CN203719773U - Trabeated firing detection device for monitoring hot spots of air preheater - Google Patents
Trabeated firing detection device for monitoring hot spots of air preheater Download PDFInfo
- Publication number
- CN203719773U CN203719773U CN201320574348.2U CN201320574348U CN203719773U CN 203719773 U CN203719773 U CN 203719773U CN 201320574348 U CN201320574348 U CN 201320574348U CN 203719773 U CN203719773 U CN 203719773U
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- China
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- assembly
- bracket
- fire
- infrared probe
- sniffer
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- Expired - Lifetime
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Abstract
The utility model discloses a trabeated firing detection device for monitoring hot spots of an air preheater. The trabeated firing detection device comprises at least one set of infrared ray probe assembly, a bracket, a conjunction box assembly and a master control cabinet. The infrared ray probe assemblies are installed on the bracket. One end of the bracket is installed on a rotor center cylinder of the preheater, the other end of the bracket is installed on the cold end surface of a housing of the air preheater, and the cold end surface is close to a rotor. The infrared ray probe assemblies are connected to the master control cabinet through the conjunction box assembly. The trabeated firing detection device utilizes an infrared ray signal to detect surface temperature of a heating element, and sends an alarm before the igniting temperature is detected. Thus, the fire hazard is eliminated in a sprout period.
Description
Technical field
The utility model relates to a kind of sniffer on fire, relates in particular to a kind of sniffer being installed on air preheater.
Background technology
Air preheater is the important support equipment of Generator Set boiler, inner at air preheater, be deposited on the imperfect combustion accumulation in heated element surface, run into the oxygen of air in place abundance, easily produce focus, if this focus slowly spreads, just can cause heated element catching fire, form fire, will cause serious, irremediable loss.
Yet most of air preheaters is on fire, be first to occur at regional area, be to cause owing to being deposited on imperfect combustion fuel fire in the inner heated element of primary heater.If when the focus burning makes heated element temperature rising uniform temperature, these focuses can cause components made of steel on fire.
Utility model content
The purpose of this utility model is to solve in prior art focus in unpredictable primary heater and easily cause the problem that primary heater inner member is on fire, provides a kind of and utilizes infrared signal to detect the surface temperature of heated element and prevent the sniffer that it is on fire.
The technical solution of the utility model is: the sniffer on fire of cross beam type monitoring air pre-heater hot spot, comprise at least one group of infrared probe assembly, bracket, junction box assembly and master control cabinet, described infrared probe assembly is arranged on described bracket, described bracket one end is arranged on primary heater rotor center cylinder, and the other end is arranged on air preheater shell near rotor cold end surface; Described infrared probe assembly is connected with described master control cabinet by junction box assembly.
Described infrared probe assembly comprises several infrared probes, probe assembly upper cover plate, probe cooling jacket and probe assembly housing, described infrared probe is arranged on probe assembly upper cover plate with different angles by probe cooling jacket, and described probe assembly housing is arranged on the side of described bracket by described probe assembly upper cover plate.
Described infrared probe is three and same row's spaced set, and wherein the infrared probe of both sides and middle infrared probe are angled.
Also comprise air pipe assembly and cooling water channel assembly, described infrared probe is arranged on to the probe cooling jacket joining with air pipe assembly inner, described cooling water channel assembly is connected with the cooled plate of described infrared probe assembly both sides.
The flexible pipe of described air pipe assembly together with being a plurality of splicings with cooling water channel assembly.
Also comprise flip cover assembly, the transmission shaft that described flip cover assembly comprises drive motor, join with drive motor, be arranged on the limit switch of renovating and control drive motor on described transmission shaft, described transmission shaft is arranged on the below of infrared probe assembly, and described drive motor is arranged on bracket one end.
Described transmission shaft is arranged on the bottom of bracket by universal joint and hold-down support.
Described renovating by L-type bearing is sleeved on described transmission shaft.
Described bracket is arranged on air preheater by outer support plate.
Described infrared probe assembly is six groups, and interval is equidistant is arranged on the surface on described bracket lateral attitude.
Sniffer of the present utility model, when normal work, by motor, drive transmission shaft to drive flip cover assembly slow circumvolve, make it not interfere the exposure pathways of infrared probe, infrared probe penetrates a slice infrared detection region by different angles, infrared probe assembly is connected, be irradiated to whole rotor cold junction radius, make rotor when rotating whole rotor all in infrared detection region.Heated element is detected by infrared probe, and signal is sent to controller to be processed, and automatically in the temperature that touches the inner heated element of screen display primary heater, according to controller, the result of infrared signal is produced to corresponding normal or alerting signal.The utility model utilizes infrared signal to detect the surface temperature of heated element, sends warning before reaching ignition temperature, and fire alarm is eliminated among rudiment.
Accompanying drawing explanation
Fig. 1 is front elevation of the present utility model;
Fig. 2 is side view of the present utility model;
Fig. 2 a is the A portion enlarged drawing of Fig. 1;
Fig. 3 is the front view of the utility model middle infrared (Mid-IR) probe assembly;
Fig. 3 a is the side view of the utility model middle infrared (Mid-IR) probe assembly;
Fig. 4 is the structural representation of air pipe assembly in the utility model;
Fig. 5 is the structural representation of cooling water channel assembly in the utility model;
Fig. 6 is the structural representation of renovating in the utility model.
Embodiment
For technological means, technical characterictic, utility model object and the technique effect that the utility model is realized is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As depicted in figs. 1 and 2, sniffer on fire for a kind of cross beam type monitoring air pre-heater hot spot of the present utility model, comprise at least one group of infrared probe assembly 100, bracket 200, junction box assembly and master control cabinet (not going out in figure), the utility model be take six groups of infrared probe assemblies 100 as example describes, and certainly plays number and can adjust according to the size of air preheater.
Infrared probe assembly 100 is arranged on bracket 200, and described bracket 200 one end are arranged on primary heater rotor center cylinder by back up pad 201, and the other end is arranged on air preheater shell near rotor cold end surface 203 by fixing channel-section steel 202; Infrared probe assembly 100 is connected with master control cabinet by junction box assembly, and by primary controller, controls the running status of infrared probe assembly 100.
With reference to figure 2a, infrared probe assembly 100 of the present utility model comprises three infrared probes 101, probe assembly upper cover plate 102, probe cooling jacket 103 and probe assembly housing 104, infrared probe 101 is arranged on probe assembly upper cover plate 102 with different angles by probe cooling jacket 103, probe cooling jacket 103 is completely coated by infrared probe 101, only exposes the front end of probe.Probe assembly housing 104 is by the described probe assembly upper cover plate 102 equidistant side that is arranged on bracket 200, interval side by side.Infrared probe 101 in the utility model is three and spaced set side by side, join with the cable plug 1012 of probe assembly housing 104 outsides, wherein the infrared probe of both sides and middle infrared probe are angled, with middle infrared probe, both sides outwards depart from certain angle, like this to can obtain wider search coverage 1011.
As shown in Fig. 3, Fig. 3 a and Fig. 4, the utility model also comprises air pipe assembly 300 and cooling water channel assembly 400, described infrared probe 101 is arranged on to probe cooling jacket 103 inside, probe cooling jacket 103 and the ash cover that blows being arranged in probe cooling jacket 103 join with the tracheae plug 301 that is arranged on probe assembly housing 104 surfaces, and air pipe assembly 300 joins with described tracheae plug 301.Described cooling water channel assembly 400 comprises inlet pipeline and outlet pipeline, joins with probe cooling jacket 103.And join with the cooled plate of infrared probe assembly both sides.The flexible pipe of air pipe assembly 300 of the present utility model together with being a plurality of splicings with cooling water channel assembly 400.
As shown in Figure 5; for the lens surface that guarantees to pop one's head in clean; spy has been equipped with by driving mechanism and has driven transmission shaft rotary flip to rotate slowly; when camera lens need to clean; flip cover assembly rotates to and covers infrared probe component states; carry out len, in the time of need to working, then rotary flip device carries out infrared detection.The utility model is by realizing the effect of renovating protection with lower device.By being arranged on the flip cover assembly of outside line probe assembly 100 belows, the transmission shaft 502 that comprises drive motor 501, joins with drive motor 501, be arranged on and renovate 503 and the limit switch 5011 of controlling drive motor 501 on described transmission shaft 502, described transmission shaft 502 is arranged on the below of infrared probe assembly 100, and described drive motor 501 is arranged on one end of bracket 200.
Transmission shaft 502 of the present utility model is arranged on the bottom of bracket 200 by universal joint 504 and hold-down support 505, owing to using a plurality of infrared probe assemblies 100, thus while using, need to a plurality ofly renovate 503, as shown in Figure 6; So just a plurality of transmission shafts 502 need to be connected and lengthen, between each transmission shaft 502, by universal joint 504, guarantee the transmission of its rotating force.Renovating in the utility model 503 is sleeved on transmission shaft 502 by L-type bearing 506, be that renovating in the utility model 503 is sleeved on by L-type bearing the bottom that is positioned at bracket 200 on transmission shaft 502, rotation by transmission shaft 502 drives its rotation, and realization is renovated 503 and opened and hide outside line probe assembly 100.
Sniffer of the present utility model, when normal work, by motor, drive transmission shaft to drive flip cover assembly slow circumvolve, make it not interfere the exposure pathways of infrared probe, infrared probe penetrates a slice infrared detection region by different angles, infrared probe assembly is connected, be irradiated to whole rotor cold junction radius, make rotor when rotating whole rotor all in infrared detection region.Heated element is detected by infrared probe, and signal is sent to controller to be processed, and automatically in the temperature that touches the inner heated element of screen display primary heater, according to controller, the result of infrared signal is produced to corresponding normal or alerting signal.The utility model utilizes infrared signal to detect the surface temperature of heated element, sends warning before reaching ignition temperature, and fire alarm is eliminated among rudiment.
Be only the utility model preferred embodiment in sum, be not used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the application's the scope of the claims change and modify, all should belong to the utility model technology category.
Claims (10)
1. cross beam type is monitored the sniffer on fire of air pre-heater hot spot, it is characterized in that: comprise at least one group of infrared probe assembly, bracket, junction box assembly and master control cabinet, described infrared probe assembly is arranged on described bracket, described bracket one end is arranged on primary heater rotor center cylinder, and the other end is arranged on air preheater shell near rotor cold end surface; Described infrared probe assembly is connected with described master control cabinet by junction box assembly.
2. cross beam type according to claim 1 is monitored the sniffer on fire of air pre-heater hot spot, it is characterized in that: described infrared probe assembly comprises several infrared probes, probe assembly upper cover plate, probe cooling jacket and probe assembly housing, described infrared probe is arranged on probe assembly upper cover plate with different angles by probe cooling jacket, and described probe assembly housing is arranged on the side of described bracket by described probe assembly upper cover plate.
3. the sniffer on fire of cross beam type monitoring air pre-heater hot spot according to claim 1, is characterized in that: described infrared probe is three and same row's spaced set, and wherein the infrared probe of both sides and middle infrared probe are angled.
4. cross beam type according to claim 2 is monitored the sniffer on fire of air pre-heater hot spot, it is characterized in that, also comprise air pipe assembly and cooling water channel assembly, described infrared probe is arranged on the ash that blows joining with air pipe assembly and overlaps inside, and described cooling water channel assembly and described infrared probe assembly both sides cooled plate are joined.
5. the sniffer on fire of cross beam type according to claim 4 monitoring air pre-heater hot spot, is characterized in that: the flexible pipe of described air pipe assembly together with being a plurality of splicings with cooling water channel assembly.
6. cross beam type according to claim 1 is monitored the sniffer on fire of air pre-heater hot spot, it is characterized in that: also comprise flip cover assembly, the transmission shaft that described flip cover assembly comprises drive motor, join with drive motor, be arranged on the limit switch of renovating and control drive motor on described transmission shaft, described transmission shaft is arranged on the below of infrared probe assembly, and described drive motor is arranged on bracket one end.
7. the sniffer on fire of cross beam type monitoring air pre-heater hot spot according to claim 6, is characterized in that: described transmission shaft is arranged on the bottom of bracket by universal joint and hold-down support.
8. the sniffer on fire of cross beam type according to claim 6 monitoring air pre-heater hot spot, is characterized in that: described in renovate by L-type bearing and be sleeved on described transmission shaft.
9. the sniffer on fire of cross beam type monitoring air pre-heater hot spot according to claim 1, is characterized in that: described bracket is arranged on air preheater by outer support plate.
10. according to the sniffer on fire of the cross beam type monitoring air pre-heater hot spot described in claim 1-9 any one, it is characterized in that: described infrared probe assembly is six groups, interval is equidistant is arranged on the surface on described bracket lateral attitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320574348.2U CN203719773U (en) | 2013-09-16 | 2013-09-16 | Trabeated firing detection device for monitoring hot spots of air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320574348.2U CN203719773U (en) | 2013-09-16 | 2013-09-16 | Trabeated firing detection device for monitoring hot spots of air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203719773U true CN203719773U (en) | 2014-07-16 |
Family
ID=51158912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320574348.2U Expired - Lifetime CN203719773U (en) | 2013-09-16 | 2013-09-16 | Trabeated firing detection device for monitoring hot spots of air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203719773U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471721A (en) * | 2013-09-16 | 2013-12-25 | 上海市东方海事工程技术有限公司 | Trabeated fire detecting device for monitoring air preheater hot spots |
-
2013
- 2013-09-16 CN CN201320574348.2U patent/CN203719773U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471721A (en) * | 2013-09-16 | 2013-12-25 | 上海市东方海事工程技术有限公司 | Trabeated fire detecting device for monitoring air preheater hot spots |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |