Silicon carbide falling film absorber

Abstract

The utility model relates to a silicon carbide falling film absorber in the field of falling film absorbers, which comprises a tank body, an upper partition plate connected to the inner wall of the upper end part of the tank body, and a lower partition plate connected to the inner wall of the lower end part of the tank body, wherein a plurality of silicon carbide heat exchange pipes are circumferentially arranged between the upper partition plate and the lower partition plate at equal intervals, the upper end part of the tank body is detachably connected with a cylinder body, the lower end part of the tank body is detachably connected with a gas-liquid separator, the cylinder body is detachably connected with a cylinder cover, the top of the cylinder cover is fixedly communicated with an air inlet pipe, and the side wall of the cylinder cover is fixedly communicated with a liquid inlet pipe; the upper end part of the silicon carbide heat exchange tube is communicated with the cylinder body, and the lower end part is communicated with the gas-liquid separator; by the adoption of the structure, particulate matter impurities in gas are intercepted through the filter plates, and the probability that the silicon carbide heat exchange pipes are blocked is reduced; the impeller is driven by flowing of liquid in the liquid inlet pipe, the cleaning rod is driven to automatically reciprocate up and down, frequent manual cleaning is not needed, continuous and effective filtration of the filter plate is guaranteed, and equipment operation stability is maintained.

Description

TECHNICAL FIELD

[0001] The utility model relates to a silicon carbide falling film absorber, especially a silicon carbide falling film absorber applied to the field of falling film absorber. BACKGROUND

[0002] The falling film absorber is a kind of absorption reactor that liquid forms film and contacts with gas in countercurrent or parallel flow under the action of gravity.

[0003] Chinese utility model patent CN202222999250.3, the specification discloses a novel silicon carbide falling film absorber, relates to the technical field of falling film absorber, and includes silicon carbide heat exchange pipe, pipe plate, overflow block, second through slot, recess, overflow groove.In the utility model, absorption liquid enters equipment through spray pipe, absorption liquid is sprayed to the top of overflow block, absorption liquid first enters the recess inside the top of overflow block, absorption liquid fills the recess, and the liquid level slowly moves up, when the absorption liquid level is flush with the overflow groove, absorption liquid overflows into the second through slot through the overflow groove, and absorption liquid is evenly distributed into film shape and flows downward along the inner wall of silicon carbide heat exchange pipe;The overflow block is integrally machined, high in machining precision, ensures that each fluid passage is on the same plane, and absorption liquid does not appear to flow in equipment;The heat exchange unit of the equipment is silicon carbide pipe, which has smooth pipe wall, small medium flow resistance, easy film formation, high heat transfer efficiency, good corrosion resistance and other characteristics.

[0004] The above-mentioned patent still has the following defects: due to the lack of gas filtering structure, if the gas contains particulate impurities, the impurities may gradually accumulate in the pipe after entering the silicon carbide heat exchange pipe, which may cause the heat exchange pipe to be blocked, hinder the normal flow of gas and liquid, reduce the absorption efficiency, and even cause the equipment to be unable to operate normally, frequent shutdown and cleaning are required, and the equipment maintenance cost and downtime are increased.

[0005] In addition, the impurities attached to the inner wall of the silicon carbide heat exchange pipe may affect the formation of uniform film of absorption liquid on the pipe wall, reduce the gas-liquid contact area, and thus reduce the absorption reaction effect. Utility model content

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the utility model is that due to the lack of gas filtering structure, the gas containing particulate impurities may easily accumulate and cause the pipe to be blocked after entering the silicon carbide heat exchange pipe, which may hinder the flow of gas and liquid and reduce the absorption efficiency.

[0007] To solve the above problems, the utility model provides a kind of silicon carbide falling film absorber, including jar body, still include: the upper end portion inner wall of connecting in jar body on upper baffle, lower end portion inner wall on lower baffle;Wherein, multiple silicon carbide heat exchange pipes are arranged equidistantly between upper baffle and lower baffle, the upper end portion of jar body is detachably connected with cylinder body, and the lower end portion is detachably connected with gas-liquid separator, cylinder cover is detachably connected on cylinder body, the top of cylinder cover is fixedly connected with inlet pipe, and the lateral wall is fixedly connected with liquid inlet pipe, the upper end portion of silicon carbide heat exchange pipe is communicated with cylinder body, and the lower end portion is communicated with gas-liquid separator;Filter plate is connected in cylinder body and is located above liquid inlet pipe;Sliding block is slidingly connected in cylinder body, air hole is formed in sliding block, and cleaning rod corresponding with filter hole of filter plate is fixedly connected on sliding block;Driving mechanism is arranged in cylinder body and is used to drive sliding block to drive cleaning rod to reciprocate up and down in cylinder body, so that it is cleaned to particulate impurities blocked in filter hole of filter plate.

[0008] In the above leakage-proof structure for circulating pump, the particulate impurities in the gas are intercepted by the filter plate to prevent them from entering the silicon carbide heat exchange pipes and causing blockage; the liquid flowing in the liquid inlet pipe drives the impeller to automatically reciprocate up and down, so that frequent manual cleaning is not needed, the filter plate can continuously and effectively filter, and the stability of the equipment operation is maintained.

[0009] As a further improvement of the present application, the driving mechanism includes a rotating shaft and a cam, the rotating shaft is rotatably connected to the inner wall of the cylinder body, the cam is fixedly installed on the rotating shaft, a connecting ring is fixedly connected to the inner wall of the cylinder body, a guide rod is fixedly connected to the lower end surface of the sliding block, the guide rod is slidingly connected to the connecting ring, a limiting block is fixedly connected to the end of the guide rod away from the sliding block, a spring is sleeved on the guide rod, and the spring is located between the upper end surface of the limiting block and the lower end surface of the connecting ring.

[0010] As a further improvement of the present application, a rotating shaft is further included, the rotating shaft is rotatably connected to the liquid inlet pipe, an impeller is fixedly installed on the end of the rotating shaft penetrating into the liquid inlet pipe, a bevel gear one is fixedly installed on the end of the rotating shaft penetrating through the cylinder body, and a bevel gear two is fixedly installed on the end of the rotating shaft outside the liquid inlet pipe and engaged with the bevel gear one.

[0011] As a further improvement of the present application, the outer wall of the cylinder cover is threadedly connected to the inner wall of the cylinder body, a sealing gasket is arranged on the cylinder body, and the sealing gasket is in contact with the lower surface of the cylinder cover.

[0012] As a further improvement of the present application, a locking ring is fixedly connected to the inner wall of the cylinder body, the filter plate is located on the locking ring, and the lower end of the cylinder cover is in contact with the surface of the filter plate.

[0013] As a further improvement of the present application, a spiral blade is further included, the spiral blade is arranged in the silicon carbide heat exchange pipe and integrally formed with the inner wall of the silicon carbide heat exchange pipe.

[0014] As a further improvement of the present application, the tank is fixedly connected with a liquid inlet pipe one and a liquid inlet pipe two, the liquid inlet pipe one is located at the upper end of the tank, and the liquid inlet pipe two is located at the lower end of the tank.

[0015] As a further improvement of the present application, a groove is formed on the surface of the upper partition plate, and the liquid inlet end of the silicon carbide heat exchange pipe is parallel to the surface of the upper partition plate.

[0016] As a further improvement of the present application, the cylinder and the gas-liquid separator are detachably connected with the tank by fixing bolts.

[0017] As a further improvement of the present application, the gas-liquid separator is fixedly connected with a liquid outlet pipe and a gas outlet pipe.

[0018] As a further improvement of the present application, the gas-liquid separator is fixedly connected with a liquid outlet pipe and a gas outlet pipe.

[0019] The driving mechanism drives the impeller by the liquid flow in the liquid inlet pipe, and drives the cleaning rod to automatically reciprocate up and down, without the need for frequent manual cleaning, so as to ensure the continuous and effective filtering effect of the filter plate and maintain the stability of the equipment operation.

[0020] The spiral blades in the silicon carbide heat exchange pipe make the liquid descend in a spiral shape, prolong the residence time of the liquid in the heat exchange pipe, increase the contact area and time of the liquid and the gas, improve the uniformity of the gas-liquid mixture, promote the absorption reaction to be more sufficient, and greatly improve the absorption efficiency.

[0021] The groove on the surface of the upper partition plate and the design that the liquid inlet end of the silicon carbide heat exchange pipe is parallel to the surface of the upper partition plate optimize the liquid inflow mode, further improve the falling film effect, and help improve the absorption efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a sectional view of the tank, the cylinder and the gas-liquid separator of the first embodiment of the present application.

[0023] Figure 2 It is a structural schematic diagram of the first embodiment of the present application.

[0024] Figure 3 It is a structural development schematic diagram of the cylinder, the filter plate and the cylinder cover of an embodiment of the present application.

[0025] Figure 4 It is a sectional view of the cylinder, the filter plate and the cylinder cover of the first embodiment of the present application.

[0026] Figure 5 It is a partial structural schematic diagram of the first embodiment of the present application. Figure 1

[0027] Figure 6 ​Part structure schematic diagram of the first embodiment of the present application Figure 2 .

[0028] Explanation of reference numerals in the drawing

[0029] 1, tank body; 101, infusion tube one; 102, infusion tube two; 103, upper partition; 104, lower partition; 105, silicon carbide heat exchange pipe; 106, spiral blade; 2, cylinder body; 201, cylinder cover; 202, air inlet pipe; 203, liquid inlet pipe; 204, sealing gasket; 3, gas-liquid separator; 301, liquid outlet pipe; 302, gas outlet pipe; 4, locking ring; 401, filter plate; 5, connecting ring; 501, sliding block; 502, cleaning rod; 503, guide rod; 504, spring; 505, rotating shaft; 506, cam; 507, bevel gear one; 508, rotating shaft; 509, impeller; 510, bevel gear two. DETAILED DESCRIPTION

[0030] The first embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0031] First embodiment

[0032] Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, a silicon carbide falling film absorber includes a tank body 1, further comprising: an upper partition 103 connected to the inner wall of the upper end of the tank body 1, and a lower partition 104 connected to the inner wall of the lower end; wherein a plurality of silicon carbide heat exchange pipes 105 are circumferentially equidistantly arranged between the upper partition 103 and the lower partition 104, the upper end of the tank body 1 is detachably connected to a cylinder body 2, and the lower end is detachably connected to a gas-liquid separator 3, the cylinder body 2 is detachably connected to a cylinder cover 201 on top, the top of the cylinder cover 201 is fixedly connected to an air inlet pipe 202, and the sidewall is fixedly connected to a liquid inlet pipe 203, the upper end of the silicon carbide heat exchange pipe 105 is in communication with the cylinder body 2, and the lower end is in communication with the gas-liquid separator 3; a filter plate 401 is connected in the cylinder body 2 and located above the liquid inlet pipe 203; a sliding block 501 is slidingly connected in the cylinder body 2, a vent hole is formed in the sliding block 501, and a cleaning rod 502 corresponding to the filter hole of the filter plate 401 is fixedly connected to the sliding block 501; a driving mechanism is arranged in the cylinder body 2 and used to drive the sliding block 501 to drive the cleaning rod 502 to reciprocate up and down in the cylinder body 2, so as to clean the particulate impurities blocked in the filter hole of the filter plate 401.

[0033] The driving mechanism comprises a rotating shaft 505, a cam 506, the rotating shaft 505 is rotationally connected to the inner wall of the barrel 2, the cam 506 is fixedly installed on the rotating shaft 505, the inner wall of the barrel 2 is fixedly connected with a connecting ring 5, the lower end surface of the sliding block 501 is fixedly connected with a guide rod 503, the guide rod 503 is slidingly connected to the connecting ring 5, the end of the guide rod 503 away from the sliding block 501 is fixedly connected with a limiting block, a spring 504 is sleeved on the guide rod 503, and the spring 504 is located between the upper end surface of the limiting block and the lower end surface of the connecting ring 5.

[0034] The driving mechanism comprises a rotating shaft 505, a cam 506, the rotating shaft 505 is rotationally connected to the inner wall of the barrel 2, the cam 506 is fixedly installed on the rotating shaft 505, the inner wall of the barrel 2 is fixedly connected with a connecting ring 5, the lower end surface of the sliding block 501 is fixedly connected with a guide rod 503, the guide rod 503 is slidingly connected to the connecting ring 5, the end of the guide rod 503 away from the sliding block 501 is fixedly connected with a limiting block, a spring 504 is sleeved on the guide rod 503, and the spring 504 is located between the upper end surface of the limiting block and the lower end surface of the connecting ring 5.

[0035] The driving mechanism comprises a rotating shaft 505, a cam 506, the rotating shaft 505 is rotationally connected to the inner wall of the barrel 2, the cam 506 is fixedly installed on the rotating shaft 505, the inner wall of the barrel 2 is fixedly connected with a connecting ring 5, the lower end surface of the sliding block 501 is fixedly connected with a guide rod 503, the guide rod 503 is slidingly connected to the connecting ring 5, the end of the guide rod 503 away from the sliding block 501 is fixedly connected with a limiting block, a spring 504 is sleeved on the guide rod 503, and the spring 504 is located between the upper end surface of the limiting block and the lower end surface of the connecting ring 5.

[0036] The driving mechanism comprises a rotating shaft 505, a cam 506, the rotating shaft 505 is rotationally connected to the inner wall of the barrel 2, the cam 506 is fixedly installed on the rotating shaft 505, the inner wall of the barrel 2 is fixedly connected with a connecting ring 5, the lower end surface of the sliding block 501 is fixedly connected with a guide rod 503, the guide rod 503 is slidingly connected to the connecting ring 5, the end of the guide rod 503 away from the sliding block 501 is fixedly connected with a limiting block, a spring 504 is sleeved on the guide rod 503, and the spring 504 is located between the upper end surface of the limiting block and the lower end surface of the connecting ring 5.

[0037] The driving mechanism comprises a rotating shaft 505, a cam 506, the rotating shaft 505 is rotationally connected to the inner wall of the barrel 2, the cam 506 is fixedly installed on the rotating shaft 505, the inner wall of the barrel 2 is fixedly connected with a connecting ring 5, the lower end surface of the sliding block 501 is fixedly connected with a guide rod 503, the guide rod 503 is slidingly connected to the connecting ring 5, the end of the guide rod 503 away from the sliding block 501 is fixedly connected with a limiting block, a spring 504 is sleeved on the guide rod 503, and the spring 504 is located between the upper end surface of the limiting block and the lower end surface of the connecting ring 5.

[0038] The driving mechanism comprises a rotating shaft 505, a cam 506, the rotating shaft 505 is rotationally connected to the inner wall of the barrel 2, the cam 506 is fixedly installed on the rotating shaft 505, the inner wall of the barrel 2 is fixedly connected with a connecting ring 5, the lower end surface of the sliding block 501 is fixedly connected with a guide rod 503, the guide rod 503 is slidingly connected to the connecting ring 5, the end of the guide rod 503 away from the sliding block 501 is fixedly connected with a limiting block, a spring 504 is sleeved on the guide rod 503, and the spring 504 is located between the upper end surface of the limiting block and the lower end surface of the connecting ring 5.

[0039] The driving mechanism comprises a rotating shaft 505, a cam 506, the rotating shaft 505 is rotationally connected to the inner wall of the barrel 2, the cam 506 is fixedly installed on the rotating shaft 505, the inner wall of the barrel 2 is fixedly connected with a connecting ring 5, the lower end surface of the sliding block 501 is fixedly connected with a guide rod 503, the guide rod 503 is slidingly connected to the connecting ring 5, the end of the guide rod 503 away from the sliding block 501 is fixedly connected with a limiting block, a spring 504 is sleeved on the guide rod 503, and the spring 504 is located between the upper end surface of the limiting block and the lower end surface of the connecting ring 5.

[0040] At the same time, the liquid is absorbed into the cylinder 2 through the liquid inlet pipe 203, and in the process of flowing in, the liquid impacts the impeller 509 in the liquid inlet pipe 203, so that the impeller 509 rotates, the rotation of the impeller 509 drives the rotation shaft 508 to rotate, the rotation shaft 508 drives the rotating shaft 505 to rotate through the meshing transmission of the bevel gear two 510 and the bevel gear one 507, the cam 506 on the rotating shaft 505 rotates with the rotating shaft 505, the rotation of the cam 506 pushes the sliding block 501 to move upward, the sliding block 501 drives the guide rod 503 to move upward, so that the connecting ring 5 and the limiting block are extruded to each other, and the spring 504 is extruded, when the protruding part of the cam 506 is separated from the sliding block 501, the sliding block 501 drives the guide rod 503 to move downward under the elastic restoring force of the spring 504, and returns to the initial position, so as to circulate;

[0041] In the process of the sliding block 501 reciprocating up and down, the cleaning rod 502 moves up and down with the sliding block 501, when the cleaning rod 502 moves upward, it penetrates into the filter hole of the filter plate 401, and pushes out the particulate impurities blocked in the filter hole, so as to clean the filter hole of the filter plate 401 and ensure the filtering effect of the filter plate 401;

[0042] In summary, the liquid flowing in the liquid inlet pipe 203 drives the impeller 509, and then drives the driving mechanism to make the cleaning rod 502 reciprocate up and down automatically, so as to clean the particulate impurities in the filter hole of the filter plate 401, without the need for frequent manual cleaning, which improves the stability of the equipment operation, ensures the continuous and effective filtering effect of the filter plate 401, and prevents impurities from entering the silicon carbide heat exchange pipe 105 to affect the absorption effect;

[0043] The spiral blade 106 arranged in the silicon carbide heat exchange pipe 105 makes the liquid descend in a spiral shape, prolongs the residence time of the liquid in the heat exchange pipe, increases the contact area and contact time of the liquid and the gas, improves the uniformity of the gas-liquid mixing, promotes the absorption reaction to be carried out more fully, and improves the absorption efficiency;

[0044] The recess on the surface of the upper partition plate 103 and the design that the liquid inlet end of the silicon carbide heat exchange pipe 105 is parallel to the surface of the upper partition plate 103 are beneficial to the more uniform flow of the liquid, and further optimize the falling film effect.

[0045] Figure 1 、 Figure 2 As shown, the tank body 1 is fixedly connected with the liquid inlet pipe one 101 and the liquid inlet pipe two 102, the liquid inlet pipe one 101 is located at the upper end of the tank body 1, and the liquid inlet pipe two 102 is located at the lower end of the tank body 1.

[0046] In the absorption process, the gas and the liquid have an absorption reaction in the silicon carbide heat exchange pipe 105, and heat is generated in this process;

[0047] The external cooling medium such as water or other suitable cooling liquid enters the tank body 1 from the liquid inlet pipe 102, and flows in the space between the tank body 1 and the silicon carbide heat exchange pipe 105. The heat generated by the absorption reaction is transferred to the pipe wall of the silicon carbide heat exchange pipe 105. The cooling medium absorbs the heat on the pipe wall through heat exchange when flowing around the pipe wall, thereby reducing the temperature of the absorption reaction in the silicon carbide heat exchange pipe 105.

[0048] The cooling medium after absorbing heat is raised in temperature, and continues to flow in the tank body 1 to the upper end, and flows out of the tank body 1 from the liquid outlet pipe 101, and returns to the external cooling medium circulation system. In the circulation system, the cooling medium is cooled by a cooling device such as a cooling tower, a cooler, etc., and then enters the tank body 1 through the liquid inlet pipe 102 again, and circulates repeatedly.

[0049] In summary, by continuously circulating the cooling medium in the tank body 1, the heat generated in the absorption process can be timely taken away, so that the absorption reaction is always carried out in a suitable temperature range, which helps to improve the rate and efficiency of the absorption reaction, avoids the performance degradation of the absorbent due to too high temperature, and also protects the silicon carbide heat exchange pipe 105 from being damaged due to long-term high temperature environment, thereby prolonging the service life of the silicon carbide heat exchange pipe 105.

[0050] Figure 1 、 Figure 3 、 Figure 4 As shown, the outer wall of the cylinder cover 201 is threadedly connected with the inner wall of the cylinder body 2, and the cylinder body 2 is provided with a sealing gasket 204 which is in contact with the lower surface of the cylinder cover 201.

[0051] When installing the silicon carbide falling film absorber, the cylinder cover 201 is connected with the cylinder body 2. The outer wall of the cylinder cover 201 is provided with external threads, and the inner wall of the cylinder body 2 is correspondingly provided with internal threads. By rotating the cylinder cover 201, the two are tightly screwed together. During the screwing process, the sealing gasket 204 pre-provided on the cylinder body 2 gradually contacts the lower surface of the cylinder cover 201. With the continuous tightening of the cylinder cover 201, the sealing gasket 204 is elastically deformed by being pressed, and fills the small gap between the cylinder cover 201 and the cylinder body 2, effectively preventing gas from leaking from the connection between the cylinder cover 201 and the cylinder body 2, ensuring that all the gas enters the cylinder body 2 to participate in the absorption reaction, improving the efficiency and safety of the absorption process, and also avoiding harm to the surrounding environment and operating personnel caused by leakage of harmful gas.

[0052] When it is necessary to clean the particulate impurities intercepted on the surface of the filter plate 401, the cylinder cover 201 can be conveniently separated from the cylinder body 2 by being rotated in the reverse direction, so that the operating personnel can regularly clean the particulate impurities intercepted on the surface of the filter plate 401.

[0053] The inner wall of the barrel 2 is fixedly connected with a locking ring 4, the filter plate 401 is located on the locking ring 4, and the lower end of the barrel cover 201 abuts against the surface of the filter plate 401.

[0054] In the process of assembling the barrel 2 part of the silicon carbide falling film absorber, the filter plate 401 is first placed on the locking ring 4 fixedly connected to the inner wall of the barrel 2 to preliminarily position the filter plate 401, then the barrel cover 201 is connected with the barrel 2, and as the barrel cover 201 is gradually tightened, the lower end of the barrel cover 201 gradually abuts against the surface of the filter plate 401, thereby ensuring the stable installation of the filter plate 401 in the barrel 2; during the operation of the equipment, the filter plate 401 can stably filter the gas entering the barrel 2, and meanwhile, under the action force of the gas pressure and the cleaning rod 502 for cleaning impurities, the filter plate 401 will not be displaced or shaken, thereby ensuring the stability of the filtering effect, effectively intercepting the particulate impurities in the gas, preventing the impurities from entering the silicon carbide heat exchange pipe 105, avoiding the blockage of the silicon carbide heat exchange pipe 105, and further ensuring the smooth progress of the absorption process, improving the absorption efficiency, and prolonging the service life of the equipment.

[0055] Figure 1 、 Figure 2 It is shown that the barrel 2 and the gas-liquid separator 3 are detachably connected with the tank body 1 through the fixing bolts.

[0056] When the equipment needs to be maintained or overhauled, only the nuts of the fixing bolts are loosened by using a tool, and the bolts are taken out of the bolt holes, so that the barrel 2 and the gas-liquid separator 3 can be easily separated from the tank body 1, thereby greatly facilitating the maintenance work of the equipment.

[0057] In combination with the current actual demand, the protection scope of the above-mentioned embodiments of the present application is not limited thereto, and various changes made within the knowledge range of those skilled in the art without departing from the concept of the present application still fall within the protection scope of the present application.

Claims

1. A falling film absorber of silicon carbide comprising a tank body (1), characterised in that, Also include: The upper baffle (103) is arranged on the inner wall of the upper end of the tank body (1), and the lower baffle (104) is arranged on the inner wall of the lower end; Wherein, the upper baffle (103) and the lower baffle (104) are circumferentially equidistantly provided with a plurality of silicon carbide heat exchange pipes (105), the upper end of the tank body (1) is detachably connected with a cylinder (2), the lower end is detachably connected with a gas-liquid separator (3), the cylinder (2) is detachably connected with a cylinder cover (201), the top of the cylinder cover (201) is fixedly connected with an air inlet pipe (202), and the sidewall is fixedly connected with a liquid inlet pipe (203), the upper end of the silicon carbide heat exchange pipe (105) is connected with the cylinder (2), and the lower end is connected with the gas-liquid separator (3); The filter plate (401) is connected in the cylinder (2) and located above the liquid inlet pipe (203); The sliding block (501) is slidingly connected in the cylinder (2), the sliding block (501) is provided with a ventilation hole, and the sliding block (501) is fixedly connected with a cleaning rod (502) corresponding to the filter hole of the filter plate (401); The driving mechanism is arranged in the cylinder (2) and is used for driving the sliding block (501) to drive the cleaning rod (502) to reciprocate up and down in the cylinder (2), so that the particulate impurities blocked in the filter hole of the filter plate (401) are cleaned.

2. A falling film absorber of silicon carbide according to claim 1, characterized in that: The driving mechanism comprises a rotating shaft (505) and a cam (506), the rotating shaft (505) is rotatably connected to the inner wall of the cylinder (2), the cam (506) is fixedly installed on the rotating shaft (505), the inner wall of the cylinder (2) is fixedly connected with a connecting ring (5), the lower end surface of the sliding block (501) is fixedly connected with a guide rod (503), the guide rod (503) is slidingly connected to the connecting ring (5), the end of the guide rod (503) away from the sliding block (501) is fixedly connected with a limiting block, the guide rod (503) is sleeved with a spring (504), and the spring (504) is located between the upper end surface of the limiting block and the lower end surface of the connecting ring (5).

3. A SiC falling film absorber according to claim 2, characterized in that: It also includes a rotating shaft (508), the rotating shaft (508) is rotatably connected to the liquid inlet pipe (203), one end of the rotating shaft (508) penetrating into the liquid inlet pipe (203) is fixedly installed with an impeller (509), one end of the rotating shaft (505) penetrating the cylinder (2) is fixedly installed with a bevel gear one (507), and the other end of the rotating shaft (508) located outside the liquid inlet pipe (203) is fixedly installed with a bevel gear two (510) meshing with the bevel gear one (507).

4. A falling film absorber of silicon carbide according to claim 1, characterized in that: The outer wall of the cylinder cover (201) is threadedly connected with the inner wall of the cylinder (2), the cylinder (2) is provided with a sealing gasket (204), and the lower surface of the sealing gasket (204) is matched with the cylinder cover (201).

5. A falling film absorber of silicon carbide according to claim 4, characterized in that: The inner wall of the cylinder (2) is fixedly connected with a locking ring (4), the filter plate (401) is located on the locking ring (4), and the lower end of the cylinder cover (201) is abutted with the surface of the filter plate (401).

6. A falling film absorber of silicon carbide according to claim 1, characterized in that: Also include spiral blade (106), the spiral blade (106) is arranged in silicon carbide heat exchange pipe (105), and is integrally formed with silicon carbide heat exchange pipe (105) inner wall.

7. A falling film absorber of silicon carbide according to claim 1, characterized in that: The tank body (1) is fixedly connected with infusion pipe one (101) and infusion pipe two (102), the infusion pipe one (101) is located at the upper end of the tank body (1), and the infusion pipe two (102) is located at the lower end of the tank body (1).

8. A falling film absorber of silicon carbide according to claim 6, characterized in that: The surface of the upper partition plate (103) is provided with a groove, and the liquid inlet end of the silicon carbide heat exchange pipe (105) is parallel to the surface of the upper partition plate (103).

9. A falling film absorber of silicon carbide according to claim 1, characterized in that: The cylinder body (2) and the gas-liquid separator (3) are detachably connected with the tank body (1) through fixing bolts.

10. A falling film absorber of silicon carbide according to claim 1, characterized in that: The gas-liquid separator (3) is fixedly connected with a liquid outlet pipe (301) and a gas outlet pipe (302).

Images