CN214619669U

CN214619669U - Integrated flame detection device

Info

Publication number: CN214619669U
Application number: CN202022837547.0U
Authority: CN
Inventors: 高子龙; 王南; 刘博卿; 逯遥
Original assignee: Sichuan Xikema Electromechanical Equipment Co ltd
Current assignee: Sichuan Xikema Electromechanical Equipment Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-11-05
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses an integration flame detection device, including attach fitting, procapsid, the main casing body inlet wire and tail-hood, the left end fixedly connected with integrated into one piece's of procapsid attach fitting, the right-hand member fixedly connected with main casing body of procapsid, the inboard mid-mounting of the main casing body has the ultraviolet sensor who is horizontal distribution, the right-hand member fixedly connected with inlet wire of the main casing body, the right-hand member fixedly connected with tail-hood of inlet wire. The utility model adopts a combined integral structure, the whole shell structure of the detection device is formed by connecting and combining the connecting joint, the front shell, the wire inlet and the tail cover through screw threads, no mechanical movable part is arranged, the detection device is corrosion-resistant, stable and reliable, the service life is long, and no special maintenance is needed in long-term operation; meanwhile, the whole detection device has the advantages of high sensitivity, high response speed, long service life, strong anti-interference capability and insensitivity to sunlight, various lamplight and high-temperature radiation light, thereby prolonging the service life of the detection device.

Description

Integrated flame detection device

Technical Field

The utility model relates to an emergent unloading combustion apparatus technical field of natural gas especially relates to integration flame detection device.

Background

For large pulverized coal boilers, whether the combustion flame in a hearth is stable or not is the most important condition for ensuring safe and economic operation. When the combustion is unstable or improper, it causes part or all of the burners to be extinguished, lowering the production efficiency, and also generating pollution and noise. If the gas is continuously supplied to the burner, the surrounding environment of the well station or other equipment is polluted and hidden in safety. In order for such a phenomenon to occur, it is necessary to detect the burning flame effectively. The flame detector is the "eye" of the safety monitoring system to observe whether there is a flame. At present, flame detectors have been developed from common optical detectors (ultraviolet flame detectors, visible flame detectors, and infrared flame detectors) to flame image detectors, and conventional flame detection devices have a large size, low sensitivity, a large monitoring angle, weak interference resistance, and are susceptible to sunlight, light, temperature, infrared heat radiation, and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the technical problems of the technical defects in the above description, an integrated flame detection device is proposed.

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

integration flame detection device, including attach fitting, procapsid, main casing body inlet wire and tail-hood, the left end fixedly connected with integrated into one piece's attach fitting of procapsid, the right-hand member fixedly connected with main casing body of procapsid, the inboard mid-mounting of main casing body has the ultraviolet sensor who is horizontal distribution, the right-hand member fixedly connected with inlet wire of main casing body, the right-hand member fixedly connected with tail-hood of inlet wire, PCB is installed to the inboard of tail-hood.

As a further description of the above technical solution:

M60X1.5 inner screw holes are arranged on the inner side of the connecting joint.

As a further description of the above technical solution:

the inside demountable installation of procapsid has the condensing lens.

As a further description of the above technical solution:

and sealing O-shaped rings are embedded between the front shell and the main shell and between the wire inlet and the tail cover.

As a further description of the above technical solution:

the fixed connection mode is specifically a screw thread link.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model adopts a combined integral structure, the whole shell structure of the detection device is formed by connecting and combining the connecting joint, the front shell, the wire inlet and the tail cover through screw threads, no mechanical movable part is arranged, the detection device is corrosion-resistant, stable and reliable, the service life is long, and no special maintenance is needed in long-term operation; simultaneously, a condensing lens, an ultraviolet sensor and a PCB are sequentially arranged on the inner side of the shell structure from left to right, the condensing lens can seal and condense the detection end of the shell structure, so that the detection device is high in overall sensitivity, fast in response speed, long in service life, high in anti-interference capability and insensitive to sunlight, various lamplight and high-temperature radiation light, and the service life of the detection device is prolonged.

Drawings

FIG. 1 is a schematic diagram of an integrated flame detection device according to the present invention;

fig. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a schematic block diagram of the present invention;

fig. 4 is a spectral response diagram of the ultraviolet sensor of the present invention.

Illustration of the drawings:

1. connecting a joint; 101. M60X1.5 threaded holes; 2. a front housing; 201. a condenser lens; 3. a main housing; 4. a wire inlet; 5. sealing the O-shaped ring; 6. a tail cover; 7. an ultraviolet sensor; 8. a PCB is provided.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: integration flame detection device, including attach fitting 1, procapsid 2, main casing body 3 inlet 4 and tail-hood 6, the left end fixedly connected with integrated into one piece's attach fitting 1 of procapsid 2, the right-hand member fixedly connected with main casing body 3 of procapsid 2, the inboard mid-mounting of main casing body 3 has ultraviolet sensor 7 that is horizontal distribution, the right-hand member fixedly connected with inlet 4 of main casing body 3, the right-hand member fixedly connected with tail-hood 6 of inlet 4, PCB 8 is installed to the inboard of tail-hood 6.

Specifically, as shown in fig. 1-4, M60X1.5 inner screw hole 101 has been seted up to attach fitting 1's inboard, the inboard demountable installation of procapsid 2 has condensing lens 201, between procapsid 2 and the main casing body 3 and between wire inlet 4 and the tail-hood 6 all inlay and be equipped with sealed O type circle 5, fixed connection specifically is the screw thread and links, the chooseing for use of this kind of fixed mode, stability and sealed effect after the combination is assembled between the shell structure have been promoted, M60X1.5 inner screw hole 101's setting, be convenient for detection device's closure installation processing soon, condensing lens 201's setting, can carry out the gathering with received optical signal and handle, thereby ultraviolet sensor 7 received signal's effect has been promoted, sealed O type circle 5's setting, can make the connecting gap department between procapsid 2 and the main casing body 3 and wire inlet 4 and the tail-hood 6 carry out shutoff sealing process.

The working principle is as follows: when in use, firstly, according to the condition of a monitoring point, selecting a position which can reliably observe flame and is far away from a high-temperature area as far as possible (generally selecting an air inlet parallel to the axis of a burner), aligning a front shell 2 of the monitor with an observation point, screwing the front shell on a joint of a threaded hole 101 in M60X1.5 to ensure that the monitor can observe the existence or extinguishment of the flame through a connecting pipe, wherein the flame during the combustion of the flame emits light with various wavelengths from infrared to ultraviolet, wherein the light comprises the far ultraviolet rays with the wavelength of 185-260 nm which are sensitive to an ultraviolet sensor 7, the ultraviolet rays in the wave band are converged by a condenser lens 201 and then irradiate the ultraviolet sensor 7 to be converted into an electric pulse signal with the frequency changing along with the flame intensity, and the sensor is not sensitive to other light with the wavelength of 185-260 nm (ultraviolet sensor spectral response diagram), but only the flame, sparks and the like can emit the light in the wave band, therefore, the ultraviolet sensor 7 is insensitive to sunlight, various lamplight and high-temperature radiation light rays, so that interference of various stray light rays is avoided, and electric pulse signals generated by the ultraviolet sensor 7 are converted into standard instrument current signals and limiting value transistor switching value signals which change along with the intensity of flame and are output after a series of processing such as interference elimination, amplitude limiting, shaping, frequency-voltage conversion, nonlinear correction and the like of a flame signal amplifier.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Integration flame detection device, including attach fitting (1), procapsid (2), main casing body (3) inlet wire (4) and tail-hood (6), its characterized in that, the left end fixedly connected with integrated into one piece's attach fitting (1) of procapsid (2), the right-hand member fixedly connected with main casing body (3) of procapsid (2), the inboard mid-mounting of the main casing body (3) has ultraviolet sensor (7) that are horizontal distribution, the right-hand member fixedly connected with inlet wire (4) of the main casing body (3), the right-hand member fixedly connected with tail-hood (6) of inlet wire (4), PCB (8) are installed to the inboard of tail-hood (6).

2. The integrated flame detection device of claim 1, wherein the inner side of the connecting joint (1) is provided with M60X1.5 threaded holes (101).

3. The integrated flame detection device of claim 1, wherein a condenser lens (201) is detachably mounted to an inner side of the front case (2).

4. The integrated flame detection device according to claim 1, wherein a sealing O-ring (5) is embedded between the front housing (2) and the main housing (3) and between the wire inlet (4) and the tail cover (6).

5. The integrated flame detection device of claim 1, wherein the fixed connection is in particular a threaded link.