CN115143316A - Control valve and refrigerating system - Google Patents
Control valve and refrigerating system Download PDFInfo
- Publication number
- CN115143316A CN115143316A CN202210744642.7A CN202210744642A CN115143316A CN 115143316 A CN115143316 A CN 115143316A CN 202210744642 A CN202210744642 A CN 202210744642A CN 115143316 A CN115143316 A CN 115143316A
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- Prior art keywords
- hole
- blocking
- piece
- control valve
- wall
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- 230000000903 blocking effect Effects 0.000 claims abstract description 83
- 238000005057 refrigeration Methods 0.000 claims abstract description 33
- 239000012530 fluid Substances 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 239000003507 refrigerant Substances 0.000 claims description 38
- 238000011144 upstream manufacturing Methods 0.000 claims description 17
- 238000012423 maintenance Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000741 silica gel Substances 0.000 description 6
- 229910002027 silica gel Inorganic materials 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000036541 health Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
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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
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—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
- 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
- F16K1/14—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 with ball-shaped valve member
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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
- F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention relates to the field of refrigeration, in particular to a control valve and a refrigeration system, which comprise a valve body, wherein a through hole penetrating through the valve body is formed in the valve body, a first blocking piece is arranged at the first end close to the through hole, and a second blocking piece is arranged at the second end close to the through hole; a concave cavity is formed on the hole wall of the through hole between the first blocking piece and the second blocking piece, and an electromagnetic piece is arranged on the valve body at a position opposite to the concave cavity; a plugging piece is arranged in the through hole between the first blocking piece and the second blocking piece, and the electromagnetic piece is electrified to generate a magnetic field to attract at least part of the plugging piece to be arranged in the concave cavity so as to open the through hole; when the electromagnetic part is powered off, the blocking part abuts against the second blocking part under the pressure of fluid from the first end of the through hole, and the through hole is closed; or the blocking piece is propped against the first blocking piece under the pressure of the fluid from the second end of the through hole, and the through hole is closed, so that the technical problem that the valve is required to be manually controlled to be opened and closed is solved.
Description
Technical Field
The invention relates to the field of refrigeration, in particular to a control valve and a refrigeration system.
Background
The air conditioner is used extensively in the life, the air conditioner needs maintenance and maintenance after using for a long time, when the maintenance, need retrieve the refrigerant sometimes in order to conveniently dismantle the connecting tube, the staff need manual closing control valve behind retrieving the refrigerant, and judge whether to retrieve the completion through artifical observation and working experience, this factor that leads to the people influences great to operating mass, retrieve incompletely and dismantle the work of pipeline when the refrigerant, can cause the refrigerant to reveal, the polluted environment, and cause the damage to people's health.
In view of the above problems, no better solution is available at present.
Disclosure of Invention
The invention provides a control valve and a refrigeration system, which at least solve the technical problem that the valve needs to be manually controlled to be opened and closed.
In one aspect, the invention provides a control valve, which comprises a valve body, wherein a through hole penetrating through the valve body is formed in the valve body, the through hole comprises a first end hole and a second end hole which are oppositely arranged along the length direction of the through hole, a first blocking piece is arranged in the first end hole, and a second blocking piece is arranged in the second end hole;
a concave cavity is formed on the hole wall of the through hole between the first blocking piece and the second blocking piece, and an electromagnetic piece is arranged on the valve body at a position opposite to the concave cavity;
a plugging piece is arranged in the through hole between the first blocking piece and the second blocking piece, the electromagnetic piece is electrified to generate a magnetic field to attract at least part of the plugging piece to be arranged in the concave cavity, and the through hole is opened;
when the electromagnetic member is de-energized, the blocking member abuts the second blocking member under fluid pressure from the first end hole, and the through hole is closed; or, the blocking piece is abutted against the first blocking piece under the pressure of the fluid from the second end hole, and the through hole is closed.
Preferably, the first blocking member is a first blocking ring, the outer peripheral wall of the first blocking ring is fixed with the inner wall of the through hole in a sealing manner, the second blocking member is a second blocking ring, and the outer peripheral surface of the second blocking ring is fixed with the inner wall of the through hole in a sealing manner;
when the plugging piece abuts against the first retaining ring, the plugging piece can plug the inner hole of the first retaining ring; when the plugging piece abuts against the second retaining ring, the plugging piece can plug the inner hole of the second retaining ring.
Preferably, the wall surface of the inner hole of the first retaining ring extends towards the second retaining ring, and the extending end of the inner hole of the first retaining ring inclines towards the direction far away from the axis of the through hole;
when the plugging piece is abutted against the first blocking piece, at least part of the plugging piece is arranged in the inner hole of the first blocking ring, and when the plugging piece is abutted against the second blocking piece, at least part of the plugging piece is arranged in the inner hole of the second blocking ring.
Preferably, the first hole that keeps off the ring is kept away from the second keeps off the one end maximum width that the ring is D1, the second keeps off the hole of ring and keeps away from the first maximum width that keeps off the one end that keeps off the ring is D2, the shutoff piece is the spheroid, spheroidal diameter is D3, then, D1 < D3, D2 < D3.
Preferably, the inner hole of the first baffle ring is a first conical hole, the D1 is the diameter of the small end of the first conical hole, and the inner hole of the second baffle ring is a second conical hole; and D2 is the diameter of the small end of the second conical hole.
Preferably, one side of the inner wall surface of the concave cavity, which is close to the first end hole, inclines towards the direction close to the first end hole to form a first inclined surface;
one side of the inner wall surface of the concave cavity, which is close to the second end hole, inclines towards the direction close to the second end hole to form a second inclined surface.
Preferably, the first inclined surface of the concave cavity is connected with the hole wall of the first conical hole, and the second inclined surface of the concave cavity is connected with the hole wall of the second conical hole.
In another aspect, the invention also provides a refrigeration system comprising a control valve as described above.
Preferably, the refrigeration system further comprises an indoor unit and a compressor;
an upstream air inlet pipe is arranged between the control valve and the indoor unit, one end of the upstream air inlet pipe is connected with a refrigerant outlet of the indoor unit, and the other end of the upstream air inlet pipe is connected with a first end of the through hole in the control valve; a downstream air inlet pipe is arranged between the control valve and the compressor, one end of the downstream air inlet pipe is connected with the control valve, and the other end of the downstream air inlet pipe is connected with an inlet of the compressor;
an exhaust pipe is arranged between the indoor unit and the compressor, one end of the exhaust pipe is connected with a refrigerant inlet of the indoor unit, and the other end of the exhaust pipe is connected with an outlet of the compressor; and the exhaust pipe is also provided with an electronic expansion valve for controlling the exhaust pipe.
Preferably, the refrigeration system includes: a working state, a shutdown state and a maintenance state;
when the refrigerating system is in the working state, the blocking body is at least partially arranged in the concave cavity;
when the refrigerating system is in the shutdown state, the blocking body is abutted against the second blocking piece;
when the refrigeration system is in the maintenance state, the blocking body is abutted to the first blocking piece.
The invention controls the movement of the ball body through the electromagnetic part to further control the opening of the control valve, and controls the closing of the control valve by utilizing the upstream and downstream pressures of the control valve, so that the process can be finished without manual operation, the manpower is saved, and the abnormal opening or closing of the control valve caused by human factors is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic external view of a control valve according to an embodiment of the present invention;
FIG. 2 is a front cross-sectional view of a control valve according to an embodiment of the present invention;
FIG. 3 is a schematic view of a ball according to an embodiment of the present invention in a cavity;
FIG. 4 is a schematic view illustrating a ball abutting against a second retaining ring according to an embodiment of the present invention;
FIG. 5 is a schematic view of a ball abutting against a first stop ring according to an embodiment of the present invention;
fig. 6 is a schematic view of a refrigeration system according to an embodiment of the present invention.
Wherein: 1-a valve body; 2-a through hole; 3-a concave cavity; 4-an electromagnetic member; 5-plugging piece; 6-a first baffle ring; 7-a second retaining ring; 8-a first conical bore; 9-a second conical bore; 10-indoor unit; 11-a compressor; 12-an upstream intake pipe; 13-a downstream intake pipe; 14-an exhaust pipe; 15-electronic expansion valve.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions;
the invention relates to the field of refrigeration, in particular to a control valve and a refrigeration system, wherein the air conditioner is widely applied in life, the air conditioner needs to be maintained after being used for a long time, during maintenance, a refrigerant sometimes needs to be recovered to conveniently disassemble a connecting pipeline, a worker needs to manually close a control valve after recovering the refrigerant and judge whether the recovery is completed or not through manual observation and working experience, so that human factors have great influence on the working quality, and when the refrigerant is incompletely recovered and the pipeline is disassembled, the refrigerant can be leaked, the environment is polluted, and the health of people is damaged.
The present invention has been made in view of the above problems and provides a control valve and a refrigeration system,
as shown in fig. 1 to 6, in one aspect, the present invention provides a control valve, which includes a valve body 1, where the valve body 1 is formed with a through hole 2 penetrating through the valve body 1, the through hole 2 includes a first end hole 201 and a second end hole 202 oppositely arranged along a length direction of the through hole 2, a first blocking member is arranged in the first end hole 201, and a second blocking member is arranged in the second end hole 202; a concave cavity 3 is formed on the hole wall of the through hole 2 between the first blocking piece and the second blocking piece, and an electromagnetic piece 4 is arranged on the valve body 1 opposite to the concave cavity 3; a plugging piece 5 is arranged in the through hole 2 between the first blocking piece and the second blocking piece, the electromagnetic piece 4 is electrified to generate a magnetic field to attract the plugging piece 5 to be at least partially arranged in the concave cavity 3, and the through hole 2 is opened; when the electromagnetic element 4 is de-energized, the blocking element 5 is pressed against the second blocking element under the pressure of the fluid from the first end hole 201, and the through hole 2 is closed; or, the block piece 5 abuts against the first blocking piece under the pressure of the fluid from the second end hole 202, and the through hole 2 is closed; the movement of the plugging piece 5 is controlled through the electromagnetic piece 4, so that the opening of the control valve is controlled, the control valve is controlled to be closed by utilizing the pressure at the first end hole 201 or the second end hole 202, the process can be completed without manual operation, the manpower is saved, and the problem that the control valve is opened or closed abnormally due to human factors is avoided.
Preferably, the first blocking member is a first blocking ring 6, the outer peripheral wall of the first blocking ring 6 is fixed with the inner wall of the through hole 2 in a sealing manner, the second blocking member is a second blocking ring 7, and the outer peripheral surface of the second blocking ring 7 is fixed with the inner wall of the through hole 2 in a sealing manner; when the plugging piece 5 abuts against the first retaining ring 6, the plugging piece 5 can plug the inner hole of the first retaining ring 6; when the plugging piece 5 abuts against the second retaining ring 7, the plugging piece 5 can plug the inner hole of the second retaining ring 7; the plugging piece 5 is matched with the first retaining ring 6 and the second retaining ring 7, and the plugging piece 5 plugs different retaining rings in different fluid flow directions.
Preferably, the wall surface of the inner hole of the first retaining ring 6 extends towards the second retaining ring 7, and the extending end of the inner hole of the second retaining ring 7 inclines towards the direction far away from the axis of the through hole 2, and the wall surface of the inner hole of the first retaining ring 6 extends towards the first retaining ring 6, and the extending end of the inner hole of the second retaining ring inclines towards the direction far away from the axis of the through hole 2; when the plugging piece 5 abuts against the first blocking piece, at least part of the plugging piece 5 is arranged in the inner hole of the first blocking ring 6, when the plugging piece 5 abuts against the second blocking piece, at least part of the plugging piece 5 is arranged in the inner hole of the second blocking ring 7, and part of the plugging piece 5 enters the first blocking ring 6 or the second blocking ring 7, so that when the plugging piece 5 is plugged, the plugging piece 5 is fixed in the hole in the radial direction, and the plugging stability is improved.
Preferably, the maximum width of the end, away from the second retaining ring 7, of the inner hole of the first retaining ring 6 is D1, the maximum width of the end, away from the first retaining ring 6, of the inner hole of the second retaining ring 7 is D2, the blocking piece 5 is a sphere, the diameter of the sphere is D3, then D1 is less than D3, and D2 is less than D3; the inner hole of the first baffle ring 6 is a first conical hole 8, the D1 is the diameter of the small end of the first conical hole 8, and the inner hole of the second baffle ring 7 is a second conical hole 9; the D2 is the diameter of the small end of the second conical hole 9; the sphere is matched with the conical hole, the applicability is improved, and the surface of the sphere is abutted against the inner hole surface of the conical hole to complete sealing.
Preferably, a first inclined surface 301 is formed by inclining the inner wall surface of the concave cavity 3 close to the first end hole 201 toward the first end hole 201; one side of the inner wall surface of the cavity 3 close to the second end hole 202 is inclined towards the direction close to the second end hole 202 to form a second inclined surface 302; the ball moves from the cavity 3 to the first conical hole 8 along the first inclined plane 301 or to the second conical hole 9 along the second inclined plane 302, so that the ball can move rapidly, and the response sensitivity of the control valve is improved.
Preferably, the first inclined surface 301 of the cavity 3 is connected with the hole wall of the first conical hole 8, and the second inclined surface 302 of the cavity 3 is connected with the hole wall of the second conical hole 9; the path for the ball to move from the concave cavity 3 to the first conical hole 8 or the second conical hole 9 is short, and the reaction time for the ball to close the through hole 2 is shortened.
The ball body can be designed into an iron ball with a silica gel layer coated on the surface; the iron ball can cooperate with electromagnetism piece 4, is attracted by electromagnetism piece 4 and removes, and when the first circular cone hole of spheroid shutoff 8 or second circular cone hole 9, deformation takes place for the silica gel layer, has improved sealed effect.
In another aspect, the invention also provides a refrigeration system comprising a control valve as described above.
Preferably, the refrigeration system further comprises an indoor unit 10 and a compressor 11; an upstream air inlet pipe 12 is arranged between the control valve and the indoor unit 10, one end of the upstream air inlet pipe 12 is connected with a refrigerant outlet of the indoor unit 10, and the other end of the upstream air inlet pipe 12 is connected with a first end of the through hole 2 on the control valve; a downstream air inlet pipe 13 is arranged between the control valve and the compressor 11, one end of the downstream air inlet pipe 13 is connected with the control valve, and the other end of the downstream air inlet pipe 13 is connected with an inlet of the compressor 11; an exhaust pipe 14 is also arranged between the indoor unit 10 and the compressor 11, one end of the exhaust pipe 14 is connected with a refrigerant inlet of the indoor unit 10, and the other end is connected with an outlet of the compressor 11; the exhaust pipe 14 is also provided with an electronic expansion valve 15 that controls the exhaust pipe 14.
The refrigeration system comprises a working state, a shutdown state and a maintenance state;
the following describes the operation process of the refrigeration system by taking three operation states of the refrigeration system as examples, and the refrigeration system is charged with a refrigerant before operation:
when the refrigeration system is in a working state, the compressor 11 works, and the electronic expansion valve 15 is opened; the electromagnetic element 4 is electrified to generate a magnetic field and attract the ball to move to the concave cavity 3, the through hole 2 is opened, a refrigerant flows out of the indoor unit 10 and sequentially flows through the upstream air inlet pipe 12, the control valve and the downstream air inlet pipe 13 to enter the compressor 11, the refrigerant is compressed in the compressor 11 to release heat and then is discharged to the indoor unit 10 through the exhaust pipe 14 and the electronic expansion valve 15, the refrigerant expands in the indoor unit 10 to absorb heat, the refrigerant flows out of the indoor unit 10 after expanding and absorbing heat and sequentially flows through the upstream air inlet pipe 12, the control valve and the downstream air inlet pipe 13 to enter the compressor 11, and the circulating refrigeration is completed.
When the refrigeration system is in a shutdown state, the compressor 11 stops working, the electronic expansion valve 15 is closed, the electromagnetic element 4 loses power and loses the magnetic field and no longer generates attraction force on the iron ball, the refrigerant in the upstream air inlet pipe 12 pushes the iron ball to enable the ball to move along the second inclined plane 302 and abut against the second conical hole 9, the silica gel layer on the surface of the ball abuts against the second conical hole 9, the silica gel layer abuts against the second conical hole 9 to enable the control valve to be closed, and the refrigerant stops flowing.
When the refrigeration system is in a maintenance state, the electronic expansion valve 15 is closed, and the electromagnetic element 4 is electrified within a first preset time; during a first preset time, the compressor 11 is operated to suck the refrigerant in the exhaust pipe 14 between the electronic expansion valve 15 and the indoor unit 10, the refrigerant in the indoor unit 10 and the refrigerant in the upstream air inlet pipe 12 into the compressor 11; when the power-on duration of the electromagnetic element 4 reaches a first preset duration, the electromagnetic element 4 is powered off, then the compressor 11 stops working, a refrigerant in the compressor 11 pushes the ball body to move along the first inclined surface 301 and abut against the first conical hole 8, the silica gel layer abuts against the inner wall of the first conical hole 8, and the control valve is closed; at the moment, most of the refrigerant is stored in the compressor 11, and the refrigerant can be effectively prevented from leaking by disassembling the pipeline and the like for maintenance; the process and the end of the refrigerant suction into the compressor 11 are irrelevant to human factors, so that the stability and the safety of the refrigerant recovered to the compressor 11 are improved; the first preset time is determined after the installation and debugging of the refrigeration system are completed, so as to ensure that the refrigerant is recovered into the compressor 11 to the maximum extent.
In addition, when the refrigeration system is in a predetermined abnormal condition, such as a fire disaster in a room, the refrigeration system can also avoid refrigerant leakage and reduce the influence on the environment, and the implementation mode is as follows:
when the temperature sensor on the indoor unit 10 detects that the indoor temperature is abnormal, the electronic expansion valve 15 is closed, and the electromagnetic element 4 is kept electrified within a second preset time period; in a second preset time period, the compressor 11 operates to suck the refrigerant in the exhaust pipe 14 between the electronic expansion valve 15 and the indoor unit 10, the refrigerant in the indoor unit 10, and the refrigerant in the upstream intake pipe 12 into the compressor 11; when the power-on duration of the electromagnetic part 4 reaches a second preset duration, the electromagnetic part 4 is powered off, then the compressor 11 stops working, the refrigerant in the compressor 11 pushes the iron ball to move, the silica gel layer is abutted against the first conical hole 8, and the control valve is closed; most of the refrigerant of the refrigeration system is stored in the compressor 11, the indoor part and the pipeline part are damaged, the refrigerant leakage is less, and the influence on the environment is less; the second preset time period can be adjusted according to the set environment, if the using environment has more combustible substances, the danger is larger, the second preset time period is shorter, and if the using environment has less combustible substances, the danger is lower, and the second preset time period is longer. The invention has the following remarkable advantages:
1. the invention controls the movement of the ball body through the electromagnetic part to further control the opening of the control valve, and controls the closing of the control valve by utilizing the upstream and downstream pressures of the control valve, so that the process can be finished without manual operation, the manpower is saved, and the abnormal opening or closing of the control valve caused by human factors is avoided.
2. The maintenance state of the refrigeration system can be suitable for emergency situations, when dangers such as fire disasters occur indoors, refrigerant leakage can be avoided to the maximum extent under the combined action of the control valve and the electronic expansion valve, and the environmental protection is facilitated.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise construction, arrangements, or implementations described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. A control valve is characterized by comprising a valve body, wherein a through hole penetrating through the valve body is formed in the valve body, the through hole comprises a first end hole and a second end hole which are oppositely arranged along the length direction of the through hole, a first blocking piece is arranged in the first end hole, and a second blocking piece is arranged in the second end hole;
a concave cavity is formed on the hole wall of the through hole between the first blocking piece and the second blocking piece, and an electromagnetic piece is arranged on the valve body at a position opposite to the concave cavity;
a plugging piece is arranged in the through hole between the first blocking piece and the second blocking piece, the electromagnetic piece is electrified to generate a magnetic field to attract at least part of the plugging piece to be arranged in the concave cavity, and the through hole is opened;
when the electromagnetic member is de-energized, the blocking member abuts the second blocking member under fluid pressure from the first end hole, and the through hole is closed; or, the blocking piece abuts against the first blocking piece under fluid pressure from the second end hole, and the through hole is closed.
2. The control valve according to claim 1, wherein the first blocking member is a first blocking ring, an outer peripheral wall of the first blocking ring is fixed to an inner wall of the through hole in a sealing manner, the second blocking member is a second blocking ring, and an outer peripheral surface of the second blocking ring is fixed to the inner wall of the through hole in a sealing manner;
when the plugging piece abuts against the first retaining ring, the plugging piece can plug the inner hole of the first retaining ring; when the plugging piece abuts against the second retaining ring, the plugging piece can plug the inner hole of the second retaining ring.
3. A control valve in accordance with claim 2 wherein the wall of the bore of the first retainer extends toward the second retainer and the extending end of the wall is inclined away from the axis of the through-bore, and the wall of the bore of the second retainer extends toward the first retainer and the extending end of the wall is inclined away from the axis of the through-bore;
when the plugging piece is abutted against the first blocking piece, at least part of the plugging piece is arranged in the inner hole of the first blocking ring, and when the plugging piece is abutted against the second blocking piece, at least part of the plugging piece is arranged in the inner hole of the second blocking ring.
4. The control valve according to claim 3, wherein the maximum width of the end of the inner hole of the first retaining ring away from the second retaining ring is D1, the maximum width of the end of the inner hole of the second retaining ring away from the first retaining ring is D2, the blocking member is a sphere, the diameter of the sphere is D3, then D1 < D3, and D2 < D3.
5. The control valve of claim 4, wherein the inner bore of the first retainer ring is a first conical bore, the D1 is the small end diameter of the first conical bore, and the inner bore of the second retainer ring is a second conical bore; and D2 is the diameter of the small end of the second conical hole.
6. The control valve as claimed in claim 5, wherein a side of the inner wall surface of the cavity adjacent to the first end hole is inclined in a direction adjacent to the first end hole to form a first inclined surface;
one side of the inner wall surface of the concave cavity, which is close to the second end hole, inclines towards the direction close to the second end hole to form a second inclined surface.
7. A control valve according to claim 6, wherein the first inclined surface of the cavity meets the wall of the first conical bore and the second inclined surface of the cavity meets the wall of the second conical bore.
8. A refrigeration system, comprising: a control valve as claimed in any one of claims 1 to 7.
9. A refrigeration system as recited in claim 8 further comprising an indoor unit, a compressor;
an upstream air inlet pipe is arranged between the control valve and the indoor unit, one end of the upstream air inlet pipe is connected with a refrigerant outlet of the indoor unit, and the other end of the upstream air inlet pipe is connected with a first end of the through hole in the control valve; a downstream air inlet pipe is arranged between the control valve and the compressor, one end of the downstream air inlet pipe is connected with the control valve, and the other end of the downstream air inlet pipe is connected with an inlet of the compressor;
an exhaust pipe is arranged between the indoor unit and the compressor, one end of the exhaust pipe is connected with a refrigerant inlet of the indoor unit, and the other end of the exhaust pipe is connected with an outlet of the compressor; and the exhaust pipe is also provided with an electronic expansion valve for controlling the exhaust pipe.
10. A refrigeration system as recited in claim 9 wherein said refrigeration system comprises: a working state, a shutdown state and a maintenance state;
when the refrigerating system is in the working state, the blocking body is at least partially arranged in the concave cavity;
when the refrigerating system is in the shutdown state, the blocking body is abutted against the second blocking piece;
when the refrigeration system is in the maintenance state, the blocking body is abutted to the first blocking piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210744642.7A CN115143316A (en) | 2022-06-27 | 2022-06-27 | Control valve and refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210744642.7A CN115143316A (en) | 2022-06-27 | 2022-06-27 | Control valve and refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115143316A true CN115143316A (en) | 2022-10-04 |
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ID=83409843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210744642.7A Pending CN115143316A (en) | 2022-06-27 | 2022-06-27 | Control valve and refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115143316A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4670939A (en) * | 1986-03-25 | 1987-06-09 | Fisher Samuel H | Device for holding a door open with permanent magnet actuated ball valve affecting hydraulic cylinder |
| US6398183B1 (en) * | 1999-07-09 | 2002-06-04 | Torrent Trading Ltd. | Automatic shut-off device for a valve for compressed or liquefied gases |
| CN102027275A (en) * | 2008-03-25 | 2011-04-20 | 弗劳恩霍弗应用技术研究院 | Solenoid valve unit |
| US20110284778A1 (en) * | 2009-01-31 | 2011-11-24 | Deutsches Zentrum Fur Luft-Und Raumfahrt E.V. | Magnetic valve |
| CN104748295A (en) * | 2014-01-01 | 2015-07-01 | 广东美的制冷设备有限公司 | Air conditioner and recycling method for air conditioner refrigerant |
| US20190170268A1 (en) * | 2014-01-09 | 2019-06-06 | Hans-Jörgen Beyer | Valve comprising a variable flow opening |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4670939A (en) * | 1986-03-25 | 1987-06-09 | Fisher Samuel H | Device for holding a door open with permanent magnet actuated ball valve affecting hydraulic cylinder |
| US6398183B1 (en) * | 1999-07-09 | 2002-06-04 | Torrent Trading Ltd. | Automatic shut-off device for a valve for compressed or liquefied gases |
| CN102027275A (en) * | 2008-03-25 | 2011-04-20 | 弗劳恩霍弗应用技术研究院 | Solenoid valve unit |
| US20110284778A1 (en) * | 2009-01-31 | 2011-11-24 | Deutsches Zentrum Fur Luft-Und Raumfahrt E.V. | Magnetic valve |
| CN104748295A (en) * | 2014-01-01 | 2015-07-01 | 广东美的制冷设备有限公司 | Air conditioner and recycling method for air conditioner refrigerant |
| US20190170268A1 (en) * | 2014-01-09 | 2019-06-06 | Hans-Jörgen Beyer | Valve comprising a variable flow opening |
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