CN201065545Y - Water tank type energy-saving supercharging water supply installation - Google Patents

Abstract

The utility model discloses a water tank type energy-saving pressurized water supply device, which comprises a water tank [3] connected with a water supply pipe network, a group of several pressurized water pumps [9] connected in parallel on the water outlet pipe [7] of the water tank The booster pipeline [8] and its control circuit are composed of a pressure sensor [11] on the outlet of the booster pipeline; a water tank [3] is provided between the water supply network and the booster pipeline [8]. Parallel water supply pipeline [5], check valve is housed on the outlet pipe [7] of water supply pipeline [5] and water tank [3], and pressure sensor [2] is housed on the water supply pipeline [5]. The tap water of the municipal water supply network is directly supplied to the user through the water supply pipeline and the booster pipeline connected in parallel with the water tank, which can save the pressure of the booster pump by 14 to 30m head; The pressure pipeline water supply will not generate negative pressure on the water supply network, and will not affect the water use of surrounding users.

Description

Water tank type energy-saving pressurized water supply device

technical field

The utility model relates to a water tank type pressurized water supply device for supplying water to users.

technical background

The building water supply pressurization system adopted in my country mainly adopts the method of "reservoir + variable frequency speed regulation water pump", that is, all the water that needs to be pressurized from municipal water enters the storage tank first, and then the booster pump supplies water to users. The disadvantage of this water supply method is that the municipal water supply with a certain water pressure (usually with a head of 14 to 30m) is released to atmospheric pressure after entering the storage tank, and the residual pressure of the municipal water supply cannot be used. This part of unused energy will be lost after a long time It will be a small electricity bill.

Contents of the invention

The purpose of the utility model is to provide a water tank-type energy-saving pressurized water supply device, which can supply water to users by using the water supply pressure of the water supply pipe network and save energy.

The utility model is realized as follows: it includes a water tank connected with the water supply pipe network, a group of booster pipelines and their control circuits composed of several booster water pumps connected in parallel on the water outlet pipe of the water tank, and the outlet of the booster pipeline is The water outlet is equipped with a pressure sensor; it is characterized in that a water supply pipeline connected in parallel with the water tank is provided between the water supply pipeline network and the pressurized pipeline, and a check valve is installed on the water supply pipeline and the water outlet of the water tank, and a water supply pipeline is installed. Pressure Sensor. When the water supply pressure is normal, the tap water of the municipal water supply pipe network directly supplies water to the user through the water supply pipeline and the booster pipeline connected in parallel with the water tank, which can save the pressure of the booster water pump by 14 to 30m head; in the municipal water supply pipe network When the pressure is low, the water tank can supply water to the pressurized pipeline, which will not generate negative pressure on the water supply network and will not affect the water use of surrounding users.

A bypass branch pipe equipped with a check valve is also connected in parallel on the booster pipeline. When the water pressure of the water supply pipe network is sufficient for water supply, water can be directly supplied to users through the bypass branch pipe, which can avoid repeated start and stop of the booster water pump.

The utility model connects the water supply pipelines in parallel on the water tank, pressurizes the water supply to the user on the basis of the water pressure of the municipal water supply pipe network, so that the water supply pressure of the water supply pipe network can be directly used, and the water pressure of the municipal water supply pipe network is sufficient In the case of water supply, water is directly supplied to users, and the energy-saving effect is good. Compared with the water supply mode of the water tank, it can save energy by more than 30%, and at the same time, it will not generate negative pressure and cause damage to the water supply pipe network. It is especially suitable for the transformation of water tank or pool booster water supply system.

Description of drawings

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

Fig. 2 is a program logic block diagram of the utility model automatic control system.

Detailed ways

As shown in Figure 1, the tap water pipe 1 of the water supply pipe network is sent to the water tank 3 through the valve, and then the pipe 7 communicates with the pressurized pipeline 8 through the valve and check valve. The water tank 3 is provided with a float valve 4 and an overflow valve. Pipe 6; all the way through the water supply pipeline 5 directly communicates with the booster pipeline 8, the water supply pipeline 8 is equipped with valves, check valves and pressure sensors 2; the booster pipeline 8 is composed of several booster water pumps 9 connected in parallel, The specific number of water pumps is determined according to the required water supply. The water inlet and outlet of each water pump are equipped with valves, and a check valve is installed at the water outlet. A water outlet pressure sensor 11 is installed between the bypass branch pipe 10 of the check valve and the outlet end of the booster pipeline 8 to the user end 12 .

The specific working process is shown in Figure 2: first, the water tank 3 is filled with water, and the control system judges the water inlet pressure signal _T1 collected by the pressure sensor 2 on the water supply pipeline 5, whether the water inlet pressure meets the requirements, if it meets the requirements The pressure requirement is greater than the set pressure T ₀ required by the user, the booster pump does not work, and the water is supplied to the user end 12 through the bypass branch pipe 10; otherwise, the booster pump 9 is started, and according to the pressure signal of the outlet pressure sensor 11 Automatically adjust the speed of the water pump. Under the premise of meeting the water supply, the outlet pressure of the water pump is automatically stabilized to T ₀ to achieve the set outlet pressure; if one pump cannot meet the water supply requirements, the system will start other pumps. When the water from the tap water pipe 1 is insufficient, the water stored in the water tank 3 will supplement the insufficient water supply. When the water pressure in the water tank reaches the lowest value _T2 , the control system will issue an instruction to automatically stop the pump and stop supplying water to the user until the water tank inside When the water pressure reaches the set water pressure T3, the system starts the booster water pump to supply water to the user.

In order to ensure the freshness of the water in the water tank, a timing control program can be added to the control system to regularly cut off the water intake of the water supply pipe network every day to update the water in the water tank.

Claims (2)

1. Water tank-type energy-saving pressurized water supply device, including a water tank [3] connected to the water supply pipe network, a set of booster pipes composed of several booster pumps [9] connected in parallel to the outlet pipe [7] of the water tank Road [8] and its control circuit, a pressure sensor [11] is installed on the water outlet of the pressurized pipeline; its characteristic is that there is a water tank [3] in parallel between the water supply pipe network and the pressurized pipeline [8]. Water supply pipeline [5], check valve is housed on the outlet pipe [7] of water supply pipeline [5] and water tank [3], and pressure sensor [2] is housed on the water supply pipeline [5]. 2. The tank-type energy-saving pressurized water supply device according to claim 1, characterized in that a bypass branch pipe [10] equipped with a check valve is connected in parallel to the pressurized pipeline [8].

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