CN214199207U

CN214199207U - Energy-saving hot oil furnace

Info

Publication number: CN214199207U
Application number: CN202022923832.4U
Authority: CN
Inventors: 张宏涛; 李耀宁; 朱坤令; 吉建霞; 曹姗; 崔宇轩; 钱亚辉; 张娇; 张明珠; 张文琪
Original assignee: Luoyang Suni New Material Technology Co ltd
Current assignee: Luoyang FUHENG New Material Technology Co.,Ltd.
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-09-14
Anticipated expiration: 2030-12-09

Abstract

The utility model discloses an energy-saving hot oil stove, include the furnace body and install the combustor in the furnace body upper end, rotatory installation has the flame spray return bend on the flame spray pipe of combustor, flame spray return bend spun flame uses the flame spray pipe as the center on one side rotatory, on one side the directive coil the heat exchange tube on the furnace body inner wall. Has the advantages that: hot oil stove through a rotational mounting flame return bend on the flame projecting pipe at the combustor, make combustor spun flame rotatory on one side, on one side directive heat exchange tube and carry out the heat exchange with heat exchange tube direct contact, need not the air and do the heat transfer medium, heat exchange efficiency is high, and the design has also avoided flame to burn through the heat exchange tube like this, compare traditional hot oil stove, the effective utilization rate of the heat energy that the combustor burning of the hot oil stove of this application produced is showing and is promoting, fundamentally has solved the difficult problem that traditional hot oil stove heat utilization rate is low, energy-conserving effect is showing, the practicality is good.

Description

Energy-saving hot oil furnace

Technical Field

The utility model relates to a hot oil furnace field, concretely relates to energy-saving hot oil furnace.

Background

The hot oil furnace is a novel heat energy device which takes coal, oil and gas as fuel and heat conduction oil as a circulating medium for supplying heat.

At present, the common gas heat-conducting oil furnace on the market basically has a vertical structure and a horizontal structure, a burner of the vertical gas heat-conducting oil furnace is arranged at the top of a furnace body, the burner sprays flame downwards in the furnace body, a burner of the horizontal gas heat-conducting oil furnace is arranged at one end of the furnace body, the burner sprays flame horizontally in the furnace body, the flame is not directly sprayed to a heat exchange pipe on the inner wall of the furnace body no matter the flame is sprayed downwards in the vertical gas heat-conducting oil furnace or the flame is sprayed horizontally in the horizontal gas heat-conducting oil furnace, therefore, the heat conduction principle is that the flame heats air near the heat exchange pipe firstly, then the hot air exchanges heat with the heat exchange pipe, as the flame and the hot air are not blocked at all, the flow velocity block is generated, only part of the hot air heated by the flame participates in the heat exchange with the heat exchange pipe, and most of the hot air is discharged out of the furnace body along with air flow, although researchers have designed various heat energy recovery devices for recovering energy from high-temperature waste gas discharged from the furnace body to achieve the purposes of energy conservation and environmental protection, the heat exchange efficiency of the heat exchange tubes in the furnace body is still in a lower level, and the improvement is only temporary solution and not permanent solution.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the above-mentioned background art and providing an energy-saving hot oil stove, this hot oil stove heat exchange efficiency is high, and the heat energy majority that the combustor burning produced can both be used for carrying out the heat exchange with the heat exchange tube, and heat energy utilization efficiency is high, and fundamentally has solved the low difficult problem of traditional hot oil stove heat utilization, and energy-conserving effect is showing, and the practicality is good, sees the explanation below in detail.

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

the utility model provides a pair of energy-saving hot oil stove, include the furnace body and install the combustor in the furnace body upper end, rotatory installation has the flame spray return bend on the flame spray pipe of combustor, flame spray return bend spun flame uses the flame spray pipe as the center on one side rotatory, on one side the directive coil the heat exchange tube on the furnace body inner wall.

As an important design of the scheme, a slip ring is rotatably arranged on the flame-spraying pipe, and the flame-spraying bent pipe is fixedly connected with the slip ring;

the flame-spraying bent pipe comprises a straight pipe connected with the sliding ring and an inclined pipe with one end connected with the straight pipe, the straight pipe and the flame-spraying pipe are coaxial, and the axes of the inclined pipe and the straight pipe are intersected;

the straight pipe is internally and fixedly provided with a turbine fan, the flame is sprayed out from the flame spraying pipe and enters the straight pipe to push the turbine fan to rotate, and then the straight pipe and the sliding ring are driven to rotate around the flame spraying pipe.

As the optimized design of the scheme, the slip ring and the straight pipe are detachably and fixedly connected through a plurality of bolts.

As the optimized design of the scheme, an annular groove for mounting a sliding ring is formed in the outer pipe wall of the flame-spraying pipe, the sliding ring is formed by splicing a plurality of ring segments, and a bolt is mounted on each ring segment.

Has the advantages that: hot oil stove through a rotational mounting flame return bend on the flame projecting pipe at the combustor, make combustor spun flame rotatory on one side, on one side directive heat exchange tube and carry out the heat exchange with heat exchange tube direct contact, need not the air and do the heat transfer medium, heat exchange efficiency is high, and the design has also avoided flame to burn through the heat exchange tube like this, compare traditional hot oil stove, the effective utilization rate of the heat energy that the combustor burning of the hot oil stove of this application produced is showing and is promoting, fundamentally has solved the difficult problem that traditional hot oil stove heat utilization rate is low, energy-conserving effect is showing, the practicality is good.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a conventional hot oil furnace;

FIG. 2 is a schematic structural view of the hot oil furnace of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic view of the installation of the flare bend of FIG. 3;

fig. 5 is a schematic view of the slip ring structure.

The reference numerals are explained below:

1. a furnace body; 2. a heat exchange pipe; 3. a burner; 4. a flame spraying pipe; 41. an annular groove; 5. a flame; 6. a slip ring; 61. a jack; 62. a ring segment; 7. fire-spraying bent pipes; 71. a straight pipe; 72. an inclined tube; 73. a bolt; 8. a turbofan.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-2, the existing hot oil furnace and the utility model provide a hot oil furnace all include furnace body 1 and install combustor 3 in the upper end of furnace body 1, and the coil is installed heat exchange tube 2 on the inner wall of furnace body 1.

As shown in fig. 1, the flame 5 sprayed from the flame spraying tube 4 of the conventional burner 3 is vertically downward, the flame 5 does not directly contact with the heat exchange tube 2 for heat exchange, and needs to exchange heat through an air medium, while the air flow rate is high, most of the heat is taken away by the air flow, and only a small part of the heat participates in the heat exchange of the heat exchange tube 2, so that the heat energy utilization rate of the conventional hot oil furnace is very low.

This application is a rotary installation flame return bend 7 on the flame projecting pipe 4 of the combustor 3 of current hot oil stove, as shown in fig. 2, flame 5 of flame projecting return bend 7 spun uses flame projecting pipe 4 to rotate on one side as the center, on one side the directive coils heat exchange tube 2 on furnace body 1 inner wall, flame 5 directly contacts with heat exchange tube 2 and carries out the heat exchange, without the participation of air medium, therefore heat exchange efficiency is high, flame 5 can not be constantly sprayed to a certain heat exchange tube 2, consequently can not burn through heat exchange tube 2, compare traditional hot oil stove in fig. 1, the heat energy availability factor of the hot oil stove of this application is showing and is promoting, fundamentally has solved the difficult problem that traditional hot oil stove heat availability factor is low, energy-conserving effect is showing, the practicality is good.

The specific structure and installation mode of the flame-throwing bent pipe 7 are shown in fig. 3-5, a sliding ring 6 is rotatably installed on the flame-throwing pipe 4, and the flame-throwing bent pipe 7 is fixedly connected with the sliding ring 6;

the flame spraying bent pipe 7 comprises a straight pipe 71 connected with the sliding ring 6 and an inclined pipe 72 with one end connected with the straight pipe 71, the straight pipe 71 is welded with the inclined pipe 72, the straight pipe 71 is coaxial with the flame spraying pipe 4, the axes of the inclined pipe 72 and the straight pipe 71 are intersected, the intersection angle of the inclined pipe 72 and the straight pipe 71 is determined according to the height of the furnace body 1, and the flame 5 sprayed by the inclined pipe 72 can cover and contact with the heat exchange pipe 2 as much as possible;

the straight pipe 71 is internally and fixedly provided with the turbofan 8, the straight pipe 71, the inclined pipe 72 and the sliding ring 6 are all made of high-temperature-resistant and corrosion-resistant materials, flame 5 is sprayed out of the fire-spraying pipe 4 and then enters the straight pipe 71 to impact the turbofan 8, so that the turbofan 8 rotates, the turbofan 8 rotates to drive the straight pipe 71, the inclined pipe 72 and the sliding ring 6 to rotate around the fire-spraying pipe 4, and therefore the automatic rotation of the fire-spraying bent pipe 7 is achieved.

The slip ring 6 and the straight pipe 71 are detachably and fixedly connected through a plurality of bolts 73.

The outer wall of the flame-throwing tube 4 is provided with an annular groove 41 for mounting the sliding ring 6, the sliding ring 6 is formed by splicing a plurality of ring segments 62, each ring segment 62 is provided with a jack 61, and one end of a plug pin 73 is tightly inserted into the jack 61.

Although a vertical gas heat-transfer oil furnace is shown in fig. 1 and 2, the present application is equally applicable to a horizontal gas heat-transfer oil furnace.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An energy-saving hot oil furnace comprises a furnace body and a burner arranged at the upper end of the furnace body, and is characterized in that a fire spraying elbow is rotatably arranged on a fire spraying pipe of the burner, and flame sprayed by the fire spraying elbow rotates around the fire spraying pipe and shoots to a heat exchange pipe wound on the inner wall of the furnace body.

2. The energy-saving hot oil furnace of claim 1, wherein a slip ring is rotatably mounted on the flame-throwing tube, and the flame-throwing bent tube is fixedly connected with the slip ring;

3. The energy-saving hot oil furnace of claim 2, wherein the slip ring and the straight pipe are detachably and fixedly connected through a plurality of bolts.

4. The energy-saving hot oil furnace of claim 3, wherein the outer wall of the flame-throwing tube is provided with an annular groove for installing a sliding ring, the sliding ring is composed of a plurality of ring segments which are spliced together, and each ring segment is provided with a bolt.