CN220728256U

CN220728256U - Changming lantern

Info

Publication number: CN220728256U
Application number: CN202321730348.7U
Authority: CN
Inventors: 严雅琪
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-03
Filing date: 2023-07-03
Publication date: 2024-04-05
Anticipated expiration: 2033-07-03

Abstract

The utility model discloses a pilot lamp, which relates to the field of chemical elements and comprises a butt flange, a filter, a venturi tube, an external sleeve, a mixing tube and an igniter; the gas is connected with the exhaust pipeline of the combustible gas through the butt flange, the combustible gas enters the venturi tube after passing through the filter, after the combustible gas passes through the venturi tube, the combustible gas at the outlet end of the venturi tube enters the mixing tube in a high-speed jet flow mode, a gap is reserved between the venturi tube and the mixing tube, external air can continuously enter the mixing tube from the external sleeve to be mixed with the combustible gas, and the mixed gas is ignited by the igniter at one end of the mixing tube far away from the venturi tube, so that the combustion of the combustible gas is realized. The utility model has simple structure and easy installation, does not need to use the air compressor to provide air for the combustion of the pilot burner, and uses the venturi tube to continuously suck the external air into the mixing tube, thereby saving the cost.

Description

Changming lantern

Technical Field

The utility model belongs to the field of chemical elements, and particularly relates to a pilot lamp.

Background

The pilot lamp is a special burning facility for treating combustible and combustible toxic gases and vapors which cannot be recovered and reprocessed by other factories or devices such as petrochemical plants, oil refineries and the like. Is an important measure for ensuring the safe production of factories and reducing environmental pollution. The pilot burner is used as important component equipment of a torch ignition system, directly relates to the safety problem of whether the torch gas can be ignited in time, is one of key parts of the torch system, and is widely applied to various torch systems. At present, a traditional pilot lamp generally adopts a semi-premixed combustion mode, an ejector of the traditional pilot lamp is arranged at the bottom of the pilot lamp, under the working condition, high-speed fuel flowing out of a fuel nozzle of a lamp body produces an ejection effect on surrounding air, and when the fuel and the air are mixed in a mixing pipe of the ejector, the fuel and the air are sent to the top of the pilot lamp for combustion. Traditional pilot burner is through setting up special tuber pipe and air compressor machine, with air feed gas pipeline to realize the mixture of gas and air, provide oxygen for the burning of gas.

However, since the air compressor and the duct are used for mixing, the electric power loss is large and the cost is high, and a low-cost pilot lamp is urgently needed.

Disclosure of Invention

In order to solve the above problems in the prior art, an object of the present utility model is to provide a pilot lamp.

The technical scheme adopted by the utility model is as follows:

a pilot lamp comprises a butt flange, a filter, a venturi tube, an external sleeve, a mixing tube and an igniter; the butt flange is used for being connected with a combustible gas discharge pipeline, one end of the filter is connected with the butt flange, the other end of the filter is connected with the large end of the venturi tube, the small end of the venturi tube is positioned in the tube cavity of the mixing tube, and a gap is reserved between the outer wall of the venturi tube and the inner wall of the mixing tube; two ends of the outer sleeve are respectively sleeved on the venturi tube and the mixing tube, and openings at two ends of the outer sleeve allow outside air to enter; the igniter is disposed at an end of the mixing tube remote from the venturi.

Optionally, the outer sleeve is provided with a plurality of first ventilation holes.

Optionally, the end of the outer sleeve close to the venturi tube is provided with a plurality of first ventilation holes.

Alternatively, the venturi tube is connected with the outer sleeve through a plurality of first supporting ribs.

Alternatively, the mixing tube is connected to the outer sleeve by a plurality of second support ribs.

Alternatively, the end of the mixing tube far away from the venturi tube is provided with a plurality of second ventilation holes.

The beneficial effects of the utility model are as follows:

the utility model provides a pilot lamp, which comprises a butt flange, a filter, a venturi tube, an external sleeve, a mixing tube and an igniter, wherein the butt flange is arranged on the outer sleeve; the butt flange is used for being connected with a combustible gas discharge pipeline, one end of the filter is connected with the butt flange, the other end of the filter is connected with the large end of the venturi tube, the small end of the venturi tube is positioned in the tube cavity of the mixing tube, and a gap is reserved between the outer wall of the venturi tube and the inner wall of the mixing tube; two ends of the outer sleeve are respectively sleeved on the venturi tube and the mixing tube, and openings at two ends of the outer sleeve allow outside air to enter; the igniter is disposed at an end of the mixing tube remote from the venturi. The gas is connected with the exhaust pipeline of the combustible gas through the butt flange, the combustible gas enters the venturi tube after passing through the filter, after the combustible gas passes through the venturi tube, the combustible gas at the outlet end of the venturi tube enters the mixing tube in a high-speed jet flow mode, a gap is reserved between the venturi tube and the mixing tube, two ends of the outer sleeve are opened, the gas pressure at the connecting port of the venturi tube and the mixing tube is lowered due to the combustible gas of the high-speed jet flow, therefore, the external air can continuously enter the mixing tube from the outer sleeve and is mixed with the combustible gas, and the mixed gas is ignited by the igniter at one end of the mixing tube far away from the venturi tube, so that the combustion of the combustible gas is realized. The utility model has simple structure and easy installation, does not need to use the air compressor to provide air for the combustion of the pilot burner, and uses the venturi tube to continuously suck the external air into the mixing tube, thereby saving the cost.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

FIG. 2 is a schematic view of the structure of the junction of the venturi and the mixing tube.

Fig. 3 is a schematic view of the connection structure of the mixing tube and the outer sleeve.

In the figure: 1-butt flange, 2-filter, 3-venturi, 4-outer sleeve, 41-first vent, 42-first support rib, 43-second support rib, 5-mixing tube, 51-second vent, 6-igniter.

Detailed Description

In this embodiment, a pilot lamp as shown in fig. 1 to 3 comprises a butt flange 1, a filter 2, a venturi tube 3, an outer sleeve 4, a mixing tube 5 and an igniter 6; the butt flange 1 is used for being connected with a combustible gas discharge pipeline; one end of the filter 2 is connected with the butt flange 1, the other end is connected with the large end of the venturi tube 3, the small end of the venturi tube 3 is positioned in the tube cavity of the mixing tube 5, and a gap is reserved between the outer wall of the venturi tube 3 and the inner wall of the mixing tube 5; the two ends of the outer sleeve 4 are sleeved on the venturi tube 3 and the mixing tube 5 respectively, and the openings at the two ends of the outer sleeve 4 allow outside air to enter; an igniter 6 is provided at an end of the mixing tube 5 remote from the venturi tube 3. The gas is connected with the discharge pipeline of the combustible gas through the butt flange 1, the combustible gas enters the venturi tube 3 after passing through the filter 2, after passing through the venturi tube 3, the combustible gas at the outlet end of the venturi tube 3 enters the mixing tube 5 in a high-speed jet mode, a gap is reserved between the venturi tube 3 and the mixing tube 5, and the gas pressure at the connection port of the venturi tube 3 and the mixing tube 5 is lowered due to the combustible gas of the high-speed jet mode, therefore, the external air can continuously enter the mixing tube 5 from the external sleeve 4 and is mixed with the combustible gas, and the mixed gas is ignited by the igniter 6 at one end, far away from the venturi tube 3, of the mixing tube 5, so that the combustion of the combustible gas is realized. The utility model has simple structure and easy installation, does not need to use an air compressor to provide air for the combustion of the pilot burner, and uses the venturi tube 3 to continuously suck the external air into the mixing tube 5, thereby saving the cost.

In this embodiment, the igniter 6 is an electric igniter.

In this embodiment, the outer sleeve 4 is provided with a plurality of first ventilation holes 41, and specifically, one end of the outer sleeve 4 near the venturi tube 3 is provided with a plurality of first ventilation holes 41. When the venturi tube 3 jets the combustible gas in a high-speed jet mode, the flow speed of the small end port of the venturi tube 3 is high, so that the air pressure is lower, external air enters from a gap between the venturi tube 3 and the mixing tube 5, and the external air smoothly enters into the external sleeve 4 through the first ventilation hole 41 to supplement the air at the jetting end of the venturi tube 3, so that the problem of insufficient air in the mixing tube 5 can be effectively prevented.

In this embodiment, as shown in fig. 2 and 3, the venturi tube 3 is connected to the outer sleeve 4 by a plurality of first support ribs 42, and the mixing tube 5 is connected to the outer sleeve 4 by a plurality of second support ribs 43.

Specifically, three first support ribs 42 are provided between the venturi tube 3 and the outer sleeve 4, and three second support ribs 43 are also provided between the mixing tube 5 and the outer sleeve 4.

In this embodiment, as shown in fig. 1, a plurality of second ventilation holes 51 are formed at one end of the mixing tube 5 far away from the venturi tube 3, and the second ventilation holes 51 are used for supplementing air at the ignition end, so as to prevent air shortage.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. A pilot lamp, characterized in that: comprises a butt flange (1), a filter (2), a venturi tube (3), an external sleeve (4), a mixing tube (5) and an igniter (6);

the butt flange (1) is used for being connected with a combustible gas discharge pipeline;

one end of the filter (2) is connected with the butt flange (1), the other end of the filter is connected with the large end of the venturi tube (3), the small end of the venturi tube (3) is positioned in the tube cavity of the mixing tube (5), and a gap is reserved between the outer wall of the venturi tube (3) and the inner wall of the mixing tube (5);

two ends of the outer sleeve (4) are respectively sleeved on the venturi tube (3) and the mixing tube (5), and openings at two ends of the outer sleeve (4) allow external air to enter;

the igniter (6) is arranged at one end of the mixing pipe (5) far away from the venturi tube (3).

2. A pilot lamp according to claim 1, characterized in that the outer sleeve (4) is provided with a number of first ventilation holes (41).

3. A pilot lamp according to claim 2, characterized in that the outer sleeve (4) is provided with a number of first ventilation holes (41) at the end near the venturi tube (3).

4. A pilot lamp according to claim 3, characterized in that the venturi tube (3) is connected to the outer sleeve (4) by means of a number of first support ribs (42).

5. A pilot lamp according to claim 4, characterized in that the mixing tube (5) is connected to the outer sleeve (4) by means of a number of second support ribs (43).

6. A pilot lamp according to claim 5, characterized in that the end of the mixing tube (5) remote from the venturi tube (3) is provided with a number of second ventilation holes (51).