CN1904237A - Pipe network superimposed water supply device - Google Patents

Abstract

This invention relates to a automatic water supply equipment, specific to say it is a kind of pipe network press automatic water supply equipment. Its characteristic lies in that the lower isolated cavity's water inlet connects with municipal pipeline through a backflow prevention valve, the lower isolated cavity's water outlet connects with water pump unit's water inlets, and the lower isolated cavity connects with buffer tank's upper isolated cavity through the electric control valve and a flow regulating valve. The bottom of lower isolated cavity is to the outside through a passage of pipeline. This pipeline's one branch connects with the air filter through the check valve, and the other pipeline connects with buffer tank's upper cavity through the check valve. Under the buffer tank's lower cavity there sets the liquid level detector. This invention has the following advantages: a tin of much use, this is good to the equipment's structure design and contracts the equipments physical volume availably, it saves the building area and lowers the cost, what more beneficial is that it changes the buffer tank into the energy store buffer tank, this can release the storing pressure water when needed at any time and compensate the municipal's water supply.

Description

Pipe network superimposed water supply device

[technical field]

The present invention relates to automatic water supply device, specifically a kind of pipe network superimposing pressure automatic water supply equipment.

[background technology]

Traditional automatic water supply equipment is to be the secondary booster supply equipment at water source with the pond, and the air pressure tank that connects by the equipment delivery port during shutdown is kept pressure.This secondary booster supply equipment constitutes simple, and operation control is convenient.Its shortcoming is that energy consumption is big, water source, pond vulnerable to pollution.Beginning emerging pipe network Pressure-superposed water supply equipment in recent years directly is the water source with the city planting ductwork, because system is airtight, pressurized water supply on municipal hydraulic pressure basis, how many differences what mends, have health and energy-conservation two big advantages, but also there are some problems in product at present: the supporting current stabilization jar of product is pure water tank at present on the one hand, have only when producing negative pressure in the jar, water capacity just can be used effectively in jar, be used to compensate the deficiency of municipal water supply, this lift to supporting water pump is had relatively high expectations, and has limited the overall energy-saving effect of equipment.Product is shut down pressure holding function for keeping at present on the other hand, also need the voltage stabilizing air pressure tank be set in the equipment outlet, and this can cause equipment volume bigger, and it is big to take building area, and the structure design of equipment also is difficult to handle.

[summary of the invention]

The objective of the invention is to overcome the deficiencies in the prior art, a kind of network pressure-superposition water supply equipment that adopts complex function energy storage surge tank is provided, the present invention only needs a supporting pressure water pot, adopt time-sharing multiplexing technology, promptly as the municipal water sources surge tank again as the voltage stabilizing air pressure tank of equipment delivery port.

A kind of pipe network superimposed water supply device, comprise water pump assembly, surge tank, electrically-controlled valve, flap valve and connecting line, the maintenance valve, also comprise control instrument and switch board, the water inlet of following separate space 4 joins with municipal pipeline by a backflow-proof valve 2, the delivery port of following separate space 4 and the water inlet manifold of water pump assembly 17 join, following separate space also joins by the last separate space 18 of electrically-controlled valve and choke valve and surge tank, following separate space top is arrived outside the jar by one section pipeline, a branch of this pipeline connects air filter 5 by flap valve 6, another branch is connected with the epicoele 18 of surge tank through flap valve 7, liquid level detector 8 is equipped with in the last separate space bottom of surge tank, and last separate space inlet and outlet pipe connects separate space 18 inlet and outlet pipes mutually by a flap valve and the outfall sewer road 17 of water pump assembly and also has the outlet pipeline of a branch and a low-capacity pump to join.Described buffer is a pressurized tank, is divided into two separate spaces up and down in tank interior by tapered end socket; The last separate space of described buffer is the pressurized tank of big volume, and following separate space is the pressure resistant vessel of less volume; Separate space is made of the pipeline of one section suitable bore and suitable length under the described buffer; Separate space is an air pressure tank on the described surge tank, the water inlet of following separate space joins by an electrically-controlled valve and municipal pipeline, the water inlet manifold of its delivery port and water pump assembly joins, and following separate space also joins by the last separate space inlet and outlet pipe of an electrically-controlled valve and choke valve and surge tank.

Adopt the pipe network Pressure-superposed water supply equipment of the technical program, its beneficial effect is, using one jar more, the structure design that helps equipment, dwindled equipment volume effectively, saved building area, reduced cost, more useful is that surge tank in the common equipment has been made into the energy storage surge tank, so just can discharge the pressure water source of storing, in order to the deficiency of compensation municipal water supply, owing to this kind energy storage surge tank reason in the moment that needs arbitrarily, design can consider during pressure of supply water the to superpose minimum hydraulic pressure of city planting ductwork, thus equipment is joined pump lift and can be hanged down more than 10 meters than common product.Power of motor can reduce by 1 specification.

[description of drawings]

Fig. 1 is a structural representation of the present invention.

Referring to Fig. 1,1 is instrumentation, and 2 is backflow-proof valve, and 3 is surge tank, 4 are following separate space, and 5 is air filter, and 6 is flap valve, 7 is flap valve, and 8 is liquid level detector, and 9 is electrically-controlled valve, 10 is choke valve, and 11 is water pump, and 12 is water pump, 13 is water pump, and 14 is flap valve, and 15 is signal collecting device, 16 is switch board, and 17 is the water pump assembly water inlet manifold, and 18 is last separate space.

Among Fig. 1, supporting two the same specification feed pumps 12 of water pump assembly, 13, also dispose 1 little Flow pump 11, the water inlet manifold of equipment is equipped with control instrument 1, and water inlet manifold is through automatically controlled backflow-proof valve 2 with surge tank under the water inlet of separate space 4 join the delivery port of separate space 4 and water pump assembly under the surge tank Inlet pipeline join, separate space 4 is also by an electrically-controlled valve 9 and a choke valve 10 under the surge tank Join with the upper separate space of surge tank 3, one section pipeline is also drawn outside tank in separate space 4 tops under the surge tank, A branch of this pipeline connects a check-valves 6 and connects an air cleaner 5, another branch again Be connected with the upper separate space of surge tank through check-valves 7, the liquid level detection is equipped with in the upper separate space bottom of surge tank Device 8, upper separate space inlet and outlet pipe is by the outfall sewer road phase of a check-valves 14 with water pump assembly Connect, upper separate space inlet and outlet pipe also has the outlet pipeline of a branch and a low-capacity pump 11 to join. Switch board 16 is controlled the operation implementation procedure of equipment according to control instrument 1,15 signals of gathering, Thereby coordinate the operation of complete set of equipments.

[specific embodiment]

Referring to Fig. 1, the operation control method of this equipment is as follows: debugging is the equipment of operation normally, keeps the hydraulic pressure of user's pipe network between down period by separate space on the surge tank 3; Separate space energy storage water is used consumption on surge tank 3, when making instrument 15 detect user's pipe network water pressure to be reduced to the low pressure limit of setting, and instrument 1 detection water inlet pressure is normal, equipment starts operation automatically, what at first start is feed pump 11, this pump extracts municipal water sources by separate space under automatically controlled backflow-proof valve 2 and the surge tank 4, makes low discharge for user's pipe network by flap valve 14 on the one hand and supplies water, also be separate space moisturizing energy storage on the surge tank 3 on the other hand; If user's pipe network water increases, feed pump 11 can not satisfy the demands, then start second feed pump 12 (or 13) frequency control constant-pressure operation in parallel automatically, continue to increase as water supply volume, two parallels connection of pumps operation still can not satisfy the demands, then start the 3rd feed pump 13 (or 12) frequency control constant-pressure operation in parallel automatically, because the operation of feed pump 12 and 13 is direct water source with 3 times separate spaces of surge tank 4, and have a certain amount of press water under the surge tank in the separate space 4, therefore the municipal water sources pipe network there is cushioning effect.If user's pipe network water supply volume reduces, so that make the feed pump running frequency low excessively, then can subtract pump automatically, subtract feed pump 12 (or 13) earlier, when reducing to last feed pump 11, get back to again and keep constant pressure water supply operation in the single-pump flow scope, at this moment liquid level detector 8 can detect liquid level, as detects gas, thinks normal; As detect water; think separate space deficency on the surge tank 3; switch board 16 can be closed automatically controlled backflow-proof valve 2; feed pump 11 is just extracted the water of separate space under the surge tank 4 out; inject separate space or user's pipe network on the surge tank 3; under surge tank, form negative pressure in the separate space 4; air then enters separate space 4 under the surge tank by flap valve 6 and air filter 5; the running time of time-delay control feed pump 11; treat that separate space 4 advances sufficient air under the surge tank; feed pump 11 is shut down; open then electrically-controlled valve 9 by separate space on the surge tank 3 to 4 water-fillings of separate space under the surge tank, the aperture of regulating choke valve 10 can guarantee the water supply of user's pipe network in to 4 water-fillings of separate space under the surge tank, the air under the surge tank in the separate space 4 is pressed into separate space on the surge tank 3 by flap valve 7; finish the tonifying Qi process, promptly close electrically-controlled valve 9 then and open automatically controlled backflow-proof valve 2 and feed pump 11.The tonifying Qi process can be carried out repeatedly according to the detection case of liquid level detector 8.During feed pump 11 isolated operations; reduce to very low or when being zero as user's pipe network water supply volume; equipment will enter stopping process automatically: feed pump 11 quickens operation until the upper pressure limit that is pressurized to setting to separate space water-filling on the surge tank 3; feed pump 11 autostops then; also be equipment downtime, separate space start-stop organizational security pressure effect on the surge tank 3 of equipment at this moment.When the equipment run duration detects the minimum swabbing pressure that water inlet pressure allows less than municipal water sources as instrument 1 occurring, equipment will start automatically controlled backflow-proof valve 2 and close inlet pipeline and autostop, to avoid the excessive suction to municipal water sources; Simultaneously automatically controlled backflow-proof valve 2 prevents that in addition aqueous reflux from going into the function of municipal water source tube net.

Claims (5)

1, a kind of pipe network superimposed water supply device, comprise water pump assembly, surge tank, electrically-controlled valve, flap valve and connecting line, the maintenance valve, also comprise control instrument and switch board, it is characterized in that the water inlet of separate space (4) joins by a backflow-proof valve (2) and municipal pipeline down, the water inlet manifold (17) of the delivery port of following separate space (4) and water pump assembly joins, following separate space also joins by the last separate space (18) of electrically-controlled valve and choke valve and surge tank, following separate space top is arrived outside the jar by one section pipeline, a branch of this pipeline connects air filter (5) by flap valve (6), another branch is connected with the epicoele (18) of surge tank through flap valve (7), liquid level detector (8) is equipped with in the last separate space bottom of surge tank, last separate space inlet and outlet pipe joins by the outfall sewer road (17) of a flap valve and water pump assembly, and last separate space (18) inlet and outlet pipe also has the outlet pipeline of a branch and a low-capacity pump to join.

2, pipe network superimposed water supply device according to claim 1 is characterized in that described buffer is a pressurized tank, is divided into two separate spaces up and down in tank interior by tapered end socket.

3, pipe network superimposed water supply device according to claim 1 is characterized in that, the last separate space of described buffer is the pressurized tank of big volume, and following separate space is the pressure resistant vessel of less volume.

4, pipe network superimposed water supply device according to claim 1 is characterized in that separate space under the described buffer is made of the pipeline of one section suitable bore and suitable length.

5, pipe network superimposed water supply device according to claim 1, it is characterized in that separate space is an air pressure tank on the described surge tank, the water inlet of following separate space joins by an electrically-controlled valve and municipal pipeline, the water inlet manifold of its delivery port and water pump assembly joins, and following separate space also joins by the last separate space inlet and outlet pipe of an electrically-controlled valve and choke valve and surge tank.

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