CN219433544U - System pipeline of double-compressor multi-connected air conditioner - Google Patents
System pipeline of double-compressor multi-connected air conditioner Download PDFInfo
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- CN219433544U CN219433544U CN202320647356.9U CN202320647356U CN219433544U CN 219433544 U CN219433544 U CN 219433544U CN 202320647356 U CN202320647356 U CN 202320647356U CN 219433544 U CN219433544 U CN 219433544U
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Abstract
The utility model relates to the technical field of multi-connected air conditioners, in particular to a system pipeline of a double-compressor multi-connected air conditioner, which comprises an exhaust pipe component, a first four-way valve, a second four-way valve and a gas-liquid separator liquid inlet pipe, wherein the exhaust pipe component is provided with a first pull-out port and a second pull-out port, the gas-liquid separator liquid inlet pipe is provided with a third pull-out port and a fourth pull-out port, a D interface of the first four-way valve is communicated with the first pull-out port, a D interface of the second four-way valve is communicated with the second pull-out port, an S interface of the first four-way valve is communicated with the third pull-out port, and an S interface of the second four-way valve is communicated with the fourth pull-out port.
Description
Technical Field
The utility model relates to the technical field of multi-connected air conditioners, in particular to a system pipeline of a double-compressor multi-connected air conditioner.
Background
The multi-split air conditioning system is a high-efficiency refrigerant air conditioning system which timely meets the indoor cold and hot load requirements by controlling the circulation quantity of the refrigerant of the compressor and the flow quantity of the refrigerant entering the indoor heat exchanger in the air conditioning system.
The multi-split air conditioning system needs to adopt a variable frequency compressor, a multi-pole compressor, an unloading compressor or a combination of a plurality of compressors to realize compressor capacity control; an electronic expansion valve or other auxiliary circuits are required to be arranged in the refrigeration system so as to regulate the flow of the refrigerant entering the indoor unit; the capacity of the heat exchanger is regulated by controlling the fan speed product of the indoor and outdoor heat exchangers.
The system pipeline of the traditional double-compressor multi-connected air conditioner consists of an exhaust pipe assembly, a four-way valve assembly, a heat exchanger, a throttling component and an air suction pipe assembly; the exhaust port of the compressor is connected to the oil inlet through the exhaust pipe assembly, the oil outlet is communicated with the four-way valve assembly, the four-way valve is connected to the heat exchanger, the heat exchanger is connected to the gas component through the throttling component, and finally the gas component returns to the air suction port of the compressor through the air suction pipe assembly to form a system loop.
Typically, the four ports of the four-way valve are: the port D is connected with the exhaust pipe of the compressor, the port E is connected with the evaporator pipe, the port S is connected with the return air pipe of the compressor, and the port C is connected with the condenser pipe.
The refrigerant is driven to flow when the compressor runs, so that certain friction resistance is generated between the refrigerant and the pipe wall, and the pressure drop is generated in the whole system. The existing air conditioner system has more pipe design elbows, larger pressure drop can be generated, the unfavorable pressure drop can seriously reduce the performance of a machine, meanwhile, the processing technology of the old scheme is complex, the processing efficiency is greatly reduced, and the production cost is also wasted.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the utility model aims to provide a system pipeline of a double-compressor multi-connected air conditioner.
The aim of the utility model is achieved by the following technical scheme: the utility model provides a system pipeline of two compressor multi-connected air conditioner, includes blast pipe subassembly, first cross valve, second cross valve and vapour and liquid separator feed liquor pipe, first pull out mouthful and the second pull out mouthful have been seted up to the blast pipe subassembly, vapour and liquid separator feed liquor pipe has been seted up the third and has been pulled out mouthful and the fourth and pull out mouthful, the D interface and the first mouthful intercommunication that pulls out of first cross valve, the D interface and the second of second cross valve pull out mouthful intercommunication, the S interface and the third of first cross valve pull out mouthful intercommunication, the S interface and the fourth of second cross valve pull out mouthful intercommunication.
Preferably, the exhaust pipe assembly comprises a first oil separator air inlet pipe, a second oil separator air inlet pipe, a first three-way pipe and a first exhaust pipe, wherein the first oil separator air inlet pipe, the second oil separator air inlet pipe and the first exhaust pipe are respectively communicated with three interfaces of the first three-way pipe, and the first pull opening and the second pull opening are both formed in the first exhaust pipe.
Preferably, the D interface of the first four-way valve is welded with the first pull-out port, and the D interface of the second four-way valve is welded with the second pull-out port.
Preferably, the first oil separator air inlet pipe and the second oil separator air inlet pipe are both provided with a first one-way valve for gas to flow along the first exhaust pipe.
Preferably, the S-port of the first four-way valve is welded with the third pull-out port, and the S-port of the second four-way valve is welded with the fourth pull-out port.
Preferably, the system pipeline further comprises a first condenser air inlet pipe, a second condenser air inlet pipe and an evaporator liquid outlet pipe assembly, the first condenser air inlet pipe is communicated with the C interface of the first four-way valve, the second condenser air inlet pipe is communicated with the C interface of the second four-way valve, and the E interface of the first four-way valve and the E interface of the second four-way valve are both communicated with the evaporator liquid outlet pipe assembly.
Preferably, the evaporator liquid outlet pipe assembly comprises a first evaporator liquid outlet pipe, a second three-way pipe, a first liquid separating pipe and a second liquid separating pipe, and the first evaporator liquid outlet pipe, the first liquid separating pipe and the second liquid separating pipe are respectively communicated with three interfaces of the second three-way pipe.
Preferably, the first liquid separating pipe and the second liquid separating pipe are both provided with a second one-way valve for preventing liquid from flowing back to the liquid outlet pipe of the first evaporator.
The utility model has the beneficial effects that: according to the system pipeline of the double-compressor multi-connected air conditioner, the exhaust pipe component is provided with the first pull-out port and the second pull-out port, the liquid inlet pipe of the gas-liquid separator is provided with the third pull-out port and the fourth pull-out port, the D interface of the first four-way valve is communicated with the first pull-out port, the D interface of the second four-way valve is communicated with the second pull-out port, the S interface of the first four-way valve is communicated with the third pull-out port, the S interface of the second four-way valve is communicated with the fourth pull-out port, the exhaust pipe component is prevented from being shunted to the D interface of the first four-way valve and the D interface of the second four-way valve by adopting the three-way pipe and the elbow, and the S interface of the first four-way valve and the S interface of the second four-way valve are prevented from being converged to the liquid inlet pipe of the gas-liquid separator, so that the pressure drop is reduced, the performance of the unit is improved, the pipeline vibration is avoided, the material cost is saved, and the installation efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
the reference numerals are: 1. a first four-way valve; 2. a second four-way valve; 3. an exhaust pipe assembly; 31. the first oil separator air inlet pipe; 32. the second oil separator air inlet pipe; 33. a first tee; 34. a first exhaust pipe; 4. a liquid inlet pipe of the gas-liquid separator; 5. a first pull-out port; 6. a second pull-out port; 7. a third pull-out port; 8. a fourth pull-out port; 9. a first one-way valve; 10. a first condenser air intake pipe; 11. a second condenser air inlet pipe; 12. an evaporator outlet tube assembly; 121. a first evaporator outlet pipe; 122. a second tee; 123. a first liquid separation pipe; 124. a second liquid separation pipe; 13. and a second one-way valve.
Detailed Description
The present utility model will be further described with reference to examples and drawings, which are not intended to be limiting, for the understanding of those skilled in the art.
As shown in fig. 1, a system pipeline of a dual-compressor multi-connected air conditioner comprises an exhaust pipe assembly 3, a first four-way valve 1, a second four-way valve 2 and a gas-liquid separator liquid inlet pipe 4, wherein the exhaust pipe assembly 3 is provided with a first pull-out port 5 and a second pull-out port 6, the gas-liquid separator liquid inlet pipe 4 is provided with a third pull-out port 7 and a fourth pull-out port 8, a D interface of the first four-way valve 1 is communicated with the first pull-out port 5, a D interface of the second four-way valve 2 is communicated with the second pull-out port 6, an S interface of the first four-way valve 1 is communicated with the third pull-out port 7, and an S interface of the second four-way valve 2 is communicated with the fourth pull-out port 8.
According to the system pipeline of the double-compressor multi-connected air conditioner, the exhaust pipe assembly 3 is provided with the first pull-out port 5 and the second pull-out port 6, the gas-liquid separator liquid inlet pipe 4 is provided with the third pull-out port 7 and the fourth pull-out port 8, the D interface of the first four-way valve 1 is communicated with the first pull-out port 5, the D interface of the second four-way valve 2 is communicated with the second pull-out port 6, the S interface of the first four-way valve 1 is communicated with the third pull-out port 7, the S interface of the second four-way valve 2 is communicated with the fourth pull-out port 8, the exhaust pipe assembly 3 is prevented from being shunted to the D interface of the first four-way valve 1 and the D interface of the second four-way valve 2 by adopting a three-way pipe and an elbow, the S interface of the first four-way valve 1 and the S interface of the second four-way valve 2 are prevented from being converged to the gas-liquid separator liquid inlet pipe 4, the pressure drop is reduced, the unit performance is improved, the vibration of the pipeline is also reduced, the material cost is saved, and the installation efficiency is improved.
Further, the exhaust pipe assembly 3 includes a first oil separator air inlet pipe 31, a second oil separator air inlet pipe 32, a first three-way pipe 33 and a first exhaust pipe 34, the first oil separator air inlet pipe 31, the second oil separator air inlet pipe 32 and the first exhaust pipe 34 are respectively communicated with three interfaces of the first three-way pipe 33, and the first pull-out port 5 and the second pull-out port 6 are both arranged on the first exhaust pipe 34.
Further, the D interface of the first four-way valve 1 is welded with the first pull-out port 5, and the D interface of the second four-way valve 2 is welded with the second pull-out port 6. The connection stability of the D interface of the first four-way valve 1 and the first pull-out port 5 and the connection stability of the D interface of the second four-way valve 2 and the second pull-out port 6 are improved.
Further, the first oil separator air inlet pipe 31 and the second oil separator air inlet pipe 32 are both provided with a first check valve 9 for enabling air to flow along the first exhaust pipe 34, so that the refrigerant is prevented from flowing back to the double compressors along the first oil separator air inlet pipe 31 and the second oil separator air inlet pipe 32.
Further, the S-port of the first four-way valve 1 is welded to the third pull-out port 7, and the S-port of the second four-way valve 2 is welded to the fourth pull-out port 8. The connection stability of the S interface of the first four-way valve 1 and the third pull-out port 7 and the connection stability of the S interface of the second four-way valve 2 and the fourth pull-out port 8 are improved.
Further, the system pipeline further comprises a first condenser air inlet pipe 10, a second condenser air inlet pipe 11 and an evaporator liquid outlet pipe assembly 12, the first condenser air inlet pipe 10 is communicated with the C interface of the first four-way valve 1, the second condenser air inlet pipe 11 is communicated with the C interface of the second four-way valve 2, and the E interface of the first four-way valve 1 and the E interface of the second four-way valve 2 are both communicated with the evaporator liquid outlet pipe assembly 12.
Further, the evaporator outlet pipe assembly 12 includes a first evaporator outlet pipe 121, a second tee 122, a first liquid dividing pipe 123 and a second liquid dividing pipe 124, and the first evaporator outlet pipe 121, the first liquid dividing pipe 123 and the second liquid dividing pipe 124 are respectively communicated with three interfaces of the second tee 122.
Further, the first liquid dividing pipe 123 and the second liquid dividing pipe 124 are each provided with a second check valve 13 for preventing the liquid from flowing back to the first evaporator liquid outlet pipe 121. The refrigerant is prevented from flowing back to the first evaporator outlet pipe 121 along the first liquid separation pipe 123 and the second liquid separation pipe 124.
The above embodiments are preferred embodiments of the present utility model, and besides, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.
Claims (8)
1. A system pipeline of a double-compressor multi-connected air conditioner is characterized in that: including blast pipe subassembly, first cross valve, second cross valve and vapour and liquid separator feed liquor pipe, first pull out mouthful and second pull out mouthful have been seted up to the blast pipe subassembly, vapour and liquid separator feed liquor pipe has been seted up the third and has been pulled out mouthful and the fourth pulls out mouthful, the D interface of first cross valve and first pull out mouthful intercommunication, the D interface of second cross valve and second pull out mouthful intercommunication, the S interface of first cross valve and third pull out mouthful intercommunication, the S interface of second cross valve and fourth pull out mouthful intercommunication.
2. The system pipeline of the double-compressor multi-connected air conditioner according to claim 1, wherein: the exhaust pipe assembly comprises a first oil separator air inlet pipe, a second oil separator air inlet pipe, a first three-way pipe and a first exhaust pipe, wherein the first oil separator air inlet pipe, the second oil separator air inlet pipe and the first exhaust pipe are respectively communicated with three interfaces of the first three-way pipe, and the first pull opening and the second pull opening are both formed in the first exhaust pipe.
3. The system pipeline of the double-compressor multi-connected air conditioner according to claim 2, wherein: the D interface of the first four-way valve is welded with the first pull-out port, and the D interface of the second four-way valve is welded with the second pull-out port.
4. The system pipeline of the double-compressor multi-connected air conditioner according to claim 2, wherein: the first oil separator air inlet pipe and the second oil separator air inlet pipe are respectively provided with a first one-way valve for enabling gas to flow to the first exhaust pipe along the direction.
5. The system pipeline of the double-compressor multi-connected air conditioner according to claim 1, wherein: the S interface of the first four-way valve is welded with the third pull-out port, and the S interface of the second four-way valve is welded with the fourth pull-out port.
6. The system pipeline of the double-compressor multi-connected air conditioner according to claim 1, wherein: the system pipeline further comprises a first condenser air inlet pipe, a second condenser air inlet pipe and an evaporator liquid outlet pipe assembly, wherein the first condenser air inlet pipe is communicated with a C interface of the first four-way valve, the second condenser air inlet pipe is communicated with a C interface of the second four-way valve, and an E interface of the first four-way valve and an E interface of the second four-way valve are both communicated with the evaporator liquid outlet pipe assembly.
7. The system pipeline of the double-compressor multi-connected air conditioner according to claim 6, wherein: the evaporator liquid outlet pipe assembly comprises a first evaporator liquid outlet pipe, a second three-way pipe, a first liquid separating pipe and a second liquid separating pipe, and the first evaporator liquid outlet pipe, the first liquid separating pipe and the second liquid separating pipe are respectively communicated with three interfaces of the second three-way pipe.
8. The system pipeline of the double-compressor multi-connected air conditioner according to claim 7, wherein: the first liquid separation pipe and the second liquid separation pipe are respectively provided with a second one-way valve for preventing liquid from flowing back to the liquid outlet pipe of the first evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320647356.9U CN219433544U (en) | 2023-03-28 | 2023-03-28 | System pipeline of double-compressor multi-connected air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320647356.9U CN219433544U (en) | 2023-03-28 | 2023-03-28 | System pipeline of double-compressor multi-connected air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219433544U true CN219433544U (en) | 2023-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320647356.9U Active CN219433544U (en) | 2023-03-28 | 2023-03-28 | System pipeline of double-compressor multi-connected air conditioner |
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| Country | Link |
|---|---|
| CN (1) | CN219433544U (en) |
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2023
- 2023-03-28 CN CN202320647356.9U patent/CN219433544U/en active Active
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