CN2566185Y - Choke draught device for gas water heater - Google Patents

Abstract

The utility model relates to an air blocking and gas pulling device for a gas combustion water heater. The utility model is characterized in that the utility model comprises a main exhaust pipe, an upper exhaust pipe and a lower exhaust pipe, wherein, one end of the upper exhaust pipe is connected with the outlet end of the main exhaust pipe by a suspension loop, the upper exhaust pipe and the main exhaust pipe can rotate in the range of 90 DEG, and the wall of one end of the upper exhaust pipe is provided with a hole opening which is matched with the diameter of the main exhaust pipe. When the upper exhaust pipe is in the state which is perpendicular to the main exhaust pipe, the hole opening is anastomotic with the outer circle of the main exhaust pipe. The lower exhaust pipe is sheathed in the upper exhaust pipe, one end of the lower exhaust pipe is also provided with a hole opening which is matched with the diameter of the main exhaust pipe, and the joint between the end part of the upper exhaust pipe and the end of the lower exhaust pipe is provided with a fixing device. The gas pulling device of the utility model can be arranged indoors, and solve the difficulty of the outdoor installation of a T-shaped gas pulling device of a building. The utility model is suitable for the units of a family, an apartment, a school, etc.

Description

A kind of gas heater choke draught device

Technical field

The utility model relates to a kind of exhaust emission device, particularly a kind of gas heater choke draught device.

Background technology

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 applicant also once disclosed the closed air inlet and outlet device of a kind of gas heater in patent ZL00266900.5, can prevent and avoid the anoxic that gas heater causes or the generation of intoxication accident reliably.The outdoor exhaust outlet of each gas heater all adopts exhaust performance to pull out the gas chimney preferably at present, promptly adorns one vertically at the outdoor exhaust outlet place and pulls out tracheae, makes blast pipe become the T type, plays choke and pulls out the gas effect.But, this pull out tracheae be positioned at outdoor, must be in outdoor mounted, when using as building, it constructs dangerous, difficulty is bigger.

The utility model content

The purpose of this utility model provides a kind of gas heater choke draught device, have the problem that choke pulls out the dangerous difficulty of installation of tracheae now to solve, and the utility model is simple in structure quick for installation.

The purpose of this utility model realizes by following technical scheme.A kind of gas heater choke draught device, it is characterized in that: it comprises main exhaust, last blast pipe, following blast pipe, a described end of going up blast pipe is connected with hangers with the port of export of main exhaust, make blast pipe and main exhaust spend the scope turns 90, on described on the wall of blast pipe one end, have the aperture that cooperates with the main exhaust diameter, when blast pipe being positioned at become plumbness with main exhaust, described aperture and main exhaust cylindrical match; Described blast pipe encapsulation down in the blast pipe, also has the aperture of matching with the main exhaust diameter at the one end on described, the joint between between last blast pipe end and following exhaust pipe end has fixture.Being shaped as of described each aperture has semicircle mouthful that matches with the main exhaust outer surface.The fixture of joint is between blast pipe and the following blast pipe on described: the mouth of pipe that all has back taper at the joint of upper and lower blast pipe.The described cross sectional shape of going up blast pipe and following blast pipe is: a face is the plane in its cross section, and open on described plane in described aperture.

The utility model adopts the split of T type to pull out tracheae, with the blast pipe that solves whole T type structure from indoor difficult installation, from the problem of outdoor mounted danger, difficulty, adopt at the port of export of main exhaust to connect an end of blast pipe on this with articulated form, following exhaust shroud is contained in the blast pipe.Like this, three blast pipes can be lined up the hole of horizontal direction from wall and be stretched out, rotate after stretching out, blast pipe is gone to and the main exhaust upright position by deadweight around this hangers, the semicircle orifice of blast pipe end is installed on the blast pipe outer surface just on this moment, and then continuation turnback, blast pipe is also fallen from last blast pipe by deadweight, on keeping to the side, fixture between the following blast pipe will go up, following blast pipe connects, this at present semicircle mouthful on the blast pipe also be positioned on another semicircle outer surface of main exhaust just, pull out feed channel thereby formed outdoor T type.

In sum, the utility model has been owing to adopted split type structure, makes the vapour lock wind apparatus that pulls out of this T type can be from indoor installation, solved the difficulty of building outdoor mounted and dangerous, and the utility model is simple in structure quick for installation.

Description of drawings:

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

Fig. 2 is the A-A cutaway view among Fig. 1,

Fig. 3 is the B-B cutaway view among Fig. 1,

Fig. 4 to 7 is a scheme of installation of the present utility model.

The semicircle mouthful 2 fixture 2A of blast pipe 1A, semicircle mouthful of 4 hangers, 5 main exhausts, 6 filter screens of 3 times blast pipe 3A of the 2B back taper mouth of pipe 7 walls in the number in the figure explanation 1

Embodiment

As Fig. 1,2,3, the utility model comprises main exhaust 5, last blast pipe 1, following blast pipe 3, the port of export 5A of the lower end of last blast pipe 1 and main exhaust 5 is hinged with hangers 4, make on this blast pipe 1 and the main exhaust 5 can be in 90 degree scope turns, on the wall of the lower end of last blast pipe 1, have the aperture that cooperates with main exhaust 5 diameters, be semicircle mouthful 1A herein, when last blast pipe 1 is positioned at 5 one-tenth plumbness of main exhaust, this semicircle mouth 1A and main exhaust 5 cylindricals match, and following blast pipe 3 encapsulations arrive Fig. 6 referring to Fig. 4 in last blast pipe 1, also have the aperture that cooperates with main exhaust 5 diameters in the top, be semicircle mouthful 3A herein.Joint between last blast pipe 1 and following blast pipe 3 has fixture 2, and the fixture that adopts in the present embodiment is for all having back taper mouth of pipe 2A, the 2B of cooperation on upper and lower blast pipe 1,3.The cross sectional shape of last blast pipe 1 and following blast pipe 3 is: it is the plane that a face is arranged in the cross section, and in the present embodiment, the cross section of upper and lower blast pipe 1,3 is the arch cross section that has plane 1B and 3B, and semicircle mouthful 1A, a 3A open on this plane 1B, 3B.The port of export at upper and lower blast pipe 1,3 all has filter screen 6.As Fig. 4 to 7 is scheme of installation, when installing, as Fig. 4, in the hole of wall 7 the utility model is sent earlier, and this moment, hangers 4 axis were vertical.Then as Fig. 5, main exhaust 5 revolved turn 90 degrees, make hangers 4 axis be in level, then go up blast pipe 1 and change down around hangers 4 axis.As Fig. 6, last blast pipe 1 is held on main exhaust 5 outer surfaces from semicircle mouthful of 1A anastomosis clamp.With main exhaust turnback again, the following blast pipe 3 that then is sleeved in the blast pipe 1 falls from last blast pipe 1, by fixture 2 it is connected with last blast pipe 1, its semicircle mouthful 3A coincide on the outer surface of main exhaust 5, forms exhausting device shown in Figure 7.

Claims (5)

1, a kind of gas heater choke draught device, it is characterized in that: it comprises main exhaust, last blast pipe, following blast pipe, a described end of going up blast pipe is connected with hangers with the port of export of main exhaust, make blast pipe and main exhaust spend the scope turns 90, on described on the wall of blast pipe one end, have the aperture that cooperates with the main exhaust diameter, when blast pipe being positioned at become plumbness with main exhaust, described aperture and main exhaust cylindrical match; Described blast pipe encapsulation down in the blast pipe, also has the aperture of matching with the main exhaust diameter at the one end on described, the joint between between last blast pipe end and following exhaust pipe end has fixture.

2, a kind of gas heater choke draught device according to claim 1 is characterized in that: being shaped as of described each aperture has semicircle mouthful that matches with the main exhaust outer surface.

3, a kind of gas heater choke draught device according to claim 1 and 2 is characterized in that: the fixture of joint is between blast pipe and the following blast pipe on described: the mouth of pipe that all has back taper at the joint of upper and lower blast pipe.

4, a kind of gas heater choke draught device according to claim 1 and 2 is characterized in that: the described cross sectional shape of going up blast pipe and following blast pipe is: a face is the plane in its cross section, and open on described plane in described aperture.

5, a kind of gas heater choke draught device according to claim 1 and 2 is characterized in that: the port of export at last blast pipe and following blast pipe all has filter screen.

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