CN111397974A - Sampling protection device and system - Google Patents
Sampling protection device and system Download PDFInfo
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- CN111397974A CN111397974A CN201910001200.1A CN201910001200A CN111397974A CN 111397974 A CN111397974 A CN 111397974A CN 201910001200 A CN201910001200 A CN 201910001200A CN 111397974 A CN111397974 A CN 111397974A
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- 238000005070 sampling Methods 0.000 title claims abstract description 166
- 239000003208 petroleum Substances 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000005494 condensation Effects 0.000 abstract description 5
- 238000009833 condensation Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/20—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
- G01N1/2035—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping
- G01N2001/205—Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials by deviating part of a fluid stream, e.g. by drawing-off or tapping using a valve
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses sampling protection equipment and a sampling protection system, and belongs to the technical field of oil exploitation. The sampling protection device comprises: a base and a valve stem. The base is provided with an oil passing hole, a first sampling hole, a second sampling hole and a valve rod hole, and a conical sealing element in the valve rod can be abutted against the first sampling hole through the valve rod hole; this conical seal spare can also cancel the butt with first thief hole, and the oil in the petroleum pipeline is after oil hole, first thief hole, valve rod hole and second thief hole are crossed in proper order, flows from the second end of this second thief hole to can realize taking a sample the oil in the petroleum pipeline. Because the length of the first sampling hole communicated with the oil passing hole is far smaller than the length of the screw thread short circuit connected with the front end of the sampling valve in the related technology, the probability of the condensation phenomenon of the petroleum in the first sampling hole is lower, so that the fluidity of the petroleum in the first sampling hole is better, and the reliability of a petroleum sampling point is effectively improved.
Description
Technical Field
The invention relates to the technical field of oil exploitation, in particular to sampling protection equipment and a sampling protection system.
Background
In the oil exploitation process, in order to monitor the composition of oil in an oil pipeline, the oil conveyed in the oil pipeline needs to be sampled and detected and analyzed.
In the related art, an oil sampling point on an oil pipeline is generally located at the installation site of a pressure gauge on the oil pipeline. Sampling at an oil sampling point can be generally realized by adopting a sampling valve, and the front end of the sampling valve can be connected with an oil pipeline through a threaded short joint. When the sampling valve is opened, the rear end of the sampling valve can flow out of the petroleum in the petroleum pipeline for sampling; when the sampling valve is closed, the rear end of the sampling valve stops flowing out of the oil.
However, in a low-temperature environment, the fluidity of oil in the screw short circuit connected to the front end of the sampling valve is low, so that the phenomenon of condensation is easy to occur, and the sampling valve cannot perform normal sampling. In addition, the sampling valve is opened by manually twisting the valve handle of the sampling valve, and the sampling valve is easily opened maliciously by illegal personnel, so that a large amount of petroleum is stolen. Therefore, the reliability and safety of the current oil sampling point are low.
Disclosure of Invention
The embodiment of the invention provides sampling protection equipment and a sampling protection system. The problem that the reliability and the safety of the oil sampling point in the prior art are low can be solved, the technical scheme is as follows:
in a first aspect, there is provided a sampling protection device comprising:
the oil through hole is configured to be connected with a petroleum pipeline, the oil through hole is communicated with a first end of the first sampling hole, a second end of the first sampling hole is communicated with a first end of the valve rod hole, a first end of the second sampling hole is communicated with the valve rod hole, and an opening of the second end of the valve rod hole and an opening of the second end of the second sampling hole are both located on the surface of the base;
the length of the valve rod is smaller than that of the valve rod hole, a conical sealing piece is arranged at a first end of the valve rod, a plurality of first groove-shaped structures are arranged at a second end of the valve rod, the valve rod is in threaded connection with the valve rod hole, the valve rod is configured to move in the valve rod hole under the driving of a disassembling tool with a plurality of clamping jaws, the clamping jaws correspond to the first groove-shaped structures in a one-to-one mode, and the conical sealing piece is abutted to the first sampling hole through the valve rod hole;
when the conical sealing piece is not abutted with the first sampling hole, petroleum in the petroleum pipeline flows out of the second end of the second sampling hole after sequentially passing through the oil passing hole, the first sampling hole, the valve rod hole and the second sampling hole.
Optionally, the sampling protection device further includes: the protective sleeve is configured to be sleeved with a pressure gauge, a step structure is arranged on the side wall of the protective sleeve, and an annular clamping groove is arranged on the side wall of the step structure;
the base is also provided with a groove matched with the step structure and a clamping rod hole, the first end of the clamping rod hole is communicated with the groove, and the opening of the second end of the clamping rod hole is positioned on the surface of the base;
the sampling protection device further comprises: the length of joint pole is less than the length in joint pole hole, the first end of joint pole is passed through joint pole hole with joint groove joint.
Optionally, the joint rod with joint rod hole threaded connection, the second end of joint rod is provided with a plurality of second cell type structures, a plurality of second cell type structures with a plurality of first cell type structures one-to-one, and every second cell type structure is the same with the shape of the first cell type structure that corresponds, the joint rod is configured to be in under extracting tool's the drive in the joint rod downthehole removal.
Optionally, the base is further provided with a connecting hole for connecting with the pressure gauge, and the connecting hole is further connected with the oil passing hole.
Optionally, the step structure is a circular step structure, and the groove is a circular groove.
Optionally, the extending direction of the first sampling hole, the extending direction of the valve rod hole and the extending direction of the clamping rod hole are all parallel, the extending direction of the first sampling hole is perpendicular to the extending direction of the oil passing hole, and the extending direction of the second sampling hole is perpendicular to the extending direction of the valve rod hole.
Optionally, the diameter of the first sampling hole is greater than or equal to 8 millimeters, and the length of the first sampling hole is 5-10 millimeters.
Optionally, the base is further provided with two annular protruding structures, the two protruding structures correspond to two ends of the oil passing hole one by one, each protruding structure is located at a position where an opening at one end of the corresponding oil passing hole is located, and the circle center of each protruding structure coincides with the circle center of the oil passing hole;
the sampling protection device further comprises: and the welded pipe is fixedly connected with each protruding structure.
Optionally, the length of the welded pipe is 100 mm.
In a second aspect, there is provided a sampling protection system comprising: sample protection device and extracting tool, sample protection device be the first aspect arbitrary sample protection device, the extracting tool includes: and the clamping jaws correspond to a plurality of first groove-shaped structures arranged at the second end of the valve rod in the sampling protection equipment one by one.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the sampling protection device comprises: a base and a valve stem. The base is provided with an oil passing hole, a first sampling hole, a second sampling hole and a valve rod hole, and a conical sealing element in the valve rod can be abutted against the first sampling hole through the valve rod hole; this conical seal spare can also cancel the butt with first thief hole, and the oil in the petroleum pipeline is after oil hole, first thief hole, valve rod hole and second thief hole are crossed in proper order, flows from the second end of this second thief hole to can realize taking a sample the oil in the petroleum pipeline. Because the length of the first sampling hole communicated with the oil passing hole is far smaller than the length of the screw thread short circuit connected with the front end of the sampling valve in the related technology, the probability of the condensation phenomenon of the petroleum in the first sampling hole is lower, so that the fluidity of the petroleum in the first sampling hole is better, and the reliability of a petroleum sampling point is effectively improved. Because the length of the valve rod is less than the length of the valve rod hole, when sampling is not needed, the conical sealing piece in the valve rod is abutted to the first sampling hole, the valve rod is completely positioned in the valve rod hole, and the valve rod can be moved under the driving of a special dismounting tool with a plurality of clamping jaws, so that illegal personnel can not steal oil in the sampling protection equipment on the premise of no special dismounting tool, and the safety of an oil sampling point is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a sampling protection device according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a valve stem provided by an embodiment of the present invention;
FIG. 3 is a cross-sectional view of FIG. 2 at A-A';
FIG. 4 is a schematic structural diagram of a removal tool provided in accordance with an embodiment of the present invention;
FIG. 5 is a cross-sectional view at A-A' of FIG. 4;
FIG. 6 is a schematic structural diagram of another sampling protection device provided in an embodiment of the present invention;
FIG. 7 is a schematic structural view of a protective sheath according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a clamping rod according to an embodiment of the present invention;
FIG. 9 is a cross-sectional view of FIG. 8 at A-A';
fig. 10 is a top view of a base provided in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a sampling protection device according to an embodiment of the present invention. The sampling protection device 100 may include: a base 10 and a valve stem 20.
The base 10 is provided with an oil passing hole 11, a first sampling hole 12, a second sampling hole 13 and a valve rod hole 14. The oil passing hole 11 is configured to be connected to a petroleum pipeline. In the embodiment of the present invention, the base 10 may be disposed on a petroleum pipeline through the oil passing hole 11, and petroleum flowing in the petroleum pipeline may pass through the oil passing hole 11. The oil passing hole 11 is communicated with a first end of a first sampling hole 12, a second end of the first sampling hole 12 is communicated with a first end of a valve rod hole 13, a first end of a second sampling hole 14 is communicated with the valve rod hole 13, and an opening of the second end of the valve rod hole 13 and an opening of the second end of the second sampling hole 14 are both positioned on the outer surface of the base 10.
The length of the valve stem 20 may be less than the length of the valve stem bore 14. The first end of the valve stem 20 is provided with a conical seal 21 and the second end of the valve stem 20 is provided with a plurality of first channel-type formations (not numbered in figure 1). The valve stem 20 is threadably coupled to the valve stem bore 14, and the valve stem 20 is configured to move within the valve stem bore 14 with a removal tool having a plurality of jaws in a one-to-one correspondence with the plurality of first slot-type structures.
Illustratively, as shown in fig. 2 and 3, fig. 2 is a schematic structural view of a valve stem provided by an embodiment of the present invention, and fig. 3 is a sectional view at a-a' of fig. 2. The conical angle of the conical seal 21 provided on the first end of the valve stem 20 may be 120 degrees. The plurality of first channel-type structures 22 disposed on the second end of the valve stem 20 may be evenly distributed on the valve stem 20.
Referring to fig. 4 and 5, fig. 4 is a schematic structural diagram of a disassembling tool according to an embodiment of the present invention, and fig. 5 is a sectional view taken along line a-a' of fig. 4. The removal tool 200 may include: an arm 201 and a plurality of jaws 202 disposed on the arm 201, each jaw 202 being insertable into a corresponding first channel-type formation 22 in the valve stem 20.
When the valve rod 20 is driven by the disassembling tool to move towards the direction of approaching the oil passing hole 11, the conical sealing piece 21 in the valve rod 20 can be abutted with the first sampling hole 12 through the valve rod hole 14. At this time, the first sampling hole 12 is sealed by the conical seal 21, and the oil in the first sampling hole 12 cannot flow out.
When the valve rod 20 is driven by the disassembling tool to move in the direction away from the oil passing hole 11, the conical sealing member 12 is not in contact with the first sampling hole 21. At this time, after the oil in the oil pipeline passes through the oil passing hole 11, the first sampling hole 12, the valve rod hole 14 and the second sampling hole 13 in sequence, the oil flows out from the second end of the second sampling hole 13, so that the oil in the oil pipeline can be sampled.
In the embodiment of the present invention, since the length of the first sampling hole 12 communicated with the oil passing hole 11 is much shorter than the length of the screw short-circuit connected to the front end of the sampling valve in the related art, for example, the diameter of the first sampling hole 12 may be greater than or equal to 8 mm, the length of the first sampling hole 12 is only 5-10 mm, and the length of the screw short-circuit needs at least 100 mm, the probability of the oil in the first sampling hole 12 being condensed is low, so that the oil in the first sampling hole 12 has good fluidity, and the reliability of the oil sampling point is effectively improved.
And because the length of the valve rod 20 is less than the length of the valve rod hole 14, when sampling is not needed, the conical sealing piece 21 in the valve rod 20 is abutted against the first sampling hole 12, the valve rod 20 is completely positioned in the valve rod hole 14, and the valve rod 20 can move under the driving of a special dismounting tool with a plurality of clamping jaws, so that an illegal person can not steal oil in the sampling protection device on the premise of no special dismounting tool, and the safety of an oil sampling point is effectively improved.
In summary, the sampling protection device in the embodiment of the present invention includes: a base and a valve stem. The base is provided with an oil passing hole, a first sampling hole, a second sampling hole and a valve rod hole, and a conical sealing element in the valve rod can be abutted against the first sampling hole through the valve rod hole; this conical seal spare can also cancel the butt with first thief hole, and the oil in the petroleum pipeline is after oil hole, first thief hole, valve rod hole and second thief hole are crossed in proper order, flows from the second end of this second thief hole to can realize taking a sample the oil in the petroleum pipeline. Because the length of the first sampling hole communicated with the oil passing hole is far smaller than the length of the screw thread short circuit connected with the front end of the sampling valve in the related technology, the probability of the condensation phenomenon of the petroleum in the first sampling hole is lower, so that the fluidity of the petroleum in the first sampling hole is better, and the reliability of a petroleum sampling point is effectively improved. Because the length of the valve rod is less than the length of the valve rod hole, when sampling is not needed, the conical sealing piece in the valve rod is abutted to the first sampling hole, the valve rod is completely positioned in the valve rod hole, and the valve rod can be moved under the driving of a special dismounting tool with a plurality of clamping jaws, so that illegal personnel can not steal oil in the sampling protection equipment on the premise of no special dismounting tool, and the safety of an oil sampling point is effectively improved.
Optionally, as shown in fig. 2, in order to prevent the oil flowing out during sampling from damaging the threaded connection between the valve stem 20 and the valve stem hole, the valve stem 20 may further include: a connecting rod 23 connected to the conical seal 21, and a first threaded rod 24 connected to the connecting rod 23. The diameter of the connecting rod 23 can be smaller than that of the first threaded rod 24, so that the problem that the valve rod 20 cannot move due to the fact that oil is adhered to the inner wall of the valve rod hole is effectively solved.
Typically, an oil sampling point on an oil pipeline is typically located at the installation of a pressure gauge on the oil pipeline, which also risks being stolen. In order to avoid theft of the pressure gauge, the sampling protection device may further include: and (6) a protective sleeve.
As shown in fig. 6, fig. 6 is a schematic structural diagram of another sampling protection device according to an embodiment of the present invention. The sheath 30 is configured to be received over the pressure gauge 300. Optionally, the base 20 may further be provided with a connection hole 17 for connecting with the pressure gauge 300, the connection hole 17 may further be communicated with the oil passing hole 11, and oil in the oil passing hole 11 may flow to the pressure gauge 300 through the connection hole 17, so that the pressure gauge 300 may check the pressure of the oil conveyed in the oil pipeline.
The protective sheath 30 is provided with a step structure 31 on the sidewall. To more clearly see the structure of the protective sheath 30, please refer to fig. 7, in which fig. 7 is a schematic structural diagram of a protective sheath according to an embodiment of the present invention. The side wall of the step structure 31 is provided with an annular clamping groove 32. Illustratively, the step structure 31 may be a circular step structure, and the annular engaging groove 32 may be an annular engaging groove.
As shown in fig. 6, the base 10 is further provided with a groove 15 engaged with the step structure 31, and a clamping rod hole 16, a first end of the clamping rod hole 16 is communicated with the groove 15, and an opening of a second end of the clamping rod hole 16 is located on an outer surface of the base 10. For example, if the step structure 31 may be a circular step structure, the groove 15 is also a circular groove. The sampling protection device 100 may further include: and a clamping rod 40, wherein the length of the clamping rod 40 is less than that of the clamping rod hole 16, and a first end of the clamping rod 40 is clamped with the annular clamping groove 32 through the clamping rod hole 16.
Alternatively, the clamping rod 40 may be threadedly coupled to the clamping rod hole 16, and the second end of the clamping rod 40 is provided with a plurality of second groove-shaped structures, which correspond to the plurality of first groove-shaped structures in the valve rod 20 one-to-one, and each of the second groove-shaped structures has the same shape as the corresponding first groove-shaped structure. Illustratively, as shown in fig. 8 and 9, fig. 8 is a schematic structural view of a clamping bar provided by an embodiment of the present invention, and fig. 9 is a sectional view taken at a-a' of fig. 8. The second end of the clamping bar 40 is provided with a plurality of second groove-shaped structures 41 which can be uniformly distributed on the clamping bar 40.
A removal tool 200 with a plurality of jaws 202 as described in fig. 4 may be used to move the clamping bar 40 within the clamping bar aperture 16. If the protection sleeve 30 is installed in the groove 15 of the base 20 through the step structure 31, after the disassembling tool drives the clamping rod 40 to move toward the direction close to the groove 15, the first end of the clamping rod 40 can pass through the annular clamping groove 32 and be clamped with the annular clamping groove 32. Because the length of joint pole 40 is less than the length of joint pole hole 16, this joint pole 40 just can remove under the drive of the special extracting tool that has a plurality of jack catchs, consequently, illegal personnel can't dismantle joint pole 40 under the prerequisite that does not have special extracting tool, and then make protective sheath 30 also can't dismantle from base 10, the effectual manometer 200 of having avoided is maliciously stolen by illegal personnel.
Alternatively, as shown in fig. 8, the clamping rod 40 may include a polished rod 40a and a second threaded rod 40b, and the polished rod 40a of the clamping rod 40 may be clamped in the annular clamping groove, which effectively simplifies the clamping difficulty between the clamping rod 40 and the annular clamping groove.
Optionally, referring to fig. 6 and 10, fig. 10 is a top view of a base provided in an embodiment of the present application, in which an extending direction of the first sampling hole 12, an extending direction of the valve rod hole 14, and an extending direction of the clamping rod hole 16 are all parallel, the extending direction of the first sampling hole 12 is perpendicular to the extending direction of the oil passing hole 11, and the extending direction of the second sampling hole 13 is perpendicular to the extending direction of the valve rod hole 14.
In order to facilitate the installation of the sampling protection device on the petroleum pipeline, as shown in fig. 10, the base 10 may further include two annular protruding structures 18, the two protruding structures 18 correspond to two ends of the oil passing hole 11 one to one, each protruding structure 18 is located at an opening of one end of the corresponding oil passing hole 11, and a circle center of the protruding structure 18 coincides with a circle center of the oil passing hole 11. The sampling protection device further comprises: a welded tube 50 fixedly connected to each raised formation 18. The welded tube had a length of 100 mm.
Each welded pipe 50 can be welded with the corresponding protruding structure 18, so that each welded pipe 50 is connected with the oil passing hole 11, and the butt joint between the welded pipe 50 and the petroleum pipeline is simple, so that the process of the sampling protection equipment on the petroleum pipeline through the welded pipe 50 is simple.
In summary, the sampling protection device in the embodiment of the present invention includes: a base and a valve stem. The base is provided with an oil passing hole, a first sampling hole, a second sampling hole and a valve rod hole, and a conical sealing element in the valve rod can be abutted against the first sampling hole through the valve rod hole; this conical seal spare can also cancel the butt with first thief hole, and the oil in the petroleum pipeline is after oil hole, first thief hole, valve rod hole and second thief hole are crossed in proper order, flows from the second end of this second thief hole to can realize taking a sample the oil in the petroleum pipeline. Because the length of the first sampling hole communicated with the oil passing hole is far smaller than the length of the screw thread short circuit connected with the front end of the sampling valve in the related technology, the probability of the condensation phenomenon of the petroleum in the first sampling hole is lower, so that the fluidity of the petroleum in the first sampling hole is better, and the reliability of a petroleum sampling point is effectively improved. Because the length of the valve rod is less than the length of the valve rod hole, when sampling is not needed, the conical sealing piece in the valve rod is abutted to the first sampling hole, the valve rod is completely positioned in the valve rod hole, and the valve rod can be moved under the driving of a special dismounting tool with a plurality of clamping jaws, so that illegal personnel can not steal oil in the sampling protection equipment on the premise of no special dismounting tool, and the safety of an oil sampling point is effectively improved.
An embodiment of the present invention further provides a sampling protection system, where the sampling protection system may include: a sampling protection device and a removal tool. The sampling protection device may be the sampling protection device shown in fig. 1 or fig. 6, and the removal tool may be the removal tool shown in fig. 4. The removal tool 200 includes: and a plurality of claws 202, wherein the claws 202 correspond to a plurality of first groove-shaped structures arranged at the second end of the valve rod 20 in the sampling protection device 100 one by one.
The above description is only exemplary of the present invention and should not be taken as limiting, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A sampling protection device, comprising:
the oil through hole is configured to be connected with a petroleum pipeline, the oil through hole is communicated with a first end of the first sampling hole, a second end of the first sampling hole is communicated with a first end of the valve rod hole, a first end of the second sampling hole is communicated with the valve rod hole, and an opening of the second end of the valve rod hole and an opening of the second end of the second sampling hole are both located on the surface of the base;
the length of the valve rod is smaller than that of the valve rod hole, a conical sealing piece is arranged at a first end of the valve rod, a plurality of first groove-shaped structures are arranged at a second end of the valve rod, the valve rod is in threaded connection with the valve rod hole, the valve rod is configured to move in the valve rod hole under the driving of a disassembling tool with a plurality of clamping jaws, the clamping jaws correspond to the first groove-shaped structures in a one-to-one mode, and the conical sealing piece is abutted to the first sampling hole through the valve rod hole;
when the conical sealing piece is not abutted with the first sampling hole, petroleum in the petroleum pipeline flows out of the second end of the second sampling hole after sequentially passing through the oil passing hole, the first sampling hole, the valve rod hole and the second sampling hole.
2. The sampling protection device of claim 1,
the sampling protection device further comprises: the protective sleeve is configured to be sleeved with a pressure gauge, a step structure is arranged on the side wall of the protective sleeve, and an annular clamping groove is arranged on the side wall of the step structure;
the base is also provided with a groove matched with the step structure and a clamping rod hole, the first end of the clamping rod hole is communicated with the groove, and the opening of the second end of the clamping rod hole is positioned on the surface of the base;
the sampling protection device further comprises: the length of joint pole is less than the length in joint pole hole, the first end of joint pole is passed through joint pole hole with joint groove joint.
3. The sampling protection device of claim 2,
the joint pole with joint pole hole threaded connection, the second end of joint pole is provided with a plurality of second cell type structures, a plurality of second cell type structures with a plurality of first cell type structure one-to-one, and every second cell type structure is the same with the shape of the first cell type structure that corresponds, the joint pole is configured to be in under extracting tool's the drive in the joint pole downthehole removal.
4. The sampling protection device of claim 2,
the base is further provided with a connecting hole used for being connected with the pressure gauge, and the connecting hole is further connected with the oil passing hole.
5. The sampling protection device of claim 2,
the step structure is a circular step structure, and the groove is a circular groove.
6. The sampling protection device of claim 2,
the extending direction of the first sampling hole, the extending direction of the valve rod hole and the extending direction of the clamping rod hole are all parallel, the extending direction of the first sampling hole is perpendicular to the extending direction of the oil passing hole, and the extending direction of the second sampling hole is perpendicular to the extending direction of the valve rod hole.
7. The sampling protection device of claim 1,
the diameter of first thief hole is more than or equal to 8 millimeters, the length of first thief hole is 5 ~ 10 millimeters.
8. Sampling protection device according to one of claims 1 to 7,
the base is also provided with two annular protruding structures, the two protruding structures correspond to two ends of the oil passing hole one by one, each protruding structure is located at the position of an opening at one end of the corresponding oil passing hole, and the circle center of each protruding structure is superposed with the circle center of the oil passing hole;
the sampling protection device further comprises: and the welded pipe is fixedly connected with each protruding structure.
9. The sampling protection device of claim 8,
the length of the welded pipe is 100 mm.
10. A sampling protection system, comprising: a sampling protection device according to any one of claims 1 to 9 and a removal tool comprising: and the clamping jaws correspond to a plurality of first groove-shaped structures arranged at the second end of the valve rod in the sampling protection equipment one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910001200.1A CN111397974B (en) | 2019-01-02 | 2019-01-02 | Sampling protection device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910001200.1A CN111397974B (en) | 2019-01-02 | 2019-01-02 | Sampling protection device and system |
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| Publication Number | Publication Date |
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| CN111397974A true CN111397974A (en) | 2020-07-10 |
| CN111397974B CN111397974B (en) | 2023-03-24 |
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| CN201910001200.1A Active CN111397974B (en) | 2019-01-02 | 2019-01-02 | Sampling protection device and system |
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| CN208934654U (en) * | 2018-09-17 | 2019-06-04 | 孟剑锋 | A kind of freeze-proof anti-theft pressure-taking sampling valve |
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| CN111397974B (en) | 2023-03-24 |
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