CN219196153U - Constant-pressure variable-frequency water supply system for pure water in middle section of acidic oxidation potential water generator - Google Patents
Constant-pressure variable-frequency water supply system for pure water in middle section of acidic oxidation potential water generator Download PDFInfo
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- CN219196153U CN219196153U CN202222989689.8U CN202222989689U CN219196153U CN 219196153 U CN219196153 U CN 219196153U CN 202222989689 U CN202222989689 U CN 202222989689U CN 219196153 U CN219196153 U CN 219196153U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 328
- 230000002378 acidificating effect Effects 0.000 title claims abstract description 24
- 230000003647 oxidation Effects 0.000 title claims abstract description 20
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 20
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 15
- 230000001590 oxidative effect Effects 0.000 claims description 28
- 230000000149 penetrating effect Effects 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 6
- 230000030279 gene silencing Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model discloses a pure water constant-pressure variable-frequency water supply system for a middle section of an acidic oxidation potential water generator, which comprises an electric cabinet, a diaphragm air pressure tank, a water pump motor, a water inlet pipe, a water outlet pipe, a pressure stabilizing pipe, a pressure switch and a pressure transmitter; the electric cabinet is respectively and electrically connected with the water pump motor, the pressure switch and the pressure transmitter, the diaphragm air pressure tank, the pressure switch and the pressure transmitter are all connected to the pressure stabilizing tube, the pressure stabilizing tube is connected to the water outlet tube, the water outlet tube is connected to the water outlet of the water pump, the water inlet tube is connected to the water inlet of the water pump, and the water pump motor is connected to the pump shaft of the water pump. The utility model has the advantages that: the device can keep stable water supply pressure and flow of the middle-section pure water of the acidic oxidation potential water generator, constant current and constant pressure, is not influenced by unstable factors of a front pure water treatment system, and ensures that the acidic oxidation potential water generator is stable in working state and generates water all-weather for a long time.
Description
Technical Field
The utility model relates to the technical field of acidic electrolyzed oxidizing water generation equipment, in particular to middle-section pure water constant-pressure variable-frequency water supply equipment of an acidic electrolyzed oxidizing water generator.
Background
The middle-stage pure water supply system of the existing electrolyzed oxidizing water generator is usually a normal pressure water supply system, is easily influenced by an unstable factor of a preposed pure water treatment system, causes unstable work of the electrolyzed oxidizing water generator, and cannot ensure long-term all-weather normal water production of electrolyzed oxidizing water.
Disclosure of Invention
Aiming at the problems in the background technology, the utility model aims to provide the constant-pressure variable-frequency water supply equipment for the pure water in the middle section of the acidic electrolyzed oxidizing water generator.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the constant-pressure variable-frequency water supply system for the pure water in the middle section of the acidic electrolyzed oxidizing water generator comprises an electric cabinet, a diaphragm air pressure tank, a water pump motor, a water inlet pipe, a water outlet pipe, a pressure stabilizing pipe, a pressure switch and a pressure transmitter; the electric cabinet is respectively and electrically connected with the water pump motor, the pressure switch and the pressure transmitter, the diaphragm air pressure tank, the pressure switch and the pressure transmitter are all connected to the pressure stabilizing tube, the pressure stabilizing tube is connected to the water outlet tube, the water outlet tube is connected to the water outlet of the water pump, the water inlet tube is connected to the water inlet of the water pump, and the water pump motor is connected to the pump shaft of the water pump.
The electric cabinet is arranged at the top of the frame, the diaphragm air pressure tank is arranged on the upper part of the frame in an inverted penetrating manner, the water inlet pipe is transversely arranged on the lower part of the frame, one end of the water inlet pipe is arranged in the frame in a penetrating manner and communicated with the water inlet of the water pump, the other end of the water inlet pipe is arranged outside the frame in a penetrating manner and is connected with a water inlet flange, and the water inlet flange is used for being communicated with a pure water input pipeline in the middle section of the acidic oxidation potential water generator; the water outlet pipe is transversely arranged at the upper part of the frame, one end of the water outlet pipe is penetrated inside the frame and communicated with the water outlet of the water pump, the other end of the water outlet pipe is penetrated outside the frame and connected with a water outlet flange, and the water outlet flange is used for being communicated with a pure water output pipeline at the middle section of the acidic oxidation potential water generator.
Further, two diaphragm air pressure tanks are arranged, and the two diaphragm air pressure tanks are arranged on the upper portion of the frame in parallel in an inverted penetrating mode and are communicated with the pressure stabilizing tube.
Further, two water pumps and two water pump motors are arranged side by side, and the two water pumps and the two water pump motors are arranged on a supporting table at the lower part of the frame; and each water pump is provided with a water pump motor, each water pump motor is electrically connected with the electric cabinet, the water inlet of each water pump is communicated with the water inlet pipe, and the water outlet is communicated with the water outlet pipe.
Furthermore, a stop valve is further arranged on the pipeline of the water inlet of each water pump communicated with the water inlet pipe, and a check valve is further arranged on the pipeline of the water outlet of each water pump communicated with the water outlet pipe.
Further, a vacuum gauge is arranged on the water inlet pipe.
Further, a pressure gauge and a discharge valve are also arranged on the pressure stabilizing tube.
Further, a constant-voltage variable-frequency control circuit for controlling the operation of the water pump motor, the pressure switch and the pressure transmitter is arranged on the electric cabinet, and the constant-voltage variable-frequency control circuit is electrically connected with the water pump motor, the pressure switch and the pressure transmitter respectively.
Further, the constant-voltage variable-frequency control circuit comprises a constant-voltage variable-frequency main circuit and a constant-voltage variable-frequency control circuit;
the constant-voltage variable-frequency main loop comprises a low-voltage circuit breaker QF, an alternating-current contactor KM1 main contact, an alternating-current contactor KM2 main contact, an alternating-current contactor KM3 main contact, an alternating-current contactor KM4 main contact, an alternating-current contactor KM5 main contact, a frequency converter, a thermal relay FR1 and a thermal relay FR2;
one end of the low-voltage breaker QF is connected with three live wires of a constant-voltage variable-frequency main loop, the other end of the low-voltage breaker QF is connected with an alternating-current contactor KM5 main contact, the other end of the alternating-current contactor KM5 main contact is connected with the input end of a frequency converter, the output end of the frequency converter is connected with an alternating-current contactor KM3 main contact and an alternating-current contactor KM4 main contact, the control end of the frequency converter is connected with a pressure transmitter, the other end of the alternating-current contactor KM3 main contact is connected with a thermal relay FR1, the other end of the alternating-current contactor KM4 main contact is connected with a thermal relay FR2, the other end of the thermal relay FR1 is connected with three binding posts of one water pump motor, the other end of the thermal relay FR2 is connected with three fire wires between the thermal relay FR1 and the alternating-current contactor KM3 main contact, and the other end of the alternating-current contactor KM2 main contact is connected with three fire wires between the low-voltage breaker QF1 and the alternating-current contactor KM5 main contact, and the other end of the alternating-current contactor KM2 main contact is connected with the three fire wires between the thermal relay FR2 and the alternating-current contactor KM4 main contact;
wherein, the constant-voltage variable-frequency control loop comprises a fuse FU1, a fuse FU2, a fuse FU3, a fuse FU4, a control transformer TC1, a 1# power frequency indicator lamp HL1, a 2# power frequency indicator lamp HL2, a 1# variable-frequency indicator lamp HL3, a 2# variable-frequency indicator lamp HL4, a power supply indicator lamp HL5, a 1# overload indicator lamp HL6, a 2# overload indicator lamp HL7, a fault indicator lamp HL8, an alternating-current contactor KM1 coil, an alternating-current contactor KM2 coil, an alternating-current contactor KM3 coil, an alternating-current contactor KM4 coil, an alternating-current contactor KM5 coil, a micro-relay KM6 coil, a micro-relay KM7 coil, an alternating-current contactor KM1 normally-closed contact, an alternating-current contactor KM1 normally-open contact, an alternating-current contactor KM2 normally-closed contact, an alternating-current contactor KM3 normally-closed contact, an alternating-current contactor KM4 normally-open contact, a micro-relay KM6 normally-open contact, a micro-relay 7 normally-closed contact, an alternating-current relay FR1 normally-closed relay FR1, an FR2 normally-closed switch 2, an alternating-current switch 2 switch 1, an alternating-current switch 2 and a single-phase switch, a heat pump, a heat-current switch, a heat-pump, a single-switch, a heat-switch, a single-switch, a switch, and a heat-switch, and a control button;
the fuse FU1 and the fuse FU2 are respectively arranged on two live wires connected with the primary end of the control transformer TC1, and the fuse FU3 and the fuse FU4 are respectively arranged on a zero wire and a live wire of a constant-voltage variable-frequency control loop connected with the secondary end of the control transformer TC 1;
two live wires connected with the primary end of the control transformer TC1 are connected to two live wires in the constant-voltage variable-frequency main loop, and a zero wire and a live wire of the constant-voltage variable-frequency control loop connected with the secondary end of the control transformer TC1 are respectively connected to a zero wire end and a live wire end of the programmable controller;
one end of the power supply indicator lamp HL5 is connected to the live wire between the fuse FU4 and the live wire end of the programmable controller, and the other end of the power supply indicator lamp is connected to the zero line between the fuse FU3 and the zero line end of the programmable controller;
one end of a fault indicator lamp HL8 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, the other end of the fault indicator lamp is connected with a normally open contact of an alternating current contactor KM6, and the other end of the normally open contact of the alternating current contactor KM6 is connected to a zero line between a fuse FU3 and a zero line end of the programmable controller;
one end of a coil of the micro relay KM7 is connected to a live wire between the fuse FU4 and a live wire end of the programmable controller, the other end of the coil is respectively connected with a start button SB1 and a normally open contact of the micro relay KM7, the other ends of the start button SB1 and the normally open contact of the micro relay KM7 are respectively connected with a stop button SB2, and the other end of the stop button SB2 is connected to a zero line between the fuse FU3 and a zero line end of the programmable controller;
one end of the cooling fan is connected to the live wire between the fuse FU4 and the live wire end of the programmable controller, the other end of the cooling fan is connected to the normally open contact of the micro relay KM7, and the other end of the normally open contact of the micro relay KM7 is also connected with a zero line between the fuse FU3 and the zero line end of the programmable controller;
one end of a normally closed contact of the thermal relay FR1 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, the other end of the normally closed contact is respectively connected with an alternating current contactor KM1 coil and an alternating current contactor KM3 coil, the other end of the alternating current contactor KM1 coil is connected with a normally closed contact of the alternating current contactor KM3, the other end of the normally closed contact of the alternating current contactor KM3 is connected with an output end Q0.0 of the programmable controller, the other end of the coil of the alternating current contactor KM3 is sequentially connected with a normally closed contact of the alternating current contactor KM1 and a normally closed contact of the alternating current contactor KM4, and the other end of the normally closed contact of the alternating current contactor KM4 is connected with an output end Q0.2 of the programmable controller;
one end of a thermal relay FR2 normally-closed contact is connected to a live wire between a fuse FU4 and a live wire end of a programmable controller, the other end of the thermal relay FR2 normally-closed contact is respectively connected with an alternating-current contactor KM2 coil and an alternating-current contactor KM4 coil, the other end of the alternating-current contactor KM2 coil is connected with an alternating-current contactor KM4 normally-closed contact, the other end of the alternating-current contactor KM4 normally-closed contact is connected with an output end Q0.1 of the programmable controller, the other end of the alternating-current contactor KM4 coil is sequentially connected with an alternating-current contactor KM2 normally-closed contact and an alternating-current contactor KM3 normally-closed contact, and the other end of the alternating-current contactor KM3 normally-closed contact is connected with an output end Q0.3 of the programmable controller;
one end of a coil of the alternating current contactor KM5 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, and the other end of the coil is connected to an output end Q0.4 of the programmable controller;
one end of a 1# power frequency indicator lamp HL1 is connected to a live wire between a fuse FU4 and a live wire end of a programmable controller, the other end of the 1# power frequency indicator lamp is connected with a normally open contact of an alternating current contactor KM1, and the other end of the normally open contact of the alternating current contactor KM1 is connected to a zero line between a fuse FU3 and a zero line end of the programmable controller;
one end of a 2# power frequency indicator lamp HL2 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, the other end of the 2# power frequency indicator lamp is connected with a normally open contact of an alternating current contactor KM2, and the other end of the normally open contact of the alternating current contactor KM2 is connected to a zero line between a fuse FU3 and a zero line end of the programmable controller;
one end of a 1# variable frequency indicator lamp HL3 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, the other end of the 1# variable frequency indicator lamp is connected with a normally open contact of an alternating current contactor KM3, and the other end of the normally open contact of the alternating current contactor KM3 is connected to a zero line between the fuse FU3 and a zero line end of the programmable controller;
one end of a No. 2 variable frequency indicator lamp HL4 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, the other end of the variable frequency indicator lamp is connected with a normally open contact of an alternating current contactor KM4, and the other end of the normally open contact of the alternating current contactor KM4 is connected to a zero line between a fuse FU3 and a zero line end of the programmable controller;
one end of the No. 1 overload indicator lamp HL6 is connected to the live wire between the fuse FU4 and the live wire end of the programmable controller, and the other end of the No. 1 overload indicator lamp is connected with the output end Q0.5 of the programmable controller;
one end of the No. 2 overload indicator lamp HL7 is connected to the live wire between the fuse FU4 and the live wire end of the programmable controller, and the other end of the No. 2 overload indicator lamp is connected with the output end Q0.6 of the programmable controller;
one end of a coil of the micro relay KM6 is connected to a live wire between the fuse FU4 and the live wire end of the programmable controller, and the other end of the coil is connected with an output end Q0.7 of the programmable controller;
one end of a normally open contact of the micro relay KM7 is also connected with the fuse FU3, and the other end is also connected with a zero line end of the programmable controller;
the input end of the programmable controller is respectively connected with a silencing button SB3, a single/double pump change-over switch SA1, a 1#/2# water pump motor change-over switch SA2, a variable/power frequency change-over switch SA3, a thermal relay FR1 normally open contact, a thermal relay FR2 normally open contact and a pressure switch.
Compared with the prior art, the utility model has the advantages that: the variable frequency pump technology and the diaphragm air pressure tank are combined in double, so that the water supply pressure and flow of the middle-section pure water of the acid oxidation potential water generator can be kept stable, the constant flow and the constant pressure of the acid oxidation potential water generator are realized, the acid oxidation potential water generator is not influenced by unstable factors of a front pure water treatment system, the working state of the acid oxidation potential water generator is stable, and long-term all-weather water production can be realized. When the fluctuation of the water consumption of the acidic oxidation potential water generating equipment is relatively large, the variable frequency technology can be utilized to smoothly increase and decrease the flow of the water pump, namely when the water consumption of the acidic oxidation potential water generating equipment is large, the variable frequency technology can be utilized to increase the discharge capacity of the water pump; when the water consumption of the acidic oxidation potential water generation equipment is small, the discharge capacity of the water pump can be reduced through a frequency conversion technology; when the water consumption of the electrolyzed oxidizing water generating device is not changed, the pressure and the flow can be finely adjusted by utilizing the diaphragm air pressure tank.
Drawings
FIG. 1 is a front view of an embodiment of a constant pressure variable frequency water supply system for pure water in the middle section of an electrolyzed oxidizing water generator according to the present utility model;
FIG. 2 is a left side view of an embodiment of the constant pressure variable frequency water supply system for the middle-stage pure water of the electrolyzed oxidizing water generator of the present utility model;
FIG. 3 is a schematic diagram of an exemplary embodiment of a constant-pressure variable-frequency water supply system for the middle-stage pure water of the electrolyzed oxidizing water generator of the present utility model;
FIG. 4 is a schematic electrical wiring diagram of an embodiment of a constant-pressure variable-frequency water supply system for the middle-stage pure water of the electrolyzed oxidizing water generator of the present utility model;
FIG. 5 is a schematic diagram of a primary circuit of an embodiment of a constant-pressure variable-frequency water supply system for pure water in the middle section of an electrolyzed oxidizing water generator according to the present utility model;
FIG. 6 is a schematic diagram of a control loop of an embodiment of a constant-pressure variable-frequency water supply system for the middle-stage pure water of the electrolyzed oxidizing water generator of the present utility model;
reference numerals illustrate: 1. a frame; 2. an electric control box; 3. a diaphragm air pressure tank; 4. a water pump; 5. a water pump motor; 6. a water inlet pipe; 7. a water outlet pipe; 8. a voltage stabilizing tube; 9. a pressure switch; 10. a pressure transmitter; 11. a pressure gauge; 12. a drain valve; 13. a stop valve; 14. a check valve; 15. a vacuum gauge; 16. a water inlet flange; 17. and a water outlet flange.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present utility model easy to understand, the following further describes how the present utility model is implemented with reference to the accompanying drawings and the detailed description.
Referring to fig. 3, the utility model provides a constant-pressure variable-frequency water supply system for pure water in the middle section of an acidic oxidation potential water generator, which comprises an electric cabinet 2, a diaphragm air pressure tank 3, a water pump 4, a water pump motor 5, a water inlet pipe 6, a water outlet pipe 7, a voltage stabilizing pipe 8, a pressure switch 9 and a pressure transmitter 10; wherein, electric cabinet 2 is connected with water pump motor 5, pressure switch 9 and pressure transmitter 10 electricity respectively, and diaphragm pneumatic tank 3, pressure switch 9 and pressure transmitter 10 all are connected on stabilizator 8, and stabilizator 8 is connected on outlet pipe 7, and outlet pipe 7 is connected on the delivery port of water pump 4, and inlet tube 6 is connected on the water inlet of water pump 4, and water pump motor 5 is connected on the pump shaft of water pump 4.
As an embodiment of the constant-pressure variable-frequency water supply system for the pure water in the middle section of the acidic electrolyzed oxidizing water generator, the utility model is characterized in that: referring to fig. 1 and 2, the constant-pressure variable-frequency water supply system for the middle-stage pure water of the electrolyzed oxidizing water generator further comprises a frame 1, and the frame 1 is used for supporting the constant-pressure variable-frequency water supply system for the middle-stage pure water of the electrolyzed oxidizing water generator.
Specifically, in this embodiment, the electric cabinet 2 is disposed at the top of the frame 1, the diaphragm air pressure tank 3 is disposed upside down on the upper portion of the frame 1, the water inlet pipe 6 is disposed horizontally on the lower portion of the frame 1, one end of the water inlet pipe is disposed inside the frame 1 in a penetrating manner and is communicated with the water inlet of the water pump 4, the other end of the water inlet pipe is disposed outside the frame 1 in a penetrating manner and is connected with the water inlet flange 16, and the water inlet flange 16 is used for being communicated with the pure water input pipeline in the middle section of the acidic oxidation potential water generator; the water outlet pipe 7 is transversely arranged at the upper part of the frame 1, one end of the water outlet pipe is penetrated in the frame 1 and communicated with the water outlet of the water pump 4, the other end of the water outlet pipe is penetrated outside the frame 1 and connected with the water outlet flange 17, and the water outlet flange 17 is used for being communicated with a pure water output pipeline at the middle section of the acidic oxidation potential water generator.
More specifically, in the present embodiment, there are two diaphragm air pressure tanks 3, and the two diaphragm air pressure tanks 3 are disposed upside down side by side in the upper portion of the frame 1 and are both in communication with the pressure stabilizing tube 8, which functions to perform pressure replenishment when the system pressure is insufficient. The water pump 4 and the water pump motor 5 are two, and the two water pumps 4 and the water pump motor 5 are arranged on the supporting table arranged on the lower portion of the frame 1 side by side, wherein each water pump 4 is provided with one water pump motor 5, each water pump motor 5 is electrically connected with the electric cabinet 2, the water inlet of each water pump 4 is communicated with the water inlet pipe 6, and the water outlet is communicated with the water outlet pipe 7.
More specifically, in this embodiment, as shown in fig. 3, a stop valve 13 is further disposed on the pipe connecting the water inlet of each water pump 4 to the water inlet pipe 6, and a check valve 14 is further disposed on the pipe connecting the water outlet of each water pump 4 to the water outlet pipe 7; a vacuum gauge 15 is also arranged on the water inlet pipe 6; the pressure stabilizing tube 8 is also provided with a pressure gauge 11 and a discharge valve 12; wherein the stop valve 13 is used for cutting off the water source at the input end of the water pump 4; the check valve 14 is used for cutting off the water source at the output end of the water pump 4; the vacuum meter 15 is used for monitoring water inlet pressure at the water inlet of the harness water inlet pipe 6; the pressure gauge 11 is used to monitor and display the water pressure in the outlet pipe 7.
Specifically, in this embodiment, the electric cabinet 2 includes a cabinet body and a constant voltage variable frequency control circuit disposed in the cabinet body for controlling the operation of the water pump motor 5, the pressure switch 9 and the pressure transmitter 10; the constant-voltage variable-frequency control circuit comprises a constant-voltage variable-frequency main loop and a constant-voltage variable-frequency control loop; referring to fig. 4, the constant-voltage variable-frequency main circuit is electrically connected to the two water pump motors 5 and the pressure transmitter 10 in the above embodiment, and the constant-voltage variable-frequency control circuit is correspondingly connected to the pressure switch 9 in the above embodiment.
More specifically, in the present embodiment, as shown in fig. 4 and 5, the constant voltage variable frequency main circuit includes a low voltage circuit breaker QF, an ac contactor KM1 main contact, an ac contactor KM2 main contact, an ac contactor KM3 main contact, an ac contactor KM4 main contact, an ac contactor KM5 main contact, a frequency converter, a thermal relay FR1, and a thermal relay FR2;
wherein, low-voltage circuit breaker QF one end links to each other with three live wires of constant voltage variable frequency main circuit, the other end links to each other with AC contactor KM5 main contact, AC contactor KM5 main contact's the other end links to each other with the input of converter, the output of converter links to each other with AC contactor KM3 main contact and AC contactor KM4 main contact, the control end of converter links to each other with pressure transmitter 10, AC contactor KM3 main contact's the other end links to each other with thermal relay FR1, AC contactor KM4 main contact's the other end links to each other with thermal relay FR 1's three terminal, link to each other with thermal relay FR 2's the other terminal with another water pump motor 5's three terminal, AC contactor KM1 main contact's one end is connected on three fire lines between thermal relay FR1 and AC contactor KM3 main contact, the other end is connected on three fire lines between low-voltage circuit breaker QF1 and AC contactor KM5 main contact, AC contactor KM2 main contact's one end is connected on three fire lines between thermal relay FR2 and AC relay KM4 main contact, between the three fire line main contacts of AC relay QF1 and AC contactor KM5 main contact.
More specifically, in this embodiment, referring to fig. 4 and 6, the constant voltage variable frequency control loop includes a fuse FU1, a fuse FU2, a fuse FU3, a fuse FU4, a control transformer TC1, a 1# mains frequency indicator lamp HL1, a 2# mains frequency indicator lamp HL2, a 1# variable frequency indicator lamp HL3, a 2# variable frequency indicator lamp HL4, a power supply indicator lamp HL5, a 1# overload indicator lamp HL6, a 2# overload indicator lamp HL7, a fault indicator lamp HL8, an ac contactor KM1 coil, an ac contactor KM2 coil, an ac contactor KM3 coil, an ac contactor KM4 coil, an ac contactor KM5 coil, a micro relay KM6 coil, a micro relay KM7 coil, an ac contactor KM1 normally closed contact, an ac contactor KM1 normally open contact, an ac contactor KM2 normally closed contact, an ac contactor KM3 normally closed contact, an ac contactor KM4 normally closed contact, an ac contactor 4 normally closed contact, an ac contactor normally closed contact 6, an ac relay 6 normally closed contact, an FR relay 1 FR normally closed contact 1 FR normally open/normally open button, an ac pump switch 1 SA2, an ac pump normally open switch 2, an ac motor normally closed switch 1/normally closed contact, an ac motor normally closed switch 1/normally open switch 2 SA2, an ac switch normally open button normally open switch 1/normally open switch 2 SA2, an ac switch normally open switch 2/normally open switch 2;
the fuse FU1 and the fuse FU2 are respectively arranged on two live wires connected with the primary end of the control transformer TC1, and the fuse FU3 and the fuse FU4 are respectively arranged on a zero wire and a live wire of a constant-voltage variable-frequency control loop connected with the secondary end of the control transformer TC 1;
two live wires connected with the primary end of the control transformer TC1 are connected to two live wires in the constant-voltage variable-frequency main loop, and a zero wire and a live wire of the constant-voltage variable-frequency control loop connected with the secondary end of the control transformer TC1 are respectively connected to a zero wire end and a live wire end of the programmable controller;
one end of the power supply indicator lamp HL5 is connected to the live wire between the fuse FU4 and the live wire end of the programmable controller, and the other end of the power supply indicator lamp is connected to the zero line between the fuse FU3 and the zero line end of the programmable controller;
one end of a fault indicator lamp HL8 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, the other end of the fault indicator lamp is connected with a normally open contact of an alternating current contactor KM6, and the other end of the normally open contact of the alternating current contactor KM6 is connected to a zero line between a fuse FU3 and a zero line end of the programmable controller;
one end of a coil of the micro relay KM7 is connected to a live wire between the fuse FU4 and a live wire end of the programmable controller, the other end of the coil is respectively connected with a start button SB1 and a normally open contact of the micro relay KM7, the other ends of the start button SB1 and the normally open contact of the micro relay KM7 are respectively connected with a stop button SB2, and the other end of the stop button SB2 is connected to a zero line between the fuse FU3 and a zero line end of the programmable controller;
one end of the cooling fan is connected to the live wire between the fuse FU4 and the live wire end of the programmable controller, the other end of the cooling fan is connected to the normally open contact of the micro relay KM7, and the other end of the normally open contact of the micro relay KM7 is also connected with a zero line between the fuse FU3 and the zero line end of the programmable controller;
one end of a normally closed contact of the thermal relay FR1 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, the other end of the normally closed contact is respectively connected with an alternating current contactor KM1 coil and an alternating current contactor KM3 coil, the other end of the alternating current contactor KM1 coil is connected with a normally closed contact of the alternating current contactor KM3, the other end of the normally closed contact of the alternating current contactor KM3 is connected with an output end Q0.0 of the programmable controller, the other end of the coil of the alternating current contactor KM3 is sequentially connected with a normally closed contact of the alternating current contactor KM1 and a normally closed contact of the alternating current contactor KM4, and the other end of the normally closed contact of the alternating current contactor KM4 is connected with an output end Q0.2 of the programmable controller;
one end of a thermal relay FR2 normally-closed contact is connected to a live wire between a fuse FU4 and a live wire end of a programmable controller, the other end of the thermal relay FR2 normally-closed contact is respectively connected with an alternating-current contactor KM2 coil and an alternating-current contactor KM4 coil, the other end of the alternating-current contactor KM2 coil is connected with an alternating-current contactor KM4 normally-closed contact, the other end of the alternating-current contactor KM4 normally-closed contact is connected with an output end Q0.1 of the programmable controller, the other end of the alternating-current contactor KM4 coil is sequentially connected with an alternating-current contactor KM2 normally-closed contact and an alternating-current contactor KM3 normally-closed contact, and the other end of the alternating-current contactor KM3 normally-closed contact is connected with an output end Q0.3 of the programmable controller;
one end of a coil of the alternating current contactor KM5 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, and the other end of the coil is connected to an output end Q0.4 of the programmable controller;
one end of a 1# power frequency indicator lamp HL1 is connected to a live wire between a fuse FU4 and a live wire end of a programmable controller, the other end of the 1# power frequency indicator lamp is connected with a normally open contact of an alternating current contactor KM1, and the other end of the normally open contact of the alternating current contactor KM1 is connected to a zero line between a fuse FU3 and a zero line end of the programmable controller;
one end of a 2# power frequency indicator lamp HL2 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, the other end of the 2# power frequency indicator lamp is connected with a normally open contact of an alternating current contactor KM2, and the other end of the normally open contact of the alternating current contactor KM2 is connected to a zero line between a fuse FU3 and a zero line end of the programmable controller;
one end of a 1# variable frequency indicator lamp HL3 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, the other end of the 1# variable frequency indicator lamp is connected with a normally open contact of an alternating current contactor KM3, and the other end of the normally open contact of the alternating current contactor KM3 is connected to a zero line between the fuse FU3 and a zero line end of the programmable controller;
one end of a No. 2 variable frequency indicator lamp HL4 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, the other end of the variable frequency indicator lamp is connected with a normally open contact of an alternating current contactor KM4, and the other end of the normally open contact of the alternating current contactor KM4 is connected to a zero line between a fuse FU3 and a zero line end of the programmable controller;
one end of the No. 1 overload indicator lamp HL6 is connected to the live wire between the fuse FU4 and the live wire end of the programmable controller, and the other end of the No. 1 overload indicator lamp is connected with the output end Q0.5 of the programmable controller;
one end of the No. 2 overload indicator lamp HL7 is connected to the live wire between the fuse FU4 and the live wire end of the programmable controller, and the other end of the No. 2 overload indicator lamp is connected with the output end Q0.6 of the programmable controller;
one end of a coil of the micro relay KM6 is connected to a live wire between the fuse FU4 and the live wire end of the programmable controller, and the other end of the coil is connected with an output end Q0.7 of the programmable controller;
one end of a normally open contact of the micro relay KM7 is also connected with the fuse FU3, and the other end is also connected with a zero line end of the programmable controller;
the input end of the programmable controller is respectively connected with a silencing button SB3, a single/double pump change-over switch SA1, a 1#/2# water pump motor change-over switch SA2, a variable/power frequency change-over switch SA3, a thermal relay FR1 normally open contact, a thermal relay FR2 normally open contact and a pressure switch 9.
More specifically, in the present embodiment, the # 1 power frequency indicator lamp HL1, the # 2 power frequency indicator lamp HL2, the # 1 frequency indicator lamp HL3, the # 2 frequency indicator lamp HL4, the power indicator lamp HL5, the # 1 overload indicator lamp HL6, the # 2 overload indicator lamp HL7, the fault indicator lamp HL8, the start button SB1, the stop button SB2, the mute button SB3, the single/double pump switch SA1, the # 1/# 2 water pump motor switch SA2, and the variable/power frequency switch SA3 are all embedded on the front face of the cabinet of the electric cabinet 2; the rest circuit components in the constant-voltage variable-frequency control loop and all circuit components of the constant-voltage variable-frequency control loop are arranged in the electric cabinet 2;
more specifically, in this embodiment, an observation port is further formed on the front face of the casing of the electric cabinet 2, and the observation port faces the display screen of the frequency converter.
More specifically, in this embodiment, a heat dissipation port is further formed on the side surface or the back surface of the casing of the electric cabinet 2, and the heat dissipation port faces the heat dissipation fan.
More specifically, in this embodiment, the frequency converter is preferably ACS355; the programmable controller is preferably model Siemens S7-200/CPU224; the pressure switch 9 is preferably of the type ZDGS-1; pressure transmitter 10 is preferably model CBGS-1.
The specific working principle of the constant-pressure variable-frequency water supply system for the middle-section pure water of the acidic electrolyzed oxidizing water generator of the utility model is described below by taking the above embodiments as examples:
firstly, a water inlet pipe 6 is communicated with a pure water input pipeline at the middle section of an acidic electrolyzed oxidizing water generator through a water inlet flange 16 arranged at the left side of a frame 1, and is communicated with a pure water output pipeline at the middle section of the acidic electrolyzed oxidizing water generator through a water outlet flange 17 arranged at the right side of the frame;
then, the stop valves 13 on the water inlet side and the check valves 14 on the water outlet side of the two water pumps 4 are manually opened;
then, the electric cabinet 2 is connected with an external 3-phase 380V alternating current power supply, and a starting button SB1 on the electric cabinet 2 is pressed to start the system to work; in the working process of the system, the water pressure at the water outlet side of the water outlet pipe 7 is monitored in real time through the pressure transmitter 10, the monitored water pressure data is transmitted to a frequency converter of the electric cabinet 2 in real time, and the data is displayed through a display screen of the frequency converter;
when the water pressure monitored by the pressure transmitter 10 is too small (i.e. smaller than the preset pressure value of the system), the water pressure can be increased by starting one of the water pumps to operate at a variable frequency and high speed, or by starting two water pumps simultaneously to operate simultaneously;
when the water pressure monitored by the pressure transmitter 10 is excessive (i.e., greater than the preset pressure value of the system), the water pressure can be reduced by starting one of the water pumps to perform variable frequency low-speed operation or by stopping one of the two water pumps from working;
specifically, in the present utility model, when one water pump can meet the system pressure, the one water pump works alone (i.e. single pump works); when one water pump cannot meet the system pressure, two water pumps work simultaneously (namely, double-pump work); under the natural state, two water pumps are in the frequency conversion state, and when the frequency converter is damaged or the system is in the maintenance state, the two water pumps are in the power frequency state.
In fig. 3: realizing the representation of a water pipeline; the dashed line represents an electrical line;
in fig. 4 and 5: m1 and M2 denote two water pump motors 5.
It should be noted that, in the present water supply system, the number of the diaphragm air pressure tank 3, the water pump 4 and the water pump motor 5 may be set to one or more than two in addition to the two described in the above embodiments, and may be specifically set according to actual needs; the control circuit part can be changed without changing, and the wiring requirement can be met by reserving a corresponding number of spare wiring ports in advance.
Finally, the foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present utility model or directly or indirectly applied to other related technical fields are included in the scope of the utility model.
Claims (9)
1. The utility model provides an acidic oxidation potential water generator middle section pure water constant voltage variable frequency water supply system which characterized in that: comprises an electric cabinet (2), a diaphragm air pressure tank (3), a water pump (4), a water pump motor (5), a water inlet pipe (6), a water outlet pipe (7), a pressure stabilizing pipe (8), a pressure switch (9) and a pressure transmitter (10); electric cabinet (2) respectively with water pump motor (5), pressure switch (9) and pressure transmitter (10) electricity are connected, diaphragm pneumatic tank (3), pressure switch (9) and pressure transmitter (10) all connect on steady voltage tube (8), steady voltage tube (8) are connected on outlet pipe (7), outlet pipe (7) are connected on the delivery port of water pump (4), inlet tube (6) are connected on the water inlet of water pump (4), water pump motor (5) are connected on the pump shaft of water pump (4).
2. The constant-pressure variable-frequency water supply system for the middle-stage pure water of the electrolyzed oxidizing water generator according to claim 1, wherein: the device comprises a frame (1), wherein an electric cabinet (2) is arranged at the top of the frame (1), a diaphragm air pressure tank (3) is reversely arranged on the upper part of the frame (1) in a penetrating way, a water inlet pipe (6) is transversely arranged on the lower part of the frame (1), one end of the water inlet pipe is arranged inside the frame (1) in a penetrating way and is communicated with a water inlet of a water pump (4), the other end of the water inlet pipe is arranged outside the frame (1) in a penetrating way and is connected with a water inlet flange (16), and the water inlet flange (16) is used for being communicated with a pure water input pipeline in the middle section of the acidic oxidation potential water generator; the water outlet pipe (7) is transversely arranged on the upper portion of the frame (1), one end of the water outlet pipe is arranged inside the frame (1) in a penetrating mode and is communicated with a water outlet of the water pump (4), the other end of the water outlet pipe is arranged outside the frame (1) in a penetrating mode and is connected with a water outlet flange (17), and the water outlet flange (17) is used for being communicated with a pure water output pipeline in the middle section of the acidic oxidation potential water generator.
3. The constant-pressure variable-frequency water supply system for the middle-stage pure water of the electrolyzed oxidizing water generator according to claim 2, wherein: the two diaphragm air pressure tanks (3) are arranged, and the two diaphragm air pressure tanks (3) are arranged on the upper part of the frame (1) in parallel in an inverted penetrating mode and are communicated with the pressure stabilizing tube (8).
4. The constant-pressure variable-frequency water supply system for the middle-stage pure water of the electrolyzed oxidizing water generator according to claim 2, wherein: two water pumps (4) and two water pump motors (5) are arranged, and the two water pumps (4) and the two water pump motors (5) are arranged on a supporting table arranged at the lower part of the frame (1) side by side; and each water pump (4) is provided with a water pump motor (5), each water pump motor (5) is electrically connected with the electric cabinet (2), the water inlet of each water pump (4) is communicated with the water inlet pipe (6), and the water outlet is communicated with the water outlet pipe (7).
5. The constant-pressure variable-frequency water supply system for the middle-stage pure water of the electrolyzed oxidizing water generator according to claim 4, wherein: a stop valve (13) is further arranged on the pipeline of the water inlet of each water pump (4) communicated with the water inlet pipe (6), and a check valve (14) is further arranged on the pipeline of the water outlet of each water pump (4) communicated with the water outlet pipe (7).
6. The constant-pressure variable-frequency water supply system for the middle-stage pure water of the electrolyzed oxidizing water generator according to claim 4, wherein: a vacuum gauge (15) is also arranged on the water inlet pipe (6).
7. The constant-pressure variable-frequency water supply system for the middle-stage pure water of the electrolyzed oxidizing water generator according to claim 1, wherein: the pressure stabilizing tube (8) is also provided with a pressure gauge (11) and a discharge valve (12).
8. The constant-pressure variable-frequency water supply system for the middle-stage pure water of the electrolyzed oxidizing water generator according to claim 4, wherein: the electric cabinet (2) is provided with a constant-voltage variable-frequency control circuit for controlling the operation of the water pump motor (5), the pressure switch (9) and the pressure transmitter (10), and the constant-voltage variable-frequency control circuit is respectively electrically connected with the water pump motor (5), the pressure switch (9) and the pressure transmitter (10).
9. The constant-pressure variable-frequency water supply system for the middle-stage pure water of the electrolyzed oxidizing water generator according to claim 8, wherein: the constant-voltage variable-frequency control circuit comprises a constant-voltage variable-frequency main loop and a constant-voltage variable-frequency control loop;
the constant-voltage variable-frequency main loop comprises a low-voltage circuit breaker QF, an alternating-current contactor KM1 main contact, an alternating-current contactor KM2 main contact, an alternating-current contactor KM3 main contact, an alternating-current contactor KM4 main contact, an alternating-current contactor KM5 main contact, a frequency converter, a thermal relay FR1 and a thermal relay FR2;
one end of a low-voltage breaker QF is connected with three live wires of a constant-voltage variable-frequency main loop, the other end of the low-voltage breaker QF is connected with an AC contactor KM5 main contact, the other end of the AC contactor KM5 main contact is connected with the input end of a frequency converter, the output end of the frequency converter is connected with an AC contactor KM3 main contact and an AC contactor KM4 main contact, the control end of the frequency converter is connected with a pressure transmitter (10), the other end of the AC contactor KM3 main contact is connected with a thermal relay FR1, the other end of the AC contactor KM4 main contact is connected with a thermal relay FR2, the other end of the thermal relay FR1 is connected with three binding posts of one water pump motor (5), the other end of the thermal relay FR2 is connected with three fire wires between the thermal relay FR1 and the AC contactor KM3 main contact, the other end of the AC contactor KM1 is connected with three fire wires between the low-voltage breaker QF1 and the AC contactor KM5 main contact, and one end of the AC contactor KM2 main contact is connected with the three fire wires between the thermal relay FR2 and the three fire contacts of the low-voltage contactor KM5 main contact;
wherein, the constant-voltage variable-frequency control loop comprises a fuse FU1, a fuse FU2, a fuse FU3, a fuse FU4, a control transformer TC1, a 1# power frequency indicator lamp HL1, a 2# power frequency indicator lamp HL2, a 1# variable-frequency indicator lamp HL3, a 2# variable-frequency indicator lamp HL4, a power supply indicator lamp HL5, a 1# overload indicator lamp HL6, a 2# overload indicator lamp HL7, a fault indicator lamp HL8, an alternating-current contactor KM1 coil, an alternating-current contactor KM2 coil, an alternating-current contactor KM3 coil, an alternating-current contactor KM4 coil, an alternating-current contactor KM5 coil, a micro-relay KM6 coil, a micro-relay KM7 coil, an alternating-current contactor KM1 normally-closed contact, an alternating-current contactor KM1 normally-open contact, an alternating-current contactor KM2 normally-closed contact, an alternating-current contactor KM3 normally-closed contact, an alternating-current contactor KM4 normally-open contact, a micro-relay KM6 normally-open contact, a micro-relay 7 normally-closed contact, an alternating-current relay FR1 normally-closed relay FR1, an FR2 normally-closed switch 2, an alternating-current switch 2 switch 1, an alternating-current switch 2 and a single-phase switch, a heat pump, a heat-current switch, a heat-pump, a single-switch, a heat-switch, a single-switch, a switch, and a heat-switch, and a control button;
the fuse FU1 and the fuse FU2 are respectively arranged on two live wires connected with the primary end of the control transformer TC1, and the fuse FU3 and the fuse FU4 are respectively arranged on a zero wire and a live wire of a constant-voltage variable-frequency control loop connected with the secondary end of the control transformer TC 1;
two live wires connected with the primary end of the control transformer TC1 are connected to two live wires in the constant-voltage variable-frequency main loop, and a zero wire and a live wire of the constant-voltage variable-frequency control loop connected with the secondary end of the control transformer TC1 are respectively connected to a zero wire end and a live wire end of the programmable controller;
one end of the power supply indicator lamp HL5 is connected to the live wire between the fuse FU4 and the live wire end of the programmable controller, and the other end of the power supply indicator lamp is connected to the zero line between the fuse FU3 and the zero line end of the programmable controller;
one end of a fault indicator lamp HL8 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, the other end of the fault indicator lamp is connected with a normally open contact of an alternating current contactor KM6, and the other end of the normally open contact of the alternating current contactor KM6 is connected to a zero line between a fuse FU3 and a zero line end of the programmable controller;
one end of a coil of the micro relay KM7 is connected to a live wire between the fuse FU4 and a live wire end of the programmable controller, the other end of the coil is respectively connected with a start button SB1 and a normally open contact of the micro relay KM7, the other ends of the start button SB1 and the normally open contact of the micro relay KM7 are respectively connected with a stop button SB2, and the other end of the stop button SB2 is connected to a zero line between the fuse FU3 and a zero line end of the programmable controller;
one end of the cooling fan is connected to the live wire between the fuse FU4 and the live wire end of the programmable controller, the other end of the cooling fan is connected to the normally open contact of the micro relay KM7, and the other end of the normally open contact of the micro relay KM7 is also connected with a zero line between the fuse FU3 and the zero line end of the programmable controller;
one end of a normally closed contact of the thermal relay FR1 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, the other end of the normally closed contact is respectively connected with an alternating current contactor KM1 coil and an alternating current contactor KM3 coil, the other end of the alternating current contactor KM1 coil is connected with a normally closed contact of the alternating current contactor KM3, the other end of the normally closed contact of the alternating current contactor KM3 is connected with an output end Q0.0 of the programmable controller, the other end of the coil of the alternating current contactor KM3 is sequentially connected with a normally closed contact of the alternating current contactor KM1 and a normally closed contact of the alternating current contactor KM4, and the other end of the normally closed contact of the alternating current contactor KM4 is connected with an output end Q0.2 of the programmable controller;
one end of a thermal relay FR2 normally-closed contact is connected to a live wire between a fuse FU4 and a live wire end of a programmable controller, the other end of the thermal relay FR2 normally-closed contact is respectively connected with an alternating-current contactor KM2 coil and an alternating-current contactor KM4 coil, the other end of the alternating-current contactor KM2 coil is connected with an alternating-current contactor KM4 normally-closed contact, the other end of the alternating-current contactor KM4 normally-closed contact is connected with an output end Q0.1 of the programmable controller, the other end of the alternating-current contactor KM4 coil is sequentially connected with an alternating-current contactor KM2 normally-closed contact and an alternating-current contactor KM3 normally-closed contact, and the other end of the alternating-current contactor KM3 normally-closed contact is connected with an output end Q0.3 of the programmable controller;
one end of a coil of the alternating current contactor KM5 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, and the other end of the coil is connected to an output end Q0.4 of the programmable controller;
one end of a 1# power frequency indicator lamp HL1 is connected to a live wire between a fuse FU4 and a live wire end of a programmable controller, the other end of the 1# power frequency indicator lamp is connected with a normally open contact of an alternating current contactor KM1, and the other end of the normally open contact of the alternating current contactor KM1 is connected to a zero line between a fuse FU3 and a zero line end of the programmable controller;
one end of a 2# power frequency indicator lamp HL2 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, the other end of the 2# power frequency indicator lamp is connected with a normally open contact of an alternating current contactor KM2, and the other end of the normally open contact of the alternating current contactor KM2 is connected to a zero line between a fuse FU3 and a zero line end of the programmable controller;
one end of a 1# variable frequency indicator lamp HL3 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, the other end of the 1# variable frequency indicator lamp is connected with a normally open contact of an alternating current contactor KM3, and the other end of the normally open contact of the alternating current contactor KM3 is connected to a zero line between the fuse FU3 and a zero line end of the programmable controller;
one end of a No. 2 variable frequency indicator lamp HL4 is connected to a live wire between a fuse FU4 and a live wire end of the programmable controller, the other end of the variable frequency indicator lamp is connected with a normally open contact of an alternating current contactor KM4, and the other end of the normally open contact of the alternating current contactor KM4 is connected to a zero line between a fuse FU3 and a zero line end of the programmable controller;
one end of the No. 1 overload indicator lamp HL6 is connected to the live wire between the fuse FU4 and the live wire end of the programmable controller, and the other end of the No. 1 overload indicator lamp is connected with the output end Q0.5 of the programmable controller;
one end of the No. 2 overload indicator lamp HL7 is connected to the live wire between the fuse FU4 and the live wire end of the programmable controller, and the other end of the No. 2 overload indicator lamp is connected with the output end Q0.6 of the programmable controller;
one end of a coil of the micro relay KM6 is connected to a live wire between the fuse FU4 and the live wire end of the programmable controller, and the other end of the coil is connected with an output end Q0.7 of the programmable controller;
one end of a normally open contact of the micro relay KM7 is also connected with the fuse FU3, and the other end is also connected with a zero line end of the programmable controller;
the input end of the programmable controller is respectively connected with a silencing button SB3, a single/double pump change-over switch SA1, a 1#/2# water pump motor change-over switch SA2, a variable/power frequency change-over switch SA3, a thermal relay FR1 normally open contact, a thermal relay FR2 normally open contact and a pressure switch (9).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222989689.8U CN219196153U (en) | 2022-11-10 | 2022-11-10 | Constant-pressure variable-frequency water supply system for pure water in middle section of acidic oxidation potential water generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222989689.8U CN219196153U (en) | 2022-11-10 | 2022-11-10 | Constant-pressure variable-frequency water supply system for pure water in middle section of acidic oxidation potential water generator |
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| CN219196153U true CN219196153U (en) | 2023-06-16 |
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| CN202222989689.8U Active CN219196153U (en) | 2022-11-10 | 2022-11-10 | Constant-pressure variable-frequency water supply system for pure water in middle section of acidic oxidation potential water generator |
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| CN (1) | CN219196153U (en) |
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