CN214668737U - Polyurethane insulating tube heat conduction coefficient measuring device - Google Patents
Polyurethane insulating tube heat conduction coefficient measuring device Download PDFInfo
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- CN214668737U CN214668737U CN202120787699.6U CN202120787699U CN214668737U CN 214668737 U CN214668737 U CN 214668737U CN 202120787699 U CN202120787699 U CN 202120787699U CN 214668737 U CN214668737 U CN 214668737U
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Abstract
The utility model discloses a polyurethane insulating tube heat conduction coefficient survey device, which comprises a housin, the inside backup pad that is equipped with of casing, be equipped with the buffer of symmetry between backup pad and the casing bottom, install thermal oil tank and conduction oil heating device in the backup pad, the oil-out of thermal oil tank and conduction oil heating device's oil inlet are through first oil pipe intercommunication, the top of casing is equipped with the supporting shoe that is used for the fixed polyurethane insulating tube that awaits measuring, conduction oil heating device's oil-out and the oil inlet of the polyurethane insulating tube that awaits measuring pass through second oil pipe intercommunication, the oil inlet of thermal oil tank and the oil-out of the polyurethane insulating tube that awaits measuring communicate through first time oil pipe, it has the second to return oil pipe still to communicate between polyurethane insulating tube that awaits measuring and the conduction oil heating device, control and data collection module are installed to the interior top of casing. The utility model discloses the shock resistance is strong, can reduce intensity of labour, can effectively eliminate two axial heat losses of tip of the polyurethane insulating tube that await measuring, improves the survey precision.
Description
Technical Field
The utility model relates to a thermal performance detection device technical field, concretely relates to polyurethane insulating tube heat conduction coefficient survey device.
Background
The polyurethane thermal insulation pipe is formed by foaming a high-function polyether polyol composite material and multi-time methyl polyphenyl polyisocyanate as raw materials through chemical reaction. The polyurethane heat-insulating pipe is used for heat-insulating and cold-insulating engineering of indoor and outdoor various pipelines, centralized heat-supplying pipelines, central air-conditioning pipelines, chemical industry, medicine and other industrial pipelines. The polyurethane foaming heat preservation pipe is developed rapidly as an excellent heat insulation material since the emergence of polyurethane synthetic materials in the thirty years, the application range of the polyurethane foaming heat preservation pipe is wider and wider, and the polyurethane foaming heat preservation pipe is widely applied to various pipelines for heating, refrigeration, oil transportation, steam transportation and the like due to simple construction and remarkable energy-saving and corrosion-resistant effects. The measurement of thermal performance parameters such as thermal resistance, thermal conductivity and the like of the thermal insulation pipe is a main basis for measuring the thermal performance of the thermal insulation pipe. Because the thermal loss of the polyurethane heat preservation pipe is the key for researching the thermal performance and the heat transfer principle of the polyurethane heat preservation pipe, all heat needs to be transferred in the radial direction in the testing process. The existing measuring device is simple in structure, axial heat loss of two end parts of the test pipe section cannot be eliminated, the error of a detection result is large, and the existing measuring device is poor in shock resistance, so that the requirement for operation of a detector is improved. Therefore, a device for measuring the thermal conductivity of the polyurethane thermal insulation pipe is provided to solve the above problems.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the above-mentioned background art, the utility model provides a polyurethane insulating tube coefficient of heat conduction survey device is used for overcoming this defect.
A device for measuring the heat conduction coefficient of a polyurethane heat-insulating pipe comprises a shell; a support plate is arranged inside the shell; symmetrical buffer devices are arranged between the supporting plate and the bottom of the shell; the supporting plate is provided with a heat conduction oil tank and a heat conduction oil heating device; an oil outlet of the heat-conducting oil tank is communicated with an oil inlet of the heat-conducting oil heating device through a first oil outlet pipe; the top of the shell is provided with a supporting block for fixing a polyurethane thermal insulation pipe to be detected; an oil outlet of the heat-conducting oil heating device is communicated with an oil inlet of the polyurethane heat-insulating pipe to be detected through a second oil outlet pipe; an oil inlet of the heat-conducting oil tank is communicated with an oil outlet of the polyurethane heat-insulating pipe to be tested through a first oil return pipe; a second oil return pipe is communicated between the polyurethane heat-insulating pipe to be detected and the heat-conducting oil heating device; and a control and data collection module is installed at the inner top of the shell.
As a preferred scheme, a first temperature detection module is arranged on the heat conduction oil heating device; one end of the second oil outlet pipe, which is close to the polyurethane heat-insulating pipe to be detected, is respectively provided with a second temperature detection module; a third temperature detection module is arranged at one end of the first oil return pipe, which is close to the polyurethane heat-insulating pipe to be detected; the first temperature detection module, the second temperature detection module and the third temperature detection module are respectively electrically connected with the control and data collection module.
Preferably, the first oil outlet pipe is provided with a first oil pump and a first oil outlet valve; the first oil pump and the first oil outlet valve are controlled by the control and data collection module.
Preferably, a second oil pump and a second oil outlet valve are arranged on the second oil outlet pipe; and the second oil pump and the second oil outlet valve are controlled by the control and data collection module.
As a preferred scheme, a first oil return valve is arranged on the first oil return pipe; the first oil return valve is controlled by the control and data collection module.
As a preferred scheme, the second oil return pipe comprises a main pipe, a first branch pipe and a second branch pipe; the first branch pipeline and the second branch pipeline are respectively communicated with the main pipeline; the first branch pipeline is arranged at the oil outlet end of the polyurethane thermal insulation pipe to be detected; the second branch pipe is arranged at the oil inlet end of the polyurethane heat-insulating pipe to be tested.
As a preferred scheme, a second oil return valve is arranged on the first branch pipeline; and a third oil return valve is arranged on the second branch pipe.
Preferably, a pressure gauge is arranged on the heat-conducting oil tank; the pressure gauge is electrically connected with the control and data collection module.
Preferably, the buffering device comprises a limiting plate arranged at the bottom of the supporting plate and a fixed block arranged at the bottom in the shell; a limiting groove is formed in the side end of the fixing block; the limiting block is arranged at the bottom of the limiting plate; the limiting block is arranged in the limiting groove in a sliding mode.
Preferably, a groove is formed in the inner surface of the fixing block in a sinking manner; a buffer spring is arranged between the fixed block and the supporting plate; the buffer spring is arranged in the groove.
Has the advantages that: the utility model discloses a set up the shock resistance of this polyurethane insulating tube heat conduction coefficient survey device of buffer reinforcing, reduce the operating requirement to the measurement personnel to reduce intensity of labour, secondly, realize the oil and the oil return of conduction oil through setting up pipe-line system, can effectively eliminate two axial heat losses of tip of the polyurethane insulating tube that awaits measuring, improve the survey precision.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-a shell; 2-a support plate; 3-heat conducting oil tank; 4-a heat-conducting oil heating device; 5-a first oil outlet pipe; 6-a supporting block; 7-polyurethane heat preservation pipe to be measured; 8-a second oil outlet pipe; 9-a first oil return pipe; 10-a second oil return pipe; 11-a control and data collection module; 12-a first oil pump; 13-a first outlet valve; 14-a first temperature detection module; 15-a liquid level meter; 16-a second oil pump; 17-a second outlet valve; 18-a second temperature detection module; 19-a third temperature detection module; 20-a first oil return valve; 21-a second oil return valve; 22-a third scavenge valve; 23-a pressure gauge; 24-fixing blocks; 25-a limiting plate; 26-a limiting block; 27-a limiting groove; 28-buffer spring.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
In the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the utility model provides a device for measuring the heat conduction coefficient of a polyurethane heat preservation pipe, which comprises a shell 1; a support plate 2 is arranged inside the shell 1; symmetrical buffer devices are arranged between the supporting plate 2 and the bottom of the shell 1; the supporting plate 2 is provided with a heat-conducting oil tank 3 and a heat-conducting oil heating device 4; an oil outlet of the heat-conducting oil tank 3 is communicated with an oil inlet of the heat-conducting oil heating device 4 through a first oil outlet pipe 5; the top of the shell 1 is provided with a supporting block 6 for fixing a polyurethane heat-insulating pipe 7 to be tested; an oil outlet of the heat conduction oil heating device 4 is communicated with an oil inlet of the polyurethane heat preservation pipe 7 to be detected through a second oil outlet pipe 8; an oil inlet of the heat-conducting oil tank 3 is communicated with an oil outlet of the polyurethane heat-insulating pipe 7 to be tested through a first oil return pipe 9; a second oil return pipe 10 is communicated between the polyurethane heat-insulating pipe 7 to be tested and the heat-conducting oil heating device 4; a control and data collection module 11 is arranged at the inner top of the shell 1; a pressure gauge 23 is arranged on the heat-conducting oil tank 3; the pressure gauge 23 is electrically connected to the control and data collection module 11. The utility model discloses a set up the shock resistance of this polyurethane insulating tube heat conduction coefficient survey device of buffer reinforcing, reduce the operating requirement to the measurement personnel to reduce intensity of labour, secondly, realize the oil and the oil return of conduction oil through setting up pipe-line system, can effectively eliminate two axial heat losses of tip of the polyurethane insulating tube 7 that awaits measuring, improve the survey precision.
In a specific example of the present invention, a first temperature detection module 14 is disposed on the heat conducting oil heating device 4; one end of the second oil outlet pipe 8, which is close to the polyurethane heat-insulating pipe 7 to be detected, is respectively provided with a second temperature detection module 18; a third temperature detection module 19 is arranged at one end of the first oil return pipe 9 close to the polyurethane heat-insulating pipe 7 to be detected; the first temperature detection module 14, the second temperature detection module 18 and the third temperature detection module 19 are respectively electrically connected with the control and data collection module 11; the second oil return pipe 10 comprises a main pipe, a first branch pipe and a second branch pipe; the first branch pipeline and the second branch pipeline are respectively communicated with the main pipeline; the first branch pipeline is arranged at the oil outlet end of the polyurethane heat-insulating pipe 7 to be detected; the second branch pipe is arranged at the oil inlet end of the polyurethane heat-insulating pipe 7 to be tested; a second oil return valve 21 is arranged on the first branch pipeline; and a third oil return valve 22 is arranged on the second branch pipe. The control and data collection module 11 can automatically collect data detected by each temperature detection module, the heat conduction oil flowing through the polyurethane heat preservation pipe 7 to be detected can be circulated back to the heat conduction oil heating device 4 by arranging the second oil return pipe 10, the temperatures of the corresponding positions at the two ends of the polyurethane heat preservation pipe 7 to be detected are detected by the second temperature detection module 18 and the third temperature detection module 19, when the values detected by the second temperature detection module 18 and the third temperature detection module 19 are consistent, the axial heat loss of the two end parts of the polyurethane heat preservation pipe 7 to be detected is eliminated, and all heat can be transmitted in the radial direction in the subsequent steps.
In some examples of the present invention, the first oil outlet pipe 5 is provided with a first oil pump 12 and a first oil outlet valve 13; the first oil pump 12 and the first oil outlet valve 13 are controlled by the control and data collection module 11; the second oil outlet pipe 8 is provided with a second oil pump 16 and a second oil outlet valve 17; the second oil pump 16 and the second oil outlet valve 17 are controlled by the control and data collection module 11; a first oil return valve 20 is arranged on the first oil return pipe 9; the first oil return valve 20 is controlled by the control and data collection module 11, and controls each valve and each oil pump through the control and data collection module 11, so that the automation degree is high, and the operation is more convenient.
In some examples of the present invention, the buffer device comprises a limiting plate 25 disposed at the bottom of the supporting plate 2 and a fixing block 24 disposed at the bottom of the casing 1; a limiting groove 27 is formed in the side end of the fixing block 24; the bottom of the limiting plate 25 is provided with a limiting block 26; the limiting block 26 is arranged in the limiting groove 27 in a sliding manner; the upper surface of the fixing block 24 is recessed to form a groove; a buffer spring 28 is arranged between the fixed block 24 and the support plate 2; the buffer spring 28 is arranged in the groove; the utility model discloses a set up the shock resistance of this polyurethane insulating tube heat conduction coefficient survey device of buffer reinforcing, reduce the operating requirement to the measurement personnel to reduce intensity of labour.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "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, schematic representations of the above terms do not necessarily 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.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A device for measuring the heat conduction coefficient of a polyurethane heat-insulating pipe comprises a shell; the method is characterized in that: a support plate is arranged inside the shell; symmetrical buffer devices are arranged between the supporting plate and the bottom of the shell; the supporting plate is provided with a heat conduction oil tank and a heat conduction oil heating device; an oil outlet of the heat-conducting oil tank is communicated with an oil inlet of the heat-conducting oil heating device through a first oil outlet pipe; the top of the shell is provided with a supporting block for fixing a polyurethane thermal insulation pipe to be detected; an oil outlet of the heat-conducting oil heating device is communicated with an oil inlet of the polyurethane heat-insulating pipe to be detected through a second oil outlet pipe; an oil inlet of the heat-conducting oil tank is communicated with an oil outlet of the polyurethane heat-insulating pipe to be tested through a first oil return pipe; a second oil return pipe is communicated between the polyurethane heat-insulating pipe to be detected and the heat-conducting oil heating device; and a control and data collection module is installed at the inner top of the shell.
2. The device for determining the heat conduction coefficient of the polyurethane heat preservation pipe according to claim 1, wherein a first temperature detection module is arranged on the heat conduction oil heating device; one end of the second oil outlet pipe, which is close to the polyurethane heat-insulating pipe to be detected, is respectively provided with a second temperature detection module; a third temperature detection module is arranged at one end of the first oil return pipe, which is close to the polyurethane heat-insulating pipe to be detected; the first temperature detection module, the second temperature detection module and the third temperature detection module are respectively electrically connected with the control and data collection module.
3. The apparatus for measuring the thermal conductivity of a polyurethane thermal insulation pipe according to claim 2, wherein the first oil outlet pipe is provided with a first oil pump and a first oil outlet valve; the first oil pump and the first oil outlet valve are controlled by the control and data collection module.
4. The apparatus for measuring the thermal conductivity of a polyurethane thermal insulation pipe according to claim 3, wherein a second oil pump and a second oil outlet valve are provided on the second oil outlet pipe; and the second oil pump and the second oil outlet valve are controlled by the control and data collection module.
5. The device for measuring the heat conduction coefficient of the polyurethane thermal insulation pipe according to claim 4, wherein a first oil return valve is arranged on the first oil return pipe; the first oil return valve is controlled by the control and data collection module.
6. The apparatus for determining the heat conduction coefficient of a polyurethane thermal insulation pipe according to claim 5, wherein the second oil return pipe comprises a main pipe, a first branch pipe and a second branch pipe; the first branch pipeline and the second branch pipeline are respectively communicated with the main pipeline; the first branch pipeline is arranged at the oil outlet end of the polyurethane thermal insulation pipe to be detected; the second branch pipe is arranged at the oil inlet end of the polyurethane heat-insulating pipe to be tested.
7. The apparatus for measuring the thermal conductivity of a polyurethane thermal insulation pipe according to claim 6, wherein the first branch pipe is provided with a second oil return valve; and a third oil return valve is arranged on the second branch pipe.
8. The apparatus for measuring the thermal conductivity of a polyurethane thermal insulation pipe according to claim 1, wherein a pressure gauge is provided on the thermal conductivity oil tank; the pressure gauge is electrically connected with the control and data collection module.
9. The device for measuring the heat conduction coefficient of the polyurethane heat-preservation pipe as claimed in claim 1, wherein the buffer device comprises a limiting plate arranged at the bottom of the supporting plate and a fixed block arranged at the bottom in the shell; a limiting groove is formed in the side end of the fixing block; the limiting block is arranged at the bottom of the limiting plate; the limiting block is arranged in the limiting groove in a sliding mode.
10. The device for measuring the heat conduction coefficient of the polyurethane heat preservation pipe as claimed in claim 9, wherein a groove is formed by recessing the upper surface of the fixing block; a buffer spring is arranged between the fixed block and the supporting plate; the buffer spring is arranged in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120787699.6U CN214668737U (en) | 2021-04-16 | 2021-04-16 | Polyurethane insulating tube heat conduction coefficient measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120787699.6U CN214668737U (en) | 2021-04-16 | 2021-04-16 | Polyurethane insulating tube heat conduction coefficient measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214668737U true CN214668737U (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120787699.6U Active CN214668737U (en) | 2021-04-16 | 2021-04-16 | Polyurethane insulating tube heat conduction coefficient measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214668737U (en) |
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2021
- 2021-04-16 CN CN202120787699.6U patent/CN214668737U/en active Active
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