CN202627074U - Tank type vector negative pressure-free water supply equipment - Google Patents

Abstract

The box-type vector non-negative pressure water supply equipment involved in the utility model includes a water tank, a vector water pump, a vector motor and a vector frequency conversion controller. The water tank is provided with a water inlet and a water outlet, and the water inlet is connected to the municipal pipe network. The water outlet is connected to the water inlet of the vector water pump, including a steady flow compensator, a booster pump, a confluence main pipe, a water supply pipe and an inlet water pressure tank, and the booster pump and the steady flow compensator are sequentially arranged in the water tank On the water outlet of the water inlet, the water inlet pressure tank is connected with the steady flow compensator, and the steady flow compensator is respectively connected with the water inlet of the water tank and the confluence main pipe, and the water outlet ends of the two vector water pumps are respectively connected with the water supply pipe, and the tank The vector-type vector non-negative pressure water supply equipment is equipped with a vector pump, which replaces the traditional water pump in the water supply equipment, and can comprehensively save energy by more than 20%, especially solving the problem that the traditional water pump deviates from the high-efficiency area at low frequencies. Design, easy to control, compact, simple, beautiful, reliable water supply, and easy maintenance, small footprint.

Description

Box-type vector non-negative pressure water supply equipment

technical field

The utility model relates to a non-negative pressure water supply equipment, in particular to a box-type vector non-negative pressure water supply equipment.

Background technique

The existing traditional frequency conversion water supply equipment is composed of a water tank, an ordinary pump group and a control cabinet. The water tank is generally designed according to the maximum hourly flow rate of the user, so the volume of the water tank is often too large, difficult to install, and takes up a lot of space. The traditional water pump The efficiency of the unit is low, and the efficiency is even lower under the condition of frequency conversion, resulting in a great waste of energy.

Utility model content

In view of this, the main purpose of this utility model is to provide a box-type vector non-negative pressure water supply equipment. Through this technical solution, the floor space can be greatly reduced. The vector pump itself is a high-efficiency and energy-saving pump, which is used in water supply In the equipment, the electric energy is greatly saved, and the problem that the traditional water pump deviates from the high-efficiency area at low frequency is solved. the

In order to achieve the above object, the technical solution of the utility model is realized in the following way: a box-type vector non-negative pressure water supply equipment includes a water tank, a vector water pump, a vector motor and a vector frequency conversion controller, and the vector water pump is fixed on the vector motor Below, the frequency conversion controller is set on the vector motor, the water tank is provided with a water inlet and a water outlet, the water inlet is connected to the municipal pipe network, and the water outlet is connected to the water inlet of the vector water pump, including a stabilizer A flow compensator, a booster pump, a confluence main pipe, a water supply pipe, and a water inlet pressure tank, the booster pump and the steady flow compensator are sequentially arranged on the water outlet of the water tank, and the water inlet pressure tank is connected with the steady flow compensator , the steady flow compensator is respectively connected with the water inlet of the water tank and the confluence main pipe, the water inlet ends of the two vector water pumps are respectively connected with the confluence main pipe, the water outlet ends of the two vector water pumps are respectively connected with the water supply pipe, and the water supply pipe is connected with the water supply pipe respectively. The user pipe network is connected.

The water supply pipe is provided with a water supply diaphragm type pressure tank.

An electric control valve, a voltage regulator and a pressure sensor are arranged on the branch where the steady flow compensator communicates with the water inlet of the water tank.

A water tank float valve is arranged on the water inlet of the water tank, and an anti-backflow device is arranged between the water inlet end of the water tank float valve and the municipal pipe network, and the steady flow compensator is connected with the water inlet of the water tank. The electric control valve is communicated with the water inlet end of the float valve of the water tank.

One-way stop valves are arranged on the water outlets of the two vector pumps.

The booster pump, the pressure sensor and the electric control valve are electrically connected with the frequency conversion controller through the control cabinet.

The beneficial effect of adopting the above technical solution is: the box-type vector non-negative pressure water supply equipment is equipped with a vector pump, which replaces the traditional water pump in the water supply equipment, and can comprehensively save energy by more than 20%, especially solving the problem that the traditional water pump deviates from high efficiency at low frequencies The utility model adopts a mechatronic design, which is easy to control, compact, simple and beautiful in structure, reliable in operation and water supply, convenient in maintenance, and small in floor space.

Description of drawings

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a top view of FIG. 1 .

FIG. 3 is a side view of FIG. 1 .

In the figure, 1 water tank, 2 vector water pump, 3 vector motor, 4 vector frequency conversion controller, 5 water inlet, 6 water outlet, 7 steady flow compensator, 8 booster pump, 9 confluence main pipe, 10 water supply pipe, 11 water inlet Air pressure tank, 12 user pipe network, 13 water supply air pressure tank, 14 electric control valve, 15 voltage regulator, 16 pressure sensor, 17 water tank float valve, 18 anti-backflow device, 19 one-way stop valve, 20 control cabinet, 21 municipal Pipe Network.

Detailed ways

The technical scheme of the utility model is described in further detail below in conjunction with the accompanying drawings and specific embodiments.

The box-type vector non-negative pressure water supply equipment involved in the utility model includes a water tank 1, a vector water pump 2, a vector motor 3 and a vector frequency conversion controller 4. The vector water pump 2 is fixed below the vector motor 3, and the vector frequency conversion controller 4 is arranged on the vector motor 3, the water tank 1 is provided with a water inlet 5 and a water outlet 6, the water inlet 5 is connected to the municipal pipe network, and the water outlet 6 is connected to the water inlet end of the vector water pump 2, including There are a steady flow compensator 7, a booster pump 8, a confluence main pipe 9, a water supply pipe 10 and an inlet water pressure tank 11, and the booster pump 8 and the steady flow compensator 7 are sequentially arranged on the water outlet 6 of the water tank 1, so that The water inlet pressure tank 11 is connected with the steady flow compensator 7, and the steady flow compensator 7 is connected with the water inlet 5 of the water tank 1 and the confluence main pipe 9 respectively, and the water inlet ends of the two vector water pumps 2 are connected with the confluence main pipe 9 respectively. The water outlets of the two vector water pumps 2 are respectively connected to the water supply pipe 10 , and the water supply pipe 10 is connected to the user pipe network 12 .

The water supply pipe 10 is provided with a water supply pressure tank 13 .

An electric control valve 14 , a voltage stabilizing regulator 15 and a pressure sensor 16 are arranged on the branch where the steady flow compensator 7 communicates with the water inlet 5 of the water tank 1 .

The water tank 1 water inlet 5 is provided with a water tank float valve 17, and an anti-backflow device 18 is arranged between the water inlet end of the water tank float valve 17 and the municipal pipe network 21. The electric control valve 14 in the branch connected by the water port 5 is connected with the water inlet end of the water tank float valve 17 .

A one-way stop valve 19 is arranged on the water outlets of the two vector pumps 2 .

The booster pump 8 , the pressure sensor 16 and the electric control valve 14 are electrically connected to the frequency conversion controller 4 through the control cabinet 20 .

As shown in the figure, when working, the incoming water from the municipal pipe network 21 is connected through the backflow preventer 18, and connected to the water tank float valve 17 to be connected to the water tank 1, and the water outlet 6 of the water tank 1 is connected to the steady flow through the booster pump 8 The compensator 7 and the steady flow compensator 7 are connected to the water supply pipe 10 through the confluence main pipe, the vector water pump 2 and the one-way stop valve 19 to send water to the user pipe network 12 .

In use, when the water supply of the municipal pipe network 21 can meet the normal water requirements, the municipal pipe network 21 directly enters the steady flow compensator 7 through the voltage regulator 15 through the opened electric control valve 14, and the water inlet pressure tank 11 carries out pressure Adjustment, and then pressurized by the vector water pump 2 and enter the user pipe network 12 through the water supply pipe to meet the water demand of the user.

In the embodiment of the present utility model, the air pressure tank 11 is a diaphragm type pressure tank, and the diaphragm type pressure tank belongs to the prior art, and will not be described in detail here.

When the municipal pipe network 21 cannot meet the water requirements, the pressure sensor 16 detects a drop in the incoming water pressure of the municipal pipe network. When the signal is fed back to the control cabinet 20, the control cabinet 20 adjusts the voltage regulator 15 to change the pressure of the electric control valve 14. In order not to affect the negative pressure on the municipal pipe network 21, since the water supply flow in front of the vector water pump 2 cannot meet the requirements of the user pipe network 12, the booster pump 8 starts to pressurize the water in the water tank 1 to the pressure of the municipal pipe network 21 The same water pressure flows into the steady flow compensator 7 and merges with the incoming water from the municipal pipe network 21. After being stabilized and maintained by the water inlet pressure tank 11, two vector water pumps are superimposed and pressurized to supply water to the user pipe network 12 to compensate When the water supply of the municipal pipe network is insufficient, the normal water supply demand of the user pipe network 12 can also be guaranteed.

When the water consumption of the user pipe network 12 is small or the water is stopped, the vector water pump 2 enters dormancy, and the water supply pressure tank maintains a certain high-pressure water to stabilize the pressure of the user pipe network 12. When there is a small amount of water in the user pipe network 12, the vector pump 2 The water pump 2 does not need to be restarted, and only relies on the pressure maintaining function of the water supply pressure tank 13 to supply water to the user pipe network 12, which greatly saves electric energy and prolongs the service life of the vector water pump 2.

The above descriptions are only preferred feasible embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model.

Claims (6)

1. a box vector non-negative pressure water-supply installation includes water tank, vector water pump, vector motor and vector converter controller, and said vector water pump is fixed on the below of vector motor; The vector converter controller is arranged on the vector motor; Said water tank is provided with water inlet and delivery port, and said water inlet links to each other with city planting ductwork, and said delivery port is connected with the water inlet end of vector water pump; It is characterized in that; Include steady flow compensator, booster pump, the house steward of confluxing, feed pipe and water inlet air pressure tank, said booster pump and steady flow compensator are successively set on the delivery port of water tank, said water inlet air pressure tank links to each other with steady flow compensator; Said steady flow compensator is connected with the house steward of confluxing with the water inlet of water tank respectively; The water inlet end of two vector water pumps is connected with the house steward of confluxing respectively, and the water side of two vector water pumps links to each other with feed pipe respectively, and feed pipe links to each other with user's pipe network.

2. box vector non-negative pressure water-supply installation according to claim 1 is characterized in that said feed pipe is provided with water supply diaphragm type air pressure tank.

3. according to the described box vector non-negative pressure water-supply installation of claim, it is characterized in that the branch road that said steady flow compensator is connected with the water inlet of water tank is provided with motor-operated control valve, voltage regulation adjustor and pressure sensor.

4. box vector non-negative pressure water-supply installation according to claim 3; It is characterized in that; Said water tank inlet is provided with tank ball-float valve; Between the water inlet end of tank ball-float valve and city planting ductwork, be provided with Counterflow-proof device, said steady flow compensator is connected with the water inlet end of tank ball-float valve with motor-operated control valve in the branch road that the water inlet of water tank is connected.

5. box vector non-negative pressure water-supply installation according to claim 1 is characterized in that the water side of said two vector pumps is provided with unidirectional stop valve.

6. according to the box vector non-negative pressure water-supply installation described in claim 1 or 3, it is characterized in that said booster pump, pressure sensor and motor-operated control valve are electrically connected with the vector converter controller through switch board mutually.

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