CN201071521Y - Non-negative pressure water supply equipment for standby waterhead of self-drilled well - Google Patents

Abstract

The utility model provides an self-supply and well-supply water resource non-pressure water supply apparatus, consisting of a stable current replenishing device, a vacuum suppressor, a water supply pump, a control cabinet, a well pump, a filter, a counter flow prevention device, a non-return valve, a hydraulic level controller and a pressure sensor; wherein, a tap water pipe net is connected with the filter and the counter flow prevention device and then in parallel connection with a well pump water supply pipe. The pressure sensor and the hydraulic level controller are automatically switched over through the inlet of the stable current replenishing device. When water is normally supplied, the self-supply well is taken as the emergency water resource; when in use, the tap water is preferentially taken as the water resource. The utility model adopts the self-supply well as the emergency water resource,, the self-supply well is in the parallel connection with the tap water pipe net and is directly cascaded and pressurized. The tap water and the emergency well are automatically switched over and taken as double-way water intake with reliable water supply, energy saving operation and small area occupying; furthermore, the utility model can utilize pipe net water intake pressure and is mainly suitable for a secondary pressurization water supply occasion with rich underground water resource and relatively high tap water supply cost.

Description

Self-provided well backup water source without negative pressure water supply equipment

1. Technical field

The utility model relates to a non-negative pressure water supply equipment, in particular to a non-negative pressure water supply equipment for self-prepared wells and backup water sources.

2. Background technology

At present, non-negative pressure water supply equipment is used by more and more secondary equipment because it does not have a pool or a water tank, and can use the pressure of the tap water pipe network. However, for some water-shortage areas where tap water supply is tight, some use to increase the price of tap water to limit water consumption, and some achieve regular water supply, while the non-negative pressure water supply equipment in the prior art uses tap water as the water source If the tap water pipe network breaks down or the water supply is insufficient, the entire water supply system will be paralyzed, the equipment cannot supply water normally, and the user has no water to use.

3. Contents of utility model

In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a self-contained well backup water source without negative pressure water supply equipment that can automatically switch between tap water and well water as the water source.

The technical solution adopted by the utility model to solve the technical problem is: self-prepared well backup water source without negative pressure water supply equipment, which is composed of a steady flow compensator, a vacuum suppressor, a water supply pump, a control cabinet, a well pump, a filter, a backflow Composed of preventer, non-return valve, liquid level controller and pressure sensor, pressure sensors are respectively installed at the connection of the tap water pipe network, before the inlet of the steady flow compensator and at the outlet of the water supply pump, and the tap water pipe network is connected with a filter to prevent backflow After the device, it is connected in parallel with the well water pipe network, and the automatic switching is realized through the inlet pressure sensor and the liquid level controller of the steady flow compensator. During normal water supply, the self-provided well is used as the backup water source, and tap water is preferred as the water source during operation. When the tap water is cut off or When the water supply is insufficient and the pressure of the inlet pressure sensor is lower than the starting pressure set by the well pump, the well pump is controlled by the control cabinet to automatically start the water supply to ensure the safety and reliability of the water supply. stop valve, and a liquid level controller is installed at the low liquid level of the self-contained well to protect the safe operation of the well pump; Use the pump to automatically stop running and restore the normal water supply of the water pipe network.

The beneficial effect of the utility model is that the self-prepared well is used as a backup water source, and it is directly connected in series with the tap water pipe network for pressurization, and the tap water and the self-prepared well are automatically switched as two-way water intake, the water supply is safe and reliable, and it is directly connected to the pipe network. The network is connected in series, which can use the water inlet pressure of the pipe network, save energy in operation, and occupy a small area.

4. Description of drawings

Accompanying drawing 1 is the structural representation of technological process of the present utility model.

In the figure, 1. Steady flow compensator, 2. Vacuum suppressor, 3. Water supply pump, 4. Control cabinet, 5. Well pump, 6. Filter, 7. Backflow preventer, 8. Check valve, 9 , Liquid level controller, 10, tap water pressure sensor, 11, inlet pressure sensor, 12, outlet pressure sensor.

5. Specific implementation

Below with regard to accompanying drawing 1, self-prepared well standby water source of the present utility model has no negative pressure water supply equipment and is described in detail below.

As shown in accompanying drawing 1, self-prepared well backup water source of the utility model has no negative pressure water supply equipment, is composed of steady flow compensator (1), vacuum suppressor (2), water supply pump (3), control cabinet (4) , well pump (5), filter (6), backflow preventer (7, check valve (8), liquid level controller (9) and pressure sensors (10), (11), (12), Pressure sensors (10), (11), and (12) are respectively installed at the connection of the tap water pipe network, before the inlet of the steady flow compensator (1) and at the outlet of the water supply pump (3), and the tap water pipe network is connected with a filter (6 ), the backflow preventer (7) and the water supply pipe network of the well pump (5) are connected in parallel, and the automatic switching is realized through the steady flow compensator (1), the inlet pressure sensor (11) and the liquid level controller (9), and the normal water supply Self-prepared wells are used as the backup water source during operation, and tap water is used as the water source preferentially during operation. When the tap water is cut off or the water supply is insufficient, and the pressure of the inlet pressure sensor (11) is lower than the starting pressure set by the well pump (5), the The control cabinet (4) controls the well pump (5) to automatically start the water supply to ensure the safety and reliability of the water supply. A check valve (8) is installed at the outlet of the well pump (5) to prevent the backflow of tap water, and the self-prepared well is low liquid. A liquid level controller (9) is provided at the position to protect the safe operation of the well pump. During normal operation, the tap water flows through the filter (6) and backflow preventer (7) and then enters the steady flow compensator (1). The outlet of the compensator (1) is connected to the water supply pump (3), and the water supply pump (3) realizes frequency conversion and constant pressure water supply through the outlet pressure sensor (12). When the pressure of the inlet pressure sensor (11) of tap water is lower than the set pressure value, it proves that the tap water is cut off or the water supply is not enough, and the well pump (5) is automatically put into work; When the pressure is high, the well pump (5) automatically stops running through the setting program, and restores the normal water supply of the tap water pipe network.

Claims (2)

1. A self-provided well standby water source without negative pressure water supply equipment, which is composed of a steady flow compensator, a vacuum suppressor, a water supply pump, a control cabinet, a well pump, a filter, a backflow preventer, a check valve, and a liquid level control It is composed of a pressure sensor and a pressure sensor, and its characteristics are: the water pipe network is connected with a filter, a backflow preventer, and is connected in parallel with the water supply pipe network of the well pump, and a check valve to prevent the backflow of tap water is installed at the outlet of the well pump, and the self- A liquid level controller is installed at the low liquid level of the preparation well. 2. The self-contained well standby water source non-negative pressure water supply equipment according to claim 1, characterized in that: pressure sensors are respectively installed at the connection of the tap water pipe network, before the inlet of the steady flow compensator and at the outlet of the water supply pump.

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