CN204113605U - Water pump constant pressure frequency conversion controller - Google Patents
Water pump constant pressure frequency conversion controller Download PDFInfo
- Publication number
- CN204113605U CN204113605U CN201420274102.8U CN201420274102U CN204113605U CN 204113605 U CN204113605 U CN 204113605U CN 201420274102 U CN201420274102 U CN 201420274102U CN 204113605 U CN204113605 U CN 204113605U
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- pressure
- middle body
- water pump
- frequency conversion
- water
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Abstract
The utility model provides a kind of water pump constant pressure frequency conversion controller, belongs to Pressure Control Technology field.It solve that existing pump variable frequency controller cost is high, market share is low, be difficult to the problem of fast fetching for conventional pressure controller.This water pump constant pressure frequency conversion controller, the master board for controlling pump motor work comprising the middle body with feed-water end and waterexit end, the panel being located at middle body side and be located between panel and middle body, the feed-water end place of middle body is provided with safety check, the magnet steel for whether there being flow in body in detecting is provided with in safety check, be provided with in middle body for there is the flow switch responded to and the switching value pressure transducer for hydraulic pressure in body in detecting with magnet steel, master board is connected with switching value pressure transducer with flow switch.The utility model has the advantages such as good stability, simple and practical, energy-saving and cost-reducing, price is lower, effectively improves competitive ability and the market share of product.
Description
Technical field
The utility model belongs to Pressure Control Technology field, relates to a kind of frequency-variable controller, particularly a kind of water pump constant pressure frequency conversion controller.
Background technique
From last century late nineteen eighties, town-dweller-rural-family of China water system utilizes mechanical pressure switches to control water pump always.Because this system also exists shortcomings; water pump Fraquent start can be made; often burn pump motor etc.; general applying electronic automatic controller for water pump is started to late nineteen nineties; because this controller according to the data deactivations such as detected water source state, pipeline-used water amount and pipeline pressure change and stopping water pump, can substitute the legacy system be made up of pressure switch, water-shortage protection device, pressurized tank, safety check etc. completely.The control box of the completely isolated and high leak tightness of live part and pipeline, makes this controller have the incomparable Security of mechanical pressure switches, is used widely.
But, the limitation of electronic water pump automatic controller function, still there is the place of some shortcomings: to the start and stop of water pump directly by Control, because motor is directly start, inrush current equals 4-7 times of rated current, can cause serious impact to electromechanical equipment and power supply grid like this, the big current produced during startup and vibrations all can cause certain infringement to power supply line and water supply line, totally unfavorable to the working life of equipment, pipeline, pump motor; Its function singleness, can only work in setting breakout pressure, cannot change after pressure setting; And relay cut-offs period generation electrical spark, greatly shortens relay life, lacks pump motor failure protection function; Moreover once work, pump motor just runs with rated speed, and supplies water with specified water-outlet quantity, when water consumption reduces or when with water low ebb, ductwork pressure increases, cause the waste of electric energy and water resources, also easily cause pipeline and system failure.
Along with user is to the raising by quality, and corresponding energy-saving and cost-reducing requirement, after entering 21st century, frequency-variable controller starts to enter in household water system, and the special frequency-variable controller product of water pump is commercially ripe so far.Pump variable frequency controller control system is in the market primarily of compositions such as display floater, CPU module, switch power, power model, pressure transmitter, analog signal processing circuits, cost is higher, cause pump variable frequency controller market share not high, be difficult to fast fetching for traditional Water pump pressure controller.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes one and realize the collection of pipeline inner pressure upper and lower mechanically, by the logical operation of CPU, realizes the water pump constant pressure frequency conversion controller of constant pressure water supply function.
The purpose of this utility model realizes by following technical proposal:
This water pump constant pressure frequency conversion controller, comprise the middle body with feed-water end and waterexit end, the panel being located at body side and the master board for controlling pump motor work be located between panel and middle body, the feed-water end place of described middle body is provided with safety check, the magnet steel for whether there being flow in body in detecting is provided with in described safety check, it is characterized in that, be provided with for there is the flow switch responded to and the switching value pressure transducer for hydraulic pressure in body in detecting with above-mentioned magnet steel in described middle body, described master board is connected with switching value pressure transducer with this flow switch.
During work, the signal that master board is fed back according to flow switch and switching value pressure transducer, the output frequency that logical operation adjusts this controller is in real time carried out by the CPU module in master board, thus the running speed of adjustment pump motor, make middle body inside water pressure keep constant, realize constant pressure water supply and save energy and reduce the cost.
When user's stopping water, safety check falls back to original position, the magnet steel of its inside also gets back to original position, induction between magnet steel and flow switch is interrupted, flow switch by signal feed back to master board, the signal that CPU module in master board is fed back according to flow switch, stop exporting, water pump quits work.
When water tap is opened, the pressure step-down in middle body, and when dropping to the release pressure of setting, the signal that master board is fed back according to switching value pressure transducer, makes controller recover to export, water pump is reworked.
During central hydropenia; safety check falls back to original position; magnet steel also gets back to home position; induction between magnet steel and flow switch is interrupted; flow switch is by signal feed back to master board, and the signal that master board is fed back according to flow switch and pressure transducer, makes controller stop exporting; water pump quits work, and controller reenters excessive low water level protection state.
In above-mentioned water pump constant pressure frequency conversion controller, described switching value pressure transducer comprises pressure regulation base, in responding to, the diaphragm of hydraulic pressure in body, its one end be located in pressure regulation base act on regulating block on diaphragm and one end and act on pressure adjusting spring on regulating block, the other end of described pressure adjusting spring acts in pressure regulation base, and described regulating block is provided with sensitive switch one and sensitive switch two.
If pipeline inner pressure is P1(constant voltage setting lower limit during sensitive switch one action), during sensitive switch two action, pipeline inner pressure is P2(constant voltage capping), in pipeline, real-time pressure is PV.Sensitive switch one and sensitive switch two lay respectively at the both sides of regulating block, when in central body, hydraulic pressure increases, upwards there is deformation in diaphragm, drive regulating block moves upward, sensitive switch one and sensitive switch two is driven to move upward, contact on sensitive switch one and sensitive switch two successively and pressure regulation base contacts, now actual pressure PV>P2 in pipeline, the signal that master board is fed back according to sensitive switch one and sensitive switch two, pass through logical operation, reduce output frequency, reduce the output power of motor, when pipeline inner pressure meets P1<PV<P2, the frequency of this water pump constant pressure frequency conversion controller lock motor, make the pressure spot of constant pressure between P1 and P2 in body.
When in central body, hydraulic pressure reduces, the downward reseting movement of diaphragm, drive regulating block moves downward, be arranged on sensitive switch one on regulating block and sensitive switch two moves downward simultaneously, contact on sensitive switch one and sensitive switch two successively disconnects with pressure regulation base, now actual pressure PV<P1 in pipeline, the signal that CPU module in master board is fed back according to sensitive switch one and sensitive switch two, pass through logical operation, increase output frequency, the output power of expanded motor, when pipeline inner pressure meets P1<PV<P2, the frequency of this water pump constant pressure frequency conversion controller lock motor, make the pressure spot of constant pressure between P1 and P2 in body.
In above-mentioned water pump constant pressure frequency conversion controller, form pressure chamber between described diaphragm and middle body, described pressure chamber passed through water channel and was connected with above-mentioned feed-water end.This pressure chamber keeps being communicated with the feed-water end of middle body, and the pressure of its inside and the pressure at feed-water end place are consistent.
In above-mentioned water pump constant pressure frequency conversion controller, be provided with heat-dissipating aluminium plate between described middle body and master board and be located at the heat radiation copper rod that heat-dissipating aluminium plate is arranged in body side, between described heat radiation copper rod and middle body, being provided with O type circle.
In above-mentioned water pump constant pressure frequency conversion controller, be provided with in described safety check and increase the weight of pin, between described safety check and middle body, be provided with seal ring.
In above-mentioned water pump constant pressure frequency conversion controller, the joint of described panel and middle body is provided with seal ring.
Compared with prior art, this water pump constant pressure frequency conversion controller has the following advantages:
By technological innovation, use the switching value pressure transducer of independent research, instead of traditional analog output pressure transmitter, analog signals processing circuit has been lacked in letter, realize the collection of pipeline inner pressure upper and lower mechanically, after the logical operation of CPU, realize constant pressure water supply function, the antijamming capability of product can be improved, the stability of product is better, simple to operate, energy-saving and cost-reducing, overall price obviously reduces, and can improve competitive ability and the market share of product.
Accompanying drawing explanation
Fig. 1 is the sectional view of a kind of preferred embodiment that the utility model provides.
Fig. 2 is the sectional view at A-A place in Fig. 1 of providing of the utility model.
In figure, 1, middle body; 11, feed-water end; 12, waterexit end; 2, panel; 3, master board; 4, safety check; 41, pin is increased the weight of; 5, magnet steel; 6, flow switch; 7, switching value pressure transducer; 71, pressure regulation base; 72, diaphragm; 73, regulating block; 74, pressure adjusting spring; 75, sensitive switch one; 76, sensitive switch two; 77, pressure chamber; 78, water channel is crossed; 81, heat-dissipating aluminium plate; 82, dispel the heat copper rod; 9, seal ring.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Water pump constant pressure frequency conversion controller as shown in Figure 1, comprise the middle body 1 with feed-water end 11 and waterexit end 12, the panel 2 being located at body 1 side and the master board 3 for controlling pump motor work be located between panel 2 and middle body 1, as shown in Figure 2, feed-water end 11 place of middle body 1 is provided with safety check 4, the magnet steel 5 for whether there being flow in body 1 in detecting is provided with in safety check 4, be provided with for there is the flow switch 6 responded to and the switching value pressure transducer 7 for hydraulic pressure in body 1 in detecting with magnet steel 5 in middle body 1, wherein master board 3 is connected with switching value pressure transducer 7 with this flow switch 6.In the present embodiment, as shown in Figure 2, be provided with in safety check 4 and increase the weight of pin 41, between safety check 4 and middle body 1, be provided with seal ring, and as shown in Figure 1, panel 2 is provided with seal ring 9 with the joint of middle body 1.
Concrete, as shown in Figure 1, switching value pressure transducer 7 comprises pressure regulation base 71, act on regulating block 73 on diaphragm 72 and one end for the diaphragm 72 of hydraulic pressure in body 1 in responding to, its one end be located in pressure regulation base 71 acts on pressure adjusting spring 74 on regulating block 73, the other end of pressure adjusting spring 74 acts in pressure regulation base 71, and regulating block 73 is provided with sensitive switch 1 and sensitive switch 2 76.For making the structural design of this controller more reasonable, as shown in Figure 1, be provided with a pressure chamber 77 between diaphragm 72 and middle body 1, pressure chamber 77 passed through water channel 78 and was connected with feed-water end 11.
During work, the signal that master board 3 is fed back according to sensitive switch 1 in flow switch 6, switching value pressure transducer 7 and sensitive switch 2 76, the output frequency that logical operation adjusts this controller is in real time carried out by the CPU module in master board 3, thus the running speed of adjustment pump motor, when pipeline inner pressure meets P1<PV<P2, the frequency of this water pump constant pressure frequency conversion controller lock motor, make the pressure spot of constant pressure between P1 and P2 in body 1, realize constant pressure water supply and save energy and reduce the cost.
When user's stopping water, safety check 4 falls back to original position, the magnet steel 5 of its inside also gets back to original position, induction between magnet steel 5 and flow switch 6 is interrupted, flow switch 6 by signal feed back to master board 3, the signal that CPU module in master board 3 is fed back according to flow switch 6, stop exporting, water pump quits work.
When water tap is opened, the pressure step-down in middle body 1, and when dropping to the release pressure of setting, the signal that master board 3 is fed back according to switching value pressure transducer 7, makes controller recover to export, water pump is reworked.
In central body 1 during lack of water; safety check 4 falls back to original position; magnet steel 5 also gets back to home position; induction between magnet steel 5 and flow switch 6 is interrupted; flow switch 6 is by signal feed back to master board 3, and the signal that master board 3 is fed back according to flow switch 6 and pressure transducer, makes controller stop exporting; water pump quits work, and controller reenters excessive low water level protection state.
The working procedure of switching value pressure transducer 7 is as follows: sensitive switch 1 and sensitive switch 2 76 lay respectively at the both sides of regulating block 73, when in central body 1, hydraulic pressure increases, upwards there is deformation in diaphragm 72, regulating block 73 is driven to move upward, sensitive switch 1 and sensitive switch 2 76 is driven to move upward, sensitive switch 1 successively contacts with pressure regulation base 71 with the contact on sensitive switch 2 76, now actual pressure PV>P2 in pipeline, the signal that master board 3 is fed back according to sensitive switch 1 and sensitive switch 2 76, pass through logical operation, reduce output frequency, reduce the output power of motor, when pipeline inner pressure meets P1<PV<P2, the frequency of this water pump constant pressure frequency conversion controller lock motor, make the pressure spot of constant pressure between P1 and P2 in body 1.In the present embodiment, client as required, can set constant-pressure pressure according to selecting different pressure adjusting springs 74.
When in central body 1, hydraulic pressure reduces, diaphragm 72 is reseting movement downwards, regulating block 73 is driven to move downward, be arranged on sensitive switch 1 on regulating block 73 and sensitive switch 2 76 moves downward simultaneously, contact on sensitive switch 1 and sensitive switch 2 76 successively disconnects with pressure regulation base 71, now actual pressure PV<P1 in pipeline, the signal that CPU module in master board 3 is fed back according to sensitive switch 1 and sensitive switch 2 76, pass through logical operation, increase output frequency, when pipeline inner pressure meets P1<PV<P2, the frequency of this water pump constant pressure frequency conversion controller lock motor, make the pressure spot of constant pressure between P1 and P2 in body 1.
As shown in Figure 1, be provided with heat-dissipating aluminium plate 81 between middle body 1 and master board 3 and be located at the heat radiation copper rod 82 that heat-dissipating aluminium plate 81 is arranged in body 1 side, between heat radiation copper rod 82 and middle body 1, being provided with O type circle.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (6)
1. a water pump constant pressure frequency conversion controller, comprise the middle body (1) with feed-water end (11) and waterexit end (12), the panel (2) being located at body (1) side and the master board (3) for controlling pump motor work be located between panel (2) and middle body (1), feed-water end (11) place of described middle body (1) is provided with safety check (4), the magnet steel (5) for whether there being flow in body (1) in detection is provided with in described safety check (4), it is characterized in that, be provided with for there is the flow switch (6) responded to and the switching value pressure transducer (7) for body (1) interior hydraulic pressure in detecting with above-mentioned magnet steel (5) in described middle body (1), described master board (3) is connected with switching value pressure transducer (7) with this flow switch (6).
2. water pump constant pressure frequency conversion controller according to claim 1, it is characterized in that, described switching value pressure transducer (7) comprises pressure regulation base (71), for the diaphragm (72) of body (1) interior hydraulic pressure in induction, its one end be located in pressure regulation base (71) acts on regulating block (73) on diaphragm (72) and one end and acts on pressure adjusting spring (74) on regulating block (73), the other end of described pressure adjusting spring (74) acts in pressure regulation base (71), described regulating block (73) is provided with sensitive switch one (75) for gathering pipeline inner pressure signal and sensitive switch two (76).
3. water pump constant pressure frequency conversion controller according to claim 2, it is characterized in that, form pressure chamber (77) between described diaphragm (72) and middle body (1), described pressure chamber (77) passed through water channel (78) and was connected with above-mentioned feed-water end (11).
4. the water pump constant pressure frequency conversion controller according to claim 1 or 2 or 3, it is characterized in that, be provided with heat-dissipating aluminium plate (81) between described middle body (1) and master board (3) and be located at the heat radiation copper rod (82) that heat-dissipating aluminium plate (81) is arranged in body (1) side, between described heat radiation copper rod (82) and middle body (1), be provided with O type circle.
5. the water pump constant pressure frequency conversion controller according to claim 1 or 2 or 3, is characterized in that, is provided with and increases the weight of pin (41), be provided with seal ring between described safety check (4) and middle body (1) in described safety check (4).
6. the water pump constant pressure frequency conversion controller according to claim 1 or 2 or 3, is characterized in that, described panel (2) is provided with seal ring (9) with the joint of middle body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274102.8U CN204113605U (en) | 2014-05-27 | 2014-05-27 | Water pump constant pressure frequency conversion controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274102.8U CN204113605U (en) | 2014-05-27 | 2014-05-27 | Water pump constant pressure frequency conversion controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113605U true CN204113605U (en) | 2015-01-21 |
Family
ID=52330921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420274102.8U Withdrawn - After Issue CN204113605U (en) | 2014-05-27 | 2014-05-27 | Water pump constant pressure frequency conversion controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113605U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982409A (en) * | 2014-05-27 | 2014-08-13 | 台州市耀达工贸有限公司 | Constant-pressure variable-frequency controller for water pump |
| CN105370555A (en) * | 2015-11-19 | 2016-03-02 | 宁波李立电器有限公司 | Pressure regulating device for water pump |
| WO2020107969A1 (en) * | 2018-11-28 | 2020-06-04 | 利欧集团浙江泵业有限公司 | Pump |
-
2014
- 2014-05-27 CN CN201420274102.8U patent/CN204113605U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982409A (en) * | 2014-05-27 | 2014-08-13 | 台州市耀达工贸有限公司 | Constant-pressure variable-frequency controller for water pump |
| CN103982409B (en) * | 2014-05-27 | 2016-08-17 | 浙江耀达智能科技股份有限公司 | Water pump constant pressure frequency conversion controller |
| CN105370555A (en) * | 2015-11-19 | 2016-03-02 | 宁波李立电器有限公司 | Pressure regulating device for water pump |
| WO2020107969A1 (en) * | 2018-11-28 | 2020-06-04 | 利欧集团浙江泵业有限公司 | Pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Wenling City, Taizhou City, Zhejiang province 317511 industrial town southeast of loose accumulation Patentee after: TAIZHOU YAODA INDUSTRY & TRADE CO., LTD. Address before: Wenling City, Taizhou City, Zhejiang province 317511 industrial town southeast of loose accumulation Patentee before: Taizhou Yaoda Trade Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150121 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |