 1986-03-10 | Tlv有限公司 | Pressure reducing valve with pressure automatic setting |
| CN2072179U (en) * | 1990-04-05 | 1991-02-27 | 蒋淑娟 | Controller for fluid pressure |
| CN102996873A (en) * | 2011-09-08 | 2013-03-27 | 北京航天动力研究所 | Driving type decompression valve capable of automatically adjusting high-accuracy stepping motor |
| CN204201205U (en) * | 2014-11-06 | 2015-03-11 | 浙江三花股份有限公司 | Pressure regulator valve |
| CN204756060U (en) * | 2015-06-26 | 2015-11-11 | 上海奉申制冷控制器有限公司 | Evaporating pressure governing valve |
| CN105114659A (en) * | 2015-09-10 | 2015-12-02 | 哈尔滨市农业科学院 | Control valve for achieving quick pressure relief and same branch pressure in pesticide liquid spraying |
| CN107763265A (en) * | 2016-08-23 | 2018-03-06 | 浙江三花制冷集团有限公司 | Pressure-regulating valve |
| CN109737227A (en) * | 2019-01-29 | 2019-05-10 | 湖北三江航天红峰控制有限公司 | Safety valve |
| CN110259972A (en) * | 2019-07-11 | 2019-09-20 | 武汉奥特多电子科技有限公司 | A kind of pressure valve with electronic pressure sensor |
-
2019
- 2019-12-20 CN CN201911323307.4A patent/CN111022736B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2130689B (en) * | 1982-01-15 | 1985-06-26 | Koomey Inc | Pressure reducing and regulating valve |
| CN85105826A (en) * | 1984-10-02 | 1986-03-10 | Tlv有限公司 | Pressure reducing valve with pressure automatic setting |
| CN2072179U (en) * | 1990-04-05 | 1991-02-27 | 蒋淑娟 | Controller for fluid pressure |
| CN102996873A (en) * | 2011-09-08 | 2013-03-27 | 北京航天动力研究所 | Driving type decompression valve capable of automatically adjusting high-accuracy stepping motor |
| CN204201205U (en) * | 2014-11-06 | 2015-03-11 | 浙江三花股份有限公司 | Pressure regulator valve |
| CN204756060U (en) * | 2015-06-26 | 2015-11-11 | 上海奉申制冷控制器有限公司 | Evaporating pressure governing valve |
| CN105114659A (en) * | 2015-09-10 | 2015-12-02 | 哈尔滨市农业科学院 | Control valve for achieving quick pressure relief and same branch pressure in pesticide liquid spraying |
| CN107763265A (en) * | 2016-08-23 | 2018-03-06 | 浙江三花制冷集团有限公司 | Pressure-regulating valve |
| CN109737227A (en) * | 2019-01-29 | 2019-05-10 | 湖北三江航天红峰控制有限公司 | Safety valve |
| CN110259972A (en) * | 2019-07-11 | 2019-09-20 | 武汉奥特多电子科技有限公司 | A kind of pressure valve with electronic pressure sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI816173B (en) * | 2021-07-15 | 2023-09-21 | 桃園冷鏈科技股份有限公司 | Refrigeration apparatus and cooler comprising the same |
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| Publication number | Publication date |
|---|---|
| CN111022736B (en) | 2022-04-22 |
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