CN221121908U - Pipeline structure and air conditioning equipment - Google Patents

Abstract

The utility model discloses a pipeline structure and air conditioning equipment. The pipeline structure comprises an electronic valve and a pipeline assembly. The electronic valve includes an inlet and an outlet. The pipeline assembly is provided with a first conveying port, a second conveying port, a third conveying port and a fourth conveying port. The inlet is communicated with the third conveying port. The outlet is communicated with the fourth conveying port. At least one-way valve is arranged on the pipeline between the two conveying ports. The flow direction of all the check valves is uniform. In the pipeline structure, the electronic valve is connected with the pipeline assembly, the inlet is communicated with the third conveying port, the outlet is communicated with the fourth conveying port, and the medium flowing into the pipeline from the first conveying port or the second conveying port flows into the inlet through the third conveying port and then flows out of the outlet to the fourth conveying port due to the circulation limitation of the one-way valve, so that the control is convenient, the reverse impact of the medium in the pipeline on the electronic valve is avoided, the service life of the electronic valve is prolonged, and the reliability of the pipeline structure is improved.

Description

Pipeline structure and air conditioning equipment

Technical Field

The utility model relates to the technical field of air conditioning equipment, in particular to a pipeline structure and air conditioning equipment.

Background

At present, two electronic valves are installed in parallel in most air conditioning system pipelines, the electronic valves installed in the forward direction are controlled to be opened (or the opening degree is adjusted) when the refrigerant flows in the forward direction, the electronic valves installed in the reverse direction are controlled to be closed, and the electronic valves installed in the forward direction are controlled to be closed (or the opening degree is adjusted) when the refrigerant flows in the reverse direction, so that the refrigerant is ensured to flow in the forward direction all the time in the electronic valves. However, the control of the switch of the two electronic valves needs linkage control, the control flow and logic are complex, delay and time delay exist in the switch and opening adjustment of each electronic valve, so that the refrigerant reversely impacts the electronic valve, the service life of the electronic valve is influenced, and the reliability of the system is reduced.

Disclosure of utility model

The embodiment of the utility model provides a pipeline structure and air conditioning equipment to solve at least one technical problem.

A pipeline structure of an embodiment of the present utility model includes:

An electronic valve comprising an inlet and an outlet;

The pipeline assembly is provided with a first conveying port, a second conveying port, a third conveying port and a fourth conveying port, the inlet is communicated with the third conveying port, the outlet is communicated with the fourth conveying port, at least one check valve is arranged on a pipeline between the two conveying ports, and the circulation directions of all the check valves are consistent.

In the pipeline structure, the electronic valve is connected with the pipeline assembly, the inlet is communicated with the third conveying port, the outlet is communicated with the fourth conveying port, and the medium flowing into the pipeline from the first conveying port or the second conveying port flows into the inlet through the third conveying port and then flows out of the outlet to the fourth conveying port due to the circulation limitation of the one-way valve, so that the control is convenient, the reverse impact of the medium in the pipeline on the electronic valve is avoided, the service life of the electronic valve is prolonged, and the reliability of the pipeline structure is improved.

In some embodiments, the first delivery port is a delivery inlet, the second delivery port is a delivery outlet, the conduit assembly includes a first one-way valve, a second one-way valve, a third one-way valve, and a fourth one-way valve, the conduit structure is configured such that media entering from the delivery inlet flows through the first one-way valve and the fourth one-way valve before flowing out of the delivery outlet, and the media does not flow through the second one-way valve and the third one-way valve.

In some embodiments, the second delivery port is a delivery inlet, the first delivery port is a delivery outlet, the conduit assembly includes a first one-way valve, a second one-way valve, a third one-way valve, and a fourth one-way valve, the conduit structure is configured such that media entering from the delivery inlet flows through the second one-way valve and the third one-way valve before flowing out of the delivery outlet, and the media does not flow through the first one-way valve and the fourth one-way valve.

In some embodiments, the tubing assembly includes a first delivery tube connected to the first delivery port and a second delivery tube connected to the second delivery port.

In some embodiments, the pipeline assembly comprises a first tee provided with a first port, a second port and a third port, the first check valve is communicated with the first port, the second check valve is communicated with the second port, and the third port is communicated with the inlet.

In some embodiments, the pipeline assembly comprises a second tee provided with a fourth port, a fifth port and a sixth port, the fourth port is communicated with the third one-way valve, the fifth port is communicated with the fourth one-way valve, and the sixth port is communicated with the outlet.

In certain embodiments, the pipeline assembly comprises a third tee provided with a seventh port, an eighth port and a ninth port, the third check valve is communicated with the seventh port, the eighth port is communicated with the first check valve, and the first conveying pipe is communicated with the ninth port.

In some embodiments, the pipeline assembly comprises a fourth tee provided with a tenth port, an eleventh port and a twelfth port, the fourth one-way valve is communicated with the tenth port, the eleventh port is communicated with the second one-way valve, and the second conveying pipe is communicated with the twelfth port.

In certain embodiments, the third one-way valve comprises a first port and a second port;

In the case where the first delivery port is the delivery inlet and the second delivery port is the delivery outlet, the medium pressure of the second port is greater than the medium pressure of the first port.

In certain embodiments, the fourth one-way valve comprises a third port and a fourth port;

In the case where the second delivery port is the delivery inlet and the first delivery port is the delivery outlet, the medium pressure of the fourth port is greater than the medium pressure of the third port.

An air conditioning apparatus according to an embodiment of the present utility model includes the pipe structure according to any one of the above embodiments.

In the air conditioning equipment, the electronic valve is connected with the pipeline assembly, the inlet is communicated with the third conveying port, the outlet is communicated with the fourth conveying port, and the medium flowing into the pipeline from the first conveying port or the second conveying port flows into the inlet through the third conveying port and then flows out of the outlet to the fourth conveying port by virtue of the circulation limitation of the one-way valve, so that the control is convenient, the reverse impact of the medium in the pipeline on the electronic valve is avoided, the service life of the electronic valve is prolonged, and the reliability of the pipeline structure is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic view of a piping structure according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the flow of media within a piping structure according to an embodiment of the present utility model.

Reference numerals illustrate:

100. A pipeline structure; 10. an electronic valve; 12. an inlet; 14. an outlet; 16. a pipeline assembly; 18. a first delivery port; 20. a second delivery port; 22. a third delivery port; 24. a fourth delivery port; 26. a one-way valve; 28. a first one-way valve; 30. a second one-way valve; 32. a third one-way valve; 34. a first port; 36. a second port; 38. a fourth one-way valve; 40. a third port; 42. a fourth port; 44. a first delivery tube; 46. a second delivery tube; 48. a first tee; 50. a first port; 52. a second port; 54. a third port; 56. a second tee; 58. a fourth port; 60. a fifth port; 62. a sixth port; 64. a third tee; 66. a seventh through port; 68. an eighth port; 70. a ninth port; 72. a fourth tee; 74. a tenth port; 76. an eleventh port; 78. a twelfth port.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the embodiments of the present utility model and are not to be construed as limiting the embodiments of the present utility model.

In an embodiment of the utility model, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different structures of embodiments of the utility model. In order to simplify the disclosure of embodiments of the present utility model, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Embodiments of the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and do not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, embodiments of the present utility model provide examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1 and 2, a piping structure 100 according to an embodiment of the present utility model includes an electronic valve 10 and a piping assembly 16. The electronic valve 10 includes an inlet 12 and an outlet 14. The conduit assembly 16 is provided with a first delivery port 18, a second delivery port 20, a third delivery port 22, and a fourth delivery port 24. The inlet 12 communicates with the third delivery port 22. The outlet 14 communicates with a fourth delivery port 24. The line between the two delivery openings is provided with at least one non-return valve 26. The flow direction of all the check valves 26 is uniform.

In the above-mentioned pipeline structure 100, through setting up an electronic valve 10 and being connected with pipeline assembly 16, import 12 intercommunication third delivery port 22, export 14 intercommunication fourth delivery port 24, the circulation restriction of rethread check valve 26 ensures that the medium that flows into the pipeline from first delivery port 18 or second delivery port 20 all flows into import 12 through third delivery port 22, then flow out to fourth delivery port 24 from export 14 to the convenient control avoids the medium in the pipeline to strike electronic valve 10 in a reverse direction, is favorable to prolonging the life of electronic valve 10, improves pipeline structure 100's reliability.

Specifically, in the embodiment shown in fig. 1, the electronic valve 10 comprises an electronic expansion valve. The electronic valve 10 may be cylindrical. The side wall of the electronic valve 10 may be provided with an inlet 12. The top of the electronic valve 10 may be provided with an outlet 14. The conduit assembly 16 has a first delivery port 18, a second delivery port 20, a third delivery port 22, and a fourth delivery port 24 disposed therein. The first delivery port 18 and the second delivery port 20 may be disposed opposite each other. The third delivery port 22 and the fourth delivery port 24 may be disposed opposite. The first delivery port 18, the second delivery port 20, the third delivery port 22, and the fourth delivery port 24 are communicable with each other. Four check valves 26 may be provided in the conduit assembly 16. A one-way valve 26 may be provided between the first delivery port 18 and the third delivery port 22. A one-way valve 26 may be provided between the second delivery port 20 and the third delivery port 22. A one-way valve 26 may be provided between the first delivery port 18 and the fourth delivery port 24. A one-way valve 26 may be provided between the second delivery port 20 and the fourth delivery port 24. The flow direction of the check valve 26 may be denoted by V. In fig. 1, the flow direction of the four check valves 26 is the V direction. In one embodiment, by providing an electronic valve 10 connected to the pipeline assembly 16, the inlet 12 is communicated with the third delivery port 22, the outlet 14 is communicated with the fourth delivery port 24, and the medium flowing into the pipeline from the first delivery port 18 or the second delivery port 20 flows into the inlet 12 through the third delivery port 22 and then flows out of the outlet 14 to the fourth delivery port 24 by the flow restriction of the one-way valve 26, so that the control is convenient, the reverse impact of the medium in the pipeline on the electronic valve 10 is avoided, the service life of the electronic valve 10 is prolonged, and the reliability of the pipeline structure 100 is improved.

The electronic valve 10 requires a flow direction of a medium such as a refrigerant flowing through the electronic valve 10. When a medium such as a refrigerant reversely enters the electronic valve 10, the throttling effect is poor, and components such as a valve core and a spring inside the electronic valve 10 are impacted, so that the electronic valve 10 is leaked and damaged.

Referring to fig. 2, in some embodiments, the first delivery port 18 serves as a delivery inlet. The second delivery opening 20 serves as the delivery outlet 14. The conduit assembly 16 includes a first check valve 28, a second check valve 30, a third check valve 32, and a fourth check valve 38. The conduit structure 100 is configured such that media entering from the delivery inlet flows through the first check valve 28 and the fourth check valve 38 and exits the delivery outlet 14. The medium does not flow through the second check valve 30 and the third check valve 32.

In this way, medium can be caused to flow from the first delivery port 18, through the third delivery port 22, into the inlet 12, out of the outlet 14 to the fourth delivery port 24, and out of the second delivery port 20.

Specifically, in fig. 2, a first one-way valve 28 may be disposed between the first delivery port 18 and the third delivery port 22. The second check valve 30 may be disposed between the second delivery port 20 and the third delivery port 22. The third check valve 32 may be disposed between the first delivery port 18 and the fourth delivery port 24. A fourth one-way valve 38 may be disposed between the second delivery port 20 and the fourth delivery port 24. In one embodiment, first delivery port 18 may be a delivery inlet, media may flow from first delivery port 18 through first one-way valve 28 due to one-way flow of the one-way valve, without flowing from first delivery port 18 through second one-way valve 30 and third one-way valve 32, media may flow from first one-way valve 28 to third delivery port 22, from third delivery port 22 to inlet 12, throttled by electronic valve 10, and then flow from outlet 14 to fourth delivery port 24, then through fourth electronic valve 10, second delivery port 20 may be a delivery outlet 14, and finally flow from second delivery port 20. The solid arrows in the drawing may indicate flow paths through which the medium flows in from the first delivery port 18 and out from the second delivery port 20.

Referring to fig. 2, in some embodiments, the second delivery port 20 serves as a delivery inlet. The first delivery opening 18 serves as the delivery outlet 14. The conduit assembly 16 includes a first check valve 28, a second check valve 30, a third check valve 32, and a fourth check valve 38. The conduit structure 100 is configured such that medium entering from the delivery inlet flows through the second check valve 30 and the third check valve 32 and out of the delivery outlet 14. The medium does not flow through the first check valve 28 and the fourth check valve 38.

In this way, medium can be caused to flow from the second delivery port 20, through the third delivery port 22, into the inlet 12, out of the outlet 14 to the fourth delivery port 24, and out of the first delivery port 18.

Specifically, in fig. 2, in one embodiment, the second delivery port 20 may be used as a delivery inlet, medium may flow from the second delivery port 20, the medium may flow from the second delivery port 20 through the second one-way valve 30 due to the one-way flow action of the one-way valve, but may not flow from the second delivery port 20 through the first one-way valve 28 and the fourth one-way valve 38, then the medium may flow from the second one-way valve 30 to the third delivery port 22, then from the third delivery port 22 to the inlet 12, throttled by the electronic valve 10, then flow from the outlet 14 to the fourth delivery port 24, then through the third electronic valve 10, and the first delivery port 18 may be used as the delivery outlet 14, and finally flow from the first delivery port 18. The broken line arrow in the figure may indicate a flow path through which the medium flows in from the second conveyance port 20 and out from the first conveyance port 18.

Referring to fig. 1, in some embodiments, the conduit assembly 16 includes a first conduit 44 and a second conduit 46. The first delivery pipe 44 is connected to the first delivery port 18. The second delivery pipe 46 is connected to the second delivery port 20.

Thus, the means for storing the medium may be through the first or second infusion lines to deliver the medium to the tubing structure 100.

Specifically, the first delivery tube 44 may be disposed between the first check valve 28 and the third check valve 32. The second delivery tube 46 may be disposed between the second check valve 30 and the fourth check valve 38. In one embodiment, the first delivery tube 44 may be connected at the first delivery port 18 and the second delivery tube 46 may be connected at the second delivery port 20, such that the device storing the medium may deliver the medium through either the first delivery tube or the second delivery tube into the tubing arrangement 100.

Referring to fig. 1, in some embodiments, the conduit assembly 16 includes a first tee 48. First tee 48 is provided with a first port 50, a second port 52 and a third port 54. The first check valve 28 communicates with the first port 50. The second check valve 30 communicates with the second port 52. The third port 54 communicates with the inlet 12.

In this manner, medium flowing through either the first check valve 28 or the second check valve 30 may be allowed to flow to the inlet 12.

Specifically, in the embodiment shown in fig. 1, first tee 48 may be disposed between first check valve 28 and second check valve 30. In one embodiment, media enters from the first delivery port 18 and may flow through the first one-way valve 28, then from the first one-way valve 28 to the first port 50, then from the first port 50 to the third port 54, and finally from the third port 54 to the inlet 12. In one embodiment, the medium enters the flowable second one-way valve 30 from the second delivery port 20, then flows from the second one-way valve 30 to the second port 52, then flows from the second port 52 to the third port 54, and finally flows out of the third port 54 to the inlet 12. The third port 54 may serve as the third delivery port 22.

Referring to fig. 1, in some embodiments, the conduit assembly 16 includes a second tee 56. Second tee 56 is provided with a fourth port 58, a fifth port 60 and a sixth port 62. The fourth port 58 communicates with the third check valve 32. The fifth port 60 communicates with the fourth check valve 38. The sixth port 62 communicates with the outlet 14.

In this manner, the medium exiting the outlet 14 may be allowed to flow through the third check valve 32 or through the fourth check valve 38.

Specifically, second tee 56 may be disposed between third check valve 32 and fourth check valve 38. In one embodiment, media enters from the first delivery port 18 and can flow through the electronic valve 10 from the inlet 12, then out from the outlet 14 to the sixth port 62, then from the sixth port 62 to the fifth port 60, and finally out from the fifth port 60 to the fourth one-way valve 38. In one embodiment, media enters from the second delivery port 20 and can flow through the electronic valve 10 from the inlet 12, then out from the outlet 14 to the sixth port 62, then from the sixth port 62 to the fourth port 58, and finally out from the fourth port 58 to the third check valve 32. The sixth port 62 may serve as the fourth delivery port 24.

Referring to fig. 1, in some embodiments, the conduit assembly 16 includes a third tee 64. The third tee 64 is provided with a seventh port 66, an eighth port 68 and a ninth port 70. The third check valve 32 communicates with the seventh port 66. The eighth port 68 communicates with the first check valve 28. The first duct 44 communicates with the ninth port 70.

In this manner, media entering from the first delivery port 18 may be allowed to flow through the first one-way valve 28 and eventually flow out of the second delivery port 20, and media entering from the second delivery port 20 may be allowed to flow through the third one-way valve 32 and eventually flow out of the first delivery port 18.

Specifically, in fig. 1, a third tee 64 may be disposed between first check valve 28 and third check valve 32. In one embodiment, the ninth port 70 may serve as the first delivery port 18. The medium entering from the first delivery port 18 may flow to the eighth port 68, then from the eighth port 68 to the first one-way valve 28, then from the first one-way valve 28 to the third port 54, then from the inlet 12 to the outlet 14, then to the sixth port 62, then from the fifth port 60, then through the fourth one-way valve 38, and finally from the second delivery port 20. In one embodiment, the medium entering from the second delivery port 20 may flow through the second one-way valve 30, then from the second one-way valve 30 to the third port 54, then from the inlet 12 to the outlet 14, then to the sixth port 62, then from the fourth port 58, then through the third one-way valve 32, then from the third one-way valve 32 to the seventh port 66, and finally from the first delivery port 18.

Referring to fig. 1, in some embodiments, the conduit assembly 16 includes a fourth tee 72. The fourth tee 72 is provided with a tenth port 74, an eleventh port 76 and a tenth port 78. The fourth check valve 38 communicates with the tenth port 74. The eleventh port 76 communicates with the second check valve 30. The second delivery tube 46 communicates with the tenth port 78.

In this way, medium entering from the second delivery port 20 may be allowed to flow through the second one-way valve 30 and finally out of the first delivery port 18, and medium entering from the first delivery port 18 may be allowed to flow through the fourth one-way valve 38 and finally out of the second delivery port 20.

In particular, fourth tee 72 may be disposed between second check valve 30 and fourth check valve 38. In one embodiment, the twelfth port 78 may serve as the second delivery port 20. The medium entering from the second delivery port 20 may flow to the eleventh port 76, then from the eleventh port 76 to the second one-way valve 30, then from the second one-way valve 30 to the third port 54, then from the inlet 12 to the outlet 14, then to the sixth port 62, then from the fourth port 58, then through the third one-way valve 32, and finally from the first delivery port 18. In one embodiment, the medium entering from the first delivery port 18 may flow through the first one-way valve 28, then from the first one-way valve 28 to the third port 54, then from the inlet 12 to the outlet 14, then to the sixth port 62, then from the fifth port 60, then through the fourth one-way valve 38, then from the fourth one-way valve 38 to the tenth port 74, and finally from the second delivery port 20.

Referring to fig. 1, in certain embodiments, the third check valve 32 includes a first port 34 and a second port 36. In the case of the first feed opening 18 as feed inlet and the second feed opening 20 as feed outlet 14, the medium pressure of the second opening 36 is greater than the medium pressure of the first opening 34.

In this manner, the medium entering from the first delivery port 18 may flow through the electronic valve 10 and then to the sixth port 62, such that the third check valve 32 is not open, and thus the medium flows from the sixth port 62 to the fifth port 60 and then through the fourth check valve 38.

Specifically, the first port 34 is provided at an end of the third check valve 32 adjacent to the fourth port 58. The second port 36 is provided at an end of the third one-way valve 32 adjacent to the seventh port 66. In one embodiment, the medium entering from the first delivery port 18 may flow through the electronic valve 10 and then to the sixth port 62. Since the pressure of the medium in the second port 36 is greater than the pressure of the medium in the first port 34, the third check valve 32 is not open, so that medium flows from the sixth port 62 to the fifth port 60, then through the fourth check valve 38, and finally out the second delivery port 20.

Referring to fig. 1, in some embodiments, the fourth check valve 38 includes a third port 40 and a fourth port 42. In the case of the second delivery port 20 as the delivery inlet and the first delivery port 18 as the delivery outlet 14, the medium pressure of the fourth port 42 is greater than the medium pressure of the third port 40.

In this manner, the medium entering from the second delivery port 20 may flow through the electronic valve 10 and then to the sixth port 62, such that the fourth check valve 38 is not open, and thus the medium flows from the sixth port 62 to the fourth port 58 and then through the third check valve 32.

Specifically, the third port 40 is provided at an end of the fourth check valve 38 adjacent to the fifth port 60. The fourth port 42 is provided at an end of the fourth check valve 38 adjacent to the tenth port 74. In one embodiment, the medium entering from the second delivery port 20 may flow through the electronic valve 10 and then to the sixth port 62. Since the pressure of the medium in the fourth port 42 is greater than the pressure of the medium in the third port 40, the fourth check valve 38 is not open, so that medium flows from the sixth port 62 to the fourth port 58, then through the third check valve 32, and finally out the first delivery port 18.

An air conditioning apparatus according to an embodiment of the present utility model includes the pipe structure 100 of any of the above embodiments.

In the above air conditioning apparatus, by providing an electronic valve 10 connected to the pipeline assembly 16, the inlet 12 is communicated with the third delivery port 22, the outlet 14 is communicated with the fourth delivery port 24, and the medium flowing into the pipeline from the first delivery port 18 or the second delivery port 20 flows into the inlet 12 through the third delivery port 22 and then flows out from the outlet 14 to the fourth delivery port 24 by the flow restriction of the check valve, thereby facilitating control, avoiding reverse impact of the medium in the pipeline on the electronic valve 10, being beneficial to prolonging the service life of the electronic valve 10 and improving the reliability of the pipeline structure 100.

In particular, the air conditioning apparatus may comprise a floor air conditioner, a wall-mounted air conditioner. In one embodiment, the electronic valve 10 is connected with the pipeline assembly 16, the inlet 12 is communicated with the third conveying port 22, the outlet 14 is communicated with the fourth conveying port 24, and the medium flowing into the pipeline from the first conveying port 18 or the second conveying port 20 flows into the inlet 12 through the third conveying port 22 and then flows out of the outlet 14 to the fourth conveying port 24 by the circulation limitation of the one-way valve, so that the electronic valve is convenient to control, the medium in the pipeline is prevented from reversely impacting the electronic valve 10, the service life of the electronic valve 10 is prolonged, and the reliability of the pipeline structure 100 is improved. In addition, a cooling mode and a heating mode may be provided in the system of the air conditioning apparatus. In the cooling mode, a medium such as a refrigerant may enter the first delivery port 18 and eventually exit the second delivery port 20. In the heating mode, a medium such as a refrigerant may enter through the second delivery port 20 and finally flow out through the first delivery port 18. Through flowing in the medium from the inlet 12 of the electronic valve 10 and flowing out from the outlet 14, the system of the air conditioning equipment can not impact the electronic valve 10 when the refrigerating mode and the heating mode are switched, the service life and the system stability of the electronic valve 10 can be ensured, and other logic control is not needed, so that the electronic valve has the advantages of simple structure, convenience in processing, low cost and convenience in maintenance.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (11)

1. A piping structure, comprising:

An electronic valve comprising an inlet and an outlet;

The pipeline assembly is provided with a first conveying port, a second conveying port, a third conveying port and a fourth conveying port, the inlet is communicated with the third conveying port, the outlet is communicated with the fourth conveying port, at least one check valve is arranged on a pipeline between the two conveying ports, and the circulation directions of all the check valves are consistent.

2. The piping structure of claim 1, wherein said first delivery port is a delivery inlet and said second delivery port is a delivery outlet, said piping assembly comprising a first check valve, a second check valve, a third check valve and a fourth check valve, said piping structure being configured such that media entering from said delivery inlet flows through said first check valve and said fourth check valve and then flows out of said delivery outlet, said media not flowing through said second check valve and said third check valve.

3. The piping structure of claim 1, wherein said second delivery port is a delivery inlet and said first delivery port is a delivery outlet, and said piping assembly comprises a first check valve, a second check valve, a third check valve, and a fourth check valve, and said piping structure is configured such that medium entering from said delivery inlet flows through said second check valve and said third check valve and then flows out of said delivery outlet, and said medium does not flow through said first check valve and said fourth check valve.

4. A pipe structure according to any one of claims 2 or 3, wherein the pipe assembly comprises a first pipe and a second pipe, the first pipe being connected to the first port and the second pipe being connected to the second port.

5. A pipeline structure according to claim 2 or claim 3, wherein the pipeline assembly comprises a first tee provided with a first port, a second port and a third port, the first check valve being in communication with the first port, the second check valve being in communication with the second port, the third port being in communication with the inlet.

6. A pipeline structure according to claim 2 or 3, wherein the pipeline assembly comprises a second tee provided with a fourth port, a fifth port and a sixth port, the fourth port being in communication with the third one-way valve, the fifth port being in communication with the fourth one-way valve, the sixth port being in communication with the outlet.

7. The piping structure of claim 4, wherein said piping assembly comprises a third tee pipe, said third tee pipe being provided with a seventh port, an eighth port and a ninth port, said third check valve communicating with said seventh port, said eighth port communicating with said first check valve, and said first delivery pipe communicating with said ninth port.

8. The piping structure of claim 4, wherein said piping component comprises a fourth tee pipe, said fourth tee pipe being provided with a tenth port, an eleventh port and a twelfth port, said fourth check valve communicating with said tenth port, said eleventh port communicating with said second check valve, and said second delivery pipe communicating with said twelfth port.

9. The piping structure of claim 2, wherein said third one-way valve comprises a first port and a second port;

In the case where the first delivery port is the delivery inlet and the second delivery port is the delivery outlet, the medium pressure of the second port is greater than the medium pressure of the first port.

10. A pipeline structure according to claim 3, wherein the fourth one-way valve comprises a third port and a fourth port;

In the case where the second delivery port is the delivery inlet and the first delivery port is the delivery outlet, the medium pressure of the fourth port is greater than the medium pressure of the third port.

11. An air conditioning apparatus comprising the piping structure of any one of claims 1 to 10.