CN112781784A - Pressure testing device for high-pressure oil pipe - Google Patents
Pressure testing device for high-pressure oil pipe Download PDFInfo
- Publication number
- CN112781784A CN112781784A CN202011519547.4A CN202011519547A CN112781784A CN 112781784 A CN112781784 A CN 112781784A CN 202011519547 A CN202011519547 A CN 202011519547A CN 112781784 A CN112781784 A CN 112781784A
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- hole
- pressure
- oil pipe
- bolt
- ferrule
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- 238000012360 testing method Methods 0.000 title claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 239000000446 fuel Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 15
- 238000007789 sealing Methods 0.000 abstract description 13
- 238000009434 installation Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 86
- 238000012546 transfer Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
Abstract
The invention discloses a pressure testing device for a high-pressure oil pipe, wherein the high-pressure oil pipe is provided with a pipe wall through hole, the high-pressure oil pipe is provided with a circular ring-shaped contact surface extending along the circumferential direction of the high-pressure oil pipe at a position close to the pipe wall through hole, and the pressure testing device comprises a first clamping sleeve and a second clamping sleeve. The first clamping sleeve is provided with a first abutting surface in a circular arc shape, the second clamping sleeve is provided with a second abutting surface in a circular arc shape, the first abutting surface and the second abutting surface can abut against a contact surface, the first clamping sleeve is further provided with a detection through hole corresponding to the position of the pipe wall through hole, the first clamping sleeve is further provided with an installation through hole used for installing a pressure testing device, the installation through hole corresponds to the position of the detection through hole, and the pressure testing device can detect the pressure of the high-pressure oil pipe through the detection through hole and the pipe wall through hole. Therefore, the oil in the high-pressure oil pipe passes through the pipe wall through hole and the detection through hole contact pressure testing device, the sealing effect is effectively improved, and oil leakage is avoided.
Description
Technical Field
The invention relates to the technical field of diesel engine detection equipment, in particular to a pressure testing device for a high-pressure oil pipe.
Background
In the working process of the diesel engine, fuel oil passes through a high-pressure oil pipe from a high-pressure oil pump, is conveyed to an oil injector arranged on the diesel engine, and then is injected into a cylinder of the diesel engine to be compressed and combusted. In order to control the operating state of the diesel engine more accurately, it is necessary to know the pressure of the fuel in the high-pressure fuel line in real time.
In the prior art, in order to obtain the dynamic pressure in the high-pressure oil pipe, usually, a lug is welded on the high-pressure oil pipe or a transfer block is installed on the high-pressure oil pipe, and then a pressure sensor is installed on the lug or the transfer block, so as to obtain the pressure in the high-pressure oil pipe. However, when the lug is welded on the high-pressure oil pipe, the welded part is easy to produce undercut, weld beading, air holes and the like, which not only easily causes oil leakage, but also may affect the flow field distribution in the high-pressure oil pipe, causing test distortion; when the adapter block is installed on the high-pressure oil pipe, the overall structure of the high-pressure oil pipe needs to be changed, the three-way effect is caused, the flow field distribution in the high-pressure oil pipe is also influenced, and the test distortion is caused.
Therefore, there is a need to provide a pressure testing device for a high pressure tubing that at least partially addresses the above-mentioned problems.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
The invention provides a pressure testing device for a high-pressure oil pipe, wherein the high-pressure oil pipe is provided with a pipe wall through hole, the high-pressure oil pipe is provided with a circular ring-shaped contact surface extending along the circumferential direction of the high-pressure oil pipe at a position close to the pipe wall through hole, and the pressure testing device comprises:
the first clamping sleeve is provided with a first abutting surface which can abut against the contact surface, the first abutting surface is in an arc shape, and the first clamping sleeve is further provided with a detection through hole corresponding to the position of the pipe wall through hole; and
a second ferrule provided with a second abutment surface abuttable to the contact surface, the second abutment surface configured in an arc shape;
the first clamping sleeve is further provided with a mounting through hole for mounting a pressure sensor, the mounting through hole corresponds to the detection through hole in position, and the pressure sensor can detect the pressure of the high-pressure oil pipe through the detection through hole and the pipe wall through hole.
Optionally, the first cutting ferrule and the second cutting ferrule are fixedly connected to the high-pressure oil pipe through a first bolt and a second bolt which are arranged on two sides of the high-pressure oil pipe, and the first bolt and the second bolt are arranged in parallel.
Optionally, one side of the first ferrule, which is away from the second ferrule, is provided with a ferrule top surface capable of contacting the first bolt and the second bolt, and the ferrule top surface is perpendicular to the axial direction of the detection through hole.
Optionally, when a high pressure tubing is clamped between the first abutment surface and the second abutment surface, a ratio between a distance between a centerline of the first bolt and a centerline of the second bolt and a distance between the ferrule top surface and the centerline of the high pressure tubing is 1.25 to 1.3.
Optionally, both sides of the first sleeve are respectively provided with a first through hole and a second through hole for the first bolt and the second bolt to pass through, and both sides of the second sleeve are respectively provided with a first threaded hole and a second threaded hole for connecting the first bolt and the second bolt.
Optionally, a center line of the first bolt, a center line of the second bolt, and a center line of the detection through hole are located in the same plane.
Optionally, the inner diameter of the first abutment surface is larger than the outer diameter of the contact surface; and/or
The inner diameter of the second abutting surface is larger than the outer diameter of the contact surface.
Optionally, the bottom surface of the mounting through hole is configured as a plane, and the bottom surface of the mounting through hole is perpendicular to the axial direction of the detection through hole.
Optionally, an arc-shaped first boss is arranged on one side, close to the high-pressure oil pipe, of the first ferrule, and the first abutting surface is arranged on the first boss; and/or
And one side of the second clamping sleeve, which is close to the high-pressure oil pipe, is provided with an arc-shaped second boss, and the second abutting surface is arranged on the second boss.
Optionally, the rigidity of the material constituting the first ferrule and/or the second ferrule is less than the rigidity of the pipe wall of the high-pressure oil pipe.
The pressure testing device can be sleeved on a high-pressure oil pipe with a pipe wall through hole, can accurately detect the pressure in the high-pressure oil pipe, can reduce the damage to the high-pressure oil pipe compared with a welding lug or an installation transfer block, and can influence the flow field distribution in the high-pressure oil pipe as little as possible. In addition, the first abutting surface of the first clamping sleeve directly contacts the contact surface of the high-pressure oil pipe, so that oil in the high-pressure oil pipe contacts the pressure sensor through the pipe wall through hole and the detection through hole, the sealing effect is effectively improved, and oil leakage is avoided.
Drawings
The following drawings of the invention are included to provide a further understanding of the invention. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
In the drawings:
FIG. 1 is an exploded view of a pressure testing device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the pressure testing apparatus shown in FIG. 1;
FIG. 3 is a schematic structural view of the high pressure oil pipe shown in FIG. 1;
FIG. 4 is a schematic perspective view of the pressure testing apparatus shown in FIG. 1; and
fig. 5 is a front view of the pressure testing apparatus shown in fig. 1.
Description of reference numerals:
110: first ferrule 111: first abutting surface
112: the detection through hole 113: mounting through hole
114: ferrule top surface 115: first boss
116: first through hole 117: second through hole
120: second ferrule 121: second abutting surface
122: first bolt hole 123: second bolt hole
124: second bosses 131: first bolt
132: second bolt 140: high-pressure oil pipe
141: tube wall through hole 142: contact surface
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in detail so as not to obscure the embodiments of the invention.
It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art. In the drawings, the same reference numerals are used to designate the same elements for the sake of clarity, and thus their description will be omitted.
The invention provides a pressure testing device for a high-pressure oil pipe, which can be sleeved on the high-pressure oil pipe of a diesel engine and can accurately detect the pressure in the high-pressure oil pipe through a through hole on the high-pressure oil pipe. Hereinafter, the pressure test apparatus according to the present invention will be further described with reference to the accompanying drawings.
In one embodiment according to the present invention, a pressure testing device for a high pressure tubing 140 is provided that is capable of pressure testing the high pressure tubing 140 shown in fig. 3. As shown in fig. 3, a pipe wall through hole 141 is formed in a pipe wall of the high pressure oil pipe 140, and the pipe wall through hole 141 may extend in a radial direction of a cross section of the high pressure oil pipe 140. Further, in order to enable more effective contact with the pressure test device, the high-pressure oil pipe 140 is provided with an annular contact surface 142 extending in the circumferential direction of the high-pressure oil pipe 140 at a position close to the pipe wall through hole 141.
As shown in fig. 1 to 5, the pressure testing apparatus includes a first cutting ferrule 110 and a second cutting ferrule 120, and the first cutting ferrule 110 and the second cutting ferrule 120 can be fixedly connected to the high-pressure oil pipe 140 from two sides of the high-pressure oil pipe 140 in a sleeving manner. The first ferrule 110 is provided with a first abutting surface 111, and the first abutting surface 111 is configured in a circular arc shape so as to be matched with the annular contact surface 142. The second ferrule 120 is provided with a second abutment surface 121, the second abutment surface 121 likewise being configured in a circular arc shape in order to effectively abut against the contact surface 142. Therefore, when the first ferrule 110 and the second ferrule 120 are fixed to the high-pressure oil pipe 140, the first abutting surface 111 and the second abutting surface 121 can be fully abutted and attached to the annular contact surface 142 of the high-pressure oil pipe 140, and a sufficient fixing and sealing effect between the pressure testing device and the high-pressure oil pipe 140 is ensured.
Further, in order to enable the first abutment surface 111 and the second abutment surface 121 to effectively abut against the contact surface 142, the width of the contact surface 142 in the axial direction of the high-pressure oil pipe 140 is equal to or slightly larger than the width of the first abutment surface 111 and the second abutment surface 121. Moreover, in order to ensure a sufficient sealing effect between the first and second abutment surfaces 111, 121 and the contact surface 142, the roughness of the first and second abutment surfaces 111, 121 and the contact surface 142 is kept uniform.
As shown in fig. 1 and 2, the first cutting ferrule 110 is further provided with a detection through hole 112, and the position of the detection through hole 112 corresponds to the position of the pipe wall through hole 141 on the high-pressure oil pipe 140. In this embodiment, after the first ferrule 110 and the second ferrule 120 are fixedly coupled to the high pressure oil pipe 140, the detection through hole 112 and the pipe wall through hole 141 are fluidly coupled. Preferably, the center line of the detection through hole 112 and the center line of the pipe wall through hole 141 overlap. In one implementation, the inner diameter of the detection through hole 112 is substantially equal to the inner diameter of the pipe wall through hole 141, for example, the inner diameters of the detection through hole 112 and the pipe wall through hole 141 may be configured as through holes with an inner diameter of 1.5 mm.
Further, the first ferrule 110 is further provided with a mounting through hole 113 for mounting the pressure sensor, and the position of the mounting through hole 113 corresponds to the position of the detection through hole 112. In the present embodiment, when the pressure sensor is mounted to the mounting through hole 113 of the first ferrule 110, the detection portion of the pressure sensor can approach the detection through hole 112, and when the pressure test device is mounted to the high pressure oil pipe 140, the oil in the high pressure oil pipe 140 can reach the detection portion of the pressure sensor via the pipe wall through hole 141 and the detection through hole 112, and the pressure sensor can thereby detect the pressure in the high pressure oil pipe 140.
The pressure testing device can be sleeved on the high-pressure oil pipe 140 with the pipe wall through hole 141, can accurately detect the pressure in the high-pressure oil pipe 140, can reduce the damage to the high-pressure oil pipe 140 compared with welding lugs or installing a switching block, and can influence the flow field distribution in the high-pressure oil pipe 140 as little as possible. In addition, the first abutting surface 111 of the first sleeve 110 directly contacts the contact surface 142 of the high-pressure oil pipe 140, so that oil in the high-pressure oil pipe 140 contacts the pressure sensor through the pipe wall through hole 141 and the detection through hole 112, the sealing effect is effectively improved, and oil leakage is avoided.
Further, first ferrule 110 and second ferrule 120 may be secured together by a bolted connection. In the present embodiment, as shown in fig. 1 and 2, the first ferrule 110 and the second ferrule 120 may be fixedly connected by the first bolt 131 and the second bolt 132 disposed at both sides of the high pressure oil pipe 140 so as to be sleeved outside the high pressure oil pipe 140. Preferably, the first bolt 131 and the second bolt 132 are disposed in parallel. More preferably, in order to ensure that the first abutting surface 111 and the second abutting surface 121 can be effectively attached to the contact surface 142, so that the pressure sensor can accurately detect the pressure in the high-pressure oil pipe 140, the center line of the first bolt 131, the center line of the second bolt 132, and the center line of the detection through hole 112 are located in the same plane.
As shown in fig. 5, a side of first ferrule 110 distal to second ferrule 120 is provided with a ferrule top surface 114. In this embodiment, after the first ferrule 110 and the second ferrule 120 are fixedly connected by the first bolt 131 and the second bolt 132, the head of the first bolt 131 and the head of the second bolt 132 abut against the ferrule top surface 114, respectively. Preferably, in order to ensure the mounting effect of the first bolt 131 and the second bolt 132, the ferrule top surface 114 may be perpendicular to the axial direction of the detection through hole 112.
Further, in order to improve the fixing effect of the pressure testing device to the high pressure oil pipe 140, in the present embodiment, as shown in fig. 5, when the high pressure oil pipe 140 is clamped between the first abutment surface 111 and the second abutment surface 121, the ratio between the distance a between the center line of the first bolt 131 and the center line of the second bolt 132 and the distance B between the ferrule top surface 114 and the center line of the high pressure oil pipe 140 is 1.25 to 1.3. Therefore, the acting force generated by the bolt moment can be more concentrated on the sealing positions of the clamping sleeve and the high-pressure oil pipe 140. That is, when the first and second ferrules 110 and 120 are fixedly connected to the high pressure oil pipe 140, the ratio of the distance between the center lines of the first and second abutment surfaces 111 and 121 to the distance between the center line of the high pressure oil pipe 140 and the ferrule top surface 114 is 1.25 to 1.3.
Specifically, in order to conveniently mount the first bolt 131 and the second bolt 132, as shown in fig. 1 and 2, the first ferrule 110 is provided with a first through hole 116 and a second through hole 117 at opposite sides thereof, the first through hole 116 and the second through hole 117 are perpendicular to the ferrule top surface 114, and the mounting through hole 113 is disposed between the first through hole 116 and the second through hole 117. The two opposite sides of the second ferrule 120 are respectively provided with a first bolt hole 122 and a second bolt hole 123, wherein the first bolt hole 122 and the second bolt hole 123 correspond to the first through hole 116 and the second through hole 117, respectively.
Therefore, in the present embodiment, when it is required to fix the first ferrule 110 and the second ferrule 120 to the high-pressure oil pipe 140, the rod portion of the first bolt 131 passes through the first through hole 116 and is then screwed with the first bolt hole 122, the rod portion of the second bolt 132 passes through the second through hole 117 and is then screwed with the second bolt hole 123, and the first bolt 131 and the second bolt 132 are rotated by a torque wrench or the like, so as to fix the first ferrule 110 and the second ferrule 120 to the high-pressure oil pipe 140, and simultaneously, the first bolt 131 and the second bolt 132 are subjected to substantially the same force, so that the first abutting surface 111 and the second abutting surface 121 respectively have good contact with the contact surface 142 of the high-pressure oil pipe 140, and it is ensured that there is sufficient contact and sealing effects between the high-pressure oil pipe 140 and the pressure testing device.
Further, the inner diameter of the first abutment surface 111 may be larger than the outer diameter of the contact surface 142, and the inner diameter of the second abutment surface 121 may be larger than the outer diameter of the contact surface 142. Therefore, when the first cutting sleeve 110 and the second cutting sleeve 120 are fixed to the high-pressure oil pipe 140 through bolts, the contact areas of the pipe wall through hole 141 and the detection through hole 112 can be sufficiently attached to ensure sealing and prevent oil leakage.
Further, the stiffness of the material comprising the first ferrule 110 and the second ferrule 120 may be slightly less than the stiffness of the wall of the high pressure tubing 140. Thus, when the first and second ferrules 110 and 120 are fixed to the high-pressure oil pipe 140 by bolts, the first and second abutting surfaces 111 and 121 can be partially deformed, thereby increasing the effect of adhesion to the contact surface 142 of the high-pressure oil pipe 140 and further improving the sealing effect.
In order to increase the contact effect between the clamping sleeve and the high-pressure oil pipe 140, reduce the processing difficulty and ensure the processing precision, in the embodiment, a boss structure is further arranged on the clamping sleeve. Specifically, as shown in fig. 4, the first ferrule 110 is provided with a first boss 115 having an arc shape on a side close to the high-pressure oil pipe 140, and the first abutment surface 111 is provided on the first boss 115. Correspondingly, one side of the second ferrule 120 close to the high-pressure oil pipe 140 is provided with an arc-shaped second boss 124, and the second contact surface 121 is provided on the second boss 124. As an implementation manner, taking the first sleeve 110 as an example, the width of the first sleeve 110 in the axial direction of the high-pressure oil pipe 140 may be 13 mm, the first sleeve 110 is provided with a sleeve inner wall having an inner diameter of 15 mm on a side facing the high-pressure oil pipe 140, the sleeve inner wall is provided with a first boss 115 having an inner diameter of 13.2 mm and a width of 6 mm, and the first abutting surface 111 is an inner wall of the first boss 115.
In addition, a thin gasket can be arranged between the first abutting surface 111 and the contact surface 142 and between the second abutting surface 121 and the contact surface 142, so that the problem of roughness between the abutting surface and the contact surface 142 is solved, a better attaching effect is achieved, and the sealing performance is improved.
In order to ensure a sufficient sealing effect between the pressure sensor and the first sleeve 110 and prevent oil from leaking through a gap between the pressure sensor and the inner wall forming the mounting through hole 113, in the present embodiment, a sealing structure is correspondingly provided at the bottom of the mounting through hole 113.
Specifically, as shown in fig. 2, the bottom surface of the mounting through-hole 113 is configured as a plane, while the bottom surface is perpendicular to the axial direction of the detection through-hole 112. Thus, in the process of mounting the pressure sensor, a gasket may be provided between the end of the pressure sensor and the bottom surface of the mounting through-hole 113, and the gasket may be used to improve the sealing effect between the pressure sensor and the mounting through-hole 113. As one implementation, the perpendicularity between the bottom surface of the mounting through-hole 113 and the detection through-hole 112 is 0.05, and the requirement of the roughness of the bottom surface of the mounting through-hole 113 is ra 1.6.
The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the invention to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a pressure test device for high pressure fuel pipe, its characterized in that, high pressure fuel pipe is provided with the pipe wall through-hole, high pressure fuel pipe is being close to the position of pipe wall through-hole is provided with the edge the annular contact surface of ring that high pressure fuel pipe's circumferential direction extends, pressure test device includes:
the first clamping sleeve is provided with a first abutting surface which can abut against the contact surface, the first abutting surface is in an arc shape, and the first clamping sleeve is further provided with a detection through hole corresponding to the position of the pipe wall through hole; and
a second ferrule provided with a second abutment surface abuttable to the contact surface, the second abutment surface configured in an arc shape;
the first clamping sleeve is further provided with a mounting through hole for mounting a pressure sensor, the mounting through hole corresponds to the detection through hole in position, and the pressure sensor can detect the pressure of the high-pressure oil pipe through the detection through hole and the pipe wall through hole.
2. The pressure testing device for a high pressure oil pipe of claim 1, wherein the first ferrule and the second ferrule are fixedly connected with the high pressure oil pipe by a first bolt and a second bolt arranged on two sides of the high pressure oil pipe, and the first bolt and the second bolt are arranged in parallel.
3. The pressure testing device for the high-pressure oil pipe as claimed in claim 2, wherein a side of the first ferrule remote from the second ferrule is provided with a ferrule top surface capable of contacting the first bolt and the second bolt, the ferrule top surface being perpendicular to an axial direction of the detection through hole.
4. The pressure testing device for a high pressure tubing of claim 3, wherein a ratio between a distance between a centerline of the first bolt and a centerline of the second bolt and a distance between the ferrule top surface and the centerline of the high pressure tubing is 1.25 to 1.3 when the high pressure tubing is clamped between the first abutment surface and the second abutment surface.
5. The pressure testing device for the high-pressure oil pipe as claimed in claim 2, wherein a first through hole and a second through hole for the first bolt and the second bolt to pass through are respectively provided at both sides of the first ferrule, and a first threaded hole and a second threaded hole for connecting the first bolt and the second bolt are respectively provided at both sides of the second ferrule.
6. The pressure testing device for the high pressure oil pipe according to claim 2, wherein the center line of the first bolt, the center line of the second bolt and the center line of the detection through hole are located in the same plane.
7. The pressure testing device for a high pressure tubing of claim 1, wherein an inner diameter of the first abutment surface is larger than an outer diameter of the contact surface; and/or
The inner diameter of the second abutting surface is larger than the outer diameter of the contact surface.
8. The pressure test apparatus for a high pressure oil pipe according to claim 1, wherein a bottom surface of the mounting through-hole is configured as a plane, the bottom surface of the mounting through-hole being perpendicular to an axial direction of the detection through-hole.
9. The pressure testing device for the high-pressure oil pipe according to claim 1, wherein a side of the first ferrule close to the high-pressure oil pipe is provided with a circular-arc-shaped first boss, and the first abutting surface is arranged on the first boss; and/or
And one side of the second clamping sleeve, which is close to the high-pressure oil pipe, is provided with an arc-shaped second boss, and the second abutting surface is arranged on the second boss.
10. The pressure testing device for a high pressure tubing of claim 1, wherein a stiffness of a material comprising the first ferrule and/or the second ferrule is less than a stiffness of a wall of the high pressure tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011519547.4A CN112781784A (en) | 2020-12-21 | 2020-12-21 | Pressure testing device for high-pressure oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011519547.4A CN112781784A (en) | 2020-12-21 | 2020-12-21 | Pressure testing device for high-pressure oil pipe |
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| Publication Number | Publication Date |
|---|---|
| CN112781784A true CN112781784A (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011519547.4A Pending CN112781784A (en) | 2020-12-21 | 2020-12-21 | Pressure testing device for high-pressure oil pipe |
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|---|---|---|---|---|
| US4840068A (en) * | 1988-03-14 | 1989-06-20 | Mayhew Jr John D | Pipe pressure sensor |
| CN2101227U (en) * | 1991-08-22 | 1992-04-08 | 上海柴油机厂 | Clipping type pressure measurer for fuel pressure pipe |
| CN201548374U (en) * | 2009-09-25 | 2010-08-11 | 中国北车集团大连机车车辆有限公司 | Fixture for testing high-pressure oil tube |
| CN103698082A (en) * | 2013-12-12 | 2014-04-02 | 东北石油大学 | Oil extraction screw pump cavity pressure measurement device and measurement method |
| CN106594278A (en) * | 2016-11-30 | 2017-04-26 | 河北华北柴油机有限责任公司 | High-pressure oil pipe testing clamp sealing pad |
| CN107796560A (en) * | 2017-11-21 | 2018-03-13 | 嘉兴学院 | A kind of sensor for measuring diesel engine high-pressure fuel conduit pressure |
| CN207395954U (en) * | 2017-11-21 | 2018-05-22 | 嘉兴学院 | A kind of sensor for measuring diesel engine high-pressure fuel conduit pressure |
| CN110702288A (en) * | 2019-10-17 | 2020-01-17 | 天津大学 | Packing sealing contact pressure measuring device and method |
| CN210637801U (en) * | 2019-08-28 | 2020-05-29 | 浙江越达交通工程有限公司 | Pressure detection device for grease pump |
-
2020
- 2020-12-21 CN CN202011519547.4A patent/CN112781784A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4840068A (en) * | 1988-03-14 | 1989-06-20 | Mayhew Jr John D | Pipe pressure sensor |
| CN2101227U (en) * | 1991-08-22 | 1992-04-08 | 上海柴油机厂 | Clipping type pressure measurer for fuel pressure pipe |
| CN201548374U (en) * | 2009-09-25 | 2010-08-11 | 中国北车集团大连机车车辆有限公司 | Fixture for testing high-pressure oil tube |
| CN103698082A (en) * | 2013-12-12 | 2014-04-02 | 东北石油大学 | Oil extraction screw pump cavity pressure measurement device and measurement method |
| CN106594278A (en) * | 2016-11-30 | 2017-04-26 | 河北华北柴油机有限责任公司 | High-pressure oil pipe testing clamp sealing pad |
| CN107796560A (en) * | 2017-11-21 | 2018-03-13 | 嘉兴学院 | A kind of sensor for measuring diesel engine high-pressure fuel conduit pressure |
| CN207395954U (en) * | 2017-11-21 | 2018-05-22 | 嘉兴学院 | A kind of sensor for measuring diesel engine high-pressure fuel conduit pressure |
| CN210637801U (en) * | 2019-08-28 | 2020-05-29 | 浙江越达交通工程有限公司 | Pressure detection device for grease pump |
| CN110702288A (en) * | 2019-10-17 | 2020-01-17 | 天津大学 | Packing sealing contact pressure measuring device and method |
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Application publication date: 20210511 |