Four-system heat pump unit

Abstract

The utility model discloses a four-system heat pump unit which is composed of four sets of heat pump systems which are relatively independent and identical in structure and further comprises a bottom plate, the four sets of heat pump systems are divided into two sets and symmetrically arranged on the bottom plate, a middle partition plate is vertically installed on the bottom plate and arranged between the two sets of heat pump systems, and the heat pump systems are arranged in the middle of the bottom plate. The heat pump system comprises a fin heat exchanger and a draught fan, the fin heat exchanger is installed on the bottom plate, the draught fan is installed above the fin heat exchanger, and the fin heat exchanger is installed on the bottom plate. And the vertical projection area of the peripheral surface of the fan on the bottom plate is matched with the vertical projection area of the peripheral surface of the fin heat exchanger on the bottom plate. Four sets of heat pump systems form two sets of independent operation systems, meanwhile, it is guaranteed that the size of the draught fan is matched with the size of the fin heat exchanger, and the heat exchange efficiency is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of heat pump equipment, and in particular to a four-system heat pump unit. Background Art

[0002] A heat pump is an efficient and energy-saving device that fully utilizes low-grade thermal energy. Heat can be transferred spontaneously from a high-temperature object to a low-temperature object, but not spontaneously in the opposite direction. The working principle of a heat pump is a mechanical device that forces heat from a low-temperature object to a high-temperature object in a reverse cycle. It can effectively utilize low-grade thermal energy that is difficult to use to achieve energy conservation. Among the existing heat pump equipment, there are multi-system heat pump units. In a multi-system heat pump unit, since multiple heat pump systems are arranged, the mutual interference between the heat pump systems can easily lead to heat cross-talk, and the installation relationship between the fan and the fin heat exchanger is restricted, resulting in a mismatch in size between the fan and the fin heat exchanger, affecting the heat exchange efficiency of the heat pump system. Utility Model Content

[0003] The purpose of the embodiment of the present application is to provide a four-system heat pump unit, which optimizes the structure and principle so that the four heat pump systems are composed of two independently operating systems, while ensuring the size adaptation of the fan and the fin heat exchanger to ensure the heat exchange efficiency.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] On the one hand, a four-system heat pump unit is provided, which is composed of four sets of relatively independent and structurally identical heat pump systems, and also includes a base plate. The four sets of heat pump systems are divided into two groups and are symmetrically arranged on the base plate. A middle partition is vertically installed on the base plate, and the middle partition is arranged between the two sets of heat pump systems to isolate the two sets of heat pump systems so that they can work relatively independently. The heat pump system includes a fin heat exchanger and a fan. The fin heat exchanger is installed on the base plate, and the fan is installed above the fin heat exchanger. The vertical projection area of ​​the outer peripheral surface of the fan on the base plate is adapted to the vertical projection area of ​​the outer peripheral surface of the fin heat exchanger on the base plate.

[0006] Furthermore, the heat pump system comprises a fin pad, the fin pad is mounted on the base plate, and the fin heat exchanger is mounted on the fin pad.

[0007] Furthermore, a limiting structure is provided on the fin pad.

[0008] Furthermore, the limiting structure is a limiting groove or a limiting protrusion that cooperates with the fin heat exchanger to limit the position.

[0009] Furthermore, two sealing members are provided, which are respectively arranged at two ends of the middle partition plate and are respectively sealed and connected to two sets of heat pump systems.

[0010] Furthermore, the top of the sealing member is connected to the fin heat exchanger via a latch.

[0011] Furthermore, the sealing member is fixedly connected to the fin heat exchanger and the bottom plate respectively by screws.

[0012] Furthermore, the fin heat exchanger is provided with an end plate, and the middle partition plate is connected to the end plate.

[0013] Furthermore, a drainage structure is provided on the bottom plate.

[0014] Furthermore, the fan is circular in shape.

[0015] Furthermore, the fin heat exchanger is a ring-shaped structure with an opening, and the vertical projections of the openings of the four fin heat exchangers on the bottom plate are all oriented toward the center of the bottom plate.

[0016] The beneficial effects of the present application are as follows: four heat pump systems are isolated into two heat pump combination systems by a central partition, and the two heat pump combination systems can work relatively independently. When any one of the heat pump combination systems fails, the other heat pump combination system can still work, avoiding the shutdown of the heat pump unit. Moreover, there are two heat pump systems in the same heat pump combination system, so even if one of the heat pump systems fails, the other heat pump system can still keep working to maintain the normal operation of the heat pump combination system; at the same time, in each heat pump system, the fan and the fin heat exchanger are in a tangent state, which can avoid the situation where the size of the fin heat exchanger and the fan is very different. Because once the size difference between the two is large, either insufficient power will occur, or the gap will be too large to generate loud noise. The fan and the fin heat exchanger are in a tangent state, which can ensure that the sizes of the fan and the fin heat exchanger correspond to each other, thereby ensuring that the heat pump system can operate stably, efficiently and with low noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application is further described in detail below based on the drawings and embodiments.

[0018] Figure 1 This is a three-dimensional schematic diagram of the external structure of the four-system heat pump unit described in the embodiment of the present application;

[0019] Figure 2 This is a three-dimensional schematic diagram of the internal structure of the four-system heat pump unit described in the embodiment of the present application;

[0020] Figure 3 For the embodiment of this application Figure 2 A magnified schematic diagram;

[0021] Figure 4 This is a schematic structural perspective view of the fin pad described in the embodiment of the present application;

[0022] Figure 5 It is a schematic three-dimensional structure diagram of the fin heat exchanger described in the embodiment of the present application.

[0023] In the figure: 1. heat pump system; 101. fin heat exchanger; 102. fan; 103. fin pad; 1031. limiting structure; 2. bottom plate; 3. middle partition; 4. sealing element; 5. drainage hole. DETAILED DESCRIPTION

[0024] In order to make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0025] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] like Figure 1-Figure 5As shown, this embodiment provides a four-system heat pump unit, which is composed of four sets of relatively independent and structurally identical heat pump systems 1, and also includes a base plate 2. The four sets of heat pump systems 1 are divided into two groups and are symmetrically arranged on the base plate 2. A middle partition plate 3 is vertically installed on the base plate 2. The middle partition plate 3 is arranged between the two sets of heat pump systems 1 to isolate the two sets of heat pump systems 1 so that they can work relatively independently. The heat pump system 1 includes a fin heat exchanger 101 and a fan 102. The fin heat exchanger 101 is installed on the base plate 2, and the fan 102 is installed above the fin heat exchanger 101. The vertical projection area of ​​the outer peripheral surface of the fan 102 on the base plate 2 is adapted to the vertical projection area of ​​the outer peripheral surface of the fin heat exchanger 101 on the base plate 2.

[0028] Based on the above scheme, the four heat pump systems 1 included in the heat pump unit can all operate relatively independently, and are consistent in assembly structure. In the heat pump unit, the base plate 2 plays a supporting and positioning role. The four heat pump systems 1 are all installed on the base plate 2 and are divided into two groups for symmetrical installation. For ease of understanding, two heat pump systems 1 form a heat pump combination system, and the two heat pump combination systems are separated by a middle partition 3, that is, the two heat pump combination systems do not interfere with each other. When any heat pump combination system fails, the other heat pump combination system can still work to avoid shutdown of the heat pump unit. Moreover, there are two heat pump systems 1 in the same heat pump combination system, so even if one of the heat pump systems 1 fails, the other heat pump system 1 can still maintain a working state to maintain the normal operation of the heat pump combination system; at the same time, in each heat pump system 1, the projection area of ​​the fan 102 and the fin heat exchanger 101 on the base plate 2 is compatible. , the adaptation mentioned here refers to the two projected areas being close in size, specifically the fan 102 and the fin heat exchanger 101 being tangent to each other, where tangent means that part of the area is tangent, so that the situation where the size of the fin heat exchanger 101 and the fan 102 is greatly different can be avoided. Once the size difference between the two is large, such as the size of the fin heat exchanger 101 is larger than the size of the fan 102, it is easy for the fan 102 to be underpowered, resulting in small suction force, resulting in weak cooling capacity; for example, when the size of the fin heat exchanger 101 is smaller than the size of the fan 102, the fin heat exchanger 101 is relatively small, and the gap between the fin heat exchanger 101 and the fan 102 will be large, so that the noise generated when the wind passes through will increase, seriously affecting the user experience; therefore, it is necessary to ensure that the outer peripheral surface of the fan 102 and the vertical plane where the fin heat exchanger 101 is located are tangent to each other, so as to ensure that the sizes of the fan 102 and the fin heat exchanger 101 correspond to each other, thereby ensuring that the heat pump system 1 can operate stably, efficiently and with low noise.

[0029] Further, the heat pump system 1 includes a fin pad 103, the fin pad 103 is mounted on the base plate 2, and the fin heat exchanger 101 is mounted on the fin pad 103. The fin pad 103 can be pre-installed on the base plate 2, and then the fin heat exchanger 101 is installed on the fin pad 103. The fin pad 103 has a certain buffering elasticity, can play a role in buffering and vibration reduction, and can also play a role in positioning the fin heat exchanger 101.

[0030] Furthermore, a limiting structure 1031 is provided on the fin pad 103. The limiting structure 1031 cooperates with the fin heat exchanger 101 to limit the position, which can effectively prevent the fin heat exchanger 101 from deformation and ensure that the fin heat exchanger 101 can perform heat exchange normally and stably.

[0031] Specifically, the limiting structure 1031 is a limiting groove or a limiting protrusion that cooperates with the fin heat exchanger 101 for limiting. The limiting structure 1031 can be determined according to the matching structure at the bottom of the fin heat exchanger 101. If a groove is provided at the bottom of the fin heat exchanger 101 during processing, a corresponding limiting protrusion can be provided on the fin pad 103 to cooperate with it, and vice versa. Since the replacement and production of the fin pad 103 are relatively simpler and more convenient than the fin heat exchanger 101, the limiting cooperation between the fin pad 103 and the fin heat exchanger 101 can correspond to the adjustment of the limiting structure 1031 on the fin pad 103.

[0032] The two heat pump combination systems are divided by a middle partition 3. In order to prevent the airflow from passing through the gap between the middle partition 3 and the fin heat exchanger 101, two seals 4 are also provided. The two seals 4 are respectively arranged at the two ends of the middle partition 3, and are respectively sealed and connected to the two heat pump systems 1. Here, the connection between the seal 4 and the heat pump system 1 is mainly connected to the fin heat exchanger 101. The two heat pump combination systems include four sets of heat pump systems 1, which also include four fin heat exchangers 101. The four fin heat exchangers 101 are symmetrically arranged in two groups. A seal 4 is respectively connected and sealed to two opposite fin heat exchangers 101 to prevent the airflow from passing through the gap, thereby improving the heat exchange efficiency of the fin heat exchanger 101.

[0033] Furthermore, the top of the seal 4 is connected to the fin heat exchanger 101 by a latch, and the seal 4 is fixedly connected to the fin heat exchanger 101 by screws from the top downward, and the bottom of the seal 4 is also fixedly connected to the bottom plate 2 by screws. Before installing the fin heat exchanger 101, the specific fixed position of the fin heat exchanger 101 is pre-positioned by the fin pad 103, and in order to prevent the fin heat exchanger 101 from being displaced and causing installation difficulties, the top of the seal 4 is fixed to the fin heat exchanger 101 by a latch, which is convenient for adjustment and positioning, and the remaining positions can be fixed by screws to ensure the stable connection between the fin heat exchanger 101 and the seal 4.

[0034] In some embodiments, the middle partition 3 is connected to the end plate of the fin heat exchanger 101. During the specific installation process, the middle partition 3 is first fixed to the end plate of the fin heat exchanger 101 to complete the position fixation of the fin heat exchanger 101, and then the seal 4 is installed. The purpose of such installation is to ensure the accurate installation position of the fin heat exchanger 101. In addition, the fin heat exchanger 101 is relatively large in size. The large-volume components are installed first, and then the relatively smaller seal 4 is installed. The installation process will be smoother.

[0035] Optionally, the fan 102 is circular in shape, such as Figure 5 As shown, the fin heat exchanger 101 is a ring structure with an opening, and the vertical projections of the four openings of the fin heat exchanger 101 on the bottom plate 2 are all toward the center of the bottom plate 2. The fin heat exchanger 101 surrounds the bottom of the fan 102 to ensure that the fin heat exchanger 101 is tangent to the fan 102 in the vertical direction. In addition, the openings are designed to be opened toward the center of the bottom plate 2 to facilitate pipeline connection and installation and fixation of other components.

[0036] Preferably, a drainage structure is provided on the bottom plate 2. The drainage structure includes a plurality of drainage channels provided on the bottom plate 2, and drainage holes 5 provided at the confluence end points of each drainage channel. Water droplets on the fin heat exchanger 101 fall onto the bottom plate 2, flow along the drainage channels to the drainage holes 5, and then are discharged from the drainage holes 5 to avoid water accumulation. In addition, the drainage channel can be provided with a structure having a certain slope to facilitate drainage.

[0037] It is worth mentioning that the heat pump system 1 is a circulation system composed of a compressor, a shell and tube heat exchanger, a throttle, a fin heat exchanger 101 and other devices. The heat pump unit generally includes at least two operating modes, a cooling mode and a heating mode. The heating mode is that the refrigerant circulates in the system under the action of the compressor. The refrigerant completes the gaseous pressure and temperature increase process in the compressor, and exchanges heat with water after entering the shell and tube heat exchanger. It is cooled and converted into a flowing liquid state. When the refrigerant runs to the fin heat exchanger 101, the liquid quickly absorbs heat and evaporates and converts into a gaseous state again. At the same time, the temperature drops to below zero. At this time, the air around the fin heat exchanger 101 will continuously transfer low-temperature heat to the refrigerant; the continuous circulation of the refrigerant realizes the process of converting low-temperature heat in the air into high-temperature heat and heating cold water. The action flow of the cooling mode is the same as that of the heating mode, except that the morphological changes of the refrigerant and the heat exchange are opposite.

[0038] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right", etc., and other directions or positional relationships are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of this application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0039] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0040] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0041] The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the present application without creative work, and these methods will fall within the scope of protection of the present application.

Claims

1. A four-system heat pump unit, comprising four relatively independent heat pump systems (1) of the same structure, characterized in that: The invention comprises a base plate (2), four sets of heat pump systems (1) are divided into two groups and symmetrically arranged on the base plate (2), a middle partition plate (3) is vertically installed on the base plate (2), and the middle partition plate (3) is arranged between the two sets of heat pump systems (1) to isolate the two sets of heat pump systems (1) so that they can work relatively independently, the heat pump system (1) comprises a fin heat exchanger (101) and a fan (102), the fin heat exchanger (101) is installed on the base plate (2), the fan (102) is installed above the fin heat exchanger (101), and the vertical projection area of ​​the outer peripheral surface of the fan (102) on the base plate (2) is compatible with the vertical projection area of ​​the outer peripheral surface of the fin heat exchanger (101) on the base plate (2); The heat pump system (1) comprises a fin pad (103), wherein the fin pad (103) is mounted on the base plate (2), and the fin heat exchanger (101) is mounted on the fin pad (103).

2. The four-system heat pump unit according to claim 1, characterized in that: A limiting structure (1031) is provided on the fin pad (103).

3. The four-system heat pump unit according to claim 2, characterized in that: The limiting structure (1031) is a limiting groove or a limiting protrusion that cooperates with the fin heat exchanger (101) to limit the position.

4. The four-system heat pump unit according to any one of claims 1 to 3, characterized in that: Two sealing members (4) are also provided. The two sealing members (4) are respectively provided at the two ends of the middle partition plate (3) and are respectively sealed and connected to the two sets of heat pump systems (1).

5. The four-system heat pump unit according to claim 4, characterized in that: The top of the sealing member (4) is connected to the fin heat exchanger (101) via a latch.

6. The four-system heat pump unit according to claim 4, characterized in that: The sealing member (4) is respectively fixedly connected to the fin heat exchanger (101) and the bottom plate (2) by means of screws.

7. The four-system heat pump unit according to any one of claims 1 to 3, characterized in that: The fin heat exchanger (101) is provided with an end plate, and the middle partition plate (3) is connected to the end plate.

8. The four-system heat pump unit according to any one of claims 1 to 3, characterized in that: A drainage structure is provided on the bottom plate (2).

9. The four-system heat pump unit according to any one of claims 1 to 3, characterized in that: The fin heat exchanger (101) is a ring-shaped structure with an opening, and the vertical projections of the openings of the four fin heat exchangers (101) on the bottom plate (2) are all oriented toward the center of the bottom plate (2).

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