CN204570913U - A kind of energy-conservation lifting appliance for Xia Wa region rain-water drainage - Google Patents

Abstract

The utility model provides an energy-saving lifting device for rainwater drainage in subsidence areas, which is characterized in that it includes a lifting well and a water outlet well, the side wall of the lifting well is connected with a water inlet pipe, and at least one lifting well is arranged in the lifting well The pump, the outlet pipeline of the lift pump is connected with the pump outlet check valve, the pump outlet control valve and the pressure drain pipe in sequence, the pressure drain pipe is connected with the side wall of the water outlet well, the lift well is set on one side of the water outlet well, the lift well and There is a shared well wall between the water outlet wells, and a gate that can communicate with the lifting well and the water outlet well is arranged on the shared well wall, and the side wall of the water outlet well is connected with the water outlet pipe. The utility model utilizes the change of the liquid level in the lifting well to automatically control the rainwater drainage mode, effectively avoiding water accumulation or backflow during heavy rain, and ensuring the safe operation of the design area; at the same time, it also takes into account the gravity gravity discharge of rainwater in the design area of general rainwater volume, saving energy and reducing operation. cost advantage.

Description

An energy-saving lifting device for rainwater drainage in subsidence areas

technical field

The utility model relates to an energy-saving lifting device for rainwater drainage in sunken areas, especially suitable for rainwater drainage in sunken areas in industrial workshops, logistics supermarkets, etc., and belongs to the technical field of municipal drainage.

Background technique

In recent years, with the rapid development of logistics in my country, the construction projects of logistics warehousing and supermarkets in various places have also been increasing; as an important part of such projects, the unloading area is generally about 1.3m lower than the normal ground, and is located at the lowest point of the park , forming a local subsidence area, causing hidden dangers in its rainwater drainage. With the conventional gravity drainage method, it is easy to cause rainwater accumulation or even backflow during heavy rains, which will affect the normal operation of the park and cause property losses; with the centralized pressure drainage method, the rainwater in any rainfall situation is lifted by the pump, which is not conducive to energy saving.

In order to solve similar problems, an energy-saving lifting device for rainwater drainage in subsidence areas is designed. While ensuring the smooth drainage of rainwater in the design area, it also takes into account energy saving and business operating costs.

Contents of the invention

The purpose of this utility model is to provide an energy-saving lifting device for rainwater drainage in submerged areas. The rainwater drainage energy-saving lifting device uses the liquid level change in the lifting well to automatically control the rainwater drainage method: during heavy rain, the water level of the downstream rainwater pipe is higher, and the design The rainwater in the area is discharged by pump pressure, avoiding water accumulation or backflow, and ensuring the safe operation of the design area; in general rain, the water level of the downstream rainwater pipe is low, and the rainwater in the design area is discharged by gravity, saving energy and reducing operating costs.

In order to solve the above problems, the utility model provides an energy-saving lifting device for rainwater drainage in sunken areas. It is characterized in that it includes a lifting well and a water outlet well. There is at least one lift pump, the outlet pipeline of the lift pump is connected with the pump discharge check valve, the pump discharge control valve and the pressure drain in sequence, the pressure drain is connected with the side wall of the water outlet well, and the lift well is set at one side of the water outlet well On the other hand, there is a shared well wall between the lifting shaft and the water outlet well, the shared well wall is provided with a gate that can connect the lifting shaft and the water outlet well, and the side wall of the water outlet well is connected to the water outlet pipe.

Preferably, the lift well is provided with a liquid level detector for detecting whether the water level in the lift well has reached the pump stop liquid level, the pump start liquid level and the alarm liquid level, and the pump stop liquid level is lower than the pump start liquid level , the starting pump liquid level is lower than the alarm liquid level, and the water outlet well is provided with a water outlet well liquid level detector for detecting the low liquid level in the water outlet well.

More preferably, there are two lift pumps in the lift well, and there are two pump start levels, which are the first start pump liquid level and the second start pump liquid level, and the first start pump liquid level Lower than the second pump start level.

More preferably, the manhole cover of No. 1 lift pump and the manhole cover of No. 2 lift pump are arranged directly above the two lift pumps.

Preferably, the energy-saving lifting device for rainwater drainage in subsidence areas also includes a valve well, the valve well is arranged on the front side of the lifting well and the water outlet well, and the pumping water check valve, the pumping water control valve and the pressure The drain pipe is arranged in the valve well.

More preferably, the upper side of the valve well is provided with a valve well inspection manhole cover.

Preferably, maintenance ladders are provided on the inner pool walls of the lifting shaft and the outlet shaft.

Preferably, the lift pump is a submersible sewage pump.

Preferably, a pressure well cover is provided on the upper side of the outlet well.

More preferably, the pressure well cover can bear at least 10m water pressure, so as to ensure the normal operation of the outlet well under two flow states of gravity and pressure.

Preferably, a pressure gauge is provided on the outlet pipeline of the lift pump.

Compared with conventional drainage methods in low-lying areas, the utility model has the beneficial effects of:

The utility model utilizes the change of the liquid level in the lifting well to automatically control the rainwater drainage mode, effectively avoiding water accumulation or backflow during heavy rain, and ensuring the safe operation of the design area; at the same time, it also takes into account the gravity gravity discharge of rainwater in the design area of general rainwater volume, saving energy and reducing operation. cost advantage.

Description of drawings

Fig. 1 is the plane top view of the energy-saving hoisting device used for rainwater drainage in subsidence areas;

Fig. 2 is a schematic plan view of the internal pipeline equipment of the utility model;

Fig. 3 is the utility model A-A sectional view;

Fig. 4 is the B-B sectional view of the utility model;

Among them: 1-inlet pipe; 2-lift well; 3-valve well; 4-pressure drain; 5-outlet well; 6-gate; 7-outlet pipe; Lift pump inspection well cover; 10-valve well inspection well cover; 11-pressure well cover; 12-lift well maintenance ladder; 13-outlet well maintenance ladder; 14-lift pump; 15-pressure gauge; 16-pump water check valve; 17 - pump water control valve; 18 - alarm liquid level (0.1m lower than the ground in the submerged area); 19 - second pump liquid level; 20 - first pump liquid level; 21 - stop pump liquid level; 22 - outlet well Low liquid level; 23-Waterproof casing.

Detailed ways

In order to make the utility model more obvious and easy to understand, the rainwater drainage design in the unloading area of a logistics warehouse is taken as an example, and the detailed description is as follows with the accompanying drawings:

Example

As shown in Figure 1, it is a plan view of an energy-saving lifting device for rainwater drainage in a sunken area. The energy-saving lifting device for rainwater drainage in a sunken area includes a lifting well 2, a water outlet well 5 and a valve well 3, and the water outlet well 5 is located on the right side of the lift shaft 2, and the valve well 3 is located on the front side of the lift shaft 2 and the outlet well 5, as shown in Figure 2, the side wall of the lift shaft 2 is connected to the water inlet pipe 1, and the inside of the lift shaft 2 Two lift pumps 14 are provided, and the lift pump 14 is a submersible sewage drainage pump, which occupies a small area, is convenient for installation and maintenance, and has a suitable flow rate and head, meeting the storm drainage requirements of the design area. The outlet pipeline of the lift pump 14 is sequentially connected with the pump outlet check valve 16 , the pump outlet control valve 17 and the pressure drain pipe 4 , and the outlet pipeline of the lift pump 14 is provided with a pressure gauge 15 . The pump outlet check valve 16, the pump outlet control valve 17 and the pressure drain pipe 4 are arranged in the valve well 3, the pressure drain pipe 4 is connected with the side wall of the water outlet well 5, and there is a A common well wall, the shared well wall is provided with a circular gate 6 that can communicate with the lifting shaft 2 and the water outlet well 5 , and the side wall of the water outlet well 5 is connected to the water outlet pipe 7 . The internal pool walls of the lifting shaft 2 and the water outlet shaft 5 are respectively provided with a lifting shaft maintenance ladder 12 and a water outlet shaft maintenance ladder 13 . The No. 1 lift pump manhole cover 8 and the No. 2 lift pump manhole cover 9 are respectively provided directly above the two lift pumps 14 . The upper side of the valve well 3 is provided with a valve well inspection manhole cover 10 . The upper side of the outlet well 5 is provided with a pressure well cover 11 . The pressure manhole cover 11 can withstand 10m water pressure to ensure the normal operation of the outlet well under two flow states of gravity and pressure.

As shown in Fig. 3 and Fig. 4, the lifting shaft 2 is provided with a pump for detecting whether the water level in the lifting shaft 2 has reached the stop pump liquid level -21, the first pump start liquid level 20, the second pump start liquid level 19 and The liquid level detector of the alarm liquid level 18 (0.1m lower than the ground in the submerged area), the said stop pump liquid level 21 is lower than the first start pump liquid level 20, the first start pump liquid level 20 is lower than the second start pump liquid level The pump liquid level 19, the second start-up pump liquid level 19 is lower than the alarm liquid level 18, and the water outlet well 5 is provided with a liquid level detector for detecting the low liquid level 22 in the water well.

The specific operation of the rainwater drainage lifting device to adapt to different rainwater conditions is as follows:

1. Under normal circumstances, the downstream pipeline drains smoothly, the liquid level in the lifting well 2 is lower than the first pump level 20, the gate 6 is normally open, the lifting pump 14 is not running, and the regional rainwater is discharged by gravity;

2. During heavy rain, the drainage of the downstream pipeline cannot meet the demand, and the liquid level in the lifting well 2 will continue to rise. When the liquid level in the lifting well 2 reaches the first pump level 20, the gate 6 will be closed, and the lifting pump 14 will run alone , the rainwater in the area is discharged by pressure, avoiding water accumulation or backflow, and ensuring the safe operation of the unloading area; when the amount of rainwater is large, the liquid level continues to rise to the second pump level 19, and the lift pump 14 operates in pairs; When the water level drops to the stop pump liquid level 21, the lift pump 14 stops running, and then when the water outlet well liquid level drops to the low liquid level 22, the gate 6 is opened, and the regional rainwater resumes the gravity self-flow discharge mode.

3. When the amount of rainwater is so large that the liquid level in the lifting well 2 reaches the alarm level 18, manually control the lifting pump 14 and the gate 6 according to the actual situation; after the rainfall, the device needs to be overhauled.

Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

Claims (10)

1. the energy-conservation lifting appliance for Xia Wa region rain-water drainage, it is characterized in that, comprise winding shaft (2) and wet well (5), the sidewall of described winding shaft (2) connects water inlet pipe (1), at least one lift pump (14) is provided with in winding shaft (2), the export pipeline of lift pump (14) with pump Water Check Valve (16), pump water control valve (17) to be connected successively with pressured drain (4), pressured drain (4) is connected with the sidewall of wet well, winding shaft (2) is located at the side of wet well (5), the borehole wall that one shared is had between winding shaft (2) and wet well (5), the described borehole wall shared is provided with the gate (6) that winding shaft (2) can be connected with wet well (5), the sidewall of wet well (5) connects outlet pipe (7).

2. as claimed in claim 1 for the energy-conservation lifting appliance of Xia Wa region rain-water drainage, it is characterized in that, the level sensor whether reaching termination of pumping liquid level (21) for detecting winding shaft (2) interior water level, open pump liquid level and alarm liquid level (18) is provided with in described winding shaft (2), described termination of pumping liquid level (21) is lower than opening pump liquid level, opening pump liquid level lower than alarm liquid level (18), in described wet well (5), being provided with the level sensor for detecting low liquid level (22) in well.

3. as claimed in claim 2 for the energy-conservation lifting appliance of Xia Wa region rain-water drainage, it is characterized in that, 2 lift pumps (14) are provided with altogether in described winding shaft (2), the described pump liquid level that opens has two, to be respectively in winding shaft (2) first to open pump liquid level (20) and second and open pump liquid level (19), first opens pump liquid level (20) opens pump liquid level (19) lower than second.

4. as claimed in claim 3 for the energy-conservation lifting appliance of Xia Wa region rain-water drainage, it is characterized in that, directly over 2 described lift pumps (14), be respectively equipped with lift pump maintenance well lid (8) and No. two lift pumps maintenance well lid (9).

5. as claimed in claim 1 for the energy-conservation lifting appliance of Xia Wa region rain-water drainage, it is characterized in that, the described energy-conservation lifting appliance for Xia Wa region rain-water drainage also comprises valve well (3), valve well (3) is located at the front side of winding shaft (2) and wet well (5), described pumps Water Check Valve (16), pumps water control valve (17) and pressured drain (4) is located in valve well (3).

6. as claimed in claim 5 for the energy-conservation lifting appliance of Xia Wa region rain-water drainage, it is characterized in that, the upside of described valve well (3) is provided with valve well maintenance well lid (10).

7., as claimed in claim 1 for the energy-conservation lifting appliance of Xia Wa region rain-water drainage, it is characterized in that, described winding shaft (2) and the inside pool wall of wet well (5) are equipped with maintenance cat ladder.

8. as claimed in claim 1 for the energy-conservation lifting appliance of Xia Wa region rain-water drainage, it is characterized in that, described lift pump (14) is dirty drainage pump of diving.

9., as claimed in claim 1 for the energy-conservation lifting appliance of Xia Wa region rain-water drainage, it is characterized in that, the upside of described wet well (5) is provided with pressure well lid (11).

10., as claimed in claim 1 for the energy-conservation lifting appliance of Xia Wa region rain-water drainage, it is characterized in that, the export pipeline of described lift pump (14) is provided with pressure meter (15).