CN216203440U - Flue of quick-cooling vacuum hot water boiler - Google Patents

Abstract

The utility model discloses a flue of a quick-cooling vacuum hot-water boiler, and relates to the field of energy-saving and environment-friendly equipment. The exhaust gas purification device comprises a horizontal pipeline communicated with a tail gas end of a combustion chamber, wherein a lower bent pipe is arranged on the horizontal pipeline, a discharge pipe is vertically communicated with the bottom end of the lower bent pipe, a vent is arranged on the upper curved surface of the lower bent pipe along the bending direction of the lower bent pipe, an arc plate is hinged to the upstream end of the vent facing to wind flow through a hinge, the radian of the arc plate is the same as the bending radian of the lower bent pipe, the arc plate is arranged in the lower bent pipe and is the same as the bending direction of the lower bent pipe, and a limiting part in contact with the inner side of the bottom end of the vent is arranged at the lower end of the arc plate; after the flue is burnt, the flue can be rapidly communicated with the outside, and the flue is rapidly cooled to reduce the high-temperature corrosion of the flue.

Description

Flue of quick-cooling vacuum hot water boiler

Technical Field

The utility model relates to the field of energy-saving and environment-friendly equipment, in particular to a flue of a quick-cooling vacuum hot water boiler.

Background

The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, and the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy.

In the heating process of the gas-fired boiler, flue gas generated by gas combustion is discharged through the flue, but the temperature of the flue is slowly reduced after the combustion is finished because of the tightness of the flue after the flue gas is discharged from the conventional flue. After long-term use, the pipeline is easy to have high-temperature corrosion because the pipeline is kept at high temperature for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a flue of a quick-cooling vacuum hot-water boiler, which can be quickly communicated with the outside after the flue is burnt, and can be quickly cooled to reduce the high-temperature corrosion of the flue.

In order to achieve the purpose, the utility model adopts the following technical means:

the utility model provides a fast cold vacuum hot water boiler flue, includes the horizontal pipeline with combustion chamber tail gas end intercommunication, be provided with down the return bend on the horizontal pipeline, the vertical intercommunication in bottom of return bend has the discharge pipe down, the last curved surface of having gone up of return bend is provided with the vent along its crooked direction down, the vent has the arc board towards the upstream end of distinguished and admirable through hinge, the radian of arc board with the crooked radian of return bend is the same down, the arc board sets up in the return bend, and with the crooked direction of return bend is the same down, the low side of arc board be provided with the spacing portion of the inboard contact in bottom of vent.

Preferably, the thickness of the arc plate is larger than that of the lower bent pipe, a baffle plate is arranged at the edge of the arc plate, and when the outer side surface of the arc plate is flush with the outer side surface of the lower bent pipe, the baffle plate is attached to the inner side surface of the lower bent pipe.

Furthermore, a rubber pad is attached to one side, facing the inner side face of the lower bent pipe, of the blocking plate.

Furthermore, the vent is arranged at the joint of the lower bent pipe and the horizontal pipeline towards the upstream end of the wind flow, and the vent is arranged at the joint of the lower bent pipe and the discharge pipe towards the downstream end of the wind flow.

Furthermore, the air outlet end of the exhaust pipe is communicated with a flue gas waste heat recovery device, and the flue gas waste heat recovery device is also communicated with an air outlet pipe.

Further, the lower bent pipe is an arc-shaped bent pipe, and the bending angle is 90 °.

The utility model has the following beneficial effects in the using process:

in the in-process that uses, when the combustion chamber normal operating's of boiler in-process, combustion chamber exhaust high-speed waste gas gets into the horizontal pipeline from the combustion chamber tail end, the distinguished and admirable time of horizontal pipeline through the downwarping pipe then gets into the discharge pipe, the end discharge of giving vent to anger from the discharge pipe, the in-process that the distinguished and admirable time of high-speed flow, when distinguished and admirable time of downwarping pipe, the arc board that articulates at downwarping pipe ventilation mouth position receives the effect of distinguished and admirable time, the effort of distinguished and admirable time is received to the arc board, rotate along the hinge, until the arc board with the vent shutoff, under the continuous action of distinguished and admirable time, the spacing portion and the downwarping pipe continuous contact of arc board outer fringe, avoid the arc board directly to blow off from the vent. At this moment in the in-process that the distinguished and admirable wind blows, the vent of lower return bend is in by arc board shutoff state, this moment by horizontal pipeline, the flue that lower return bend and discharge pipe formed is in confined state, thereby can let the smooth follow horizontal pipeline of high temperature flue gas get into then discharge from the discharge pipe, borrow the back when the burning, the flue gas air current that also gets into the flue reduces the back, the air current effort that the arc board received reduces, the arc board is under the effect of self gravity, rotate downwards along the hinge, the vent is in open state this moment, and then let the flue pass through the vent and form extra and outside air intercommunication's passageway, thereby accelerate the cooling of flue, avoid the flue to keep longer time under high temperature state, thereby reduce the flue under non-operation state, the probability of high temperature corrosion appears.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

FIG. 2 is a schematic cross-sectional view of the present invention.

Fig. 3 is a side view of the structure of fig. 2.

Fig. 4 is a partially enlarged structural view of a portion a in fig. 3.

Fig. 5 is a schematic structural diagram of an embodiment of the present invention.

Wherein, 1-horizontal pipeline, 2-lower elbow, 3-discharge pipe, 4-ventilation opening, 5-arc plate, 6-baffle, 7-flue gas waste heat recovery device, 8-air outlet pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, a flue of a rapid cooling vacuum hot water boiler includes a horizontal pipe communicated with a tail gas end of a combustion chamber, a lower bent pipe 2 is disposed on the horizontal pipe, a discharge pipe 3 is vertically communicated with a bottom end of the lower bent pipe 2, a vent 4 is disposed on an upper complete curved surface of the lower bent pipe 2 along a bending direction of the upper complete curved surface, an arc plate 5 is hinged to an upstream end of the vent 4 facing a wind flow through a hinge, a radian of the arc plate 5 is the same as a bending radian of the lower bent pipe 2, the arc plate 5 is disposed in the lower bent pipe 2 and is the same as the bending direction of the lower bent pipe 2, and a lower end (i.e., a downstream end of the arc plate 5 along the wind flow direction) of the arc plate 5 is provided with a limit portion contacting with an inner side of the bottom end of the vent 4 (i.e., a downstream end of the vent 4 along the wind flow direction).

Like this, in the in-process of use, when the combustion chamber normal operating's of boiler in-process, the high-speed waste gas of combustion chamber exhaust gets into the horizontal duct from the combustion chamber tail end, the air current passes through lower return bend 2 along the horizontal duct and then gets into discharge pipe 3, discharge from the end of giving vent to anger of discharge pipe 3, like this at the in-process that the air current flows at a high speed, when the air current passes through lower return bend 2, the arc 5 of articulated 2 vent 4 positions in lower return bend receives the effect of air current, the effort of air current is received to arc 5, rotate along the hinge, until arc 5 blocks up vent 4, under the continuous effect of air current, the spacing portion of arc 5 outer fringe and lower return bend 2 sustained contact, avoid arc 5 directly to blow out from vent 4. At this moment in the in-process that the air current blows, vent 4 of lower return bend 2 is in by arc 5 shutoff state, by the horizontal duct this moment, the flue that lower return bend 2 and discharge pipe 3 formed is in confined state, thereby can let the smooth follow horizontal duct of high temperature flue gas get into then discharge from discharge pipe 3, borrow the back when burning, also namely the flue gas air current that gets into the flue reduces the back, the air current effort that arc 5 received reduces, arc 5 is under the effect of self gravity, rotate downwards along the hinge, vent 4 is in open state this moment, and then let the flue pass through vent 4 and form extra passageway with the outside air intercommunication, thereby accelerate the cooling of flue, avoid the flue to keep longer time under the high temperature state, thereby reduce the flue under the non-operating condition, the probability of high temperature corrosion appears.

Further, the thickness of arc 5 is greater than the thickness of return bend 2 down, the edge of arc 5 is provided with the fender 6, works as the lateral surface of arc 5 with the lateral surface of return bend 2 is leveled when flat, fender 6 with the medial surface laminating of return bend 2 down.

Namely the aforementioned limit stop, i.e. the repelling plate 6 described herein. The arc plate 5 is prevented from being blown out of the ventilation opening 4 by the interaction between the baffle plate 6 and the inner side of the lower bend 2.

Furthermore, the baffle 6 is provided with a rubber pad facing one side of the inner side surface of the lower bent pipe 2.

In this way, the rubber pad is used to increase the sealing performance between the baffle 6 and the inner wall of the lower elbow 2, so that the airtightness of the whole lower elbow 2 is improved when high-temperature airflow passes through, and the air leakage condition of the air vent 4 is reduced.

Furthermore, the upstream end of the ventilation opening 4 facing the wind flow is arranged at the joint of the lower bent pipe 2 and the horizontal pipeline, and the downstream end of the ventilation opening 4 facing the wind flow is arranged at the joint of the lower bent pipe 2 and the discharge pipe 3.

Then, the gas outlet end of the discharge pipe 3 is communicated with a flue gas waste heat recovery device 7, and the flue gas waste heat recovery device 7 is also communicated with a gas outlet pipe 8.

And, the lower bent pipe 2 is an arc-shaped bent pipe, and the bending angle is 90 °.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims (6)

1. The utility model provides a fast cold vacuum hot water boiler flue, includes horizontal pipeline (1) with combustion chamber tail gas end intercommunication, be provided with down return bend (2) on horizontal pipeline (1), the vertical intercommunication in bottom of lower return bend (2) has discharge pipe (3), its characterized in that: the last curved surface of completing of return bend (2) is provided with vent (4) along its crooked direction down, vent (4) have arc board (5) through hinge joint towards the upper reaches end of distinguished and admirable, the radian of arc board (5) with the crooked radian of return bend (2) is the same down, arc board (5) set up in return bend (2) down, and with the crooked direction of return bend (2) down is the same, the low side of arc board (5) be provided with the spacing portion of the inboard contact in bottom of vent (4).

2. The flue of the rapid cooling vacuum hot water boiler according to claim 1, characterized in that: the thickness of arc board (5) is greater than the thickness of return bend (2) down, the edge of arc board (5) is provided with fender (6), works as the lateral surface of arc board (5) with the lateral surface of return bend (2) is neat at ordinary times down, fender (6) with the medial surface laminating of return bend (2) down.

3. The flue of the rapid cooling vacuum hot water boiler according to claim 2, characterized in that: the baffle (6) faces one side of the inner side face of the lower bent pipe (2) and is provided with a rubber pad in a fitting mode.

4. The flue of the rapid cooling vacuum hot water boiler according to claim 1, characterized in that: the vent (4) is arranged at the joint of the lower bent pipe (2) and the horizontal pipeline (1) towards the upstream end of the wind flow, and the vent (4) is arranged at the joint of the lower bent pipe (2) and the discharge pipe (3) towards the downstream end of the wind flow.

5. The flue of the rapid cooling vacuum hot water boiler according to claim 1, characterized in that: the gas outlet end of the discharge pipe (3) is communicated with a flue gas waste heat recovery device (7), and the flue gas waste heat recovery device (7) is also communicated with a gas outlet pipe (8).

6. The flue of the rapid cooling vacuum hot water boiler according to claim 1, characterized in that: the lower bent pipe (2) is an arc-shaped bent pipe, and the bending angle is 90 degrees.

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