CN210929590U

CN210929590U - Safety control device for combustion of tobacco flue-curing house

Info

Publication number: CN210929590U
Application number: CN201921479876.3U
Authority: CN
Inventors: 刘长华; 徐龙秀; 杨秀松; 邹光进; 柳强; 蒋聪; 付继刚; 杨静; 刘开植; 屠承琼; 万胜乾; 莫保明; 胡勤
Original assignee: Guizhou Xianhua Energy Technology Development Co ltd; Qiandongnan Co of Guizhou Tobacco Co
Current assignee: Guizhou Xianhua Energy Technology Development Co ltd; Qiandongnan Co of Guizhou Tobacco Co
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-07-07
Anticipated expiration: 2029-09-06

Abstract

The utility model discloses a tobacco flue-curing house burning safety control device, including tobacco flue-curing house and supporting control assembly thereof, the tobacco flue-curing house includes heating chamber and dress smoke chamber, install temperature and humidity detection device in the dress smoke chamber, temperature and humidity detection device with control assembly electrical connection be provided with the combustor in the heating chamber, the combustor with control assembly electrical connection the humiture value that temperature and humidity detection device detected surpasss or is less than and toasts the setting value, and will the humiture value is given for behind the control assembly, by control assembly control the switch of combustor. The control device can solve the technical problem that normal baking of tobacco leaves is influenced due to misoperation of the burner.

Description

Safety control device for combustion of tobacco flue-curing house

Technical Field

The utility model relates to a tobacco flue-curing house burning safety control device belongs to tobacco flue-curing house technical field.

Background

The tobacco curing house is mainly used for curing tobacco leaves. The tobacco curing room comprises a heating chamber and a tobacco loading chamber, and after tobacco leaves are hung in the tobacco loading chamber, heat is supplied to the tobacco loading chamber through the heating chamber to complete the curing of the tobacco leaves. At present, the heating chamber generally adopts solid fuel or an electric heat converter using electric energy and a motor-driven electric power fan to implement a tobacco leaf baking process of hot air circulation. The solid fuel is mainly coal, the using mode of the solid fuel is that a combustion furnace is arranged in a heating chamber, the coal is combusted in the combustion furnace to generate heat so as to supply heat, and the combustion is mainly controlled by manually adding or reducing the coal during combustion. The electric energy is mainly used for installing an electric-heat conversion device, the electric energy is converted into heat energy through the electric-heat conversion device for supplying heat, and the electric-heat conversion device is controlled to realize the control of heating. However, when fuel oil is used as fuel for combustion heating, that is, the fuel oil is combusted by a burner to generate flame for heating, a safety control device for combustion of the fuel oil burner in a tobacco flue-curing house, especially a safety control device for preventing the burner from being operated by mistake so as to influence normal baking of tobacco leaves, is not seen at present.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the utility model provides a tobacco flue-curing house burning safety control device, when feeling the humiture value of tobacco flue-curing house and surpassing or being less than the stoving setting value, the control assembly just allows to carry out combustion control to the combustor to thereby solve the technical problem that the maloperation combustor influences the tobacco leaf and toasts normally.

The technical scheme of the utility model is that: the utility model provides a tobacco flue-curing house burning safety control device, includes tobacco flue-curing house and supporting control assembly thereof, the tobacco flue-curing house includes heating chamber and dress smoke chamber, install temperature and humidity detection device in the dress smoke chamber, temperature and humidity detection device with control assembly electrical connection be provided with the combustor in the heating chamber, the combustor with control assembly electrical connection the humiture value that temperature and humidity detection device detected surpasss or is less than and toasts the setting value, and will the humiture value is given for behind the control assembly, by control assembly control the switch of combustor.

Further, the burner includes:

the oil injection pipe body comprises an oil injection end and an oil supply end, and the oil supply end is connected with the oil supply pipeline;

the fuel injection pipe is arranged in the combustion pipe body and is close to the combustion nozzle end;

the igniter is arranged in the oil injection pipe body, is close to the oil injection end and is used for igniting fuel oil;

and the fan outlet of the air blower is arranged in the combustion pipe body and is positioned between the oil injection end and the closed end so as to convey air outside the tobacco flue-curing house to air required by combustion of fuel oil sprayed from the oil injection end.

Further, be provided with the electric valve on the oil spout body, control assembly with the control end electrical connection of electric valve, control assembly with the control end electrical connection of air-blower, control assembly with the control end electrical connection of some firearm, by control assembly control electric valve's switching, the ignition of some firearm, and the switch of air-blower.

Further, be provided with heat radiation structure in the heating chamber, heat radiation structure includes the heat dissipation cavity, the burning body the burning spout end extends into in the heat dissipation cavity, in order to with the flame that the combustor produced spouts in the heat dissipation cavity, by the heat dissipation cavity gives off the heat in the heating chamber, in order to provide the tobacco flue-curing house toasts the required heat of tobacco leaf.

Furthermore, the upper end face of the heat dissipation cavity is connected with a heat conduction bracket, and a plurality of heat conduction pipes are horizontally arranged on the heat conduction bracket at intervals.

Furthermore, the heat conduction support is two heat conduction fins which are welded on the upper end face of the heat dissipation cavity and are opposite to each other, and two ends of the plurality of heat conduction pipes are respectively welded on the two heat conduction fins.

Further, a fan is installed above the heat conductive pipe, and the fan is configured to guide air to flow upward or downward.

The utility model has the advantages that: the utility model discloses well combustor and control assembly electrical connection, the humiture value that detects at the temperature and humidity detection device surpasss or is less than and toasts the setting value to give the control assembly back with the humiture value transmission, by the switch of control assembly control combustor again, thereby this kind of control structure can solve the technical problem that the maloperation combustor influences the normal stoving of tobacco leaf.

Drawings

FIG. 1 is a schematic structural diagram of a combustion safety control device of a tobacco flue-curing house in one embodiment;

FIG. 2 is an enlarged schematic view of the burner of FIG. 1;

FIG. 3 is a schematic view of the homogenizing plate of FIG. 1;

FIG. 4 is a schematic view of the heat dissipation structure and the tobacco flue-curing house shown in FIG. 1;

FIG. 5 is a control block diagram of the burner;

description of reference numerals:

300 burners, 400 heat dissipation structures and 500 tobacco curing houses;

310 oil injection pipe body, 311 oil injection end, 312 oil supply end, 313 electric valve, 320 combustion pipe body, 321 combustion nozzle end, 322 closed end, 323 uniform jet plate, 330 igniter and 340 blower;

410 heat dissipation cavity, 411 mounting holes, 412 exhaust pipes, 420 heat conduction bracket, 430 heat conduction pipe and 440 fan;

510 heating chamber, 520 smoke containing chamber, 530 partition wall, 540 air return opening and 550 air inlet.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 to 5 are schematic structural diagrams of a combustion safety control device of a tobacco flue-curing house according to an embodiment. The tobacco flue-curing house 500 mainly comprises a heating chamber 510 and a tobacco containing chamber 520, wherein the tobacco containing chamber 520 is mainly used for containing tobacco and baking, and the heating chamber 510 mainly provides heat required for baking in the tobacco containing chamber 520. The heating chamber 510 is disposed adjacent to the tobacco loading chamber 520, the heating chamber 510 and the tobacco loading chamber 520 are usually separated by a partition 530, an air inlet 550 and an air return opening 540 are opened on the partition 530, hot air generated by the heating chamber 510 enters the tobacco loading chamber 520 from the air inlet 550, tobacco leaves are baked and then return to the heating chamber 510 through the air return opening 540 for circulation, and the circulation is completed after the baking.

For example, an air inlet 550 is formed at a lower portion of the partition 530, and an air return 540 is formed at an upper portion of the partition 530 to form the ascending flue-cured tobacco house 500, or an air inlet 550 is formed at an upper portion of the partition 530, and an air return 540 is formed at a lower portion of the partition 530 to form the descending flue-cured tobacco house 500. In the baking room field, the air inlet 550 and the air return 540 are the same opening structure, and the difference in name is mainly due to which opening the hot air in the heating chamber 510 enters into the smoke containing chamber 520, and from which opening the hot air in the smoke containing chamber 520 flows back into the heating chamber 510.

The tobacco flue-curing house 500 is further provided with a control assembly in a matching manner, and a temperature and humidity detection device is further installed in the tobacco loading chamber 520 and is electrically connected with the control assembly. The temperature and humidity detecting device is mainly used for sensing the baking temperature in the tobacco containing chamber 520 and is used as a basis for adjusting the temperature of the tobacco curing barn 500. The temperature and humidity detection device can be a temperature and humidity sensor. The control component may be a controller, such as a PLC single chip, which is a common control device on the tobacco flue-curing house 500.

The burner 300 is arranged in the heating chamber 510, the burner 300 is electrically connected with the control assembly, the temperature and humidity value detected by the temperature and humidity detection device exceeds or is lower than the baking set value, and after the temperature and humidity value is transmitted to the control assembly, the control assembly controls the switch of the burner 300. For example, in a certain baking stage of the tobacco leaves, the set temperature is 40 ℃, when the temperature and humidity detection device detects that the dry bulb temperature in the tobacco loading chamber 520 is 41 ℃, and the control component receives the temperature value signal, the burner 300 is allowed to be controlled to stop burning, and at this time, the burner 300 cannot be manually started. When the temperature and humidity detecting device detects that the temperature of the dry bulb in the tobacco containing chamber 520 is 38 ℃, and the control assembly receives the temperature value signal, the burner 300 cannot be manually closed at the moment

Referring to fig. 2 and 3, the burner 300 is mainly used for burning fuel oil and supplying heat generated by the burning to the baking room for baking. The burner 300 includes an oil injection tube 310, a combustion tube 320, an igniter 330, and a blower 340.

And the oil injection pipe body 310 comprises an oil injection end 311 and an oil supply end 312, and the oil supply end 312 is connected with the outlet end of the oil supply pipeline. The fuel injection pipe body 310 is mainly used for injecting fuel, and the fuel is input from the fuel supply end 312 and injected from the fuel injection end 311. Specifically, the fuel injection pipe body 310 is a tubular structure made of steel, and the fuel injection end 311 converges to form a conical nozzle, but of course, in other embodiments, the fuel injection end 311 may be a nozzle structure, or a nozzle may be installed on the fuel injection pipe body 310 to form the fuel injection end 311. The fuel supply line is mainly used to supply fuel required for combustion of fuel injection pipe body 310.

The burner body 320 has a burner nozzle end 321 and a closed end 322, and the burner nozzle end 311 is disposed in the burner body 320 and is close to the burner nozzle end 321. The burner body 320 serves mainly as a combustion site for fuel. Specifically, the fuel injection pipe body 310 is disposed through the axial center of the combustion pipe body 320, wherein the fuel injection end 311 is close to the combustion nozzle end 321, and the fuel supply end 312 passes through the closed end 322 and extends outward. Preferably, the uniform injection plate 323 is installed in the combustion nozzle end 321, the uniform injection plate 323 is a circular plate matched with the combustion pipe body 320, a plurality of through holes are formed in the circular plate, the through holes can divide fuel into a plurality of strands for combustion, and a certain gap is formed between each strand, so that the fuel can be sufficiently combusted, and the combustion efficiency is further improved.

And the igniter 330 is arranged in the oil injection pipe body 310 and is close to the oil injection end 311. The igniter 330 is mainly used to ignite the fuel injected from the fuel injection end 311. The igniter 330 may be a fuel igniter 330.

And a blower 340, a blower outlet of which is disposed in the combustion tube body 320 and between the oil spraying end 311 and the closed end 322, for delivering air outside the tobacco flue-curing barn 500 into the combustion tube body 320 to supply air required for combustion of the fuel sprayed from the oil spraying end 311. Specifically, the air inlet 550 of the blower 340 is disposed outside the tobacco flue-curing house 500, and the blower outlet is disposed through the wall surface of the combustion pipe 320. The blower 340 may be a centrifugal blower 340.

Referring to fig. 5, for the convenience of implementing intelligent control of the burner 300, it is associated with the control of the tobacco flue-curing house 500. An electric valve 313 is arranged on the injection tube body 310, and the electric valve 313 is mainly used for closing and opening the injection tube body 310, namely determining whether to inject oil, and can quickly extinguish combustion when needed due to the position close to the injection end 311.

The control assembly is electrically connected with the control end of the electric valve 313 and is electrically connected with the control end of the igniter 330; the control assembly is electrically connected with the control end of the blower 340, and the control assembly controls the opening and closing of the electric valve 313, the ignition of the igniter 330 and the opening and closing of the blower 340. The advantage of this kind of structure lies in, feels the humiture that temperature and humidity detection device detected after surpassing or being less than the setting value at the control assembly, by the switch of control assembly control combustor 300 again, so regard the humiture in tobacco flue-curing house 500 as the condition of control combustor 300, can avoid the tobacco leaf curing damage that the combustor 300 maloperation caused.

Referring to fig. 4, a heat dissipation structure 400 is installed in a heating chamber 510 of a tobacco flue-curing house 500, and the heat dissipation structure 400 is mainly used for receiving flames generated by the fuel oil burner 300 and dissipating heat into the heating chamber 510 for tobacco leaf baking. The fuel burner 300 is mainly used to burn preheated fuel, and is a conventional fuel combustion apparatus that ejects fuel to burn to generate flame.

The heat dissipation structure 400 includes a heat dissipation chamber 410, a heat conductive bracket 420, a heat conductive pipe 430, and a fan.

The heat dissipation chamber 410 is mainly used for receiving the flame generated by the burner 300, dissipating part of the heat into the heating chamber 510, and transferring part of the heat to the heat conductive bracket 420 and the heat conductive pipe 430. Specifically, the heat dissipating cavity 410 is a cavity structure with a shape similar to a cone, the upper portion of which is small and the lower portion of which is large, and the lower portion of which is provided with a mounting hole 411, and the mounting hole 411 is used for mounting the combustion pipe body 320. So that the flame can rapidly heat the upper portion of the heat dissipation chamber 410 and rapidly dissipate the heat. The heat dissipation cavity 410 is made of a heat conductive metal material, such as steel or iron.

An exhaust pipe 412 is further opened at the upper portion of the heat dissipation chamber 410, and the exhaust pipe 412 is mainly used for exhausting the gas in the combustion chamber. Specifically, one end of the exhaust pipe 412 extends into the heat dissipation cavity 410, and the other end extends outward out of the heating chamber 510, so as to exhaust the exhaust gas generated by combustion out of the heating chamber 510.

And a heat conductive bracket 420 disposed on an upper end surface of the heat dissipation cavity 410. The heat conductive bracket 420 mainly functions as a bridge to transfer heat from the surface of the heat dissipation chamber 410 to the heat conductive pipe 430. Specifically, the heat conducting bracket 420 is two opposite heat conducting fins welded on the upper end surface of the heat dissipating cavity 410. The heat conducting bracket 420 is made of a heat conducting metal material, such as steel or iron.

A heat conducting pipe 430, and a plurality of heat conducting pipes 430 horizontally arranged at intervals on the heat conducting frame. The heat pipe 430 mainly functions to dissipate heat transferred from the heat dissipation chamber 410 into the heating chamber 510. Specifically, two ends of the plurality of heat pipes 430 are respectively welded to the two heat conductive plates, and the plurality of heat pipes 430 are parallel to each other. The heat pipe 430 is mainly a tubular structure, and has a characteristic of high heat transfer efficiency compared with a solid structure. The heat pipe 430 is made of a metal material capable of conducting heat, such as steel, iron, etc.

When the burner 300 is burning, the heat dissipation chamber 410 can transfer heat to the heat conductive bracket 420, and then the heat conductive bracket 420 transfers the heat to the heat conductive pipe 430, so that the heat conductive pipe 430 can dissipate the heat into the heating chamber 510. The structure can increase the heat dissipation area, prolong the heat dissipation time and improve the utilization rate of heat.

And a fan 440 installed above the plurality of heat pipes 430. The fan 440 mainly serves to transport the air flow upward or downward, and further transport the heat generated by the combustion furnace and dissipated by the heat pipes 430 upward or downward, thereby forming the descending tobacco flue-curing house 500 or the ascending tobacco flue-curing house 500. The fan 440 may be an axial fan that is horizontally mounted above the plurality of heat conductive pipes 430 by a mounting bracket.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a tobacco flue-curing house burning safety control device, includes tobacco flue-curing house (500) and supporting control assembly thereof, tobacco flue-curing house (500) include heating chamber (510) and dress smoke chamber (520), install temperature and humidity detection device in dress smoke chamber (520), temperature and humidity detection device with control assembly electrical connection, its characterized in that be provided with combustor (300) in heating chamber (510), combustor (300) with control assembly electrical connection the humiture value that temperature and humidity detection device detected surpasss or is less than and toasts the setting value, and will humiture value transmits for behind the control assembly, by control assembly control the switch of combustor (300).

2. The tobacco flue-curing house combustion safety control device according to claim 1, characterized in that the burner (300) comprises:

the oil injection pipe body (310) comprises an oil injection end (311) and an oil supply end (312), and the oil supply end (312) is connected with an oil supply pipeline;

a combustion nozzle body (320) having a combustion nozzle end (321) and a closed end (322), the fuel injector tube being disposed within the combustion nozzle body (320) and proximate the combustion nozzle end (321);

the igniter (330) is arranged in the oil injection pipe body (310) and is close to the oil injection end (311) and is used for igniting fuel oil;

a blower (340), a blower outlet of the blower (340) is arranged in the combustion tube body (320) and is positioned between the oil injection end (311) and the closed end (322) so as to convey air outside the tobacco flue-curing house (500) to air required by fuel oil sprayed from the oil injection end (311) during combustion.

3. The combustion safety control device of the tobacco flue-curing house according to claim 2, characterized in that an electric valve (313) is arranged on the oil injection pipe body (310), the control component is electrically connected with a control end of the electric valve (313), the control component is electrically connected with a control end of the blower (340), the control component is electrically connected with a control end of the igniter (330), the control component controls the opening and closing of the electric valve (313), the ignition of the igniter (330), and the switch of the blower (340).

4. The tobacco flue-curing house combustion safety control device according to claim 2, characterized in that a heat dissipation structure (400) is provided in the heating chamber (510), the heat dissipation structure (400) comprises a heat dissipation cavity (410), the combustion nozzle end (321) of the combustion pipe body (320) extends into the heat dissipation cavity (410) to inject the flame generated by the burner (300) into the heat dissipation cavity (410), and the heat is dissipated into the heating chamber (510) by the heat dissipation cavity (410) to provide the heat required by the tobacco flue-curing house (500) to cure the tobacco leaves.

5. The combustion safety control device of the tobacco flue-curing house according to claim 4, characterized in that a heat conducting bracket (420) is connected to the upper end face of the heat dissipation cavity (410), and a plurality of heat conducting pipes (430) are horizontally arranged on the heat conducting bracket at intervals.

6. The combustion safety control device of the tobacco flue-curing house according to claim 5, characterized in that the heat conducting bracket (420) is two opposite heat conducting plates welded on the upper end surface of the heat dissipation chamber (410), and two ends of a plurality of heat conducting pipes (430) are respectively welded on the two heat conducting plates.

7. The flue-cured tobacco house combustion safety control device according to claim 5, characterized in that a fan (440) is installed above the heat conductive pipe (430), the fan (440) being configured to guide air to flow upward or downward.