CN211179603U

CN211179603U - Device for measuring heat preservation effect of directly-buried heat preservation pipe under buried condition

Info

Publication number: CN211179603U
Application number: CN201922138993.XU
Authority: CN
Inventors: 徐斌; 钊文科; 吴旭君; 徐雷军
Original assignee: Jiangsu Dewei Energy Saving Co ltd
Current assignee: Jiangsu Dewei Energy Saving Group Co ltd
Priority date: 2019-12-04
Filing date: 2019-12-04
Publication date: 2020-08-04
Anticipated expiration: 2029-12-04

Abstract

The utility model relates to a device for measuring the heat preservation effect of a directly-buried heat preservation pipe under the buried condition, which comprises a sand ground consisting of a brick-concrete structure, wherein the two sides of the sand ground are opened and are packaged through an upper sealing plate and a lower sealing plate, an experimental directly-buried pipe is placed at the opening part of the lower sealing plate, and grooves formed by angle steels are arranged at the bottoms and the side edges of the two sides of the opening of the sand ground; the experimental direct-buried pipe comprises an outer pipe and an inner pipe, wherein a heating pipe is arranged in the center of the inner pipe and is supported by a heating pipe supporting frame, and two groups of thermocouples are arranged on two sides of the middle of the outer pipe along the circumferential direction to serve as temperature measuring points; one end of the sand is provided with a pre-buried screw conveyor, and the sand pile and the sand pool are quickly transmitted by matching the lifting screw conveyor and the transferring screw conveyor, so that the experiment direct-buried pipe is convenient to replace. The utility model discloses simple structure, reasonable in design, convenient to use, but the actual motion operating mode of accurate simulation directly buried pipe, and simple to operate, it is easy to change, has good effect to the capability test of directly buried pipe.

Description

Device for measuring heat preservation effect of directly-buried heat preservation pipe under buried condition

[ technical field ] A method for producing a semiconductor device

The utility model relates to a heat preservation testing arrangement especially relates to a measure device of direct-burried insulating tube heat preservation effect under burying ground condition.

[ background of the invention ]

Along with the enhancement of people's consciousness on energy conservation and environmental protection, the requirement for comprehensive utilization degree of energy is higher and higher, and in the heat supply field, centralized heat supply has become the mainstream form, and a high-efficiency heat supply network system is correspondingly needed, wherein the direct-buried heat preservation pipe has the advantages of good heat preservation effect, no influence on urban environment, long service life and the like, and is increasingly widely applied in the heat supply network construction field.

The design of the direct-buried heat-insulating pipe has many influence factors, reliable results are difficult to obtain by completely theoretical calculation, and verification needs to be carried out by combining experiments, but the existing direct-buried pipe heat-insulating test method can only test single performance on site. Or the test can only be carried out under the non-underground condition, the accurate data of the heat preservation effect under the underground condition cannot be well obtained, and the support for the heat preservation design is insufficient.

[ Utility model ] content

The utility model aims to provide a: aiming at the defects and shortcomings of the prior art, the device for measuring the heat insulation effect of the directly-buried heat insulation pipe under the buried condition is simple in structure, reasonable in design and convenient to use.

In order to achieve the above object, the utility model adopts the following technical scheme: a device for measuring the heat insulation effect of a directly-buried heat insulation pipe under a buried condition comprises a sand ground consisting of a brick-concrete structure, wherein openings are formed in two sides of the sand ground, the sand ground is packaged through an upper sealing plate and a lower sealing plate, an experimental directly-buried pipe is placed at the opening of the lower sealing plate, and grooves formed by angle steels are formed in the bottoms and the side edges of two sides of the sand ground opening; the experimental direct-buried pipe comprises an outer pipe and an inner pipe, wherein a heating pipe is arranged in the center of the inner pipe and is supported by a heating pipe supporting frame, and two groups of thermocouples are arranged on two sides of the middle of the outer pipe along the circumferential direction to serve as temperature measuring points; one end of the sand is provided with a pre-buried screw conveyor, and the sand pile and the sand pool are quickly transmitted by matching the lifting screw conveyor and the transferring screw conveyor, so that the experiment direct-buried pipe is convenient to replace.

The utility model discloses in: the experimental direct-buried pipe is composed of straight pipe sections with brackets on two sides, and comprises an outer pipe and an inner pipe, wherein two sides of the inner pipe extend to place a heating pipe sealing plate.

The utility model discloses in: the heating pipe consists of a heating rod with a reinforcing sleeve, and a temperature measuring point is arranged on the outer side of the heating pipe, so that the heating pipe can be prevented from being damaged due to overhigh temperature while the heating is ensured to reach a preset value; the diameter of the heating pipe is smaller than that of the inner pipe of the experimental direct-buried pipe, and two ends of the heating pipe are sealed by heating pipe sealing plates.

After the structure is adopted, the utility model discloses beneficial effect does: the utility model discloses simple structure, reasonable in design, convenient to use, but the actual motion operating mode of accurate simulation directly buried pipe, and simple to operate, it is easy to change, has good effect to the capability test of directly buried pipe.

[ description of the drawings ]

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, do not constitute a limitation of the invention, and in which:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the combination of sand and experimental buried pipe;

FIG. 3 is a perspective view of the combination of sand and experimental buried pipe of the present invention;

fig. 4 is a top view of the present invention;

FIG. 5 is a cross-sectional view B-B of FIG. 4;

fig. 6 is a diagram of the transportation of the sand pile to the sand in the present invention.

In the figure: 1. sand; 2. an outer tube; 3. an inner tube; 4. an upper sealing plate; 5. a lower sealing plate; 6. heating a tube; 7. a heating pipe sealing plate; 8. a heating pipe support frame; 9. an experimental directly-buried pipe bracket; 10. pre-burying a spiral conveyor; 11. lifting the screw conveyor; 12. transfer screw conveyor, 13. sand pile.

[ detailed description ] embodiments

The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and the description are only for the purpose of explanation, but not for the purpose of limitation.

As shown in fig. 1-5, a measure device of buried condition directly-buried insulating tube thermal insulation effect down, include sand 1 that comprises brick-concrete structure, the both sides opening of sand 1 to encapsulate through last shrouding 4 and

lower shrouding

5, 5 opening parts of lower shrouding place experiment directly-buried pipe, during concrete implementation, put into lower shrouding 5 earlier, then put into experiment directly-buried pipe, put into last shrouding 4 again, shrouding and directly-buried pipe can use the driving hoist and mount, simple to operate.

The bottom and the side of the opening at the two sides of the sand 1 are provided with grooves formed by angle steel. The sand pool 1 is designed according to the maximum diameter of the experimental directly-buried pipe, enough space is reserved on two sides and the upper part and the lower part, the space is not less than 1 meter, and the accuracy of a simulation experiment is guaranteed.

The experimental direct-buried pipe comprises an outer pipe 2 and an inner pipe 3, a heating pipe 6 is arranged in the center of the inner pipe 3 and is supported by a heating pipe supporting frame 8, and two groups of thermocouples are arranged on two sides of the middle of the outer pipe 2 along the circumferential direction and are used as temperature measuring points; one end of the sand 1 is provided with an embedded screw conveyor 10, and the lifting screw conveyor 11 and the transfer screw conveyor 12 are matched for use, so that the transmission between the sand pile 13 and the sand pool 1 is realized rapidly, and the replacement of the experimental directly-embedded pipe is facilitated.

The experiment direct-buried pipe comprises a straight pipe section with supports (experiment direct-buried pipe supports 9) on two sides, and comprises an outer pipe 2 and an inner pipe 3, wherein two sides of the inner pipe 3 extend to place heating pipe sealing plates 7. The heating pipe 6 consists of a heating rod with a reinforcing sleeve, temperature measuring points are arranged on the outer side of the heating pipe 6, the heating pipe is not deformed under the condition that only two sides of the heating pipe are technically supported in the length direction, the inner part is guaranteed to have no thermal bridge phenomenon, the uniform distribution of the temperature in the heating pipe is realized, the temperature measuring points are arranged on the outer sides of the heating pipe and the experimental directly-buried pipe, and the heating pipe 6 can be prevented from being damaged due to overhigh temperature when the heating pipe reaches a preset value; the diameter of the heating pipe 6 is smaller than that of the inner pipe 3 of the experimental direct-buried pipe, and the two ends of the heating pipe are sealed by heating pipe sealing plates 7.

During testing, a power supply of the heating pipe is started to heat, the temperature is stabilized at a required testing temperature point under the regulation of the temperature control system, then the temperature distribution of the outer pipe of the experimental direct-buried pipe is observed, and the heat preservation effect is calculated according to a testing result.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. The utility model provides a measure device of direct-burried insulating tube heat preservation effect under burying ground condition which characterized in that: the sand land comprises a sand land formed by a brick-concrete structure, wherein openings are formed in two sides of the sand land, the sand land is packaged through an upper sealing plate and a lower sealing plate, an experimental buried pipe is placed at the opening of the lower sealing plate, and grooves formed by angle steel are formed in the bottoms and the side edges of the two sides of the opening of the sand land; the experimental direct-buried pipe comprises an outer pipe and an inner pipe, wherein a heating pipe is arranged in the center of the inner pipe and is supported by a heating pipe supporting frame, and two groups of thermocouples are arranged on two sides of the middle of the outer pipe along the circumferential direction to serve as temperature measuring points; one end of the sand is provided with a pre-buried screw conveyor, and the sand pile and the sand pool are quickly transmitted by matching the lifting screw conveyor and the transferring screw conveyor, so that the experiment direct-buried pipe is convenient to replace.

2. The device for measuring the heat preservation effect of the directly buried heat preservation pipe under the buried condition according to claim 1, is characterized in that: the experimental direct-buried pipe is composed of straight pipe sections with brackets on two sides, and comprises an outer pipe and an inner pipe, wherein two sides of the inner pipe extend to place a heating pipe sealing plate.

3. The device for measuring the heat preservation effect of the directly buried heat preservation pipe under the buried condition according to claim 1, is characterized in that: the heating pipe consists of a heating rod with a reinforcing sleeve, and a temperature measuring point is arranged on the heating pipe, so that the heating pipe can be prevented from being damaged due to overhigh temperature while the heating is ensured to reach a preset value; the diameter of the heating pipe is smaller than that of the inner pipe of the experimental direct-buried pipe, and two ends of the heating pipe are sealed by heating pipe sealing plates.