Buffer device for methanol synthesis gas compressor

Abstract

The invention discloses a buffering device for a methanol synthesis gas compressor, and relates to the technical field of compressor buffering. Comprising a tank body installation part, and a pressure supply compensation part is installed on the tank body installation part and used for compensating air pressure. A shunting control piece is mounted on the tank body mounting piece; the shunting control piece is used for controlling shunting of synthetic air pressure; a bypass control piece is fixedly installed on the flow dividing control piece. A buffer control part is mounted in the bypass control part; the buffer control piece is used for buffering air pressure; the bypass control element is used for non-stop maintenance; a pollution discharge control part is mounted at the bottom of the pressure supply compensation part; real-time pressure supply can be realized by utilizing the floatable propelling piston, so that variable-volume compensation is realized, and meanwhile, the effective gas supply time of the tank body is prolonged; the buffering device aims at solving the problems that an existing buffering device for the methanol synthesis gas compressor is not convenient to achieve variable-volume compensation pressure supply, air pressure fluctuation is large, the pause time of the compressor is short, and the heat dissipation effect is poor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressor buffer, in particular to a buffer device for methanol synthesis gas compressor. BACKGROUND

[0002] In the methanol synthesis process, the compressor buffer tank is the key equipment to ensure the stable operation of the synthesis gas compression system. The compressor buffer tank is used to stabilize the gas flow and optimize the equipment operation. At the same time, the buffer tank also plays a role in gas storage, which can facilitate the compressor shutdown for cooling and energy saving. The current buffer device for methanol synthesis gas compressor mainly adopts a general buffer tank. When the storage pressure meets the standard, the compressor stops for cooling. At this time, the buffer tank is discharged with the exhaust gas. The volume of the buffer tank does not change, and the internal pressure will decrease rapidly. The compressor needs to be started quickly to provide pressure. It is not convenient to realize variable volume compensation and pressure. The gas pressure fluctuation is large, the compressor pause time is short, the heat dissipation effect is poor, and the gas pressure is not stable, which further affects the gas pressure buffering effect. It is also not convenient to repair the corrosion of the inner wall of the tank without stopping the machine. At the same time, the sewage discharge of the traditional buffer tank depends on manual control of the valve discharge, which is easy to cause excessive exhaust and pressure relief hazards.

[0003] Therefore, we propose a buffer device for methanol synthesis gas compressor. SUMMARY

[0004] The purpose of the present application is to provide a buffer device for methanol synthesis gas compressor to solve the problems of the current buffer device for methanol synthesis gas compressor, which is not convenient to realize variable volume compensation and pressure, has large gas pressure fluctuation, short compressor pause time, poor heat dissipation effect, and the like.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a buffer device for methanol synthesis gas compressor, comprising a tank body mounting piece, a pressure compensation piece is installed on the tank body mounting piece, and the pressure compensation piece is used to compensate the gas pressure; a flow control piece is installed on the tank body mounting piece; the flow control piece is used to control the gas pressure flow splitting; a bypass control piece is fixedly installed on the flow control piece; a buffer control piece is installed in the bypass control piece; the buffer control piece is used to buffer the gas pressure; the bypass control piece is used for maintenance without stopping the machine; a sewage control piece is installed at the bottom of the pressure compensation piece; the sewage control piece is used to prevent gas pressure leakage and sewage; an exhaust part is fixedly installed at the bottom of the tank body mounting piece; the tank body mounting piece comprises a tank body and a maintenance blocking column, a circle of maintenance blocking columns is slidingly inserted into the tank body, and a flange is arranged on each of the circle of maintenance blocking columns; the flanges on the circle of maintenance blocking columns are connected to the tank body by bolts; the end of the circle of maintenance blocking columns is flush with the inside of the tank body.

[0006] Preferably, the tank body mounting piece further comprises a closure cover, and the closure cover is fixedly installed on the top of the tank body by bolts.

[0007] Preferably, the pressure compensation member comprises: a disassembly cover, a propelling hydraulic cylinder, a propelling piston and a one-way air pipe, two disassembly covers are fixedly installed on the closed cover through bolts; two propelling hydraulic cylinders are fixedly installed on the two disassembly covers respectively, and the output shafts of the propelling hydraulic cylinders pass through the disassembly covers; the propelling pistons are fixedly installed on the output shafts of the two propelling hydraulic cylinders through bolts, and the propelling pistons are slidingly sleeved in the tank body; the one-way air pipe is fixedly installed on the propelling piston, and a one-way valve is arranged in the one-way air pipe; the one-way valve in the one-way air pipe is used to limit the airflow from top to bottom.

[0008] Preferably, the shunt control member comprises: a separated air inlet pipe, a main pipe and a branch pipe, the separated air inlet pipe is fixedly installed on the tank body; the separated air inlet pipe passes through the tank body; the main pipe is fixedly installed at the bottom of the separated air inlet pipe, and an electromagnetic valve is arranged on the main pipe; the branch pipe is fixedly installed at the end of the separated air inlet pipe, and an electromagnetic valve is arranged on the branch pipe; a flange for connecting the air outlet pipe of the compressor is arranged on the separated air inlet pipe; the main pipe is located above the propelling piston; a threaded hole for connecting the pressure gauge is arranged on the separated air inlet pipe.

[0009] Preferably, the bypass control member comprises: a bypass pipe and air holes, the bypass pipe is fixedly installed at the end of the branch pipe; the branch pipe and the bypass pipe are communicated; a ring of air holes is arranged on the bypass pipe, and a spacing is arranged between the ring of air holes and the bottom of the closed cover; the bypass pipe is slidingly inserted into the middle of the propelling piston.

[0010] Preferably, the buffer control member comprises: a buffer sleeve, an iron ring and an inclined face stopper, the buffer sleeve is slidingly sleeved in the bypass pipe; the iron ring is fixedly installed at the bottom of the buffer sleeve and sleeved in the bypass pipe; a row of inclined face stoppers is fixedly installed on the inner side of the buffer sleeve, and the inclined face stoppers are inclined annular structures; the inclined face stoppers are used to buffer the air pressure.

[0011] Preferably, the buffer control member further comprises: a tension spring and an electromagnet, the tension spring is sleeved in the bypass pipe; the end of the tension spring is fixedly installed on the buffer sleeve; the other end of the tension spring is connected to the inner side of the bypass pipe; the electromagnet is fixedly installed in the bypass pipe, and the electromagnet is used to magnetically attract the iron ring; the electromagnet and the iron ring are respectively located on the two sides of the air hole; the iron ring is used to shield the air hole.

[0012] Preferably, the blowdown control member comprises: a detection sleeve, a spring and a micro switch, the detection sleeve is slidingly inserted into the bottom of the propelling piston; the spring is fixedly installed in the detection sleeve and located in the propelling piston; the other end of the spring is connected to the inside of the propelling piston; a gap is arranged between the outer side of the detection sleeve and the propelling piston; the micro switch is fixedly installed at the bottom of the detection sleeve.

[0013] Preferably, the discharge part comprises: a bottom plate and a sewage pipe, the bottom plate is fixedly installed at the bottom of the tank body through bolts; the sewage pipe is fixedly installed at the bottom of the bottom plate; the sewage pipe is provided with an electromagnetic valve; the electromagnetic valve on the sewage pipe is electrically connected with the micro switch; the electromagnetic valve on the sewage pipe, the electromagnet, the electromagnetic valve on the main pipe and the electromagnetic valve on the branch pipe are respectively connected with control switches.

[0014] Preferably, the discharge part further comprises: an exhaust pipe, the bottom of the bottom plate is provided with a supporting leg; the exhaust pipe is fixedly installed at the bottom of the bottom plate, and the exhaust pipe is provided with an electromagnetic valve.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] The pressure compensation member can buffer the gas pressure, the floating advancing piston can compensate the gas pressure, the stable gas pressure supply is ensured, the advancing piston can give pressure in real time, the variable volume compensation is realized, the effective gas supply time of the tank body is prolonged, the problem that the compressor needs to be started immediately to compensate the gas pressure when the internal pressure of the traditional buffer tank is reduced too much is avoided, the shutdown cooling time of the compressor is prolonged, the service life of the compressor is prolonged, the normal gas supply is not affected, the compressor is started directly to compensate the gas pressure, the gas pressure balance is broken again, the gas pressure stability is further affected, the one-way air pipe is used to ensure that the compressor can be normally turned on only after the gas pressure balance is ensured, the structure is more reasonable, the constant volume method used by the traditional buffer tank is prevented, the buffer tank pressure is reduced to the lower limit, the gas end may experience a phased gas pressure shortage, and the tank temperature drops during shutdown to accelerate water vapor condensation and increase corrosion of the tank.

[0017] The buffer control member and the bypass control member are used to realize temporary bypass drainage work, facilitate non-stop maintenance work of the staff, maintain the gas pressure supply, play a role in gas pressure buffering, be more suitable for regular maintenance work, be more suitable for continuous production work, improve the safety of the tank body, and avoid safety hazards caused by rust due to regular maintenance.

[0018] The discharge part and the sewage control member are used to prevent a large amount of compressed gas from being discharged when sewage needs to be discharged, further affect the gas path pressure, realize automatic control of the sewage discharge time, avoid the problem that sewage discharge causes pressure relief, prevent the traditional manual slot sewage discharge method from needing slow discharge, but the small discharge flow channel is easy to cause impurities to be difficult to discharge, the advancing piston is used to play a role in scraping sewage and overall cleaning of impurities. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of a methanol synthesis gas compressor buffer device.

[0020] Figure 2 The internal structure sectional view of a buffer device for a methanol synthesis gas compressor according to the present application;

[0021] Figure 3 The partial sectional view of a buffer device for a methanol synthesis gas compressor according to the present application;

[0022] Figure 4 The structure schematic diagram of a tank mounting according to the present application;

[0023] Figure 5 The structure schematic diagram of a pressure supply compensating member according to the present application;

[0024] Figure 6 The structure schematic diagram of a flow distribution control member according to the present application;

[0025] Figure 7 The structure schematic diagram of a bypass control member according to the present application;

[0026] Figure 8 The structure schematic diagram of a bypass control member according to the present application; Figure 2 The structure enlarged view of a C area in the present application;

[0027] Figure 9 The structure enlarged view of a D area in the present application; Figure 2 The structure enlarged view of a D area in the present application;

[0028] Figure 10 The structure schematic diagram of a discharge part according to the present application.

[0029] In the figure: 1, tank mounting; 101, tank; 102, maintenance blocking column; 103, closing cover; 2, pressure supply compensating member; 201, dismounting cover; 202, pushing hydraulic cylinder; 203, pushing piston; 204, one-way air pipe; 3, flow distribution control member; 301, separated air inlet pipe; 302, main pipe; 303, branch pipe; 4, bypass control member; 401, bypass pipe; 4011, air hole; 5, buffer control member; 501, buffer sleeve; 5011, iron ring; 5012, inclined surface blocking ring; 502, tension spring; 503, electromagnet; 6, discharge control member; 601, detection sleeve; 602, spring; 603, microswitch; 7, discharge part; 701, bottom plate; 702, discharge pipe; 703, exhaust pipe. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] Embodiment one: please refer to Figures 1 to 10 as shown:

[0032] The application provides a technical scheme: a buffer device for a methanol synthesis gas compressor, which comprises a tank body mounting piece 1, a pressure supply compensation piece 2 is mounted on the tank body mounting piece 1, and the pressure supply compensation piece 2 is used for compensating gas pressure; a shunt control piece 3 is mounted on the tank body mounting piece 1; the shunt control piece 3 is used for controlling gas pressure shunt; a bypass control piece 4 is fixedly installed on the shunt control piece 3; a buffer control piece 5 is installed in the bypass control piece 4; the buffer control piece 5 is used for buffering gas pressure; the bypass control piece 4 is used for non-stop maintenance; a blowdown control piece 6 is installed at the bottom of the pressure supply compensation piece 2; the blowdown control piece 6 is used for preventing gas pressure leakage blowdown; a discharge part 7 is fixedly installed at the bottom of the tank body mounting piece 1; the tank body mounting piece 1 comprises a tank body 101 and a maintenance blocking column 102, a circle of the maintenance blocking column 102 is slidably inserted on the tank body 101, and flanges are respectively arranged on the circle of the maintenance blocking column 102; the flanges on the circle of the maintenance blocking column 102 are connected on the tank body 101 through bolts respectively; the end of the circle of the maintenance blocking column 102 and the inner side of the tank body 101 are flush.

[0033] The tank body mounting piece 1 further comprises: a closing cover 103, the closing cover 103 being bolted and mounted on the top of the tank body 101; the pressure compensation piece 2 comprises: a dismounting cover 201, a pushing hydraulic cylinder 202, a pushing piston 203 and a one-way air pipe 204, two dismounting covers 201 being bolted and mounted on the closing cover 103; the pushing hydraulic cylinder 202 being fixedly mounted on each of the two dismounting covers 201, and the output shaft of the pushing hydraulic cylinder 202 penetrating through the dismounting cover 201; the pushing piston 203 being bolted and mounted on the output shaft of the two pushing hydraulic cylinders 202, and the pushing piston 203 being slidingly sleeved inside the tank body 101; the one-way air pipe 204 being fixedly mounted on the pushing piston 203, and a one-way valve being arranged inside the one-way air pipe 204; the one-way valve inside the one-way air pipe 204 being used for limiting the airflow from being transmitted from top to bottom; the shunt control piece 3 comprises: a separated air inlet pipe 301, a main pipe 302 and a branch pipe 303, a threaded hole for connecting a pressure gauge being arranged on the separated air inlet pipe 301; the separated air inlet pipe 301 being fixedly mounted on the tank body 101; the separated air inlet pipe 301 penetrating through the tank body 101; the main pipe 302 being fixedly mounted on the bottom of the separated air inlet pipe 301, and an electromagnetic valve being arranged on the main pipe 302; the branch pipe 303 being fixedly mounted on the end of the separated air inlet pipe 301, and an electromagnetic valve being arranged on the branch pipe 303; a flange for butt-jointing with the air outlet pipe of a compressor being arranged on the separated air inlet pipe 301;The main pipe 302 is located above the push piston 203, and the pressure compensation member 2 can play a role in buffering the gas pressure. At the same time, the push piston 203 can be in a floating manner, and the one-way air pipe 204 can facilitate the discharge of the synthesis gas after the gas pressure is stored in the tank body 101, and can assist in compensating the gas pressure to ensure stable gas pressure supply. At the same time, the structure can realize variable volume compensation in real time by using the push piston 203 which can float, and can prolong the effective gas supply time of the tank body 101, avoid the problem that the traditional buffer tank needs to start the compressor to compensate the gas pressure immediately after the internal pressure decreases a lot, and can prolong the shutdown cooling time of the compressor and prolong the service life of the compressor. At the same time, it also does not affect normal gas supply. At the same time, the direct compensation of the gas pressure by the compressor will break the gas pressure balance again, further affecting the stability of the gas pressure. The one-way air pipe 204 can ensure that the compressor can be normally turned on only after the gas pressure balance, the structure is more reasonable, and the constant volume buffer tank pressure of the traditional buffer tank is reduced to the lower limit. The gas end may experience a stage of insufficient gas pressure, and the tank temperature decreases during shutdown to accelerate water vapor condensation and increase corrosion of the tank. When the internal pressure of the tank body 101 meets the requirements of the compressor shutdown, the compressor can be temporarily stopped, and the gas pressure is supplied by the internal pressure of the tank body 101. During the process, the push piston 203 is pushed down by the push hydraulic cylinder 202 to increase the gas pressure and avoid the pressure being too low due to gas discharge. During the process, because the push piston 203 is continuously pushed down, the gas pressure below the push piston 203 is greater than that above the push piston 203, and the one-way valve in the one-way air pipe 204 can be closed to ensure the gas pressure supply. When the push piston 203 moves down and approaches the gas hole 4011, the compressor can be started again to quickly supply the gas pressure. During the process, because the one-way valve in the one-way air pipe 204 is arranged, the one-way valve in the one-way air pipe 204 will be opened only when the gas pressure above the push piston 203 is greater than that below the push piston 203, to ensure the stability of the gas pressure at the initial stage of the compressor startup and improve the gas pressure buffering quality. When the gas pressure above the push piston 203 is greater than that below the push piston 203, the push piston 203 can be pushed up by the push hydraulic cylinder 202 to reset. During the process, the one-way valve in the one-way air pipe 204 can be kept open, and the push piston 203 can be pushed up without affecting the push piston 203, to ensure that the next gas pressure variable volume compensation work can be normally performed. The push piston 203 moves down to increase the utilization rate of the gas pressure, the gas supply time is longer, and the shutdown cooling energy saving of the compressor is stronger.

[0034] The bypass control piece 4 comprises a bypass pipe 401 and air holes 4011, the bypass pipe 401 is fixedly installed at the end of the branch pipe 303; the branch pipe 303 and the bypass pipe 401 are communicated; a circle of air holes 4011 are arranged on the bypass pipe 401, and a spacing is arranged between the circle of air holes 4011 and the bottom of the closure cover 103; the bypass pipe 401 is slidingly inserted into the middle part of the push piston 203; the buffer control piece 5 comprises a buffer sleeve 501, an iron ring 5011 and an inclined face stop ring 5012, the buffer sleeve 501 is slidingly sleeved inside the bypass pipe 401; the iron ring 5011 is fixedly installed at the bottom of the buffer sleeve 501 and sleeved inside the bypass pipe 401; a row of inclined face stop rings 5012 are fixedly installed on the inner side of the buffer sleeve 501, and the inclined face stop rings 5012 are inclined annular structures; the inclined face stop rings 5012 are used for buffering air pressure; the buffer control piece 5 further comprises a tension spring 502 and an electromagnet 503, the tension spring 502 is sleeved inside the bypass pipe 401; the end of the tension spring 502 is fixedly installed on the buffer sleeve 501; the other end of the tension spring 502 is connected to the inner side of the bypass pipe 401; the electromagnet 503 is fixedly installed inside the bypass pipe 401, and the electromagnet 503 is used for magnetically attracting the iron ring 5011; the electromagnet 503 and the iron ring 5011 are respectively located on the two sides of the air hole 4011; the iron ring 5011 is used for shielding the air hole 4011; the temporary bypass drainage work can be realized by adopting the buffer control piece 5 in cooperation with the bypass control piece 4, the non-stop maintenance work of the staff can be facilitated, the air pressure supply can be maintained, and the air pressure buffering effect can be achieved, the work is more suitable for regular maintenance, the stop maintenance after the corrosion problem in the tank body 101 is determined, the influence on the air path is reduced, the equipment production is ensured to be smooth, the continuous production work is more suitable, the safety of the tank body 101 is improved, the regular maintenance is avoided, the safety hidden danger caused by rust is avoided, the structure is more reasonable, when the maintenance work is needed, the electromagnetic valve on the branch pipe 303 can be opened first, at this time, the air pressure is divided into the bypass pipe 401, the pressure balance is ensured by the air hole 4011, then the electromagnetic valve on the main pipe 302 is closed, the iron ring 5011 is magnetically attracted by electrifying the electromagnet 503, the iron ring 5011 is lowered to close the air hole 4011, the inclined face stop ring 5012 can play a role in buffering the air pressure, and the buffer sleeve 501 temporarily ventilates.

[0035] The sewage control piece 6 includes a detection sleeve 601, a spring 602 and a micro switch 603, the bottom of the advancing piston 203 is slidingly inserted with the detection sleeve 601; the inside of the detection sleeve 601 is fixedly installed with the spring 602, and the spring 602 is located inside the advancing piston 203; the other end of the spring 602 is connected inside the advancing piston 203; a gap is arranged between the outside of the detection sleeve 601 and the advancing piston 203; the bottom of the detection sleeve 601 is fixedly installed with the micro switch 603; the discharge part 7 includes a bottom disc 701 and a sewage pipe 702, and the bottom of the tank body 101 is fixedly installed with the bottom disc 701 through bolts; the bottom of the bottom disc 701 is fixedly installed with the sewage pipe 702; the sewage pipe 702 is provided with a solenoid valve; the micro switch 603 is electrically connected with the solenoid valve on the sewage pipe 702; the solenoid valve on the sewage pipe 702, the electromagnet 503, the solenoid valve on the main pipe 302 and the solenoid valve on the branch pipe 303 are respectively externally connected with control switches; the discharge part 7 further includes an exhaust pipe 703, the bottom of the bottom disc 701 is provided with a supporting leg; the bottom of the bottom disc 701 is fixedly installed with the exhaust pipe 703, and the exhaust pipe 703 is provided with a solenoid valve; the exhaust pipe 703 is provided with a flange, and the flange on the exhaust pipe 703 is connected with the downstream synthetic tower pipeline inlet through bolts; the discharge part 7 cooperates with the sewage control piece 6, which can be used to prevent a large amount of compressed gas from being discharged when sewage needs to be discharged, further affecting the gas path pressure, can realize automatic control of the sewage time, avoid the problem that sewage causes pressure relief, prevent the traditional manual slot sewage method from needing slow discharge, but the discharge flow channel is too small and is easy to cause the problem that impurities are difficult to discharge, and the structure cooperates with the advancing piston 203 to play a role in scraping sewage and overall cleaning of impurities; when sewage needs to be discharged, the bottom edge of the advancing piston 203 is aligned and lowered above the air hole 4011 first, as described above, the bypass pipe 401 is used to temporarily buffer the air pressure first, at this time the air hole 4011 is blocked and will not exhaust, at this time the advancing piston 203 is pressed down by the advancing hydraulic cylinder 202, the end of the micro switch 603 is pressed against the bottom disc 701, and the spring 602 can be elastically compressed and will not be stuck, at this time the micro switch 603 can control the solenoid valve on the sewage pipe 702 to be fully open to discharge sewage, with the advancing piston 203 moving downward, the sewage can be promoted to be pushed out, the bypass pipe 401 can buffer the air pressure in the process, the sewage pipe 702 will not interfere with the air path pressure when discharging sewage, the overall air path pressure is more stable, and whether it is overhauled or sewage, it can be carried out regularly, daily use still maintains the work of buffering the air pressure through the tank body 101, the buffer control piece 5 is used to ensure that the compressor exhaust is buffered, air pressure is not interrupted or leaked, and the structure is more reasonable.

[0036] The working principle of the embodiment is as follows: first, the flange on the air inlet pipe 301 is connected to the air outlet pipe of the compressor by means of bolt butt joint; as the air pressure generated by the compressor rises in the tank body 101, the one-way valve in the one-way air pipe 204 can realize one-way conduction; the electromagnetic valve on the exhaust pipe 703 is opened to exhaust; as the internal pressure of the tank body 101 meets the requirements, the compressor can be stopped, and the compressor operation can be paused; the internal pressure of the tank body 101 supplies air pressure; during the process, the advancing hydraulic cylinder 202 pushes the advancing piston 203 to move downward to increase the air pressure, so as to avoid the air pressure being too low due to exhaust; during the process, because the advancing piston 203 continuously moves downward, the air pressure below the advancing piston 203 is greater than that above the advancing piston 203, the one-way valve in the one-way air pipe 204 can be closed to ensure air pressure supply; as the advancing piston 203 moves downward to approach the air hole 4011, the compressor can be started again to quickly supply air pressure; during the process, because the one-way valve in the one-way air pipe 204 is arranged, the one-way valve in the one-way air pipe 204 will only be opened when the air pressure above the advancing piston 203 is greater than that below the advancing piston 203, so as to ensure the stability of the air pressure at the initial stage of the compressor start and improve the air pressure buffering quality; as the air pressure above the advancing piston 203 is greater than that below the advancing piston 203, the advancing piston 203 can be pushed upward by the advancing hydraulic cylinder 202 to reset; during the process, the one-way valve in the one-way air pipe 204 can be kept open, so as not to affect the upward movement of the advancing piston 203, and the next air pressure variable volume compensation work can be ensured to be normally performed.When maintenance is needed, the electromagnetic valve on the branch pipe 303 can be opened first, at which time the gas pressure is shunted to the bypass pipe 401, and the air hole 4011 is used to ensure pressure balance, then the electromagnetic valve on the main pipe 302 can be closed, the electromagnet 503 is powered to the electromagnet ring 5011, the ring 5011 can be moved downward to close the air hole 4011, the inclined stop ring 5012 can play a role in buffering the gas pressure, the buffer sleeve 501 is temporarily ventilated, the hydraulic cylinder 202 is driven to move the push piston 203 to adjust the height, at which time the bolts on the closure cover 103 and between the closure cover 103 and the disassembly cover 201 can be rotated and disassembled, the closure cover 103 can be directly removed, the bolts on the maintenance blocking column 102 can be disassembled, the maintenance blocking column 102 is removed, and artificial can directly use endoscope and other equipment to observe the corrosion condition of the inner wall of the tank body 101, which is fast and efficient. When sewage needs to be discharged, the bottom edge of the push piston 203 is aligned and lowered above the air hole 4011 by control, as described above, the bypass pipe 401 is used to temporarily buffer the gas pressure, at which time the air hole 4011 is blocked and cannot be discharged, at which time the push piston 203 is pushed downward by the push hydraulic cylinder 202, the end of the micro switch 603 is pressed against the bottom plate 701, the spring 602 can be elastically compressed and will not be stuck, at which time the micro switch 603 can control the electromagnetic valve on the sewage discharge pipe 702 to be fully open to discharge sewage, as the push piston 203 moves downward, it can promote the sewage to be pushed out, the bypass pipe 401 can buffer the gas pressure in the process, the sewage discharge pipe 702 will not interfere with the gas pressure when discharging sewage, the overall gas pressure is more stable, and whether it is maintenance or sewage discharge, it can be done regularly, and daily use still maintains the work of buffering the gas pressure through the tank body 101, the buffer control piece 5 is used to ensure that the compressor outlet gas is buffered, which will not interrupt the gas pressure or cause gas pressure leakage, when sewage needs to be discharged, the bottom edge of the push piston 203 is aligned and lowered above the air hole 4011 by control, as described above, the bypass pipe 401 is used to temporarily buffer the gas pressure, at which time the air hole 4011 is blocked and cannot be discharged, at which time the push piston 203 is pushed downward by the push hydraulic cylinder 202, the end of the micro switch 603 is pressed against the bottom plate 701, the detection sleeve 601 moves upward in the push piston 203, the spring 602 can be elastically compressed and will not be stuck, at which time the micro switch 603 can control the electromagnetic valve on the sewage discharge pipe 702 to be fully open to discharge sewage.

[0037] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0038] While the embodiments of the application have been shown and described herein, it is to be understood that the scope of the application, jointly pointed out in the appended claims, is not to be limited to the above-described embodiments but can be otherwise variously changed, modified, replaced, and altered within the principles and spirit of the present application.

Claims

1. A buffer device for a methanol synthesis gas compressor, comprising a tank mounting member (1), a pressure compensating member (2) being mounted on the tank mounting member (1), and characterized in that: The pressure compensation component (2) is used to compensate for the air pressure; a flow diversion control component (3) is installed on the tank body mounting component (1); the flow diversion control component (3) is used to control the pressure diversion of the synthetic gas; A bypass control component (4) is fixedly mounted on the diversion control component (3); a buffer control component (5) is mounted inside the bypass control component (4); the buffer control component (5) is used to buffer air pressure; the bypass control component (4) is used for non-stop maintenance; A sewage control component (6) is installed at the bottom of the pressure compensation component (2); the sewage control component (6) is used to prevent air pressure leakage and sewage discharge; a discharge portion (7) is fixedly installed at the bottom of the tank body mounting component (1); The tank body mounting member (1) comprises: a tank body (101) and an inspection stop column (102); a circle of inspection stop columns (102) is slidably inserted on the tank body (101); flanges are respectively provided on a circle of the inspection stop columns (102); the flanges on a circle of the inspection stop columns (102) are respectively connected to the tank body (101) by bolts; and the ends of a circle of the inspection stop columns (102) are flush with the inner side of the tank body (101).

2. The buffer device for a methanol synthesis gas compressor according to claim 1, characterized in that: The tank body mounting member (1) further comprises a closing cover (103), and the closing cover (103) is fixedly mounted on the top of the tank body (101) by means of bolts.

3. The buffer device for a methanol synthesis gas compressor according to claim 2, characterized in that: The pressure compensation component (2) comprises: a disassembly cover (201), a propulsion hydraulic cylinder (202), a propulsion piston (203) and a one-way vent pipe (204); two disassembly covers (201) are fixedly mounted on the closing cover (103) by means of bolts; the two disassembly covers (201) are respectively fixedly mounted with propulsion hydraulic cylinders (202), and the output shafts of the propulsion hydraulic cylinders (202) pass through the disassembly covers (201); the output shafts of the two propulsion hydraulic cylinders (202) are fixedly mounted with propulsion pistons (203) by means of bolts, and the propulsion pistons (203) are slidably sleeved inside the tank body (101); the propulsion pistons (203) are fixedly mounted with a one-way vent pipe (204), and a one-way valve is provided inside the one-way vent pipe (204); the one-way valve inside the one-way vent pipe (204) is used to limit the transmission of airflow from top to bottom.

4. The buffer device for a methanol synthesis gas compressor according to claim 3, characterized in that: The flow diversion control component (3) comprises: a separation air intake pipe (301), a main pipe (302) and a branch pipe (303); the separation air intake pipe (301) is fixedly mounted on the tank body (101); the separation air intake pipe (301) passes through the tank body (101); a main pipe (302) is fixedly mounted on the bottom of the separation air intake pipe (301), and a solenoid valve is provided on the main pipe (302); a branch pipe (303) is fixedly mounted on the end of the separation air intake pipe (301), and a solenoid valve is provided on the branch pipe (303); a flange for docking with the compressor outlet pipe is provided on the separation air intake pipe (301); the main pipe (302) is located above the propulsion piston (203); and a threaded hole for connecting a pressure gauge is provided on the separation air intake pipe (301).

5. The buffer device for a methanol synthesis gas compressor according to claim 4, characterized in that: The bypass control component (4) comprises: a bypass pipe (401) and an air hole (4011); the bypass pipe (401) is fixedly mounted on the end of the branch pipe (303); the branch pipe (303) and the bypass pipe (401) are in communication; a circle of air holes (4011) is formed on the bypass pipe (401), and a distance is provided between the circle of air holes (4011) and the bottom of the closing cover (103); the bypass pipe (401) is slidably plugged into the middle of the propulsion piston (203).

6. The buffer device for a methanol synthesis gas compressor according to claim 5, characterized in that: The buffer control component (5) comprises: a buffer sleeve (501), an iron ring (5011) and a bevel retaining ring (5012); the buffer sleeve (501) is slidably sleeved inside the bypass pipe (401); an iron ring (5011) is fixedly mounted on the bottom of the buffer sleeve (501), and the iron ring (5011) is sleeved inside the bypass pipe (401); a row of bevel retaining rings (5012) are fixedly mounted on the inside of the buffer sleeve (501), and the bevel retaining rings (5012) are bevel annular structures; the bevel retaining rings (5012) are used to buffer air pressure.

7. The buffer device for a methanol synthesis gas compressor according to claim 6, characterized in that: The buffer control component (5) further comprises: a tension spring (502) and an electromagnet (503), wherein the tension spring (502) is sleeved inside the bypass tube (401); the end of the tension spring (502) is fixedly mounted on the buffer sleeve (501); the other end of the tension spring (502) is connected to the inner side of the bypass tube (401); an electromagnet (503) is fixedly mounted inside the bypass tube (401), and the electromagnet (503) is used to magnetically attract an iron ring (5011); the electromagnet (503) and the iron ring (5011) are respectively located on both sides of the air hole (4011); and the iron ring (5011) is used to shield the air hole (4011).

8. The buffer device for a methanol synthesis gas compressor according to claim 7, characterized in that: The sewage discharge control component (6) comprises: a detection sleeve (601), a spring (602) and a micro switch (603); the detection sleeve (601) is slidably inserted into the bottom of the propulsion piston (203); the spring (602) is fixedly installed inside the detection sleeve (601), and the spring (602) is located inside the propulsion piston (203); the other end of the spring (602) is connected to the inside of the propulsion piston (203); a gap is provided between the outside of the detection sleeve (601) and the propulsion piston (203); and the micro switch (603) is fixedly installed at the bottom of the detection sleeve (601).

9. The buffer device for a methanol synthesis gas compressor according to claim 8, characterized in that: The discharge part (7) comprises: a chassis (701) and a sewage pipe (702); the chassis (701) is fixedly mounted on the bottom of the tank body (101) by means of bolts; the sewage pipe (702) is fixedly mounted on the bottom of the chassis (701); and a solenoid valve is provided on the sewage pipe (702).

10. The buffer device for a methanol synthesis gas compressor according to claim 9, characterized in that: The discharge portion (7) further comprises an exhaust pipe (703); a support leg is provided at the bottom of the chassis (701); the exhaust pipe (703) is fixedly mounted at the bottom of the chassis (701), and a solenoid valve is provided on the exhaust pipe (703).

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