CN115788859A - Colliery fracturing pump plunger lubricating and cooling device and plunger pump in pit - Google Patents
Colliery fracturing pump plunger lubricating and cooling device and plunger pump in pit Download PDFInfo
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- CN115788859A CN115788859A CN202211417506.3A CN202211417506A CN115788859A CN 115788859 A CN115788859 A CN 115788859A CN 202211417506 A CN202211417506 A CN 202211417506A CN 115788859 A CN115788859 A CN 115788859A
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Abstract
The invention discloses a coal mine underground fracturing pump plunger lubricating and cooling device and a plunger pump, comprising: the oil tank body, be provided with the oil tank lid on the oil tank body, the oil-out has been seted up to oil tank body bottom, install the oil transportation mechanism on the oil-out, the oil transportation mechanism is linked together with the plunger combination screw on the plunger pump body. The structure is improved, the lubricating oil tank is arranged, the action of gravitational potential energy is utilized, the lubricating oil enters the plunger combination through a pipeline and is attached to the surface of the plunger, the friction force between the plunger and the filler is reduced, the surface temperature of the plunger is reduced, the lubricating and cooling effects are achieved, the service lives of the plunger and the filler are prolonged, the energy consumption cost of a device user and the production cost of a manufacturing party are reduced, in addition, the device is quick to install, easy to operate and high in reliability, the volume of the oil tank can be designed according to the number of the plungers, and the requirements of various pump types are met.
Description
Technical Field
The invention relates to the technical field of fracturing pump plunger cooling, in particular to a lubricating and cooling device for a coal mine underground fracturing pump plunger and a plunger pump.
Background
In recent years, the underground coal mine fracturing technology is widely applied to high-gas and high-gas-content coal fields. The fracturing pump is special in use environment and place, and the equipment must be installed on a special flat car and transported to a fracturing process point along an underground rail. And in the normal operation stage of the pump set, the pump set is basically in a large-flow high-pressure working condition, the operation time of each shift is at least more than 4 hours, the machine cannot be stopped during the operation, otherwise, the fracturing hole collapse is caused, and the huge loss is caused to a mine. This requires that the plungers and packing have good wear resistance and long run time capability under high flow and high pressure conditions.
At present, fracturing pump plunger lubrication cooling device is the force-feed lubrication mode mostly, need be equipped with solitary power, power supply, control scheme interface, gear oil pump and relevant pipeline and joins in marriage the external member, connects loaded down with trivial details and occupy certain space on narrow and small flatbed, increases the manufacturing cost of enterprise.
Disclosure of Invention
Aiming at the defects or shortcomings, the invention aims to provide a lubricating and cooling device for a plunger of a fracturing pump in a coal mine and a plunger pump, which not only achieve the purpose of lubricating and cooling the plunger, prolong the service lives of the plunger and a stuffing box, meet the requirements of underground equipment, but also save the installation space and time and save energy.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a colliery is fracturing pump plunger lubrication cooling device in pit includes: the oil tank comprises an oil tank body, wherein an oil tank cover is arranged on the oil tank body, an oil outlet is formed in the bottom of the oil tank body, an oil conveying mechanism is mounted on the oil outlet, and the oil conveying mechanism is communicated with a plunger combination screw hole in a plunger pump body.
The oil transportation mechanism comprises: and the control valve is communicated with the plunger combined screw hole through a connecting mechanism.
The control valve is a ball valve, the connecting mechanism comprises a transparent pipeline, quick-insertion type straight-through pipe joints are respectively installed at two ends of the transparent pipeline, one end of each quick-insertion type straight-through pipe joint is connected with the ball valve, and the other end of each quick-insertion type straight-through pipe joint is communicated with the plunger combined screw hole.
And the oil tank body is provided with a liquid level meter.
An air filter is arranged on the oil tank cover.
A plurality of oil outlets are formed in the circumferential direction of the bottom of the oil tank body, an oil conveying mechanism is mounted on the oil outlets in work, and sealing elements are mounted on the rest oil outlets.
Seven oil outlets are circumferentially arranged at the bottom of the oil tank body.
The bottom of the oil tank body is provided with a mounting piece used for being connected with a plunger pump.
The installation part is an angle steel which is fixedly installed at the top of the plunger pump casing through a nut group.
The plunger pump comprises a plunger pump body, wherein any one of the lubricating and cooling devices for the plunger of the coal mine underground fracturing pump is installed at the top of the plunger pump body.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a lubricating and cooling device for a coal mine underground fracturing pump plunger and a plunger pump, which are structurally improved, lubricating oil enters the inside of a plunger combination through a pipeline and is attached to the surface of the plunger by virtue of a lubricating oil tank under the action of gravitational potential energy, the friction force between the plunger and a filler is reduced, and the surface temperature of the plunger is reduced, so that the lubricating and cooling effects are achieved, the service lives of the plunger and the filler are prolonged, the energy consumption cost of a device using party and the production cost of a manufacturing party are reduced, in addition, the device is quick to install, easy to operate and high in reliability, and the volume of the oil tank can be designed according to the number of the plungers so as to meet the requirements of various pump types.
Drawings
FIG. 1 is a first structural schematic diagram of a lubricating and cooling device for a coal mine underground fracturing pump plunger of the invention;
FIG. 2 is a schematic structural diagram II of a lubricating and cooling device for a coal mine underground fracturing pump plunger;
fig. 3 is a schematic view of the plunger pump of the present invention.
In the figure, 1 is a quick-plugging type straight-through pipe joint; 2-transparent pipe; 3-a control valve; 4-inner joint; 5, an oil discharging seat; 6-oil tank body; 7-oil tank cover; 8-air filter; 9-a nut; 10, plugging with a thread; 11-a level gauge; 12-a screw; 13-angle steel; 14-oil tank connecting block; 15-oil outlet; 16-plunger combined screw hole.
Detailed Description
The present invention will now be described in detail with reference to the drawings, wherein the described embodiments are only some, but not all embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
In order to reduce the possibility that the coal seam plunger pump can be lubricated in time when in work and reduce the friction force between the plunger and each sealing ring, as shown in figures 1 and 2, the invention provides a lubricating and cooling device for the coal mine underground fracturing pump plunger, which comprises: the oil tank comprises an oil tank body 6, wherein an oil tank cover 7 is arranged on the oil tank body 6, an oil outlet 15 is formed in the bottom of the oil tank body 6, an oil conveying mechanism is mounted on the oil outlet 15, and the oil conveying mechanism is communicated with a plunger combination screw hole 16 of a plunger pump body 9. The oil tank body 6 increases the height of the oil tank body on the premise of ensuring the effective volume of lubricating oil, so that the gravitational potential energy of the lubricating oil is increased, the pressure at the bottom of the oil tank is improved, and the lubricating oil can be ensured to smoothly enter the plunger piston combination.
Wherein, oil transportation mechanism includes: install the oil drain seat 5 on oil-out 15, install control valve 3 on the oil drain seat 5, control valve 3 through coupling mechanism with plunger combination screw 16 is linked together, preferably, install flow sensor on the control valve 3, can acquire the oil mass value of lubricating oil in real time, help the staff to the control of flow. The oil drainage seat 5 is connected with the control valve 3 through an inner joint 4, illustratively, the control valve 3 is a ball valve, the connecting mechanism comprises a transparent pipeline 2, two ends of the transparent pipeline 2 are respectively provided with a fast-inserting type straight-through pipe joint 1, one end of the fast-inserting type straight-through pipe joint 1 is connected with the ball valve, and the other end of the fast-inserting type straight-through pipe joint 1 is communicated with the plunger combined screw hole 16. In order to facilitate the flow control and the observation of the flow, the transparent pipeline can be a PU pipe, and the length of the transparent pipeline is set and cut according to the actual distance.
Preferably, in order to facilitate oil quantity observation of lubricating oil, a liquid level meter 11 is installed on one side of the oil tank body 6, the liquid level meter 11 is arranged on the upper portion of a central line of an oil tank, the lubricating oil is ensured to be always positioned at a higher position of the oil tank, the action of gravitational potential energy of the lubricating oil is ensured, and a certain oil pressure is arranged at the bottom of the oil tank; 1 through-hole has been seted up at fuel tank cap 7 top, installs air cleaner 8 on this through-hole to it uses nut fixed mounting on fuel tank cap 7 inner wall, and the top welding of fuel tank cap 7 has round pin axle sleeve and handle, makes things convenient for opening of fuel tank cap 7.
In addition, in the invention, a plurality of oil outlets 15 are circumferentially arranged at the bottom of the oil tank body 6, an oil conveying mechanism is arranged on the oil outlet 15 in operation, and sealing elements are arranged on the other oil outlets 15. A plurality of oil outlets 15 are arranged to adapt to different work connection numbers of the plunger pumps, and are flexibly arranged and installed to meet various pump types and be suitable for various plunger pumps. For example, 3 oil outlets 15 are arranged on one side of the oil tank body 6, 2 spare oil outlets 15 are welded on the lower portion of the right side of the oil tank body, oil discharge seats 5 are arranged on the oil outlets 15, and if the number of the plunger pumps is increased to seven, the corresponding number of quick-insertion type straight-through pipe joints, PU pipes, ball valves and inner joints can be increased and the quick-insertion type straight-through pipe joints, the PU pipes, the ball valves and the inner joints are arranged on the spare oil discharge seats 5, so that the oil tank can be used; if the number of the plunger pumps is five or less, the plug 10 can be matched with the thread sealant to plug the oil outlet 15.
Further, the oil tank body 6 bottom is provided with the installed part that is used for being connected with the plunger pump, and is concrete, the installed part is angle steel 13, angle steel 13 passes through nut group 12 fixed mounting in plunger pump casing top. The two sides of the oil tank body are welded with oil tank connecting blocks 14 which are connected with angle steel 13 through nut groups 12; the angle steel 13 is welded on the top of the pump shell, so that the stability of the device is guaranteed, and the device cannot move during transportation. In the present invention, in order not to affect the plunger pump body 9, the plunger lubricating and cooling device for the coal mine underground fracturing pump is mounted on the top of the rack housing on the inclined surface of the plunger pump body 9, so that the sizes of the used angle steels 13 are different, and the height of the angle steel 13 on the side with the large inclination of the oil tank body 6 is larger than that of the angle steel 13 on the other side.
In addition, as shown in fig. 3, the invention also provides a plunger pump, which comprises a plunger pump body 9, wherein the lubricating and cooling device for the plunger of the coal mine underground fracturing pump in the embodiment is installed at the top of the plunger pump body 9, and the lubricating and cooling device for the plunger of the coal mine underground fracturing pump is installed at the top of the rack shell on the inclined plane of the plunger pump body 9.
The working principle and the installation steps of the invention are as follows:
according to the specific position of the oil tank body 6 on the rack shell, angle steel of the fixing mechanism is welded on the rack shell;
the nut group 12 penetrates through a round hole and a strip-shaped hole on the angle steel 13, so that the oil tank body 6 is fixed at the top of the rack shell on the inclined plane, and the oil tank is adjusted to be in a horizontal position;
connecting the quick-insertion type straight-through pipe joint 1 with a plunger combined screw hole 16;
then, the tank cap 7 is opened, the lubricant is added into the tank, and the position where the lubricant is added is visually observed to cap the tank cap 7.
And manually adjusting a handle of the ball valve, timing, and observing the flow rate of the lubricating oil through the PU pipe.
The height position of the lubricating oil in the oil tank body is observed through the liquid level 11, the lubricating oil is added in time, and the lubricating oil in the oil tank body is kept at a certain height position and has certain gravitational potential energy.
It will be appreciated by those skilled in the art that the above embodiments are merely preferred embodiments of the invention, and thus, modifications and variations may be made in the invention by those skilled in the art, which will embody the principles of the invention and achieve the objects and objectives of the invention while remaining within the scope of the invention.
Claims (10)
1. The utility model provides a colliery is fracturing pump plunger lubrication cooling device in pit which characterized in that includes: the oil tank comprises an oil tank body (6), wherein an oil tank cover (7) is arranged on the oil tank body (6), an oil outlet (15) is formed in the bottom of the oil tank body (6), an oil conveying mechanism is installed on the oil outlet (15), and the oil conveying mechanism is communicated with a plunger combination screw hole (16) in a plunger pump body (9).
2. The lubricating and cooling device for the plunger of the coal mine underground fracturing pump as claimed in claim 1, wherein the oil transportation mechanism comprises: an oil discharging seat (5) arranged on the oil outlet (15), a control valve (3) is arranged on the oil discharging seat (5), and the control valve (3) is communicated with the plunger combined screw hole (16) through a connecting mechanism.
3. The lubricating and cooling device for the plunger of the coal mine underground fracturing pump according to claim 2, wherein the control valve (3) is a ball valve, the connecting mechanism comprises a transparent pipeline (2), the two ends of the transparent pipeline (2) are respectively provided with a fast-inserting type straight-through pipe joint (1), one end of the fast-inserting type straight-through pipe joint (1) is connected with the ball valve, and the other end of the fast-inserting type straight-through pipe joint (1) is communicated with the plunger combined screw hole (16).
4. The lubricating and cooling device for the plunger of the coal mine underground fracturing pump according to claim 1 or 2, characterized in that a liquid level meter (11) is installed on the oil tank body (6).
5. The coal mine underground fracturing pump plunger lubricating and cooling device as claimed in claim 1 or 2, characterized in that an air filter (8) is mounted on the oil tank cover (7).
6. The lubricating and cooling device for the coal mine underground fracturing pump plunger piston as claimed in claim 1 or 2, wherein a plurality of oil outlets (15) are formed in the bottom of the oil tank body (6) in the circumferential direction, an oil conveying mechanism is mounted on the oil outlet (15) in operation, and sealing elements are mounted on the other oil outlets (15).
7. The lubricating and cooling device for the coal mine underground fracturing pump plunger piston as claimed in claim 6, wherein seven oil outlets (15) are formed in the bottom of the oil tank body (6) in the circumferential direction.
8. The coal mine underground fracturing pump plunger lubricating and cooling device as claimed in claim 1, characterized in that the bottom of the oil tank body (6) is provided with a mounting piece for connecting with a plunger pump.
9. The lubricating and cooling device for the plunger of the coal mine underground fracturing pump as claimed in claim 8, wherein the mounting piece is an angle steel (13), and the angle steel (13) is fixedly mounted on the top of the plunger pump casing through a nut group (12).
10. A plunger pump, characterized in that the plunger pump comprises a plunger pump body (9), and the lubricating and cooling device for the plunger of the coal mine underground fracturing pump as claimed in any one of claims 1 to 9 is installed on the top of the plunger pump body (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211417506.3A CN115788859A (en) | 2022-11-11 | 2022-11-11 | Colliery fracturing pump plunger lubricating and cooling device and plunger pump in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211417506.3A CN115788859A (en) | 2022-11-11 | 2022-11-11 | Colliery fracturing pump plunger lubricating and cooling device and plunger pump in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115788859A true CN115788859A (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211417506.3A Pending CN115788859A (en) | 2022-11-11 | 2022-11-11 | Colliery fracturing pump plunger lubricating and cooling device and plunger pump in pit |
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| CN (1) | CN115788859A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117167639A (en) * | 2023-08-28 | 2023-12-05 | 湖北中油科昊机械制造有限公司 | Well cementation fracturing pump plunger lubricating arrangement |
-
2022
- 2022-11-11 CN CN202211417506.3A patent/CN115788859A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117167639A (en) * | 2023-08-28 | 2023-12-05 | 湖北中油科昊机械制造有限公司 | Well cementation fracturing pump plunger lubricating arrangement |
| CN117167639B (en) * | 2023-08-28 | 2024-04-05 | 湖北中油科昊机械制造有限公司 | Well cementation fracturing pump plunger lubricating arrangement |
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