Multi-stage hydrogenation circulating heat exchanger system

Abstract

The utility model relates to the technical field of heat exchangers, in particular to a multistage hydrogenation circulation heat exchanger system which comprises a heat exchanger body used for heat recovery, flow guide openings used for gas circulation are formed in the end faces of the heat exchanger body respectively, a back plate is fixedly connected to the heat exchanger body, and a heat exchange mechanism used for heat exchange is arranged on the back plate. A transmission mechanism used for adjusting the medium circulation speed is further arranged on the back plate, the heat exchange mechanism comprises a plurality of cavities formed in the heat exchanger body, a plurality of pump bodies are fixedly installed on the back plate, and valves are fixedly installed on the flow guide pipes a. The flow velocity of a medium can be adjusted, so that temperature control, energy utilization efficiency improvement, reaction temperature control and equipment size reduction in a multi-stage hydrogenation circulating heat exchanger system can be realized, process optimization and economical efficiency improvement are realized, in addition, the mechanism is simple in structure, convenient to operate and capable of realizing automatic control, and the production cost is reduced. The production efficiency and the stability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a multi-stage hydrogenation cycle heat exchanger system. Background Art

[0002] The multi-stage hydrogenation cycle heat exchanger is a heat exchange equipment used in the hydrogenation cycle reaction process. In the chemical industry, the hydrogenation cycle reaction is an important process, which requires effective control and utilization of the heat generated in the reactor to maintain the temperature and pressure of the reaction. The multi-stage hydrogenation cycle heat exchanger transfers the heat in the reactor to the hydrogenation cycle gas through multi-stage heat exchange, and at the same time transfers the heat of the cooling medium to the reactor to achieve heat recovery and utilization. The existing multi-stage hydrogenation cycle heat exchanger is composed of multiple heat exchangers. During use, the heat situation between the multiple heat exchangers will change. The heat load of the heat exchanger is low, but the flow regulation effect of the medium is inaccurate, which will cause excessive medium to pass through the heat exchanger, resulting in energy waste, and the reaction temperature cannot be accurately controlled, affecting the stability of the reaction and the quality of the product. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a multi-stage hydrogenation cycle heat exchanger system, which has the advantage of being able to achieve temperature control of the multi-stage hydrogenation cycle heat exchanger system, thereby improving the process effect, and solving the problem of inaccurate flow regulation effect, which will cause excessive medium to pass through the heat exchanger and cause energy waste.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A multi-stage hydrogenation cycle heat exchanger system includes a heat exchanger body for heat recovery, the end faces of the heat exchanger body are respectively provided with flow guide ports for gas circulation, a back plate is fixedly connected to the heat exchanger body, a heat exchange mechanism for heat exchange is provided on the back plate, and a transmission mechanism for adjusting the medium circulation speed is also provided on the back plate.

[0006] The heat exchange mechanism includes multiple cavities arranged in the heat exchanger body, the cavities are fixedly connected to the heat exchange frame, multiple pump bodies are fixedly installed on the back plate, and the output ends of the pump bodies are respectively fixedly connected to two guide pipes a for medium circulation, and valves are fixedly installed on the guide pipes a.

[0007] Preferably, the end of the flow guide pipe a extends to the inside of the adjacent cavity, and the two flow guide pipes a are symmetrically distributed with the heat exchange frame as the center.

[0008] Preferably, the two valves on the same pump body are respectively fixedly connected to a rotating shaft a and a rotating shaft b, and a linkage member is provided between the rotating shaft a and the rotating shaft b.

[0009] Preferably, the transmission mechanism includes a connecting disk fixedly connected to the rotating shaft a, a connecting block fixedly connected to the connecting disk, a vertically movable motor is also provided on the back plate, a transmission block for driving the connecting disk to rotate is fixedly connected to the end of the motor, the transmission block and the multiple connecting blocks are in the same plane, and a temperature sensor is installed in the cavity.

[0010] Preferably, the back plate is fixedly connected to a frame, the motor is fixedly mounted at the bottom of the frame, the output end of the motor is fixedly connected to a screw, a weight plate is threadedly connected to the screw, the weight plate is fitted to the inner wall of the frame, and the motor is fixedly mounted on the weight plate.

[0011] Preferably, the linkage member includes pulleys mounted on the rotating shaft a and the rotating shaft b, and the pulleys are connected via a belt transmission.

[0012] By means of the above technical solution, the utility model provides a multi-stage hydrogenation cycle heat exchanger system, which has at least the following beneficial effects:

[0013] 1. The multi-stage hydrogenation cycle heat exchanger system can adjust the flow rate of the medium, so that the temperature in the multi-stage hydrogenation cycle heat exchanger system can be controlled, the energy utilization efficiency can be improved, the reaction temperature can be controlled, and the process can be optimized and the economy can be improved. In addition, the structure of this mechanism is simple and easy to operate, and automatic control can be realized to improve production efficiency and stability.

[0014] 2. The multi-stage hydrogenation cycle heat exchanger system can achieve temperature control of the multi-stage hydrogenation cycle heat exchanger system by adjusting the medium flow rate, thereby improving the process effect and ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model in the front view direction;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the back side of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the heat exchange mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the external connection structure of the transmission block of the utility model.

[0020] Reference numerals:

[0021] 100, back plate; 101, heat exchanger body; 102, flow guide port; 103, frame; 104, pump body; 105, flow guide pipe a; 106, heat exchange frame; 107, cavity;

[0022] 200, heat exchange mechanism; 201, temperature sensor; 202, valve; 203, rotating shaft a; 204, rotating shaft b; 205, linkage;

[0023] 300, transmission mechanism; 301, motor; 302, screw; 303, motor; 304, transmission block; 305, connecting plate; 306, connecting block; 307, load-bearing plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] A multi-stage hydrogenation cycle heat exchanger system provided by some embodiments of the utility model is described below in conjunction with the accompanying drawings.

[0026] Embodiment 1:

[0027] Combination Figure 1-Figure 4 As shown, the utility model provides a multi-stage hydrogenation cycle heat exchanger system, including a heat exchanger body 101 for heat recovery, the end faces of the heat exchanger body 101 are respectively provided with flow guide ports 102 for gas circulation, a back plate 100 is fixedly connected to the heat exchanger body 101, and a heat exchange mechanism 200 for heat exchange is provided on the back plate 100. The multi-stage heat exchange can be combined in series or in parallel as needed to realize the continuous multi-stage heat exchange. Through the multi-stage heat exchange, the temperature difference between the hydrogenation cycle gas and the cooling medium can be fully utilized to improve the energy utilization efficiency. The back plate 100 is also provided with a transmission mechanism 300 for adjusting the medium circulation speed so that the heat can be more fully transferred, thereby improving the energy utilization efficiency and reducing the waste of energy.

[0028] The heat exchange mechanism 200 includes a plurality of cavities 107 arranged in the heat exchanger body 101, and the cavity 107 is fixedly connected to the heat exchange frame 106. A plurality of pump bodies 104 are fixedly installed on the back plate 100. The output ends of the pump bodies 104 are respectively fixedly connected to two flow guide pipes a105 for medium circulation, and the flow guide pipes a105 are fixedly installed with valves 202. When the pump body 104 is started, the medium is injected into the cavity 107 through the flow guide pipe a105. Then, the medium circulates in the cavity 107 to absorb the heat on the heat exchange frame 106, and then the medium that absorbs the excess heat is discharged through another flow guide pipe a105 to realize the circulation of heat recovery. The medium is gas.

[0029] Specifically, the end of the flow guide pipe a105 extends to the inside of the adjacent cavity 107, and the two flow guide pipes a105 are symmetrically distributed with the heat exchange frame 106 as the center, so as to achieve maximum flow of the medium.

[0030] Furthermore, the two valves 202 on the same pump body 104 are respectively fixedly connected to the rotating shaft a203 and the rotating shaft b204, and a linkage 205 is provided between the rotating shaft a203 and the rotating shaft b204. The valve 202 is provided to facilitate controlling the flow of the medium according to the heat inside the heat exchanger, and the reaction temperature can be controlled, thereby ensuring the stable progress of the reaction.

[0031] The linkage member 205 includes pulleys mounted on the rotating shaft a203 and the rotating shaft b204. The pulleys are connected by belt transmission. The rotating shaft a203 can drive the rotating shaft b204 to rotate through the linkage member 205, thereby realizing synchronous adjustment of the medium in and out.

[0032] According to the embodiments, by adjusting the medium circulation velocity, the temperature of the multi-stage hydrogenation cycle heat exchanger system can be controlled, thereby improving the process effect and ensuring the product quality.

[0033] Embodiment 2:

[0034] Combination Figure 3 and Figure 4 As shown, on the basis of the first embodiment, the transmission mechanism 300 includes a connection disk 305 fixedly connected to the rotating shaft a203, a connection block 306 is fixedly connected to the connection disk 305, and a motor 303 that can move vertically is also provided on the back plate 100. A transmission block 304 for driving the connection disk 305 to rotate is fixedly connected to the end of the motor 303. The transmission block 304 and the plurality of connection blocks 306 are in the same plane. A temperature sensor 201 and a single-chip microcomputer are installed in the cavity 107. The temperature sensor 201 detects the heat condition of a single position in the multi-stage heat exchange process, and then the motor 303 moves to the position where the heat changes. At the connecting disk 305, the motor 303 is then started to drive the transmission block 304 to rotate, the transmission block 304 rotates and contacts the connecting block 306 to rotate the connecting disk 305, and the connecting disk 305 drives the valve 202 to rotate through the rotating shaft a203, and then the flow rate of the medium can be adjusted, so that the temperature in the multi-stage hydrogenation cycle heat exchanger system can be controlled, the energy utilization efficiency can be improved, the reaction temperature can be controlled, and the equipment size can be reduced, thereby realizing the optimization of the process and the improvement of the economy. In addition, this mechanism has a simple structure and is easy to operate, and can realize automatic control and improve production efficiency and stability.

[0035] Specifically, the back plate 100 is fixedly connected to the frame 103, the motor 301 is fixedly installed at the bottom of the frame 103, the output end of the motor 301 is fixedly connected to the screw 302, the screw 302 is threadedly connected to the weight plate 307, the weight plate 307 and the inner wall of the frame 103 are in contact with each other, the motor 303 is fixedly installed on the weight plate 307, the motor 301 is started to drive the screw 302 to rotate, the rotation of the screw 302 drives the weight plate 307 to move, the motor 303 moves with the weight plate 307, and then the valve 202 can be adjusted according to the heat exchange conditions in different situations, so that intelligent control can be realized, thereby achieving process optimization and economic improvement.

[0036] It can be known from the above embodiments that: first, the hydrogenation circulating gas flows out from the reactor and enters the heat exchanger body 101 through the guide port 102, and then the hydrogenation circulating gas circulates in the heat exchanger body 101 from top to bottom, and then the heat exchange frame 106 absorbs the hydrogenation circulating gas, and then the pump body 104 starts to inject the medium into the cavity 107 through the guide pipe a105, and then the medium circulates in the cavity 107 to absorb the heat on the heat exchange frame 106, and then the medium that absorbs the superheat is discharged through another guide pipe a105 to realize the circulation recovery of heat, and the medium is gas.

[0037] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage hydrogenation cycle heat exchanger system, comprising a heat exchanger body (101) for heat recovery, wherein the end surfaces of the heat exchanger body (101) are respectively provided with flow guide ports (102) for gas circulation, wherein: A back plate (100) is fixedly connected to the heat exchanger body (101), a heat exchange mechanism (200) for heat exchange is provided on the back plate (100), and a transmission mechanism (300) for adjusting the flow speed of the medium is also provided on the back plate (100); The heat exchange mechanism (200) comprises a plurality of cavities (107) arranged in a heat exchanger body (101), the cavities (107) being fixedly connected to a heat exchange frame (106), a plurality of pump bodies (104) being fixedly mounted on a back plate (100), the output ends of the pump bodies (104) being respectively fixedly connected to two flow guide pipes a (105) for medium circulation, and valves (202) being fixedly mounted on the flow guide pipes a (105).

2. The multi-stage hydrogenation cycle heat exchanger system according to claim 1, characterized in that: The end of the flow guide pipe a (105) extends to the inside of the adjacent cavity (107), and the two flow guide pipes a (105) are symmetrically distributed with the heat exchange frame (106) as the center.

3. The multi-stage hydrogenation cycle heat exchanger system according to claim 1, characterized in that: The two valves (202) on the same pump body (104) are respectively fixedly connected to a rotating shaft a (203) and a rotating shaft b (204), and a linkage member (205) is provided between the rotating shaft a (203) and the rotating shaft b (204).

4. The multi-stage hydrogenation cycle heat exchanger system according to claim 3, characterized in that: The transmission mechanism (300) comprises a connection disk (305) fixedly connected to the rotating shaft a (203), a connection block (306) fixedly connected to the connection disk (305), a vertically movable motor (303) fixedly connected to the end of the motor (303) for driving the connection disk (305) to rotate, the transmission block (304) and the plurality of connection blocks (306) being in the same plane, and a temperature sensor (201) being installed in the cavity (107).

5. The multi-stage hydrogenation cycle heat exchanger system according to claim 4, characterized in that: The back plate (100) is fixedly connected to a frame (103), the motor (301) is fixedly mounted at the bottom of the frame (103), the output end of the motor (301) is fixedly connected to a screw rod (302), a weight plate (307) is threadedly connected to the screw rod (302), the weight plate (307) and the inner wall of the frame (103) are in contact with each other, and the motor (303) is fixedly mounted on the weight plate (307).

6. The multi-stage hydrogenation cycle heat exchanger system according to claim 3, characterized in that: The linkage member (205) comprises pulleys mounted on the rotating shaft a (203) and the rotating shaft b (204), and the pulleys are connected via a belt transmission.

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