CN208779726U - A kind of gas heater for monitoring blower and entering air quantity - Google Patents

Abstract

The utility model discloses one kind can monitor the gas heater that blower enters air quantity, the middle part of shell is equipped with burner, the upside of burner is equipped with heat exchanger, the top of burner is connect by hood with smoke exhaust pipe, the top of heat exchanger side is connected by the hot water outlet of hot-water line and housing bottom, the lower part of the heat exchanger other side is connected by the cold water inlet of cold water pipe and housing bottom, one end on the downside of burner is connected with blower by discharge pipe, the other end on the downside of burner is connected by the fuel gas inlet of fuel gas conduit and housing bottom, the side of burner is additionally provided with igniter, the Gas inlet tube of blower is equipped with air flow sensor；The side of burner is additionally provided with the flame current sensing device for detecting flame ion electric current.The utility model guarantees that burning sufficiently, keeps low useless discharge, reduces the destruction to atmospheric environment, improve product reliability by reaching real-time stabilization combustion state to the real time monitoring for entering air quantity and flame ion electric current.

Description

A kind of gas heater for monitoring blower and entering air quantity

Technical field

The utility model relates to a kind of water heaters, can monitor the combustion gas heat that blower enters air quantity more particularly to one kind Hydrophone.

Background technique

Current market sales of gas heater, is easy to appear the wind pressure as caused by environmentally factor or air quantity is excessive, Or flue blockage or the too long caused combustion system air-fuel ratio of smoke pipe length match offset, the phenomenon of combustion conditions exception, shadow Efficiency of combustion is rung, exhaust gas discharge beyond standards cause the serious problems such as the pollution to surrounding air.

Utility model content

The purpose of the utility model is to provide one kind when combustion conditions are bad, remains to the combustion gas in good combustion state Water heater reduces discharge amount of exhaust gas to improve efficiency of combustion, reduces and destroys to ambient air quality, improves product reliability.

To achieve the goals above, the utility model uses following technical scheme:

The middle part of a kind of gas heater for monitoring blower and entering air quantity, including shell, the shell is equipped with burner, institute The upside for stating burner is equipped with heat exchanger, and the top of the burner is connect by hood with smoke exhaust pipe, the heat exchanger one The top of side is connected by the hot water outlet of hot-water line and housing bottom, the lower part of the heat exchanger other side by cold water pipe with The cold water inlet of housing bottom connects, and one end on the downside of the burner is connected with blower by discharge pipe, under the burner The other end of side is connected by the fuel gas inlet of fuel gas conduit and housing bottom, and the side of the burner is additionally provided with igniter, institute The Gas inlet tube for stating blower is equipped with the air flow sensor for being used for detection blower fan input air flow；The lower part of the shell is additionally provided with Controller, the controller are electrically connected with air flow sensor, blower, igniter respectively.

Wherein, the side of the burner is additionally provided with the flame current sensing device for detecting flame ion electric current, institute Flame current sensing device is stated to be electrically connected with the controller.

Wherein, it is passed on the hot-water line close to the first temperature that hot water exit is additionally provided with for detecting output hot water temperature Sensor, first temperature sensor are electrically connected with the controller.

Wherein, the ratio valve group for adjustment of combustion gas flow is connected in the middle part of the fuel gas conduit, the fuel gas conduit is located at Side in burner is equipped with nozzle, and the ratio valve group is electrically connected with the controller.

Wherein, the nozzle has multiple, and the lower part of the nozzle is also connected with branch pipe, and the branch pipe has 1.

Wherein, it is equipped with the flow sensor for detecting cold water flow close to one end of cold water inlet on the cold water pipe, The upper end of the flow sensor is located at cold water pipe equipped with the second temperature sensor for detecting cold water temperature, the flow Sensor and second temperature sensor are electrically connected with the controller respectively.

Wherein, the upper end of the second temperature sensor is located at cold water pipe equipped with the water ratio for adjusting cold water flow Valve, the water proportioning valve are electrically connected with the controller.

Wherein, the flame current sensing device is flame probe.

The utility model has the beneficial effects that the air of input blower can be monitored in real time by the air flow sensor at Gas inlet tube Air volume cooperates flame probe, reaches inhibition to be effectively monitored to entering air quantity by the revolving speed for adjusting blower The adaptation function of the fluctuation of the air quantity as caused by environment, real-time stabilization combustion system guarantee that burning sufficiently, keeps low useless discharge, The destruction to atmospheric environment is reduced, product reliability is improved.

Detailed description of the invention

Specific embodiment of the present utility model is described in further detail with reference to the accompanying drawing.

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the auto-adaptive control theory schematic diagram of the utility model.

Fig. 3 is the self adaptive flow schematic diagram of the utility model.

Specific embodiment

The technical issues of in order to solve the utility model, the technical solution of use, the technical effect of acquirement it can be readily appreciated that Below with reference to specific attached drawing, specific embodiments of the utility model will be further explained.

The gas heater that blower enters air quantity, including shell 1 can be monitored as shown in Figure 1-3, a kind of, in the shell 1 Portion is equipped with burner 5, and the upside of the burner 5 is equipped with heat exchanger 4, and the top of the burner 5 passes through hood 3 and smoke evacuation Pipe 2 connects, and the top of 4 side of heat exchanger is connect by hot-water line 18 with the hot water outlet 17 of 1 bottom of shell, and the heat is changed The lower part of 4 other side of device is connect by cold water pipe 12 with the cold water inlet 13 of 1 bottom of shell, one end of 5 downside of burner It is connected with blower 20 by discharge pipe, the other end of 5 downside of burner is entered by fuel gas conduit 14 and the combustion gas of 1 bottom of shell Mouth 15 connects, and the side of the burner 5 is additionally provided with igniter, and the Gas inlet tube 22 of the blower 20, which is equipped with, is used for detection blower fan The air flow sensor 21 of 20 input air flows；The lower part of the shell 1 is additionally provided with controller 16, the controller 16 respectively with Air flow sensor 21, blower 20, igniter electrical connection；The side of the burner 5 is additionally provided with for detecting flame ion electric current Flame current sensing device 23, the flame current sensing device 23 is electrically connected with controller 16.

Wherein, the first temperature for detecting output hot water temperature is additionally provided on the hot-water line 18 at hot water outlet 17 Sensor 19 is spent, first temperature sensor 19 is electrically connected with controller 16.

Wherein, the middle part of the fuel gas conduit 14 is connected with the ratio valve group 8 for adjustment of combustion gas flow, the fuel gas conduit 14 Side in burner 5 is equipped with nozzle 6, and the ratio valve group 8 is electrically connected with controller 16.

Wherein, the nozzle 6 has multiple, and the lower part of the nozzle 6 is also connected with branch pipe 7, and the branch pipe 7 has 1.

Wherein, the flow sensing for detecting cold water flow is equipped with close to one end of cold water inlet 13 on the cold water pipe 12 Device 11, the upper end of the flow sensor 11 are located at cold water pipe 12 equipped with the second temperature sensor for detecting cold water temperature 10, the flow sensor 11 and second temperature sensor 10 are electrically connected with controller 16 respectively.

Wherein, the upper end of the second temperature sensor 10 is located at cold water pipe 12 equipped with the water for adjusting cold water flow Proportioning valve 9, the water proportioning valve 9 are electrically connected with controller 16.

Wherein, the flame current sensing device 23 is flame probe.

Main operational principle:

Air enters from the Gas inlet tube 22 of blower 20, enters burner 5 from its discharge pipe, connects on the Gas inlet tube 22 of blower 20 It is connected to air flow sensor 21, air flow sensor 21 is used to detect the air mass flow in Gas inlet tube 22, converts thereof into electric signal simultaneously Controller 16 is passed to, controller 16 adjusts the size of air mass flow in Gas inlet tube 22 by adjusting the revolving speed of blower 20, matches Flame current sensing device 23 is closed, to effectively control the combustion conditions in burner 5；Combustion gas from fuel gas inlet 15 enter than Example valve group 8 is calculated to obtain appropriate target flow through nozzle 6 into burner 5 by software, and air and combustion gas enter burner 5 Interior mixing, through igniter high-voltage arc pilot combustion, the exhaust gas that fuel gas buring generates is discharged by smoke exhaust pipe 2；It is set in burner 5 There is flame current sensing device 23, passes controller back for detecting flame ion current intensity, and by flame ion current signal 16, determine whether combustion conditions meet good combustion range by controller 16, by adjusting air mass flow, reaches inhibition by ring The adaptation function of the fluctuation of air quantity caused by border, real-time stabilization combustion system guarantee that burning sufficiently, keeps low useless discharge, reduce Destruction to air solves water heater and changes to external air quantity, the difference of height above sea level, smoke pipe installation, the difference etc. of length Generated abnormal combustion problem improves product reliability.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should It is subject to the protection scope in claims.

Claims (7)

1. one kind can monitor the gas heater that blower enters air quantity, including shell, it is characterised in that: the middle part of the shell is equipped with Burner, the upside of the burner are equipped with heat exchanger, and the top of the burner is connect by hood with smoke exhaust pipe, described The top of heat exchanger side is connected by the hot water outlet of hot-water line and housing bottom, and the lower part of the heat exchanger other side passes through The cold water inlet of cold water pipe and housing bottom connects, and one end on the downside of the burner is connected with blower by discharge pipe, described The other end on the downside of burner is connected by the fuel gas inlet of fuel gas conduit and housing bottom, and the side of the burner is additionally provided with a little Firearm, the Gas inlet tube of the blower are equipped with the air flow sensor for detection blower fan input air flow；Under the shell Portion is additionally provided with controller, and the controller is electrically connected with air flow sensor, blower, igniter respectively；The side of the burner It is additionally provided with the flame current sensing device for detecting flame ion electric current, the flame current sensing device is electrically connected with controller It connects.

2. gas heater according to claim 1, it is characterised in that: also set on the hot-water line close to hot water exit There is the first temperature sensor for detecting output hot water temperature, first temperature sensor is electrically connected with the controller.

3. gas heater according to claim 1, it is characterised in that: be connected in the middle part of the fuel gas conduit for adjusting The ratio valve group of gas flow, the fuel gas conduit are located at the side in burner equipped with nozzle, the ratio valve group and controller Electrical connection.

4. gas heater according to claim 3, it is characterised in that: the nozzle has multiple, the lower part of the nozzle It is also connected with branch pipe, the branch pipe has 1.

5. gas heater according to claim 1, it is characterised in that: close to one end of cold water inlet on the cold water pipe Equipped with the flow sensor for detecting cold water flow, the upper end of the flow sensor is located at cold water pipe and is equipped with for detecting The second temperature sensor of cold water temperature, the flow sensor and second temperature sensor are electrically connected with the controller respectively.

6. gas heater according to claim 5, it is characterised in that: the upper end of the second temperature sensor is located at cold Water pipe is equipped with the water proportioning valve for adjusting cold water flow, and the water proportioning valve is electrically connected with the controller.

7. gas heater according to claim 1, it is characterised in that: the flame current sensing device is flame spy Needle.