CN115233772A - Underground water pressure-reducing drainage device - Google Patents

Abstract

The invention provides a pressure-reducing drainage device for underground water, and mainly relates to the field of underground water pressure-reducing drainage equipment. The utility model provides an underground water decompression drainage device, includes the nozzle stub, and the several inlet opening has been seted up to the lower part of a drain section of thick bamboo periphery, the top of a drain section of thick bamboo is equipped with the water-blocking plate, the first piston of sliding fit installation toper structure in the drain section of thick bamboo, the blind hole is seted up at the center of first piston top surface, and the lower extreme of guide bar extends to in the blind hole and sliding fit with it, the several wash port has been seted up to the top surface of water-blocking plate, the one end of the first spring of top surface fixed connection of ring, the periphery fixed mounting of ring has the throttling arrangement of several and wash port one-to-one. The invention has the beneficial effects that: this device is when using, and this device can realize the decompression to rivers through mutually supporting of devices such as first piston and first spring, avoids flowing through the rivers too big drainage pressure increase that leads to in the stub, easy operation convenient to use of flowing through.

Description

A groundwater decompression and drainage device

technical field

The invention mainly relates to the technical field of groundwater decompression and discharge equipment, in particular to a groundwater decompression and drainage device.

Background technique

Groundwater recharge is the use of artificial measures to inject water from surface water or other water sources into the ground to replenish groundwater, thereby maintaining the stability of the formation. Especially when using geothermal energy, in order to avoid thermal pollution and chemical pollution caused by the direct discharge of geothermal wastewater, and in order to maintain the thermal storage pressure, it is necessary to recharge the geothermal tail water.

In the process of recharging, it is necessary to control the drainage pressure of groundwater within a limited range, otherwise it is easy to cause the drainage pressure to be too large and cause safety hazards. In the prior art, most of the pressure reducing valves are used to reduce the drainage pressure. It is easy to be damaged in a high pressure environment for a long time, so it is necessary to provide a buffer device to share the water pressure on the valve body.

SUMMARY OF THE INVENTION

In order to solve the deficiencies of the prior art, the present invention provides a groundwater decompression and drainage device, which controls the water pressure in the pipeline by limiting the flow during use, thereby reducing the drainage water pressure.

The present invention is achieved by the following technical solutions in order to achieve the above object:

A groundwater decompression and drainage device, comprising a short pipe, the upper and lower funnel-shaped drainage cylinders are fixedly connected in the short pipe, the lower part of the outer periphery of the drainage cylinder is provided with several water inlet holes, and the upper part of the drainage cylinder is provided with There is a water blocking plate, the outer circumference of the water blocking plate is fixedly connected with the inner wall of the short pipe, the first piston of the conical structure is slidably fitted in the drainage cylinder, and the center of the top surface of the first piston is provided with a blind hole, so The center of the bottom surface of the water blocking plate is fixedly installed with a guide rod, the lower end of the guide rod extends into the blind hole and is slidably matched with it, the top surface of the water blocking board is provided with several drainage holes, and the outer circumference of the guide rod is sleeved There is a ring, the top surface of the ring is fixedly connected to one end of the first spring, the other end of the first spring is fixedly connected to the bottom surface of the water blocking plate, and the bottom surface of the ring is fixedly connected to one end of the second spring, The other end of the second spring is fixedly connected with the top surface of the first piston, and a plurality of throttling devices corresponding to the drainage holes are fixedly installed on the outer circumference of the ring.

The throttling device includes a connecting plate, a plurality of connecting plates corresponding to the drainage holes are fixedly installed on the outer circumference of the ring, and a plurality of connecting rods are fixedly installed on the top surface of the connecting plate, and the upper ends of the connecting rods are respectively The upper and lower conical second pistons are fixedly installed, and the second pistons can pass through the corresponding drainage holes.

A sliding sleeve is fixedly installed in the blind hole, and the guide rod is inserted into and slidingly matched with the sliding sleeve.

Both ends of the short pipe are respectively fixed with flanges.

Compared with the prior art, the beneficial effects of the present invention are:

When the device is in use, the water flow through the short pipe needs to overcome the elastic force of the first spring to push the first piston upwards before it can pass through the lower part of the short pipe smoothly, and when the upward moving distance of the first piston is too large, it can be further triggered The throttling device realizes the restriction of the water flow, avoids the increase of the drainage pressure caused by the excessive water flow through the short pipe, and is easy to operate and easy to use.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the internal structure schematic diagram of the present invention;

Fig. 3 is the sectional structure schematic diagram of the present invention;

FIG. 4 is an enlarged view of part I of FIG. 3 .

Symbols shown in the accompanying drawings: 1. Short pipe; 2. Drainage cylinder; 3. Water inlet hole; 4. Water blocking plate; 5. First piston; 6. Blind hole; 7. Guide rod; 8. Drainage hole; 9, ring; 10, first spring; 11, second spring; 12, connecting plate; 13, connecting rod; 14, second piston; 15, sliding sleeve; 16, flange.

Detailed ways

The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the teaching content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the present application.

Example: a groundwater decompression and drainage device

As shown in Figure 1-4, a groundwater decompression and drainage device, its specific structure includes:

The short pipe 1 is fixedly connected with a funnel-shaped drainage cylinder 2, which is large and small at the bottom. The lower part of the outer periphery of the drainage cylinder 2 is provided with several water inlet holes 3. Water plate 4, the outer circumference of the water blocking plate 4 is fixedly connected with the inner wall of the short pipe 1, the first piston 5 of the conical structure is slidably fitted in the drainage cylinder 2, and the center of the top surface of the first piston 5 is opened Blind hole 6, the center of the bottom surface of the water blocking plate 4 is fixedly installed with a guide rod 7, the lower end of the guide rod 7 extends into the blind hole 6 and slides with it, the top surface of the water blocking plate 4 is provided with several Drain hole 8, the outer circumference of the guide rod 7 is sleeved with a ring 9, the ring 9 is slidingly matched with the guide rod 7, the top surface of the ring 9 is fixedly connected to one end of the first spring 10, the first The other end of the spring 10 is fixedly connected to the bottom surface of the water blocking plate 4, and the bottom surface of the ring 9 is fixedly connected to one end of the second spring 11. The elastic force of the first spring 10 is greater than that of the second spring 11. The other ends of the two springs 11 are fixedly connected to the top surface of the first piston 5 , the first spring 10 and the second spring 11 are both sleeved on the outer circumference of the guide rod 7 , and the outer circumference of the ring 9 is fixedly installed with several The throttling device corresponding to the drain hole 8 one-to-one.

The throttling device includes a connecting plate 12 , a plurality of connecting plates 12 corresponding to the drainage holes 8 are fixedly installed on the outer periphery of the ring 9 , and a plurality of connecting rods 13 are fixedly installed on the top surface of the connecting plate 12 . The upper ends of the connecting rods 13 are respectively fixed and installed with conical second pistons 14 that are small at the top and big at the bottom. Drain hole 8. When this structure is designed to work, when the pressure of the water flow through the short pipe 1 is too large, the first piston 5 is pushed up under the action of the water flow, the first piston 5 moves upward, and the second spring 11 is first pushed up by the Compression, when the elastic force of the first spring 10 is less than the upward pressure applied to the bottom of the ring 9, the first spring 10 is compressed when the ring 9 moves upward, and the ring 9 drives the connecting rod 13 through the connecting plate 12 connected to it. And the corresponding second piston 14 moves upward, and the second piston 14 is inserted into the corresponding drainage hole 8, thereby reducing the water outlet area of the drainage hole 8, thereby realizing the automatic flow restriction of the water flowing out of the short pipe 1, thereby Stabilize the drainage pressure to achieve the depressurization effect.

A sliding sleeve 15 is fixedly installed in the blind hole 6 , and the guide rod 7 is inserted into the sliding sleeve 15 and slidably matched therewith. This structural design can prevent the guide rod 7 from being directly inserted into the blind hole 6 , thereby isolating the guide rod 7 and the first piston 5 , improving the wear resistance of the blind hole 6 , and avoiding the friction between the first piston 5 and the guide rod 7 . cause damage.

Both ends of the short pipe 1 are respectively fixed with flanges 16 . This structural design can facilitate the user to install the device in the drainage pipeline, which is convenient to use.

When the device is used, it is used in conjunction with the pressure reducing valve in the prior art (the pressure reducing valve is in the prior art, and its specific principle and structure will not be described in detail here), and the device is installed at the front of the pressure reducing valve. , when the water is drained, the water flows through the device to be initially decompressed and then flows through the pressure reducing valve to reduce the water pressure of the device to the pressure reducing valve; when the device is in use, after the water flow enters the short pipe 1, the water flows through the inlet water. The hole 3 flows into the drainage cylinder 2, the first piston 5 is pushed up under the action of water pressure, the first spring 10 is compressed, and the water flow needs to overcome the elastic force of the first spring 10 to flow, so as to realize a decompression of the water flow, When the water flow passes above the first piston 5, it is blocked by the water blocking plate 4, the ring 9 and the throttling device, thereby reducing the flow of the water flow, further reducing the pressure of the water flow out of the short pipe 1, and realizing the decompression of the water flow again. The buffer effect on the pressure reducing valve is realized, and the water pressure borne by the pressure reducing valve is shared by the device to realize the pressure reducing effect in the process of groundwater discharge.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (4)

1. The utility model provides an groundwater decompression drainage device, includes nozzle stub (1), its characterized in that: the improved water-saving drainage device is characterized in that a funnel-shaped drainage tube (2) with a large bottom is fixedly connected to the inside of the short tube (1), a plurality of water inlet holes (3) are formed in the lower portion of the periphery of the drainage tube (2), a water blocking plate (4) is arranged above the drainage tube (2), the periphery of the water blocking plate (4) is fixedly connected with the inner wall of the short tube (1), a first piston (5) with a conical structure is installed in the drainage tube (2) in a sliding fit mode, a blind hole (6) is formed in the center of the top surface of the first piston (5), a guide rod (7) is fixedly installed at the center of the bottom surface of the water blocking plate (4), the lower end of the guide rod (7) extends into the blind hole (6) and is in sliding fit with the blind hole, a plurality of drain holes (8) are formed in the top surface of the water blocking plate (4), a circular ring (9) is sleeved on the periphery of the guide rod (7), one end of a first spring (10) is fixedly connected to the top surface of the circular ring (9), the other end of the first spring (10) is fixedly connected with the bottom surface of the water blocking plate (4), a second spring (11) is fixedly connected with one end of the other end of the second spring (11), and a throttling device is connected with the first piston (5), and the first piston (8) and the second throttling device is connected with the first piston (11) one end of the second throttling ring (11).

2. A groundwater pressure reduction drainage device as claimed in claim 1, wherein: the throttling device comprises connecting plates (12), a plurality of connecting plates (12) which correspond to the drain holes (8) one by one are fixedly installed on the periphery of the circular ring (9), a plurality of connecting rods (13) are fixedly installed on the top surface of each connecting plate (12), conical second pistons (14) which are small in upper portion and large in lower portion are fixedly installed at the upper ends of the connecting rods (13) respectively, and the second pistons (14) can penetrate through the corresponding drain holes (8).

3. A ground water pressure-reducing drainage apparatus according to claim 1, characterized in that: a sliding sleeve (15) is fixedly installed in the blind hole (6), and the guide rod (7) is inserted into the sliding sleeve (15) and is in sliding fit with the sliding sleeve.

4. A groundwater pressure reduction drainage device according to claim 1, characterized in that: and two ends of the short pipe (1) are respectively fixedly provided with a flange plate (16).

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