Air source heat pump unit

Abstract

The utility model provides an air source heat pump unit. A first output end of a plate heat exchanger conveys a refrigerant to an input end of a compressor through a fourth refrigerant pipe. And the second output end of the plate heat exchanger conveys the refrigerant to the filter through a fifth refrigerant pipe, and the refrigerant is filtered by the filter. And the refrigerant is changed into a low-pressure and low-temperature state after passing through an expansion valve arranged on the sixth refrigerant pipe. The motor drives the fan blades to supply air to the evaporator, and a refrigerant entering the evaporator absorbs heat in outside air. The evaporator conveys refrigerants to the liquid separator through a seventh refrigerant pipe, and the refrigerants are conveyed to the input end of the compressor through an eighth refrigerant pipe. And the first output end of the plate heat exchanger conveys the refrigerant with the higher temperature to the input end of the compressor through a fourth refrigerant pipe, and the refrigerant is compressed by the compressor after being mixed with the low-temperature refrigerant conveyed to the compressor by the liquid separator. The enthalpy value of the refrigerant before compression is increased, the working intensity of the compressor is reduced, and the service life of the air source heat pump unit is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to air source heat pump field, in particular to air source heat pump unit. BACKGROUND

[0002] Air source heat pump is a kind of energy-saving device using high-level energy to make heat flow from low-level heat source air to high-level heat source.Air source heat pump is a form of heat pump.As its name implies, heat pump is just like pump, can convert the low-level heat energy, such as air, soil, water contained heat into usable high-level heat energy, so as to achieve the purpose of saving part of high-level energy, such as coal, gas, oil, electric energy, etc.Air as the low-level heat source of heat pump, it is inexhaustible, everywhere, can be obtained free of charge, and the installation and use of air source heat pump are relatively convenient.

[0003] However, the conventional air source heat pump, for example, the patent with application number CN202210374161.1 and the invention name of a kind of air source heat pump, volume is big, space utilization is lower, the working pressure of compressor is big, and the service life is lower. UTILITY MODEL CONTENT

[0004] Therefore, it is necessary to provide an air source heat pump unit to solve the technical problems of the conventional air source heat pump, such as large volume, low space utilization, large working pressure of compressor and low service life.

[0005] An air source heat pump unit, comprising: a unit shell, a heat exchange mechanism, a heat supply mechanism and a control mechanism; the heat exchange mechanism is accommodated in the unit shell;

[0006] The heat supply mechanism comprises a heat supply component, a preheating component and a heat absorption component; the heat supply component comprises a compressor, a first refrigerant pipe, a high-efficiency tank heat exchanger, a second refrigerant pipe, a liquid storage tank and a third refrigerant pipe; the output end of the compressor is in communication with the refrigerant input end of the high-efficiency tank heat exchanger through the first refrigerant pipe; the refrigerant output end of the high-efficiency tank heat exchanger is in communication with the input end of the liquid storage tank through the second refrigerant pipe; the preheating component comprises a plate heat exchanger, a fourth refrigerant pipe, a fifth refrigerant pipe, a filter and a sixth refrigerant pipe; the output end of the liquid storage tank is in communication with the input end of the plate heat exchanger through the third refrigerant pipe; the first output end of the plate heat exchanger is in communication with the input end of the compressor through the fourth refrigerant pipe; the second output end of the plate heat exchanger is in communication with the input end of the filter through the fifth refrigerant pipe; the sixth refrigerant pipe is provided with a one-way valve and an expansion valve; the heat absorption component comprises an evaporator, a seventh refrigerant pipe, a distributor and an eighth refrigerant pipe; the output end of the filter is in communication with the refrigerant input end of the evaporator through the sixth refrigerant pipe, and the refrigerant output end of the evaporator is in communication with the input end of the distributor through the seventh refrigerant pipe; the output end of the distributor is in communication with the input end of the compressor through the eighth refrigerant pipe.

[0007] The heat supply mechanism comprises a motor and a fan blade, the motor is connected with the unit shell; the motor is drivingly connected with the fan blade, and the motor drives the fan blade to supply air to the evaporator.

[0008] The compressor and the motor are electrically connected with the control mechanism.

[0009] In one of the embodiments, the heat supply component further comprises a noise reduction cover, the noise reduction cover covers the compressor, and the inner wall of the noise reduction cover is provided with soundproof cotton.

[0010] In one of the embodiments, the bottom of the unit shell is provided with a detachable water collecting tray, the water collecting tray is provided with an electric heating rod, and the electric heating rod is electrically connected with the control mechanism.

[0011] In one of the embodiments, the air source heat pump unit comprises two heat supply mechanisms.

[0012] In one of the embodiments, the bottom of the unit shell is uniformly provided with a plurality of supporting feet.

[0013] In one of the embodiments, each of the supporting feet is integrally formed with the unit shell.

[0014] In one of the embodiments, the bottom of the supporting foot is provided with an anti-skid pad.

[0015] In one of the embodiments, the anti-skid pad is a soft rubber pad.

[0016] In one embodiment, the non-slip mat is a soft silica gel mat.

[0017] In one embodiment, the non-slip mat is provided with non-slip lines.

[0018] The air source heat pump unit in the working process, the compressor will high temperature and high pressure refrigerant through the first refrigerant pipe to high efficiency tank heat exchanger. High temperature and high pressure refrigerant through high efficiency tank heat exchanger, the cold water in the high efficiency tank heat exchanger is heated into hot water. The refrigerant comes out of the high efficiency tank heat exchanger, through the second refrigerant pipe to the storage tank. The storage tank transmits the refrigerant to the plate heat exchanger through the third refrigerant pipe. The first output end of the plate heat exchanger transmits the refrigerant to the input end of the compressor through the fourth refrigerant pipe. The second output end of the plate heat exchanger transmits the refrigerant to the filter through the fifth refrigerant pipe, and the filtered refrigerant is transmitted to the evaporator through the sixth refrigerant pipe. The one-way valve provided on the sixth refrigerant pipe can ensure the one-way flow of the refrigerant. The refrigerant becomes low pressure and low temperature after passing through the expansion valve provided on the sixth refrigerant pipe. The motor drives the fan blade to supply air to the evaporator, and the refrigerant entering the evaporator absorbs the heat in the external air. The evaporator transmits the refrigerant to the distributor through the seventh refrigerant pipe, and the refrigerant is separated into gas and liquid in the distributor, and then transmitted to the input end of the compressor through the eighth refrigerant pipe. Cycle. It should be noted that the first output end of the plate heat exchanger transmits the refrigerant with higher temperature to the input end of the compressor, and the low temperature refrigerant transmitted from the distributor to the compressor is mixed, and then compressed by the compressor. The enthalpy of the refrigerant before compression is increased, the working strength of the compressor is reduced, and the service life of the air source heat pump unit is increased. The air source heat pump unit has compact structure and long service life. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a structural schematic diagram of the air source heat pump unit in one embodiment;

[0020] Fig. 2 It is a structural schematic diagram of the air source heat pump unit in one embodiment;

[0021] Fig. 3 It is a structural schematic diagram of the air source heat pump unit in one embodiment;

[0022] Fig. 4 It is a working principle diagram of the air source heat pump unit in one embodiment. DETAILED DESCRIPTION

[0023] In order to make the above objects, characteristics and advantages of the present application more apparent, concrete embodiments of the present application will be described in detail below with reference to the drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application, however, can be practiced in a variety of ways beyond the specific embodiments described herein without departing from the scope of the present application. It can be understood that the present application will not be limited by the following disclosed embodiments. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely used for the purpose of facilitating the description of the present application and simplifying the description, and therefore should not be construed to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.

[0024] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0025] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] In the present application, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0027] It is to be understood that when an element such as a layer, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. It will be understood that, when a member is referred to as being "coupled" or "connected" to another member, it can be directly coupled or connected to the other member or intervening members can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0028] Referring to the drawings Figs. 1 to 4 The utility model provides a kind of air source heat pump unit 10, the air source heat pump unit 10 includes: unit shell 100, heat exchange mechanism 200, heat supply mechanism 300 and control mechanism 400. Heat exchange mechanism 200 is housed in unit shell 100.

[0029] Heat exchange mechanism 200 includes heat supply assembly 210, preheating assembly 220 and heat absorption assembly 230. Heat supply assembly 210 includes compressor 211, first refrigerant pipe 212, high-efficiency tank heat exchanger 213, second refrigerant pipe 214, liquid storage tank 215 and third refrigerant pipe 216. The output end of compressor 211 is communicated with the refrigerant input end of high-efficiency tank heat exchanger 213 by first refrigerant pipe 212. The refrigerant output end of high-efficiency tank heat exchanger 213 is communicated with the input end of liquid storage tank 215 by second refrigerant pipe 214. Preheating assembly 220 includes plate heat exchanger 221, fourth refrigerant pipe 222, fifth refrigerant pipe 223, filter 224 and sixth refrigerant pipe 225. The output end of liquid storage tank 215 is communicated with the input end of plate heat exchanger 221 by third refrigerant pipe 216. The first output end of plate heat exchanger 221 is communicated with the input end of compressor 211 by fourth refrigerant pipe 222. The second output end of plate heat exchanger 221 is communicated with the input end of filter 224 by fifth refrigerant pipe 223. One-way valve 226 and expansion valve 227 are arranged on sixth refrigerant pipe 225. Heat absorption assembly 230 includes evaporator 231, seventh refrigerant pipe 232, distributor 233 and eighth refrigerant pipe 234. The output end of filter 224 is communicated with the refrigerant input end of evaporator 231 by sixth refrigerant pipe 225, and the refrigerant output end of evaporator 231 is communicated with the input end of distributor 233 by seventh refrigerant pipe 232. The output end of distributor 233 is communicated with the input end of compressor 211 by eighth refrigerant pipe 234.

[0030] In the embodiment, the air source heat pump unit 10 includes two heat supply mechanisms 300. The heat supply mechanism 300 includes motor 310 and fan blade 320, and the motor 310 is connected with the unit shell 100. The motor 310 is drivingly connected with the fan blade 320, and the motor 310 drives the fan blade 320 to supply air to the evaporator 231.

[0031] The compressor 211 and the motor 310 are electrically connected with the control mechanism 400. It should be noted that in the embodiment, the control mechanism 400 is a lower computer, specifically, the control mechanism 400 is a PLC. In another embodiment, the control mechanism 400 is a single-chip microcomputer. In other embodiments, the control mechanism 400 includes an upper computer and a lower computer, and the upper computer is electrically connected with the lower computer. The control mechanism 400 can control the compressor 211 and the motor 310 to work coordinately, so as to increase the structural strength and the structural stability of the air source heat pump unit 10.

[0032] In order to reduce the noise generated by the air source heat pump unit 10 during the working process, in one of the embodiments, the heat supply assembly 210 further comprises a noise reduction cover 217, the noise reduction cover 217 covers the compressor 211, and the inner wall of the noise reduction cover 217 is provided with sound insulation cotton. The sound insulation cotton provided on the inner wall of the noise reduction cover 217 can effectively absorb and reduce the noise generated by the compressor 211 during the working process. In this way, the sound insulation cotton provided on the inner wall of the noise reduction cover 217 can reduce the noise generated by the air source heat pump unit 10 during the working process.

[0033] In a low-temperature winter environment, in order to avoid the condensate water generated by the air source heat pump unit 10 during the working process from freezing and affecting the normal working of the air source heat pump unit 10. In one of the embodiments, the bottom of the unit shell 100 is provided with a detachable water collecting tray 110, and the water collecting tray 110 is provided with an electric heating rod (not shown in the figure), and the electric heating rod is electrically connected with the control mechanism 400. The electric heating rod is powered to heat the water in the water collecting tray 110, so as to avoid the freezing of the water in the water collecting tray 110 and affect the normal working of the air source heat pump unit 10.

[0034] In order to increase the support stability of the air source heat pump unit 10, in one of the embodiments, the bottom of the unit shell 100 is uniformly provided with a plurality of supporting feet 120. In the embodiment, each supporting foot 120 is integrally formed with the unit shell 100, so as to increase the structural strength and the structural stability of the unit shell 100. In one of the embodiments, the bottom of the supporting foot 120 is provided with an anti-skid pad, so as to increase the anti-skid performance of the supporting foot 120. In the embodiment, the anti-skid pad is a soft rubber pad, which has certain elasticity, good toughness and excellent anti-skid performance. In another embodiment, the anti-skid pad is a soft silica gel pad. In yet another embodiment, the anti-skid pad is provided with anti-skid lines. In this way, the support stability of the air source heat pump unit 10 is increased.

[0035] In the working process of the air source heat pump unit 10, the compressor 211 delivers high-temperature and high-pressure refrigerant to the high-efficiency tank heat exchanger 213 through the first refrigerant pipe 212. When the high-temperature and high-pressure refrigerant passes through the high-efficiency tank heat exchanger 213, the cold water in the high-efficiency tank heat exchanger 213 is heated into hot water. After the refrigerant comes out of the high-efficiency tank heat exchanger 213, it is delivered to the liquid storage tank 215 through the second refrigerant pipe 214. The liquid storage tank 215 delivers the refrigerant to the plate heat exchanger 221 through the third refrigerant pipe 216. The first output end of the plate heat exchanger 221 delivers the refrigerant to the input end of the compressor 211 through the fourth refrigerant pipe 222. The second output end of the plate heat exchanger 221 delivers the refrigerant to the filter 224 through the fifth refrigerant pipe 223, and after being filtered through the filter 224. The filter 224 delivers the refrigerant to the evaporator 231 through the sixth refrigerant pipe 225. The one-way valve 226 arranged on the sixth refrigerant pipe 225 can ensure the one-way flow of the refrigerant. After the refrigerant passes through the expansion valve 227 arranged on the sixth refrigerant pipe 225, it becomes a low-pressure and low-temperature state. The motor 310 drives the fan blade 320 to supply air to the evaporator 231, and the refrigerant entering the evaporator 231 absorbs the heat in the external air. The evaporator 231 delivers the refrigerant to the distributor 233 through the seventh refrigerant pipe 232. After the refrigerant is separated into gas and liquid in the distributor 233, it is delivered to the input end of the compressor 211 through the eighth refrigerant pipe 234. The cycle works in this way. It should be noted that the first output end of the plate heat exchanger 221 delivers the refrigerant with a higher temperature to the input end of the compressor 211 through the fourth refrigerant pipe 222. After the low-temperature refrigerant delivered by the distributor 233 to the compressor 211 is mixed, it is compressed by the compressor 211 again. This improves the enthalpy value of the refrigerant before compression, reduces the working strength of the compressor 211, and increases the service life of the air source heat pump unit 10. The air source heat pump unit 10 has a compact structure and a long service life.

[0036] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0037] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An air source heat pump unit, characterized by, The air source heat pump unit comprises a unit shell, a heat exchange mechanism, a heat supply mechanism and a control mechanism; the heat exchange mechanism is accommodated in the unit shell; The heat exchange mechanism comprises a heat supply assembly, a preheating assembly and a heat absorption assembly; the heat supply assembly comprises a compressor, a first refrigerant pipe, a high-efficiency tank heat exchanger, a second refrigerant pipe, a liquid storage tank and a third refrigerant pipe; the output end of the compressor is in communication with the refrigerant input end of the high-efficiency tank heat exchanger through the first refrigerant pipe; the refrigerant output end of the high-efficiency tank heat exchanger is in communication with the input end of the liquid storage tank through the second refrigerant pipe; the preheating assembly comprises a plate heat exchanger, a fourth refrigerant pipe, a fifth refrigerant pipe, a filter and a sixth refrigerant pipe; the output end of the liquid storage tank is in communication with the input end of the plate heat exchanger through the third refrigerant pipe; the first output end of the plate heat exchanger is in communication with the input end of the compressor through the fourth refrigerant pipe; the second output end of the plate heat exchanger is in communication with the input end of the filter through the fifth refrigerant pipe; the sixth refrigerant pipe is provided with a one-way valve and an expansion valve; the heat absorption assembly comprises an evaporator, a seventh refrigerant pipe, a distributor and an eighth refrigerant pipe; the output end of the filter is in communication with the refrigerant input end of the evaporator through the sixth refrigerant pipe, and the refrigerant output end of the evaporator is in communication with the input end of the distributor through the seventh refrigerant pipe; the output end of the distributor is in communication with the input end of the compressor through the eighth refrigerant pipe; The heat supply mechanism comprises a motor and a fan blade, the motor is connected with the unit shell; the motor is drivingly connected with the fan blade, and the motor drives the fan blade to supply air to the evaporator; The compressor and the motor are electrically connected with the control mechanism. The heat supply assembly further comprises a noise reduction cover, the noise reduction cover covers the compressor, and the inner wall of the noise reduction cover is provided with sound insulation cotton.

2. The air source heat pump unit of claim 1, wherein, The bottom of the unit shell is provided with a detachable water collecting tray, the water collecting tray is provided with an electric heating rod, and the electric heating rod is electrically connected with the control mechanism.

3. The air source heat pump unit of claim 1, wherein, The air source heat pump unit comprises two heat supply mechanisms.

4. The air source heat pump unit of claim 1, wherein, The bottom of the unit shell is uniformly provided with a plurality of supporting feet.

5. The air source heat pump package of claim 1, wherein, Each supporting foot is integrally formed with the unit shell.

6. The air source heat pump unit of claim 5, wherein, The bottom of the supporting foot is provided with an anti-skid pad.

7. The air source heat pump unit of claim 5, wherein, The anti-skid pad is a soft rubber pad.

8. The air source heat pump unit of claim 7, wherein, The anti-skid pad is a soft silica gel pad.

9. The air source heat pump unit of claim 7, wherein, The anti-skid pad is provided with anti-skid lines.

10. The air source heat pump unit of claim 7, wherein, ​

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