CN203365010U - Temperature measuring device provided with leakage alarm of thermocouple of boiler - Google Patents
Temperature measuring device provided with leakage alarm of thermocouple of boiler Download PDFInfo
- Publication number
- CN203365010U CN203365010U CN 201320457289 CN201320457289U CN203365010U CN 203365010 U CN203365010 U CN 203365010U CN 201320457289 CN201320457289 CN 201320457289 CN 201320457289 U CN201320457289 U CN 201320457289U CN 203365010 U CN203365010 U CN 203365010U
- Authority
- CN
- China
- Prior art keywords
- boiler
- protection tube
- thermocouple
- temperature measuring
- leakage alarm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a temperature measuring device provided with leakage alarm of a thermocouple of a boiler. The temperature measuring device comprises a protection tube penetrating through an inner wall, a heat-insulation layer and an outer wall of the boiler, and a thermocouple consisting of a junction box, a bushing and a thermocouple wire; the thermocouple is connected with the protection tube via a flange; one end of the protection tube, positioned in the inner cavity of the boiler, is provided with a plug; a cold terminal of the thermocouple wire is connected with a terminal row in the junction box; a hot terminal of the thermocouple wire is inserted into the bushing and penetrates through the bushing; and a terminal part of the hot terminal is exposed. A wall of one end of the protection tube, positioned outside the boiler, is provided with an opening, and the opening position is connected with a pressure transmitter. When the boiler is heated, gas in the protection tube is heated and expands, the positive pressure in the protection tube can be detected via the pressure transmitter; when the protection tube is damaged, the inner cavity of the protection tube is communicated with the inner cavity of the boiler, the pressure in the boiler is negative, and the pressure transmitter can detect pressure changes in the protection tube in time so that the condition of the protection tube can be confirmed and the security of thermocouple operation is improved.
Description
Technical field
The utility model relates to the Industrial Boiler applied technical field, is specifically related to a kind of standoff boiler thermocouple temperature measuring apparatus of establishing.
Background technology
Industrial Boiler adopts thermopair to detect the temperature of each system, makes operating personnel can accurately grasp the ruuning situation of boiler, in order to adjust in time the operational factor of boiler, guarantees the safe operation of boiler.The thermopair of existing boiler thermocouple temperature measuring apparatus inserts in protection tube; by flange, be fixedly connected with; protection tube directly contacts the flame in boiler; if being burned, do not process in time protection tube; protection tube loses protective effect; thermopair is easy to be burned, charing, does not have at present the boiler thermocouple detection device to be provided with the leakage alarm of protection tube.
Summary of the invention
Whether the technical problems to be solved in the utility model is to provide a kind of boiler thermocouple temperature measuring apparatus that is provided with leakage alarm, can solve prior art and can't detect protection tube and leak, once cause protection tube to damage, thermopair also is easy to the problem of damaging.
The utility model is achieved through the following technical solutions:
A kind of boiler thermocouple temperature measuring apparatus that is provided with leakage alarm, comprise the protection tube of the inwall that runs through boiler, heat-insulation layer, outer wall, and the thermopair be comprised of terminal box, sleeve pipe, thermocouple wire, and described thermopair is connected in protection tube by flange; The end that described protection tube is positioned at boiler intracavity is provided with plug; The cold junction of described thermocouple wire is connected in the terminal row in terminal box, and sleeve pipe is inserted in the hot junction of described thermocouple wire, then passes sleeve pipe and expose its end, and the wall that described protection tube is positioned at the outer end of boiler is provided with opening, and described opening part is connected with pressure unit.
The further improvement of the utility model scheme is, the measurement lower limit of described pressure unit is negative value, its on measuring, be limited on the occasion of.
The further improvement of the utility model scheme is that described pressure unit is flange diaphragm type pressure unit.
The further improvement of the utility model scheme is that described plug is made by repairing the stove dedicated pouring material.
The utility model advantage compared with prior art is:
At the thermopair protection tube of packing into; the protection tube inner chamber is in air-tight state, and when boiler heating, in protection tube, when gases are heated, they expand; pressure raises; the malleation in protection tube can be detected by pressure unit, when protection tube is damaged, the protection tube inner chamber is communicated with boiler intracavity; in boiler, it is negative pressure; the pressure that pressure unit can detect in the pipe that is protected in time changes, thereby confirms that whether protection tube is intact, has improved the security of thermopair operation.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
A kind of boiler thermocouple temperature measuring apparatus that is provided with leakage alarm as shown in Figure 1, the protection tube 4 that comprises the inwall 6 that runs through boiler, heat-insulation layer 7, outer wall 8, and the thermopair formed by terminal box 1, sleeve pipe 2, thermocouple wire 3, described thermopair is connected in protection tube 4 by flange 9; The end that described protection tube 4 is positioned at boiler intracavity is provided with plug 5; The cold junction of described thermocouple wire 3 is connected in the terminal row in terminal box 1, sleeve pipe 2 is inserted in the hot junction of described thermocouple wire 3, pass sleeve pipe 2 again and expose its end, the wall that described protection tube 4 is positioned at the outer end of boiler is provided with opening, and described opening part is connected with pressure unit 10; The measurement lower limit of described pressure unit 10 is negative value, its measure be limited on the occasion of; Described pressure unit 10 is flange diaphragm type pressure unit; Described plug 5 is made by repairing the stove dedicated pouring material.
Claims (4)
1. a boiler thermocouple temperature measuring apparatus that is provided with leakage alarm, the protection tube (4) that comprises the inwall (6) that runs through boiler, heat-insulation layer (7), outer wall (8), and the thermopair formed by terminal box (1), sleeve pipe (2), thermocouple wire (3), described thermopair is connected in protection tube (4) by flange (9); The end that described protection tube (4) is positioned at boiler intracavity is provided with plug (5); The cold junction of described thermocouple wire (3) is connected in the terminal row in terminal box (1); sleeve pipe (2) is inserted in the hot junction of described thermocouple wire (3); pass again sleeve pipe (2) and expose its end; it is characterized in that: the wall that described protection tube (4) is positioned at the outer end of boiler is provided with opening, and described opening part is connected with pressure unit (10).
2. a kind of boiler thermocouple temperature measuring apparatus that is provided with leakage alarm as claimed in claim 1, it is characterized in that: the measurement lower limit of described pressure unit (10) is negative value, its on measuring, be limited on the occasion of.
3. a kind of boiler thermocouple temperature measuring apparatus that is provided with leakage alarm as claimed in claim 1 or 2, it is characterized in that: described pressure unit (10) is flange diaphragm type pressure unit.
4. a kind of boiler thermocouple temperature measuring apparatus that is provided with leakage alarm as claimed in claim 1, it is characterized in that: described plug (5) is made by repairing the stove dedicated pouring material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320457289 CN203365010U (en) | 2013-07-30 | 2013-07-30 | Temperature measuring device provided with leakage alarm of thermocouple of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320457289 CN203365010U (en) | 2013-07-30 | 2013-07-30 | Temperature measuring device provided with leakage alarm of thermocouple of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203365010U true CN203365010U (en) | 2013-12-25 |
Family
ID=49812756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320457289 Expired - Fee Related CN203365010U (en) | 2013-07-30 | 2013-07-30 | Temperature measuring device provided with leakage alarm of thermocouple of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203365010U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062023A (en) * | 2014-07-21 | 2014-09-24 | 天津市中环温度仪表有限公司 | Multi-branch multi-point thermocouple with sealed cavity |
| CN104266167A (en) * | 2014-10-09 | 2015-01-07 | 中国神华能源股份有限公司 | Seal box for installing combustion chamber measuring device and installation structure and installation method thereof |
-
2013
- 2013-07-30 CN CN 201320457289 patent/CN203365010U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062023A (en) * | 2014-07-21 | 2014-09-24 | 天津市中环温度仪表有限公司 | Multi-branch multi-point thermocouple with sealed cavity |
| CN104266167A (en) * | 2014-10-09 | 2015-01-07 | 中国神华能源股份有限公司 | Seal box for installing combustion chamber measuring device and installation structure and installation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203798458U (en) | Thermocouple protection tube with system precision verification hole | |
| CN203365010U (en) | Temperature measuring device provided with leakage alarm of thermocouple of boiler | |
| CN204788858U (en) | Fuel filter seal tightness test device | |
| CN105806880A (en) | Dust cloud ignition temperature testing device and method for determining ignition temperatures of dust cloud | |
| CN203365011U (en) | Thermocouple temperature-measuring device equipped with support for boiler | |
| CN204807289U (en) | Leak detection device is suppressed at special cooler tube bank scene | |
| CN101909371A (en) | Strong-ampere energy-saving explosion-proof electric heater | |
| CN105258864A (en) | Method for detecting sealing of supercharger midbody | |
| CN103672904A (en) | Gas line of combustor | |
| CN205120263U (en) | Vacuum furnace thermal couple temperature device | |
| CN102160919B (en) | Method and device for testing performance of temperature sensitive extinguishing tube | |
| CN203115504U (en) | Leakage warning device of sleeve inner pipeline | |
| CN205403172U (en) | Prevent overheated sheath formula electric heater | |
| CN205120264U (en) | Dismountable thermocouple based on two temperature measurement cores | |
| CN203323544U (en) | Infrared temperature measurement and smoke interference resistant device for microwave bell kiln | |
| CN104122299B (en) | Fuel gas detector with self-suction device | |
| CN203590480U (en) | Explosion-proof heating device | |
| CN102853976B (en) | Online leakage detection method and device thereof for heat treatment furnace radiant tube | |
| CN203414191U (en) | Online plugging thermal resistor | |
| CN106644135A (en) | Thermocouple temperature-measuring device for vacuum furnace | |
| CN202948021U (en) | Guide seal sleeve | |
| CN202968585U (en) | Temperature measuring device for blast furnace hot air | |
| CN203241205U (en) | Plugging pipe end final internal pressure cycle and heat cycle testing system | |
| CN207351630U (en) | A kind of air-tightness detection device | |
| CN207394362U (en) | Deep cooling pressure vessel and its temperature-detecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20140730 |
|
| EXPY | Termination of patent right or utility model |