CN213747106U - Air conditioning system for solving low-temperature starting and running - Google Patents
Air conditioning system for solving low-temperature starting and running Download PDFInfo
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- CN213747106U CN213747106U CN202022547992.3U CN202022547992U CN213747106U CN 213747106 U CN213747106 U CN 213747106U CN 202022547992 U CN202022547992 U CN 202022547992U CN 213747106 U CN213747106 U CN 213747106U
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Abstract
The utility model discloses a solve air conditioning system of low temperature start-up and operation, include: compressor, condenser, expansion valve, evaporimeter and connect the pipe-line system of above-mentioned part, follow the condenser goes to second solenoid valve, reservoir and solenoid valve have set gradually on the pipeline of expansion valve, the reservoir includes confined cavity and sets up input joint and output connection on the confined cavity, second solenoid valve one end pass through the pipeline with the condenser links to each other, the other end pass through the pipeline with the input joint of reservoir links to each other, solenoid valve one end pass through the pipeline with the expansion valve links to each other, the other end pass through the pipeline with the output connection of reservoir links to each other, the condenser with be provided with condensing pressure controller on the pipeline between the second solenoid valve. The utility model discloses a set up second solenoid valve and condensation pressure controller, adjust the condensation pressure of entire system for the system starts more reliable operation under more excellent pressure.
Description
Technical Field
The utility model relates to an air conditioning system especially relates to an air conditioning system who solves low temperature start-up and operation.
Background
The refrigeration principle of a general air conditioning system is as follows: the compressor sucks working medium steam with lower pressure from the evaporator, compresses the steam with lower pressure into steam with higher pressure, reduces the volume of the steam, increases the pressure, and sends the steam into the condenser after increasing the pressure; in the condenser, the steam is condensed into liquid with higher pressure, and the liquid with lower pressure is sent into the evaporator after being throttled by the throttle valve; in the evaporator, the liquid absorbs heat and evaporates to become vapor with a low pressure, and the vapor is sent to the inlet of the compressor, thereby completing the refrigeration cycle.
The special environment to which the existing industrial air conditioning system is adapted is as follows: in winter in northern areas, the indoor unit of the air conditioning system is located in an enclosed indoor machine room with higher temperature, and the outdoor unit of the air conditioning system is located outdoors with lower temperature. When the air conditioning system is in a shutdown state, the refrigerating system stops working circulation, because the outdoor temperature is lower than the indoor temperature, the refrigerant in the refrigerating system migrates to the outdoor unit for a longer time and more until the refrigerant migrates to the outdoor unit completely, if the compressor is started, the situation that the compressor has no refrigerant or insufficient amount to cause continuous low-pressure protection after the compressor is started may occur, so that the compressor cannot be started normally, and even the compressor is damaged.
The prior art provides an air conditioning system started at a low temperature, as shown in fig. 1, the air conditioning system includes a compressor 1, a condenser 2, an expansion valve 3 and an evaporator 4, all the parts are sequentially connected to form a circulation loop, a refrigerant circulates in the whole loop, wherein a one-way valve 5, a liquid reservoir 6 and an electromagnetic valve 7 are sequentially arranged between the condenser 2 and the expansion valve, when the air conditioning system is in a shutdown state, a certain amount of refrigerant is stored in the liquid reservoir, when the compressor 1 is started, the electromagnetic valve 7 is synchronously started, the refrigerant is changed into a gaseous state in the evaporator through the expansion valve and enters the compressor, and normal opening of the air conditioning system in a machine room in a low temperature environment is ensured. In the scheme, the one-way valve is used for preventing the refrigerant in the liquid accumulator from migrating to the condenser when the refrigerating system is shut down, so that the system can be started smoothly at low ambient temperature, but the operating condensing pressure can only be maintained to be slightly higher than the saturation pressure corresponding to the indoor temperature of the liquid accumulator, and is about 0.08-0.1 MPa, and the optimal operation state of the refrigerating system cannot be achieved.
In order to further regulate the starting and operating pressures of the condensing system to make the operation of the air conditioning system more reliable, improvements to the prior art solutions are needed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a solve low temperature start-up and air conditioning system who moves to overcome above-mentioned problem.
In order to solve the technical problem, the utility model discloses a technical scheme be: an air conditioning system is provided that addresses cold start and operation, comprising: compressor, condenser, expansion valve, evaporimeter and connect the pipe-line system of above-mentioned part, follow the condenser goes to second solenoid valve, reservoir and solenoid valve have set gradually on the pipeline of expansion valve, the reservoir includes confined cavity and sets up input joint and output connection on the confined cavity, second solenoid valve one end pass through the pipeline with the condenser links to each other, the other end pass through the pipeline with the input joint of reservoir links to each other, solenoid valve one end pass through the pipeline with the expansion valve links to each other, the other end pass through the pipeline with the output connection of reservoir links to each other, the condenser with be provided with condensing pressure controller on the pipeline between the second solenoid valve.
Furthermore, a pressure sensing end of the condensing pressure controller is connected to a pipeline between the condenser and the second electromagnetic valve, and the condensing pressure controller controls the second electromagnetic valve to be opened and closed according to pressure change sensed by the pressure sensing end.
Further, the condensation pressure controller controls the second electromagnetic valve to be opened when the condensation pressure rises to 1.5Mpa, and controls the second electromagnetic valve to be closed when the condensation pressure falls to 1.3 Mpa.
Furthermore, a liquid viewing mirror is arranged on the liquid storage device and is arranged at the position of the rated liquid level of the liquid storage device.
Furthermore, a floating ball used for indicating the liquid level is arranged in the liquid sight glass.
Furthermore, the condenser and the evaporator are both provided with fans.
The utility model has the advantages that: through setting up second solenoid valve and condensation pressure controller, adjust the condensation pressure of whole system for the system starts under better pressure, more reliable operation.
Drawings
Fig. 1 is a schematic diagram of a prior art cold start architecture.
Fig. 2 is a schematic structural diagram of an embodiment of the present invention.
The parts in the drawings are numbered as follows: 1. the system comprises a compressor, 2, a condenser, 3, an expansion valve, 4, an evaporator, 5, a one-way valve, 51, a condensation pressure controller, 52, a second electromagnetic valve, 6, a liquid storage device, 7 and an electromagnetic valve.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 2, an embodiment of the present invention includes: the air conditioner comprises a compressor 1, a condenser 2, an expansion valve 3, an evaporator 4 and a pipeline system for connecting the components, wherein a second electromagnetic valve 52, a liquid storage device 6 and an electromagnetic valve 7 are sequentially arranged on a pipeline from the condenser 2 to the expansion valve 3, fans (not marked) are arranged on the condenser 2 and the evaporator 4, the condenser 2 is arranged in an outdoor unit of the whole air conditioning system, and the rest parts of the condenser are arranged in an indoor unit of the air conditioning system.
Be provided with condensing pressure controller 51 on the pipeline between condenser 2 and the second solenoid valve 52, on the pressure-sensitive end of condensing pressure controller 51 is connected to the pipeline between condenser 2 and the second solenoid valve 52, opening and closing of pressure change control second solenoid valve 52 that condensing pressure controller 51 felt according to the pressure-sensitive end, reservoir 6 includes confined cavity (not mark) and sets up input connector (not mark) and output connector (not mark) on the confined cavity, second solenoid valve 52 one end is passed through the pipeline and is linked to each other with condensing pressure controller 51, and the other end passes through the pipeline and links to each other with the input connector of reservoir 6, and the one end of solenoid valve 7 is passed through the pipeline and is linked to each other with expansion valve 3, and the other end passes through the pipeline and links to each other with the output connector of reservoir 6.
Specifically, a sight glass (not shown) is provided on the reservoir 6, the sight glass is provided at a position of a rated liquid level of the reservoir 6, and a float ball for indicating the liquid level is provided in the sight glass.
The utility model relates to a solve low temperature start and air conditioning system's of operation configuration principle as follows: the system is configured to calculate the refrigerant storage capacity based on the total condenser coil filled with liquid refrigerant at low temperature (within 5 meters of the indoor and outdoor tube lengths).
The utility model relates to a solve air conditioning system's of low temperature start-up and operation theory of operation as follows: the air conditioning system is in a shutdown state; starting an air conditioning system, starting a compressor, synchronously opening an electromagnetic valve, and increasing the pressure of the whole condensing system; when the condensing pressure rises to 1.5Mpa, the condensing pressure controller controls the second electromagnetic valve to open, and when the condensing pressure drops to 1.3Mpa, the second electromagnetic valve is controlled to close, so that the operation pressure of the whole system is maintained between 1.3-1.5 Mpa.
The utility model relates to a solve air conditioning system of low temperature start-up and operation: through setting up second solenoid valve and condensation pressure controller, adjust the condensation pressure of whole system for the system starts under better pressure, more reliable operation.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (6)
1. An air conditioning system that addresses low temperature start-up and operation, comprising: compressor, condenser, expansion valve, evaporimeter and connect the pipe-line system of above-mentioned part, follow the condenser goes to second solenoid valve, reservoir and solenoid valve have set gradually on the pipeline of expansion valve, the reservoir includes confined cavity and sets up input joint and output connection on the confined cavity, second solenoid valve one end pass through the pipeline with the condenser links to each other, the other end pass through the pipeline with the input joint of reservoir links to each other, solenoid valve one end pass through the pipeline with the expansion valve links to each other, the other end pass through the pipeline with the output connection of reservoir links to each other, the condenser with be provided with condensing pressure controller on the pipeline between the second solenoid valve.
2. An air conditioning system for solving the problem of low temperature start-up and operation as claimed in claim 1, wherein the pressure sensing end of the condensing pressure controller is connected to the pipeline between the condenser and the second solenoid valve, and the condensing pressure controller controls the second solenoid valve to open and close according to the pressure change sensed by the pressure sensing end.
3. An air conditioning system solving the problem of low temperature start-up and operation as claimed in claim 2, wherein the condensing pressure controller controls the second solenoid valve to be opened when the condensing pressure rises to 1.5Mpa, and controls the second solenoid valve to be closed when the condensing pressure falls to 1.3 Mpa.
4. An air conditioning system for solving the problems of low temperature start and operation as set forth in claim 1, wherein said accumulator is provided with a sight glass, said sight glass being provided at a position of a rated liquid level of said accumulator.
5. An air conditioning system for solving the problem of low temperature start and operation as claimed in claim 4, wherein a floating ball for indicating the liquid level is arranged in the liquid viewing mirror.
6. An air conditioning system for solving the problems of low temperature start-up and operation as set forth in claim 1 wherein fans are provided on both said condenser and said evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022547992.3U CN213747106U (en) | 2020-11-06 | 2020-11-06 | Air conditioning system for solving low-temperature starting and running |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022547992.3U CN213747106U (en) | 2020-11-06 | 2020-11-06 | Air conditioning system for solving low-temperature starting and running |
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| Publication Number | Publication Date |
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| CN213747106U true CN213747106U (en) | 2021-07-20 |
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| CN202022547992.3U Active CN213747106U (en) | 2020-11-06 | 2020-11-06 | Air conditioning system for solving low-temperature starting and running |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659238A (en) * | 2022-03-11 | 2022-06-24 | 深圳市英威腾网能技术有限公司 | Air conditioning system and low-temperature starting control method thereof |
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2020
- 2020-11-06 CN CN202022547992.3U patent/CN213747106U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114659238A (en) * | 2022-03-11 | 2022-06-24 | 深圳市英威腾网能技术有限公司 | Air conditioning system and low-temperature starting control method thereof |
| CN114659238B (en) * | 2022-03-11 | 2024-04-02 | 深圳市英威腾网能技术有限公司 | Air conditioning system and low-temperature starting control method thereof |
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