CN104062003B - A kind of flame detection device being conveniently adjusted relative to the distance of test point - Google Patents

A kind of flame detection device being conveniently adjusted relative to the distance of test point Download PDF

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Publication number
CN104062003B
CN104062003B CN201410304092.2A CN201410304092A CN104062003B CN 104062003 B CN104062003 B CN 104062003B CN 201410304092 A CN201410304092 A CN 201410304092A CN 104062003 B CN104062003 B CN 104062003B
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China
Prior art keywords
detector
cooling
shell
airducts
airduct
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CN201410304092.2A
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CN104062003A (en
Inventor
罗元林
陈和兵
黄成国
汪小婷
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Sichuan Tianwei Electronic Co Ltd
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Sichuan Tianwei Electronic Co Ltd
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Abstract

The invention discloses a kind of flame detection device being conveniently adjusted relative to the distance of test point, including detector body, cooling portion and fixed part, detector body includes that shell, shell are tubular structure;Cooling portion includes two airducts and the adjustment portion of series connection, and adjustment portion includes hooping tube and two anchor ears, hooping tube is provided through the through hole at its two ends;Fixed part includes installing plate, and the free end of an airduct is fixing with the opening of detector body shell to be connected, and the free end of another pipe that follows the wind is fixedly connected on installing plate;It is additionally provided with air outlet on the shell of detector body.Present configuration is simple, and detector body has good spacing tuning performance relative to monitoring point, and installing of the present invention can be facilitated to adjust with spacing in use;Meanwhile, the structure of the present invention advantageously ensures that the long-term sensitivity of the present invention and excellent cooling-down effect.

Description

A kind of flame detection device being conveniently adjusted relative to the distance of test point
Technical field
The present invention relates to a kind of safety monitoring device for supervising flame conditions, particularly relate to a kind of flame detection device being conveniently adjusted relative to the distance of test point.
Background technology
The places such as the living environment of chemical plant, oil plant, transformer station, industry warehouse, the most common diesel generator room as Emergency Power, people at present; all there is the combustible of gaseous state or solid-state; the most numerous industrial control equipments; or complicated living environment; if fire is strictly monitored by these occasions, protection greatly will be safely provided for the life of safeguarding of assets and people.
Flame detector is also known as photosensitizing type fire detector, it is the light characteristic for responding fire, i.e. detect a kind of fire detector of the intensity of illumination of flame combustion and the flicker frequency of flame, prior art Flame detection device is usually and encapsulates Infrared Detectors in aluminum matter or cabinet, flame detector is typically mounted at the place easily having fire to occur, it has the accuracy of detection of less scanning angle and distance, i.e. flame detector bigger with the distance relation of the angle of monitoring position by it.Installing of prior art Flame detector is generally the position first determining sensing part, front end, determine the fixing point of flame detector again, but during installing or using, the position change of fixing point during the fixed error of fixing point and use, all influence whether the accuracy of detection of flame detector, be unfavorable for ensureing the detection performance that flame detector is stable.
Summary of the invention
Installing or during use in above-mentioned prior art, the position change of fixing point during the fixed error of fixing point and use, all influence whether the accuracy of detection of flame detector, it is unfavorable for ensureing the detection performance issue that flame detector is stable, the invention provides a kind of flame detection device being conveniently adjusted relative to the distance of test point.
For solving the problems referred to above, a kind of flame detection device being conveniently adjusted relative to the distance of test point that the present invention provides solves problem by techniques below main points: a kind of flame detection device being conveniently adjusted relative to the distance of test point, including detector body, cooling portion and fixed part, described detector body includes shell, described shell is tubular structure, and the two ends in cooling portion are connected on opening and the fixed part of detector body shell;
Described cooling portion includes two airducts of series connection and for adjusting the adjustment portion of cooling minister's degree, described adjustment portion includes hooping tube and two anchor ears being set on hooping tube, the through hole at its two ends it is provided through on hooping tube, one end of two airducts is stretched in hooping tube by the different ends of through hole respectively, and two airducts are connected by an anchor ear and hooping tube are fixing respectively, the optional position on airduct is additionally provided with air intake vent;
Described fixed part includes installing plate, and the free end of an airduct is fixing with the opening of detector body shell to be connected, and the free end of another pipe that follows the wind is fixedly connected on installing plate;
It is additionally provided with air outlet on the shell of described detector body.
Concrete, the detector body of setting is for the monitoring of flame, and the cooling portion of setting is for the purging cooling of detector body, so that the present invention is applicable to hot environment, the cooling portion simultaneously arranged and fixed part are additionally operable to the support of detector body.During the structure of fixed part is arranged, installing plate is fixed for the installation of the present invention;The structure design of cooling portion upcast ventilation pipe stagewise can the annexation of two airducts and hooping tube, can make changing the change that two airducts are respectively relative to the built-in length of hooping tube, change the overall length of two airducts after connecting, to reach to change the technique effect that detector body changes relative to monitoring point distance;In the present invention, cooling wind is entered in the shell of cooling portion and detector body by air intake vent, so, cool down the wind gas not with installation environment of the present invention to contact, relative to the outside purging type of cooling used in prior art, can prevent to detector body, the material purging suspended around flame detector is produced enrichment, so present invention can avoid sensitivity decrease that above-mentioned enrichment brings and thermal resistance to become big, so, be conducive to extending the maintenance period of the present invention, ensure the long-term sensitivity of the present invention and to the excellent cooling-down effect of the present invention.
Further technical scheme is:
For making cooling portion in the present invention have longer length adjusting range, the airduct at described hooping tube two ends is round tube, and the diameter reducing of two airducts, and the duct sleeve being relatively large in diameter is located on the airduct that diameter is less.Meanwhile, in two airducts, the contact in outside also helps the rigidity in cooling portion, is beneficial to its enabling capabilities to detector body.
For making two airducts have compact matching relationship, being beneficial to the position ensureing detector body relative to monitoring point, the beneficially Detection results of the present invention, the spacing between two, cooling portion airduct is not more than 0.3mm.
For preventing from forming cooling wind dead angle on the shell of detector body, the quantity of described air outlet is multiple.
Deformation for ease of hooping tube, realize hooping tube and pass through the clamping to airduct of the compressive stress of anchor ear, the two ends of described hooping tube are also respectively provided with the groove in outside at least one runs through each, and two airducts are all arranged with at least one sealing ring with on the connection end of hooping tube respectively.The sealing ring arranged sealing at the junction point of hooping tube and airduct, to reduce the leakage current of cooling wind.
For ease of the fixing of described anchor ear and banding, described hooping tube being additionally provided with four annular protrusions, described annular protrusion lays respectively at two anchor ear both sides.
The method have the advantages that
1, the structure design of cooling portion upcast ventilation pipe stagewise can the annexation of two airducts and hooping tube, can make changing the change that two airducts are respectively relative to the built-in length of hooping tube, change the overall length of two airducts after connecting, to reach to change the technique effect that detector body changes relative to monitoring point distance, arrangement above makes the detector body of the present invention have good distance tuning performance relative to monitoring point, and installing of the present invention can be facilitated to adjust with distance in use.
2, in the present invention, cooling wind is entered in the shell of cooling portion and detector body by air intake vent, so, cool down the wind gas not with installation environment of the present invention to contact, relative to the outside purging type of cooling used in prior art, can prevent to detector body, the material purging suspended around flame detector is produced enrichment, so present invention can avoid sensitivity decrease that above-mentioned enrichment brings and thermal resistance to become big, so, be conducive to extending the maintenance period of the present invention, ensure the long-term sensitivity of the present invention and to the excellent cooling-down effect of the present invention.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of one specific embodiment of flame detection device being conveniently adjusted relative to the distance of test point of the present invention.
Figure acceptance of the bid note is respectively as follows: 1, detector body, and 2, air outlet, 3, hooping tube, 4, air intake vent, 5, installing plate, 6, annular protrusion, 7, anchor ear, 8, airduct.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but the structure of the present invention is not limited only to following example.
Embodiment 1:
Such as Fig. 1, a kind of flame detection device being conveniently adjusted relative to the distance of test point, including detector body 1, cooling portion and fixed part, described detector body 1 includes shell, described shell is tubular structure, and the two ends in cooling portion are connected on opening and the fixed part of detector body 1 shell;
Described cooling portion includes two airducts 8 of series connection and for adjusting the adjustment portion of cooling minister's degree, described adjustment portion includes hooping tube 3 and two anchor ears 7 being set on hooping tube 3, the through hole at its two ends it is provided through on hooping tube 3, one end of two airducts 8 is stretched in hooping tube 3 by the different ends of through hole respectively, and two airducts 8 are connected by an anchor ear 7 is fixing with hooping tube 3 respectively, the optional position on airduct 8 is additionally provided with air intake vent 4;
Described fixed part includes installing plate 5, and the free end of an airduct 8 is fixing with the opening of detector body 1 shell to be connected, and another free end following the wind pipe 8 is fixedly connected on installing plate 5;
It is additionally provided with air outlet 2 on the shell of described detector body 1.
In the present embodiment, the airduct 8 of setting uses zinc-plated pipe, to save the use cost of the present invention;Connect on the arrival end of the air intake vent 4 arranged and have flexible pipe and filter, the filter arranged is for eliminating the impurity in cooling wind, the flexible pipe arranged is for offsetting the airduct for being connected or present invention thermal deformation under heat stress with air intake vent 4, to ensure the detector body 1 angle and distance relative to sensing point.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, such as Fig. 1, for making cooling portion in the present invention have longer length adjusting range, the airduct 8 at described hooping tube 3 two ends is round tube, and the diameter reducing of two airducts 8, the airduct 8 being relatively large in diameter is set on the less airduct of diameter 8.Meanwhile, in two airducts 8, the contact in outside also helps the rigidity in cooling portion, is beneficial to its enabling capabilities to detector body 1.
For making two airducts 8 have compact matching relationship, being beneficial to the position ensureing detector body 1 relative to monitoring point, the beneficially Detection results of the present invention, the spacing between two, cooling portion airduct 8 is not more than 0.3mm.
In the present embodiment, for ease of choosing of airduct 8, the specification of airduct 8 is chosen from the pipe of standard nominal diameter, and such as supporting the use of DN40 with DN32 airduct, the guarantee of above spacing size can be by the in addition simple realization of the form of spot welding crator on the airduct outer wall of DN32.
Embodiment 3:
The present embodiment is further qualified on the basis of embodiment 1, and such as Fig. 1, for preventing from forming cooling wind dead angle on the shell of detector body 1, the quantity of described air outlet 2 is multiple.Multiple air outlet 2 is i.e. set on the shell of detector body 1, each position in shell is made all to have the cooling wind of flowing, further, requiring that pressure cools down strong place, the most intensive air outlet 2 can be set on shell or export bigger air outlet 2.
Embodiment 4:
The present embodiment is further qualified on the basis of above example, such as Fig. 1, deformation for ease of hooping tube 3, realize hooping tube 3 and pass through the clamping to airduct 8 of the compressive stress of anchor ear 7, the two ends of described hooping tube 3 are also respectively provided with the groove in outside at least one runs through each, and two airducts 8 are all arranged with at least one sealing ring with on the connection end of hooping tube 3 respectively.The sealing ring arranged sealing at the junction point of hooping tube 3 and airduct 8, to reduce the leakage current of cooling wind.Preferably, described sealing ring uses backbone sealing ring.
Embodiment 5:
The present embodiment is further qualified on the basis of above example, such as Fig. 1, for ease of the fixing of described anchor ear 7 and banding, described hooping tube 3 is additionally provided with four annular protrusions 6, and described annular protrusion 6 lays respectively at two anchor ear 7 both sides.
Above content is to combine the further description that the present invention is made by concrete preferred implementation, it is impossible to assert that the detailed description of the invention of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, other embodiments drawn under without departing from technical scheme, should be included in protection scope of the present invention.

Claims (3)

1. the flame detection device being conveniently adjusted relative to the distance of test point, including detector body (1), cooling portion and fixed part, it is characterized in that, described detector body (1) includes shell, described shell is tubular structure, and the two ends in cooling portion are connected on opening and the fixed part of detector body (1) shell;
Described cooling portion includes two airducts (8) of series connection and for adjusting the adjustment portion of cooling minister's degree, described adjustment portion includes hooping tube (3) and two anchor ears (7) being set on hooping tube (3), the through hole at its two ends it is provided through on hooping tube (3), one end of two airducts (8) is stretched in hooping tube (3) by the different ends of through hole respectively, and two airducts (8) are connected by an anchor ear (7) and hooping tube (3) are fixing respectively, the optional position on airduct (8) is additionally provided with air intake vent (4);
Described fixed part includes installing plate (5), and the free end of an airduct (8) is fixing with the opening of detector body (1) shell to be connected, and another free end following the wind pipe (8) is fixedly connected on installing plate (5);
Air outlet (2) it is additionally provided with on the shell of described detector body (1);The airduct (8) at described hooping tube (3) two ends is round tube, and the diameter reducing of two airducts (8), and the airduct being relatively large in diameter (8) is set on the less airduct of diameter (8);Spacing between two airducts (8) is not more than 0.3mm;The quantity of described air outlet (2) is multiple.
A kind of flame detection device being conveniently adjusted relative to the distance of test point the most according to claim 1, it is characterized in that, the two ends of described hooping tube (3) are also respectively provided with the groove in outside at least one runs through each, and two airducts (8) are all arranged with at least one sealing ring with on the connection end of hooping tube (3) respectively.
A kind of flame detection device being conveniently adjusted relative to the distance of test point the most according to claim 1, it is characterized in that, being additionally provided with four annular protrusions (6) on described hooping tube (3), described annular protrusion (6) lays respectively at two anchor ear (7) both sides.
CN201410304092.2A 2014-06-30 2014-06-30 A kind of flame detection device being conveniently adjusted relative to the distance of test point Active CN104062003B (en)

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Application Number Priority Date Filing Date Title
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Address after: No. 233, Wulian 1st Road, Gongxing street, Shuangliu District, Chengdu, Sichuan 610000

Patentee after: Sichuan tianmicroelectronics Co., Ltd

Address before: 610000 No. 12, Cheng Cheng Road, Longtan Industrial Development Zone, Longtan, Chengdu, Sichuan, Chenghua District

Patentee before: SICHUAN TIANWEI ELECTRONIC Co.,Ltd.