CN117030349A - Geothermal fluid airtight sampling device - Google Patents
Geothermal fluid airtight sampling device Download PDFInfo
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- CN117030349A CN117030349A CN202311179352.3A CN202311179352A CN117030349A CN 117030349 A CN117030349 A CN 117030349A CN 202311179352 A CN202311179352 A CN 202311179352A CN 117030349 A CN117030349 A CN 117030349A
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- 238000005070 sampling Methods 0.000 title claims abstract description 104
- 239000012530 fluid Substances 0.000 title claims abstract description 89
- 238000012546 transfer Methods 0.000 claims abstract description 70
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 45
- 238000002347 injection Methods 0.000 claims abstract description 43
- 239000007924 injection Substances 0.000 claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims description 23
- 230000000903 blocking effect Effects 0.000 claims description 12
- 230000006978 adaptation Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims 2
- 238000007789 sealing Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000004925 denaturation Methods 0.000 description 2
- 230000036425 denaturation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
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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
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Physics & Mathematics (AREA)
- 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 application belongs to the technical field of geothermal exploration, and discloses a geothermal fluid airtight sampling device, which comprises: the sampling device comprises a sampling shell, wherein a fixed plug, a sampling plug and a plugging plug are arranged in the sampling shell, a first sample storage cavity is arranged between the sampling plug and the plugging plug, and the first sample storage cavity is communicated with the outside through a sample injection assembly; a first replacement cavity is arranged between the fixed plug and the sampling plug; a pressure stabilizing component and a transferring component are arranged in the sealing plug and are respectively communicated with the first sample storage cavity; the sample storage shell is internally provided with a second sample storage cavity and a second replacement cavity, the second sample storage cavity is communicated with the transfer assembly, and the second replacement cavity is communicated with the outside. The application has convenient use and repeated utilization, can realize the sealed sampling process of geothermal fluid from underground to overground, avoids the change of fluid property caused by environmental change in the open-air sampling process of geothermal fluid, improves the quality of a fluid sample, ensures that the parameters of the fluid sample have more referential property, and is convenient for the exploration and utilization of geothermal energy.
Description
Technical Field
The application belongs to the technical field of geothermal exploration, and particularly relates to a geothermal fluid airtight sampling device.
Background
Geothermal resources are renewable clean energy sources, have the characteristics of cleanness, environmental protection, wide application, good stability, recycling and the like, are not interfered by external factors such as seasons, weather, day and night changes and the like, are real and competitive new energy sources, and are gradually valued.
Because of the mobility of geothermal fluid, the underground state is unstable, and the regular sampling is needed, so that the high efficiency of geothermal utilization is ensured; current geothermal fluid sampling is typically performed by pumping geothermal fluid from the ground to the ground by a water pump or other device and sampling the ground; however, the property of the geothermal fluid is changed due to the change of the external temperature and pressure in the rising process of the geothermal fluid, the sample representativeness is poor, the property and the phase state characteristics of the stratum fluid cannot be truly reflected, and the geothermal fluid affects the water quality test work such as geothermal water chemical analysis, scale inhibition, scale prevention and the like.
Therefore, the application designs a geothermal fluid airtight sampling device to solve the technical problems.
Disclosure of Invention
In order to solve the technical problems, the application provides a geothermal fluid airtight sampling device.
In order to achieve the above object, the present application provides a geothermal fluid airtight sampling device, comprising:
the sampling device comprises a sampling shell, wherein a fixing plug, a sampling plug and a plugging plug are sequentially arranged in the inner cavity of the sampling shell from top to bottom, a first sample storage cavity is arranged between the sampling plug and the plugging plug, and the first sample storage cavity is communicated with the outside through a sample injection assembly; a first replacement cavity is arranged between the fixed plug and the sampling plug, and a containing cavity communicated with the first replacement cavity is arranged above the fixed plug; the blocking plug is respectively arranged in a limiting manner with the sampling shell and the sampling assembly, a pressure stabilizing assembly and a transferring assembly are arranged in the blocking plug, and the pressure stabilizing assembly and the transferring assembly are respectively communicated with the first sample storage cavity;
store up appearance casing, it has the activity stopper to store up sealed slip in the appearance casing, the both sides of activity stopper are provided with second and store up appearance chamber and second replacement chamber respectively, second store up appearance chamber with transfer assembly intercommunication, second replacement chamber and external intercommunication.
Preferably, the fixed plug is provided with a first pneumatic valve with adjustable valve opening pressure, and the valve opening pressure of the first pneumatic valve is smaller than the pressure of the geothermal fluid.
Preferably, the sample injection assembly comprises a sample injection hole formed in the sampling shell, and the sample injection hole is communicated with the first sample storage cavity and is limited by the plugging plug; a fixing plate and a sample injection plate which can pass through fluid are arranged in the sample injection hole, and the outer wall of the fixing plate is flush with the outer wall of the sampling shell; the sample injection device comprises a sample injection plate, and is characterized in that a sample injection rod is arranged between the fixed plate and the sample injection plate, a control plate is connected to the sample injection rod in a threaded manner, and the control plate is matched with the inner wall of the sample injection plate.
Preferably, the pressure stabilizing component comprises a pressure stabilizing hole formed in the top end of the plugging plug, and the pressure stabilizing hole is communicated with a pressure stabilizing cavity formed in the plugging plug; the pressure stabilizing cavity is internally and longitudinally provided with a pressure stabilizing plate in a sliding mode, and the bottom end of the pressure stabilizing cavity is communicated with an external pressure regulating device through a pressure stabilizing tube.
Preferably, the side wall of the plugging block is provided with a plurality of annular distributed limiting cavities, the limiting cavities face one end of the sampling shell body and are provided with a first limiting hole and a second limiting hole which are longitudinally arranged, a first limiting rod is connected in the first limiting hole in a sliding mode, a second limiting rod is connected in the second limiting hole in a sliding mode, the first limiting rod is matched with the sampling hole and is detachably connected with the sampling hole, and the second limiting rod is matched with a limiting groove formed in the inner wall of the sampling shell body and is detachably connected with the limiting groove.
Preferably, a first limiting motor and a second limiting motor are arranged in the limiting cavity, the first limiting motor is in transmission connection with the first limiting rod through a first transmission screw, and the second limiting motor is in transmission connection with the second limiting rod through a second transmission screw.
Preferably, the spacing intracavity rigid coupling has the division board, the rigid coupling has a plurality of limit springs on the division board, limit spring respectively with first gag lever post with the second gag lever post rigid coupling, limit spring overlaps respectively and establishes first drive screw with outside the second drive screw.
Preferably, the first limiting rod is embedded to be provided with the connecting cylinder, a plurality of holes of stepping down have been seted up to the connecting cylinder inner wall, it is connected with the engagement piece to step down the downthehole sliding, the engagement piece with the transmission screw thread looks adaptation of first drive screw outer wall is connected in the meshing.
Preferably, the transfer assembly comprises a transfer hole formed in the top end of the plugging plug, and the transfer hole is communicated with a transfer cavity formed in the plugging plug; the lateral wall of transfer chamber is flexible to be provided with the transfer joint, the transfer joint is with setting up the import looks adaptation and the intercommunication of the transfer pipe in the sample casing, the transfer pipe with the second stores up appearance chamber intercommunication.
Preferably, a plurality of transfer springs in a compressed state are arranged between the inner wall of the transfer cavity and the transfer joint, a connecting plate capable of passing fluid is fixedly connected to the inner cavity of the transfer joint, and a telescopic rod is fixedly connected between the connecting plate and the side wall of the transfer cavity.
Compared with the prior art, the application has the following advantages and technical effects: the application comprises a sampling shell for underground sealed sampling and a sample storage shell for storing samples in a sealed manner on the well, so that the stability of pressure is ensured in the process of transferring the samples from underground to overground for storage, the denaturation of the fluid samples and the influence of overground substances on the fluid components are prevented, the accuracy of sampling detection parameters is improved, and the properties of geothermal fluid can be truly reacted; the first sample storage cavity is in a compression state at the beginning, and the inlet of the first sample storage cavity is closed by the sample injection assembly, so that the influence on the middle of the sampling shell, which is submerged to a sampling point, is prevented; the sampling plug between the first replacement cavity and the first sample storage cavity slides in the sampling shell, when the sample injection assembly is opened, the fluid sample enters the first sample storage cavity, the solvent in the first sample storage cavity is enlarged, the first replacement cavity is compressed, the replacement fluid in the first replacement cavity is led into the accommodating cavity, and the purity of the fluid sample is prevented from being influenced by external substances through space replacement; after replacement is completed, the air drop of the first replacement cavity is reduced to a certain degree, the limiting assembly is controlled to be started, the plugging plug is lifted, the constant fluid pressure in the first sample storage cavity is ensured by the pressure stabilizing assembly, the sample injection assembly is closed, the first sample storage cavity is isolated from the outside, finally, the first sample storage cavity is transferred into the sample storage shell on the ground by the transfer assembly, the second replacement cavity in the sample storage shell and the second sample storage cavity are in a space replacement mode, the pressure and other parameters of the fluid sample in the second sample storage cavity are ensured to be the same as those of underground, the sealed sampling of geothermal fluid is completed, and the state and the property of geothermal fluid are conveniently and accurately analyzed.
The application has convenient use and repeated utilization, can realize the sealed sampling process of geothermal fluid from underground to overground, avoids the change of fluid property caused by environmental change in the open-air sampling process of geothermal fluid, improves the quality of a fluid sample, ensures that the parameters of the fluid sample have more referential property, and is convenient for the exploration and utilization of geothermal energy.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic view of a sampling housing according to the present application;
FIG. 2 is a schematic illustration of the structure of a closure according to the present application;
FIG. 3 is an enlarged view of a portion of FIG. 1A in accordance with the present application;
FIG. 4 is an enlarged view of a portion of B of FIG. 1 in accordance with the present application;
FIG. 5 is an enlarged view of a portion of C of FIG. 2 in accordance with the present application;
FIG. 6 is a schematic view of the structure of the engaging tab of the present application;
FIG. 7 is a schematic view of the sample housing of the present application;
in the figure: 1. a sampling housing; 2. a sample storage housing; 11. a fixed plug; 12. a sampling plug; 13. sealing the plug; 14. a first sample storage chamber; 15. a first displacement chamber; 16. a receiving chamber; 17. a first pneumatic valve; 18. a sample inlet; 19. a fixing plate; 110. sample plate feeding; 111. a sample injection rod; 112. a control board; 113. a pressure stabilizing hole; 114. a pressure stabilizing cavity; 115. a pressure stabilizing plate; 116. a voltage stabilizing tube; 117. a spacing cavity; 118. a first limiting hole; 119. a second limiting hole; 120. a first stop lever; 121. a second limit rod; 122. a limit groove; 123. a first limit motor; 124. the second limit motor; 125. a first drive screw; 126. a second drive screw; 127. a partition plate; 128. a limit spring; 129. a connecting cylinder; 130. a relief hole; 131. an engagement piece; 132. a drive screw; 133. a transfer hole; 134. a transfer chamber; 135. a transfer joint; 136. a transfer tube; 137. a transfer spring; 138. a connecting plate; 139. a telescopic rod; 140. a first control valve; 141. a second control valve; 142. a driving rod; 143. a power block; 144. a driven block; 145. a return spring; 146. a protective shell; 147. a balance tube; 148. a delivery tube; 149. triggering a switch; 150. a blocking spring; 21. a movable plug; 22. a second sample storage chamber; 23. a second displacement chamber; 24. a first valve; 25. a second valve; 26. a third valve; 27. and a fourth valve.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1-7, the present embodiment provides a geothermal fluid closed sampling device, which includes:
the sampling device comprises a sampling shell 1, wherein a fixed plug 11, a sampling plug 12 and a plugging plug 13 are sequentially arranged in the inner cavity of the sampling shell 1 from top to bottom, a first sample storage cavity 14 is arranged between the sampling plug 12 and the plugging plug 13, and the first sample storage cavity 14 is communicated with the outside through a sample injection assembly; a first replacement cavity 15 is arranged between the fixed plug 11 and the sampling plug 12, and a containing cavity 16 communicated with the first replacement cavity 15 is arranged above the fixed plug 11; the blocking plug 13 is respectively arranged in a limiting manner with the sampling shell 1 and the sampling assembly, a pressure stabilizing assembly and a transferring assembly are arranged in the blocking plug 13, and the pressure stabilizing assembly and the transferring assembly are respectively communicated with the first sample storage cavity 14;
the sample storage shell 2, the sealed slip in the sample storage shell 2 has movable stopper 21, and the both sides of movable stopper 21 are provided with second sample storage chamber 22 and second replacement chamber 23 respectively, and second sample storage chamber 22 communicates with the transfer unit, and second replacement chamber 23 communicates with the external world.
The application comprises a sampling shell 1 for underground sealed sampling and a sample storage shell 2 for storing samples in a sealed manner on the well, so that the stability of pressure is ensured in the process of transferring the samples from underground to overground for storage, the denaturation of the fluid samples and the influence of overground substances on the fluid components are prevented, the accuracy of sampling detection parameters is improved, and the properties of geothermal fluid can be truly reflected; the first sample storage cavity 14 is in a compression state at the beginning, and the inlet of the first sample storage cavity is closed by a sample injection assembly, so that the influence on the middle of the sampling shell 1, which is submerged to a sampling point, is prevented; the sampling plug 12 between the first replacement cavity 15 and the first sample storage cavity 14 slides in the sampling shell 1, when the sample injection assembly is opened, the fluid sample enters the first sample storage cavity 14, the solvent in the first sample storage cavity 14 is enlarged, the first replacement cavity 15 is compressed, the replacement fluid in the first replacement cavity 15 is introduced into the containing cavity 16, and the purity of the fluid sample is prevented from being influenced by external substances through space replacement; after replacement is finished, the air drop of the first replacement cavity 15 is reduced to a certain degree, the limiting assembly is controlled to be started, the plugging plug 13 is lifted, the constant fluid pressure in the first sample storage cavity 14 is ensured by the pressure stabilizing assembly, the sample injection assembly is closed, the first sample storage cavity 14 is isolated from the outside, finally, the sample is transferred into the overground sample storage shell 2 by the transfer assembly, the second replacement cavity 23 and the second sample storage cavity 22 in the sample storage shell 2 are in a space replacement mode, the same parameters such as the pressure of a fluid sample in the second sample storage cavity 22 are ensured to be the same as those in underground, the sealed sampling of geothermal fluid is finished, and the state and the property of geothermal fluid are conveniently and accurately analyzed.
Further, the second sample storage chamber 22 is communicated with a first valve 24 and a second valve 25, the first valve 24 is used for being communicated with the first sample storage chamber 14 to transfer the fluid sample in the first sample storage chamber 14 into the second sample storage chamber 22, and the second valve 25 is used for taking out the fluid sample in the second sample storage chamber 22.
Further, the second displacement chamber 23 is communicated with a third valve 26 and a fourth valve 27, the third valve 26 is used for adding displacement fluid, and the fourth valve 27 is adjustable in pressure and can be used for discharging the displacement fluid at constant pressure to displace the fluid sample.
In a further optimized scheme, a first pneumatic valve 17 with adjustable valve opening pressure is arranged on the fixed plug 11, and the valve opening pressure of the first pneumatic valve 17 is smaller than the pressure of geothermal fluid. The valve opening pressure of the first pneumatic valve 17 is smaller than the pressure of the geothermal fluid, and when sampling is performed, the geothermal fluid enters the first sample storage chamber 14, and the replacement fluid in the first replacement chamber 15 is pressurized, so that the replacement fluid pushes the first pneumatic valve 17 open and enters the accommodating chamber 16.
Further, the top end of the accommodating cavity 16 is communicated with the ground through the balance tube 147, so that the pressure of the replacement fluid in the accommodating cavity 16 is conveniently applied, and the fluid sample in the first sample storage cavity 14 is discharged, so that the recycling is realized.
In a further optimized scheme, the sample injection assembly comprises a sample injection hole 18 arranged on the sampling shell 1, wherein the sample injection hole 18 is communicated with the first sample storage cavity 14 and is in limit arrangement with the plugging plug 13; a fixed plate 19 and a sample injection plate 110 which can pass through fluid are arranged in the sample injection hole 18, and the outer wall of the fixed plate 19 is level with the outer wall of the sampling shell 1; a sample feeding rod 111 is arranged between the fixed plate 19 and the sample feeding plate 110, a control plate 112 is connected to the sample feeding rod 111 in a threaded manner, and the control plate 112 is matched with the inner wall of the sample feeding plate 110. The sample injection hole 18 is positioned between the sealing plug 13 and the sampling plug 12 in an initial state, and when the sampling position is not reached, the sample injection rod 111 pushes the control plate 112 against the sample injection plate 110, so that the sample injection is separated from the outside, and the sample injection is prevented from being influenced; when the sampling position is reached, the motor on the fixed plate 19 drives the sample injection rod 11 to rotate, so that the control plate 112 moves towards the fixed plate 19, and the fluid sequentially passes through the sample injection plate 110, the control plate 112 and the fixed plate 19 and then enters the first sample storage cavity 14.
Further, the fixing plate 19, the control plate 112 and the sample inlet plate 110 are respectively provided with a through hole for fluid to pass through, and the through holes of the control plate 112 and the sample inlet plate 110 are arranged in a staggered manner, when the two are attached, all the through holes are mutually blocked, so that the fluid is prevented from passing through.
In a further optimized scheme, the pressure stabilizing component comprises a pressure stabilizing hole 113 arranged at the top end of the plugging plug 13, and the pressure stabilizing hole 113 is communicated with a pressure stabilizing cavity 114 arranged in the plugging plug 13; a pressure stabilizing plate 115 longitudinally slides in the pressure stabilizing cavity 114, and the bottom end of the pressure stabilizing cavity 114 is communicated with an external pressure regulating device through a pressure stabilizing tube 116. When the sealing plug 13 is lifted, the first sample storage cavity 14 is extruded, so that the pressure in the first sample storage cavity 14 is changed, at the moment, the first control valve 140 in the pressure stabilizing hole 113 is opened, and redundant samples enter the pressure stabilizing cavity 114, so that the pressure stabilizing plate 115 is lowered, and the pressure stabilizing effect on the fluid in the first sample storage cavity 14 is realized; the pressure stabilizing tube 116 is communicated with the ground, and can pressurize and push the pressure stabilizing plate 115 in the pressure stabilizing cavity 114 to rise, so that the fluid in the pressure stabilizing cavity 114 is discharged, and the next use is convenient.
Further optimizing scheme, the lateral wall of shutoff stopper 13 has been seted up a plurality of rings and has been the spacing chamber 117 that annular distributes, and spacing chamber 117 has been seted up first spacing hole 118 and the second spacing hole 119 of longitudinal arrangement towards the one end of sampling shell 1, and sliding connection has first gag lever post 120 in first spacing hole 118, and sliding connection has second gag lever post 121 in second spacing hole 119, and first gag lever post 120 and sampling hole 18 looks adaptation can be dismantled and be connected, and second gag lever post 121 and the spacing groove 122 looks adaptation of seting up at sampling shell 1 inner wall can be dismantled and be connected. The first and second stop bars 120 and 121 act respectively; when in an initial state, the second limiting rod 121 extends out of the second limiting hole 119 and is clamped with the limiting groove 122, so that the plugging plug 13 is fixed; when the sampling is completed and the plug 13 is required to seal the sample injection assembly, the second limiting rod 121 is separated from the limiting groove 122, the plug 13 is lifted until the first limiting rod 120 is aligned with the sample injection hole 18 and is ejected from the first limiting hole 118 to be clamped into the sample injection hole 18, so that the plug 13 is positioned again, and the first sample storage cavity 14 is prevented from entering fluid again.
Further, the side wall of the plugging plug 13 is provided with a sealing ring, the sealing ring is located above the first limiting hole 118, and when the first limiting rod 120 is clamped with the sample injection hole 18, the sealing ring improves the tightness of the bottom end of the first sample storage cavity 14.
In a further optimization scheme, a first limiting motor 123 and a second limiting motor 124 are arranged in the limiting cavity 117, the first limiting motor 123 is in transmission connection with the first limiting rod 120 through a first transmission screw 125, and the second limiting motor 124 is in transmission connection with the second limiting rod 121 through a second transmission screw 126; the spacing cavity 117 is fixedly connected with a spacing plate 127, a plurality of spacing springs 128 are fixedly connected on the spacing plate 127, the spacing springs 128 are fixedly connected with the first spacing rod 120 and the second spacing rod 121 respectively, and the spacing springs 128 are sleeved outside the first transmission screw 125 and the second transmission screw 126 respectively. The limiting spring 128 and the first and second drive screws 125 and 126 are mainly used for controlling the movement of the first and second limiting rods 120 and 121, so as to realize the movement and positioning transformation of the sealing plug 13.
Further optimizing scheme, the first gag lever post 120 is embedded to be equipped with connecting cylinder 129, and a plurality of holes 130 of stepping down have been seted up to connecting cylinder 129 inner wall, and the hole 130 that stepping down sliding connection has engagement piece 131, and engagement piece 131 and the drive screw 132 looks adaptation of first drive screw 125 outer wall are engaged connection. The inner cavity of the connecting cylinder 129 is provided with a driving rod 142, a plurality of power blocks 143 are fixedly connected to the driving rod 142, the bottom ends of the power blocks 143 are obliquely arranged and are in sliding connection with the inclined planes at the top ends of the driven blocks 144, when the driving rod 142 drives the power blocks 143 to move, the driven blocks 144 can be extruded towards the first limiting rods 120 through the driven blocks 144, and further the meshing pieces 131 extend out of the yielding holes 130 and are meshed with the transmission threads 132 to realize threaded connection, at the moment, the first transmission rods rotate, and the connecting cylinder 129 can drive the first limiting rods 120 to move; when the driving rod 142 is reset, the reset spring 145 pushes the engagement piece 131 to reset and retract into the yielding hole 130 to be separated from the transmission thread 132, at this time, the connecting cylinder 129 is in sliding connection with the first limiting rod 120, and the limiting spring 128 pushes the first limiting rod 120 to realize elastic reset.
Further, the plurality of engagement pieces 131 are spirally distributed to form a structure similar to a thread which is matched with the transmission thread 132 and realizes engagement, so as to realize control of displacement of the first limiting rod 120.
Further, the control manner of the second stop lever 121 is the same as that of the first stop lever 120, and the first stop lever 120 and the second stop lever 121 are independently controlled.
Further optimizing scheme, the transfer assembly comprises a transfer hole 133 arranged at the top end of the plugging plug 13, and the transfer hole 133 is communicated with a transfer cavity 134 arranged in the plugging plug 13; the side wall of the transfer chamber 134 is provided with a transfer joint 135 in a telescopic manner, the transfer joint 135 is adapted to and communicates with the inlet of a transfer tube 136 provided in the sampling housing 1, and the transfer tube 136 communicates with the second sample storage chamber 22. When the fluid sample is required to be transferred after the sampling is completed, the second control valve 141 in the transfer hole 133 is opened, and the sampling plug 12 is pressurized at a constant pressure, so that the fluid in the first sample storage cavity 14 is transferred to the transfer cavity 134 at a constant pressure, and the transfer joint 135 is communicated with the inlet of the transfer tube 136, so that the fluid sample is transferred to the second sample storage cavity 22 at a constant pressure.
In a further optimized scheme, a plurality of transfer springs 137 in a compressed state are arranged between the inner wall of the transfer cavity 134 and the transfer joint 135, a connecting plate 138 capable of passing through fluid is fixedly connected to the inner cavity of the transfer joint 135, and a telescopic rod 139 is fixedly connected between the connecting plate 138 and the side wall of the transfer cavity 134. The transfer spring 137 and the telescopic rod 139 are mainly used for controlling the position of the transfer joint 135, so that when a fluid sample is conveniently transferred, the transfer joint 135 is retracted into the transfer cavity 134, and the movement of the sealing plug 13 is prevented from being influenced by extension; when it is desired to transfer a fluid sample, transfer adapter 135 is pushed out of transfer lumen 134 and inserted into transfer tube 136 to effect transfer of the fluid sample.
Further, the bottom end of the blocking plug 13 is provided with a plurality of blocking springs 150 for pushing the blocking plug 13 to rise, and the pushing force of the blocking springs 150 is not lower than the pressure of the fluid.
Further, the top of the sampling housing 1 is provided with a protective housing 146 for protecting the pipeline communicating with the ground, and can be used for pulling the sampling housing 1.
Further, the outlet of the transfer tube 136 is connected to a transfer tube 148, and the transfer tube 148 is disposed in the protective housing 146 for guiding the fluid sample in the first sample storage chamber 14 into the second sample storage chamber 22.
Further, a plurality of trigger switches 149 are arranged at the top end of the sampling plug 12, and the second limit motor 124 can be controlled to start after the sampling plug is topped, so as to unlock the blocking plug 13.
In the description of the present application, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
The above embodiments are only illustrative of the preferred embodiments of the present application and are not intended to limit the scope of the present application, and various modifications and improvements made by those skilled in the art to the technical solutions of the present application should fall within the protection scope defined by the claims of the present application without departing from the design spirit of the present application.
Claims (10)
1. A geothermal fluid containment sampling device, comprising:
the sampling device comprises a sampling shell (1), wherein a fixed plug (11), a sampling plug (12) and a plugging plug (13) are sequentially arranged in the inner cavity of the sampling shell (1) from top to bottom, a first sample storage cavity (14) is arranged between the sampling plug (12) and the plugging plug (13), and the first sample storage cavity (14) is communicated with the outside through a sample injection assembly; a first replacement cavity (15) is arranged between the fixed plug (11) and the sampling plug (12), and a containing cavity (16) communicated with the first replacement cavity (15) is arranged above the fixed plug (11); the blocking plug (13) is respectively arranged in a limiting manner with the sampling shell (1) and the sampling assembly, a pressure stabilizing assembly and a transferring assembly are arranged in the blocking plug (13), and the pressure stabilizing assembly and the transferring assembly are respectively communicated with the first sampling storage cavity (14);
store up appearance casing (2), it has activity stopper (21) to store up the sealed slip in appearance casing (2), the both sides of activity stopper (21) are provided with second store up appearance chamber (22) and second replacement chamber (23) respectively, second store up appearance chamber (22) with transfer unit intercommunication, second replacement chamber (23) and external intercommunication.
2. The geothermal fluid closed sampling device of claim 1, wherein: the fixed plug (11) is provided with a first pneumatic valve (17) with adjustable valve opening pressure, and the valve opening pressure of the first pneumatic valve (17) is smaller than the pressure of geothermal fluid.
3. The geothermal fluid closed sampling device of claim 1, wherein: the sample injection assembly comprises a sample injection hole (18) formed in the sampling shell (1), and the sample injection hole (18) is communicated with the first sample storage cavity (14) and is limited by the plugging plug (13); a fixing plate (19) and a sample injection plate (110) which can pass through fluid are arranged in the sample injection hole (18), and the outer wall of the fixing plate (19) is flush with the outer wall of the sampling shell (1); sample introduction rod (111) is arranged between fixed plate (19) and sample introduction plate (110), screw thread connection has control panel (112) on sample introduction rod (111), control panel (112) with sample introduction plate (110) inner wall looks adaptation.
4. The geothermal fluid closed sampling device of claim 1, wherein: the pressure stabilizing assembly comprises a pressure stabilizing hole (113) formed in the top end of the plugging plug (13), and the pressure stabilizing hole (113) is communicated with a pressure stabilizing cavity (114) formed in the plugging plug (13); the pressure stabilizing cavity (114) is internally and longitudinally provided with a pressure stabilizing plate (115) in a sliding mode, and the bottom end of the pressure stabilizing cavity (114) is communicated with an external pressure regulating device through a pressure stabilizing tube (116).
5. A geothermal fluid closed sampling device according to claim 3, wherein: the side wall of shutoff stopper (13) has been seted up a plurality of rings and has been annular spacing chamber (117) that distribute, spacing chamber (117) orientation first spacing hole (118) and second spacing hole (119) of longitudinal arrangement have been seted up to the one end of sampling shell (1), sliding connection has first gag lever post (120) in first spacing hole (118), sliding connection has second gag lever post (121) in second spacing hole (119), first gag lever post (120) with sampling hole (18) looks adaptation is connected in a detachable way, second gag lever post (121) with set up spacing groove (122) looks adaptation and the connection of dismantling of sampling shell (1) inner wall.
6. The geothermal fluid sealed sampling device of claim 5, wherein: a first limiting motor (123) and a second limiting motor (124) are arranged in the limiting cavity (117), the first limiting motor (123) is in transmission connection with the first limiting rod (120) through a first transmission screw (125), and the second limiting motor (124) is in transmission connection with the second limiting rod (121) through a second transmission screw (126).
7. The geothermal fluid containment sampling device of claim 6, wherein: the limiting cavity (117) is internally fixedly connected with a separation plate (127), a plurality of limiting springs (128) are fixedly connected on the separation plate (127), the limiting springs (128) are fixedly connected with the first limiting rod (120) and the second limiting rod (121) respectively, and the limiting springs (128) are sleeved outside the first transmission screw (125) and the second transmission screw (126) respectively.
8. The geothermal fluid containment sampling device of claim 6, wherein: the connecting device is characterized in that a connecting cylinder (129) is embedded in the first limiting rod (120), a plurality of yielding holes (130) are formed in the inner wall of the connecting cylinder (129), meshing pieces (131) are connected in the yielding holes (130) in a sliding mode, and the meshing pieces (131) are matched with and meshed with transmission threads (132) on the outer wall of the first transmission screw (125).
9. The geothermal fluid containment sampling device of claim 6, wherein: the transfer assembly comprises a transfer hole (133) formed in the top end of the plugging plug (13), and the transfer hole (133) is communicated with a transfer cavity (134) formed in the plugging plug (13); the side wall of the transfer cavity (134) is provided with a transfer joint (135) in a telescopic mode, the transfer joint (135) is matched with and communicated with an inlet of a transfer pipe (136) arranged in the sampling shell (1), and the transfer pipe (136) is communicated with the second sample storage cavity (22).
10. The geothermal fluid containment sampling device of claim 9, wherein: a plurality of transfer springs (137) in a compressed state are arranged between the inner wall of the transfer cavity (134) and the transfer joint (135), a connecting plate (138) capable of passing through fluid is fixedly connected to the inner cavity of the transfer joint (135), and a telescopic rod (139) is fixedly connected between the connecting plate (138) and the side wall of the transfer cavity (134).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311179352.3A CN117030349B (en) | 2023-09-13 | 2023-09-13 | Geothermal fluid airtight sampling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311179352.3A CN117030349B (en) | 2023-09-13 | 2023-09-13 | Geothermal fluid airtight sampling device |
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| CN117030349B CN117030349B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311179352.3A Active CN117030349B (en) | 2023-09-13 | 2023-09-13 | Geothermal fluid airtight sampling device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4254830A (en) * | 1979-09-10 | 1981-03-10 | Dresser Industries, Inc. | Geothermal well sampler apparatus |
| CN104838089A (en) * | 2012-12-07 | 2015-08-12 | Ifp新能源公司 | Pressurized fluid sampler for monitoring geological storage of gas |
| CN110608917A (en) * | 2018-06-14 | 2019-12-24 | 中国石油化工股份有限公司 | Sampling device and sampling method for constant-pressure collection of high-pressure condensate oil gas |
| CN112539058A (en) * | 2019-09-20 | 2021-03-23 | 中国石油化工集团有限公司 | Sealed sampling device for geothermal fluid |
| CN215004480U (en) * | 2021-05-17 | 2021-12-03 | 中铁十一局集团城市轨道工程有限公司 | A sample collection system for subway tunnel slip casting thick liquid |
-
2023
- 2023-09-13 CN CN202311179352.3A patent/CN117030349B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4254830A (en) * | 1979-09-10 | 1981-03-10 | Dresser Industries, Inc. | Geothermal well sampler apparatus |
| CN104838089A (en) * | 2012-12-07 | 2015-08-12 | Ifp新能源公司 | Pressurized fluid sampler for monitoring geological storage of gas |
| CN110608917A (en) * | 2018-06-14 | 2019-12-24 | 中国石油化工股份有限公司 | Sampling device and sampling method for constant-pressure collection of high-pressure condensate oil gas |
| CN112539058A (en) * | 2019-09-20 | 2021-03-23 | 中国石油化工集团有限公司 | Sealed sampling device for geothermal fluid |
| CN215004480U (en) * | 2021-05-17 | 2021-12-03 | 中铁十一局集团城市轨道工程有限公司 | A sample collection system for subway tunnel slip casting thick liquid |
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| CN117030349B (en) | 2024-04-02 |
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