CN209102228U - A kind of multi-measuring point temperature sensor - Google Patents
A kind of multi-measuring point temperature sensor Download PDFInfo
- Publication number
- CN209102228U CN209102228U CN201822130003.3U CN201822130003U CN209102228U CN 209102228 U CN209102228 U CN 209102228U CN 201822130003 U CN201822130003 U CN 201822130003U CN 209102228 U CN209102228 U CN 209102228U
- Authority
- CN
- China
- Prior art keywords
- thermo wires
- measuring point
- temperature sensor
- metal armor
- armor layers
- 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
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a kind of multi-measuring point temperature sensors, including metal armor layers, the internal order of the metal armor layers arranges more thermo wires, it is characterized in that, between the more thermo wires, it is isolated between thermo wires and metal armor layers by alumina insulating layer, the more thermo wires are axially formed multiple temperature measuring points in the metal armor layers, further, the more thermo wires include a positive thermo wires and the cathode thermo wires that matches with the temperature measuring point quantity, it is corresponding with a cathode thermo wires on the position of each temperature measuring point and the positive thermo wires carries out weldering company.The beneficial effects of the utility model are: can be overcome using the Insulation stopping of aluminium oxide production thermocouple since Insulation Material leakage caused by armor breakage, insulation performance reduce, thermocouple detects failure；Further, thermo wires arrangement is carried out in the way of shared anode, the quantity of temperature measuring point can be further increased in the armor of identical bore, while keeping the structure of thermocouple and wiring more simple.
Description
Technical field
The utility model relates to temperature element technical fields, more particularly to a kind of multi-measuring point temperature sensor.
Background technique
With chemical industry, the development of petroleum industry, the technology controlling and process of production process is increasingly refined, especially to production
The control of temperature of reactor used in process generally requires to monitor click-through trip temperatures multiple in reactor.At present on the market
Most common temperature-detecting device is thermocouple, it is combined by the conductor of two kinds of heterogeneities or semiconductor both ends forms one and close
Circuit is closed, the binding site at both ends is respectively measurement end and the reference end of thermocouple will when the temperature difference of two basic change point
Thermocurrent is generated in the loop.If the measurement end of thermocouple and reference end are there are the temperature difference, display instrument will indicate thermoelectricity
Temperature value corresponding to the thermoelectrical potential occasionally generated.The thermoelectrical potential of thermocouple will measure end temperature with side and increase and increase, it big
Small related with the temperature at thermocouple material and both ends, unrelated with the length and diameter size of thermocouple wire.
In the prior art if you need to be monitored simultaneously to the multi-point temperature in reactor, usually there are two types of modes: one is
Using multiple single thermocouples, i.e. the corresponding temperature measuring point of a thermocouple is made of multiple thermocouples.The drawbacks of this mode
Be occupy installation space it is big, while increase installation workload and distribution difficulty.By taking EO reactor as an example, its general temperature measuring point
At 30 or more, if opening up 30 or more holes on EO reactor, 30 or more casings is installed in reactor, are bound to
The structure that will lead to reactor is extremely complex, and 30 or more flange connections, and leakage point can undoubtedly increase, reactor
Integral strength also will receive influence.Another mode is the current common multipoint thermocouple both at home and abroad using multipoint thermocouple
Thermometric product is usually that multiple armored temperature measuring cores are encapsulated in a protection metal pipe, although this mode spatially has one
It is fixed to improve, but thermometric core can not be with physical contact between media, and the temperature-responsive time is longer, and measurement result often has thermally conductive mistake
Difference.Meanwhile the Insulation stopping of these multipoint thermocouples all uses magnesia, it is made to be not applied for EO reactor, because of EO
During the work time, the armor of thermocouple is easily made armor damaged to reactor by air-flow erosion and catalyst friction, and armour
Layer is filled once damaged, magnesia leakage reacts with vapor will lead to that the generation of EO catalyst is hardened, loses activity, Jin Erying
Reaction gas flow is rung, reaction temperature is caused to be distorted；If magnesia leakage is serious, the insulating properties of thermocouple will be substantially reduced, even
It is not available.
Utility model content
In order to solve the above technical problems, the purpose of the utility model is to provide a kind of multi-measuring point temperature sensor, by more
Thermocouple wire armouring forms multiple temperature measuring points in a protection sleeve pipe, while using insulation filling of the aluminium oxide as thermocouple
Material, overcomes above-mentioned the deficiencies in the prior art.
In view of the above-mentioned problems, the technical solution that the utility model uses is: a kind of multi-measuring point temperature sensor is provided,
Including metal armor layers, the internal order of the metal armor layers arranges more thermo wires, between the more thermo wires, thermo wires and gold
Belong to and being isolated between armor by alumina insulating layer, the more thermo wires are axially formed multiple in the metal armor layers
Temperature measuring point.
Preferably, the more thermo wires include the positive thermo wires and cathode thermo wires that quantity matches, each temperature measuring point
Position on be corresponding with a positive thermo wires and a cathode thermo wires carries out weldering company.
Preferably, the more thermo wires are radially circumferentially evenly distributed in metal armor layers.
Preferably, the more thermo wires include an anode thermo wires and the cathode idol to match with the temperature measuring point quantity
Thread, it is corresponding with a cathode thermo wires on the position of each temperature measuring point and the positive thermo wires carries out weldering company.
Preferably, the more cathode thermo wires are circumferentially evenly distributed in metal armor layers, and the anode thermo wires is located at
The center location of the circumference.
Preferably, the quantity of the temperature measuring point is set as 5~10.
Preferably, the multiple temperature measuring point is uniformly distributed along the axial direction of the metal armor layers, the two neighboring thermometric
The distance between point >=10 centimetres.
Preferably, total length≤30 meter of the metal armor layers.
Preferably, the purity of the alumina insulating layer is not less than 99.97%.
Preferably, the metal armor layers are made of high rigidity and the good stainless steel of ductility, the metal armor layers
Thickness be not less than 0.8mm.
The beneficial effects of the utility model are: 1, using aluminium oxide production thermocouple insulation filling material, can be significantly
Increase the wear-resisting property of heat-flash galvanic couple, overcome well in the prior art as armor it is damaged caused by insulating materials leakage,
Insulation performance reduce, thermocouple detection failure situations such as, simultaneously because aluminium oxide performance stablize, can be adapted for high temperature, vaporization,
A variety of environment such as corrosion, oxidation, reproducibility use, and application range is wider；2, more by forming more thermo wires armourings together
Measuring point formula thermocouple, structure is simple, easy to use, can greatly reduce the land occupation position of thermocouple in the reactor；3, into one
Step, thermo wires arrangement is carried out in the way of shared anode, temperature measuring point can be further increased in the armor of identical bore
Quantity, while keeping the structure of thermocouple and wiring more simple.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment 1；
Fig. 2 is the view in transverse section of Fig. 1；
Fig. 3 is the structural schematic diagram of the utility model embodiment 2；
Fig. 4 is the view in transverse section of Fig. 3.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
Embodiment 1
Fig. 1~2 are please referred to, the utility model embodiment includes:
The inside of a kind of multi-measuring point temperature sensor, including metal armor layers 1, the metal armor layers 1 is circumferentially uniform
Ten thermo wires, respectively five positive thermo wires 21~25 and five cathode thermo wires 31~35 are arranged, described ten thermo wires are described
Five temperature measuring points 41~45 are sequentially formed along axial direction in metal armor layers 1, successively there is a positive thermo wires on each temperature measuring point
Connect with a cathode thermo wires weldering, five temperature measuring points 41~45 are uniformly distributed along the axial direction of metal armor layers 1, described ten idols
It is isolated between silk, between thermo wires and metal armor layers 1 by alumina insulating layer 5, the purity of the alumina insulating layer is
99.99%, the metal armor layers 1 are made of high rigidity and the good stainless steel of ductility, the thickness of the metal armor layers 1
Degree is 0.8mm.
Embodiment 2
Fig. 3~4 are please referred to, the utility model embodiment includes:
The inside of a kind of multi-measuring point temperature sensor, including metal armor layers 1, the metal armor layers 1 is circumferentially uniform
Arrange five cathode thermo wires 31~35, the center location of the circumference is arranged a positive thermo wires 2, in the metal armor layers 1
It is successively uniformly arranged five temperature measuring points 41~45 along axial direction, there is a cathode thermo wires and the positive thermo wires 2 on each temperature measuring point
Weldering connects, and is isolated between the six roots of sensation thermo wires, between thermo wires and metal armor layers 1 by alumina insulating layer 5, the aluminium oxide is exhausted
The purity of edge layer is 99.99%, and the metal armor layers 1 are made of high rigidity and the good stainless steel of ductility, the metal
Armor 1 with a thickness of 0.8mm.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of multi-measuring point temperature sensor, including metal armor layers, the internal order of the metal armor layers arranges more idols
Silk, which is characterized in that it is isolated between the more thermo wires, between thermo wires and metal armor layers by alumina insulating layer, it is described
More thermo wires are axially formed multiple temperature measuring points in the metal armor layers.
2. a kind of multi-measuring point temperature sensor according to claim 1, which is characterized in that the more thermo wires include thermometric
The positive thermo wires and cathode thermo wires that point quantity matches are corresponding with a positive thermo wires and one on the position of each temperature measuring point
Cathode thermo wires carries out weldering company.
3. a kind of multi-measuring point temperature sensor according to claim 2, which is characterized in that the more thermo wires are in the gold
Belong to circumferentially evenly distributed in armor.
4. a kind of multi-measuring point temperature sensor according to claim 1, which is characterized in that the more thermo wires include one
Positive thermo wires and the more cathode thermo wires to match with the temperature measuring point quantity are corresponding with one on the position of each temperature measuring point
Root cathode thermo wires and the positive thermo wires carry out weldering company.
5. a kind of multi-measuring point temperature sensor according to claim 4, which is characterized in that the more cathode thermo wires are in gold
Belong to circumferentially evenly distributed in armor, the anode thermo wires is located at the center location of the circumference.
6. a kind of multi-measuring point temperature sensor according to claim 1, which is characterized in that the quantity of the temperature measuring point is arranged
It is 5~10.
7. a kind of multi-measuring point temperature sensor according to claim 1, which is characterized in that the multiple temperature measuring point is described in
The axial direction of metal armor layers is uniformly distributed, the distance between two neighboring described temperature measuring point >=10 centimetres.
8. a kind of multi-measuring point temperature sensor according to claim 1, which is characterized in that the overall length of the metal armor layers
≤ 30 meters of degree.
9. a kind of multi-measuring point temperature sensor according to claim 1, which is characterized in that the alumina insulating layer it is pure
Degree is not less than 99.5%.
10. a kind of multi-measuring point temperature sensor according to claim 1, which is characterized in that the metal armor layers use
The high rigidity and good stainless steel of ductility is made, the thickness of the metal armor layers is not less than 0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822130003.3U CN209102228U (en) | 2018-12-19 | 2018-12-19 | A kind of multi-measuring point temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822130003.3U CN209102228U (en) | 2018-12-19 | 2018-12-19 | A kind of multi-measuring point temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209102228U true CN209102228U (en) | 2019-07-12 |
Family
ID=67162986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822130003.3U Active CN209102228U (en) | 2018-12-19 | 2018-12-19 | A kind of multi-measuring point temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209102228U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443580A (en) * | 2018-12-19 | 2019-03-08 | 宁波富德能源有限公司 | A kind of multi-measuring point temperature sensor |
-
2018
- 2018-12-19 CN CN201822130003.3U patent/CN209102228U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443580A (en) * | 2018-12-19 | 2019-03-08 | 宁波富德能源有限公司 | A kind of multi-measuring point temperature sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109443580A (en) | A kind of multi-measuring point temperature sensor | |
| JP6600730B2 (en) | Broadband molten metal liquid level measuring device and thermal system using multi-contact temperature sensor | |
| CN104596661B (en) | Thermometric armoured thermocouple | |
| CN100437042C (en) | Flow sensor | |
| CN103398798B (en) | A kind of thermocouple temperature measuring apparatus for hyperbaric environment | |
| CN102944320B (en) | Cooling-free type high temperature sensor based on composite material | |
| CN209102228U (en) | A kind of multi-measuring point temperature sensor | |
| CN107014513B (en) | Sleeve type platinum resistor temperature sensing device | |
| CN201306168Y (en) | A multi-point thermocouple for high-temperature ultra-long oil well | |
| CN103292861B (en) | For the preparation method of totally-enclosed pressure environment fluid level measuring gauge | |
| CN202928708U (en) | Contact temperature measuring sensor with short thermal response time | |
| CN106352995A (en) | Thermocouple-based temperature measurement device | |
| CN203519207U (en) | Heat flux sensor | |
| CN202770546U (en) | Contact type temperature measurement sensor with short thermal response time | |
| CN102831967B (en) | High-temperature-resistant low-noise cable | |
| CN201983875U (en) | Multi-point temperature measurement probe with low damage and accurate location | |
| CN204476396U (en) | Oil well is even fine with test tube line | |
| CN206756326U (en) | Thermocouple | |
| CN203396509U (en) | A thermocouple temperature measuring device used under high pressure environment | |
| CN205981478U (en) | High temperature noble -metal thermocouple | |
| CN212007573U (en) | Instrument for measuring temperature of molten metal liquid | |
| CN211262517U (en) | High-pressure-resistant high-precision temperature sensor | |
| RU2700726C1 (en) | Heat flux sensor | |
| CN106092357A (en) | A kind of Multi-section temperature-measuring thermocouple | |
| CN201819751U (en) | Combined thermocouple |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |