CN221198766U - Pump pressure monitoring device of slurry pump - Google Patents

Pump pressure monitoring device of slurry pump Download PDF

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Publication number
CN221198766U
CN221198766U CN202323119752.3U CN202323119752U CN221198766U CN 221198766 U CN221198766 U CN 221198766U CN 202323119752 U CN202323119752 U CN 202323119752U CN 221198766 U CN221198766 U CN 221198766U
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pressure
oil
oil pipe
elbow
pipe
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CN202323119752.3U
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Inventor
刘晓华
段威
徐永胜
龙能清
熊观
黄健
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Sichuan Comprehensive Geological Survey And Research Institute
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Sichuan Comprehensive Geological Survey And Research Institute
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Abstract

The utility model relates to the technical field of drilling, and discloses a mud pump pressure monitoring device, which comprises an external component, wherein the external component comprises: the outer wall of the slurry pipe is provided with an elbow, and the elbow is L-shaped; the gate valve is arranged at the top of the elbow and is fixedly connected with the elbow; the external component is connected with an internal component, and the internal component comprises: the oil pipe is fixedly connected to the top of the gate valve and is in threaded connection with the gate valve; the oil-water separator is fixedly connected to the top of the oil pipe; the hydraulic pressure measuring device also comprises a piston, a telescopic pressure guide oil pipe and a pressure measuring instrument. The pressure gauge can be replaced at any time according to the pressure in the well and the pump pressure, the pump is low, the pressure gauge is high in accuracy, the pressure gauge is high in pressure, and the effect of accurately monitoring the pump pressure by adapting the pump pressure is achieved. The utility model has the characteristics of simple structure, convenient operation, practicality and durability, and is suitable for monitoring the pumping pressure of the slurry pump.

Description

Pump pressure monitoring device of slurry pump
Technical Field
The utility model relates to the technical field of drilling, in particular to a pumping pressure monitoring device of a slurry pump.
Background
The geothermal well drilling is used for geothermal steam and geothermal water, is a means necessary for exploration and exploitation of geothermal fluid, plays an important role in geological structure and geothermal resource research, and can be used for knowing interfaces among different rock layers, movement of magma and the like so as to further know the structure inside the earth. Monitoring the pumping pressure of a slurry pump is one of important means for ensuring that geothermal drilling operation is smoothly carried out, a pressure gauge which is arranged in a factory of a traditional slurry pump pressure measuring method is close to a slurry pipe, the slurry pipe is far away from driller operators, and the pumping pressure is inconvenient to observe and is not intuitive; the traditional pressure measuring method of the slurry pump realizes pressure display by swelling rubber in the pressure gauge, and if the pump pressure is smaller, the rubber of the pressure gauge cannot be swelled, and the pressure gauge cannot display.
The utility model discloses a pumping pressure monitor for drilling, which comprises a protective shell, wherein a shock pad is fixedly connected to the inner side of the protective shell, a monitor body is fixedly arranged on the inner side of the shock pad, and particularly the pumping pressure monitor for drilling is provided.
The utility model has simple operation, convenient use and good damping effect. Because the pressure gauge of the traditional slurry pump pressure measuring method is arranged close to the slurry pipe in a factory, the slurry pipe is far away from driller operators, and the observation of the pump pressure is inconvenient and not intuitive; the traditional pressure measuring method of the slurry pump realizes pressure display by swelling rubber in the pressure gauge, and if the pump pressure is smaller, the rubber of the pressure gauge cannot be swelled, and the pressure gauge cannot display. Based on this, we propose a mud pump pressure monitoring device.
Disclosure of utility model
(One) solving the technical problems
Aiming at the defects of the prior art, the utility model provides a slurry pump pressure monitoring device which has the advantage of accurate pump pressure measurement and solves the problem of inaccurate pressure measurement of the traditional pump pressure measuring method.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions: a mud pump pressure monitoring apparatus comprising an external assembly comprising:
the outer wall of the slurry pipe is provided with an elbow, and the elbow is L-shaped;
The gate valve is arranged at the top of the elbow and is fixedly connected with the elbow;
The external component is connected with an internal component, and the internal component comprises:
The oil pipe is fixedly connected to the top of the gate valve and is in threaded connection with the gate valve;
The oil-water separator is fixedly connected to the top of the oil pipe;
The piston is arranged in the oil-water separator;
The telescopic pressure guide oil pipe is connected to the outer wall of the oil-water separator;
And the pressure measuring instrument is arranged at the bottom of the telescopic pressure guiding oil pipe.
Preferably, the pressure gauge is in threaded connection with the telescopic pressure guide oil pipe.
Preferably, the telescopic pressure guide oil pipe is connected with the oil-water separator through a connecting cylinder.
Preferably, an exhaust valve is arranged at the top of the oil-water separator, and the exhaust valve can be opened to discharge gas in the oil-water separator.
Preferably, an oil pipe plug is arranged at the bottom of the piston, and the oil pipe plug is attached to the oil pipe.
Preferably, the telescopic pressure guide oil pipe stretches horizontally and vertically.
Preferably, the diameter of the pipe orifice of the telescopic pressure guiding oil pipe is far smaller than that of the pipe orifice of the elbow.
Preferably, the outer walls of the telescopic guide pressure oil pipe and the oil-water separator are provided with rotating shafts, and telescopic support rods are arranged between the rotating shafts.
(III) beneficial effects
Compared with the prior art, the utility model provides a pumping pressure monitoring device of a slurry pump, which comprises the following components
The beneficial effects are that:
According to the utility model, the installation position of the pressure gauge can be adjusted according to the requirement, so that drillers can more conveniently and directly get closer to the pressure gauge when viewing the pressure data, and the personnel suffering from problems can react more quickly. Through having set up oil water isolator, mud extrusion piston, piston extrusion hydraulic oil, hydraulic oil is with the accurate oil-immersed antidetonation manometer that passes to of pressure, even very little pumping pressure or pumping pressure change, can both show on the manometer, be convenient for discern the assurance to the problem in the well, avoid taking place the unexpected accident. By arranging the oil-water separator, the slurry is not in direct contact with the pressure gauge, and the pressure gauge cannot be blocked. The pressure gauge can be replaced at any time according to the pressure in the well and the pump pressure, the pump pressure in the initial drilling stage is low, the small pressure gauge with high precision is used, the pump pressure in the later stage is high, and the large pressure gauge is replaced, so that the effect of accurately monitoring the pump pressure by adapting the pump pressure is achieved. The utility model has the characteristics of simple structure, convenient operation, practicality and durability, and is suitable for monitoring the pumping pressure of the slurry pump.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
Fig. 2 is a schematic structural view of the present utility model.
In the figure:
1. an external component; 11. a slurry pipe; 12. an elbow; 13. a gate valve;
2. An internal component; 21. an oil-water separator; 22. a piston; 23. an oil pipe; 231. an oil pipe plug; 24. telescoping the pressure guiding oil pipe; 25. a load cell; 26. an exhaust valve; 27. a fixed structure; 271. a rotating shaft; 272. supporting the telescopic rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1-2, a mud pump pressure monitoring apparatus includes an outer assembly 1, the outer assembly 1 comprising: the mud pipe 11, its outer wall is provided with elbow 12, elbow 12 is L type, gate valve 13, set up in the top of elbow 12 and with elbow 12 fixed connection, outer subassembly 1 is connected with inner subassembly 2, inner subassembly 2 includes: the oil pipe 23 is fixedly connected to the top of the gate valve 13 and is in threaded connection with the gate valve 13, the oil-water separator 21 is fixedly connected to the top of the oil pipe 23, the piston 22 is arranged in the oil-water separator 21, the telescopic pressure guide oil pipe 24 is connected to the outer wall of the oil-water separator 21, and the pressure measuring instrument 25 is arranged at the bottom of the telescopic pressure guide oil pipe 24. When in use, mud flows in along the mud pipe 11, then the mud is split at the elbow 12, at the moment, the gate valve 13 is in a closed state, when pressure monitoring is needed on the mud pipe 11, the gate valve 13 is opened, the mud enters the oil pipe 23 from the gate valve 13 and then enters the oil-water isolator 21, the mud can compress hydraulic oil against the piston 22 due to the blocking of the piston 22, the pressure is transmitted into the telescopic pressure guide oil pipe 24 at the moment, the tail part of the telescopic pressure guide oil pipe 24 is connected with the pressure gauge 25, the pressure gauge can measure the pressure inside the mud pipe 11 at the moment,
The pressure gauge 25 is in threaded connection with the telescopic pressure guide oil pipe 24. Since the pump pressure is small in the initial stage of drilling, a pressure measuring instrument 25 with a small measuring range and higher precision can be used for smaller pressure, and the pump pressure becomes higher in the middle and later stages of drilling, and a pressure measuring instrument 25 with a large measuring range is used for larger pressure, and the pressure measuring instrument 25 is replaced by removing the threaded connection of the pressure measuring instrument 25 and the telescopic pressure guide oil pipe 24, so that different pump pressures can be adapted.
The telescopic pressure guide oil pipe 24 is connected with the oil-water separator 21 through a connecting cylinder. The installation position of the pressure gauge 25 can be adjusted according to the requirement, drillers can get closer to the pressure gauge, more conveniently and directly watch the pressure data, and people with problems can react faster, and because the installation position sometimes needs to be bent and sometimes needs to be straight, the telescopic pressure guide oil pipe 24 can be replaced by removing the threaded connection between the oil-water separator 21 and the pressure gauge 25.
The top of the oil-water separator 21 is provided with an exhaust valve 26, and the exhaust valve 26 can be opened to discharge the gas inside the oil-water separator 21. When the telescopic pressure guide oil pipe 24 or the pressure measuring instrument 25 is replaced, air can enter the sealed inner assembly 2, at the moment, because the exhaust valve 26 is arranged at the top of the inner assembly 2, air can gather at the bottom of the exhaust valve 26, at the moment, the exhaust valve 26 is opened, air is released or more hydraulic oil is added to discharge the air, and the measuring accuracy of the pressure measuring instrument 25 is ensured.
The telescopic pilot oil pipe 24 can be telescopic in the horizontal and vertical directions. After determining whether the telescopic pressure guiding oil pipe 24 is a straight pipe or a bent pipe, the telescopic pressure guiding oil pipe 24 stretches and contracts, and adjusts to a proper length to adapt to the installation position.
The diameter of the pipe orifice of the telescopic pressure guiding oil pipe 24 is far smaller than that of the pipe orifice of the elbow 12. According to pascal's law, for two closed water cylinders that communicate, the pressure on any horizontal plane must be equal, so, produce in great elbow 12 inside change in the flexible pressure oil pipe 24 that leads of elbow 12 pipeline diameter that is less than this change can multiple and be amplified and measured by pressure gauge 25 and measuring result is more accurate, in pump opening and drilling, realize accurate judgement well condition through pumping pressure accurate monitoring, for example in the drilling process, lost circulation leads to liquid column pressure to reduce, the drilling rod has broken and has led to the pressure release, stratum blowout leads to phenomenon such as pressure boost can both accurately show, thereby reduce well accident.
Example two
Referring to fig. 1-2, the protection and support functions are added on the basis of the first embodiment.
An oil pipe plug 231 is arranged at the bottom of the piston 22, and the oil pipe plug 231 is attached to the oil pipe 23. When we need to overhaul oil water isolator 21, can demolish oil pipe 23 from gate valve 13, it gets into oil water isolator 21's bottom and oil pipe 23 to avoid the air at this moment, because the air is once getting into oil pipe 23 or oil water isolator 21 bottom, because the separation of piston 22, the air can be difficult to discharge and then influence the precision of pressure gauge 25, so before we install oil pipe 23, need open discharge valve 26, then with the complete stopper of oil plug pipe 231 in oil pipe 23, can install the equipment that finishes the overhaul again on gate valve 13 this moment, and at this moment, do not have the bottom that air got into oil pipe 23 and oil water isolator 21, the precision of device has been guaranteed not influenced.
The outer walls of the telescopic oil guide pipe 24 and the oil-water separator 21 are provided with rotating shafts 271, and telescopic supporting rods 272 are arranged between the rotating shafts 271. Because the telescopic oil guide 24 is arranged at one side of the oil-water separator 21, the telescopic oil guide 24 may be inclined or broken under the action of gravity, and based on this, a fixing structure 27 is arranged between the telescopic oil guide 24 and the oil-water separator 21, and effective support can be made through the rotating shaft 271 and the supporting rod 272.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A mud pump pressure monitoring device comprising an outer assembly (1), the outer assembly (1) comprising:
the outer wall of the slurry pipe (11) is provided with an elbow (12), and the elbow (12) is L-shaped;
The gate valve (13) is arranged at the top of the elbow (12) and is fixedly connected with the elbow (12);
The method is characterized in that: the outer assembly (1) is connected with an inner assembly (2), the inner assembly (2) comprising:
The oil pipe (23) is fixedly connected to the top of the gate valve (13) and is in threaded connection with the gate valve (13);
The oil-water separator (21) is fixedly connected to the top of the oil pipe (23);
a piston (22) provided inside the oil-water separator (21);
A telescopic pressure guide oil pipe (24) connected to the outer wall of the oil-water separator (21);
And the pressure measuring instrument (25) is arranged at the bottom of the telescopic pressure guide oil pipe (24).
2. The mud pump pressure monitoring apparatus of claim 1, wherein: the pressure gauge (25) is in threaded connection with the telescopic pressure guide oil pipe (24).
3. The mud pump pressure monitoring apparatus of claim 1, wherein: the telescopic pressure guide oil pipe (24) is connected with the oil-water separator (21) through a connecting cylinder.
4. The mud pump pressure monitoring apparatus of claim 1, wherein: the top of the oil-water separator (21) is provided with an exhaust valve (26), and the exhaust valve (26) can be opened to discharge gas in the oil-water separator (21).
5. The mud pump pressure monitoring apparatus of claim 1, wherein: an oil pipe plug (231) is arranged at the bottom of the piston (22), and the oil pipe plug (231) is attached to the oil pipe (23).
6. A mud pump pressure monitoring apparatus as set forth in claim 3, wherein: the telescopic pressure guide oil pipe (24) stretches towards the horizontal direction and the vertical direction.
7. A mud pump pressure monitoring apparatus as set forth in claim 3, wherein: the diameter of the pipe orifice of the telescopic pressure guiding oil pipe (24) is far smaller than that of the pipe orifice of the elbow (12).
8. A mud pump pressure monitoring apparatus as set forth in claim 3, wherein: the outer wall of flexible guide oil pipe (24) and oil-water isolator (21) is provided with pivot (271), be provided with flexible bracing piece (272) between pivot (271).
CN202323119752.3U 2023-11-20 2023-11-20 Pump pressure monitoring device of slurry pump Active CN221198766U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202323119752.3U CN221198766U (en) 2023-11-20 2023-11-20 Pump pressure monitoring device of slurry pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202323119752.3U CN221198766U (en) 2023-11-20 2023-11-20 Pump pressure monitoring device of slurry pump

Publications (1)

Publication Number Publication Date
CN221198766U true CN221198766U (en) 2024-06-21

Family

ID=91526676

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202323119752.3U Active CN221198766U (en) 2023-11-20 2023-11-20 Pump pressure monitoring device of slurry pump

Country Status (1)

Country Link
CN (1) CN221198766U (en)

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