Dry body furnace for temperature instrument calibration
By introducing a heat insulation cover assembly and a servo motor drive system into the dry block furnace, the temperature instruments can be easily removed and the heating uniformity can be improved. This solves the problem of difficult instrument removal in existing dry block furnaces and improves calibration efficiency and safety.
Patent Information
- Application Number
- CN202520461370.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Existing dry block furnaces used for temperature instrument calibration make it difficult to remove the instruments after high-temperature heating, which is time-consuming, labor-intensive, and prone to damage, affecting the efficiency and safety of calibration work.
A temperature instrument calibration device was designed, which includes a dry block furnace assembly and a heat insulation cover assembly. The dry block furnace assembly is sealed and insulated by the heat insulation cover assembly, and the instrument is easily removed by a lifting cylinder and a servo motor. The rotation of the temperature instrument frame driven by the servo motor is combined to improve the heating uniformity.
It enables convenient removal of instruments, reduces the risk of damage, improves calibration efficiency and safety, and solves the problem of difficult instrument removal after high-temperature heating.
Smart Images

Figure CN223840917U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of temperature instrument calibration technology, and specifically relates to a dry block furnace for temperature instrument calibration. Background Technology
[0002] In the field of temperature instrument calibration, the dry block furnace is a key piece of equipment. It provides a stable and accurate temperature environment for temperature instruments by precisely controlling the temperature of its internal cavity, thereby enabling the calibration of various temperature instruments.
[0003] After the dry block furnace completes high-temperature heating for instrument calibration, the instrument removal process becomes extremely difficult. Due to the high-temperature operation inside the dry block furnace, the instrument and the furnace's internal structure form a tight bond, possibly due to thermal expansion or physical adhesion caused by the high temperature. This requires a significant amount of time and effort from staff to remove the instrument after calibration. During this process, staff must be careful to avoid damaging the instrument due to improper force and also be aware of the risk of burns from residual high temperatures. Frequent and laborious instrument removal not only reduces the efficiency of the calibration work but also increases the probability of instrument damage, leading to higher calibration costs and hindering the smooth and efficient execution of temperature instrument calibration.
[0004] Therefore, in view of the existing dry block furnaces used for temperature instrument calibration, which are difficult to remove instruments after high-temperature heating, resulting in time-consuming, labor-intensive, and easily damaged instrument removal after temperature calibration, a dry block furnace for temperature instrument calibration can be designed. Utility Model Content
[0005] To overcome the problem that existing dry block furnaces used for temperature instrument calibration are difficult to remove after high-temperature heating, resulting in time-consuming, labor-intensive, and easily damaged instrument removal after temperature calibration.
[0006] The technical solution of this utility model is as follows: a dry block furnace for temperature instrument calibration, including a dry block furnace assembly and a heat insulation cover assembly; the heat insulation cover assembly is arranged above the dry block furnace assembly, and the heat insulation cover assembly is fixedly connected to an external clamp; the dry block furnace assembly includes a dry furnace, a temperature instrument frame, a heat insulation platform, a servo motor, a lifting cylinder, a positioning pin, a positioning slot, and a temperature sensor; the heat insulation cover assembly includes a heat insulation furnace cover, a pin hole, and a positioning plug.
[0007] Preferably, the dry block furnace assembly is sealed and insulated by a hood-type heat insulation hood assembly, and then the lifting cylinder drives the heat insulation platform and the upper structure to lift and lower to achieve the separation function from the heat insulation hood assembly. This allows the instruments placed in the temperature instrument rack to be easily and conveniently removed, solving the problem of existing dry block furnaces used for temperature instrument calibration, where the instruments are difficult to remove after high-temperature heating, resulting in time-consuming, labor-intensive, and easily damaged removal after temperature calibration.
[0008] Preferably, a heat insulation platform is fixedly installed at the lower end of the dry furnace; lifting cylinders are installed at the four corners of the lower end of the heat insulation platform, and the lifting cylinders drive the heat insulation platform to lift and lower; a temperature instrument frame is installed at the upper end of the dry furnace; a servo motor is installed at the center of the lower end face of the heat insulation platform, and the servo motor drives the temperature instrument frame to rotate.
[0009] Preferably, the dry furnace is provided with positioning pins on both sides, and the positioning pins are fixedly connected to the heat insulation platform; a positioning slot is provided on one side of the positioning pin, and the positioning slot is fixedly connected to the heat insulation platform.
[0010] Preferably, temperature sensors are installed at both the front and rear ends of the dry furnace.
[0011] Preferably, an insulated furnace cover is provided above the temperature instrument frame; the insulated furnace cover has pin holes on both sides, and the pin holes are integrally formed with the insulated furnace cover.
[0012] Preferably, the internal connection is configured with the locating pin inserted into the pin hole.
[0013] Preferably, a positioning plug is provided on one side of each pin hole, and the positioning plug is inserted into the positioning slot.
[0014] The beneficial effects of this utility model are:
[0015] 1. Existing dry-block furnaces used for temperature instrument calibration suffer from the problem of difficult instrument removal after high-temperature heating, resulting in time-consuming, labor-intensive, and easily damaged instrument removal after temperature calibration. This problem is solved by using a hood-type insulation hood assembly to seal and insulate the dry-block furnace assembly, and then using a lifting cylinder to lift the heat-insulating platform and the upper structure to achieve separation from the insulation hood assembly. This allows the instruments placed in the temperature instrument rack to be easily and conveniently removed.
[0016] 2. By setting up a servo motor and a temperature instrument rack, the servo motor drives the temperature instrument rack to rotate, thereby ensuring that the temperature instruments placed inside the temperature instrument rack are heated evenly, thus improving the heating uniformity. Attached Figure Description
[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the dry block furnace for temperature instrument calibration according to this utility model.
[0018] Figure 2 The diagram shown is a bottom-view perspective of the overall structure of the dry block furnace for temperature instrument calibration according to this utility model.
[0019] Figure 3 The diagram shown is a three-dimensional structural schematic of the heat insulation cover assembly of the dry block furnace for temperature instrument calibration according to this utility model.
[0020] Figure 4 The diagram shown is a three-dimensional structural schematic of the dry block furnace component of the dry block furnace for temperature instrument calibration according to this utility model.
[0021] The labels in the attached diagram are as follows: 1. Dry furnace assembly; 2. Insulation cover assembly; 101. Dry furnace; 102. Temperature instrument frame; 103. Insulation platform; 104. Servo motor; 105. Lifting cylinder; 106. Positioning pin; 107. Positioning slot; 108. Temperature sensor; 201. Insulation furnace cover; 202. Pin hole; 203. Positioning plug. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0023] Please see Figure 1-4 The present invention provides an embodiment of a dry-body furnace for calibrating temperature instruments, comprising a dry-body furnace assembly 1 and a heat insulation cover assembly 2; the heat insulation cover assembly 2 is disposed above the dry-body furnace assembly 1 and is fixedly connected to an external clamp; the dry-body furnace assembly 1 includes a dry furnace 101, a temperature instrument frame 102, a heat insulation platform 103, a servo motor 104, a lifting cylinder 105, a positioning pin 106, a positioning slot 107, and a temperature sensor 108; the heat insulation cover assembly 2 includes a heat insulation furnace cover 201, a pin hole 202, and a positioning plug 203.
[0024] Please see Figure 1-4In this embodiment, a heat insulation platform 103 is fixedly installed at the lower end of the dry furnace 101; lifting cylinders 105 are installed at the four corners of the lower end of the heat insulation platform 103, and the lifting cylinders 105 drive the heat insulation platform 103 to lift and lower; a temperature instrument frame 102 is installed at the upper end of the dry furnace 101; a servo motor 104 is installed at the center of the lower end face of the heat insulation platform 103, and the servo motor 104 drives the temperature instrument frame 102 to rotate; positioning pins 106 are installed on both sides of the dry furnace 101, and the positioning pins 106 are fixedly connected to the heat insulation platform 103; the positioning pins 106 A positioning slot 107 is provided on one side of the dry furnace 101, and the positioning slot 107 is fixedly connected to the heat insulation platform 103; temperature sensors 108 are provided at both the front and rear ends of the dry furnace 101; a heat-insulating furnace cover 201 is provided above the temperature instrument frame 102; pin holes 202 are provided on both sides of the heat-insulating furnace cover 201, and the pin holes 202 are integrally formed with the heat-insulating furnace cover 201; positioning pins 106 are inserted into the pin holes 202 for internal connection; a positioning plug 203 is provided on one side of each pin hole 202, and the positioning plug 203 is inserted into the positioning slot 107.
[0025] During operation, the dry block furnace assembly 1 is sealed and insulated by the heat-insulating cover assembly 2, and then the lifting cylinder 105 drives the heat insulation platform 103 and the upper structure to lift and lower to achieve the separation function from the heat-insulating cover assembly 2. This allows the instruments placed in the temperature instrument rack 102 to be easily and conveniently removed. This solves the problem of existing dry block furnaces used for temperature instrument calibration, where it is difficult to remove the instruments after high-temperature heating, resulting in time-consuming, laborious, and easily damaged instrument removal after temperature calibration.
[0026] Next, the servo motor 104 drives the temperature instrument holder 102 to rotate, so that the temperature instrument placed in the temperature instrument holder 102 can be heated evenly, thereby improving the heating uniformity.
[0027] Through the above steps, the dry block furnace assembly 1 is sealed and insulated by the heat-insulating cover assembly 2, and then the lifting cylinder 105 drives the heat insulation platform 103 and the upper structure to lift and lower to achieve the separation function from the heat-insulating cover assembly 2. This allows the instruments placed in the temperature instrument rack 102 to be easily and conveniently removed, avoiding the problem of existing dry block furnaces used for temperature instrument calibration, where the instruments are difficult to remove after high-temperature heating, resulting in time-consuming, laborious, and easily damaged removal after temperature calibration.
Claims
1. A dry block furnace for calibrating temperature instruments, comprising a dry block furnace assembly (1), characterized in that: It also includes a heat insulation cover assembly (2); the heat insulation cover assembly (2) is provided above the dry body furnace assembly (1), and the heat insulation cover assembly (2) is fixedly connected to the external clamp; the dry body furnace assembly (1) includes a dry furnace (101), a temperature instrument frame (102), a heat insulation platform (103), a servo motor (104), a lifting cylinder (105), a positioning pin (106), a positioning slot (107), and a temperature sensor (108); the heat insulation cover assembly (2) includes a heat insulation furnace cover (201), a pin hole (202), and a positioning plug (203).
2. The dry block furnace for temperature instrument calibration according to claim 1, characterized in that: A heat insulation platform (103) is fixedly installed at the lower end of the dry furnace (101); a lifting cylinder (105) is installed at each of the four corners of the lower end of the heat insulation platform (103), and the lifting cylinder (105) drives the heat insulation platform (103) to lift and move; a temperature instrument frame (102) is installed at the upper end of the dry furnace (101); a servo motor (104) is installed at the center of the lower end face of the heat insulation platform (103), and the servo motor (104) drives the temperature instrument frame (102) to rotate.
3. The dry block furnace for temperature instrument calibration according to claim 1, characterized in that: The dry furnace (101) is provided with positioning pins (106) on both sides, and the positioning pins (106) are fixedly connected to the heat insulation platform (103); a positioning slot (107) is provided on one side of the positioning pin (106), and the positioning slot (107) is fixedly connected to the heat insulation platform (103).
4. The dry block furnace for temperature instrument calibration according to claim 1, characterized in that: Temperature sensors (108) are installed at both the front and rear ends of the dry furnace (101).
5. The dry block furnace for temperature instrument calibration according to claim 2, characterized in that: A heat preservation furnace cover (201) is provided above the temperature instrument frame (102); both sides of the heat preservation furnace cover (201) are provided with pin holes (202), and the pin holes (202) are integrally formed with the heat preservation furnace cover (201).
6. The dry block furnace for temperature instrument calibration according to claim 3, characterized in that: The internal connection setting of the locating pin (106) being inserted into the pin hole (202) is provided.
7. The dry block furnace for temperature instrument calibration according to claim 1, characterized in that: Each pin hole (202) has a positioning plug (203) on one side, and the positioning plug (203) is inserted into the positioning slot (107).