Grease injection maintenance device for natural gas long-distance pipeline valve

Abstract

The utility model relates to a natural gas long-distance pipeline valve grease injection maintenance device which comprises a movable carrier, an installation frame, an energy storage device, a grease storage bin and a compression energy storage system, the installation frame is installed on the movable carrier, and the energy storage device, the grease storage bin and the compression energy storage system are respectively installed on the installation frame. The energy storage device is connected with the top of the grease storage bin through a pipeline, the grease storage bin is connected with a valve grease injection nozzle hanging ring through a pipeline, and the compression energy storage system is connected with the energy storage device and used for storing high-pressure gas into the energy storage device. The energy storage device has the advantages that the structural design is simple and reasonable, air is input into the energy storage device through the compression energy storage system to be stored, the energy storage device is in butt joint with the grease storage bin to enable pressure to be generated in the grease storage bin, lubricating grease is output under the influence of internal positive pressure, the energy charging output function is achieved, the problem that air pressure needs to be supplemented into the energy storage device is solved, and the energy storage device is convenient to use. And the efficiency of grease injection work is improved.

Description

Technical Field

[0001] The utility model relates to the field of pipeline valve maintenance devices, in particular to a grease injection maintenance device for natural gas long-distance pipeline valves. Background Art

[0002] The laying of natural gas long-distance pipelines is inseparable from the installation of valves. Through valves, the transportation of natural gas can be better managed. Valves require maintenance in daily use, and regular greasing is one of the maintenance items of natural gas long-distance pipelines. Usually, staff need to grease the valves through greasing devices.

[0003] Chinese patent number CN202222008346.9 discloses a natural gas long-distance pipeline valve grease injection maintenance device, comprising: a grease storage cylinder, the top of the above-mentioned grease storage cylinder is connected to a drive shell, the above-mentioned drive shell and the grease storage cylinder are connected, one side of the above-mentioned drive shell is connected to a handle, a drive mechanism is arranged between the above-mentioned drive shell and the inside of the grease storage cylinder, the other side of the above-mentioned drive shell is connected to a linkage mechanism, the above-mentioned linkage mechanism is connected to the driving mechanism, the above-mentioned linkage mechanism is connected to a cleaning cylinder, the above-mentioned cleaning cylinder is provided with two wiping mechanisms, the bottom of the above-mentioned grease storage cylinder is threadedly connected to a connecting block, the bottom of the above-mentioned connecting block is connected to a grease injection tube, one end of the above-mentioned grease injection tube is connected to a grease injection port connector, and the above-mentioned grease injection port connector is provided with a pressure gauge.

[0004] From the above, it can be seen that by opening the forward and reverse motors in the forward direction, the sleeve will rise on the outer surface of the screw rod when the screw rod rotates, so that the piston block slides upward inside the fat storage cylinder to draw the fat into the fat storage cylinder. The forward and reverse motors can be opened in the reverse direction to allow the fat inside the fat storage cylinder to be injected into the valve through the grease injection tube and the grease injection port connector. However, this case also has the following shortcomings: the prior art usually uses an air compressor with the help of the air tank pressure of the air respirator to achieve the output of grease injection, but this pressure consumption is too fast, and an air tank cannot fill many valves. The air pressure inside the air tank often needs to be supplemented, which lacks a certain efficiency during use and increases the operating coefficient of personnel.

[0005] Based on this, it is necessary to develop a new natural gas long-distance pipeline valve grease injection maintenance device. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a grease injection maintenance device for a natural gas long-distance pipeline valve, which effectively overcomes the defects of the prior art.

[0007] The technical solution of the utility model to solve the above technical problems is as follows:

[0008] A natural gas long-distance pipeline valve grease injection maintenance device comprises a mobile carrier, a mounting frame, an energy accumulator, a grease storage bin, and a compressed energy storage system. The mounting frame is mounted on the mobile carrier, and the energy accumulator, the grease storage bin, and the compressed energy storage system are respectively mounted on the mounting frame. The energy accumulator is connected to the top of the grease storage bin via a pipeline, and the grease storage bin is connected to a valve grease injection nozzle hanging ring via a pipeline. The compressed energy storage system is connected to the energy accumulator for storing high-pressure gas in the energy accumulator.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the above-mentioned mounting frame is a hollow frame.

[0011] Furthermore, the above-mentioned mobile carrier includes a base, a handrail guardrail arranged on one side of the upper end of the base, and a walking mechanism installed on the lower end of the above-mentioned base.

[0012] Furthermore, the walking mechanism comprises a plurality of walking wheels installed at intervals at the lower end of the base.

[0013] Furthermore, the energy storage device is an energy storage tank, which is provided with an inlet and an outlet, wherein the inlet is connected to the compressed energy storage system via a pipeline, and the outlet is connected to the fat storage bin via a pipeline.

[0014] Furthermore, a control valve is provided at the outlet of the energy storage tank.

[0015] Furthermore, a pressure gauge is provided on the top of the energy storage tank.

[0016] Furthermore, a grease injection port and a punching port with a valve are provided on the top of the grease storage bin, a grease outlet is provided on the bottom of the grease storage bin, the punching port is connected to the energy storage device via a pipeline, the grease outlet is connected to the valve grease injection nozzle hanging ring via a pipeline, and the grease outlet is provided with a precision pressure reducing valve.

[0017] Furthermore, the above-mentioned compressed energy storage system includes a diesel tank, a diesel engine and an air compressor, the output shaft of the above-mentioned diesel engine is drivingly connected to the input shaft of the above-mentioned air compressor, the compressed gas outlet of the above-mentioned air compressor is connected to the above-mentioned energy storage device through a pipeline, and the above-mentioned diesel tank is connected to the oil inlet of the above-mentioned diesel engine through a pipeline.

[0018] Furthermore, a mounting plate is provided on an upper portion of one side of the mounting frame, and the diesel tank is mounted on the mounting plate, and its height is higher than the oil inlet of the diesel engine.

[0019] The beneficial effects of the utility model are as follows: the structural design is simple and reasonable, air is input into the energy storage device for storage through the compression energy storage system, the energy storage device is connected with the grease storage bin to generate pressure inside the grease storage bin, and the grease is output under the influence of the internal positive pressure, thereby realizing the function of energy charging output, solving the problem of needing to supplement the air pressure inside the energy storage device, and improving the efficiency of the grease injection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a grease injection maintenance device for a natural gas long-distance pipeline valve of the utility model;

[0021] Figure 2 It is a schematic diagram of the separate structure of the mobile carrier and other components in the natural gas long-distance pipeline valve grease injection maintenance device of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the mobile carrier in the natural gas long-distance pipeline valve grease injection maintenance device of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the remaining components of the natural gas long-distance pipeline valve grease injection maintenance device of the utility model after removing the mobile carrier;

[0024] Figure 5 It is a structural schematic diagram from another perspective of the remaining components of the natural gas long-distance pipeline valve grease injection maintenance device of the utility model after removing the mobile carrier.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Mobile carrier; 2. Mounting frame; 3. Energy accumulator; 4. Grease storage bin; 5. Valve grease nozzle hanging ring; 11. Base; 12. Handrail guardrail; 13. Walking mechanism; 21. Mounting plate; 41. Precision pressure reducing valve; 61. Diesel tank; 62. Diesel engine; 63. Air compressor. DETAILED DESCRIPTION

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0028] Example: Figure 1 , 2As shown in Figures 3, 4 and 5, the natural gas long-distance pipeline valve grease injection maintenance device of this embodiment includes a mobile carrier 1, a mounting frame 2, an energy accumulator 3, a grease storage bin 4 and a compression energy storage system. The mounting frame 2 is mounted on the mobile carrier 1, and the energy accumulator 3, the grease storage bin 4 and the compression energy storage system are respectively mounted on the mounting frame 2. The energy accumulator 3 is connected to the top of the grease storage bin 4 through a pipeline, and the grease storage bin 4 is connected to the valve grease injection nozzle hanging ring 5 through a pipeline. The compression energy storage system is connected to the energy accumulator 3 for storing high-pressure gas in the energy accumulator 3.

[0029] The usage process is as follows:

[0030] The compressed energy storage system compresses air (its main function is to compress and cool the air) to a certain pressure and temperature, and then transports the compressed air into the energy accumulator 3 for storage, and then during the grease injection process, the energy accumulator 3 is connected with the grease storage bin 4 to generate pressure (positive pressure) inside the grease storage bin 4, and the grease inside the grease storage bin 4 is transported by pressure to make it reach the valve grease injection nozzle hanging ring 5 through the output pipeline, and then the valve connected with the valve grease injection nozzle hanging ring 5 is used for grease injection maintenance (or other external grease injection business). The structural design of the entire device is simple and reasonable, and air is input into the energy accumulator for storage through the compressed energy storage system, and the energy accumulator is connected with the grease storage bin to generate pressure inside the grease storage bin, and the grease is output under the influence of the internal positive pressure, thereby realizing the function of charging output, solving the problem of needing to supplement the air pressure inside the energy accumulator, and improving the efficiency of grease injection.

[0031] As a preferred embodiment, the mounting frame 2 is a hollow frame.

[0032] In the above embodiment, the mounting frame 2 adopts a hollow frame, which can reduce consumables, reduce weight, and facilitate transportation. At the same time, the mounting frame 2 adopts a three-dimensional hollow frame, and the energy storage device 3, the fat storage bin 4, and the compressed energy storage system are all installed in the mounting frame 2, which plays a certain protective role for the above components. The overall structural design is simple, which is conducive to the stable installation and use of the energy storage device 3, the fat storage bin 4, and the compressed energy storage system.

[0033] As a preferred embodiment, Figure 3 As shown, the mobile carrier 1 includes a base 11 , a handrail guardrail 12 arranged on one side of the upper end of the base 11 , and a walking mechanism 13 installed on the lower end of the base 11 .

[0034] In the above-mentioned implementation scheme, the base 11 can also serve as the bearing unit of the entire device, and a relatively strong frame structure can be adopted. A mounting table can be set at the upper end of the frame structure. A handrail guardrail 12 is installed on one side of the upper end of the base 11, which can not only assist the operators to stand and climb, but also the operators can push the entire device to walk along the ground through the walking mechanism 13 at the bottom of the base 11 by holding the upper part of the handrail guardrail 12. The design is simple and easy to use.

[0035] In this embodiment, the handrail guardrail 12 adopts a door-shaped structure and is vertically installed on one side of the upper end of the base 11.

[0036] In this embodiment, the walking mechanism 13 includes a plurality of walking wheels installed at intervals at the lower end of the base 11 .

[0037] In this embodiment, the energy storage device 3 is a conventional high-pressure energy storage tank, which is provided with an inlet and an outlet, the inlet is connected to the compressed energy storage system through a pipeline, and the outlet is connected to the fat storage tank 4 through a pipeline. Compressed air enters the energy storage device 3 to achieve normal pressurized storage.

[0038] As a preferred embodiment, a control valve is provided at the outlet of the energy storage tank, and the control valve may be an existing control valve with a pressure reducing function (such as a precision pressure reducing control valve).

[0039] In the above implementation scheme, the design of the control valve at the outlet can be flexibly opened and closed according to usage requirements, thereby achieving pressure release or output.

[0040] In this embodiment, a pressure gauge is provided on the top of the energy storage tank. The pressure gauge can provide real-time feedback of the pressure value inside the energy storage device 3, and the operator can judge or adjust the subsequent use (such as continued use or the need for stamping) according to the pressure value. At the same time, the pressure value can also be used as a monitoring of the safety pressure inside the energy storage device 3 to ensure safe stamping.

[0041] As a preferred embodiment, the top of the above-mentioned fat storage bin 4 is provided with a grease injection port with a valve (denoted by A in the figure) and a punching port, and the bottom of the above-mentioned fat storage bin 4 is provided with a grease outlet, the above-mentioned punching port is connected to the above-mentioned energy storage device 3 through a pipeline, and the above-mentioned grease outlet is connected to the above-mentioned valve grease injection nozzle hanging ring 5 through a pipeline (denoted by B in the figure), and the above-mentioned grease outlet is provided with a precision pressure reducing valve 41.

[0042] In the above embodiment, the grease injection port is opened to facilitate the replenishment of lubricating grease, and closed to store grease normally. The precision pressure reducing valve 41 adjusts the flow of the medium by controlling the opening of the opening and closing parts in the valve body to reduce the pressure of the medium. At the same time, the opening of the opening and closing parts is adjusted by the effect of the pressure after the valve, so that the pressure after the valve is kept within a certain range. When the inlet pressure is constantly changing, the outlet pressure is kept within the set range to prevent the grease output from the valve grease injection nozzle hanging ring 5 from being more or less uneven.

[0043] As a preferred embodiment, the above-mentioned compressed energy storage system includes a diesel tank 61, a diesel engine 62 and an air compressor 63, the output shaft of the above-mentioned diesel engine 62 is drivingly connected to the input shaft of the above-mentioned air compressor 63, the compressed gas outlet of the above-mentioned air compressor 63 is connected to the above-mentioned energy storage device 3 through a pipeline, and the above-mentioned diesel tank 61 is connected to the oil inlet of the above-mentioned diesel engine 62 through a pipeline.

[0044] In the above embodiment, when in use, the diesel tank 61 delivers diesel to the diesel engine 62 (a conventional small diesel engine on the market is used) through an oil pipeline. The diesel engine 62 generates energy by burning diesel, and then transmits the generated mechanical energy to the air compressor 63. The air compressor 63 compresses the air to a higher pressure and compresses it. Its main function is to compress and cool the air to a certain pressure and temperature. When the diesel engine 62 is working, the air compressor 63 starts to rotate, and sucks air into the machine while rotating. After continuous compression, the air is forced to be discharged outward. At this time, the air has been compressed and cooled, so that the air compressor 63 inputs the compressed air into the energy storage device 3 for storage. Its structural design is reasonable, and the diesel engine 62 drives the air compressor 63 to run to realize the output of compressed gas. It runs smoothly and has strong endurance, and is suitable for use in various environments.

[0045] As a preferred embodiment, a mounting plate 21 is provided on an upper portion of one side of the mounting frame 2 , and the diesel tank 61 is mounted on the mounting plate 21 , and its height is higher than the oil inlet of the diesel engine 62 .

[0046] In the above implementation scheme, the position design of the mounting plate 21 makes the diesel tank 61 at a high position, which is conducive to the transportation of diesel to the interior of the diesel engine 62. At the same time, this layout can reduce the horizontal footprint of the entire device, and the structural design is more compact.

[0047] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0052] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A grease injection maintenance device for valves in a long-distance natural gas pipeline, characterized in that: The invention comprises a mobile carrier (1), a mounting frame (2), an energy accumulator (3), a fat storage bin (4), and a compression energy storage system. The mounting frame (2) is mounted on the mobile carrier (1), the energy accumulator (3), the fat storage bin (4), and the compression energy storage system are mounted on the mounting frame (2) respectively, the energy accumulator (3) is connected to the top of the fat storage bin (4) via a pipeline, the fat storage bin (4) is connected to a valve grease injection nozzle hanging ring (5) via a pipeline, and the compression energy storage system is connected to the energy accumulator (3) for storing high-pressure gas in the energy accumulator (3).

2. A natural gas long-distance pipeline valve grease injection maintenance device according to claim 1, characterized in that: The mounting frame (2) is a hollow frame.

3. A grease injection maintenance device for natural gas long-distance pipeline valves according to claim 1, characterized in that: The mobile carrier (1) comprises a base (11), a handrail guardrail (12) arranged on one side of the upper end of the base (11), and a walking mechanism (13) installed on the lower end of the base (11).

4. A grease injection maintenance device for valves in a long-distance natural gas pipeline according to claim 3, characterized in that: The walking mechanism (13) comprises a plurality of walking wheels which are installed at intervals on the lower end of the base (11).

5. A grease injection maintenance device for valves in a long-distance natural gas pipeline according to claim 1, characterized in that: The energy storage device (3) is an energy storage tank, which is provided with an inlet and an outlet, wherein the inlet is connected to the compressed energy storage system via a pipeline, and the outlet is connected to the fat storage bin (4) via a pipeline.

6. A grease injection maintenance device for valves in a long-distance natural gas pipeline according to claim 5, characterized in that: The outlet of the energy storage tank is provided with a control valve.

7. A grease injection maintenance device for valves in a long-distance natural gas pipeline according to claim 5, characterized in that: A pressure gauge is provided on the top of the energy storage tank.

8. The device for grease injection and maintenance of natural gas long-distance pipeline valves according to claim 1 is characterized by: The top of the fat storage bin (4) is provided with a grease injection port and a punching port with a valve, and the bottom of the fat storage bin (4) is provided with a grease outlet. The punching port is connected to the energy accumulator (3) via a pipeline, and the grease outlet is connected to the valve grease injection nozzle hanging ring (5) via a pipeline. The grease outlet is provided with a precision pressure reducing valve (41).

9. A grease injection maintenance device for natural gas long-distance pipeline valves according to claim 1, characterized in that: The compressed energy storage system comprises a diesel tank (61), a diesel engine (62) and an air compressor (63); the output shaft of the diesel engine (62) is drivingly connected to the input shaft of the air compressor (63); the compressed gas outlet of the air compressor (63) is connected to the energy storage device (3) via a pipeline; and the diesel tank (61) is connected to the oil inlet of the diesel engine (62) via a pipeline.

10. A grease injection maintenance device for valves in a long-distance natural gas pipeline according to claim 9, characterized in that: A mounting plate (21) is provided on the upper part of one side of the mounting frame (2), and the diesel tank (61) is mounted on the mounting plate (21), and its height is higher than the oil inlet of the diesel engine (62).

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