Pump body structure, compressor and heat pump system

Abstract

The utility model relates to a kind of pump body structure, compressor and heat pump system, pump body structure includes primary compression part, intermediate cooling part, secondary compression part, intermediate pipeline, primary compression part has primary compression cavity, intermediate cooling part has intermediate cooling cavity, secondary compression part has secondary compression cavity;Primary compression part has respectively with primary compression cavity intercommunication primary air inlet channel, air supplement channel, primary compression cavity has with intermediate cooling cavity intercommunication primary exhaust port;Intermediate cooling part has with intermediate cooling cavity intercommunication exhaust passage, secondary compression part has with secondary compression cavity intercommunication secondary air inlet channel, exhaust passage and secondary air inlet channel are connected by intermediate pipeline between it.The pump body structure, compressor and heat pump system of the utility model, by secondary compression refrigerant gas can effectively improve refrigerating capacity, reduce exhaust temperature and power consumption, and improve the energy efficiency ratio of system.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to a pump body structure, a compressor and a heat pump system. Background Technology

[0002] Heat pump air conditioners are characterized by high efficiency, cleanliness, and zero pollution, resulting in significant market demand. In a heat pump system, the compressor is the core component, and its performance directly affects the system's heating efficiency and stability. Traditional heat pump compressors often employ a single-stage compression cycle; however, under low-temperature conditions, single-stage compression faces problems such as excessively high compression ratios and excessively high exhaust temperatures, leading to low system efficiency and unstable operation. Utility Model Content

[0003] Based on this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a pump body structure, compressor and heat pump system that can effectively increase the cooling capacity, reduce the exhaust temperature and power consumption, and improve the system's energy efficiency ratio by compressing the refrigerant gas in two stages.

[0004] To achieve the above objectives, the first aspect of this utility model provides a pump body structure, including a primary compression section, an intermediate cooling section, a secondary compression section, and an intermediate pipe. The primary compression section has a primary compression chamber, the intermediate cooling section has an intermediate cooling chamber, and the secondary compression section has a secondary compression chamber.

[0005] The primary compression section has a primary air intake channel and a replenishment channel that are respectively connected to the primary compression chamber. The primary compression chamber has a primary exhaust port that is connected to the intermediate cooling chamber. The intermediate cooling section has an exhaust channel that is connected to the intermediate cooling chamber. The secondary compression section has a secondary air intake channel that is connected to the secondary compression chamber. The exhaust channel and the secondary air intake channel are connected by the intermediate pipe.

[0006] Therefore, according to the pump body structure of this utility model embodiment, the system's cooling capacity and power consumption can be effectively improved by adopting a two-stage compression method for the refrigerant gas. Specifically, the low-temperature, low-pressure refrigerant gas is compressed to a medium-pressure state by the first-stage compression section and then transported to the intermediate cooling section. After the intermediate cooling section reduces the temperature of the medium-pressure refrigerant gas, the cooled medium-pressure refrigerant gas is then transported to the second-stage compression section and further compressed to a high-pressure state before being discharged. In other words, by using a first-stage compression, intermediate cooling, and second-stage compression method, the single compression ratio of the system can be reduced, effectively improving the system's exhaust temperature and compressor power consumption, and the system's energy efficiency ratio is also improved.

[0007] In one embodiment, the secondary compression section has a secondary exhaust port that communicates with the secondary compression chamber.

[0008] In one embodiment, the intermediate cooling section is disposed on one end face of the primary compression section, the other end face of the primary compression section is provided with a partition plate, and the secondary compression section is disposed on the end face of the partition plate away from the primary compression section.

[0009] In one embodiment, the end face of the intermediate cooling section away from the primary compression section is provided with a lower bearing section, and the end face of the secondary compression section away from the intermediate partition is provided with an upper bearing section.

[0010] In one embodiment, the intermediate cooling section has an intermediate channel connecting the intermediate cooling chamber and the primary exhaust port.

[0011] In one embodiment, an air supply regulating valve is provided in the air supply channel, which is used to control the opening and closing of the air supply channel.

[0012] As one implementation, the system also includes a temperature sensor, a pressure sensor, and a controller. The temperature sensor measures the temperature of the primary intake channel and transmits the measured temperature data to the controller. The pressure sensor measures the pressure of the primary intake channel and transmits the measured pressure data to the controller. The controller is electrically connected to the supplementary air regulating valve.

[0013] A second aspect of this utility model provides a compressor comprising the pump body structure described in any of the preceding embodiments, and further comprising a housing, a liquid receiver, and an enthalpy-enhancing component. The pump body structure is assembled inside the housing, and the liquid receiver and the enthalpy-enhancing component are respectively assembled outside the housing. The liquid receiver is connected to the primary intake channel, and the enthalpy-enhancing component is connected to the make-up gas channel. According to this utility model embodiment, the compressor can effectively increase the cooling capacity, reduce the exhaust temperature and power consumption, and improve the system's energy efficiency ratio by compressing the refrigerant gas in two stages.

[0014] In one embodiment, an air intake pipe is provided between the liquid reservoir and the primary air intake channel, and an air replenishment pipe is provided between the enthalpy-increasing component and the air replenishment channel. The air replenishment pipe is a copper pipe.

[0015] A third aspect of this utility model provides a heat pump system comprising the compressor described in any of the preceding embodiments. According to this utility model, the heat pump system effectively increases cooling capacity, reduces exhaust temperature and power consumption, and improves the system's energy efficiency ratio through two-stage compression of the refrigerant gas.

[0016] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0017] Figure 1This is one of the structural schematic diagrams of the pump body structure according to an embodiment of the present utility model;

[0018] Figure 2 This is a second schematic diagram of the pump body structure according to an embodiment of the present utility model;

[0019] Figure 3 This is the third schematic diagram of the pump body structure according to an embodiment of the present utility model;

[0020] Figure 4 This is the fourth schematic diagram of the pump body structure according to an embodiment of the present utility model;

[0021] Figure 5 This is one of the structural schematic diagrams of the compressor according to an embodiment of the present utility model;

[0022] Figure 6 This is the second schematic diagram of the compressor structure according to an embodiment of the present utility model.

[0023] Explanation of reference numerals in the attached drawings: 10, primary compression section; 11, primary compression chamber; 12, primary intake passage; 13, make-up air passage; 14, primary exhaust port; 20, intermediate cooling section; 21, intermediate cooling chamber; 22, exhaust passage; 23, intermediate pipe; 24, intermediate passage; 30, secondary compression section; 31, secondary compression chamber; 32, secondary intake passage; 33, secondary exhaust port; 40, housing; 50, liquid reservoir; 51, intake pipe; 60, enthalpy-enhancing component; 61, make-up air pipe; 70, intermediate partition; 80, upper bearing section; 90, lower bearing section. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0026] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] Among related technologies, heat pump air conditioners are characterized by high efficiency, cleanliness, and zero pollution, resulting in significant market demand. In a heat pump system, the compressor is the core component, and its performance directly affects the system's heating efficiency and stability. Traditional heat pump compressors often employ a single-stage compression cycle; however, under low-temperature conditions, single-stage compression faces problems such as excessively high compression ratios and excessively high exhaust temperatures, leading to low system efficiency and unstable operation.

[0028] Therefore, this utility model provides a pump body structure, a compressor, and a heat pump system. According to the pump body structure, compressor, and heat pump system of this utility model, the cooling capacity can be effectively increased, the exhaust temperature and power consumption reduced, and the system's energy efficiency ratio improved through two-stage compression of the refrigerant gas.

[0029] Therefore, this utility model provides a pump body structure, a compressor, and a heat pump system. According to the pump body structure, compressor, and heat pump system of this utility model, the cooling capacity can be effectively increased, the exhaust temperature and power consumption reduced, and the system's energy efficiency ratio improved through two-stage compression of the refrigerant gas.

[0030] Please see Figures 1 to 6 The first aspect of this utility model provides a pump body structure, including a primary compression section 10, an intermediate cooling section 20, a secondary compression section 30, and an intermediate pipe 23. The primary compression section 10 has a primary compression chamber 11, the intermediate cooling section 20 has an intermediate cooling chamber 21, and the secondary compression section 30 has a secondary compression chamber 31. The primary compression section 10 has a primary air intake channel 12 and a supplementary air channel 13 respectively connected to the primary compression chamber 11. The primary compression chamber 11 has a primary exhaust port 14 connected to the intermediate cooling chamber 21. The intermediate cooling section 20 has an exhaust channel 22 connected to the intermediate cooling chamber 21, and the secondary compression section 30 has a secondary air intake channel 32 connected to the secondary compression chamber 31. The exhaust channel 22 and the secondary air intake channel 32 are connected by the intermediate pipe 23.

[0031] The secondary compression section 30 has a secondary exhaust port 33 that communicates with the secondary compression chamber 31; the intermediate cooling section 20 has an intermediate channel 24 that communicates with the intermediate cooling chamber 21 and the primary exhaust port 14.

[0032] Therefore, according to the pump body structure of this utility model embodiment, the cooling capacity of the system and the power consumption of the system can be effectively improved by adopting a two-stage compression method for the refrigerant gas. Specifically, the low-temperature and low-pressure refrigerant gas is compressed to a medium-pressure state by the primary compression section 10 and then transported to the intermediate cooling section 20. After the temperature of the medium-pressure refrigerant gas is reduced by the intermediate cooling section 20, the cooled medium-pressure refrigerant gas is transported to the secondary compression section 30 and further compressed to a high-pressure state before being discharged. In other words, by using primary compression, intermediate cooling and secondary compression, the single compression ratio of the system can be reduced, effectively improving the system's exhaust temperature and compressor power consumption, and the system's energy efficiency ratio is also improved.

[0033] Optionally, in some embodiments of this utility model, an intermediate cooling section 20 is disposed on one end face of the primary compression section 10, a middle partition plate 70 is disposed on the other end face of the primary compression section 10, and a secondary compression section 30 is disposed on the end face of the middle partition plate 70 away from the primary compression section 10. Further, in these embodiments, a lower bearing section 90 is disposed on the end face of the intermediate cooling section 20 away from the primary compression section 10, and an upper bearing section 80 is disposed on the end face of the secondary compression section 30 away from the middle partition plate 70.

[0034] Optionally, in some embodiments of this utility model, an air replenishment regulating valve is provided in the air replenishment channel 13 to control the opening and closing of the air replenishment channel 13. Further, in these embodiments, a temperature sensor, a pressure sensor, and a controller are also included. The temperature sensor measures the temperature of the primary intake channel 12 and transmits the measured temperature data to the controller. The pressure sensor measures the pressure of the primary intake channel 12 and transmits the measured pressure data to the controller. The controller is electrically connected to the air replenishment regulating valve.

[0035] The following is combined with Figures 1 to 6 The following is a detailed description of a specific embodiment of the pump body structure according to the present invention. It is worth understanding that the following is merely an exemplary description and should not be construed as limiting the present invention.

[0036] This embodiment provides a pump body structure, including a primary compression section 10, an intermediate cooling section 20, a secondary compression section 30, and an intermediate pipe 23. The primary compression section 10 has a primary compression chamber 11, the intermediate cooling section 20 has an intermediate cooling chamber 21, and the secondary compression section 30 has a secondary compression chamber 31. The primary compression section 10 has a primary air intake channel 12 and a supplementary air channel 13 respectively connected to the primary compression chamber 11. The primary compression chamber 11 has a primary exhaust port 14 connected to the intermediate cooling chamber 21. The intermediate cooling section 20 has an intermediate channel connecting the intermediate cooling chamber 21 and the primary exhaust port 14, and an exhaust channel 22 connected to the intermediate cooling chamber 21. The secondary compression section 30 has a secondary air intake channel 32 connected to the secondary compression chamber 31. The exhaust channel 22 and the secondary air intake channel 32 are connected by the intermediate pipe 23. The secondary compression section 30 has a secondary exhaust port 33 connected to the secondary compression chamber 31.

[0037] In this embodiment, an intermediate cooling section 20 is disposed on one end face of the primary compression section 10, a middle partition plate 70 is disposed on the other end face of the primary compression section 10, and a secondary compression section 30 is disposed on the end face of the middle partition plate 70 away from the primary compression section 10. Further, in these embodiments, a lower bearing section 90 is disposed on the end face of the intermediate cooling section 20 away from the primary compression section 10, and an upper bearing section 80 is disposed on the end face of the secondary compression section 30 away from the middle partition plate 70.

[0038] Furthermore, an air supply regulating valve is provided in the air supply channel 13 of this embodiment to control the opening and closing of the air supply channel 13. Further, in these embodiments, a temperature sensor, a pressure sensor, and a controller are also included. The temperature sensor measures the temperature of the primary intake channel 12 and transmits the measured temperature data to the controller. The pressure sensor measures the pressure of the primary intake channel 12 and transmits the measured pressure data to the controller. The controller is electrically connected to the air supply regulating valve.

[0039] Therefore, according to the pump body structure of this embodiment, the cooling capacity of the system and the power consumption of the system can be effectively improved by adopting a two-stage compression method for the refrigerant gas. Specifically, the low-temperature and low-pressure refrigerant gas is compressed to a medium-pressure state by the primary compression section 10 and then transported to the intermediate cooling section 20. After the temperature of the medium-pressure refrigerant gas is reduced by the intermediate cooling section 20, the cooled medium-pressure refrigerant gas is transported to the secondary compression section 30 and further compressed to a high-pressure state before being discharged. In other words, by using primary compression, intermediate cooling and secondary compression, the single compression ratio of the system can be reduced, effectively improving the system's exhaust temperature and compressor power consumption, and the system's energy efficiency ratio is also improved.

[0040] A second aspect of this utility model provides a compressor comprising the pump body structure described above, and further comprising a housing 40, a liquid receiver 50, and an enthalpy-enhancing component 60. The pump body structure is assembled inside the housing 40, while the liquid receiver 50 and the enthalpy-enhancing component 60 are respectively assembled outside the housing 40. The liquid receiver 50 is connected to a primary intake channel 12, and the enthalpy-enhancing component 60 is connected to a make-up gas channel 13. According to this utility model embodiment, the compressor can effectively increase the cooling capacity, reduce the exhaust temperature and power consumption, and improve the system's energy efficiency ratio by compressing the refrigerant gas in two stages.

[0041] In one implementation, an air inlet pipe 51 is provided between the liquid reservoir 50 and the primary air inlet channel 12, and an air replenishment pipe 61 is provided between the enthalpy enhancement component 60 and the air replenishment channel 13. The air replenishment pipe 61 is a copper pipe.

[0042] A third aspect of this utility model provides a heat pump system comprising the compressor described above. According to this utility model embodiment, the heat pump system effectively increases cooling capacity, reduces exhaust temperature and power consumption, and improves the system's energy efficiency ratio through two-stage compression of the refrigerant gas.

[0043] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the pump body structure, compressor, and heat pump system of this utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A pump body structure, used in a compressor, characterized in that: It includes a primary compression section, an intermediate cooling section, a secondary compression section, and an intermediate pipeline. The primary compression section has a primary compression chamber, the intermediate cooling section has an intermediate cooling chamber, and the secondary compression section has a secondary compression chamber. The primary compression section has a primary air intake channel and a replenishment channel that are respectively connected to the primary compression chamber. The primary compression chamber has a primary exhaust port that is connected to the intermediate cooling chamber. The intermediate cooling section has an exhaust channel that is connected to the intermediate cooling chamber. The secondary compression section has a secondary air intake channel that is connected to the secondary compression chamber. The exhaust channel and the secondary air intake channel are connected by the intermediate pipe.

2. The pump body structure according to claim 1, characterized in that: The secondary compression section has a secondary exhaust port that communicates with the secondary compression chamber.

3. The pump body structure according to claim 1, characterized in that: The intermediate cooling section is located on one end face of the primary compression section, and a partition plate is provided on the other end face of the primary compression section. The secondary compression section is located on the end face of the partition plate away from the primary compression section.

4. The pump body structure according to claim 3, characterized in that: The intermediate cooling section has a lower bearing portion on its end face away from the primary compression section, and the secondary compression section has an upper bearing portion on its end face away from the intermediate partition.

5. The pump body structure according to claim 1, characterized in that: The intermediate cooling section has an intermediate channel connecting the intermediate cooling chamber and the primary exhaust port.

6. The pump body structure according to claim 1, characterized in that: The gas supply channel is equipped with a gas supply regulating valve, which is used to control the opening and closing of the gas supply channel.

7. The pump body structure according to claim 6, characterized in that: It also includes a temperature sensor, a pressure sensor, and a controller. The temperature sensor is used to measure the temperature of the first-stage air intake channel and transmit the measured temperature data to the controller. The pressure sensor is used to measure the pressure of the first-stage air intake channel and transmit the measured pressure data to the controller. The controller is electrically connected to the air replenishment regulating valve.

8. A compressor, characterized in that: The pump body structure according to any one of claims 1 to 7 further includes a housing, a liquid reservoir, and an enthalpy-enhancing component. The pump body structure is assembled inside the housing, the liquid reservoir and the enthalpy-enhancing component are respectively assembled outside the housing, and the liquid reservoir is connected to the primary air intake channel, and the enthalpy-enhancing component is connected to the supplementary air channel.

9. The compressor according to claim 8, characterized in that: An air intake pipe is provided between the liquid reservoir and the primary air intake channel, and an air replenishment pipe is provided between the enthalpy-increasing component and the air replenishment channel. The air replenishment pipe is a copper pipe.

10. A heat pump system, characterized in that: Includes the compressor as described in claim 8 or 9.

Images