Heat insulation and heat preservation thermal fluid energy-saving conveying pipeline

Abstract

The utility model discloses a thermal insulation thermal fluid energy-saving conveying pipeline, which relates to the technical field of thermal insulation pipes and comprises an inner fluid pipe, a middle pipe body is arranged outside the inner fluid pipe, a thermal insulation cavity is arranged between the inner fluid pipe and the middle pipe body, a thermal insulation medium is filled in the thermal insulation cavity, and the thermal insulation medium is filled in the thermal insulation cavity. An outer pipe body is arranged outside the middle pipe body, a heat preservation layer is arranged between the middle pipe body and the outer pipe body, the heat preservation layer is composed of an aluminum silicate needled carpet, a polyurethane foaming material and a micropore calcium silicate heat preservation layer, and the micropore calcium silicate heat preservation layer is connected to the outer portion of the middle pipe body in a sleeving mode. The external air environment of the inner fluid pipe is separated through the two heat preservation technologies of the heat preservation cavity with the heat preservation medium and the heat preservation layer, heat loss of the inner fluid pipe is reduced, and therefore the energy-saving performance of the pipeline is improved, the more efficient energy-saving effect is achieved in the transmission process, energy waste is reduced, and the energy-saving and environment-friendly effects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation pipes, in particular to a heat-insulating and heat-preserving hot fluid energy-saving conveying pipeline. Background Art

[0002] Thermal insulation and heat preservation hot fluid energy-saving transmission pipelines are widely used in the industrial and energy fields, especially in situations where heat energy needs to be transmitted or the temperature of the fluid needs to be kept stable. At present, in industrial enterprises using steam and hot water in production, and in urban centralized heating and heating projects, the transmission pipelines are composed of a thermal fluid steel pipe frame with an outer insulation sleeve wrapped with glass cloth, and a high-density polyethylene outer protective pipe, polyurethane rigid foam as the insulation layer and a thermal fluid steel pipe. The three are combined into a tight whole; although such a structure can achieve a certain thermal insulation effect, the loss of heat energy during the transmission process is still relatively large. In order to reduce the loss of heat during the transmission process, improve the energy-saving performance of the pipeline, reduce energy waste, and achieve the purpose of energy saving and environmental protection, the utility model proposes a thermal insulation and heat preservation hot fluid energy-saving transmission pipeline. Utility Model Content

[0003] Technical problems solved

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a heat-insulating and heat-preserving hot fluid energy-saving conveying pipeline.

[0005] Technical Solution

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an insulated and heat-preserving hot fluid energy-saving transmission pipeline, comprising an inner fluid pipe, an intermediate pipe body is arranged outside the inner fluid pipe, an insulation cavity is provided between the inner fluid pipe and the intermediate pipe body, the interior of the insulation cavity is filled with an insulation medium, an outer pipe body is arranged outside the intermediate pipe body, and an insulation layer is arranged between the intermediate pipe body and the outer pipe body. The two insulation technologies of the insulation cavity with insulation medium and the insulation layer are used to separate the inner fluid pipe from the external air environment, reducing the heat loss of the inner fluid pipe, thereby improving the energy-saving performance of the pipeline, thereby achieving more efficient energy-saving effects during the transmission process, reducing energy waste, and achieving energy saving and environmental protection effects. The insulation medium inside the insulation cavity of the present application can be selected in a variety of ways. It can be a medium of gas materials, such as carbon dioxide, nitrogen, etc., or a medium of liquid materials such as water, silicone insulation liquid, etc. It can be selected in a variety of ways according to the use cost and insulation requirements, with a wider range of applications and stronger practicality.

[0007] Preferably, the insulation layer is composed of an aluminum silicate needle-punched blanket, a polyurethane foam material and microporous calcium silicate insulation. The microporous calcium silicate insulation is sleeved on the outside of the intermediate tube body, the polyurethane foam material is filled in the cavity between the microporous calcium silicate insulation and the intermediate tube body, and the aluminum silicate needle-punched blanket is coated on the outside of the microporous calcium silicate insulation.

[0008] Preferably, the warm medium is a gas material or a liquid material.

[0009] Preferably, a compensating pipe and a pressure relief pipe are fixedly connected to the intermediate pipe body, and both the compensating pipe and the pressure relief pipe are communicated with the heat preservation cavity.

[0010] Preferably, valves are provided on both the compensation pipe and the pressure relief pipe.

[0011] Preferably, the thermal insulation medium is a solid material, and the solid material is a mixture of one or more of glass wool, supercritical aerogel, expanded perlite, expanded vermiculite rock wool or slag wool.

[0012] Preferably, the outer tube body is made of galvanized steel plate, ordinary thin steel plate or aluminum alloy plate, and the outside of the outer tube body is coated with anti-corrosion paint, which is heat-resistant anti-rust paint or resin paint.

[0013] Preferably, radiation-proof paint is sprayed on the cavity wall of the thermal insulation cavity.

[0014] Beneficial effects:

[0015] Compared with the existing technology, the heat-insulating and heat-preserving hot fluid energy-saving transmission pipeline has the following beneficial effects:

[0016] The utility model utilizes two insulation technologies, namely an insulation cavity with an insulation medium and an insulation layer, to separate the internal fluid pipe from the external air environment, thereby reducing heat loss in the internal fluid pipe, thereby improving the energy-saving performance of the pipeline, thereby achieving more efficient energy-saving effects during the transmission process, reducing energy waste, and thus achieving energy-saving and environmental protection effects. The insulation medium inside the insulation cavity of the present application can be selected in a variety of ways. It can be a medium made of gas materials, such as carbon dioxide, nitrogen, etc., or a medium made of liquid materials such as water, silicone insulation liquid, etc., and can be selected in a variety of ways according to the use cost and insulation requirements. The scope of application is wider and the practicality is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the utility model;

[0020] Figure 3 It is a schematic structural diagram of the utility model in a side view.

[0021] In the picture:

[0022] 1. Inner fluid pipe; 2. Insulation cavity; 3. Intermediate pipe body; 4. Insulation layer; 5. Outer pipe body; 401. Aluminum silicate needle-punched blanket; 402. Polyurethane foam material; 403. Microporous calcium silicate insulation; 301. Compensating pipe; 302. Pressure relief pipe; 303. Valve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 3 As shown, the utility model provides a technical solution: an insulated and heat-preserving hot fluid energy-saving conveying pipeline, comprising an inner fluid pipe 1, an intermediate pipe body 3 is arranged on the outside of the inner fluid pipe 1, an insulation cavity 2 is provided between the inner fluid pipe 1 and the intermediate pipe body 3, the interior of the insulation cavity 2 is filled with an insulation medium, an outer pipe body 5 is provided on the outside of the intermediate pipe body 3, and an insulation layer 4 is provided between the intermediate pipe body 3 and the outer pipe body 5. The two insulation technologies of the insulation cavity 2 with insulation medium and the insulation layer 4 separate the inner fluid pipe 1 from the external air environment, reduce the heat loss of the inner fluid pipe 1, thereby improving the energy-saving performance of the pipeline, thereby achieving more efficient energy-saving effects during the transmission process, reducing energy waste, and thus achieving energy-saving and environmental protection effects.

[0025] Please pay attention to Figure 2 The insulation layer 4 is composed of an aluminum silicate needle-punched blanket 401, a polyurethane foam material 402 and a microporous calcium silicate insulation 403. The microporous calcium silicate insulation 403 is sleeved on the outside of the intermediate tube body 3. The polyurethane foam material 402 is filled in the cavity between the microporous calcium silicate insulation 403 and the intermediate tube body 3. The aluminum silicate needle-punched blanket 401 is coated on the outside of the microporous calcium silicate insulation 403. When in use, the insulation layer of the multi-layer structure composed of the aluminum silicate needle-punched blanket 401, the polyurethane foam material 402 and the microporous calcium silicate insulation 403 can have a good insulation effect, thereby improving the practicality of the device.

[0026] The insulation medium inside the insulation cavity 2 of the present application can be selected in a variety of ways. It can be a medium of gas material, such as carbon dioxide, nitrogen, etc., or a medium of liquid material such as water, silicone insulation liquid, etc., and can be selected in a variety of ways according to the use cost and insulation requirements. The scope of application is wider and the practicality is stronger. The insulation medium of gas material includes carbon dioxide, nitrogen, etc., and the insulation medium of liquid material includes water, silicone insulation liquid, polyurethane insulation liquid, etc. When the insulation medium is a gas material or a liquid material, please pay attention to Figure 1 and Figure 2 A compensation tube 301 and a pressure relief tube 302 are fixedly connected to the middle tube body 3. Both the compensation tube 301 and the pressure relief tube 302 are connected to the heat preservation cavity 2, and valves 303 are provided on the compensation tube 301 and the pressure relief tube 302. When in use, the heat preservation medium can be replenished into the heat preservation cavity 2 through the compensation tube 301, and the pressure relief tube 302 plays a role in balancing the internal and external pressures, thereby facilitating the replenishment of the heat preservation medium into the heat preservation cavity 2. The valve 303 is set to control the switching of the compensation tube 301 and the pressure relief tube 302.

[0027] The heat-insulating medium is a solid material, and the solid material is a mixture of one or more of glass wool, supercritical aerogel, expanded perlite, expanded vermiculite rock wool or slag wool.

[0028] The external tube body 5 in this application is made of galvanized steel plate, ordinary thin steel plate or aluminum alloy plate. The outside of the external tube body 5 is coated with anti-corrosion paint, which is heat-resistant anti-rust paint or resin paint. The cavity wall of the insulation cavity 2 is sprayed with anti-radiation paint.

[0029] Working principle: The internal fluid pipe 1 is separated from the external air environment by two insulation technologies, namely an insulation cavity 2 with an insulation medium and an insulation layer 4. When in use, the insulation cavity 2 is filled with insulation medium, which can improve the insulation effect of the pipeline and achieve the purpose of energy saving. In combination with the insulation layer 4 with a multi-layer structure composed of an aluminum silicate needle-punched blanket 401, a polyurethane foam material 402 and microporous calcium silicate insulation 403, the insulation effect of the pipeline can be further improved on the above basis, and the energy saving effect can be further improved, thereby reducing the heat loss of the internal fluid pipe 1. The insulation medium inside the insulation cavity 2 can be selected in a variety of ways, and can be a medium made of gas materials, such as carbon dioxide, nitrogen, etc., or a medium made of liquid materials such as water, silicone insulation liquid, etc. It can be selected in a variety of ways according to the use cost and insulation requirements, with a wider range of applications and stronger practicality.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat-insulating and heat-retaining hot fluid energy-saving conveying pipeline, comprising an inner fluid pipe (1), characterized in that: An intermediate tube body (3) is arranged outside the inner fluid tube (1), a heat-insulating cavity (2) is provided between the inner fluid tube (1) and the intermediate tube body (3), the interior of the heat-insulating cavity (2) is filled with a heat-insulating medium, an outer tube body (5) is arranged outside the intermediate tube body (3), and a heat-insulating layer (4) is provided between the intermediate tube body (3) and the outer tube body (5).

2. The heat-insulating and heat-preserving hot fluid energy-saving conveying pipeline according to claim 1, characterized in that: The thermal insulation layer (4) is composed of an aluminum silicate needle-punched blanket (401), a polyurethane foam material (402) and a microporous calcium silicate thermal insulation (403); the microporous calcium silicate thermal insulation (403) is sleeved on the outside of the intermediate tube (3); the polyurethane foam material (402) is filled in the cavity between the microporous calcium silicate thermal insulation (403) and the intermediate tube (3); and the aluminum silicate needle-punched blanket (401) is coated on the outside of the microporous calcium silicate thermal insulation (403).

3. The heat-insulating and heat-preserving hot fluid energy-saving conveying pipeline according to claim 2, characterized in that: The heat-insulating medium is a gas material or a liquid material.

4. The heat-insulating and heat-retaining hot fluid energy-saving conveying pipeline according to claim 3, characterized in that: A compensation pipe (301) and a pressure relief pipe (302) are fixedly connected to the intermediate pipe body (3), and both the compensation pipe (301) and the pressure relief pipe (302) are in communication with the heat preservation cavity (2).

5. The heat-insulating and heat-retaining hot fluid energy-saving conveying pipeline according to claim 4, characterized in that: The compensating pipe (301) and the pressure relief pipe (302) are both provided with valves (303).

6. The heat-insulating and heat-retaining hot fluid energy-saving conveying pipeline according to claim 2, characterized in that: The heat-insulating medium is a solid material, and the solid material is a mixture of one or more of glass wool, supercritical aerogel, expanded perlite, expanded vermiculite rock wool or slag wool.

7. The heat-insulating and heat-retaining hot fluid energy-saving delivery pipeline according to claim 1, characterized in that: The outer tube body (5) is made of galvanized steel plate, ordinary thin steel plate or aluminum alloy plate. The outer surface of the outer tube body (5) is coated with anti-corrosion paint, which is heat-resistant anti-rust paint or resin paint.

8. The heat-insulating and heat-retaining hot fluid energy-saving delivery pipeline according to claim 1, characterized in that: The cavity wall of the heat-insulating cavity (2) is sprayed with radiation-proof paint.

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