CN117552755B - Brine discharging device of salt cavern gas storage - Google Patents
Brine discharging device of salt cavern gas storage Download PDFInfo
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- CN117552755B CN117552755B CN202410040182.9A CN202410040182A CN117552755B CN 117552755 B CN117552755 B CN 117552755B CN 202410040182 A CN202410040182 A CN 202410040182A CN 117552755 B CN117552755 B CN 117552755B
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- Prior art keywords
- vertical
- discharge pipe
- brine
- fixedly arranged
- sealing plate
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- 239000012267 brine Substances 0.000 title claims abstract description 82
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 title claims abstract description 81
- 150000003839 salts Chemical class 0.000 title claims abstract description 35
- 238000003860 storage Methods 0.000 title claims abstract description 17
- 238000007599 discharging Methods 0.000 title description 8
- 238000001125 extrusion Methods 0.000 claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 229910052736 halogen Inorganic materials 0.000 claims description 35
- 150000002367 halogens Chemical class 0.000 claims description 35
- 238000007789 sealing Methods 0.000 claims description 31
- 238000002347 injection Methods 0.000 claims description 17
- 239000007924 injection Substances 0.000 claims description 17
- 238000003825 pressing Methods 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 27
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 239000012535 impurity Substances 0.000 description 7
- 239000003345 natural gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/122—Gas lift
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/08—Methods or apparatus for cleaning boreholes or wells cleaning in situ of down-hole filters, screens, e.g. casing perforations, or gravel packs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/08—Screens or liners
- E21B43/086—Screens with preformed openings, e.g. slotted liners
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/28—Dissolving minerals other than hydrocarbons, e.g. by an alkaline or acid leaching agent
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention belongs to the technical field of gas storage, and discloses a brine discharge device of a salt cavern gas storage, which has the technical key points that: including salt cave chamber and sleeve pipe, the sleeve pipe inner chamber is provided with annotates the gas production pipe, annotate the intraductal coaxial fixed mounting of gas production and have row's steamed pipe, row's steamed pipe lateral wall has offered the multiunit and is the sieve mesh that the annular distributes, arrange the inside anti-blocking mechanism that is provided with of steamed pipe and mutually support with the sieve mesh, anti-blocking mechanism is including dredging pole, locating component and mediation subassembly, the mediation subassembly is including extrusion portion and control division, mutually support with locating component through the mediation subassembly that extrusion portion and control division are constituteed, the relative position of regulation dredging pole and sieve mesh that can be convenient, and then can clear up the insoluble that the sieve mesh surface was blockked up, effectively improves the pumping efficiency of brine.
Description
Technical Field
The invention relates to the technical field of gas storage, in particular to a halogen discharging device of a salt cavern gas storage.
Background
The cavity construction engineering of the salt pit underground gas storage generally adopts a water-soluble technology, and after the construction of the salt pit cavity is completed, natural gas can be injected into the salt pit through a gas injection and halogen discharge pipe column, and then the brine remained in the salt pit bottom pit is further discharged. This step is usually performed by using a gas injection and brine discharge pipe column, and a common gas injection and brine discharge pipe column comprises a gas injection and production pipe and a brine discharge pipe coaxially sleeved in the gas injection and production pipe. During the cavity making process of the dissolved salt, most of the salt is dissolved, but a part of the salt falls into the bottom of the salt pit along with insoluble substances (insoluble substances) in the salt rock interlayer, so that a salt pit bottom pit is formed.
In the gas injection and brine discharge process, brine in the salt cavern passes through the through holes on the surface of the brine discharge pipe and then flows into the brine discharge pipe, and the brine is sucked to the outside of the salt cavern through the brine discharge pipe.
However, when the existing halogen discharge pipe is used, necessary impurity removal measures are not needed, a large amount of insoluble impurities are mixed in salt cavern brine, and in the halogen discharge process, the insoluble impurities easily block through holes on the surface of the halogen discharge pipe, so that the halogen discharge pipe needs to be manually taken out for cleaning, and the halogen discharge efficiency is affected.
Disclosure of Invention
The invention aims to provide a brine discharging device of a salt cavern gas storage, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a salt cave gas storage's row steamed device, includes salt cave chamber and sleeve pipe, the sleeve pipe sets up in salt cave chamber top, the sleeve pipe inner chamber is provided with annotates the gas production pipe, the annular gap between sleeve pipe and the notes gas production pipe is provided with the packer, it has row steamed pipe to annotate the intraductal coaxial fixed mounting of gas production, row steamed pipe bottom extends to notes the gas production pipe outside and is provided with the drill bit, row steamed pipe lateral wall has seted up the multiunit and has been the sieve mesh that the annular distributes, row steamed intraductal portion is provided with the anti-blocking mechanism that mutually support with the sieve mesh, anti-blocking mechanism is including dredging rod, locating component and mediation subassembly, the dredging rod is provided with the multiunit and is in row steamed intraductal chamber, locating component is located row steamed intraductal wall and is connected with the mediation rod, locating component is used for controlling dredging rod and sieve mesh relative distribution, the mediation subassembly is including extrusion portion and control portion, extrusion portion is located row steamed intraductal chamber and is connected with the control portion, control portion drives dredging rod towards the direction through the mode that mutually support with extrusion portion.
As a further scheme of the invention: the positioning assembly comprises a plurality of groups of guide rods fixedly arranged on the annular inner wall of the halogen discharge pipe, the guide rods are respectively arranged on the upper side and the lower side of the sieve holes, a vertical plate is arranged on the upper guide rod and the lower guide rod in a sliding mode, a bottom plate is fixedly arranged at one end, away from the inner wall of the halogen discharge pipe, of the guide rods, and dredging rods are fixedly arranged on the side walls of the vertical plates and are distributed opposite to the sieve holes.
As a further scheme of the invention: the extrusion part comprises a stand column, a plurality of groups of connecting rods are fixedly arranged at the upper end and the lower end of the stand column respectively, one end, away from the stand column, of each connecting rod is fixedly connected with the inner wall of a halogen discharge pipe, a vertical cavity is formed in the stand column, a plurality of groups of annularly distributed vertical grooves are formed in the side wall of the stand column inwards, the vertical grooves are communicated with the vertical cavity, a reset spring is fixedly arranged at the bottom end of the vertical cavity, a sliding block is fixedly connected with the telescopic end of the reset spring, a connecting block extending into the vertical groove is fixedly arranged on the side wall of the sliding block, a plurality of groups of connecting blocks extend to the outer side of the stand column and are fixedly connected with sleeves, the sleeves are sleeved on the outer side of the stand column, a plurality of groups of annularly distributed push-pull rods are respectively and rotatably arranged on the side walls of the sleeve and the side wall of the stand column, extrusion plates are rotatably arranged on the upper side and the lower side of the push-pull rods, and the extrusion plates are relatively distributed with the vertical plates.
As a further scheme of the invention: the control part comprises a fixed cylinder, the fixed cylinder is through coaxial fixed mounting of support in row's steamed tub inner chamber, and both ends link up about the fixed cylinder, and the cyclic annular space fixed mounting between fixed cylinder and the row's steamed tub has electromagnetic control valve, fixed cylinder top fixed mounting has the roof, roof diapire fixed mounting has extrusion spring, extrusion spring's telescopic end fixedly connected with closing plate, closing plate and fixed cylinder follow vertical direction sliding connection, closing plate diapire fixed mounting has the dead lever, dead lever bottom fixed mounting has the impact disc, sliding block fixed surface installs the montant, the montant top extends to the stand outside and fixed mounting has the pressure-bearing dish mutually supporting with the impact disc.
As a further scheme of the invention: the inner side wall of the fixed cylinder is fixedly provided with a plurality of groups of positioning rods, and the positioning rods are in sliding connection with the sealing plate along the vertical direction.
As a further scheme of the invention: the side wall of the fixed cylinder is provided with a pressure relief hole matched with the sealing plate.
As still further aspects of the invention: the inner wall of the halogen discharge pipe is fixedly provided with a control spring which is sleeved on the outer side of the guide rod and connected with the vertical plate.
Compared with the prior art, the invention has the beneficial effects that: the dredging assembly and the positioning assembly are matched with each other, so that the relative positions of the dredging rod and the sieve holes can be conveniently adjusted, insoluble matters blocked on the surface of the sieve holes can be further cleaned, and the pumping efficiency of brine is effectively improved. Solves the problems that the prior insoluble impurities are easy to cause blockage to the through holes on the surface of the halogen discharge pipe, and the halogen discharge pipe is required to be taken out manually for cleaning, thereby influencing the halogen discharge efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a brine discharging device of a salt cavern gas storage according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a halogen discharging pipe and a connection structure thereof in a halogen discharging device of a salt cavern gas storage according to an embodiment of the present invention.
Fig. 3 is an enlarged schematic view of the structure of fig. 2 a.
Fig. 4 is a schematic top view of a halogen discharge pipe in the halogen discharge device of the salt cavern gas storage according to the embodiment of the present invention.
Fig. 5 is a schematic view of an external structure of a column in a brine discharge apparatus of a salt cavern gas storage according to an embodiment of the present invention.
Wherein: 1-salt cavern, 2-sleeve, 3-injection and production pipe, 4-brine discharge pipe, 41-sieve mesh, 5-blocking prevention mechanism, 51-dredging rod, 52-positioning component, 521-guide rod, 522-riser, 523-bottom plate, 53-dredging component, 531-extrusion part, 5310-extrusion plate, 5311-upright post, 5312-connecting rod, 5313-vertical cavity, 5314-vertical groove, 5315-return spring, 5316-sliding block, 5317-connecting block, 5318-sleeve, 5319-push-pull rod, 532-control part, 5321-fixed cylinder, 5322-electromagnetic control valve, 5323-top plate, 5324-extrusion spring, 5325-sealing plate, 5326-fixed rod, 5327-impact disc, 5328-vertical rod, 5329-pressure bearing disc, 6-positioning rod, 7-pressure release hole, 8-control spring, 9-packer and 10-drill bit.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
As shown in fig. 1, fig. 2 and fig. 4, the structure diagram of the brine discharge device of the brine pit gas storage provided by the embodiment of the invention comprises a brine pit cavity 1 and a sleeve 2, the sleeve 2 is arranged at the top end of the brine pit cavity 1, the inner cavity of the sleeve 2 is provided with a gas injection and production pipe 3, an annular gap between the sleeve 2 and the gas injection and production pipe 3 is provided with a packer 9, a brine discharge pipe 4 is coaxially and fixedly arranged in the gas injection and production pipe 3, the bottom end of the brine discharge pipe 4 extends to the outer side of the gas injection and production pipe 3 and is provided with a drill bit 10, a plurality of groups of sieve holes 41 distributed in a ring shape are formed in the side wall of the brine discharge pipe 4, an anti-blocking mechanism 5 matched with the sieve holes 41 is arranged in the brine discharge pipe 4, the anti-blocking mechanism 5 comprises a plurality of groups and is arranged in the inner cavity of the brine discharge pipe 4, the positioning component 52 is positioned in the inner wall of the brine discharge pipe 4 and is connected with the dredging rod 51, the positioning component 52 is used for controlling the relative distribution of the brine discharge pipe 51 and 41, the positioning component 52 comprises a control part 531, the control part 531 is arranged in the extrusion mode and the control part 531 is matched with the dredging part 532 by the control part and the control part 532 is matched with the dredging part 41.
When the brine pump is used, brine is filled in the salt cavity 1, natural gas is injected into the salt cavity 1 through the gas injection and production pipe 3, the natural gas extrudes the brine in the salt cavity 1, the brine passes through the sieve holes 41 and flows into the brine discharge pipe 4, the brine in the salt cavity 1 can be conveniently pumped out through the brine discharge pipe 4, the positioning component 52 supports and positions the dredging rod 51 in the inner cavity of the brine discharge pipe 4, the dredging rod 51 is positioned in the inner cavity of the brine discharge pipe 4 and is distributed opposite to the sieve holes 41, when the phenomenon that the sieve holes 41 on the surface of the brine discharge pipe 4 are seriously blocked is found, the control part 532 and the extrusion part 531 are mutually matched, the dredging rod 51 can be controlled to move towards the direction of the sieve holes 41, the dredging rod 51 is inserted into the sieve holes 41, insoluble impurities blocked on the surface of the sieve holes 41 can be conveniently extruded, the sieve holes 41 are kept in a through state, and the pumping efficiency of the brine is effectively improved.
As shown in fig. 1 and 2, as a preferred embodiment of the present invention, the positioning assembly 52 includes a plurality of groups of guide rods 521 fixedly mounted on the annular inner wall of the halogen discharge pipe 4, a plurality of groups of guide rods 521 are respectively disposed on the upper and lower sides of the sieve hole 41, a vertical plate 522 is slidably mounted on the upper and lower groups of guide rods 521, a bottom plate 523 is fixedly mounted on one end of the guide rods 521 away from the inner wall of the halogen discharge pipe 4, and the dredging rods 51 are fixedly mounted on the side walls of the vertical plate 522 and are distributed opposite to the sieve hole 41.
When the novel dredging device is used, the guide rods 521 on the upper side and the lower side support and position the vertical plates 522, the vertical plates 522 are positioned on the inner sides of the sieve holes 41, the vertical plates 522 support and position the dredging rods 51, the extrusion parts 531 apply thrust to the vertical plates 522, the vertical plates 522 slide along the direction of the guide rods 521, the vertical plates 522 drive the dredging rods 51 to synchronously move towards the direction of the sieve holes 41, and insoluble impurities blocked on the surfaces of the sieve holes 41 can be conveniently extruded by the dredging rods 51.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, as a preferred embodiment of the present invention, the extruding portion 531 includes a column 5311, upper and lower ends of the column 5311 are respectively and fixedly provided with a plurality of groups of connecting rods 5312, one end of the connecting rod 5312 away from the column 5311 is fixedly connected with an inner wall of the halogen discharging tube 4, a vertical cavity 5313 is provided inside the column 5311, a plurality of groups of annularly distributed vertical grooves 5314 are provided on a side wall of the column 5311 inwards, the vertical grooves 5314 are communicated with the vertical cavity 5313, a reset spring 5315 is fixedly installed at a bottom end of the vertical cavity 5313, a telescopic end of the reset spring 5315 is fixedly connected with a sliding block 5316, a connecting block 5317 extending into the vertical groove 5314 is fixedly installed on a side wall of the sliding block 5316, a plurality of groups of connecting blocks 5317 extend to an outer side of the column 5311 and are fixedly connected with a sleeve 5318 together, the sleeve 5318 is sleeved on an outer side of the column 5311, a plurality of groups of annularly distributed rods 5319 are respectively and rotatably installed on a side wall of the sleeve 5318 and a plurality of push-pull rods 5319, and the upper and lower sides of the rods 5319 are rotatably installed together with a extruding plate 5310.
Initially, the return spring 5315 supports the sliding block 5316, so that the sliding block 5316 is located at the upper portion of the vertical cavity 5313, the sliding block 5316 is matched with the connecting block 5317, the sleeve 5318 can be supported and positioned on the surface of the vertical column 5311, when the sliding block 5316 is pushed by the control part 532 to move vertically downwards in the vertical cavity 5313, the sleeve 5318 is driven by the sliding block 5316 to move synchronously downwards on the surface of the vertical column 5311, the sleeve 5318 is matched with the push-pull rod 5319, the extrusion plate 5310 can be pushed to move towards the vertical plate 522, the extrusion plate 5310 can apply thrust to the vertical plate 522, and the vertical plate 522 can be pushed to move towards the sieve holes 41.
As shown in fig. 1, 2, 3, 4 and 5, as a preferred embodiment of the present invention, the control portion 532 includes a fixing cylinder 5321, the fixing cylinder 5321 is coaxially and fixedly mounted in the inner cavity of the halogen discharge tube 4 through a bracket, the upper and lower ends of the fixing cylinder 5321 are penetrated, an electromagnetic control valve 5322 is fixedly mounted in an annular gap between the fixing cylinder 5321 and the halogen discharge tube 4, a top plate 5323 is fixedly mounted at the top end of the fixing cylinder 5321, a pressing spring 5324 is fixedly mounted at the bottom wall of the top plate 5323, a sealing plate 5325 is fixedly connected at the telescopic end of the pressing spring 5324, the sealing plate 5325 is slidably connected with the fixing cylinder 5321 in the vertical direction, a fixing rod 5326 is fixedly mounted at the bottom wall of the sealing plate 5325, an impact plate 5327 is fixedly mounted at the bottom end of the fixing rod 5326, a vertical rod 5328 is fixedly mounted on the surface of the sliding block 5316, and a pressing plate 5329 is fixedly mounted on the top end of the vertical rod 5328 to the outside of the vertical rod 5311.
At first, the electromagnetic control valve 5322 controls the annular gap between the fixed cylinder 5321 and the halogen discharge pipe 4 to be in a through state, brine can flow in the annular gap between the fixed cylinder 5321 and the halogen discharge pipe 4, when the sieve holes 41 need to be dredged, the electromagnetic control valve 5322 seals the annular gap between the fixed cylinder 5321 and the halogen discharge pipe 4, the brine continuously flows towards the inside of the halogen discharge pipe 4, the pressure of the brine pushes the sealing plate 5325 to vertically move upwards in the fixed cylinder 5321, at the moment, the extrusion spring 5324 continuously presses, the extrusion force exerted by the extrusion spring 5324 continuously increases, the electromagnetic control valve 5322 controls the annular gap between the fixed cylinder 5321 and the halogen discharge pipe 4 to be in a through state again, the brine in the halogen discharge pipe 4 can freely flow, the brine does not press the sealing plate 5325, the extrusion spring 5324 pushes the sealing plate 5325 to vertically move downwards in the fixed cylinder 5321, the sealing plate 5325 and the fixing rod 5326 are mutually matched, the impact plate 5327 can synchronously move downwards, the impact plate 5327 applies a thrust force 5329 to the pressure-bearing plate 5329, and the vertical rod 5328 can vertically move in the vertical rod 5316.
As shown in fig. 1 and 2, as a preferred embodiment of the present invention, a plurality of groups of positioning rods 6 are fixedly mounted on the inner side wall of the fixed cylinder 5321, and the positioning rods 6 are slidably connected with the sealing plate 5325 along the vertical direction.
When the sealing plate 5325 slides in the vertical direction in the fixing cylinder 5321, the positioning rod 6 can effectively improve the stability of the sealing plate 5325 during movement.
As shown in fig. 1 and 2, as a preferred embodiment of the present invention, the side wall of the fixed cylinder 5321 is provided with a pressure relief hole 7 which is matched with the sealing plate 5325. After the sealing plate 5325 moves above the pressure release hole 7, brine in the fixing cylinder 5321 can flow to the outside of the fixing cylinder 5321 through the pressure release hole 7.
As shown in fig. 1 and 2, as a preferred embodiment of the present invention, a control spring 8 is fixedly installed on the inner wall of the halogen discharge pipe 4, and the control spring 8 is sleeved outside the guide rod 521 and connected to the riser 522.
The working principle of the invention is as follows: when the brine hole cavity 1 is filled with brine in use, the gas injection and production pipe 3 injects natural gas into the brine hole cavity 1, the natural gas extrudes the brine in the brine hole cavity 1, the brine passes through the sieve holes 41 and flows into the brine discharge pipe 4, the brine in the brine hole cavity 1 can be conveniently and rapidly pumped out through the brine discharge pipe 4, in the process of pumping the brine, the electromagnetic control valve 5322 controls the annular gap between the fixed cylinder 5321 and the brine discharge pipe 4 to be in a through state, and the brine can flow at the annular gap between the fixed cylinder 5321 and the brine discharge pipe 4. When the sieve pores 41 need to be dredged, the electromagnetic control valve 5322 seals the annular gap between the fixed cylinder 5321 and the brine discharge pipe 4, brine continuously flows towards the inside of the brine discharge pipe 4, the pressure of brine pushes the sealing plate 5325 to vertically move upwards in the fixed cylinder 5321, at the moment, the extrusion spring 5324 is continuously pressed, the extrusion force of the extrusion spring 5324 is continuously increased, the electromagnetic control valve 5322 controls the annular gap between the fixed cylinder 5321 and the brine discharge pipe 4 to be in a penetrating state again, brine in the brine discharge pipe 4 can freely flow, the brine does not extrude the sealing plate 5325, the extrusion spring 5324 pushes the sealing plate 5325 to vertically move downwards in the fixed cylinder 5321, the sealing plate 5325 and the fixed rod 5326 are mutually matched, the impact plate 5327 can be pushed to synchronously move downwards, the impact plate 5327 applies thrust to the vertical rod 5329, the pressure-bearing plate 5329 and the vertical rod 5328 are mutually matched, the sliding block 5316 can be pushed to vertically move downwards in the vertical cavity 5313, the sliding block 5316 drives the sleeve 5318 to synchronously move downwards on the surface of the vertical column 5311, the sleeve 5318 can synchronously move towards the vertical rod 5319 and the vertical rod 522 can be pushed to move towards the vertical plate 522, and the extruding plate 522 can move towards the vertical plate 522. The riser 522 control dredge pole 51 removes towards sieve mesh 41 direction, and dredge pole 51 inserts in sieve mesh 41, can be convenient extrude the insoluble impurity that blocks up at sieve mesh 41 surface, keeps sieve mesh 41 to be in the state of lining up, effectively improves the pumping efficiency of brine.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (3)
1. The brine discharge device of the salt cavern gas storage comprises a salt cavern cavity and a sleeve, wherein the sleeve is arranged at the top end of the salt cavern cavity, a gas injection and production pipe is arranged in the sleeve cavity, a packer is arranged in an annular gap between the sleeve and the gas injection and production pipe, a brine discharge pipe is coaxially and fixedly arranged in the gas injection and production pipe, the bottom end of the brine discharge pipe extends to the outer side of the gas injection and production pipe and is provided with a drill bit, the brine discharge device is characterized in that a plurality of groups of sieve holes which are distributed in a ring shape are formed in the side wall of the brine discharge pipe, an anti-blocking mechanism matched with the sieve holes is arranged in the brine discharge pipe, the anti-blocking mechanism comprises a dredging rod, a positioning component and a dredging component, the dredging rod is provided with a plurality of groups and is positioned in the inner cavity of the brine discharge pipe, the positioning component is positioned on the inner wall of the brine discharge pipe and is connected with the dredging rod, the positioning component is used for controlling the relative distribution of the dredging rod and the sieve holes, the positioning component comprises a plurality of groups of guide rods fixedly arranged on the annular inner wall of the halogen discharge pipe, a plurality of groups of guide rods are respectively arranged on the upper side and the lower side of the sieve hole, a vertical plate is arranged on the upper side and the lower side of the sieve hole in a sliding manner, one end of each guide rod, which is far away from the inner wall of the halogen discharge pipe, is fixedly provided with a bottom plate, the dredging rod is fixedly arranged on the side wall of the vertical plate and is distributed opposite to the sieve hole, the dredging component comprises an extrusion part and a control part, the extrusion part is positioned in the inner cavity of the halogen discharge pipe and is connected with the control part, the control part drives the dredging rod to move towards the sieve hole in a manner of being matched with the extrusion part, the extrusion part comprises a vertical column, a plurality of groups of connecting rods are respectively fixedly arranged at the upper end and the lower end of the vertical column, one end of each connecting rod, which is far away from the vertical column, is fixedly connected with the inner wall of the halogen discharge pipe, a vertical cavity is formed in the vertical column, a plurality of groups of vertical grooves which are distributed in an annular manner are inwards formed in the side wall of the vertical column, the vertical groove is communicated with the vertical cavity, a reset spring is fixedly arranged at the bottom end of the vertical cavity, a sliding block is fixedly connected to the telescopic end of the reset spring, a connecting block extending into the vertical groove is fixedly arranged on the side wall of the sliding block, a plurality of groups of connecting blocks extend to the outer side of the vertical column and are fixedly connected with a sleeve together, the sleeve is sleeved on the outer side of the vertical column, a plurality of groups of push-pull rods which are annularly distributed are respectively and rotatably arranged on the side wall of the sleeve and the side wall of the vertical column, a pressing plate is fixedly arranged on the push-pull rods on the upper side and the lower side in a rotating manner, the pressing plate is relatively distributed with the vertical plate, the control part comprises a fixed cylinder, an electromagnetic control valve is fixedly arranged at the upper end and the lower end of the fixed cylinder through a circular gap between the fixed cylinder and the halogen discharge pipe, a sealing plate is fixedly arranged at the top end of the fixed cylinder, the pressing spring is fixedly connected with the telescopic end of the sealing plate, the sealing plate is fixedly connected with the sealing plate along the vertical direction, the sealing plate bottom wall of the sealing plate is fixedly arranged on the bottom wall of the sealing plate, an impact pressure plate is fixedly arranged on the bottom end of the fixing plate, the pressing plate is fixedly arranged on the surface of the sealing plate and the sealing plate is matched with the side wall of the vertical rod, and the sealing plate is fixedly arranged on the top end of the sealing plate.
2. The brine discharge device of the salt cavern gas storage according to claim 1, wherein a plurality of groups of positioning rods are fixedly arranged on the inner side wall of the fixed cylinder, and the positioning rods are in sliding connection with the sealing plate along the vertical direction.
3. The brine discharge device of the salt cavern gas storage according to claim 1, wherein a control spring is fixedly arranged on the inner wall of the brine discharge pipe, and the control spring is sleeved on the outer side of the guide rod and connected with the vertical plate.
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CN202410040182.9A CN117552755B (en) | 2024-01-11 | 2024-01-11 | Brine discharging device of salt cavern gas storage |
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CN202410040182.9A CN117552755B (en) | 2024-01-11 | 2024-01-11 | Brine discharging device of salt cavern gas storage |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102009057534A1 (en) * | 2009-12-08 | 2011-06-09 | Kbb Underground Technologies Gmbh | Method for discharging sodium chloride brine of natural gas storage cavern, involves introducing gas into injection line for lifting brine, and continuously or discontinuously adding water for dilution of saturated brine to introduced gas |
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2024
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