CN201024446Y - Direct water intake water tank pressurized water supply equipment - Google Patents

Abstract

The utility model discloses a pressurized water supply equipment for a water tank for direct water intake. The height of the water tank is higher than the water height of the user end. The first pressure gauge is arranged at the water inlet end of the water pump unit. The water outlet of the water tank is connected to the user end, and the water tank supplies water to the user by gravity. The liquid level transmitter is installed in the water tank, and the liquid level transmitter sends the liquid level signal in the water tank to the control cabinet. The liquid level is divided into filling water level and full water level. , the supplementary water level is below the full water level, set the peak water supply period and non-peak water supply period; Water pressure and other parameters, automatic operation; during the peak water supply period or when the pressure of the municipal pipe network is too low, the water pump unit does not start, and the system does not take water from the municipal pipe network, thereby protecting the pressure of the municipal pipe network. The equipment has low manufacturing cost and occupies a small space , The water supply is stable and reliable.

Description

Direct water intake water tank pressurized water supply equipment

technical field

The utility model relates to a direct pressurization device for tap water pipelines.

Background technique

With the emergence of high-rise buildings, the pressure of municipal water supply will be insufficient. In order to ensure the normal water use of high-rise residents, pressurization is required. At present, there are related booster equipment, but first, the flow regulation capacity is small, and the stability of water supply is weak; second, the water storage facilities are underground, and there is a high probability of being polluted; In this case, the water pump unit runs for a long time in the low-efficiency area, and the power-saving effect is poor.

Contents of the invention

In order to overcome the above-mentioned defects, the utility model provides a new pipeline direct pressurized water supply equipment with low manufacturing cost and small space occupied by the equipment.

The technical scheme adopted by the utility model in order to solve the technical problem is: a kind of direct water intake water tank pressurized water supply equipment, including a control cabinet, a water tank, a liquid level transmitter, a water pump unit and a first pressure gauge, the height of the water tank is higher than The water height of the user end, the first pressure gauge is set at the water inlet end of the water pump unit, the water outlet end of the water pump unit communicates with the water inlet of the water tank, the water outlet at the lower part of the water tank communicates with the user end, the water tank supplies water to the user by gravity, and the liquid level transmitter Set in the water tank, the liquid level transmitter sends the liquid level signal in the water tank to the control cabinet. The liquid level is divided into replenishment level and full water level. The replenishment level is below the full water level, and the peak water supply period and non-peak water supply period are set;

1) The water pump unit does not start during the peak water supply period;

2) During the non-peak water supply period, the control cabinet controls the start and stop of the water pump unit according to the liquid level of the water tank and the lower limit value of the water intake of the municipal pipe network. Composed of fixed time periods, the first set time period is before the peak water supply period;

(1). During the first set time period of the off-peak water supply period, when the liquid level of the water tank is lower than the full water level and the actual pressure of the municipal pipe network measured by the first pressure gauge is greater than or equal to the lower limit of the allowable fluctuation of the water intake of the municipal pipe network When the limit value is reached, the water pump unit starts to make the water tank enter water. When the water level of the water tank reaches the full water level, the water pump unit stops and the water tank stops water intake;

(2). During the second set time period of the off-peak water supply period, when the liquid level of the water tank is lower than the replenishment level and the actual pressure of the municipal pipe network measured by the first pressure gauge is greater than or equal to the lower limit of the allowable fluctuation of the water intake of the municipal pipe network When the limit value is reached, the water pump unit starts to make the water tank enter water. When the water level of the water tank reaches the full water level, the water pump unit stops and the water tank stops water intake, which can avoid frequent start-up of the water pump during the second set time period;

(3). During the off-peak water supply period, when the actual pressure of the municipal pipe network measured by the first pressure gauge is lower than the lower limit value of the allowable fluctuation of the water intake of the municipal pipe network, the water pump unit will stop.

The further technical scheme of the utility model is:

The water tank is provided with an overflow pipe, and one end of the overflow pipe is opened on the top of the water tank (15), and the other end is opened outside the water tank.

A clean air displacer is provided, the air displacer is placed on the top of the water tank, and the air displacer communicates with the inside of the water tank.

There is a ball float valve, when the water level is full, the ball float valve closes the water inlet of the water tank, double control.

The water pump unit is composed of a water pump, a first valve, a second valve and a check valve connected in series. The inlet and outlet ends of the water pump are respectively connected in series with the first and second valves, and a check valve is arranged in series between the water outlet end of the water pump and the second valve. .

There are two sets of water pump units connected in parallel, one of which is a standby pump.

The water inlet of the equipment is equipped with a main valve.

A drain valve is provided at the bottom of the water tank.

The beneficial effects of the utility model are: this example is suitable for high-rise buildings, directly draws water from the municipal pipe network, supplies water to users in the form of gravity water supply, adopts automatic closed-loop control, and according to parameters such as water tank liquid level, water supply period and water inlet pressure, Automatic operation; during the peak water supply period or when the pressure of the municipal pipe network is too low, the pump unit does not start, and the system does not take water from the municipal pipe network, thereby protecting the pressure of the municipal pipe network. The equipment is low in manufacturing cost, occupies a small space, and provides stable and reliable water supply.

Description of drawings

Fig. 1 is the schematic diagram of the utility model;

The arrows in Figure 1 indicate the flow direction of water.

Detailed ways

Embodiment: A water tank pressurized water supply equipment for direct water intake, including a control cabinet 1, a water tank 15, a liquid level transmitter 14, a water pump unit 40, and a first pressure gauge 17. A pressure gauge 17 is set at the water inlet end of the water pump unit 40, the water outlet end of the water pump unit 40 communicates with the water inlet of the water tank 15, the water outlet at the lower part of the water tank 15 communicates with the user end, and the water tank 15 supplies water to the user by gravity, the liquid level transmitter 14 is set in the water tank 15. The liquid level transmitter sends the liquid level signal in the water tank 15 to the control cabinet. The liquid level is divided into replenishment water level and full water level. The replenishment water level is below the full water level. water supply period;

1) The water pump unit does not start during the peak water supply period, that is, the system does not draw water from the pipe network to protect and adjust the pressure and flow of the municipal pipe network during the peak water supply period;

2) During the non-peak water supply period, the control cabinet controls the start and stop of the water pump unit according to the liquid level of the water tank and the lower limit value of the water intake of the municipal pipe network. Composed of fixed time periods, the first set time period is before the peak water supply period;

(1). During the first set time period of the off-peak water supply period, when the liquid level of the water tank is lower than the full water level and the actual pressure of the municipal pipe network measured by the first pressure gauge 17 is greater than or equal to the allowable fluctuation of the water intake of the municipal pipe network When the lower limit is reached, the water pump unit starts to make the water tank enter water. When the water level of the water tank reaches the full water level, the water pump unit stops and the water tank stops water intake to ensure that the water tank is full when it enters the peak water supply period;

(2). During the second set time period of the off-peak water supply period, when the liquid level of the water tank is lower than the replenishment level and the actual pressure of the municipal pipe network measured by the first pressure gauge 17 is greater than or equal to the allowable fluctuation of the water intake of the municipal pipe network When the lower limit value is reached, the water pump unit starts to make the water tank enter water. When the water level of the water tank reaches the full water level, the water pump unit shuts down and the water tank stops water intake, which can avoid frequent start-up of the water pump during the second set time period;

(3). During the off-peak water supply period, when the actual pressure of the municipal pipe network measured by the first pressure gauge 17 is lower than the lower limit value of the allowable fluctuation of the water intake of the municipal pipe network, the water pump unit stops.

Water tank 15 is provided with overflow pipe 19, and overflow pipe one end opening is in water tank 15 tops, and the other end is open outside water tank, dress filter screen in overflow pipe, prevents from being polluted in the water tank.

A clean air displacer 13 is provided, the air displacer is placed on the top of the water tank 15, and the air displacer communicates with the inside of the water tank.

A ball float valve 12 is provided, and when the full water level is reached, the ball float valve closes the water inlet of the water tank for dual control.

The water pump unit is composed of a water pump 4, a first valve 3, a second valve 6 and a check valve 5 connected in series. A check valve 5 is arranged in series between the two valves 6 .

There are two sets of water pump units connected in parallel, one of which is a standby pump.

The water inlet of the equipment is provided with a main valve 2.

Water tank bottom is provided with drain valve 16.

In this example, the filling water level value, full water level value, peak water supply period and minimum water protection pressure value (that is, the lower limit value of the allowable fluctuation of the water intake of the municipal pipe network) of the water tank can be set on the spot according to the specific situation. The system is equipped with a standard communication interface, which can use a variety of communication methods to realize remote monitoring.

In this example, the first set time period of the non-peak water supply period is usually connected with the peak water supply period. The specific length of the first set time period is set according to the specific situation, such as according to the capacity of the water tank and the actual local water supply pressure. wait. In actual situations, the peak water supply time period is usually between 5:00 pm and 8:00 pm, so the first set time period can be set at 4:00 pm to 5:00 pm.

Of course, multiple peak water supply periods and multiple non-peak water supply periods can be set in one day. In the corresponding first set time period before each peak water supply period, it is always necessary to fill the water tank with water, corresponding to the second set time. In the section, only when the water level of the water tank is lower than the filling water level, the water pump is turned on to feed the water tank.

In this example, a second pressure gauge 18 can be set, and the second pressure gauge 18 is set at the water outlet end of the water pump unit, so that the operator can easily observe the water pressure at the water inlet of the water tank.

illustrate:

The allowable fluctuation value of the water intake pressure of the municipal pipe network is divided into a lower limit and a limit value, which are set as:

P1: The lower limit of the allowable fluctuation of the pressure at the water intake of the municipal pipe network (determined by the local water supply department);

P2: The allowable fluctuation limit value of the pressure of the water intake of the municipal pipe network (determined by the local water supply department);

P: the actual pressure of the municipal pipe network;

The relationship between P1 and P2 is: P2<P1.

Claims (8)

1. A water tank pressurized water supply equipment for direct water intake, characterized in that it includes a control cabinet (1), a water tank (15), a liquid level transmitter (14), a water pump unit (40) and a first pressure gauge (17) , the height of the water tank (15) is higher than the water height of the user end, the first pressure gauge (17) is located at the water inlet end of the water pump unit (40), the water outlet end of the water pump unit (40) communicates with the water inlet of the water tank (15), and the water tank (15) The water outlet at the lower part communicates with the user end. The water tank (15) supplies water to the user by gravity. The liquid level transmitter is installed in the water tank. The liquid level transmitter sends the liquid level signal in the water tank to the control cabinet. The position is divided into water supply level and full water level, the water supply level is below the full water level, and the peak water supply period and non-peak water supply period are set; 1) The water pump unit does not start during the peak water supply period; 2) During the non-peak water supply period, the control cabinet controls the start and stop of the water pump unit according to the liquid level of the water tank and the lower limit value of the water intake of the municipal pipe network. Composed of fixed time periods, the first set time period is before the peak water supply period; (1). During the first set time period of the non-peak water supply period, when the liquid level of the water tank is lower than the full water level and the actual pressure of the municipal pipe network measured by the first pressure gauge (17) is greater than or equal to the allowable water intake of the municipal pipe network When the lower limit of the fluctuation is reached, the water pump unit starts to make the water tank enter the water. When the water level of the water tank reaches the full water level, the water pump unit stops and the water tank stops water intake; (2). During the second set time period of the off-peak water supply period, when the liquid level of the water tank is lower than the replenishment level and the actual pressure of the municipal pipe network measured by the first pressure gauge (17) is greater than or equal to the allowable water intake of the municipal pipe network When the lower limit of the fluctuation is reached, the water pump unit starts to make the water tank enter the water. When the water level of the water tank reaches the full water level, the water pump unit stops and the water tank stops water intake; (3). During the off-peak water supply period, when the actual pressure of the municipal pipe network measured by the first pressure gauge (17) is lower than the lower limit value of the allowable fluctuation of the water intake of the municipal pipe network, the water pump unit stops. 2. The pressurized water supply equipment for direct water intake tank according to claim 1, characterized in that: the water tank (15) is provided with an overflow pipe (19), one end of the overflow pipe opens on the top of the water tank (15), and the other end opens on the top of the water tank (15). outside the tank. 3. The pressurized water supply equipment for direct water intake tank according to claim 1, characterized in that: an air displacer is provided, the air displacer is placed on the top of the water tank (15), and the air displacer communicates with the inside of the water tank. 4. The pressurized water supply equipment for direct water intake tank according to claim 1, characterized in that: a ball float valve (12) is provided, and when the water level reaches full, the ball float valve closes the water inlet of the water tank. 5. The pressurized water supply equipment for direct water intake tank according to claim 1, characterized in that: the water pump unit consists of a water pump (4), a first valve (3), a second valve (6) and a check valve (5) connected in series The inlet and outlet ends of the water pump (4) are connected in series with the first and second valves (3, 6) respectively, and a check valve (5) is arranged in series between the water outlet end of the water pump (4) and the second valve (6). . 6. The pressurized water supply equipment for direct water intake tank according to claim 1 or 5, characterized in that: there are two sets of water pump units connected in parallel, one of which is a standby pump. 7. The pressurized water supply equipment for direct water intake tank according to claim 1, characterized in that: the water inlet of the equipment is provided with a main valve (2). 8. The pressurized water supply equipment for direct water intake tank according to claim 1, characterized in that: a water discharge valve (16) is provided at the bottom of the water tank.

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