Multi-thermal resistor structure

Abstract

The utility model provides a multi-thermal resistor structure, and relates to the technical field of thermal resistors. The device comprises a sleeve, a detection tube and an electric box which are connected in sequence, a thermal resistance unit is arranged in the sleeve and the detection tube, a wiring terminal is arranged in the electric box and electrically connected with the thermal resistance unit, a plurality of supports located in the sleeve are arranged on the thermal resistance unit, and a pressure gauge is arranged on the detection tube. Whether a pipeline or equipment leaks or not is judged through pressure monitoring, and materials are prevented from entering the thermal resistor.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of thermal resistance, specifically relates to a multi-branch thermal resistance structure. BACKGROUND

[0002] Thermal resistance is the most commonly used temperature detector in the medium and low temperature area, and thermal resistance temperature measurement is based on the characteristic that the resistance value of metal conductor increases with the increase of temperature, and its main feature is high measurement precision and stable performance.

[0003] In the prior art, when the thermal resistance is installed on the pipeline or equipment, when the pipeline or equipment leaks, the material enters the thermal resistance, which is often not found at the first time, and finally leads to the damage of the thermal resistance and the leakage of the material. UTILITY MODEL CONTENT

[0004] The utility model aims at developing a multi-branch thermal resistance structure which can judge whether the pipeline or equipment leaks by pressure monitoring and avoid the material entering the thermal resistance.

[0005] The utility model realizes the following technical scheme:

[0006] A multi-branch thermal resistance structure comprises:

[0007] A sleeve pipe, a detection pipe and an electric box connected in sequence;

[0008] A thermal resistance unit is arranged in the sleeve pipe and the detection pipe;

[0009] A terminal is arranged in the electric box and is electrically connected with the thermal resistance unit;

[0010] Among them, the thermal resistance unit is provided with a plurality of supports in the sleeve pipe, and the detection pipe is provided with a pressure gauge.

[0011] Optionally, the thermal resistance unit comprises a plurality of wires, the wires are connected with the supports, and the wires are provided with first temperature sensing elements at the end portions.

[0012] Optionally, the two ends of the sleeve pipe are closed ends, the closed end of the sleeve pipe away from the detection pipe is provided with a limiting block matched with the first temperature sensing elements at the end portions of the plurality of wires, and the limiting block has an inner hole for inserting the first temperature sensing elements and the wires.

[0013] Optionally, the inner hole of the limiting block comprises a large hole and a small hole coaxially, the large hole is located on the side close to the detection pipe, the outer end of the small hole of the limiting block is located outside the sleeve pipe, the outer side of the first temperature sensing element is wrapped with a protective shell matched with the shape of the inner hole of the limiting block, and sealing material is arranged between the protective shell and the inner hole.

[0014] Optionally, the wires are arranged in parallel with the axial direction of the sleeve pipe, and the plurality of wires are arranged at equal intervals along the radial direction of the sleeve pipe.

[0015] Optionally, the bracket comprises a horizontal frame perpendicular to the axial direction of the sleeve, a wire guide block is slidably arranged on the horizontal frame and matched with the plurality of electric wires, a wire hole is arranged on the wire guide block and through which the electric wire passes, and the wire hole is arranged in parallel with the axial direction of the sleeve.

[0016] Optionally, a second temperature sensing element is arranged on the electric wire in the wire hole of the wire guide block and in contact with the wire guide block.

[0017] Optionally, a through hole is arranged on the outer wall of each end of the horizontal frame, a slot is arranged on the inner side of the through hole, a sliding block is arranged in the slot, and a spring telescopic rod is arranged between the inner end of the slot and the sliding block.

[0018] Optionally, the side of the sliding block close to the through hole is spherical, and the inner diameter of the through hole is smaller than the maximum outer diameter of the sphere.

[0019] Optionally, the end of the detection tube away from the sleeve is a closed end, a plurality of through holes through which the electric wire passes are arranged on the closed end of the sleeve and the detection tube, and a sealing sleeve is arranged between the electric wire and the through hole.

[0020] The utility model discloses a beneficial effect is:

[0021] The utility model discloses a detection tube communicated with the sleeve, a pressure gauge is arranged on the detection tube, the pressure in the sleeve is monitored, when the material in the pipeline or equipment leaks into the sleeve, the pressure change of the pressure gauge can be used to know the situation, so as to repair in time to protect the thermal resistance, and avoid that the material leaks into the external environment, the bracket not only facilitates the installation of the thermal resistance unit, makes the first temperature sensing element accurate insertion limit block, and the bracket holds the electric wire and makes its structure stable, the elastic sliding block of the end of the bracket makes the bracket can carry out a certain degree of elastic displacement in the sleeve, so as to buffer the vibration generated when the material in the pipeline or equipment is transported, makes the bracket and the thermal resistance unit all get protection, in addition, the sleeve and the bracket have excellent heat conduction performance, the sliding block is in close contact with the sleeve under the elastic force of the spring telescopic rod, the medium temperature in the pipeline or equipment is also transmitted to the second temperature element through the sleeve and the bracket, and the accuracy of the whole thermal resistance temperature measurement is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0023] Fig. 1 The utility model structural drawing is provided;

[0024] Fig. 2 It is the sleeve internal structure view;

[0025] Fig. 3 It is the horizontal frame end structure view.

[0026] Reference signs: 1, sleeve;2, detection tube;3, electric box;4, pressure gauge;5, electric wire;6, horizontal frame;7, sliding block;8, wire guide block;9, first temperature sensing element;10, sheath;11, limiting block;12, through hole;13, slotted hole;14, spring telescopic rod. DETAILED DESCRIPTION

[0027] Hereinafter, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present invention. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0028] In the description of the present invention, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present invention.

[0029] The embodiments of the present utility model will be described in detail below in combination with the drawings.

[0030] As Figs. 1-3 shown, the utility model discloses a multi-branch thermistor structure, including sleeve 1, detection tube 2 and electric box 3 of connection in proper order, sleeve 1 is welded with detection tube 2, and the end of detection tube 2 close to sleeve 1 is equipped with flange, and the flange connection between detection tube 2 and electric box 3, and sleeve 1 is equipped with thermistor unit, and sleeve 1 is equipped with a plurality of supports that can slide in sleeve 1 on thermistor unit, and a plurality of supports are arranged on thermistor unit at equal intervals.

[0031] Thermistor unit includes a plurality of electric wires 5 that are arranged axially parallel to sleeve 1, a plurality of electric wires 5 are arranged at equal intervals along the radial direction of sleeve 1, the end of electric wire 5 is equipped with first temperature sensing element 9, and the both ends of sleeve 1 are closed ends, and the closed end of sleeve 1 away from detection tube 2 is equipped with limiting block 11 that cooperates with the first temperature sensing element 9 of the end of a plurality of electric wires 5, and limiting block 11 has the inner hole for the insertion of first temperature sensing element 9 and electric wire 5.

[0032] The inner hole of the limiting block 11 includes a large hole and a small hole coaxially, the large hole is close to the detection tube 2, the outer end of the small hole of the limiting block 11 is outside the sleeve 1, the outer side of the first temperature sensing element 9 is wrapped with a shell 10 matched with the shape of the inner hole of the limiting block 11, when the first temperature sensing element 9 is inserted into the limiting block 11, the shell 10 is in contact with the inner hole, and the shell 10 is sealed by filling sealing material between the shell 10 and the inner hole. A hole is provided on the pipeline or equipment for the closed end of the sleeve 1 to be inserted, a flange is provided on the hole, and the detection tube 2 is connected with the flange of the hole after the sleeve 1 is inserted into the hole, so that the entire sleeve enters the pipeline or equipment.

[0033] The bracket includes a cross frame 6 perpendicular to the axial direction of the sleeve 1, a plurality of wire blocks 8 are slidably arranged on the cross frame 6, the wire blocks 8 have a large friction with the cross frame 6, so that the wire blocks 8 are not easy to slide on the cross frame 6, and wire holes are penetrated through the wire blocks 8, the wire holes are parallel to the axial direction of the sleeve 1. The positions of the wire blocks 8 are adjusted by sliding the wire blocks 8, so that the positions of the wire blocks 8 and the wire holes are respectively corresponding to a plurality of electric wires 5, the plurality of electric wires 5 respectively pass through the wire holes of the plurality of wire blocks 8, and the connection between the electric wires 5 and the bracket is realized.

[0034] The electric wires 5 in the wire holes of the wire blocks 8 are further connected with second temperature sensing elements (not shown in the figure), the second temperature sensing elements are in contact with the wire blocks, and the temperature of the wire blocks 8 is measured.

[0035] The outer walls of both ends of the cross frame 6 are respectively provided with through holes 12, the inner sides of the through holes 12 are provided with grooves 13, the grooves 13 are provided with sliding blocks 7, one side of the sliding block 7 close to the through hole 12 is in a spherical shape, the inner diameter of the through hole 12 is smaller than the maximum outer diameter of the spherical surface, a spring telescopic rod 14 is arranged between the inner end of the groove 13 and the sliding block 7 as an elastic member, and the spring force of the spring telescopic rod 14 makes the spherical surface of the sliding block 7 extend out of the through hole 12 to the maximum extent. The sleeve 1 and the bracket are made of materials with excellent heat conductivity, and the heat of the material is transmitted to the second temperature sensing elements through the sleeve 1 and the bracket.

[0036] The end of the detection tube 2 away from the sleeve 1 is also a closed end, a plurality of through holes (not shown in the figure) for the electric wires 5 to pass through are arranged on the closed end of the sleeve 1 welded with the detection tube 2 and the closed end of the detection tube 2, and sealing sleeves are arranged in the through holes and between the through holes and the electric wires 5. A pressure gauge 4 is arranged on the detection tube 2, and the pressure gauge 4 monitors the pressure in the detection tube 2. The electric wires 5 enter an electric box 3 through the through holes of the closed end of the detection tube 2, and the electric box 3 is provided with terminal blocks electrically connected with the electric wires 5.

[0037] The utility model discloses a detection pipe 2 in communication with the sleeve pipe 1 is provided, and the detection pipe 2 is equipped with the pressure gauge 4, realizes pressure monitoring to the inside of sleeve pipe 1, and when the material in pipeline or equipment leaks into sleeve pipe 1, can know this situation through the pressure change of pressure gauge 4, so as to repair in time to protect the thermal resistance, and avoid the material to leak into external environment, the support not only facilitates the installation of thermal resistance unit, makes the first temperature sensing element 9 accurate insertion limit block 11, and the support holds up wire 5 and makes its structure stable, and the elastic sliding block 7 of support end makes the support can carry out a certain degree of elastic displacement in sleeve pipe 1, so as to buffer the vibration produced when the material in pipeline or equipment is transported, makes the support and thermal resistance unit all get protection, in addition, the sleeve pipe 1 and the support excellent heat conduction performance, and the sliding block 7 is in spring telescopic rod 14 elastic force push and is in close contact with sleeve pipe 1, and the medium temperature in pipeline or equipment also passes through sleeve pipe 1 and the support and reaches second temperature element, and the accuracy of whole thermal resistance temperature measurement is more accurate.

[0038] The above embodiments are only preferred embodiments of the utility model, and are not a limitation on the technical scheme of the utility model, and as long as the technical scheme can be realized on the basis of the above embodiments without creative labor, it should be considered to fall within the protection scope of the utility model patent.

Claims

1. A multi-branch thermal resistor structure, characterized by, The utility model relates to a temperature sensor, comprising: a sleeve, a detection tube and an electric box connected in sequence; a thermal resistance unit arranged in the sleeve and the detection tube; a terminal arranged in the electric box and electrically connected with the thermal resistance unit; wherein the thermal resistance unit is provided with a plurality of supports in the sleeve, and the detection tube is provided with a pressure gauge.

2. The multi-branch resistance structure according to claim 1, wherein The thermal resistance unit comprises a plurality of wires connected with the supports, and the wires are provided with first temperature sensing elements at the ends.

3. The multi-branch resistance structure according to claim 2, wherein Both ends of the sleeve are closed, and the closed end of the sleeve away from the detection tube is provided with a limiting block matched with the first temperature sensing elements at the ends of the plurality of wires, and the limiting block has an inner hole for inserting the first temperature sensing elements and the wires.

4. The multi-branch resistance structure according to claim 3, wherein The inner hole of the limiting block comprises a large hole and a small hole coaxially, the large hole is located near the detection tube, the outer end of the small hole of the limiting block is located outside the sleeve, the outer side of the first temperature sensing element is wrapped with a shell matched with the shape of the inner hole of the limiting block, and a sealing material is arranged between the shell and the inner hole.

5. The multi-branch resistance structure of claim 2, wherein, The wires are arranged axially parallel to the sleeve, and the plurality of wires are arranged at equal intervals radially along the sleeve.

6. The multi-branch resistance structure according to claim 5, wherein The support comprises a horizontal support perpendicular to the axial direction of the sleeve, a wire guide block matched with the plurality of wires is slidingly arranged on the horizontal support, a wire hole for the wires to pass through is arranged on the wire guide block, and the wire hole is arranged axially parallel to the sleeve.

7. The multi-branch resistance structure of claim 6, wherein, A second temperature sensing element in contact with the wire guide block is arranged on the wire in the wire hole of the wire guide block.

8. The multi-branch resistance structure of claim 7, wherein, The outer wall of both ends of the horizontal support is provided with a through hole, the inner side of the through hole is provided with a slot, a sliding block is arranged in the slot, and a spring telescopic rod is arranged between the inner end of the slot and the sliding block.

9. The multi-branch resistance structure of claim 8, wherein, The side of the sliding block close to the through hole is spherical, and the inner diameter of the through hole is smaller than the maximum outer diameter of the spherical surface.

10. The multi-branch resistance structure of claim 3, wherein, The end of the detection tube away from the sleeve is closed, and the closed end of the sleeve and the detection tube and the closed end of the detection tube are provided with a plurality of through holes for the wires to pass through, and a sealing sleeve is arranged between the through holes and the wires.

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