Novel sulfur recovery supercharger

Abstract

The utility model discloses a novel sulfur recovery supercharger which comprises a machine shell, a front end partition plate, a rear end partition plate, a front wall plate, a rear wall plate, an auxiliary oil tank and a gear box. Four sets of axial combined sealing structures are arranged on the center holes of the front end partition plate and the rear end partition plate, each axial combined sealing structure comprises a packing seal, an inflation seal and an O-shaped ring seal, the packing seals and the O-shaped ring seals are sequentially arranged on the two sides of each inflation seal, and inflation connectors communicated with the inflation seals are formed in the inner walls of the center holes. An air supply connecting pipe is arranged at the top of the shell. The device further comprises an air supply pipe set which is fixed in the heat preservation cavity and used for communicating the air inflation connector with the air supply connecting pipe. And the pressure stabilizing assembly is used for adjusting the pressure at the inflation sealing position according to the outlet pressure, and safety redundancy is provided. According to the utility model, the problem of high manufacturing and operating cost of the existing sulfur recovery supercharger is solved, and meanwhile, safety redundancy is provided for the supercharger so as to prevent the supercharger from being damaged due to leakage of sulfur steam.

Description

Technical Field

[0001] The utility model relates to the technical field of blowers, in particular to a novel sulfur recovery booster. Background Art

[0002] A blower is a device used to transport gas. Its structure includes a cylinder composed of a casing, a front partition (wall) plate, and a rear partition (wall) plate, and an auxiliary oil tank and a gear oil tank are installed on the front and rear wall plates. The casing is equipped with a pile of parallel main and slave rotor groups, as well as synchronous gears with external teeth meshing with each other. The blower adopts a horizontal structure, and the airflow direction is up-in and down-out. Its four axial seals usually adopt labyrinth or expansion ring seals, and the flow-through parts usually adopt ordinary cast iron. Blowers of this structure are only suitable for conveying clean, non-toxic, harmless neutral gases such as air, and the inlet temperature is generally not higher than 40°C. When conveying dusty, flammable, explosive and corrosive media, such as gases containing sulfur vapor, this structure of the blower has poor sealing effect and short service life. Especially when conveying high-temperature gases above 100°C, it is very difficult to control the gap in the machine body. Due to thermal expansion and contraction, the moving parts lose the original gap and rub against each other, causing the unit to be in a fault state for a long time and unable to operate normally.

[0003] Among the booster compressors currently available on the market for conveying special media such as sulfur vapor, there is a new type of sulfur recovery booster disclosed in announcement number CN204003631 U, which is designed with an axial combined sealing structure including a packing seal, an inflation seal, and an O-ring seal, and an annular steam insulation chamber is arranged on the outside of the boosting chamber, which can ensure the stable conveying of sulfur vapor and avoid crystallization or leakage of sulfur vapor in the booster, which affects the normal operation of the booster.

[0004] However, when supplying heated nitrogen to the inflatable seal, the nitrogen needs to be heated independently, which will increase the complexity of the equipment and invisibly increase the manufacturing and operating costs of the supercharger. In addition, the pressure at the inflatable seal needs to be at least not less than the pressure of the transmitted gas, but this solution lacks a safety redundancy structure. When the pressure regulating device involved in regulating the nitrogen pressure fails, the nitrogen pressure at the inflatable seal will be less than the outlet pressure of the supercharger, which is prone to sulfur vapor leakage, resulting in safety hazards for the supercharger. Utility Model Content

[0005] In view of the above-mentioned deficiencies existing in the prior art, the purpose of the utility model is to provide a new type of sulfur recovery booster, which solves the problems of high manufacturing and operating costs existing in the existing sulfur recovery booster, and at the same time provides safety redundancy for the booster to avoid damage to the booster due to sulfur vapor leakage.

[0006] The technical solution adopted by the utility model to achieve the above-mentioned purpose is: a new type of sulfur recovery booster, including: a casing, a front end partition and a rear end partition mounted on both ends of the casing, a front wall plate and a rear wall plate respectively mounted on the outer ends of the front end partition and the rear end partition, and an auxiliary oil tank and a gear box respectively mounted on the outer ends of the front wall plate and the rear wall plate.

[0007] A driving rotor part and a driven rotor part which are arranged in parallel are rotatably installed inside the housing, and reversing gears which are kept meshing with each other are mounted on the driving rotor part and the driven rotor part.

[0008] The casing, the front baffle and the rear baffle form a cylinder, in which a boost chamber and a heat preservation chamber arranged outside the boost chamber are provided, the boost chamber and the heat preservation chamber are isolated from each other, and the active rotor part and the driven rotor part are arranged in the boost chamber.

[0009] Four groups of axial combined sealing structures are arranged on the central holes of the front end partition plate and the rear end partition plate, and the axial combined sealing structure includes a packing seal, an inflatable seal, and an O-ring seal.

[0010] Both sides of the inflation seal are sequentially arranged with packing seals and O-ring seals, the inner wall of the central hole is provided with an inflation interface connected with the inflation seal, and the top of the housing is provided with an air supply pipe.

[0011] It also includes an air supply pipe group, which is fixed in the heat preservation cavity and is used to connect the inflation interface with the air supply pipe.

[0012] It also includes a pressure stabilizing component, which includes: a pressure regulating cylinder A connected to the air supply pipe, a pressure regulating cylinder B connected to the exhaust interface on the casing, and a connecting oil pipe for connecting the pressure regulating cylinder A and the pressure regulating cylinder B. The pressure regulating cylinder A and the pressure regulating cylinder B are respectively equipped with pistons A and pistons B, and the connecting passage between the pistons A and B is filled with hydraulic oil.

[0013] In some of the implementations, in order to ensure that the gas supply pipe group can be stably arranged in the insulation chamber and realize the stable delivery of filling nitrogen from the gas supply pipe to the charging interface, the following technical solutions are provided.

[0014] The air supply pipe group includes a C-shaped through pipe, a straight through pipe, and an L-shaped through pipe. The C-shaped through pipe and the straight through pipe are arranged in the casing. The air supply connecting pipe is connected to the middle section of the C-shaped through pipe. Both ends of the C-shaped through pipe are connected to straight through pipes. The L-shaped through pipe is arranged in the front end partition and the rear end partition. Both ends of the L-shaped through pipe are connected to the inflation interface and the end of the straight through pipe at the corresponding position.

[0015] In some of the implementations, in order to ensure that the saturated steam in the insulation chamber can circulate and flow, and to repeatedly heat it outside the booster to ensure the insulation effect of the nitrogen and the gas transmitted by the booster, the following technical solutions are provided.

[0016] The top of the rear partition is equipped with a heat medium inlet, and the bottom of the front partition is equipped with a heat medium outlet. The heat medium inlet and the heat medium outlet are both connected to the insulation chamber. The exhaust interface on the casing is arranged close to the heat medium inlet, and the air intake interface on the casing is arranged close to the heat medium outlet.

[0017] In some of the implementations, in order to ensure that piston A and piston B can stably move within the specific stroke range of pressure regulating cylinder A and pressure regulating cylinder B respectively, and avoid excessive movement leading to damage to the cylinder, the following technical solutions are provided.

[0018] Two groups of limit rings A are fixedly connected in the pressure regulating cylinder A, and the piston A is arranged between the two groups of limit rings A; two groups of limit rings B are fixedly connected in the pressure regulating cylinder B, and the piston B is arranged between the two groups of limit rings B.

[0019] In some of the implementations, in order to ensure that the pressure regulating cylinder A is connected to the air supply pipe, and at the same time prevent the nitrogen in the air supply pipe group and the inflation seal from flowing back into the pressure regulating cylinder A due to the pressure difference, resulting in a decrease in the nitrogen pressure at the inflation seal and affecting the sealing effect on sulfur vapor, the following technical solution is provided.

[0020] The side wall of the pressure regulating cylinder A is equipped with an air supply interface A which is connected to the air supply pipe. The air supply interface A is arranged on the outside of the limiting ring A. A one-way valve A is installed on the air supply interface A.

[0021] In some of the implementations, in order to stably supply nitrogen to the air supply pipe through the pressure regulating cylinder A, the nitrogen pressure of the inflation seal can be adjusted according to the outlet pressure of the booster so that under normal operation, the difference between the outlet pressure and the nitrogen pressure is maintained within a specific level range. The following technical solution is provided for this.

[0022] The side wall of the pressure regulating cylinder A is equipped with an air supply interface B, which is arranged on the outside of the limiting ring A, and a one-way valve B is installed on the air supply interface B.

[0023] In some of the implementations, in order to ensure that the supercharger is stably installed on the base component, the following technical solutions are provided.

[0024] The bottoms of the front wall panels and the rear wall panels are both fixedly connected with support cushions, the support cushions are provided with weight-reducing holes, and the feet of the support cushions are provided with vertically arranged assembly through holes.

[0025] Beneficial effects of the utility model:

[0026] 1. The utility model is provided with an air supply pipe group arranged in the insulation chamber. When nitrogen is added to the inflation seal, it can be heated by means of saturated steam circulating in the insulation chamber to ensure that the nitrogen temperature at the inflation seal is higher than the crystallization temperature of sulfur vapor, thereby avoiding the crystallization of sulfur vapor at the axial combined sealing structure, so as to solve the problem of high manufacturing and operating costs of existing sulfur recovery boosters.

[0027] 2. The utility model is provided with a pressure stabilizing component as a safety redundant component for supplying nitrogen and maintaining the relationship between nitrogen and the outlet pressure. When the atmospheric pressure at the inflation seal decreases, the pressure stabilizing component can be used to replenish nitrogen to the inflation seal so that it is at least maintained at a level equal to the outlet pressure, thereby avoiding the leakage of sulfur vapor and causing damage to the supercharger after a failure of the device for regulating the nitrogen pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a cross-sectional schematic diagram of the utility model after being cut along a horizontal plane;

[0029] Figure 2 for Figure 1 A schematic diagram of the enlarged details of part A;

[0030] Figure 3 It is a cross-sectional schematic diagram of the casing after being cut along a vertical plane;

[0031] Figure 4 It is a cross-sectional schematic diagram of the combination of the housing and the front and rear partitions after being cut along a vertical plane;

[0032] Figure 5 for Figure 4 A schematic diagram of the enlarged detail of part B;

[0033] Figure 6 It is a schematic diagram of the structure of the pressure regulating cylinder A (cutaway state) and the components installed therein.

[0034] In the figure: 101 housing, 102 front baffle, 103 rear baffle, 104 front wall, 105 rear wall, 106 auxiliary oil tank, 107 gear box, 108 active rotor part, 109 driven rotor part, 110 reversing gear, 111 boost chamber, 112 insulation chamber, 113 center hole, 114 air inlet interface, 115 exhaust interface, 116 charging interface, 117 air supply pipe, 118 heat medium inlet, 119 heat medium outlet, 12 0 support cushion, 201 packing seal, 202 inflatable seal, 203 O-ring seal, 300 bearing, 401C-type through pipe, 402 linear through pipe, 403L-type through pipe, 501 pressure regulating cylinder A, 502 pressure regulating cylinder B, 503 connecting oil pipe, 504 piston A, 505 piston B, 506 limit ring A, 507 limit ring B, 508 air supply interface A, 509 one-way valve A, 510 air supply interface B, 511 one-way valve B. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] See also Figure 1-6 A novel sulfur recovery booster comprises: a casing 101, a front baffle 102 and a rear baffle 103 mounted at both ends of the casing 101, a front wall plate 104 and a rear wall plate 105 mounted on the outer ends of the front baffle 102 and the rear baffle 103 respectively, and an auxiliary oil tank 106 and a gear box 107 mounted on the outer ends of the front wall plate 104 and the rear wall plate 105 respectively.

[0037] A driving rotor portion 108 and a driven rotor portion 109 arranged in parallel are rotatably mounted inside the housing 101 . A reversing gear 110 is mounted on each of the driving rotor portion 108 and the driven rotor portion 109 to be meshed with each other.

[0038] The casing 101, the front partition plate 102, and the rear partition plate 103 form a cylinder, in which a boost chamber 111 and a heat preservation chamber 112 arranged outside the boost chamber 111 are opened. The boost chamber 111 and the heat preservation chamber 112 are kept isolated from each other, and the active rotor part 108 and the driven rotor part 109 are arranged in the boost chamber 111.

[0039] Four groups of axial combined sealing structures are arranged on the central holes 113 of the front partition plate 102 and the rear partition plate 103 . The axial combined sealing structures include a packing seal 201 , an inflatable seal 202 , and an O-ring seal 203 .

[0040] The casing 101, the front baffle 102, the rear baffle 103, the front wall panel 104, the rear wall panel 105, the auxiliary oil tank 106, and the gear box 107 are fixed together by bolts, and a sealing layer is provided at the connecting position of each component to ensure the sealing effect of each structure of the supercharger.

[0041] The housing 101 is provided with an air inlet interface 114 and an air outlet interface 115 , which pass through the outer insulation chamber 112 and are connected with the inner pressurization chamber 111 , so that gas can enter and exit the pressurization chamber 111 and achieve transmission and pressurization.

[0042] Two groups of center holes 113 are provided on the front baffle 102 and the rear baffle 103 to ensure that the active rotor part 108 and the driven rotor part 109 are stably assembled in the two groups of center holes 113, and the active rotor part 108, the driven rotor part 109 and the center holes 113 are assembled with clearance fit, and the axial combined sealing structure is placed in the clearance position.

[0043] Two groups of bearings 300 are installed between the front wall plate 104 and the auxiliary oil tank 106, and between the rear wall plate 105 and the gear box 107. The active rotor part 108 and the driven rotor part 109 are installed in the bearings 300 at corresponding positions to ensure the stable operation of the active rotor part 108 and the driven rotor part 109. The rear ends of the active rotor part 108 and the driven rotor part 109 are fixedly equipped with reversing gears 110. The two groups of reversing gears 110 are arranged in the gear box 107 and maintain meshing connection. The setting of the reversing gears 110 can ensure that the active rotor part 108 and the driven rotor part 109 maintain reverse and constant speed operation, thereby making the rotors on the upper rotor part cooperate to operate, so as to realize the supercharging of the sulfur-containing steam gas entering the supercharging chamber 111.

[0044] The front end of the active rotor part 108 extends from the outside of the auxiliary oil tank 106 to the outside of the supercharger, so as to facilitate an external power source (usually a motor drive) to drive the active rotor part 108 to operate stably.

[0045] The heat preservation chamber 112 is isolated from the boost chamber 111. When circulating saturated steam is introduced into the heat preservation chamber 112, the steam temperature is usually set at 150°C, which is conducive to keeping the sulfur vapor in the boost chamber 111 always higher than its crystallization temperature, preventing the sulfur vapor from crystallizing on the active rotor part 108 and the driven rotor part 109, and avoiding interference with the normal operation of the active rotor part 108 and the driven rotor part 109. In addition, when the supercharger is operating normally, the gas pressure in the boost chamber 111 increases and the temperature rises. The flowing saturated steam can take away the excess heat, play a role in cooling and dissipating the heat of the supercharger, so that the supercharger is maintained at around 150°C, ensuring the long-term stable operation of the equipment.

[0046] The setting of the axial combined sealing structure can prevent the pressurized gas transmitted in the boost chamber 111 from leaking through the assembly gap between the active rotor part 108, the driven rotor part 109 and the center hole 113. After the gas containing sulfur vapor enters the bearing 300, the gear box 107 and the auxiliary oil tank 106 through the assembly gap and crystallizes, it will interfere with the normal operation of the active rotor part 108 and the driven rotor part 109. Therefore, the setting of the axial combined sealing structure can ensure the operating stability of the booster when transmitting sulfur vapor.

[0047] A packing seal 201 and an O-ring seal 203 are sequentially arranged on both sides of the inflation seal 202 . An inflation interface 116 connected to the inflation seal 202 is provided on the inner wall of the central hole 113 . An air supply pipe 117 is provided on the top of the housing 101 .

[0048] It also includes an air supply pipe group, which is fixed in the heat preservation chamber 112 and is used to connect the inflation interface 116 and the air supply pipe 117 .

[0049] It also includes a pressure stabilizing component, which includes: a pressure regulating cylinder A501 connected to the air supply pipe 117, a pressure regulating cylinder B502 connected to the exhaust interface 115 on the casing 101, a connecting oil pipe 503 for connecting the pressure regulating cylinder A501 and the pressure regulating cylinder B502, the pressure regulating cylinder A501 and the pressure regulating cylinder B502 are respectively equipped with a piston A504 and a piston B505, and the connecting passage between the piston A504 and the piston B505 is filled with hydraulic oil.

[0050] In the pressure regulating cylinder A501, nitrogen is filled between the piston A504 and the air supply pipe 117, and the nitrogen is transported to each group of inflation interfaces 116 through the air supply pipe group arranged in the insulation chamber 112, and then supplies air to the inflation seal 202. At the same time, the nitrogen can be heated to about 150°C by the saturated steam in the insulation chamber 112 during the transmission process of the air supply pipe group, so as to ensure that the temperature of the nitrogen transported to the inflation seal 202 is maintained at about 150°C, so as to avoid the sulfur vapor at the position of the axial combined sealing structure due to its too low temperature causing crystallization.

[0051] The pressure of the nitrogen filled in the inflatable seal 202 is not less than the outlet pressure of the supercharger (the gas pressure at the exhaust interface 115). Normally, the difference between the nitrogen pressure of the inflatable seal 202 and the outlet pressure is 80 kPa.

[0052] The packing seal 201 is used to isolate the flow channel of sulfur vapor from the outside. The packing seal 201 and the inflation seal 202 are combined to form a backflush for the transmitted gas, so that the injected nitrogen leaks inwardly instead of leaking the transmitted gas in the boost chamber 111. The O-ring seal 203 is a static seal, and its function is to block the leakage channel between static connectors.

[0053] The function of the pressure stabilizing assembly is to provide a safety redundant component so that the nitrogen pressure at the inflation seal 202 is always not less than the gas pressure at the position of the supercharger exhaust interface 115, thereby preventing the transmitted gas medium from leaking into the axial combined sealing structure.

[0054] When the pressure at the exhaust interface 115 is greater than the nitrogen pressure at the inflation seal 202 (i.e., the pressure of the pressure regulating cylinder A501), the piston B505 in the pressure regulating cylinder B502 moves rearward under the action of the pressure difference, and then the hydraulic oil transmits the force to drive the piston A504 in the pressure regulating cylinder A501 to move forward, thereby squeezing the nitrogen in the pressure regulating cylinder A501 to supply to the inflation seal 202, so as to ensure that the pressure at the inflation seal 202 is not less than the pressure at the exhaust interface 115.

[0055] In order to ensure that the gas supply pipe group can be stably arranged in the heat preservation chamber 112 and realize the stable delivery of the filling nitrogen from the gas supply pipe 117 to the charging interface 116, the following technical solution is provided.

[0056] The air supply pipe group includes a C-shaped through pipe 401, a straight through pipe 402, and an L-shaped through pipe 403. The C-shaped through pipe 401 and the straight through pipe 402 are arranged in the casing 101. The air supply pipe 117 is connected to the middle section of the C-shaped through pipe 401. Both ends of the C-shaped through pipe 401 are connected to the straight through pipe 402. The L-shaped through pipe 403 is arranged in the front end partition 102 and the rear end partition 103. Both ends of the L-shaped through pipe 403 are connected to the inflation interface 116 and the end of the straight through pipe 402 at the corresponding position.

[0057] The nitrogen input from the air supply pipe 117 can be sequentially transported to the inflation interface 116 of each group of axial combined sealing structure positions through the C-shaped pipe 401, the straight pipe 402, and the L-shaped pipe 403, and then replenish nitrogen to the inflation seal 202 therein with the position pressure difference, thereby achieving the internal leakage effect of nitrogen.

[0058] Since the C-shaped through-tube 401 and the straight through-tube 402 are arranged in the insulation cavity 112 in the casing 101, and the L-shaped through-tube 403 is arranged in the insulation cavity 112 of the front partition 102 and the rear partition 103, the L-shaped through-tube 403 is in a disconnected state from the C-shaped through-tube 401 and the straight through-tube 402, and are respectively cast uniformly with the front partition 102, the rear partition 103 and the casing 101. During the assembly stage, the straight through-tube 402 is connected to the L-shaped through-tube 403 by docking.

[0059] In order to ensure that the saturated steam in the insulation chamber 112 can circulate and repeatedly heat it outside the booster to ensure the insulation effect of the nitrogen and the gas transmitted by the booster, the following technical solution is provided.

[0060] A heat medium inlet 118 is installed at the top of the rear partition 103, and a heat medium outlet 119 is installed at the bottom of the front partition 102. The heat medium inlet 118 and the heat medium outlet 119 are both connected to the insulation chamber 112. The exhaust interface 115 on the casing 101 is arranged close to the heat medium inlet 118, and the air intake interface 114 on the casing 101 is arranged close to the heat medium outlet 119.

[0061] The heat medium inlet 118 and the heat medium outlet 119 are connected to the steam heater to form a circulation path. The heated saturated steam is input into the insulation chamber 112 from the heat medium inlet 118, and is discharged from the heat medium outlet 119 after heat exchange with the transmission gas in the boosting chamber 111 and the nitrogen in the gas supply pipe group in the insulation chamber 112. The transmission direction of the saturated steam is opposite to the flow direction of the transmission gas in the boosting chamber 111, which can maximize the heat exchange efficiency.

[0062] In order to ensure that piston A504 and piston B505 can move stably within the specific stroke range of pressure regulating cylinder A501 and pressure regulating cylinder B502 respectively, and avoid damage to the cylinder due to excessive movement, the following technical solution is provided.

[0063] Two sets of limit rings A506 are fixedly connected in the pressure regulating cylinder A501, and the piston A504 is arranged between the two sets of limit rings A506. Two sets of limit rings B507 are fixedly connected in the pressure regulating cylinder B502, and the piston B505 is arranged between the two sets of limit rings B507.

[0064] The setting of the limiting ring A506 and the limiting ring B507 can limit the stroke of the piston A504 and the piston B505, thereby ensuring the long-term stable operation of the pressure regulating cylinder A501 and the pressure regulating cylinder B502.

[0065] In order to ensure that the pressure regulating cylinder A501 is connected with the air supply pipe 117, and at the same time prevent the nitrogen in the air supply pipe group and the inflation seal 202 from flowing back into the pressure regulating cylinder due to the pressure difference, resulting in a decrease in the nitrogen pressure at the inflation seal 202 and affecting the sealing effect on sulfur vapor, the following technical solution is provided.

[0066] The side wall of the pressure regulating cylinder A501 is equipped with an air supply interface A508 which is connected with the air supply pipe 117. The air supply interface A508 is arranged on the outside of the limiting ring A506. A one-way valve A509 is installed on the air supply interface A508.

[0067] The air supply interface A508 can be connected to the air supply pipe 117 on the housing 101, and the one-way valve A509 only allows the nitrogen in the pressure regulating cylinder A501 to be transmitted to the air supply pipe 117, so as to prevent the reverse flow of nitrogen and the failure of the inflation seal 202. The air supply interface A508 is arranged on the outside of the limit ring A506 to prevent the piston A504 from passing through the air supply interface A508 and causing the hydraulic oil to leak.

[0068] In order to stably supply nitrogen to the air supply pipe 117 through the pressure regulating cylinder A501, and to facilitate the adjustment of the nitrogen pressure of the inflation seal 202 according to the outlet pressure of the booster, so that under normal operation, the difference between the outlet pressure and the nitrogen pressure is maintained within a specific level range, the following technical solution is provided.

[0069] The side wall of the pressure regulating cylinder A501 is equipped with an air supply interface B510, which is arranged on the outside of the limiting ring A506, and a one-way valve B511 is installed on the air supply interface B510.

[0070] The air supply interface B510 can be connected to a nitrogen source, and a pressure regulating valve is arranged on it. According to the pressure change at the outlet of the booster, the pressure of the nitrogen injected is adjusted within a certain range so that the difference between the nitrogen pressure at the inflation seal 202 and the pressure at the outlet of the booster is maintained at about 80kPa.

[0071] Placing the air supply interface B510 on the outside of the limiting ring A506 can also prevent the leakage of hydraulic oil.

[0072] The one-way valve B511 can control the one-way transmission of nitrogen at the gas supply interface B510 to the pressure regulating cylinder A501.

[0073] In order to ensure that the supercharger is stably installed on the foundation component, the following technical solutions are provided.

[0074] The bottoms of the front wall panel 104 and the rear wall panel 105 are both fixedly connected with support cushion seats 120 . The support cushion seats 120 are provided with weight-reducing holes, and the feet of the support cushion seats 120 are provided with vertically arranged assembly through holes.

[0075] The provision of the weight-reducing holes can effectively reduce the deadweight of the support pad 120 , and the bolt assembly can be assembled in the assembly through hole to fix the bolt assembly to the underlying basic component, thereby achieving stable installation of the supercharger.

[0076] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0077] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A new type of sulfur recovery booster, comprising: A casing (101), a front baffle (102) and a rear baffle (103) mounted on both ends of the casing (101), a front wall plate (104) and a rear wall plate (105) mounted on the outer ends of the front baffle (102) and the rear baffle (103), respectively, and an auxiliary oil tank (106) and a gear box (107) mounted on the outer ends of the front wall plate (104) and the rear wall plate (105), respectively; A driving rotor part (108) and a driven rotor part (109) arranged in parallel are rotatably mounted inside the housing (101); a reversing gear (110) that meshes with each other is mounted on the driving rotor part (108) and the driven rotor part (109); The housing (101), the front baffle (102), and the rear baffle (103) form a cylinder, the cylinder is provided with a boost chamber (111) and a heat preservation chamber (112) arranged outside the boost chamber (111), the boost chamber (111) and the heat preservation chamber (112) are isolated from each other, and the active rotor part (108) and the driven rotor part (109) are arranged in the boost chamber (111); Four groups of axial combined sealing structures are provided on the central holes (113) of the front baffle (102) and the rear baffle (103), wherein the axial combined sealing structures include a packing seal (201), an inflatable seal (202), and an O-ring seal (203); The invention is characterized in that: a packing seal (201) and an O-ring seal (203) are sequentially arranged on both sides of the inflation seal (202); an inflation interface (116) connected to the inflation seal (202) is provided on the inner wall of the central hole (113); and an air supply pipe (117) is provided on the top of the housing (101); Also included is an air supply pipe group, the air supply pipe group is fixed in the heat preservation chamber (112), and the air supply pipe group is used to connect the inflation interface (116) and the air supply pipe (117); The invention also includes a pressure stabilizing component, which includes: a pressure regulating cylinder A (501) connected to an air supply pipe (117), a pressure regulating cylinder B (502) connected to an exhaust port (115) on a housing (101), and a connecting oil pipe (503) for connecting the pressure regulating cylinder A (501) and the pressure regulating cylinder B (502), wherein the pressure regulating cylinder A (501) and the pressure regulating cylinder B (502) are respectively equipped with a piston A (504) and a piston B (505), and the connecting passage between the piston A (504) and the piston B (505) is filled with hydraulic oil.

2. A novel sulfur recovery booster according to claim 1, characterized in that: The air supply pipe group comprises a C-shaped through pipe (401), a straight through pipe (402), and an L-shaped through pipe (403); the C-shaped through pipe (401) and the straight through pipe (402) are arranged in the housing (101); the air supply pipe (117) is connected to the middle section of the C-shaped through pipe (401); both ends of the C-shaped through pipe (401) are connected to the straight through pipe (402); the L-shaped through pipe (403) is arranged in the front baffle (102) and the rear baffle (103); and both ends of the L-shaped through pipe (403) are connected to the inflation interface (116) and the end of the straight through pipe (402) at corresponding positions.

3. A novel sulfur recovery booster according to claim 1, characterized in that: The top of the rear baffle (103) is equipped with a heat medium inlet (118), and the bottom of the front baffle (102) is equipped with a heat medium outlet (119); the heat medium inlet (118) and the heat medium outlet (119) are both connected to the heat preservation chamber (112); the exhaust port (115) on the casing (101) is arranged close to the heat medium inlet (118), and the air intake port (114) on the casing (101) is arranged close to the heat medium outlet (119).

4. A novel sulfur recovery booster according to claim 1, characterized in that: Two sets of limit rings A (506) are fixedly connected in the pressure regulating cylinder A (501), and the piston A (504) is arranged between the two sets of limit rings A (506). Two sets of limit rings B (507) are fixedly connected in the pressure regulating cylinder B (502), and the piston B (505) is arranged between the two sets of limit rings B (507).

5. A novel sulfur recovery booster according to claim 4, characterized in that: The side wall of the pressure regulating cylinder A (501) is provided with an air supply interface A (508) which is connected to the air supply pipe (117). The air supply interface A (508) is arranged on the outside of the limiting ring A (506). A one-way valve A (509) is provided on the air supply interface A (508).

6. A novel sulfur recovery booster according to claim 4, characterized in that: The side wall of the pressure regulating cylinder A (501) is equipped with an air supply interface B (510), and the air supply interface B (510) is arranged on the outside of the limiting ring A (506). The air supply interface B (510) is equipped with a one-way valve B (511).

7. The novel sulfur recovery booster according to claim 1 is characterized in that: The bottoms of the front wall plate (104) and the rear wall plate (105) are both fixedly connected to a support cushion seat (120), a weight-reducing hole is provided on the support cushion seat (120), and a vertically arranged assembly through hole is provided at the foot of the support cushion seat (120).

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