CN212511378U

CN212511378U - Wellhead device special for geothermal heating

Info

Publication number: CN212511378U
Application number: CN202021064208.7U
Authority: CN
Inventors: 吕鹏飞; 荆帅; 潘宁; 刘力; 董静静
Original assignee: Sinopec Green Energy Geothermal Shandong Development Co Ltd
Current assignee: Sinopec Green Energy Geothermal Shandong Development Co Ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-02-09
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a special well head device of geothermal heating belongs to geothermal heating technical field. A wellhead device special for geothermal heating comprises a wellhead body, wherein a well seat is fixedly connected to the wellhead body, the well seat is fixedly connected to the ground, a water outlet pipe and a recharge pipe are fixedly connected to the inside of the well seat, a flushing pipe is fixedly connected between the water outlet pipe and the recharge pipe, a first valve is arranged on the flushing pipe, a worm wheel sheet is rotatably connected to the inside of the recharge pipe, the worm wheel sheet is attached to the inner wall of the recharge pipe, a filter screen is arranged in the recharge pipe, a second valve and a third valve are sequentially arranged on the recharge pipe from left to right, a drain pipe is fixedly connected to the bottom of the recharge pipe, and a fourth valve is arranged on the drain pipe; the utility model discloses a set up the effectual speed that slows down the recharge pipe jam of filter screen and worm wheel piece, wash away to the recharge pipe inner wall through setting up flushing pipe and blow off pipe and alleviate the jam.

Description

Wellhead device special for geothermal heating

Technical Field

The utility model relates to a geothermal heating technical field especially relates to a special well head device of geothermal heating.

Background

The deep well geothermal technology is a new energy industry, deep well geothermal produced water contains a large amount of heat energy, people use the heat energy to supply heat, in the current practical engineering, geothermal water is pumped out through a geothermal water well and used by a subsequent system, and then the geothermal water after being used is recharged back to the ground after being pressurized by a booster pump, so that the concept of only using the heat energy in the geothermal water to recycle the underground water in the ground is realized, and therefore, an independent recharging well needs to be established for recharging the geothermal water.

In geothermal recharging, the recharging capacity of a well is often reduced due to blockage, the reasons of the blockage comprise physical and chemical, the physical blockage is mainly due to suspended particles contained in water, the suspended particles are attached to the recharging well wall or enter cracks of a thermal storage under the action of recharging pressure to influence the recharging capacity, and therefore a wellhead device special for geothermal heating is needed to solve the problem of recharging blockage.

Disclosure of Invention

The utility model aims at solving the defects in the prior art and providing a wellhead device special for geothermal heating.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a special wellhead assembly of geothermal heating, includes the well head body, fixedly connected with well seat on the well head body, well seat fixed connection is subaerial, fixedly connected with outlet pipe and recharge pipe in the well seat, fixedly connected with flushing pipe between outlet pipe and the recharge pipe, be equipped with first valve on the flushing pipe, the rotation is connected with the worm wheel piece in the recharge pipe, the laminating of worm wheel piece and recharge pipe inner wall, be equipped with the filter screen in the recharge pipe, from left to right be equipped with second valve and third valve in proper order on the recharge pipe, recharge bottom of tubes fixedly connected with blow off pipe, be equipped with the fourth valve on the blow off pipe.

Preferably, the well seat is fixedly connected to the ground through a first screw, and the well head body is fixedly connected to the well seat through a second screw.

Preferably, the junction of well head body and well seat is equipped with the sealing washer, fixedly connected with sealed graphite packing on the well head body, the inner wall laminating of sealed graphite packing and well seat.

Preferably, the recharging pipe is fixedly connected with a first support, the first support is rotatably connected with a rotating shaft, and the worm wheel sheet is fixedly connected to the rotating shaft.

Preferably, a second support is fixedly connected in the recharge pipe, and the filter screen is fixedly connected to the second support.

Compared with the prior art, the utility model provides a special well head device of geothermal heating possesses following beneficial effect:

1. the wellhead device special for geothermal heating is characterized in that when geothermal heating is carried out in recharging, because the recharging water quality is different in different areas, when the floating objects in water are too much, recharging blockage is easy to cause, the heating effect is influenced, the filter screen arranged in the recharging pipe can effectively block impurities, the pipeline at the rear part of the filter screen can effectively prevent the floating objects from being attached to the pipeline, the worm wheel sheet is attached to the inner wall of the recharging pipe and is rotatably connected in the recharging pipe, the recharging pressure enables water flow to impact the worm wheel sheet, the worm wheel sheet rotates to scrape the impurities in the recharging pipe in front of the filter screen, as the floating objects blocked by the filter screen are accumulated in front of the filter screen, the worm wheel sheet is designed to effectively prevent the right part of the filter screen from being blocked, when the recharging speed is gradually reduced, a large amount of impurities are accumulated in the recharging pipe, at the moment, the fourth valve is opened to enable the recharging pipe to be communicated with the sewage discharge pipe, then the first valve is opened to enable the water outlet pipe to be communicated with the recharge pipe through the flushing pipe, then the second valve and the third valve are closed, the water flow direction is from the water outlet pipe to the flushing pipe to the recharge pipe to the sewage discharge pipe, the water flow backwashes the filter screen and the whole recharge pipe and discharges the wastewater through the sewage discharge pipe to the wastewater disposal basin, when the discharged water flow is gradually clear, the second valve and the third valve are opened, and then the first valve and the fourth valve are closed to continue recharging.

2. This special well head device of geothermal heating is equipped with the sealing washer through the junction of well head body and well seat, fixedly connected with sealed graphite packing on the well head body, and the leakproofness of the design guarantee equipment of sealing washer and sealed graphite packing has been avoided producing the phenomenon of corruption with the air contact with the inner wall laminating of well seat, sealed graphite packing.

Drawings

Fig. 1 is a schematic structural diagram of a wellhead device special for geothermal heating according to the present invention;

fig. 2 is a schematic structural diagram of a portion a in fig. 1 of a wellhead assembly special for geothermal heating according to the present invention.

In the figure: 1. a well base; 101. a water outlet pipe; 102. a first screw; 2. a wellhead body; 201. a second screw; 202. sealing the graphite packing; 2021. a seal ring; 3. a recharge pipe; 301. a first bracket; 3011. a worm wheel blade; 3012. a rotating shaft; 302. a second bracket; 3021. filtering with a screen; 303. a second valve; 304. a third valve; 4. flushing the pipe; 401. a first valve; 5. a blow-off pipe; 501. and a fourth valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-2, a wellhead device special for geothermal heating comprises a wellhead body 2, a wellhead seat 1 is fixedly connected on the wellhead body 2, the wellhead seat 1 is fixedly connected on the ground, a water outlet pipe 101 and a recharge pipe 3 are fixedly connected in the wellhead seat 1, a flushing pipe 4 is fixedly connected between the water outlet pipe 101 and the recharge pipe 3, a first valve 401 is arranged on the flushing pipe 4, a worm-gear sheet 3011 is rotatably connected in the recharge pipe 3, the worm-gear sheet 3011 is attached to the inner wall of the recharge pipe 3, a filter screen 3021 is arranged in the recharge pipe 3, a second valve 303 and a third valve 304 are sequentially arranged on the recharge pipe 3 from left to right, a drain pipe 5 is fixedly connected at the bottom of the recharge pipe 3, a fourth valve 501 is arranged on the drain pipe 5, the wellhead seat 1 is fixedly connected on the ground through a first screw 102, the wellhead body 2 is fixedly connected on the wellhead seat 1 through a second screw 201, a sealing ring 2021 is arranged at the joint of the wellhead, fixedly connected with seal graphite packing 202 on the well head body 2, the laminating of seal graphite packing 202 and the inner wall of well seat 1, the first support 301 of fixedly connected with on the pipe 3 of recharging, rotate on the first support 301 and be connected with pivot 3012, worm wheel piece 3011 fixed connection is on pivot 3012, and fixedly connected with second support 302 in the pipe 3 of recharging, filter screen 3021 fixed connection are on second support 302.

The working principle is as follows: in the utility model, geothermal heating is easy to cause recharge blockage when the floating materials in water are too much due to different recharge water quality in different areas during recharge, the heating effect is affected, the filter screen 3021 arranged in the recharge pipe 3 can effectively block impurities, the pipeline at the rear part of the filter screen 3021 can effectively prevent the floating materials from attaching on the pipeline, the worm wheel 3011 is attached to the inner wall of the recharge pipe 3, the worm wheel 3011 is rotatably connected in the recharge pipe 3, the recharge pressure makes the water flow impact the worm wheel 3011, the worm wheel 3011 rotates to scrape the impurities in the recharge pipe 3 in front of the filter screen 3021, because the blocking floating materials of the filter screen 3021 can be accumulated before the filter screen 3021, the design of the worm wheel 3011 can effectively avoid the blockage at the right part of the filter screen 3021, when the recharge speed is gradually reduced, a large amount of impurities are accumulated in the recharge pipe 3, at the moment, the fourth valve 501 is firstly opened to lead the recharge pipe 3 to be communicated with the blow-off pipe 5, then, the first valve 401 is opened to enable the water outlet pipe 101 to be communicated with the recharge pipe 3 through the flushing pipe 4, then the second valve 303 and the third valve 304 are closed, the water flow direction is from the water outlet pipe 101 to the flushing pipe 4 to the recharge pipe 3 to the sewage discharge pipe 5, the water flow backwashes the filter screen 3021 and the whole recharge pipe 3 and discharges the wastewater through the sewage discharge pipe 5, when the discharged water flow is gradually clear, the second valve 303 and the third valve 304 are opened, and then the first valve 401 and the fourth valve 501 are closed to continue recharging.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A wellhead device special for geothermal heating comprises a wellhead body (2) and is characterized in that, the well head body (2) is fixedly connected with a well seat (1), the well seat (1) is fixedly connected on the ground, a water outlet pipe (101) and a recharge pipe (3) are fixedly connected in the well seat (1), a flushing pipe (4) is fixedly connected between the water outlet pipe (101) and the recharging pipe (3), a first valve (401) is arranged on the flushing pipe (4), a worm wheel sheet (3011) is rotationally connected in the recharging pipe (3), the worm wheel sheet (3011) is jointed with the inner wall of the recharging pipe (3), a filter screen (3021) is arranged in the recharging pipe (3), a second valve (303) and a third valve (304) are sequentially arranged on the recharging pipe (3) from left to right, the bottom of the recharge pipe (3) is fixedly connected with a drain pipe (5), and a fourth valve (501) is arranged on the drain pipe (5).

2. A wellhead assembly special for geothermal heating according to claim 1, characterized in that the well base (1) is fixedly connected on the ground through a first screw (102), and the well head body (2) is fixedly connected on the well base (1) through a second screw (201).

3. The wellhead assembly special for geothermal heating according to claim 2, wherein a sealing ring (2021) is arranged at the joint of the wellhead body (2) and the well base (1), a sealing graphite packing (202) is fixedly connected to the wellhead body (2), and the sealing graphite packing (202) is attached to the inner wall of the well base (1).

4. The wellhead assembly special for geothermal heating is characterized in that a first support (301) is fixedly connected to the recharge pipe (3), a rotating shaft (3012) is rotatably connected to the first support (301), and the worm wheel sheet (3011) is fixedly connected to the rotating shaft (3012).

5. A wellhead assembly special for geothermal heating as claimed in claim 1, wherein the recharge pipe (3) is internally and fixedly connected with a second bracket (302), and the filter screen (3021) is fixedly connected with the second bracket (302).