CN113983595A - Positive pressure protection micro-positive pressure internal circulation purification system - Google Patents

Abstract

The embodiment of the invention relates to a positive pressure protection 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 micro-positive pressure internal circulation purification system. The micro-positive pressure internal circulation purification system comprises: a positive pressure compartment; a decontamination cabin; the first circulating air pipe is respectively and detachably communicated with an air inlet of the positive pressure cabin and an air outlet of the purification cabin; the first port of the second circulating air pipe is detachably communicated with the air outlet of the positive pressure cabin; the circulating fan is arranged in the purifying cabin, an air inlet of the circulating fan is detachably communicated with a second port of the second circulating air pipe, and an air outlet of the circulating fan is positioned in the purifying cabin; the positive pressure protective air pipe is sleeved on the periphery of the second circulating air pipe; wherein a purifying unit is arranged in the purifying cabin and is used for purifying pollutants in the gas flowing from the inlet of the purifying cabin to the outlet of the purifying cabin. The outside polluted gas can not be leaked into the positive pressure cabin and the purifying cabin.

Description

Positive pressure protection 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:

the embodiment of the invention provides a positive pressure protection micro-positive pressure internal circulation purification system, which comprises:

a positive pressure compartment;

a decontamination cabin;

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

the first port of the second circulating air pipe is detachably communicated with the positive pressure cabin air outlet;

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

the positive pressure protection air pipe is sleeved on the periphery 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 positive pressure protected micro-positive pressure internal circulation purification system further includes:

and the positive pressure maintaining equipment is communicated with the positive pressure protection air pipe.

Optionally, the air outlet of circulating fan includes first export and second export, first export with communicate in the clean cabin, the second export with malleation protection tuber pipe intercommunication.

Optionally, in the positive-pressure protected micro-positive-pressure internal circulation purification system, the second outlet is an annular air port surrounding the periphery of an air inlet of the circulating fan;

the first port of the second circulating air pipe is connected with the inner ring of the annular air port, the first port of the positive pressure protection air pipe is connected with the outer ring of the annular air port, the second port of the second circulating air pipe is communicated with the positive pressure cabin, and the air port between the second port of the positive pressure protection air pipe and the second port of the second circulating air pipe is blocked.

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

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

Optionally, the positive pressure protection micro-positive pressure internal circulation purification system is provided, wherein a positive pressure air duct is formed in the first circulation air duct.

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

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

Optionally, the positive pressure protected 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 positive pressure protected micro-positive pressure internal circulation purification system is provided, wherein the working pressure of the positive pressure chamber is 1.013 × 10⁵+20Pa to 1.013X 10⁵+100Pa。

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

according to the technical scheme provided by the embodiment of the invention, the circulating fan is arranged on one side of the purification cabin, if the wind resistance of the purification unit is too high, and after the circulating fan is started, the resistance of the purification unit is greater than the positive pressure of the positive pressure cabin, so that the air inlet of the circulating fan generates negative pressure, the second circulating air pipe connected with the air inlet of the circulating fan is in negative pressure. The pipe wall of the second circulating air pipe is damaged, and gas in the positive-pressure protective air pipe can leak into the second circulating air pipe, so that external polluted gas cannot leak into the positive-pressure cabin and the purifying 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 another positive pressure protected internal micro-pressure circulation decontamination system provided by an embodiment of the present invention;

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

FIG. 4 is a schematic diagram of a positive pressure internal circulation purification system with positive pressure protection according to another embodiment of the present invention;

FIG. 5 is a schematic diagram of another positive pressure protected internal micro-pressure purification system with a decontamination chamber according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a positive pressure protected micro-positive pressure internal circulation purification system provided by an embodiment of the invention;

fig. 7 is a schematic structural diagram of another positive pressure protected micro-positive pressure internal circulation purification system provided by an embodiment of the 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. 7 are embodiments of a positive pressure protection micro-positive pressure internal circulation purification system provided by the present invention, please refer to fig. 2 to fig. 7, an embodiment of the present invention provides a positive pressure protection micro-positive pressure internal circulation purification system, including: the device comprises a positive pressure cabin 10, a purifying cabin 20, a first circulating air pipe 30, a second circulating air pipe 40, a circulating fan 50 and a positive pressure protection air pipe 60.

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 outlet of the positive pressure cabin 10; the circulating fan 50 is arranged in the purification cabin 20, an air inlet of the circulating fan 50 is detachably communicated with a second port of the second circulating air pipe 40, and an air outlet of the circulating fan 50 is located in the purification cabin 20; the positive pressure protection air pipe 60 is sleeved on the periphery of the second circulating air pipe 40. Wherein a purifying unit 70 is arranged in the purifying cabin 20, and the purifying unit 70 is used for purifying pollutants in the gas flowing from the purifying cabin inlet to the purifying cabin outlet.

In the technical scheme provided by the embodiment of the invention, the circulating fan 50 is arranged at one side of the purification cabin 20, if the wind resistance of the purification unit 70 is too high, and after the circulating fan 50 is started, the resistance of the purification unit 70 is greater than the positive pressure of the positive pressure cabin 10, so that the air inlet of the circulating fan 50 generates negative pressure, the second circulating air pipe 40 connected with the air inlet of the circulating fan 50 is under negative pressure, compared with the above technology, because the positive pressure protection air pipe 60 is sleeved at the periphery of the second circulating air pipe 40, if the pipe wall of the positive pressure protection air pipe 60 is damaged, the gas in the positive pressure protection air pipe 60 can leak outwards, and the external pollution gas can not leak into the positive pressure protection air pipe 60. The pipe wall of the second circulating air pipe 40 is damaged, and the gas in the positive pressure protection air pipe 60 can leak into the second circulating air pipe 40, so that the external polluted gas cannot leak into the positive pressure cabin 10 and the purification cabin 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 positive pressure protected 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 the refrigeration equipment may be disposed within the positive pressure compartment 10, and a condenser of the refrigeration equipment may be disposed outside the positive pressure compartment 10. For example, for a positive pressure protected micro-positive pressure internal circulation purification system with a heating requirement, 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 90 may also be disposed within the decontamination chamber 20, such as between the decontamination unit 70 and an outlet of the decontamination chamber 20, as shown in connection with FIG. 5.

In a positive pressure maintenance scheme corresponding to the positive pressure compartment 10, in some embodiments, a positive pressure maintenance device 81 is in communication with the positive pressure compartment 10. Alternatively, in some embodiments, a positive pressure maintenance device 81 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.

The circulation fan 50 may be fixed to the inside of the clean room 20. Of course, the circulating fan 50 may also be fixed outside the purification cabin 20, and the air inlet of the circulating fan 50 is communicated with the pipe orifice on the outer wall of the purification cabin 20.

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.

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.

Wherein, circulating fan 50 sets up the back that starts in the malleation cabin, under the condition that forms the negative pressure wind channel in second circulation tuber pipe 40, form the malleation wind channel in the first circulation tuber pipe 30, if, the damage takes place for the pipe wall of first circulation tuber pipe 30, or, the junction of first circulation tuber pipe 30 and malleation cabin 10, the junction of first circulation tuber pipe 30 and clean room 20 is not sealed tight, and the gaseous meeting takes place to leak outside in the first circulation tuber pipe 30, and can not lead to outside gaseous pollutants to leak and enter into malleation cabin 10, clean room 20.

As shown in fig. 6, the positive pressure protection duct 60 is communicated with a positive pressure maintaining device to maintain the positive pressure in the positive pressure protection duct 60. The positive pressure maintaining equipment can be a purifying and ventilating device 82, and an air outlet of the purifying and ventilating device 82 is communicated with the positive pressure protection air pipe 60.

In the implementation, the positive pressure protection air pipe 60 is connected with the pipe orifice of the positive pressure cabin 10 and the pipe orifice of the purification cabin 20, if so, the joint of the positive pressure protection air pipe 60 and the positive pressure cabin 10 and the joint of the positive pressure protection air pipe 60 and the purification cabin 20 are not sealed tightly, and the gas in the positive pressure protection air pipe 60 leaks to the outside, so that the outside polluted gas cannot leak into the positive pressure cabin 10 and the purification cabin 20.

If extra positive pressure maintaining equipment is adopted to supply air pressure to the positive pressure protection pipe, the cost is high, and the assembly time is long. In the technical solution provided in this embodiment, as shown in fig. 7, the air outlet of the circulation fan 50 includes a first outlet 51 and a second outlet 52, the first outlet 51 is communicated with the interior of the purification cabin 20, and the second outlet 52 is communicated with the positive pressure protection air duct 60. After the circulation fan 50 is started, a part of the airflow drawn by the circulation fan 50 from the positive pressure chamber 10 is blown to the first outlet 51, enters the clean room 20, and a part of the airflow is blown to the second outlet 52, so that the positive pressure is maintained between the positive pressure protection pipe and the pipe wall of the second circulation air pipe 40.

In a specific implementation, the second outlet 52 and the positive pressure protection tube may be connected by an additional connecting line. In some implementations, the second outlet 52 is an annular tuyere that surrounds the periphery of the air inlet of the circulation fan 50; the first port of the second circulating air pipe 40 is connected with the inner ring of the annular air port, the first port of the positive pressure protection air pipe 60 is connected with the outer ring of the annular air port, the second port of the second circulating air pipe 40 is communicated with the positive pressure cabin 10, and the annular air port between the second port of the positive pressure protection air pipe 60 and the second port of the second circulating air pipe 40 is blocked. The positive pressure protection pipe and the second circulation duct 40 may be an integral pipe member, thereby facilitating assembly. In the assembly process, the first end of the integrated pipe fitting is connected with the purifying cabin 20, so that the air inlet of the circulating fan 50 is communicated with the second circulating air pipe 40, and the annular air inlet is communicated with the positive pressure protective pipe. And the second end of the integrated pipe fitting is connected with the positive pressure cabin 10, so that the positive pressure cabin 10 is communicated with the second circulating air pipe 40, and the positive pressure protective pipe is connected with the pipe orifice outside the positive pressure cabin 10.

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. The utility model provides a pressure-fired protection's internal circulation clean system of pressure-fired, includes:

a positive pressure compartment;

a decontamination cabin;

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

the first port of the second circulating air pipe is detachably communicated with the positive pressure cabin air outlet;

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

the positive pressure protection air pipe is sleeved on the periphery 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 positive pressure protected internal micro-positive pressure circulation purification system of claim 1, further comprising:

and the positive pressure maintaining equipment is communicated with the positive pressure protection air pipe.

3. The positive pressure protected micro-positive pressure internal circulation purification system of claim 1,

the air outlet of the circulating fan comprises a first outlet and a second outlet, the first outlet is communicated with the interior of the purification cabin, and the second outlet is communicated with the positive pressure protection air pipe.

4. The positive pressure protected micro-positive pressure internal circulation purification system of claim 3,

the second outlet is an annular air port surrounding the periphery of an air inlet of the circulating fan;

the first port of the second circulating air pipe is connected with the inner ring of the annular air port, the first port of the positive pressure protection air pipe is connected with the outer ring of the annular air port, the second port of the second circulating air pipe is communicated with the positive pressure cabin, and the air port between the second port of the positive pressure protection air pipe and the second port of the second circulating air pipe is blocked.

5. The positive pressure protected micro-positive pressure internal circulation purification system of claim 1,

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

6. The positive pressure protected micro-positive pressure internal circulation purification system of claim 1,

and a negative pressure air channel is formed in the second circulating air pipe.

7. The positive pressure protected micro-positive pressure internal circulation purification system of claim 1,

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

8. The positive pressure protected internal micro-positive pressure circulation purification system of claim 1, further comprising:

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

9. The positive pressure protected internal micro-positive pressure circulation purification system of claim 1, further comprising:

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

10. The positive pressure protected micro-positive pressure internal circulation purification 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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