Temperature calibration device for ultra-long contact type thermodetector

Abstract

The utility model relates to an ultra-long contact type thermodetector temperature calibration device, which comprises a box body (1), a compressor (2), a condenser (3), an air circulation system (4), a liquid crystal screen (5) and a control module (6), the top of the box body is provided with at least one test hole (8) in which a contact type thermodetector (11) is inserted, and the side wall of the box body (1) is provided with the liquid crystal screen (5). A compressor (2), a condenser (3), an air circulation system (4) and a control module (6) which are arranged on the lower portion of the box body are installed in an inner cavity of the box body (1), the compressor (2) is connected with the condenser, the control module (6) is electrically connected with the liquid crystal screen (5) through a communication line, and the control module (6) is electrically connected with the air circulation system (4) and the compressor (2) through communication lines. The air circulation system is arranged on the upper side of the control module. And the calibration precision of the contact type thermodetector is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to temperature calibration equipment field especially relates to a super long contact type temperature measuring instrument temperature calibration device. BACKGROUND

[0002] Contact temperature measuring instrument is a kind of instrument that measures temperature by directly contacting the surface or interior of the measured object with temperature measuring probe. It is different from infrared temperature measuring instrument, mainly measures temperature by reaching thermal equilibrium state between sensor and object. The working principle of contact temperature measuring instrument is to directly contact the measured object with temperature measuring probe, and reach thermal equilibrium state between sensor and object, so as to measure the true temperature of the object. The temperature measuring device is suitable for solid surface, liquid, gas and other environments. Super long contact temperature measuring instrument can be widely applied to various industrial sites, laboratories, medical environments and the like. For example, in grain pile temperature detection, the existing plug-in type temperature measuring instrument detects the temperature of the object by temperature measuring point built-in probe rod, and the temperature measuring point is a thermometer with multiple temperature sensors at different depth positions; it is suitable for temperature detection of liquid or material with one depth or height; in order to timely and accurately master the temperature change of distiller's yeast, the probe rod type thermometer is inserted into distiller's yeast, the temperature measurement mode of multiple points in probe rod is adopted, the temperature of distiller's yeast is detected by probe rod thermometer, and the change of distiller's yeast is timely mastered; because coal is easy to self-ignite due to its oxidizability, the temperature of coal pile is detected by using super long temperature measuring instrument for coal pile, the change of coal temperature is understood, the precursor of coal pile self-ignition is predicted, and measures are timely taken to avoid coal pile self-ignition.

[0003] The existing plug-in type temperature measuring instrument detects the temperature of the measured object, and the probe rod thereof is usually more than 2 meters high. Because the insertion depth of traditional liquid constant temperature medium tank is not enough, the device cannot be calibrated. At present, super long multi-point temperature measuring instrument is generally used in the fields of grain storage, distiller's yeast fermentation, coal storage, sewage treatment and biological fermentation. In the calibration process of such temperature measuring instrument, the following problems exist: ① there is no special calibration device for temperature range of (-25~50) ℃. ② there is no special calibration device for detecting calibration device with constant temperature working area length of more than 2000 mm. CONTENT OF THE UTILITY MODEL

[0004] To solve the above technical problems in the prior art, the utility model provides a super long contact type temperature measuring instrument temperature calibration device, which can calibrate super long contact temperature measuring instrument and effectively improve the temperature measurement value traceability system. Through regular calibration and detection, the accuracy of the instrument is ensured, so as to improve product quality and storage quality. At the same time, the research results are helpful to improve the quality management level of super long contact temperature measuring instrument manufacturing industry and promote the continuous innovation of temperature measuring equipment.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a super long contact type temperature measuring instrument temperature calibration device, including box, compressor, condenser, air circulation system, liquid crystal screen and control module, the top of box is equipped with at least one test hole of inserting contact type temperature measuring instrument, the lateral wall of box is installed with liquid crystal screen, install the compressor, condenser, air circulation system and control module in the box and place in the lower part of box, the compressor is connected with condenser, control module is electrically connected with liquid crystal screen through communication line, control module is electrically connected with air circulation system through communication line, and air circulation system places the upside of control module.

[0007] Optionally, the test hole is provided with a hole rubber plug, and the lower part of the contact type temperature measuring instrument passes through the hole rubber plug and extends into the box.

[0008] Optionally, the test hole is provided with a hole rubber plug.

[0009] Optionally, the lateral wall of the box is provided with a mounting hole for mounting the liquid crystal screen.

[0010] Optionally, the circuit board of the control module comprises a power module connected to a power supply for power supply, a main control module and a PID control module.

[0011] Optionally, the air circulation system comprises a fan and a motor for driving the fan to operate.

[0012] Optionally, the bottom of the box is provided with casters.

[0013] Optionally, the box comprises an inner layer and an outer layer, the outer layer is a cold-rolled steel plate, and the inner layer is a mirror surface stainless steel.

[0014] Optionally, the bottom of the outer layer adopts a grid structure.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The temperature calibration device can calibrate the value transmission of the super long temperature measuring equipment, provide more uniform and stable temperature environment, and significantly improve the calibration accuracy of the contact type temperature measuring instrument. At the same time, the production efficiency can be improved, and the traditional temperature calibration method may be time-consuming and low in efficiency. The temperature calibration device can greatly shorten the calibration time, improve the efficiency and reduce the cost through automatic and intelligent temperature control. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective view of the super long contact type temperature measuring instrument temperature calibration device of the utility model;

[0018] Figure 2 It is a use state diagram of the super long contact type temperature measuring instrument temperature calibration device of the utility model;

[0019] Figure 3 This is a front view of the temperature calibration device for the ultra-long contact thermometer of this utility model;

[0020] Figure 4 This is a side view of the temperature calibration device for the extra-long contact thermometer of this utility model;

[0021] Figure 5 This is a schematic diagram of the non-porous rubber stopper of the temperature calibration device for the ultra-long contact thermometer of this utility model. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0023] Example

[0024] like Figure 1 As shown, this utility model discloses a temperature calibration device for an ultra-long contact thermometer, comprising a housing 1, a compressor 2, a condenser 3, an air circulation system 4, an LCD screen 5, a control module 6, and casters 7. The top of the housing has at least one test hole 8 for inserting a contact thermometer 11. The LCD screen 5 is mounted on the side wall of the housing 1. The compressor 2, condenser 3, air circulation system 4, and control module 6 are installed inside the housing 1, located at the bottom. The compressor is connected to the condenser. The control module is electrically connected to the LCD screen via a communication line, and also electrically connected to the air circulation system and compressor via a communication line. The air circulation system is located above the control module. The contact thermometer is an ultra-long contact thermometer, specifically an ultra-long thermometer.

[0025] Optional, such as Figure 2 As shown, a perforated rubber plug 81 is installed in the test hole 8, and the lower part of the contact thermometer extends into the chamber through the perforated rubber plug. The upper end of the thermometer is fixed vertically in the test hole of the chamber by the perforated rubber plug.

[0026] Optional, such as Figure 3 , Figure 5 As shown, or a non-porous rubber plug 82 is installed in the test hole, and the device is sealed with a non-porous rubber plug when it is not in use.

[0027] Optionally, the side wall of the enclosure is provided with an installation port for mounting an LCD screen. The LCD screen is a touch-screen LCD display and is used to set a constant temperature inside the enclosure.

[0028] like Figure 4As shown, the box includes an inner layer and an outer layer, the outer layer is high-quality cold-rolled steel plate spray treatment, the inner layer adopts mirror stainless steel, the inner layer is designed with four corners and semicircular arc for easy cleaning, the bottom 10 of the outer layer is designed with a grid to facilitate the heat dissipation of the compressor. The box is made of high-pressure polyurethane, which has excellent heat preservation performance and is firm and reliable. The upper part of the box is 3 meters high, the lower part is 0.5 meters high, and the overall size is 3.5m x 1.5m x 1m.

[0029] Optionally, the circuit board of the control module 6 includes a power module connected to a power supply for power supply, a main control module, a PID control module, a temperature acquisition module, a storage module and a data processing module, etc. The control module is connected with a standard platinum resistance 12 through a wire, and the main control module can be a single-chip microcomputer for controlling the operation of each part of the box (such as the compressor and the air circulation system) by matching the PID control module. The standard platinum resistance is installed at the corner of the bottom of the inner cavity of the box, which is used to collect temperature data in the cavity, measure the constant temperature in real time and feed back to the control module. The control module is used for PID control: according to whether the measured temperature is accurate, automatically adjusts heating or refrigeration to ensure that the temperature is accurate within the set temperature range.

[0030] The control module is connected with each part by wire to control the opening or closing of the compressor and the air circulation system. The microcomputer PID control method is adopted, the temperature control is accurate with small fluctuation, and the touch liquid crystal display screen is matched to facilitate operation. The user uses the liquid crystal screen to control all operations (equivalent to sending instructions), selects and sets the temperature, switch, etc.; then the control module controls the liquid crystal screen, air circulation system and compressor to run. The control module can control the temperature in the inner cavity of the box, and can calibrate multiple temperature points of the super-long contact type temperature measuring instrument. The device can greatly shorten the calibration time, improve the efficiency and reduce the cost through the automatic and intelligent temperature control of the control module.

[0031] The inner cavity of the compressor and the condenser box is refrigerated and heated. The compressor uses R406A new environmentally friendly refrigerant, which is energy-saving and environmentally friendly. The temperature control range of the compressor is (-25~50)℃.

[0032] ‌In order to make the temperature of the upper and lower cavities in the box cavity uniform, an air circulation system is installed below the box. The air circulation system 4 includes a fan and a motor for driving the fan to operate. The fan is a centrifugal fan, which provides constant temperature air circulation in the inner cavity of the box to ensure uniform distribution of the temperature in the box. The inlet and outlet of the centrifugal fan are arranged at the connection between the upper and lower parts of the box (not shown in the figure).

[0033] Optionally, as shown in Figure 2 The box is installed with casters 7 at the bottom. The casters 7 are designed with universal wheels and independent fixed feet, which can be freely adjusted in direction and locked, and are convenient to move.

[0034] The temperature calibration device for the super-long contact type temperature measuring instrument is used for calibrating the super-long contact type temperature measuring instrument, the super-long contact type temperature measuring instrument can be inserted into the inner cavity of the box through the test hole located above the box, and then the liquid crystal screen touch operation is clicked, similar to opening the refrigerator, the control module controls the opening temperature, the inner cavity of the box is set to a constant temperature, and then the super-long temperature gauge is calibrated. The test hole is provided with two kinds of silica gel plugs with holes and without holes, which can be inserted into the silica gel plug during testing, so as to avoid temperature leakage caused by too large gap between the long rod temperature measuring instrument and the test hole of the box. The device can be inserted into the non-porous silica rubber plug when not in use. The diameter of the test hole is 12mm, and the diameter of the hole in the silica rubber plug is 10mm.

[0035] The utility model can calibrate the value transmission work of super-long temperature measuring equipment such as grain temperature gauge, temperature gauge for wine yeast fermentation, temperature gauge for coal storage, sewage treatment temperature gauge, can provide more uniform, stable temperature environment, thereby significantly improve the calibration accuracy of contact type temperature measuring instrument. At the same time, the production efficiency can be improved, and the traditional temperature calibration method can be time-consuming and low in efficiency. The device can greatly shorten the calibration time, improve the efficiency and reduce the cost through automatic and intelligent temperature control.

[0036] In the description of the present specification, the description of the terms "in an embodiment", "in another embodiment", "exemplary" or "in a specific embodiment" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] Although the utility model has been described in detail above with general description, specific implementation and test, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model all belong to the scope of protection required by the utility model.

Claims

1. An ultra-long contact type temperature measuring instrument temperature calibration device, comprising a box body (1), a compressor (2), a condenser (3), an air circulation system (4), a liquid crystal screen (5) and a control module (6), characterized in that, The box top is provided with at least one test hole (8) for plug-in contact type temperature detector (11), the box (1) side wall is provided with liquid crystal screen (5), the box (1) inner cavity is provided with compressor (2), condenser (3), air circulation system (4) and control module (6) arranged in the lower part of the box, the compressor (2) is connected with the condenser, the control module (6) is electrically connected with the liquid crystal screen (5) through communication line, the control module (6) is electrically connected with the air circulation system (4) and the compressor (2) through communication line, and the air circulation system is arranged on the upper side of the control module.

2. The temperature calibration device for the super-long contact type temperature measuring instrument according to claim 1, characterized in that, The test hole (8) is provided with a hole rubber plug (81), and the contact type temperature detector (11) is inserted into the box through the hole rubber plug.

3. The temperature calibration device for the super-long contact type temperature measuring instrument according to claim 1, characterized in that, The test hole is provided with a hole rubber plug (82).

4. The temperature calibration device for the super-long contact type temperature measuring instrument according to claim 1, characterized in that, The box (1) side wall is provided with a mounting hole for mounting the liquid crystal screen.

5. The temperature calibration device for the super-long contact type temperature measuring instrument according to claim 1, characterized in that, The circuit board of the control module (6) comprises a power module connected to a power supply for power supply, a main control module, a PID control module, a temperature acquisition module, a storage module and a data processing module, and the control module is connected with a standard platinum resistance (12).

6. The temperature calibration device for the super-long contact type temperature measuring instrument according to claim 1, characterized in that, The air circulation system (4) comprises a fan and a motor for driving the fan to operate.

7. The temperature calibration device for the super-long contact type temperature measuring instrument according to claim 1, characterized in that, The box bottom is provided with a castor (7).

8. The temperature calibration device for the super-long contact type temperature measuring instrument according to claim 7, characterized in that, The box comprises an inner layer and an outer layer, the outer layer is a cold-rolled steel plate, and the inner layer is a mirror surface stainless steel.

9. The temperature calibration device for the contact thermometer of the super-long type according to claim 8, characterized in that, The bottom (10) of the outer layer adopts a grid structure.

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