High-temperature thermocouple calibration device

Abstract

The utility model relates to a high-temperature thermocouple calibration device which comprises a high-temperature verification furnace. An isothermal heating body is arranged in the high-temperature verification furnace, and the high-temperature verification furnace is provided with a furnace door; a track is arranged on the outer side of the high-temperature verification furnace; a constant-temperature block supporting table is arranged on the track; the furnace door is provided with a matching notch relative to the constant-temperature block supporting table; the constant-temperature block supporting table is connected with the driving end; and a sealing structure matched with the furnace door is arranged on the constant-temperature block supporting table. The mode that the constant-temperature block supporting table is combined with the furnace door matching notch is adopted to replace the mode that a guide rail extends into the high-temperature verification furnace in the prior art, the laying length of the guide rail is greatly shortened, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to a calibration device, in particular to a high-temperature thermocouple calibration device, and belongs to the technical field of thermocouple calibration devices. Background Art

[0002] In the existing thermocouple calibration process, the thermostatic block and the thermocouple plugged into the thermostatic block need to be sent to the high-temperature calibration furnace through a specific track; therefore, the track needs to extend into the high-temperature calibration furnace, but there will be a gap between the track and the furnace door, resulting in heat loss, which poses a great challenge to the sealing ability. In addition, the track in the high-temperature calibration furnace has extremely high heat resistance requirements due to frequent exposure to extremely high temperatures, and the cost of a long guide rail is extremely expensive. Therefore, further improvements are needed. Utility Model Content

[0003] The purpose of the utility model is to solve the above-mentioned shortcomings and provide a high-temperature thermocouple calibration device, which reduces production costs, improves thermal insulation effects, and has a simple and reasonable structure.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A high-temperature thermocouple calibration device comprises a high-temperature calibration furnace; an isothermal heating element is arranged inside the high-temperature calibration furnace, and the high-temperature calibration furnace has a furnace door; a track is arranged on the outer side of the high-temperature calibration furnace; a constant temperature block support is arranged on the track; a matching notch is arranged on the furnace door relative to the constant temperature block support; the constant temperature block support is connected to the driving end; and a sealing structure matching the furnace door is arranged on the constant temperature block support.

[0006] Furthermore, the thermostatic block support has a seat body and a slider; the seat body is arranged on the surface of the slider; the slider is slidably connected to the track; the length of the seat body is longer than the length of the slider.

[0007] Furthermore, the furnace door is a lifting door; the width of the matching gap is equal to the width of the seat body; and the sealing structure includes a first mechanical sealing mechanism and a second mechanical sealing mechanism.

[0008] Furthermore, a groove is provided on the surface of the seat body; the first mechanical sealing mechanism comprises a pressing block elastically arranged in the groove body; and an L-shaped groove communicating with the groove body is arranged in the seat body.

[0009] Furthermore, the L first mechanical sealing mechanism also includes an L-shaped block; the L-shaped block is provided with a vertical wall relative to the pressing block; the bottom of the pressing block is wedge-shaped; the bottom of the pressing block is in contact with or separated from the inner side of the vertical wall; the L-shaped block is elastically connected to the L-shaped groove.

[0010] Furthermore, the vertical wall of the L-shaped block is in close contact with or separated from the inner wall of the furnace door.

[0011] Furthermore, a hole is provided on the upper side of the pressing block; the second mechanical sealing mechanism includes a translation block elastically arranged in the hole; a plug is provided at the bottom of the pressing block relative to the hole; the inner side of the translation block is wedge-shaped; the outer side of the translation block contacts or separates from the side wall of the matching notch.

[0012] The utility model has the following beneficial effects: the thermostatic block support platform is combined with the matching notch of the furnace door, replacing the existing method of extending the guide rail into the high-temperature calibration furnace, greatly shortening the laying length of the guide rail and reducing costs; at the same time, the thermostatic block support platform and the matching notch are sealed with the first mechanical sealing mechanism and the second mechanical sealing mechanism, effectively preventing internal heat loss, improving safety and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the track and the driving end in the utility model.

[0014] Figure 2 A schematic diagram of the structure of the notch and the constant temperature block support.

[0015] Figure 3 It is a structural schematic diagram of the first mechanical sealing mechanism.

[0016] In the figure: 1 is the furnace door, 2 is the track, 3 is the constant temperature block support, 4 is the matching notch, 41 is the seat body, 411 is the slot body, 42 is the slider, 5 is the driving end, 6 is the pressing block, 61 is the hole position, 7 is the L-shaped block, 71 is the vertical wall, 8 is the translation block, and 9 is the plug column. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] The terms used herein, including technical and scientific terms, have the same meaning as those generally understood by those skilled in the art, unless the terms are defined differently. It should be understood that the terms defined in commonly used dictionaries have the same meaning as those in the prior art.

[0019] See also Figure 1-Figure 3

[0020] A high-temperature thermocouple calibration device comprises a high-temperature calibration furnace; an isothermal heating element is arranged inside the high-temperature calibration furnace, and the high-temperature calibration furnace has a furnace door 1; a track 2 is arranged on the outer side of the high-temperature calibration furnace; a constant temperature block support 3 is arranged on the track 2; the furnace door 1 is provided with a matching notch 4 relative to the constant temperature block support 3; the constant temperature block support 3 is connected to the driving end 5; and a sealing structure matching with the furnace door 1 is arranged on the constant temperature block support 3.

[0021] Furthermore, the thermostatic block support 3 has a seat 41 and a slider 42 ; the seat 41 is arranged on the surface of the slider 42 ; the slider 42 is slidably connected to the track 2 ; the length of the seat 41 is longer than the length of the slider 42 .

[0022] Specifically, after the seat body 41 enters the high-temperature calibration furnace, the furnace door 2 is closed downward; during the closing process of the furnace door 2, it will contact the sealing structure on the seat body 41 and achieve sealing.

[0023] Furthermore, the furnace door 2 is a lifting door; the width of the matching notch 4 is equal to the width of the seat body 41; and the sealing structure includes a first mechanical sealing mechanism and a second mechanical sealing mechanism.

[0024] Furthermore, a groove 411 is provided on the surface of the seat body 41 ; the first mechanical sealing mechanism comprises a pressing block 6 elastically arranged in the groove 411 ; and an L-shaped groove communicating with the groove 411 is arranged in the seat body 41 .

[0025] Furthermore, the first mechanical sealing mechanism also includes an L-shaped block 7; the L-shaped block 7 is provided with a vertical wall 71 relative to the pressing block 6; the bottom of the pressing block 6 is wedge-shaped; the bottom of the pressing block 6 is in contact with or separated from the inner side of the vertical wall 71; the L-shaped block 7 is elastically connected to the L-shaped groove.

[0026] Furthermore, the vertical wall of the L-shaped block 7 is in close contact with or separated from the inner wall of the furnace door 1 .

[0027] When the furnace door 1 descends, it will push the pressing block 6 on the surface of the seat body 41 to descend together; during the descending process, the pressing block 6 will abut against the vertical wall 71 of the L-shaped block 7, causing it to move forward, so that the vertical wall of the L-shaped block 7 can fit tightly against the inner wall of the furnace door 2, thereby realizing a mechanical seal between the surface of the seat body 41 and the furnace door.

[0028] Furthermore, a hole 61 is provided on the upper side of the pressing block 6; the second mechanical sealing mechanism includes a translation block 8 elastically arranged in the hole 61; a plug post 9 is provided at the bottom of the pressing block 6 relative to the hole; the inner side of the translation block 8 is wedge-shaped; the outer side of the translation block 8 is in contact with or separated from the side wall of the matching notch.

[0029] When the pressing block 6 descends, the plug post 9 enters the hole 61 and abuts against the translation block 8, so that the translation block 8 moves outward, thereby achieving a mechanical seal between the side of the seat body 41 and the furnace door 1.

[0030] Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the utility model rather than limiting it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A high-temperature thermocouple calibration device, comprising a high-temperature calibration furnace; an isothermal heating element is arranged in the high-temperature calibration furnace, characterized in that: The high-temperature calibration furnace has a furnace door; a track is arranged on the outer side of the high-temperature calibration furnace; a constant temperature block support is arranged on the track; a matching notch is arranged on the furnace door relative to the constant temperature block support; the constant temperature block support is connected to the driving end; and a sealing structure matching the furnace door is arranged on the constant temperature block support.

2. The high temperature thermocouple calibration device according to claim 1, characterized in that: The constant temperature block support platform comprises a seat body and a slider; the seat body is arranged on the surface of the slider; the slider is slidably connected to the track; the length of the seat body is longer than the length of the slider.

3. The high temperature thermocouple calibration device according to claim 2, characterized in that: The furnace door is a lifting door; the width of the matching notch is equal to the width of the seat body; and the sealing structure includes a first mechanical sealing mechanism and a second mechanical sealing mechanism.

4. The high temperature thermocouple calibration device according to claim 3, characterized in that: A groove is provided on the surface of the seat body; the first mechanical sealing mechanism comprises a pressing block elastically arranged in the groove body; and an L-shaped groove communicating with the groove body is arranged in the seat body.

5. The high temperature thermocouple calibration device according to claim 4, characterized in that: The first mechanical sealing mechanism also includes an L-shaped block; the L-shaped block is provided with a vertical wall relative to the pressing block; the bottom of the pressing block is wedge-shaped; the bottom of the pressing block is in contact with or separated from the inner side of the vertical wall; the L-shaped block is elastically connected to the L-shaped groove.

6. The high temperature thermocouple calibration device according to claim 5, characterized in that: The vertical wall of the L-shaped block is in close contact with or separated from the inner wall of the furnace door.

7. The high temperature thermocouple calibration device according to claim 6, characterized in that: A hole is provided on the upper side of the pressing block; the second mechanical sealing mechanism includes a translation block elastically arranged in the hole; a plug is provided at the bottom of the pressing block relative to the hole; the inner side of the translation block is wedge-shaped; the outer side of the translation block contacts or separates from the side wall of the matching notch.

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