CN210166034U - High-temperature high-pressure closed intracavity infrared temperature measurement system - Google Patents
High-temperature high-pressure closed intracavity infrared temperature measurement system Download PDFInfo
- Publication number
- CN210166034U CN210166034U CN201920400278.6U CN201920400278U CN210166034U CN 210166034 U CN210166034 U CN 210166034U CN 201920400278 U CN201920400278 U CN 201920400278U CN 210166034 U CN210166034 U CN 210166034U
- Authority
- CN
- China
- Prior art keywords
- temperature measurement
- temperature
- pressure
- probe tube
- measurement probe
- 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.)
- Active
Links
Images
Landscapes
- Radiation Pyrometers (AREA)
Abstract
The utility model relates to an infrared temperature measurement system in airtight intracavity of high temperature high pressure belongs to temperature measurement technical field, solves the big, unstable problem of current measurement method error. This temperature measurement system includes: the device comprises an infrared thermometer, a pressure-bearing lens, a temperature measurement probe tube, a cooling system and a contact thermocouple; the pressure-bearing lens is arranged on the outer wall of one side of the closed container; the temperature measuring probe is arranged in the closed container and is connected with the pressure-bearing lens; one end of the temperature measurement probe tube extends into the high-temperature area to serve as the hot end of the temperature measurement probe tube, and the other end of the temperature measurement probe tube is fixed on the inner wall of the pressure-bearing lens to serve as the cold end of the temperature measurement probe tube; the cooling system is arranged on the outer wall of the closed container close to the cold end of the temperature measurement probe; the temperature measuring end of the contact thermocouple is arranged above or below the hot end of the temperature measuring probe. The utility model provides a temperature measurement system can be used to the temperature measurement in high temperature high pressure airtight chamber.
Description
Technical Field
The utility model relates to a temperature measurement technical field specifically is an infrared temperature measurement system in airtight intracavity of high temperature high pressure.
Background
The temperature measurement in the high-temperature high-pressure closed cavity is always difficult because the high temperature in the closed cavity cannot be directly measured, for example, in the process of producing certain powder by using pressure sintering equipment, the production process is that materials are heated to 2000 ℃ in a closed container, then inert gas is filled into the container to pressurize the materials, and after the pressure is increased to 9.0Mpa, a long-time heat preservation and pressure maintaining stage is carried out. The change of the material under this condition is a complex process, and a stable and uniform temperature field needs to be formed in the high-pressure cavity.
Common industrial temperature measurement technologies mainly include: contact type temperature measurement and non-contact type infrared temperature measurement.
Contact temperature measurement: the traditional temperature sensor is in direct contact with the tested equipment to measure the temperature. Because the mode is direct contact, each temperature measuring point needs to be provided with a temperature measuring device. General thermocouples, temperature sensors, and other direct temperature measuring devices cannot be used in a severe environment of high temperature and high pressure.
Temperature measurement by a non-contact infrared thermometer: and aligning the infrared thermometer to a measured temperature point within a specified distance, adjusting the focal length to enable the target to fill a heat sensing plane in the infrared thermometer, and then setting a proper heat radiance according to the material of the measured target to obtain the temperature of the target. The temperature measurement method is a commonly used temperature measurement method in the high-temperature and high-pressure environment at present. The existing defects of the prior art are as follows: volatile matters or dust in the closed container are attached to an observation window for infrared temperature measurement due to the change of pressure in the closed container and the disturbance of a pressure gas medium in a high-temperature environment, and the glass window for infrared temperature measurement is extremely easy to be polluted, so that temperature measurement errors or even temperature measurement cannot be carried out, and therefore the glass window must be cleaned in time. The common method is to perform real-time gas purging on the glass window to prevent dust, impurities and the like in the sealed cavity from being attached to the window to cause pollution. However, the technical difficulty exists in performing real-time gas purging on the glass window in a high-pressure gas environment with constantly changing pressure, firstly, the pressure and the flow of the purged gas need to be accurately controlled by a set of complex devices, the difficulty in implementation is high, the cost is high, and the effect is not ideal; secondly, the pressure in the closed container is increased due to the blowing gas, and the pressure in the closed container can be ensured to be stable only by continuously discharging the same amount of gas; and thirdly, the discharge of high-temperature gas can cause the temperature of the gas flowing through the pipeline to rise, so that the pipeline is damaged, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
In view of the above analysis, the utility model aims at providing a high temperature high pressure airtight intracavity infrared temperature measurement system for solve the big, unstable problem of current measurement method error.
The purpose of the utility model is mainly realized through the following technical scheme:
the utility model provides an infrared temperature measurement system in airtight intracavity of high temperature high pressure, this temperature measurement system includes: the device comprises an infrared thermometer, a pressure-bearing lens, a temperature measurement probe tube, a cooling system and a contact thermocouple; the pressure-bearing lens is arranged on the outer wall of one side of the closed container; the temperature measuring probe is arranged in the closed container and is connected with the pressure-bearing lens; one end of the temperature measurement probe tube extends into the high-temperature area to serve as the hot end of the temperature measurement probe tube, and the other end of the temperature measurement probe tube is fixed on the inner wall of the pressure-bearing lens to serve as the cold end of the temperature measurement probe tube; the cooling system is arranged on the outer wall of the closed container close to the cold end of the temperature measurement probe; the temperature measuring end of the contact thermocouple is arranged above or below the hot end of the temperature measuring probe.
In one possible design, the cooling system is an annular jacket structure including a water-cooled inner wall and a water-cooled outer wall.
In one possible design, a cooling water inlet is arranged on one side of the water-cooled outer wall close to the pressure-bearing lens, and a cooling water outlet is arranged on one side of the water-cooled outer wall far away from the pressure-bearing lens.
In one possible design, the temperature probe tube is hollow inside and the hot end of the temperature probe tube is closed.
In one possible design, the cold end of the temperature probe is provided with a vent.
In one possible design, the number of vent holes is 1 or more.
In one possible design, the temperature measurement system further comprises a holder, and the infrared thermometer is mounted on the holder.
In one possible design, the pressure-bearing lens is fixedly connected with the temperature measurement probe through a first flange; and a sealing ring is arranged between the pressure-bearing lens and the first flange.
In one possible design, the lens of the infrared thermometer is aligned with the temperature probe.
In one possible design, the temperature probe is made of tungsten.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model provides a cooling system is arranged around the pressure-bearing lens and the cold end of the temperature measurement probe tube of the high-temperature high-pressure closed intracavity infrared temperature measurement system; reduce the temperature of temperature measurement probe tube cold junction surrounding gas through cooling system, make the temperature measurement probe tube high temperature end and cold junction between form the temperature dip gradient, high temperature gas is depositing gradually to impurities such as cold junction flow in-process volatile matter and dust, thereby guarantee that the gas purity that is close to the temperature measurement probe tube cold junction air vent more high, make the pure nothing impurity of gas that enters into the temperature measurement probe tube, prevent that the impurity in the gas from attaching to on the observation window, the contaminated problem of observation window has effectively been solved, measured data is stable, high precision, can realize long-time continuous temperature measurement.
2. The utility model provides a pressure-bearing lens that airtight intracavity infrared temperature measurement system of high temperature high pressure adopted, pressure-bearing lens are first kind special quartz glass, and the light transmissivity is high, can bear the high pressure impact. The system is arranged on the outer wall of the closed container, is used as a part of the wall of the closed container, has a pressure bearing effect, and is also used as an observation window. The cooling system installed around the temperature measurement probe pipe not only cools the gas around the temperature measurement probe pipe, but also can ensure the lower temperature around the pressure-bearing lens, and avoid the high-temperature gas from impacting and damaging the pressure-bearing lens to cause safety accidents.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.
Fig. 1 is a schematic structural view of an infrared temperature measurement system in a high-temperature high-pressure closed cavity provided by the present invention;
in the figure: the system comprises an infrared thermometer 1, a pressure-bearing lens 2, a temperature-measuring probe 3, a cooling system 4, a closed container 5, a holder 6, a cooling water inlet 7, a cooling water outlet 8, a first flange 9 and a second flange 10.
Detailed Description
The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention.
Example one
The embodiment provides an infrared temperature measurement system in a high-temperature high-pressure closed cavity, which is shown in fig. 1 and comprises an infrared thermometer 1, a pressure-bearing lens 2, a temperature measurement probe 3 and a cooling system 4; the pressure-bearing lens 2 is arranged on the outer wall of the closed container 5; a temperature measuring probe 3 is arranged on the inner side of the pressure-bearing lens 2; one end of the temperature measurement probe tube 3 extends into the high-temperature region to serve as the hot end of the temperature measurement probe tube, and the other end of the temperature measurement probe tube 3 is fixed on the inner wall of the pressure-bearing lens 2 to serve as the cold end of the temperature measurement probe tube; and a cooling system 4 is arranged around the cold ends of the pressure-bearing lens 2 and the temperature measurement probe, the cooling system 4 is of an annular jacket structure, and has an inner layer and an outer layer, and cooling water enters the jacket from a cooling water inlet 7 and flows out from a cooling water outlet 8.
Specifically, the part of the pressure-bearing lens 2 connected with the temperature measurement probe tube 3 is used as an observation window, and the lens of the infrared thermometer 1 captures infrared light rays radiated from high temperature in the closed container through the observation window to measure temperature.
Compared with the prior art, the cooling system is arranged around the pressure-bearing lens and the cold end of the temperature measurement probe tube of the high-temperature high-pressure closed intracavity infrared temperature measurement system provided by the embodiment; reduce the temperature of gas and material around the temperature measurement probe cold junction through cooling system for high temperature gas is on the temperature measurement probe outer wall of downward deposit of impurity such as volatile substance and dust when flowing to the cold junction, thereby enters into the gas pureness in the temperature measurement probe, prevents that gas from being attached to on the observation window, has effectively solved the contaminated problem of observation window, and measured data is stable, the precision is high, can realize long-time continuous temperature measurement.
Specifically, the pressure-bearing lens 2 is fixedly connected with the temperature measurement probe tube 3 through a first flange 9, and a sealing ring is arranged between the pressure-bearing lens 2 and the first flange 9, so that the requirements on strength and sealing performance can be met; the temperature measurement probe tube 3 is fixedly connected with the closed container 5 through the second flange 10, and a sealing ring is arranged between the closed container 5 and the second flange 10, so that the requirements on strength and sealing performance can be met.
Specifically, the pressure-bearing lens is made of special quartz glass, has high light transmittance, can bear high-pressure impact and also has certain thermal strength; the pressure-bearing lens is arranged on the outer wall of the closed container, is used as a part of the wall of the closed container, has the pressure-bearing effect and is also used as an observation window.
Specifically, the temperature measuring probe tube 3 is hollow, and the hot end of the temperature measuring probe tube is closed, so that the temperature of the hot end of the temperature measuring probe tube is the same as that of the material in the closed container.
In order to ensure the balance of the internal pressure and the external pressure of the temperature measuring probe when the pressure in the closed container changes, the cold end of the temperature measuring probe is provided with a vent hole.
Particularly, the temperature measuring probe 3 is made of tungsten, so that the temperature measuring probe has good high temperature resistance, good sag resistance at high temperature and long service life.
When the temperature measuring device is used, the infrared thermometer 1 is arranged on the cloud deck 6, and in order to ensure the accuracy of temperature measurement, the lens of the infrared thermometer 1 is aligned with the temperature measuring probe 3.
Specifically, the temperature measurement system further comprises a contact thermocouple, the temperature measurement end of the contact thermocouple is arranged above or below the hot end of the temperature measurement probe tube 3, and the contact thermocouple is connected to the temperature control instrument through a compensation lead. During implementation, the temperature is lower in the initial temperature rise stage, the temperature of the hot end of the temperature measurement probe tube is lower, the infrared ray is weaker, and the temperature can be measured by using a contact thermocouple.
Specifically, the infrared thermometer 1 is a two-color integrated infrared thermometer.
Specifically, the temperature measurement system further comprises a monitoring system and a circuit board, wherein the signal output end of the infrared thermometer 1 is connected with the input end of the circuit board, the signal output end of the circuit board is connected with the input end of the monitoring system, and the monitoring system converts the input signal into a specific number for displaying; during implementation, the temperature of the hot end of the temperature measurement probe tube is the same as that of the materials in the closed container, infrared light is continuously released from the hot end of the temperature measurement probe tube, the infrared light radiated out by high temperature in the closed container is captured by the lens of the infrared thermometer 1 through the observation window, the infrared thermometer 1 converts infrared light signals into electric signals which can be identified by the monitoring system, and the monitoring system converts the input signals into specific temperature data to be displayed.
The utility model provides a cooling system is arranged around the pressure-bearing lens and the cold end of the temperature measurement probe tube of the high-temperature high-pressure closed intracavity infrared temperature measurement system; the temperature of gas around the cold end of the temperature measurement probe tube is reduced through the cooling system, so that a temperature shock gradient is formed between the high-temperature end and the cold end of the temperature measurement probe tube, and impurities such as volatile matters, dust and the like are gradually deposited in the process that the high-temperature gas flows towards the cold end, so that the purity of the gas closer to a vent hole at the cold end of the temperature measurement probe tube is higher, the gas entering the temperature measurement probe tube is pure and free of impurities, the impurities in the gas are prevented from being attached to an observation window, the problem that the observation window is polluted is effectively solved, the measurement data are stable, the precision is high, and long-; the pressure-bearing lens is made of special quartz glass, has high light transmittance and can bear high-pressure impact, and the pressure-bearing lens is arranged on the outer wall of the closed container and is used as a part of the wall of the closed container, so that the pressure-bearing lens has a pressure-bearing effect and is also used as an observation window; the cooling system installed around the temperature measurement probe pipe not only cools the gas around the temperature measurement probe pipe, but also can ensure the lower temperature around the pressure-bearing lens, and avoid the high-temperature gas from impacting and damaging the pressure-bearing lens to cause safety accidents.
Example two
The embodiment provides an infrared temperature measurement method in a high-temperature high-pressure closed cavity, and by adopting the temperature measurement system provided by the first embodiment, the temperature measurement method comprises the following steps:
adopt the utility model discloses an infrared temperature measurement method carries out high temperature calcination pressurization to phosphor powder in pressure sintering equipment, and calcination temperature 2000 ℃, calcination time 10 hours, highest pressure 9.5 Mpa.
Step 1: firstly, cleaning a crucible and a material support used for calcination, and putting a fluorescent powder raw material into the crucible. And then placed in a closed vessel (in this embodiment, a pressure sintering furnace).
Step 2: and closing the furnace door of the pressure sintering furnace and starting a cooling system of the temperature measuring system. And vacuumizing the furnace chamber until the vacuum degree in the furnace chamber is lower than 1pa, and starting the heater to heat. In the early stage of temperature rise, because the temperature is lower, the temperature is measured by adopting a contact thermocouple.
And step 3: and (5) after the temperature in the furnace rises to 1200 ℃, entering heat preservation for 1 hour. And opening an argon valve, and filling argon into the furnace to 1.0 Mpa. After the temperature reaches 1200 ℃, the infrared temperature measurement system starts to be used, the difference value and stability comparison is carried out on the contact thermocouple temperature measurement data and the infrared temperature measurement data by adopting an algorithm, and the infrared temperature measurement value is compensated before the infrared temperature measurement is converted into the main control temperature in the next step.
And 4, step 4: continuously heating to 1750 ℃, and then entering a 1-hour heat preservation stage; opening the argon valve again, and filling argon into the furnace to 5.0 Mpa; and after the temperature reaches 1750 ℃, the contact thermocouple exits from the temperature measurement area, and an infrared temperature measurement system is adopted for measuring the temperature.
And 5: continuously heating to 1900 ℃ and keeping the temperature for 10 hours, and measuring the temperature by adopting an infrared temperature measuring system at the stage; and opening the argon valve again, and filling argon into the furnace to 9.5 Mpa.
Step 6: and (5) after the heat preservation is finished, disconnecting the heater and entering a cooling stage. And opening the valve to discharge argon when the temperature is reduced to be below 100 ℃, opening the furnace door, and taking out the fluorescent powder.
Specifically, when the infrared temperature measurement system is used for measuring temperature, the temperature of the hot end of the temperature measurement probe tube is the same as that of the material in the closed container, infrared light is continuously released from the hot end of the temperature measurement probe tube, the infrared light emitted by high temperature in the closed container is captured by the lens of the infrared thermometer 1 through the observation window, the infrared thermometer 1 converts infrared light signals into electric signals which can be recognized by the monitoring system, and the monitoring system converts the input signals into specific temperature data for displaying.
Because the furnace chamber has larger volume and the requirement of the production process, the temperature rise in the production process is carried out in stages so as to ensure the uniformity of the temperature of each part in the sintering furnace; meanwhile, inert gas is required to be filled into the furnace step by step, so that an inert pressure gas environment is provided for the reaction of the materials. However, because the temperature of the charging gas is at the room temperature level, the temperature of the gas in the furnace is at the 1000-2000 ℃ level, the temperature difference between the internal gas and the external gas is large, and the requirements of the production process on the charging gas rate, strong convection and disturbance phenomena can occur in the furnace during the charging of the gas. The impurities such as materials and volatile matter powder in the furnace are easily attached to the observation window by the strong convection and disturbance, so that the observation window is polluted, and the infrared temperature measurement is influenced. But through using the utility model provides a device observation discovers that the pollution of observation window obviously reduces.
After the production is carried out for 1 month according to the technical process, the mirror surface of the observation window at the inner side of the furnace body is observed, the mirror surface is clean and clean, and almost no dust and steam residue exists; and the temperature data that use this infrared temperature measuring device to gather in the contrast production process at every turn shows, and temperature data is stable no jump, and temperature curve coincidence degree is high, and the phosphor powder product property of sintering out is good, and the physics and chemistry test data is qualified. This shows that the temperature control in the furnace cavity by using the infrared temperature measurement mode can ensure the uniformity of the temperature of different heating areas in the hearth.
Comparative example 1
Adopt traditional non-contact infrared thermometer to carry out the temperature measurement to high temperature high pressure closed container, use 1 back, found that serious dust has appeared and has piled up on the glass window, lead to the temperature measurement inaccurate.
To sum up, the embodiment of the utility model provides a high-temperature high-pressure airtight intracavity infrared temperature measurement system, the pressure-bearing lens and the cold junction of the temperature measurement probe of the temperature measurement system of the utility model are provided with water cooling devices around; the temperature of gas and materials around the cold end of the temperature measurement probe tube is reduced through the water cooling device, so that impurities such as volatile matters, dust and the like are deposited on the outer wall of the temperature measurement probe tube when high-temperature gas flows to the cold end, the gas entering the temperature measurement probe tube is pure, the gas is prevented from being attached to the observation window, the problem that the observation window is polluted is effectively solved, the measurement data are stable, the precision is high, and long-time continuous temperature measurement can be realized; and the utility model provides a pressure-bearing lens that temperature measurement system adopted installs on airtight container's outer wall, as the partly of airtight container wall, both played the pressure-bearing effect, is used for doing the observation window again, this system simple structure, simple to operate, low cost.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (10)
1. The utility model provides an infrared temperature measurement system in high temperature high pressure closed chamber which characterized in that, temperature measurement system includes: the device comprises an infrared thermometer (1), a pressure-bearing lens (2), a temperature measurement probe tube (3), a cooling system (4) and a contact thermocouple; the pressure-bearing lens (2) is arranged on the outer wall of one side of the closed container (5); the temperature measurement probe tube (3) is arranged in the closed container (5) and is connected with the pressure-bearing lens (2); one end of the temperature measurement probe tube (3) extends into the high-temperature region to serve as the hot end of the temperature measurement probe tube, and the other end of the temperature measurement probe tube (3) is fixed on the inner wall of the pressure-bearing lens (2) to serve as the cold end of the temperature measurement probe tube; the cooling system (4) is arranged on the outer wall of the closed container (5) close to the cold end of the temperature measurement probe tube (3); the temperature measuring end of the contact thermocouple is arranged above or below the hot end of the temperature measuring probe tube (3).
2. Temperature measuring system according to claim 1, characterized in that the cooling system (4) is an annular jacket structure comprising a water-cooled inner wall and a water-cooled outer wall.
3. The temperature measurement system according to claim 2, wherein a cooling water inlet (7) is arranged on one side of the water-cooled outer wall close to the pressure-bearing lens (2), and a cooling water outlet (8) is arranged on one side of the water-cooled outer wall far away from the pressure-bearing lens (2).
4. The thermometric system according to claim 1, wherein the thermometric probe tube (3) is hollow inside and the hot end of the thermometric probe tube (3) is closed.
5. The thermometric system according to claim 4, wherein the cold end of the thermometric probe (3) is provided with a vent.
6. The thermometric system of claim 5, wherein the number of vent holes is 1 or more.
7. The thermometry system according to claim 6, further comprising a pan-tilt (6), said infrared thermometer (1) being mounted on the pan-tilt (6).
8. The temperature measurement system according to claim 1, wherein the pressure-bearing lens (2) is fixedly connected with the temperature measurement probe tube (3) through a first flange (9); a sealing ring is arranged between the pressure-bearing lens (2) and the first flange (9).
9. The thermometric system according to any of claims 1-8, wherein the lens of the infrared thermometer (1) is arranged in alignment with the thermometric probe (3).
10. The thermometric system according to claim 9, wherein the thermometric probe tube (3) is made of tungsten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920400278.6U CN210166034U (en) | 2019-03-27 | 2019-03-27 | High-temperature high-pressure closed intracavity infrared temperature measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920400278.6U CN210166034U (en) | 2019-03-27 | 2019-03-27 | High-temperature high-pressure closed intracavity infrared temperature measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210166034U true CN210166034U (en) | 2020-03-20 |
Family
ID=69789879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920400278.6U Active CN210166034U (en) | 2019-03-27 | 2019-03-27 | High-temperature high-pressure closed intracavity infrared temperature measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210166034U (en) |
-
2019
- 2019-03-27 CN CN201920400278.6U patent/CN210166034U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109990906B (en) | High-temperature high-pressure closed cavity infrared temperature measurement system and method | |
| WO2019109381A1 (en) | Rapid heating wide range thermogravimetric analyzer | |
| CN111189552B (en) | Methane hydrate flame temperature testing device and temperature measurement correction method | |
| CN109001254A (en) | A kind of device and method of quick test metallurgical cinder Thermal Conductivity at High Temperature | |
| CN1936524A (en) | Pouring-basket plug-rod with continuous temperature measuring function | |
| CN110411599A (en) | Reusable contact liquid internal temperature measuring device and measurement method | |
| CN105758208A (en) | High-temperature heat treatment non-contact temperature uniformity detection system and method | |
| KR20050035275A (en) | Optical path improvement, focus length change compensation, and stray light reduction for temperature measurement system of rtp tool | |
| CN210166034U (en) | High-temperature high-pressure closed intracavity infrared temperature measurement system | |
| EP1380674A2 (en) | Apparatus and process for producing crystal article, and thermocouple used therein | |
| CN106338458A (en) | High-temperature melt surface tension measuring device and measuring method | |
| CN101750149A (en) | Vacuum chamber radiation source temperature sensor | |
| CN108132100B (en) | Correcting device and correcting method of infrared thermometer | |
| CN209910832U (en) | Temperature measuring device applied to graphite high-temperature sintering furnace | |
| CN205246245U (en) | A calibrating device for contact high -temperature gas temperature sensor | |
| NO792962L (en) | DEVICE FOR AA PAID LEAKING OF COOLING FLUID IN STOVE NOZZLE | |
| Mei et al. | A sensor of blackbody cavity with transparent wall for rapidly measuring the liquid temperature | |
| CN209014160U (en) | Glass temperature measuring device and kiln | |
| CN206756317U (en) | A kind of induction melting multilevel hierarchy infrared temperature measurement apparatus | |
| CN109085707B (en) | Liquid crystal display testing equipment | |
| CN206038654U (en) | Melts test device with airtight space | |
| CN104864965A (en) | Liquid temperature measuring method | |
| CN104501962B (en) | Liquid temp measuring system | |
| CN106645157B (en) | A kind of measurement slag sulfur capacity and pre-arcing characterisitics comprehensive measurement device | |
| CN105067121B (en) | A kind of infrared thermometry device for high temperature alloy thermometric |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210210 Address after: 100081 building 23, 76 Xueyuan South Road, Haidian District, Beijing Patentee after: Gangyan Haopu Technology Co.,Ltd. Address before: 100081 No. 76 South College Road, Beijing, Haidian District Patentee before: NEW METALLURGY HI-TECH GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210428 Address after: 100081 building 23, No. 76, South Xueyuan Road, Haidian District, Beijing Patentee after: Gangyan Haopu Technology Co.,Ltd. Patentee after: Jiangsu Gangyan Haopu Technology Co.,Ltd. Address before: 100081 building 23, No. 76, South Xueyuan Road, Haidian District, Beijing Patentee before: Gangyan Haopu Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |