Integrated sewage lifting pump well structure

Abstract

The utility model provides an integrated sewage lift pump well structure which can avoid operation in a well, protect personal safety and prevent sewage from flowing back so as to ensure instant, safe and quick maintenance of fault equipment. Comprising a sluice valve, a check valve and an expansion joint, a coupler base is arranged in the center of the inside of the sewage well body in a hoisting mode, a guide rod is connected between the coupler base and the wellhead end of the sewage well body, and the expansion joint is connected with the guide rod. A submersible sewage pump is connected with a guide rod through a coupling frame, one end of a water conveying pipe is connected with a coupler on a coupler base, the other end of the water conveying pipe is connected with a check valve after being connected with a through-wall pipe penetrating through a sewage well body, the check valve is connected with a gate valve after passing through a telescopic joint, and a main pipe connected with the gate valve penetrates through a gate valve well and then is connected with a main pipe which is provided with a main valve. The installation height of the main pipe is larger than that of the main pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage lifting, in particular to an integrated sewage lifting pump well structure. Background Art

[0002] Integrated sewage lifting pump stations are very common in the design of sewage pipe network systems. Their main function is to solve the problem of transporting sewage from a low-lying interface to a high-lying interface. Conventional integrated sewage lifting pump stations are mostly underground cylindrical closed structures, and are made of glass fiber reinforced plastic (corrosion-resistant). The sewage tank is equipped with a coupled submersible sewage pump, a gate valve, a check valve, a stainless steel pipe, and a water inlet grille. It is supplemented by a PLC automatic control system to achieve automatic start and stop or remote control. The tank is reserved with inlet and outlet flange short pipes connected to the external sewage pipe network. The equipment manufacturer then assembles the complete set of equipment according to the design drawings; however, a large number of practices have proved that this design structure still exposes many defects, such as:

[0003] (1) It is extremely inconvenient to overhaul and hoist the submersible sewage pump: Since the integrated sewage tank equipment (glass fiber reinforced plastic) is mostly cylindrical, the top cover is spherical, and the wellhead is round, the upper end of the submersible sewage pump guide rod is fixed on the maintenance platform inside the tank, and the submersible sewage pump installation position is not centered. When the submersible sewage pump is blocked, the motor insulation is reduced, or the coil is burned out and needs to be hoisted out, the maintenance personnel must go down the well to the maintenance platform to push the submersible sewage pump to make the pump guide claw detach from the guide rod. When reinstalling, the maintenance personnel must also go down the well to pull the submersible sewage pump guide claw to bite the guide rod to achieve the pump body sliding down and coupling along the guide rod, which is very inconvenient;

[0004] (2) The phenomenon of sewage backflow valve being unable to be repaired occurs: The conventional design is to place the gate valve and check valve in the tank body. Since sewage contains strong corrosive substances, the gate valve and check valve are very easy to rust and malfunction. The check valve is the most easily damaged. Once the check valve fails to open, it will not be able to be closed, or it will be half-open and half-closed. At this time, the maintenance personnel must go down to the well for a long time to dismantle or replace the check valve. However, if the gate valve fails to close and the sewage main cannot be emptied, the disassembly of the check valve will inevitably cause sewage backflow, resulting in the check valve being unable to be replaced or disassembled for maintenance. If the check valve cannot be disassembled or repaired, it will cause two consequences. First, the check valve is stuck and the water flow rate drops sharply, and the sewage cannot be pumped out immediately. Second, when other pumps are running, the sewage flows back into the well from the pump, resulting in the serious consequence that the lifting pump station cannot be operated and repaired, and there is a major risk of sewage overflow.

[0005] (3) There are many hidden dangers and high risks in underground operations: After the integrated pump is put into operation, the tank is not only dirty and full of floating objects, but also has a particularly high concentration of toxic and harmful gases. Even if the confined space operation regulations and operating procedures are followed, the danger and unpredictability still exist, posing a major threat to the life safety of the operators;

[0006] (4) Valve well settlement and valve component cracking: Since the valve well structure and the tank structure are designed separately, the valve well is basically built on backfill soil. Due to the influence of uneven settlement, the gate valve and check valve will crack. Utility Model Content

[0007] In view of the above problems, the utility model provides an integrated sewage lifting pump well structure, which can avoid going down into the well to protect personal safety and prevent sewage backflow, thereby ensuring immediate, safe and fast repair of faulty equipment.

[0008] The utility model adopts the following technical scheme, an integrated sewage lifting pump well structure, including a sewage well body arranged underground, a gate valve well integrally cast on the outer wall of the sewage well body, a valve assembly is arranged in the gate valve well, the valve assembly includes a gate valve, a check valve, and an expansion joint, a coupler base is centrally mounted in the sewage well body, a guide rod is connected between the coupler base and the wellhead end of the sewage well body, a submersible sewage pump is connected to the guide rod through a coupling frame, one end of a water pipe is connected to the coupler on the coupler base, the other end of the water pipe is connected to the check valve after being connected to a wall-penetrating pipe running through the sewage well body, the check valve is connected to the gate valve after being passed through the expansion joint, the mother pipe connected to the gate valve passes through the gate valve well and is connected to the main pipe, a main valve is installed on the main pipe, and the installation height of the mother pipe is greater than the installation height of the main pipe.

[0009] Furthermore, a base is provided in the underground, the sewage well body is arranged on the base, the upper end surface of the sewage well body is flush with the ground, the wellhead height of the sewage well body is higher than the ground, and the wellhead of the sewage well body is covered with a grille cover plate and a stainless steel cover plate;

[0010] Furthermore, a ventilation hole is provided on the upper end surface of the sewage well body, and a ventilation pipe is connected to the ventilation hole;

[0011] Furthermore, the wellhead of the sewage well body is rectangular, and an ultrasonic level meter is installed on the wellhead of the sewage well body; a grille decontamination machine is installed on the inner wall of the sewage well body directly below the wellhead;

[0012] Furthermore, the wellhead of the gate valve well is flush with the ground, and the wellhead cover of the gate valve well is equipped with a stainless steel valve well cover;

[0013] Furthermore, a valve seat is installed in the gate valve well, and the gate valve, check valve and expansion joint are all arranged on the valve seat;

[0014] Furthermore, the submersible sewage pump and valve assembly are each provided with three groups, and the mother pipes correspondingly connected to the three groups of gate valves are collectively connected to the main pipe through a four-way joint.

[0015] The beneficial effect of the utility model is that by integrally casting the gate valve well on the outer wall of the sewage well body, the valve assembly can be moved out of the sewage well body as a whole, so as to avoid maintenance personnel from going down the well to work and avoid damage such as corrosion and cracking. The centrally arranged coupler base can facilitate maintenance and lifting, avoiding safety accidents caused by improper lifting points. By setting a main valve, the operation can be closed in time to prevent sewage backflow, further ensuring the immediate, safe and quick repair of faulty equipment, and having good use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a top view structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0018] like Figure 1 , Figure 2 As shown, the utility model integrated sewage lifting pump well structure includes a sewage well body 1 arranged underground, a gate valve well 2 is integrally cast on the outer wall of the sewage well body 1, a valve assembly is arranged in the gate valve well 2, and the valve assembly includes a gate valve 3, a check valve 4, and an expansion joint 5. A coupler base 6 is centrally hoisted and arranged in the sewage well body 1, a guide rod 8 is connected between the coupler base 6 and the wellhead end of the sewage well body 1, a submersible sewage pump 9 is connected to the guide rod 8 through a coupling frame 10, one end of a water pipe 11 is connected to the coupler 7 on the coupler base 6, and the other end of the water pipe 11 is connected to the check valve 4 after being connected to the wall-penetrating pipe 12 that runs through the sewage well body 1, the check valve 4 is connected to the gate valve 3 after being connected to the expansion joint 5, and the mother pipe 13 connected to the gate valve 3 passes through the gate valve well 2 and is connected to the main pipe 14, and the main pipe 14 is equipped with a main valve 15, and the installation height of the mother pipe 13 is greater than the installation height of the main pipe 14.

[0019] A base 16 is provided underground, and a sewage well body 1 is arranged on the base 16. The upper end surface of the sewage well body 1 is flush with the ground 17. The wellhead height of the sewage well body 1 is higher than the ground 17. The wellhead of the sewage well body 1 is covered with a grille cover plate 18 and a stainless steel cover plate 19; a vent 20 is provided on the upper end surface of the sewage well body 1, and a ventilation pipe 21 is connected to the vent 20; the wellhead of the sewage well body 1 is rectangular, and an ultrasonic level meter 22 is installed on the wellhead of the sewage well body 1. Since the existing maintenance platform is easy to block the measurement of the level meter, the maintenance platform is cancelled in this patent, so that the measurement can be conveniently carried out; a grille decontamination machine 23 is installed on the inner wall of the sewage well body 1 just below the wellhead of the sewage well body 1; the wellhead of the gate valve well 2 is flush with the ground 17, and the wellhead cover of the gate valve well 2 is equipped with a stainless steel valve well cover 24; a valve seat 25 is installed in the gate valve well 2, and the gate valve 3, the check valve 4, and the expansion joint 5 are all arranged on the valve seat 25.

[0020] Furthermore, the submersible sewage pump 9 and the valve assembly are provided with three groups, and the mother pipes 13 corresponding to the three groups of gate valves 3 are connected to the main pipe 14 through the four-way joint 26.

[0021] In the utility model, a rectangular one-piece glass fiber reinforced plastic gate valve well 2 is designed on the outer wall of the sewage well body 1 and cast synchronously, wherein the size of the gate valve well 2 must meet the installation space requirements of three sets of valve components; the gate valve 3, the check valve 4, the expansion joint 5, and the main pipe 13 are arranged in the gate valve well 2, and are installed horizontally, the water pipe 11 is connected to the check valve 4 outside the sewage well body 1, and the water pipe 11 is connected to the coupler 7 inside the sewage well body 1, so that on the one hand, the valve components can be prevented from being strongly corroded, and on the other hand, personnel can be prevented from going down the well for maintenance to reduce the occurrence of safety accidents; in addition, a main valve 15 is arranged on the outside of the gate valve well 2, and the main valve 15 is installed in the control room 27, and the position of the main pipe 14 is lowered at the same time, so that the installation height of the main pipe 13 is greater than the installation height of the main pipe 14, then when one or more valve components in the gate valve well 2 fail at the same time, the main valve 15 can be closed to prevent sewage from flowing back, and avoid the abnormal situation that the equipment can neither be operated nor maintained.

[0022] The utility model solves the confusion of users in the later operation and maintenance, protects personal safety, reduces the risk of sewage overflow, eliminates the defects of valve component corrosion, short service life, and high failure rate, and solves the problem of cracking and leakage caused by uneven settlement of valve components in the existing gate valve well 2, thereby improving the safety and reliability of equipment operation. In summary, it can avoid going down the well, protect personal safety, prevent sewage backflow, and ensure immediate, safe and fast repair of faulty equipment, and is suitable for promotion and use in sewage treatment projects.

[0023] Figure 1 , Figure 2 In the diagram, the arrow on the left is the water inlet direction, and the arrow on the right is the water outlet direction.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An integrated sewage lifting pump well structure, comprising a sewage well body arranged underground, characterized in that: A gate valve well is integrally cast on the outer wall of the sewage well body, and a valve assembly is arranged in the gate valve well. The valve assembly includes a gate valve, a check valve and an expansion joint. A coupler base is centrally mounted in the sewage well body, and a guide rod is connected between the coupler base and the wellhead end of the sewage well body. The submersible sewage pump is connected to the guide rod through a coupling frame. One end of the water pipe is connected to the coupler on the coupler base, and the other end of the water pipe is connected to the check valve after being connected to the wall-penetrating pipe running through the sewage well body. The check valve is connected to the gate valve after passing through the expansion joint. The mother pipe connected to the gate valve passes through the gate valve well and is connected to the main pipe. The main pipe is equipped with a main valve, and the installation height of the mother pipe is greater than the installation height of the main pipe.

2. The integrated sewage lifting pump well structure according to claim 1 is characterized in that: A base is provided underground, the sewage well body is arranged on the base, the upper end surface of the sewage well body is flush with the ground, the wellhead height of the sewage well body is higher than the ground, and the wellhead of the sewage well body is covered with a grille cover plate and a stainless steel cover plate.

3. The integrated sewage lifting pump well structure according to claim 1 is characterized in that: A ventilation hole is provided on the upper end surface of the sewage well body, and a ventilation pipe is connected with the ventilation hole.

4. The integrated sewage lifting pump well structure according to claim 1 is characterized in that: The wellhead of the sewage well body is rectangular, and an ultrasonic level meter is installed on the wellhead of the sewage well body; a grille dirt remover is installed on the inner side wall of the sewage well body directly below the wellhead.

5. The integrated sewage lifting pump well structure according to claim 1 is characterized in that: The wellhead of the gate valve well is flush with the ground, and a stainless steel valve well cover is installed on the wellhead of the gate valve well.

6. The integrated sewage lifting pump well structure according to claim 1 is characterized in that: A valve seat is arranged in the gate valve well, and the gate valve, the check valve and the expansion joint are all arranged on the valve seat.

7. The integrated sewage lifting pump well structure according to claim 1 is characterized in that: The submersible sewage pump and valve assembly are each provided with three groups, and the mother pipes correspondingly connected to the three groups of gate valves are collectively connected to the main pipe through a four-way joint.

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