CN215178263U - Online comparison and calibration device for thermometer - Google Patents

Abstract

The utility model relates to a calibrating installation is compared on line to thermometer, include: a conveying pipeline of the thermometer to be detected is arranged, a flow dividing pipe is arranged on the conveying pipeline in front of the thermometer to be detected along the conveying direction, a return pipe is arranged on the conveying pipeline behind the thermometer to be detected, and one end of each of the flow dividing pipe and the return pipe is communicated with the conveying pipeline; the calibration box is arranged between the shunt pipe and the return pipe, the opposite side of the calibration box is provided with an inlet end and a return end, the inlet end is connected with one end of the shunt pipe, which is far away from the conveying pipeline, through a flange, the return end is connected with one end of the return pipe, which is far away from the conveying pipeline, the top of the calibration box is provided with a plurality of standard thermometers, and the detection ends of the standard thermometers all extend into the calibration box. The utility model discloses set up a plurality of standard thermometers on the examination case, it is more accurate to detect the contrast examination of thermometer, and calibration error is little, and the security is high.

Description

Online comparison and calibration device for thermometer

Technical Field

The utility model relates to a thermometer witnessed inspections technical field especially relates to a calibrating installation is compared on line to thermometer.

Background

The thermometer is an element for measuring temperature, plays an important role in chemical production, and needs to be calibrated regularly in order to ensure that the temperature measured by the thermometer is accurate.

The calibration of present thermometer is generally with the thermometer dismantlement back, place in same temperature field with standard thermometer and compare, the coordinated control condition can appear in many scenes, the temperature value of being measured the thermometer changes and probably leads to the control system of a whole set of setting to send corresponding instruction promptly, cause whole equipment to appear phenomenon such as shut down and take place, in order to avoid above-mentioned condition to take place, generally reserve near being measured the thermometer and detect with the blind hole, adopt blind hole installation standard temperature timing, must make the measuring point position expose in the external environment, the material overflows when there is the malleation in the measuring point position, can inhale the air when there is the negative pressure in the measuring point position, cause air pollution, there is the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned technical problem and provide a simple structure, the good online calibrating installation that compares of thermometer of security to solve above-mentioned at least one technical problem.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

an on-line comparison and verification device for thermometers comprises:

a conveying pipeline of the thermometer to be calibrated is arranged, a flow dividing pipe is arranged on the conveying pipeline in front of the thermometer to be calibrated along the conveying direction, a return pipe is arranged on the conveying pipeline behind the thermometer to be calibrated, and one end of the flow dividing pipe and one end of the return pipe are both communicated with the conveying pipeline;

set up in the shunt tubes with examine and determine the case between the back flow, the opposite side of examining and determining the case is provided with entrance point and return end, the entrance point with the shunt tubes is kept away from pipeline's one end flange joint, the return end with the back flow is kept away from pipeline's one end flange joint, the top of examining and determining the case is provided with a plurality of standard thermometers, the sense terminal of standard thermometer all stretches into examine and determine in the case.

The utility model has the advantages that: the utility model discloses set up a plurality of standard thermometers on the examination case, it is more accurate to detect the contrast examination of thermometer, and calibration error is little, and the security is high.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, the circumferential outer side wall of the verification box is coated with heat preservation cotton.

The beneficial effect of adopting the further scheme is that: the heat preservation cotton can reduce the loss of heat, and the contrast examination is more accurate.

Furthermore, the bottom wall of the verification box is provided with a liquid discharge pipe, one end of the liquid discharge pipe is communicated with the inner bottom of the verification box, and a liquid discharge valve is arranged on the liquid discharge pipe.

The beneficial effect of adopting the further scheme is that: the liquid discharge pipe can timely discharge liquid or gas in the verification box, and is convenient for timely cleaning the verification box after use.

Furthermore, all be provided with around the bottom of examination case and remove the wheel.

The beneficial effect of adopting the further scheme is that: the movable wheel can be convenient for the detection box to move after being detached.

Furthermore, a pull rod is arranged on the side face of the detection box, and one end of the pull rod is hinged with the side wall of the detection box.

The beneficial effect of adopting the further scheme is that: the pull rod can be convenient for pull the verification box, and the movement is more convenient.

Furthermore, valves are arranged on the shunt pipe and the return pipe.

The beneficial effect of adopting the further scheme is that: the valve can be opened after the verification box is installed, so that fluid in the conveying pipeline can conveniently enter the verification box, the conveying pipeline can be plugged before the verification box is detached, and the safety is good.

Furthermore, the verification box is a square shape formed by full welding of a plurality of stainless steel plates.

The beneficial effect of adopting the further scheme is that: the detection box made of the stainless steel plate has high compressive strength and wide application range.

Further, the thickness of the stainless steel plate is 8-12 mm.

The beneficial effect of adopting the further scheme is that: the stainless steel plate with the thickness has good compressive strength.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a thermometer to be detected; 2. a delivery conduit; 3. a shunt tube; 4. a return pipe; 5. a verification box; 6. a standard thermometer; 7. heat preservation cotton; 8. a liquid discharge pipe; 9. a drain valve; 10. a moving wheel; 11. a pull rod; 12. and (4) a valve.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Examples

As shown in FIG. 1, the core of the utility model is to provide a calibrating installation is compared on line to thermometer, include:

a conveying pipeline 2 of the thermometer 1 to be verified is arranged, a shunt pipe 3 is arranged on the conveying pipeline 2 in front of the thermometer 1 to be verified along the conveying direction, a return pipe 4 is arranged on the conveying pipeline 2 behind the thermometer 1 to be verified, and one end of the shunt pipe 3 and one end of the return pipe 4 are both communicated with the conveying pipeline 2; it will be readily understood that the shunt tube 3 serves for shunting a part of the transport medium in the transport pipe 2 and that the return tube 4 serves for returning the transport medium in the transport pipe of the transport medium tank.

The calibration box 5 is arranged between the shunt pipe 3 and the return pipe 4, the opposite side of the calibration box 5 is provided with an inlet end and a return end, the inlet end and the shunt pipe 3 are connected through a flange at one end far away from the conveying pipeline 2, the return end and the return pipe 4 are connected through a flange at one end far away from the conveying pipeline 2, the top of the calibration box 5 is provided with a plurality of standard thermometers 6, and the detection ends of the standard thermometers 6 all extend into the calibration box 5.

It should be noted that, a calibration cavity is arranged in the calibration box 5, the inlet end and the return end are both communicated with the calibration cavity, a mounting flange is arranged at the top of the calibration box 5 corresponding to the standard thermometer 6, the standard thermometer 6 is connected with the mounting flange, and the detection end of the standard thermometer 6 extends into the calibration cavity to be contacted with the transport medium, after the calibration box 5 is mounted, the transport medium is introduced into the calibration cavity, stands for 30 minutes, observes the temperature measured by the standard thermometer 6, compares the temperature with the reading of the thermometer 1 to be calibrated, and then can calibrate the thermometer 1 to be calibrated; in the present embodiment, two standard thermometers 6 are provided.

Preferably, the circumferential outer side wall of the verification box 5 is coated with heat insulation cotton 7. It should be noted that the heat preservation rock wool 7 is heat preservation rock wool.

Preferably, the bottom wall of the detection box 5 is provided with a drain pipe 8, one end of the drain pipe 8 is communicated with the inner bottom of the detection box 5, and the drain pipe 8 is provided with a drain valve 9.

When the transport medium in the transport pipeline 2 is liquid, the liquid transport medium in the verification tank 5 can be discharged by opening the drain valve 9 after the verification, and it is needless to say that a gas under pressure in the verification tank 5 may be discharged.

Preferably, the movable wheels 10 are arranged around the bottom of the verification box 5.

It should be noted that, the flange connection of the calibration box 5, the shunt tube 3 and the return tube 4 is detachable, after the comparison calibration of the thermometer 1 to be calibrated at the detection point is completed, the calibration box 5 can be detached and moved to the next detection point, and the movable wheel 10 can facilitate the movement of the calibration box 5 on the ground.

Preferably, a pull rod 11 is arranged on the side surface of the verification box 5, and one end of the pull rod 11 is hinged with the side wall of the verification box 5.

It should be noted that a handle is disposed at an end of the pull rod 11 away from the verification box 5, and the pull rod 11 can facilitate pulling the verification box 5, so that the verification box 5 can move to the next detection point.

Preferably, valves 12 are provided on both the shunt tube 3 and the return tube 4.

It should be noted that, after the calibration box 5, the shunt tube 3 and the return tube 4 are installed, the valves 12 on the shunt tube 3 and the return tube 4 can be opened, so that the conveying medium in the conveying pipeline 2 enters the calibration box 5, and then is returned to the conveying pipeline 2 from the return tube 4, after the conveying medium is stably conveyed for 30 minutes, the reading of the standard thermometer 6 is compared with the reading of the thermometer 1 to be calibrated, the thermometer 1 to be calibrated can be calibrated, after the calibration is completed, the valves 12 on the shunt tube 3 and the return tube 4 are closed, the drain valve 9 is opened, and after the conveying medium in the calibration box 5 is discharged, the calibration box 5 can be disassembled, so that the calibration box 5 is moved to the protocol detection point for calibration.

Preferably, the certification box 5 is a square shape formed by full-welding a plurality of stainless steel plates.

The calibration cavity in the calibration box 5 is square with a size of 250 × 250 × 450mm, and the stainless steel plate is welded by full-length welding to ensure the sealing performance of the calibration box 5 during the calibration process.

Preferably, the thickness of the stainless steel plate is 8-12 mm. In this embodiment, the thickness of the stainless steel plate is 10mm, and since the verification box 5 is heavy, the moving wheels 10 are arranged at the bottom of the verification box 5 and are matched with the pull rod 11 to facilitate the verification box 5 to move on the ground.

In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the system or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (8)

1. The utility model provides a calibrating installation is compared on line to thermometer which characterized in that includes:

the thermometer calibrating device comprises a conveying pipeline (2) provided with a thermometer (1) to be calibrated, a shunt pipe (3) is arranged on the conveying pipeline (2) in front of the thermometer (1) to be calibrated along the conveying direction, a return pipe (4) is arranged on the conveying pipeline (2) behind the thermometer (1) to be calibrated, and one end of each of the shunt pipe (3) and the return pipe (4) is communicated with the conveying pipeline (2);

set up in shunt tubes (3) with examine and determine case (5) between back flow (4), the opposite side of examining and determining case (5) is provided with entrance point and return end, the entrance point with shunt tubes (3) are kept away from the one end flange joint of pipeline (2), the return end with back flow (4) are kept away from the one end flange joint of pipeline (2), the top of examining and determining case (5) is provided with a plurality of standard thermometers (6), the sense terminal of standard thermometer (6) all stretches into examine and determine in the case (5).

2. The on-line thermometer comparison and verification device as claimed in claim 1, wherein the circumferential outer side wall of the verification box (5) is coated with heat insulation cotton (7).

3. A thermometer online comparison verification device as claimed in claim 2, wherein the bottom wall of the verification box (5) is provided with a drain pipe (8), one end of the drain pipe (8) is communicated with the inner bottom of the verification box (5), and the drain pipe (8) is provided with a drain valve (9).

4. A thermometer on-line comparison verification device as claimed in claim 3, wherein the bottom of the verification box (5) is provided with moving wheels (10) all around.

5. A thermometer on-line comparison verification device as claimed in claim 4, wherein a pull rod (11) is arranged on the side of the verification box (5), and one end of the pull rod (11) is hinged with the side wall of the verification box (5).

6. A thermometer on-line comparison assay device as claimed in any one of claims 1 to 5, wherein valves (12) are provided on both the shunt tube (3) and the return tube (4).

7. A thermometer online comparison verification device according to any one of claims 1-5, wherein the verification box (5) is a square made by full-welding a plurality of stainless steel plates.

8. The on-line thermometer comparison and verification device as claimed in claim 7, wherein the thickness of the stainless steel plate is 8-12 mm.

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