CN210719429U

CN210719429U - Pressure type thermometer

Info

Publication number: CN210719429U
Application number: CN201922050449.XU
Authority: CN
Inventors: 杜所勤; 褚衍虎; 史连杰
Original assignee: Zibo New Era Instrument Manufacturing Co Ltd
Current assignee: Zibo New Era Instrument Manufacturing Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-06-09
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a pressure type thermometer, which comprises a pressure gauge shell and a thermometer bulb component, wherein the pressure gauge shell is provided with an upper shell which is fixedly connected with a lower shell, the lower right side of the lower shell is fixedly connected with a nylon nut, the inside of the upper shell is provided with a pointer through a needle holder, the upper shell is fixedly provided with glass, and the glass is fixed on the surface of the upper shell through a sealing rubber ring; the temperature-bulb component is provided with a clamp, the left side of the clamp is provided with a protection spring, and the inside of the protection spring is wrapped with a capillary tube; the upper end of the thermal bulb component is provided with a connecting nut, the lower side of the connecting nut is provided with a fixing nut, and the lower end of the fixing nut is fixedly connected with the thermal bulb component through a thermal bulb conduit connecting seat. The pressure type thermometer has the advantages that the bulb device is arranged on the bulb component through the bulb conduit connecting seat, the traditional welding mode is replaced, and the stability of the bulb component under the high-temperature and high-pressure conditions is improved.

Description

Pressure type thermometer

Technical Field

The utility model relates to a temperature measuring instrument equipment science and technology technical field specifically is a pressure type thermometer.

Background

The pressure thermometer is widely applied to temperature measurement and control in the production process in the industries of light textiles, pharmacy and food, and is suitable for measuring the temperature of various mediums which do not have corrosion effect on copper in industrial occasions; a pressure thermometer for measuring the temperature of the liquid in the closed temperature measuring system based on the change relationship between the saturated vapor pressure and the temperature of the liquid; the temperature bulb and the connecting pipe, and the connecting pipe and the gauge outfit spring pipe are connected together by a soldering method; under the working conditions of high temperature and high pressure, the welding spot is easy to be detached, and the temperature sensing medium is easy to leak, so that the whole pressure type thermometer is scrapped.

In order to overcome the defects in the market, the technology of improving the pressure type thermometer device is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model solves the technical problem that the thermal bulb and the connecting pipe, and the connecting pipe and the gauge outfit spring pipe in the prior art are connected together by tin soldering; under the working conditions of high temperature and high pressure, the welding spot is easy to be detached, the leakage of the temperature sensing medium is caused, and the whole pressure type thermometer is scrapped. The bulb-warming conduit connecting seat, the bulb-warming component, the fixing nut and the connecting nut have the advantages that the bulb-warming device is installed on the bulb-warming component through the bulb-warming conduit connecting seat, the traditional welding mode is replaced, and the stability of the bulb-warming component under the high-temperature and high-pressure conditions is improved.

In order to achieve the above object, the utility model provides a following technical scheme: a pressure type thermometer comprises a pressure gauge shell and a thermometer bulb component, wherein an upper shell is arranged on the pressure gauge shell and fixedly connected with a lower shell, a nylon nut is fixedly connected to the lower right side of the lower shell, a pointer is arranged in the upper shell through a needle support, glass is fixedly arranged on the upper shell, and the glass is fixed on the surface of the upper shell through a sealing rubber ring;

the temperature-bulb component is provided with a clamp, the left side of the clamp is provided with a protection spring, and the inside of the protection spring is wrapped with a capillary tube; the upper end of the thermal bulb component is provided with a connecting nut, the lower side of the connecting nut is provided with a fixing nut, and the lower end of the fixing nut is fixedly connected with the thermal bulb component through a thermal bulb conduit connecting seat; the inside of the pressure gauge shell is provided with a spring body part, the right lower side of the spring body part is provided with a sealing plug, and the left lower side of a spring pipe is connected with a pressure gauge joint.

Preferably, the pressure gauge shell consists of a nylon nut, a lower shell and an upper shell, and the nylon nut is connected with the thermal bulb component through a capillary tube.

Preferably, the upper end of the bulb part is connected with the bulb conduit connecting seat, and the bulb conduit connecting seat consists of a fixing nut and a connecting nut.

Preferably, the spring body part is a Z-shaped structure made of metal materials, a fixing hole is formed in the spring body part, and the middle of the spring body part is arranged in an arc shape.

Preferably, the upper end of the sealing plug is fixedly connected in a hole groove formed in the spring tube.

Preferably, the spring tube is arranged in a C shape in the pressure gauge shell, and the section of the spring tube is in an oval shape.

Preferably, the cross sections of the fixing nut and the connecting nut are both regular hexagon structures, and the length of the connecting nut is smaller than that of the fixing nut.

Preferably, the connecting nut is internally provided with a red copper pad, and the red copper pad is arranged between the fixing nut and the connecting nut.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the thermal bulb device is arranged on the thermal bulb part through the thermal bulb conduit connecting seat, and replaces the traditional welding mode, so that the stability of the thermal bulb part under the working conditions of high temperature and high pressure is improved;

2. the protective spring is sleeved on the capillary tube, so that the situation that the capillary tube is broken due to frequent bending is avoided;

3. glass passes through inside the sealed rubber ring seal installation at the epitheca, increases the sealing performance of manometer casing.

Drawings

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

FIG. 2 is a schematic view of the structural bulb component of the present invention;

FIG. 3 is a top view of the upper case of the present invention;

FIG. 4 is a schematic view of the upper case structure of the present invention;

FIG. 5 is a schematic view of the structural glass of the present invention;

FIG. 6 is a schematic view of the sealing rubber ring of the present invention;

fig. 7 is a top view of the spring body of the present invention;

fig. 8 is a side view of the spring body component of the present invention;

FIG. 9 is a top view of the lower case of the structure of the present invention;

FIG. 10 is a side view of the lower shell of the structure of the present invention;

FIG. 11 is an enlarged schematic view of the structure A of the present invention;

FIG. 12 is an enlarged view of the structure B of the present invention;

FIG. 13 is a schematic view of the spring tube of the present invention;

FIG. 14 is a sectional view of the spring tube according to the present invention;

fig. 15 is a top view of the structural indicator of the present invention;

fig. 16 is a side view of the structural indicator of the present invention;

FIG. 17 is a schematic view of the sealing plug of the present invention;

FIG. 18 is a side view of the sealing plug of the present invention;

FIG. 19 is a cross-sectional view of the sealing plug of the present invention;

FIG. 20 is a schematic view of the structure of the thermal bulb component of the present invention;

FIG. 21 is a schematic view of the structural bulb part of the present invention;

FIG. 22 is a schematic view of the structural connecting seat of the thermal bulb tube of the present invention;

fig. 23 is a schematic view of the structural connection nut of the present invention;

fig. 24 is a top view of the structural coupling nut of the present invention;

fig. 25 is a schematic view of the structural fixing nut of the present invention;

fig. 26 is a top view of the structural fixing nut of the present invention;

FIG. 27 is a schematic view of the red copper pad of the present invention;

fig. 28 is a top view of the clip of the present invention;

fig. 29 is a side view of the clip of the present invention.

Reference numbers in the figures: 1. a pressure gauge housing; 2. a nylon nut; 3. a lower case; 4. an upper shell; 5. a bulb component; 6. a red copper pad; 7. a clip; 8. a protection spring; 9. a pointer; 10. a needle holder; 11. glass; 12. sealing the rubber ring; 13. a spring body member; 14. sealing the plug; 15. a spring tube; 16. a pressure gauge joint; 17. a bulb conduit connecting seat; 18. fixing a nut; 19. a connecting nut; 20. a capillary tube.

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. 1-29, the present invention provides a technical solution: a pressure type thermometer comprises a pressure gauge shell 1 and a temperature bulb component 5, wherein an upper shell 4 is installed on the pressure gauge shell 1, the upper shell 4 is fixedly connected with a lower shell 3, a nylon nut 2 is fixedly connected to the lower right side of the lower shell 3, the pressure gauge shell 1 is composed of the nylon nut 2, the lower shell 3 and the upper shell 4, and the nylon nut 2 is connected with the temperature bulb component 5 through a capillary tube 20; a pointer 9 is arranged in the upper shell 4 through a needle holder 10, glass 11 is fixedly arranged on the upper shell 4, and the glass 11 is fixed on the surface of the upper shell 4 through a sealing rubber ring 12; the upper end of the bulb part 5 is connected with a bulb conduit connecting seat 17, and the bulb conduit connecting seat 17 consists of a fixing nut 18 and a connecting nut 19; the spring body part 13 is of a Z-shaped structure made of metal materials, a fixing hole is formed in the spring body part 13, and meanwhile the middle of the spring body part 13 is arranged in an arc shape; the cross sections of the fixing nut 18 and the connecting nut 19 are both regular hexagon structures, and the length of the connecting nut 19 is smaller than that of the fixing nut 18; the red copper pad 6 is arranged in the connecting nut 19, and the red copper pad 6 is arranged between the fixing nut 18 and the connecting nut 19; the temperature wrap part 5 is provided with a clamp 7, the left side of the clamp 7 is provided with a protection spring 8, and the inside of the protection spring 8 is wrapped with a capillary tube 20; the upper end of the thermal bulb component 5 is provided with a connecting nut 19, the lower side of the connecting nut 19 is provided with a fixing nut 18, and the lower end of the fixing nut 18 is fixedly connected with the thermal bulb component 5 through a thermal bulb conduit connecting seat 17; a spring body part 13 is arranged in the pressure gauge shell 1, a sealing plug 14 is arranged on the right lower side of the spring body part 13, and the left lower side of a spring tube 15 is connected with a pressure gauge joint 16; the upper end of the sealing plug 14 is fixedly connected in a hole groove formed in the spring tube 15; the spring tube 15 is arranged in a C shape in the pressure gauge shell 1, and the section of the spring tube 15 is oval;

the bulb warming device is arranged on the bulb warming component 5 through a bulb warming conduit connecting seat 17, the bulb warming conduit connecting seat 17 comprises a fixing nut 18 and a connecting nut 19, the traditional welding mode is replaced, and the stability of the bulb warming component 5 under the working condition of high temperature and high pressure is improved;

the temperature bulb on the temperature bulb part 5 is an element which is directly contacted with a measured medium to sense temperature change, so that the temperature bulb has high strength, small expansion coefficient, high heat conductivity and corrosion resistance; the thermal bulb can be made of copper alloy, steel or stainless steel according to different filled working substances and measured media;

capillary 20: the seamless circular tube is a seamless circular tube formed by cold drawing of copper or steel materials and is used for transmitting pressure change; if its diameter is thinner and its length is longer, the hysteresis phenomenon of the transmitted pressure is more serious; that is, the more sluggish the thermometer responds to the measured temperature; however, the thinner the capillary tube 20, the higher the accuracy of the instrument at the same length; the capillary 20 is easily broken and broken, and therefore, must be protected by the protection spring 8.

In using the pressure type thermometer, at the time of measurement, the bulb part 5 is placed in the measured medium; the pressure of the working substance such as gas in the thermal bulb 5 is increased due to the temperature rise, the pressure change is transmitted to the spring tube 15 through the capillary tube 20, the spring tube 15 generates certain deformation, and then the temperature value to be measured is indicated by the pointer 9; the temperature-bulb part 5, the capillary tube 20 and the spring tube 15 form a closed system, and working substances filled in the system can be gas, liquid or saturated vapor of low-boiling-point liquid; this is the entire process of operation of the pressure thermometer.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A pressure thermometer, comprising a pressure gauge housing (1) and a bulb part (5), characterized in that: an upper shell (4) is installed on the pressure gauge shell (1), the upper shell (4) is fixedly connected with the lower shell (3), a nylon nut (2) is fixedly connected to the lower right side of the lower shell (3), a pointer (9) is installed inside the upper shell (4) through a needle support (10), glass (11) is fixedly installed on the upper shell (4), and the glass (11) is fixed on the surface of the upper shell (4) through a sealing rubber ring (12);

the temperature-bulb component (5) is provided with a clamp (7), the left side of the clamp (7) is provided with a protection spring (8), and the inside of the protection spring (8) is wrapped with a capillary tube (20); the upper end of the thermal bulb component (5) is provided with a connecting nut (19), the lower side of the connecting nut (19) is provided with a fixing nut (18), and the lower end of the fixing nut (18) is fixedly connected with the thermal bulb component (5) through a thermal bulb conduit connecting seat (17); the inside of the pressure gauge shell (1) is provided with a spring body part (13), the right lower side of the spring body part (13) is provided with a sealing plug (14), and the left lower side of a spring tube (15) is connected with a pressure gauge joint (16).

2. A pressure thermometer according to claim 1 wherein: the pressure gauge shell (1) is composed of a nylon nut (2), a lower shell (3) and an upper shell (4), and the nylon nut (2) is connected with a thermal bulb component (5) through a capillary tube (20).

3. A pressure thermometer according to claim 1 wherein: the upper end of the bulb warming component (5) is connected with a bulb warming conduit connecting seat (17), and the bulb warming conduit connecting seat (17) is composed of a fixing nut (18) and a connecting nut (19).

4. A pressure thermometer according to claim 1 wherein: spring body part (13) is the zigzag structure of being made by the metal material, and installs the fixed orifices on spring body part (13), and spring body part (13) middle part is the arc setting simultaneously.

5. A pressure thermometer according to claim 1 wherein: the upper end of the sealing plug (14) is fixedly connected in a hole groove formed in the spring tube (15).

6. A pressure thermometer according to claim 1 wherein: the spring tube (15) is arranged in a C shape in the pressure gauge shell (1), and the section of the spring tube (15) is oval.

7. A pressure thermometer according to claim 1 wherein: the cross sections of the fixing nut (18) and the connecting nut (19) are both regular hexagon structures, and the length of the connecting nut (19) is smaller than that of the fixing nut (18).

8. A pressure thermometer according to claim 1 wherein: the connecting nut (19) is internally provided with a red copper pad (6), and the red copper pad (6) is arranged between the fixing nut (18) and the connecting nut (19).