CN210571019U - Light source sensor and monitoring system - Google Patents

Abstract

The utility model provides a light source sensor and monitored control system, it has a leaded light post or light pipe and connects the cover that shields in leaded light post or light pipe one end, shield on the inner wall of cover and be provided with the collection board with leaded light post or light pipe hookup location's corresponding department, it passes through the design to light source sensor and monitored control system to be equipped with photosensitive element on the collection board, but the realization direct application is in the monitoring of flame state in the monitored control equipment, and the function that detects is not only, can detect flame state or flame intensity according to the needs of reality, be convenient for install and be convenient for maintain again and change and upgrade.

Description

Light source sensor and monitoring system

Technical Field

The utility model relates to a sensor, concretely relates to light source sensor and monitored control system.

Background

The flame monitor, also called an electric eye, is a device for sending a "flame present", "flame out" or "interrupt signal" to a control device, and generally comprises a sensor and a controller. In the chemical reaction process of the violent combustion of the fuel, in addition to the release of heat energy, ultraviolet rays, infrared rays, visible light, heat radiation, sound waves and the like are accompanied, and the energy is the basis for detecting the presence or absence of flame. Most of the commercially available flame sensors use infrared monitoring sensors, which have large volume, complex circuit structure and high cost. The sensor end also has no fixed mounting means and no structure for transmitting the introduced light source, and loses its basic function under high temperature conditions. A flame sensor that is used for energy-conserving cleaning equipment of high temperature steam at present is through the closed conduction structure of shading to the flame light source, and the daylighting passageway uses printing opacity component to the daylighting passageway need guarantee a straight line with the leading-in fixing of light source in structure end photosensitive element department, effectively discerns and then judges the interior flame combustion state of boiler to light, nevertheless can't directly use under the high temperature condition.

Flame monitoring is one of the detection means that must be provided for automatic control of industrial furnaces. For example, the open-close state of the burner is ensured by monitoring the flame of the burner; and monitoring the flame of the pilot burner at the exhaust port of the protective gas with the controllable atmosphere to ensure the safe operation of the furnace and the like. Although there are many methods for detecting flame, it is not always possible to receive satisfactory results when applied to different fuels or different types of boiler burners, and the reliability and accuracy of flame measurement are important criteria for safe operation and fire-extinguishing protection of boilers, so how to accurately detect the flame of a burner is a problem worthy of careful study.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a light source sensor, through the design to its structural design and monitored control system, can normally work under the high temperature condition, and the function that detects is not only, has adopted the design of integration simultaneously. Specifically, the method comprises the following steps:

the utility model provides a light source sensor, it has a light guide part to and connect the cover that shields in leaded light post or leaded light pipe one end, wherein, light guide part is leaded light post or leaded light pipe, shields on the inner wall of cover and is provided with the collection board with the department that corresponds of leaded light part hookup location, is equipped with photosensitive element on the collection board.

Further optionally, one end of the light guide component away from the shielding cover forms a bending structure.

Further optionally, the light guide member is a non-transparent light-shielding and light-reflecting material.

Further optionally, the light guide member has a length of greater than 10cm and less than or equal to 25 cm.

Further optionally, the shielding cover is formed by packaging rubber flame-retardant materials or metal plates.

Further optionally, the capture plate forms a fool-proof notch or divot to ensure the correct orientation of the assembly.

Further optionally, the photosensitive elements are distributed on the collecting plate to form an array arrangement, and further, the photosensitive elements are welded with the collecting plate in a plug-in mode.

The utility model also provides a monitored control system, monitored control system has the aforesaid arbitrary light source sensor.

Further optionally, the monitoring system further includes a transparent mirror, the transparent mirror is located at a light-passing position of the monitored device, and one end of the light guide component of the light source sensor, which is far away from the shielding cover, is hermetically connected with the transparent mirror.

Further optionally, the monitoring system further comprises an electrical appliance connecting wire, wherein one end of the electrical appliance connecting wire is connected with the photosensitive element, and the other end of the electrical appliance connecting wire is connected with the main control panel.

Further optionally, the monitoring system is for boiler flame monitoring.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.

Fig. 1 is a schematic structural design diagram of a light source sensor in an embodiment of the present invention;

FIG. 2 is a schematic view of a detection plate;

FIG. 3 is a schematic view of the installation structure of the light pipe or light pillar and the monitoring object;

in the figure:

1-a light guide; 2-a shielding cover; 3-collecting the plate; 4-a nut; 5-pipe thread; 6-a light-transmitting mirror; 7-photosensitive element, 8-output interface; 9-notches or notches

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two, but does not exclude the presence of at least one.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

Example 1:

for better explanation the utility model discloses the scheme, this embodiment provide a light source sensor example, specifically as fig. 1-2, it includes a light guide component 1 and connects the cover 2 that shields in light guide component 1 one end, wherein, light guide component 1 is leaded light post or light pipe, shields and is provided with acquisition board 3 with the department that corresponds of light guide component 1 hookup location on the inner wall of cover 2, is equipped with photosensitive element 7 on acquisition board 3.

Preferably, the photosensitive element 7 is cartridge welded to the acquisition plate 3 by means of a needle seat. The acquisition board 3 is also equipped with an output interface 8, which is located behind the light sensitive elements 7 to output the information acquired by the light sensitive elements.

Preferably, one end of the light guide component 1, which is far away from the shielding cover 2, forms a bending structure, preferably, the bending angle is more than 90 degrees, so that the monitoring distance is increased, thereby not only ensuring effective propagation of the light source, but also having a certain supporting strength enough to stably fix the photosensitive detection element and prolonging the service life of the light source sensor. Preferably, the light guide member 1 is a non-transparent light-shielding and light-reflecting material. The length of the light guide member 1 is preferably greater than 10cm and equal to or less than 25 cm.

Preferably, the shielding cover 2 is formed by packaging rubber flame-retardant materials or metal plates, and has the functions of water resistance, moisture resistance, dust resistance and shock resistance.

Preferably, the acquisition panel 3 forms a fool-proof notch or indentation 9 to ensure the correct orientation of the assembly. The photosensitive elements 7 arranged on the collecting plate 3 are used for collecting light source information and are arranged in an array mode, preferably, the light source sensor carries out self-checking through the consistency of the array photosensitive elements 7 so as to judge the working state.

The light source sensor of this embodiment can normally work under high temperature, can effectually spread the light source simultaneously and conduct photosensitive element department, and the design of light source sensor integration is convenient for install again be convenient for maintain change and upgrade simultaneously.

It is further noted that:

the photosensitive detection element 7 of the light source sensor in the present embodiment may be mounted in plural for synchronous detection and self-inspection.

The light guide member 1 in this embodiment may also be made of a copper tube, and is particularly suitable for use under the condition that flame detection needs to have a certain heat dissipation effect.

The round bending angle larger than 90 ° in this embodiment is not essential, but may be allowed as long as the requirements of the light source on the propagation and supporting strength can be met, and the embodiment employs a bending angle smaller than 90 °, and in order to improve the monitoring effect, the photosensitive detection element uses more than two for the sensor self-check.

Example 2:

for better illustration of the present invention, the present embodiment provides an embodiment of a monitoring system applied to boiler combustion monitoring, wherein the monitoring system has any one of the light source sensors as described above, as shown in fig. 1-3.

The monitoring system further comprises a light-transmitting mirror 6, the light-transmitting mirror 6 is located at the light-transmitting position of the monitored device, and one end, far away from the shielding cover, of the light guide component 1 of the light source sensor is connected with the light-transmitting mirror 6 in a sealing mode. Specifically, as shown in fig. 3, a nut 4 and a pipe thread 5 are arranged below the transparent mirror 6, and when the boiler is used, the pipe thread 5 is inserted on the boiler, is screwed down through the nut 4, and is then welded with the boiler cover. In order to realize signal transmission and processing, the monitoring system further comprises an electric appliance connecting wire, wherein one end of the electric appliance connecting wire is connected with the photosensitive element 7, and the other end of the electric appliance connecting wire is connected with the main control panel.

The monitoring system of the embodiment can work normally at high temperature and is applied to monitoring of combustion flame of the boiler. The light source is effectively passed to the light sensitive element 7 by the light source sensor. The photosensitive element 7 monitors the light source and then transmits signals to the main control panel, the main control panel transmits the signals to a terminal through a signal transmission line, and the preferable signal transmission line adopts a processing mode with shielding, has electromagnetic interference resistance and pressure-resistant and heat-resistant characteristics, and more accurately analyzes the combustion condition in the boiler through monitoring the intensity of the light source.

Preferably, in the monitoring system of this embodiment, the main control board is provided with a voltage dividing circuit, and the voltage dividing circuit acquires the voltage across the voltage dividing resistor to obtain the combustion condition in the boiler. Monitoring whether the boiler is burnt or not by using the detection state quantity of the voltage division circuit of the main control panel according to the actual requirement; the real-time light source intensity is monitored by monitoring different voltage values under different combustion conditions in the boiler through the detection analog quantity of the main control panel voltage division circuit, and the real-time intensity of flame combustion in the boiler can be obtained.

To sum up, the utility model provides a light source sensor and monitored control system can normally work under the high temperature. The analysis to the burning condition can monitor whether or not through the power of light source, both the monitoring is burnt, also can monitor real-time light source intensity through the different voltage value of monitoring under different burning conditions, can obtain the real-time intensity of flame burning. The integrated design is convenient for installation, maintenance, replacement and upgrading, and the cost is saved.

Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (11)

1. A light source sensor, characterized by: the light guide device is provided with a light guide component (1) and a shielding cover (2) connected to one end of the light guide component (1), wherein the light guide component (1) is a light guide column or a light guide pipe, an acquisition plate (3) is arranged on the inner wall of the shielding cover (2) corresponding to the connecting position of the light guide component (1), and a photosensitive element (7) is arranged on the acquisition plate (3).

2. The light source sensor of claim 1, wherein: one end of the light guide component (1) far away from the shielding cover (2) forms a bending structure.

3. The light source sensor of claim 2, wherein: the light guide component (1) is made of non-transparent shading and reflecting materials.

4. The light source sensor of claim 3, wherein: the length of the light guide component (1) is more than 10cm and less than or equal to 25 cm.

5. The light source sensor of claim 1, wherein: the shielding cover (2) is formed by packaging rubber flame-retardant materials or metal plates.

6. The light source sensor of claim 1, wherein: the collecting plate (3) forms a fool-proof notch or unfilled corner (9).

7. The light source sensor of claim 1, wherein: the light sensitive elements (7) form an array arrangement on the collecting plate (3).

8. A monitoring system, characterized by: the monitoring system has a light source sensor as claimed in any of claims 1 to 7.

9. The monitoring system of claim 8, wherein: the monitoring system further comprises a light transmitting mirror (6), the light transmitting mirror (6) is located at the light passing position of the monitored device, and one end, far away from the shielding cover (2), of the light guide component (1) of the light source sensor is connected with the light transmitting mirror (6) in a sealing mode.

10. The monitoring system of claim 9, wherein: the monitoring system further comprises an electrical appliance connecting wire, one end of the electrical appliance connecting wire is connected with the photosensitive element (7), and the other end of the electrical appliance connecting wire is connected with the main control panel.

11. A monitoring system according to any one of claims 8-10, characterized in that: the monitoring system is used for monitoring the flame of the boiler.

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