A heat exchanger capable of improving heat exchange efficiency

Abstract

The utility model discloses a heat exchanger capable of improving heat exchange efficiency, comprising a heat exchanger body, wherein the heat exchanger body is arranged in a spiral stack of pipes, the heat exchanger body comprises an outer tube and an inner tube, the inner tube is arranged in the outer tube, the two ends of the inner tube extend out of the outer tube, and a water inlet and a water outlet are arranged on the inner tube, the two ends of the outer tube are arranged with a refrigerant inlet and a refrigerant outlet, a propeller is arranged in the water inlet of the inner tube, the propeller is used to make water form a vortex, so that it can fully contact with the tube wall, thereby improving the efficiency of heat exchange, and the vortex can increase the flow rate of water.

Description

Technical field:

[0001] The utility model relates to the field of heat exchangers, in particular to a heat exchanger capable of improving heat exchange efficiency. Background technology:

[0002] At present, with the development of science and technology, social economy and the improvement of people's living standards, high comfort has become a high demand of users. Air-energy water heaters and air conditioners are commonly used household appliances in people's daily lives. Among them, the heat exchangers in air-energy water heaters and air conditioners are important devices for heat exchange.

[0003] In the prior art, a heat exchanger includes an inner tube and an outer tube. Water enters from the water inlet of the inner tube and exits from the water outlet. The outer tube is used to inject refrigerant to contact the water in the inner tube to achieve heat exchange. The refrigerant will surround the entire inner tube. However, if the water level entering the inner tube is low, the water in the inner tube cannot fully contact the tube wall, resulting in poor water heat exchange effect and a relatively low heat exchange rate. Utility model content:

[0004] The utility model aims to provide a heat exchanger capable of improving heat exchange efficiency, which can solve the technical problem in the prior art that water in the inner tube cannot fully contact the tube wall, resulting in poor water heat exchange effect and relatively low heat exchange rate.

[0005] The purpose of the utility model is achieved through the following technical solutions.

[0006] The utility model aims to provide a heat exchanger capable of improving heat exchange efficiency, comprising a heat exchanger body, wherein the heat exchanger body is arranged in a spiral stack of pipes, the heat exchanger body comprises an outer tube and an inner tube, the inner tube is arranged in the outer tube, the two ends of the inner tube extend out of the outer tube, and the inner tube is provided with a water inlet and a water outlet, the two ends of the outer tube are provided with a refrigerant inlet and a refrigerant outlet, and a propeller is provided in the water inlet of the inner tube.

[0007] Furthermore, a fixing frame is provided on the propeller, and the fixing frame is fixed on the inner tube.

[0008] Furthermore, a thick tube is provided at the end of the inner tube, the diameter of the thick tube is larger than the diameter of the inner tube, and a funnel-shaped buffer tube is provided between the thick tube and the inner tube.

[0009] Furthermore, the buffer tube wraps the water inlet of the inner tube.

[0010] Furthermore, the inner tube is a threaded structure.

[0011] Furthermore, the threaded structure of the inner tube is located at a position wrapped by the outer tube.

[0012] Compared with the prior art, the utility model has the following effects:

[0013] 1) The utility model describes a heat exchanger capable of improving heat exchange efficiency, comprising a heat exchanger body, wherein the heat exchanger body is arranged in a spiral stack of pipes, the heat exchanger body comprises an outer tube and an inner tube, the inner tube is arranged in the outer tube, both ends of the inner tube extend out of the outer tube, and the inner tube is provided with a water inlet and a water outlet, both ends of the outer tube are provided with a refrigerant inlet and a refrigerant outlet, a propeller is provided in the water inlet of the inner tube, the propeller is used to make water form a vortex, so that it can fully contact with the tube wall, thereby improving the efficiency of heat exchange, and the vortex can increase the flow rate of water.

[0014] 2) Other advantages of the present invention are described in detail in the embodiment section of the specification. Description of the drawings:

[0015] Figure 1 It is a three-dimensional diagram of a heat exchanger capable of improving heat exchange efficiency provided by an embodiment of the utility model;

[0016] Figure 2 This is an internal structure diagram of a heat exchanger capable of improving heat exchange efficiency provided by an embodiment of the utility model;

[0017] Figure 3 It is a side view of the inner tube provided by the embodiment of the utility model. Specific implementation method:

[0018] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0019] like Figures 1 to 3As shown, this embodiment provides a heat exchanger that can improve heat exchange efficiency, including a heat exchanger body 1, wherein the heat exchanger body 1 is arranged in a spiral stack of pipes, and the stacking arrangement can reduce space. The heat exchanger body 1 includes an outer tube 11 and an inner tube 12, wherein the inner tube 12 is arranged in the outer tube 11, and both ends of the inner tube 12 extend out of the outer tube 11, and a water inlet 121 and a water outlet 122 are arranged on the inner tube 12, and refrigerant inlet 111 and refrigerant outlet 112 are arranged at both ends of the outer tube 11, and the refrigerant enters from the refrigerant inlet 111, and a propeller 2 is arranged in the water inlet 121 of the inner tube 12, and the propeller 2 can be rotating or non-rotating. Preferably, the rotating propeller 2 can change the direction of the water flow, and the water is allowed to form a vortex through the propeller 2, so that it can fully contact with the tube wall, thereby improving the efficiency of heat exchange, and the vortex can increase the flow rate of the water.

[0020] Preferably, a fixing frame 21 is provided on the propeller 2 , and the fixing frame 21 is fixed on the inner tube 12 , and the fixing frame 21 is used to fix the propeller 2 .

[0021] Preferably, a thick tube 3 is provided at the end of the inner tube 12, and the diameter of the thick tube 3 is larger than the diameter of the inner tube 12. A funnel-shaped buffer tube 31 is provided between the thick tube 3 and the inner tube 12. The thick tube 3 can store a certain amount of water, and gradually becomes thinner from the thick tube 3 to the buffer tube 31 to the inner tube, thereby increasing the water pressure, thereby increasing the flow rate of water through the funnel-shaped buffer tube 31.

[0022] Preferably, the buffer tube 31 wraps around the water inlet 121 of the inner tube 12, and the water pressure can easily stretch the connection, which can increase the service life.

[0023] Preferably, the inner tube 12 is a threaded structure, which can increase the water contact area and improve the efficiency of heat conversion.

[0024] Preferably, the threaded structure of the inner tube 12 is located at a position wrapped by the outer tube 11 .

[0025] In the prior art, the heat exchanger includes an inner tube 12 and an outer tube 11. Water enters from the water inlet 121 of the inner tube 12 and exits from the water outlet 122. The outer tube 11 is used to inject refrigerant to contact the water in the inner tube 12 to achieve heat exchange. The refrigerant will surround the entire inner tube 12. However, if the water level entering the inner tube 12 is low, the water in the inner tube cannot fully contact the tube wall, resulting in poor heat exchange effect of water and low heat exchange rate. Therefore, a propeller 2 is provided in the water inlet 121 of the inner tube 12. When the water flows through the propeller 2 at a high speed, the water in the inner tube 12 is cooled and the heat exchange rate is relatively low. When the propeller 2 is rotated, the water is evenly rotated to the inner wall of the inner tube 12, so that it is fully in contact with the tube wall. The entire water flowing through is evenly in contact with the tube wall to play a role in hot and cold exchange, greatly improving the heat exchange efficiency of the water. It is safe, green, environmentally friendly, safe and reliable. Moreover, a funnel-shaped buffer tube 31 is arranged between the thick tube 3 and the inner tube 12. The thick tube 3 can store a certain amount of water, from the thick tube 3 to the buffer tube 31 to the inner tube, from thick to gradually thin, thereby increasing the water pressure, thereby increasing the flow rate of the water through the funnel-shaped buffer tube 31.

[0026] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited thereto. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention are equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A heat exchanger capable of improving heat exchange efficiency, comprising a heat exchanger body (1), wherein the heat exchanger body (1) is arranged in a spiral stack of pipes, wherein the heat exchanger body (1) comprises an outer tube (11) and an inner tube (12), wherein the inner tube (12) is arranged inside the outer tube (11), and both ends of the inner tube (12) extend outside the outer tube (11), and the inner tube (12) is provided with a water inlet (121) and a water outlet (122), and both ends of the outer tube (11) are provided with a refrigerant inlet (111) and a refrigerant outlet (112), wherein: A propeller (2) is arranged in the water inlet (121) of the inner tube (12).

2. A heat exchanger capable of improving heat exchange efficiency according to claim 1, characterized in that: The propeller (2) is provided with a fixing frame (21), and the fixing frame (21) is fixed on the inner tube (12).

3. A heat exchanger capable of improving heat exchange efficiency according to claim 1, characterized in that: A thick tube (3) is provided at the end of the inner tube (12); the diameter of the thick tube (3) is larger than the diameter of the inner tube (12); and a funnel-shaped buffer tube (31) is provided between the thick tube (3) and the inner tube (12).

4. A heat exchanger capable of improving heat exchange efficiency according to claim 3, characterized in that: The buffer tube (31) wraps around the water inlet (121) of the inner tube (12).

5. A heat exchanger capable of improving heat exchange efficiency according to claim 1, characterized in that: The inner tube (12) is a threaded structure.

6. A heat exchanger capable of improving heat exchange efficiency according to claim 5, characterized in that: The threaded structure of the inner tube (12) is located at a position wrapped by the outer tube (11).

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