Fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system

Abstract

The invention discloses a fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system, which relates to the technical field of heat pump air conditioners, and comprises an outdoor unit part, an indoor unit part, a ground radiation unit, a wall surface radiation unit and a shed surface radiation unit, refrigerant inflow pipelines of the ground radiation unit, the wall surface radiation unit and the shed surface radiation unit are communicated with a refrigerant supply pipeline of an indoor heat exchanger of the indoor unit part, refrigerant outflow pipelines are communicated with a refrigerant discharge pipeline of the indoor heat exchanger of the indoor unit part, and valve bodies are arranged on the refrigerant inflow pipelines and / or the refrigerant outflow pipelines; under the refrigeration working condition, the valve body is used for closing the refrigerant entering the ground radiation unit, the wall surface radiation unit and the shed surface radiation unit and / or performing micro-adjustment control under different conditions, so that the temperature of the radiation surface of the radiation unit is lower than the indoor temperature but higher than the dew point temperature, the room temperature is reduced, and dew formation is avoided; and the indoor environment comfort, the refrigeration effect and the user experience are improved.

Description

Technical Field

[0001] The invention relates to the technical field of heat pump air conditioners, and in particular to a fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system. Background Art

[0002] With the improvement of people's living standards, comfortable home is no longer a simple concept, but has gradually become the mainstream of modern architecture, and the "Five Constant" system plays a leading role in comfortable home.

[0003] The five constants refer to constant temperature, constant humidity, constant oxygen, constant quietness and constant cleanliness. The realization of the five constants is inseparable from the air conditioner (air conditioning). "Constant temperature" requires heating and cooling, and "constant humidity" requires humidification and dehumidification. With the development of heat pump air-conditioning technology in my country, various types of heat pump air-conditioning such as heaven-water-ground-fluorine, heaven-fluorine-ground-water, and heaven-fluorine-ground-fluorine have entered people's lives. Among them, heaven-fluorine-ground-fluorine heat pump air-conditioning mainly uses radiation heat exchange and there is no secondary heat exchange between fluorine and water. The heat is directly exchanged between the fluorine pipeline and the indoor building envelope structure, which has the advantages of low energy consumption and high energy efficiency.

[0004] However, the current natural and ground-fluorine heat pump air conditioners have the following problems: during the refrigeration process, since the outlet (evaporation) temperature of the fluorine system outdoor unit is generally around 4°C, which is much lower than the dew point temperature, the pipes of the fluorine system (exposed to the air) are very prone to condensation during refrigeration; when the pipe temperature of the fluorine system is reflected on the radiation surface of the radiation system unit (the pipes are buried in the ground, walls, and ceilings through radiation panels), the radiation surface temperature is lower than the dew point temperature, and condensation will also occur.

[0005] Therefore, people are in urgent need of a fluorine system heat pump air conditioning radiation pipeline temperature refrigerant control system that can avoid condensation. Summary of the invention

[0006] The object of the present invention is to provide a fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system to solve the problems existing in the above-mentioned prior art. By setting a variety of valves, the amount of refrigerant entering the ground radiation unit, the wall radiation unit and the ceiling radiation unit during refrigeration is limited, thereby achieving the purpose of controlling the temperature in the radiation pipeline and the temperature transmitted to the indoor radiation surface through the radiation pipeline to make it higher than the dew point temperature and lower than the indoor temperature, thereby avoiding condensation.

[0007] To achieve the above-mentioned purpose, the present invention provides the following scheme: The present invention provides a fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system, comprising an outdoor unit part, an indoor unit part, a floor radiation unit, a wall radiation unit and a ceiling radiation unit, the refrigerant inlet pipeline of the floor radiation unit, the wall radiation unit and the ceiling radiation unit is connected with the refrigerant supply pipeline of the indoor heat exchanger of the indoor unit part, the refrigerant outflow pipeline of the floor radiation unit, the wall radiation unit and the ceiling radiation unit is connected with the refrigerant discharge pipeline of the indoor heat exchanger of the indoor unit part, the refrigerant inlet pipeline and / or the refrigerant outflow pipeline of the floor radiation unit, the wall radiation unit and the ceiling radiation unit are all provided with a valve body with adjustable flow rate.

[0008] Preferably, the indoor heat exchanger of the indoor unit part, the wall radiation unit, the ceiling radiation unit and the floor radiation unit are arranged in series or in parallel. When the indoor heat exchanger, the wall radiation unit, the ceiling radiation unit and the floor radiation unit are arranged in parallel, the wall radiation unit, the ceiling radiation unit and the floor radiation unit share the refrigerant inlet pipeline and the refrigerant outlet pipeline, and at least one valve body among all the valve bodies corresponding to the wall radiation unit, the ceiling radiation unit and the floor radiation unit is arranged on a branch pipeline connected to the shared refrigerant inlet pipeline or the shared refrigerant outlet pipeline.

[0009] Preferably, at least one valve body among all the valve bodies corresponding to the wall radiation unit, the ceiling radiation unit and the ground radiation unit is arranged on the common refrigerant inlet pipeline and / or the common refrigerant outlet pipeline.

[0010] Preferably, at least one valve body among all the valve bodies corresponding to the wall radiation unit, the ceiling radiation unit and the floor radiation unit is arranged on a branch pipeline of the common refrigerant inlet pipeline, and at least one valve body among all the valve bodies corresponding to the wall radiation unit, the ceiling radiation unit and the floor radiation unit is arranged on the common refrigerant outlet pipeline; at least one valve body among all the valve bodies corresponding to the wall radiation unit, the ceiling radiation unit and the floor radiation unit is arranged on a branch pipeline of the common refrigerant outlet pipeline, and at least one valve body among all the valve bodies corresponding to the wall radiation unit, the ceiling radiation unit and the floor radiation unit is arranged on the common refrigerant inlet pipeline.

[0011] Preferably, at least one valve body is arranged on the refrigerant inlet pipeline and / or the refrigerant outflow pipeline of the wall radiation unit, the ceiling radiation unit and the ground radiation unit. When multiple valve bodies are arranged, the multiple valve bodies are arranged in series or in parallel; the valve body arranged on the refrigerant inlet pipeline is connected with the refrigerant inlet of the compressor of the outdoor unit part through an electric valve and a one-way valve on one side close to the wall radiation unit, the ceiling radiation unit or the ground radiation unit, and the pipeline disk between the electric valve and the one-way valve is arranged on the periphery of the compressor.

[0012] Preferably, when the floor radiation unit, the wall radiation unit and the ceiling radiation unit all have the valve body for individual control thereof, under cooling conditions, the amount of refrigerant circulating in the floor radiation unit is less than the amount of refrigerant circulating in the wall radiation unit and the ceiling radiation unit, the amount of refrigerant circulating in the floor radiation unit is not less than zero, and the amount of refrigerant circulating in the wall radiation unit is less than the amount of refrigerant circulating in the ceiling radiation unit; under heating conditions, the amount of refrigerant circulating in the floor radiation unit is greater than or equal to the amount of refrigerant circulating in the wall radiation unit, the amount of refrigerant circulating in the wall radiation unit is not less than the amount of refrigerant circulating in the ceiling radiation unit, and the amount of refrigerant circulating in the ceiling radiation unit is not less than zero.

[0013] Preferably, the wall radiation unit includes an upper half wall radiation unit and a lower half wall radiation unit distributed up and down, the upper half wall radiation unit and the lower half wall radiation unit respectively have a refrigerant inlet pipeline and a refrigerant outflow pipeline, and when the floor radiation unit, the wall radiation unit and the ceiling radiation unit all have the valve body for individual control thereof, under cooling conditions, the refrigerant flow rates of the ceiling radiation unit, the upper half wall radiation unit, the lower half wall radiation unit and the floor radiation unit decrease in sequence, and the amount of refrigerant flowing in the floor radiation unit is not less than zero; under heating conditions, the refrigerant flow rates of the ceiling radiation unit, the upper half wall radiation unit, the lower half wall radiation unit and the floor radiation unit increase in sequence, and the amount of refrigerant flowing in the ceiling radiation unit is not less than zero.

[0014] Preferably, the valve body is a controllable electronic expansion valve, solenoid valve or mechanical valve.

[0015] Preferably, the outdoor unit part includes a compressor, a four-way valve, an outdoor heat exchanger and a throttling component, and the indoor unit part includes an indoor heat exchanger, a floor radiation unit, a wall radiation unit, a ceiling radiation unit and a gas circulation fan. The outlet of the compressor, the inlet of the compressor, a port of the outdoor heat exchanger and a port of the indoor heat exchanger are respectively connected to the four ports of the four-way valve for switching the direction of the fluid working medium. The outdoor heat exchanger and the port of the indoor heat exchanger that is not directly connected to the four-way valve are connected to each other, and the throttling component is provided on the connecting pipeline. The indoor heat exchanger is located on the circulating air path of the gas circulation fan. A water receiving trough is provided under the indoor heat exchanger, and the water receiving trough is connected to a drainage pipe connected to the outside.

[0016] Preferably, the refrigerant inlet pipes of the floor radiation unit, the wall radiation unit and the ceiling radiation unit are connected to the pipes between the indoor heat exchanger and the throttling component, and the pipe portions of the floor radiation unit, the wall radiation unit and the ceiling radiation unit are combined with heat-conducting plates to form easy-to-install radiation panels, and the radiation panels are combined with building envelope structures to form indoor building radiators.

[0017] Compared with the prior art, the present invention mainly achieves the following technical effects:

[0018] Under refrigeration conditions, the valve body is used to control the micro-flow refrigerant entering the floor radiation unit, wall radiation unit and ceiling radiation unit, so as to achieve "low gradient" temperature control of the floor radiation unit, wall radiation unit and ceiling radiation unit, so that the temperature reaching the radiation surface is higher than the dew point temperature but lower than the indoor temperature; while lowering the indoor temperature, condensation is avoided, thereby improving the indoor environmental comfort (approximately "five constants") and user experience; at the same time, when the floor radiation unit, wall radiation unit and ceiling radiation unit leak, the valve body can be closed to repair the leaking floor radiation unit, wall radiation unit or ceiling radiation unit. During the maintenance process, the refrigerant in the compressor and part of the refrigerant supply pipeline and the refrigerant discharge pipeline does not need to be discharged, thereby reducing the waste of refrigerant. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 This is a system diagram of a fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system in Example 1 of the present invention;

[0021] Figure 2 This is a system diagram of a fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system in Example 2 of the present invention;

[0022] Figure 3 This is a system diagram of a fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system in Example 3 of the present invention;

[0023] Figure 4 This is a system diagram of a fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system in the fourth embodiment of the present invention;

[0024] Figure 5 This is a system diagram of a fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system in Embodiment 5 of the present invention;

[0025] Figure 6 This is a system diagram of a fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system in Example 6 of the present invention;

[0026] Figure 7 This is a system diagram of a fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system in Embodiment 7 of the present invention;

[0027] Figure 8 This is a system diagram of a fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system in Embodiment 8 of the present invention;

[0028] Among them, 1. compressor; 2. outdoor heat exchanger; 3. indoor heat exchanger; 4. throttling component; 5. four-way valve; 6. liquid stabilizing tank; 7. one-way valve; 8. valve body; 9. ground radiation unit; 10. wall radiation unit; 11. ceiling radiation unit; 12. valve. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The purpose of the present invention is to provide a fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system to solve the problems existing in the prior art. By setting valves, the amount of refrigerant entering the ground radiation unit, the wall radiation unit and the ceiling radiation unit during refrigeration is limited, thereby achieving the purpose of controlling the temperature in the radiation pipeline and the temperature transmitted to the indoor radiation surface through the radiation pipeline to make it higher than the dew point temperature and lower than the indoor temperature, thereby avoiding condensation.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Embodiment 1:

[0033] Please refer to Figure 1As shown, a fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system is provided, including an outdoor unit part, an indoor unit part, a ground radiation unit 9, a wall radiation unit 10 and a ceiling radiation unit 11, the ground radiation unit 9 includes a corresponding pipeline with refrigerant flowing and a ground radiation panel embedded in the pipeline, the wall radiation unit 10 includes a corresponding pipeline with refrigerant flowing and a wall radiation panel embedded in the pipeline, the ceiling radiation unit 11 includes a corresponding pipeline with refrigerant flowing and a ceiling radiation panel embedded in the pipeline, the ground radiation panel is buried in the ground and / or laid on the ground (superimposed or overlapped with the floor as a whole), the wall radiation panel is buried in the wall and / or laid on the wall (superimposed or overlapped with the wall panel as a whole), and the ceiling radiation panel is buried It is arranged in the ceiling. In this embodiment, the three form a whole-house (ground, ceiling and at least one wall) enclosing structure. In other embodiments, at least one radiation unit can be selected for installation according to the on-site conditions; the refrigerant inlet pipeline of the ground radiation unit 9, the wall radiation unit 10 and the ceiling radiation unit 11 is connected to the refrigerant supply pipeline of the indoor heat exchanger 3 of the indoor unit part, and the refrigerant outflow pipeline of the ground radiation unit 9, the wall radiation unit 10 and the ceiling radiation unit 11 is connected to the refrigerant discharge pipeline of the indoor heat exchanger 3 of the indoor unit part. The refrigerant inlet pipeline and / or the refrigerant outflow pipeline of the ground radiation unit 9, the wall radiation unit 10 and the ceiling radiation unit 11 are all provided with a valve body 8. The ground radiation unit 9, At least one valve body 8 is arranged on the refrigerant flow path (including the refrigerant outflow pipeline and the refrigerant inflow pipeline) of the wall radiation unit 10 and the ceiling radiation unit 11. The valve body 8 can select an electronic expansion valve or a solenoid valve or a mechanical valve with high precision and micro-control for high-precision micro-regulation, or select a valve body 8 with a leakage value. The working principle of this system is: under the refrigeration condition, the valve body 8 is used to control the amount of refrigerant entering the ground radiation unit 9, the wall radiation unit 10 and the ceiling radiation unit 11 (the high-precision valve body 8 is controlled by micro-adjustment, the valve body 8 with a leakage value can be in a normally closed state, and the refrigerant is transported by using its leakage value, and the temperature sensor is used to detect each radiation unit in real time When the temperature of the pipeline of the element or the radiation surface temperature of the corresponding radiation plate is high due to the leakage value alone and the purpose of cooling cannot be achieved, the temperature of the radiation surface can be reduced by opening the valve body 8 at regular intervals to increase the amount of refrigerant in each radiation unit). This can control the temperature of the ground radiation unit 9, the wall radiation unit 10 and the ceiling radiation unit 11, so that the indoor radiation surface temperature is higher than the dew point temperature but lower than the indoor temperature. While reducing the indoor temperature, condensation is avoided, and the indoor environmental comfort (similar to "five constants") and user experience are improved. Under heating conditions, the valve body 8 is in a normally open state, and the opening of the valve body 8 is controlled by the control system to control the amount of refrigerant in each radiation unit, thereby controlling its temperature.When the floor radiation unit 9, the wall radiation unit 10 and the ceiling radiation unit 11 leak, the leaking floor radiation unit 9, the wall radiation unit 10 or the ceiling radiation unit 11 can be repaired by closing the valve body 8. During the repair process, the refrigerant in the compressor 1 and part of the refrigerant supply pipeline and the refrigerant discharge pipeline does not need to be discharged, thereby reducing the waste of refrigerant. ;

[0034] The indoor heat exchanger 3, the wall radiation unit 10, the ceiling radiation unit 11 and the ground radiation unit 9 of the indoor unit part can be arranged in series or in parallel to achieve more temperature change ranges in a more reasonable manner.

[0035] When arranged in parallel, the valve body 8 and the pipeline layout of each radiation unit can be: a common refrigerant inlet pipeline and a refrigerant outlet pipeline of the wall radiation unit 10, the ceiling radiation unit 11 and the ground radiation unit 9, and the valve body 8 of the corresponding radiation unit is arranged on the common refrigerant inlet pipeline or the refrigerant outlet pipeline, or is arranged on a branch pipeline connected to the common refrigerant inlet pipeline or the refrigerant outlet pipeline. By sharing the pipeline, the arrangement of pipelines is reduced and the cost is saved. At least one valve body 8 of all the valve bodies 8 of the corresponding wall radiation unit 10, the ceiling radiation unit 11 and the ground radiation unit 9 is arranged on a branch pipeline connected to the common refrigerant inlet pipeline or the common refrigerant outlet pipeline.

[0036] When the floor radiation unit 9 has a valve body 8 for individual control thereof, under cooling conditions, the amount of refrigerant circulating in the floor radiation unit 9 is less than the amount of refrigerant circulating in the wall radiation unit 10 and the ceiling radiation unit 11, and the amount of refrigerant circulating in a single floor radiation unit may be zero; when both the wall radiation unit 10 and the ceiling radiation unit 11 have a valve body 8 for individual control thereof, under heating conditions, the amount of refrigerant circulating in the floor radiation unit 9 is greater than the amount of refrigerant circulating in the wall radiation unit 10, and the amount of refrigerant circulating in the wall radiation unit 10 is not less than the amount of refrigerant circulating in the ceiling radiation unit 11; the above method can realize a gradient mode of indoor temperature from bottom to top, with high temperature at the bottom and low temperature at the top, so as to adapt to the comfortable feeling of cool head and hot feet of the human body.

[0037] Furthermore, the wall radiation unit 10 includes an upper half wall radiation unit 10 and a lower half wall radiation unit 10 distributed up and down, and the upper half wall radiation unit 10 and the lower half wall radiation unit 10 respectively have a refrigerant inlet pipeline and a refrigerant outflow pipeline. When the floor radiation unit 9, the wall radiation unit 10 and the ceiling radiation unit 11 all have a valve body 8 for individual control thereof, under cooling conditions, the refrigerant amounts of the ceiling radiation unit 11, the upper half wall radiation unit 10, the lower half wall radiation unit 10 and the floor radiation unit 9 decrease successively, and the refrigerant amount of the floor radiation unit 9 can be zero; under heating conditions, the refrigerant amounts of the ceiling radiation unit 11, the upper half wall radiation unit 10, the lower half wall radiation unit 10 and the floor radiation unit 9 increase successively, and the refrigerant amount of the ceiling radiation unit 11 can be zero.

[0038] The valve body 8 for performing the individual control mentioned above mainly refers to the valve body 8 provided on the non-shared refrigerant inlet / outlet pipeline (branch pipeline connected to the shared refrigerant inlet / outlet pipeline) of the corresponding radiation unit.

[0039] The outdoor unit part includes a compressor 1, a four-way valve 5, an outdoor heat exchanger 2 and a throttling component 4, and the indoor unit part includes an indoor heat exchanger 3, a ground radiation unit 9, a wall radiation unit 10, a ceiling radiation unit 11 and a gas circulation fan. The outlet of the compressor 1, the inlet of the compressor 1, a port of the outdoor heat exchanger 2 and a port of the indoor heat exchanger 3 are respectively connected to the four ports of the four-way valve 5 for switching the direction of the fluid working medium. The ports of the outdoor heat exchanger 2 and the indoor heat exchanger 3 that are not directly connected to the four-way valve 5 are interconnected, and a throttling component 4 is arranged on the connecting pipeline. The indoor heat exchanger 3 is located on the circulating air path of the gas circulation fan. A water receiving trough is arranged below the indoor heat exchanger 3, and the water receiving trough is connected to the drainage pipe connected to the outside. Under the refrigeration condition, the refrigerant at the indoor heat exchanger 3 of the indoor unit part evaporates and absorbs heat to condense the moisture in the air, and the condensed water is discharged through the water outlet trough to achieve the dehumidification effect.

[0040] The outdoor heat exchanger 2 can be a mixture of one or more of air cooling, water cooling, soil cooling or radiation cooling.

[0041] The refrigerant inlet pipelines of the floor radiation unit 9 , the wall radiation unit 10 and the ceiling radiation unit 11 are connected to the refrigerant flow pipeline between the indoor heat exchanger 3 and the throttling component 4 .

[0042] A liquid stabilizing tank 6 is provided at the front end of the air inlet of the compressor 1 to stabilize the flow. A gas-liquid separator may also be provided in front of the air inlet of the compressor 1 to separate the gas and liquid.

[0043] The individual radiation units may exist together or in multiple combinations as distributed radiation parts in the system.

[0044] A one-way flow valve may be installed at the front end of the indoor heat exchanger 3 to control the flow of refrigerant when heating.

[0045] In this embodiment, the wall radiation unit 10, the ceiling radiation unit 11 and the floor radiation unit 9 share a refrigerant inlet pipeline and a refrigerant outflow pipeline, and a valve body 8 is provided on the shared refrigerant inlet pipeline.

[0046] Embodiment 2:

[0047] Please refer to Figure 2 As described above, the present embodiment is different from the first embodiment in that the wall radiation unit 10, the ceiling radiation unit 11 and the floor radiation unit 9 share a refrigerant inlet pipeline and a refrigerant outlet pipeline, a valve body 8 is provided on the shared refrigerant inlet pipeline, and a valve body 8 is provided on the branch pipeline connecting the floor radiation unit 9 and the shared refrigerant outlet pipeline.

[0048] Embodiment three:

[0049] Please refer to Figure 3 As described above, the present embodiment is different from the first embodiment in that: the wall radiation unit 10, the ceiling radiation unit 11 and the floor radiation unit 9 share a refrigerant inlet pipeline and a refrigerant outlet pipeline, a valve body 8 is arranged on the refrigerant inlet pipeline shared by the wall radiation unit 10 and the ceiling radiation unit 11, a valve body 8 is arranged on the branch pipeline connecting the floor radiation unit 9 to the shared refrigerant inlet pipeline, and a valve body 8 is arranged on the branch pipeline connecting the floor radiation unit 9 to the shared refrigerant outlet pipeline.

[0050] Embodiment 4:

[0051] Please refer to Figure 4 As described above, the present embodiment is different from the first embodiment in that the wall radiation unit 10, the ceiling radiation unit 11 and the floor radiation unit 9 share a refrigerant inlet pipeline and a refrigerant outlet pipeline, and a valve body 8 is provided on the branch pipelines connecting the wall radiation unit 10, the ceiling radiation unit 11 and the floor radiation unit 9 to the shared refrigerant inlet pipeline, and a valve body 8 is provided on the shared refrigerant outlet pipeline.

[0052] Embodiment five:

[0053] Please refer to Figure 5As described above, the present embodiment is different from the first embodiment in that: the wall radiation unit 10, the ceiling radiation unit 11 and the floor radiation unit 9 share a refrigerant inlet pipeline and a refrigerant outlet pipeline, a valve body 8 is arranged on the refrigerant inlet pipeline shared by the wall radiation unit 10 and the ceiling radiation unit 11, a valve body 8 is arranged on the branch pipeline connected to the floor radiation unit 9 and the shared refrigerant inlet pipeline, a valve body 8 is arranged on the branch pipeline connected to the floor radiation unit 9 and the shared refrigerant outlet pipeline, and a valve body 8 is arranged on the branch pipeline connected to the ceiling radiation unit 11 and the shared refrigerant outlet pipeline.

[0054] Embodiment six:

[0055] Please refer to Figure 6 As described above, the present embodiment is different from the first embodiment in that the wall radiation unit 10, the ceiling radiation unit 11 and the floor radiation unit 9 share a refrigerant inlet pipeline and a refrigerant outlet pipeline, and a valve body 8 is provided on the branch pipelines connecting the wall radiation unit 10, the ceiling radiation unit 11 and the floor radiation unit 9 to the shared refrigerant inlet pipeline, and a valve body 8 is provided on the branch pipelines connecting the wall radiation unit 10 and the floor radiation unit 9 to the shared refrigerant outlet pipeline.

[0056] Embodiment seven:

[0057] Please refer to Figure 7 As described above, the present embodiment is different from the first embodiment in that the wall radiation unit 10, the ceiling radiation unit 11 and the floor radiation unit 9 share a refrigerant inlet pipeline and a refrigerant outlet pipeline, and a valve body 8 is provided on the branch pipelines connecting the wall radiation unit 10, the ceiling radiation unit 11 and the floor radiation unit 9 with the shared refrigerant inlet pipeline, and a valve body 8 is provided on the branch pipelines connecting the wall radiation unit 10, the ceiling radiation unit 11 and the floor radiation unit 9 with the shared refrigerant outlet pipeline.

[0058] Embodiment eight:

[0059] Please refer to Figure 8 As described, this embodiment adds the setting of valve 12 and one-way valve 7 on the basis of any one of embodiments one to seven. Specifically: the valve body 8 arranged on the refrigerant inlet pipeline is connected to the refrigerant inlet of the compressor 1 of the outdoor unit part through the valve 12 and the one-way valve 7 on the side close to the wall radiation unit 10, the ceiling radiation unit 11 or the ground radiation unit 9. The valve 12 can be an electric valve. The setting of the pipeline where the valve 12 and the one-way valve 7 are located can divert the refrigerant of the ground radiation unit 9, further reduce the amount of refrigerant entering the ground radiation unit, thereby improving the anti-condensation effect. The valve 12 is only opened under cooling conditions and is not opened under heating conditions.

[0060] The pipeline disc between the electric valve 12 and the one-way valve 7 is arranged at the periphery of the compressor 1, so that the diverted refrigerant flows through the periphery of the compressor 1. The cooling capacity of the refrigerant can be used to cool the compressor 1, thereby improving the energy efficiency ratio of the unit.

[0061] Adaptive changes made according to actual needs are all within the protection scope of the present invention.

[0062] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0063] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A fluorine system heat pump air conditioning radiation pipeline temperature refrigerant control system, characterized in that: It includes an outdoor unit part, an indoor unit part, a floor radiation unit, a wall radiation unit and a ceiling radiation unit. The refrigerant inlet pipes of the floor radiation unit, the wall radiation unit and the ceiling radiation unit are connected with the refrigerant supply pipes of the indoor heat exchanger of the indoor unit part. The refrigerant outlet pipes of the floor radiation unit, the wall radiation unit and the ceiling radiation unit are connected with the refrigerant discharge pipes of the indoor heat exchanger of the indoor unit part. The refrigerant inlet pipes and / or refrigerant outlet pipes of the floor radiation unit, the wall radiation unit and the ceiling radiation unit are all provided with valve bodies with adjustable flow rates.

2. The fluorine system heat pump air conditioning radiation pipeline temperature refrigerant control system according to claim 1, characterized in that: The indoor heat exchanger of the indoor unit part, the wall radiation unit, the ceiling radiation unit and the floor radiation unit are arranged in series or in parallel. When the indoor heat exchanger, the wall radiation unit, the ceiling radiation unit and the floor radiation unit are arranged in parallel, the wall radiation unit, the ceiling radiation unit and the floor radiation unit share the refrigerant inlet pipeline and the refrigerant outlet pipeline, and at least one valve body among all the valve bodies corresponding to the wall radiation unit, the ceiling radiation unit and the floor radiation unit is arranged on a branch pipeline connected to the shared refrigerant inlet pipeline or the shared refrigerant outlet pipeline.

3. The fluorine system heat pump air conditioning radiation pipeline temperature refrigerant control system according to claim 2, characterized in that: At least one valve body among all the valve bodies corresponding to the wall radiation unit, the ceiling radiation unit and the ground radiation unit is arranged on the common refrigerant inlet pipeline and / or the common refrigerant outlet pipeline.

4. The fluorine system heat pump air conditioning radiation pipeline temperature refrigerant control system according to claim 3, characterized in that: At least one valve body among all the valve bodies corresponding to the wall radiation unit, the ceiling radiation unit and the floor radiation unit is arranged on a branch pipeline of the common refrigerant inflow pipeline, and at least one valve body among all the valve bodies corresponding to the wall radiation unit, the ceiling radiation unit and the floor radiation unit is arranged on the common refrigerant outflow pipeline; At least one valve body among all the valve bodies corresponding to the wall radiation unit, the ceiling radiation unit and the floor radiation unit is arranged on a branch pipeline of the shared refrigerant outflow pipeline, and at least one valve body among all the valve bodies corresponding to the wall radiation unit, the ceiling radiation unit and the floor radiation unit is arranged on the shared refrigerant inflow pipeline.

5. The fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system according to claim 1, characterized in that: At least one valve body is arranged on the refrigerant inlet pipeline and / or the refrigerant outflow pipeline of the wall radiation unit, the ceiling radiation unit and the ground radiation unit. When multiple valve bodies are arranged, the multiple valve bodies are arranged in series or in parallel; the valve body arranged on the refrigerant inlet pipeline is connected to the refrigerant inlet of the compressor of the outdoor unit part through an electric valve and a one-way valve on one side close to the wall radiation unit, the ceiling radiation unit or the ground radiation unit, and the pipeline disk between the electric valve and the one-way valve is arranged on the periphery of the compressor.

6. The fluorine system heat pump air conditioning radiation pipeline temperature refrigerant control system according to claim 1, characterized in that: When the floor radiation unit, the wall radiation unit and the ceiling radiation unit all have the valve body for controlling them individually, under the refrigeration condition, the amount of refrigerant circulating in the floor radiation unit is less than the amount of refrigerant circulating in the wall radiation unit and the ceiling radiation unit, the amount of refrigerant circulating in the floor radiation unit is not less than zero, and the amount of refrigerant circulating in the wall radiation unit is less than the amount of refrigerant circulating in the ceiling radiation unit; Under heating conditions, the amount of refrigerant circulating in the floor radiation unit is greater than or equal to the amount of refrigerant circulating in the wall radiation unit, the amount of refrigerant circulating in the wall radiation unit is not less than the amount of refrigerant circulating in the ceiling radiation unit, and the amount of refrigerant circulating in the ceiling radiation unit is not less than zero.

7. The fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system according to claim 6, characterized in that: The wall radiation unit comprises an upper half wall radiation unit and a lower half wall radiation unit distributed up and down, the upper half wall radiation unit and the lower half wall radiation unit respectively have a refrigerant inlet pipeline and a refrigerant outflow pipeline, when the floor radiation unit, the wall radiation unit and the ceiling radiation unit all have the valve body for controlling them individually, under the refrigeration condition, the refrigerant flow rate of the ceiling radiation unit, the upper half wall radiation unit, the lower half wall radiation unit and the floor radiation unit decreases in sequence, and the refrigerant flow rate of the floor radiation unit is not less than zero; Under heating conditions, the refrigerant flow rates of the ceiling radiation unit, the upper wall radiation unit, the lower wall radiation unit and the ground radiation unit increase in sequence, and the refrigerant flow rate of the ceiling radiation unit is not less than zero.

8. The fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system according to claim 1, characterized in that: The valve body is a controllable electronic expansion valve, solenoid valve or mechanical valve.

9. The fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system according to claim 1, characterized in that: The outdoor unit part includes a compressor, a four-way valve, an outdoor heat exchanger and a throttling component, and the indoor unit part includes an indoor heat exchanger, a floor radiation unit, a wall radiation unit, a ceiling radiation unit and a gas circulation fan. The outlet of the compressor, the inlet of the compressor, a port of the outdoor heat exchanger and a port of the indoor heat exchanger are respectively connected to the four ports of the four-way valve for switching the direction of the fluid working medium. The outdoor heat exchanger and the port of the indoor heat exchanger that is not directly connected to the four-way valve are connected to each other, and the throttling component is arranged on the connecting pipeline. The indoor heat exchanger is located on the circulating air path of the gas circulation fan. A water receiving trough is arranged below the indoor heat exchanger, and the water receiving trough is connected to a drainage pipe connected to the outside.

10. The fluorine system heat pump air conditioner radiation pipeline temperature refrigerant control system according to claim 9, characterized in that: The refrigerant inflow pipelines of the floor radiation unit, the wall radiation unit and the ceiling radiation unit are connected to the pipelines between the indoor heat exchanger and the throttling component. The pipeline parts of the floor radiation unit, the wall radiation unit and the ceiling radiation unit are combined with heat-conducting plates to form easy-to-install radiation panels. The radiation panels are combined with building envelope structures to form indoor building radiators.

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