Automatic liquid pumping device for laboratory wastewater pool

Abstract

The utility model provides an automatic liquid pumping device for a laboratory wastewater pool, which comprises a wastewater pool, a cover plate is arranged at the upper end of the wastewater pool, an air hole is arranged on the cover plate, a liquid inlet is arranged at the lower end of the wastewater pool, a limiter is arranged in the wastewater pool and connected with a limiting rope, the limiting rope is connected with the inner side wall of the wastewater pool, and the limiting rope is connected with the wastewater pool. A limiting rope is arranged in the limiting device, a copper ball capable of automatically moving is arranged in the limiting device, two copper sheets which are oppositely arranged are arranged at the end, close to the limiting rope, of the limiting device, a connecting wire connected with the copper sheets is arranged in the limiting rope and connected with a controller, the controller is connected with a submerged pump through the connecting wire, and a water outlet pipe is arranged at the lower end of the submerged pump. According to the utility model, the copper ball in the limiter is pushed to roll under the buoyancy action of water, so that the purpose of connecting or disconnecting a control circuit is achieved, the misoperation in a humid environment is reduced, the device is corrosion-resistant, good in safety performance, simple and practical, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to smelting equipment technical field, concretely relates to a laboratory wastewater pool automatic liquid pumping device. BACKGROUND

[0002] Traditional nonferrous smelting company laboratory analysis test post will produce a large amount of wastewater every day, and the wastewater is collected in a wastewater collection tank and then pumped to a sewage treatment system for centralized treatment. Since a large amount of acidic reagent is used every day, the wastewater contains a high concentration of acidity, which seriously corrodes the equipment.

[0003] The traditional automatic liquid pumping device is automatically controlled by copper wire or iron wire. When the liquid level rises to a certain level, it touches the copper wire or iron wire, and the automatic liquid pumping is performed. However, the following problems often occur during use: 1) false positives are common, especially in rainy and snowy weather, and moisture causes conduction, which causes the automatic liquid pumping system to frequently start; 2) the failure rate is high, as the wastewater is acidic, which seriously corrodes the copper wire or iron wire, causing frequent failures, frequent maintenance, and increased labor intensity of employees. SUMMARY

[0004] To solve the above problems, the utility model provides a laboratory wastewater pool automatic liquid pumping device.

[0005] The technical solution of the utility model is as follows: a laboratory wastewater pool automatic liquid pumping device, comprising a wastewater pool, a cover plate is arranged at the upper end of the wastewater pool, a gas hole is arranged on the cover plate, a liquid inlet is arranged at the lower end of the wastewater pool, a limiter is arranged inside the wastewater pool, the limiter is connected with a limiting rope, the limiting rope is connected with the inner wall of the wastewater pool, a copper ball that can automatically move is arranged inside the limiter, two copper sheets are arranged at one end of the limiter close to the limiting rope, a connecting line connected with the copper sheets is arranged in the limiting rope, the connecting line is connected with a controller, the controller is connected with a submersible pump through the connecting line, a water outlet pipe is arranged at the lower end of the submersible pump, and the water outlet pipe is located inside the wastewater pool.

[0006] Preferably, the limiting rope is connected with the inner wall of the wastewater pool at the centerline position between the highest liquid level and the lowest liquid level of the wastewater pool.

[0007] Preferably, the weight of the limiter is more than 5 times the weight of the limiting rope.

[0008] Preferably, when the liquid level rises to an angle of ≤15° between the limiting rope and the upper end inner wall of the wastewater pool, the submersible pump starts to work; when the liquid level drops to an angle of ≤15° between the limiting rope and the lower end inner wall of the wastewater pool, the submersible pump stops working.

[0009] The utility model discloses beneficial effect is: the utility model discloses utilize the buoyancy of water and push the copper ball inside the stopper and roll, reach the purpose of connecting control circuit or disconnecting control circuit, compared with traditional automatic liquid pumping system can effectively reduce laboratory energy consumption, reduce the misoperation of humid environment, and corrosion -resistant, safety performance is good, simple and practical, reduced maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is the cross section schematic view of the utility model;

[0011] Fig. 2 It is the plan of the utility model stopper.

[0012] Parts description: 1, wastewater pool, 2, liquid inlet, 3, water outlet pipe, 4, limit rope, 5, stopper, 6, cover plate, 7, submersible pump, 8, connecting line, 9, air hole, 10, controller, 11, connecting line, 12, copper ball, 13, copper sheet. DETAILED DESCRIPTION

[0013] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0014] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0015] Referring to the drawings Figs. 1-2The utility model provides an automatic liquid pumping device of laboratory wastewater pool, comprising a wastewater pool 1, the upper end of wastewater pool 1 is equipped with cover plate 6, cover plate 6 is equipped with air hole 9, wastewater pool 1 lower end is equipped with liquid inlet 2, the inside of wastewater pool 1 is equipped with stopper 5, stopper 5 is connected with limit rope 4, limit rope 4 is connected with the inside wall of wastewater pool 1, the inside of stopper 5 is equipped with the copper ball 12 that can move automatically, stopper 5 is equipped with two copper sheets 13 that are oppositely arranged near one end of limit rope 4, limit rope 4 is equipped with connecting wire 11 that is connected with copper sheet 13, connecting wire 11 is connected with controller 10, controller 10 is connected with submersible pump 7 through connecting wire 8, the lower end of submersible pump 7 is equipped with water outlet pipe 3, and water outlet pipe 3 is located in the inside of wastewater pool 1, stopper 5 is located at the center line position of the highest liquid level and the lowest liquid level of wastewater pool through the connection of limit rope 4 wastewater pool 1 inside wall, the weight of stopper 5 is more than 5 times the weight of limit rope 4, stopper is full-enclosed mode, adopts PVC material, and the outside of limit rope and connecting wire is wrapped with PVC material.

[0016] Specifically, laboratory acid wastewater flows into wastewater pool 1 through liquid inlet 2, the liquid level of wastewater pool 1 slowly rises, stopper 5 rises with the liquid level due to the buoyancy of water, when limit rope 4 rises to the angle of ≤15 ° with the upper end of wastewater pool wall, one end of stopper 5 connected with limit rope 4 no longer rises, and the other end of stopper 5 still rises under the action of buoyancy, forming a certain slope, copper ball 12 in stopper 5 rolls to the end of stopper 5 close to limit rope 4 and contacts two copper sheets 13, sends a signal to start submersible pump 7 to work by controller 10. After submersible pump 7 starts to work, the liquid level of wastewater pool 1 slowly decreases, because one end of stopper 5 connected with limit rope 4 has a certain weight due to copper ball 12, stopper 5 slightly tilts to the end of limit rope 4, copper ball 12 is always connected with two copper sheets 12, and submersible pump 7 continues to work, when limit rope 4 falls to the angle of ≤15 ° with the lower end of wastewater pool wall, one end of stopper 5 connected with limit rope 4 no longer falls, and the other end of stopper 5 still falls under the action of gravity, forming a certain slope, copper ball 12 rolls to the other end of limit rope 4, disconnects with two copper sheets, and sends a signal to stop submersible pump 7 to work by controller 10.

[0017] When the wastewater liquid level reaches the position of the upper and lower liquid level limit, the copper ball in the stopper is rolled by the buoyancy of water, reaches the purpose of connecting or disconnecting the control circuit, compared with the traditional automatic liquid pumping system, the novel device can effectively reduce the energy consumption of laboratory, reduce the misoperation of humid environment, is corrosion-resistant, has good safety performance, is simple and practical, and reduces the maintenance cost.

[0018] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical scope of the present application, which is also covered by the protection scope of the present application.

Claims

1. A kind of automatic pumping device of laboratory wastewater pool, comprising wastewater pool (1), the upper end of wastewater pool (1) is equipped with cover plate (6), the cover plate (6) is equipped with air hole (9), the lower end of wastewater pool (1) is equipped with liquid inlet (2), it is characterized in that The wastewater tank (1) is internally provided with a limiter (5), the limiter (5) is connected with a limiting rope (4), the limiting rope (4) is connected with the inner side wall of the wastewater tank (1), the limiter (5) is internally provided with a copper ball (12) which can automatically move, the limiter (5) is provided with two copper sheets (13) which are oppositely arranged near one end of the limiting rope (4), the limiting rope (4) is internally provided with a connecting line (11) which is connected with the copper sheets (13), the connecting line (11) is connected with a controller (10), the controller (10) is connected with a submersible pump (7) through a connecting line (8), the submersible pump (7) is provided with a water outlet pipe (3) at the lower end, and the water outlet pipe (3) is located inside the wastewater tank (1).

2. The automatic liquid pumping device for laboratory waste water tank according to claim 1, characterized in that The limiter (5) is located at the center line position between the highest liquid level and the lowest liquid level of the wastewater tank (1) through the limiting rope (4) and the inner side wall connecting portion of the wastewater tank (1).

3. A device for automatic liquid extraction from a laboratory waste tank according to claim 1 or 2, characterized in that The weight of the limiter (5) is more than 5 times the weight of the limiting rope (4).

4. The automatic liquid pumping device for laboratory waste water tank according to claim 1 or 2, characterized in that When the liquid level rises to the angle between the limiting rope (4) and the upper end inner wall of the wastewater tank ≤15°, the submersible pump (7) starts to work; when the liquid level drops to the angle between the limiting rope (4) and the lower end inner wall of the wastewater tank ≤15°, the submersible pump (7) stops working.

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