CN214843686U

CN214843686U - Absolute ultrasonic magnetostrictive temperature sensor

Info

Publication number: CN214843686U
Application number: CN202121353134.3U
Authority: CN
Inventors: 张飞
Original assignee: Shandong Kemai Measurement And Control Technology Co ltd
Current assignee: Shandong Kemai Measurement And Control Technology Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-11-23
Anticipated expiration: 2031-06-18

Abstract

The utility model discloses an absolute formula ultrasonic wave magnetostriction temperature sensor, including the equipment main part, equipment main part outer wall fixed mounting has the ring flange, and equipment main part inner wall fixed mounting has insulating fixed sleeve, and insulating fixed sleeve inner wall one side fixed mounting has first heat conduction membrane, and insulating fixed sleeve inner wall opposite side fixed mounting has the second heat conduction membrane, and first heat conduction membrane one side fixed mounting has an upper electrode, and second heat conduction membrane one side fixed mounting has the lower electrode. The utility model discloses an absolute formula ultrasonic wave magnetostriction temperature sensor, through setting up the ring flange, can be very convenient fix the equipment main part on the device that awaits measuring, through setting up first heat conduction membrane and second heat conduction membrane, both can play fine guard action, also can be more quick with the outside heat transfer of temperature sensor to its inside, improve temperature sensor's sensitivity, reduce the delay time of temperature reaction, the overall structure is simple, it is more convenient to use.

Description

Absolute ultrasonic magnetostrictive temperature sensor

Technical Field

The utility model relates to a temperature sensor technical field specifically is an absolute formula ultrasonic wave magnetostrictive temperature sensor.

Background

Ultrasonic magnetostrictive temperature sensors have the potential to provide reliable temperature measurements for many applications, including temperature monitoring and spatial temperature distribution display of real-time temperatures and the entire industrial process in places where temperature monitoring is critical, such as glass and low-melting metal melting, processing industries, nuclear power plants, and the like. Thermocouples, thermal resistors and radiation pyrometers commonly used in industry have many problems, such as: the thermocouple and the thermal resistance temperature sensor are often influenced by temperature drift in the long-term working process, the amplitude of the output signal voltage is small, the output signal voltage is easy to be interfered by electromagnetism and difficult to transmit in a long distance, and one sensor can only measure the temperature of one position; radiation pyrometers are designed and manufactured as a function of the radiation energy of an object over a range of wavelengths and its temperature, and require a line of sight between the surface being measured and the radiation thermometer, which is not generally feasible in closed industrial high temperature processes. However, in some industrial applications, the temperature of different positions must be monitored, for example, the temperature gradient measurement of high-temperature fluid at the positions of a booster, a reheater and the like in a nuclear pressurized water reactor, a diesel engine, a steam turbine and other engine cylinders in the energy field; measuring the temperature of multiple layers of hot working media (steam, water and the like) such as a boiler, a steam drum and the like, and measuring the temperature gradient in a single medium; important power equipment such as a transformer and the like judges the local overheating condition and carries out multipoint temperature measurement in a temperature rise test; in order to ensure that the conversion rate of feed gas or liquid reaches the requirement in large-scale equipment such as reactors in the fields of petroleum, chemical engineering and the like, multipoint temperature measurement on different heights of a catalyst bed layer and measurement of temperature gradient in synthesis and process monitoring of other materials and the like are carried out. Furthermore, failure of the connection point in the thermocouple is also of concern, particularly when used in high temperature and high vibration environments, and the required compensating wires also impose many limitations in use and increase costs.

The prior art has the following defects or problems:

1. the existing absolute ultrasonic magnetostrictive temperature sensor has large delay on the reaction of the temperature and cannot cause the reaction in time;

2. the existing absolute ultrasonic magnetostrictive temperature sensor has poor stability of the whole device, and cannot be applied to complex and severe working conditions such as high temperature, high pressure, closed environment, strong vibration and the like.

Disclosure of Invention

An object of the utility model is to prior art's weak point, provide an absolute formula ultrasonic wave magnetostrictive temperature sensor to there is great delay in the reaction to the temperature that proposes in solving the background art, the reaction that causes that can not be timely, and overall device stability is not good, can not be applied to problem under the complicated abominable operating mode such as high temperature, high pressure, closed environment and strong vibrations.

In order to achieve the above object, the utility model provides a following technical scheme: an absolute ultrasonic magnetostrictive temperature sensor comprises an equipment main body, wherein a flange plate is fixedly arranged on the outer wall of the equipment main body, an insulating fixed sleeve is fixedly arranged on the inner wall of the equipment main body, a first heat-conducting film is fixedly arranged on one side of the inner wall of the insulating fixed sleeve, a second heat-conducting film is fixedly arranged on the other side of the inner wall of the insulating fixing sleeve, an upper electrode is fixedly arranged on one side of the first heat-conducting film, a lower electrode is fixedly arranged on one side of the second heat-conducting film, a circular permanent magnet is fixedly arranged in the insulating fixing sleeve, a magnetostrictive waveguide wire is fixedly arranged in the equipment main body, a cylindrical element bin is fixedly arranged on one side of the equipment main body, a cable connector is fixedly mounted on one side of the cylindrical element bin, a cable is fixedly mounted on one side of the cable connector, and a transmitter is fixedly mounted at one end of the cable.

As the utility model discloses a preferred technical scheme, the ring flange is provided with two, the even symmetric distribution of ring flange is at equipment main part upper surface.

As the utility model discloses an optimal technical scheme, insulating fixed sleeve sets up to the cylinder shape, insulating fixed sleeve is the synthetic combined material.

As the preferred technical scheme of the utility model, first heat-conducting membrane adopts silica gel material to make with the second heat-conducting membrane.

As the preferred technical scheme of the utility model, the upper electrode and the lower electrode are made of copper materials.

As the preferred technical scheme of the utility model, the magnetostrictive waveguide silk is made for the Fe-Ga material, cylinder component storehouse inside fixed mounting has detection coil and constant elasticity device.

As the preferred technical scheme of the utility model, cable connector is provided with two, cable connector uniform symmetry distributes at the cable both ends.

Compared with the prior art, the utility model provides an absolute formula ultrasonic wave magnetostriction temperature sensor possesses following beneficial effect:

1. according to the absolute type ultrasonic magnetostrictive temperature sensor, the flange plate is arranged, so that the equipment main body can be very conveniently fixed on a device to be tested, the first heat-conducting film and the second heat-conducting film are arranged, so that a good protection effect can be achieved, heat outside the temperature sensor can be quickly transferred to the inside of the temperature sensor, the sensitivity of the temperature sensor is improved, and the delay time of temperature reaction is reduced;

2. the absolute type ultrasonic magnetostrictive temperature sensor is made of the Fe-Ga material by arranging the magnetostrictive waveguide wire, has strong high temperature resistance, can be suitable for various severe environments, is additionally provided with the detection coil and the constant-elasticity device, also aims to prevent the reduction of output voltage caused by tensile stress, and has the advantages that the thermal expansion rate enables the waveguide wire to have measurement errors caused by relative displacement with other devices, and the effect of replacing damping to inhibit echo noise is achieved.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of a partial structure of the present invention;

FIG. 3 is a schematic view of a partial structure of the present invention;

fig. 4 is a schematic view of a partial structure of the present invention.

In the figure: 1. an apparatus main body; 2. a flange plate; 3. insulating the fixed sleeve; 4. a first thermally conductive film; 5. a second thermally conductive film; 6. an upper electrode; 7. a lower electrode; 8. a ring-shaped permanent magnet; 9. magnetostrictive waveguide filaments; 10. a cylindrical element bin; 11. a cable connector; 12. a cable; 13. and a transmitter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, in this embodiment: the utility model provides an absolute formula ultrasonic wave magnetostrictive temperature sensor, including equipment

main part

1, 1 outer wall fixed mounting of equipment main part has

ring flange

2, 1 inner wall fixed mounting of equipment main part has insulating

fixed sleeve

3, 3 inner wall one side fixed mounting of insulating fixed sleeve have first

heat conduction membrane

4, 3 inner wall opposite side fixed mounting of insulating fixed sleeve have second

heat conduction membrane

5, 4 one side fixed mounting of first heat conduction membrane have

last electrode

6, 5 one side fixed mounting of second heat conduction membrane have

bottom electrode

7, 3 inside fixed mounting of insulating fixed sleeve have ring type

permanent magnet

8, 1 inside fixed mounting of equipment main part has

magnetostrictive waveguide silk

9, 1 one side fixed mounting of equipment main part has cylindrical element storehouse 10, 10 one side fixed mounting of cylindrical element storehouse has

cable connector

11, 11 one side fixed mounting of cable connector has

cable

12, 12 one end fixed mounting has changer 13.

In the embodiment, two flange plates 2 are arranged, the flange plates 2 are uniformly and symmetrically distributed on the upper surface of the equipment main body 1, and the equipment main body 1 is fixed for better convenience in detection; the insulating fixed sleeve 3 is arranged in a cylindrical shape, and the insulating fixed sleeve 3 is made of an artificially synthesized composite material and has a good insulating effect; the first heat-conducting film 4 and the second heat-conducting film 5 are made of silica gel materials, so that the heat-conducting property is good, heat outside the temperature sensor can be quickly transferred to the electrode and then transferred to the dielectric medium inside the electrode, and meanwhile, the ductility is certain; the upper electrode 6 and the lower electrode 7 are made of copper materials, and the metal electrodes have good thermal conductivity, so that the time for transferring heat from the outside to the dielectric medium can be reduced, and the time constant of delay is reduced to the maximum extent; the magnetostrictive waveguide wire 9 is made of Fe-Ga material, and the detection coil and the constant-elasticity device are fixedly arranged in the cylindrical element bin 10, so that the magnetostrictive waveguide wire has good high-temperature resistance; the cable connectors 11 are arranged in two numbers, and the cable connectors 11 are uniformly and symmetrically distributed at two ends of the cable 12, so as to better fix the cable 12 and facilitate better work.

The utility model discloses a theory of operation and use flow: the absolute ultrasonic magnetostrictive temperature sensor can conveniently fix the equipment main body 1 on a device to be measured by arranging the flange plate 2, by arranging the first heat-conducting film 4 and the second heat-conducting film 5, the device not only can play a good role in protection, but also can quickly transfer the heat outside the temperature sensor to the inside of the temperature sensor, improve the sensitivity of the temperature sensor, reduce the delay time of temperature reaction, by arranging the magnetostrictive waveguide wire 9 made of Fe-Ga material, the magnetostrictive waveguide wire has strong high temperature resistance, can be applied to various severe environments, the detection coil and the constant-elasticity device are added at the same time, so that the reduction of output voltage caused by tensile stress is prevented, the measurement error caused by the relative displacement between the magnetostrictive waveguide wire 9 and other devices is caused by the thermal expansion rate, and the effect of replacing damping to inhibit echo noise is achieved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An absolute ultrasonic magnetostrictive temperature sensor, characterized in that: the device comprises a device main body (1), wherein a flange plate (2) is fixedly mounted on the outer wall of the device main body (1), an insulating fixing sleeve (3) is fixedly mounted on the inner wall of the device main body (1), a first heat-conducting film (4) is fixedly mounted on one side of the inner wall of the insulating fixing sleeve (3), a second heat-conducting film (5) is fixedly mounted on the other side of the inner wall of the insulating fixing sleeve (3), an upper electrode (6) is fixedly mounted on one side of the first heat-conducting film (4), a lower electrode (7) is fixedly mounted on one side of the second heat-conducting film (5), a circular permanent magnet (8) is fixedly mounted inside the insulating fixing sleeve (3), a magnetostrictive waveguide wire (9) is fixedly mounted inside the device main body (1), a cylindrical element bin (10) is fixedly mounted on one side of the device main body (1), and a cable connector (11) is fixedly mounted on one side of the cylindrical element bin (10), and a cable (12) is fixedly installed on one side of the cable connector (11), and a transmitter (13) is fixedly installed at one end of the cable (12).

2. An absolute ultrasonic magnetostrictive temperature sensor according to claim 1, characterized in that: the two flange plates (2) are arranged, and the flange plates (2) are uniformly and symmetrically distributed on the upper surface of the equipment main body (1).

3. An absolute ultrasonic magnetostrictive temperature sensor according to claim 1, characterized in that: the insulating fixed sleeve (3) is arranged to be cylindrical, and the insulating fixed sleeve (3) is made of an artificial composite material.

4. An absolute ultrasonic magnetostrictive temperature sensor according to claim 1, characterized in that: the first heat-conducting film (4) and the second heat-conducting film (5) are made of silica gel materials.

5. An absolute ultrasonic magnetostrictive temperature sensor according to claim 1, characterized in that: the upper electrode (6) and the lower electrode (7) are made of copper materials.

6. An absolute ultrasonic magnetostrictive temperature sensor according to claim 1, characterized in that: the magnetostrictive waveguide wire (9) is made of Fe-Ga materials, and the detection coil and the constant-elasticity device are fixedly arranged in the cylindrical element bin (10).

7. An absolute ultrasonic magnetostrictive temperature sensor according to claim 1, characterized in that: the number of the cable connectors (11) is two, and the cable connectors (11) are uniformly and symmetrically distributed at two ends of the cable (12).