Monitoring equipment for walking-beam-free coalbed methane air exhauster

Abstract

The utility model discloses monitoring equipment for a walking-beam-free coalbed methane air exhauster, which comprises a control seat, an outer support cylinder, an inner support and a positioning insertion rod, the two sides of the control seat are provided with assembly parts through fasteners, and the outer support cylinder is hinged in the side part of each assembly part. Through the arrangement of the outer supporting cylinders hinged to the two sides of the control base and the foot supports hinged to the inner support, self-adaptive stable placement can be achieved according to the road condition of a placement site, the whole device can be stably supported at a designated position, stability is provided for embedding a sensing cable under the ground for real-time detection, and the detection efficiency is improved. Local assembly and carrying are facilitated through cooperation of a fastener and an assembly part, the insertion state of a positioning insertion rod and a clamping groove can be adjusted and controlled through arrangement and cooperative use of a lifting rod, a reset spring, a limiting block, the clamping groove, the positioning insertion rod and a positioning hole, and the inner support is controlled to stretch out and draw back so that the use length can be conveniently adjusted; and the adjustability of the stable supporting structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas field development in industrial and mining enterprises, and particularly relates to a monitoring device for a beamless coalbed methane air pump. Background Technique

[0002] The pumping unit is a pumping device widely used in the development of various oil and gas fields. After years of development, its product serialization, standardization and generalization levels are relatively high, and it can basically meet the needs of oil fields. However, the exploitation of coalbed methane has just started and has not yet formed its own system. The drainage equipment transplanted from the pumping equipment mainly relies on the experience in oil production in terms of the selection method. At present, more than 2,600 coalbed methane wells have been drilled in China, and more than 1,000 wells have been put into drainage, all using equipment such as pumping units, sucker rods, pumping rods and sucker pumps commonly used in the exploitation of conventional oil and gas. With the advent of the large-scale development of coalbed methane in China, a large number of drainage problems have emerged one after another. The current drainage equipment can no longer meet the drainage requirements under some special geological and engineering conditions, seriously affecting the output of coalbed methane wells. At present, there is no special drainage equipment suitable for the exploitation of coalbed methane in China.

[0003] In the control system of the beamless coalbed methane air pump disclosed in the Chinese utility model patent application publication specification CN201763299U, a programmable logic controller PLC is used as the main control unit, a switched reluctance motor and its controller are used as the drive source, a flow sensor and a pressure sensor are used as the detection unit, and a touch screen is used as the human-computer interaction interface, and the corresponding control program is compiled to form the control system of the beamless coalbed methane air pump. This control system can monitor various states underground in real time, is convenient for control, and can fully meet the special requirements of coalbed methane exploitation. However, the adjustability of the support device and the stability device adapted to the monitoring device for the beamless coalbed methane air pump is weak, resulting in weak practicability and insufficient high convenience in use, and urgent development is needed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a monitoring device for a beamless coalbed methane air pump to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A monitoring device for a beamless coalbed methane air pump, including a control base, an outer support cylinder, an inner support and a positioning plug. Both sides of the control base are assembled with fittings through fasteners. An outer support cylinder is hinged inside the side part of the fitting. The cooperation between the fastener and the fitting facilitates the detachment of the fitting and the outer support cylinder;

[0006] A connecting cylinder is fixed to the end side of the outer support cylinder. An inner support is arranged inside the outer support cylinder. One end of the inner support is hinged with a footrest. A limiting block is arranged inside the connecting cylinder. A lifting rod and a positioning insertion rod are respectively connected to both sides of the limiting block. The sliding of the limiting block inside the connecting cylinder can control the insertion state of the positioning insertion rod with the positioning hole and the clamping groove.

[0007] One end of the lifting rod extends outside the connecting cylinder. A return spring is sleeved at the connection part of the lifting rod and the inside of the connecting cylinder. Positioning holes matching the positioning insertion rod are connected at equal intervals inside the inner support. A clamping groove matching the positioning insertion rod is connected to one side inside the outer support cylinder.

[0008] Preferably, a sensing cable is connected to the bottom of the control seat. The inside of the control seat includes a pressure sensor and a flow sensor as detection units.

[0009] Preferably, a fixed cylinder is connected to the top of the control seat. A lifting cylinder is arranged inside the fixed cylinder. Guide wheels are respectively connected to the bottoms of both sides of the lifting cylinder. Guide grooves matching the guide wheels are respectively connected to both sides inside the fixed cylinder. The sliding of the guide wheels along the guide grooves can limit and assist the lifting cylinder to move linearly up and down along the screw rod.

[0010] Preferably, a screw rod is connected inside the lifting cylinder. One end of the screw rod is connected with a first transmission rod. A toothed disc is sleeved outside the first transmission rod. A bevel gear is meshed with one side at the top of the toothed disc. A second transmission rod is connected inside the bevel gear. The second transmission rod extends outside one side of the fixed cylinder and is connected with an operating handle.

[0011] Preferably, a placing table is fixed to the top of the lifting cylinder through a stabilizing frame. A wiring operation port is connected inside the middle of the placing table. The wiring operation port facilitates the connection of the cable line between the monitoring device body and the control seat.

[0012] Preferably, a protective cover is arranged on the top of the placing table. The monitoring device body is placed inside the protective cover on the top of the placing table.

[0013] Preferably, two guide holes are symmetrically connected inside both sides of the placing table. Two guide rods matching the guide holes are symmetrically connected inside both sides of the bottom of the protective cover, so as to facilitate the removal of the protective cover from the top range of the placing table and facilitate the maintenance of the monitoring device body inside the protective cover.

[0014] Preferably, avoidance openings are connected to both inner sides of the protective cover. Buffer blocks are arranged in the avoidance openings. Buffer contact plates are connected to both sides of the buffer blocks. The inner surfaces of the top and bottom of the buffer contact plates are connected to the inner and outer surfaces of the protective cover through elastic connectors connected at equal intervals. Limit sliding grooves are connected to both the top and bottom inside the buffer blocks. Limit sliding blocks matching the limit sliding grooves are connected to both the top and bottom in the avoidance openings.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] (1) For this monitoring device for a beamless coalbed methane pump, through the settings of the outer support cylinders hinged to both sides of the control seat and the footrests hinged to the inner brackets, it can be stably placed adaptively according to the road conditions of the placement site, improving the overall stability of the device to be stably supported at the designated position, providing stability for the buried sensing cable for real-time detection underground. The local assembly and carrying are convenient through the cooperation of fasteners and fittings. Among them, through the settings and cooperative use of the lifting rod, return spring, limit block, card slot, positioning insertion rod, and positioning hole, the insertion state of the positioning insertion rod and the card slot can be adjusted to control the telescopic length of the inner bracket to facilitate the adjustment of the length for use, improving the adjustability of the stable support structure;

[0017] (2) For this monitoring device for a beamless coalbed methane pump, through the settings of the screw rod, toothed disc, first transmission rod, bevel gear, second transmission rod, operating handle, and lifting cylinder, and with the guiding effect of the guiding wheel sliding along the guiding groove, the lifting cylinder can be limited to move linearly up and down along the screw rod to adjust the use height of the placement table, improving the practicability and convenient usability;

[0018] (3) For this monitoring device for a beamless coalbed methane pump, through the settings and cooperative use of the guide rod and guide hole, the monitoring device body can be stably placed within the range of the top of the placement table and inside the protective cover, facilitating the subsequent work of taking and placing it. Among them, by using the elastic connection of the elastic connector and the guiding effect of the limit sliding block sliding along the limit sliding groove, the buffer block can be assisted to move back and forth in the avoidance opening repeatedly, enabling the buffer contact plate to absorb the impact force from outside the protective cover, playing a role in protecting the monitoring device body placed inside the protective cover, and improving the protective effect on the monitoring device body when the monitoring device body is not in use. Description of the Drawings

[0019] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0020] Figure 2 It is the Figure 1 enlarged structural schematic diagram at A in the present utility model;

[0021] Figure 3 It is the Figure 1Schematic diagram of the enlarged structure at B in the [device];

[0022] Figure 4 Schematic diagram of the connection structure between the outer support cylinder and the inner support of the present utility model;

[0023] Figure 5 Schematic top view of the connection structure between the protective cover, the placement table, and the buffer contact plate of the present utility model.

[0024] In the figure: 1. Control seat; 2. Protective cover; 3. Buffer block; 4. Monitoring device body; 5. Wiring operation port; 6. Placement table; 7. Stabilizing frame; 8. Lifting cylinder; 9. Fixed cylinder; 10. Outer support cylinder; 11. Fastener; 12. Fitting; 13. Sensing cable; 14. Connecting cylinder; 15. Inner support; 16. Footrest; 17. Guide wheel; 18. Guide groove; 19. Screw; 20. Operating handle; 21. Toothed disc; 22. First transmission rod; 23. Bevel gear; 24. Second transmission rod; 25. Limit slider; 26. Limit chute; 27. Elastic connecting piece; 28. Buffer contact plate; 29. Avoidance opening; 30. Guide hole; 31. Guide rod; 32. Positioning hole; 33. Lifting rod; 34. Return spring; 35. Limit block; 36. Card slot; 37. Positioning insertion rod. Detailed implementation manner

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1-5 , an embodiment provided by the present utility model: A monitoring device for a beamless coalbed methane pump includes a control seat 1, an outer support cylinder 10, an inner support 15, and a positioning insertion rod 37. Fittings 12 are assembled on both sides of the control seat 1 through fasteners 11. The cooperation between the fasteners 11 and the fittings 12 facilitates local assembly and carrying;

[0027] The outer support cylinder 10 is hinged inside the side of the fitting 12. A connecting cylinder 14 is fixed to the end side of the outer support cylinder 10. An inner support 15 is arranged inside the outer support cylinder 10. One end of the inner support 15 is hinged with a footrest 16. The outer support cylinders 10 hinged to both sides of the control seat 1 and the footrests 16 hinged to the inner support 15 are provided to achieve adaptive and stable placement according to the road conditions of the placement site, improving the overall stability of the device to be stably supported at the designated position;

[0028] A limiting block 35 is provided inside the connecting cylinder 14. A lifting rod 33 and a positioning insertion rod 37 are respectively connected to both sides of the limiting block 35. One end of the lifting rod 33 extends outside the connecting cylinder 14. A return spring 34 is sleeved at the connection between the lifting rod 33 and the inside of the connecting cylinder 14. Positioning holes 32 matching the positioning insertion rod 37 are equidistantly connected inside the inner support 15. A clamping groove 36 matching the positioning insertion rod 37 is connected inside one side of the outer support cylinder 10. Through the setting and coordinated use of the lifting rod 33, the return spring 34, the limiting block 35, the clamping groove 36, the positioning insertion rod 37 and the positioning holes 32, the insertion state of the positioning insertion rod 37 and the clamping groove 36 can be adjusted to control the telescopic movement of the inner support 15 to facilitate the adjustment of the length for use.

[0029] A sensing cable 13 is connected to the bottom of the control seat 1. The control seat 1 includes a pressure sensor and a flow sensor as detection units.

[0030] A fixed cylinder 9 is connected to the top of the control seat 1. A lifting cylinder 8 is provided inside the fixed cylinder 9. Guide wheels 17 are connected to the bottoms of both sides of the lifting cylinder 8. Guide grooves 18 matching the guide wheels 17 are connected to both sides inside the fixed cylinder 9.

[0031] A screw rod 19 is connected inside the lifting cylinder 8. One end of the screw rod 19 is connected to a first transmission rod 22. A toothed disk 21 is sleeved outside the first transmission rod 22. A bevel gear 23 is engaged with one side of the top of the toothed disk 21. A second transmission rod 24 is connected inside the bevel gear 23. The second transmission rod 24 extends outside one side of the fixed cylinder 9 and is connected to an operating handle 20. The setting of the screw rod 19, the toothed disk 21, the first transmission rod 22, the bevel gear 23, the second transmission rod 24, the operating handle 20 and the lifting cylinder 8 and the guiding effect of the guide wheels 17 sliding along the guide grooves 18 can limit and assist the lifting cylinder 8 to move up and down linearly along the screw rod 19 to adjust the use height of the placement table 6.

[0032] The top of the lifting cylinder 8 is fixed with a placement table 6 through a stabilizing frame 7. A wiring operation port 5 is connected inside the middle of the placement table 6.

[0033] A protective cover 2 is provided on the top of the placement table 6. A monitoring device body 4 is placed on the top of the placement table 6 and inside the protective cover 2.

[0034] Two guide holes 30 are symmetrically connected inside both sides of the placement table 6. Two guide rods 31 matching the guide holes 30 are symmetrically connected inside both sides of the bottom of the protective cover 2. The setting and coordinated use of the guide rods 31 and the guide holes 30 can stably place the monitoring device body 4 within the range of the top of the placement table 6 and inside the protective cover 2, facilitating subsequent taking and placing operations on it.

[0035] On both inner sides of the protective cover 2, avoidance openings 29 are connected. A buffer block 3 is arranged in the avoidance opening 29. On both sides of the buffer block 3, buffer contact plates 28 are connected. The inner surfaces of the top and bottom of the buffer contact plate 28 are connected to the inner and outer surfaces of the protective cover 2 through elastic connectors 27 connected at equal intervals. By utilizing the elastic connection of the elastic connectors 27 and the guiding effect of the limiting slider 25 sliding along the limiting chute 26, the buffer block 3 can be assisted to repeatedly move back and forth in the avoidance opening 29, so that the buffer contact plate 28 can absorb the impact force from the outside of the protective cover 2, playing a role in protecting the monitoring device body 4 placed inside the protective cover 2;

[0036] On both the top and bottom inner sides of the buffer block 3, limiting chutes 26 are connected. On both the top and bottom in the avoidance opening 29, limiting sliders 25 matching the limiting chutes 26 are connected.

[0037] When the embodiment of the present application is in use: the outer support cylinders 10 hinged to both sides of the control seat 1 and the footrests 16 hinged to the inner brackets 15 are provided, realizing stable placement adaptively according to the road conditions of the placement site, improving the overall stability of the device to be stably supported at the designated position, providing stability for the buried underground of the sensing cable 13 for real-time detection. Through the setting and cooperative use of the lifting rod 33, the return spring 34, the limiting block 35, the card slot 36, the positioning insertion rod 37 and the positioning hole 32, the plugging state of the positioning insertion rod 37 and the card slot 36 can be adjusted, used to control the telescopic length of the inner bracket 15 for convenient adjustment. The setting of the screw 19, the toothed disc 21, the first transmission rod 22, the bevel gear 23, the second transmission rod 24, the operating handle 20 and the lifting cylinder 8 and the guiding effect of the guiding wheel 17 sliding along the guiding groove 18 can limit and assist the lifting cylinder 8 to move linearly up and down along the screw 19, used to adjust the use height of the placement table 6.

[0038] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A monitoring device for a beamless coalbed methane pump, characterized in that: The invention comprises a control seat (1), an outer support tube (10), an inner support (15) and a positioning rod (37), wherein both sides of the control seat (1) are equipped with assembly parts (12) through fasteners (11), the outer support tube (10) is hingedly connected to the side of the assembly part (12), the end side of the outer support tube (10) is fixed with a connecting tube (14), the inner support (15) is arranged in the outer support tube (10), one end of the inner support (15) is hingedly connected to a foot support (16), and the connecting tube (14) is provided with a limit block ( 35), the two sides of the limit block (35) are respectively connected with a lifting rod (33) and a positioning rod (37), one end of the lifting rod (33) extends outside the connecting tube (14), a return spring (34) is sleeved at the connection between the lifting rod (33) and the connecting tube (14), the interior of the inner bracket (15) is connected with positioning holes (32) matching the positioning rod (37) at equal intervals, and one side of the outer support tube (10) is connected with a slot (36) matching the positioning rod (37).

2. The monitoring device for a beamless coalbed methane pump according to claim 1 is characterized in that: The bottom of the control seat (1) is connected to a sensor cable (13), and the control seat (1) includes a pressure sensor and a flow sensor as detection units.

3. The monitoring device for a beamless coalbed methane pump according to claim 2 is characterized in that: The top of the control seat (1) is connected to a fixed cylinder (9), a lifting cylinder (8) is arranged inside the fixed cylinder (9), the bottoms of both sides of the lifting cylinder (8) are connected to guide wheels (17), and both sides of the interior of the fixed cylinder (9) are connected to guide grooves (18) matching the guide wheels (17).

4. The monitoring device for a beamless coalbed methane pump according to claim 3 is characterized in that: The lifting cylinder (8) is internally connected with a screw rod (19), one end of the screw rod (19) is connected with a first transmission rod (22), the first transmission rod (22) is externally sleeved with a toothed disk (21), one side of the top of the toothed disk (21) is toothed with a bevel tooth (23), the bevel tooth (23) is internally connected with a second transmission rod (24), the second transmission rod (24) extends to the outside of one side of the fixed cylinder (9) and is connected with an operating handle (20).

5. The monitoring device for a beamless coalbed methane pump according to claim 4 is characterized in that: A placement platform (6) is fixed to the top of the lifting cylinder (8) via a stabilizing frame (7), and a wiring operation port (5) is connected to the middle of the placement platform (6).

6. The monitoring device for a beamless coalbed methane pump according to claim 5 is characterized in that: A protective cover (2) is provided on the top of the placement platform (6), and a monitoring device body (4) is placed on the top of the placement platform (6) and inside the protective cover (2).

7. The monitoring device for a beamless coalbed methane pump according to claim 6 is characterized in that: Two guide holes (30) are symmetrically connected on both sides of the placement platform (6), and two guide rods (31) matching the guide holes (30) are symmetrically connected on both sides of the bottom of the protective cover (2).

8. The monitoring device for a beamless coalbed methane pump according to claim 6 is characterized in that: Both sides of the protective cover (2) are connected with avoidance openings (29), and a buffer block (3) is arranged in the avoidance opening (29). Both sides of the buffer block (3) are connected with buffer contact plates (28), and the inner surfaces of the top and bottom of the buffer contact plates (28) are connected to the inner and outer surfaces of the protective cover (2) through elastic connectors (27) connected at equal intervals. The top and bottom of the buffer block (3) are connected with limit slide grooves (26), and the top and bottom of the avoidance opening (29) are connected with limit sliders (25) matching the limit slide grooves (26).

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