WO2018157468A1

WO2018157468A1 - Method for manufacturing insulation profile

Info

Publication number: WO2018157468A1
Application number: PCT/CN2017/082932
Authority: WO
Inventors: 余远明; 王明; 曲绍鹤; 邹树平; 王丽利; 张庆堂; 江渝
Original assignee: 芜湖美的厨卫电器制造有限公司; 美的集团股份有限公司
Priority date: 2017-02-28
Filing date: 2017-05-03
Publication date: 2018-09-07
Also published as: CN108506648A; CN108506648B

Abstract

A method for manufacturing an insulation profile. The insulation profile (100) comprises a plurality of microbubbles (20) and at least one protective layer (10) wrapping the plurality of microbubbles (20). The protective layer (10) is provided with an air inlet hole (11) and an air exhaust hole (12). The microbubbles (20) are provided with openings. When the insulation profile (100) is inflated, first air in the microbubbles (20) is drawn through the air exhaust hole (12), then after a first preset period of time, the air exhaust hole (12) is sealed, the air inlet hole (11) is opened to inflate the microbubbles (20) with an insulation gas, and finally, after a second preset period of time, the inflation is stopped, the air inlet hole (11) is sealed to complete inflation. According to the manufacturing method, the air in the insulation profile is completely drawn out, and is then filled with an insulation gas with low coefficient of thermal conductivity, so that the thermal conductivity of the insulation profile is reduced, and the internal and external pressures of the insulation profile are kept in balance, so that the possibility that the performance of the insulation profile is weakened is lowered.

Description

Insulation profile manufacturing method

Technical field

The invention relates to the technical field of electric water heaters, in particular to a method for manufacturing thermal insulation profiles.

Background technique

Currently, vacuum insulation panels (Vacuum Insulation) Panel, referred to as VIP), is gradually applied to the field of thermal insulation materials for electric water heaters based on its lower thermal conductivity (8mW/(m•K)), but it will be fixed because it needs to be bent for a long time when wrapping the inner liner of the water heater. To a lesser extent, the reliability of the VIP is lowered, and the internal pressure of the VIP is lower than the pressure difference of the external atmospheric pressure, gas permeation occurs, and mechanical damage is caused, and the thermal conductivity is increased, thereby affecting the thermal insulation performance of the electric water heater.

Summary of the invention

The main object of the present invention is to provide a method for manufacturing a thermal insulation profile, which aims to manufacture a novel thermal insulation profile for an electric water heater to improve the thermal insulation effect of the electric water heater.

In order to achieve the above object, the present invention provides a method for fabricating a thermal insulation profile, the thermal insulation profile comprising a plurality of microbubbles and at least one protective layer encasing the plurality of microbubbles, the protective layer being provided with an air inlet and a row a pore, the microbubble is formed with an opening, and the manufacturing method comprises the following steps:

Extracting air in the microbubbles through the vent hole;

After the first predetermined time, sealing the vent hole, opening the air inlet hole to fill the microbubble with a heat insulating gas;

After the second predetermined time, the inflation is stopped and the intake port is sealed.

Further, before the step of extracting the air in the microbubbles through the vent hole, the method further includes:

Compressing the insulating gas in an air pump and connecting the air inlet hole;

Adjust the pressure of the air pump to a preset value.

Further, after the step of stopping the inflation after the second preset time, the step of sealing the air inlet hole further includes:

A layer of polyurethane is wrapped on the outer surface of the heat insulating profile.

Further, a gap is formed between the adjacent microbubbles, and the step of extracting the air in the microbubbles through the vent hole is performed, and the following steps are performed:

Air in the gap is drawn through the vent.

Further, after performing the step of sealing the vent hole after the first preset time, opening the air inlet hole to fill the microbubble with the heat insulating gas, the following steps are also performed:

The gap is filled with a heat insulating gas through the air inlet hole.

Further, after the first predetermined time, sealing the vent hole, opening the air inlet hole to fill the micro-bubble with a heat-insulating gas, and simultaneously filling the gap with the heat-insulating gas through the air inlet hole The steps specifically include:

After the first predetermined time of operation of the vacuum pump, detecting whether the microbubbles and the gap are completely vacuumed;

If yes, sealing the vent hole and opening the air inlet hole to fill the microbubbles and the gap with a heat insulating gas;

If not, the vacuum pump is controlled to continue to operate until the microbubbles and gaps are completely vacuumed.

Further, after the second preset time, the step of stopping the inflation and sealing the air inlet hole specifically includes:

After the second predetermined time of operation of the air pump, detecting whether the microbubbles and the protective layer reach a set full pressure value;

If yes, stop inflating and seal the air inlet hole;

If not, increase the inflation pressure until the microbubbles and the protective layer reach the set full pressure value.

Further, the thermal conductivity of the insulating gas is lower than 25 mW / (m · K), the heat insulating gas is at least one of argon gas, helium gas, neon gas, carbon dioxide, cyclopentane, and isopentane.

Further, the calculation formula of the first preset time is T1=(V1+V2)/Q1, where T1 is the first preset time, V1 is the total volume of the microbubbles, V2 is the total volume of the gap, and Q1 is the pumping Gas rate, the pumping rate is 30-100 L/min.

Further, the calculation formula of the second preset time is T2=(V1+V2)/Q2, where T2 is the second preset time, V1 is the total volume of the microbubbles, V2 is the total volume of the gap, and Q2 is the inflated The gas flow rate is 30-100 L/min.

Further, the microbubbles and the protective layer have a full pressure value of 0.1 MPa.

Further, the pressure of the air pump is preset to be 0.4-1 MPa, and the thermal conductivity of the heat insulating gas is less than 25 mW/(m •K).

Further, the material of the heat insulating material is one or two or more layers of a plastic film, a metal foil composite plastic film, and a metal composite plate coated with a metal layer.

Further, the insulating profile is also filled with nanopowder and/or glass fibers.

The method for manufacturing the thermal insulation profile of the present invention is applied to a novel thermal insulation profile, the thermal insulation profile comprising a plurality of microbubbles and at least one protective layer enclosing the plurality of microbubbles, the protective layer being provided with an air inlet hole and a vent hole, the microbubble is formed with an opening, and when the heat insulating profile is inflated, firstly, an air pumping device such as a vacuum pump is used to extract air in the microbubble through the vent hole, and then in the first preset After the time, that is, after the predicted air is completely extracted, the vent hole is sealed, the air inlet hole is opened to fill the micro-bubble with heat-insulating gas, and finally, after the second predetermined time, that is, according to the total of the micro-bubbles After the time when the volume of the predetermined heat insulating gas can be completely filled, the inflation is stopped, the air inlet hole is sealed, and the heat insulating profile is inflated. In the manufacturing method of the invention, after the air in the heat insulating profile is completely evacuated, the heat insulating gas with low thermal conductivity is charged, the thermal conductivity of the heat insulating profile is lowered, the internal and external pressure of the heat insulating profile is balanced, and the performance of the heat insulating profile is lowered. The possibility of weakness.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and those skilled in the art can obtain other drawings according to the structures shown in the drawings without any creative work.

1 is a flow chart of an embodiment of a method for fabricating a thermal insulation profile of the present invention;

2 is a specific flowchart of step S40a and step S40b in FIG. 1;

3 is a specific flowchart of step S50 in FIG. 1;

Figure 4 is a schematic view showing the structure of an embodiment of the heat insulating profile of the present invention.

Description of the reference numerals:

标号Label	名称name	标号Label	名称name
100100	保温型材Insulation profile	1212	排气孔Vent
1010	防护层Protective layer	2020	微气泡Microbubble
1111	进气孔Air intake

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back, ...) in the embodiments of the present invention are only used to explain between components in a certain posture (as shown in the drawing). Relative positional relationship, motion situation, etc., if the specific posture changes, the directional indication also changes accordingly.

In addition, the descriptions of "first", "second", and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.

The invention provides a method for manufacturing a heat preservation profile.

Referring to Figure 1, there is shown a flow chart of an embodiment of a method for fabricating a thermal insulation profile of the present invention.

In this embodiment, the thermal insulation profile includes a plurality of microbubbles and at least one protective layer enclosing the plurality of microbubbles, the protective layer is provided with an air inlet hole and a vent hole, and the microbubbles are formed with The opening method comprises the following steps:

S30a: extracting air in the microbubbles through the vent hole;

S30b: extracting air in the gap through the vent hole;

S40a: after the first preset time, sealing the vent hole, opening the air inlet hole to fill the microbubble with a heat insulating gas;

S40b: charging the gap into the gap through the air inlet hole;

S50: After the second preset time, the inflation is stopped, and the air inlet hole is sealed.

Referring to FIG. 4, in the present embodiment, the heat insulating profile 100 includes a protective layer 10. In other embodiments, the protective layer 10 may be superposed by a plurality of protective layers 10, and the protective layer 10 wraps a plurality of micro layers. In the bubble 20, an opening (not shown) is formed in each of the microbubbles 20 to facilitate the charging of the heat insulating gas, and in order to facilitate the air pressure adjustment of the heat insulating profile 100, the removal of the mixed air, and the filling of the heat insulating gas, etc. The protective layer 10 is further provided with an air inlet hole 11 for facilitating inflation and a vent hole 12 for air suction.

Since the microbubbles 20 retain or are filled with more air during the molding of the heat insulating profile 100, if they are not extracted, the thermal insulation performance of the thermal insulation profile 100 may be seriously affected, so after the thermal insulation profile 100 is molded When inflating it, it is necessary to first evacuate the air in the microbubbles 20 from the vent hole 11 by using a vacuum pump or other air suction means to keep the vacuum inside the microbubbles 20 before the heat insulating gas is charged. status.

Further, referring to FIGS. 1 and 4, since a gap is formed between the adjacent microbubbles 20, and the gap is also filled with air, the step of extracting the air in the microbubbles 20 through the exhaust holes 12 is performed. At the same time, step S30b is required to extract the air in the gap through the exhaust hole 12, so that the entire heat insulating profile 100 is in a vacuum state before being filled with the heat insulating gas.

After the air in the gap formed between the microbubbles 20 and the microbubbles 20 is continuously extracted through the exhaust holes 12 for a first predetermined time, the exhaust holes 12 are sealed for the first preset time. Determined by the total volume of the microbubbles 20 and the total volume of the gap, and the pumping rate of the vacuum pump or other pumping device, the specific formula is T1=(V1+V2)/Q1, where T1 is the first preset time. V1 is the total volume of the microbubbles 20, V2 is the total volume of the gap, Q1 is the pumping rate, and the pumping rate of the vacuum pump or its pumping device is set to 30-100 L/min, so that the heat retaining profile 100 The air can be completely discharged within 10-40 min, and the vent hole 12 is sealed by a seal, which may be a solenoid valve or a manually controlled low pressure valve, which is sealed at the vent hole 12. Thereafter, the air inlet hole 11 is opened, and the air pump is controlled to fill the microbubble 20 with a heat insulating gas having a relatively low thermal conductivity coefficient, and at the same time, step S40b is performed, that is, the air gap is filled into the gap through the air inlet hole 11 a gas so that the entire insulation profile 100 is filled with a heat insulating gas, The average thermal conductivity of the thermal insulation profile 100 is reduced to improve its thermal insulation performance.

After continuously filling the gap formed between the microbubbles 20 and the microbubbles 20 for the second predetermined time of the heat insulating gas, the inflation is stopped, and the air inlet holes 11 are sealed, the second preset time. It is determined by the total volume of the microbubbles, the total volume of the gap, and the gas flow rate of the air pump. The specific formula is T2=(V1+V2)/Q2, where T2 is the second preset time and V1 is the microbubble. The total volume of 20, V2 is the total volume of the gap, Q2 is the inflation gas flow rate, the inflation gas flow rate is 30-100L/min, so that the heat insulating gas can fill the heat insulating profile within 10-40 min, and then pass the seal Sealing the air inlet hole 11, the sealing member may be a solenoid valve or a manually controlled low pressure valve. At this time, the heat insulating profile 100 is completely filled with a heat insulating gas having a relatively low thermal conductivity coefficient, and the heat insulating profile is lowered. Thermal conductivity of 100.

The method for manufacturing the thermal insulation profile of the present invention is applied to a novel thermal insulation profile 100 comprising a plurality of microbubbles 20 and at least one protective layer 10 encasing the plurality of microbubbles 20, the protective layer 10 being disposed There are an air inlet 11 and an exhaust hole 12, and the microbubbles 20 are formed with openings. When the heat insulating profile 100 is inflated, the microbubbles are first extracted through the exhaust holes 12 by an air suction device such as a vacuum pump. The air in 20 is then sealed after the first predetermined time, that is, the time when the predicted air is completely extracted, and the air vent 11 is opened to fill the microbubble 20 with the insulating gas. Finally, After the second predetermined time, that is, after the time during which the predetermined insulating gas can be completely filled according to the total volume of the microbubbles 20, the inflation is stopped, the intake holes 11 are sealed, and the inflation of the heat insulating profile 100 is completed. In the manufacturing method of the present invention, after the air in the heat insulating profile 100 is completely evacuated, the heat insulating gas having a low thermal conductivity is charged, the thermal conductivity of the heat insulating profile 100 is lowered, and the internal and external pressure of the heat insulating profile 100 is balanced, and the heat preservation is lowered. The performance of the profile 100 is weak.

Further, referring to FIG. 1 and FIG. 4, before steps S30a and S30b, the method further includes:

S10: compressing and storing the insulating gas in an air pump, and connecting the air inlet hole;

S20: Adjust the pressure of the air pump to a preset value.

In this embodiment, before the insulating profile 100 is inflated, it is necessary to perform related preparation work, such as compressing and storing the heat insulating gas having a lower thermal conductivity and a density greater than air in an air pump, and passing A piping and a control valve are connected to the intake holes 11 of the heat insulating profile 100 to control the flow rate of the insulating gas charged into the gap formed between the microbubbles 20 and/or the microbubbles 20, in other implementations. In an example, the insulating gas may be compressed and stored in a movable storage tank. In addition, after the air pump is connected to the air inlet hole 11 of the heat insulating profile 100, the pressure of the air pump is adjusted to a preset value according to parameters such as the size of the heat insulating profile 100, the preset value. 0.4-1 MPa so as to control the flow rate of the insulating gas to be outputted at 30 to 100 L/min, thereby enabling the gap formed between the microbubbles 20 and/or the microbubbles 20 to be filled with the insulating gas. The preset full pressure value is reached.

Further, referring to FIG. 1 and FIG. 4, after step S50, the method further includes:

S60: wrapping a layer of polyurethane on the outer surface of the heat insulating profile.

In the present embodiment, after the heat insulating gas is filled into the heat insulating profile 100, in order to further enhance the heat insulating property of the heat insulating profile 100 and prevent the heat insulating gas in the heat insulating profile 100 from overflowing, the heat insulating profile 100 is in the heat insulating profile 100. After the inflation is completed, a polyurethane layer insulation material is also required to be wrapped on the outer surface of the heat insulation profile 100. The closed cell ratio of the polyurethane insulation material can reach 95% or more, and the insulation gas filled in the heat insulation profile 100 can be further ensured. Therefore, the problem of performance degradation of the heat insulating profile 100 is avoided, and the service life of the heat insulating profile 100 is prolonged.

Further, referring to FIG. 2 and FIG. 4, based on the manufacturing method of the thermal insulation profile of the above embodiment, the steps S40a and S40b specifically include:

S41: after the first predetermined time of operation of the vacuum pump, detecting whether the microbubbles and the gap are completely vacuumed;

If yes, proceed to step S42;

S42: sealing the vent hole, opening the air inlet hole to fill the microbubble and the gap with a heat insulating gas;

If not, proceed to step S43;

S43: Control the vacuum pump to continue working until the microbubbles and the gap are completely vacuumed.

In the present embodiment, the vacuum pump is selected to extract the air in the gap formed between the microbubbles 20 and the microbubbles 20, and may be distributed according to the intake holes 11 and the exhaust holes 12 when performing the extraction. The upper and lower ends of the protective layer 10, and the position of the air inlet hole 11 is lower than the position of the vent hole 12, to place the heat insulating profile 100 to be placed in the most easily pumped and inflated position. That is, the heat insulating profile 100 is horizontally placed, and after the vacuum pump continues to draw the first predetermined time, it is detected whether the gap formed between the microbubbles 20 and the microbubbles 20 is completely vacuum, if the microbubbles 20 and the microbubbles 20 The gap formed between the gaps is in a vacuum state, and the vent hole 12 is sealed by a seal, and the air inlet hole 11 is opened to fill the gap formed between the microbubbles 20 and the microbubbles 20 with a heat insulating gas. If air is still present in the gap formed between the microbubbles 20 and the microbubbles 20, the vacuum pump is controlled to continue to extract air from the gap formed between the microbubbles 20 and the microbubbles 20 until the microbubbles 20 And the space formed between the microbubbles 20 Within full vacuum.

Further, referring to FIG. 3 and FIG. 4, based on the manufacturing method of the thermal insulation profile of the above embodiment, step S50 specifically includes:

S51: After the second predetermined time of operation of the air pump, detecting whether the microbubble and the protective layer reach a set full pressure value;

If yes, proceed to step S52;

S52: stop inflating, and seal the air inlet hole;

If not, proceed to step S53;

S53: Increase the inflation pressure until the microbubbles and the protective layer reach a set full pressure value.

In this embodiment, after the gas pump continuously fills the gap between the microbubbles 20 and the microbubbles 20 for a second predetermined time, the microbubbles 20 and the protective layer need to be further detected. 10 is sufficient to reach a preset full pressure value determined by the material, volume, and thickness of the microbubble 20 and the protective layer 10. In the embodiment, the microbubble 20 and the protection The layer 10 is made of one or more layers of a plastic film, a metal foil composite plastic film, a metal composite film coated with a metal layer, and the microbubble 20 is protected by considering atmospheric pressure. The full pressure value of the layer 10 is set at 0.1 MPa which is balanced with the atmospheric pressure, so that the internal and external pressures of the heat insulating profile 100 are balanced. If the microbubbles 20 and the protective layer 10 at this time reach full pressure, the inflation of the air pump is stopped. The air inlet hole 11 is sealed by a sealing member. This step can be realized by the electronic control unit controlling the electromagnetic valve, or can be manually controlled by a manual control of the low pressure valve. If the microbubble 20 and the protective layer 10 do not reach full pressure at this time. , you need to After the inflation pressure of the large air pump, the heat insulating gas is filled into the microbubbles 20 through the air inlet holes 11 until the microbubbles 20 and the protective layer 10 reach full pressure, and then the air intake holes are controlled. The solenoid valve at 11 is closed or the low pressure valve at the intake port 11 is manually closed to seal the intake port 11.

Further, referring to FIG. 4, the heat insulating profile is further filled with nano powder and/or glass fiber, and the heat insulating coefficient of the heat insulating gas is lower than 25 mW/(m·K), specifically, argon gas, helium gas, One or a mixture of two or more of helium, carbon dioxide, cyclopentane, and isopentane.

In this embodiment, in order to further enhance the thermal insulation performance of the thermal insulation profile 100, the thermal insulation profile 100 is also filled with nano-powder or glass fiber having anti-radiation properties, or at the same time filled with nano-powder and glass fiber. The nano-powder and/or the glass fiber are mainly filled in the gap formed between the micro-bubble 20 or the micro-bubble 20, and in the embodiment, the nano-powder may be SiO2 powder, infrared sunscreen, graphite powder, One or a mixture of two or more of carbon black powders, which may also be replaced with carbon fibers, the heat insulating coefficient of which is less than 25 mW/(m•K), preferably less than 15 mW/(m•K) insulating gas, specifically one of argon, helium, neon, carbon dioxide, cyclopentane, isopentane or a mixture of two or more mixed in any ratio The composition reduces the thermal conductivity of the thermal insulation profile and enhances its thermal insulation performance.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalents of the invention and the drawings are directly or indirectly utilized in the present invention. Other related technical fields are included in the scope of patent protection of the present invention.

Claims

A method for manufacturing a heat insulating profile, characterized in that the heat insulating profile comprises a plurality of microbubbles and at least one protective layer enclosing the plurality of microbubbles, the protective layer is provided with an air inlet hole and a vent hole, The microbubbles are formed with openings, and the manufacturing method comprises the following steps:

Extracting air in the microbubbles through the vent hole;

After the first predetermined time, sealing the vent hole, opening the air inlet hole to fill the microbubble with a heat insulating gas;

After the second predetermined time, the inflation is stopped and the intake port is sealed.
The method of manufacturing the heat insulating profile according to claim 1, wherein the step of extracting the air in the microbubbles through the vent hole further comprises:

Compressing the insulating gas in an air pump and connecting the air inlet hole;

Adjust the pressure of the air pump to a preset value.
The method of manufacturing a heat insulating profile according to claim 1, wherein after the second predetermined time, the step of stopping the inflation and sealing the air inlet hole further comprises:

A layer of polyurethane is wrapped on the outer surface of the heat insulating profile.
The method of manufacturing a heat insulating profile according to claim 1, wherein a gap is formed between adjacent ones of the microbubbles, and the step of extracting the air in the microbubbles through the exhaust holes is performed At the same time, the following steps are also performed:

Air in the gap is drawn through the vent.
The method of manufacturing a heat insulating material according to claim 2, wherein a gap is formed between the adjacent microbubbles, and the step of extracting the air in the microbubbles through the exhaust hole is performed At the same time, the following steps are also performed:

Air in the gap is drawn through the vent.
The method of manufacturing a heat insulating profile according to claim 3, wherein a gap is formed between the adjacent microbubbles, and the step of extracting the air in the microbubbles through the vent hole is performed At the same time, the following steps are also performed:

Air in the gap is drawn through the vent.
The method of manufacturing a heat insulating profile according to claim 4, wherein after the first predetermined time is performed, the step of sealing the vent hole and opening the air inlet hole to fill the microbubble with a heat insulating gas At the same time, perform the following steps:

The gap is filled with a heat insulating gas through the air inlet hole.
The method of manufacturing a heat insulating profile according to claim 5, wherein after the first predetermined time is performed, the step of sealing the vent hole and opening the air inlet hole to fill the microbubble with a heat insulating gas At the same time, perform the following steps:

The gap is filled with a heat insulating gas through the air inlet hole.
The method of manufacturing a heat insulating profile according to claim 6, wherein after the first predetermined time is performed, the step of sealing the vent hole and opening the air inlet hole to fill the microbubble with a heat insulating gas is performed. At the same time, perform the following steps:

The gap is filled with a heat insulating gas through the air inlet hole.
The method of manufacturing a heat insulating profile according to claim 7, wherein after the first predetermined time, the vent hole is sealed, and the air inlet hole is opened to fill the micro bubble with a heat insulating gas, and at the same time The step of filling the air inlet into the gap to insulate the gas includes:

After the first predetermined time of operation of the vacuum pump, detecting whether the microbubbles and the gap are completely vacuumed;

If yes, sealing the vent hole and opening the air inlet hole to fill the microbubbles and the gap with a heat insulating gas;

If not, the vacuum pump is controlled to continue to operate until the microbubbles and gaps are completely vacuumed.
The method of manufacturing the thermal insulation profile according to claim 10, wherein the step of stopping the inflation after the second predetermined time and sealing the air inlet hole comprises:

After the second predetermined time of operation of the air pump, detecting whether the microbubbles and the protective layer reach a set full pressure value;

If yes, stop inflating and seal the air inlet hole;

If not, increase the inflation pressure until the microbubbles and the protective layer reach the set full pressure value.
The method of manufacturing a heat insulating profile according to claim 4, wherein the heat insulating gas has a thermal conductivity lower than 25 mW / (m · K), the heat insulating gas is at least one of argon gas, helium gas, neon gas, carbon dioxide, cyclopentane, and isopentane.
The method for manufacturing a thermal insulation profile according to claim 7, wherein the calculation formula of the first preset time is T1=(V1+V2)/Q1, wherein T1 is a first preset time, and V1 is a microbubble. The total volume, V2 is the total volume of the gap, Q1 is the pumping rate, and the pumping rate is 30-100 L/min.
The method for manufacturing a thermal insulation profile according to claim 10, wherein the first predetermined time is calculated as T1=(V1+V2)/Q1, wherein T1 is a first preset time, and V1 is a microbubble. The total volume, V2 is the total volume of the gap, Q1 is the pumping rate, and the pumping rate is 30-100 L/min.
The method for manufacturing a thermal insulation profile according to claim 11, wherein the calculation formula of the second preset time is T2=(V1+V2)/Q2, wherein T2 is a second preset time, and V1 is a microbubble. The total volume, V2 is the total volume of the gap, Q2 is the inflation gas flow rate, and the inflation gas flow rate is 30-100 L/min.
The method of manufacturing a thermal insulation profile according to claim 11, wherein the microbubbles and the protective layer have a full pressure of 0.1 MPa.
The method of manufacturing a heat insulating profile according to claim 2, wherein the pressure of the air pump is preset to be 0.4-1 MPa.
The method for manufacturing a thermal insulation profile according to claim 1, wherein the thermal insulation profile is made of one or more layers of a plastic film, a metal foil composite plastic film, and a metal composite plate coated with a metal layer. Membrane material.
The method of producing a thermal insulation profile according to claim 1, wherein the thermal insulation profile is further filled with nanopowder and/or glass fibers.