CN207798284U - A kind of leakproofness high flexibility multipoint thermocouple - Google Patents
A kind of leakproofness high flexibility multipoint thermocouple Download PDFInfo
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- CN207798284U CN207798284U CN201721860849.1U CN201721860849U CN207798284U CN 207798284 U CN207798284 U CN 207798284U CN 201721860849 U CN201721860849 U CN 201721860849U CN 207798284 U CN207798284 U CN 207798284U
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- high flexibility
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Abstract
The utility model discloses a kind of leakproofness high flexibility multipoint thermocouples, it is characterised in that：The leakproofness high flexibility multipoint thermocouple includes flexible multi-point thermocouple element, flange, seal chamber, anti-explosion terminal box and leakage early warning pressure gauge, and on flange top, upper part is arranged terminal box mounting bracket, is connect with anti-explosion terminal box for the seal chamber setting.The design structure is simply clear, is closely connected and does not influence each other between each component, and design is scientific and reasonable, it is more to measure points, space is saved, easy for installation, workload is small,, count more, suitable temperature gradient thermometric fast suitable for low temperature, high pressure, strong vibration environment, and thermal response time.
Description
Technical field
The utility model is related to a kind of thermocouples, relate generally to a kind of leakproofness high flexibility multipoint thermocouple.
Background technology
Thermocouple is the detecting element in automation process control system, is a kind of Automation Control Instruments.Thermocouple is carried on the back
Scape principle is pyroelectric effect, and phenomenon is when two kinds of heterogeneity metal endpoints connect to be formed with loop circuit, if between two-end-point
There is temperature difference, then have electric current generation between circuit, the higher node of temperature is known as hot junction in circuit, this point is normally placed at survey
At temperature；Temperature lower end is known as cold junction, the i.e. output end of thermocouple, and output signal is DC voltage, passes through A/D converter
It is converted into digital signal, and is calculated by software, actual temperature value is transformed into.In petrochemical industry, metallurgy and power industry
In, the application of thermocouple is very wide.
The thermocouple temperature sensor being often used at present in the environment of low temperature, high pressure uses armouring sealing, temperature sensor
The mode of low temperature glue is smeared between temperature-sensitive point and protection sleeve pipe, but when the temperature sensor presence response of this sealing means production
Between it is long, dynamic measurement effect is poor, pressure resistance is small, temperature-sensitive point is easily opened a way the shortcomings of, cause that measurement effect is poor, measured value is inaccurate
Deng can also there is major safety risks in use.
Invention content
To solve the above problems, the utility model discloses a kind of leakproofness high flexibility multipoint thermocouple, its object is to
Solve the problem of that thermocouple element leads to safety accident during thermometric because poor sealing causes testing element to be revealed, simultaneously
Solve that current thermocouple element thermometric is long there are the response time, dynamic measurement effect is poor, pressure resistance is small, temperature-sensitive point easily open circuit etc. is scarce
Point, the problem for causing that measurement effect is poor, measured value is inaccurate etc..
In order to reach object above, the utility model provides the following technical solutions：A kind of leakproofness high flexibility multiple spot thermoelectricity
It is even, it is characterised in that：The leakproofness high flexibility multipoint thermocouple includes flexible multi-point thermocouple element, flange, seal chamber, prevents
Quick-fried terminal box and leakage early warning pressure gauge, on flange top, terminal box mounting bracket is arranged in upper part for the seal chamber setting, with
Anti-explosion terminal box connects.The design structure is simply clear, is closely connected and does not influence each other between each component, and design science is closed
Reason, measurement points are more, save space, and easy for installation, workload is small, are suitable for low temperature, high pressure, strong vibration environment, and thermal response
Time is fast, points are more, is suitble to temperature gradient thermometric.
As a kind of improvement of the utility model, connection is welded and fixed between the seal chamber and terminal box mounting bracket,
Connection is welded and fixed between seal chamber and flange.The high pressure sealing that the design of seal chamber can solve Multi-point metal shielding thermo-electric is asked
Topic ensures that the safe operation of user in the course of work, terminal box mounting bracket connect seal chamber and anti-explosion terminal box, play
One good connection function, while fixing device is arranged at its both ends, ensure that the leakproofness of the equipment.
As a kind of improvement of the utility model, the flexible multi-point thermocouple element passes through flange, seal chamber, explosion-proof connects
Wire box bottom is connect with the terminal winding displacement inside anti-explosion terminal box, and the flexible multi-point thermocouple element and flange base welding are solid
Fixed connection.Multipoint thermocouple is connected to by Multilayer sealing device in anti-explosion terminal box, is external in external equipment, is enhanced and is set
Standby reliability.
As a kind of improvement of the utility model, pass through once sealing at the top of the flexible multi-point thermocouple element and flange
Device connects, and is connect by secondary sealer with anti-explosion terminal box bottom, the once sealing device and secondary sealer
It is fastenedly connected for bolt.Sealing element temperature-sensitive point is welded as a whole with shell, so that sealing element is enable to respond quickly environment temperature, avoids
The defect of response lag, laser welding technology is reliable, technical maturity, enhances the stability and reliability of sealing element making.
As a kind of improvement of the utility model, the leakage early warning pressure gauge is arranged on the right side of seal chamber, passes through sealing
Curved connection mechanism is connect with seal chamber.It is accumulated with the use of equipment, equipment can be worn, pre- in the addition leakage of one end of equipment
Alert pressure gauge, leakage precaution device can show real-time temperature, and when the temperature of survey is excessively high passes through limit value, the instant terminal of operator is surveyed
Temperature action, prevents from resulting in greater loss, and reveals and be equipped with threaded connector at precaution device, can facilitate and be replaced to it,
Authentic communication is provided for process control and diagnosis.
As a kind of improvement of the utility model, the curved connection mechanism of sealing, which includes that sealing is curved, to be connect cavity and is arranged close
The curved ball valve for connecing cavity lower end is sealed, is connected by sealing device three times between the ball valve and seal chamber, the leakage early warning pressure
Power table lower end is connected through a screw thread with the curved cavity upper end that connects is sealed, and the sealing is curved to be connect between cavity and ball valve through cutting ferrule bolt
It is fastened and fixed.Sealing device improves the safety coefficient of temperature measuring equipment three times, is threadedly coupled easy to operate, easy for installation, cutting ferrule spiral shell
Bolt is fastenedly connected not only good seal performance, but also bearing capacity is big.
As a kind of improvement of the utility model, the sealing device three times is sealedly and fixedly connected for bolt welding.Using
The mode of welding is sealed, and existing welding and assembling technics are ripe, and production cost is relatively low and processing technology is simple, easily operated.
As a kind of improvement of the utility model, flexible multi-point thermocouple element lower end is set up separately with catalyst contact site
It is equipped with hard alloy wear-resistant sleeve.The material of high-wear resistance, it is the wear-resisting of hard alloy dexterously to devise detachable, material
Casing solves minor diameter flexible multi-point thermocouple and is easy the defect being worn through with catalyst contact portion, substantially prolongs soft
The service life of property multipoint thermocouple.
As a kind of improvement of the utility model, described be welded to connect is all made of laser welding.Such mode can will be warm
Degree sensor seal temperature-sensitive end is sealed, and is solved in the past using close caused by low temperature glue seal temperature sensor temperature-sensitive end
The deficiencies of effect is poor is sealed, while improving the pressure-resistant performance and vibration-resistant property of sealing element, sealing element is made to be enable to respond quickly environment
Temperature avoids the defect of response lag, and existing laser welding technology is reliable, and technical maturity enhances the stabilization of sealing element making
Property and reliability.
The opposite and prior art, the invention has the advantages that：
1）The design structure is simply clear, is closely connected and does not influence each other between each component, and design is scientific and reasonable, measures
Points are more, save space, and easy for installation, workload is small, fast suitable for low temperature, high pressure, strong vibration environment, and thermal response time,
Points are more, are suitble to temperature gradient thermometric；
2）It is welded and fixed connection between the seal chamber and terminal box mounting bracket, is welded and fixed between seal chamber and flange
Connection.The design of seal chamber can solve the problems, such as the high pressure sealing of Multi-point metal shielding thermo-electric, ensure user in the course of work
Safe operation, terminal box mounting bracket connect seal chamber and anti-explosion terminal box, play a good connection function, solid simultaneously
Determine device to be arranged at its both ends, ensure that the leakproofness of the equipment；
3）The flexible multi-point thermocouple element passes through in flange, seal chamber, anti-explosion terminal box bottom and anti-explosion terminal box
The terminal winding displacement in portion connects, and the flexible multi-point thermocouple element is welded and fixed with flange base to be connect.Multipoint thermocouple passes through
Multilayer sealing device is connected in anti-explosion terminal box, is external in external equipment, and the reliability of equipment is enhanced；
4）The flexible multi-point thermocouple element is connect at the top of flange by once sealing device, with explosion-proof wiring cassette bottom
Portion is connected by secondary sealer, and the once sealing device is fastenedly connected with secondary sealer for bolt.Sealing element sense
Warm spot is welded as a whole with shell, and sealing element is made to be enable to respond quickly environment temperature, avoids the defect of response lag, Laser Welding
Connection technology is reliable, technical maturity, enhances the stability and reliability of sealing element making；
5）The leakage early warning pressure gauge is arranged on the right side of seal chamber, is connect with seal chamber by sealing curved connection mechanism.With
The use accumulation of equipment, equipment can be worn, and in one end of equipment addition leakage early warning pressure gauge, leakage precaution device can be shown
Show real-time temperature, when the temperature of survey is excessively high passes through limit value, the instant terminal thermometric action of operator prevents the damage for causing bigger
It loses, and reveals and be equipped with threaded connector at precaution device, can facilitate and it is replaced, be provided reliably for process control and diagnosis
Information；
6）The curved connection mechanism of sealing, which includes that sealing is curved, to be connect cavity and is arranged in the curved ball valve for connecing cavity lower end of sealing, institute
It states and is connected by sealing device three times between ball valve and seal chamber, the leakage early warning pressure gauge lower end curved connects on cavity with sealing
End is connected through a screw thread, and the sealing curved connect is fastenedly connected between cavity and ball valve by cutting ferrule bolt.Sealing device carries three times
The high safety coefficient of temperature measuring equipment, is threadedly coupled easy to operate, and easy for installation, cutting ferrule bolt is fastenedly connected both good seal performances,
Bearing capacity is big again；
7）The sealing device three times is sealedly and fixedly connected for bolt welding.It is sealed by the way of welding, is now welded
Technical maturity is filled, production cost is relatively low and processing technology is simple, easily operated；
8）Thermocouple sealing element lower end is provided with hard alloy wear-resistant sleeve with catalyst contact portion.High abrasion
The material of performance dexterously devises the wear-resistant sleeve that detachable, material is hard alloy, solves minor diameter flexible multi-point heat
Galvanic couple is easy the defect being worn through with catalyst contact portion, substantially prolongs the service life of flexible multi-point thermocouple；
9）Described be welded to connect is all made of laser welding.Such mode can carry out temperature sensor sealing element temperature-sensitive end
Sealing solves the deficiencies of in the past poor using sealing effect caused by low temperature glue seal temperature sensor temperature-sensitive end, improves simultaneously
The pressure-resistant performance and vibration-resistant property of sealing element, makes sealing element be enable to respond quickly environment temperature, avoids lacking for response lag
It falls into, existing laser welding technology is reliable, and technical maturity enhances the stability and reliability of sealing element making；
10）The utility model production operation is easy to the batch production of sealing element and the encapsulation of temperature sensor, avoids sense
Low temperature glue hardening time is long, filling is time-consuming and laborious, the production cycle is long caused by the technique of warm spot package low temperature glue, labour effect
The low disadvantage of rate, large batch of can produce.
Description of the drawings
Fig. 1 is a kind of good airproof performance flexible multi-point thermocouple overall structure diagram of the utility model；
Reference numerals list：
1, flexible multi-point thermocouple element；2, flange；3, seal chamber；4, anti-explosion terminal box；5, early warning pressure gauge is revealed；6、
Terminal box mounting bracket；7, terminal winding displacement；8, once sealing device；9, secondary sealer；10, curved connection mechanism is sealed
101, sealing is curved connects cavity；102, ball valve；11, sealing device three times；12, it is threadedly coupled；13, cutting ferrule bolt；14
Hard alloy wear-resistant sleeve.
Specific implementation mode
In order to make technical problems, technical solutions and advantages to be solved be more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
It should be noted that when element is referred to as " being fixed on " or " being set to " another element, it can be directly another
On one element or it is connected on another element.When an element is known as " being connected to " another element, it can
To be directly to another element or be indirectly connected on another element.
It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on ... shown in the drawings or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, not indicating or implying the indicated device or element must have
Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
Embodiment 1：Fig. 1 is participated in, now a kind of leakproofness high flexibility multipoint thermocouple provided by the utility model is said
It is bright.The leakproofness high flexibility multipoint thermocouple includes flexible multi-point thermocouple element 1, flange 2, seal chamber 3, anti-explosion terminal box
4 and leakage early warning pressure gauge 5, the setting of the seal chamber 3 in 2 top of flange, upper part, terminal box mounting bracket 6 is set, and it is anti-
Quick-fried terminal box 4 connects.The design structure is simply clear, is closely connected and does not influence each other between each component, design is scientific and reasonable,
It is more to measure points, saves space, easy for installation, workload is small, is suitable for low temperature, high pressure, strong vibration environment, and thermal response time
Soon, it counts more, is suitble to temperature gradient thermometric.
Embodiment 2：Fig. 1 is participated in, as a kind of improvement of the utility model, the seal chamber 3 and terminal box mounting bracket 6
Between be welded and fixed connection, connection is welded and fixed between seal chamber and flange.The design of seal chamber can solve multiple spot armouring heat
The high pressure sealing problem of galvanic couple, ensure the course of work in user safe operation, terminal box mounting bracket connect seal chamber with
Anti-explosion terminal box plays a good connection function, while fixing device is arranged at its both ends, ensure that the close of the equipment
Feng Xing.
Embodiment 3：Fig. 1 is participated in, as a kind of improvement of the utility model, the flexible multi-point thermocouple element 1 passes through
Flange 2, seal chamber 3,4 bottom of anti-explosion terminal box are connect with the terminal winding displacement 7 inside anti-explosion terminal box 4, the flexible multi-point heat
Galvanic couple element 1 is welded and fixed with 2 bottom of flange and connect.Flexible multi-point thermocouple element is connected to explosion-proof by Multilayer sealing device
It in terminal box, is external in external equipment, enhances the reliability of equipment.
Embodiment 4：Participate in Fig. 1, as a kind of improvement of the utility model, the flexible multi-point thermocouple element 1 and method
2 top of orchid is connected by once sealing device 8, is connect by secondary sealer 9 with 4 bottom of anti-explosion terminal box, described primary
Sealing device 8 is fastenedly connected with secondary sealer 9 for bolt.Sealing element temperature-sensitive point is welded as a whole with shell, makes sealing element
It is enable to respond quickly environment temperature, avoids the defect of response lag, laser welding technology is reliable, technical maturity, enhances close
The stability and reliability that sealing makes.
Embodiment 5：Fig. 1 is participated in, as a kind of improvement of the utility model, the leakage early warning pressure gauge 5 is arranged close
3 right side of chamber is sealed, is connect with seal chamber 3 by sealing curved connection mechanism 10.It is accumulated with the use of equipment, equipment can be worn,
In one end of equipment addition leakage early warning pressure gauge, leakage precaution device can show real-time temperature, and limit is passed through when the temperature of survey is excessively high
When definite value, the instant terminal thermometric action of operator prevents from resulting in greater loss, and reveals to be equipped at precaution device and be threadedly coupled
Head, can facilitate and be replaced to it, and authentic communication is provided for process control and diagnosis.
Embodiment 6：Fig. 1 is participated in, as a kind of improvement of the utility model, the curved connection mechanism 10 of sealing includes that sealing is curved
It connects cavity 101 and is arranged and sealing the curved ball valve 102 for connecing 101 lower end of cavity, pass through between the ball valve 102 and seal chamber 3
Sealing device 11 connects three times, and 5 lower end of leakage early warning pressure gauge is connected through a screw thread with curved 101 upper end of cavity that connects is sealed,
The sealing curved connect is fastened and fixed between cavity 101 and ball valve 102 by cutting ferrule bolt 13.Sealing device improves thermometric three times
The safety coefficient of equipment, threaded connection is easy to operate, and easy for installation, cutting ferrule bolt is fastenedly connected not only good seal performance, but also pressure-bearing energy
Power is big.
Embodiment 7：Fig. 1 is participated in, as a kind of improvement of the utility model, the sealing device three times 11 is bolt welding
It is sealedly and fixedly connected.It is sealed by the way of welding, existing welding and assembling technics are ripe, and production cost is relatively low and processing technology is simple
It is single, it is easily operated.
Embodiment 8：Participate in Fig. 1, as a kind of improvement of the utility model, 1 lower end of flexible multi-point thermocouple element
Catalyst contact portion is provided with hard alloy wear-resistant sleeve 14.The material of high-wear resistance, dexterously devise it is detachable,
Material is the wear-resistant sleeve of hard alloy, solves minor diameter flexible multi-point thermocouple and is easy to be worn through with catalyst contact portion
Defect, substantially prolong the service life of flexible multi-point thermocouple.
Embodiment 9：Fig. 1 is participated in, as a kind of improvement of the utility model, described be welded to connect is all made of laser welding.
Temperature sensor sealing element temperature-sensitive end can be sealed by such mode, solved and sensed in the past using low temperature glue seal temperature
The deficiencies of sealing effect caused by device temperature-sensitive end is poor, while the pressure-resistant performance and vibration-resistant property of sealing element are improved, make sealing element
It is enable to respond quickly environment temperature, avoids the defect of response lag, existing laser welding technology is reliable, and technical maturity enhances
The stability and reliability that sealing element makes.
The utility model can also be by least one of embodiment 2,3,4,5,6,7,8,9 technical characteristics and implementation
The combination of example 1 forms new embodiment.
Technological means disclosed in the utility model is not limited only to the technological means disclosed in the above embodiment, also
Include by the above technical characteristic arbitrarily the formed technical solution of combination.It should be pointed out that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the scope of protection of the utility model.
Claims (10)
1. a kind of leakproofness high flexibility multipoint thermocouple, it is characterised in that：The leakproofness high flexibility multipoint thermocouple includes soft
Property multipoint thermocouple element, flange, seal chamber, anti-explosion terminal box and leakage early warning pressure gauge, the seal chamber is arranged in flange
Top, upper part are arranged terminal box mounting bracket, are connect with anti-explosion terminal box.
2. a kind of leakproofness high flexibility multipoint thermocouple according to claim 1, it is characterised in that：The seal chamber with connect
It is welded and fixed connection between wire box holder, connection is welded and fixed between seal chamber and flange.
3. a kind of leakproofness high flexibility multipoint thermocouple according to claim 1, it is characterised in that：The flexible multi-point heat
Galvanic couple element passes through flange, seal chamber, anti-explosion terminal box bottom to be connect with the terminal winding displacement inside anti-explosion terminal box, described soft
Property multipoint thermocouple element is welded and fixed with flange base to be connect.
4. a kind of leakproofness high flexibility multipoint thermocouple according to claim 1, it is characterised in that：The flexible multi-point heat
Galvanic couple element is connect at the top of flange by once sealing device, is connect by secondary sealer with anti-explosion terminal box bottom.
5. a kind of leakproofness high flexibility multipoint thermocouple according to claim 4, it is characterised in that：The once sealing dress
It sets and is fastenedly connected for bolt with secondary sealer.
6. a kind of leakproofness high flexibility multipoint thermocouple according to claim 1, it is characterised in that：The leakage early warning pressure
Power table is arranged on the right side of seal chamber, is connect with seal chamber by sealing curved connection mechanism.
7. a kind of leakproofness high flexibility multipoint thermocouple according to claim 6, it is characterised in that：The sealing is curved to pick
Structure, which includes that sealing is curved, to be connect cavity and is arranged in the curved ball valve for connecing cavity lower end of sealing, passes through three between the ball valve and seal chamber
Secondary sealing device is fixed, and the leakage early warning pressure gauge lower end is connected through a screw thread with the curved cavity upper end that connects is sealed, the sealing
Curved connect is fastenedly connected between cavity and ball valve by cutting ferrule bolt.
8. a kind of leakproofness high flexibility multipoint thermocouple according to claim 7, it is characterised in that：The sealing dress three times
It is set to bolt welding sealed fixing device.
9. a kind of leakproofness high flexibility multipoint thermocouple according to claim 1, it is characterised in that：The flexible multi-point heat
Galvanic couple element lower end is provided with hard alloy wear-resistant sleeve with catalyst contact portion.
10. a kind of leakproofness high flexibility multipoint thermocouple according to Claims 2 or 3 or 8, it is characterised in that：The weldering
It connects in succession and is all made of laser welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721860849.1U CN207798284U (en) | 2017-12-27 | 2017-12-27 | A kind of leakproofness high flexibility multipoint thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721860849.1U CN207798284U (en) | 2017-12-27 | 2017-12-27 | A kind of leakproofness high flexibility multipoint thermocouple |
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| CN207798284U true CN207798284U (en) | 2018-08-31 |
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| CN201721860849.1U Active CN207798284U (en) | 2017-12-27 | 2017-12-27 | A kind of leakproofness high flexibility multipoint thermocouple |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865780A (en) * | 2021-09-15 | 2021-12-31 | 北京长城华瑞科技有限公司 | Method for installing pressure gauge in temperature measurement brake cabinet of hydroelectric generating set |
-
2017
- 2017-12-27 CN CN201721860849.1U patent/CN207798284U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865780A (en) * | 2021-09-15 | 2021-12-31 | 北京长城华瑞科技有限公司 | Method for installing pressure gauge in temperature measurement brake cabinet of hydroelectric generating set |
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