CN215637146U - Spray gun structure and kiln system - Google Patents
Spray gun structure and kiln system Download PDFInfo
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- CN215637146U CN215637146U CN202121465691.4U CN202121465691U CN215637146U CN 215637146 U CN215637146 U CN 215637146U CN 202121465691 U CN202121465691 U CN 202121465691U CN 215637146 U CN215637146 U CN 215637146U
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- spray gun
- kiln
- mixing channel
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Abstract
The utility model discloses a spray gun structure and a kiln system, wherein the spray gun structure comprises a spray gun main body, a combustion-supporting pipe, a gas input pipe and a diffusion branch pipe, a mixing channel is arranged in the spray gun main body, the combustion-supporting pipe is connected with the spray gun main body and is communicated with the mixing channel, the combustion-supporting pipe is used for conveying combustion-supporting gas into the mixing channel, the gas input pipe is connected with the spray gun main body and is communicated with the mixing channel, the diffusion branch pipe is connected with the spray gun main body and is communicated with the mixing channel, and the diffusion branch pipe is used for inputting pressurized gas into the mixing channel. The spray gun main part can stretch into the kiln, and gas and combustion-supporting gas can mix in the mixing passage, through lighting the gas after mixing, can heat in the kiln, and the diffusion is divided the pipe and can be carried pressurized gas in to the mixing passage to increase mixing passage's atmospheric pressure, the flame that makes to light behind the mixed gas production can be as far as possible along sharp blowout, and flame can not upwards waft in the kiln this moment, can reduce the kiln upper portion and the lower part difference in temperature.
Description
Technical Field
The utility model relates to the technical field of spray gun equipment, in particular to a spray gun structure and a kiln system.
Background
The down-draft kiln is the most common kiln for firing refractory materials, temperature difference and thermal diffusion rate in the kiln have great influence on firing materials, the product is cracked in the firing process due to too large temperature difference in the kiln, the firing period of the product is prolonged due to low thermal diffusion rate, and therefore the adjustment of the spray gun is particularly important. The flame of the current spray gun device can float upwards in the kiln, so that more hot gas is accumulated on the upper part of the kiln, the temperature difference between the upper part and the lower part of the kiln is large, and the product can crack.
SUMMERY OF THE UTILITY MODEL
Based on the above, the utility model aims to overcome the problems in the prior art and provides a spray gun structure capable of reducing the temperature difference between the upper part and the lower part in a kiln and a kiln system.
The technical scheme is as follows:
a spray gun structure comprising:
the spray gun comprises a spray gun main body, wherein a mixing channel is arranged in the spray gun main body;
the combustion-supporting pipe is connected with the spray gun main body and communicated with the mixing channel, and the combustion-supporting pipe is used for conveying combustion-supporting gas into the mixing channel;
the gas input pipe is connected with the spray gun main body and communicated with the mixing channel; and
the diffusion branch pipe is connected with the spray gun main body and communicated with the mixing channel, and the diffusion branch pipe is used for inputting pressurized gas into the mixing channel.
Above-mentioned spray gun structure, the spray gun main part can stretch into the kiln, the gas input tube can be to the gas of mixing channel internal transport, combustion-supporting gas can be carried to the mixing channel to combustion-supporting pipe, gas and combustion-supporting gas can mix in the mixing channel, through lighting the gas after mixing, can heat in the kiln, the diffusion divides the pipe to carry pressurized gas in the mixing channel, in order to increase mixing channel's atmospheric pressure, improve the velocity of flow of the gas after mixing, make the flame that produces after lighting the gas mixture can follow straight line blowout as far as possible, flame can not float upwards in the kiln this moment, the heating effect to kiln upper portion and kiln lower part is similar, can reduce kiln upper portion and lower part difference in temperature, reduce the condition that the product in the kiln burns the in-process and appears the fracture, improve the weight of product.
In one embodiment, the lance body includes a jetting portion and a connecting portion, the jetting portion and the connecting portion are sequentially disposed along an extending direction of the mixing channel, the connecting portion is disposed outside the kiln, the jetting portion is configured to extend into the kiln, an opening of the mixing channel is disposed on the jetting portion, and the combustion-supporting pipe, the diffusion branch pipe and the gas input pipe are connected to the connecting portion.
In one embodiment, the lance body is a tubular structure, and the connecting portion has an inner diameter greater than an inner diameter of the discharge portion.
In one embodiment, the gas inlet pipe and the diffusion branch pipe are connected to an end surface of the ejection part away from the connection part, and the combustion supporting pipe is connected to a side surface of the ejection part.
In one embodiment, the joint of the combustion supporting pipe and the spraying part is lower than the joint of the fuel gas input pipe and the spraying part.
In one embodiment, a mounting flange plate used for being connected with the kiln is arranged at the connection position of the connecting part and the ejecting part.
In one embodiment, the lance body comprises a main pipe and a cover, the cover is detachably connected with one end face of the main pipe, the gas input pipe and the diffusion branch pipe are connected with the cover, and the cover and the main pipe are matched to enclose the mixing channel.
In one embodiment, a first protrusion and a second protrusion are arranged on one side, away from the main pipe, of the sealing cover, a first input channel communicated with the mixing channel is arranged in the first protrusion, a second input channel communicated with the mixing channel is arranged in the second protrusion, the first input channel and the second input channel both extend along the direction of the mixing channel, the gas input pipe is connected with the side face of the first protrusion, and the diffusion branch pipe is connected with the side face of the second protrusion.
In one embodiment, the inner diameter of the combustion supporting pipe is larger than that of the gas input pipe.
A kiln system comprises a kiln and the spray gun structure, wherein a high-temperature cavity is arranged in the kiln, the main body of the spray gun extends into the high-temperature cavity, and the combustion-supporting pipe, the diffusion branch pipe and the fuel gas input pipe are arranged outside the kiln.
Above-mentioned kiln system, the spray gun main part can stretch into the kiln, the gas input tube can carry the gas to the mixing channel in, combustion-supporting pipe can carry combustion-supporting gas to the mixing channel in, gas and combustion-supporting gas can mix in the mixing channel, through lighting the gas after mixing, can heat the high temperature chamber, the diffusion divides the pipe to carry pressurized gas to the mixing channel in, in order to increase the atmospheric pressure of mixing channel, improve the velocity of flow of the gas after mixing, make the flame that produces after lighting the mixed gas can spout along the straight line as far as possible, flame can not float upwards in the high temperature chamber at this moment, the heating effect to high temperature chamber upper portion and high temperature chamber lower part is similar, can reduce the high temperature chamber upper portion and lower part difference in temperature, reduce the condition that the product firing in-process appearance fracture in the high temperature chamber, improve the weight of product.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and are not intended to limit the utility model.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is an oblique view of a spray gun construction according to an embodiment of the present invention;
fig. 2 is a partial structural schematic view of a spray gun structure according to an embodiment of the present invention.
Description of reference numerals:
100. the gas burner comprises a burner body, 101, a main pipe, 102, a sealing cover, 103, a first bulge, 104, a second bulge, 110, a spraying part, 120, a connecting part, 130, an installation flange plate, 200, a combustion supporting pipe, 300, a gas input pipe, 400 and a diffusion branch pipe.
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.
As shown in fig. 1, an embodiment discloses a spray gun structure, which includes a spray gun main body 100, a combustion-supporting pipe 200, a gas input pipe 300 and a diffusion branch pipe 400, wherein a mixing channel is arranged in the spray gun main body 100, the combustion-supporting pipe 200 is connected with the spray gun main body 100, the combustion-supporting pipe 200 is communicated with the mixing channel, the combustion-supporting pipe 200 is used for conveying combustion-supporting gas into the mixing channel, the gas input pipe 300 is connected with the spray gun main body 100, the gas input pipe 300 is communicated with the mixing channel, the diffusion branch pipe 400 is connected with the spray gun main body 100, the diffusion branch pipe 400 is communicated with the mixing channel, and the diffusion branch pipe 400 is used for inputting pressurized gas into the mixing channel.
Above-mentioned spray gun structure, spray gun main part 100 can stretch into the kiln, gas input tube 300 can be to the mixing channel in carry the gas, combustion-supporting pipe 200 can carry combustion-supporting gas to the mixing channel in, gas and combustion-supporting gas can mix in the mixing channel, through lighting the gas after mixing, can heat in the kiln, diffusion minute pipe 400 can carry pressurized gas to the mixing channel in, in order to increase the atmospheric pressure of mixing channel, improve the velocity of flow of the gas after mixing, make the flame that produces after lighting the mixing gas can spout along the straight line as far as possible, flame can not upwards float in the kiln this moment, the heating effect to kiln upper portion and kiln lower part is similar, can reduce kiln upper portion and lower part difference in temperature, reduce the condition that the product in the kiln burns the in-process and appears the fracture, improve the weight of product.
The combustion-supporting gas can be air or other oxygen-containing gas. The blower can be used to input the combustion-supporting gas into the mixing channel.
In one embodiment, as shown in fig. 1, the lance body 100 includes a discharge portion 110 and a connection portion 120 sequentially disposed along an extending direction of the mixing channel, the connection portion 120 is disposed outside the kiln, the discharge portion 110 is disposed to extend into the kiln, an opening of the mixing channel is disposed on the discharge portion 110, and the combustion-supporting pipe 200, the diffuser 400, and the gas inlet pipe 300 are connected to the connection portion 120. The combustion-supporting gas and the fuel gas can be mixed in the connecting part 120 when entering the mixing channel, and are sprayed out and ignited into flame through the spraying part 110.
In one embodiment, as shown in FIG. 1, the torch body 100 has a tubular structure, and the connecting portion 120 has an inner diameter greater than that of the spouting portion 110. At this time, the gas and the combustion-supporting gas can be sufficiently mixed in the connecting portion 120, and after entering the spraying portion 110, the gas pressure after mixing is increased due to the fact that the inner diameter is reduced, the flow rate can be increased, the spraying speed of the mixed gas is increased, and the situation that flame after the mixed gas is ignited floats upwards can be reduced.
Optionally, a connection portion between the inner wall of the connection portion 120 and the inner wall of the spraying portion 110 is a conical structure, so that the mixed gas enters the spraying portion 110 more smoothly, the obstruction of the mixed gas is reduced, and the flow rate of the mixed gas is faster.
In one embodiment, as shown in fig. 1, the gas supply pipe 300 and the diffusion branch pipe 400 are connected to an end surface of the discharge unit 110 away from the connection unit 120, and the combustion-supporting pipe 200 is connected to a side surface of the discharge unit 110. At the moment, the directions of the fuel gas and the combustion-supporting gas entering the mixing channel are different, so that the fuel gas and the combustion-supporting gas are in contact and are fully mixed.
In one embodiment, as shown in fig. 1, the connection between the combustion-supporting pipe 200 and the spouting portion 110 is lower than the connection between the gas supply pipe 300 and the spouting portion 110. The specific gravity of the gas is low, and the joint of the combustion-supporting pipe 200 and the ejection part 110 is low, so that safety accidents caused by the gas entering the combustion-supporting pipe 200 can be prevented.
In one embodiment, as shown in fig. 1, a mounting flange 130 for connecting to a kiln is provided at the connection of the connection part 120 and the ejection part 110. The lance body 100 is conveniently secured to the kiln by means of a mounting flange 130.
In one embodiment, as shown in fig. 1 and 2, the lance body 100 includes a main tube 101 and a cover 102, the cover 102 is detachably connected to an end surface of the main tube 101, the gas inlet tube 300 and the diffuser sub-tube 400 are connected to the cover 102, and the cover 102 and the main tube 101 cooperate to form a mixing channel. At this time, different end covers can be selected to connect with the main pipe 101 according to requirements, and meanwhile, the connection parts of the spray gun main body 100, the fuel gas input pipe 300 and the diffusion branch pipe 400 can be maintained conveniently.
In one embodiment, as shown in fig. 1 and 2, a first protrusion 103 and a second protrusion 104 are disposed on a side of the sealing cover 102 away from the main pipe 101, a first input channel communicated with the mixing channel is disposed in the first protrusion 103, a second input channel communicated with the mixing channel is disposed in the second protrusion 104, the first input channel and the second input channel both extend along the direction of the mixing channel, the gas input pipe 300 is connected with a side surface of the first protrusion 103, and the diffusion branch pipe 400 is connected with a side surface of the second protrusion 104. At the moment, the direction of the fuel gas and the pressurized gas entering the mixing channel is not the extending direction of the mixing channel, so that the fuel gas can be prevented from passing through the mixing channel too fast, and the fuel gas and the combustion-supporting gas are fully mixed.
In one embodiment, as shown in fig. 1, the inner diameter of the combustion supporting pipe 200 is larger than the inner diameter of the gas input pipe 300. Can ensure to improve sufficient oxygen and improve the combustion efficiency of fuel gas.
An embodiment discloses a kiln system, which comprises a kiln and a spray gun structure according to any one of the above embodiments, wherein a high-temperature cavity is arranged in the kiln, a main body 100 of the spray gun extends into the high-temperature cavity, and a combustion-supporting pipe 200, a diffusion branch pipe 400 and a fuel gas input pipe 300 are arranged outside the kiln.
Above-mentioned kiln system, spray gun main part 100 can stretch into the kiln, gas input tube 300 can be to the mixing channel in carry the gas, combustion-supporting pipe 200 can carry combustion-supporting gas to the mixing channel in, gas and combustion-supporting gas can mix in the mixing channel, gas after mixing through lighting, can heat the high temperature chamber, diffusion minute pipe 400 can carry pressurized gas to the mixing channel in, in order to increase the atmospheric pressure of mixing channel, improve the velocity of flow of gas after mixing, make the flame that produces after lighting the mixing gas can spout along the straight line as far as possible, flame can not upwards float in the high temperature chamber this moment, the heating effect to high temperature chamber upper portion and high temperature chamber lower part is similar, can reduce high temperature chamber upper portion and lower part difference in temperature, reduce the condition that the product firing in-process appearance fracture in the high temperature chamber, improve the weight of product.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
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 utility model. 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.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" 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," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Claims (10)
1. A spray gun construction, comprising:
the spray gun comprises a spray gun main body, wherein a mixing channel is arranged in the spray gun main body;
the combustion-supporting pipe is connected with the spray gun main body and communicated with the mixing channel, and the combustion-supporting pipe is used for conveying combustion-supporting gas into the mixing channel;
the gas input pipe is connected with the spray gun main body and communicated with the mixing channel; and
the diffusion branch pipe is connected with the spray gun main body and communicated with the mixing channel, and the diffusion branch pipe is used for inputting pressurized gas into the mixing channel.
2. The lance structure according to claim 1, wherein the lance body includes a spouting portion and a connecting portion which are sequentially provided along an extending direction of the mixing passage, the connecting portion is provided outside the kiln, the spouting portion is provided to extend into the kiln, an opening of the mixing passage is provided on the spouting portion, and the combustion supporting pipe, the diffuser branch pipe, and the gas inlet pipe are connected to the connecting portion.
3. The lance structure of claim 2, wherein the lance body is a tubular structure, and the connecting portion has an inner diameter greater than an inner diameter of the discharge portion.
4. The lance structure according to claim 3, wherein the gas inlet pipe and the diffuser branch pipe are connected to an end surface of the ejection part remote from the connection part, and the combustion supporting pipe is connected to a side surface of the ejection part.
5. The lance structure according to claim 4, wherein the junction of the combustion supporting pipe and the ejection portion is lower than the junction of the gas inlet pipe and the ejection portion.
6. The lance structure of claim 3 wherein the junction of the connection section and the lance discharge section is provided with a mounting flange for connection to the kiln.
7. The lance structure of claim 1, wherein the lance body includes a main tube and a cover, the cover is detachably connected to an end face of the main tube, the gas inlet tube and the diffuser manifold are connected to the cover, and the cover and the main tube cooperate to define the mixing channel.
8. The lance structure according to claim 7, wherein a first protrusion and a second protrusion are provided on a side of the cover facing away from the main pipe, a first input channel communicated with the mixing channel is provided in the first protrusion, a second input channel communicated with the mixing channel is provided in the second protrusion, the first input channel and the second input channel both extend along the direction of the mixing channel, the gas input pipe is connected with a side surface of the first protrusion, and the diffusion branch pipe is connected with a side surface of the second protrusion.
9. The lance structure according to any one of claims 1 to 8, wherein the internal diameter of the combustion supporting tube is greater than the internal diameter of the gas inlet tube.
10. A kiln system, comprising a kiln and a lance structure according to any one of claims 1 to 9, wherein a high temperature chamber is provided in the kiln, a main body of the lance extends into the high temperature chamber, and the combustion supporting tube, the diffusion branch tube and the gas input tube are provided outside the kiln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121465691.4U CN215637146U (en) | 2021-06-29 | 2021-06-29 | Spray gun structure and kiln system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121465691.4U CN215637146U (en) | 2021-06-29 | 2021-06-29 | Spray gun structure and kiln system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215637146U true CN215637146U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121465691.4U Active CN215637146U (en) | 2021-06-29 | 2021-06-29 | Spray gun structure and kiln system |
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|---|---|
| CN (1) | CN215637146U (en) |
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2021
- 2021-06-29 CN CN202121465691.4U patent/CN215637146U/en active Active
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