Wellhead desulfurization device for natural gas well

Abstract

The utility model relates to a natural gas well mouth desulfurization device, and belongs to the technical field of natural gas desulfurization. Comprising a base, a shell and stuffing boxes, the shell is fixedly connected to the base, quick connectors are arranged at the two ends of the shell, the multiple stuffing boxes are distributed below the shell in an array mode, the lower ends of the stuffing boxes are rotationally connected with the shell, connecting grooves are formed in the upper ends of the stuffing boxes, and fixing plates are arranged on the two sides in the shell; a cover plate is fixedly connected to the upper end of the fixing plate through screws, a plurality of rotating shafts corresponding to the stuffing boxes are rotationally connected to the cover plate, and connecting blocks matched with the connecting grooves are arranged at the lower ends of the rotating shafts. According to the utility model, the stuffing box is rotationally arranged in the shell, and the rotating shaft corresponding to the stuffing box is arranged on the cover plate, so that the previous gradually saturated stuffing box can be rotated after desulfurization for a period of time, the subsequent stuffing box can play a role in desulfurization, the operation is simple and convenient, and the desulfurization efficiency is effectively ensured.

Description

Technical Field

[0001] This utility model relates to a natural gas wellhead desulfurization device, belonging to the field of natural gas desulfurization technology. Background Technology

[0002] Natural gas is a naturally formed gaseous fossil fuel. During the natural gas extraction process, desulfurization is required. Wellhead desulfurization is an important purification step in the natural gas extraction process. Its main purpose is to remove hydrogen sulfide from the natural gas to meet environmental protection requirements and the needs of subsequent processing and transportation.

[0003] A search revealed that publication number CN206396139U relates to a natural gas wellhead desulfurization device, comprising a shell and packing. The raw natural gas entering the shell is filtered by the packing and then discharged outside the shell. A skid is located at the bottom of the shell, and an inlet and an outlet are located at both ends of the shell, respectively. Quick-connect fittings for connecting high-pressure hoses are provided at the inlet and outlet. The packing is encapsulated in a packing box, which is inserted into a slot inside the shell from above and fixed to the shell with bolts. The packing box structure includes a frame and a mesh plate, which together constitute the box structure of the packing box. The cross-section of the shell is an inverted trapezoid, and the shape formed by the frame of the packing box is also an inverted trapezoid. This utility model adopts a skid-mounted design, allowing for deployment and retrieval at any time according to usage needs, providing good mobility.

[0004] However, during the use of this patent, the position of the packing box needs to be changed manually, which increases labor costs, interrupts the desulfurization process, and affects desulfurization efficiency. Utility Model Content

[0005] The technical problem this invention aims to solve is that existing natural gas wellhead desulfurization devices require manual replacement of the packing box during use, which increases labor costs, interrupts the desulfurization process, and affects desulfurization efficiency.

[0006] To address the aforementioned problems, this utility model provides a natural gas wellhead desulfurization device, comprising a base, a housing, and a packing box. The housing is fixedly connected to the base and has quick-connect couplings at both ends. A plurality of packing boxes are arrayed below the housing, with the lower end of each packing box rotatably connected to the housing. The upper end of each packing box has a connecting groove. Fixing plates are provided on both sides inside the housing. A cover plate is fixedly connected to the upper end of the fixing plate by screws. A plurality of rotating shafts corresponding to the packing boxes are rotatably connected to the cover plate. The lower end of each rotating shaft has a connecting block adapted to the connecting groove.

[0007] Furthermore: the side of the fixing plate is provided with a silicone pad, and the two fit together when the packing box is rotated to align with the corresponding fixing plate.

[0008] Furthermore, the side of the housing is provided with several concentration sensors corresponding to the positions of the packing box.

[0009] Furthermore, a monitoring screen electrically connected to the concentration sensor is provided on the outside of the housing.

[0010] Furthermore, the lower end of the housing is provided with several insertion shafts, and the stuffing box is rotatably connected to the insertion shafts through slots provided at the lower end.

[0011] Furthermore, the upper end of the rotating shaft is provided with a strip-shaped handle.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] This patent rotatably houses the stuffing box within the housing, and by setting a rotating shaft on the cover plate corresponding to the stuffing box, it is possible to rotate the stuffing box that has gradually become saturated after a period of desulfurization, so that the stuffing box behind can play its desulfurization role. The operation is simple and convenient, and effectively ensures the desulfurization efficiency. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a structural diagram of a natural gas wellhead desulfurization device according to the present invention.

[0016] Figure 2 This is an exploded cross-sectional view of a natural gas wellhead desulfurization device according to the present invention.

[0017] Figure 3 This is a cross-sectional view of a natural gas wellhead desulfurization device according to the present invention.

[0018] Figure 4 This is an exploded view of the cover plate of a natural gas wellhead desulfurization device according to this utility model.

[0019] In the attached image:

[0020] 1. Base; 2. Housing; 21. Fixing plate; 22. Concentration sensor; 23. Monitoring screen; 24. Insert shaft; 3. Packing box; 31. Connecting groove; 4. Cover plate; 41. Rotating shaft; 42. Connecting block; 43. Strip handle. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Combined with appendix Figure 1-4 This utility model provides a natural gas wellhead desulfurization device, including a base 1, a housing 2, and a packing box 3. The housing 2 is fixedly connected to the base 1 and has quick connectors at both ends. Several packing boxes 3 are arrayed below the housing 2. Several insert shafts 24 are provided at the lower end of the housing 2. The packing boxes 3 are rotatably connected to the insert shafts 24 through slots provided at the lower end. The upper end of the packing box 3 is provided with a connecting groove 31. Fixing plates 21 are provided on both sides inside the housing 2. Silicone pads are provided on the sides of the fixing plates 21. When the packing box 3 is rotated to align with the corresponding fixing plate 21, the two are in contact. A cover plate 4 is fixedly connected to the upper end of the fixing plate 21 by screws. Several rotating shafts 41 corresponding to the packing boxes 3 are rotatably connected to the cover plate 4. The rotating shafts 41 are connected to the bottom of the cover plate 21. The end is provided with a connecting block 42 that is compatible with the connecting groove 31, so that the connecting block 42 can be engaged with the connecting groove 31. The upper end of the rotating shaft 41 is provided with a strip handle 43. Before use, the lower end of the stuffing box 3 is inserted into the insert shaft 24, and the cover plate 4 is fixed to the housing 2 with screws. After desulfurization for a period of time, the rotating shaft 41 above the stuffing box 3 near the connecting gas outlet can be rotated by the strip handle 43 to make it parallel to the angle of the housing 2, so that the subsequent stuffing box 3 can play its role and ensure desulfurization efficiency. As time goes by, the subsequent stuffing boxes 3 are rotated in sequence so that the subsequent stuffing box 3 perpendicular to the angle of the housing 2 can play its desulfurization role. The operation is simple and convenient and effectively ensures the desulfurization efficiency.

[0023] Combined with appendix Figure 1-4 The side of the housing 2 is provided with several concentration sensors 22 corresponding to the positions of the packing box 3. The outer side of the housing 2 is provided with a monitoring screen 23 that is electrically connected to the concentration sensors 22. Through the concentration sensors 22, the hydrogen sulfide at the corresponding position of the packing box 3 can be monitored in real time. When the operator finds that the concentration has reached the threshold through the monitoring screen 23, he can rotate the bar handle 43 to adjust the angle of the packing box 3.

[0024] The working principle of this application is as follows:

[0025] Before use, insert the lower end of the packing box 3 into the insert shaft 24, and fix the cover plate 4 to the housing 2 with screws. After a period of desulfurization, the rotating shaft 41 above the packing box 3 near the gas inlet can be rotated by the bar handle 43 to make it parallel to the angle of the housing 2, so that the packing box 3 behind can play its role and ensure desulfurization efficiency. As time goes by, the packing boxes behind can be rotated in sequence so that the packing box 3 with the angle perpendicular to the housing 2 can play its desulfurization role. The operation is simple and convenient and effectively ensures the desulfurization efficiency. During use, the concentration sensor 22 can monitor the hydrogen sulfide at the corresponding position of the packing box 3 in real time. When the operator finds that the concentration reaches the threshold through the monitoring screen 23, the bar handle 43 can be rotated to adjust the angle of the packing box 3.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A natural gas wellhead desulfurization device, comprising a base (1), a shell (2), and a packing box (3), wherein the shell (2) is fixedly connected to the base (1) and has quick connectors at both ends, and a plurality of packing boxes (3) are arrayed below the shell (2), characterized in that: The lower end of the stuffing box (3) is rotatably connected to the shell (2). The upper end of the stuffing box (3) is provided with a connecting groove (31). The inner sides of the shell (2) are provided with fixing plates (21). The upper end of the fixing plate (21) is fixedly connected with a cover plate (4) by screws. Several rotating shafts (41) corresponding to the stuffing box (3) are rotatably connected on the cover plate (4). The lower end of the rotating shaft (41) is provided with a connecting block (42) that is compatible with the connecting groove (31).

2. The natural gas wellhead desulfurization device according to claim 1, characterized in that: The side of the fixing plate (21) is provided with a silicone pad, and the filling box (3) is rotated to align with the corresponding fixing plate (21) so that the two are in contact.

3. The natural gas wellhead desulfurization device according to claim 2, characterized in that: The side of the housing (2) is provided with several concentration sensors (22) corresponding to the positions of the packing box (3).

4. A natural gas wellhead desulfurization device according to claim 3, characterized in that: The outer side of the housing (2) is provided with a monitoring screen (23) that is electrically connected to the concentration sensor (22).

5. A natural gas wellhead desulfurization device according to claim 4, characterized in that: The lower end of the housing (2) is provided with several insert shafts (24), and the stuffing box (3) is rotatably connected to the insert shafts (24) through the slots provided at the lower end.

6. A natural gas wellhead desulfurization device according to claim 1, characterized in that: The upper end of the rotating shaft (41) is provided with a strip-shaped handle (43).

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