Fluorine water heat exchange device of air energy equipment

Abstract

The utility model provides a fluorine water heat exchange device of air energy equipment. A fluorine water heat exchange device of air energy equipment comprises a heat exchange water tank and at least one set of sleeves. At least one group of sleeves are arranged in the heat exchange water tank; each set of sleeve comprises an inner pipe and an outer pipe, an opening is formed in an upper pipe opening of the outer pipe of each set of sleeve, and the outer pipe of each set of sleeve is connected with the refrigerant inlet pipeline through the opening; open holes are formed in the lower pipe openings of the outer pipes on each set of sleeves, the outer pipes on each set of sleeves are connected with a refrigerant outlet pipeline through the open holes, and the upper pipe openings of the inner pipes on each set of sleeves are connected with a first water outlet pipe. The fluorine water heat exchange device of the air energy equipment solves the problems that an existing heat exchanger is low in heat exchange efficiency, the heat exchanger needs to be used in cooperation with a buffer water tank in a water system, then material cost is increased, and installation personnel need to assemble the equipment on site, so that installation cost is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of heating devices, in particular to a fluorine-water heat exchange device for air energy equipment. Background Art

[0002] In the process of replacing coal with electricity in rural areas, air conditioning / heat pumps and other systems have been widely used. Air source heat pumps are mainly used for heating methods of water systems, such as floor heating, radiators, fan coils, etc. At present, the heat exchange devices used inside air source heat pump units are generally casing, high-efficiency tank, plate heat exchanger, etc. Among them, the disadvantages of casing heat exchanger are low heat exchange efficiency and large water pipe resistance, and a high-power circulation pump must be selected, which increases the system power consumption and the overall energy efficiency of the system is low; the disadvantage of plate heat exchanger is that when the equipment has insufficient water flow or insufficient heat in the buffer water tank during defrosting or refrigeration, the water side cavity inside the plate heat exchanger is prone to ice and expansion, causing deformation inside the plate heat exchanger, and the fluorine side cavity becomes smaller, resulting in high-pressure failure of the equipment; the disadvantage of high-efficiency tank heat exchanger is that the heat exchange efficiency is lower than that of plate heat exchanger, and the compressor oil is easily deposited in the high-efficiency tank, reducing the heat exchange efficiency; the above three types of heat exchangers all need to add a buffer water tank outside the unit to store heat and provide heat for the unit when defrosting. The existing heat exchange method plus an external buffer water tank has high material costs and requires on-site assembly by installers, which increases the installation cost.

[0003] In summary, existing heat exchangers have the disadvantages of low heat exchange efficiency, needing to be used with a buffer water tank in the water system, thereby increasing the material cost, and requiring installers to assemble the equipment on site, thereby increasing the installation cost. Utility Model Content

[0004] In order to solve the above problems, the utility model provides an air energy equipment fluorine water heat exchange device to solve the problems of low heat exchange efficiency of existing heat exchangers, and the need for heat exchangers to be used with a buffer water tank in the water system, thereby increasing the material cost, and the need for installers to assemble the equipment on site, thereby increasing the installation cost.

[0005] According to a first aspect of the utility model, there is provided a fluorine water heat exchange device for air energy equipment, comprising: a water exchange water tank and at least one set of casing pipes;

[0006] At least one set of sleeves is arranged inside the water exchange water tank;

[0007] Each set of sleeves includes an inner tube and an outer tube, and the upper and lower tube openings of the inner tube both extend outward relative to the upper and lower tube openings of the outer tube, and a sealed cavity is formed between the outer side wall of the inner tube and the inner side wall of the outer tube;

[0008] The upper pipe opening of the outer pipe on each set of sleeves is provided with an opening, and the outer pipe on each set of sleeves is connected to the refrigerant inlet pipe through the opening, and the refrigerant inlet pipe is communicated with the sealed cavity, and the inlet of the refrigerant inlet pipe passes through the upper side of the hot water exchange tank and extends to the outside of the hot water exchange tank;

[0009] The lower pipe opening of the outer pipe on each set of sleeves is provided with an opening, and the outer pipe on each set of sleeves is connected to the refrigerant outlet pipe through the opening, and the refrigerant outlet pipe is communicated with the sealed cavity, and the outlet of the refrigerant outlet pipe passes through the lower side of the hot water exchange tank and extends to the outside of the hot water exchange tank;

[0010] The lower pipe opening of the inner pipe on each set of casing pipes is connected to the water inlet pipe, and the inlet opening of the water inlet pipe passes through the hot water exchange tank and extends to the outside of the hot water exchange tank;

[0011] The upper pipe opening of the inner pipe on each set of sleeves is connected to the first water outlet pipe, and the first water outlet pipe is arranged to be open at the lower end and blocked at the upper end;

[0012] A second water outlet pipe is inserted on the upper side of the water exchange tank away from the side of the refrigerant inlet pipe.

[0013] Optionally, when the number of sleeves is not less than 2, the sleeves are distributed in parallel and connected in the same way.

[0014] Optionally, the inner tube and the outer tube are connected by welding, and the welding points are at the upper and lower tube openings of the outer tube.

[0015] Optionally, the pipe inlet of the refrigerant inlet pipe is connected to the exhaust pipe of the air source heat pump compressor.

[0016] Optionally, the outlet of the refrigerant outlet pipe is connected to the throttling device of the unit.

[0017] Optionally, the water inlet port of the water inlet pipe is connected to the indoor terminal pipe system.

[0018] Optionally, the second water outlet pipe is connected to the indoor terminal pipe system.

[0019] Optionally, a plurality of fins are provided on the outer side wall of the outer tube of each group of sleeves.

[0020] Optionally, a sewage outlet is provided at the bottom of the water exchange tank.

[0021] Optionally, an electric heating wire port is provided on the lower side of the water exchange water tank.

[0022] The utility model provides an air energy equipment fluorine water heat exchange device, thereby achieving the following technical effects:

[0023] 1. Compared with the common shell and tube heat exchanger, the fluorine-water heat exchange device of the air energy equipment of the present application has one more heat exchange process on the outer wall of the shell and tube, thus improving the heat exchange efficiency;

[0024] 2. The fluorine water heat exchange device of the air energy equipment of the present application uses a water exchange tank as a container, and the internal water can store enough heat to meet the defrosting needs of the unit;

[0025] 3. The fluorine-water heat exchange device of the air energy equipment of the present application replaces the external buffer water tank, reduces the installation links, and reduces the system procurement cost;

[0026] 4. When the water pump fails and there is no water flow during the refrigeration or defrosting process of the heat pump system, the outer wall of the outer tube of the casing can still complete the heat exchange and take away the cold, so as not to freeze the heat exchange device. In this state, the unit has a better fault tolerance rate and reduces maintenance costs.

[0027] Therefore, the utility model solves the defects of low heat exchange efficiency of existing heat exchangers, the need for heat exchangers to be used with buffer water tanks in water systems, which increases material costs, and the need for installers to assemble equipment on site, which increases installation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of a fluorine-water heat exchange device for air energy equipment provided by the utility model;

[0029] Figure 2 The utility model is a cross-sectional view of a sleeve of a fluorine-water heat exchange device of an air energy equipment.

[0030] List of reference numerals:

[0031] 1. Heat exchange water tank; 2. Casing; 2-1. Inner tube; 2-2. Outer tube; 3. Sealed cavity; 4. Refrigerant inlet pipe; 5. Refrigerant outlet pipe; 6. Water inlet pipe; 7. First water outlet pipe; 8. Second water outlet pipe; 9. Fins; 10. Drain outlet; 11. Electric heating wire outlet. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Reference Figure 1 to Figure 2 The utility model provides a fluorine-water heat exchange device for air energy equipment, which can solve the defects of low heat exchange efficiency of existing heat exchangers, the need for heat exchangers to be used with buffer water tanks in water systems, thereby increasing material costs, and the need for installers to assemble the equipment on site, thereby increasing installation costs.

[0036] The utility model provides a fluorine water heat exchange device for air energy equipment, comprising: a water exchange water tank 1 and at least one set of sleeves 2;

[0037] At least one set of sleeves 2 is arranged inside the water exchange water tank 1;

[0038] Each set of sleeves 2 includes an inner tube 2-1 and an outer tube 2-2, and the upper and lower tube openings of the inner tube 2-1 extend outward relative to the upper and lower tube openings of the outer tube 2-2, and a sealed cavity 3 is formed between the outer wall of the inner tube 2-1 and the inner wall of the outer tube 2-2;

[0039] The upper pipe opening of the outer pipe 2-2 on each set of sleeves 2 is provided with an opening, and the outer pipe 2-2 on each set of sleeves 2 is connected to the refrigerant inlet pipe 4 through the opening, and the refrigerant inlet pipe 4 is connected to the sealed cavity 3, and the inlet of the refrigerant inlet pipe 4 passes through the upper side of the hot water exchange tank 1 and extends to the outside of the hot water exchange tank 1;

[0040] The lower pipe opening of the outer pipe 2-2 on each set of sleeves 2 is provided with an opening, and the outer pipe 2-2 on each set of sleeves 2 is connected to the refrigerant outlet pipe 5 through the opening, and the refrigerant outlet pipe 5 is communicated with the sealed cavity 3, and the outlet of the refrigerant outlet pipe 5 passes through the lower side of the hot water exchange tank 1 and extends to the outside of the hot water exchange tank 1;

[0041] The lower pipe opening of the inner pipe 2-1 on each set of casing pipes 2 is connected to the water inlet pipe 6, and the inlet of the water inlet pipe 6 passes through the hot water exchange tank 1 and extends to the outside of the hot water exchange tank 1;

[0042] The upper pipe opening of the inner pipe 2-1 on each set of sleeves 2 is connected to the first water outlet pipe 7, and the first water outlet pipe 7 is set to be open at the lower end and blocked at the upper end;

[0043] A second water outlet pipe 8 is inserted into the upper side of the water exchange tank 1 away from the refrigerant inlet pipe 4 .

[0044] Among them, the water exchange tank 1, the casing 2, the refrigerant inlet pipe 4, the refrigerant outlet pipe 5, the water inlet pipe 6, the first water outlet pipe 7, and the second water outlet pipe 8 are all existing products, which can be specifically used to achieve the functions and effects of this application.

[0045] In addition, the number of sleeves 2 in the heat exchange device in the present application can be increased or decreased according to the air source heat pump and energy efficiency requirements, and the length of each group of sleeves 2 can be increased or decreased according to the unit power and design energy efficiency.

[0046] Reference Figure 1 Optionally, when the number of sleeves 2 is not less than 2, the sleeves 2 are distributed in parallel and connected in the same way.

[0047] Among them, the same-route parallel distribution of the casing 2 with a number greater than or equal to 2 reduces the water flow resistance, reduces the power of the water-side circulation pump of the heat pump system, and makes the system more energy-efficient.

[0048] Optionally, the inner tube 2-1 and the outer tube 2-2 are connected by welding, and the welding points are at the upper and lower tube openings of the outer tube 2-2.

[0049] Optionally, the pipe inlet of the refrigerant inlet pipe 4 is connected to the exhaust pipe of the air source heat pump compressor.

[0050] Among them, the setting of the exhaust pipe of the air source heat pump compressor is used for the compressor to transport the gaseous high-temperature refrigerant from top to bottom to each group of sealed cavities 3 through the refrigerant inlet pipe 4.

[0051] Optionally, the outlet of the refrigerant outlet pipe 5 is connected to the throttling device of the unit.

[0052] Optionally, the pipe inlet of the water inlet pipe 6 is connected to the indoor terminal pipe system.

[0053] Optionally, the second water outlet pipe 8 is connected to the indoor terminal pipe system.

[0054] Reference Figure 2 Optionally, a plurality of fins 9 are provided on the outer side wall of the outer tube 2 - 2 on each group of sleeves 2 .

[0055] Among them, the inner tube 2-1 and the outer tube 2-2 of each group of sleeves 2 can change shape and add various fin structures according to actual heat exchange requirements to increase heat exchange efficiency. The cross-section of the inner tube 2-1 can be polygonal, and the cross-section of the outer tube 2-2 can also be polygonal.

[0056] Reference Figure 1 Optionally, a sewage outlet 10 is provided at the bottom of the water exchange tank 1 .

[0057] The drain outlet 10 is used to discharge impurities that have sunk to the bottom of the water exchange tank 1 .

[0058] Reference Figure 1 Optionally, an electric heating wire port 11 is provided on the lower side of the water exchange tank 1 .

[0059] Among them, the setting of the electric heating wire port 11 can meet the design requirements of multi-energy coupling.

[0060] Working principle: (taking no less than 2 sets of casing 2 as an example)

[0061] After the air source heat pump system is installed and filled with water, when it is running for heating in winter, the compressor transports the gaseous high-temperature refrigerant through the refrigerant inlet pipe 4 from top to bottom to the sealed cavity 3 of each group of casing 2 through the air source heat pump compressor exhaust pipe, and the indoor circulating water flows from bottom to top in the inner tube 2-1. At this time, the high-temperature refrigerant and the low-temperature water complete a heat exchange on the inner wall of each group of casing 2. When the water in the casing 2 flows into the heat exchange water tank 1 through the first water outlet pipe 7, it flows from bottom to top again, and finally the water flows through the second water outlet pipe 8 into the indoor terminal pipeline system. In this process, the water and the high-temperature refrigerant complete another heat exchange on the outer wall of the outer tube 2-2 of each group of casing 2.

[0062] It should be noted that not all steps and modules in the above-mentioned processes and system structure diagrams are necessary, and some steps or modules can be ignored according to actual needs. The execution order of each step is not fixed and can be adjusted as needed. The system structure described in the above-mentioned embodiments can be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities, or some components in multiple independent devices may be implemented together.

[0063] In the above embodiments, the hardware module can be implemented mechanically or electrically. The above text shows and describes the present invention in detail through the accompanying drawings and preferred embodiments, but the present invention is not limited to these disclosed embodiments. Based on the above embodiments, those skilled in the art can know that the code review methods in the above different embodiments can be combined to obtain more embodiments of the present invention, and these embodiments are also within the protection scope of the present invention.

Claims

1. A fluorine-water heat exchange device for air energy equipment, characterized in that: include: A heat exchange water tank (1) and at least one set of casing pipes (2); At least one group of the sleeves (2) is arranged inside the water exchange tank (1); Each set of the sleeves (2) comprises an inner tube (2-1) and an outer tube (2-2), and the upper and lower tube openings of the inner tube (2-1) extend outward relative to the upper and lower tube openings of the outer tube (2-2), and a sealed cavity (3) is formed between the outer side wall of the inner tube (2-1) and the inner side wall of the outer tube (2-2); An opening is provided at the upper pipe opening of the outer pipe (2-2) on each group of the sleeves (2), and the outer pipe (2-2) on each group of the sleeves (2) is connected to the refrigerant inlet pipe (4) through the opening, and the refrigerant inlet pipe (4) is connected to the sealed cavity (3), and the inlet of the refrigerant inlet pipe (4) passes through the upper side of the water exchange tank (1) and extends to the outside of the water exchange tank (1); The lower pipe opening of the outer pipe (2-2) on each group of the sleeves (2) is provided with an opening, and the outer pipe (2-2) on each group of the sleeves (2) is connected to the refrigerant outlet pipe (5) through the opening, and the refrigerant outlet pipe (5) is connected to the sealed cavity (3), and the outlet of the refrigerant outlet pipe (5) passes through the lower side of the water exchange tank (1) and extends to the outside of the water exchange tank (1); The lower pipe opening of the inner pipe (2-1) on each group of the sleeves (2) is connected to a water inlet pipe (6), and the inlet opening of the water inlet pipe (6) passes through the heat exchange water tank (1) and extends to the outside of the heat exchange water tank (1); The upper pipe opening of the inner pipe (2-1) on each group of the sleeves (2) is connected to the first water outlet pipe (7), and the first water outlet pipe (7) is configured to be open at the lower end and blocked at the upper end; A second water outlet pipe (8) is inserted on the upper side of the water exchange tank (1) away from the refrigerant inlet pipe (4).

2. The fluorine-water heat exchange device for air energy equipment according to claim 1, characterized in that: When the number of the sleeves (2) is not less than 2, the sleeves (2) are distributed in parallel and connected in a co-path manner.

3. The fluorine-water heat exchange device for air energy equipment according to claim 2, characterized in that: The inner tube (2-1) and the outer tube (2-2) are connected by welding, and the welding points are located at the upper and lower tube openings of the outer tube (2-2).

4. The fluorine-water heat exchange device for air energy equipment according to claim 3, characterized in that: The pipe inlet of the refrigerant inlet pipe (4) is connected to the exhaust pipe of the air source heat pump compressor.

5. The fluorine-water heat exchange device for air energy equipment according to claim 4, characterized in that: The outlet of the refrigerant outlet pipe (5) is connected to the throttling device of the unit.

6. The fluorine-water heat exchange device for air energy equipment according to claim 5, characterized in that: The pipe inlet of the water inlet pipe (6) is connected to the indoor terminal pipe system.

7. The fluorine-water heat exchange device for air energy equipment according to claim 6, characterized in that: The second water outlet pipe (8) is connected to the indoor terminal pipe system.

8. The fluorine-water heat exchange device for air energy equipment according to claim 7, characterized in that: A plurality of fins (9) are provided on the outer side wall of the outer tube (2-2) on each group of the sleeves (2).

9. The fluorine-water heat exchange device for air energy equipment according to claim 8, characterized in that: The bottom of the water exchange tank (1) is provided with a sewage outlet (10).

10. The fluorine-water heat exchange device for air energy equipment according to claim 9, characterized in that: An electric heating wire port (11) is provided on the lower side of the water exchange tank (1).

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