CN102080397A - Self-priming frequency converter water supply equipment - Google Patents
Self-priming frequency converter water supply equipment Download PDFInfo
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- CN102080397A CN102080397A CN2009102259999A CN200910225999A CN102080397A CN 102080397 A CN102080397 A CN 102080397A CN 2009102259999 A CN2009102259999 A CN 2009102259999A CN 200910225999 A CN200910225999 A CN 200910225999A CN 102080397 A CN102080397 A CN 102080397A
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Abstract
Self-priming frequency converter water supply equipment comprises a negative pressure tank provided with an overflow control valve, a water pump, a check valve, a butterfly valve, an outfall sewer, a pressure sensor, a frequency converter control cabinet, a check valve by-pass and a water suction pipe; water is supplied for the negative pressure tank through the check valve by means of the outfall sewer; the water level of the negative pressure tank is controlled by the overflow control valve arranged on the negative pressure tank; the water in the negative pressure tank can be prevented from being overflowed and can be guided reliably so that a small circle is prevented from being formed to waste the energy; and a water pump sucks water through the negative pressure tank under the combined control of the frequency converter control cabinet and the pressure sensor so that the full-automatic frequency converter constant-pressure water supply is realized.
Description
Technical field
The present invention relates to a kind of frequency conversion water supply facilities, specifically a kind of water pump that is applied in is a frequency conversion water supply facilities of giving building supply under the self-priming condition.
Background technology
At present, the duty of water pump, self filling type and self-priming two kinds are arranged usually, in order to guarantee reliable water supply, all require usually to adopt self filling type, but for some special places, the position that the pond is built is lower, water pump can't satisfy the self filling type working method, can only adopt self-priming working method, so just requires must pour into diversion earlier before the starting mode of pump.The mode of perfusion diversion has operation, vacuum pump diversion and traditional negative-pressure cup diversion mode manually usually.The artificial diversion need be installed bottom valve on water pump suction pipe, increased the resistance of pump sump pipeline, has reduced the suction head of water pump, and complex operation, and the bottom valve fault rate is high again, inconvenient maintenance; Adopt the vacuum pump diversion, control system is complicated, and investment is big, daily troublesome maintenance; And adopt traditional negative-pressure cup diversion mode to need in time to carry out moisturizing to negative-pressure cup, moisturizing can be adopted manually or automatically, it is on duty that manually moisturizing needs the special messenger, irregularly carries out moisturizing, has increased staff's the amount of labour; And automatic water supplement draws the outfall sewer from water pump usually, after water is full, overflows in the pond by the negative-pressure cup suction water pipe, forms a small-sized circulation, causes energy dissipation.
Though self-absorption water supply equipment has the mode of above several perfusion diversions, cause water pump not go up the phenomenon of water but diversion occurs falling, even cause mechanical water pump bad seals fault because of idle running through regular meeting.
Summary of the invention
It is unreliable to the objective of the invention is at existing self-absorption water supply equipment diversion mode, diversion often appears falling, influence normal water supply, damage problems such as water pump, a kind of simple, easy to use, that reliability is high, operating cost is low a kind of self-absorption water supply equipment of controlling is provided.
The objective of the invention is to be achieved through the following technical solutions:
A kind of self-priming frequency conversion water supply facilities, it comprises negative-pressure cup, water pump, flap valve, butterfly valve, outfall sewer, pressure sensor, variable frequency control cabinet, flap valve bypass, the suction water pipe that the overflow control valve is housed, pass through the flap valve bypass to the negative-pressure cup moisturizing by outfall sewer, control the negative-pressure cup water level by the overflow control valve of installing on the negative-pressure cup, guarantee that the water in the negative-pressure cup can overflow and reliably diversion again, water pump is under the acting in conjunction of variable frequency control cabinet and pressure sensor, by the negative-pressure cup suction, realize full-automatic frequency conversion constant pressure water supply.
The invention has the beneficial effects as follows, under the control of overflow control valve, both guaranteed that water level satisfied the diversion requirement in the negative-pressure cup, overflow phenomena can not occur again, make water pump under the control of variable frequency control cabinet, realize reliable constant pressure water supply, control simple and reliablely, operating cost is low.
Description of drawings
Fig. 1 is the principle schematic of self-priming frequency conversion water supply facilities of the present invention,
Fig. 2 is an overflow control valve structural representation of the present invention.
Among the figure, 1, negative-pressure cup, 2, the overflow control valve, 3, suction water pipe, 4, butterfly valve, 5, water pump, 6, the flap valve bypass, 7, flap valve, 8, pressure sensor, 9, the variable frequency control cabinet, 10, outfall sewer, 11, the water inlet adpting flange, 12, upper limit orifice plate, 13, the fixing seal plate, 14, rubber seal, 15, the movable sealing plate, 16, go up mounting flange, 17, mounting flange down, 18, floating drum, 19, the lower limit orifice plate, 20, guide peg, 21, upper valve body, 22, valve body down, 23, the pond.
The specific embodiment
Below with reference to accompanying drawing, the specific embodiment of the present invention is done further detailed description:
Overflow control valve (2) comprises into water adpting flange (11), upper limit orifice plate (12), fixing seal plate (13), rubber seal (14), movable sealing plate (15), last mounting flange (16), following mounting flange (17), floating drum (18), lower limit orifice plate (19), guide peg (20), upper valve body (21) and following valve body (22), floating drum (18) is welded together with movable sealing plate (15), and be fixed with guide peg (20) respectively, limit floating drum (18) and movable sealing plate (15) can only be up and down by upper limit orifice plate (12) and lower limit orifice plate (19), upper limit orifice plate (12) and lower limit orifice plate (19) are porous plate, being beneficial to current passes through, overflow control valve (2) is welded to negative-pressure cup (1) top by following valve body (22), is connected with upper valve body (21) by mounting flange again.The delivery port of negative-pressure cup (1) is connected to the water inlet of water pump (5), at water pump (5) delivery port flap valve (7) is housed, a flap valve bypass (6) that gate valve is housed in parallel with flap valve (7), pressure sensor (8) is housed on water pump water outlet house steward (10), negative-pressure cup (1) communicates with the pond by suction water pipe, and water pump (5) all is connected by lead with variable frequency control cabinet (9) with pressure sensor (8).
This kind equipment adopts two usually with charging pump, when equipment is debugged for the first time, anhydrous in the negative-pressure cup (1), need manually perfusion diversion, after filling diversion, the interior water level of negative-pressure cup (1) exceeds water pump vane, water pump is a self filling type, after water pump (5) starts, outwards supplies water, the interior drawdown of negative-pressure cup (1), form negative pressure in negative-pressure cup (1), when negative pressure acquires a certain degree, extraneous atmospheric pressure is pressed into negative-pressure cup with the water in the pond by suction water pipe, keep the negative-pressure cup water level to be higher than water pump vane, the equipment operate as normal.When equipment moves, reason such as tight and negative pressure vaporization can reduce the inner water of negative-pressure cup (1) gradually owing to seal for pipe joints, but when the water pump exchange, after former work water pump is out of service, be transformed into other water pump operation, the water of outfall sewer flow back in the negative-pressure cup (1) by flap valve bypass (6), the interior water level of negative-pressure cup (1) rises gradually, after rising to certain water level, the floating drum (18) of overflow control valve (2) rises under the buoyancy of water effect, make movable sealing plate (15) be fixed sealing plate (13), with water inlet sealing, prevent that the water in the negative-pressure cup (1) from overflowing to pond (23) by suction water pipe (3), prevent to form partial circulating and waste energy, water pump is in variable frequency control cabinet (9), under the jointly controlling of pressure sensor (8), realize constant pressure water supply.
Institute it should be noted that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to the foregoing description, still can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. self-priming frequency conversion water supply facilities, it comprises negative-pressure cup, overflow control valve, water pump, flap valve, butterfly valve, outfall sewer, pressure sensor, variable frequency control cabinet, flap valve bypass, suction water pipe, it is characterized in that the overflow control valve is welded to the negative-pressure cup top by following valve body.
2. a kind of self-priming frequency conversion water supply facilities according to claim 1 is characterized in that in pump outlet flap valve flap valve bypass that gate valve is housed in parallel.
3. a kind of self-priming frequency conversion water supply facilities according to claim 1 is characterized in that the overflow control valve is to be grouped together by adpting flange by two valve bodies up and down.
4. according to claim 1 or 3 described a kind of self-priming frequency conversion water supply facilitiess, it is characterized in that adopting between the floating drum of overflow control valve and movable sealing plate, guide peg being welded to connect.
5. according to claim 1 or 3 described a kind of self-priming frequency conversion water supply facilitiess, it is characterized in that the fixing seal plate of overflow control valve and the sealing surface between the movable sealing plate have adopted rubber seal to seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102259999A CN102080397A (en) | 2009-11-26 | 2009-11-26 | Self-priming frequency converter water supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102259999A CN102080397A (en) | 2009-11-26 | 2009-11-26 | Self-priming frequency converter water supply equipment |
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| Publication Number | Publication Date |
|---|---|
| CN102080397A true CN102080397A (en) | 2011-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102259999A Pending CN102080397A (en) | 2009-11-26 | 2009-11-26 | Self-priming frequency converter water supply equipment |
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| CN (1) | CN102080397A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409726A (en) * | 2011-09-05 | 2012-04-11 | 深圳市鸿效科技有限公司 | Pressure stabilizing and laminating water supply equipment |
| CN103031874A (en) * | 2012-12-17 | 2013-04-10 | 方城县豪雨太阳能制品有限公司 | Energy-utilizing water suction system |
| CN106035002A (en) * | 2016-06-15 | 2016-10-26 | 镇江市都市生态农业有限公司 | Ecological agriculture water supplying device |
| CN106762686A (en) * | 2016-12-14 | 2017-05-31 | 江苏大学 | A kind of automatic clutch device for being applied to self-priming sprinkling irrigation pump assembly |
-
2009
- 2009-11-26 CN CN2009102259999A patent/CN102080397A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409726A (en) * | 2011-09-05 | 2012-04-11 | 深圳市鸿效科技有限公司 | Pressure stabilizing and laminating water supply equipment |
| CN102409726B (en) * | 2011-09-05 | 2014-06-25 | 深圳市鸿效科技有限公司 | Pressure stabilizing and laminating water supply equipment |
| CN103031874A (en) * | 2012-12-17 | 2013-04-10 | 方城县豪雨太阳能制品有限公司 | Energy-utilizing water suction system |
| CN103031874B (en) * | 2012-12-17 | 2015-06-10 | 方城县豪雨太阳能制品有限公司 | Energy-utilizing water suction system |
| CN106035002A (en) * | 2016-06-15 | 2016-10-26 | 镇江市都市生态农业有限公司 | Ecological agriculture water supplying device |
| CN106762686A (en) * | 2016-12-14 | 2017-05-31 | 江苏大学 | A kind of automatic clutch device for being applied to self-priming sprinkling irrigation pump assembly |
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Application publication date: 20110601 |