CN211782068U

CN211782068U - Composite type middle-deep geothermal well pump chamber pipe

Info

Publication number: CN211782068U
Application number: CN202020270507.XU
Authority: CN
Inventors: 王银生; 贾艳雨
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-08
Filing date: 2020-03-08
Publication date: 2020-10-27
Anticipated expiration: 2030-03-08

Abstract

The utility model discloses a deep geothermal well pump room pipe in combined type, including outer tube and inner tube, the inner tube is cup jointed by the outer tube, forms the clearance between outer tube and the inner tube, and the top of inner tube is equipped with the pumping pipe of raising back through threaded connection, and the top and the well head of outer tube are connected, and the one end of well head is connected and is equipped with the water pipe of watering, and the other end of water pipe of watering connects in parallel with the pumping pipe of raising back, is equipped with the valve on the water pipe of watering, and the bottom connection of inner tube is equipped with the immersible pump, is equipped with the. One set of device and one set of production processes can realize two kinds of functions of raising back and recharging, and is convenient, swift, safe, has saved vehicle cost, cost of labor greatly, has improved production efficiency.

Description

Composite type middle-deep geothermal well pump chamber pipe

Technical Field

The utility model relates to a geothermal resources exploitation utilizes the field, concretely relates to deep geothermal well pump room pipe in combined type.

Background

In the prior art, geothermal water flows into the position below the liquid level through a steel pipe connected with a wellhead device of a geothermal recharging well after heat exchange on the ground, and then is recharged to the stratum. After the lower stratum channel is refilled for a period of time, the lower stratum channel is partially blocked, the refilling amount is reduced, the water raising pipe needs to be lifted out, the water raising pipe is connected with the submersible pump and then is lowered into the liquid level of the geothermal well again for water raising and raising, and the lower channel can be dredged by raising the water raising pipe for 12 to 24 hours mostly. At present, the static liquid level of most geothermal wells in China is generally 30-70 meters when water is not pumped, the dynamic liquid level of most geothermal wells in China is generally 50-120 meters when water is pumped, and the length of a water raising pipe is generally designed to be 100 meters, so that the actual production requirement can be met.

However, the existing pumping pipe has only a single function, i.e. only recharging or pumping can be realized, and when another function is needed, a large crane and personnel are needed to lift the pumping pipe out, remove the submersible pump (recharging) or connect the submersible pump (pumping), so that the cost, labor, time and the like are greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a defect to prior art existence provides a combined type middle and deep geothermal well pump room pipe, with this pipe together with the immersible pump down below the liquid level, can satisfy normal recharge, when needing to be raised back, as long as start the immersible pump power on ground and can realize raising back.

The technical scheme is as follows: composite type middle-deep geothermal well pump chamber pipe, including outer tube and inner tube, the inner tube is cup jointed by the outer tube, forms the clearance between outer tube and the inner tube, and the top of inner tube is equipped with the pumping back water pipe through threaded connection, and the top and the well head of outer tube are connected, and the one end connection of well head is equipped with the water pipe of watering back, and the other end of the water pipe of watering back is parallelly connected with the pumping back water pipe, is equipped with the valve on the water pipe of watering back, and the bottom connection of inner tube is equipped with the immersible pump, is.

The pore canal is positioned below the liquid level of underground water, and the submersible pump is connected with a power supply on the ground through a cable.

Compared with the prior art, the utility model, have following advantage: one set of device and one set of production processes can realize two kinds of functions of raising back and recharging, and is convenient, swift, safe, has saved vehicle cost, cost of labor greatly, has improved production efficiency.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

Referring to fig. 1, deep geothermal well pump room pipe in combined type, including outer tube 1 and inner tube 2, inner tube 2 is cup jointed by outer tube 1, form the clearance between outer tube 1 and the inner tube 2, the top of inner tube 2 is equipped with the pumping pipe 3 that rises back through threaded connection, the top and the well head 8 of outer tube 1 are connected, the one end of well head 8 is connected and is equipped with the water pipe 4 that waters back, the other end of the water pipe 4 that waters back is parallelly connected with the pumping pipe 3 that rises back, be equipped with valve 5 on the water pipe 4 that waters back, the bottom of inner tube 2 is connected and is equipped with immersible pump 7, be equipped with pore 6.

The pore canal 6 is positioned below the liquid level of underground water, and the submersible pump 7 is connected with a power supply on the ground through a cable.

The working principle is as follows: when the underground recharge water is poured, the valve 5 is opened, the water is injected into a wellhead 8 through the recharge water pipe 4, then the water flows into an annular space between the inner pipe 2 and the outer pipe 1, and then the water is injected into a well through the pore 6 designed in the outer pipe 1, so that the recharge is realized. When pumping water in the pumping water, the valve 5 is closed, the power supply is switched on to enable the submersible pump 7 to work, well water is output to the pumping water pumping pipe 3 from the inner pipe 2 and is discharged, and the recharge water and the pumping water are independent and do not conflict with each other.

Claims

1. Compound type middle-deep geothermal well pump chamber pipe, its characterized in that: including outer tube (1) and inner tube (2), inner tube (2) are cup jointed by outer tube (1), form the clearance between outer tube (1) and inner tube (2), the top of inner tube (2) is equipped with back-up drinking-water pipe (3) through threaded connection, the top and wellhead (8) of outer tube (1) are connected, the one end connection of wellhead (8) is equipped with back-irrigation water pipe (4), the other end of back-irrigation water pipe (4) with back-up drinking-water pipe (3) and connect in parallel, be equipped with valve (5) on back-irrigation water pipe (4), the bottom connection of inner tube (2) is equipped with immersible pump (7), be equipped with pore (6) on the bottom pipe wall of outer tube (1).

2. The composite mid-deep geothermal well pumping chamber tube of claim 1, wherein: the pore canal (6) is positioned below the liquid level of underground water, and the submersible pump (7) is connected with a power supply on the ground through a cable.