CN110017910A - A kind of multi-shell curing entity temperature sensor - Google Patents
A kind of multi-shell curing entity temperature sensor Download PDFInfo
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- CN110017910A CN110017910A CN201910349336.1A CN201910349336A CN110017910A CN 110017910 A CN110017910 A CN 110017910A CN 201910349336 A CN201910349336 A CN 201910349336A CN 110017910 A CN110017910 A CN 110017910A
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/04—Scales
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
- G01K1/12—Protective devices, e.g. casings for preventing damage due to heat overloading
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
Abstract
The present invention relates to a kind of multi-shell curing entity temperature sensors, including thermoelectricity resistance body, signal adapter and thermal sleeve, the thermal sleeve is closed at one end, the other end is provided with signal adapter, the thermoelectricity resistance body is connected by conducting wire with signal adapter, the thermal sleeve is divided into four cavitys, and first cavity is located at the closed end of thermal sleeve, for solidifying the thermoelectricity resistor；Second cavity is located at the top of first cavity, for carrying out hot partition to thermoelectricity resistance body and signal adapter；Third cavity surrounds first cavity and second cavity, for solidifying first cavity of sealing and second cavity；4th cavity is located at the top of third cavity, and surrounds the signal adapter, for carrying out soft seal to the signal adapter.Invention achieves high resistance to compression, vibration resistance, the purposes of intelligent outputting standard signal, extend service life.
Description
Technical field
The present invention relates to technical field of temperature measurement, more particularly to a kind of multi-shell curing entity temperature sensor.
Background technique
With the rapid development of science and technology, the increasingly automation of production process, will greatly improve product quality and labour
Productivity, reduces the consumption of material and the energy, to improve to each parameter measurement essence in scientific experiment and production process
The requirement of degree.In each department of national economy, the process flow of especially large and medium-sized enterprise, temperature be most important parameter it
One.According to incompletely statistics, it averagely accounts for about 60% or so of thermal parameter measurement point.So the quality of temperature detection, often exists
The quality of person production process and the superiority and inferiority of product quality are not largely directly affected.
Sensor technology is mostly a lot of in mechanical application, optimizes engineering machinery hair due to passing through sensor technology
Motivation, hydraulic system, Famous Construction Machinery Manufacturers and supplier can more effectively solve some critical issues of building site.Behaviour
Make personnel fatigue and technical ability, the safety of work and accuracy, the abrasion to equipment, downtime, reduce discharge and it is higher
Requirement of fuel efficiency etc., these are all that can change these by sensor technology.
Application of the sensor technology in engineering machinery, sensor is in engineering machinery using main including three aspects:
First is that the control of engine operating condition；Second is the control of hydraulic system；Third is the control of engineering machinery overall performance.And engineering
Machinery has following several types in the temperature sensor that diesel engine uses: the biography for observing and controlling fuel level and machine oil liquid level
The temperature sensor of sensor and control temperature.Equally occupy in the transmission of modern project machinery in Hydraulic Power Transmission System very heavy
The status wanted, it is not applied only in main operating mechanism, if the digging mechanism of excavator is driven, the vibration of vibrated roller
Mechanism, and all widely applied in modern project machine-walking system, steering system and some servo mechanisms.In hydraulic pressure system
The sensor applied in system mainly has the temperature sensor of control hydraulic fluid temperature；Control the pressure sensor of hydraulic fluid pressure；
Control the flow sensor of leakage rate and flow；Control the liquid level sensor etc. of hydraulic oil liquid level.
Engineering machinery working environment is that comparison is severe, in order to improve the safety and working performance of its work, it is necessary to
Effective control can be carried out to mechanical integrity, the sensor applied in this respect mainly has the main operating mechanism of control and braking
System wear detection sensor；Control the limit balance sensor of complete machine passability；Control overload for loading machine overload
Pressure sensor；For controlling the range sensor of paver overlay thickness；Temperature for the control of blending station temperature of charge passes
Sensor；In addition there are also the temperature types of the conditions such as temperature, humidity, the illumination of engineering machinery driving cabin workplace control, humidity formula, light
Volume sensor etc..
Currently, common all kinds of temperature sensors are used in engineering machinery field generally and will appear anti-high pressure, resistance to vibration
Dynamic performance is poor, leads to the defects of service life is short, temperature measurement accuracy fluctuation is big, sensor repeatability and stability is poor, can not be very
Meet engineering machinery field well to the high request of control temperature, so that not can guarantee the abrasion to equipment, downtime, reduction
The requirement etc. of discharge and higher fuel efficiency.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of multi-shell curing entity temperature sensors, so that temperature sensing
Device has the characteristic of high resistance to compression and vibration resistance.
The technical solution adopted by the present invention to solve the technical problems is: providing a kind of multi-shell curing entity temperature sensing
Device, including thermoelectricity resistance body, signal adapter and thermal sleeve, the thermal sleeve is closed at one end, and the other end is provided with signal adapter,
The thermoelectricity resistance body is connected by conducting wire with signal adapter, and the thermal sleeve is divided into four cavitys, and first cavity is located at heat
The closed end of casing, for solidifying the thermoelectricity resistor；Second cavity is located at the top of first cavity, for thermal resistance
Body and signal adapter carry out hot partition；Third cavity surrounds first cavity and second cavity, for solidifying sealing the
One cavity and second cavity；4th cavity is located at the top of third cavity, and surrounds the signal adapter, is used for
Soft seal is carried out to the signal adapter.
The thermoelectricity resistor is made of thermal resistance temperature-sensing element and heat-shrinkable T bush, by thermal resistance after the heat-shrinkable T bush contraction
Temperature-sensing element wraps up wherein, is filled with sealant at two end openings of the heat-shrinkable T bush.
First cavity is in conical structure, and the tapering of the conical structure is close to the closed end of thermal sleeve, institute
It states in first cavity filled with curing materials.
The curing materials include resistivity >=18M Ω * cm high purity water that mass percent is 50:5:20:25, water suction
Agent, sintering aluminum oxide and special silicate cement.
Heat-insulating material is filled in second cavity.
The heat-insulating material includes the magnesia-alumina material that mass percent is 65:25:10, fiber-like silicate material and glues
Tie agent.
Hard sealing material is filled in the third cavity.
The hard sealing material includes two layers, and wherein bottom uses epoxy sealing glue, and cladding uses rapid-curing cutback epoxy resin
Soft seal glue is filled in 4th cavity.
The soft seal glue is the heat-resisting soft sealant of resistance to -40-250 DEG C, shore hardness 50HA.
Beneficial effect
Due to the adoption of the above technical solution, compared with prior art, the present invention having the following advantages that and actively imitating
Fruit: the thermal sleeve of sensor is arranged to four cavitys by the present invention, by filling different fillers and progress to four cavitys
Sensor is effectively formed an entity by solidification, has reached the high resistance to compression of temperature sensor, vibration resistance, intelligent outputting standard signal
Purpose, it is poor to avoid the anti-high pressure of prior art products, anti-vibration performance, leads to that service life is short, temperature measurement accuracy fluctuation is big, passes
The defects of sensor repeatability and poor stability, it is adaptable in engineering machinery field to improve sensor, and intelligence degree is high, weight
Renaturation and excellent in stability, remarkable result with long service life.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is use schematic diagram of the invention.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
Embodiments of the present invention are related to a kind of multi-shell curing entity temperature sensor, as shown in Figure 1, including thermoelectricity resistance body
1, signal adapter 7 and thermal sleeve 5, the thermal sleeve 5 is closed at one end, and the other end is provided with signal adapter 7, the thermal resistance
Body 1 is connected by conducting wire with signal adapter 7, and the thermal sleeve 5 divides for four cavitys, and first cavity 3 is located at thermal sleeve
Closed end, for solidifying the thermoelectricity resistor 1；Second cavity 4 is located at the top of first cavity 3, for thermoelectricity resistance body
Hot partition is carried out with signal adapter；Third cavity 6 surrounds first cavity 3 and second cavity 4, for solidifying sealing the
One cavity 3 and second cavity 4；4th cavity 8 is located at the top of third cavity 6, and surrounds the signal adapter
7, for carrying out soft seal to the signal adapter 7.
In present embodiment, thermal resistance temperature-sensing element 2 is encapsulated in one section of heat-shrinkable T bush, when heat-shrinkable T bush is in temperature
Thermal contraction behavior can occur under the conditions of 250 DEG C, wherein by the package of thermal resistance temperature-sensing element 2, then by two ends of heat-shrinkable T bush
The organic silica gel that filling heatproof is -60~250 DEG C respectively at mouthful, the thermoelectricity resistance body 1 obtained after solidification have good resistance to height
Temperature, waterproof and insulate performance.
First cavity 3 is solidification thermal resistance body cavity body, which (is conducive to the absorption of moisture in conical structure
And volatilization), thermoelectricity resistance body 1 is placed in the cavity bottom, then close to the closed end of thermal sleeve by the tapering of the conical structure
Curing materials are filled by pressurizing device (Pg=5Mpa), first cavity 3 is made to become gapless after curing materials solidification
High-intensitive circular cone solid, the wherein formula of curing materials are as follows: include resistivity >=18M Ω * cm high purity water ((mass percent
50%)), BASF super strength water absorbent (mass percent 5%), 250 mesh sintering aluminum oxide (mass percent 20%) and
Special silicate cement (mass percent 25%) has thermal expansion compared to other materials using the curing materials of this formula
Coefficient is small, without heating room temperature fast-curing, solidifying the high advantage of compression strength.
Second cavity 4 is heat partition cavity, is filled with heat-insulating material in the cavity, specifically: the cavity is applied
With Pg=2.5Mpa pressure, the good magnesia-alumina material (mass percent 65%) of insulation effect and fiber-like silicate are filled
Material (mass percent 25%) and organic on a small quantity and inorganic binder (mass percent 10%), by being dried
Afterwards, thermoelectricity resistance body 1 and signal adapter 7 are carried out hot partition by heat partition cavity, and it is good that solid thermal separates effect, integral strength and are closed
Porosity is high, and heat resistance is good.
Third cavity 6 is hard seal cavity, is filled with hard sealing material in the cavity, specifically: take bottom to fill
Epoxy sealing glue (50%), the process program of cladding rapid-curing cutback epoxy resin (50%) encapsulation, the former requires shrinking percentage≤1%, glues
It is strong to tie power；The latter hardness is high, compression strength > 1MPa, water-fast, resistance to chemical corrosion is excellent, seals up first after solidification
A cavity and second cavity.
4th cavity 8 is signal adapter soft seal cavity, is filled with heat-resisting soft sealant in the cavity, specifically
Are as follows: resistance to -40-250 DEG C of filling, the heat-resisting soft sealant of shore hardness 50HA, to signal adapter 7 be sealed, after solidification
With outstanding sealing performance, ageing-resistant and indeformable, and then is formed and seal entire metal thermal sleeve 5.
Signal adapter 7 in present embodiment uses one piece of diameterSmall disk, when input thermal resistance signal
When, signal adapter exports the standard signal for meeting HART protocol, reaches the function of intelligent temperature change.
It can be seen that the thermal sleeve of sensor is arranged to four cavitys by the present invention, by different to four cavity fillings
Filler and solidified effectively by sensor formed an entity, be finally reached the high resistance to compression of temperature sensor, vibration resistance, intelligence
It can outputting standard signal, excellent in stability, function with long service life.
It works since multi-shell curing entity temperature sensor is under the more severe working environment of engineering machinery, heat
High temperature resistant can be used in casing, anti abrasive metal material is made, and temperature index is >=250 DEG C.In order to ensure work machine
The effect of temperature, the installation screw thread of multi-shell curing entity temperature sensor should have good with the installation screw thread of engineering mechanical device
Matching degree, can using accuracy of thread matching and screw thread glue method, so as to improve anti-vibration effect.
It, first will layering when the multi-shell curing entity temperature sensor gathering project mechanical equipment temperature methods stated in use
Solidify the SW with outside ring that an adaptation is added on the thread seal face of entity temperature sensor, then by multi-shell curing entity
Temperature sensor is mounted face with equipment and is screwed into 90 °, and is fastened with spanner, as shown in Fig. 2, when equipment starts work
When, multi-shell curing entity temperature sensor can accurately measure output intelligent standard signal parameter, reach control by temperature control device
The effect of control equipment safe working temperature.
It is measured by experiment, when being tested using the multi-shell curing entity temperature sensor in present embodiment,
Not only intelligence degree is high compared to currently available technology for temperature output effect, but also has reached the high resistance to compression of temperature sensor, resistance to vibration
The effect of dynamic, intelligent outputting standard signal, compares through overtesting, multi-shell curing entity temperature sensor temperature compared with prior art
The service life of product sensor increases by 8 times or more, revolutionizes the short situation of previous temperature sensor product service life.
Claims (10)
1. a kind of multi-shell curing entity temperature sensor, including thermoelectricity resistance body, signal adapter and thermal sleeve, the thermal sleeve one
End seal is closed, and the other end is provided with signal adapter, and the thermoelectricity resistance body is connected by conducting wire with signal adapter, and feature exists
In the thermal sleeve is divided into four cavitys, and first cavity is located at the closed end of thermal sleeve, for solidifying the thermoelectricity resistor；
Second cavity is located at the top of first cavity, for carrying out hot partition to thermoelectricity resistance body and signal adapter；Third chamber
Body surrounds first cavity and second cavity, for solidifying first cavity of sealing and second cavity；4th cavity position
In the top of third cavity, and the signal adapter is surrounded, for carrying out soft seal to the signal adapter.
2. multi-shell curing entity temperature sensor according to claim 1, which is characterized in that the thermoelectricity resistor is by thermoelectricity
Hinder temperature-sensing element and heat-shrinkable T bush composition, after the heat-shrinkable T bush contraction wherein by thermal resistance temperature-sensing element package, the pyrocondensation
Sealant is filled at two end openings of casing.
3. multi-shell curing entity temperature sensor according to claim 1, which is characterized in that first cavity is in circle
Cone structure, the tapering of the conical structure is in the closed end of thermal sleeve, first cavity filled with solidification material
Material.
4. multi-shell curing entity temperature sensor according to claim 3, which is characterized in that the curing materials include matter
Measure the resistivity >=18M Ω * cm high purity water, water absorbing agent, sintering aluminum oxide and extraordinary silicon that percentage is 50:5:20:25
Acid salt cement.
5. multi-shell curing entity temperature sensor according to claim 1, which is characterized in that filled out in second cavity
Filled with heat-insulating material.
6. multi-shell curing entity temperature sensor according to claim 5, which is characterized in that the heat-insulating material includes matter
Measure magnesia-alumina material, fiber-like silicate material and the binder that percentage is 65:25:10.
7. multi-shell curing entity temperature sensor according to claim 1, which is characterized in that filled out in the third cavity
Filled with hard sealing material.
8. multi-shell curing entity temperature sensor according to claim 7, which is characterized in that the hard sealing material includes
Two layers, wherein bottom uses epoxy sealing glue, and cladding uses rapid-curing cutback epoxy resin.
9. multi-shell curing entity temperature sensor according to claim 1, which is characterized in that filled out in the 4th cavity
Filled with soft seal glue.
10. multi-shell curing entity temperature sensor according to claim 9, which is characterized in that the soft seal glue be it is resistance to-
40-250 DEG C, the heat-resisting soft sealant of shore hardness 50HA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910349336.1A CN110017910A (en) | 2019-04-28 | 2019-04-28 | A kind of multi-shell curing entity temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910349336.1A CN110017910A (en) | 2019-04-28 | 2019-04-28 | A kind of multi-shell curing entity temperature sensor |
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| CN110017910A true CN110017910A (en) | 2019-07-16 |
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ID=67192697
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| CN201910349336.1A Pending CN110017910A (en) | 2019-04-28 | 2019-04-28 | A kind of multi-shell curing entity temperature sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375813A (en) * | 2019-07-18 | 2019-10-25 | 中国石油天然气股份有限公司 | A kind of integrated transducer and measurement method measuring fluid temperature (F.T.) and vortex frequency |
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