CN210715071U - Pipeline structure, fracturing pump and fracturing truck - Google Patents
Pipeline structure, fracturing pump and fracturing truck Download PDFInfo
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- CN210715071U CN210715071U CN201921856854.4U CN201921856854U CN210715071U CN 210715071 U CN210715071 U CN 210715071U CN 201921856854 U CN201921856854 U CN 201921856854U CN 210715071 U CN210715071 U CN 210715071U
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Abstract
The utility model provides a pipeline structure, fracturing pump and fracturing unit truck relates to oil fracturing technical field. The pipeline structure comprises a transmission pipeline and an output pipeline, wherein the output pipeline comprises two ends, the two ends of the output pipeline are communicated with the transmission pipeline, and the transmission pipeline is used for supplying liquid to the output pipeline. Along the length direction of the output pipeline, a plurality of liquid outlets are arranged on the pipe body of the output pipeline at intervals. The liquid pump comprises a pump body and the pipeline structure. The fracturing truck comprises a carrier vehicle and the liquid pump. The utility model discloses having alleviated the in-process that exists at the liquid pump conveying liquid among the prior art, when liquid reachd a plurality of exits of suction line from the import of suction line, because the distance is far away, and liquid easily flows into the liquid end from the export that is close to the import of suction line, therefore the difficult exit of keeping away from the import that reachs the suction line of liquid, and then the exit of keeping away from the import that easily leads to the suction line produces the cavitation phenomenon, reduces the technical problem of the water absorption efficiency of liquid pump.
Description
Technical Field
The utility model belongs to the technical field of the oil fracturing technique and specifically relates to a pipeline structure, fracturing pump and fracturing truck are related to.
Background
In the process of oil extraction or gas production, the fracturing action can utilize the hydraulic action to crack the stratum, thereby improving the flowing environment of oil in the underground and increasing the yield of an oil well. The fracturing pump is the primary actuator of the fracturing activity and is used to inject a large volume of fracturing fluid into the well to fracture the formation to create a fracture.
The fracturing pump comprises a suction pipeline, a hydraulic end and a power end. The suction pipeline is of a single-pipeline structure and comprises an inlet and five outlets, the inlet of the suction pipeline is communicated with the external liquid supply device, and the five outlets of the suction pipeline are arranged on the pipe body of the suction pipeline at intervals along the extending direction of the suction pipeline. The hydraulic end is also called a pump head and comprises five inlets, and the five inlets of the hydraulic end are correspondingly communicated with the five outlets of the suction pipeline one by one. The power end is used for transmitting the energy of a power system in the power end to the hydraulic end, and the hydraulic end is used for conveying liquid, so that the liquid can enter a pipeline behind the fracturing pump after sequentially passing through the suction pipeline and the hydraulic end.
However, in the process of delivering liquid by the fracturing pump, when the liquid reaches a plurality of outlets of the suction pipeline from the inlet of the suction pipeline, the distance is long, and the liquid is easy to flow into the hydraulic end from the outlet of the suction pipeline close to the inlet, so that the liquid is not easy to reach the outlet of the suction pipeline far from the inlet, and further the cavitation phenomenon is easily generated at the outlet of the suction pipeline far from the inlet, and the water absorption efficiency of the fracturing pump is reduced. Furthermore, the cavitation phenomenon exists not only in the fracturing pump but also in the remaining liquid pumps.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pipeline structure, fracturing pump and fracturing truck to alleviate the in-process that exists among the prior art at the liquid pump delivery liquid, when a plurality of exits of suction line were reachd to the import of liquid from suction line, because the distance is far away, and liquid easily flows in the liquid end from the export of suction line that is close to the import, therefore the difficult exit of keeping away from the import that reachs suction line of liquid, and then the exit of keeping away from the import that easily leads to suction line produces the cavitation phenomenon, reduce the technical problem of the water absorption efficiency of liquid pump.
The utility model provides a pipeline structure which comprises a transmission pipeline and an output pipeline;
the output pipeline comprises two ends, the two ends of the output pipeline are both communicated with the transmission pipeline, and the transmission pipeline is used for supplying liquid to the output pipeline;
along the length direction of the output pipeline, a plurality of liquid outlets are arranged on the pipe body of the output pipeline at intervals.
Furthermore, the transmission pipeline comprises two ends, one end of the transmission pipeline is communicated with one end of the output pipeline, and the other end of the transmission pipeline is communicated with the other end of the output pipeline.
Furthermore, the axis of the output pipeline and the axis of the transmission pipeline are in a straight line shape;
the pipeline structure further comprises a first joint and a second joint, wherein the first joint is communicated between one end of the output pipeline and one end of the transmission pipeline, and the second joint is communicated between the other end of the output pipeline and the other end of the transmission pipeline.
Further, the first connector comprises a communicating pipe and a shunt pipe;
the communicating pipe comprises two pipe orifices, and the shunt pipe comprises three pipe orifices;
one of the pipe orifices of the flow dividing pipe is a liquid inlet, the other pipe orifice of the flow dividing pipe is communicated with one end of the transmission pipeline, and the last pipe orifice of the flow dividing pipe is communicated with one of the pipe orifices of the communicating pipe;
the other nozzle of the communicating pipe is communicated with one end of the transmission pipeline.
Furthermore, the axis of the shunt pipe is T-shaped, and the axis of the communicating pipe is arc-shaped.
Furthermore, the pipeline structure also comprises a connecting plate, and a plurality of through holes are formed in the connecting plate;
the liquid outlets are communicated with one sides of the through holes in a one-to-one correspondence mode, and the other sides of the through holes are communicated with the inlets of the external pump body in a one-to-one correspondence mode.
Further, the pipeline structure further comprises an output pipe, the output pipe is in a straight line shape, and the liquid outlet is communicated with the through hole through the output pipe.
Furthermore, the middle part of the pipe body of the transmission pipeline is provided with an opening, the middle part of the pipe body of the output pipeline is provided with an opening, and the opening in the middle part of the transmission pipeline is communicated with the opening in the middle part of the output pipeline.
The utility model provides a fracturing pump, which comprises a pump body and a pipeline structure in any one of the technical schemes, wherein the pump body is provided with a plurality of inlets;
a plurality of inlets of the pump body are communicated with a plurality of liquid outlets in the pipeline structure in a one-to-one correspondence manner.
The utility model provides a fracturing truck includes carrier loader and above-mentioned fracturing pump, and the fracturing pump is installed on the carrier loader.
The utility model provides a pipeline structure, fracturing pump and fracturing truck can produce following beneficial effect:
the utility model provides a pipeline structure includes transmission pipeline and output pipeline. The utility model provides a pipeline structure can be arranged in the liquid pump, the liquid outlet in the output pipeline and the import intercommunication of the outside pump body. When a liquid pump with the pipeline structure is used for sucking liquid, the liquid can firstly enter from a transmission pipeline and flow to an output pipeline. Because the two ends of the output pipeline are communicated with the transmission pipeline, liquid can respectively flow into the output pipeline from the two ends of the output pipeline, and the liquid entering the output pipeline at the moment sequentially passes through the plurality of liquid outlets on the output pipeline along two different directions and is converged at the same liquid outlet. Meanwhile, when liquid flows through the plurality of liquid outlets, part of the liquid can flow out from the liquid outlets, and part of the liquid can continue to flow to the next liquid outlet. It can be seen that, to the utility model provides a pipeline structure, liquid can follow two directions respectively and pass through a plurality of liquid outlets in proper order, changes in making every liquid outlet department all lead to there is liquid, and a plurality of liquid outlet departments all can be filled by liquid this moment, are difficult for producing the cavitation phenomenon.
Compared with the prior art, the utility model discloses utilize the output pipeline both ends all to communicate with transmission pipeline, can be so that the liquid that gets into among the pipeline structure flows to a plurality of liquid outlets along the equidirectional a plurality of liquid outlets in proper order from the output pipeline both ends respectively, can make liquid can reach each liquid outlet department then for each liquid outlet department is difficult for producing cavitation, and then promotes the water absorption efficiency of liquid pump.
The utility model provides a fracturing pump includes the pump body and above-mentioned pipeline structure, is provided with a plurality of imports on the pump body, a plurality of liquid outlet one-to-one intercommunication in a plurality of imports of the pump body and the pipeline structure. Because the utility model provides a plurality of liquid outlet one-to-one intercommunication in import and the above-mentioned pipeline structure of fracturing pump, therefore liquid can be earlier when being sent by this fracturing pump and enter into the pump body through above-mentioned pipeline structure, the utility model provides a fracturing pump also can reduce the cavitation phenomenon, promotes the efficiency that absorbs water.
The utility model provides a fracturing truck includes carrier loader and above-mentioned fracturing pump, and the fracturing pump is installed on the carrier loader. The utility model provides a fracturing truck includes above-mentioned fracturing pump, therefore the utility model provides a fracturing truck has the same beneficial effect with above-mentioned fracturing pump.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a pipe structure according to a first embodiment of the present invention;
fig. 2 is a top view of the pipe structure of fig. 1.
Icon: 1-an output pipeline; 2-a transmission pipeline; 3-a liquid outlet; 4-a first joint; 40-communicating tube; 41-shunt tube; 5-a second linker; 6-connecting plates; 7-output pipe.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the pipeline structure provided by the present embodiment includes a transmission pipeline 2 and an output pipeline 1, where the output pipeline 1 includes two ends, both ends of the output pipeline 1 are communicated with the transmission pipeline 2, and the transmission pipeline 2 is used to supply liquid to the output pipeline 1. Along the length direction of the output pipeline 1, a plurality of liquid outlets 3 are arranged on the pipe body of the output pipeline 1 at intervals.
The pipeline structure that this embodiment provided can be used for among the liquid pump, the liquid outlet 3 in the output pipeline 1 and the import intercommunication of the outside pump body. When a liquid pump with the pipe structure is used to suck liquid, the liquid can firstly enter from the transmission pipeline 2 and flow to the output pipeline 1. Because the two ends of the output pipeline 1 are both communicated with the transmission pipeline 2, the liquid can respectively flow into the output pipeline 1 from the two ends of the output pipeline 1, and at the moment, the liquid entering the output pipeline 1 sequentially passes through the liquid outlets 3 on the output pipeline 1 along two different directions and is converged at the same liquid outlet 3. Meanwhile, when liquid flows through the plurality of liquid outlets 3, part of the liquid flows out from the liquid outlets 3, and part of the liquid continues to flow to the next liquid outlet 3. It can be seen that to the pipeline structure that this embodiment provided, liquid can follow two directions respectively and pass through a plurality of liquid outlets 3 in proper order, changes in that it has liquid to make every liquid outlet 3 department all lead to, and a plurality of liquid outlets 3 department all can be filled by liquid this moment, is difficult for producing the cavitation phenomenon.
Compared with the prior art, this embodiment utilizes 1 both ends of output pipeline all to communicate with transmission pipeline 2, can be so that the liquid that gets into among the pipeline structure flows to a plurality of liquid outlets 3 along the not equidirectional in proper order from 1 both ends of output pipeline respectively, can make liquid can reach 3 departments of each liquid outlet then for 3 departments of each liquid outlet are difficult for producing the cavitation, and then promote the water absorption efficiency of liquid pump.
Therefore, the pipeline structure provided by the embodiment alleviates the technical problems that in the process of conveying liquid by the liquid pump, when the liquid reaches a plurality of outlets of the suction pipeline from the inlet of the suction pipeline, the liquid is far away and flows into the liquid end from the outlet of the suction pipeline close to the inlet, so that the liquid is not easy to reach the outlet of the suction pipeline far from the inlet, and the outlet of the suction pipeline far from the inlet is easy to generate cavitation, and the water suction efficiency of the liquid pump is reduced.
In addition, since the pipeline structure provided by this embodiment includes the transmission pipeline 2, and the liquid needs to pass through the transmission pipeline 2 and then reach the liquid outlet 3, there is a buffering process when the liquid flows to the liquid outlet 3. Compare among the prior art rivers directly flow to liquid outlet 3 through the single pipeline, because the velocity of liquid flow is too fast, cause the impact to the outside pump body after liquid outlet 3 and liquid outlet 3, and then destroy the phenomenon of the outside pump body behind liquid outlet 3 and the liquid outlet 3, this embodiment can also utilize the process of transmission pipeline 2 buffering liquid flow direction liquid outlet 3, reduces the impact of the liquid that the pump body of pipeline structure or 3 rear ends of liquid outlet received, prolongs the life of pipeline structure or the pump body.
Further, the transmission pipeline 2 comprises two ends, one end of the transmission pipeline 2 is communicated with one end of the output pipeline 1, and the other end of the transmission pipeline 2 is communicated with the other end of the output pipeline 1.
The structure of the transmission pipeline 2 has various forms, the transmission pipeline 2 may be a pipeline, or a pipeline provided with branches, and in order to simplify and tidy the pipeline structure, the transmission pipeline 2 is preferably a pipeline in this embodiment, and both ends of the pipeline are both ends of the transmission pipeline 2.
Wherein, transmission pipeline 2 may also be provided with the inlet with outside liquid intercommunication, the inlet is used for getting into transmission pipeline 2's opening as outside liquid. Set up the inlet on transmission pipeline 2, can pull open the distance between inlet and the liquid outlet 3 on the output pipeline 1 to and shorten the distance that liquid in transmission pipeline 2 reachd 3 departments from the inlet, and then make the flow of liquid in the inlet pipeline more even, further reduction cavitation, the efficiency of absorbing water of promotion liquid pump.
As shown in fig. 1, the axis of the output pipe 1 and the axis of the transfer pipe 2 are both in a straight line. The pipe structure further comprises a first joint 4 and a second joint 5, the first joint 4 communicating between one of the ends of the output pipe 1 and one of the outlets of the transport pipe 2, and the second joint 5 communicating between the other end of the output pipe 1 and the other outlet of the transport pipe 2.
When the axis of the output pipeline 1 and the axis of the transmission pipeline 2 are both in a straight line, both the output pipeline 1 and the transmission pipeline 2 can be made of straight pipes. The first joint 4 and the second joint 5 are used to communicate between the output pipe 1 and the transport pipe 2 and to form the inlet pipe into a ring shape.
Further, the first connector 4 includes a communicating tube 40 and a dividing tube 41, the communicating tube 40 includes two nozzles, and the dividing tube 41 includes three nozzles. One of the orifices of the dividing pipe 41 is a liquid inlet, the other orifice of the dividing pipe 41 is communicated with one end of the transmission pipeline 2, and the last orifice of the dividing pipe 41 is communicated with one of the orifices of the communicating pipe 40. The other nozzle of the communicating pipe 40 communicates with one end of the transfer pipe 2.
In order to communicate the in-line output pipeline 1 and the in-line transmission pipeline 2, the first joint 4 should have a bent portion.
Further, the axis of the shunt tube 41 is T-shaped, and the axis of the communicating tube 40 is arc-shaped.
As shown in fig. 1, in the present embodiment, it is preferable that the bent portion of the first joint 4 is disposed on the communication pipe 40, and the communication pipe 40 may adopt an existing arc-shaped two-way joint. Further, the bending angle of the communication pipe 40 may be 90 degrees.
In practical applications, the liquid inlet may also be disposed on the first connector 4, and the shunt tube 41 of the first connector 4 includes three openings, as shown in fig. 1, the axis of the shunt tube 41 is T-shaped, and the shunt tube 41 may be a T-shaped three-way connector.
Furthermore, in order to connect the in-line output pipeline 1 and the in-line transmission pipeline 2, the second joint 5 should also have a bent portion. As shown in fig. 1, the axis of the second joint 5 is U-shaped, and the second joint 5 may be a U-shaped two-way joint.
The pipeline structure that this embodiment provided can utilize current straight tube, two-way connection and three way connection to connect and form, and simple structure and convenient for material collection, manufacturing cost is also lower.
The bending angles of the two open ends of the second joint 5 compared with the closed end of the second joint 5 can be both 90 degrees.
As shown in fig. 1 and 2, the pipe structure further includes a connection plate 6, and the connection plate 6 is provided with a plurality of through holes. A plurality of liquid outlets 3 communicate with one side one-to-one of a plurality of through-holes, and the opposite side of a plurality of through-holes communicates with a plurality of imports one-to-one of the outside pump body.
The connecting plate 6 is convenient for communicate a plurality of liquid outlets 3 with a plurality of imports of the outside pump body one-to-one, can be so that this pipeline structure and the connection between the outside pump body are more stable.
Wherein the connecting plate 6 may be an existing flange plate.
Further, as shown in fig. 1, the pipeline structure provided in this embodiment further includes an output pipe 7, the output pipe 7 is in a shape of a straight line, and the liquid outlet 3 is communicated with the through hole through the output pipe 7.
As shown in fig. 1, the middle part of the tube body of the transmission pipeline 2 is provided with a through port, the middle part of the tube body of the output pipeline 1 is provided with a through port, and the through port in the middle part of the transmission pipeline 2 is communicated with the through port in the middle part of the output pipeline 1.
The middle part of the pipe shaft of output pipeline 1 and the middle part intercommunication of the pipe shaft of transmission pipeline 2 can provide more passageways for the flow of the liquid between output pipeline 1 and transmission pipeline 2, can be so that when the pressure in two pipelines of output pipeline 1 and transmission pipeline 2 is unbalanced, liquid changes in the one side that flows to pressure low from the one side that pressure is high, and then make the distribution of the liquid in output pipeline 1 and transmission pipeline 2 more even, can make liquid change in each liquid outlet 3 of flow direction, further reduction cavitation, the work efficiency of liquid pump is promoted.
The middle part of the pipe body of the output pipeline 1 and the middle part of the pipe body of the transmission pipeline 2 can be communicated by two T-shaped three-way joints, specifically, as shown in fig. 1, the middle part of the output pipeline 1 and the middle part of the transmission pipeline 2 are both provided with one T-shaped three-way joint, and the two T-shaped three-way joints are communicated.
Example two:
the fracturing pump that this embodiment provided includes the pipeline structure in the pump body and the embodiment one, is provided with a plurality of intakes on the pump body. A plurality of inlets of the pump body are communicated with a plurality of liquid outlets 3 in the pipeline structure in a one-to-one correspondence manner.
Because the import of the fracturing pump that this embodiment provided communicates with a plurality of liquid outlets 3 one-to-one in the pipeline structure in embodiment one, therefore liquid can pass through above-mentioned pipeline structure earlier and enter into the pump body when being pumped by this fracturing pump, when liquid passes through above-mentioned pipeline structure, because pipeline structure can make wherein mobile liquid can reach each liquid outlet 3 department above that, therefore cavitation phenomenon when fracturing pump pumping liquid can be reduced, the water absorption efficiency of fracturing pump can be promoted.
The fracturing pump provided by the embodiment comprises the pipeline structure in the first embodiment, so that the same technical problems and the same technical effects can be solved by the fracturing pump provided by the embodiment and the pipeline structure in the first embodiment.
Therefore, the fracturing pump that this embodiment provided has alleviated the in-process that exists among the prior art at the fracturing pump transported liquid, when liquid arrived a plurality of exits of suction line from the import of suction line, because the distance is far away, and liquid easily flows into the hydraulic end from the export of suction line near the import, therefore liquid is difficult for arriving the export of the import of keeping away from of suction line, and then easily leads to the export of the import of keeping away from of suction line to produce the cavitation phenomenon, reduces the technical problem of fracturing pump's water absorption efficiency.
Example three:
the fracturing truck that this embodiment provided includes the fracturing pump in carrier loader and the embodiment two, and the fracturing pump is installed on the carrier loader.
The fracturing truck that this embodiment provided includes the fracturing pump in the second embodiment, therefore the fracturing truck that this embodiment provided and the fracturing pump in the second embodiment can solve the same technical problem, reach the same beneficial effect.
Therefore, the fracturing truck that this embodiment provided has alleviated the in-process that exists among the prior art at fracturing pump delivery liquid, when liquid arrived a plurality of exits of suction line from the import of suction line, because the distance is far away, and liquid easily flows into the hydraulic end from the export of suction line near the import, therefore liquid is difficult for arriving the export of the import of keeping away from of suction line, and then easily leads to the export of the import of keeping away from of suction line to produce the cavitation phenomenon, reduces the technical problem of fracturing pump's water absorption efficiency.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A pipeline structure, characterized in that it comprises a transport pipeline (2) and an output pipeline (1);
the output pipeline (1) comprises two ends, the two ends of the output pipeline (1) are communicated with the transmission pipeline (2), and the transmission pipeline (2) is used for supplying liquid to the output pipeline (1);
along the length direction of output pipeline (1), a plurality of liquid outlets (3) are provided with at intervals on the body of output pipeline (1).
2. A pipe structure according to claim 1, characterized in that the transport pipe (2) comprises two ends, one of the ends of the transport pipe (2) communicating with one of the ends of the output pipe (1), the other end of the transport pipe (2) communicating with the other end of the output pipe (1).
3. A piping structure according to claim 1, characterised in that the axis of the output duct (1) and the axis of the transport duct (2) are both in-line;
the pipeline structure further comprises a first joint (4) and a second joint (5), wherein the first joint (4) is communicated between one end of the output pipeline (1) and one end of the transmission pipeline (2), and the second joint (5) is communicated between the other end of the output pipeline (1) and the other end of the transmission pipeline (2).
4. A pipe structure according to claim 3, characterized in that the first joint (4) comprises a communicating pipe (40) and a shunt pipe (41);
the communicating pipe (40) comprises two nozzles, and the shunt pipe (41) comprises three nozzles;
one of the pipe openings of the shunt pipes (41) is a liquid inlet, the other pipe opening of the shunt pipe (41) is communicated with one end of the transmission pipeline (2), and the last pipe opening of the shunt pipe (41) is communicated with one of the pipe openings of the communicating pipe (40);
the other nozzle of the communicating pipe (40) is communicated with one end of the conveying pipeline (2).
5. The piping structure according to claim 4, wherein the axis of said shunt tube (41) is T-shaped and the axis of said communicating tube (40) is arc-shaped.
6. A pipe structure according to claim 1, characterized in that it further comprises a connection plate (6), said connection plate (6) being provided with a plurality of through holes;
a plurality of the liquid outlet (3) and a plurality of one side one-to-one of through-hole communicates, and is a plurality of the opposite side of through-hole communicates with a plurality of imports one-to-one of the outside pump body.
7. A tube structure according to claim 6, characterized in that the tube structure further comprises an outlet tube (7), the outlet tube (7) being in-line, the liquid outlet (3) being in communication with the through-hole via the outlet tube (7).
8. A pipeline structure according to any one of claims 1-7, characterized in that the middle part of the pipe body of the transport pipeline (2) is provided with a through opening, the middle part of the pipe body of the output pipeline (1) is provided with a through opening, and the through opening in the middle part of the transport pipeline (2) is in communication with the through opening in the middle part of the output pipeline (1).
9. A fracturing pump, characterized in that it comprises a pump body and a pipe structure according to any one of claims 1 to 8, said pump body being provided with a plurality of inlets;
and a plurality of inlets of the pump body are communicated with a plurality of liquid outlets (3) in the pipeline structure in a one-to-one correspondence manner.
10. A fracturing truck comprising a carrier truck and the fracturing pump of claim 9, the fracturing pump being mounted on the carrier truck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921856854.4U CN210715071U (en) | 2019-10-30 | 2019-10-30 | Pipeline structure, fracturing pump and fracturing truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921856854.4U CN210715071U (en) | 2019-10-30 | 2019-10-30 | Pipeline structure, fracturing pump and fracturing truck |
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| Publication Number | Publication Date |
|---|---|
| CN210715071U true CN210715071U (en) | 2020-06-09 |
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| CN201921856854.4U Active CN210715071U (en) | 2019-10-30 | 2019-10-30 | Pipeline structure, fracturing pump and fracturing truck |
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| Country | Link |
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| CN (1) | CN210715071U (en) |
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2019
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