CN211452641U

CN211452641U - Thermocouple measuring end cleaning device

Info

Publication number: CN211452641U
Application number: CN202020265028.9U
Authority: CN
Inventors: 王中
Original assignee: Chuannahai Instrument Zhejiang Co ltd
Current assignee: Chuannahai Instrument Zhejiang Co ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2020-09-08
Anticipated expiration: 2030-03-06

Abstract

The utility model discloses a thermocouple measuring end cleaning device in the technical field of thermocouple equipment, including thermocouple tube and scraping device, the top of thermocouple tube is pegged graft and is had the terminal box, the right side wall of terminal box is pegged graft and is had the wire, the outside of thermocouple tube has cup jointed the reinforced pipe, the top of reinforced pipe is pegged graft in the bottom of terminal box, the bottom butt fusion of reinforced pipe has the screw thread seat, the outside of screw thread seat has the lantern ring through the threaded fixation, the bottom of the lantern ring is opened flutedly, it has the slider to inlay in the recess; this thermocouple measurement end cleaning device's setting installs scraping device in the outside of thermocouple tube bottom, and when the thermocouple used in flowing gas, the gaseous rotatory flabellum of drive that flows rotated, and scraping device rotatory and then strike off the bottom surface of thermocouple tube under spiral flabellum's effect, gets rid of thermocouple tube surface adnexed impurity to improve the accuracy of thermocouple tube to temperature measurement.

Description

Thermocouple measuring end cleaning device

Technical Field

The utility model relates to a thermocouple equipment technical field specifically is a thermocouple measuring end cleaning device.

Background

The thermocouple is a commonly used temperature measuring element in a temperature measuring instrument, directly measures temperature, converts a temperature signal into a thermal electromotive force signal, and converts the thermal electromotive force signal into the temperature of a measured medium through an electric instrument (a secondary instrument). The appearance of various thermocouples is very different according to needs, but the basic structures of the thermocouples are almost the same, and the thermocouples are generally composed of main parts such as a thermode, an insulating sleeve protection tube, a junction box and the like, and are generally matched with a display instrument, a recording instrument and an electronic regulator for use. The existing thermocouple measuring end cleaning device has a serious problem that when the existing thermocouple measuring end cleaning device is used in flowing gas, a device for cleaning impurities attached to the end surface of a thermocouple tube is lacked, so that the accuracy of temperature measurement of the thermocouple tube can be influenced, and therefore the thermocouple measuring end cleaning device is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thermocouple measurement end cleaning device to when the thermocouple measurement end cleaning device who proposes in solving above-mentioned background art uses in the gas that flows, lack the device to the adnexed impurity clearance of thermocouple pipe tip surface, thereby can influence the problem of thermocouple pipe to temperature measurement's accuracy.

In order to achieve the above object, the utility model provides a following technical scheme: a thermocouple measuring end cleaning device comprises a thermocouple tube and a scraping device, wherein a junction box is inserted at the top of the thermocouple tube, the right side wall of the junction box is inserted with a lead, the outer part of the thermocouple tube is sleeved with a reinforced tube, the top of the reinforcing pipe is inserted into the bottom of the junction box, the bottom of the reinforcing pipe is welded with a threaded seat, a lantern ring is fixed outside the threaded seat through threads, a groove is formed in the bottom of the lantern ring, a sliding block is embedded in the groove, the scraping device is positioned outside the bottom end of the thermocouple tube and comprises a cross and a scraping blade, the cross is welded at the bottom of the sliding block, the outer side wall of the cross is welded with spiral fan blades, the inner side wall of the cross is provided with a U-shaped groove, one end of the scraping piece is embedded in the U-shaped groove, and the other end of the scraping piece is in contact with the outer side wall of the bottom end of the thermocouple tube.

Preferably, the cross comprises a first U-shaped rod and a second U-shaped rod, and the second U-shaped rod is perpendicularly welded with the first U-shaped rod.

Preferably, the bottom of the lantern ring is provided with a first connecting ring and a second connecting ring through bolts, the first connecting ring is located outside the second connecting ring, and the first connecting ring, the second connecting ring and the groove at the bottom of the lantern ring form a T-shaped groove.

Preferably, a ball is embedded in the top of the sliding block, and the sliding block is connected with the lantern ring in a sliding mode through the ball.

Compared with the prior art, the beneficial effects of the utility model are that: this thermocouple measurement end cleaning device's setting, structural design is reasonable, installs scraping device in the outside of thermocouple tube bottom, and when the thermocouple used in the gas that flows, the gas that flows drove rotatory flabellum and rotates, and scraping device rotatory under helical fan's effect and then strike off the bottom surface of thermocouple tube, gets rid of thermocouple tube surface adnexed impurity to improve thermocouple tube to temperature measurement's accuracy.

Drawings

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

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

fig. 3 is a schematic view of the bottom view of the present invention.

In the figure: the thermocouple tube 100, the junction box 110, the lead 111, the reinforcing tube 120, the threaded seat 121, the collar 130, the first connecting ring 131, the second connecting ring 132, the slider 140, the ball 141, the scraping device 200, the cross 210, the helical blade 211, the first U-shaped rod 212, the second U-shaped rod 213 and the scraper 220.

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.

The utility model provides a thermocouple measuring end cleaning device for get rid of adnexed dust and solution in thermocouple pipe surface, thereby improve thermocouple pipe to temperature measurement's accuracy, please refer to fig. 1-3, including thermocouple pipe 100 and scraping device 200.

Referring to fig. 1-3 again, a junction box 110 is inserted into the top of the thermocouple tube 100, a lead 111 is inserted into the right side wall of the junction box 110, a reinforcing tube 120 is sleeved outside the thermocouple tube 100, the top of the reinforcing tube 120 is inserted into the bottom of the junction box 110, a threaded seat 121 is welded to the bottom of the reinforcing tube 120, a collar 130 is fixed to the outside of the threaded seat 121 through threads, a groove is formed in the bottom of the collar 130, a slider 140 is embedded in the groove, the thermocouple tube 100 is used for measuring the temperature in an external medium, the junction box 110 and the lead 111 are used for mounting an electronic component and converting a temperature signal into a thermoelectromotive force signal to be transmitted outwards, and the reinforcing tube 120, the collar 130 and the slider 140 are used for mounting a scraping device 200 in a mutual.

Referring to fig. 1-3 again, the scraping device 200 is located outside the bottom end of the thermocouple tube 100, the scraping device 200 includes a cross 210 and a scraper blade 220, the cross 210 is welded at the bottom of the sliding block 140, a spiral blade 211 is welded on the outer side wall of the cross 210, a U-shaped groove is formed on the inner side wall of the cross 210, one end of the scraper blade 220 is embedded in the U-shaped groove, the other end of the scraper blade 220 contacts with the outer side wall of the bottom end of the thermocouple tube 100, the cross 210 is used for installing and fixing the scraper blade 220, the scraper blade 220 is used for scraping impurities attached to the outer side wall of the bottom end of the thermocouple tube 100, and the spiral blade 211 is.

Referring to fig. 3, in order to improve the stability of the cross 210, the cross 210 includes a first U-shaped bar 212 and a second U-shaped bar 213, and the second U-shaped bar 213 is perpendicularly welded to the first U-shaped bar 212.

Referring to fig. 2 again, in order to stably rotate the slider 140 along the bottom of the collar 130, the first and

second connection rings

131 and 132 are mounted on the bottom of the collar 130 by bolts, the first connection ring 131 is located outside the second connection ring 132, and the first and

second connection rings

131 and 132 and the groove on the bottom of the collar 130 form a T-shaped groove.

Referring to fig. 2 again, in order to reduce the friction force generated when the sliding block 140 and the collar 130 rotate, the ball 141 is embedded on the top of the sliding block 140, and the sliding block 140 is slidably connected with the collar 130 through the ball 141.

The working principle is as follows: when the surface of the fixed object and the temperature of the liquid solution need to be measured, the collar 130 is rotated to separate the collar 130 from the reinforcing tube 120, so that the scraping device 200 is separated from the thermocouple tube 100, and the end of the thermocouple tube 100 is directly contacted with the fixed surface and is inserted into the liquid solution to measure the temperature; when the temperature of the flowing gaseous medium needs to be measured, the thermocouple tube 100 is integrally inserted into a chamber to be measured, the spiral fan blade 211 drives the cross 210 to rotate under the action of flowing air flow or water flow, the cross 210 drives the scraper blade 220 to rotate, the scraper blade 220 is continuously contacted with the surface of the thermocouple tube 100, and impurities attached to the surface of the thermocouple tube 100 are removed, so that the accuracy of measuring the temperature of the gaseous medium by the thermocouple tube 100 is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the description of such combinations is not exhaustive in the present specification only for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A thermocouple measuring end cleaning device is characterized in that: the thermocouple tube scraping device comprises a thermocouple tube (100) and a scraping device (200), a junction box (110) is inserted into the top of the thermocouple tube (100), a lead (111) is inserted into the right side wall of the junction box (110), a reinforcing tube (120) is sleeved outside the thermocouple tube (100), the top of the reinforcing tube (120) is inserted into the bottom of the junction box (110), a threaded seat (121) is welded to the bottom of the reinforcing tube (120), a lantern ring (130) is fixed to the outside of the threaded seat (121) through threads, a groove is formed in the bottom of the lantern ring (130), a sliding block (140) is embedded in the groove, the scraping device (200) is located outside the bottom end of the thermocouple tube (100), the scraping device (200) comprises a cross frame (210) and a scraping blade (220), the cross frame (210) is welded to the bottom of the sliding block (140), and spiral fan blades (211) are welded to the outer side wall of the cross frame (210), the inner side wall of the cross (210) is provided with a U-shaped groove, one end of the scraping piece (220) is embedded in the U-shaped groove, and the other end of the scraping piece (220) is in contact with the outer side wall of the bottom end of the thermocouple tube (100).

2. A thermocouple measuring end cleaning device according to claim 1, wherein: the cross (210) comprises a first U-shaped rod (212) and a second U-shaped rod (213), and the second U-shaped rod (213) is perpendicularly welded with the first U-shaped rod (212).

3. A thermocouple measuring end cleaning device according to claim 1, wherein: the bottom of the collar (130) is provided with a first connecting ring (131) and a second connecting ring (132) through bolts, the first connecting ring (131) is positioned outside the second connecting ring (132), and the first connecting ring (131), the second connecting ring (132) and the groove at the bottom of the collar (130) form a T-shaped groove.

4. A thermocouple measuring end cleaning device according to claim 1, wherein: the top of the sliding block (140) is embedded with a ball (141), and the sliding block (140) is connected with the lantern ring (130) in a sliding mode through the ball (141).