CN109184520B - Sealing system for environmental chamber gates - Google Patents
Sealing system for environmental chamber gates Download PDFInfo
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- CN109184520B CN109184520B CN201811126431.7A CN201811126431A CN109184520B CN 109184520 B CN109184520 B CN 109184520B CN 201811126431 A CN201811126431 A CN 201811126431A CN 109184520 B CN109184520 B CN 109184520B
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- gate
- sealing
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- environmental chamber
- sealing system
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
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- Engineering & Computer Science (AREA)
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- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The application belongs to the field of environmental tests, and particularly relates to a sealing system for a gate of an environmental chamber; the sealing system includes: the sealing element is laid along the edge of the length direction of the gate, and the sealing element has a natural state and an inflation state; in a natural state, the sealing member has a predetermined distance from the edge of the corresponding side; when the door is inflated, the sealing element is attached to the wall surface of the corresponding side or the ground or the edge of the corresponding side of the other adjacent door; the controller is used for controlling the sealing element to be inflated or deflated; and the air source is used for inflating the sealing element through the controller. The sealing system for the environmental chamber gate realizes sealing between the oversized gate and the gate, between the gate and the ground and between the oversized gate and the building main body through the inflatable sealing element, effectively ensures that the indoor environment is not influenced by the outside, and leaves a certain safety distance between the sealing interface and the sealing interface when the sealing element is not inflated, so that normal action of the gate is not influenced.
Description
Technical Field
The application belongs to the field of environmental tests, and particularly relates to a sealing system for a gate of an ultra-large environmental chamber.
Background
The environment test room is mainly used for carrying out extreme environment simulation of high and low temperature, high humidity and the like, when the environment test room is used for carrying out a test, the interior of the environment test room is in a micro-positive pressure state, and a gate is directly tested in an extreme environment. The size of the environmental chamber gate can be determined according to environmental test requirements, in some ultra-large environmental test chambers, the environmental chamber gate can be divided into four gates, the total width of the gate can reach 72m, and the height of each gate can reach 24 m.
The environmental chamber gate is used as the biggest leakage position of environmental chamber, if the gate sealing processing is not good, air enters/leaks the environmental chamber from the sealed position, influences the realization of environmental index in the environmental chamber, has increased the energy consumption of environmental chamber simultaneously, and in serious cases, a large amount of icing can appear in door body and environmental chamber structure, brings the threat to the safety of environmental chamber.
However, an effective sealing form of the ultra-large door capable of enduring extreme environments does not exist at present, and the traditional extrusion sealing form of the small door is not suitable for the ultra-large door and easily causes the leakage problem, so that the test requirements cannot be met.
Accordingly, a technical solution is desired to overcome or at least alleviate at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The object of the present application is to provide a sealing system for environmental chamber gates to at least solve the sealing problem of gates in extreme environments of existing environmental chambers.
The technical scheme of the application is as follows:
a sealing system for an environmental chamber gate, comprising:
the sealing element is in a flexible tubular shape and is laid along the edge of the length direction of the gate, and the sealing element has a natural state and an inflated state; wherein
In the natural state, a preset distance is reserved between one side of the sealing element, which faces away from the edge of the large door, and the wall surface or the ground of the corresponding side or the edge of the corresponding side of the adjacent other large door;
when the door is in the inflated state, one side of the sealing element, which is back to the edge of the door, is in sealing fit with the wall surface of the corresponding side or the ground or the edge of the corresponding side of the other adjacent door;
the sealing system for an environmental chamber gate further comprises:
a controller in communication with the seal for controlling inflation of the seal or deflation of the seal in an inflated state;
and the air source is used for inflating the sealing element through the controller.
Optionally, the sealing system for an environmental chamber gate further comprises:
and the electric tracing band is laid on the wall surface or the ground or the edge of the other adjacent gate opposite to one side of the edge of the gate along the length direction of the gate, and the laying position is matched with the position of the sealing piece, so that the sealing part of the sealing piece is heated in a controlled manner.
Optionally, the number of the sealing elements laid along each edge of the length of the gate is two and parallel to each other.
Optionally, the number and position of the electric trace strips running along the length of the edge of the gate are adapted to the number and position of the seals on the opposite side.
Optionally, there are four of the seals juxtaposed between the edge of the gate and the edge of the opposite side of the adjacent other gate, wherein two spaced seals are provided on one gate edge and two other spaced seals are provided on the other gate edge.
Optionally, there are four electric tracing bands arranged in parallel between the edge of the gate and the edge of the corresponding side of the adjacent other gate; wherein
The two electric tracing bands are arranged on the edge of one gate and are matched with the two sealing pieces on the edge of the other gate in position;
and the other two electric tracing bands are arranged on the other gate edge and are matched with the two sealing parts on the gate edge in position.
Optionally, the sealing system for an environmental chamber gate further comprises:
the sealing piece is characterized by comprising a base in a flexible strip shape, the outer annular surface of the sealing piece is fixedly arranged on the base, and the sealing piece is paved through the base along the edge of the length direction of the gate.
Optionally, the sealing element and the base are both made of a silicon rubber material, and the sealing element and the base are integrally formed components.
Optionally, the controller comprises:
the inflation and pressure reduction valve is used for controlling the sealing element to inflate;
a deflation valve for deflating the sealing member controlled to be in an inflated state;
a pressure sensor for monitoring a pressure condition within the seal.
Optionally, the sealing system for an environmental chamber gate further comprises:
the temperature sensor is arranged in the environment chamber and used for monitoring the temperature in the environment chamber in real time;
and the electric tracing band controller is used for controlling the on-off of the electric tracing band according to the temperature information transmitted by the temperature sensor.
The application has at least the following beneficial technical effects:
the sealing system for the environmental chamber gate realizes sealing between the oversized gate and the gate, between the gate and the ground and between the oversized gate and the building main body through the inflatable sealing element, effectively ensures that the indoor environment is not influenced by the outside, and leaves a certain safety distance between the sealing interface and the sealing interface when the sealing element is not inflated, so that normal action of the gate is not influenced.
Drawings
FIG. 1 is a schematic view of a gate with a seal applied thereto in one embodiment of the present application;
FIG. 2 is an enlarged schematic view of section A of FIG. 1 of the present application;
FIG. 3 is an enlarged schematic view of portion B of FIG. 1 of the present application
FIG. 4 is an enlarged view of section C of FIG. 1 of the present application
FIG. 5 is an enlarged view of section D of FIG. 1 of the present application
FIG. 6 is a schematic cross-sectional view of a seal and gate connection in one embodiment of the sealing system for an environmental chamber gate of the present application;
FIG. 7 is a schematic view of the seal at an upper corner of a gate in an embodiment of the sealing system for an environmental chamber gate of the present application;
figure 8 is a schematic view of the seal at a corner of a gate top door room in an embodiment of the sealing system for an environmental chamber gate of the present application;
figure 9 is a schematic view of the seal at the lower corner of the gate in one embodiment of the sealing system for an environmental chamber gate of the present application.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The sealing system for an environmental chamber gate of the present application is described in further detail below with reference to fig. 1-9.
The invention discloses a sealing system for a gate of an environmental chamber, which can comprise a sealing element 1, a controller, an air source and the like.
The seal 1 is preferably flexible tubular; the sealing member 1 is configured to be fixedly laid along the edge of the length direction of the gate 2, that is, between the gate 2 and the wall surface, between the gate 2 and the ground, and between the gate 2 and an adjacent gate.
Further, the seal 1 may be inflated and deflated in the pipe cavity, so that the seal 1 has a natural state and an inflated state.
Specifically, when the sealing member 1 is in a natural state (non-inflated state), a predetermined distance (safety distance) is provided between one side of the sealing member 1 facing away from the edge of the gate 2 and the wall surface or the ground of the corresponding side or the edge of the corresponding side of the adjacent other gate 2. The predetermined distance may be suitably set as required in order that the seal 1 does not interfere with the normal opening and closing of the gate in its natural state.
When the sealing element 1 is in an inflation state, one side of the sealing element 1, which is back to the edge of the gate 2, is in sealing fit with the wall surface or the ground of the corresponding side or the edge of the corresponding side of the adjacent gate 2, so that the sealing of a gap around the gate 2 is realized.
Further, the air source is used for inflating the sealing element 1 through the controller; the air source can be selected according to needs, such as air, nitrogen and the like, and in the embodiment, air pressurization and inflation are preferably adopted, so that the operation cost is low.
In addition, a controller is in communication with the seal 1 for controlling inflation of the seal 1 or deflation of the seal 1 in an inflated condition. Also, the controller may be selected as needed, and in this embodiment, the controller may include a charge/discharge valve, a purge valve, and a pressure sensor; the inflation and pressure reduction valve can be arranged between one port (air inlet) corresponding to the sealing element 1 and an air source and is used for controlling the sealing element 1 to inflate; the deflation valve can be arranged between the other port (air outlet) corresponding to the sealing element 1 and the air source and is used for deflating the sealing element 1 which is controlled to be in an inflation state; the pressure sensor is arranged on the inflation pipeline away from the inflation inlet of the sealing element and used for monitoring the pressure in the sealing element, and the monitoring value is used as the basis for inflation and deflation and judging the state of the sealing element.
It should be noted that, in other preferred embodiments, the sealing element 1 may be a one-end sealing element, and only has one opening, and at this time, the inflation/deflation valve and the deflation valve may be simultaneously communicated with the opening through a structure similar to a tee pipe, and one controls inflation and the other controls deflation, and the structure is not described again.
The sealing system for the environmental chamber gate realizes sealing between the oversized gate and the gate, between the gate and the ground and between the oversized gate and the building main body through the inflatable sealing element, effectively ensures that the indoor environment is not influenced by the outside, and leaves a certain safety distance between the sealing interface and the sealing interface when the sealing element is not inflated, so that normal action of the gate is not influenced.
Further, the sealing system for the environmental chamber gate of the present invention may further include an electric tracing band 3.
The electric tracing band 3 can adopt various suitable electric tracing band structures known at present; the electric tracing band 3 is laid on the wall surface or the ground or the edge of the other adjacent gate 2 along the side length direction of the gate 2, wherein the wall surface or the ground is opposite to one side of the edge of the gate 2, and the laying position is matched with the position of the sealing piece 1, and is used for heating the sealing piece 1 in a controlled manner.
The sealing system for the environmental chamber gate adopts the hidden heat tracing function, effectively prevents the sealing structure from freezing and freezing, and has high safety; the seal 1 is heated by the electrical trace band 3 when required, so that the sealing system can be used in all kinds of extreme environments and maintains very good sealing performance.
In the sealing system for the environmental chamber gate of the present invention, the number of the sealing member 1 and the electric tracing band 3 may be suitably set as required; in the embodiment, the number of seals 1 laid along each edge of the gate 2 in the direction of the side length is preferably two and parallel to each other; correspondingly, the number and position of the electrical trace strips 3, which are preferably laid along the length of the gate 2, are adapted to the number and position of the seals 1 on the opposite side.
Further, when at least two gates 2 are provided, four sealing members 1 and four electric tracing bands 3 are provided between the edge of one gate 2 and the edge of the corresponding side of the adjacent other gate 2.
Preferably, four seals 1 are arranged next to one another, two spaced seals 1 being fixedly arranged on the edge of one gate 2 and the other two spaced seals 1 being fixedly arranged on the edge of the other gate 2. Similarly, four electric tracing bands 3 are arranged in parallel; the two electric tracing bands 3 are fixedly arranged on the edge of one gate 2, and the fixed positions are matched with the positions of the two sealing pieces 1 on the edge of the other gate 2 and used for heating the two sealing pieces 1. Two other electric tracing bands 3 are arranged at the edge of the other gate 2, and the positions of the two electric tracing bands are matched with the positions of the two sealing pieces 1 at the edge of the gate 2, so that the two sealing pieces 1 can be heated.
Above-mentioned such sealed heating structure in interval, rationally distributed, can further strengthen the sealed between door and the door, the heating of while each other can not receive the influence again.
Further, the sealing system for environmental chamber gates of the present invention may also comprise a base 11.
The base 11 is flexible and long, the outer annular surface of the sealing element 1 is fixedly arranged on the base 11, and the base 11 is fixedly connected with the corresponding side edge of the gate 1 through a sealing fixing element; that is, the sealing member 1 is fixedly laid along the edge of the gate 2 in the side length direction by the base 11.
The sealing member 1 and the base 11 can be made of various known suitable materials, in this embodiment, the sealing member 1 and the base 11 are preferably made of silicon rubber materials, can resist high-temperature and low-temperature environments, and the sealing member 1 and the base 11 are preferably integrally molded components, so that the stability is stronger.
Further, the sealing system for the environmental chamber gate of the invention can also be used for a temperature sensor and an electric tracing band controller.
The temperature sensor is arranged in the environment chamber and used for monitoring the temperature in the environment chamber in real time; the electric tracing band controller is used for controlling the opening and closing of the electric tracing band 3 according to the temperature information transmitted by the temperature sensor.
The installation and operation principle of the sealing system for the environmental chamber gate of the invention is as follows:
according to the sealing design requirement of the gate of the environmental chamber, the inflatable sealing piece 1 and the electric tracing band 3 are respectively arranged on the sealing interfaces of the gate 1 and the wall body of the laboratory, the ground and other adjacent gates, and the sealing piece 1 on the periphery of the gate 1 is ensured to be in full contact with the electric tracing band 3 when being sealed.
When the door is opened, the rubber sealing element 1 is not inflated, the sealing element 1 is in a natural state, and a controller of the electric tracing band 3 is electrified (but the tracing band is not started to heat). Before environmental test is carried out in the environmental chamber, the large door is closed until the limit switch is closed, and the large door is closed to a preset position (the safety distance between the sealing element 1 and the corresponding sealing interface is about 25 mm). And then butting an inflation pipe of the sealing element 1 with an air source, adjusting an inflation pressure reducing valve to enable the inflation pressure to reach 0.03MPa, and tightly attaching the two parallel sealing elements 1 and the corresponding electric tracing bands 3 at the sealing interface to achieve a sealing state. When the indoor temperature of the environment is monitored to be subzero, an electric tracing band controller in the large door sealing heat tracing device automatically starts an electric tracing band 3 to heat, and the phenomenon that the periphery of the sealing element 1 is frozen is avoided.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. A sealing system for an environmental chamber gate, comprising:
the sealing piece (1) is in a flexible tubular shape, the sealing piece (1) is laid along the edge of the length direction of the side of the gate (2), and the sealing piece (1) has a natural state and an inflation state; wherein
In the natural state, a preset distance is reserved between one side of the sealing element (1) facing away from the edge of the gate (2) and the wall surface or the ground of the corresponding side or the edge of the corresponding side of the adjacent other gate (2);
when the door is in the inflated state, one side of the sealing element (1), which is back to the edge of the door (2), is in sealing fit with the wall surface or the ground of the corresponding side or the edge of the corresponding side of the other adjacent door (2);
the sealing system for an environmental chamber gate further comprises:
a controller in communication with the seal (1) for controlling inflation of the seal (1) or deflation of the seal (1) in an inflated state;
a gas source for inflating the seal (1) by means of the controller;
the sealing system for an environmental chamber gate further comprises:
and the electric tracing band (3) is laid on the wall surface or the ground opposite to one side of the edge of the gate (2) or the edge of the other adjacent gate (2) along the side length direction of the gate (2), and the laying position is matched with the position of the sealing piece (1) and is used for controllably heating the sealing part of the sealing piece (1).
2. Sealing system for environmental chamber gates according to claim 1, characterized in that the number of said seals (1) laid along each edge of the length of a side of the gate (2) is two and parallel to each other.
3. Sealing system for environmental chamber gates according to claim 2, characterized in that the number and position of the electric tracing bands (3) laid along the length of the sides of the gate (2) are adapted to the number and position of the seals (1) on the opposite side.
4. Sealing system for environmental chamber gates according to claim 3, characterized in that between the edge of the gate (2) and the edge of the corresponding side of the adjacent other gate (2) there are four side by side seals (1), wherein two spaced seals (1) are provided at the edge of one gate (2) and two other spaced seals (1) are provided at the edge of the other gate (2).
5. Sealing system for environmental chamber gates according to claim 4, characterized in that between the edge of the gate (2) and the edge of the corresponding side of the adjacent other gate (2) there are four electric tracing strips (3) arranged side by side; wherein
The two electric tracing bands (3) are arranged at the edge of one gate (2) and are matched with the two sealing pieces (1) at the edge of the other gate (2);
and the other two electric tracing bands (3) are arranged at the edge of the other gate (2) and are matched with the two sealing pieces (1) at the edge of the gate (2).
6. The sealing system for an environmental chamber gate according to any one of claims 1 to 5, further comprising:
the sealing structure comprises a base (11) which is flexible and long, the outer annular surface of the sealing element (1) is fixedly arranged on the base, and the sealing element (1) is paved through the base (11) along the edge of the gate (2) in the length direction.
7. Sealing system for an environmental chamber gate according to claim 6, characterized in that said sealing member (1) and said base (11) are both made of silicone rubber material and in that said sealing member (1) and said base (11) are an integral component.
8. The sealing system for an environmental chamber gate of claim 7, wherein the controller comprises:
the inflation and decompression valve is used for controlling the inflation of the sealing element (1);
a deflation valve for deflating the seal (1) controlled in an inflated state;
a pressure sensor for monitoring a pressure condition within the seal (1).
9. The sealing system for an environmental chamber gate of claim 8, further comprising:
the temperature sensor is arranged in the environment chamber and used for monitoring the temperature in the environment chamber in real time;
and the electric tracing band controller is used for controlling the opening and closing of the electric tracing band (3) according to the temperature information transmitted by the temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811126431.7A CN109184520B (en) | 2018-09-26 | 2018-09-26 | Sealing system for environmental chamber gates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811126431.7A CN109184520B (en) | 2018-09-26 | 2018-09-26 | Sealing system for environmental chamber gates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109184520A CN109184520A (en) | 2019-01-11 |
| CN109184520B true CN109184520B (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811126431.7A Active CN109184520B (en) | 2018-09-26 | 2018-09-26 | Sealing system for environmental chamber gates |
Country Status (1)
| Country | Link |
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| CN (1) | CN109184520B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206465A (en) * | 2019-04-14 | 2019-09-06 | 中国城市建设研究院有限公司 | Exclusion seal door |
| CN113834682B (en) * | 2021-11-26 | 2022-03-04 | 中国飞机强度研究所 | Freezing prevention device for airplane test |
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| JPH08136114A (en) * | 1994-11-07 | 1996-05-31 | Tabai Espec Corp | Door of sealed container |
| CN101886485A (en) * | 2010-07-01 | 2010-11-17 | 高速铁路建造技术国家工程实验室 | Environmental simulation laboratory |
| CN204941228U (en) * | 2015-07-15 | 2016-01-06 | 崔静涛 | The safe air tight door of air filling type biology laboratory |
| CN106401427A (en) * | 2016-09-20 | 2017-02-15 | 天津航天瑞莱科技有限公司 | Seal structure for ultralow temperature environment simulation equipment door |
| CN108050256A (en) * | 2017-11-29 | 2018-05-18 | 中国飞机强度研究所 | A kind of high temperature and high pressure kettle wide arc gap compensating type sealing device |
| CN108150066A (en) * | 2018-03-16 | 2018-06-12 | 军事科学院系统工程研究院卫勤保障技术研究所 | A kind of double bolloon inflatable gas-tight door and its air-tightness self checking method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575141A (en) * | 2017-09-20 | 2018-01-12 | 宝鸡大医数码机器人有限责任公司 | One kind flaw detection indoor built-in protection gate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08136114A (en) * | 1994-11-07 | 1996-05-31 | Tabai Espec Corp | Door of sealed container |
| CN101886485A (en) * | 2010-07-01 | 2010-11-17 | 高速铁路建造技术国家工程实验室 | Environmental simulation laboratory |
| CN204941228U (en) * | 2015-07-15 | 2016-01-06 | 崔静涛 | The safe air tight door of air filling type biology laboratory |
| CN106401427A (en) * | 2016-09-20 | 2017-02-15 | 天津航天瑞莱科技有限公司 | Seal structure for ultralow temperature environment simulation equipment door |
| CN108050256A (en) * | 2017-11-29 | 2018-05-18 | 中国飞机强度研究所 | A kind of high temperature and high pressure kettle wide arc gap compensating type sealing device |
| CN108150066A (en) * | 2018-03-16 | 2018-06-12 | 军事科学院系统工程研究院卫勤保障技术研究所 | A kind of double bolloon inflatable gas-tight door and its air-tightness self checking method |
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| CN109184520A (en) | 2019-01-11 |
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