CN209781889U - Prefabricated insulating tube for geothermal deep well - Google Patents
Prefabricated insulating tube for geothermal deep well Download PDFInfo
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- CN209781889U CN209781889U CN201920248033.6U CN201920248033U CN209781889U CN 209781889 U CN209781889 U CN 209781889U CN 201920248033 U CN201920248033 U CN 201920248033U CN 209781889 U CN209781889 U CN 209781889U
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Abstract
The utility model provides a prefabricated insulating tube for a geothermal deep well, which comprises a first working steel tube, a second working steel tube and an outer protecting tube, wherein the tail end of the first working steel tube is tightly connected with the top end of the second working steel tube, and the outer protecting tube is sleeved on the outer side walls of the first working steel tube and the second working steel tube; the first working steel pipe and the second working steel pipe are sequentially connected through a joint flange plate, a pipe body and a pipe body connecting part and are integrally formed; and the pipe body connecting part of the first working steel pipe is fixedly connected with the pipe body connecting part of the second working steel pipe. The utility model discloses an this prefabricated insulating tube, simple and practical can realize prefabricated 12 meters long insulating tube in the factory to avoid in the job site through connecting the influence of 6 meters long insulating tubes of short circuit to the construction progress, also can reduce simultaneously and connect quantity.
Description
Technical Field
The utility model relates to a geothermol power is insulating tube technical field for the deep well, especially relates to a deep well of geothermol power is with prefabricated insulating tube.
Background
geothermal energy is one of clean energy sources, and extracting geothermal energy by using a mechanical drilling well to extract underground hot water is a commonly applied geothermal extraction method at present. The mechanical drilling method is used for drilling a certain water layer underground to extract underground hot water of the layer and conveying the water through the heat insulation pipe, however, the depth of the geothermal well is deep, the space is small, so that the heat insulation pipe with the length of 6 meters is needed to be connected in a short circuit mode through joints on a construction site, and the heat insulation pipe is connected into the well section by section to realize the subsequent construction process, the number of the required joints is large, and the construction progress of deep well geothermal energy is influenced by the short circuit of the heat insulation pipe on the construction site.
disclosure of Invention
The utility model discloses a main aim at solves the problem that exists among the prior art, provides a simple and practical, can realize prefabricated 12 meters of long insulating tube in the factory to avoid in the job site through connecting the influence of 6 meters of long insulating tube of short circuit to the construction progress, also can reduce the prefabricated insulating tube for the deep well of geothermol power that connects quantity simultaneously.
In order to solve the technical problem, the utility model discloses a technical scheme is: the prefabricated heat-insulating pipe for the geothermal deep well comprises a first working steel pipe, a second working steel pipe and an outer protection pipe, wherein the tail end of the first working steel pipe is fixedly connected with the start end of the second working steel pipe, and the outer protection pipe is sleeved on the outer side walls of the first working steel pipe and the second working steel pipe;
The first working steel pipe and the second working steel pipe are sequentially connected through a joint flange plate, a pipe body and a pipe body connecting part and are integrally formed;
And the pipe body connecting part of the first working steel pipe is fixedly connected with the pipe body connecting part of the second working steel pipe.
Furthermore, the connecting flange of the first working steel pipe and the connecting part of the second working steel pipe are connected with the cutting edge in a one-body forming mode, clamping grooves are formed in the connecting part of the first working steel pipe and the connecting flange of the second working steel pipe, and the structure of the connecting cutting edge is matched with the structure of the clamping grooves.
Further, the pipe body connecting part of the first working steel pipe and the pipe body connecting part of the second working steel pipe are locked and fixed through a locking assembly, and the pipe body connecting parts can be arranged to be connected with flange plates.
Further, the pipe body connecting part of the first working steel pipe is in threaded connection with the pipe body connecting part of the second working steel pipe.
Furthermore, the locking assembly can be arranged into a connecting bolt and a nut, the connecting bolt is matched with and penetrates through the two adjacent pipe body connecting parts, and the nut is connected with the connecting bolt in a threaded connection mode and tightly locks the two adjacent pipe body connecting parts.
Further, locking Assembly still can set up to stud, L type trip and lock nut, stud threaded connection is on a body connecting portion outer fringe lateral wall, and the smooth section of this stud goes up the cover and establishes the installation end of L type trip, the chucking end of L type trip compresses tightly on another body connecting portion, lock nut screw-thread fit cover compresses tightly L type trip on locating stud.
Furthermore, heat insulation structures are sleeved on the connecting portions of the joint flange and the pipe body.
Further, a sealing gasket is arranged in the connecting cutting edge in a matched mode.
Further, the outer protecting pipe is at least 200mm away from the joint flange.
Further, a polyurethane heat-insulating layer is arranged between the outer protecting pipe and the outer side wall of the pipe body.
The utility model has the advantages and positive effects that:
(1) Through the structure that the first working steel pipe and the second working steel pipe are connected and the integral outer protective pipe is sleeved outside the first working steel pipe, the 12-meter-long heat-insulating pipe can be prefabricated in a factory, so that the influence of the 6-meter-long heat-insulating pipe in a construction site on the construction progress through a short joint can be reduced, and the number of joints can be reduced.
(2) Through the design of the pipe body connecting part, the connecting cutting edge and the clamping groove in the first working steel pipe or the second working steel pipe, the first working steel pipe and the second working steel pipe can be connected, and the connection reliability of the first working steel pipe and the second working steel pipe is further guaranteed under the assistance of the structure for connecting the cutting edge and the clamping groove.
(3) Through the matching of the connecting flange plate, the connecting bolt and the nut, the reliable connection of the first working steel pipe and the second working steel pipe can be realized, and the connecting mode is simple and the cost is lower.
Drawings
Fig. 1 is a schematic structural diagram in the second embodiment of the present invention.
fig. 2 is a schematic structural diagram of the first working steel pipe of the present invention.
Fig. 3(a) is a schematic structural diagram of an arrangement manner of the locking assembly in the third embodiment of the present invention.
Fig. 3(b) is a schematic structural diagram of another arrangement of the locking assembly in the third embodiment of the present invention.
Fig. 4 is a partially enlarged schematic view of a portion of the locking assembly of fig. 3 (b).
Fig. 5 is a schematic structural diagram of another locking assembly adopted in the third embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a fourth embodiment of the present invention.
In the figure: the pipe comprises a first working steel pipe 10, a joint flange plate 101, a pipe body 102, a pipe body connecting portion 103, a connecting cutting edge 104, a clamping groove 105, a heat insulation structure 106, a second working steel pipe 20, an outer protective pipe 30, a polyurethane heat insulation layer 40, a locking assembly 50, a connecting bolt 501, a nut 502, a stud 503, an L-shaped clamping hook 504, a locking nut 505, a connecting stud 506 and a U-shaped clamping hook 507.
Detailed Description
For a better understanding of the present invention, the following further description is given in conjunction with the following embodiments and accompanying drawings.
Example one
As shown in fig. 1 and 2, the prefabricated thermal insulation pipe for the geothermal deep well comprises a first working steel pipe 10, a second working steel pipe 20 and an outer protective pipe 30, wherein the tail end of the first working steel pipe 10 is fixedly connected with the start end of the second working steel pipe 20, the outer protective pipe 30 is sleeved on the outer side walls of the first working steel pipe 10 and the second working steel pipe 20, and the prefabricated thermal insulation pipe with the length of 12 meters in a factory can be realized by connecting the first working steel pipe 10 with the second working steel pipe 20 and externally sleeving the first integral outer protective pipe 30, so that the influence of a construction progress caused by short-connecting the first working steel pipe 10 with the second working steel pipe 20 through a joint and the length of 6 meters in a construction site;
The first working steel pipe 10 and the second working steel pipe 20 are sequentially connected through a joint flange plate 101, a pipe body 102 and a pipe body connecting part 103 and are integrally formed;
And the pipe body connecting part 103 of the first working steel pipe 10 is tightly connected with the pipe body connecting part 103 of the second working steel pipe 20.
The connecting flange plate 101 of the first working steel pipe 10 and the pipe body connecting part 103 of the second working steel pipe 20 are connected with the cutting edge 104 in a one-body forming mode, the clamping grooves 105 are formed in the pipe body connecting part 103 of the first working steel pipe 10 and the connecting flange plate 101 of the second working steel pipe 20, the structure of the connecting cutting edge 104 is matched with the structure of the clamping grooves 105, the first working steel pipe 10 and the second working steel pipe 20 can be connected through the pipe body connecting part 103 of the first working steel pipe 10 or the second working steel pipe 20 and the design of the connecting cutting edge 104 and the clamping grooves 105, and the connecting reliability of the first working steel pipe 10 and the second working steel pipe 20 is further guaranteed under the assistance of.
Specifically, the joint flange 101 may be designed to be circular, triangular, rectangular or other adaptive shapes according to actual needs, and the specific connection manner between the joint flange 101 and the joint is the prior art in the field, so detailed description is omitted.
further, all overlap on joint ring flange 101 and the body connecting portion 103 and establish thermal-insulated structure 106, through thermal-insulated structure 106, can effectively reduce insulating tube and external heat-conduction in the geothermol power deep well work progress.
Specifically, the heat insulation structure 106 may be configured to include a heat insulation layer, a moisture-proof layer, and a protection layer, the heat insulation layer may be made of one of thermal insulation materials such as glass fiber, asbestos, rock wool, silicate, or aerogel felt, and the specific material of the moisture-proof layer and the protection layer may be made by the prior art, and therefore, detailed descriptions thereof are omitted.
Furthermore, a sealing gasket is arranged in the connecting cutting edge 104 in a matched mode, and leakage of working media in the construction process of the geothermal deep well can be prevented through arrangement of the sealing gasket in the connecting cutting edge 104.
Furthermore, the distance between the outer protective pipe 30 and the joint flange plate 101 is at least 200mm, and the outer protective pipe 30 and the joint flange plate 101 are arranged at a distance of at least 200mm, so that a working space can be provided for connection of the joints on a construction site.
Further, a polyurethane insulation layer 40 is disposed between the outer protective tube 30 and the outer sidewall of the tube body 102.
Specifically, the outer sheath 30 may be provided as a polyethylene outer sheath.
Example two
As shown in fig. 2, further, the pipe body connecting portion 103 of the first working steel pipe 10 and the pipe body connecting portion 103 of the second working steel pipe 20 are locked and fixed by the locking assembly 50, and the pipe body connecting portion 103 may be configured as a connecting flange.
Further, the locking assembly 50 can be provided with a connecting bolt 501 and a nut 502, the connecting bolt 501 is matched with and penetrates through the two adjacent pipe body connecting portions 103, the nut 502 is in threaded connection with the connecting bolt 501 in a sleeved mode and is used for locking the two adjacent pipe body connecting portions 103, reliable connection between the first working steel pipe 10 and the second working steel pipe 20 can be achieved through matching of the connecting flange plate, the connecting bolt 501 and the nut 502, the connecting mode is simple, and the cost is low.
specifically, the connecting flange plate and the joint flange plate 101 can be set to be the same structure, so that the production process of the first working steel pipe 10 and the second working steel pipe 20 is further simplified, the production difficulty is reduced, and the cost is saved.
EXAMPLE III
As shown in fig. 3(a), further, the pipe body connecting portion 103 of the first working steel pipe 10 and the pipe body connecting portion 103 of the second working steel pipe 20 are locked and fixed by the locking assembly 50, and the pipe body connecting portion 103 may be configured as a connecting flange.
As shown in fig. 4, further, the locking assembly 50 may further include a stud 503, an L-shaped hook 504 and a locking nut 505, the stud 503 is screwed onto the outer edge side wall of one pipe connection portion 103, and the smooth section of the stud 503 is sleeved with the mounting end of the L-shaped hook 504, the clamping end of the L-shaped hook 504 is pressed against the other pipe connection portion 103, the locking nut 505 is screwed onto the stud 503 to press the L-shaped hook 504, and the flange plate, the stud 503, the L-shaped hook 504 and the locking nut 505 are matched to each other, so that the first working steel pipe 10 and the second working steel pipe 20 can be reliably connected.
The locking assembly 50 may further include an inner hexagon bolt and an L-shaped hook 504, the inner hexagon bolt passes through the mounting end of the L-shaped hook 504 and fastens the inner hexagon bolt to the outer sidewall of one pipe connection portion 103, and the fastening end of the L-shaped hook 504 is pressed against the other pipe connection portion 103, so as to connect the two pipe connection portions 103 (not shown in the structural diagram).
Specifically, the connecting flange plate can be set to the same structure as the joint flange plate 101, so as to further simplify the production process of the first working steel pipe 10 and the second working steel pipe 20, reduce the production difficulty and save the cost, in addition, as shown in fig. 5, the locking assembly 50 can also be a connecting stud 506 and a U-shaped hook 507, the U-shaped hook 507 is clamped at the edge of the two adjacent joint flange plates 101, and the connecting stud 506 sequentially penetrates through the upper end of the U-shaped hook 507 and the lower ends of the two joint flange plates 101 and the U-shaped hook 507 from top to bottom to realize locking and fixing, so as to further reduce the heat exchange between the first working steel pipe 10 and the second working steel pipe 20 and the outside, the L-shaped hook 504 and the U-shaped hook 507 can be made of high-strength high-temperature heat insulating materials in the prior art.
As shown in fig. 3(b), the L-shaped hooks 504 may be arranged between the two tube connecting portions 103 in an inverted staggered manner, so as to further ensure the connection reliability of the two tube connecting portions 103.
Example four
As shown in fig. 6, the pipe body connecting portion 103 of the first work steel pipe 10 is screwed to the pipe body connecting portion 103 of the second work steel pipe 20.
Specifically, an external thread is formed on the connecting cutting edge 104, and an internal thread is formed in the clamping groove 105 in a matched manner, so that the two pipe connecting portions 103 are connected in a threaded manner, and the first working steel pipe 10 and the second working steel pipe 20 are connected and fixed.
use the utility model provides a deep well of geothermol power is with prefabricated insulating tube, simple and practical can realize the prefabricated 12 meters of long insulating tube in the factory to avoid in the job site through connecting the influence to the construction progress of the 6 meters of long insulating tube of short circuit, also can reduce simultaneously and connect quantity, this prefabricated insulating tube's use is as follows:
For the second embodiment, a heat insulation structure is sleeved on the connecting portion between the joint flange 101 and the pipe body 102 of the first working steel pipe 10 and the second working steel pipe 20 with the length of 6 meters, so that the connecting flanges of the first working steel pipe 10 and the second working steel pipe 20 are attached to each other, the clamping groove 105 on the connecting flange is ensured to be clamped with the connecting cutting edge 104, the connecting bolt 501 sequentially penetrates through the connecting flanges of the first working steel pipe 10 and the second working steel pipe 20, and then is connected to the penetrating portion of the connecting bolt 501 through the nut 502 and the thread, a polyurethane heat insulation layer 40 is poured or sprayed on the outer side walls of the first working steel pipe 10 and the second working steel pipe 20 with the length of 6 meters, the outer polyethylene protective pipe 30 is sleeved on the outer side wall of the polyurethane heat insulation layer 40, and the end portions of the polyurethane heat insulation layer 40 and the outer polyethylene protective pipe 30 are ensured to be at least 200mm away from the, and finally, transferring the prefabricated heat-insulating pipes with the lengths of 12 meters to a construction site of the geothermal deep well, and sequentially connecting the prefabricated heat-insulating pipes with the lengths of 12 meters by using the joints so as to realize the auxiliary work of the heat-insulating pipes in the construction of the geothermal deep well, thereby reducing the number of the joints and ensuring the construction efficiency.
For the third embodiment, a heat insulation structure is sleeved on the connecting portions of the joint flanges 101 and the pipe bodies 102 of the first working steel pipe 10 and the second working steel pipe 20 with the length of 6 meters, so that the connecting flanges of the first working steel pipe 10 and the second working steel pipe 20 are attached to each other, the clamping groove 105 on the connecting flange is ensured to be clamped with the connecting cutting edge 104, the stud 503 is in threaded connection with the side wall of the outer edge of the connecting flange, the mounting end of the L-shaped clamping hook 504 is sleeved on the smooth section of the stud 503, the clamping end of the L-shaped clamping hook 504 is pressed on the connecting portion 103 of the other pipe body, the locking nut 505 is in threaded fit with the stud 503 to press the L-shaped clamping hook 504 (or the U-shaped clamping hook 507 is clamped on the edges of the two adjacent joint flanges 101, and is sequentially in threaded connection from top to bottom through the connecting stud 506 and penetrates through the upper ends of the U-shaped clamping hook 507, the two joint flanges 101 and the lower end of the, and then pouring or spraying a polyurethane heat-insulating layer 40 on the outer side walls of the first 6 meters long working steel pipe 10 and the second working steel pipe 20, sleeving the outer side wall of the polyurethane heat-insulating layer 40 with the outer polyethylene protective pipe 30, and ensuring that the distance between the end parts of the polyurethane heat-insulating layer 40 and the outer polyethylene protective pipe 30 is at least 200mm from the joint flange plate 101, so that the assembly of the prefabricated heat-insulating pipe with the length of 12 meters in a factory is completed, finally, transferring the prefabricated heat-insulating pipe with the length of 12 meters to a geothermal deep well construction site, and sequentially connecting the prefabricated heat-insulating pipes with the length of 12 meters by using joints to realize the auxiliary work of the heat-insulating pipe in the construction of the geothermal deep well.
for the fourth embodiment, that is, the first working steel pipe 10 with the length of 6 meters or the second working steel pipe 20 is rotated to connect the two pipe body connecting parts 103 through threads, then the polyurethane heat-insulating layer 40 is poured or sprayed on the outer side walls of the first working steel pipe 10 with the length of 6 meters and the second working steel pipe 20, the outer polyethylene protective pipe 30 is sleeved on the outer side wall of the polyurethane heat-insulating layer 40, and the end parts of the polyurethane heat-insulating layer 40 and the outer polyethylene protective pipe 30 are at least 200mm away from the joint flange plate 101, so that the assembly of the prefabricated heat-insulating pipe with the length of 12 meters in a factory is completed, finally, the prefabricated heat-insulating pipe with the length of 12 meters is transported to a geothermal deep well construction site, and the prefabricated heat-insulating pipes with the length of 12 meters are sequentially connected through the joints, so as to realize the.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.
Claims (10)
1. The utility model provides a deep well of geothermal is with prefabricated insulating tube which characterized in that: the prefabricated heat-insulation pipe for the geothermal deep well comprises a first working steel pipe (10), a second working steel pipe (20) and an outer protection pipe (30), wherein the tail end of the first working steel pipe (10) is fixedly connected with the start end of the second working steel pipe (20), and the outer protection pipe (30) is sleeved on the outer side walls of the first working steel pipe (10) and the second working steel pipe (20);
the first working steel pipe (10) and the second working steel pipe (20) are sequentially connected through a joint flange plate (101), a pipe body (102) and a pipe body connecting part (103) and are integrally formed;
And the pipe body connecting part (103) of the first working steel pipe (10) is fixedly connected with the pipe body connecting part (103) of the second working steel pipe (20).
2. The prefabricated heat-insulating pipe for geothermal deep wells according to claim 1, wherein: the connecting structure is characterized in that a connecting flange (101) of the first working steel pipe (10) and a pipe body connecting part (103) of the second working steel pipe (20) are connected with a cutting edge (104) in a one-body forming mode, clamping grooves (105) are formed in the pipe body connecting part (103) of the first working steel pipe (10) and the connecting flange (101) of the second working steel pipe (20), and the structure of the connecting cutting edge (104) is matched with the structure of the clamping grooves (105).
3. The prefabricated heat-insulating pipe for a geothermal deep well according to claim 1 or 2, characterized in that: and the pipe body connecting part (103) of the first working steel pipe (10) and the pipe body connecting part (103) of the second working steel pipe (20) are locked and fixed through a locking assembly (50), and the pipe body connecting part (103) can be arranged to be a connecting flange.
4. The prefabricated heat-insulating pipe for a geothermal deep well according to claim 1 or 2, characterized in that: and the pipe body connecting part (103) of the first working steel pipe (10) is in threaded connection with the pipe body connecting part (103) of the second working steel pipe (20).
5. The prefabricated heat preservation pipe for geothermal deep well according to claim 3, characterized in that: locking Assembly (50) can set up to connecting bolt (501) and nut (502), connecting bolt (501) cooperate and pass two adjacent body connecting portion (103), nut (502) threaded connection cover is located two adjacent body connecting portion (103) of locking on connecting bolt (501).
6. The prefabricated heat preservation pipe for geothermal deep well according to claim 3, characterized in that: locking Assembly (50) still can set up to stud (503), L type trip (504) and lock nut (505), stud (503) threaded connection is on a body connecting portion (103) outer fringe lateral wall, and the smooth section of this stud (503) goes up the installation end of establishing L type trip (504) of cover, the chucking end of L type trip (504) compresses tightly on another body connecting portion (103), lock nut (505) screw-thread fit cover compresses tightly L type trip (504) on stud (503).
7. The prefabricated heat-insulating pipe for geothermal deep wells according to claim 1, wherein: and the joint flange (101) and the pipe body connecting part (103) are sleeved with heat insulation structures (106).
8. The prefabricated heat-insulating pipe for a geothermal deep well according to claim 2, characterized in that: and a sealing gasket is arranged in the connecting cutting edge (104) in a matched manner.
9. The prefabricated heat-insulating pipe for geothermal deep wells according to claim 1, wherein: the distance between the outer protective pipe (30) and the joint flange plate (101) is at least 200 mm.
10. The prefabricated heat-insulating pipe for geothermal deep wells according to claim 1, wherein: and a polyurethane heat-insulating layer (40) is arranged between the outer protecting pipe (30) and the outer side wall of the pipe body (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920248033.6U CN209781889U (en) | 2019-02-27 | 2019-02-27 | Prefabricated insulating tube for geothermal deep well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920248033.6U CN209781889U (en) | 2019-02-27 | 2019-02-27 | Prefabricated insulating tube for geothermal deep well |
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| Publication Number | Publication Date |
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| CN209781889U true CN209781889U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920248033.6U Active CN209781889U (en) | 2019-02-27 | 2019-02-27 | Prefabricated insulating tube for geothermal deep well |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764191A (en) * | 2019-02-27 | 2019-05-17 | 天津太合节能科技有限公司 | A kind of geothermal deep well is with heat preservation pipe prefabricated |
| CN114857790A (en) * | 2022-05-13 | 2022-08-05 | 浙江乾知新能源科技有限公司 | Heat preservation pipe and well descending method thereof, geothermal well heat taking structure and heat pump system |
-
2019
- 2019-02-27 CN CN201920248033.6U patent/CN209781889U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764191A (en) * | 2019-02-27 | 2019-05-17 | 天津太合节能科技有限公司 | A kind of geothermal deep well is with heat preservation pipe prefabricated |
| CN114857790A (en) * | 2022-05-13 | 2022-08-05 | 浙江乾知新能源科技有限公司 | Heat preservation pipe and well descending method thereof, geothermal well heat taking structure and heat pump system |
| CN114857790B (en) * | 2022-05-13 | 2022-11-01 | 宁波至盈节能环境工程有限公司 | Heat preservation pipe and well descending method thereof, geothermal well heat taking structure and heat pump system |
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