Novel single-flow coiled tube type heat exchange device

Abstract

The utility model discloses a novel single-stream coiled tube type heat exchange device in the technical field of heat exchange devices, which comprises a box body, a box cover is hinged to the top of the rear part of the box body, a fixing mechanism is fixedly connected to the front part of the box body, a connecting mechanism is fixedly connected to the front part of the box cover, and a heat exchange pipeline is arranged between the box body and the box cover. The outer surface of the heat exchange pipeline is sleeved with a winding pipe, box body heat exchange grooves matched with the heat exchange pipeline are formed in the tops of the front side and the rear side of the box body correspondingly, and box body winding pipe grooves matched with the winding pipe are formed in the tops of the front side and the rear side of the box body correspondingly. The bottom of the front side and the bottom of the rear side of the box cover are each provided with a box cover heat exchange groove matched with a heat exchange pipeline, the bottom of the front side and the bottom of the rear side of the box cover are each provided with a box cover pipe winding groove matched with a winding pipe, and the fixing mechanism comprises a fixing block. And the applicability is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange devices, in particular to a novel single-stream pipe-wound heat exchange device. Background Art

[0002] Heat exchangers are important unit equipment in many industrial productions such as chemical industry, oil refining, power, metallurgy, etc. The coiled tube heat exchanger is a shell and tube heat exchanger with a special structure, which mainly includes parts such as shell, core tube and coiled tube. Its basic structure is that the coiled tube is wound around the outside of the core tube. The core tube is located at the central axis of the shell of the heat exchanger, as the support of the coiled tube bundle. Compared with other shell and tube heat exchangers, the coiled tube heat exchanger has received extensive attention due to its compact structure and good heat transfer effect. However, in the existing coiled tube heat exchangers, the fluid in the spiral heat exchange tube is a spiral flow or has a phase change, so the convection heat transfer coefficient in the tube is large; and the adjacent inner and outer coils in the shell are supported by pads, and the heat exchange tubes in the same layer are arranged closely, so the turbulence effect of the shell fluid is insufficient and the convection heat transfer coefficient is small.

[0003] For example, the single-stream reducing tube winding heat exchanger with the publication number of CN207147276U includes a tube box, a shell, a tube sheet, a core tube, a small-diameter winding tube, a large-diameter winding tube, a positioning strip, a shell-side inlet and outlet tube, a tube-side inlet and outlet tube and an ear-type support, characterized in that: the core tube is wound with two structures of small-diameter winding tube and large-diameter winding tube outside, and there are two ways of arrangement. The first is that each layer of winding tube is formed by alternating winding of small-diameter winding tube and large-diameter winding tube, and the second is that several layers of small-diameter winding tube are wound inside, and several layers of large-diameter winding tube are wound outside; the winding method and spiral angle of adjacent inner and outer layers of winding tube are the same, but the winding direction is opposite, and the adjacent inner and outer layers of winding tube are in direct contact, and the axial spacing between the same layer of winding tubes is positioned by positioning strips, and the two tube heads of the small-diameter winding tube and the large-diameter winding tube are arranged on the tube sheets at both ends at intervals. The utility model adopts two winding methods of small-diameter winding tube and large-diameter winding tube, which increases the heat exchange area and the gap between the winding tube layers, and enhances the heat exchange effect of the shell-side fluid.

[0004] However, when the winding pipe in the inner cavity of the pipe box is damaged, it is inconvenient to replace it, and the applicability is poor. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, the utility model aims to provide a novel single-flow pipe-wrap heat exchange device, which can solve the problem that when the pipes in the inner cavity of the pipe box are damaged, it is inconvenient to replace them and the applicability is poor.

[0007] In order to solve the above technical problems, the utility model provides a novel single-flow coil-wrap heat exchange device, which adopts the following technical solution: it includes a box body, a box cover is hinged on the top of the rear of the box body, a fixing mechanism is fixedly connected to the front of the box body, a connecting mechanism is fixedly connected to the front of the box cover, a heat exchange pipe is provided between the box body and the box cover, and a coil is provided on the outer surface of the heat exchange pipe.

[0008] Optionally, the top of both front and rear sides of the box body are provided with box body heat exchange grooves compatible with the heat exchange pipes, the top of both front and rear sides of the box body are provided with box body pipe winding grooves compatible with the winding pipes, the bottom of both front and rear sides of the box cover are provided with box cover heat exchange grooves compatible with the heat exchange pipes, and the bottom of both front and rear sides of the box cover are provided with box cover pipe winding grooves compatible with the winding pipes.

[0009] By adopting the above technical solution, the heat exchange pipe and the winding pipe are fixed.

[0010] Optionally, the fixing mechanism includes a fixing block, a skateboard is inserted into the left side of the fixing block, a skateboard cavity matched with the skateboard is opened in the fixing block, the skateboard is slidably connected in the skateboard cavity, a spring plate is provided on the right side of the skateboard, a spring is fixedly connected to the left side of the spring plate, the spring is sleeved on the outside of the skateboard, a spring cavity matched with the spring is opened in the fixing block, a triangular plate is fixedly connected to the right side of the skateboard, and the connecting mechanism is arranged on the top of the fixing block.

[0011] By adopting the above technical solution, the connecting mechanism is fixed.

[0012] Optionally, the connecting mechanism includes a moving block, the bottom of the moving block is fixedly connected to a connecting plate, the top of the fixed block is provided with a fixing groove adapted to the connecting plate, and the connecting plate is provided with a connecting groove adapted to the triangular plate.

[0013] By adopting the above technical solution, the box cover is fixed on the box body.

[0014] Optionally, heat exchange pipe limiting blocks are sleeved on both upper and lower sides of the heat exchange pipe, and pipe winding limiting blocks are sleeved on both upper and lower sides of the pipe winding.

[0015] By adopting the above technical solution, the heat exchange pipe and the bypass pipe are prevented from moving.

[0016] Optionally, the heat exchange pipe is made of stainless steel.

[0017] By adopting the above technical solution, heat exchange at high temperature is facilitated.

[0018] In summary, the utility model includes at least one of the following beneficial effects: by arranging the fixing mechanism and the connecting mechanism to cooperate with each other, when the winding pipe in the box body is damaged, it is convenient to replace it, and the applicability is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the box body and box cover structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixing mechanism and the connecting mechanism of the utility model;

[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model.

[0024] Explanation of the reference numerals: 1. box body; 101. box body heat exchange groove; 102. box body winding groove; 2. box cover; 201. box cover heat exchange groove; 202. box cover winding groove; 3. fixing mechanism; 301. fixing block; 302. slide plate cavity; 303. slide plate; 304. spring plate; 305. spring; 306. spring cavity; 307. triangular plate; 308. fixing groove; 4. connecting mechanism; 401. moving block; 402. connecting plate; 403. connecting groove; 5. heat exchange pipe; 501. heat exchange pipe limit block; 6. winding pipe; 601. winding pipe limit block. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-4 The utility model is described in further detail.

[0026] Embodiment 1, refer to Figure 1 In order to solve the problem that it is inconvenient to replace the winding tube in the inner cavity of the tube box when it is damaged and the applicability is poor, in this embodiment, the utility model discloses a novel single-flow winding tube type heat exchange device, including a box body 1, a box cover 2 is hinged on the top of the rear of the box body 1, a fixing mechanism 3 is fixedly connected to the front of the box body 1, a connecting mechanism 4 is fixedly connected to the front of the box cover 2, a heat exchange pipe 5 is provided between the box body 1 and the box cover 2, and a winding tube 6 is provided on the outer surface of the heat exchange pipe 5.

[0027] Based on the above features, the working principle of this embodiment is: during heat exchange, the heat exchange fluid is added to the heat exchange pipe 5, and the heat exchange medium is added to the coil 6 to exchange heat with the heat exchange fluid. When the coil 5 is damaged, the fixing mechanism 3 is started, the fixing mechanism 3 cancels the fixation of the connecting mechanism 4, the box cover 2 is opened from the top of the box body 1, the coil 6 is replaced, the box cover 2 is closed, and the fixing mechanism 3 fixes the connecting mechanism 4 to complete the replacement of the coil 6. The operation is convenient.

[0028] Example 2, refer to Figure 2-4 In order to solve the problem that it is inconvenient to replace the winding pipe in the inner cavity of the pipe box when it is damaged and the applicability is poor, based on the same concept as the above-mentioned embodiment 1, the new single-flow winding pipe heat exchange device also includes a box body heat exchange groove 101 adapted to the heat exchange pipe 5 on the top of the front and rear sides of the box body 1, a box body winding pipe groove 102 adapted to the winding pipe 6 on the top of the front and rear sides of the box body 1, a box cover heat exchange groove 201 adapted to the heat exchange pipe 5 on the bottom of the front and rear sides of the box cover 2, and a box cover winding pipe groove 202 adapted to the winding pipe 6 on the bottom of the front and rear sides of the box cover 2. The fixing mechanism 3 includes a fixing block 301, a slide plate 303 is inserted on the left side of the fixing block 301, and a slide plate cavity 302 adapted to the slide plate 303 is opened in the fixing block 301. The slide plate 303 is slidably connected to the slide plate cavity In the cavity 302, a spring plate 304 is provided on the right side of the slide plate 302, a spring 305 is fixedly connected to the left side of the spring plate 304, the spring 305 is sleeved on the outside of the slide plate 303, a spring cavity 306 adapted to the spring 305 is provided in the fixed block 301, a triangular plate 307 is fixedly connected to the right side of the slide plate 303, a connecting mechanism 4 is arranged on the top of the fixed block 301, the connecting mechanism 4 includes a moving block 401, a connecting plate 402 is fixedly connected to the bottom of the moving block 401, a fixing groove 308 adapted to the connecting plate 402 is provided on the top of the fixed block 301, a connecting groove 403 adapted to the triangular plate 307 is provided on the connecting plate 402, heat exchange pipe limit blocks 501 are sleeved on the upper and lower sides of the heat exchange pipe 5, and pipe winding limit blocks 601 are sleeved on the upper and lower sides of the pipe winding 6, and the heat exchange pipe 5 is made of stainless steel.

[0029] Based on the above features, the working principle of this embodiment is: when the winding tube 6 needs to be replaced, the slide plate 303 is pulled to the left, the slide plate 303 drives the triangular plate 307 to move to the left, the triangular plate 307 moves from the connecting groove 403 to the slide plate cavity 302, the slide plate 303 drives the spring plate 304 to move to the left, the spring plate 304 squeezes the spring 305, and the moving block 401 is pulled upward, the moving block 401 drives the connecting plate 402 to move, and moves the connecting plate 402 to the outside of the fixed groove 308, releases the pull plate, and the spring plate 304 moves to the right under the action of the elastic force of the spring 305, the spring plate 304 drives the slide plate 303 to move to the right, the slide plate 303 drives the triangular plate 307 to move to the right, the triangular plate 307 moves to the fixed groove 308, the box cover 2 is opened, and the heat exchange tube is taken out. 5 and the winding pipe 6, replace the winding pipe 6, put the replaced winding pipe 6 and the heat exchange pipe 5 back to their original positions, close the box cover 2, move the connecting plate 402 into the fixing groove 308, the connecting plate 402 pushes the triangular plate 307 to move to the left, the triangular plate 307 pushes the slide plate 303 to move to the left, the slide plate 303 drives the spring plate 304 to move to the left, the spring plate 304 squeezes the spring 305, when the horizontal height of the triangular plate 307 is the same as the horizontal height of the connecting groove 403, the spring plate 304 moves to the right under the action of the elastic force of the spring 305, the spring plate 304 drives the slide plate 303 to move to the right, the slide plate 303 drives the triangular plate 307 to move to the right, the triangular plate 307 moves into the connecting groove 403, fixes the connecting plate 402, and completes the replacement of the winding pipe 6.

[0030] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A novel single-stream pipe-wound heat exchange device, comprising a box (1), characterized in that: A box cover (2) is hingedly connected to the top of the rear of the box body (1), a fixing mechanism (3) is fixedly connected to the front of the box body (1), and a connecting mechanism (4) is fixedly connected to the front of the box cover (2). A heat exchange pipe (5) is provided between the box body (1) and the box cover (2), and a winding pipe (6) is provided on the outer surface of the heat exchange pipe (5).

2. A novel single-stream pipe-wound heat exchange device according to claim 1, characterized in that: The tops of both front and rear sides of the box body (1) are provided with box body heat exchange grooves (101) adapted to the heat exchange pipe (5), the tops of both front and rear sides of the box body (1) are provided with box body pipe winding grooves (102) adapted to the pipe winding (6), the bottoms of both front and rear sides of the box cover (2) are provided with box cover heat exchange grooves (201) adapted to the heat exchange pipe (5), and the bottoms of both front and rear sides of the box cover (2) are provided with box cover pipe winding grooves (202) adapted to the pipe winding (6).

3. A novel single-stream pipe-wound heat exchange device according to claim 1, characterized in that: The fixing mechanism (3) comprises a fixing block (301), a sliding plate (303) is inserted on the left side of the fixing block (301), a sliding plate cavity (302) adapted to the sliding plate (303) is provided in the fixing block (301), the sliding plate (303) is slidably connected in the sliding plate cavity (302), a spring plate (304) is provided on the right side of the sliding plate (303), a spring (305) is fixedly connected to the left side of the spring plate (304), the spring (305) is sleeved on the outside of the sliding plate (303), a spring cavity (306) adapted to the spring (305) is provided in the fixing block (301), a triangular plate (307) is fixedly connected to the right side of the sliding plate (303), and the connecting mechanism (4) is arranged on the top of the fixing block (301).

4. A novel single-stream pipe-wound heat exchange device according to claim 3, characterized in that: The connecting mechanism (4) comprises a moving block (401), the bottom of the moving block (401) is fixedly connected to a connecting plate (402), the top of the fixed block (301) is provided with a fixing groove (308) adapted to the connecting plate (402), and the connecting plate (402) is provided with a connecting groove (403) adapted to the triangular plate (307).

5. The novel single-stream pipe-wound heat exchange device according to claim 1 is characterized in that: Heat exchange pipe limit blocks (501) are sleeved on both upper and lower sides of the heat exchange pipe (5), and pipe coil limit blocks (601) are sleeved on both upper and lower sides of the coil (6).

6. The novel single-stream pipe-wound heat exchange device according to claim 1 is characterized in that: The heat exchange pipe (5) is made of stainless steel.

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