CN217542299U

CN217542299U - Boiler smoke box air tightness test device

Info

Publication number: CN217542299U
Application number: CN202221780773.2U
Authority: CN
Inventors: 冯坤; 田志坚; 冯锦超; 冯高领; 冯培亮; 刘立方; 马宗光; 冯威; 程何康; 梁坤龙
Original assignee: Henan Zhixin Boiler Technology Innovation Co ltd
Current assignee: Henan Zhixin Boiler Technology Innovation Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-10-04
Anticipated expiration: 2032-07-11

Abstract

The utility model relates to an air-tight test technical field specifically is a boiler smoke box air-tight test device, including air-blower and smoke box body, the air-out end of air-blower is connected with first guide duct, and the flue gas access connection has the connecting pipe, and the one end that the smoke box body was kept away from to the connecting pipe is equipped with the butterfly valve, and one side that the connecting pipe was kept away from to the butterfly valve is connected with the second guide duct, and the one end that the butterfly valve was kept away from to the second guide duct is connected with first guide duct through the damping festival. This boiler smoke box gas tightness test device, through the air-blower to this internal input of smoke box impurity-free air or the gas of taking the colour, the measurement personnel can judge whether the smoke box leaks gas through the change of manometer numerical value, when the gas of taking the colour is taken in the input, the gas of taking the colour can appear in the position that takes place to leak gas, when inputing impurity-free air, measurement personnel can spray soapy water at each gas tightness inspection position, the bubble can appear in the gas leakage position, thereby be convenient for measurement personnel quick positioning gas leakage position.

Description

Boiler smoke box air tightness test device

Technical Field

The utility model relates to an air-tight test technical field specifically is a boiler smoke box air-tight test device.

Background

Horizontal internal combustion gas boiler is operated under the positive pressure state, therefore, the boiler smoke box door is required to have good heat insulation performance and sealing performance, if there is a leakage point after the boiler is assembled, the smoke can be leaked out in the operation process, because the main component of natural gas is methane CH4, and contain trace sulfur, can produce a large amount of vapor and trace sulfur dioxide, sulfur trioxide in the combustion process, the gas boiler smoke carries the vapor to meet the external low-temperature environment from the process that the leakage point leaks out, and can be condensed into liquid water, wherein trace sulfur dioxide, sulfur trioxide and other corrosive gases in the smoke can be dissolved in the condensed moisture to form acid liquor, cause corrosion to metal materials, especially the smoke carries the vapor to permeate into the heat preservation laid by materials such as external aluminum silicate, the aluminum silicate fiber board can be in the moist state, the moist aluminum silicate can accelerate the corrosion of steel contacted with the aluminum silicate, and thus the service life of the gas boiler can be greatly shortened.

The leaked flue gas can also pollute the environment in the boiler room and cause harm to the health of operators; harmful gas nitrogen oxides generated by burning natural gas are harmful to the environment, fuel which is not burnt out can be contained in flue gas, and if the concentration of the fuel in a boiler room reaches a certain degree, explosion danger can occur, so that potential safety hazards exist; the high temperature of leaking smoke makes the boiler smoke box warp, influences the boiler safe operation, so gas boiler in the equipment process, need carry out whole air leakage test before laying in the heat preservation, and the gas tightness test is extremely important to guaranteeing gas boiler's normal operating and increase of service life.

The patent number is CN 214334157U's patent discloses a gas tightness detection device for boiler, including seal chamber and boiler aerating device, boiler aerating device links to each other through the boiler air inlet that awaits measuring in gas piping and the seal chamber, seal chamber ground is equipped with lift type brace table, slide mechanism sliding connection is passed through with the ground of seal chamber in the bottom of lift type brace table, the top of seal chamber still is equipped with indoor pressure detection display, this technical scheme has solved the problem that current one set of gas tightness detection equipment is not convenient for carry out multiple size boiler gas tightness and detects.

Although this technical scheme has solved the problem that present a set of gas tightness check out test set is not convenient for carry out multiple size boiler gas tightness and detects, this technical scheme is when carrying out the gas tightness and detects, aerify to the boiler in the seal chamber through boiler aerating device, wait to reach and predetermine the atmospheric pressure after, stop aerifing, then see the indoor pressure detection display at seal chamber top and go up the atmospheric pressure in the seal chamber and have the change and can judge whether the boiler leaks gas, this mode can only judge whether the boiler leaks gas and can not further detect which position of boiler leaks gas, in view of this, we propose a boiler smoke box gas tightness test device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a boiler smoke box air-tight test device to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a boiler smoke box air tightness test device, includes air-blower and smoke box body, the left side of smoke box body is equipped with the flue gas inlet, the right side of smoke box body and the position that is close to the top are equipped with the exhanst gas outlet, the air-out end of air-blower is connected with first guide duct, the flue gas inlet is connected with the connecting pipe, the one end that the smoke box body was kept away from to the connecting pipe is equipped with the butterfly valve, one side that the connecting pipe was kept away from to the butterfly valve is connected with the second guide duct, the one end that the butterfly valve was kept away from to the second guide duct is connected with first guide duct through the damping festival.

Preferably, the air inlet end of the blower is provided with a blower valve.

Preferably, the input of fan valve is connected with the intake pipe, the outer wall connection of intake pipe has the gaseous input tube of colour, the outer wall of the gaseous input tube of colour is equipped with the control valve.

Preferably, one end of the air inlet pipe, which is far away from the fan valve, is connected with an air filter.

Preferably, the outer wall of the connecting pipe is connected with a pressure gauge.

Preferably, the connecting pipe is connected with a flue gas inlet flange.

Compared with the prior art, the beneficial effects of the utility model are that:

according to the boiler smoke box air tightness test device, the blower is used for inputting air without impurities or gas with colors into the smoke box body, a tester can judge whether the smoke box leaks air or not through the change of the numerical value of the pressure gauge, when the gas with colors is input, if the numerical value of the pressure gauge is reduced, each air tightness checking part can be detected, the gas with colors can appear at the part where the air leakage occurs, and therefore the air leakage part can be quickly positioned; when inputting the air without impurity, if find that manometer numerical value descends, inspection personnel can spray soapy water at each gas tightness inspection position, and the bubble can appear at the gas leakage position, also is convenient for inspection personnel to fix a position the gas leakage position fast.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial schematic view of the present invention;

fig. 3 is a second partial schematic structural view of the present invention;

fig. 4 is a third schematic view of a part of the structure of the present invention;

fig. 5 is a fourth partial schematic view of the present invention.

In the figure: the device comprises an air blower 1, a fan valve 2, a vibration reduction joint 3, a butterfly valve 4, a pressure gauge 5, a connecting pipe 6, a front smoke box cover 7, a smoke outlet 8, an explosion-proof door 9, a smoke box body 10, a front smoke box cover 11, a smoke inlet 12, a rear smoke box cover 13, an air inlet pipe 14, an air filter 15, a first air guide pipe 16, a second air guide pipe 17 and a color gas input pipe 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1-5, the present invention provides a technical solution:

the utility model provides a boiler smoke box air tightness test device, including air-blower 1 and smoke box body 10, the left side of smoke box body 10 is equipped with flue gas inlet 12, the right side of smoke box body 10 and the position that is close to the top are equipped with exhanst gas outlet 8, air-out end of air-blower 1 is connected with first guide duct 16, flue gas inlet 12 is connected with connecting pipe 6, the one end that smoke box body 10 was kept away from to connecting pipe 6 is equipped with butterfly valve 4, after smoke box body 10 is inside to reach the malleation state, close connecting pipe 6, so that the measurement personnel observe the numerical value change of manometer 5, one side that connecting pipe 6 was kept away from to butterfly valve 4 is connected with second guide duct 17, the one end that butterfly valve 4 was kept away from to second guide duct 17 is connected with first guide duct 16 through damping festival 3, air-blower 1 loops through first guide duct 16 with the air, second guide duct 17 and connecting pipe 6 input are in smoke box body 10, make the inside of smoke box body 10 be the malleation state.

In this embodiment, a fan valve 2 is arranged at the air inlet end of the blower 1 to control the air inlet amount of the blower 1.

Specifically, the input of fan valve 2 is connected with intake pipe 14, and the outer wall connection of intake pipe 14 has the gaseous input tube of colour 18, and the gaseous of area colour can appear in the position that takes place to leak gas to the gaseous input tube of colour 18 to the gas of air-blower 1 conveyer belt colour to quick location gas leakage position, the outer wall of the gaseous input tube of colour 18 is equipped with the control valve, is convenient for control the switch of the gaseous input tube of colour 18.

Further, the one end that fan valve 2 was kept away from to intake pipe 14 is connected with air cleaner 15, and the outer wall of intake pipe 14 and the position that is close to air cleaner 15 are equipped with the control valve, when the input takes the coloured gas, can be closed with the right-hand member of intake pipe 14, avoid the external air to input simultaneously, can input impurity-free air through air cleaner 15, avoid having impurity to enter into in the smoke box body 10 when the experiment.

Further, the outer wall of the connecting pipe 6 is connected with a pressure gauge 5, whether the air pressure inside the smoke box body 10 changes or not can be judged through the pressure gauge 5, if the air pressure does not fall, the problem that the smoke box body 10 has no air leakage can be judged, and if the air pressure falls, the problem that the smoke box body 10 has air leakage is explained.

Furthermore, the connecting pipe 6 is connected with the flue gas inlet 12 by flanges, and the original connecting mode of the flue gas inlet 12 in the smoke box body 10 is not changed.

It should be noted that the joint of the front smoke box cover 11 and the smoke box body 10, the joint of the pipeline and the smoke inlet 12, the joint of the pipeline and the smoke outlet 8, the joint of the rear smoke box cover 13 and the smoke box body 10, and the joint of the explosion door 9 and the smoke box body 10 are all air tightness inspection positions.

When the boiler smoke box air tightness test device of the embodiment is used, when impurity-free air is input into the smoke box body 10 through the air blower 1, a detection person closes a control valve on the color gas input pipe 18 and opens a control valve on the air inlet pipe 14, outside air is filtered by the air filter 15 and then is conveyed into the smoke box body 10 through the air blower 1, after the smoke box body 10 is in a positive pressure state, the detection person closes the butterfly valve 4 and observes the numerical value change of the pressure gauge 5, when the numerical value of the pressure gauge 5 is not changed, the smoke box body 10 has no air leakage problem, when the numerical value of the pressure gauge 5 is reduced, the smoke box body 10 has the air leakage problem, at the moment, the detection person sprays soap water on each air tightness checking part, and air bubbles appear at the air leakage position, so that the air leakage position is quickly positioned; when the colored gas is input into the smoke box body 10 through the air blower 1, a detection person opens a control valve on a colored gas input pipe 18, the control valve on the air inlet pipe 14 is closed, the colored gas is conveyed into the smoke box body 10 through the air blower 1, after the smoke box body 10 is in a positive pressure state, the detection person closes the butterfly valve 4, then the numerical value change of the pressure gauge 5 is observed, when the numerical value of the pressure gauge 5 is unchanged, the smoke box body 10 has no gas leakage problem, when the numerical value of the pressure gauge 5 is reduced, the smoke box body 10 has the gas leakage problem, at the moment, the detection person detects each gas tightness checking part, the colored gas can appear at the part where the gas leakage occurs, and therefore the gas leakage part is quickly positioned.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only the preferred embodiments of the present invention, and is not intended to limit the present invention, and that there may be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a boiler smoke box air tightness test device which characterized in that: the air-conditioning device comprises an air blower (1) and a smoke box body (10), wherein a smoke inlet (12) is arranged on the left side of the smoke box body (10), a smoke outlet (8) is arranged on the right side of the smoke box body (10) and close to the top of the smoke box body, an air outlet end of the air blower (1) is connected with a first air guide pipe (16), the smoke inlet (12) is connected with a connecting pipe (6), one end, far away from the smoke box body (10), of the connecting pipe (6) is provided with a butterfly valve (4), one side, far away from the connecting pipe (6), of the butterfly valve (4) is connected with a second air guide pipe (17), and one end, far away from the butterfly valve (4), of the second air guide pipe (17) is connected with the first air guide pipe (16) through a damping joint (3).

2. The boiler smoke box airtightness testing apparatus according to claim 1, wherein: and a fan valve (2) is arranged at the air inlet end of the air blower (1).

3. The boiler smoke box airtightness testing apparatus according to claim 2, wherein: the input of fan valve (2) is connected with intake pipe (14), the outer wall connection of intake pipe (14) has colour gas input tube (18), the outer wall of colour gas input tube (18) is equipped with the control valve.

4. The boiler smoke box airtightness testing apparatus according to claim 3, wherein: and one end of the air inlet pipe (14) far away from the fan valve (2) is connected with an air filter (15).

5. The boiler smoke box airtightness test apparatus according to claim 1, characterized in that: the outer wall of the connecting pipe (6) is connected with a pressure gauge (5).

6. The boiler smoke box airtightness testing apparatus according to claim 1, wherein: the connecting pipe (6) is connected with the flange of the smoke inlet (12).