CN209779763U - Water supply system with flowmeter - Google Patents
Water supply system with flowmeter Download PDFInfo
- Publication number
- CN209779763U CN209779763U CN201920380791.3U CN201920380791U CN209779763U CN 209779763 U CN209779763 U CN 209779763U CN 201920380791 U CN201920380791 U CN 201920380791U CN 209779763 U CN209779763 U CN 209779763U
- Authority
- CN
- China
- Prior art keywords
- water supply
- coupled
- water
- resistor
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model relates to a discharge control field, more specifically say, it relates to a water supply system with flowmeter, aims at solving the water pump package and all keeps high water pressure state at each time point, seriously influences water pump life problem, and its technical scheme main points are: a water supply system with a flow meter comprises a water supply tank, a water supply pipe, a water pump set which is communicated with the water supply pipe and controls the water supply amount, the flow meter which is connected with the water supply pipe and detects the water flow in the water supply pipe, and a control console for detecting and reading the reading of the flow meter, wherein the water pump set comprises a pressure stabilizing pump for daily water supply and a booster pump for increasing the water pressure; the water supply system also comprises a controller which is connected with the console and controls whether the booster pump works or not and a control circuit which controls the controller to work. The utility model discloses a controller is controlled the booster pump to carry out intelligent regulation to the water pump group according to the flow, can guarantee user's water supply, the live time of again effectual reduction water pump.
Description
Technical Field
The utility model relates to a discharge control field, more specifically says, it relates to a water supply system with flowmeter.
Background
From the aspect of water resource distribution in China, water resources in south China are more abundant than those in north China, but regardless of the water resource distribution, water conservation becomes an important topic, and the water consumption can be divided into industrial water and domestic water, wherein the industrial water refers to water used for production, processing, cooling, air conditioning, washing, boilers and the like, and water used by workers in the industrial production process. The water for residents is also called water for residents to daily use, and comprises drinking, washing, flushing, bathing and the like.
In modern urban life, resident's water use often uses the district to manage and control as the unit, and resident's water consumption all has the difference in each time quantum in the district, and if the time water consumption of supper will be more than the afternoon time, but if reserve the water source with the time point that the water consumption is the most in one day all the time, will cause very big harm to the water pump group that is used for supplying water.
Real-time regulation of water supply is therefore essential.
SUMMERY OF THE UTILITY MODEL
not enough to prior art exists, the utility model aims to provide a water supply system with flowmeter controls the booster pump through the controller to carry out intelligent regulation according to the flow to the water pump group, can guarantee user's water supply, the live time of again effectual reduction water pump.
The above technical purpose of the present invention can be achieved by the following technical solutions: a water supply system with a flow meter comprises a water supply tank, a water supply pipe, a water pump set which is communicated with the water supply pipe and controls the water supply amount, the flow meter which is connected with the water supply pipe and detects the water flow in the water supply pipe, and a control console for detecting and reading the reading of the flow meter, wherein the water pump set comprises a pressure stabilizing pump for daily water supply and a booster pump for increasing the water pressure; the water supply system also comprises a controller which is connected with the console and controls whether the booster pump works or not and a control circuit which controls the controller to work.
generally, users below five layers can directly use the urban water supply network to supply water, the condition of insufficient water pressure cannot occur, and when the water supply device is generally used, the water pressure can be kept only by additionally arranging a fixed number of pressure stabilizing pumps, so that the water supply of high-rise users is met, but the water consumption of residents is not absolute, and the water consumption of residents is different every day, so that the water supply device needs to be detected by workers at any time, and the occurrence of the unexpected conditions of insufficient water supply and excessive water supply is avoided, which is very troublesome;
through the design of the flowmeter, when the total flow in unit time is overlarge, which indicates that water is frequently used at the moment, the controller controls the booster pump to start to increase the water pressure; when the total flow in unit time is too small, which indicates that the water consumption is less at the moment, the controller controls the booster pump to be closed so as to reduce the water pressure, thereby achieving the purpose of intelligent regulation.
the utility model discloses further set up to: the booster pump is provided with a plurality of booster pumps, and the same controller and control circuit are used for the plurality of booster pumps.
When only a single booster pump is used, the increased water pressure range is a fixed value, and the required water pressure is difficult to achieve, so that the arrangement of a single high-power water pump is inferior to the design of a plurality of low-power water pumps, so that the water pressure range is more flexible.
the utility model discloses further set up to: the flowmeter comprises a detection mechanism connected with the inside of the water supply pipe and a reading mechanism connected with the outer wall of the water supply pipe, wherein the detection mechanism is connected with the reading mechanism through an electromagnetic assembly; the electromagnetic assembly comprises a first magnetic block connected with the detection part and a second magnetic block connected with the reading part and rotating along with the first magnetic block.
through the design of the first magnetic block and the second magnetic block, the water supply pipe does not need to be provided with an opening for connecting the inside and the outside of the flowmeter, and water flow is prevented from flowing out.
The utility model discloses further set up to: the control circuit includes:
the detection circuit is coupled with the flowmeter to receive the induction signal and send out a detection signal;
the comparison circuit is coupled to the output end of the detection circuit to receive the detection signal and output a comparison signal;
and the execution circuit is coupled with the comparison circuit and controls the controller according to the comparison signal so as to control whether the booster pump is electrified or not.
By adopting the technical scheme, the detection circuit can process different signals of the flowmeter, and the control of the booster pump is realized through the controller.
The utility model discloses further set up to: the comparison circuit comprises a comparison circuit, a comparator and a comparator,
The first comparator is coupled to the detection circuit to receive the detection signal, compares the detection signal with a first preset value and outputs a first control signal, and the first comparator further comprises a second sliding resistor;
the second comparator is coupled to the detection circuit for receiving the detection signal, comparing the detection signal with a second preset value and outputting a second control signal, and the second comparator further comprises a fourth sliding resistor.
The first preset value is a preset value with larger water flow, and when the water flow is higher than the preset value, the booster pump is powered under the control of the controller, so that the water pressure and the water supply amount are increased;
The second preset value is a preset value with smaller water flow, and when the second preset value is not reached, the booster pump is powered off under the control of the controller, so that the water pressure and the water supply amount are reduced;
Meanwhile, through the design of the second sliding resistor and the fourth sliding resistor, the first preset value and the second preset value can be changed, so that the supercharging range of the booster pump is adjusted, and further, when a plurality of booster pumps are used simultaneously, different starting intervals can be respectively set, and different changes of water demand in different time periods can be more accurately adapted; the second sliding resistor and the fourth sliding resistor can be manually set by workers at regular time, and the sliding resistors can be automatically shifted through a timer, so that the effect of adjusting the resistance value is achieved.
The utility model discloses further set up to: the execution circuit comprises a first execution circuit and a second execution circuit,
The first control part is coupled with the first comparison part to receive a first control signal, and when the induction signal of the flowmeter is higher than a first preset value, the first control part enables the booster pump to be powered on and keeps a powered state;
And the second control part is coupled to the second comparison part to receive a second control signal, and when the sensing signal of the flowmeter is lower than a second preset value, the second control part enables the booster pump to be powered off and keeps a power-off state.
by adopting the technical scheme, when the sensing signal of the flowmeter is higher than the first preset value, the water flow is very large at the moment, and the booster pump is electrically operated under the control of the controller so as to meet the requirements of the water flow and the water pressure;
when the induction signal of the flowmeter is lower than the second preset value, the flow at the moment is small, and the booster pump is powered off under the control of the controller, so that the service life of the booster pump is prolonged, and the maintenance time of the booster pump is shortened.
The utility model discloses further set up to: the first control unit includes:
A fifth resistor, one end of which is coupled to the first comparing part;
the emitter of the first triode is grounded, and the base of the first triode is coupled to the other end of the fifth resistor;
one end of the sixth resistor is coupled to a connection point of the fifth resistor and the base electrode of the first triode, and the other end of the sixth resistor is coupled to a connection point of the first triode and the ground;
A ninth resistor, one end of which is coupled to the direct current and the other end of which is coupled to the collector of the first triode;
The first relay comprises a coil and a first normally open contact switch, one end of the coil is coupled to a connection point of a ninth resistor and direct current, the other end of the coil is coupled to a connection point of the ninth resistor and a first triode, and the first normally open contact switch is coupled with the controller.
Through adopting above-mentioned technical scheme, first control signal switches on first relay to make first normally open contact switch closed, and then make the booster pump continuously get electric under the control of controller, carry out work.
The utility model discloses further set up to: the second control section includes a second control section that includes,
a seventh resistor coupled to the second comparing part;
A base electrode of the second triode is coupled with the seventh resistor, and an emitting electrode of the second triode is grounded;
One end of the eighth resistor is coupled to a connection point of the seventh resistor and the base electrode of the second triode, and the other end of the eighth resistor is coupled to a connection point of the second triode and the ground;
And the second relay comprises a second normally open contact switch and a coil, one end of the coil is coupled to the direct current, the other end of the coil is coupled to a collector electrode of the second triode, and the second normally open contact switch is coupled with the controller.
By adopting the technical scheme, the second triode is conducted by the output second control signal, so that the second relay works, the first normally closed contact of the second relay is disconnected, and the first control part does not start the booster pump to work; and meanwhile, the second normally open contact switch is closed, so that the booster pump works.
The utility model discloses further set up to: the first control part and the second control part are both coupled with a signal recorder so as to record the triggering times of the first controller and the second controller.
Through the design of the signal recorder, the triggering times of the first preset value and the second preset value can be recorded, so that a worker can select the first preset value and the second preset value which are more accurate through big data observation
To sum up, the utility model discloses following beneficial effect has:
firstly, the booster pump is controlled by the controller, so that the water pump set is intelligently adjusted according to the flow, the water supply of a user can be ensured, and the service time of the water pump can be effectively reduced;
And secondly, through the design of a plurality of booster pumps, the regulation range of the water pressure is more flexible, and a more-level regulation scheme is provided to adapt to the requirements of each time period.
Drawings
FIG. 1 is a schematic structural diagram of the first embodiment;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic structural diagram of a first magnetic block and a second magnetic block;
fig. 4 is a circuit diagram of the control circuit.
in the figure: 1. a water supply tank; 2. a water supply pipe; 3. a water pump set; 31. a pressure stabilizing pump; 32. a booster pump; 4. a console; 41. a controller; 5. a flow meter; 51. a first magnetic block; 52. a second magnetic block; 1000. a control circuit; 6. a signal recorder; 100. a detection circuit; 200. a comparison circuit; 201. a first comparing section; 202. a second comparing section; 300. an execution circuit; 301. a first control unit; 302. a second control unit; r1, a first resistor; RP2, second sliding resistance; r3, third resistor; RP4, fourth sliding resistance; r5, fifth resistor; r6, sixth resistor; r7, seventh resistor; r8, eighth resistor; r9, ninth resistor; A. a first comparator; B. a second comparator; q1, the first triode; q2, the second triode; KM2, a second relay; KM1, a first relay; KM1-1, a first normally open contact switch; KM2-1 and a second normally open contact switch.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
The first embodiment is as follows: a water supply system with a flow meter, as shown in fig. 1 and fig. 2, comprising a water supply tank 1, a water supply pipe 2, a water pump set 3 which is communicated with the water supply pipe 2 and controls the water supply amount, a flow meter 5 which is connected with the water supply pipe 2 and detects the water flow in the water supply pipe 2, and a console 4 which detects and reads the reading of the flow meter 5, wherein the water pump set 3 comprises a pressure stabilizing pump 31 for daily water supply and a plurality of booster pumps 32 for increasing the water pressure; the water supply system further includes a controller 41 connected to the console 4 and controlling whether the booster pump 32 operates, and a control circuit 1000 controlling the operation of the controller 41. Through the design of the flowmeter 5, when the total flow rate per unit time is too large, which indicates that water is frequently used at this time, the controller 41 controls the booster pump 32 to start to increase the water pressure; when the total flow rate per unit time is too small, which indicates that the water consumption is low at this time, the controller 41 controls the booster pump 32 to be turned off to reduce the water pressure, thereby achieving the purpose of intelligent regulation.
when in use, if a single high-power booster pump 32 is used, the regulated water pressure range is a fixed value, which is too heavy and cannot be regulated normally, and the required water pressure is difficult to achieve, therefore, the single high-power booster pump 32 is not designed as a plurality of low-power booster pumps 32, so that the water pressure range is more flexible. Therefore, a plurality of booster pumps 32 are provided, the same controller 41 and control circuit 1000 are used for the plurality of booster pumps 32, and the controller 41 is connected to the console 4.
as shown in fig. 1 and 3, the flowmeter 5 includes a detection mechanism connected to the inside of the water supply pipe 2, and a reading mechanism connected to the outer wall of the water supply pipe 2, and the detection mechanism and the reading mechanism are connected through an electromagnetic assembly. The electromagnetic assembly comprises a first magnetic block 51 connected with the detection part and a second magnetic block connected with the reading part and rotating along with the first magnetic block 51, wherein the first magnetic block 51 is in an impeller shape and is driven by water flow to rotate when the water flow flows, and the second magnetic block 52 is driven by the first magnetic block 51 to rotate; the second magnetic block 52 is in a gear shape, so as to drive the gear inside the reading part to rotate, thereby reading the numerical value. The design of the first magnetic block 51 and the second magnetic block 52 finally avoids the water supply pipe 2 from being provided with an opening communicating the inside and the outside of the flowmeter 5, and avoids water flow from flowing out.
As shown in fig. 1 and 4, the control circuit 1000 includes a detection circuit 100 coupled to the flow meter 5 for receiving the sensing signal and sending a detection signal, a comparison circuit 200 coupled to the detection circuit 100, and an execution circuit 300 coupled to the comparison circuit 200.
the comparator circuit 200 includes a first comparator 201 and a second comparator 202.
The first comparing part 201 comprises a first resistor R1, a second sliding resistor RP2 and a first comparator a, wherein one end of the first resistor R1 is coupled to direct current, the other end of the first resistor R1 is coupled to one end of the second sliding resistor RP2, the other end of the second sliding resistor RP2 is grounded, the inverting end of the first comparator a is coupled to a connection point of the first resistor R1 and the second sliding resistor RP2 to receive a first preset value, the first preset value has a larger water flow, and when the first preset value is higher than the preset value, the booster pump 32 is powered under the control of the controller 41, so that the water pressure and the water supply amount are increased; the positive terminal of the first comparator a is coupled to the flow meter 5 for receiving the detection signal.
The second comparing part 202 includes a third resistor R3, a fourth sliding resistor RP4, and a second comparator B, wherein one end of the third resistor R3 is coupled to the dc, the other end of the third resistor R3 is coupled to one end of the fourth sliding resistor RP4, the other end of the fourth sliding resistor RP4 is grounded, the positive phase end of the second comparator B is coupled to the connection point of the third resistor R3 and the fourth sliding resistor RP4 to receive a second preset value, the second preset value is a preset value with a smaller water flow, and when the second preset value is not reached, the booster pump 32 is powered off under the control of the controller 41, so as to reduce the water pressure and the water supply amount; the inverting terminal of the second comparator B is coupled to the flow meter 5 to receive the detection signal.
The execution circuit 300 includes a first control portion 301 and a second control portion 302, and the first control portion 301 and the second control portion 302 are coupled to the signal recorder 6 for recording the triggering times of the first controller 41 and the second controller 41.
The first control part 301 includes a fifth resistor R5, a sixth resistor R6, a first triode Q1, a ninth resistor R9, and a first relay KM1, wherein one end of the fifth resistor R5 is coupled to the output end of the first comparator a, and the other end of the fifth resistor R5 is coupled to the base of the first triode Q1; the collector of the first transistor Q1 is coupled to the second relay KM2, and the emitter of the first transistor Q1 is grounded.
One end of the sixth resistor R6 is coupled to a connection point between the fifth resistor R5 and the base of the first transistor Q1, and the other end of the sixth resistor R6 is coupled to a connection point between the first transistor Q1 and ground.
the ninth resistor R9 has one end coupled to the dc power and the other end coupled to the collector of the first transistor Q1.
The first relay KM1 includes a coil and a first normally open contact switch KM1-1, one end of the coil is coupled to a connection point of the ninth resistor R9 and the direct current, the other end of the coil is coupled to a connection point of the ninth resistor R9 and the first transistor Q1, and the first normally open contact switch KM1-1 is coupled to the controller 41.
the second control part 302 comprises a seventh resistor R7, an eighth resistor R8, a second triode Q2, a second relay KM2 and a freewheeling diode, wherein one end of the seventh resistor R7 is coupled to one end of the second comparator B, and the other end of the seventh resistor R7 is coupled to the base of the second triode Q2; the collector of the second transistor Q2 is coupled to the second relay KM2, and the emitter of the second transistor Q2 is grounded.
One end of the eighth resistor R8 is coupled to the connection point of the seventh resistor R7 and the base of the second transistor Q2, and the other end is coupled to the connection point of the second transistor Q2 and the ground; the second relay KM2 is coupled to the dc power, the second relay KM2 includes a second normally open contact switch KM2-1 coupled to the booster pump 32, and the second normally open contact switch KM2-1 is coupled to the cue circuit. One end of the freewheeling diode is coupled to a connection point between the second relay KM2 and the collector of the second transistor Q2, and the other end of the freewheeling diode is coupled to a connection point between the second relay KM2 and ground.
the working process is as follows: when the water flow is higher than a first preset value, a first control signal is transmitted to the first comparison part 201 through signal processing of the flowmeter 5, the first relay KM1 closes the first normally open contact switch KM1-1, so that direct current, the first normally open contact switch KM1-1, the controller 41 and the booster pump 32 are electrically connected, and finally, the direct current is grounded, so that the booster pump 32 is electrically operated under the control of the controller 41;
When the water flow is lower than the second preset value, the second comparing part 202 transmits a second control signal, so that the second relay KM2 is started, the direct current, the second normally open contact switch KM2-1, the controller 41 and the booster pump 32 are electrically connected, and finally, the ground is connected, so that the booster pump 32 is controlled by the controller 41 to be powered off and does not work any more.
Example two: the water supply system with a flow meter, as shown in fig. 4, is different from the first embodiment in that: the first comparator A is coupled with the second sliding resistor RP2, the second comparator B is coupled with the fourth sliding resistor RP4, and through the design of the second sliding resistor RP2 and the fourth sliding resistor RP4, the first preset value and the second preset value can be changed, so that the supercharging range of the booster pump 32 can be conveniently adjusted, finally, when the plurality of booster pumps 32 are used simultaneously, different starting intervals can be respectively set, and the water demand of different time periods can be more accurately adapted to different changes.
meanwhile, in this patent, the controller 41 corresponds to an inverter, and when a signal from the first control part 301 is input, the controller 41 controls the normally closed booster pump 32 to be started to increase the water pressure; when a signal from the second control portion 302 is input, the controller 41 controls the normally open booster pump 32 to be closed to reduce the water pressure. The number of the booster pumps 32 which are normally open is preset according to the water consumption experience of the community.
the water use experience of the community is known from the recorded data of the signal recorder 6, and the times and time of repeated opening and closing of each booster pump 32 every day are calculated through the data of the signal recorder 6, so that the big data of water use in each time period every day is obtained, and finally the water use experience is obtained.
Example three: the water supply system with a flow meter, as shown in fig. 4, is different from the first embodiment in that: the second sliding resistor RP2 and the fourth sliding resistor RP4 can be manually set by workers at regular time, and the sliding resistors can be automatically shifted by a timer to achieve the purpose of adjusting the preset value, so that the intelligent degree is further increased.
it is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. a water supply system with a flow meter, characterized in that: the water supply device comprises a water supply tank (1), a water supply pipe (2), a water pump set (3) which is communicated with the water supply pipe (2) and controls the water supply amount, a flowmeter (5) which is connected with the water supply pipe (2) and detects the water flow in the water supply pipe (2), and a console (4) which detects and reads the reading of the flowmeter (5), wherein the water pump set (3) comprises a pressure stabilizing pump (31) for daily water supply and a booster pump (32) for increasing the water pressure; the water supply system also comprises a controller (41) which is connected with the console (4) and controls whether the booster pump (32) works or not, and a control circuit (1000) which controls the controller (41) to work.
2. The water supply system with a flow meter according to claim 1, characterized in that: the booster pumps (32) are provided in plurality, and the same controller (41) and control circuit (1000) are used for the plurality of booster pumps (32).
3. the water supply system with a flow meter according to claim 1, characterized in that: the flowmeter (5) comprises a detection mechanism connected to the inside of the water supply pipe (2) and a reading mechanism connected to the outer wall of the water supply pipe (2), and the detection mechanism is connected with the reading mechanism through an electromagnetic assembly; the electromagnetic assembly comprises a first magnetic block (51) connected with the detection part and a second magnetic block (52) connected with the reading part and rotating along with the first magnetic block (51).
4. the water supply system with a flow meter according to claim 3, wherein: the control circuit (1000) comprises:
A detection circuit (100) coupled to the flow meter (5) for receiving the sensing signal and sending out a detection signal;
A comparison circuit (200) coupled to an output of the detection circuit (100) for receiving the detection signal and outputting a comparison signal;
And the execution circuit (300) is coupled with the comparison circuit (200) and controls the controller (41) according to the comparison signal so as to control whether the booster pump (32) is electrified or not.
5. The water supply system with a flow meter according to claim 4, wherein: the comparison circuit (200) comprises,
a first comparator (201) coupled to the detection circuit (100) for receiving the detection signal, comparing the detection signal with a first preset value and outputting a first control signal, wherein the first comparator (a) further comprises a second sliding resistor (RP 2);
the second comparator (B) is coupled to the detection circuit (100) for receiving the detection signal, comparing the detection signal with a second predetermined value, and outputting a second control signal, and the second comparator (B) further includes a fourth sliding resistor (RP 4).
6. The water supply system with a flow meter according to claim 4, wherein: the execution circuit (300) comprises,
The first control part (301) is coupled to the first comparison part (201) to receive a first control signal, and when the sensing signal of the flowmeter (5) is higher than a first preset value, the first control part (301) enables the booster pump (32) to be powered on and keeps a powered-on state;
and a second control part (302) which is coupled to the second comparison part (202) to receive a second control signal, and when the sensing signal of the flowmeter (5) is lower than a second preset value, the second control part (302) enables the booster pump (32) to be powered off and keeps the power-off state.
7. The water supply system with a flow meter according to claim 6, wherein: the first control unit (301) includes:
a fifth resistor (R5) having one end coupled to the first comparing portion (201);
A first triode (Q1), the emitter of which is grounded and the base of which is coupled with the other end of the fifth resistor (R5);
a sixth resistor (R6), one end of which is coupled to the connection point between the fifth resistor (R5) and the base of the first transistor (Q1), and the other end of which is coupled to the connection point between the first transistor (Q1) and ground;
a ninth resistor (R9) having one end coupled to the dc power and the other end coupled to the collector of the first transistor (Q1);
the first relay (KM 1) comprises a coil and a first normally open contact switch (KM 1-1), wherein one end of the coil is coupled to a connection point of a ninth resistor (R9) and direct current, the other end of the coil is coupled to a connection point of the ninth resistor (R9) and a first triode (Q1), and the first normally open contact switch (KM 1-1) is coupled with the controller (41).
8. The water supply system with a flow meter according to claim 6, wherein: the second control part (302) comprises,
A seventh resistor (R7) coupled to the second comparing section (202);
a second transistor (Q2), the base of which is coupled to the seventh resistor (R7) and the emitter of which is grounded;
An eighth resistor (R8), one end of which is coupled to the connection point between the seventh resistor (R7) and the base of the second transistor (Q2), and the other end of which is coupled to the connection point between the second transistor (Q2) and ground;
and the second relay (KM 2) comprises a second normally open contact switch (KM 2-1) and a coil, wherein one end of the coil is coupled with direct current, the other end of the coil is coupled with a collector of the second triode (Q2), and the second normally open contact switch (KM 2-1) is coupled with the controller (41).
9. The water supply system with a flow meter according to claim 6, wherein: the first control part (301) and the second control part (302) are both coupled with a signal recorder (6) to record the triggering times of the first controller (41) and the second controller (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920380791.3U CN209779763U (en) | 2019-03-21 | 2019-03-21 | Water supply system with flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920380791.3U CN209779763U (en) | 2019-03-21 | 2019-03-21 | Water supply system with flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209779763U true CN209779763U (en) | 2019-12-13 |
Family
ID=68799433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920380791.3U Active CN209779763U (en) | 2019-03-21 | 2019-03-21 | Water supply system with flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209779763U (en) |
-
2019
- 2019-03-21 CN CN201920380791.3U patent/CN209779763U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208883576U (en) | A kind of energy-saving frequency conversion artificial swamp water treatment system | |
| CN203258794U (en) | Low-standby-power-consumption air conditioner intelligent control system | |
| CN209779763U (en) | Water supply system with flowmeter | |
| CN106647244B (en) | A kind of sewage treatment elevator pump operating system | |
| CN209779762U (en) | water supply system with flowmeter | |
| CN208487001U (en) | A kind of water cooling intelligence pump control system | |
| CN203373810U (en) | Automatic pressure regulating and controlling device for water supply system | |
| CN203741939U (en) | Intelligent box type negative-pressure-free water supply device | |
| CN203549060U (en) | Household water saving valve control system | |
| CN206477984U (en) | A kind of constant flow water pump depth energy-saving control system | |
| CN212801738U (en) | Intelligent non-negative pressure water supply equipment | |
| CN104746584A (en) | Intelligent box type non-negative pressure water supply device | |
| CN209114543U (en) | Time control fully-automatic constant pressure changeable water supply controller | |
| CN203928275U (en) | Base station air conditioner energy-saving device special | |
| TWI468891B (en) | Energy Saving Water Tower System and Energy Saving Control Method of Pumping Motor | |
| CN202969452U (en) | Automatic pressurization water supply device | |
| CN205955962U (en) | Energy -conserving constant pressure water supply electrical equipment | |
| CN204215207U (en) | A kind of variable quantity and pressure changeable water supply controller | |
| CN204438564U (en) | Solar water heater automatic water-supply apparatus | |
| CN221744264U (en) | Air conditioner BA control system based on thing networking | |
| CN209321223U (en) | A kind of ship water system | |
| CN212026413U (en) | Constant-pressure variable-frequency water supply device | |
| CN210071865U (en) | Low-power-consumption Hall flow velocity detection circuit of intelligent fire hydrant | |
| CN213634146U (en) | Sewage treatment control system | |
| CN203414746U (en) | Constant-flow intelligent power-saving protection and control system based on six water pumps |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |