CN212718267U - Communicating valve structure for pressure switch, pressure switch assembly and air conditioner - Google Patents
Communicating valve structure for pressure switch, pressure switch assembly and air conditioner Download PDFInfo
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- CN212718267U CN212718267U CN202021798581.5U CN202021798581U CN212718267U CN 212718267 U CN212718267 U CN 212718267U CN 202021798581 U CN202021798581 U CN 202021798581U CN 212718267 U CN212718267 U CN 212718267U
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Abstract
The utility model provides a intercommunication valve structure, pressure switch subassembly and air conditioner for pressure switch relates to pressure switch technical field, has solved among the prior art and has had the relatively great technical problem of refrigerant emission when changing to the air pressure regulating power switch subassembly. The communicating valve structure for the pressure switch is connected with the pressure switch and the equipment pipeline, a pressure switch removing part is formed between the communicating valve structure and the pressure switch, and when the communicating valve structure cuts off the pressure switch and the equipment pipeline, the refrigerant on the side of the pressure switch of the communicating valve structure can be discharged by adjusting the communicating valve structure. The utility model is used for be convenient for realize the change of air conditioner fluorine system medium pressure switch.
Description
Technical Field
The utility model belongs to the technical field of the pressure switch technique and specifically relates to a pressure switch is with intercommunication valve structure, including the pressure switch subassembly and an air conditioner of this intercommunication valve structure.
Background
At present, a general air conditioner fluorine system pressure switch adopts a mechanical type, and can be seen in figure 1, the pressure switch is connected with an L-shaped copper pipe to form an assembly, and then the L-shaped copper pipe is connected with a large pipe in a brazing mode. When the pressure switch is in failure and needs to be replaced, the refrigerant in a fluorine system needs to be removed, the refrigerant is welded from the joint of the L-shaped copper pipe and the large pipe, and a new pressure switch assembly is welded again; after the replacement is finished, the fluorine system needs to be vacuumized again, filled with refrigerant and debugged and started. For systems with large cooling capacity, the maintenance cost is high, the maintenance period is long, and the air pollution is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a intercommunication valve structure, pressure switch subassembly and air conditioner for pressure switch has solved and has had the relatively great technical problem of refrigerant emission when changing to air pressure regulating switch subassembly among the prior art. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a pair of intercommunication valve structure for pressure switch, intercommunication valve structural connection pressure switch and equipment pipeline, wherein, the intercommunication valve structure with be formed with pressure switch between the pressure switch and demolish the position, and work as the intercommunication valve structure cuts pressure switch with during the equipment pipeline, adjust the intercommunication valve structure can with the refrigerant discharge of intercommunication valve structure pressure switch side.
Further, the communication valve structure comprises an exhaust valve, and when the communication valve structure is in a blocking state, the refrigerant on the pressure switch side of the communication valve structure can be discharged through the exhaust valve.
Further, the communicating valve structure further comprises a main body valve, the main body valve is provided with the exhaust valve, the main body valve is connected with the pressure switch and the equipment pipeline, and the main body valve is used for cutting off the pressure switch and the equipment pipeline.
Further, the main body valve is a two-way valve, and the exhaust valve is located on one side, close to the pressure switch, of a valve core of the main body valve.
Furthermore, the communicating valve structure is respectively and fixedly connected with the pressure switch and the equipment pipeline through connecting pipes, and one end of the connecting pipe which connects the communicating valve structure with the pressure switch and is connected with the communicating valve structure forms the pressure switch dismantling part.
Further, the communicating valve structure comprises an inlet end and an outlet end, wherein the inlet end and the outlet end are both in flaring shapes, and the connecting pipes are inserted into the inlet end and the outlet end.
Further, the communicating valve structure is respectively connected with the pressure switch and the equipment pipeline in a welding mode through connecting pipes.
Furthermore, a connecting pipe between the communicating valve structure and the pressure switch is a straight pipe; and a connecting pipe between the communicating valve structure and the equipment pipeline is an L-shaped pipe.
A pressure switch comprises a pressure switch and the communication valve structure for the pressure switch.
An air conditioner comprises the communicating valve structure for the pressure switch.
The utility model provides a communicating valve structure, connect pressure switch and equipment pipeline, and be formed with pressure switch between communicating valve structure and the pressure switch and demolish the position, when needs change pressure switch, utilize communicating valve structure to block pressure switch and equipment pipeline, make pressure switch and equipment pipeline not communicate, then the refrigerant of operation communicating valve structure with communicating valve structure pressure switch side is discharged, can dismantle down pressure switch after having discharged, change with the realization to pressure switch, and needn't discharge whole fluorine system refrigerant earlier and follow-up evacuation again, the filling refrigerant, operations such as debugging, in order to reduce the discharge refrigerant, reduce the pollution to the environment, simplify the maintenance process, shorten maintenance cycle, reduce cost of maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art pressure switch for a fluorine regulating system;
fig. 2 is a schematic structural diagram of a communication valve structure for a pressure switch according to an embodiment of the present invention.
FIG. 1-pressure switch; 11-a connecting terminal; 2-a communication valve structure; 21-an exhaust valve; 22-a body valve; 3, straight pipe; 4-L shaped tube.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-2, the utility model provides a communicating valve structure for pressure switch, communicating valve structure 2 connect pressure switch 1 and equipment pipeline, wherein, form pressure switch between communicating valve structure 2 and the pressure switch 1 and demolish the position, and when communicating valve structure 2 blocks pressure switch 1 and equipment pipeline, adjust communicating valve structure 2 and can discharge the refrigerant that communicating valve structure 2 pressure switch 1 inclines. Referring to fig. 1, it is shown that a pressure switch is connected with an L-shaped copper pipe to form a pressure switch assembly, and the L-shaped copper pipe is connected with an equipment pipeline by brazing; when the pressure switch is in fault and needs to be replaced, the refrigerant in the fluorine system needs to be removed, the L-shaped copper pipe is welded from the pipeline connection part of the equipment, then a new pressure switch assembly is welded again, and the fluorine system needs to be vacuumized again, filled with the refrigerant and debugged and started after the replacement is finished, so that the problems of high maintenance cost, long maintenance period and relatively large refrigerant discharge amount exist in the operation; when the communicating valve structure provided by the utility model is adopted to connect the pressure switch 1 and the equipment pipeline, a pressure switch removing part is formed between the communicating valve structure 2 and the pressure switch 1 (the pressure switch 1 is replaced through the part), when the pressure switch 1 needs to be replaced, the communicating valve structure 2 is utilized to cut off the pressure switch 1 and the equipment pipeline, so that the pressure switch 1 is not communicated with the equipment pipeline, then the communicating valve structure 2 is operated to discharge the refrigerant at the pressure switch 1 side of the communicating valve structure 2 (if the refrigerant at the part is discharged, the danger of explosion exists when the pressure switch 1 is welded down), the refrigerant discharge amount is small, the pressure switch 1 can be disassembled after the discharge is finished, so as to realize the replacement of the pressure switch 1, and the operations of discharging the whole fluorine system refrigerant firstly and then vacuumizing again, filling the refrigerant, debugging and the like are not needed, so as to reduce the discharge of the refrigerant, the pollution to the environment is reduced, the maintenance process is simplified, the maintenance period is shortened, and the maintenance cost is reduced.
The high-pressure switch is used for detecting the pressure of a refrigerant in a fluorine system and is divided into a high-pressure switch and a low-pressure switch, two elastic membranes in the pressure switch are in a conducting state under the normal condition of the high-pressure switch, and when the pressure of the refrigerant is higher than a rated pressure value, the membranes are in a disconnecting state; two elastic membranes in the pressure switch are in a conducting state under the normal condition of the low-pressure switch, and when the pressure of a refrigerant is lower than a rated pressure value, the membranes are in a disconnecting state. To the utility model provides a pressure switch 1 who is connected with the intercommunication valve structure can be high tension switchgear, also can be low tension switchgear, and pressure switch 1's binding post 11 connecting lead transmits pressure switch's break-make signal for the control panel, and the control panel judges the back control unit protection and shuts down.
As the embodiment of the utility model provides an optional embodiment, intercommunication valve structure 2 includes discharge valve 21, and when intercommunication valve structure 2 was in the truncation state, the refrigerant of intercommunication valve structure 2 pressure switch 1 side can be discharged through discharge valve 21. That is, by adjusting the discharge valve 21, the refrigerant on the pressure switch 1 side of the communication valve structure 2 can be discharged, and the adjustment method is simple.
As the optional implementation mode of the embodiment of the present invention, referring to fig. 2, the communication valve structure 2 further includes a main body valve 22, the main body valve 22 is provided with an exhaust valve 21, the main body valve 22 connects the pressure switch 1 and the equipment pipeline, and the main body valve 22 is used for cutting off the pressure switch 1 and the equipment pipeline. The main body valve 22 is a two-way valve, and the exhaust valve 21 is located on one side of the valve core of the main body valve 22 close to the pressure switch 1. When the pressure switch 1 needs to be replaced, the main body valve 22 is used for cutting off the pressure switch 1 and the equipment pipeline, so that the pressure switch 1 is not communicated with the equipment pipeline, then the exhaust valve 21 is operated to discharge the refrigerant on the side of the main body valve 22 and the pressure switch 1, the discharge amount of the refrigerant is small, and the pressure switch 1 can be detached after the discharge is finished so as to replace the pressure switch 1.
As the embodiment of the utility model provides an optional embodiment, intercommunication valve structure 2 forms pressure switch through connecting pipe and pressure switch 1 and equipment pipeline fixed connection respectively, connects its one end of being connected with intercommunication valve structure 2 of intercommunication valve structure 2 and pressure switch 1's connecting pipe and demolishs the position. Referring to fig. 2, a connecting pipe between the communicating valve structure 2 and the pressure switch 1 is a straight pipe 3; the connecting pipe between the communicating valve structure 2 and the equipment pipeline is an L-shaped pipe 4, the L-shaped pipe 4 is welded on the equipment pipeline, and a pressure switch dismounting part is formed at the connecting part between the straight pipe 3 and the communicating valve structure 2.
As the embodiment of the utility model provides an optional implementation mode, intercommunication valve structure 2 includes entrance point and exit end, and entrance point and exit end all are flaring and entrance point and exit end all insert the connecting pipe. The inlet end is connected with the L-shaped pipe 4, the outlet end is connected with the straight pipe 3, and two ends of the communication valve structure 2 (the main body valve 22) are flared so as to be convenient for realizing the welding connection of the L-shaped pipe 4 and the straight pipe 3 with the main body valve 22, wherein the welding mode is preferably brazing welding.
When the pressure switch 1 fails, the main valve 22 is closed to block the refrigerant, and the exhaust valve 21 on the main valve 22 is opened to exhaust the refrigerant inside the straight pipe 3. The straight pipe 3 is welded from the joint of the main body valve 22 and the straight pipe 3, the pressure switch 1 is replaced (at this time, the straight pipe 3 is connected to the pressure switch 1 in advance), and the new straight pipe 3 on the pressure switch 1 is welded to the main body valve 22 again. The wiring terminal of the pressure switch 1 is inserted with a lead, then the main body valve 22 is opened, the exhaust valve 21 is closed, and the unit is recovered to be normal.
Example 1:
a communicating valve structure for a pressure switch comprises an exhaust valve 21 and a main body valve 22, wherein the exhaust valve 21 is arranged on the main body valve 22, the main body valve 22 is connected with the pressure switch 1 and an equipment pipeline, the main body valve 22 is used for cutting off the pressure switch 1 and the equipment pipeline, and when the main body valve 22 is in a cutting-off state, the exhaust valve 21 is adjusted to enable a refrigerant on the pressure switch 1 side of the main body valve 22 to be discharged through the exhaust valve 21;
Example 2:
a pressure switch assembly comprising a pressure switch 1 and the communication valve structure for pressure switch described in embodiment 1.
Example 3:
an air conditioner including the communication valve structure for pressure switch described in embodiment 1.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A communicating valve structure for a pressure switch, characterized in that the communicating valve structure (2) connects the pressure switch (1) with an equipment pipeline, wherein,
a pressure switch dismantling part is formed between the communication valve structure (2) and the pressure switch (1), and when the communication valve structure (2) cuts off the pressure switch (1) and the equipment pipeline, the communication valve structure (2) is adjusted to discharge the refrigerant on the pressure switch (1) side of the communication valve structure (2).
2. A communication valve structure for pressure switch according to claim 1, wherein the communication valve structure (2) includes an exhaust valve (21), and when the communication valve structure (2) is in a blocked state, the refrigerant on the pressure switch (1) side of the communication valve structure (2) can be discharged through the exhaust valve (21).
3. The communication valve structure for pressure switch according to claim 2, wherein the communication valve structure (2) further comprises a main body valve (22), the exhaust valve (21) is disposed on the main body valve (22), the main body valve (22) connects the pressure switch (1) and the equipment pipeline, and the main body valve (22) is used for cutting off the pressure switch (1) and the equipment pipeline.
4. The communication valve structure for pressure switch according to claim 3, wherein the main body valve (22) is a two-way valve, and the exhaust valve (21) is located on a side of a valve core of the main body valve (22) close to the pressure switch (1).
5. A communication valve structure for pressure switch according to any of claims 1-4, characterized in that the communication valve structure (2) is fixedly connected with the pressure switch (1) and the equipment pipeline by connecting pipes, respectively, and one end of the connecting pipe connecting the communication valve structure (2) with the pressure switch (1) and the communication valve structure (2) forms the pressure switch removal position.
6. The communication valve structure for pressure switches according to claim 5, characterized in that the communication valve structure (2) comprises an inlet end and an outlet end, both of which are flared and into which the connecting pipe is inserted.
7. The communication valve structure for pressure switch according to claim 5, wherein the communication valve structure (2) is welded to the pressure switch (1) and the equipment pipe through the connection pipe, respectively.
8. A communication valve structure for pressure switch according to claim 5, characterized in that the connection pipe between the communication valve structure (2) and the pressure switch (1) is a straight pipe (3); and a connecting pipe between the communicating valve structure (2) and the equipment pipeline is an L-shaped pipe (4).
9. A pressure switch assembly, comprising a pressure switch (1) and a communication valve structure for a pressure switch according to any one of claims 1 to 8.
10. An air conditioner characterized by comprising the communication valve structure for pressure switch according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021798581.5U CN212718267U (en) | 2020-08-25 | 2020-08-25 | Communicating valve structure for pressure switch, pressure switch assembly and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021798581.5U CN212718267U (en) | 2020-08-25 | 2020-08-25 | Communicating valve structure for pressure switch, pressure switch assembly and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212718267U true CN212718267U (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021798581.5U Active CN212718267U (en) | 2020-08-25 | 2020-08-25 | Communicating valve structure for pressure switch, pressure switch assembly and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212718267U (en) |
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2020
- 2020-08-25 CN CN202021798581.5U patent/CN212718267U/en active Active
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