High-efficiency horizontal type detachable heat transfer device

Abstract

The utility model discloses a high-efficiency horizontal detachable heat transfer device which comprises a shell, an inner cavity of the shell is divided into an upper heat exchange cavity and a lower heat exchange cavity through a layering partition plate, an integrated tube nest I used for heat exchange is installed in the upper heat exchange cavity, and an integrated tube nest II used for heat exchange is installed in the lower heat exchange cavity. An inlet I communicated with the upper heat exchange cavity and an outlet I communicated with the integrated tube nest I are formed in the top of the upper heat exchange cavity, an outlet II communicated with the lower heat exchange cavity and an inlet II communicated with the integrated tube nest II are formed in the bottom of the lower heat exchange cavity, and a flow guide pipe I communicated with the outlet I and the inlet II is arranged on one side of the layering partition plate. And a flow guide pipe II for communicating the upper heat exchange cavity with the lower heat exchange cavity is arranged on the partition plate. The shell is divided into the upper heat exchange cavity and the lower heat exchange cavity through the layering partition plate, when two strands of materials flow reversely, gas in the tube nest is eliminated through a gas-liquid mixture, and the heat exchange efficiency is improved; and a flow guide pipe I and a flow guide pipe II are arranged, so that the problem that gas in the gas-liquid mixture is gathered in the heat exchanger is effectively solved.

Description

Technical Field

[0001] The utility model relates to a heat exchanger, in particular to a high-efficiency horizontal detachable heat transfer device. Background Art

[0002] In the process of chemical production, a chemical equipment heat exchanger is a device that can transfer part of the heat of a hot fluid to a cold fluid. Its main function is to ensure the specific temperature required by the medium in the process, and it is also one of the main devices to improve energy utilization efficiency. Its working principle is to achieve heat exchange twice in the same device through two different heat exchange methods, thereby improving the heat exchange efficiency.

[0003] However, when the materials are gas-liquid two-phase, when the two materials flow countercurrently, since the gas will accumulate at the top of the tube side or the shell side, causing the gas to occupy the original space of the liquid, and the heat transfer coefficient of the gas is relatively low, which greatly affects the heat transfer efficiency. But if the gas-liquid two-phase materials flow cocurrently, the heat transfer efficiency of the co-current flow mode of the hot and cold media is relatively low. Due to the scaling and blockage that will occur in the gap in the middle of the tube side of the heat exchanger, the conventional heat exchanger is cleaned after breaking the shell, but the pressure vessel does not allow the shell to be broken. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a high-efficiency horizontal detachable heat transfer device with reasonable design, simple structure and convenient operation in view of the deficiencies of the prior art. This device not only has convenient cleaning, but also is applicable to the countercurrent installation of gas-liquid two-phase mixtures.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A high-efficiency horizontal detachable heat transfer device, characterized in that the device includes a shell, the inner cavity of the shell is separated into two upper and lower chambers by a layered partition plate, an integrated tube bundle Ⅰ for heat exchange is installed in the upper heat exchange chamber, and an integrated tube bundle Ⅱ for heat exchange is installed in the lower heat exchange chamber. An inlet Ⅰ communicating with the upper heat exchange chamber and an outlet Ⅰ communicating with the integrated tube bundle Ⅰ are provided at the top of the upper heat exchange chamber. An outlet Ⅱ communicating with the lower heat exchange chamber and an inlet Ⅱ communicating with the integrated tube bundle Ⅱ are provided at the bottom of the lower heat exchange chamber. A diversion tube Ⅰ connecting the outlet Ⅰ and the inlet Ⅱ is provided on one side of the layered partition plate, and a diversion tube Ⅱ connecting the upper heat exchange chamber and the lower heat exchange chamber is provided on the partition plate. The diversion tube Ⅱ is vertically arranged, and the upper pipe orifice of the diversion tube Ⅱ is higher than the integrated tube bundle Ⅰ.

[0007] The technical problem to be solved by the present utility model can also be achieved through the following technical solution. The integrated tube bundle I and the integrated tube bundle II are formed by connecting a number of horizontally arranged tubes end to end. The bottom opening of the integrated tube bundle I is closed, the top opening of the integrated tube bundle I is connected to the upper pipe orifice of the diversion tube I, the top opening of the integrated tube bundle II is closed, and the bottom opening of the integrated tube bundle II is connected to the lower pipe orifice of the diversion tube I.

[0008] The technical problem to be solved by the present utility model can also be achieved through the following technical solution. A feed pipe extending to the stratified partition is connected at the inlet I, and a discharge pipe extending to the stratified partition is connected at the outlet II.

[0009] The technical problem to be solved by the present utility model can also be achieved through the following technical solution. Baffle plates for extending the flow distance are installed at the integrated tube bundle I and the integrated tube bundle II in the shell, and the baffle plates are arranged vertically.

[0010] The technical problem to be solved by the present utility model can also be achieved through the following technical solution. The shell is formed by splicing a tube body and left and right end heads provided at both ends of the tube body. The left end head and the end of the tube body, and the right end head and the end of the tube body are butt-jointed through flanges, and a sealing ring is installed at the butt-joint.

[0011] Compared with the prior art, by providing a stratified partition, the shell of the present utility model is divided into an upper heat exchange chamber and a lower heat exchange chamber, the flow distance is extended, and when two streams of materials flow countercurrently, the gas in the gas-liquid mixture eliminates the gas in the tube bundle, realizing sufficient heat exchange and improving the heat exchange efficiency; by providing the diversion tube I and the diversion tube II, the problem of gas accumulation in the gas-liquid mixture in the heat exchanger is effectively avoided, and the heat exchange effect is improved; by adopting the detachable manner of double end heads, when the tube bundle is scaled or blocked in the later stage, it is convenient to clean. The high-efficiency horizontal detachable heat transfer device described in the present utility model has a simple structure and is convenient to clean, and is particularly suitable for gas-liquid two-phase mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a structural diagram of the high-efficiency horizontal detachable heat transfer device described in the present utility model;

[0013] Figure 2 is a structural diagram of the left end head;

[0014] Figure 3 is a structural diagram of the diversion tube I.

[0015] In the figure: 1 - shell, 2 - upper heat exchange chamber, 3 - outlet II, 4 - inlet II, 5 - stratified partition, 6 - right end head, 7 - lower heat exchange chamber, 8 - diversion tube I, 9 - diversion tube II, 10 - integrated tube bundle II, 11 - integrated tube bundle I, 12 - baffle plate, 13 - outlet I, 14 - inlet I, 15 - feed pipe, 16 - discharge pipe. Detailed implementation mode

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0017] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0018] Refer to Figures 1-3 , a high-efficiency horizontal detachable heat transfer device, which includes a housing 1. The inner cavity of the housing 1 is separated into an upper heat exchange cavity 2 and a lower heat exchange cavity 7 by a layered partition 5. An integrated tube bundle I 11 for heat exchange is installed in the upper heat exchange cavity 2, and an integrated tube bundle II 10 for heat exchange is installed in the lower heat exchange cavity 7. An inlet I 14 communicating with the upper heat exchange cavity 2 and an outlet I 13 communicating with the integrated tube bundle I 11 are provided at the top of the upper heat exchange cavity 2. An outlet II 3 communicating with the lower heat exchange cavity 7 and an inlet II 4 communicating with the integrated tube bundle II 10 are provided at the bottom of the lower heat exchange cavity 7. A diversion tube I 8 connecting the outlet I 13 and the inlet II 4 is provided on one side of the layered partition 5. A diversion tube II 9 connecting the upper heat exchange cavity 2 and the lower heat exchange cavity 7 is provided on the partition partition 5. The diversion tube II 9 is vertically arranged, and the upper pipe orifice of the diversion tube II 9 is higher than the integrated tube bundle I 11.

[0019] The integrated tube bundle I 11 and the integrated tube bundle II 10 are formed by connecting the heads and tails of a number of horizontally arranged tubes. The bottom opening of the integrated tube bundle I 11 is closed, the top opening of the integrated tube bundle I 11 is connected to the upper pipe orifice of the diversion tube I 8, the top opening of the integrated tube bundle II 10 is closed, and the bottom opening of the integrated tube bundle II 10 is connected to the lower pipe orifice of the diversion tube I 8.

[0020] A feed pipe 15 extending to the layered partition 5 is connected at the inlet I 14, and a discharge pipe 16 extending to the layered partition 5 is connected at the outlet II 3 to extend the process and improve the heat exchange efficiency.

[0021] Baffle plates 12 for extending the flow distance are installed at the integrated tube bundle I 11 and the integrated tube bundle II 10 in the housing, and the baffle plates 12 are vertically arranged.

[0022] The housing 1 is formed by splicing a tube body and left and right end caps 6 provided at both ends of the tube body. The left end cap and the end of the tube body, and the right end cap 6 and the end of the tube body are butted through flanges, and a sealing ring is installed at the butting place. Adopting the detachable method of double end caps, it is convenient to clean the scale or blockage around the tube bundle in the later stage.

[0023] The working process of the heat transfer device of the present utility model is as follows:

[0024] The gas-liquid two-phase mixture or pure liquid enters the shell side of the heat exchanger through the inlet II 4 of the housing 1. Since a layered partition plate 5 is installed in the middle of the housing, the liquid flows from left to right through the lower heat exchange cavity 7 to the right end cap 6, and then enters the upper heat exchange cavity 2 from the right end cap 6, and the flow direction is from right to left; and flows out through the outlet I 13 of the housing 1. Since the material flows from bottom to top, it is ensured that all the integrated tube bundles II 10 are immersed in the housing.

[0025] Another mixture containing gas-liquid two-phase enters from the inlet I 14 of the left end cap. Due to the action of the layered partition plate 5 in the left end cap, the material will enter the right end cap 6 of the integrated tube bundle I 11 from left to right in the integrated tube bundle I 11. Since the right end cap 6 contains a guide tube I 8, due to the existence of the guide tube I 8, all the lower parts of the guide tube I 8 are liquid, and the gas will be stored at the top of the guide tube I 8. Since the top of the guide tube I 8 is higher than the integrated tube bundle I 11, there is no gas phase space in the upper half of the integrated tube bundle I 11, and the heat exchange area of the integrated tube bundle I 11 can be fully utilized. The mixture containing gas-liquid two-phase enters the lower half of the right end cap 6 through the guide tube I 8. Therefore, the mixture containing gas-liquid two-phase enters the integrated tube bundle II 10 from the right layer of the right end cap, and the gas-liquid two-phase material then flows out from the discharge pipe 16 of the left end cap. Due to the existence of the left discharge pipe 16, it is ensured that the lower tube pass of the integrated tube bundle II 10 is filled with liquid. Therefore, even if the mixture containing gas-liquid two-phase can be ensured to be immersed in the liquid phase space, the heat exchange efficiency is ensured.

[0026] When the voids between the tube bundles in the integrated tube bundle I 11 and the integrated tube bundle II 10 are scaled or blocked, by removing the left end cap, the integrated tube bundle I and the integrated tube bundle II can be taken out of the housing as a whole, and high-pressure water is used to clean the periphery of the tube bundle, and the housing does not need to be removed.

[0027] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent replacements or changes, and should be covered within the protection scope of the present utility model.

Claims

1. An efficient horizontal detachable heat transfer device, characterized in that The device comprises a housing. The inner cavity of the housing is separated by a layered partition plate into an upper heat exchange cavity and a lower heat exchange cavity. An integrated tube bundle Ⅰ for heat exchange is installed in the upper heat exchange cavity, and an integrated tube bundle Ⅱ for heat exchange is installed in the lower heat exchange cavity. An inlet Ⅰ communicating with the upper heat exchange cavity and an outlet Ⅰ communicating with the integrated tube bundle Ⅰ are provided at the top of the upper heat exchange cavity. An outlet Ⅱ communicating with the lower heat exchange cavity and an inlet Ⅱ communicating with the integrated tube bundle Ⅱ are provided at the bottom of the lower heat exchange cavity. A diversion tube Ⅰ connecting the outlet Ⅰ and the inlet Ⅱ is provided on one side of the layered partition plate. A diversion tube Ⅱ connecting the upper heat exchange cavity and the lower heat exchange cavity is provided on the partition plate. The diversion tube Ⅱ is vertically arranged, and the upper pipe orifice of the diversion tube Ⅱ is higher than the integrated tube bundle Ⅰ.

2. An efficient horizontal detachable heat transfer device according to claim 1, characterized in that, The integrated tube bundle Ⅰ and the integrated tube bundle Ⅱ are formed by connecting a plurality of horizontally arranged tubes end to end. The bottom opening of the integrated tube bundle Ⅰ is closed, and the top opening of the integrated tube bundle Ⅰ is connected to the upper pipe orifice of the diversion tube Ⅰ. The top opening of the integrated tube bundle Ⅱ is closed, and the bottom opening of the integrated tube bundle Ⅱ is connected to the lower pipe orifice of the diversion tube Ⅰ.

3. An efficient horizontal detachable heat transfer device according to claim 1, characterized in that, A feed pipe extending to the layered partition plate is connected at the inlet Ⅰ, and a discharge pipe extending to the layered partition plate is connected at the outlet Ⅱ.

4. An efficient horizontal detachable heat transfer device according to claim 1, characterized in that, Baffle plates for extending the flow distance are installed at the integrated tube bundle Ⅰ and the integrated tube bundle Ⅱ in the housing, and the baffle plates are vertically arranged.

5. An efficient horizontal detachable heat transfer device according to claim 1, characterized in that, The housing is formed by splicing a tube body and left and right end heads provided at both ends of the tube body. The left end head and the end of the tube body, and the right end head and the end of the tube body are butted through flanges, and sealing rings are installed at the butting parts.

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