CN205260354U - Water pump of area light electrofluid sensor - Google Patents
Water pump of area light electrofluid sensor Download PDFInfo
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- CN205260354U CN205260354U CN201520804798.5U CN201520804798U CN205260354U CN 205260354 U CN205260354 U CN 205260354U CN 201520804798 U CN201520804798 U CN 201520804798U CN 205260354 U CN205260354 U CN 205260354U
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Abstract
The utility model relates to a water pump of area light electrofluid sensor, including pump case, check valve structure, its characterized in that: still including sending optic fibre and receiving optic fibre, the removal part in the check valve structure is arranged in and is sent optic fibre and receive between the optic fibre, removal part in the check valve structure removes to the closed condition, and the removal part in the check valve structure is blocked and is sent optic fibre and receive switching on between the optic fibre to make the receive not ready of receipt optic fibre come from the light that sends the optic fibre transmission, removal part removal to the state of opening in the check valve structure, the removal part in the check valve structure is opened and is sent optic fibre and receive switching on between the optic fibre to it comes from the light that sends the optic fibre transmission to make receipt optic fibre receive. Because of the characteristic of optic fibre transmission light, the smooth diameter of its transmission is very little, removes some distance so the removal in the check valve structure is partial a little and just can be responded to, and sensitivity is fairly high, has just so formed high sensitivity's rivers signal production.
Description
Technical field
The utility model relates to a kind of water pump, relates in particular to a kind of water pump with photoelectric current body sensor.
Background technology
Water pump is the device that current are transported in a kind of rotation by motor, and automatic pump refers to that current are subject to the water of automatically controllingPump. For realizing the automatic control of water pump, generally at the water outlet setting pressure switch of the pump housing, it be arranged on water inlet pipeCheck-valves (check valve) interoperation together at place, plays the effect of automatically stopping, and pressure switch is for perception outlet conduitInterior hydraulic pressure, when hydraulic pressure is higher than setting value in outlet pipe, cuts off pump motor power supply, and motor stops operating, at pipelineInterior hydraulic pressure, lower than when setting value, is connected the power supply of motor. As in weep situation, there are flowing out, pump startup, but because ofCurrent output is little, can make manifold pressure moment become large, and motor is shut down at once, and weep continues to flow out, and makes again pump startup,So circulation causes the frequent starting of pump, then when in water head site lack of water or water pump, impeller is stuck by foreign matter, outlet conduitInside there is no flow at all, can destroy in both cases the mechanical seal of water pump or make motor rotation blockage dry combustion method, can be to motorCause damage.
How solving automatic pump frequent starting, is the important technological problems that existing automatic pump need to solve. For separatingCertainly foregoing problems, its patent No. of the applicant's application is ZL201520003557.0 (notification number is CN204476795U)Chinese utility model patent " water pump of anti-frequent starting " disclosed so a kind of water pump, comprise have intake tunnel andThe pump case of exhalant canal, is provided with the impeller that is driven rotation by motor in pump case; It is characterized in that being also provided with by sense in pump caseAnswer variation in water pressure in pump case and control electric motor starting whether pressure switch; In intake tunnel or exhalant canal, be provided with and can respond toFlow in it and control the valve mechanism of motor start and stop, valve mechanism comprises having the piston seat of plunger shaft and be positioned at workPiston in plug chamber, is provided with to control the switch whether motor is opened on piston seat, piston can pass through intake tunnelOr under the mobilization of the current of exhalant canal along plunger shaft slippage, the slippage by piston in plunger shaft can be opened or closeMake and break is closed. As long as water pump in normal operation, exhalant canal has current to flow out, and piston is trigger switch all the time, allowsMotor, in duty always, can thoroughly solve the frequent starting problem of motor like this, has effectively protected motor.
Aforementioned patent adopt construction of switch be comprise be located at the magnet in piston and be located on piston seat periphery wall in order to controlElectric motor starting processed whether tongue tube, at piston, under reset mode, magnet is not responded to tongue tube, and tongue tube is not controlledMachine operation, at piston, along under the flow direction mobile status of current, magnet is responded to tongue tube, and tongue tube control motor beginsEventually in starting state. At the current water flow switch entrance of flowing through, promote magnet movement, magnet triggers tongue tube action,Tongue tube sends signal, whether controls electric motor starting.
There is following defect in the water flow switch of aforementioned dry-reed: 1, the action of magnet needs certain stroke and time, because ofThis is sensitive not; 2, can not under the environment that has magnetic field, work, because extraneous magnetic field can cause the misoperation of water flow switch;3, need larger initial kinetic energy could promote magnet and move, as this water flow switch is used for to water pump, at water pump weepThe course of work in, water flow switch akinesia; 4, tongue tube is fragile, and water flow switch entirety is positioned at pump case in addition,It is difficult for maintain and replace after damaging; 5, cannot apply in the water environment that has impurity, in the passage of magnet slippage, easily be blocked up by impurityLive, absorption and stuck; 6, electric property insulation is poor, and security cannot ensure. In sum, traditional water flow switch canTo make further improvements. Therefore background patents also can be further improved.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of band photoelectricity fluid to pass for above-mentioned prior art present situationThe water pump of sensor and reasonable in design, this water pump can be under weep state sensed control pump working, work sensitiveSpend highly, not fragile, not affected by external magnetic field, working stability and advantage easy to maintenance.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of water pump with photoelectric current body sensor,Comprise the pump case with intake tunnel and exhalant canal, described intake tunnel or exhalant canal one of them in be provided with energyThe one-way valve structures of opening in flow situation, is characterized in that: also comprise the transmission light that left and right relative spacing arrangesFibre and reception optical fiber, the outer end that sends optical fiber and reception optical fiber all guides to outside pump case, and at fluid contiguous transmission optical fiber outwardPosition is provided with to illuminate the light emitting diode that sends optical fiber, receives optical fiber and can receive the light of transmission optical fiber transmission and will connectReceive that light is sent to photoelectric conversion module to control pump motor work, the movable part in described one-way valve structures is placed in to be sent outSend optical fiber and receive between optical fiber; Movable part in one-way valve structures moves to closes intake tunnel or exhalant canal positionConfiguration state, the movable part blocking-up in described one-way valve structures sends optical fiber and receives the conducting between optical fiber, so that receiveOptical fiber can not receive the light transmitting from sending optical fiber; Movable part in one-way valve structures moves to unlatching intake tunnelOr exhalant canal location status, the movable part in described one-way valve structures is opened and is sent optical fiber and receive the conducting between optical fiber,Can receive so that receive optical fiber the light transmitting from sending optical fiber.
Above-mentioned one-way valve structures comprises the valve seat that has valve port, is located on valve seat and the energy valve rod of slippage up and down, valve rodEnd is connected with the valve block in order to shutoff valve port, is arranged with and makes valve rod keep moving so that valve block blocks valve port becomes on valve rodThe valve block spring of gesture, described valve rod is to be placed in the movable part that sends optical fiber and receive the one-way valve structures between optical fiber.It is a kind of one-way valve structures simple in structure, easy for installation.
The bottom of above-mentioned valve seat is provided with two spaced walls, and described transmission optical fiber is located in a wall, receives optical fiberBe located in another wall, the end of valve rod has baffle portion, and baffle portion is between two walls; Move to valve at valve rodSheet is closed intake tunnel or exhalant canal location status, and the baffle portion on described valve rod sends with blocking-up between two wallsConducting between optical fiber and reception optical fiber; Move to valve block at valve rod and open intake tunnel or exhalant canal location status, instituteThe baffle portion of stating on valve rod is left between two walls to open the conducting of sending between optical fiber and reception optical fiber. Wall is set to lightFibre provides suitable installation position, baffle portion is set in addition and can guarantees effectively optical fiber to be blocked.
The cross section of above-mentioned valve rod is square. Guarantee the only upper and lower slippage of valve rod and do not rotate.
In above-mentioned valve port, be provided with dowel, the middle part of dowel has axis hole, is positioned on the dowel of axis hole both sides and also hasArrange and radially run through along its length the installing hole of valve seat periphery, each installing hole is inner to be all communicated with axis hole, described transmissionOptical fiber is located in the installing hole that is positioned at axis hole one side, receives optical fiber and is located in the installing hole that is positioned at axis hole opposite side, instituteState and on valve rod, have bar hole; Move to valve block at valve rod and close intake tunnel or exhalant canal location status, described valve rodIn axis hole, send optical fiber and receive the conducting between optical fiber with blocking-up; Valve rod move to valve block open intake tunnel orExhalant canal location status, the bar hole on described valve rod is positioned at axis hole and passes to mutually to open with installing hole and send optical fiber and connectReceive the conducting between optical fiber. It is optical fiber mounting means of another kind of version and the mode that realizes optical fiber conducting or blocking-up.
Above-mentioned one-way valve structures comprises the piston seat with plunger shaft and the piston that is positioned at plunger shaft, and plunger shaft is communicated with pump caseInner chamber and intake tunnel or exhalant canal so that water flow energy by plunger shaft, the reset force of piston is by the deadweight of piston or establishThe piston spring of putting in plunger shaft provides, and the reset mode of piston is for closing intake tunnel or exhalant canal state, described inPiston is to be placed in the movable part that sends optical fiber and receive the one-way valve structures between optical fiber. It is another kind of simple in structureAnd one-way valve structures easy for installation.
Above-mentioned piston seat is arranged in exhalant canal, and the top and bottom of plunger shaft are respectively equipped with installation muscle and lower installation muscle,The top and bottom of piston are respectively equipped with gib block and lower gib block, and upper gib block activity is located on installation muscle, underGib block activity is located on lower installation muscle, and described piston reset power is provided by piston deadweight.
Above-mentioned piston seat is arranged in intake tunnel, and described piston reset power is provided by piston spring.
Compared with prior art, the utility model has the advantage of:
1, whether the mobile of the movable part in one-way valve structures determines to block sending optical fiber and receiving between optical fiber, finalDetermine to receive optical fiber and whether can receive the light transmitting from there is optical fiber, whether control by sending optical fiber and receiving optical fiber conductingWhether machine operation processed, and movable part in one-way valve structures can move under fluid effect, because optical fiber transmits lightCharacteristic, the light diameter of its transmission is very little, thus the movable part in one-way valve structures as long as mobile a little some distance justCan be sensed, sensitivity is quite high, has so just formed highly sensitive water-flow signal and has produced.
2, optical fiber surface is smooth smooth and contact-making surface is minimum, and chemical characteristic is stable, and surface can not produce chemical reaction,In flowing liquid, optical fiber luminescent end is the most easily washed away by liquid, is difficult for producing incrustation scale, has ensured that light transmission is good.
3, compared with traditional magnet-type water flow sensing unit, it is not affected by external magnetic field, working stability, and not rapid wear of optical fiberBad, its fragile parts are light emitting diode, and the maintain and replace of light emitting diode is quite convenient.
4, traditional water flow sensing unit under the interference at extraneous magnetic or in the water of high-temperature long-term work easily demagnetization andAnd the material of magnetic easily causes the impurity absorption in water water flow switch to lose efficacy.
5, the water flow sensing unit such as tongue tube, because it has mechanical hysteresis effect to exist, reaction does not have photoelectric sensor rapid.
6, be drawn out to from water by optical fiber outside pump case, do not have the problems such as the insulation of any electric property is poor, greatly improveSecurity, fragile parts are light emitting diode in addition, and light emitting diode is positioned at the controller outside pump case, maintenanceIt is quite convenient to change.
Brief description of the drawings
Fig. 1 is the structural representation of first embodiment of the utility model;
Fig. 2 is the schematic diagram of the utility model photoelectric current body sensor;
Fig. 3 is the perspective view of check valve in first embodiment of the utility model;
Fig. 4 is the three-dimensional exploded view of check valve in first embodiment of the utility model;
Fig. 5 is the structural representation of second embodiment of the utility model;
Fig. 6 is the perspective view of check valve in second embodiment of the utility model;
Fig. 7 is the three-dimensional exploded view of check valve in second embodiment of the utility model;
Fig. 8 is the schematic diagram of the 3rd embodiment of the utility model;
Fig. 9 is the schematic diagram of the 4th embodiment of the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As shown in Fig. 1～4, be first embodiment of the present utility model.
With a water pump for photoelectric current body sensor, comprise the pump case 1 with intake tunnel 11 and exhalant canal 12, water inletPassage 11 or exhalant canal 12 are provided with the one-way valve structures that can open in flow situation in one of them.
Also comprise the transmission optical fiber 2 of left and right relative spacing setting and receive optical fiber 3, outside transmission optical fiber 2 and reception optical fiber 3End all guides to outside pump case, and is provided with to illuminate the luminous of transmission optical fiber 2 in contiguous optical fiber 2 positions that send outward at fluidDiode 4, receives optical fiber 3 and can receive the light that transmits of transmission optical fiber 2 also will receive light is sent to photoelectric conversion module 5To control pump motor work, the movable part in one-way valve structures is placed in and sends optical fiber 2 and receive between optical fiber 3; ?Movable part in one-way valve structures moves to closes intake tunnel 11 or exhalant canal 12 location status, one-way valve structuresIn movable part blocking-up send optical fiber 2 and receive the conducting between optical fiber 3 so that receive optical fiber 2 can not receive fromSend the light that optical fiber 3 transmits, at this moment pump motor is not worked; Movable part in one-way valve structures move to open intoAquaporin 11 or exhalant canal 12 location status, the movable part in one-way valve structures is opened and is sent optical fiber 2 and receive optical fiber 3Between conducting can receive from the light that transmits of transmission optical fiber 2, at this moment pump motor work so that receive optical fiber 3.
One-way valve structures in the present embodiment comprises the valve seat 6 that has valve port 61, is located on valve seat 6 and slippage up and downValve rod 7, the end of valve rod 7 is connected with the valve block 71 in order to shutoff valve port 61, is arranged with valve rod 7 is protected on valve rod 7Hold and move so that valve block 71 blocks the valve block spring 72 of valve port 61 trend, valve rod 7 sends optical fiber 2 and receives for being placed inMovable part in one-way valve structures between optical fiber 3.
Concrete, the bottom of valve seat 6 is provided with two spaced walls 62, sends optical fiber 2 and is located in one of them wall62, receive optical fiber 3 and be located in another wall 62, the end of valve rod 7 has baffle portion 73, and this baffle portion 73 is positioned atBetween two walls 62; Move to valve block 71 at valve rod 7 and close intake tunnel 11 or exhalant canal 12 location status, valveBaffle portion 73 on bar is sending optical fiber 2 and is receiving the conducting between optical fiber 3 with blocking-up between two walls 62; At valveBar 7 moves to valve block 71 and opens intake tunnel 11 or exhalant canal 12 location status, and the baffle portion 73 on valve rod is leftBetween two walls 62, send optical fiber 2 and receive the conducting between optical fiber 3 to open. The cross section of valve rod 7 is square.
In the time having current to pass through, the elastic force that current driving valve block 71 overcomes valve block spring 72 with valve rod 7 is towards opening squareTo movement, the baffle portion 73 on valve rod is left all the time between two walls 62 and is sent optical fiber 2 and receive between optical fiber 3 to openConducting, receive optical fiber 3 and can receive from sending the light that transmits of optical fiber 2, make pump motor keep working all the time shapeState. In the time not having current to pass through, valve block 71 with valve rod 7 under the elastic force effect of valve block spring 72 towards closing directionMobile, the baffle portion 73 on valve rod is sending optical fiber 2 and is receiving leading between optical fiber 3 with blocking-up between two walls 62Logical, can not receive so that receive optical fiber 2 light transmitting from sending optical fiber 3, at this moment pump motor is not worked.
As shown in Fig. 5～7, be second embodiment of the present utility model.
The difference of the present embodiment and first embodiment is: in valve port 61, be provided with dowel 63, in dowel 63Portion has axis hole 631, is positioned at also to have on the dowel 63 of axis hole 631 both sides arrange along its length and radially run through valveThe installing hole 632 of seat 6 peripheries, each installing hole 632 is inner to be all communicated with axis hole 631, and described transmission optical fiber 2 wears in placeIn the installing hole 632 of axis hole 631 1 sides, receive optical fiber 3 and be located in the installing hole 632 that is positioned at axis hole 631 opposite sidesIn, on valve rod 7, have bar hole 74; Move to valve block at valve rod 7 and close intake tunnel 11 or exhalant canal 12 positionsState, valve rod 7 sends optical fiber 2 and receives the conducting between optical fiber 3 with blocking-up in axis hole 631; Move at valve rodOpen intake tunnel 11 or exhalant canal 12 location status to valve block, the bar hole 74 on valve rod 7 is positioned at axis hole 631And pass to mutually and open the conducting of sending between optical fiber 2 and reception optical fiber 3 with installing hole 632. The cross section of valve rod 7 is square.
As shown in Figure 8, be the 3rd embodiment of the present utility model.
The difference of the present embodiment and first embodiment is that one-way valve structures is different: one-way valve structures comprises having pistonThe piston seat 8 in chamber 81 and be positioned at the piston 9 of plunger shaft 81, described plunger shaft 81 is communicated with pump case 1 inner chamber and water inlet is logicalRoad 11 or exhalant canal 12 so that water flow energy by plunger shaft 81, the reset force of piston 9 is by the deadweight of piston 9 or establishThe piston spring 91 of putting in plunger shaft 81 provides, and the reset mode of piston 9 is for closing intake tunnel 11 or exhalant canal12 states, piston 9 is for being placed in the movable part that sends optical fiber 2 and receive the one-way valve structures between optical fiber 3.
Piston seat 8 is arranged in exhalant canal 12, and the top and bottom of plunger shaft 81 are respectively equipped with installation muscle 811 HesLower installation muscle 812, the top and bottom of piston 9 are respectively equipped with gib block 92 and lower gib block 93, upper gib block 92Activity is located on installation muscle 811, and lower gib block 93 activities are located on lower installation muscle 812, piston 9 reset forces byPiston 9 deadweights provide.
As shown in Figure 9, be the 4th embodiment of the present utility model.
The difference of the present embodiment and the 3rd embodiment is: piston seat 8 is arranged in intake tunnel 11, and piston 9 is multipleVirial is provided by piston spring 91.
Although more than described the preferred embodiments of the present invention in detail, should be expressly understood that, for this areaTechnical staff, the present invention can have various modifications and variations. All appointing of doing within the spirit and principles in the present inventionWhat revises, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. the water pump with photoelectric current body sensor, comprises the pump case (1) of have intake tunnel (11) and exhalant canal (12),Described intake tunnel (11) or exhalant canal (12) one of them in be provided with can open unidirectional in flow situationValve arrangement, is characterized in that: also comprise the transmission optical fiber (2) that left and right relative spacing arranges and receive optical fiber (3), sending optical fiber(2) and the outer end that receives optical fiber (3) all guide to outside pump case, and be provided with in order to shine contiguous optical fiber (2) position that sends outward at fluidThe light emitting diode (4) of bright transmission optical fiber (2), receives optical fiber (3) and can receive the light of transmission optical fiber (2) transmission and will receive lightBe sent to photoelectric conversion module (5) to control pump motor work, the movable part in described one-way valve structures is placed in transmission lightBetween fine (2) and reception optical fiber (3); Movable part in one-way valve structures moves to that to close intake tunnel (11) or water outlet logicalRoad (12) location status, the movable part blocking-up in described one-way valve structures sends optical fiber (2) and receives leading between optical fiber (3)Logical, can not receive so that receive optical fiber (2) light transmitting from sending optical fiber (3); Movable part in one-way valve structures movesMove to opening intake tunnel (11) or exhalant canal (12) location status, the movable part in described one-way valve structures is opened and is sent lightConducting between fine (2) and reception optical fiber (3), can receive so that receive optical fiber (3) light transmitting from sending optical fiber (2).
2. the water pump with photoelectric current body sensor according to claim 1, is characterized in that: described one-way valve structuresComprise the valve seat (6) that has valve port (61), be located in the valve rod (7) of the upper and lower slippage of the upper also energy of valve seat (6), the end of valve rod (7) connectsBe connected to the valve block (71) in order to shutoff valve port (61), on valve rod (7), be arranged with and make valve rod (7) keep moving so that valve block (71) shutoffLive the valve block spring (72) of valve port (61) trend, described valve rod (7) sends optical fiber (2) and receives the list between optical fiber (3) for being placed inTo the movable part in valve arrangement.
3. the water pump with photoelectric current body sensor according to claim 2, is characterized in that: described valve seat (6)Bottom is provided with two spaced walls (62), and described transmission optical fiber (2) is located in a wall (62), receives optical fiber (3) and wearsBe located at another wall (62), the end of valve rod (7) has baffle portion (73), and this baffle portion (73) is positioned between two walls (62);Move to valve block (71) at valve rod (7) and close intake tunnel (11) or exhalant canal (12) location status, the baffle plate on described valve rodPortion (73) is positioned between two walls (62) and sends optical fiber (2) and receive the conducting between optical fiber (3) with blocking-up; Mobile at valve rod (7)Open intake tunnel (11) or exhalant canal (12) location status to valve block (71), the baffle portion (73) on described valve rod is left two and is stoodBetween wall (62), send optical fiber (2) and receive the conducting between optical fiber (3) to open.
4. the water pump with photoelectric current body sensor according to claim 2, is characterized in that: described valve rod (7)Cross section is square.
5. the water pump with photoelectric current body sensor according to claim 2, is characterized in that: in described valve port (61)Be provided with dowel (63), the middle part of dowel (63) has axis hole (631), and the dowel (63) that is positioned at axis hole (631) both sides is also upperHave the installing hole (632) that arranges and radially run through along its length valve seat (6) periphery, the inner equal and axis hole of each installing hole (632)(631) be communicated with, described transmission optical fiber (2) is located in the installing hole (632) that is positioned at axis hole (631) one sides, receives optical fiber (3) and wearsBe located at the installing hole (632) that is positioned at axis hole (631) opposite side, on described valve rod (7), have bar hole (74); In valve rod (7)Move to valve block and close intake tunnel (11) or exhalant canal (12) location status, described valve rod (7) is positioned at axis hole (631) with resistanceThe disconnected conducting sending between optical fiber (2) and reception optical fiber (3); Move at valve rod that valve block is opened intake tunnel (11) or water outlet is logicalRoad (12) location status, the bar hole (74) on described valve rod (7) is positioned at axis hole (631) and passes to mutually and beat with installing hole (632)Open and send optical fiber (2) and receive the conducting between optical fiber (3).
6. the water pump with photoelectric current body sensor according to claim 5, is characterized in that: described valve rod (7)Cross section is square.
7. the water pump with photoelectric current body sensor according to claim 1, is characterized in that: described one-way valve structuresComprise there is plunger shaft (81) piston seat (8) and be positioned at the piston (9) of plunger shaft (81), described plunger shaft (81) is communicated with pump case(1) inner chamber and intake tunnel (11) or exhalant canal (12) are so that water flow energy passes through plunger shaft (81), and the reset force of piston (9) is by livingThe deadweight of plug (9) or the piston spring (91) being arranged in plunger shaft (81) provide, the reset mode of piston (9) for close intoAquaporin (11) or exhalant canal (12) state, described piston (9) sends optical fiber (2) and receives the list between optical fiber (3) for being placed inTo the movable part in valve arrangement.
8. the water pump with photoelectric current body sensor according to claim 7, is characterized in that: described piston seat (8)Be arranged in exhalant canal (12), the top and bottom of plunger shaft (81) are respectively equipped with installation muscle (811) and lower installation muscle(812), the top and bottom of piston (9) are respectively equipped with gib block (92) and lower gib block (93), and upper gib block (92) activity is wornBe located at installation muscle (811) upper, it is upper that lower gib block (93) activity is located in lower installation muscle (812), described piston (9) reset force byPiston (9) deadweight provides.
9. the water pump with photoelectric current body sensor according to claim 7, is characterized in that: described piston seat (8)Be arranged in intake tunnel (11), described piston (9) reset force is provided by piston spring (91).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520804798.5U CN205260354U (en) | 2015-10-16 | 2015-10-16 | Water pump of area light electrofluid sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520804798.5U CN205260354U (en) | 2015-10-16 | 2015-10-16 | Water pump of area light electrofluid sensor |
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| CN205260354U true CN205260354U (en) | 2016-05-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090416B (en) * | 2016-07-21 | 2018-05-22 | 浙江新控泵业有限公司 | The photoelectricity fluid sensor of scale-deposit-preventing and the water pump with the sensor |
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2015
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090416B (en) * | 2016-07-21 | 2018-05-22 | 浙江新控泵业有限公司 | The photoelectricity fluid sensor of scale-deposit-preventing and the water pump with the sensor |
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