CN206111528U - A water pump test device for intelligent frequency constant -voltage water supply control system - Google Patents

Abstract

The utility model provides a water pump test device for an intelligent frequency conversion constant pressure water supply control system, which comprises a support base, an electronic control box, a water storage tank, a water pump, a water pump controller, a water supply pipeline, a drainage pipeline, a pressure detector, a No. Three-way ball valve, No. 2 three-way ball valve, flowmeter switch valve and flowmeter; the water storage tank is clamped in the long strip chute of the support seat through a strip-shaped protrusion; the water outlet of the water storage tank is connected to the water supply pipe The water inlet of the water pump is connected, the discharge port of the water pump is connected with the drainage pipeline, and the other end of the drainage pipeline is connected to the water storage tank from the upper end of the water storage tank; the No. 1 three-way ball valve is installed on the water supply pipeline, and the pressure detector is installed on the drain pipe. The water pump test device used in the intelligent frequency conversion constant pressure water supply control system described in the utility model can measure the water inlet, water outlet and pressure of the water pump, with various test items and accurate test results, which can significantly improve the working efficiency of the whole test.

Description

Water pump test device for intelligent frequency conversion constant pressure water supply control system

technical field

The utility model belongs to the technical field of measurement, in particular to a water pump testing device used in an intelligent frequency conversion constant pressure water supply control system.

Background technique

Nowadays, many constant pressure water supply control systems are widely used in water supply systems, such as the Three Gorges Hydropower Station, small hydropower power plants, various water pumping stations, and pressurization of housing pipelines. After using the system, the technician responsible for supervising the pump can know the real-time working condition and various operating values of the pump in the office; the system can not only control the switch of the water pump remotely; it can also display the working status of the whole water pump. The control system is to select and switch the water pump according to the received water pump signal, water level signal and water pressure signal. So far, the intelligence of the constant pressure water supply control system has been greatly developed, coupled with the simple installation: the control device is connected to the water pipe, and it can be automatically switched on and off according to the actual situation, so as to save the environment and replace the machine. Widely used in smart homes, industrial and mining enterprises, and agricultural production.

The variable frequency constant pressure water supply control system will repeatedly test each parameter and sensor after production. But today's testing equipment still has many shortcomings. For example, manual testing, man-made use of pressure gauges, flow gauges, mechanical valves, etc., makes the whole process into several single modules, which reduces efficiency and cannot guarantee accuracy. And some other semi-automatic detection equipments also have the disadvantages of low efficiency and low accuracy.

Utility model content

The utility model aims at the deficiencies of the above-mentioned prior art, and provides a water pump test device for an intelligent frequency conversion constant pressure water supply control system; the water pump test device can perform automatic and diversified tests on the water pump and its controller, not only high and accurate.

The utility model is achieved through the following technical solutions:

A water pump testing device for an intelligent frequency conversion constant pressure water supply control system, including a support base, an electronic control box, a water storage tank, a water pump, a water pump controller, a water supply pipe, a drainage pipe, a pressure detector, a No. 1 three-way ball valve, and a No. 2 No. three-way ball valve, flow meter switch valve and flow meter;

The upper surface of the support base is provided with three vertical strip-shaped chutes; the water storage tank is in the shape of a cuboid, the bottom of which is snapped into the groove of the support base, and the side of the water storage tank is provided with three strips Shaped protrusion, the position of the strip-shaped protrusion is opposite to the strip-shaped chute, and the size matches, so that the water storage tank is clamped in the strip-shaped chute of the support seat through the strip-shaped protrusion;

The inside of the water storage tank is provided with upper and lower layers, that is, an upper water tank and a lower water tank. The control box is connected, and the connection or isolation between the upper water tank and the lower water tank can be realized by controlling the solenoid valve; a water outlet and a water inlet are arranged outside the water storage tank, the water outlet is connected with the lower water tank, and the water inlet is connected with the upper water tank. water tank connection;

The water pump and the water pump controller are all installed on the support base, the water outlet of the water storage tank is connected with the water inlet of the water pump through the water supply pipe, the water outlet of the water pump is connected with the drainage pipe, and the other end of the water storage pipe is connected to the upper end of the water storage tank. In the water inlet of the water storage tank; the No. 1 three-way ball valve is installed on the water supply pipe, and the pressure detector is installed on the drainage pipe; the first channel and the second channel of the No. 2 three-way ball valve are connected in series On the pipeline, the third channel communicates with the first end of the flowmeter; the second end of the flowmeter is connected with one end of the switch valve of the flowmeter, and the other end of the switch valve of the flowmeter is connected to the upper water tank.

The water pump test device used in the intelligent frequency conversion constant pressure water supply control system described in the utility model can automatically measure the water outlet pressure of the water pump, has various test items, accurate test results, and can significantly improve the working efficiency of the whole test.

Description of drawings

Fig. 1 is the structural diagram of the water pump testing device described in the utility model;

Fig. 2 is the internal structural diagram of water storage tank;

The meanings of the symbols in the figure are as follows:

Support base 1, water storage tank 2, water pump 3, water supply pipe 4, drainage pipe 5, pressure detector 6, No. 1 three-way ball valve 7, No. 2 three-way ball valve 8, flow meter switch valve 9, flow meter 10, casters 11 , support column 12, upper water tank 21, lower water tank 22, water tank pipeline 23.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

As shown in Figure 1-2, the utility model provides a water pump test device for an intelligent frequency conversion constant pressure water supply control system, including a support base 1, an electronic control box, a water storage tank 2, a water pump 3, a water pump controller, a water supply Pipeline 4, drainage pipeline 5, pressure detector 6, No. 1 three-way ball valve 7, No. 2 three-way ball valve 8, flow meter switch valve 9 and flow meter 10.

The support base 1 is used to support the whole water pump test device, and a plurality of casters 11 are installed on the bottom of the support base 1, so as to facilitate the movement of the whole test device.

The upper surface of the support base 1 is provided with three vertical elongated sliding grooves 12 . The water storage tank 2 is in the shape of a cuboid, the bottom of which is clamped in the groove of the support seat 1, and the side of the water storage tank 2 is provided with three strip-shaped protrusions, and the strip-shaped protrusions are connected with the strip-shaped slides. The grooves 12 are opposite in position and matched in size, so that the water storage tank 2 is snapped into the elongated slide groove 12 of the support base 1 through the elongated protrusion, so as to achieve a more stable connection.

The inside of the water storage tank 2 is provided with upper and lower layers, that is, an upper water tank 21 and a lower water tank 22, and the upper water tank 21 and the lower water tank 22 are communicated through a unique water tank pipeline 23, and the water tank pipeline 23 is provided with an electromagnetic Valve, the electromagnetic valve is connected with the electronic control box, and the communication or isolation of the upper water tank 21 and the lower water tank 22 can be realized by controlling the electromagnetic valve. The exterior of the water storage tank 2 is provided with a water outlet and a water inlet, the water outlet communicates with the lower water tank 22 , and the water inlet communicates with the upper water tank 21 .

The water pump 3 and the water pump controller are all installed on the support base 1, the water outlet of the water storage tank 2 is connected to the water inlet of the water pump 3 through the water supply pipe 4, the outlet of the water pump 3 is connected with the drain pipe 5, and the other part of the drain pipe 5 One end is connected into the water inlet of the water storage tank 2 from the upper end of the water storage tank 2 . The No. 1 three-way ball valve 7 is installed on the water supply pipeline 4 for simulating the actual situation through manual switching; the pressure detector 6 is installed on the drainage pipeline 5 for testing the pressure on the drainage pipeline 5 . The first passage and the second passage of the No. 2 three-way ball valve 8 are connected in series on the drain pipe 5, and the third passage communicates with the first end of the flowmeter 10; the second end of the flowmeter 10 is connected with the flowmeter switching valve 9 One end is connected, and the other end of the flowmeter switch valve 9 is connected in the upper water tank 21.

The water pump test device used in the intelligent variable frequency constant pressure water supply control system can realize the comprehensive test of the water pump water supply mode, drainage mode and pressure mode.

In the water supply mode, the lower water tank 22 is filled with water and the upper water tank 21 has no water in the initial condition, simulating a water shortage state; at this time, the water pump controller receives the corresponding voltage signal and controls the water pump 3 to start running water supply. After a period of time, there is no water in the lower water tank 22, and the upper water tank 21 is filled with water, simulating a full water state; at this time, the water pump controller receives the corresponding voltage signal, controls the water pump 3 to stop running, and opens the solenoid valve to make the water in the upper water tank 21 The water flows into the lower water tank 22, until there is no water in the upper water tank 21, the electromagnetic valve is closed. The water supply mode operates cyclically according to the above logic.

In the drainage mode, the initial condition is that there is no water in the lower water tank 22 and the upper water tank 21 is filled with water, simulating an anhydrous state. At this time, the water pump controller receives a corresponding voltage signal and controls the water pump 3 to stop running. Afterwards, open the electromagnetic valve, make the water in the upper water tank 21 flow in the lower water tank 22, until there is no water in the upper water tank 21, close the electromagnetic valve; at this time, it is a state of full water; at this time, the water pump controller receives the corresponding voltage signal, The water pump 3 is controlled to start running to drain water. The drainage mode operates in a cyclical manner according to the above logic.

In the pressure mode, close the flow meter switching valve 9, so that the reading of the flow meter 10 is 0. In the initial state, the pointer of the pressure detector 6 is above the minimum value and below the maximum value; the water pump controller is controlled to start working, and when the water pump 3 becomes a stop state, the reading of the pressure detector 6 drops until it reaches the minimum value , the water pump controller stops running, and the water pump 3 restarts; after that, the pointer of the pressure detector 6 returns above the minimum value and below the maximum value, and the water pump 3 continues to work. When the reading of the pressure detector 6 exceeds the maximum value, the water pump controller operates , so that the water pump 3 stops. In the pressure mode, when there is no water in the lower water tank 22 and the upper water tank 21 is full of water, the electronic control box will automatically open the solenoid valve to allow the water in the upper water tank 21 to flow into the lower water tank 22 until there is no water in the upper water tank 21 and close the valve. The electromagnetic valve. The pressure mode operates in a cyclical manner according to the above logic.

It is obvious to those skilled in the art that the present utility model can be changed in many ways, and such changes are not considered to depart from the scope of the present utility model. All such modifications obvious to those skilled in the art are intended to be included within the scope of this claim.

Claims (1)

1. a kind of parallel water pump device for intelligent frequency-conversion constant pressure water supply control system, including support base (1), Electronic Control Case, storage tank (2), water pump (3), water pump controller, feedwater piping (4), drainage pipeline (5), pressure detecting instrument (6), No. one three Pass ball valve (7), No. two tee ball valves (8), effusion meter controlled valve (9) and effusion meters (10)；

The upper surface of the support base (1) is provided with three vertical strip chutes (12)；The storage tank (2) is in cuboid Shape, its bottom is installed in the groove of support base (1), and the side of the storage tank (2) is provided with three strip projections, described Raised, the size matching relative with strip chute (12) position of strip so that storage tank (2) blocks by the way that the strip is raised It is mounted in the strip chute (12) of support base (1)；

The storage tank (2) is internally provided with upper and lower two-layer, i.e. upper water box (21) and lower header (22), upper water box (21) and under Connected by unique water tank pipeline (23) between water tank (22), on the water tank pipeline (23) electromagnetic valve, the electricity are provided with Magnet valve is connected with electronic control box, by control electromagnetic valve can realize upper water box (21) and lower header (22) connect or every From；The outside of the storage tank (2) is provided with an outlet and a water inlet, and the outlet is connected with lower header (22), institute State water inlet to connect with upper water box (21)；

The water pump (3) and water pump controller are installed on support base (1), and the outlet of storage tank (2) passes through feedwater piping (4) it is connected with the water inlet of water pump (3), the discharge outlet of water pump (3) is connected with drainage pipeline (5), the other end of drainage pipeline (5) From in the water inlet that storage tank (2) is accessed in the upper end of storage tank (2)；A number tee ball valve (7) is installed to feedwater piping (4) On, the pressure detecting instrument (6) is on drainage pipeline (5)；The first passage of No. two tee ball valves (8) and second leads to Road is serially connected on drainage pipeline (5), and third channel is connected with the first end of effusion meter (10)；Second end of effusion meter (10) and stream One end connection of gauge controlled valve (9), the another of effusion meter controlled valve (9) is terminated in upper water box (21).