Double-effect temperature control heat exchanger of ethylene glycol liquid phase hydrogenation device

Abstract

The utility model relates to the technical field of coal ethylene glycol equipment, in particular to a double-effect temperature control heat exchanger of an ethylene glycol liquid phase hydrogenation device, which comprises a heat exchanger body and a heat exchange pipeline, the inside of the heat exchanger body is connected with the heat exchange pipeline, and the inside of the heat exchanger body is connected with a liquid inlet pipe. And the interior of the heat exchanger body is connected with a liquid discharge pipe. A handle in the adjusting device drives a worm to rotate, the worm drives a worm gear to rotate, the worm gear drives a pin shaft to rotate so as to drive a cam to rotate, the cam leaves the surface of a transverse plate, at the moment, a spring has an original compressed state and springback is formed, the spring drives the transverse plate to ascend through elastic force and is attached to the surface of the cam, and the transverse plate drives a vertical plate to move. According to the double-effect temperature control heat exchanger, the vertical plate moves on the liquid discharging pipe, the flow of cold fluid is adjusted by adjusting the size of an opening between the through hole and the liquid discharging pipe and adjusting devices, the contact between the cold fluid and hot fluid is increased, the heat exchange efficiency is improved, and the working efficiency of the double-effect temperature control heat exchanger is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal-to-ethylene glycol equipment, in particular to a double-effect temperature-controlled heat exchanger for an ethylene glycol liquid-phase hydrogenation device. Background Art

[0002] The materials for the liquid phase hydrogenation unit of the coal-to-ethylene glycol distillation system come from two locations. During the 100% load production stage of the entire unit, in order to ensure the use conditions in the later stage of the use of the liquid phase hydrogenation catalyst, the reaction temperature needs to be increased to 95°C; at the same time, when the catalyst is replaced in the future, the optimal reaction temperature also needs to be adjusted, and a double-effect temperature-controlled heat exchanger is required for heat exchange.

[0003] For example, a double-effect temperature-controlled heat exchanger for a ethylene glycol liquid-phase hydrogenation device with an authorization announcement number of CN216245690U includes a heat exchanger, a first delivery pipe, a first output pipe, a second delivery pipe, and a second output pipe; although the document can meet the feed temperature of the liquid-phase hydrogenation reactor, achieve the optimal reaction conditions, and significantly improve the transmittance of the reacted material, while reducing the use cost of the catalyst; however, when in use, the double-effect temperature-controlled heat exchanger exchanges heat for the ethylene glycol liquid-phase hydrogenation device by exchanging the temperature between the hot liquid and the cold liquid. Since the flow rate of the cold liquid does not change inside the double-effect temperature-controlled heat exchanger, the contact time between the cold liquid and the hot liquid is relatively short, and the heat exchange efficiency is low, thereby reducing the working efficiency of the double-effect temperature-controlled heat exchanger; at the same time, when the double-effect temperature-controlled heat exchanger is performing heat exchange on the ethylene glycol liquid-phase hydrogenation device, since there is no filtering structure inside the double-effect temperature-controlled heat exchanger to filter the cold liquid and prevent the cold liquid from containing some impurities, these impurities accumulate inside the double-effect temperature-controlled heat exchanger for a long time, thereby reducing the use effect of the double-effect temperature-controlled heat exchanger. Utility Model Content

[0004] The utility model aims to solve the problem of reducing the working efficiency and use effect of the double-effect temperature-controlled heat exchanger, and proposes a double-effect temperature-controlled heat exchanger for an ethylene glycol liquid-phase hydrogenation device.

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

[0006] A double-effect temperature-controlled heat exchanger for an ethylene glycol liquid-phase hydrogenation device is designed, comprising a heat exchanger body and a heat exchange pipeline, the interior of the heat exchanger body is connected to the heat exchange pipeline, the interior of the heat exchanger body is connected to a liquid inlet pipe, the interior of the heat exchanger body is connected to a liquid discharge pipe, the outer wall of the heat exchanger body is fixedly connected to the outer wall of a shell, the interior of the shell is rotatably connected to a pin shaft, the interior of the shell is provided with an adjusting device, and the interior of the liquid inlet pipe is provided with a mounting device.

[0007] Preferably, the adjusting device includes a handle and a worm, the handle is fixedly connected to the outer wall of the worm, the worm is rotatably connected to the housing via a bearing, the worm is meshed with a worm wheel, the worm wheel is fixedly connected to a cam via a pin, and the outer wall of the cam is in contact with the outer wall of the cross plate.

[0008] Preferably, a vertical plate is fixedly connected to the outer wall of the horizontal plate, the vertical plate is clearance-matched with the heat exchanger body, and a through hole is opened inside the vertical plate.

[0009] Preferably, the heat exchanger body is fixedly connected to the horizontal plate via a spring, and the interior of the vertical plate fits the drain pipe.

[0010] Preferably, the mounting device comprises bolts and an annular plate, the bolts are threadedly connected to the annular plate and the liquid inlet pipe respectively, the outer wall of the annular plate is fixedly connected with a connecting block, and the connecting block is fixedly connected to the outer wall of the filter screen.

[0011] Preferably, the filter screen fits in with the interior of the liquid inlet pipe, and the annular plate fits in with the liquid inlet pipe.

[0012] The utility model proposes a double-effect temperature-controlled heat exchanger for an ethylene glycol liquid-phase hydrogenation device, which has the beneficial effects of: the handle in the adjusting device drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the pin shaft to rotate, and thus drives the cam to rotate, the cam leaves the surface of the horizontal plate, and at this time the spring has its original compressed state and rebounds, the spring drives the horizontal plate to rise through the elastic force and fits together with the cam surface, the horizontal plate drives the vertical plate to move, the vertical plate drives the through hole to move, the vertical plate moves on the drain pipe, and the flow rate of the cold fluid is adjusted by adjusting the opening size between the through hole and the drain pipe. When the double-effect temperature-controlled heat exchanger is set to perform heat exchange on the ethylene glycol liquid-phase hydrogenation device, the flow rate of the cold fluid is adjusted by the adjusting device, the contact between the cold liquid and the hot liquid is increased, the heat exchange efficiency becomes higher, and the working efficiency of the double-effect temperature-controlled heat exchanger is improved.

[0013] The annular plate in the installation device drives the connecting block and the filter to move, and the filter is moved to the inside of the liquid inlet pipe and fits with the inner wall of the liquid inlet pipe. At this time, the annular plate is also fit with the outer wall of the liquid inlet pipe. The staff rotates the bolts to the inside of the liquid inlet pipe, and installs the filter to the inside of the liquid inlet pipe to filter the cold fluid. When the double-effect temperature-controlled heat exchanger is used for heat exchange with the ethylene glycol liquid-phase hydrogenation device, the filter is installed to the inside of the liquid inlet pipe through the installation device to filter the cold fluid and filter out impurities, thereby improving the use effect of the double-effect temperature-controlled heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2for Figure 1 A schematic diagram of the front view structure of

[0016] Figure 3 for Figure 2 A side view structural schematic diagram of;

[0017] Figure 4 for Figure 2 A schematic diagram of the top view of the installation device;

[0018] Figure 5 for Figure 2 The structural diagram of the middle regulating device;

[0019] Figure 6 for Figure 2 Schematic diagram of the structure of the installation device.

[0020] In the figure: 1. heat exchanger body, 2. heat exchange pipe, 3. shell, 4. adjusting device, 401. handle, 402. worm, 403. worm gear, 404. cam, 405. cross plate, 4a1. slider, 4a2. sealing ring, 5. mounting device, 501. bolt, 502. annular plate, 503. connecting block, 504. filter screen, 6. vertical plate, 7. spring, 8. through hole, 9. liquid inlet pipe, 10. liquid outlet pipe. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] Embodiment 1:

[0023] See attached Figure 1-6 : In this embodiment, a double-effect temperature-controlled heat exchanger for an ethylene glycol liquid-phase hydrogenation device comprises a heat exchanger body 1 and a heat exchange pipe 2. The interior of the heat exchanger body 1 is connected to the heat exchange pipe 2. At this time, the hot fluid on the external ethylene glycol liquid-phase hydrogenation device is poured into the interior of the heat exchange pipe 2 through the opening at the left end of the heat exchange pipe 2. At this time, the heat inside the hot fluid is transferred to the heat exchange pipe 2, and the heat on the heat exchange pipe 2 is transferred to the cold fluid inside the heat exchanger body 1 for heat exchange. The interior of the heat exchanger body 1 is connected to a liquid inlet pipe 9, and the cold fluid flows into the interior of the heat exchanger body 1 through the liquid inlet pipe 9. The interior of the heat exchanger body 1 is connected to a liquid discharge pipe 10. At this time, the cold fluid that absorbs heat becomes hot and is discharged through the liquid discharge pipe 10. The outer wall of the heat exchanger body 1 is fixedly connected to the outer wall of the shell 3, and the interior of the shell 3 is rotatably connected to the pin shaft. The interior of the shell 3 is provided with an adjusting device 4, and the interior of the liquid inlet pipe 9 is provided with a mounting device 5;

[0024] See attached Figure 1-6: In this embodiment, the adjustment device 4 includes a handle 401 and a worm 402. The handle 401 is fixed to the outer wall of the worm 402. The handle 401 drives the worm 402 to rotate. The worm 402 is rotatably connected to the housing 3 through a bearing. The worm 402 is meshed with a worm wheel 403. The worm 402 drives the worm wheel 403 to rotate. The worm wheel 403 is fixedly connected to the cam 404 through a pin shaft. The worm wheel 403 drives the pin shaft to rotate, thereby driving the cam 404 to rotate. The outer wall of the cam 404 is in contact with the outer wall of the horizontal plate 405, and the cam 404 leaves the surface of the horizontal plate 405.

[0025] At this time, the spring 7 is in its original compressed state and rebounds. The spring 7 drives the horizontal plate 405 to rise by elastic force and fits together with the surface of the cam 404. The outer wall of the horizontal plate 405 is fixedly connected with the vertical plate 6. The horizontal plate 405 drives the vertical plate 6 to move. The vertical plate 6 and the heat exchanger body 1 are gap-matched. The vertical plate 6 is provided with a through hole 8 inside. The vertical plate 6 drives the through hole 8 to move. The vertical plate 6 moves on the drain pipe 10. The flow rate of the cold fluid is adjusted by adjusting the opening size between the through hole 8 and the drain pipe 10.

[0026] The handle 401 in the adjusting device 4 drives the worm 402 to rotate, the worm 402 drives the worm wheel 403 to rotate, the worm wheel 403 drives the pin to rotate, and thus drives the cam 404 to rotate, the cam 404 leaves the surface of the cross plate 405, at this time the spring 7 has the original compressed state to rebound, the spring 7 drives the cross plate 405 to rise by the elastic force, and fits together with the surface of the cam 404, the cross plate 405 drives the vertical plate 6 to move, the vertical plate 6 drives the through hole 8 to move, the vertical plate 6 moves on the drain pipe 10, and the flow rate of the cold fluid is adjusted by adjusting the opening size between the through hole 8 and the drain pipe 10. When the double-effect temperature-controlled heat exchanger is used for heat exchange with the ethylene glycol liquid-phase hydrogenation device, the flow rate of the cold fluid is adjusted by the adjusting device 4, the contact between the cold liquid and the hot liquid is increased, the heat exchange efficiency is increased, and the working efficiency of the double-effect temperature-controlled heat exchanger is improved.

[0027] See attached Figure 1-6 : In this embodiment, the heat exchanger body 1 is fixedly connected to the horizontal plate 405 by a spring 7. The material of the spring 7 is carbon spring steel. The elastic coefficient of the spring 7 is selected according to actual needs and can meet the work. The interior of the vertical plate 6 is in contact with the drain pipe 10. The mounting device 5 includes a bolt 501 and an annular plate 502. The bolt 501 is threadedly connected to the annular plate 502 and the liquid inlet pipe 9 respectively. At this time, the annular plate 502 is also in contact with the outer wall of the liquid inlet pipe 9.

[0028] The staff rotates the bolt 501 to the inside of the liquid inlet pipe 9, and installs the filter 504 into the inside of the liquid inlet pipe 9 to filter the cold fluid. The outer wall of the annular plate 502 is fixedly connected with a connecting block 503, and the connecting block 503 is fixedly connected to the outer wall of the filter 504. The filter 504 fits with the inside of the liquid inlet pipe 9. The annular plate 502 drives the connecting block 503 and the filter 504 to move, and moves the filter 504 to the inside of the liquid inlet pipe 9 and fits with the inner wall of the liquid inlet pipe 9. The annular plate 502 fits with the liquid inlet pipe 9.

[0029] The annular plate 502 in the installation device 5 drives the connecting block 503 and the filter screen 504 to move, and the filter screen 504 is moved to the inside of the liquid inlet pipe 9 and fits with the inner wall of the liquid inlet pipe 9. At this time, the annular plate 502 is also fit with the outer wall of the liquid inlet pipe 9. The staff rotates the bolt 501, rotates the bolt 501 to the inside of the liquid inlet pipe 9, and installs the filter screen 504 to the inside of the liquid inlet pipe 9 to filter the cold fluid. When the double-effect temperature-controlled heat exchanger is set to perform heat exchange on the ethylene glycol liquid-phase hydrogenation device, the filter screen 504 is installed to the inside of the liquid inlet pipe 9 through the installation device 5 to filter the cold fluid and filter out impurities, thereby improving the use effect of the double-effect temperature-controlled heat exchanger.

[0030] Working principle:

[0031] When the double-effect temperature-controlled heat exchanger is exchanging heat for the ethylene glycol liquid phase hydrogenation device, the staff first installs the filter screen 504 in the liquid inlet pipe 9 through the installation device 5. After completion, the cold fluid flows into the interior of the heat exchanger body 1 through the liquid inlet pipe 9. At this time, the hot fluid on the external ethylene glycol liquid phase hydrogenation device is poured into its interior through the opening at the left end of the heat exchange pipe 2. At this time, the heat inside the hot fluid is transferred to the heat exchange pipe 2, and the heat on the heat exchange pipe 2 is transferred to the cold fluid inside the heat exchanger body 1 for heat exchange. At this time, the cold fluid that absorbs heat becomes hot and is discharged through the drain pipe 10. At this time, the hot fluid inside the heat exchange pipe 2 loses heat and is discharged through the opening at the right end of the heat exchange pipe 2. When it is necessary to adjust the flow rate of the cold fluid discharged, the staff rotates the adjustment device 4 to adjust its flow rate. The specific adjustment process and installation process are as follows:

[0032] 1. Adjustment process:

[0033] The staff member rotates the handle 401, and the handle 401 drives the worm 402 to rotate, the worm 402 drives the worm wheel 403 to rotate, the worm wheel 403 drives the pin to rotate, and thus drives the cam 404 to rotate, and the cam 404 leaves the surface of the horizontal plate 405. At this time, the spring 7 has the original compressed state and rebounds. The spring 7 drives the horizontal plate 405 to rise through the elastic force and fits together with the surface of the cam 404. The horizontal plate 405 drives the vertical plate 6 to move, and the vertical plate 6 drives the through hole 8 to move. The vertical plate 6 moves on the drain pipe 10. The flow rate of the cold fluid is adjusted by adjusting the opening size between the through hole 8 and the drain pipe 10. After the adjustment is completed, the staff member stops rotating the handle 401;

[0034] 2. Installation process:

[0035] The staff moves the annular plate 502, and the annular plate 502 drives the connecting block 503 and the filter screen 504 to move, and moves the filter screen 504 to the inside of the liquid inlet pipe 9 and fits with the inner wall of the liquid inlet pipe 9. At this time, the annular plate 502 is also fitted with the outer wall of the liquid inlet pipe 9. The staff rotates the bolt 501, rotates the bolt 501 to the inside of the liquid inlet pipe 9, and installs the filter screen 504 to the inside of the liquid inlet pipe 9 to filter the cold fluid.

[0036] Embodiment 2:

[0037] See attached Figure 1-6 : In this embodiment, the adjusting device 4 also includes a slider 4a1 and a sealing ring 4a2. The slider 4a1 is fixed on the outer wall of the horizontal plate 405, and the slider 4a1 is slidably connected to the shell 3. The sealing ring 4a2 is fixed to the inside of the heat exchanger body 1, and the sealing ring 4a2 is in contact with the vertical plate 6. When the horizontal plate 405 moves, the horizontal plate 405 drives the slider 4a1 to move, and the slider 4a1 slides in the slide grooves on both sides of the shell 3 to limit the horizontal plate 405. The sealing ring 4a2 increases the sealing between the heat exchanger body 1 and the vertical plate 6.

[0038] Working principle:

[0039] When the horizontal plate 405 moves, the horizontal plate 405 drives the slider 4a1 to move. The slider 4a1 slides in the slide grooves on both sides of the shell 3 to limit the horizontal plate 405. The sealing ring 4a2 increases the sealing between the heat exchanger body 1 and the vertical plate 6.

[0040] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A double-effect temperature-controlled heat exchanger for an ethylene glycol liquid-phase hydrogenation device, comprising a heat exchanger body (1) and a heat exchange pipe (2), wherein the interior of the heat exchanger body (1) is connected to the heat exchange pipe (2), and is characterized in that: The interior of the heat exchanger body (1) is connected to a liquid inlet pipe (9), the interior of the heat exchanger body (1) is connected to a liquid discharge pipe (10), the outer wall of the heat exchanger body (1) is fixedly connected to the outer wall of the shell (3), the interior of the shell (3) is rotatably connected to a pin shaft, an adjusting device (4) is provided inside the shell (3), and a mounting device (5) is provided inside the liquid inlet pipe (9).

2. The double-effect temperature-controlled heat exchanger for ethylene glycol liquid-phase hydrogenation device according to claim 1, characterized in that: The adjusting device (4) comprises a handle (401) and a worm (402); the handle (401) is fixedly connected to the outer wall of the worm (402); the worm (402) is rotatably connected to the housing (3) via a bearing; the worm (402) is meshed with a worm wheel (403); the worm wheel (403) is fixedly connected to a cam (404) via a pin; and the outer wall of the cam (404) is in contact with the outer wall of the horizontal plate (405).

3. A double-effect temperature-controlled heat exchanger for an ethylene glycol liquid-phase hydrogenation device according to claim 2, characterized in that: The outer wall of the transverse plate (405) is fixedly connected to a vertical plate (6), the vertical plate (6) is clearance-matched with the heat exchanger body (1), and a through hole (8) is provided inside the vertical plate (6).

4. A double-effect temperature-controlled heat exchanger for an ethylene glycol liquid phase hydrogenation device according to claim 3, characterized in that: The heat exchanger body (1) is fixedly connected to the horizontal plate (405) via a spring (7), and the interior of the vertical plate (6) is in contact with the drain pipe (10).

5. The double-effect temperature-controlled heat exchanger for ethylene glycol liquid-phase hydrogenation device according to claim 1, characterized in that: The mounting device (5) comprises a bolt (501) and an annular plate (502), wherein the bolt (501) is threadedly connected to the annular plate (502) and the liquid inlet pipe (9) respectively, and a connecting block (503) is fixedly connected to the outer wall of the annular plate (502), and the connecting block (503) is fixedly connected to the outer wall of the filter screen (504).

6. A double-effect temperature-controlled heat exchanger for an ethylene glycol liquid phase hydrogenation device according to claim 5, characterized in that: The filter screen (504) fits in contact with the interior of the liquid inlet pipe (9), and the annular plate (502) fits in contact with the liquid inlet pipe (9).

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