CN2458554Y

CN2458554Y - Closed air inlet and exhaust device for gas burning water heater

Info

Publication number: CN2458554Y
Application number: CN 00266900
Authority: CN
Inventors: 周妙荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-22
Filing date: 2000-12-22
Publication date: 2001-11-07
Anticipated expiration: 2010-12-22

Abstract

The utility model relates to an enclosed air intake and exhaust device for a gas water heater, which comprises an air chamber for a water heater. The utility model is characterized in that the air chamber is an enclosed housing body, an air intake and air exhaust port are only reserved, and the air intake and the air exhaust port are both led outside a wall; a combustion chamber is positioned in the air chamber. With the use of the utility model, the accident of gas poisoning of the gas water heater can be reliably prevented and avoided.

Description

The closed air inlet and outlet device of gas heater

The utility model relates to the closed air inlet and outlet device of a kind of gas heater, particularly gas heater.

Gas heater has extensively entered average family, it is comfortable and convenient to have brought to daily life, yet the exhaust efficiency of gas heater is low and the down draught problem is but perplexing users all the time, even can cause stagnating indoor and pouring in down a chimney the incident of being poisoned to death taking place because of combustion gas, so become the problem that presses for solution, for this reason, released a kind of full-automatic gas-fired water heater of forced exhaust formula in the market, this product is the down draught phenomenon that takes place when preventing the water heater use, adopt the air exhauster forced exhaust, when if wind-force still has down draught greatly, then rely on the device in the water heater to cut off combustion gas automatically, treat that wind refires later, the problem and the defective of its existence are: A, the cost height causes price to exceed common water heater 1/3rd to 1/2nd nearly.B, damage easily.Frequently cut off when wind is big, light, to be that gas heater is big avoid this situation.Though C utilizes the air exhauster forced exhaust, but still can't block down draught.D, can't solve the anti-down draught problem of existing other kind gas heater of user.The applicant proposes the waste gas exhausting device and the anti-down draught exhaust apparatus of gas heater in ZL00216131.1 and ZL00216132.X, overcome above-mentioned defective, cooperate on the existing gas heater and use, can improve exhausting waste gas efficient effectively and prevent that waste gas from blowing back into indoor, from toxic emission, controlled, avoided the anoxic that gas heater causes or the generation of combustion gas intoxication accident.

The purpose of this utility model provides the closed air inlet and outlet device of a kind of gas heater, and it can be in above-mentioned avoiding on anoxic or the poisoning basis, prevents and avoid the anoxic that gas heater causes or the generation of intoxication accident more reliably.

The purpose of this utility model realizes by following technical scheme.The closed air inlet and outlet device of gas heater comprises the air chamber of water heater, and described air chamber only leaves air inlet and exhaust outlet all to pass to outside the wall for the housing of sealing, and the combustion chamber is positioned at air chamber.Described air inlet passes to wall: the air inlet of air chamber is connected on the inlet box through air inlet pipe, and inlet box is interlinked to the outside through porthole and wall, and screen pack is housed in porthole.Described exhaust outlet passes to wall: the exhaust outlet of air chamber passes outside the wall through blast pipe, from porthole, links to each other with exhausting device.Described anti-down wind apparatus comprises body, exhaust skylight, check valve sheet, baffle plate, baffle plate is inclined in the body, has steam vent on the baffle plate, the baffle plate top is hung with check valve sheet, on check valve sheet, have push rod and pass this steam vent, on the body inwards of baffle plate top, have the exhaust skylight, comprise fenestra and cover plate, cover plate is articulated on the body, this fenestra of capping.The utility model adopts the air chamber of sealing that itself and air in the room are completely cut off, combustion gas waste gas can only be discharged from exhaust outlet, in the atmosphere, the wall outer air can only enter air chamber from air inlet outside exhausting device is discharged to wall, thereby can not influence air quality in the room.The down draught device is housed guarantees can make the check valve sheet closure when rather windy falling, cover plate is opened, to keep entering of exhaust gas discharging and fresh air.Exhausting device is housed to improve exhaust efficiency.Controlled from air inlet, two aspects of exhaust, more thoroughly prevented that anoxic or combustion gas poison, reached the purpose of personal safety.

In sum, the air chamber of the utility model employing sealing and air inlet, exhaust structure all lead to outdoor, make in the combustion chamber of burning in the air chamber of sealing and carry out, and be equipped with exhausting device and anti-down wind apparatus, make the air in combustion gas waste gas and the room isolated, be easy to discharging, under extremely abominable inlet and outlet condition, also can avoid combustion gas waste gas to stagnate or be emitted in the room, fundamentally solve anoxic or combustion gas poisoning problem that gas heater causes.

With embodiment the utility model is done concrete introduction below in conjunction with accompanying drawing.

Fig. 1 is a structural representation of the present utility model,

Fig. 2 is anti-down wind apparatus schematic diagram.

Code name among the figure: 10 gas heaters, 11 spool parts, 12 air chambers, 13 combustion chambers, 14 air inlets, 15 exhaust outlets, 20 air inlet pipe, 21 inlet boxs, 22 airstrainers, 23 portholes, 30 anti-down wind apparatus 31 blast pipes 32 baffle plates 33 steam vents 34 cover plates 35 fenestras 36 check valve sheet 36A push rods 37 bodys 40 exhausting devices

As Fig. 1, the utility model gas heater 10 comprises air chamber 12, air chamber 12 is the housing of sealing, its volume can increase general combustion chamber, only leave air inlet 14 and exhaust outlet 15, all pass to outside the wall, combustion chamber 13 is housed in the air chamber 12, the below is a spool part 11, and exhausting device 40 is housed outside wall.Air inlet 14 is connected on the inlet box 21 through air inlet pipe 20, and inlet box 21 communicates with atmosphere outside the wall through porthole 23, screen pack 22 is housed in porthole 23 is used for filtered air.Exhaust outlet 15 passes from porthole outside the wall through blast pipe 31, anti-down wind apparatus 30, interlinks with exhausting device 40.As Fig. 2, anti-down wind apparatus comprises body 37, exhaust skylight, check valve sheet 36, baffle plate 32, baffle plate 32 is inclined in the body, has steam vent 33 on the baffle plate 32, the baffle plate top is hung with check valve sheet 36, has push rod and pass this steam vent 33 on check valve sheet 36, has the exhaust skylight on the body inwards of baffle plate top, comprise fenestra 35 and cover plate 34, cover plate 34 is articulated in this fenestra 35 of body 37 upper covers.This anti-down wind apparatus 30 passes inlet box 21, porthole 23 and airstrainer 22, and be supported on this airstrainer 22, when air inlet pipe 20 and blast pipe 31 pass wall in the present embodiment, can be respectively with a porthole, but also the two shared porthole 23, as shown in Figure 1.When normal use, the wall outer air is passed from porthole 23 through filter screen 22, through inlet box 21 air inlet pipe 20, enter air chamber 12 from air inlet 14, through 13 burning backs, combustion chamber outside the steam vent 33 of exhaust outlet 15 through blast pipe 31, anti-down wind apparatus 30, exhausting device 40 discharge walls in the atmosphere.As Fig. 2, when down draught, down draught K promotes check valve sheet 36, with 33 sealings of the steam vent on the baffle plate 32, push rod 36A backs down cover plate 34, and waste gas M is discharged from fenestra 35, when down draught reduces, check valve sheet 36 is by from reopening, and cover plate 34 falls by deadweight and closes, from steam vent 33 normal combustion gas M.

Claims

1, the closed air inlet and outlet device of gas heater, it is characterized in that: it comprises air chamber, and described air chamber only leaves air inlet and exhaust outlet all to pass to outside the wall for the housing of sealing, and the combustion chamber is positioned at air chamber.

2, the closed air inlet and outlet device of gas heater according to claim 1, it is characterized in that: described air inlet passes to wall and is outward: the air inlet of air chamber is connected on the inlet box through air inlet pipe, inlet box is interlinked to the outside through porthole and wall, and screen pack is housed in porthole.

3, the closed air inlet and outlet device of gas heater according to claim 1 and 2 is characterized in that: described exhaust outlet passes to wall and is outward: the exhaust outlet of air chamber passes outside the wall through blast pipe, from porthole, links to each other with exhausting device.

4, the closed air inlet and outlet device of gas heater according to claim 3 is characterized in that: anti-down wind apparatus is housed between blast pipe and exhausting device.

5, the closed air inlet and outlet device of gas heater according to claim 4, it is characterized in that: described anti-down wind apparatus comprises body, exhaust skylight, check valve sheet, baffle plate, baffle plate is inclined in the body, has steam vent on the baffle plate, the baffle plate top is hung with check valve sheet, has push rod and pass this steam vent on check valve sheet, has the exhaust skylight on the body inwards of baffle plate top, comprise fenestra and cover plate, cover plate is articulated in this fenestra of body upper cover.

6, the closed air inlet and outlet device of gas heater according to claim 5 is characterized in that: described anti-down wind apparatus is porthole and the screen pack that passes inlet box, inlet box, and is bearing in the screen pack.