CN206361947U - Cold and hot water supply system - Google Patents
Cold and hot water supply system Download PDFInfo
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- CN206361947U CN206361947U CN201720004889.XU CN201720004889U CN206361947U CN 206361947 U CN206361947 U CN 206361947U CN 201720004889 U CN201720004889 U CN 201720004889U CN 206361947 U CN206361947 U CN 206361947U
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Abstract
The utility model discloses a kind of cold and hot water supply system, aim to provide a kind of cold and hot water supply system for making full use of water resource, its drip irrigation device is that the temperature for the water discharged by temperature detector to water heater is detected in real time, and be compared detected value with minimum temperature threshold by threshold decision device, when water temperature is less than minimum temperature threshold, normally opened cold valves are in opening, normally closed hot water valve is closed, so the cold water of now water heater discharge will not be entered with hot water facility, but entered by going out cold water pipes and cooling waterpipe with cold water equipment；When water temperature is higher than minimum temperature threshold, threshold decision device sends switching signal to normally opened cold valves and normally closed hot water valve simultaneously, now normally opened cold valves are closed, normally closed hot water valve is in opening, so the hot water of now water heater discharge is entered with hot water facility, so that the cold water in water heater is fully used by heat supply waterpipe.
Description
Technical field
The utility model is related to water system field, more particularly to a kind of cold and hot water supply system.
Background technology
Water heater, just refers to by various physical principles, is that cold water temperature rise becomes the one of hot water within a certain period of time
Plant device.
At present, the outlet conduit of water heater is generally connected with the housed device such as washbowl, shower, is using water heater
Before, a certain amount of cold water is often contained in the hot-water line of water heater, simultaneously because the pipe between water heater and housed device
Also a certain amount of cold water can be contained in road length, the pipeline, and this phenomenon becomes apparent in winter, and generally people
All it is to need directly to use hot water when using water supply of water heater, the cold water now accumulated in hot-water line will directly be bled off,
So as to cause the waste at water source.
Utility model content
The purpose of this utility model is to provide a kind of cold and hot water supply system, and it has the advantages that to make full use of water resource.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of cold and hot water supply system, including watering, water heater, with cold water equipment and hot water facility is used, watering is with using
Cold water equipment and with being connected with cooling waterpipe between hot water facility, water heater and with being connected with supplying hot water between hot water facility
Pipeline, water heater is connected with hot and cold water switching device, and cold water pipe is connected with out between hot and cold water switching device and cooling waterpipe
Road, hot and cold water switching device includes
Temperature detector, for discharging water heater the temperature of water detect and output detection value；
Threshold decision device, is electrically connected at temperature detector, is preset with a minimum temperature threshold, for receiving and inciting somebody to action
Detected value is compared with minimum temperature threshold, the output switching signal when detected value is higher than minimum temperature threshold；
Normally opened cold valves, are electrically connected at threshold decision device, cold water pipes are closed out in response to switching signal；
Normally closed hot water valve, is electrically connected at threshold decision device, and heat supply waterpipe is opened in response to switching signal.
It is arranged such, the temperature for the water discharged by temperature detector to water heater is detected in real time, and passes through threshold
Detected value is compared by value judgment means with minimum temperature threshold, when water temperature is less than minimum temperature threshold, normally opened cold valves
In opening, normally closed hot water valve is closed, so the cold water of now water heater discharge will not enter and use hot water
In equipment, but entered by going out cold water pipes and cooling waterpipe with cold water equipment；When water temperature is higher than minimum temperature threshold
During value, threshold decision device sends switching signal to normally opened cold valves and normally closed hot water valve simultaneously, and now normally opened cold valves are in
Closed mode, normally closed hot water valve is in opening, so the hot water of now water heater discharge is entered by heat supply waterpipe
With in hot water facility, so that the cold water in water heater is fully used so that whole cold and hot water supply system has abundant profit
With the advantage of water resource.
Further set：Hot and cold water switching device includes the tank that prestores that is connected with water heater, prestore tank respectively with
Go out cold water pipes with heat supply waterpipe to be connected.
It is arranged such, when water heater outwards carries out draining, the water of discharge is first into the tank that prestores, when fortune water
Water in case just may proceed to discharge when reaching a certain amount of, so that temperature detector is more square for the detection of water temperature
Just accurate, it is ensured that when water heater discharges hot water, hot water can be timely entered with hot water facility.
Further set：Detected value, minimum temperature threshold are disposed as voltage analog.
Further set：Temperature detector is set to located at the DS18B20 temperature sensors prestored in tank.
It is arranged such, due to the self structure characteristic of DS18B20 temperature sensors so that temperature detector has volume
The simple advantage of small, application method, so that the antijamming capability of temperature detector is stronger, so that extraneous factor
Influence for temperature detector is smaller, improves the accuracy of detection of whole temperature detector
Further set：Go out cold water pipes and be provided with the water tank being connected with cooling waterpipe.
It is arranged such, when water heater discharges cold water, because the amount of cold water is limited, and much uses in water-cooling device simultaneously
There is no water reservoir, but directly use, so being stored by water tank to the water discharged in water heater, to cause water
Case is by cooling waterpipe to being supplied water with cold water equipment.
Further set：Normally opened cold valves and normally closed hot water valve are disposed as magnetic valve.
It is arranged such, magnetic valve controls the keying of itself by electromagnetism, and temperature detector and threshold decision device
Output is electric signal, so normally opened cold valves and normally closed hot water valve are more easily controlled, and compared to mechanical water valve,
The response speed of magnetic valve is rapider.
Further set：Threshold decision device is set to comparator.
It is arranged such, due to the self-characteristic of comparator so that whole threshold decision device, which has, judges fireballing excellent
Point, and make it that working power voltage scope is wider, with single supply and the workable advantage of dual power supply.
Further set：Switching signal is set to high level.
It is arranged such, normally opened cold valves and normally closed hot water valve is controlled by high level so that control effect is more
Plus it is outstanding, when water temperature exceedes minimum temperature threshold, switching signal is sent to normally opened cold valves and normally closed heat much sooner
Water valve so that normally opened cold valves and normally closed hot water valve are more promptly opened and closed, so that more rapidly to going out cold water pipe
Road and heat supply waterpipe are opened and closed.
In summary, the utility model has the advantages that：It can be set on water heater and be electrically connected at threshold value and sentence
The indicator lamp of disconnected device, the indicator lamp is shown in green when the water temperature that water heater is discharged is less than minimum temperature threshold, now hot
Hydrophone discharge for cold water；It is shown in red when water temperature is higher than minimum temperature threshold, now water heater discharge for hot water, from
And make it that user more easily recognizes the temperature conditions of the water of water heater discharge, is easy to user to use.
Brief description of the drawings
Fig. 1 is the system schematic of the present embodiment cold and hot water supply system；
Fig. 2 is the circuit block diagram of the present embodiment hot and cold water switching device；
Fig. 3 is the circuit diagram of the present embodiment hot and cold water switching device.
In figure, 1, watering；2nd, water heater；3rd, cold water equipment is used；4th, hot water facility is used；5th, cooling waterpipe；6th, heat supply
Waterpipe；7th, hot and cold water switching device；8th, cold water pipes are gone out；9th, normally opened cold valves；10th, normally closed hot water valve；11st, prestore tank；
12nd, water tank.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of cold and hot water supply system, as shown in figure 1, including watering 1, watering 1 is simultaneously to boiler, with cold water equipment 3
And supplied water with hot water facility 4, the water side of water heater 2 is connected with the tank 11 that prestores, the water side point for the tank 11 that prestores
Cold water pipes 8 and heat supply waterpipe 6 are not connected with out, are gone out cold water pipes 8 and are leaned on one end with water storage flume to be provided with normally opened cold valves 9,
The water side for going out cold water pipes 8 is connected with water tank 12, and the water side of water tank 12 is connected with cooling waterpipe 5, cooling water pipe
The water side in road 5 is connected with cold water equipment 3 and with hot water facility 4；Heat supply waterpipe 6 is provided with by the one end for the tank 11 that prestores
Normally closed hot water valve 10, the water side of heat supply waterpipe 6 is connected with hot water facility 4.
As shown in Figure 2 to Figure 3, the tank 11 that prestores is interior to be provided with DS18B20 temperature sensors, DS18B20 temperature sensors pair
The temperature of the discharge water of water heater 2 detect simultaneously output detection value, and DS18B20 temperature sensors are coupled with comparator, comparator
The output switching signal when detected value exceedes minimum temperature threshold, wherein detected value and minimum temperature threshold is set to voltage analog
Amount, switching signal is set to high level, and comparator is coupled with two normally opened cold valves 9 and normally closed hot water valve parallel with one another simultaneously
10。
Comparator is set to LM393 comparators, in-phase input end input one reference voltage, i.e. the minimum temperature threshold of comparator
Value, the anti-phase input of comparator is coupled to DS18B20 temperature sensors, and the output end of comparator is coupled to timing circuit, meter
When circuit include counter, register and crystal oscillator, the output end of timing circuit is coupled to the grid of metal-oxide-semiconductor, the source electrode of metal-oxide-semiconductor
The two ends in normally opened cold valves 9 and the place loop of normally closed hot water valve 10 are respectively coupled to drain electrode.
When water heater 2 is started working, DS18B20 temperature sensors are in real time to the heater inside 2 of water tank 12 discharge that prestores
The temperature of water is detected that, when the water of discharge is cold water, detected value is less than minimum temperature threshold, so LM393 comparators are defeated
Go out low level, now the grid of metal-oxide-semiconductor is low level, so metal-oxide-semiconductor is not turned on, normally opened cold valves 9 and normally closed hot water valve 10
There is no electric current in the loop, normally opened cold valves 9 are kept it turned on, and normally closed hot water valve 10 is remained off, and is now prestored
The water discharged in tank 11 and water heater 2 is all drained into water tank 12, for being used with cold water equipment 3.
When the water that water heater 2 is discharged is hot water, the temperature for the reclaimed water of tank 11 that prestores is higher than minimum temperature threshold, so
LM393 comparators export high level, now the grid of metal-oxide-semiconductor be high level, now metal-oxide-semiconductor turn on, normally opened cold valves 9 and often
Close hot water valve 10 has electric current to flow through in the loop, so now normally opened cold valves 9 are closed, while normally closed hot water valve
10 are in opening, and the water now discharged in water heater 2 is all drained into on hot water facility 4.
The above embodiments are only to explain of the present utility model, and it is not to limitation of the present utility model, ability
Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but
As long as all being protected in right of the present utility model by Patent Law.
Claims (8)
1. a kind of cold and hot water supply system, including watering (1), water heater (2), with cold water equipment (3) and with hot water facility (4),
Watering (1) and with cold water equipment (3) and with being connected with cooling waterpipe (5) between hot water facility (4), water heater (2) with
With being connected with heat supply waterpipe (6) between hot water facility (4), it is characterised in that：Described water heater (2) is connected with hot and cold water and cut
Changing device (7), is connected with out cold water pipes (8), hot and cold water switching between hot and cold water switching device (7) and cooling waterpipe (5)
Device (7) includes
Temperature detector, for discharging water heater (2) temperature of water detect and output detection value；
Threshold decision device, is electrically connected at temperature detector, is preset with a minimum temperature threshold, for receiving and will detect
Value is compared with minimum temperature threshold, the output switching signal when detected value is higher than minimum temperature threshold；
Normally opened cold valves (9), are electrically connected at threshold decision device, and cold water pipes (8) are closed out in response to switching signal；
Normally closed hot water valve (10), is electrically connected at threshold decision device, and heat supply waterpipe (6) is opened in response to switching signal.
2. cold and hot water supply system according to claim 1, it is characterised in that：Described hot and cold water switching device (7) include with
The tank that prestores (11) that water heater (2) is connected, the tank that prestores (11) is respectively with going out cold water pipes (8) and heat supply waterpipe (6)
It is connected.
3. cold and hot water supply system according to claim 1, it is characterised in that：Described detected value, minimum temperature threshold are all provided with
It is set to voltage analog.
4. cold and hot water supply system according to claim 1, it is characterised in that：Described temperature detector is set to located at pre-
DS18B20 temperature sensors in water storage flume (11).
5. cold and hot water supply system according to claim 2, it is characterised in that：The described cold water pipes (8) that go out are provided with and confession
The water tank (12) that cold water pipes (5) are connected.
6. cold and hot water supply system according to claim 1, it is characterised in that：Described normally opened cold valves (9) and normally closed hot water
Valve (10) is disposed as magnetic valve.
7. cold and hot water supply system according to claim 1, it is characterised in that：Described threshold decision device is set to compare
Device.
8. cold and hot water supply system according to claim 1, it is characterised in that：Described switching signal is set to high level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720004889.XU CN206361947U (en) | 2017-01-03 | 2017-01-03 | Cold and hot water supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720004889.XU CN206361947U (en) | 2017-01-03 | 2017-01-03 | Cold and hot water supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206361947U true CN206361947U (en) | 2017-07-28 |
Family
ID=59378800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720004889.XU Active CN206361947U (en) | 2017-01-03 | 2017-01-03 | Cold and hot water supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206361947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112817355A (en) * | 2021-02-26 | 2021-05-18 | 安徽中烟工业有限责任公司 | Cold and hot double-purpose water adding system |
-
2017
- 2017-01-03 CN CN201720004889.XU patent/CN206361947U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112817355A (en) * | 2021-02-26 | 2021-05-18 | 安徽中烟工业有限责任公司 | Cold and hot double-purpose water adding system |
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