Counter-flow type spiral tube heat exchanger

Abstract

The utility model provides a reverse flow type spiral pipe heat exchanger which comprises an outer pipe body, an inner pipe body, a spiral heat exchange pipe and a water conveying pipe, the two ends of the outer pipe body and the two ends of the inner pipe body are connected with plugs in a sealed mode, the inner pipe body is arranged in the outer pipe body through an inner support, and a gap between the outer pipe body and the inner pipe body is a heat exchange gap. The spiral heat exchange pipe is installed in the heat exchange gap, the two ends of the spiral heat exchange pipe are connected with the sealed water inlet assembly, and the two water conveying pipes are arranged at the upper end and the lower end of the outer pipe body correspondingly. The first heat exchange liquid enters the heat exchange gap through the water conveying pipe, the second heat exchange liquid enters the spiral heat exchange pipe to achieve heat exchange with the first heat exchange liquid, the spiral heat exchange pipe is of a spiral structure, the heat exchange efficiency can be improved, and when the spiral heat exchange pipe is installed in the connecting groove, the connecting sealing performance of the spiral heat exchange pipe and the sleeve can be guaranteed through the elasticity of the spiral heat exchange pipe. The pipeline structure is simple in design, low in production cost and capable of being used for meeting the heat exchange requirement of the solution dehumidifier.

Description

Technical Field

[0001] The utility model relates to the field of heat exchangers, and particularly to a countercurrent spiral tube heat exchanger. Background Art

[0002] In the field of heating, ventilation and air conditioning, the solution dehumidification technology, as an advanced air humidity treatment method, has received extensive attention and application in recent years. This technology uses a salt solution with hygroscopic properties as a medium, and through heat and mass transfer between the solution and fresh air, the dehumidification treatment of fresh air is realized. Compared with the traditional condensation dehumidification method, the solution dehumidification technology has significant advantages such as no need for reheating, high dehumidification efficiency, and the ability to provide a more comfortable indoor environment.

[0003] However, in practical applications, the solution dehumidifier still faces some technical challenges. Among them, the design and operating efficiency of the heat exchange mechanism are one of the key issues. The traditional heat exchanger pipeline structure is complex and the cost is high, which is not conducive to mass production. Summary of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In order to solve the above problems of the prior art, the utility model provides a countercurrent spiral tube heat exchanger.

[0006] (2) Technical Solutions

[0007] In order to achieve the above object, the main technical solutions adopted by the utility model include:

[0008] A countercurrent spiral tube heat exchanger, including an outer tube body, an inner tube body, a spiral heat exchange tube and a water delivery pipe;

[0009] Both ends of the outer tube body and the inner tube body are hermetically connected with plugs, and the inner tube body is arranged in the outer tube body through an inner support. The inner tube body and the outer tube body are coaxially arranged, and the gap between the outer tube body and the inner tube body is a heat exchange gap;

[0010] The spiral heat exchange tube is installed in the heat exchange gap, and both ends of the spiral heat exchange tube are connected with a sealed water inlet assembly;

[0011] There are two water delivery pipes, which are respectively arranged at the upper and lower ends of the outer tube body.

[0012] Preferably, the sealed water inlet assembly includes a sleeve and a sealing ring;

[0013] The sleeve is arranged in the outer tube body and fixed on the plug of the outer tube body. A connection groove is opened at one end of the sleeve away from the plug;

[0014] The sealing ring is installed in the connecting groove, and the end of the spiral heat exchange tube is installed in the connecting groove;

[0015] The other end of the sleeve is connected with a taper adapter, and the taper adapter is arranged outside the outer tube body.

[0016] Preferably, the water delivery pipe is a PVC five-way pipe. The water inlet of the PVC five-way pipe extends outside the outer tube body and is connected with the taper adapter, and the remaining water outlets of the PVC five-way pipe are all arranged inside the outer tube body.

[0017] Preferably, one end of the water delivery pipe extends into the outer tube body and is sealed. A plurality of through holes are formed on the surface of the part of the water delivery pipe extending into the outer tube body.

[0018] Preferably, the outer tube body comprises a first tube body and a second tube body. There are two first tube bodies, which are respectively installed at both ends of the second tube body through flanges; the water delivery pipe and the sealed water inlet assembly are both installed in the first tube body.

[0019] Preferably, the inner tube body is made of one of titanium, stainless steel, cupronickel, brass, tin phosphor bronze or aluminum bronze, and the outer tube body is made of a plastic pipe with good corrosion resistance to high-salt solutions.

[0020] (III) Beneficial effects

[0021] The beneficial effects of the present utility model are as follows: By adopting the above technical solution, the heat exchange liquid I enters the heat exchange gap through the water delivery pipe, and the heat exchange liquid II enters the spiral heat exchange tube to realize heat exchange with the heat exchange liquid I. The spiral heat exchange tube is in a spiral structure, which can improve the heat exchange efficiency. When the spiral heat exchange tube is installed in the connecting groove, its own elasticity can ensure the connection sealing performance with the sleeve. The pipeline structure design of this application is simple, the production cost is low, and it can be used to meet the heat exchange requirements of the solution dehumidifier. Description of the drawings

[0022] Figure 1 It is a schematic structural diagram of a countercurrent spiral tube heat exchanger Figure 1 ;

[0023] Figure 2 It is a schematic structural diagram of a countercurrent spiral tube heat exchanger Figure 2 。

[0024] Description of the reference numerals:

[0025] 1. Outer tube body; 11. First tube body; 12. Second tube body;

[0026] 2. Inner tube body;

[0027] 3. Inner support;

[0028] 4. Spiral heat exchange tube;

[0029] 5. Flange;

[0030] 6. Water pipe;

[0031] 7. Pagoda joint;

[0032] 8. Seal the water inlet assembly. DETAILED DESCRIPTION

[0033] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0034] Please refer to Figures 1 to 2 The utility model provides a counter-flow spiral tube heat exchanger, comprising an outer tube body 1, an inner tube body 2, a spiral heat exchange tube 4 and a water delivery pipe 6;

[0035] Both ends of the outer tube body 1 and the inner tube body 2 are sealed and connected with plugs, and the inner tube body 2 is arranged in the outer tube body 1 through the inner support 3. The inner tube body 2 and the outer tube body 1 are coaxially arranged, and the gap between the outer tube body 1 and the inner tube body 2 is a heat exchange gap;

[0036] The spiral heat exchange tube 4 is installed in the heat exchange gap, and both ends of the spiral heat exchange tube 4 are connected to the sealed water inlet assembly 8;

[0037] Two water delivery pipes 6 are provided, which are respectively arranged at the upper and lower ends of the outer tube body 1 .

[0038] Wherein, the sealed water inlet assembly 8 includes a sleeve and a sealing ring;

[0039] The sleeve is arranged in the outer tube body 1 and fixed on the plug of the outer tube body 1. A connecting groove is provided on the end of the sleeve away from the plug.

[0040] The sealing ring is installed in the connecting groove, and the end of the spiral heat exchange tube 4 is installed in the connecting groove;

[0041] The other end of the sleeve is connected with a pagoda joint 7, which is arranged outside the outer tube body 1;

[0042] When in use, heat exchange liquid 1 enters the heat exchange gap through the water pipe 6, and heat exchange liquid 2 enters the spiral heat exchange tube 4 to achieve heat exchange with heat exchange liquid 1. The spiral heat exchange tube 4 has a spiral structure, which can improve the heat exchange efficiency. When the spiral heat exchange tube 4 is installed in the connecting groove, its own elasticity can ensure the sealing of the connection with the casing. The pipeline structure of the present application is simple in design and has low production cost, and can be used to meet the heat exchange requirements of the solution dehumidifier.

[0043] In this embodiment, the water pipe 6 is a PVC five-way pipe, the water inlet of the PVC five-way pipe extends to the outside of the outer tube body 1 and is connected to the pagoda joint 7, and the remaining water outlets of the PVC five-way pipe are all arranged in the outer tube body 1. The setting of multiple water outlets ensures that the solution is evenly diffused in all directions when the water pipe 6 takes in water, thereby improving the heat exchange efficiency.

[0044] In this embodiment, one end of the water pipe 6 extends into the outer tube body 1 and is sealed. The surface of the water pipe 6 extending into the outer tube body 1 is provided with a plurality of perforations. The multi-perforation arrangement ensures that the solution is evenly diffused in all directions when water enters the water pipe 6, thereby improving the heat exchange efficiency.

[0045] In this embodiment, the outer tube body 1 includes a first tube body 11 and a second tube body 12. The first tube body 11 is provided with two, which are respectively installed at both ends of the second tube body 12 through flanges 5; the water supply pipe 6 and the sealed water inlet assembly 8 are both installed in the first tube body 11, which facilitates the rapid installation of the spiral heat exchange tube 4 and the sealed water inlet assembly 8.

[0046] In this embodiment, the inner tube body 2 is made of one of titanium, stainless steel, nickel silver, brass, tin phosphor bronze or aluminum bronze, and the outer tube body 1 is made of a plastic tube with good corrosion resistance to high salt solutions.

[0047] The working principle of the utility model is as follows:

[0048] Heat exchange liquid 1 enters the heat exchange gap through the water pipe 6, and heat exchange liquid 2 enters the spiral heat exchange tube 4 to achieve heat exchange with heat exchange liquid 1. The spiral heat exchange tube 4 has a spiral structure, which can improve the heat exchange efficiency. When the spiral heat exchange tube 4 is installed in the connecting groove, its own elasticity can ensure the sealing of the connection with the casing. The pipeline structure of the present application is simple in design and has low production cost, and can be used to meet the heat exchange requirements of the solution dehumidifier.

[0049] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0050] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

[0051] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 modes that can be understood by those skilled in the art.

Claims

1. A countercurrent spiral tube heat exchanger, characterized in that, It includes an outer pipe body, an inner pipe body, a spiral heat exchange pipe and a water delivery pipe; Both ends of the outer pipe body and the inner pipe body are hermetically connected with plugs, and the inner pipe body is arranged in the outer pipe body through an inner support. The inner pipe body and the outer pipe body are coaxially arranged, and the gap between the outer pipe body and the inner pipe body is a heat exchange gap; The spiral heat exchange pipe is installed in the heat exchange gap, and both ends of the spiral heat exchange pipe are connected to a sealed water inlet assembly; There are two water delivery pipes, which are respectively arranged at the upper and lower ends of the outer pipe body.

2. The countercurrent spiral tube heat exchanger according to claim 1, wherein The sealed water inlet assembly includes a sleeve and a sealing ring; The sleeve is arranged in the outer pipe body and fixed on the plug of the outer pipe body. A connecting groove is opened at one end of the sleeve away from the plug; The sealing ring is installed in the connecting groove, and the end of the spiral heat exchange pipe is installed in the connecting groove; The other end of the sleeve is connected with a taper joint, and the taper joint is arranged outside the outer pipe body.

3. A countercurrent spiral tube heat exchanger according to claim 1, characterized in that, The water delivery pipe is a PVC five-way pipe. The water inlet of the PVC five-way pipe extends outside the outer pipe body and is connected with the taper joint, and the other water outlets of the PVC five-way pipe are all arranged inside the outer pipe body.

4. A countercurrent spiral tube heat exchanger according to claim 1, characterized in that, One end of the water delivery pipe extends into the outer pipe body and is plugged. A number of through holes are opened on the surface of the part of the water delivery pipe extending into the outer pipe body.

5. A countercurrent spiral tube heat exchanger according to claim 1, characterized in that, The outer pipe body includes a first pipe body and a second pipe body. There are two first pipe bodies, which are respectively installed at both ends of the second pipe body through flanges; the water delivery pipe and the sealed water inlet assembly are both installed in the first pipe body.

6. A countercurrent spiral tube heat exchanger according to claim 1, characterized in that, The inner pipe body is made of one of titanium, stainless steel, cupronickel, brass, tin phosphor bronze or aluminum bronze, and the outer pipe body is made of a plastic pipe with good corrosion resistance to high-salt solutions.

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