CN203692508U - Heat isolation protective device for boiler combustion fan - Google Patents
Heat isolation protective device for boiler combustion fan Download PDFInfo
- Publication number
- CN203692508U CN203692508U CN201320463758.XU CN201320463758U CN203692508U CN 203692508 U CN203692508 U CN 203692508U CN 201320463758 U CN201320463758 U CN 201320463758U CN 203692508 U CN203692508 U CN 203692508U
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- CN
- China
- Prior art keywords
- combustion fan
- door
- protective device
- plate
- heat
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- Expired - Fee Related
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Abstract
The heat isolation protective device comprises a combustion fan heat isolation protective device, one end of which is connected with the combustion fan and the other end of which is connected with a chamber air inlet; and heat isolation protective work can be accomplished through a bidirectional automatic control switch between valve baffle plates (3, 4) and a straight through port (7) on a case body (2) and a chamber air inlet (1). At a rapid temperature-rise period, the combustion fan works and produces compression air flows to drive an upper air door plate (4) to be sealed with the case body (2) via a lower air door plate (4); the airflow totally enters a chamber air inlet door and the chamber quickly burns; at a heat-preservation or slow temperature-rise period, when the combustion fan stops working and naturally burns, reverse high temperature radiation from the chamber to an air inlet door (1) is blocked, so possibility is avoided that the combustion fan connected to the chamber air inlet port is damaged at a non-work high temperature state; service life of the combustion fan is prolonged; the heat isolation protective device for the boiler combustion fan is simply structured with reliability; without external force, the device can automatically work; and heat radiation can be effectively blocked and a problem that the combustion fan is burnt out is solved.
Description
Technical field
The invention belongs to a kind of by the boiler of air inflow control combustion or the corollary apparatus of firing equipment, the particularly heat-insulating protective device of the fire door combustion fan of a kind of fire coal or solid-fuelled tobacco tobacco flue-curing house heating furnace.
Background technology
Along with the expansion in boiler applications field, boiler presents little microminiaturization, automation in recent years.The particularly development of tobacco agriculture, automatic and semi-automatic intensive tobacco curing has started to popularize, the automation of tobacco flue-curing house heating boiler is used and be unable to do without combustion fan, combustion fan can pass through the constant air inlet of specification, to improve the means adjusting air inflow quantity size of wind speed, meet the needs of boiler.But, small boiler, manufacture and design compacter, or other conditionalities, burner hearth air door is generally excessively near apart from combustion chamber, the excess Temperature that combustion fan is born, quits work at combustion fan, and when burner hearth spontaneous firing, high temperature is to the radiation of burner hearth inlet flap, or the wind-force of burner hearth air exit pours in down a chimney, high temperature reradiation, is heated the combustion fan being connected on burner hearth shutter, causes the off working state of blower fan to damage.Particularly automation, the semi-automatic little miniature boiler of tobacco flue-curing house of controlling, this situation is particularly outstanding.
Therefore the problem that, causes combustion fan off working state to cross cause thermal damage for the long-time thermal radiation of solution combustion fan is those skilled in the art's problem demanding prompt solutions.
Summary of the invention
In view of this, the utility model provides a kind of boiler auxiliary combustion blower fan heat-proof device, with solve combustion fan easily under off working state because of the overheated problem of damaging.
For achieving the above object, the utility model provides following technical scheme:
A kind of boiler auxiliary combustion blower fan heat-insulating protective device, comprising:
One end is connected with combustion fan, the heat insulation protection cabinet that the other end is connected with air inlet, the inverted V-shape valve arrangement being formed by upper valve plate, lower valve plate in addition in casing, and the sealing device that upper valve plate can contact with straightthrough port, combustion fan interface can contact with lower valve plate.
Wherein, the air-flow thrust that described V-type valve plate can produce by self gravitation and combustion fan in regulation track swings as the center of circle take axle, in the time that combustion fan is worked, form seal chamber and supply with compressed air stream to burner hearth shutter, also can be in the time that combustion fan quit work, burner hearth shutter directly communicates with atmosphere, now, valve can be blocked the heat conduction between burner hearth shutter and combustion fan, does not need again could communicate with atmosphere by combustion fan as legacy equipment.
Wherein, on described casing, straightthrough port can be by upper valve guard seal, and while guaranteeing combustion fan work, air-flow is delivered to burner hearth with compressed form sealing, accelerates the burning of burner hearth; In the time that combustion fan quits work, upper valve is opened under self gravitation effect, and burner hearth shutter communicates with atmosphere, and lower valve plate contacts sealing with the combustion fan interface other end, the heat radiation high temperature that blocking-up is come by burner hearth air inlet, and guaranteed that boiler needs the oxygen supply demand of natural inflow.
Through as shown from the above technical solution, compared with prior art, the present invention is by this jockey, can be in the time that combustion fan be worked, the compressed air stream producing enters burner hearth accelerated combustion by the casing of sealing, again can be in the time that combustion fan do not worked, and burner hearth air inlet directly communicates with atmosphere, block heat propagation radiation by atmosphere, reduce combustion fan and descended the problem of cause thermal damage because of off working state.
This project organization is simple, can be not by external force automatic operation, efficiently solve combustion fan because off working state is by burner hearth hyperthermia radiation damage problem.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skills, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
The combustion fan off working state heat-insulating protective device effect schematic diagram that Fig. 1 provides for the embodiment of the present invention
Heat-insulating protective device effect schematic diagram when the combustion fan that Fig. 2 provides for the embodiment of the present invention pressurizes.
The specific embodiment
The utility model provides a kind of boiler auxiliary combustion blower fan heat-insulating protective device, design and produce, install simple, both the compressed air stream that while solving boiler combustion, effective sealing combustion fan produces enters fire box by air inlet, again can be in the time that combustion fan not be worked, burner hearth air inlet directly communicates with atmosphere, block heat propagation radiation by atmosphere, reduce the problem of combustion fan because of radiation or backflow high-temperature damage combustion fan, extend the service life of combustion fan.This designs and produces, install simple, can non-stop run, and can effectively solve combustion fan and be damaged problem by burner hearth hyperthermia radiation because of off working state.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 and Fig. 2, a kind of boiler auxiliary combustion blower fan heat-insulating protective device work schematic diagram providing for the utility model embodiment.
The boiler auxiliary combustion blower fan heat-insulating protective device that the present embodiment provides, can comprise: casing 2 one end are connected with combustion fan interface 6, away from one end and the burner hearth air inlet 1 of fan interface, on casing 2, also has straightthrough port 7, in casing, also have into the windward door-plate 3 of V-structure, the valve cast that leeward door-plate 4 forms, above-mentioned valve is fixed by curtain shaft 5.
Be rapidly heated the stage at boiler, when combustion fan operation, compressed air stream is by combustion fan interface 6, the lower valve plate 4 of V-type valve arrangement is opened and upwards front promotion, under this promotes, upper valve plate 3 contacts sealing with casing top straightthrough port 7, and it is combustion-supporting that air-flow enters burner hearth through burner hearth shutter 1, completes thus burner hearth oxygenation and heat work.
Heat up or holding stage slow, combustion fan quits work, V-type valve is particularly gone up at self gravitation under the Action of Gravity Field of valve plate 3, lower valve plate 4 extends to an end in contact in casing 2 with combustion fan interface 6 and closes, block the heat radiation by burner hearth shutter 1 place, now going up valve plate 3 departs from open with straightthrough port 7, burner hearth shutter 1 directly communicates with atmosphere by straightthrough port 7, in guaranteeing that burner hearth natural inflow needs, resultant heat radiation communicates lost with atmosphere, add the blocking-up of upper and lower valve plate, make the combustion fan can be because of not overheated under off working state, solve in traditional design combustion fan and damaged problem by burner hearth hyperthermia radiation because of off working state.
From the above mentioned, the utility model is a kind of boiler auxiliary combustion blower fan heat-insulating protective device, can comprise: a kind of occluding device being connected between combustion fan and burner hearth shutter, between this occluding device and burner hearth shutter, also comprises the valve arrangement that can communicate with atmosphere, can close.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the utility model.To be apparent for those skilled in the art to the multiple modification of these embodiment, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (3)
1. a boiler auxiliary combustion blower fan heat-insulating protective device, comprise: one end is connected with combustion fan interface (6), the casing (2) that the other end is connected with burner hearth air inlet (1), straightthrough port (7) on casing (2), in casing, become the windward door-plate (3) of V-structure, the valve cast of leeward door-plate (4) composition, described valve cast is fixed on casing by curtain shaft (5).
2. boiler auxiliary combustion blower fan heat-insulating protective device according to claim 1, is characterized in that, leeward door-plate (4) and combustion fan interface (6) one end in contact rely on self gravitation to play the sealing function of reinforcement; Described upper wind door, the air-flow thrust that (3) are produced by combustion fan with contacting of straightthrough port (7) promotes windward door-plate (3) in leeward door-plate (4) and plays enhanced leaktightness effect.
3. boiler auxiliary combustion blower fan heat-insulating protective device according to claim 1 and 2, it is characterized in that, leeward door-plate (4) relies on self gravitation to play the sealing function of reinforcement with combustion fan interface (6) one end in contact, leeward door-plate (4) contacts with the port that combustion fan interface (6) extends, rather than contact with casing (2), reduce contact area, reduced the long-time static contact-making surface of leeward door-plate (4) and produced the possibility of adhesion, improved the reliability of valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320463758.XU CN203692508U (en) | 2013-07-31 | 2013-07-31 | Heat isolation protective device for boiler combustion fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320463758.XU CN203692508U (en) | 2013-07-31 | 2013-07-31 | Heat isolation protective device for boiler combustion fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203692508U true CN203692508U (en) | 2014-07-09 |
Family
ID=51043037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320463758.XU Expired - Fee Related CN203692508U (en) | 2013-07-31 | 2013-07-31 | Heat isolation protective device for boiler combustion fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203692508U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105831790A (en) * | 2016-06-03 | 2016-08-10 | 湖南省烟草公司长沙市公司宁乡县分公司 | Protector for combustion fan of bulk curing barn |
| CN109425230A (en) * | 2017-08-25 | 2019-03-05 | 张跃 | A kind of furnace body is adaptive to answer the door |
| CN113154460A (en) * | 2021-03-19 | 2021-07-23 | 玛仕电磁技术(上海)有限公司 | Multifunctional heat energy power generation device |
-
2013
- 2013-07-31 CN CN201320463758.XU patent/CN203692508U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105831790A (en) * | 2016-06-03 | 2016-08-10 | 湖南省烟草公司长沙市公司宁乡县分公司 | Protector for combustion fan of bulk curing barn |
| CN109425230A (en) * | 2017-08-25 | 2019-03-05 | 张跃 | A kind of furnace body is adaptive to answer the door |
| CN109425230B (en) * | 2017-08-25 | 2021-02-19 | 张跃 | Furnace body self-adaptation door |
| CN113154460A (en) * | 2021-03-19 | 2021-07-23 | 玛仕电磁技术(上海)有限公司 | Multifunctional heat energy power generation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20150731 |
|
| EXPY | Termination of patent right or utility model |