CN113983596A - Anti-leakage micro-positive pressure internal circulation purification system - Google Patents

Abstract

The embodiment of the invention relates to a leakage-proof micro-positive pressure internal circulation purification system, relates to the technical field of purification, and mainly aims to improve the safety and reliability of the leakage-proof micro-positive pressure internal circulation purification system. The main technical scheme adopted is as follows: a leak-proof, micro-positive pressure, internal circulation purification system comprising: a positive pressure compartment; a decontamination cabin; the first circulating air pipe is respectively communicated with an air inlet of the positive pressure cabin and an air outlet of the purification cabin; a first port of the second circulating air pipe is communicated with an air inlet of the purification cabin; an air inlet of the circulating fan is arranged in the positive pressure cabin, and an air outlet of the circulating fan is detachably communicated with a second port of the second circulating air pipe; wherein be provided with the purification unit in the purification cabin, the purification unit be used for by the purification cabin entry to the gas that purification cabin export direction flows carries out the pollutant and purifies, can not lead to outside gaseous pollutants to leak and get into malleation cabin, purification cabin in.

Description

Anti-leakage micro-positive pressure internal circulation purification system

Technical Field

The embodiment of the invention relates to the technical field of purification, in particular to an internal circulation purification system.

Background

When the outside clean air is polluted in a large area by pollutants harmful to human health, an isolation protection system needs to be established for personnel in the area in an emergency, and a safe and reliable clean living space is provided for the personnel in the area.

Wherein, the accident that takes place the pollution has the characteristics of place randomness, time randomness usually, consequently for keep apart protection system and should possess the characteristic that has fast assembly and high mobility, thereby can keep apart protection system and carry to the pollution accident place by the quick transportation in equipment storage place, and carry out quick equipment to keep apart protection system.

If the isolation protection system adopts an integral structure, although the sealing performance is better, the mobility is poorer due to larger volume. In order to achieve high maneuverability of the insulation protection system, the insulation protection system is generally assembled by a plurality of parts, and the assembly work of the insulation protection system is completed after the plurality of parts are packed and transported to an accident site. The parts are connected through the air pipes, so that the air pipes are low in cost, efficient, quick and stable in sealing, and the technical problem to be overcome by technical personnel in the field is solved by preventing external polluted gas from entering the isolation protection system.

Disclosure of Invention

In view of this, the embodiment of the present invention provides an internal circulation purification system, and mainly aims to improve the safety and reliability of the internal circulation purification system.

In order to achieve the above purpose, the embodiments of the present invention mainly provide the following technical solutions:

an embodiment of the present invention provides a leak-proof micro-positive pressure internal circulation purification system, comprising:

a positive pressure compartment;

a decontamination cabin;

the first circulating air pipe is respectively communicated with the air inlet of the positive pressure cabin and the air outlet of the purification cabin;

a first port of the second circulating air pipe is communicated with the air inlet of the purification cabin;

an air inlet of the circulating fan is arranged in the positive pressure cabin, and an air outlet of the circulating fan is detachably communicated with a second port of the second circulating air pipe; wherein

And a purification unit is arranged in the purification cabin and is used for purifying pollutants in the gas flowing from the purification cabin inlet to the purification cabin outlet.

The purpose of the embodiments of the present invention and the technical problems solved thereby can be further realized by the following technical measures.

Optionally, the leakage-proof micro-positive pressure internal circulation purification system is provided, wherein the circulation fan is disposed in the positive pressure chamber.

Optionally, in the leak-proof micro-positive pressure internal circulation purification system, the second port of the second circulation air pipe extends into the positive pressure chamber for a preset distance, and is communicated with the air inlet of the circulation fan.

Optionally, the leak-proof micro-positive pressure internal circulation purification system, wherein the wind resistance pressure of the purification unit is greater than the positive pressure in the positive pressure chamber.

Optionally, in the leak-proof micro-positive pressure internal circulation purification system, a positive pressure air duct is formed in the second circulation air duct.

Optionally, in the leak-proof micro-positive pressure internal circulation purification system, a positive pressure air duct is formed in the first circulation air duct.

Optionally, the leak-proof micro-positive pressure internal circulation purification system further includes:

and the functional equipment is arranged in the positive pressure cabin.

Optionally, the leak-proof micro-positive pressure internal circulation purification system comprises at least one of a heating device and a cooling device.

Optionally, the leak-proof micro-positive pressure internal circulation purification system further includes:

a positive pressure maintenance device in communication with the positive pressure compartment or the decontamination chamber.

Optionally, the leak-proof micro-positive pressure internal circulation purification system described above, wherein the operating pressure of the positive pressure compartment is 1.013 x 10⁵+20Pa to 1.013X 10⁵+100Pa。

By the technical scheme, the leakage-proof micro-positive pressure internal circulation purification system provided by the technical scheme of the invention at least has the following advantages:

in the technical scheme provided by the embodiment of the invention, the circulating fan is arranged at one side of the positive pressure cabin, if the wind resistance of the purification unit is too high, and after the circulating fan is started, the air inlet of the circulating fan generates negative pressure due to the fact that the resistance of the purification unit is larger than the positive pressure of the positive pressure cabin, compared with the technology, the air inlet of the circulating fan is arranged in the positive pressure cabin, the second circulating air pipe connected with the air outlet of the circulating fan can not be in negative pressure, on the contrary, the second circulating air pipe can be kept at higher positive pressure, if so, the pipe wall of the second circulating air pipe is damaged, or the connection part of the second circulating air pipe and the positive pressure cabin and the connection part of the second circulating air pipe and the purification cabin are not tightly sealed, the gas in the second circulating air pipe can leak outwards, and the external pollution gas can not leak into the positive pressure cabin, And (4) purifying the cabin.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the embodiments of the present invention more clear and clear, and to implement the technical solutions according to the contents of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic diagram of an internal circulation purification system provided by an embodiment of the present invention;

FIG. 2 is a schematic diagram of an alternative embodiment of a leak-proof micro-positive pressure internal circulation decontamination system;

FIG. 3 is a schematic diagram of another specific leak-proof micro-positive pressure internal circulation decontamination system provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of a further specific leak-proof micro-positive pressure internal circulation decontamination system provided by an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a further leak-proof clean room of a micro-positive pressure internal circulation decontamination system according to an embodiment of the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the purpose of the predetermined embodiments of the present invention, the following detailed description is provided for the specific implementation, structure, features and effects of the internal circulation purification system according to the embodiments of the present invention with reference to the accompanying drawings and the preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

As shown in fig. 1, the internal circulation purification system provided in this embodiment includes: positive pressure chamber 10, clean room 20, first air circulation duct 30, second air circulation duct 40 and circulating fan 50. The first circulating air duct 30 is respectively and detachably communicated with the air inlet of the positive pressure cabin 10 and the air outlet of the purification cabin 20; a first port of the second circulating air pipe 40 is detachably communicated with an air inlet of the purifying cabin 20; the circulating fan 50 is arranged in the purification cabin 20, and an air inlet of the circulating fan 50 is communicated with a second port of the second circulating air pipe 40.

The purifying chamber 20 is provided with a purifying unit 60 therein, and the purifying unit 60 is used for purifying pollutants in the gas flowing from the inlet of the purifying chamber 20 to the outlet of the purifying chamber 20.

The operating pressure in the positive pressure chamber 10 is a positive pressure, and the pressure of the positive pressure is understood to be relative to the atmospheric environment outside the positive pressure chamber 10, that is, the operating pressure in the positive pressure chamber 10 is greater than the pressure of the atmospheric environment outside the positive pressure chamber 10.

Under certain specific requirements, the working pressure in the positive pressure chamber 10 needs to be maintained at a slight positive pressure, which may be 1.013 × 10⁵+20Pa to 1.013X 10⁵+100 Pa. The pressure maintaining mode of the positive pressure chamber 10 may be realized by a positive pressure maintaining device which is communicated with the positive pressure chamber 10 or the clean room 20. The positive pressure maintaining equipment may be a purifying ventilator, which can purify the outside polluted gas and then introduce clean air into the positive pressure chamber 10 to maintain the pressure of the positive pressure chamber 10 at 1.013 × 10⁵+20Pa to 1.013X 10⁵+100 Pa. On the one hand, the micro-positive pressure state is an important index for energy saving (the area where the disaster occurs and polluted air, usually a power-off area, needs to be generated by fuel oil or supplied by a self-contained battery) corresponding to a special use environment, and the micro-positive pressure state can save electric energy to a great extent compared with the high-pressure state. On the other hand, the micro-positive pressure state can meet the pressure requirement of special equipment. In yet another aspect, the comfort pressure requirements of a person may be met for a space suitable for use by the person.

The purification unit 60 may be made of activated carbon or other filter material, and after the circulation fan 50 is started, the filter material of the purification unit 60 may generate wind resistance. The inventor finds that: for the positive pressure cabin 10 in the micro-positive pressure state, if the wind resistance of the filter material is too high, and the filter material resistance is greater than the micro-positive pressure of the positive pressure cabin 10, negative pressure will appear at the air inlet of the circulating fan 50, and the second circulating air duct 40 connected with the air inlet of the circulating fan 50 will be in the negative pressure as well. If so, the pipe wall of the second circulating air pipe 40 is damaged, or the joint between the second circulating air pipe 40 and the positive pressure cabin 10 and the joint between the second circulating air pipe 40 and the purification cabin 20 are not sealed tightly, which can cause the leakage of the outside polluted gas into the positive pressure cabin 10 and the purification cabin 20, on one hand, the filtering load of the filtering material can be increased, and the service life of the purification unit 60 can be reduced. On the one hand, if the filtering function of the filtering material cannot filter the external polluted gas, the polluted gas which cannot be filtered enters the positive pressure cabin 10 and the purification cabin 20 for internal circulation, which causes serious safety threat.

Based on the above solution, fig. 2 to fig. 4 are embodiments of a leak-proof micro-positive pressure internal circulation purification system provided by the present invention, and referring to fig. 2 to fig. 4, an embodiment of the present invention provides a leak-proof micro-positive pressure internal circulation purification system, including: positive pressure chamber 10, clean room 20, first air circulation duct 30, second air circulation duct 40 and circulating fan 50.

The first circulating air duct 30 is respectively and detachably communicated with the air inlet of the positive pressure cabin 10 and the air outlet of the purification cabin 20; a first port of the second circulating air duct 40 is detachably communicated with an air inlet of the purifying cabin 20; an air inlet of the circulating fan 50 is arranged in the positive pressure cabin, and an air outlet of the circulating fan 50 is detachably communicated with a second port of the second circulating air pipe 40; a purifying unit 60 is arranged in the purifying cabin 20, and the purifying unit 60 is used for purifying pollutants in the gas flowing from the inlet of the purifying cabin 20 to the outlet of the purifying cabin 20.

In the technical solution provided in the embodiment of the present invention, the circulating fan 50 is disposed at one side of the positive pressure cabin 10, if the wind resistance of the purifying unit 60 is too high, and after the circulating fan 50 is started, because the resistance of the purifying unit 60 is greater than the positive pressure of the positive pressure cabin 10, the air inlet of the circulating fan 50 generates negative pressure, compared to the above-mentioned technology, because the air inlet of the circulating fan 50 is disposed in the positive pressure cabin, the second circulating air duct 40 connected to the air outlet of the circulating fan 50 will not be under negative pressure, and conversely, the second circulating air duct 40 will be kept under higher positive pressure, if so, the pipe wall of the second circulating air duct 40 is damaged, or the connection between the second circulating air duct 40 and the positive pressure cabin 10, and the connection between the second circulating air duct 40 and the purifying cabin 20 are not tightly sealed, and the gas in the second circulating air duct 40 will leak to the outside, without causing external contaminant gases to leak into the positive pressure chamber 10 and the purge bin 20.

In different embodiments, the positive pressure cabin 10 may be an isolation tent, a shelter, a ward, a factory building, or an equipment cabin, and realizes safety protection for the functional equipment disposed in the positive pressure cabin 10, so as to prevent external polluted gas from entering the positive pressure cabin 10 and polluting the functional equipment inside the positive pressure cabin 10 or causing health hazards to people. For example, for a leak-proof micro-positive pressure internal circulation purification system with refrigeration requirements, the functional equipment may include refrigeration equipment, a compressor, an expansion valve, and an evaporator of which may be disposed within the positive pressure compartment 10, and a condenser of which may be disposed outside the positive pressure compartment 10. For example, for a leak-proof micro-positive pressure internal circulation purification system with heating requirements, the functional equipment may include heating equipment, which may be disposed within the positive pressure compartment 10. When the outside air is polluted, the functional equipment inside the positive pressure chamber 10 is not polluted by the outside polluted gas, so that the cleaning is not required. Of course, it will be readily appreciated that the functional apparatus 80 may also be disposed within the decontamination chamber 20, such as between the decontamination unit 60 and an outlet of the decontamination chamber 20, as shown in connection with FIG. 5.

In a positive pressure maintenance protocol corresponding to the positive pressure compartment 10, in some embodiments, a positive pressure maintenance device 70 is in communication with the positive pressure compartment 10. Alternatively, in some embodiments, a positive pressure maintenance device 70 is in communication with the decontamination chamber 20.

For a relatively bulky positive pressure compartment 10, the positive pressure compartment 10 may be made of a flexible material, such as an inflatable isolation tent, for ease of handling. For a positive pressure chamber 10 of smaller volume, a metal chamber may be used. A circulation fan 50 may be fixed to the inside of the metal cabinet. Of course, the circulating fan 50 may also be fixed outside the metal cabin, and the air inlet of the circulating fan 50 is communicated with the pipe orifice of the outer wall of the metal cabin.

The positive pressure maintaining device may be a purifying ventilator, and the type of the polluted gas purified by the purifying ventilator may be the same as or different from that of the polluted gas purified by the purifying chamber 20. For example, decontamination cabin 20 may provide particulate filtration of air, while decontamination cabin 20 may not provide particulate filtration, and may provide gas filtration that is harmful to human health.

After the circulating fan 50 is arranged in the positive pressure cabin and started, a negative pressure environment may be generated at an air inlet of the circulating fan 50, in implementation, the second port of the second circulating air pipe 40 extends into the positive pressure cabin for a preset distance, and the second port of the second circulating air pipe 40 is communicated with the air inlet of the circulating fan 50. That is, the second circulation duct 40 passes through the opening of the outer wall of the positive pressure chamber 10 and then communicates with the air inlet of the circulation fan 50. The circulating fan 50 and the pipe orifice of the outer wall of the positive pressure cabin 10 have a spacing distance, so that the air inlet of the circulating fan 50 is far away from the pipe orifice of the outer wall of the positive pressure cabin 10, and the pipe orifice of the outer wall of the positive pressure cabin 10 is prevented from being in a negative pressure environment. Under the condition that the positive pressure air channel is formed in the second circulating air pipe 40, the positive pressure air channel is formed in the first circulating air pipe 30, if yes, the pipe wall of the first circulating air pipe 30 is damaged, or the joint of the first circulating air pipe 30 and the positive pressure cabin 10 and the joint of the first circulating air pipe 30 and the purifying cabin 20 are not sealed tightly, gas in the first circulating air pipe 30 leaks to the outside, and external polluted gas cannot leak into the positive pressure cabin 10 and the purifying cabin 20.

In some embodiments, when the positive pressure chamber 10 has separate equipment compartments, the positive pressure chamber 10 may include an equipment positive pressure compartment and a main body positive pressure compartment, the equipment positive pressure compartment and the main body positive pressure compartment are in communication, the smaller volume equipment positive pressure compartment may be a metal box, and the larger volume main body positive pressure compartment may be a flexible compartment.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

It will be appreciated that the relevant features of the devices described above may be referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed apparatus should not be construed to reflect the intent as follows: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

Those skilled in the art will appreciate that the components of the apparatus of the embodiments may be adapted and arranged in one or more arrangements different from the embodiments. The components of the embodiments may be combined into one component and, in addition, they may be divided into a plurality of sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the components of any apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination. The various component embodiments of the present invention may be implemented in hardware, or in a combination thereof.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or components not listed in a claim. The word "a" or "an" preceding a component or element does not exclude the presence of a plurality of such components or elements. The invention may be implemented by means of an apparatus comprising several distinct elements. In the claims enumerating several means, several of these means may be embodied by one and the same item. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.

Claims (10)

1. A leak-proof micro-positive pressure internal circulation purification system, comprising:

a positive pressure compartment;

a decontamination cabin;

the first circulating air pipe is respectively communicated with the air inlet of the positive pressure cabin and the air outlet of the purification cabin;

a first port of the second circulating air pipe is communicated with the air inlet of the purification cabin;

an air inlet of the circulating fan is arranged in the positive pressure cabin, and an air outlet of the circulating fan is detachably communicated with a second port of the second circulating air pipe; wherein

And a purification unit is arranged in the purification cabin and is used for purifying pollutants in the gas flowing from the purification cabin inlet to the purification cabin outlet.

2. The leak-resistant internal micro-pressure circulation decontamination system of claim 1,

the circulating fan is arranged in the positive pressure cabin.

3. The leak-resistant internal micro-pressure circulation decontamination system of claim 2,

and a second port of the second circulating air pipe extends into the positive pressure cabin for a preset distance and is communicated with an air inlet of the circulating fan.

4. The leak-resistant internal micro-pressure circulation decontamination system of claim 1,

the windage pressure of the purification unit is greater than the positive pressure in the positive pressure chamber.

5. The leak-resistant internal micro-pressure circulation decontamination system of claim 1,

and a positive pressure air duct is formed in the second circulating air duct.

6. The leak-resistant internal micro-pressure circulation decontamination system of claim 1,

and a positive pressure air duct is formed in the first circulating air duct.

7. The leak-resistant internal micro-positive pressure circulation purification system as recited in claim 1, further comprising:

and the functional equipment is arranged in the positive pressure cabin.

8. The leak-resistant internal micro-pressure circulation decontamination system of claim 7,

the functional device comprises at least one of a heating device and a cooling device.

9. The leak-resistant internal micro-positive pressure circulation purification system as recited in claim 1, further comprising:

a positive pressure maintenance device in communication with the positive pressure compartment or the decontamination chamber.

10. The leak-resistant internal micro-pressure circulation decontamination system of claim 1,

the working pressure of the positive pressure cabin is 1.013 multiplied by 10⁵+20Pa to 1.013X 10⁵+100Pa。

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