Module machine frequency conversion dual-system unit and air conditioner

Abstract

The utility model provides a module machine frequency conversion dual-system unit and an air conditioner, relates to the technical field of air conditioners, and aims to solve the problems that the gravity center of each part in the unit is unstable due to poor layout, and the parts are easy to incline in the hoisting process to generate potential safety hazards. Comprising a base, a shell tube and two refrigerant circulating systems, the shell tube and the two refrigerant circulating systems are arranged on the top face of the base, the shell tube is arranged in the center of the center area of the base, and the two refrigerant circulating systems are distributed around the shell tube in a central symmetry mode.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and in particular to a modular variable frequency dual-system unit and an air conditioner. Background Art

[0002] Heat pump is a highly efficient and energy-saving device that makes full use of 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 to flow from a low-temperature object to a high-temperature object in a reverse cycle. It consumes only a small amount of reverse cycle net work to obtain a large amount of heat supply, and can effectively utilize the difficult-to-apply low-grade thermal energy to achieve energy-saving purposes. In the development of heat pump products, the layout of the base performance parts and the electrical control box is crucial to the development of the whole machine. On the one hand, it is the space utilization rate, which is related to the convenience of copper pipe routing, and on the other hand, the center of gravity and hoisting of the unit are not eccentric to ensure the normal installation of the unit. Utility Model Content

[0003] In view of this, the present application provides a modular variable frequency dual-system unit and air conditioner to improve the problem that the center of gravity of various parts in the unit is unstable due to poor layout, which may easily tilt during the lifting process and cause safety hazards.

[0004] The technical solution adopted by this application to solve the above technical problems is:

[0005] In the first aspect, an embodiment of the present application provides a modular variable frequency dual-system unit, including a base, a shell and tube, and two refrigerant circulation systems, the shell and tube and the two refrigerant circulation systems are arranged on the top surface of the base, the shell and tube are centrally arranged in the central area of ​​the base, and the two refrigerant circulation systems are symmetrically distributed around the shell and tube.

[0006] In some embodiments of the present application, an electric control box is further included, wherein the electric control box is located on the top surface of the base, the electric control box is located at one end of the shell tube, and the overall center of gravity of the electric control box and the shell tube is located directly above the center of the base.

[0007] In some embodiments of the present application, the refrigerant circulation system includes pipelines and components, and the components are respectively arranged symmetrically around the shell and tube.

[0008] In some embodiments of the present application, the components include a first compressor, a second compressor, a first gas-liquid separator, a second gas-liquid separator, a first oil-liquid separator, a second oil-liquid separator, a first liquid storage tank, a second liquid storage tank and a plate heat exchanger.

[0009] In some embodiments of the present application, the overall center of gravity of the first liquid storage tank, the second liquid storage tank, the electric control box and the shell tube is located directly above the center of the base.

[0010] In some embodiments of the present application, the first compressor and the second compressor are symmetrically arranged about the center of gravity of the base.

[0011] In some embodiments of the present application, the first compressor and the second compressor are located at opposite corners of the base.

[0012] In some embodiments of the present application, the first oil-liquid separator and the second oil-liquid separator are symmetrically arranged around the center of the shell tube.

[0013] In some embodiments of the present application, the base is a rectangular plate.

[0014] In a second aspect, the present application provides an air conditioner, comprising a modular variable frequency dual-system unit as described in any one of the above.

[0015] In summary, due to the adoption of the above technical solution, this application has at least the following beneficial effects:

[0016] The present application provides a modular variable frequency dual-system unit and air conditioner. In the embodiment of the present application, the shell and tube are centrally arranged along the symmetry axis of the top surface of the base, and then the various parts in the two refrigerant circulation systems are symmetrically placed on both sides of the shell and tube around the center of the shell and tube. This can ensure that the center of gravity of the unit is centered, so that the base plate is relatively stable during the hoisting process and is not prone to tilting; and the various parts in each refrigerant circulation system of the dual-system module are located on the same side of the shell and tube, and the internal parts are not messy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments are briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present application, but are not intended to limit the present application, wherein:

[0018] Figure 1 A structural schematic diagram of a modular machine variable frequency dual-system unit provided in an embodiment of the present application;

[0019] Figure 2 A flow chart of another structure of a modular machine variable frequency dual-system unit provided in an embodiment of the present application.

[0020] The reference numerals are as follows:

[0021] 1. Base; 2. Shell and tube; 3. Electric control box; 4. Refrigerant circulation system; 41. Parts; 4111. First compressor; 4112. Second compressor; 4121. First gas-liquid separator; 4122. Second gas-liquid separator; 4131. First oil-liquid separator; 4132. Second oil-liquid separator; 4141. First liquid storage tank; 4142. Second liquid storage tank; 415. Plate heat exchanger; 42. Pipeline. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0023] In the description of this application, it should be understood that the words "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description". Any embodiment described in this application as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, known structures and processes are not elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles disclosed in this application.

[0025] When the air conditioner is cooling in summer, it operates according to the refrigeration condition. The high-pressure steam discharged by the compressor enters the condenser through the reversing valve (also known as the four-way valve). The refrigerant vapor is condensed into liquid, enters the evaporator through the throttling device, and absorbs heat in the evaporator to cool the indoor air. The evaporated refrigerant vapor is sucked into the compressor after passing through the reversing valve. This cycle repeats over and over again to achieve the refrigeration cycle. When heating in winter, the reversing valve is first turned to the heat pump working position, so that the high-pressure refrigerant vapor discharged by the compressor flows into the indoor evaporator (used as a condenser) after passing through the reversing valve. The latent heat released when the refrigerant vapor condenses heats the indoor air to achieve the purpose of indoor heating. The condensed liquid refrigerant flows through the throttling device in the reverse direction and enters the condenser (used as an evaporator), absorbing external heat and evaporating. The evaporated steam is sucked into the compressor after passing through the reversing valve to complete the heating cycle. In this way, the heat in the outside air (or circulating water) is "pumped" into the room with a higher temperature, so it is called a "heat pump".

[0026] In the related art, the patent with the authorization announcement number CN217303236U proposes a dual-system heat pump unit device. The structural chassis of this scheme is rectangular. The two compressors are fixed on the chassis respectively. The two compressors are respectively located at two opposite corners of the chassis and are symmetrical to each other; the electric control box and the two heat exchange tanks are respectively located at the other two opposite corners of the chassis, and the electric control box and the two compressors are arranged along the long side direction of the chassis; each gas-liquid separator and plate heat exchanger are respectively fixed on the chassis in a one-to-one correspondence with each compressor. In the dual-system heat pump unit device of this patent, the two compressors are fixed on the two diagonals of the chassis, so that the compressors are located on the outside of the unit. There is enough space when connecting the compressors to the pipeline, and there is no need to adapt the relevant pipes to the size of the unit, and there is no need to bend and lengthen the connecting copper pipes, thereby improving the universality of copper pipes.

[0027] However, this patent is not applicable to all heat pump base layouts and has the following disadvantages:

[0028] The solution in the prior art uses a heat exchange tank, which is a small component. If it is replaced with a shell and tube or a sleeve, the layout cannot be placed, and the versatility is poor;

[0029] The center of gravity of the solution in the prior art is not centered, the unit will tilt toward the heat exchange tank side, and there are hidden dangers in lifting.

[0030] Based on the above-mentioned defects of the module machine dual system variable frequency unit, see Figure 1 and Figure 2 As shown, Figure 1 A schematic diagram of the structure of a modular variable frequency dual-system unit provided in an embodiment of the present application. Figure 2A schematic flow chart of another structure of a modular variable frequency dual-system unit provided in an embodiment of the present application. The embodiment of the present application provides a modular variable frequency dual-system unit, comprising a base 1, a shell and tube 2, and two refrigerant circulation systems 4, wherein the shell and tube 2 and the two refrigerant circulation systems 4 are arranged on the top surface of the base 1, the shell and tube 2 is centrally arranged in the central area of ​​the base, and the two refrigerant circulation systems 4 are symmetrically distributed around the shell and tube 2.

[0031] It can be understood that the shell and tube 2 and the electric control box 3 are shared by two refrigerant circulation systems 4 respectively, the shell and tube 2 is long, and the electric control box 3 is large in volume. Therefore, in order to ensure that the center of gravity of the shell and tube 2 and the electric control box 3 is not shifted after being installed and fixed with the base 1, the shell and tube 2 and the electric control box 3 can be symmetrically arranged along the symmetry line of the base 1.

[0032] It is understandable that the shell and tube 2, the electric control box 3 and the two refrigerant circulation systems 4 may be connected to the base 1 in a fixed connection or a detachable connection.

[0033] It is understandable that the shape of the base 1 can be rectangular, circular, elliptical or other shapes. Generally, the base 1 is set to be rectangular.

[0034] It can be understood that the lifting ears are respectively arranged on both sides of the base 1, and the lifting ears generally include at least four, two on one side of the base 1 and two on the other side of the base 1. This is beneficial in that the base 1 is not easily overturned during the process of lifting the base 1.

[0035] However, in the prior art, since the various devices distributed on the base 1 are not distributed according to the center of gravity of the base plate, during the hoisting process, the entire unit is prone to tipping over because the center of gravity is not located at the exact center of the base 1.

[0036] Beneficial effects of the present application: The present application embodiment arranges the shell tube 2 along the symmetry axis of the top surface of the base 1 in the center, then arranges the electric control box 3 at one end of the shell tube 2, and finally symmetrically places the various parts in the two refrigerant circulation systems 4 on both sides of the shell tube 2, so that the center of gravity of the unit is ensured to be centered, making the bottom plate relatively stable during the hoisting process and not prone to tilting. The various parts in each refrigerant circulation system 4 of the dual-system module are located on the same side of the shell tube 2, and the internal parts 41 are not messy.

[0037] In some embodiments of this application, see Figure 1 and Figure 2 As shown, it also includes an electric control box 3, which is located on the top surface of the base 1 and one end of the shell tube 2. The overall center of gravity of the electric control box 3 and the shell tube 2 is located directly above the center of the base 1.

[0038] It is understandable that since there is only one electric control box 3 and shell tube 2 respectively, and the volume of the electric control box 3 and the shell tube 2 is relatively large, the overall center of gravity of the electric control box 3 and the shell tube 2 is located directly above the center of the base 1, so that when the base 1 is lifted by the lifting lug, the base 1 will not be offset, and the structure of the entire unit is more stable.

[0039] In some embodiments of this application, see Figure 1 and Figure 2 As shown, the refrigerant circulation system 4 includes pipelines 42 and components 41, and the components 41 are respectively arranged around the shell tube 2 in a centrally symmetrical manner.

[0040] It is understandable that since the refrigerant circulation system 4 mainly includes multiple components 41 and pipelines 42, and the weight of the pipelines 42 can be ignored, the components 41 need to be centrally symmetrically arranged around the shell tube 2 so that the bottom plate will not be offset when the base 1 is lifted by the lifting ears. The structure of the entire dual-system variable frequency unit is more stable, and there is no risk of the unit tipping over during the lifting process.

[0041] In some embodiments of this application, see Figure 1 and Figure 2 As shown, the component 41 includes a first compressor 4111, a second compressor 4112, a first gas-liquid separator 4121, a second gas-liquid separator 4122, a first oil-liquid separator 4131, a second oil-liquid separator 4132, a first liquid storage tank 4141, a second liquid storage tank 4142 and a plate heat exchanger 415.

[0042] It can be understood that since the first compressor 4111, the second compressor 4112, the first oil-liquid separator 4131, the second oil-liquid separator 4132, the first liquid storage tank 4141 and the second liquid storage tank 4142 are heavy, they need to be set up first, and the first gas-liquid separator 4121, the second gas-liquid separator 4122 and the plate heat exchanger 415 are light in weight and can be set up later after the position layout of the first compressor 4111, the second compressor 4112, the first oil-liquid separator 4131, the second oil-liquid separator 4132, the first liquid storage tank 4141 and the second liquid storage tank 4142 is set up. In this way, the center of gravity of the whole unit is easier to control.

[0043] In some embodiments of this application, see Figure 1 and Figure 2 As shown, the overall center of gravity of the first liquid storage tank 4141 , the second liquid storage tank 4142 , the electric control box 3 and the shell tube 2 is located directly above the center of the base 1 .

[0044] It can be understood that, among the component 41, the weights of the first compressor 4111, the second compressor 4112, the first oil-liquid separator 4131, and the second oil-liquid separator 4132 are approximately equal, and the first liquid storage tank 4141 and the second liquid storage tank 4142 need to be installed at a position relatively close to the electronic control box 3. The weight of the first liquid storage tank 4141 and the second liquid storage tank 4142 is relatively heavy. Therefore, when installing the electronic control box 3 and the shell tube 2, the center of gravity of the three is set as one, which can avoid the problem of how to adjust the center of gravity of the first liquid storage tank 4141 and the second liquid storage tank 4142 to be located directly above the center of the base 1 after the first compressor 4111, the second compressor 4112, the first oil-liquid separator 4131 and the second oil-liquid separator 4132 are installed.

[0045] In some embodiments of this application, see Figure 1 and Figure 2 As shown, the first compressor 4111 and the second compressor 4112 are symmetrically arranged about the center of the axis of the shell and tube 2.

[0046] It is understandable that since the first compressor 4111 and the second compressor 4112 are prone to resonance during operation, the service life of the first compressor 4111 and the second compressor 4112 may be reduced in the long run. Therefore, the first compressor 4111 and the second compressor 4112 need to be arranged at a long distance from each other, so as to reduce the adverse effects of the resonance caused by the close distance between the first compressor 4111 and the second compressor 4112. Therefore, the first compressor 4111 and the second compressor 4112 may be arranged symmetrically along the center of gravity of the base 1, so as to ensure that the center of gravity of the first compressor 4111 and the second compressor 4112 are located directly above the base 1, and to reduce the mutual influence of the resonance caused by the close distance between the first compressor 4111 and the second compressor 4112, thereby increasing the service life of the first compressor 4111 and the second compressor 4112.

[0047] In some embodiments of this application, see Figure 1 and Figure 2 As shown, the first compressor 4111 and the second compressor 4112 are respectively located at opposite corners of the base 1.

[0048] It can be understood that the first compressor 4111 and the second compressor 4112 are arranged at the diagonals of the base 1, which can ensure that the relative distance between the first compressor 4111 and the second compressor 4112 is far enough, so that the resonance influence between the first compressor 4111 and the second compressor 4112 is low enough, and the overall center of gravity of the first compressor 4111 and the second compressor 4112 is not easy to shift relative to the center of gravity of the base 1. Therefore, the overall unit is more stable during the lifting process.

[0049] In some embodiments of this application, see Figure 1 and Figure 2 As shown, the first oil-liquid separator 4131 and the second oil-liquid separator 4132 are symmetrically arranged around the center of the shell tube 3.

[0050] It can be understood that since the first compressor 4111 and the second compressor 4112 are symmetrically arranged about the center of gravity of the base 1, and the weights of the first compressor 4111, the second compressor 4112, the first oil-liquid separator 4131 and the second oil-liquid separator 4132 are approximately equal, the first oil-liquid separator 4131 and the second oil-liquid separator 4132 also need to be symmetrically arranged about the center of gravity of the base 1 to ensure that the installation of the first oil-liquid separator 4131 and the second oil-liquid separator 4132 on the base 1 will not cause an offset effect on the center of gravity of the entire unit, and can also ensure that the base 1 is more stable, so as to ensure that the entire unit is not prone to tipping over during the lifting process.

[0051] In some embodiments of this application, see Figure 1 and Figure 2 As shown, the base 1 is a rectangular plate.

[0052] It can be understood that the base 1 is rectangular, the axis of the shell tube 2 is fixed above the base 1 along the axis of symmetry of the rectangular plate, and the electric control box 3 is arranged at the end of the shell tube 2. It should be noted that the center of gravity of the shell tube 2, the electric control box 3, the first liquid storage tank 4141, and the second liquid storage tank 4142 need to be directly above the base 1, and then the first compressor 4111 and the second compressor 4112 are arranged at two opposite corners of the rectangular plate. It should be noted that the center of gravity of the first compressor 4111 and the second compressor 4112 need to be directly above the base 1, and then the first oil-liquid separator 4131 and the second oil-liquid separator 4132 are arranged on two opposite corners of the rectangular plate, and then the remaining first gas-liquid separator 4121, the second gas-liquid separator 4122, the plate radiator and the remaining pipelines 42 are installed on the base 1, so that the center of gravity of all the remaining components 41 and pipelines 42 is located in the center of the base 1 as much as possible.

[0053] In a second aspect, the present application provides an air conditioner, comprising a modular variable frequency dual-system unit as described above.

[0054] Since the modular machine variable frequency dual-system unit in the embodiment of the present application has the effect of improving the problem of unstable center of gravity caused by poor layout of various parts in the unit, which is easy to tilt during the lifting process and cause safety hazards, the air conditioner including the modular machine variable frequency dual-system unit in the embodiment of the present application also has the above-mentioned beneficial effects, which will not be repeated here.

[0055] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0056] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0057] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more application embodiments, in the above description of the embodiments of this application, multiple features are sometimes merged into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0058] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, documents, etc., cited in this application is hereby incorporated by reference in its entirety, except for application history documents that are inconsistent with or conflicting with the content of this application, and documents that limit the broadest scope of the claims of this application (currently or later attached to this application). It should be noted that if the descriptions, definitions, and / or use of terms in the attached materials of this application are inconsistent or conflicting with the content of this application, the descriptions, definitions, and / or use of terms in this application shall prevail.

Claims

1. A modular machine variable frequency dual system unit, characterized in that: The invention comprises a base (1), a shell tube (2) and two refrigerant circulation systems (4); the shell tube (2) and the two refrigerant circulation systems (4) are arranged on the top surface of the base (1); the shell tube (2) is centrally arranged in the central area of ​​the base; and the two refrigerant circulation systems (4) are symmetrically distributed around the shell tube (2).

2. The unit according to claim 1, characterized in that: It also includes an electric control box (3), the electric control box (3) is located on the top surface of the base (1), the electric control box (3) is located at one end of the shell tube (2), and the overall center of gravity of the electric control box (3) and the shell tube (2) is located directly above the center of the base (1).

3. The unit according to claim 2, characterized in that: The refrigerant circulation system (4) comprises components (41) and pipelines (42), and the components (41) are respectively arranged around the shell tube (2) in a centrally symmetrical manner.

4. The unit according to claim 3, characterized in that: The components (41) include a first compressor (4111), a second compressor (4112), a first gas-liquid separator (4121), a second gas-liquid separator (4122), a first oil-liquid separator (4131), a second oil-liquid separator (4132), a first liquid storage tank (4141), a second liquid storage tank (4142), and a plate heat exchanger (415).

5. The unit according to claim 4, characterized in that: The overall center of gravity of the first liquid storage tank (4141), the second liquid storage tank (4142), the electric control box (3) and the shell tube (2) is located directly above the center of the base (1).

6. The unit according to claim 5, characterized in that: The first compressor (4111) and the second compressor (4112) are symmetrically arranged around the shell tube (2).

7. The unit according to claim 6, characterized in that: The first compressor (4111) and the second compressor (4112) are respectively located at opposite corners of the base (1).

8. The unit according to claim 7, characterized in that: The first oil-liquid separator (4131) and the second oil-liquid separator (4132) are symmetrically arranged around the center of the shell tube (2).

9. The unit according to claim 1, characterized in that: The base (1) is a rectangular plate.

10. An air conditioner, characterized in that: It comprises a modular machine variable frequency dual system unit as described in any one of claims 1 to 9.

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