Multi-stage pressure relief natural gas desulfurization, filtration and separation device

Abstract

The utility model belongs to the technical field of natural gas desulfurization, and particularly relates to a multi-stage pressure relief natural gas desulfurization, filtration and separation device which comprises a desulfurization box, and the front side and the rear side of the desulfurization box are grounded through supporting legs. According to the utility model, three groups of fixed filter plates and movable filter plates which are staggered in opposite inclination directions cooperate to prolong the ascending path of natural gas so as to reduce the flow velocity, and meanwhile, the rotary spraying unit is combined to realize full gas-liquid contact, so that the hydrogen sulfide reaction efficiency is improved; the vibrating mechanism drives the T-shaped rack to collide with the desulfurization box at high frequency, the fixed filter plate and the movable filter plate are linked to vibrate synchronously, and the movable filter plate is controlled to move by matching with stretching of the air cylinder, so that filter hole blockages are dynamically removed, impurities are intensively discharged, and the stability of continuous desulfurization operation is guaranteed; the double-cavity block recovery unit synchronously driven by the lead screw is matched with the shunting design of the elastic hose, so that the classified recovery switching of unreacted alkali liquor and solid impurities and the rapid cleaning of sediments on the surface of the filter plate in a non-shutdown state are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas desulfurization technical field especially relates to a multistage pressure relief's natural gas desulfurization filter separation device. BACKGROUND

[0002] Natural gas usually contains a certain amount of sulfide, such as hydrogen sulfide and methyl mercaptan, these sulfides will produce toxic substances, such as sulfur dioxide and sulfur oxide in the combustion process, cause serious harm to the environment and human health, therefore, in the development, transportation and utilization of natural gas, natural gas desulfurization is crucial, need to provide a kind of high-efficiency desulfurization device.

[0003] A natural gas desulfurization device is disclosed in the patent with the publication number CN222250628U, which includes a desulfurization tank, which is hollow, multiple filter hoppers are arranged in the desulfurization tank in a stacked and spaced manner, and among the adjacent two filter hoppers, the upper filter hopper has a larger diameter to cover the lower filter hopper; an alkali solution pipe, one end of which is connected to an external alkali solution storage tank, the other end of which penetrates from the top of the desulfurization tank and successively penetrates the centers of all filter hoppers, and multiple liquid discharge holes are formed in the part of the alkali solution pipe above each filter hopper. The utility model first utilizes the reaction of alkali solution and sulfide for desulfurization, and then utilizes the adsorbent for further desulfurization, which can effectively remove the sulfides in natural gas and reduce the sulfur content. Moreover, the novel adsorbent has a high recycling rate, which can reduce the operating cost, energy consumption, and the impact of the desulfurization process on the environment.

[0004] However, in the above-mentioned device, the fine particulate matter generated by the sulfidation reaction continuously deposits in the filter hopper mesh under the action of the alkali solution, causing blockage, and the residual alkali solution that has not fully reacted combines with the sulfide particles to form viscous gel, exacerbating the decline in pore flux, forcing the device to frequently shut down for maintenance, and severely restricting the desulfurization efficiency and continuous operation stability. SUMMARY

[0005] To solve the above technical problems, the utility model provides a multistage pressure relief's natural gas desulfurization filter separation device to solve the above-mentioned device in prior art, when the filter hopper desulfurizes natural gas, the fine particulate matter generated by the sulfidation reaction continuously deposits in the filter hopper mesh under the action of the alkali solution, causing blockage, and the residual alkali solution that has not fully reacted combines with the sulfide particles to form viscous gel, exacerbating the decline in pore flux, forcing the device to frequently shut down for maintenance, and severely restricting the desulfurization efficiency and continuous operation stability.

[0006] The utility model provides a kind of multi-stage pressure relief's natural gas desulfurization filter separation device, including desulfurization tank, front and back two sides are connected by support leg Ground, right side is equipped with chute one, air inlet pipe, one end is communicated in desulfurization tank right side, the other end is communicated with external desulfurization natural gas pipeline, spraying unit, setting at the top of desulfurization tank, for uniform spraying to desulfurization tank inner chamber with lye, fixed filter plate and movable filter plate, both are set in desulfurization tank inside, the fixed filter plate is three groups, and adjacent opposite oblique direction staggered mode is welded in desulfurization tank inner wall, movable filter plate is slid in desulfurization tank by chute one, connecting plate, it is equipped with two groups, and it is fixedly connected in the left and right sides of desulfurization tank, recovery unit, between two groups connecting plate, for collecting and guiding the unreacted lye and the solid particles generated by desulfurization reaction, cylinder, cylinder body is fixedly installed in the top of left connecting plate by mounting seat, and its piston rod is fixed with movable filter plate side, vibration mechanism, setting in the right side of desulfurization tank, for vibrating the reaction particles on the top of fixed filter plate and movable filter plate, gas outlet pipe, one end is communicated in the top of desulfurization tank, the other end is communicated with external equipment by natural gas pipeline.

[0007] Preferably, the spraying unit includes a bearing seat provided on the top of the desulfurization tank, the bearing seat is fixedly connected with the desulfurization tank through a support rod, a liquid outlet pipe is communicated in the bearing seat, the liquid outlet pipe extends into the interior of the desulfurization tank, a spray head is communicated with one end of the liquid outlet pipe, a gear ring is fixedly connected outside the liquid outlet pipe, an L-shaped mounting plate is fixedly connected on the top of the desulfurization tank, a driving motor is fixedly installed on the top of the L-shaped mounting plate, a gear is fixedly connected with the output end of the driving motor, and the gear is meshingly connected with the gear ring.

[0008] Preferably, the recovery unit includes a lead screw rotatably connected between the two connecting plates, two fixed rods fixedly connected between the two connecting plates, the two fixed rods are symmetrically distributed on the front and back sides of the lead screw, a stepping motor is fixedly installed on the outer surface of the left connecting plate, the output end of the stepping motor is fixed with one end of the lead screw, two cavity blocks are threadedly connected outside the lead screw, the cavity blocks slide outside the two fixed rods, a discharging pipe is communicated on the top of each cavity block, the upper end opening of the discharging pipe is matched with the outlet at the bottom of the desulfurization tank, an elastic hose is communicated at the bottom of each cavity block, one end of each elastic hose away from the cavity block is respectively communicated with a lye collecting tank and an impurity collecting tank.

[0009] Preferably, the vibration mechanism includes a bearing plate fixedly connected with the right side of the desulfurization tank, a driving motor is fixedly installed on the rear side of the bearing plate, the output end of the driving motor extends to the front side of the bearing plate, and a rotating disc is fixedly connected with the output end, a matching rod is rotatably connected with the front side of the bearing plate, a rectangular long rod is fixedly connected with the matching rod, and a second sliding groove is formed on the outer surface of the rectangular long rod.

[0010] Preferably, the vibrating mechanism further comprises a fixed column eccentrically arranged at the front side of the rotating disc, the fixed column is slidably arranged in the second sliding groove, a fan-shaped toothed plate fixedly connected to the bottom of the rectangular long rod, a T-shaped rack engaged with the fan-shaped toothed plate, the T-shaped rack is slidably arranged on the bearing plate, and a contact block fixedly connected to the left side of the T-shaped rack.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] 1、The utility model discloses a natural gas desulfurization device, which comprises a desulfurization box, a rotating spraying unit, a vibrating mechanism, a T-shaped rack, a contact block, a fixed filter plate and a movable filter plate.

[0013] 2、The utility model discloses a natural gas desulfurization device, which comprises a desulfurization box, a rotating spraying unit, a vibrating mechanism, a T-shaped rack, a contact block, a fixed filter plate and a movable filter plate.

[0014] 3、The utility model discloses a natural gas desulfurization device, which comprises a desulfurization box, a rotating spraying unit, a vibrating mechanism, a T-shaped rack, a contact block, a fixed filter plate and a movable filter plate. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is the inside section three-dimensional structure schematic diagram of the utility model's desulfurization box;

[0017] Figure 3 It is the three-dimensional structure schematic diagram of the utility model's Figure 2 It is the three-dimensional structure schematic diagram of the utility model's

[0018] Figure 4 It is the three-dimensional structure schematic diagram of the utility model's recycling unit;

[0019] Figure 5 It is the three-dimensional structure schematic diagram of the utility model's vibrating mechanism.

[0020] In the drawing:

[0021] 1、Desulfurization box;101、Supporting leg;102、Sliding groove one;

[0022] 2、Gas inlet pipe;

[0023] 3, spray unit; 301, bearing with seat; 302, support rod; 303, liquid outlet pipe; 304, spray head; 305, gear ring; 306, L-shaped mounting plate; 307, driving motor one; 308, gear;

[0024] 4, fixed filter plate; 5, movable filter plate;

[0025] 6, connecting plate;

[0026] 7, recovery unit; 701, lead screw; 702, fixed rod; 703, stepper motor; 704, cavity block; 705, blanking pipe; 706, elastic hose;

[0027] 8, air cylinder;

[0028] 9, vibration mechanism; 901, bearing plate; 902, driving motor two; 903, rotary disc; 904, matching rod; 905, rectangular long rod; 906, sliding groove two; 907, fixed column; 908, fan-shaped tooth plate; 909, T-shaped rack; 910, contact block;

[0029] 10, air outlet pipe. DETAILED DESCRIPTION

[0030] The embodiments of the present application will be further described in detail below with reference to the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0031] Example one:

[0032] As shown in the accompanying Figure 1 to the accompanying Figure 5 The present application provides a multi-stage pressure relief natural gas desulfurization filter separation device, which comprises a desulfurization tank 1, which is grounded through support legs 101 on the front and back sides, and a sliding groove one 102 is formed on the right side. An air inlet pipe 2 is connected to the right side of the desulfurization tank 1 at one end and communicates with the external desulfurization natural gas pipeline at the other end. A spray unit 3 is arranged at the top of the desulfurization tank 1 and is used to uniformly spray alkali solution into the inner cavity of the desulfurization tank 1. A fixed filter plate 4 and a movable filter plate 5 are both arranged inside the desulfurization tank 1. The fixed filter plate 4 is three groups and is welded on the inner wall of the desulfurization tank 1 in a staggered manner with opposite inclined directions of adjacent ones. The movable filter plate 5 slides in the desulfurization tank 1 through the sliding groove one 102. Two connecting plates 6 are arranged and fixedly connected to the left and right sides of the desulfurization tank 1. A recovery unit 7 is arranged between the two connecting plates 6 and is used to collect and guide the unreacted alkali solution and the solid particles generated by the desulfurization reaction. An air cylinder 8 is fixedly installed on the top of the left connecting plate 6 through a mounting seat, and the piston rod thereof is fixed to one side of the movable filter plate 5. A vibration mechanism 9 is arranged on the right side of the desulfurization tank 1 and is used to vibrate the reaction particles on the top of the fixed filter plate 4 and the movable filter plate 5. An air outlet pipe 10 is connected to the top of the desulfurization tank 1 at one end and communicates with the external equipment through the natural gas pipeline at the other end.

[0033] As can be seen from the above, when desulfurizing natural gas, the natural gas to be desulfurized in the external pipeline enters the inside of the desulfurization tank 1 through the gas inlet pipe 2, the natural gas rises through the three groups of fixed filter plates 4 which are arranged in opposite inclined directions and staggered, effectively reducing the rising speed of the natural gas to be treated, and the inside of the desulfurization tank 1 is uniformly sprayed with lye by the spraying unit 3, the lye reacts with hydrogen sulfide in the natural gas to form part of the hydrogen sulfide fixed impurities, the hydrogen sulfide fixed impurities will accumulate in the filter holes inside the fixed filter plates 4 to cause the fixed filter plates 4 to be blocked, the desulfurization tank 1 is vibrated by the vibration mechanism 9, and then the hydrogen sulfide fixed impurities slide to the top of the movable filter plate 5 in turn through the inclined fixed filter plates 4, and the vibration mechanism 9 also avoids the fixed filter plates 4 from being blocked by the hydrogen sulfide fixed impurities, the lye which has not fully reacted enters the lye collection tank through the fixed filter plates 4, when there are more fixed impurities above the fixed filter plates 4, the air cylinder 8 is opened, the fixed filter plates 4 slide out of the desulfurization tank 1 through the sliding groove one 102, and the hydrogen sulfide fixed impurities on the top of the fixed filter plates 4 will fall due to the blockage of the inner wall of the desulfurization tank 1, at this time, the desulfurization tank 1 is switched to be communicated with the impurity collection tank through the recovery unit 7, so that the hydrogen sulfide fixed impurities enter the impurity collection tank, and the desulfurized natural gas enters the next process again through the gas outlet pipe 10.

[0034] Example two:

[0035] As shown in the accompanying drawings, Figure 3 The embodiment is basically the same as the previous embodiment, the difference is that the spraying unit 3 includes a bearing with seat 301 arranged at the top of the desulfurization tank 1, the bearing with seat 301 is fixedly connected with the desulfurization tank 1 through the support rod 302, the bearing with seat 301 is communicated with the liquid outlet pipe 303, the liquid outlet pipe 303 extends to the inside of the desulfurization tank 1, the spray head 304 communicated with one end of the liquid outlet pipe 303, the gear ring 305 fixedly connected outside the liquid outlet pipe 303, the L-shaped mounting plate 306 fixedly connected at the top of the desulfurization tank 1, the driving motor one 307 fixedly installed at the top of the L-shaped mounting plate 306, the gear 308 fixedly connected at the output end of the driving motor one 307, and the gear 308 is meshed with the gear ring 305.

[0036] As can be seen from the above, when spraying lye into the desulfurization tank 1, first, the external lye is communicated with the bearing with seat 301 and the external spraying switch is opened, the lye makes the spray head 304 spray lye through the liquid outlet pipe 303, at the same time, the driving motor one 307 is opened, the driving motor one 307 drives the gear 308 to rotate, and then drives the gear ring 305 to rotate, the gear ring 305 is fixedly connected with the liquid outlet pipe 303, so that the spray head 304 rotates through the liquid outlet pipe 303, and the spraying effect is further improved through the continuous rotation of the spray head 304.

[0037] Example three:

[0038] As attached Figure 4 As shown, this embodiment is basically the same as the previous embodiment, except that the recovery unit 7 includes a lead screw 701 rotatably connected between two sets of connecting plates 6, a fixing rod 702 fixedly connected between the two sets of connecting plates 6, and the two sets of fixing rods 702 are symmetrically distributed on the front and rear sides of the lead screw 701. A stepper motor 703 is fixedly installed on the outer surface of the left connecting plate 6. The output end of the stepper motor 703 is fixed to one end of the lead screw 701. Two hollow blocks 704 are threadedly connected to the outside of the lead screw 701. The hollow blocks 704 slide on the outside of the two sets of fixing rods 702. The top of each hollow block 704 is connected to a feed pipe 705. The upper opening of the feed pipe 705 is adapted to the bottom outlet of the desulfurization box 1. The bottom of each hollow block 704 is connected to an elastic hose 706. The ends of the two elastic hoses 706 away from the hollow block 704 are respectively connected to an alkali collection box and an impurity collection box.

[0039] As can be seen from the above, when switching between the alkali collection tank and the impurity collection tank and the desulfurization tank 1, the stepper motor 703 is turned on. The stepper motor 703 drives the lead screw 701 to rotate. Guided by the two sets of fixed rods 702, the two cavity blocks 704 are moved until the cavity block 704 to be switched moves to the bottom of the desulfurization tank 1. With the cooperation of the discharge pipe 705, the alkali or impurities enter the cavity block 704, and then the alkali or impurities are discharged into the alkali collection tank or the impurity collection tank through the elastic hose 706, thus avoiding resource waste.

[0040] Example 4:

[0041] As attached Figure 5 As shown, this embodiment is basically the same as the previous embodiment, except that the vibration mechanism 9 includes a support plate 901 fixedly connected to the right side of the desulfurization box 1, a second drive motor 902 fixedly installed on the rear side of the support plate 901, the output end of the second drive motor 902 extending to the front side of the support plate 901 and fixedly connected to a turntable 903, a mating rod 904 rotatably connected to the front side of the support plate 901, a rectangular long rod 905 fixedly connected to the mating rod 904, a second sliding groove 906 opened on the outer surface of the rectangular long rod 905, the vibration mechanism 9 also includes a fixed column 907 eccentrically set on the front side of the turntable 903, the fixed column 907 sliding in the second sliding groove 906, a fan-shaped toothed plate 908 fixedly connected to the bottom of the rectangular long rod 905, a T-shaped rack 909 meshing with the fan-shaped toothed plate 908, the T-shaped rack 909 sliding with the support plate 901, and a contact block 910 fixedly connected to the left side of the T-shaped rack 909.

[0042] From above, in the natural gas desulfurization process, the vibration mechanism 9 runs through the whole process of desulfurization, the driving motor two 902 is opened, the driving motor two 902 drives the rotating disc 903 to rotate, the cooperation of the fixed column 907 and the cooperation rod 904 makes the rectangular long rod 905 swing back and forth, drives the meshed T-shaped rack 909 to move horizontally back and forth, thereby through the constant collision of the contact block 910 and the desulfurization tank 1, the desulfurization tank 1 is vibrated at high frequency, so that the fixed filter plate 4 and the movable filter plate 5 are vibrated, and the impurities are prevented from being blocked.

[0043] The embodiments of the utility model are given for example and description, although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as the limitation of the utility model, and the ordinary skilled person in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A multi-stage pressure relief natural gas desulfurization filter separation device, characterized in that, Include: Desulfurization tank (1), the front and back sides are grounded through support legs (101), and a chute one (102) is opened on the right side; The inlet pipe (2) is communicated at one end in the right side of the desulfurization tank (1), and the other end is communicated with the external desulfurization natural gas pipeline; The spray unit (3) is arranged on the top of the desulfurization tank (1), and is used for uniformly spraying the alkali solution into the desulfurization tank (1); The fixed filter plate (4) and the movable filter plate (5) are arranged in the desulfurization tank (1), the fixed filter plate (4) is three groups, and the adjacent opposite inclined directions are staggered and welded on the inner wall of the desulfurization tank (1), the movable filter plate (5) is slid in the desulfurization tank (1) through the chute one (102); The connecting plate (6) is provided with two groups, and is fixedly connected on the left and right sides of the desulfurization tank (1); The recovery unit (7) is arranged between the two groups of connecting plates (6), and is used for collecting and guiding the unreacted alkali solution and the solid particles generated by the desulfurization reaction; The cylinder (8) is fixedly installed on the top of the left connecting plate (6) through the mounting seat, and the piston rod is fixed on one side of the movable filter plate (5); The vibration mechanism (9) is arranged on the right side of the desulfurization tank (1), and is used for vibrating the reaction particles on the top of the fixed filter plate (4) and the movable filter plate (5); The outlet pipe (10) is communicated at one end on the top of the desulfurization tank (1), and the other end is communicated with the external equipment through the natural gas pipeline.

2. A multi-stage pressure relief natural gas sweetening filter separation device according to claim 1, characterized in that, The spray unit (3) comprises: The bearing with seat (301) arranged on the top of the desulfurization tank (1); The bearing with seat (301) is fixedly connected with the desulfurization tank (1) through the support rod (302); The liquid outlet pipe (303) is communicated in the bearing with seat (301), and the liquid outlet pipe (303) extends to the inside of the desulfurization tank (1); The spray head (304) is communicated at one end of the liquid outlet pipe (303); The gear ring (305) is fixedly connected outside the liquid outlet pipe (303); The L-shaped mounting plate (306) is fixedly connected on the top of the desulfurization tank (1); The driving motor one (307) is fixedly installed on the top of the L-shaped mounting plate (306); The gear (308) is fixedly connected on the output end of the driving motor one (307), and the gear (308) is meshed with the gear ring (305).

3. The multi-stage pressure relief natural gas sweetening filter separation device according to claim 1, wherein, The recovery unit (7) comprises: The lead screw (701) is rotatably connected between the two groups of connecting plates (6); The fixed rod (702) is fixedly connected between the two groups of connecting plates (6), and the two groups of fixed rods (702) are symmetrically distributed on the front and back sides of the lead screw (701); The stepping motor (703) is fixedly installed on the outer surface of the left connecting plate (6), and the output end of the stepping motor (703) is fixed with one end of the lead screw (701); The two cavity blocks (704) are threadedly connected outside the lead screw (701), and the cavity blocks (704) slide outside the two fixed rods (702); The top of the cavity block (704) is communicated with the discharging pipe (705), and the upper end opening of the discharging pipe (705) is matched with the outlet at the bottom of the desulfurization tank (1). The bottom of the cavity block (704) is communicated with elastic hoses (706), and the two elastic hoses (706) are respectively communicated with lye collecting tanks and impurity collecting tanks away from the cavity block (704).

4. The multi-stage pressure relief natural gas sweetening filter separation device of claim 1, wherein, The vibration mechanism (9) comprises: The bearing plate (901) is fixedly connected to the right side of the desulfurization tank (1); The driving motor two (902) is fixedly installed on the rear side of the bearing plate (901); The output end of the driving motor two (902) extends to the front side of the bearing plate (901), and the rotating disc (903) is fixedly connected; The matching rod (904) is rotatably connected to the front side of the bearing plate (901); The rectangular long rod (905) is fixedly connected to the matching rod (904); The sliding groove two (906) is formed in the outer surface of the rectangular long rod (905).

5. A multi-stage pressure relief natural gas sweetening filter separation device as claimed in claim 4, wherein, The vibration mechanism (9) further comprises: The fixed column (907) is eccentrically arranged on the front side of the rotating disc (903), and the fixed column (907) slides in the sliding groove two (906); The fan-shaped toothed plate (908) is fixedly connected to the bottom of the rectangular long rod (905); The T-shaped gear rack (909) is in meshing connection with the fan-shaped toothed plate (908), and the T-shaped gear rack (909) slides with the bearing plate (901); The contact block (910) is fixedly connected to the left side of the T-shaped gear rack (909).

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