CN204510338U - A kind of without negative pressure pipe network pressurized frequency change water supply facilities - Google Patents
A kind of without negative pressure pipe network pressurized frequency change water supply facilities Download PDFInfo
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- CN204510338U CN204510338U CN201520146887.5U CN201520146887U CN204510338U CN 204510338 U CN204510338 U CN 204510338U CN 201520146887 U CN201520146887 U CN 201520146887U CN 204510338 U CN204510338 U CN 204510338U
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- pressure
- pipe
- water supply
- negative pressure
- water inlet
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 230000001702 transmitter Effects 0.000 claims abstract description 22
- 239000012530 fluid Substances 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 3
- 239000008399 tap water Substances 0.000 abstract description 5
- 235000020679 tap water Nutrition 0.000 abstract description 5
- 239000008400 supply water Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000486 side effect Toxicity 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Abstract
The utility model discloses a kind of without negative pressure pipe network pressurized frequency change water supply facilities, comprise frequency-converting control device, water inlet pipe, outlet pipe and the centrifugal pump be located between described water inlet pipe and outlet pipe, described water inlet pipe is provided with intake pressure transmitter and pressure switch, described outlet pipe is provided with discharge pressure transmitter and pressurized tank, it is characterized in that, also comprise sub controlling unit and flow compensator, described intake pressure transmitter, pressure switch, be electrically connected with described frequency-converting control device and described sub controlling unit with discharge pressure transmitter all simultaneously, described flow compensator is arranged on described water inlet pipe.Equipment of the present utility model is directly connected with tap water pipe network, and overlapped supercharging on the basis of the original pressure of pipe network, takes full advantage of the pressure of city planting ductwork, saves electric energy.Can ensure that peak period supplies water continually and steadily, really realize free of discontinuities and supply water, stable, reliability is high, even if also can ensure low district user water when having a power failure.
Description
Technical field
The utility model relates to the Pressure Control Technology field of water pump water supply system, is specifically related to a kind of without negative pressure pipe network pressurized frequency change water supply facilities.
Background technology
Traditional way of supplying water be unable to do without reservoir, and the water in reservoir is generally supplied by tap water pipe network, like this, becomes zero after originally having the water of pressure to enter pond, pressurization of then starting from scratch, and causes a large amount of electric power energy wastes.Non-negative pressure water-supply installation, it is a kind of desirable energy-saving water supply equipment, it is a kind of can directly connection with tap water pipe network, the secondary water supply equipment of any side effect can not be produced to tap water pipe network, the basis of municipal ductwork pressure directly laminates water supply, energy conservation, and there is the plurality of advantages such as totally-enclosed, pollution-free, occupation of land amount is little, quick for installation, reliable, easy to maintenance.
Utility model content
The purpose of this utility model is to make up the deficiencies in the prior art, provide a kind of laminate on municipal water supply pressure-based water supply without negative pressure pipe network pressurized frequency change water supply facilities, not only having made rational use of resources but also thoroughly having eliminated affect the negative pressure of municipal network water supply, guarantee normal water supply.
In order to reach the purpose of this utility model, technical scheme is as follows:
A kind of without negative pressure pipe network pressurized frequency change water supply facilities, comprise frequency-converting control device, water inlet pipe, outlet pipe and the centrifugal pump be located between described water inlet pipe and outlet pipe, described water inlet pipe is provided with intake pressure transmitter and pressure switch, described outlet pipe is provided with discharge pressure transmitter and pressurized tank, it is characterized in that, also comprise sub controlling unit and flow compensator, described intake pressure transmitter, pressure switch, be electrically connected with described frequency-converting control device and described sub controlling unit with discharge pressure transmitter all simultaneously, described flow compensator is arranged on described water inlet pipe.
Preferably, described outlet pipe is provided with electro connecting pressure gauge, described electro connecting pressure gauge is electrically connected with described frequency-converting control device and sub controlling unit simultaneously.
Preferably, described flow compensator is provided with without negative pressure device.
Preferably, be provided with and have flexible barrier film in described pressurized tank, described pressurized tank interior separation is become fluid zone and gas zone two parts by described barrier film.
Preferably, described pressurized tank is connected with the interface arrangement providing Compressed Gas.
The beneficial effect that the utility model has:
Equipment is directly connected with tap water pipe network, overlapped supercharging on the basis of the original pressure of pipe network, and the pressure taking full advantage of city planting ductwork saves electric energy.Totally-enclosed pipeline runs, and avoids race, emits, drips, the water resource utility model such as seepage.System takes into full account water demand peak period, ensures to supply water continually and steadily, really realizes free of discontinuities and supplies water, even and if also can ensure low district user water when having a power failure.Stable, in system during certain component failure, there is functionally similar miscellaneous part to assist, ensure that equipment runs, improve the reliability of complete equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model without negative pressure pipe network pressurized frequency change water supply facilities;
Fig. 2 be Fig. 1 overlook deployed configuration schematic diagram;
Fig. 3 is the structural representation of pressurized tank in Fig. 1.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is further described, but protection domain of the present utility model is not only confined to embodiment.
Shown in composition graphs 1 and Fig. 2, a kind of without negative pressure pipe network pressurized frequency change water supply facilities, the centrifugal pump 4 comprising frequency-converting control device 14, sub controlling unit 18, flow compensator 17, water inlet pipe 1, outlet pipe 8 and be located between water inlet pipe 1 and outlet pipe 8.Be provided with flange butterfly 2 between water inlet pipe 1 and centrifugal pump 4, the downside of centrifugal pump 4 is provided with channel steel base 3, for fixing centrifugal pump 4.Discharging bent-tube 5, flap valve 6 and flexible joint 7 is connected with between centrifugal pump 4 and outlet pipe 8.Centrifugal pump 4 has multiple, is installed in parallel between water inlet pipe 1 and outlet pipe 8, and centrifugal pump 4 is vertical multi-stage centrifugal pump, and centrifugal pump 4 is electrically connected with frequency-converting control device 14, and it runs the control by frequency-converting control device 14.
Water inlet pipe 1 is provided with flow compensator 17, intake pressure transmitter 15 and pressure switch 16, in fact water inlet pipe 1 is connected with the supply channel of city planting ductwork, intake pressure transmitter 15 and pressure switch 16 all for testing the hydraulic pressure in water inlet pipe 1, i.e. pipe network water pipe, and are both electrically connected with frequency-converting control device 14.When intake pressure transmitter 15 or pressure switch 16 test hydraulic pressure in water inlet pipe 1 lower than a certain setting value; now the hydraulic pressure of pipe network is in lower abnormal condition; whole water supply facilities is closed by frequency-converting control device 14, namely stops supplying water to user, the water supply in protection pipe network.Intake pressure transmitter 15 and pressure switch 16 have similar function in the present embodiment, when its objective is to prevent one of them to lose efficacy, still can test hydraulic pressure in water inlet pipe 1, playing dual fail-safe effect.Flow compensator 17 is provided with without negative pressure device, can store water in flow compensator 17, when hydraulic pressure in outlet pipe 8 declines, flow compensator 17 can supply water, when water supply acquires a certain degree, can prevent flow compensator 17 from producing negative pressure without negative pressure device.
Outlet pipe 8 is provided with discharge pressure transmitter 12, electro connecting pressure gauge 13 and pressurized tank 10, is connected with ball valve 11 between discharge pressure transmitter 12 and outlet pipe 8, discharge pressure transmitter 12 and electro connecting pressure gauge 13 are all electrically connected with frequency-converting control device 14.Discharge pressure transmitter 12 and electro connecting pressure gauge 13, all for testing out the hydraulic pressure in water pipe 8, play double insurance effect.When in system main to test higher limit still lower than a certain setting of hydraulic pressure in outlet pipe 8 for pump 4 all runs setting-up time time, whole water supply facilities is closed by frequency-converting control device 14, stops supplying water, in order to protect whole frequency-conversion water-supplying device to user.
In addition, continue shown in composition graphs 2, intake pressure transmitter 15, pressure switch 16, discharge pressure transmitter 12, electro connecting pressure gauge 13 are all also electrically connected with sub controlling unit 18, namely the signal being equivalent to them has passed to frequency-converting control device 14 and sub controlling unit 18 simultaneously, its objective is that, in order to when frequency-converting control device 14 breaks down, sub controlling unit 18 can control the operation of whole frequency-conversion water-supplying device according to signal.
When the hydraulic pressure testing outlet pipe 8 reaches starting pressure value P0, frequency-converting control device 14 according to signal enabling centrifugal pump 4 for supercharging, the rotating speed of centrifugal pump 4 is adjustable, and when the hydraulic pressure testing outlet pipe 8 reaches stopping pressure value P 1, centrifugal pump 4 quits work.And if a centrifugal pump 4 reaches maximum speed, when hydraulic pressure does not reach P1 yet in outlet pipe 8, start other centrifugal pump 4 successively, until hydraulic pressure reaches P1 value in outlet pipe 8.
Shown in composition graphs 3, barrier film 103 is provided with in pressurized tank 10, pressurized tank 10 interior separation is become fluid zone 101 and gas zone 102 two parts by barrier film 103, and barrier film 103 has elasticity and can not through gas and liquid, and therefore the volume size of fluid zone 101 and gas zone 102 can change.The water flowed through in outlet pipe 8 to flow in fluid zone 101 and to be full of whole fluid zone 101, and the Compressed Gas be full of in gas zone 102, such as compressed air or compressed nitrogen.When hydraulic pressure in whole pipeline is normal, or when hydraulic pressure is higher than normal value in outlet pipe 8, in fluid zone 101, be full of water, and extrude to gas zone 102; When hydraulic pressure in outlet pipe 8 declines, the water stored in fluid zone 101 is supplemented in outlet pipe 8, and flexible barrier film 103 extrudes to fluid zone 101 under Compressed Gas effect simultaneously, avoids pressure in outlet pipe 8 to reduce and even produces negative pressure, play certain pressurization.The interface arrangement 104 that Compressed Gas is provided to gas zone 102 is also provided with outside pressurized tank 10.
Last it is noted that above embodiment only in order to illustrate the utility model and and technical scheme described by unrestricted the utility model, therefore, although this manual has been described in detail the utility model with reference to each above-mentioned embodiment, but, those of ordinary skill in the art is to be understood that, still can modify to the utility model or equivalent replacement, and all do not depart from technical scheme and the improvement thereof of spirit and scope of the present utility model, it all should be encompassed in right of the present utility model.
Claims (5)
1. one kind without negative pressure pipe network pressurized frequency change water supply facilities, comprise frequency-converting control device (14), water inlet pipe (1), outlet pipe (8) and the centrifugal pump (4) be located between described water inlet pipe (1) and outlet pipe (8), described water inlet pipe (1) is provided with intake pressure transmitter (15) and pressure switch (16), described outlet pipe (8) is provided with discharge pressure transmitter (12) and pressurized tank (10), it is characterized in that, also comprise sub controlling unit (18) and flow compensator (17), described intake pressure transmitter (15), pressure switch (16), be electrically connected with described frequency-converting control device (14) and described sub controlling unit (18) with discharge pressure transmitter (12) all simultaneously, described flow compensator (17) is arranged on described water inlet pipe (1).
2. according to claim 1 without negative pressure pipe network pressurized frequency change water supply facilities, it is characterized in that, described outlet pipe (8) is provided with electro connecting pressure gauge (13), described electro connecting pressure gauge (13) is electrically connected with described frequency-converting control device (14) and sub controlling unit (18) simultaneously.
3. according to claim 2ly it is characterized in that without negative pressure pipe network pressurized frequency change water supply facilities, (17) are provided with without negative pressure device described flow compensator.
4. according to claim 2 without negative pressure pipe network pressurized frequency change water supply facilities, it is characterized in that, be provided with in described pressurized tank (10) and have flexible barrier film (103), described pressurized tank (10) interior separation is become fluid zone (101) and gas zone (102) two parts by described barrier film (103).
5. according to claim 4ly it is characterized in that without negative pressure pipe network pressurized frequency change water supply facilities, described pressurized tank (10) is connected with the interface arrangement (104) providing Compressed Gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146887.5U CN204510338U (en) | 2015-03-13 | 2015-03-13 | A kind of without negative pressure pipe network pressurized frequency change water supply facilities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520146887.5U CN204510338U (en) | 2015-03-13 | 2015-03-13 | A kind of without negative pressure pipe network pressurized frequency change water supply facilities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204510338U true CN204510338U (en) | 2015-07-29 |
Family
ID=53708330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520146887.5U Active CN204510338U (en) | 2015-03-13 | 2015-03-13 | A kind of without negative pressure pipe network pressurized frequency change water supply facilities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204510338U (en) |
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2015
- 2015-03-13 CN CN201520146887.5U patent/CN204510338U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |