CN212417098U

CN212417098U - Sand removing system for pump room

Info

Publication number: CN212417098U
Application number: CN202020224655.8U
Authority: CN
Inventors: 冯云刚; 张伟; 张荻
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2021-01-29
Anticipated expiration: 2030-02-28

Abstract

The utility model discloses a pump house degritting system, including the grit chamber that is located elevator pump house bottom, elevator pump house bottom is from slope to grit chamber department all around, is equipped with a plurality of evenly distributed in the grit chamber and inhales the sand pipe in grit chamber bottom, it is equipped with a plurality of sand suction holes to inhale the lateral wall under the sand pipe, elevator pump house top is equipped with sand water separator, sand water separator and inhale the sand pipe through going out the sand union coupling, it is equipped with and inhales the sand elevator pump to go out the sand pipe and inhale the junction of sand pipe, go out sand pipe and sand water separator swing joint, it seals to inhale sand pipe free end department, it all is equipped with the ball valve to inhale sand pipe both ends lateral wall. The utility model discloses in the sewage factory lift pump room of intaking increase desanding facility, can prevent that the unable outer row of lift pump room gravel of intaking of sewage factory from leading to silt sand serious and then to causing the condition of harm to the normal operating of lift pump.

Description

Sand removing system for pump room

Technical Field

The utility model relates to a sewage treatment field especially relates to a pump house degritting system.

Background

Grit is a typical representative of inorganic contaminants in wastewater and is a central factor in wear of equipment such as pumps, dewatering machines, etc. The quality of the sand removing effect is directly related to the service life of the relevant equipment of the sewage plant, and the normal stable operation and the operation cost of the sewage plant are greatly influenced.

At present, a water inlet pump room of a sewage plant has no sand removing facility. The desanding of the sewage plant is generally arranged behind a lift pump room and a fine grid and in front of a primary sedimentation tank or a biological tank, and mainly comprises several forms of rotational flow sand settling, aeration sand settling, advection sand settling and the like. Because the lift pump room of intaking does not have the facility of desanding, the long-pending sand of pump sump is serious in the actual operation in-process, causes the effective volume of pump sump to reduce, and the pump gravel of intaking is suddenly high or suddenly low, and is unfavorable to the continuous steady operation of pump room. If clear away pump house sand setting, can only stop water and stop the pump, the actual operation degree of difficulty is big, and pump pond bottom environment is complicated, and personnel are gone down to the bottom desilting danger is very big, takes place when relevant incident.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pump house degritting system.

The utility model discloses an innovation point lies in the utility model discloses in set up out sand facility at the elevator pump room, solved the problem that the long-pending sand of present pump room can't be got rid of, and reduced the operating pressure of follow-up main sand removal facility, improved the whole degritting ability of sewage factory's preprocessing unit, create the condition for the long-term steady operation of sewage factory main treatment and deep-processing unit equipment.

In order to realize the purpose of the utility model, the technical proposal of the utility model is that: the utility model provides a pump house sand removal system, including the grit chamber that is located elevator pump house bottom center department, elevator pump house bottom is from slope to grit chamber department all around, be equipped with a plurality of evenly distributed in the grit chamber inhale the sand pipe in the grit chamber bottom, it is equipped with a plurality of sand holes of inhaling to inhale the lateral wall under the sand pipe, elevator pump house top is equipped with sand water separator, sand water separator and inhale the sand pipe through sand outlet pipe connection, sand outlet pipe and inhale the junction of sand pipe are equipped with and inhale the sand elevator pump, sand outlet pipe and sand water separator swing joint, it seals to inhale sand pipe free end department, it all is equipped with the ball valve to inhale sand pipe both ends lateral wall. And (4) lifting the sand-water mixed liquid at the bottom of the pump room to a sand-water separator on the ground of the pump room by using a sand suction pump to separate sand from water. In order to improve the desanding efficiency and avoid point-like desanding, a sand setting groove is arranged at the bottom of the pump pool, the bottom of the lifting pump room is inclined towards the sand setting groove from the periphery, most of sand falls into the sand setting groove, and a perforated sand suction pipe is arranged in the groove, so that the desanding range and efficiency are greatly improved, and the number of the sand suction pipes is reduced. According to the size of the hoisting pump room, the sand suction pipes and the sand suction pumps in the grit chamber are provided with a plurality of groups, and the groups are uniformly distributed at the bottom of the grit chamber, so that the sand removing efficiency of the pump room is improved. In order to avoid the blockage of the sand suction pipe caused by the serious sand accumulation in the sand suction pipe due to the intermittent operation or the long-time operation of the sand suction pipe, ball valves are arranged at two ends of the sand suction pipe, and the sand suction pipe is cleaned in a large and small mode. Go out sand pipe and sand water separator swing joint, will go out sand pipe and sand water separator connection tip dismantlement when "size is washed", will inhale the sand pump and inhale the sand pipe through going out the sand pipe during "little washing" and promote to ground, inject the high pressure water through one end ball valve, wash out the gravel from other end ball valve, and "big washing" will inhale the whole sand pipe of sand pipe and lift from inhaling the sand pump through going out the sand pipe, rinse thoroughly.

Furthermore, the included angle between the side wall of the grit chamber and the horizontal plane is more than or equal to 45 degrees. So that the sand can fall into the bottom of the sand setting tank and the sand suction pipe can smoothly suck the sand away.

Furthermore, the included angle between the sand suction holes and the horizontal plane is 45 degrees.

Furthermore, the sand suction holes on the two lower side walls of the sand suction pipe are arranged in a staggered mode at equal intervals. The sand suction effect is better.

Furthermore, the ball valves on the side walls of the two ends of the sand suction pipe are respectively positioned on the side wall of the top part and the side wall of the bottom part of the sand suction pipe. The ball valve located at the top side wall flushes high pressure water in the flushing and the ball valve at the bottom side wall flushes sand out.

Furthermore, a plurality of H-shaped supports used for limiting the horizontal displacement of the sand suction pipe are arranged in the sand setting tank. Because inhale the vibrations of sand elevator pump during the use, can make and inhale the sand pipe aversion to make some positions in the grit chamber not inhale the sand pipe, thereby influence and inhale the sand effect, the horizontal displacement of sand pipe can be restricted to H type support.

Furthermore, the sand outlet pipe is formed by splicing a plurality of sections, and the splicing positions are butted through flanges. The disassembly position of the sand outlet pipe can be flexibly selected according to the field situation during large and small washing.

The utility model has the advantages that:

1. the utility model discloses in the sewage factory lift pump room of intaking increase desanding facility, can prevent that the unable outer row of lift pump room gravel of intaking of sewage factory from leading to silt sand serious and then to causing the condition of harm to the normal operating of lift pump.

2. The utility model discloses in set up the grit chamber bottom the elevator pump room, evenly arrange in the grit chamber and inhale the sand pipe, can improve sand removal efficiency, avoid "punctiform" sand removal.

3. The utility model discloses in setting up the ball valve at inhaling sand pipe both ends, go out sand pipe and sand water separator swing joint, can set up "size washing" to the washing of inhaling sand pipe. When the sand suction pipe is washed in size, the sand discharge pipe and the sand-water separator are connected and the end part is detached, the ball valve is lifted, the ball valve is opened, high-pressure water is flushed from the ball valve at one end, sand is flushed from the other ball valve, and the sand suction pipe can be prevented from being blocked due to the fact that accumulated sand in the sand suction pipe is caused seriously due to intermittent operation or long-time operation.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a sand suction pipe;

fig. 3 is a layout view of a sand basin of a lift pump house.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

Example 1: as shown in fig. 1, 2 and 3, the pump house desanding system comprises a grit chamber 2 located in a lift pump house 1, wherein an included angle between the side wall of the grit chamber 2 and the horizontal plane is not less than 45 degrees, and the grit chamber 2 is located between a water inlet 10 of the lift pump house 1 and a water outlet lift pump 11 of the lift pump house 1. The bottom of the lifting pump room 1 is inclined towards the grit chamber 2 from the periphery, a plurality of sand suction pipes 3 which are uniformly distributed at the bottom of the grit chamber are arranged in the grit chamber 2, and a plurality of H-shaped supports 9 used for limiting the horizontal displacement of the sand suction pipes 3 are arranged in the grit chamber 2. The lower side wall of the sand suction pipe 3 is provided with a plurality of sand suction holes 8, the included angle between each sand suction hole 8 and the horizontal plane is 45 degrees, and the sand suction holes 8 on the two lower side walls of the sand suction pipe 3 are arranged in a staggered mode at equal intervals. 1 top in elevator pump room is equipped with sand water separator 4, and sand water separator 4 with inhale sand pipe 3 and connect through sand outlet pipe 5, sand outlet pipe 5 with inhale the junction of sand pipe 3 and be equipped with and inhale sand elevator pump 6, sand outlet pipe 5 and sand water separator 4 swing joint, sand outlet pipe 5 is formed by a plurality of sections concatenations, the flange butt joint is passed through to the concatenation department. Inhale 3 free end departments of sand pipe and seal, inhale 3 both ends lateral walls of sand pipe and all be equipped with ball valve 7, inhale the ball valve of 3 both ends lateral walls of sand pipe and be located respectively on the top lateral wall and the bottom lateral wall of inhaling sand pipe 3.

During operation, sewage from water inlet 10 get into the back, because 1 bottom in elevator pump room is from slope to grit chamber 2 all around for most sand flows into in grit chamber 2, opens and inhales sand elevator pump 6, inhales sand with sand suction pipe 3, then gets into sand water separator 4 through sand outlet pipe, carries out the sand-water separation. And at the joint of the sand outlet pipe 5 and the sand-water separator 4 or the butt joint of the sand outlet pipe 5, the sand suction pipe 3 is pulled up through the sand outlet pipe 5 to carry out large and small washing on the sand suction pipe.

The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims

1. The utility model provides a pump house sand removal system, a serial communication port, including the grit chamber that is located elevator pump house bottom, elevator pump house bottom is from slope to grit chamber department all around, be equipped with a plurality of evenly distributed in the grit chamber and inhale the sand pipe in grit chamber bottom, it is equipped with a plurality of sand holes of inhaling to inhale the lateral wall under the sand pipe, elevator pump house top is equipped with sand water separator, sand water separator and inhale the sand pipe through sand outlet pipe connection, sand outlet pipe and the junction of inhaling the sand pipe are equipped with inhales the sand elevator pump, sand outlet pipe and sand water separator swing joint, it seals to inhale sand pipe free end department, it all is equipped with the ball valve to inhale sand pipe both ends lateral wall.

2. The pump house desanding system according to claim 1, wherein the side wall of the grit chamber is at an angle of 45 ° or more to the horizontal.

3. The pump house desanding system of claim 1 in which the angle of the sand suction holes to the horizontal is 45 °.

4. The sand removing system for the pump room as claimed in claim 3, wherein the sand sucking holes on the two lower side walls of the sand sucking pipe are arranged in a staggered mode at equal intervals.

5. The pump house desanding system according to claim 1, wherein the ball valves on the side walls at both ends of the sand suction pipe are respectively located on the top side wall and the bottom side wall of the sand suction pipe.

6. The pump house desanding system according to claim 1, wherein a plurality of H-shaped brackets for limiting horizontal displacement of the sand suction pipe are arranged in the grit chamber.

7. The pump house desanding system according to claim 1, wherein the desanding pipe is made of several sections that are joined together by flanges.

8. The pump house desanding system of claim 1 in which the grit chamber is located between the inlet of the lift pump house and the outlet lift pump of the lift pump house.