CN214748490U

CN214748490U - Change furnace thermometer portable device

Info

Publication number: CN214748490U
Application number: CN202121096023.9U
Authority: CN
Inventors: 常俊斌; 姚维维; 刘加丰
Original assignee: Shanxi Tianze Cola Chemical Industry Group Co ltd
Current assignee: Shanxi Tianze Cola Chemical Industry Group Co ltd
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2021-11-16
Anticipated expiration: 2031-05-14

Abstract

The utility model discloses a change furnace thermometer portable device, including the thermocouple cold junction, there are locking mechanism, cutting ferrule and fixed establishment thermocouple cold junction one side, and fixed establishment is the fixed pipe of thermocouple cold junction afterbody fixedly connected with, and fixed outer wall of the tube rotates and is connected with second hexagon nut, and second hexagon nut keeps away from thermocouple cold junction one side fixedly connected with second external thread joint second hexagon nut and rotates and be connected with the second cutting ferrule near one side of thermocouple cold junction. The utility model discloses a fixed establishment who sets up, the inconvenience of involving in multiple special operations such as interim power consumption, dynamic fire, illumination when having avoided traditional technique to change in the confined space, instrument maintainer changes the efficiency of furnace thermocouple when having greatly made things convenient for boiler maintenance, reduce intensity of labour, through the adiabatic piece that sets up, the interval between protective case and the wall that prevents the thermocouple does not fill out adiabatic material and causes the stove internal heat to spill over or the cold air invades, lead to cold and hot air convection and influence the accuracy of temperature measurement.

Description

Change furnace thermometer portable device

Technical Field

The utility model relates to a boiler thermometer technical field especially relates to a change furnace thermometer portable device.

Background

At present, the temperature of a hearth of a coal-fired and three-waste boiler is measured by a fixed thermocouple conventionally, the normal working temperature of the boiler hearth is about 1000 ℃, and the pulverized coal in the circulating fluidized bed boiler hearth is in a boiling state, so that the thermocouple of the hearth is in a high-temperature wear environment for a long time, is easy to deform and damage, and once a protective sleeve at the front end of the thermocouple is bent and deformed, the protective sleeve can be burnt out quickly, influences are caused to a production system, and even the boiler can be shut down for treatment in serious cases.

The traditional replacement method needs at least two or three persons to collaborate to cut off the bent part of the thermocouple in the hearth, and then the damaged thermocouple sleeve can be replaced after the damaged thermocouple sleeve is knocked out a little by a canadian hammer in the hearth. Because the hardness of the outer sleeve of the wear-resistant and high-temperature-resistant thermocouple is extremely high, long operation time is usually needed for cutting off only the bent part, multiple special operations such as temporary electricity utilization, dynamic fire, illumination and the like are involved in a limited space, and the implementation of safety measures in preparation work and an operation process is extremely complicated. Therefore, a convenient device for replacing the furnace thermometer is needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a convenient device for replacing a furnace thermometer.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a change furnace thermometer portable device, includes the thermocouple cold junction, there are locking mechanism, cutting ferrule and fixed establishment thermocouple cold junction one side, and fixed establishment is the fixed pipe of thermocouple cold junction afterbody fixedly connected with, and fixed tub of outer wall rotates and is connected with second hexagon nut, and second hexagon nut keeps away from thermocouple cold junction one side fixedly connected with second external thread joint second hexagon nut and rotates and be connected with the second cutting ferrule near one side of thermocouple cold junction.

Preferably, locking mechanism is the first hexagon nut of thermocouple cold junction outer wall fixedly connected with, and first hexagon nut is close to the first screwed joint of one side fixedly connected with of fixed pipe, and first screwed joint is close to the first cutting ferrule of one side fixedly connected with of fixed pipe.

Preferably, fixedly connected with connecting pipe between first external screwed joint and the first cutting ferrule, the pressing groove has been seted up to the connecting pipe inside, pressing inslot wall both sides and having seted up first spacing groove, first spacing inslot wall sliding connection has first slider, handle is pressed to first slider top fixedly connected with, pressing inslot wall both sides and having seted up the second spacing groove, second spacing inslot wall sliding connection has the second slider, second slider bottom is provided with two archs, the same spring of first slider bottom and second slider top fixedly connected with.

Preferably, the inner axis of the connecting pipe is a cavity, the cold end of the thermocouple extends into the cavity, two groups of grooves are formed in the outer wall of the tail of the cold end of the thermocouple, and the grooves are matched with the protrusions at the bottom of the second sliding block.

Preferably, thermocouple cold junction outer wall fixedly connected with second flange, the first flange of one side fixedly connected with of second flange near fixed pipe, one side fixedly connected with furnace wall that first flange is close to fixed pipe, furnace wall inner wall fixedly connected with installation sleeve pipe.

Preferably, one side of the second flange, which is far away from the fixed pipe, is fixedly connected with a thermocouple working end.

Preferably, a heat insulation block is fixedly arranged between the cold end of the thermocouple and the mounting sleeve, and the heat insulation block is made of refractory mortar or asbestos ropes.

The utility model has the advantages that:

1. through the arranged fixing mechanism, the inconvenience of multiple special operations such as temporary electricity utilization, fire driving, illumination and the like in a limited space during replacement in the traditional technology is avoided, the preparation work is saved, the implementation of extremely complicated safety measures in the operation process is simplified, the efficiency of replacing a hearth thermocouple by an instrument maintainer during boiler maintenance is greatly facilitated, the labor intensity is reduced, and the intrinsic safety of maintenance operation is improved to a certain extent;

2. through the arranged pressing groove, the pressing handle is pinched during use of the thermometer, the cold end of the thermocouple is inserted into a proper position in the connecting pipe, and then the bulge at the bottom of the second sliding block is matched with the groove on the outer wall of the cold end of the thermocouple, so that the thermocouple is tightly occluded with the locking mechanism, the clamping sleeve and the fixing mechanism, and the fixing stability of the device is further improved;

3. through the arranged heat insulation block and the fire clay or asbestos rope material used by the heat insulation block, the phenomenon that the interval between the protection sleeve of the thermocouple and the wall is not filled with heat insulation materials to cause heat overflow or cold air invasion in the furnace, so that the cold and hot air convection influences the accuracy of temperature measurement is prevented.

Drawings

FIG. 1 is a schematic cross-sectional view of a portable device for replacing a furnace thermometer in accordance with embodiment 1 before locking;

FIG. 2 is a schematic cross-sectional view of the locked portable device for replacing a furnace thermometer in embodiment 1;

FIG. 3 is a schematic partial perspective view of a portable device for replacing a furnace thermometer in accordance with example 1;

FIG. 4 is a schematic partial sectional view of a portable device for replacing a furnace thermometer in accordance with example 1;

fig. 5 is a schematic cross-sectional structure view of a convenient device for replacing a furnace thermometer provided in embodiment 2.

In the drawings: 1. a furnace wall; 2. installing a sleeve; 3. a first flange; 4. a second flange; 5. a thermocouple working end; 6. a cold end of the thermocouple; 7. a first hexagonal nut; 8. a first male connection; 9. a first ferrule; 10. a second ferrule; 11. a second hexagonal nut; 12. a second external threaded joint; 13. a fixed tube; 14. a connecting pipe; 15. a first limit groove; 16. a first slider; 17. a spring; 18. a second limit groove; 19. a second slider; 20. a groove; 21. a protrusion; 22. pressing the handle; 23. a heat insulating block; 24. and pressing the groove.

Detailed Description

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-4, a change furnace thermometer portable device, including thermocouple cold junction 6, there are locking mechanism, cutting ferrule and fixed establishment thermocouple cold junction 6 one side, and fixed establishment is the fixed pipe 13 of 6 afterbody fixedly connected with in thermocouple cold junction, and fixed pipe 13 outer wall rotates and is connected with second hexagon nut 11, and second hexagon nut 11 keeps away from thermocouple cold junction 6 one side fixedly connected with second external thread joint 12 second hexagon nut 11 and rotates and is connected with second cutting ferrule 10 near one side of thermocouple cold junction 6.

Meanwhile, the locking mechanism is that a first hexagonal nut 7 is fixedly connected to the outer wall of the thermocouple cold end 6, a first external thread joint 8 is fixedly connected to one side of the first hexagonal nut 7 close to the fixed tube 13, a first cutting ferrule 9 is fixedly connected to one side of the first external thread joint 8 close to the fixed tube 13, a connecting tube 14 is fixedly connected between the first external thread joint 8 and the first cutting ferrule 9, a pressing groove 24 is formed in the connecting tube 14, first limiting grooves 15 are formed in two sides of the inner wall of the pressing groove 24, a first slider 16 is slidably connected to the inner wall of the first limiting groove 15, a pressing handle 22 is fixedly connected to the top of the first slider 16, second limiting grooves 18 are formed in two sides of the inner wall of the pressing groove 24, a second slider 19 is slidably connected to the inner wall of the second limiting groove 18, two bulges 21 are arranged at the bottom of the second slider 19, and the same spring 17 is fixedly connected to the bottom of the first slider 16 and the top of the

second slider

19, 14 inside axis departments of connecting pipe are the cavity, 6 stretch into in the cavity of thermocouple cold junction, two sets of recesses 20 have been seted up to 6 afterbody outer walls of thermocouple cold junction, recess 20 cooperatees with the arch 21 of 19 bottoms of second slider, 6 outer wall fixedly connected with second flange 4 of thermocouple cold junction, second flange 4 is close to the first flange 3 of one side fixedly connected with of fixed pipe 13, first flange 3 is close to one side fixedly connected with furnace wall 1 of fixed pipe 13, 1 inner wall fixedly connected with installation sleeve 2 of furnace wall, one side fixedly connected with thermocouple work end 5 of fixed pipe 13 is kept away from to second flange 4.

The working principle is as follows: when the thermocouple fixing device is used, the movable fixing mechanism is firstly installed on a temperature measuring point installing sleeve 2 pre-embedded in a boiler furnace wall 1, a pressing handle 22 is pinched, the length of a thermocouple inserted into a furnace is adjusted according to actual conditions, the pressing handle 22 is loosened, a bulge 21 in a connecting pipe 14 is matched and clamped with a groove 20 in the tail portion of a thermocouple cold end 6, a second clamping sleeve 10 is pressed inwards to enable the second clamping sleeve 10 to be fastened with a first clamping sleeve 9, then a second external thread connector 12 is screwed into a first external thread connector 8, a locking mechanism is locked, if the thermocouple needs to be replaced, an operator needs to disassemble a thermocouple junction box, unscrew the second external thread connector 12 from the first external thread connector 8, press the second clamping sleeve 10 to enable the second clamping sleeve 10 to be disengaged from the first clamping sleeve 9, and knock the thermocouple installing sleeve 2 into the furnace from the outside of the furnace wall 1.

Example 2

Referring to fig. 5, in the present embodiment, compared with embodiment 1, a thermal insulation block 23 is fixedly disposed between a cold end 6 of a thermocouple and an installation sleeve 2, and the thermal insulation block 23 is made of refractory mortar or asbestos rope.

The working principle is as follows: when in use, the movable fixing mechanism is firstly arranged on a temperature measuring point mounting sleeve 2 pre-embedded in a boiler furnace wall 1, a pressing handle 22 is held, after the length of a thermocouple inserted into a furnace is adjusted according to actual conditions, the pressing handle 22 is loosened, a bulge 21 in a connecting pipe 14 is matched and clamped with a groove 20 at the tail part of a thermocouple cold end 6, a second cutting sleeve 10 is pressed inwards to enable the second cutting sleeve 10 to be fastened with a first cutting sleeve 9, then a second external thread joint 12 is screwed into a first external thread joint 8, a locking mechanism is locked, meanwhile, an insulating block 23 is arranged to prevent the interval between the mounting sleeve 2 and the wall of the thermocouple from being filled with insulating substances to cause the overflow of heat in the furnace or the intrusion of cold air, so that the convection of the cold and hot air affects the accuracy of temperature measurement, if the thermocouple needs to be replaced, an operator needs to disassemble a thermocouple junction box, and unscrew the second external thread joint 12 from the first external thread joint 8, and pressing the second clamping sleeve 10 to enable the second clamping sleeve 10 and the first clamping sleeve 9 to be disengaged, and knocking the thermocouple mounting sleeve 2 into the hearth from the outside of the hearth wall 1.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a change furnace thermometer portable device, including thermocouple cold junction (6), there is locking mechanism thermocouple cold junction (6) one side, cutting ferrule and fixed establishment, a serial communication port, fixed establishment is the fixed pipe (13) of thermocouple cold junction (6) afterbody fixedly connected with, fixed pipe (13) outer wall rotates and is connected with second hexagon nut (11), one side that thermocouple cold junction (6) one side fixedly connected with second external thread joint (12) second hexagon nut (11) are close to thermocouple cold junction (6) is kept away from in second hexagon nut (11) is rotated and is connected with second cutting ferrule (10).

2. The convenient device for replacing the furnace thermometer according to claim 1, wherein the locking mechanism is a first hexagon nut (7) fixedly connected to the outer wall of the cold end (6) of the thermocouple, a first male connector (8) is fixedly connected to one side of the first hexagon nut (7) close to the fixed tube (13), and a first ferrule (9) is fixedly connected to one side of the first male connector (8) close to the fixed tube (13).

3. The convenient device for replacing the furnace thermometer according to claim 2, characterized in that a connecting pipe (14) is fixedly connected between the first male connector (8) and the first sleeve (9), a pressing groove (24) is formed inside the connecting pipe (14), first limiting grooves (15) are formed on two sides of the inner wall of the pressing groove (24), a first slider (16) is slidably connected to the inner wall of the first limiting groove (15), a pressing handle (22) is fixedly connected to the top of the first slider (16), second limiting grooves (18) are formed on two sides of the inner wall of the pressing groove (24), a second slider (19) is slidably connected to the inner wall of the second limiting groove (18), two protrusions (21) are arranged at the bottom of the second slider (19), and the same spring (17) is fixedly connected to the bottom of the first slider (16) and the top of the second slider (19).

4. The convenient device for replacing the furnace thermometer according to claim 1, characterized in that the inner axis of the connecting pipe (14) is a cavity, the cold end (6) of the thermocouple extends into the cavity, two sets of grooves (20) are formed on the outer wall of the tail part of the cold end (6) of the thermocouple, and the grooves (20) are matched with the protrusions (21) at the bottom of the second sliding block (19).

5. A convenient device for replacing a hearth thermometer according to claim 1, characterized in that a second flange (4) is fixedly connected to the outer wall of the cold end (6) of the thermocouple, a first flange (3) is fixedly connected to one side of the second flange (4) close to the fixed pipe (13), a hearth wall (1) is fixedly connected to one side of the first flange (3) close to the fixed pipe (13), and a mounting sleeve (2) is fixedly connected to the inner wall of the hearth wall (1).

6. A convenient device for replacing a hearth thermometer according to claim 5, characterized in that a thermocouple working end (5) is fixedly connected to the side of the second flange (4) far away from the fixed pipe (13).

7. The convenient device for replacing the furnace thermometer is characterized in that a heat-insulating block (23) is fixedly arranged between the cold end (6) of the thermocouple and the mounting sleeve (2), and the heat-insulating block (23) is made of refractory mortar or asbestos ropes.