Multi-module fluorine pump all-in-one machine

Abstract

This utility model relates to the field of refrigeration equipment technology, specifically to a multi-module refrigerant pump integrated machine, including four compressors, four refrigerant pumps, two condensers, and two evaporators. The four compressors are connected in parallel in pairs, and the four refrigerant pumps are also connected in parallel in pairs. Each of the two sets of compressors is connected to one of the two condensers, and each of the two sets of refrigerant pumps is connected to one of the two condensers. The two sets of compressors and refrigerant pumps are connected in parallel with the two evaporators, and the two evaporators are connected in series. This invention solves the problem that existing technologies, which only have a single system, are unable to make quick and effective adjustments when facing equipment failures or large load fluctuations, which may lead to poor cooling performance or even system paralysis, affecting the normal operation of data centers and other places.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a multi-module fluorine pump integrated machine. Background Technology

[0002] A refrigerant pump air conditioning system is an air conditioning system that uses a refrigerant pump to drive the refrigerant circulation to achieve high-efficiency cooling. It is commonly used in data centers, communication equipment rooms, and other places with high cooling requirements. In existing refrigerant pump air conditioning systems, the refrigerant pump and the compressor refrigeration system share the evaporator, condenser, and refrigerant piping system. Both the compressor and the refrigerant pump are equipped with bypass valves. In compressor cooling mode, the refrigerant pump bypass valve is opened and the refrigerant pump is closed; in refrigerant pump cooling mode, the compressor bypass valve is opened and the compressor is closed; in mixed cooling mode, both the compressor and refrigerant pump bypass valves are closed and both the compressor and refrigerant pump are turned on. This cooling method has the following drawbacks: When the compressor is used for cooling alone, due to considerations for the reliability of the refrigerant pump, its internal refrigerant charge is relatively high, resulting in excessively high pressure and low energy efficiency when the compressor is running alone; when the refrigerant pump is running alone, the head is high, leading to a decrease in system energy efficiency; in the mixed compressor-pump operation mode, due to the temperature difference between the compressor and the refrigerant pump discharge, the compressor reliability is reduced, and the energy-saving effect is not significant.

[0003] The prior art CN222811950U discloses a refrigerant pump refrigeration system, including a main circulation circuit with a compressor, a liquid receiver, and a refrigerant pump. The circulation branches include at least a first circulation branch, a second circulation branch, a third circulation branch, and a fourth circulation branch. One end of a first transfer circuit is connected to the second circulation branch via a first solenoid valve, and the other end is connected to the third circulation branch via a second solenoid valve. One end of a second transfer circuit is connected to the first circulation branch via a third solenoid valve, and the other end is connected to the fourth circulation branch via a fourth solenoid valve. In the refrigerant pump refrigeration system of this application, in both compressor-only and refrigerant pump-only operation modes, the number of condensers and evaporators participating in heat exchange is adjusted according to actual refrigeration needs, increasing the refrigeration range. In pump-only mode, the refrigerant pump and compressor operate independently according to their respective operating modes, which is beneficial for improving system energy efficiency and compressor reliability.

[0004] Existing refrigerant pump refrigeration systems, being equipped with only a single system, are difficult to adjust quickly and effectively when faced with equipment failures or large load fluctuations. This can lead to poor cooling performance or even system failure, affecting the normal operation of data centers and other similar locations. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-module refrigerant pump integrated unit, which solves the problem that the existing technology, which is equipped with only a single system, is difficult to make effective adjustments quickly when facing equipment failure or large load fluctuations, which may lead to poor cooling effect or even system paralysis, affecting the normal operation of data centers and other places.

[0006] To achieve the above objectives, this utility model provides a multi-module refrigerant pump integrated machine, including four compressors, four refrigerant pumps, two condensers and two evaporators. The four compressors are connected in parallel in pairs as a group, the four refrigerant pumps are connected in parallel in pairs as a group, the two groups of compressors are respectively connected to the two condensers, the two groups of refrigerant pumps are respectively connected to the two condensers, the two groups of compressors and the refrigerant pumps are respectively connected in parallel with the two evaporators, and the two evaporators are connected in series.

[0007] The multi-module fluorine pump integrated machine also includes a second bypass pipe, and there are four sets of the second bypass pipes. The four sets of the second bypass pipes are respectively connected in parallel with two sets of compressors and two sets of fluorine pumps.

[0008] The multi-module fluorine pump integrated machine also includes two liquid storage tanks, which are respectively installed on the liquid outlet pipes of the two condensers.

[0009] The multi-module fluorine pump integrated machine also includes a one-way valve, and the compressor, the fluorine pump and the second bypass pipe are all equipped with the one-way valve.

[0010] The multi-module fluorine pump integrated unit also includes an electronic expansion valve, which is installed in the circulation loop between the condenser and the evaporator.

[0011] This utility model discloses a multi-module refrigerant pump integrated unit, comprising four compressors, four refrigerant pumps, two condensers, and two evaporators. The four compressors are connected in parallel in pairs, and the four refrigerant pumps are also connected in parallel in pairs. Two sets of compressors are connected to two condensers, and two sets of refrigerant pumps are connected to two condensers. The two sets of compressors and refrigerant pumps are connected in parallel with the two evaporators, and the two evaporators are connected in series. This invention solves the problem in existing technologies where only a single system is equipped, making it difficult to make quick and effective adjustments when facing equipment failures or large load fluctuations, which may lead to poor cooling performance or even system paralysis, affecting the normal operation of data centers and other locations. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of the multi-module fluorine pump integrated machine of this utility model.

[0014] In the diagram: 101-compressor, 102-fluorine pump, 103-condenser, 104-evaporator, 105-second bypass pipe, 106-liquid receiver, 107-check valve, 108-electronic expansion valve. Detailed Implementation

[0015] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0016] The embodiment of this application is as follows:

[0017] Please see Figure 1 , Figure 1 This is a schematic diagram of the overall structure of the multi-module fluorine pump integrated machine of this utility model.

[0018] This utility model relates to a multi-module integrated refrigerant pump unit, comprising a compressor 101, a refrigerant pump 102, a condenser 103, an evaporator 104, a second bypass pipe 105, a liquid receiver 106, a one-way valve 107, and an electronic expansion valve 108. It solves the problem in existing technologies where only a single system is equipped, making it difficult to quickly and effectively adjust to equipment failures or significant load fluctuations, potentially leading to poor cooling performance or even system failure, thus affecting the normal operation of data centers and other similar locations. The aforementioned solution can also prevent system failure due to the damage of a single device, ensuring the stability of system operation.

[0019] In this embodiment, by adopting a dual-system four-frequency inverter compressor architecture, the problem of existing technologies, which are equipped with only a single system, being unable to make effective adjustments quickly when faced with equipment failure or large load fluctuations, may lead to poor cooling performance or even system paralysis, affecting the normal operation of data centers and other places.

[0020] The four compressors 101 are connected in parallel in pairs, and the four refrigerant pumps 102 are also connected in parallel in pairs. Each pair of compressors 101 is connected to one of the two condensers 103, and each pair of refrigerant pumps 102 is connected to one of the two condensers 103. The two sets of compressors 101 and refrigerant pumps 102 are connected in parallel with each of the two evaporators 104. The two evaporators 104 are connected in series. The parallel connection of the compressors 101, refrigerant pumps 102, and condensers 103 enhances system redundancy and load regulation capabilities. The series arrangement of the evaporators 104 extends the refrigeration time. The refrigerant path significantly improves heat exchange efficiency. The compressor 101, refrigerant pump 102, and condenser 103 are connected in parallel in pairs. This design allows the system to quickly adjust its operating mode in the event of equipment failure, with other parallel devices continuing to handle the cooling task. This avoids system paralysis due to the failure of a single device, ensuring system stability. Simultaneously, when the load changes, the system can flexibly adjust the number of participating devices and operating parameters to achieve precise load regulation and meet cooling needs under different operating conditions, making it particularly suitable for high-load and fluctuating scenarios such as data centers. The evaporator 104 is arranged in series, extending the refrigerant path. This allows for more sufficient contact time and a larger contact area between the refrigerant and the surrounding environment, significantly improving heat exchange efficiency. This invention, by adopting a dual-system four-frequency inverter compressor architecture and optimizing the connection and arrangement of compressor 101, refrigerant pump 102, condenser 103, and evaporator 104, improves system redundancy and load regulation capabilities; and enhances heat exchange efficiency by extending the refrigerant path.

[0021] Secondly, there are four sets of the second bypass pipes 105. The four sets of second bypass pipes 105 are connected in parallel with two sets of compressors 101 and two sets of refrigerant pumps 102 respectively. Both compressors 101 and refrigerant pumps 102 are connected in parallel with the second bypass pipes 105. The second bypass pipes 105 can divert part of the refrigerant to avoid energy efficiency loss caused by excessive flow in a single circulation path. When the compressors 101 or refrigerant pumps 102 are temporarily shut down or under partial load, the second bypass pipes 105 can maintain the basic circulation of refrigerant and prevent the heat exchange efficiency of local pipelines from being affected by a sudden decrease in flow. It can provide an additional flow path for refrigerant and flexibly adjust the refrigerant flow distribution in the system, thereby adapting to load changes or equipment operating status adjustments under different operating conditions.

[0022] Meanwhile, there are two liquid storage tanks 106, which are respectively installed on the liquid outlet pipes of the two condensers 103. The liquid storage tanks 106 are provided on the liquid outlet pipes of the condensers 103. The liquid storage tanks 106 can effectively ensure the stability of the liquid refrigerant supply at the inlet of the fluorine pump 102 and avoid the risk of cavitation.

[0023] In addition, the compressor 101, the refrigerant pump 102, and the second bypass pipe 105 are all equipped with the one-way valve 107. The refrigerant pump 102 and the two sets of the second bypass pipes 105 connected in parallel are all equipped with the one-way valve 107, which can ensure that the refrigerant flows unidirectionally from the condenser 103 to the evaporator 104 when the refrigerant pump 102 is in operation. The compressor 101 and the two sets of the second bypass pipes 105 connected in parallel are also equipped with the one-way valve 107, which can ensure that the refrigerant flows unidirectionally from the compressor 101 to the condenser 103 when the compressor 101 is in operation. Through the one-way valve 107, the refrigerant can be ensured to flow in a specific direction, avoiding backflow that would disrupt the system's circulation logic.

[0024] Finally, the electronic expansion valve 108 is installed in the circulation loop between the condenser 103 and the evaporator 104. During system operation, the electronic expansion valve 108 can adjust the refrigerant flow rate into the evaporator 104 by adjusting the valve opening according to the heat load changes of the evaporator 104, so that the refrigerant can fully evaporate and absorb heat in the evaporator 104, thereby ensuring the stability of heat exchange efficiency. At the same time, the throttling process can reduce the pressure and temperature of the refrigerant, providing a suitable refrigerant for the subsequent refrigeration cycle of the evaporator 104. Through the electronic expansion valve 108, more precise temperature control and energy efficiency optimization can be achieved.

[0025] In this embodiment, the present invention adopts a dual-system four-frequency inverter compressor structure, comprising four compressors 101, four refrigerant pumps 102, two condensers 103, and two evaporators 104. The core design includes: the compressors 101, refrigerant pumps 102, and condensers 103 are connected in parallel in pairs to enhance system redundancy and load regulation capability; the evaporators 104 are arranged in series, significantly improving heat exchange efficiency by extending the refrigerant path; the liquid outlet pipe of the condenser 103 is equipped with a liquid storage tank 106, effectively ensuring the stability of the liquid refrigerant supply at the inlet of the refrigerant pumps 102 and avoiding the risk of cavitation. This structure fully utilizes natural cold sources, significantly reducing energy consumption during transitional seasons through the refrigerant pump mode, while the frequency conversion technology achieves precise temperature control, making it particularly suitable for high-load scenarios such as data centers, resulting in a significant improvement in the overall coefficient of performance (COP). When faced with equipment failure, this system can quickly adjust its operating mode, allowing other parallel devices to continue the cooling task. This avoids system paralysis due to the failure of a single device, ensuring the stability of system operation. It solves the problem that existing technologies, which are equipped with only a single system, are unable to make effective adjustments quickly when faced with equipment failure or large load fluctuations, which may lead to poor cooling effect or even system paralysis, affecting the normal operation of data centers and other places.

[0026] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A multi-module fluorine pump all-in-one machine, characterized in that, It includes four compressors, four refrigerant pumps, two condensers and two evaporators. The four compressors are connected in parallel in pairs, and the four refrigerant pumps are connected in parallel in pairs. The two sets of compressors are connected to the two condensers respectively, the two sets of refrigerant pumps are connected to the two condensers respectively, the two sets of compressors and the refrigerant pumps are connected in parallel with the two evaporators respectively, and the two evaporators are connected in series.

2. The multi-module fluorine pump integrated machine as described in claim 1, characterized in that, The multi-module fluorine pump integrated machine also includes a second bypass pipe, and there are four sets of the second bypass pipes. The four sets of the second bypass pipes are respectively connected in parallel with two sets of compressors and two sets of fluorine pumps.

3. The multi-module fluorine pump integrated machine as described in claim 1, characterized in that, The multi-module fluorine pump integrated machine also includes two liquid storage tanks, which are respectively installed on the liquid outlet pipes of the two condensers.

4. The multi-module fluorine pump integrated machine as described in claim 2, characterized in that, The multi-module fluorine pump integrated machine also includes a one-way valve, and the compressor, the fluorine pump and the second bypass pipe are all equipped with the one-way valve.

5. The multi-module fluorine pump integrated machine as described in claim 1, characterized in that, The multi-module fluorine pump integrated unit also includes an electronic expansion valve, which is installed in the circulation loop between the condenser and the evaporator.

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