CN210717643U

CN210717643U - Flame monitoring device of blast type burner

Info

Publication number: CN210717643U
Application number: CN201921562721.6U
Authority: CN
Inventors: 马兴华; 马守凯; 李冲; 时晓照
Original assignee: Henan Dongwang Xichao Industry Co Ltd
Current assignee: Henan Dongwang Xichao Industry Co Ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-06-09
Anticipated expiration: 2029-09-19

Abstract

The utility model provides a flame monitoring devices of forced draft combustor, includes the combustor body, and the combustor body includes flame probe, and flame probe sets up at flame diffusion dish center and stretches out flame diffusion dish surface, and flame probe's length is 2/5~3/5 of flame diffusion dish diameter. Compared with the prior art, the utility model discloses a with flame probe setting at the center of flame diffusion dish, to the improvement of flame monitor's flame probe length extension, increased the contact range of flame probe and flame, avoided the loaded down with trivial details step of flame probe installation and debugging process, guaranteed the flame probe to the normal monitoring of small fire and main flame, ensure combustor normal operating and avoided the emergence of repeated ignition, and then produce stable good flame.

Description

Flame monitoring device of blast type burner

Technical Field

The utility model relates to a civil and industrial gas, fuel and dual fuel forced draft formula combustor field, concretely relates to flame monitoring devices of forced draft formula combustor.

Background

The ionic probe monitor is mainly used for flame monitoring of civil and industrial burners and has good and reliable monitoring performance. In the technology adopted by the existing equipment, the relative position of a flame probe configured on a flame monitor and a flame diffusion disc is fixed, the installation and debugging process of the flame probe is complicated, and the flame probe must be contacted with flame during installation, so that the requirements of meeting the ignition in a first-stage fire (namely small fire) operation stage and meeting the combustion in a second-stage fire (namely main flame) operation stage are met; when the combustor enters a second section of fire from the first section of fire to run, because the flame position of the second section of fire moves forwards relative to the surface of the flame diffusion disc, the flame position is far away from the flame diffusion disc, if a flame probe only meets the monitoring of the flame when the first section of fire runs, the normal monitoring of the flame of the second section of fire cannot be completely ensured, and the condition that the flame cannot be monitored is caused due to unstable flame monitoring, a safety control device of the combustor can cut off the supply of air and fuel to stop combustion; when the burner directly operates on the second-stage fire, normal monitoring of the flame of the first-stage fire cannot be met under the condition of ensuring the flame monitoring of the second-stage fire, and the condition of unstable flame monitoring can also be caused; meanwhile, the length of the conventional flame probe is 1/5 the diameter of the flame disk, the contact probability is small due to the small contact range between the probe and the flame, and once the flame monitoring cannot be carried out, the normal supply of fuel is easily cut off by a mounting control device of a combustor, so that the fuel cannot be combusted normally, and stable and excellent flame cannot be manufactured.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who solves: when the burner operates in different flame stages, namely, operates in a first-stage fire or a second-stage fire, the flame probe cannot normally monitor the flame, and further cannot manufacture stable and excellent flame.

The technical scheme of the utility model specifically does:

the utility model provides a flame monitoring devices of forced draft combustor, includes the combustor body, and the combustor body includes flame probe, and flame probe sets up at flame diffusion dish center and stretches out flame diffusion dish surface, and flame probe's length is 2/5~3/5 of flame diffusion dish diameter.

The burner body also comprises an ignition electrode, a diffusion cylinder speed reducer and a fuel gas output pipe; the ignition electrode is arranged on the flame diffusion disc and extends out of the surface of the flame diffusion disc, one end of the diffusion cylinder speed reducer is connected with an air source, and the other end of the diffusion cylinder speed reducer is uniformly arranged on the outer circumference of the flame diffusion disc and extends out of the surface of the flame diffusion disc; one end of the fuel gas output pipe is arranged in the center of the flame diffusion disc, and the other end of the fuel gas output pipe is connected with a fuel gas source.

The flame probe is an ionic probe.

The ionic probe is made of high-temperature alloy material.

Compared with the prior art, the utility model discloses a technological effect does: through setting up flame probe in the center of flame diffusion dish, to the improvement of flame probe length extension of flame monitor, increased the contact range of flame probe and flame, avoided the loaded down with trivial details step of flame probe installation and debugging process, guaranteed the flame probe to the normal monitoring of small fire and main flame, ensure combustor normal operating and avoided the emergence of repeated ignition, and then produce stable good flame.

Drawings

Fig. 1 is a structural diagram of the present invention.

Fig. 2 is a schematic view of the working state of the utility model with one section of fire.

Fig. 3 is a schematic view of the working state of the two-stage fire of the present invention.

In the attached figures 1-3, 1 flame probe, 2 ignition electrode, 3 flame diffusion disk, 4 diffusion cylinder speed reducer, 5 gas output pipe, 6 flame.

Detailed Description

As shown in fig. 1, a flame monitoring device of a blower type burner includes a burner body, and is characterized in that: the combustor body still includes flame probe 1, and flame probe 1 sets up at flame diffusion dish 3 center and stretches out flame diffusion dish 3 surfaces, and flame probe 1's length is 2/5~3/5 of flame diffusion dish 3 diameter, and the increase of being convenient for is guaranteed to carry out normal monitoring to flame with the contact range of flame, can satisfy one section fire simultaneously and two sections fire respectively the operation to flame monitoring's demand, has also avoided the loaded down with trivial details step of flame probe installation and debugging simultaneously.

As shown in fig. 1, the burner body further comprises an ignition electrode 2, a diffusion cylinder speed reducer 4 and a fuel gas output pipe 5; ignition electrode 2 sets up on flame diffusion dish 3 and stretches out flame diffusion dish 3 surface, and the air supply is connected to diffusion tube reduction gear 4's one end, and the other end evenly arranges on flame diffusion dish 3's outer circumference and stretch out flame diffusion dish 3 surface suitable distance, and diffusion tube reduction gear 4 can reduce the speed that the air flows, helps increasing the air flow area like this, and when the speed of air outlet diminishes, the ignition can also help safe ignition more easily.

As shown in fig. 1, one end of the gas output pipe 5 is arranged in the center of the flame diffusion plate 3, and the other end is connected with a gas source to provide fuel for combustion.

In order to ensure high flame detection sensitivity and strong anti-interference performance, the flame probe 1 adopts an ionic probe.

The ionic probe is made of high-temperature alloy material, and has the advantages of sensitivity to flame and no reaction to high temperature.

When the ignition electrode 2 is ignited, the burner control device itself regulates the supply of air and fuel, respectively, to the diffuser basket reducer 4 and to the gas outlet duct 5: when the burner runs on a section of fire, the end of the flame probe 1 close to the flame diffusion disc 3 can normally monitor the flame, and then the safety control device of the burner feeds back and adjusts the burner system, so that the diffusion cylinder speed reducer 4 and the gas output pipe 5 normally work, the normal supply of air and fuel is ensured, and the flame quality is stable; when the burner operates on a second segment of fire, because the position of the flame of the second segment of fire is moved forward relative to the surface of the flame diffusion plate 3 compared with the first segment of fire, the end of the flame probe 1 far away from the flame diffusion plate 3 can meet the requirement of normal monitoring of the second segment of flame, and normal supply of air and fuel can be ensured through feedback adjustment of a control device of the burner, so that the flame quality is stable.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.

Claims

1. The utility model provides a flame monitoring devices of blast type combustor, includes the combustor body, its characterized in that: the combustor body includes flame probe (1), flame probe (1) set up in flame diffusion dish (3) center and stretch out flame diffusion dish (3) surface, and the length of flame probe (1) is 2/5~3/5 of flame diffusion dish (3) diameter.

2. A flame monitor device of a blower type burner as set forth in claim 1, wherein: the burner body also comprises an ignition electrode (2), a diffusion cylinder speed reducer (4) and a fuel gas output pipe (5); the ignition electrode (2) is arranged on the flame diffusion disc (3) and extends out of the surface of the flame diffusion disc (3), one end of the diffusion cylinder speed reducer (4) is connected with an air source, and the other end of the diffusion cylinder speed reducer is uniformly arranged on the outer circumference of the flame diffusion disc (3) and extends out of the surface of the flame diffusion disc (3); one end of the fuel gas output pipe (5) is arranged in the center of the flame diffusion disc (3), and the other end is connected with a fuel gas source.

3. A flame monitor device of a blower type burner as set forth in claim 1, wherein: the flame probe (1) is an ionic probe.

4. A flame monitor device of a blower type burner as set forth in claim 3, wherein: the ionic probe is made of high-temperature alloy material.