CN211599948U

CN211599948U - Vacuum heating device of vacuum insulation panel

Info

Publication number: CN211599948U
Application number: CN202020203233.2U
Authority: CN
Inventors: 程学宇; 余耀; 曹腾宇; 许捷
Original assignee: Sichuan Micron Vip New Material Co ltd
Current assignee: Sichuan Micron Vip New Material Co ltd
Priority date: 2020-02-24
Filing date: 2020-02-24
Publication date: 2020-09-29
Anticipated expiration: 2030-02-24

Abstract

The utility model aims to solve the technical problem that a vacuum insulation panel's of the inside gas of quick discharge vacuum insulation panel, improvement vacuum efficiency, the qualification rate of effectively promoting the product vacuum heating device is provided. The device comprises a supporting platform, a vacuum cavity, a liner and a vacuumizing pump set for vacuumizing the vacuum cavity, wherein a heating plate is arranged in the liner and connected with a power supply, the size of the heating plate is matched with that of a core material of a vacuum heat insulation plate, and a heat conducting plate is arranged on the heating plate. When the device is used, the core material of the vacuum insulation panel is bagged and then placed on the inner container, the inner container is placed into the vacuum cavity, the switch is opened to enable the heating plate to work, so that the heat is transferred to the core material of the vacuum insulation panel through the heat conducting plate, the gas inside the vacuum insulation panel is convenient to discharge rapidly, the vacuum efficiency is improved, and the qualification rate of products is effectively improved. The operation is simple, and the method is suitable for popularization in the field of vacuum heating of vacuum insulation panels.

Description

Vacuum heating device of vacuum insulation panel

Technical Field

The utility model relates to a vacuum insulation panels's vacuum heating field, concretely relates to vacuum insulation panels's vacuum heating device.

Background

The vacuum insulation panel is one of vacuum insulation materials, is the most advanced high-efficiency insulation material in the world at present, and is widely used for heat insulation and heat insulation, such as heat insulation of household refrigerators, deep cooling freezers, electric water heaters, freezers, refrigerated containers, building walls and the like. The main heat insulation principle of the vacuum heat insulation plate is that heat transfer is reduced through a core material with an internal low-heat-conduction microporous structure, and heat convection is reduced through vacuumizing. Therefore, the degree of vacuum inside the vacuum insulation panel is an important factor for realizing heat insulation and lower thermal conductivity, and it is a popular understanding that the lower the degree of vacuum inside the vacuum insulation panel is, the lower the thermal conductivity of the product is.

The current way of evacuating is as follows: after the core material is bagged, the core material is placed on the bottom plate of the inner container, the core material is put into the cavity of the vacuum machine, the air in the cavity of the vacuum machine is extracted by the air-pump set to form negative pressure, the air in the barrier bag is discharged into the cavity of the vacuum machine and then is extracted until the vacuum gauge detects that the air pressure in the cavity reaches a set value, and sealing is carried out. Due to the fact that the core materials are bagged and installed, the operation time is inconsistent, and the temperature of the core materials is different. Theoretically, the gas activity degree is different at different temperatures, and the exhaust rate and the exhaust cleanness are different in the vacuum-pumping process. The current vacuum pumping mode has the following two problems: 1. the vacuum efficiency is low, and the gas needs to be exhausted as much as possible by using longer vacuum time; 2. the product uniformity is poor, when the vacuum machine cavity reaches the preset vacuum degree, gas residues in the product are inconsistent, the heat conductivity coefficient is high or low, and a certain proportion of the product is scrapped.

Disclosure of Invention

The utility model aims to solve the technical problem that a vacuum insulation panel's of the inside gas of quick discharge vacuum insulation panel, improvement vacuum efficiency, the qualification rate of effectively promoting the product vacuum heating device is provided.

The utility model provides a technical scheme that its technical problem adopted does: the vacuum heating device of the vacuum heat-insulating plate comprises a supporting platform, a vacuum cavity, a liner and a vacuumizing pump set, wherein the vacuumizing pump set is used for vacuumizing the vacuum cavity, the vacuum cavity is arranged on the upper surface of the supporting platform, the vacuumizing pump set is connected with the vacuum cavity, a door opening used for the liner to enter and exit is formed in the front side wall of the vacuum cavity, a door body used for sealing the door opening is arranged in the door opening, the liner is of a multilayer structure and comprises a bottom plate, four vertical rods and a plurality of supporting plates, the four vertical rods are respectively arranged at the corners of the bottom plate, the supporting plates are positioned right above the bottom plate and sequentially arranged at equal intervals from bottom to top, each supporting plate is parallel to the bottom plate, the four corners of each supporting plate are respectively fixed on the four vertical rods, sealing devices are arranged on the upper surfaces of the bottom plate and the supporting plates, and the bottom, The heating plates are arranged on the upper surfaces of the supporting plates and connected with a power supply, the size of each heating plate is matched with that of a core material of the vacuum heat-insulating plate, a switch is arranged between each heating plate and the power supply, a heat-conducting plate is arranged on the upper surface of each heating plate, and the size of each heat-conducting plate is matched with that of each heating plate.

Further, the heating plate is a graphene heating plate.

Further, the heat conducting plate is made of a steel plate or an aluminum plate.

Further, the thickness of the heat conducting plate is 5 mm.

Further, a temperature sensor is arranged on the heating plate, a controller is arranged on the supporting plate, the temperature sensor is connected with the controller, and the controller is connected with the switch.

Further, the vacuumizing pump set comprises a slide valve pump, a roots pump, a rotary vane pump and a diffusion pump, wherein the slide valve pump, the roots pump, the rotary vane pump and the diffusion pump are sequentially connected and combined through metal pipelines.

The utility model has the advantages that: when the vacuum heating device of the vacuum heat-insulating plate is used, firstly, core materials of the vacuum heat-insulating plate are bagged and then placed on the inner container, the inner container is of a multilayer structure and comprises a bottom plate, four vertical rods and a plurality of supporting plates, the four vertical rods are respectively arranged at corners of the bottom plate, the supporting plates are positioned right above the bottom plate and sequentially arranged at equal intervals from bottom to top, each supporting plate is parallel to the bottom plate, the four corners of each supporting plate are respectively fixed on the four vertical rods, the core materials of the vacuum heat-insulating plate are respectively placed on the bottom plate and the supporting plates, then the inner container is placed in a vacuum cavity, furthermore, heating plates are respectively arranged on the upper surfaces of the bottom plate and the supporting plates and are connected with a power supply, the size of each heating plate is matched with the size of the core materials of the vacuum heat-insulating plate, a switch is arranged between each heating plate and, the heating plate upper surface is provided with the heat-conducting plate, the big or small phase-match of the big or small hot plate of heat-conducting plate opens the switch alright make the hot plate work to the core material that makes through heat-conducting plate with heat transfer for vacuum insulation panel, the inside gas of vacuum insulation panel of being convenient for discharge fast, improve vacuum efficiency, effectively promote the qualification rate of product.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of a vacuum heating apparatus of a vacuum insulation panel according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

the notation in the figure is: the device comprises a vacuum cavity 1, a vacuumizing pump set 2, a bottom plate 3, a supporting plate 4, a sealing device 5, a heating plate 6, a heat conducting plate 7, a controller 8 and a temperature sensor 9.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and 2, this vacuum insulation panel's vacuum heating device includes supporting platform, vacuum cavity 1, inner bag, is used for the evacuation pump package 2 with vacuum cavity 1 evacuation, vacuum cavity 1 sets up at the supporting platform upper surface, evacuation pump package 2 is connected with vacuum cavity 1, be provided with the door opening that is used for the inner bag business turn over on vacuum cavity 1's the preceding lateral wall, be provided with the door body that is used for sealing the door opening in the door opening, the inner bag is multilayer structure, the inner bag includes bottom plate 3, four montants, a plurality of backup pad 4, four montants set up respectively in the corner of bottom plate 3, a plurality of backup pad 4 are located directly over bottom plate 3 and from up in proper order equidistant setting down, and every backup pad 4 all is parallel with bottom plate 3, and four turnings of every backup pad are fixed respectively on four montants, bottom plate 3, vacuum cavity 1, The upper surfaces of the supporting plates 4 are provided with sealing devices 5, the upper surfaces of the supporting plates 3 and the supporting plates 4 are provided with heating plates 6, the heating plates 6 are connected with a power supply, the size of each heating plate 6 is matched with the size of the core material of the vacuum heat-insulating plate, a switch is arranged between each heating plate 6 and the power supply, the upper surface of each heating plate 6 is provided with a heat-conducting plate 7, and the size of each heat-conducting plate 7 is matched with the size of each heating plate 6. When the vacuum heating device of the vacuum insulation panel is used, firstly, core materials of the vacuum insulation panel are bagged and then placed on the inner container, the inner container is of a multilayer structure and comprises a bottom plate 3, four vertical rods and a plurality of supporting plates 4, the four vertical rods are respectively arranged at corners of the bottom plate 3, the supporting plates 4 are positioned right above the bottom plate 3 and are sequentially arranged at equal intervals from bottom to top, each supporting plate 4 is parallel to the bottom plate 3, the four corners of each supporting plate are respectively fixed on the four vertical rods, the core materials of the vacuum insulation panels are respectively placed on the bottom plate 3 and the supporting plates 4, then the inner container is placed into a vacuum cavity 1, furthermore, heating plates 6 are respectively arranged on the upper surfaces of the bottom plate 3 and the supporting plates 4, the heating plates 6 are connected with a power supply, and the size of the heating plates 6 is matched with the size of the core materials of the vacuum insulation panel, be provided with the switch between hot plate 6 and the power, hot plate 6 upper surface is provided with heat-conducting plate 7, the big or small phase-match of the big or small hot plate 6 of heat-conducting plate 7 opens the switch alright make hot plate 6 work to the core material that makes through heat-conducting plate 7 gives the heat transfer for vacuum insulation panel is convenient for discharge the inside gas of vacuum insulation panel fast, is improved vacuum efficiency, effectively promotes the qualification rate of product.

In the above embodiment, the heating plate 6 is a conventional heating plate, and preferably, the heating plate 6 is a graphene heating plate 6.

In order to prevent the heating plate 6 from deforming in the heating process to cause product deformation, the heat conducting plate 7 is made of a steel plate or an aluminum plate, so that the product deformation can be prevented through the steel plate or the aluminum plate, and meanwhile, a good heat conducting effect can be achieved.

According to actual requirements, the thickness of the heat conducting plate 7 is 5 mm.

In order to ensure the constant temperature of the heating plate 6 and automatically control the heating, a temperature sensor 9 is arranged on the heating plate 6, a controller 8 is arranged on the supporting plate 4, the temperature sensor 9 is connected with the controller 8, and the controller 8 is connected with the switch. This allows for automatic temperature regulation by the controller 8 and the temperature sensor 9.

The vacuum pump set is in the prior art, the vacuumizing pump set 2 comprises a slide valve pump, a roots pump, a rotary vane pump and a diffusion pump, and the slide valve pump, the roots pump, the rotary vane pump and the diffusion pump are sequentially connected and combined through metal pipelines.

Claims

1. A vacuum heating device of a vacuum insulation panel comprises a supporting platform, a vacuum cavity (1), an inner container and a vacuumizing pump set (2) for vacuumizing the vacuum cavity (1), wherein the vacuum cavity (1) is arranged on the upper surface of the supporting platform, the vacuumizing pump set (2) is connected with the vacuum cavity (1), a door opening for the inner container to enter and exit is formed in the front side wall of the vacuum cavity (1), a door body for sealing the door opening is arranged in the door opening, the inner container is of a multilayer structure and comprises a bottom plate (3), four vertical rods and a plurality of supporting plates (4), the four vertical rods are respectively arranged at four corners of the bottom plate (3), the supporting plates (4) are positioned right above the bottom plate (3) and are sequentially arranged at equal intervals from bottom to top, each supporting plate (4) is parallel to the bottom plate (3), and four corners of each supporting plate are respectively fixed on the four vertical rods, bottom plate (3), a plurality of backup pad (4) upper surface are provided with closing device (5), its characterized in that: bottom plate (3), a plurality of backup pad (4) upper surface all are provided with hot plate (6), hot plate (6) link to each other with the power, the size of hot plate (6) and the size phase-match of the core of vacuum insulation panel, be provided with the switch between hot plate (6) and the power, hot plate (6) upper surface is provided with heat-conducting plate (7), the size of heat-conducting plate (7) and the size phase-match of hot plate (6).

2. A vacuum heating apparatus of a vacuum insulation panel according to claim 1, wherein: the heating plate (6) is a graphene heating plate (6).

3. A vacuum heating apparatus of a vacuum insulation panel according to claim 1, wherein: the heat conducting plate (7) is made of a steel plate or an aluminum plate.

4. A vacuum heating apparatus of a vacuum insulation panel according to claim 3, wherein: the thickness of the heat conducting plate (7) is 5 mm.

5. A vacuum heating apparatus of a vacuum insulation panel according to claim 1, wherein: the heating plate (6) is provided with a temperature sensor (9), the supporting plate (4) is provided with a controller (8), the temperature sensor (9) is connected with the controller (8), and the controller (8) is connected with the switch.

6. A vacuum heating apparatus of a vacuum insulation panel according to claim 1, wherein: the vacuum pumping unit (2) comprises a slide valve pump, a roots pump, a rotary vane pump and a diffusion pump, wherein the slide valve pump, the roots pump, the rotary vane pump and the diffusion pump are sequentially connected and combined through metal pipelines.