Pipe network pressure-superposed intelligent water supply pumping station system
Technical field:
The utility model relates to a kind of secondary water supply system, particularly relates to a kind of pipe network pressure-superposed intelligent water supply pumping station system, belongs to the water system field.
Background technology:
Along with the aggravation of contradictions between quickening of urban construction paces and the urban land anxiety, civilian and number of plies public building is constantly increased, the user has had specific demand to the service pressure of tap water pipe network, and certain customers surpass the service pressure of city public water supply pipe network to the specific demand of hydraulic pressure.According to the service pressure standard of country about city public water supply pipe network, the public pipe network water pressure service standard in city is 0.14MPa, the pressure condition of the public pipe network in city, Zhengzhou City compares better, is far longer than the service standard of national regulation, can reach 0.28MPa generally speaking.When the user surpasses the service pressure standard of urban pipe network to the requirement of hydraulic pressure, need set up the secondary water-supply facility.Along with the increase of the building number of plies, the quantity of secondary water-supply facility is more and more, and the traditional secondary way of supplying water is because problems such as the energy waste that process conditions and objective circumstances are brought, water pollution are also outstanding day by day.
At present, common second pressure water supply pattern generally has following two types in China's water-supply systems:
1, water source → water storage facility (water tank or pond) → water pump → high level cistern → user, the conventional pressurized way of supplying water;
2, water source → water storage facility (water tank or pond) → variable frequency pump → user, the variable frequency water supply mode;
The outstanding problem of these two kinds pressurization way of supplying water existence is:
1, water storage facility (water tank or pond) floor space is big, and investment is big;
2, waste energy: the tap water that will have certain pressure is put water storage facility into, and its original pressure drops to atmospheric pressure, and the secondary compression system then needs to begin pressurization from atmospheric pressure, can not make full use of the pipe network overbottom pressure, causes the loss of energy;
3, water pollution:, probably water quality is caused secondary pollution because there are airtight tight, objective circumstances such as cleaning and sterilizing is untimely in water storage facility.
The utility model content:
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of not only environmental protection but also energy-conservation, can not cause secondary pollution, secondary water-supply equipment---the pipe network pressure-superposed intelligent water supply pumping station system of bright prospects is arranged, fully satisfy the demand in market.
The utility model is that the technical scheme that the technical solution problem is taked is:
A kind of pipe network pressure-superposed intelligent water supply pumping station system; contain anti-negative pressure device; water pump assembly; protective arrangement for limiting output voltage and controller; described anti-negative pressure device mainly is made up of current stabilization jar and the vacuum suppresser that is attached thereto; the water inlet of described current stabilization jar is connected with city planting ductwork; its delivery port is connected with the water inlet of water pump assembly; the delivery port of described water pump assembly is communicated with service pipe; on the top of described current stabilization jar and the delivery port of described water pump assembly protective arrangement for limiting output voltage is installed all, described protective arrangement for limiting output voltage and described water pump assembly all are connected with described controller.
Be serially connected with filter between described current stabilization jar and the city planting ductwork, can guarantee that the current stabilization jar has good working environment.
Described vacuum suppresser is communicated with the current stabilization jar by float, if the water supply of water pump assembly and tap water keep balance to the water inlet of current stabilization jar, then vacuum suppresser is isolated from the outside whole current stabilization jar, keeps normal water supply.When this balance is destroyed, drawdown in the current stabilization jar, descend thereby drive float, under the effect of coupling bar, plug moves down, pore is unimpeded, outside air enters into the current stabilization jar through the air inlet on the vacuum suppresser, has destroyed the formation of negative pressure, prevent from city planting ductwork is caused the negative pressure suction, and still can keep the normal water supply of a period of time.Simultaneously, the filter membrane on the vacuum suppresser air inlet can filter the air that enters into the current stabilization jar, thereby has guaranteed the cleaning of water quality, has avoided secondary pollution effectively.
Described water pump assembly is in parallel with a stable-pressure device.For avoiding the inefficiency of water supply system water pump when the low discharge water, thereby adopt stable-pressure device, out of service at system water amount hour frequency conversion speed adjusting pump, utilize stable-pressure device to supply water.Stable-pressure device is pressed gas, water way of contact difference, can be divided into gas compensating type and diaphragm type two classes.Wherein, diaphragm type is that elastic diaphragm is set in stable-pressure device, and with gas-water separation, not only water quality can not produce secondary pollution, and gas can be not soluble in water yet, and therefore, the stable-pressure device in the pipe network pressure-superposed intelligent water supply pumping plant is selected diaphragm type for use.This stable-pressure device is the energy storage device that is made of steel casing, diaphragm of rubber inner bag, diaphragm of rubber separates hydroecium and air chamber fully, when the external world has the water of pressure to charge into the inner bag of stable-pressure device, the air that is sealed in the device is compressed, according to the boyle gas law, gas is compressed the back smaller volume, pressure rising storage power, and expansion of compressed gas can go out the hydraulic pressure in the diaphragm of rubber.
Described water pump assembly adopts the parallel running of 2-3 platform water pump.Can guarantee hydraulic pressure, the water yield of its normal water supply to adopt the parallel running of 2-3 platform according to the selected water pump of user's designed water, when a unit broke down, whole system can also safe operation, and guarantees that water pump is in energy-conservation efficient state all the time.
Described protective arrangement for limiting output voltage is a pressure sensor.According to the hydraulic pressure that the municipal water supply pipe network provides, the minimum pressure of specified devices import department, the pressure signal teletransmission is to the control system of water pump assembly.When water feeding pressure was reduced to qualification pressure, equipment should be out of service automatically in the 30s, or run slowly.
Positive beneficial effect of the present utility model is:
1. why pipe network pressure-superposed intelligent water supply pumping station system of the present utility model can ban water storage facility (water tank or pond) directly links to each other with the municipal water supply pipe network, increased anti-negative pressure device because of the front end at pump sump exactly, this device mainly is made up of current stabilization jar and the vacuum suppresser that is attached thereto.The municipal water supply pipe network comes water directly to advance the current stabilization jar, and water pump draws water from the current stabilization jar and supplies with the user.The current stabilization jar is sealing shape, bearing structure, guarantees that the pressure of municipal water supply pipe network can directly be superimposed upon pump intake.Water level is provided with than water pump steam vent height in the current stabilization jar, makes water pump to realize from water.When municipal water supply pipe network water supply amount was sufficient, in the automatic drain tank of vacuum suppresser of joining with the current stabilization jar behind the air, the current stabilization jar was on one side from the pipe network water inlet, by water pump to user supply water on one side; When the municipal water supply pipe network water supply was not enough, drawdown in the current stabilization jar was because of the suction of water pump can produce negative pressure, pressure stability to pipe network impacts, at this moment vacuum suppresser is eliminated negative pressure automatically, makes to keep atmospheric pressure in the current stabilization jar, in order to avoid user's water around the influence.Water storage volume in the current stabilization jar also can guarantee the water supply volume of user's certain hour simultaneously.
Vacuum suppresser is communicated with the current stabilization jar by float, if the water supply of water pump assembly and tap water keep balance to the water inlet of current stabilization jar, then vacuum suppresser is isolated from the outside whole current stabilization jar, keeps normal water supply.When this balance is destroyed, drawdown in the current stabilization jar, descend thereby drive float, under the effect of coupling bar, plug moves down, pore is unimpeded, outside air enters into the current stabilization jar through the air inlet on the vacuum suppresser, has destroyed the formation of negative pressure, prevent from city planting ductwork is caused the negative pressure suction, and still can keep the normal water supply of a period of time.Simultaneously, the filter membrane on the vacuum suppresser air inlet can filter the air that enters into the current stabilization jar, thereby has guaranteed the cleaning of water quality, has avoided secondary pollution effectively.Make full use of the pipe network overbottom pressure, energy-saving effect is remarkable.Meet " building a conservation-minded society " requirement that present country advocates, the strategy and policy that meet green technology application and development direction and guarantee the sustainable development of socio-economy.
2. pipe network pressure-superposed intelligent water supply pumping station system of the present utility model, this equipment has replaced water storage facility (water tank or pond), traditional open water supply is transformed into closed system, stopped pollution, guaranteed the water quality safety of drinking water, promoted quality of the life, met the requirement of people healthy living; Stop the loss of run, drip, leak and spilling water, and exempted to clean, saved a large amount of precious water resource.
Description of drawings:
Fig. 1 is the structural representation of traditional secondary water system;
Fig. 2 is the structural representation of the pipe network pressure-superposed intelligent water supply pumping station system of the utility model.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is described further:
The 1---city planting ductwork, 2---filter, 3---current stabilization jar, 4---vacuum suppresser, 5---pressure sensor, 6---controller, 7---stable-pressure device, 8---water pump assembly, 9---water tank.
Referring to Fig. 2, a kind of pipe network pressure-superposed intelligent water supply pumping station system, contain anti-negative pressure device, water pump assembly 8, protective arrangement for limiting output voltage and controller 6, described anti-negative pressure device mainly is made up of current stabilization jar 3 and the vacuum suppresser 4 that is attached thereto, the water inlet of described current stabilization jar 3 is connected with city planting ductwork 1, its delivery port is connected with the water inlet of water pump assembly 8, the delivery port of described water pump assembly 8 is communicated with service pipe, on the top of described current stabilization jar 3 and the delivery port of described water pump assembly 8 pressure sensor 5 with voltage-limiting protection effect is installed respectively, pressure sensor 5 and described water pump assembly all are connected with described controller 6; Be serially connected with filter 2 between described current stabilization jar 3 and the city planting ductwork 1; Described vacuum suppresser 4 is communicated with current stabilization jar 3 by float; Described water pump assembly 8 is in parallel with a stable-pressure device 7; Described stable-pressure device 7 is made of steel casing, diaphragm of rubber inner bag; Described water pump assembly adopts 2 water pump parallel runnings.
During use: the municipal water supply pipe network comes water directly to advance the current stabilization jar, and water pump draws water from the current stabilization jar and supplies with the user.The current stabilization jar is sealing shape, bearing structure, guarantees that the pressure of municipal water supply pipe network can directly be superimposed upon pump intake.Water level is provided with than water pump steam vent height in the current stabilization jar, makes water pump to realize from water.When municipal water supply pipe network water supply amount was sufficient, in the automatic drain tank of vacuum suppresser of joining with the current stabilization jar behind the air, the current stabilization jar was on one side from the pipe network water inlet, by water pump to user supply water on one side; When the municipal water supply pipe network water supply was not enough, drawdown in the current stabilization jar was because of the suction of water pump can produce negative pressure, pressure stability to pipe network impacts, at this moment vacuum suppresser is eliminated negative pressure automatically, makes to keep atmospheric pressure in the current stabilization jar, in order to avoid user's water around the influence.Water storage volume in the current stabilization jar also can guarantee the water supply volume of user's certain hour simultaneously.
Vacuum suppresser is communicated with the current stabilization jar by float, if the water supply of water pump assembly and tap water keep balance to the water inlet of current stabilization jar, then vacuum suppresser is isolated from the outside whole current stabilization jar, keeps normal water supply.When this balance is destroyed, drawdown in the current stabilization jar, descend thereby drive float, under the effect of coupling bar, plug moves down, pore is unimpeded, outside air enters into the current stabilization jar through the air inlet on the vacuum suppresser, has destroyed the formation of negative pressure, prevent from city planting ductwork is caused the negative pressure suction, and still can keep the normal water supply of a period of time.Simultaneously, the filter membrane on the vacuum suppresser air inlet can filter the air that enters into the current stabilization jar, thereby has guaranteed the cleaning of water quality, has avoided secondary pollution effectively.
Because pipe network pressure-superposed intelligent water supply pumping station system of the present utility model is a full-closed structure, stop the loss of run, drip, leak and spilling water again, and exempted to clean, saved a large amount of precious water resource.