CN214273968U

CN214273968U - Geothermal well protective structure

Info

Publication number: CN214273968U
Application number: CN202023351454.3U
Authority: CN
Inventors: 黄开拓; 梁之豪; 陈金; 孙俊峰; 张浩然; 张艳娜; 孙江涛; 黄磊; 胡永明; 韩静
Original assignee: Henan Provincial Geological Environment Planning & Designing Co ltd
Current assignee: Henan Provincial Geological Environment Planning & Designing Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-24
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a geothermal well protection structure, belonging to the technical field of geothermal extraction devices, which mainly adopts the technical proposal that the geothermal well protection structure comprises a water pumping pipe arranged in a geothermal well and a water pumping pump, wherein one end of the water pumping pipe is communicated with a water inlet of the water pumping pump; the drinking-water pipe deviates from the tip setting of suction pump is in the below of geothermol power well liquid level installs the branch pipe on the drinking-water pipe, and the branch pipe is linked together with the drinking-water pipe, and the tip that the branch pipe deviates from the drinking-water pipe is located the top of geothermol power well liquid level, install the controlling means that can control drinking-water pipe and branch pipe break-make in the geothermol power well. This application has when the geothermal well internal water level rises, carries out the effect of protection to pumping equipment.

Description

Geothermal well protective structure

Technical Field

The application relates to the technical field of geothermal extraction devices, in particular to a geothermal well protection structure.

Background

Geothermal energy is natural heat energy extracted from the earth's crust, which comes from lava rock inside the earth and exists in the form of heat, which is energy that causes volcanic eruptions and earthquakes. A drilled well that extracts thermal resources below the surface (mainly natural steam, hot water, hot brine, etc.) is called a geothermal well.

At present, patent document with publication number CN206683259U discloses a heat energy extraction system for a waste geothermal well, which comprises a casing pipe disposed in the waste geothermal well, wherein the side wall of the casing pipe is attached to the wall of the waste geothermal well; a cover plate is arranged in the waste geothermal well, and a closed cavity is defined among the cover plate, the side wall of the sleeve and the bottom of the sleeve; the closed cavity is connected with a water inlet pipe and a water outlet pipe, the water inlet pipe penetrates through the cover plate and is connected to the bottom of the closed cavity, and the water outlet pipe is connected to the outside of the waste geothermal well from the top of the closed cavity; the water inlet pipe is provided with a high-pressure water pump.

In view of the above-mentioned related art, the inventor believes that a rapid rise phenomenon occurs in a short time when the water level in the geothermal well is affected by natural conditions, which easily causes damage to the pumping equipment in the underground, and the above-mentioned waste geothermal well does not have a function of protecting the equipment, and thus needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to protect pumping equipment when the water level in the geothermal well rises, the application provides a geothermal well protection structure.

The application provides a geothermal well protective structure adopts following technical scheme:

a geothermal well protection structure comprises a water pumping pipe and a water pumping pump, wherein the water pumping pipe is installed in a geothermal well, and one end of the water pumping pipe is communicated with a water inlet of the water pumping pump; the drinking-water pipe deviates from the tip setting of suction pump is in the below of geothermol power well liquid level installs the branch pipe on the drinking-water pipe, and the branch pipe is linked together with the drinking-water pipe, and the tip that the branch pipe deviates from the drinking-water pipe is located the top of geothermol power well liquid level, install the controlling means that can control drinking-water pipe and branch pipe break-make in the geothermol power well.

Through adopting above-mentioned technical scheme, the suction pump work can be taken the hot water of geothermal well below through the drinking-water pipe out, when the water level short time of geothermal well rose, uses controlling means to cut the drinking-water pipe, uses controlling means to open the branch pipe, so the suction pump will only be able to extract the atmosphere through the branch pipe, avoids taking out the water in the geothermal well, has realized carrying out the function protected to the pumping equipment in the geothermal well.

Optionally, the control device includes a water pumping valve installed on the water pumping pipe and used for controlling the on-off of the water pumping pipe, and further includes an air pumping valve installed on the branch pipe and used for controlling the on-off of the branch pipe.

Through adopting above-mentioned technical scheme, when needs cut off the drinking-water pipe, close the valve of drawing water and can realize cutting the drinking-water pipe promptly, when needs cut off the branch pipe, close the valve of managing to find time and can cut the branch pipe.

Optionally, the water pumping valve is provided with a valve rod capable of controlling the on-off of the water pumping valve through rotation, and the evacuation valve is also provided with a valve rod capable of controlling the on-off of the evacuation valve through rotation; the control device further comprises a pumping gear fixedly arranged on a valve rod of the pumping valve and an evacuating gear fixedly arranged on the valve rod of the evacuating valve, and the control device further comprises a control assembly capable of driving the pumping gear and the evacuating gear to rotate according to the lifting of the water surface in the geothermal well.

By adopting the technical scheme, after the water level in the geothermal well rises, the control assembly can drive the pumping gear and the evacuating gear to rotate, the pumping gear is fixed on the valve rod of the pumping valve, and the evacuating gear is fixed on the valve rod of the evacuating valve, so that the valve rod can be driven to rotate to close the pumping valve by the rotation of the pumping gear, and the valve rod can be driven to close the evacuating valve by the rotation of the evacuating gear.

Optionally, the control assembly includes a control float placed on the water surface in the geothermal well, and further includes a control rod detachably and fixedly mounted on the control float, and a pumping rack and an evacuation rack fixedly disposed on the control rod, the pumping rack is engaged with the pumping gear, and the evacuation rack is engaged with the evacuation gear.

By adopting the technical scheme, after the water level in the geothermal well rises, the floater is controlled to move upwards to drive the control rod to move upwards, and the water pumping rack and the evacuating rack are fixed on the control rod and are respectively meshed with the water pumping gear and the evacuating gear, so that the purpose of driving the water pumping gear and the evacuating gear to rotate can be realized by controlling the floater to move upwards.

Optionally, the control assembly further comprises a limiting sleeve fixed on the inner wall of the geothermal well, and the control floater is connected in the limiting sleeve in a vertical sliding mode.

Through adopting above-mentioned technical scheme, limit sleeve can restrict the position that the control float reciprocated, avoids the control float to take place the skew and leads to pumping rack and pumping gear to break away from mutually, perhaps evacuates that rack and evacuation gear break away from mutually.

Optionally, a screw rod is fixedly arranged at the end of the control rod, a threaded hole is formed in the control float, and the screw rod is in threaded connection with the threaded hole.

Through adopting above-mentioned technical scheme, when the position of needs to the control lever was adjusted, rotate the control lever and can drive the screw rod at the screw hole internal rotation, change the screw rod and can adjust the control lever for the position of control float at the downthehole volume of precession of screw rod, realize changing the purpose of control lever position.

Optionally, scales are arranged on the control rod.

Through adopting above-mentioned technical scheme, can carry out accurate settlement to the length that the control lever stretches out from limiting sleeve on observing the corresponding scale of limiting sleeve on the control lever.

Optionally, a master control valve capable of controlling the on-off of the water pumping pipe is installed on the water pumping pipe.

Through adopting above-mentioned technical scheme, the user can close whole drinking-water pipe through total accuse valve, realizes carrying out the purpose controlled to whole water pipe break-make.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the water suction pump can pump hot water below the geothermal well through the water suction pipe, when the water level of the geothermal well rises in a short time, the water suction pipe is cut off by using the control device, and the branch pipe is opened by using the control device, so that the water suction pump can only pump the atmosphere through the branch pipe, the water in the geothermal well is prevented from being pumped out, and the function of protecting the water suction equipment in the geothermal well is realized;

2. when the water level in the geothermal well rises, the control floater moves upwards to drive the control rod to move upwards, and the water pumping rack and the evacuating rack are fixed on the control rod and are respectively meshed with the water pumping gear and the evacuating gear, so that the purpose of driving the water pumping gear and the evacuating gear to rotate can be realized by controlling the floater to move upwards, and the water pumping valve and the evacuating valve are closed.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic view of a portion of the structure at a in fig. 1.

Description of reference numerals: 1. a water pumping pipe; 11. a master control valve; 2. a water pump; 3. a control device; 31. a water pumping valve; 311. a water pumping gear; 32. an evacuation valve; 321. an evacuation gear; 33. a limiting sleeve; 331. a support bar; 332. a through hole; 333. a travel switch; 34. a control float; 341. a threaded hole; 35. a control lever; 351. a water pumping rack; 352. evacuating the rack; 353. a screw; 354. calibration; 4. and (4) branch pipes.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses geothermal well protective structure. Referring to fig. 1, geothermal well protective structure is including installing in the geothermal well, the drinking-water pipe 1 that is used for drawing water, still includes suction pump 2 to and can control the controlling means 3 of 1 break-make of drinking-water pipe, wherein, the one end of drinking-water pipe 1 is located the top on ground, and with the fixed intercommunication of the water inlet of suction pump 2, the other end of drinking-water pipe 1 is located in the pit, and set up the below at the surface of water in the geothermal well, during the use, start water pump 2 and can take out the water in the geothermal well through drinking-water pipe 1.

Referring to fig. 1, a branch pipe 4 is arranged on a water pumping pipe 1, the branch pipe 4 is fixed and communicated with the water pumping pipe 1, the end of the branch pipe 4 away from the water pumping pipe 1 is located above the liquid level in a geothermal well, a control device 3 comprises a water pumping valve 31 installed on the water pumping pipe 1 and used for controlling the on-off of the water pumping pipe 1, and further comprises an evacuation valve 32 installed on the branch pipe 4 and used for controlling the on-off of the branch pipe 4, the water pumping valve 31 is provided with a valve rod capable of controlling the on-off of the water pumping valve 31 through rotation, the evacuation valve 32 is also provided with a valve rod capable of controlling the on-off of the evacuation valve 32 through rotation, and in this embodiment, the water pumping valve 31 and the evacuation valve 32 are both ball valves.

Referring to fig. 1, the control device 3 further includes a pumping gear 311 coaxially and fixedly disposed on a valve rod of the pumping valve 31, and further includes an evacuation gear 321 coaxially and fixedly disposed on a valve rod of the evacuation valve 32, the control device 3 further includes a limit sleeve 33, the limit sleeve 33 is a cylinder of a cavity structure and is vertically disposed, an upper end of the limit sleeve 33 is closed and a lower end of the limit sleeve 33 is open, a lower end opening of the limit sleeve 33 penetrates into a lower portion of a liquid level in the geothermal well, an upper end of the limit sleeve 33 is located above the liquid level in the geothermal well, a support rod 331 is connected between the limit sleeve 33 and a wall of the geothermal well, one end of the support rod 331 is fixed on an outer wall of the limit sleeve 33, the other end of the support rod 331 is fixed on the wall of the geothermal well, and the limit sleeve 33 keeps its position relatively fixed with the wall of the geothermal well through the support rod 331.

Referring to fig. 1 and 2, control device 3 still includes the control float 34 of wearing to establish in stop sleeve 33, control float 34 is cylindrical structure and floats in the top of geothermol power well liquid level, control float 34 is sliding connection in stop sleeve 33 from top to bottom, control device 3 still includes detachable fixed mounting's control lever 35 on control float 34, control lever 35 is the round bar, through-hole 332 has been seted up to stop sleeve 33's upper end, control lever 35 passes through-hole 332 and stretches the top of stop sleeve 33, the lift of geothermol power well liquid level can drive control float 34 and go up and down and then drive control lever 35 and reciprocate.

Referring to fig. 1, the control device 3 further includes a pumping rack 351 and an evacuation rack 352 fixedly disposed on a portion of the control rod 35 above the limiting sleeve 33, the pumping rack 351 and the evacuation rack 352 are both arranged along the length direction of the control rod 35, the pumping rack 351 is engaged with the pumping gear 311, the evacuation rack 352 is engaged with the evacuation gear 321, when the liquid level in the geothermal well rises in a short time, the control float 34 moves upward to drive the control rod 35 to move upward, so that the pumping rack 351 and the evacuation rack 352 move upward, because the pumping rack 351 is engaged with the pumping gear 311, the evacuation rack 352 is engaged with the evacuation gear 321, so that the pumping rack 351 can drive the pumping gear 311 to rotate, and then drive the valve rod of the pumping valve 31 to rotate to close the pumping valve 31, the evacuation rack 352 can drive the evacuation gear 321 to rotate, and then drive the valve rod of the evacuation valve 32 to rotate to open the evacuation valve 32, at the moment, the water suction pump 2 can only pump air, and the purpose of protecting equipment is achieved.

Referring to fig. 1 and 2, in order to adjust the height of the control rod 35, a screw 353 is fixedly disposed at the lower end of the control rod 35, the screw 353 is a circular rod and has a thread on an outer wall thereof, the screw 353 is disposed along the length direction of the control rod 35, a threaded hole 341 is disposed on the upper end surface of the control float 34, the screw 353 is threadedly connected in the threaded hole 341, a user can adjust the height of the control rod 35 by rotating the control rod 35 to change the relative position between the control rod 35 and the control float 34, a scale 354 is disposed on the control rod 35, the scale 354 is disposed along the length direction of the control rod 35, and the user can accurately determine the height of the control rod 35 by observing the scale 354.

Referring to fig. 1, a master control valve 11 is installed on a pumping pipe 1 and used for controlling the on-off of the pumping pipe 1, in this embodiment, the master control valve 11 is an electromagnetic valve, the on-off of the whole pumping pipe 1 pipeline can be controlled by controlling the on-off of the master control valve 11, in addition, a travel switch 333 is arranged on the top surface of the inner cavity of the limiting sleeve 33, and when the control float 34 moves upwards to contact with the top of the inner cavity of the limiting sleeve 33, the control float 34 can trigger the travel switch 333.

The implementation principle of a geothermal well protective structure of the embodiment of the application is as follows: when the water level in the geothermal well rises, the control float 34 moves upwards in the limiting sleeve 33, so that the control rod 35 is driven to move upwards, the control rod 35 drives the pumping gear 311 to rotate through the pumping rack 351 fixed on the control rod, the pumping gear 321 is driven to rotate through the pumping rack 352 fixed on the control rod, so that the pumping valve 31 is closed, the pumping valve 32 is opened, at the moment, the pumping pump 2 is communicated with the atmosphere through the branch pipe 4 when pumping water through the pumping pipe 1, the water path is cut off, the pumping pump 2 pumps the water, and the equipment is protected.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A geothermal well protection structure comprises a water pumping pipe (1) arranged in a geothermal well and a water pumping pump (2), wherein one end of the water pumping pipe (1) is communicated with a water inlet of the water pumping pump (2); the method is characterized in that: the utility model discloses a geothermol power well, including geothermol power well liquid level, drinking-water pipe (1) deviates from the tip setting of suction pump (2) is in the below of geothermol power well liquid level installs branch pipe (4) on drinking-water pipe (1), and branch pipe (4) are linked together with drinking-water pipe (1), and the tip that branch pipe (4) deviate from drinking-water pipe (1) is located the top of geothermol power well liquid level, install controlling means (3) that can control drinking-water pipe (1) and branch pipe (4) break-make in the geothermol power well.

2. A geothermal well protective structure according to claim 1, wherein: the control device (3) comprises a water pumping valve (31) which is arranged on the water pumping pipe (1) and used for controlling the on-off of the water pumping pipe (1), and further comprises an air pumping valve (32) which is arranged on the branch pipe (4) and used for controlling the on-off of the branch pipe (4).

3. A geothermal well protective structure according to claim 2, wherein: the water pumping valve (31) is provided with a valve rod which can control the on-off of the water pumping valve (31) through rotation, and the air evacuation valve (32) is also provided with a valve rod which can control the on-off of the air evacuation valve (32) through rotation; the control device (3) further comprises a water pumping gear (311) fixedly arranged on a valve rod of the water pumping valve (31), and further comprises an evacuation gear (321) fixedly arranged on a valve rod of the evacuation valve (32), and the control device (3) further comprises a control assembly capable of driving the water pumping gear (311) and the evacuation gear (321) to rotate according to the lifting of the water surface in the geothermal well.

4. A geothermal well protective structure according to claim 3, wherein: the control assembly comprises a control float (34) placed on the water surface in the geothermal well, a control rod (35) detachably and fixedly arranged on the control float (34), and a pumping rack (351) and an evacuation rack (352) fixedly arranged on the control rod (35), wherein the pumping rack (351) is meshed with the pumping gear (311), and the evacuation rack (352) is meshed with the evacuation gear (321).

5. A geothermal well protective structure according to claim 4, wherein: the control assembly further comprises a limiting sleeve (33) fixed on the inner wall of the geothermal well, and the control floater (34) is connected into the limiting sleeve (33) in a vertical sliding mode.

6. A geothermal well protection structure according to claim 4 or 5, wherein: the end part of the control rod (35) is fixedly provided with a screw rod (353), a threaded hole (341) is formed in the control float (34), and the screw rod (353) is in threaded connection with the threaded hole (341).

7. A geothermal well protective structure according to claim 6, wherein: scales (354) are arranged on the control rod (35).

8. A geothermal well protective structure according to any one of claims 1 to 5, wherein: the water pumping pipe (1) is provided with a master control valve (11) capable of controlling the on-off of the water pumping pipe (1).