CN212584941U - Device is examined to fire of preventing congealing - Google Patents
Device is examined to fire of preventing congealing Download PDFInfo
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- CN212584941U CN212584941U CN202020834175.3U CN202020834175U CN212584941U CN 212584941 U CN212584941 U CN 212584941U CN 202020834175 U CN202020834175 U CN 202020834175U CN 212584941 U CN212584941 U CN 212584941U
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Abstract
According to the utility model discloses a prevent condensation water fire detection device, including fire detection detector and fire detection protection casing, fire detection detector has outstanding detection head for detecting the flame signal of combustor; the protection casing setting is examined to the fire, a contact for completely cutting off detection head and comdenstion water, the overhead flame signal receiving terminal that has of detection, the fire is examined the protection casing and is had housing and light-passing board, the housing has the straight tube, the equal opening in both ends, the one end opening part is provided with outside extension's connection terminal surface, it is perpendicular with the straight tube axis to connect the terminal surface, be provided with a plurality of connect the through-hole on the connection terminal surface, the side of straight tube is provided with the side through-hole, be provided with straight keyway on the straight tube inner wall, the fire is examined the detector and is examined the protection casing with the fire and pass through the key-type connection, the light-passing board sets up on the side through-hole, the fire is examined the protection casing and is passed.
Description
Technical Field
The utility model belongs to the industrial boiler field, concretely relates to prevent that condensation fire examines device.
Background
Since 2015, the low-nitrogen environmental protection improvement is carried out from Beijing in China, the standard that the emission of nitrogen oxides is lower than 30mg/Nm3 is implemented, and the burners of various manufacturers meet the low-nitrogen emission and have certain disadvantages: for a fully premixed metal surface combustor which does not use flue gas external circulation, the emission of nitrogen oxides can meet the use requirement, and the problem of condensed water does not exist, but certain combustion potential safety hazards exist in the equipment.
The problem of condensed water exists in burners using the flue gas external circulation technology, and the generation of the condensed water causes a large amount of moisture in combustion air, so that the detection signal of a fire detector is attenuated, and the fire detector is damaged in serious cases; as most of burners in the market use equipment with flue gas external circulation, the problem of influence of condensed water on fire detection is solved.
SUMMERY OF THE UTILITY MODEL
The present invention has been made to solve the above problems, and an object of the present invention is to provide a condensation-preventing fire detection device.
The utility model provides a condensation-proof fire detection device, which is characterized in that the device comprises a fire detection detector and a detection head which is provided with a salient and is used for detecting the flame signal of a burner; and fire detection protective cover, the setting is on detecting the head, a contact for completely cutting off detection head and comdenstion water, wherein, the overhead flame signal receiving terminal that has of detection, fire detection protective cover has housing and light-passing board, the housing has the straight tube, both ends are all opened, one end opening part is provided with outside extension's connection terminal surface, it is perpendicular with the straight tube axis to connect the terminal surface, be provided with a plurality of connect the via hole on the connection terminal surface, the side of straight tube is provided with the side through-hole, be provided with straight keyway on the straight tube inner wall, fire detection detector and fire detection protective cover pass through the key-type connection, the light-passing board sets up on the side through-hole, fire detection protective cover passes through bolted connection with the flange that sets up on the combustor, thereby fix the fire detection detector.
The utility model provides an among the device is examined to anti condensation fire, can also have such characteristic: wherein, the material of the housing adopts ABS resin to make.
In addition, in the utility model provides a prevent that condensation water fire detects device, can also have such characteristic: wherein, the light-transmitting plate is round and is made of quartz glass.
In addition, in the utility model provides a prevent that condensation water fire detects device, can also have such characteristic: wherein, the housing and the light-transmitting plate are fixed by G-988A glue.
In addition, in the utility model provides a prevent that condensation water fire detects device, can also have such characteristic: wherein, the detection head of the fire detector is provided with a positioning key slot and a plurality of fastening rings, and the fastening rings are respectively arranged on the detection head in parallel and are positioned at one end of the detection head close to the trunk.
In addition, in the utility model provides a prevent that condensation water fire detects device, can also have such characteristic: wherein the straight key groove extends from the connecting end surface towards the inside of the straight tube.
In addition, in the utility model provides a prevent that condensation water fire detects device, can also have such characteristic: wherein, be provided with sealed the pad between flange and the fire detection protection casing.
In addition, in the utility model provides a prevent that condensation water fire detects device, can also have such characteristic: wherein, the sealing gasket is made of nitrile rubber.
Action and effect of the utility model
According to the utility model relates to a prevent that condensate water fire detects device because the protection casing setting is examined on detecting the head to the fire, has isolated the inside fire of external comdenstion water contact fire detection protection casing and has examined detection head, has avoided high temperature radiant heat and condensate water to examine signal influence to the fire. Therefore, the utility model discloses a device is examined to fire of preventing condensing has not only solved the water smoke and has influenced the fire and examined the detection problem that the detection head examined the flame signal to the safe and reliable operation that the stability of equipment signal was examined with the fire to the fire has been ensured.
Drawings
FIG. 1 is a schematic cross-sectional view of a fire detection guard according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a fire detection protective housing according to an embodiment of the present invention;
FIG. 3 is a view from the direction A of FIG. 2;
FIG. 4 is a schematic side view of a fire detection device according to an embodiment of the present invention;
FIG. 5 is a view from the direction B of FIG. 4; and
fig. 6 is a schematic position diagram of the condensation-preventing water fire detection device in the embodiment of the present invention.
Detailed Description
In order to make the technical means, creation characteristics, achievement purpose and efficiency of the utility model easy to understand, the following embodiment combines the drawings to specifically explain the utility model discloses a device is examined to prevent condensing water fire.
Examples
A condensation-preventing fire detection device is arranged on a combustor R and used for detecting a flame signal of the combustor R.
As shown in figure 1, the condensation-proof fire detection device comprises a fire detection detector 1, a connecting bolt 2, a fire detection protective cover 3, a sealing gasket 4 and a flange 5.
As shown in fig. 2, the fire detection shield 3 includes a housing 31 and two light-transmitting plates 32.
The housing 31 is in a straight pipe shape, two ends of the housing 31 are both open, one end is open 313, the other end is provided with a connection end surface 312 extending outwards, the connection end surface 312 is perpendicular to the axis of the straight pipe, a plurality of through holes 3121 are arranged on the connection end surface 312, a through hole 314 is arranged on the side surface of the straight pipe, a straight key groove 311 is arranged on the inner wall 315 of the straight pipe, and the key groove 311 extends towards the inside of the straight pipe from the connection end surface 312.
Preferably, the through hole 3121 is of a sunken-in-mesa type, and has the functions of positioning, fastening and beauty (preventing the bolt from protruding out of the connecting end surface too much).
In the embodiment, the housing 31 is made of ABS resin, so that the housing has the characteristics of good impact resistance, heat resistance, low temperature resistance, chemical corrosion resistance, excellent electrical properties, and the like, and can effectively reduce the influence of high-temperature radiant heat on the fire detection equipment.
The light-transmitting plate 32 is circular and is disposed at the opening 313 and the through hole 314 of the housing 31.
In the embodiment, the transparent plate 32 is made of quartz glass, has high light transmittance (more than 92%), can transmit far ultraviolet spectrum, visible light and near infrared spectrum, ensures a strong fire detection signal, has the advantages of high temperature resistance, extremely low thermal expansion coefficient, good chemical thermal stability and the like, and ensures a stable signal source in the operation process of the fire detection equipment.
The shell 31 and the light-transmitting plate 32 are fixed by adopting G-988A glue, so that the flame detector has excellent bonding, waterproof and shockproof properties, good sealing property and the like, the effective separation of the flame detector 1 and the outside is ensured, the influence and damage of condensed water on the flame detector 1 are avoided, and the safe and reliable operation of the flame detector 1 is ensured.
As shown in fig. 4 and 5, the fire detector 1 has a protruding cylindrical detection head 11, a positioning key 12 and a trunk 13, the fire detector 1 is divided into two forms of single radial detection and axial and radial bidirectional detection, and is used for detecting a flame signal of a burner R, and the type is a german BST fire detector axial and radial dual-purpose type: KLC1000-01 RAS; individual radial detection type model: KLC1000-01 RS. In the embodiment, the fire detector 1 adopts a shaft and diameter bidirectional detection type of KLC1000-01 RAS.
The detection head 11 is provided with a radial flame signal receiving end 111, a positioning key groove 112 and a plurality of fastening rings 113.
The receiving end 111 is disposed on the detecting head 11, and the positioning key slot 112 is disposed on the detecting head 11, and is located at one end of the detecting head 11 close to the trunk 13 and on the same side as the receiving end 111.
A plurality of fastening rings 113 are respectively disposed in parallel on detection head 11 at an end of detection head 11 near torso 13. In the embodiment, the number of the fastening rings 113 is three, and the fastening rings are made of a flexible material.
The positioning key 12 is disposed in the positioning key groove 112, and the key groove 311 and the positioning key groove 112 are disposed corresponding to the positioning key 12.
The mounting end of the fire detector 1 has a locating key 12 and a circumferential fastening ring 113 which co-operate with a keyway 311 on the casing 31 and an inner wall 315 of the tube.
The straight pipe inner wall 315 of the housing 31 is matched with the detection head 11 of the fire detector 1, and the housing 31 is sleeved on the detection head 11 of the fire detector 1, so that the contact between the detection head 11 and the condensed water is isolated, and the detection of the fire detector 1 is not influenced.
As shown in fig. 6, the flange 5 is used for mounting the fire detection shield 3. On flange 5 welded combustor R's the barrel, flange 5 is located the outside of combustor R barrel, is provided with a plurality of screw holes corresponding to fire detection protection casing 3's through-hole 3121 on the flange 5.
The fire detection flange 5 and the outer wall of the combustor can be fixed in two modes of welding or assembling according to actual conditions.
The fire detection protective cover 3 is assembled with the flange 5 through the bolt 2, a key slot 311 in the fire detection protective cover 3 is installed corresponding to the flame signal source side, a detection head 11 of the fire detection detector 1 is positioned in a burner R cylinder, and a trunk 13 is positioned outside the burner R cylinder.
Be provided with sealed 4 between flange 5 and the fire detection protection casing 3 at the fire, in the embodiment, sealed 4 adoption nitrile rubber sealing gasket of filling up seals up, has not only ensured safe and reliable, has still guaranteed pleasing to the eye.
Because the housing 31 is provided with the key slot 311, during assembly, the positioning key 12 of the fire detector 1 is inserted into the key slot 311 to the bottom, so that the fire detector 1 is fixed on the cylinder of the burner R, the installation reliability is ensured, and meanwhile, the radial flame signal receiving end 111 is correspondingly installed with a flame signal source.
Preferably, the surface of the inner wall 315 of the straight tube is provided with a groove corresponding to the fastening ring 113, and when assembled, the fastening ring 113 of the fire detector 1 is sensed to be in place in the groove, i.e., the assembly is complete.
Effects and effects of the embodiments
According to the device is examined to prevent condensate water fire of this embodiment, because the fire is examined the protection casing setting and is detecting overhead, has completely cut off the inside fire of external comdenstion water contact fire detection protection casing and has examined the detection head, has avoided high temperature radiant heat and condensate water to examine signal influence to the fire. Therefore, the utility model discloses a device is examined to fire of preventing condensing has not only solved the water smoke and has influenced the fire and examined the detection problem that the detection head examined the flame signal to the safe and reliable operation that the stability of equipment signal was examined with the fire to the fire has been ensured.
In addition, the fire detection protective cover is made of ABS resin which is one of five synthetic resins, so that the fire detection protective cover has the characteristics of good impact resistance, heat resistance, low temperature resistance, chemical corrosion resistance, excellent electrical performance and the like, and the influence of high-temperature radiant heat on fire detection equipment is effectively reduced.
Furthermore, the light-transmitting plate of the fire detection protection device is made of quartz glass, contains a large amount of hydroxyl groups, has excellent ultraviolet-transmitting performance, has the average transmittance of more than 98 percent, does not change color when radiated, ensures a strong fire detection signal, has the advantages of high temperature resistance, extremely low thermal expansion coefficient, good chemical heat stability and the like, and ensures stable signal capture in the operation process of fire detection equipment.
Furthermore, high and low temperature resistant G-988A glue is adopted between the peeping holes in the light-transmitting plate and the fire detection protective cover, so that the light-transmitting plate has excellent bonding, waterproof and shockproof properties, the good sealing property and the like ensure the effective separation of the fire detection equipment and the outside, the influence and damage of condensed water on the fire detection equipment are avoided, and the safe and reliable operation of the fire detection equipment is ensured.
Furthermore, adopt spacing draw-in groove installation, it is simple convenient and fixed good to detect between head and the fire detection protection casing.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (8)
1. The utility model provides a prevent that condensation water fire examines device sets up on the combustor which characterized in that includes:
the fire detection detector is provided with a protruding detection head and is used for detecting a flame signal of the combustor; and
a fire detection protective cover arranged on the detection head and used for isolating the detection head from contacting with the condensed water,
wherein the detection head is provided with a flame signal receiving end,
the fire detection protective cover is provided with a cover shell and a light-transmitting plate,
the housing is provided with a straight pipe, two ends of the straight pipe are both opened, a connecting end surface extending outwards is arranged at the opening at one end of the straight pipe, the connecting end surface is vertical to the axis of the straight pipe,
the connection end face is provided with a plurality of connection through holes, the side face of the straight pipe is provided with side through holes, the inner wall of the straight pipe is provided with a straight key groove, the fire detection detector is connected with the fire detection protective cover through a key,
the light-transmitting plate is arranged on the side through hole,
the fire detection protective cover is connected with a flange arranged on the combustor through a bolt, so that the fire detection detector is fixed on the combustor, and the flame signal receiving end on the fire detection detector is correspondingly installed on the side of the flame signal source.
2. The water condensation fire detection apparatus according to claim 1, wherein:
the housing is made of ABS resin.
3. The water condensation fire detection apparatus according to claim 1, wherein:
the light-transmitting plate is circular and is made of quartz glass.
4. The water condensation fire detection apparatus according to claim 1, wherein:
the housing and the light-transmitting plate are fixed by adopting G-988A glue.
5. The water condensation fire detection apparatus according to claim 1, wherein:
wherein, the detection head of the fire detector is provided with a positioning key slot and a plurality of fastening rings,
a plurality of tighrening rings are respectively arranged on the detection head in parallel, and are positioned at one end of the detection head close to the trunk.
6. The water condensation fire detection apparatus according to claim 1, wherein:
wherein the straight key groove extends from the connecting end surface towards the inside of the straight tube.
7. The water condensation fire detection apparatus according to claim 1, wherein:
and a sealing gasket is arranged between the flange and the fire detection protective cover.
8. The water condensation fire detection apparatus according to claim 7, wherein:
wherein, the sealing gasket is made of nitrile rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020834175.3U CN212584941U (en) | 2020-05-19 | 2020-05-19 | Device is examined to fire of preventing congealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020834175.3U CN212584941U (en) | 2020-05-19 | 2020-05-19 | Device is examined to fire of preventing congealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212584941U true CN212584941U (en) | 2021-02-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020834175.3U Active CN212584941U (en) | 2020-05-19 | 2020-05-19 | Device is examined to fire of preventing congealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212584941U (en) |
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2020
- 2020-05-19 CN CN202020834175.3U patent/CN212584941U/en active Active
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