CN219281697U

CN219281697U - Isolated antirust water taking device for self-flowing geothermal well

Info

Publication number: CN219281697U
Application number: CN202223168725.0U
Authority: CN
Inventors: 林峰
Original assignee: Hubei Dida Heat Energy Technology Co ltd
Current assignee: Hubei Dida Heat Energy Technology Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-06-30
Anticipated expiration: 2032-11-28

Abstract

The utility model provides an isolated antirust water taking device for a self-flowing geothermal well, which comprises a wellhead seat, a water taking pipe, an isolating sleeve and a water taking head, wherein the water taking pipe is arranged on the wellhead seat; the upper end of the water intake pipe is provided with a suspension head, the water intake pipe is arranged in the geothermal well, the water intake pipe is suspended to the upper end of the inner wall of the geothermal well, the wellhead seat is provided with a compression flange, the lower end of the isolation sleeve is supported on the suspension head, the upper end of the isolation sleeve passes through the compression flange, and the isolation sleeve is compressed on the suspension head by the compression flange; the water intake head is connected to the upper end of the isolation sleeve, and a plurality of water intake ports are arranged on the water intake head. The beneficial effects of the utility model are as follows: the upper end of the water intake pipe of the water intake device is provided with the isolation sleeve, the isolation head and the hanger at the upper end of the water intake pipe can separate the geothermal water in the geothermal well from underground, so that the direct contact between the inner wall of the wellhead seat at the upper end of the geothermal well and the outer wall of the isolation sleeve and the geothermal water is ensured, the waterproof and rust-proof effects are achieved, and the service life of the geothermal well inlet device is prolonged.

Description

Isolated antirust water taking device for self-flowing geothermal well

Technical Field

The utility model relates to the technical field of geothermal energy exploitation devices, in particular to an isolated antirust water taking device for a self-flowing geothermal well.

Background

Geothermal wells are a facility for extracting geothermal water from the ground to achieve geothermal utilization; the geothermal well is divided into a gravity flow well and a pumping well, the water pressure in the gravity flow well is higher, and the geothermal water in the gravity flow well can be directly sprayed out from a wellhead; the geothermal water in the gravity flow well has higher water level, the geothermal water is directly contacted with the wellhead device (wellhead seat and the like) arranged in the geothermal well, the high temperature of the geothermal water and the geothermal water which is rich in corrosive components (mainly chloride ions, dissolved oxygen, sulfate ions, hydrogen sulfide, carbon dioxide, ammonia, total solids and the like) of higher degree easily cause the corrosion of the wellhead device of the geothermal well, and the wellhead device is difficult to replace because of the permanent equipment, so that the service life of the geothermal water is prolonged, and the water taking device capable of preventing the corrosion is needed.

Disclosure of Invention

In view of the above, the utility model provides an isolated antirust water intake device for a self-flowing geothermal well, which comprises a wellhead seat, a water intake pipe, an isolation sleeve and a water intake head;

the upper end of the water intake pipe is provided with a suspension head, the water intake pipe is arranged in the geothermal well, and the water intake pipe is suspended to the upper end of the inner wall of the geothermal well,

the wellhead seat comprises a fixed disc and a supporting seat, the fixed disc is fixed on the wellhead, the supporting seat is fixed on the fixed disc, and the upper end of the supporting seat is provided with a compression flange;

the lower end of the isolation sleeve is supported on the suspension head, the upper end of the isolation sleeve penetrates through the compression flange, and the isolation sleeve is compressed on the suspension head by the compression flange;

the water intake head is connected to the upper end of the isolation sleeve, and a plurality of water intake ports are arranged on the water intake head.

Further, the device also comprises a hanger which is hung on the upper part of the geothermal well, the lower end of the water intake pipe extends to the lower part of the hanger, and the water intake pipe is hung on the hanger through the hanging head.

Further, the upper end opening of the suspension head is a horn mouth, the lower end of the isolation sleeve is provided with an elastic sealing ring, and the elastic sealing ring is pressed in the upper end opening of the suspension head by the isolation sleeve.

Further, a plurality of anchoring holes are formed in the edge of the fixed disc, an anchoring rod is arranged in each anchoring hole, and the fixed disc is fixed at the wellhead of the geothermal well by the anchoring rod.

Further, a filter is further arranged at the bottom of the water intake pipe, the filter comprises a filter pipe, the filter pipe is connected with the water intake pipe, and a plurality of filter sieve holes are formed in the filter pipe.

Further, a plurality of supporting bars which are vertically arranged and distributed at intervals are arranged on the outer side of the filter tube, a plurality of circles of filter wires are wound on the supporting bars, and the filter wires are relatively arranged up and down and distributed at intervals.

The isolated antirust water taking device for the self-flowing geothermal well has the beneficial effects that: the upper end of the water intake pipe of the water intake device is provided with the isolation sleeve, the isolation head and the hanger at the upper end of the water intake pipe can separate the geothermal water in the geothermal well from underground, so that the inner wall of the wellhead seat at the upper end of the geothermal well and the outer wall of the isolation sleeve are isolated and directly contacted with the geothermal water, and corrosive components in the geothermal water are prevented from corroding the outer walls of the wellhead seat and the isolation sleeve to rust the wellhead seat and the isolation sleeve, thereby prolonging the service life of the geothermal well.

Drawings

FIG. 1 is a schematic diagram of an isolated rust-proof water intake device for a self-flowing geothermal well according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of a filter of an isolated rust-proof water intake device for a self-flowing geothermal well according to an embodiment of the present utility model.

In the figure: 1-geothermal well, 11-reinforcement layer, 2-wellhead seat, 21-die holder, 22-anchor rod, 3-isolation sleeve, 31-clamp ring, 32-elastic sealing ring, 33-isolation valve, 4-water intake, 41-water intake, 5-locking flange, 6-water intake, 61-suspension head, 7-suspension device, 8-filter tube, 81-filter screen mesh, 82-support bar, 83-filter winding wire.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be further described with reference to the accompanying drawings.

Referring to fig. 1 and 2, an isolated rust-proof water intake device for a self-flowing geothermal well comprises a wellhead seat 2, an isolation sleeve 3, a water intake head 4, a water intake pipe 6 and a hanger 7.

The well mouth of the geothermal well 1 is internally provided with a reinforcement layer of a concrete structure, in the embodiment, the reinforcement layer is of a ladder structure, the hanger 7 is arranged in the geothermal well 1 and is supported on the ladder structure of the reinforcement layer, the hanger 7 is of a ring structure, and the outer wall of the hanger is provided with a rubber layer; the upper end of the water intake pipe 6 is provided with a suspension head 61, the upper end of the suspension head 61 is provided with an opening, the water intake pipe 6 is arranged in the geothermal well 1, the lower end of the water intake pipe 6 extends to the lower side of the suspension device 7, the suspension head 61 of the water intake pipe 6 is supported on the suspension device 7, the suspension device 7 seals geothermal water in the geothermal well 1 below the suspension device 7, the lower end of the water intake pipe 6 is provided with a filter 8, and geothermal water in the geothermal well 1 enters the water intake pipe 6 after being filtered by the filter 8.

The wellhead seat 2 comprises a fixed disc 21 and a supporting seat, the fixed disc 21 is fixed at the wellhead of the geothermal well 1, a plurality of anchoring holes are formed in the edge of the fixed disc 21, an anchoring rod 22 is arranged in each anchoring hole, the anchoring rod 22 fixes the fixed disc 21 at the wellhead of the geothermal well 1, the supporting seat is of a circular sleeve structure, the lower part of the supporting seat is connected to the fixed disc 21, a connecting flange is fixedly arranged at the upper end of the supporting seat, a locking flange 5 is arranged on the connecting flange, and a locking hole is formed in the locking flange 5.

The isolation sleeve 3 is a hollow sleeve body, the lower end of the isolation sleeve is supported on a hanging head 61 of the water intake pipe 6, so that the isolation sleeve is communicated with the water intake pipe, the upper end of the isolation sleeve passes through the locking hole, a circle of raised compression ring 31 is arranged on the outer wall of the isolation sleeve 3, the edge of the locking hole compresses the compression ring 31, the isolation sleeve 3 is vertically locked by the locking flange 5, the water intake head 4 is connected with the upper end of the isolation sleeve 3 through threads, a plurality of water intake ports 41 are arranged on the water intake head 4, and the water intake ports 41 are used for connecting a water pipe, so that geothermal water is conveyed into a water device through the water pipe, and the water intake process of geothermal water is completed.

Further, an isolation valve 33 is further arranged in the middle of the isolation sleeve 3, the isolation valve 33 is closed to enable the isolation sleeve 3 to convey water flow of the water intake head, and the isolation valve 33 is located above the locking flange 5.

Further, the upper end opening of the suspension head 61 is a bell mouth, the lower end of the isolation sleeve 3 is provided with an elastic sealing ring 32, the elastic sealing ring 32 is made of rubber, the elastic sealing ring 32 is of a corrugated sleeve structure, the elastic sealing ring 32 is connected to the lower end of the isolation sleeve 3 through a vulcanization process, the elastic sealing ring 32 is pressed in the upper end opening of the suspension head 61 by the isolation sleeve 3, the elastic sealing ring 32 is used for enabling the lower end of the isolation sleeve 3 to be in sealing connection with the upper end of the water intake pipe 6, and therefore a cavity between the outer wall of the isolation sleeve 3 and the inner wall of the wellhead seat 2 is a sealed cavity (geothermal water in the outer wall of the isolation sleeve 3 and the wellhead seat 2 is evacuated after the installation of the water intake device is completed).

Further, a filter is further arranged at the bottom of the water intake pipe 6, the filter comprises a filter pipe 8, the filter pipe 8 is connected with the water intake pipe 6, and a plurality of filter holes 81 are formed in the filter pipe 8. The utility model discloses a filter tube, including filter tube 8, support bar 82, filter tube 8 outside is equipped with a plurality of vertical settings and interval distribution's support bar 82, the winding has multiturn filter wire 83 on the support bar 82, filter wire 83 sets up about relative and interval distribution, support bar 82 is the steel reinforcement strip, filter wire 83 is the steel wire, support bar 82 welding and filter tube 8 outer wall, filter wire 83 welds on support bar 82, forms the filtration clearance between the adjacent filter wire 83 and can prevent that geothermal aquatic gravel from getting into in the intake pipe 6, has reached the mesh of filtering solid impurity in the geothermal water.

The isolated antirust water taking device for the self-flowing geothermal well, which is implemented by the utility model, has the following isolated antirust principle when taking water: the water intake pipe 6 extends into the underground of the geothermal well 1, and water in the geothermal well 6 enters the water intake pipe 6 through the filter; the hanger 7 is positioned at the upper end of the water intake pipe 6, the hanger 7 enables water in the geothermal well to flow below the isolator 7, the lower end of the isolation sleeve 3 is supported in an opening at the upper end of the water intake pipe 6 through the elastic sealing ring 32 and is tightly pressed by the locking flange 5, so that geothermal water in the geothermal well directly enters the water intake head 4 through the water intake pipe 6 and the isolation sleeve 3; therefore, the problems that the service life of the wellhead device of the geothermal well 1 is reduced due to the fact that the inner wall of the wellhead seat 2 and the outer wall of the isolation sleeve 3 at the upper end of the geothermal well 1 are isolated and directly contacted with geothermal water and corrosive components in the geothermal water and the high temperature corrode the outer walls of the wellhead seat 2 and the isolation sleeve 3 to cause the wellhead seat 2 and the isolation sleeve 3 to rust can be avoided.

In this document, terms such as front, rear, upper, lower, etc. are defined with respect to the positions of the components in the drawings and with respect to each other, for clarity and convenience in expressing the technical solution. It should be understood that the use of such orientation terms should not limit the scope of the protection sought herein.

The embodiments described above and features of the embodiments herein may be combined with each other without conflict.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. A isolated rust-resistant water intaking device for gravity flow geothermal well, its characterized in that: comprises a wellhead seat, a water intake pipe, an isolation sleeve and a water intake head;

2. The isolated rust-proof water intake device for a self-flowing geothermal well of claim 1, wherein: the underground heat well heat pipe is characterized by further comprising a hanger, wherein the hanger is hung on the upper portion of the underground heat well, the lower end of the water intake pipe extends to the lower portion of the hanger, and the water intake pipe is hung on the hanger through the hanging head.

3. The isolated rust-proof water intake device for a self-flowing geothermal well of claim 1, wherein: the upper end opening of the suspension head is a horn mouth, the lower end of the isolation sleeve is provided with an elastic sealing ring, and the elastic sealing ring is pressed in the upper end opening of the suspension head by the isolation sleeve.

4. The isolated rust-proof water intake device for a self-flowing geothermal well of claim 1, wherein: the edge of the fixed disc is provided with a plurality of anchoring holes, an anchoring rod is arranged in each anchoring hole, and the anchoring rod fixes the fixed disc at the wellhead of the geothermal well.

5. The isolated rust-proof water intake device for a self-flowing geothermal well of claim 1, wherein: the filter is characterized in that a filter is further arranged at the bottom of the water intake pipe and comprises a filter pipe, the filter pipe is connected with the water intake pipe, and a plurality of filter holes are formed in the filter pipe.

6. The isolated rust-proof water intake device for a self-flowing geothermal well of claim 5, wherein: the filter tube is characterized in that a plurality of supporting bars which are vertically arranged and distributed at intervals are arranged on the outer side of the filter tube, a plurality of rings of filter wires are wound on the supporting bars, and the filter wires are relatively arranged up and down and distributed at intervals.