CN209248731U - A kind of gas leakage alarm protective device and wall-hung boiler - Google Patents
A kind of gas leakage alarm protective device and wall-hung boiler Download PDFInfo
- Publication number
- CN209248731U CN209248731U CN201822084973.4U CN201822084973U CN209248731U CN 209248731 U CN209248731 U CN 209248731U CN 201822084973 U CN201822084973 U CN 201822084973U CN 209248731 U CN209248731 U CN 209248731U
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- Prior art keywords
- gas
- power supply
- alarm
- blower
- relay
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Abstract
The utility model discloses a kind of gas leakage alarm protective device and wall-hung boiler, gas alarm device safety not high problem when overcoming wall-hung boiler use in the prior art.It contains gas leakage alarm driving circuit, nominal situation control circuit, alarm operating conditions circuit, fan drive circuit, gas shutoff valve control circuit, blower, combined aural and visual alarm, gas shutoff valve and MCU, the output end of gas leakage alarm driving circuit is connected respectively in access nominal situation control circuit and alarm operating conditions circuit, the output end of fan drive circuit and gas shutoff valve control circuit is connected in access nominal situation control circuit, gas leakage alarm driving circuit signal input part connects MCU input port, in blower and combined aural and visual alarm access alarm operating conditions circuit in parallel, the output port of MCU is separately connected the input terminal of fan drive circuit and gas shutoff valve control circuit.Blower is opened in technology energy fast sound-light alarm, cutting combustion gas.
Description
Technical field
The utility model relates to the protective devices of burnt gas wall hanging furnace, more particularly to a kind of gas leakage alarm protective device
And wall-hung boiler.
Background technique
In recent years, China's gas explosion Frequent Accidents, casualty loss are heavy.And gas accidents are concentrated mainly on interior, occupy
People's indoor security accident number accounting highest and be in cumulative year after year state, family, China gas safe situation is increasingly severe.For a long time with
Come, people are always extremely concerned about safely home environment.The detection of combustion gas and alert process are to ensure that Domestic gas safety
One of effective way, while being also the important component of home safety protection.Traditional-family's gas alarm currently on the market
Device only has simple gas alarm function, internal when the probe detection of fuel gas alarm has the composition of fuel gas into space
Circuit is handled, and alarm issues sound-light alarm sound, and user is reminded to have the leakage of combustion gas, so that user is handled in time, is protected
Barrier safety.There is wrong report and fail to report alert phenomenon in it, and need complicated controller to realize, and can not pass through control device in time
Gas shutoff valve is closed, and by the mixed gas of indoor fuel gas and air carry out outlet, cannot prevent to the maximum extent in
Possible trouble.
Utility model content
The utility model overcomes in the prior art, gas alarm device safety not high problem when wall-hung boiler uses,
One kind gas leakage alarm protective device structurally reasonable, easy to use and wall-hung boiler are provided.
The technical solution of the utility model is to provide a kind of gas leakage alarm protective device having following structure
And wall-hung boiler: contain gas leakage alarm driving circuit, nominal situation control circuit, alarm operating conditions circuit, blower driving
Circuit, gas shutoff valve control circuit, blower F, combined aural and visual alarm A, gas shutoff valve and MCU, wherein gas leakage alarm drives
The output end of dynamic circuit connect respectively in access nominal situation control circuit and alarm operating conditions circuit, fan drive circuit with
The output end of gas shutoff valve control circuit is connected in access nominal situation control circuit, gas leakage alarm driving circuit
In the input port of signal input part connection MCU, blower F and combined aural and visual alarm A access alarm operating conditions circuit in parallel,
The output port of MCU is separately connected the input terminal of fan drive circuit and gas shutoff valve control circuit.
The gas leakage alarm driving circuit contains power supply VCC, power supply GND, capacitor C1, diode D1, change working
Relay K1, coal gas detection switch S1, wherein after the coils from parallel connection of coils of diode D1 and change working relay K1, diode D1's
Cathode connects power supply VCC, connects power supply GND after the anode series connection coal gas detection switch S1 of diode, wherein capacitor C1 is series at
Between power supply VCC and power supply GND, coal gas detection one end switch S1 connects power supply GND, and one end connects the input port MCU_ of MCU
IN1。
The nominal situation control circuit contains alternating current 220V, change working relay K1, gas shutoff valve door P, combustion
Gas shut-off valve controls relay K2, blower F and air-blower control relay K3, wherein change working relay K1 be double-pole double throw after
After electric switch, gas shutoff valve door P and gas shutoff valve control relay K2 series connection, accessed by change working relay K1
After alternating current 220V, blower F and air-blower control relay K3 series connection, then a hilted broadsword list in the change working relay K1 that connects
Alternating current 220V is accessed after throw switch.
The alarm operating conditions circuit contains alternating current 220V, change working relay K1, blower F and combined aural and visual alarm
A, wherein combined aural and visual alarm A accesses alternating current 220V, blower F series connection change working relay by the K1 parallel connection of change working relay
Alternating current 220V is accessed after a single-pole single-throw switch (SPST) in device K1.
The gas shutoff valve control circuit contains power supply VCC, power supply GND, capacitor C2, diode D2, gas shutoff valve
Relay K2, triode Q1 and resistance R1, wherein after the coils from parallel connection of coils of diode D2 and gas shutoff valve relay K2, diode
The cathode of D2 connects power supply VCC, and the emitter of the collector of the positive connecting triode Q1 of diode, triode Q1 connects power supply
The output end MCU_OUT1 of MCU is connected after the base series resistor R1 of GND, triode Q1, wherein capacitor C2 is series at power supply VCC
Between power supply GND.
The fan drive circuit contain power supply VCC, power supply GND, capacitor C3, diode D3, air-blower control relay K3,
Triode Q2 and resistance R2, wherein after the coils from parallel connection of coils of diode D3 and gas shutoff valve relay K3, the cathode of diode D3
Power supply VCC is connected, the emitter of the collector of the positive connecting triode Q2 of diode, triode Q2 connects power supply GND, three poles
The output end MCU_OUT2 of MCU is connected after the base series resistor R2 of pipe Q2, wherein capacitor C3 is series at power supply VCC and power supply
Between GND.
A kind of wall-hung boiler containing above-mentioned gas leakage alarm protective device, wall-hung boiler inside are contained blower, controller, are followed
Ring water pipe, built-in heat exchanger, water pump, expansion tank, combustion chamber and exhaust pipe, be successively arranged on circulating water pipe built-in heat exchanger,
Water pump and expansion tank, wall hanging stove outer covering is equipped with combined aural and visual alarm and coal gas detection switchs, and the two is connected by conducting wire and controlled
Device, gas shutoff valve and proportioning valve are successively arranged on gas inlet pipe, and gas inlet pipe end connects combustion chamber, exhaust pipe one end
Combustion chamber is connected, blower is located on exhaust pipe.
Compared with prior art, the utility model gas leakage alarm protective device and wall-hung boiler have the advantage that wall
When gas leakage occurs in extension furnace, sound-light alarm can be issued at the first time, while cutting off gas shutoff valve, while wall-hung boiler blower quilt
It opens, the combustion gas that gas leakage alarm switch and wall-hung boiler are nearby revealed, which can be concentrated soon, is discharged into outdoor, prevents interior
The phenomenon that gas concentration is excessively high to cause explosion or combustion gas to be poisoned, it can be well protected the safety of life and property of indoor occupant.This
Device designs advantages of simple, can be popularized and applied to wall-hung boiler industry well, has very high market value.
Detailed description of the invention
Fig. 1 is the electrical block diagram of the utility model gas leakage alarm protective device and wall-hung boiler；
Fig. 2 is the mounting arrangements structural schematic diagram of the utility model gas leakage alarm protective device and wall-hung boiler.
Specific embodiment
The utility model gas leakage alarm protective device and wall-hung boiler are made with reference to the accompanying drawings and detailed description
It further illustrates: containing following circuits label, power supply VCC, power supply GND, capacitor C1, diode D1, change working relay in Fig. 1
The output end MCU_ of output end MCU_OUT1, MCU of input port MCU_IN1, MCU_ of device K1, coal gas detection switch S1, MCU
OUT2, alternating current 220V, change working relay K1, gas shutoff valve door P, gas shutoff valve control relay K2, blower F and
Air-blower control relay K3, combined aural and visual alarm A, capacitor C2, diode D2, gas shutoff valve relay K2, triode Q1 and electricity
Hinder R1, capacitor C3, diode D3, air-blower control relay K3, triode Q2 and resistance R2.
The circuit of gas leakage alarm protective device contain gas leakage alarm driving circuit, nominal situation control circuit,
Alarm operating conditions circuit, fan drive circuit, gas shutoff valve control circuit, blower F, combined aural and visual alarm A, gas shutoff valve
And MCU, wherein the output end of gas leakage alarm driving circuit is connected respectively accesses nominal situation control circuit and alarm operating condition
In control circuit, the output end of fan drive circuit and gas shutoff valve control circuit, which is connected, accesses nominal situation control circuit
In, the input port of the signal input part connection MCU of gas leakage alarm driving circuit, blower F and combined aural and visual alarm A are in parallel
It accesses in alarm operating conditions circuit, the output port of MCU is separately connected fan drive circuit and gas shutoff valve control circuit
Input terminal.
The gas leakage alarm driving circuit contains power supply VCC, power supply GND, capacitor C1, diode D1, change working
Relay K1, coal gas detection switch S1, wherein after the coils from parallel connection of coils of diode D1 and change working relay K1, diode D1's
Cathode connects power supply VCC, connects power supply GND after the anode series connection coal gas detection switch S1 of diode, wherein capacitor C1 is series at
Between power supply VCC and power supply GND, coal gas detection one end switch S1 connects power supply GND, and one end connects the input port MCU_ of MCU
IN1。
After gas leakage, coal gas detection switch S1 is able to detect that in air that gas concentration is exceeded, and internal switch is led
Logical, when no gas leakage, internal switch is disconnected, and coal gas detection switch S1 is UC-KT-2010 type combustible gas probe,
Mainly it is made of sensor, signal processing circuit board and flameproof enclosure.Detector is fixedly mounted on oil depot, liquefied gas station, spray painting
Workshop, combustion gas with the fuel gas production such as defeated, the indoor and outdoors hazardous area such as use and store, export: switching value, the response time:
≤ 30s, power consumption :≤3W, service life: >=2 years, operating temperature: -40~70 DEG C, working relative humidity :≤95%RH, overall dimensions:
128mm × 89mm × 110mm, weight: 1kg.
The nominal situation control circuit contains alternating current 220V, change working relay K1, gas shutoff valve door P, combustion
Gas shut-off valve controls relay K2, blower F and air-blower control relay K3, wherein change working relay K1 be double-pole double throw after
After electric switch, gas shutoff valve door P and gas shutoff valve control relay K2 series connection, accessed by change working relay K1
After alternating current 220V, blower F and air-blower control relay K3 series connection, then a hilted broadsword list in the change working relay K1 that connects
Alternating current 220V is accessed after throw switch.
Change working relay K1 be dpdt relay switch, when there is electric current driving on its coil, the 1st contact with
The conducting of 3rd contact, the 2nd contact is connected with the 5th contact；When no current on relay coil, the 1st contact is connected with the 4th contact,
2nd contact is connected with the 6th contact.Gas shutoff valve door P is the shut-off valve of 220V AC power source control, when there is power input,
End valve events and opens fuel gas pipeline；When non-transformer input when, shut-off valve attonity and close fuel gas pipeline.
The alarm operating conditions circuit contains alternating current 220V, change working relay K1, blower F and combined aural and visual alarm
A, wherein combined aural and visual alarm A accesses alternating current 220V, blower F series connection change working relay by the K1 parallel connection of change working relay
Alternating current 220V is accessed after a single-pole single-throw switch (SPST) in device K1.
Blower F is the blower of 220V AC power source control, and when there is plant-grid connection, blower F is opened, by room air and combustion
Oxygen mixture discharge；When non-transformer input, blower F is closed.Combined aural and visual alarm A is the alarm of 220V AC power source control
Device, when there is plant-grid connection, the flashing of combined aural and visual alarm A indicator light is simultaneously emitted by alarm sound；When non-transformer access, acousto-optic
Alarm A is closed, no alarm signal output.
The gas shutoff valve control circuit contains power supply VCC, power supply GND, capacitor C2, diode D2, gas shutoff valve
Relay K2, triode Q1 and resistance R1, wherein after the coils from parallel connection of coils of diode D2 and gas shutoff valve relay K2, diode
The cathode of D2 connects power supply VCC, and the emitter of the collector of the positive connecting triode Q1 of diode, triode Q1 connects power supply
The output end MCU_OUT1 of MCU is connected after the base series resistor R1 of GND, triode Q1, wherein capacitor C2 is series at power supply VCC
Between power supply GND.
When no gas leakage, combined aural and visual alarm a-power supply is turned off, will not acousto-optic alarm, at this time gas shutoff valve and
Blower F is controlled by processor MCU；When there is gas leakage, blower F and combined aural and visual alarm A are directly connected to alternating current 220V electricity
Source, blower F rotation, combined aural and visual alarm A sound-light alarm, while gas shutoff valve power supply is cut off, gas shutoff valve is closed.
When no gas leakage, two pins of controller are controlled respectively by two independent single-pole single-throw(SPST relay switches
Blower F work once electrified processed and gas shutoff valve door P work once electrified.When needing to open gas shutoff valve door P, controller
MCU_OUT1 pin exports high level, control gas shutoff valve relay K2 conducting, to access 220V for gas shutoff valve door P
AC power source；When needing to close gas shutoff valve door P, the MCU_OUT1 pin of controller exports low level, controls combustion gas
End valve relay K2 shutdown, to disconnect the 220V AC power source of gas shutoff valve door P.
The fan drive circuit contain power supply VCC, power supply GND, capacitor C3, diode D3, air-blower control relay K3,
Triode Q2 and resistance R2, wherein after the coils from parallel connection of coils of diode D3 and gas shutoff valve relay K3, the cathode of diode D3
Power supply VCC is connected, the emitter of the collector of the positive connecting triode Q2 of diode, triode Q2 connects power supply GND, three poles
The output end MCU_OUT2 of MCU is connected after the base series resistor R2 of pipe Q2, wherein capacitor C3 is series at power supply VCC and power supply
Between GND.
When burnt gas wall hanging furnace works normally, when needing to open blower F, the MCU_ of the Micro-processor MCV on controller
OUT2 pin exports high level, control air-blower control relay K3 conducting, to access 220V AC power source for blower F；When need
When closing blower F, the MCU_OUT2 pin of controller exports low level, and control air-blower control relay K3 is turned off, thus
Blower F is accessed without 220V AC power source；
Label 1 is wall-hung boiler in Fig. 2, and 2 be blower, and 3 be gas shutoff valve, and 4 be combined aural and visual alarm, and 5 be that coal gas detection is opened
It closes, 6 be controller, and 7 be exhaust pipe.
A kind of wall-hung boiler 1 comprising above-mentioned gas leakage alarm protective device contains blower 2, controller inside wall-hung boiler 1
6, circulating water pipe, built-in heat exchanger, water pump, expansion tank, combustion chamber and exhaust pipe 7 are successively arranged interior displacement on circulating water pipe
Hot device, water pump and expansion tank, built-in heat exchanger connect external radiator by circulating water pipe, and built-in heat exchanger is by gas in burner hearth
After the heat of volumetric combustion is transmitted to external radiator by circulating water pipe, the heat that sheds is for people to use.It is set on 1 shell of wall-hung boiler
Sound light crossing-signal 4 and coal gas detection switch 5, the two pass through wire connection controller 6, are successively arranged combustion gas on gas inlet pipe
Shut-off valve 3 and proportioning valve, gas inlet pipe end connect combustion chamber, and 7 one end of exhaust pipe connects combustion chamber, and blower 2 is located at exhaust
On pipe 7, the gas after burning is sent to outdoor by exhaust pipe 7 by blower 2.
Claims (7)
1. a kind of gas leakage alarm protective device, it is characterised in that: contain gas leakage alarm driving circuit, nominal situation control
Circuit processed, alarm operating conditions circuit, fan drive circuit, gas shutoff valve control circuit, blower F, combined aural and visual alarm A, combustion
Gas shut-off valve and MCU, wherein the output end of gas leakage alarm driving circuit connect respectively access nominal situation control circuit and
It alarms in operating conditions circuit, the output end of fan drive circuit and gas shutoff valve control circuit, which is connected, accesses nominal situation
In control circuit, the signal input part of gas leakage alarm driving circuit connects the input port of MCU, blower F and sound-light alarm
Device A parallel connection accesses in alarm operating conditions circuit, the output port of MCU is separately connected fan drive circuit and gas shutoff valve
The input terminal of control circuit.
2. gas leakage alarm protective device according to claim 1, it is characterised in that: the gas leakage alarm driving
Circuit contains power supply VCC, power supply GND, capacitor C1, diode D1, change working relay K1, coal gas detection switch S1, wherein
After the coils from parallel connection of coils of diode D1 and change working relay K1, the cathode of diode D1 connects power supply VCC, the anode of diode
Power supply GND is connected after series connection coal gas detection switch S1, wherein capacitor C1 is series between power supply VCC and power supply GND, coal gas detection
The one end switch S1 connects power supply GND, and one end connects the input port MCU_IN1 of MCU.
3. gas leakage alarm protective device according to claim 1, it is characterised in that: the nominal situation control circuit
Containing alternating current 220V, change working relay K1, gas shutoff valve door P, gas shutoff valve control relay K2, blower F and
Air-blower control relay K3, wherein change working relay K1 is dpdt relay switch, gas shutoff valve door P and combustion gas
After shut-off valve controls relay K2 series connection, alternating current 220V is accessed by change working relay K1, blower F and air-blower control after
Alternating current 220V is accessed after a single-pole single-throw switch (SPST) after electric appliance K3 series connection, then in the change working relay K1 that connects.
4. gas leakage alarm protective device according to claim 1, it is characterised in that: the alarm operating conditions circuit
Containing alternating current 220V, change working relay K1, blower F and combined aural and visual alarm A, wherein combined aural and visual alarm A is turned by operating condition
After changing a single-pole single-throw switch (SPST) in relay K1 parallel connection access alternating current 220V, blower F series connection change working relay K1
Access alternating current 220V.
5. gas leakage alarm protective device according to claim 1, it is characterised in that: the gas shutoff valve control electricity
Power supply VCC, power supply GND, capacitor C2, diode D2, gas shutoff valve relay K2, triode Q1 and resistance R1 are contained in road,
After the coils from parallel connection of coils of middle diode D2 and gas shutoff valve relay K2, the cathode of diode D2 connects power supply VCC, diode
The emitter of the collector of positive connecting triode Q1, triode Q1 connects power supply GND, the base series resistor R1 of triode Q1
The output end MCU_OUT1 of MCU is connected afterwards, and wherein capacitor C2 is series between power supply VCC and power supply GND.
6. gas leakage alarm protective device according to claim 1, it is characterised in that: the fan drive circuit contains
Power supply VCC, power supply GND, capacitor C3, diode D3, air-blower control relay K3, triode Q2 and resistance R2, wherein diode
After the coils from parallel connection of coils of D3 and gas shutoff valve relay K3, the cathode of diode D3 connects power supply VCC, the anode connection of diode
The collector of triode Q2, the emitter of triode Q2 connect power supply GND, connect after the base series resistor R2 of triode Q2
The output end MCU_OUT2 of MCU, wherein capacitor C3 is series between power supply VCC and power supply GND.
7. a kind of wall-hung boiler containing gas leakage alarm protective device described in claim 1, blower, control are contained in wall-hung boiler inside
Device, circulating water pipe, built-in heat exchanger, water pump, expansion tank, combustion chamber and exhaust pipe processed, it is characterised in that: on circulating water pipe according to
Secondary to be equipped with built-in heat exchanger, water pump and expansion tank, wall hanging stove outer covering is equipped with combined aural and visual alarm and coal gas detection switchs, the two
By wire connection controller, gas shutoff valve and proportioning valve, the connection of gas inlet pipe end are successively arranged on gas inlet pipe
Combustion chamber, exhaust pipe one end connect combustion chamber, and blower is located on exhaust pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822084973.4U CN209248731U (en) | 2018-12-12 | 2018-12-12 | A kind of gas leakage alarm protective device and wall-hung boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822084973.4U CN209248731U (en) | 2018-12-12 | 2018-12-12 | A kind of gas leakage alarm protective device and wall-hung boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209248731U true CN209248731U (en) | 2019-08-13 |
Family
ID=67532605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822084973.4U Expired - Fee Related CN209248731U (en) | 2018-12-12 | 2018-12-12 | A kind of gas leakage alarm protective device and wall-hung boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209248731U (en) |
-
2018
- 2018-12-12 CN CN201822084973.4U patent/CN209248731U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190813 Termination date: 20211212 |