CN216284525U - Compressed air diffuser with multistage decompression chamber - Google Patents
Compressed air diffuser with multistage decompression chamber Download PDFInfo
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- CN216284525U CN216284525U CN202122591644.0U CN202122591644U CN216284525U CN 216284525 U CN216284525 U CN 216284525U CN 202122591644 U CN202122591644 U CN 202122591644U CN 216284525 U CN216284525 U CN 216284525U
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Abstract
The utility model discloses a compressed air diffuser with a multistage decompression chamber, wherein N clapboards are arranged in the compressed air diffuser, a cavity in the compressed air diffuser is divided into a first-stage decompression chamber, a second-stage decompression chamber and an (N + 1) -th-stage decompression chamber which are mutually isolated, the first-stage decompression chamber is communicated with an air inlet of the compressed air diffuser, the (N + 1) -th-stage decompression chamber is communicated with an air outlet of the compressed air diffuser, and N is more than or equal to 1; each partition plate is provided with a diffusion through hole, and a diffusion valve is arranged on each diffusion through hole; a decompression through hole is formed in the bulkhead of each stage of decompression chamber, and a decompression valve is mounted on the decompression through hole; the internal pressure of the first-stage decompression chamber, the second-stage decompression chamber to the (N + 1) th-stage decompression chamber is decreased gradually. The utility model separates the inside of the compressed air diffuser into a multi-stage decompression chamber, can gradually reduce the pressure in the chamber, has good decompression effect, stable sampling from the air outlet of the (N + 1) th stage decompression chamber, and accurate detection of the dust particle counter and the planktonic bacteria sampler on the sampled sample.
Description
Technical Field
The present invention relates to air diffusers, and in particular to a compressed air diffuser having a multistage decompression chamber.
Background
The compressed air diffuser is a decompression device convenient for detecting dust particles and planktonic bacteria in compressed air, and the pressure of the compressed air can be adjusted by utilizing the one-way decompression valve, so that the indoor and outdoor pressure difference of the compressed air in the detection cabin is not more than 200Pa, and the detection of a dust particle counter and a planktonic bacteria sampler is facilitated. However, the conventional compressed air diffuser has a poor decompression effect due to the use of a decompression chamber.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problem, the present invention proposes a compressed air diffuser having a multistage decompression chamber.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
a compressed air diffuser with multi-stage decompression chambers is characterized in that N partition plates are arranged in the compressed air diffuser, a first-stage decompression chamber, a second-stage decompression chamber and an (N + 1) -th-stage decompression chamber which are mutually isolated are separated from a cavity in the compressed air diffuser, the first-stage decompression chamber is communicated with an air inlet of the compressed air diffuser, the (N + 1) -th-stage decompression chamber is communicated with an air outlet of the compressed air diffuser, and N is more than or equal to 1;
each partition plate is provided with a diffusion through hole, and a diffusion valve is arranged on each diffusion through hole;
a decompression through hole is formed in the bulkhead of each stage of decompression chamber, and a decompression valve is mounted on the decompression through hole;
the internal pressure of the first-stage decompression chamber, the second-stage decompression chamber to the (N + 1) th-stage decompression chamber is decreased gradually.
The utility model separates the inside of the compressed air diffuser into a multi-stage decompression chamber, can gradually reduce the pressure in the chamber, has good decompression effect, more stable sampling from the air outlet of the (N + 1) th stage decompression chamber, and more accurate detection of the dust particle counter and the planktonic bacteria sampler on the sampled sample.
On the basis of the technical scheme, the following improvements can be made:
preferably, the diffusion valve is a one-way valve capable of automatically adjusting the opening degree according to the pressure difference between two adjacent compartments.
By adopting the preferable scheme, the pressure in the next-stage decompression chamber is not greater than the preset value.
Preferably, the pressure reducing valve is a check valve whose opening degree can be automatically adjusted according to the pressure in the decompression chamber.
By adopting the preferable scheme, the corresponding decompression chamber is decompressed, and the one-way valve can ensure that the outside air can not pollute the inside of the chamber body.
Preferably, the first-stage decompression chamber, the second-stage decompression chamber to the (N + 1) -th-stage decompression chamber are arranged in this order in the longitudinal direction of the compressed air diffuser.
By adopting the preferable scheme, the stability of the airflow is ensured.
Preferably, the decompression through-hole of the first-stage decompression chamber is opened at a position close to a partition for partitioning the first-stage decompression chamber and the second-stage decompression chamber.
By adopting the preferable scheme, the pressure reduction effect is good.
Preferably, the decompression through hole of the ith stage decompression chamber is opened at a position close to a partition plate for partitioning the ith-1 stage decompression chamber and the ith stage decompression chamber, and i is 2,3 …, N.
By adopting the preferable scheme, the airflow passing through the partition plate diffusion valve is subjected to rapid pressure reduction treatment.
Preferably, the volume of the i +1 th stage decompression chamber is smaller than that of the i th stage decompression chamber, and i is 1,2 …, N.
By adopting the preferable scheme, the diffusion efficiency of the airflow is high, and the stability of pressure reduction is further improved.
Preferably, the size of the diffusion through hole in the partition for separating the i +1 th stage decompression chamber from the i-th stage decompression chamber is smaller than the size of the diffusion through hole in the partition for separating the i-th stage decompression chamber from the i-1 st stage decompression chamber, i is 2,3 …, N;
or the like, or, alternatively,
the number of diffusion through holes in the partition for separating the (i + 1) th stage decompression chamber from the (i) th stage decompression chamber is smaller than the number of diffusion through holes in the partition for separating the (i) th stage decompression chamber from the (i-1) th stage decompression chamber, i being 2,3 …, N.
By adopting the preferable scheme, the diffusion efficiency of the airflow is high, and the stability of pressure reduction is further improved.
Preferably, the compressed air diffuser includes: the diffuser body and install in its relative both ends first end cover and second end cover, the air inlet sets up on first end cover, and the gas outlet sets up on the second end cover.
Adopt above-mentioned preferred scheme, simple structure, it is convenient to install.
Preferably, the diffuser body and the baffle are of an integral structure.
By adopting the preferable scheme, the mechanical strength is high, no gap exists between the partition plate and the diffuser body, and the isolation effect between the adjacent decompression chambers is good.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic view of a compressed air diffuser having a two-stage decompression chamber according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a compressed air diffuser having a three-stage decompression chamber according to an embodiment of the present invention.
Wherein: 1-a compressed air diffuser, 10-a diffuser body, 11-a first end cover, 12-a second end cover, 21-a first partition, 22-a second partition, 31-a first stage decompression chamber, 32-a second stage decompression chamber, 41-an air inlet, 42-an air outlet, 51-a first diffusion through hole, 52-a second diffusion through hole, 61-a first diffusion valve, 62-a second diffusion valve, 71-a first decompression through hole, 72-a second decompression through hole, 73-a third decompression through hole, 81-a first decompression valve, 82-a second decompression valve, 83-a third decompression valve, 91-an air inlet terminal, 92-a sampling tube.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, 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 invention.
The use of the ordinal terms "first," "second," "third," etc., to describe a common object merely indicate that different instances of like objects are being referred to, and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.
Also, the expression "comprising" an element is an expression of "open" which merely means that there is a corresponding component, and should not be interpreted as excluding additional components.
In order to achieve the object of the present invention, in some embodiments of a compressed air diffuser having a plurality of decompression chambers, as shown in fig. 1, a first partition 21 is provided inside the compressed air diffuser 1 to partition the cavity inside the compressed air diffuser 1 into a first-stage decompression chamber 31 and a second-stage decompression chamber 32 which are isolated from each other, the first-stage decompression chamber 31 is communicated with an air inlet 41 of the compressed air diffuser 1, and the second-stage decompression chamber 32 is communicated with an air outlet 42 of the compressed air diffuser 1;
a first diffusion through hole 51 is formed in the first separator 21, and a first diffusion valve 61 is mounted on the first diffusion through hole 51;
a first decompression through hole 71 and a second decompression through hole 72 are respectively formed in the bulkheads of the first-stage decompression chamber 31 and the second-stage decompression chamber 32, and a first decompression valve 81 and a second decompression valve 82 are respectively mounted on the first decompression through hole 71 and the second decompression through hole 72;
the internal pressure of the second stage decompression chamber 32 is lower than the internal pressure of the first stage decompression chamber 31.
The number of the first diffusion through holes 51 may be one or more.
The utility model divides the inside of the compressed air diffuser 1 into a multi-stage decompression chamber, can gradually reduce the pressure in the chamber, has good decompression effect, more stable sampling from the air outlet 42 of the (N + 1) th stage decompression chamber, and more accurate detection of the dust particle counter and the planktonic bacteria sampler on the sampled sample.
In order to further optimize the implementation effect of the present invention, in other embodiments, the remaining features are the same, except that the first diffusion valve 61 is a one-way valve capable of automatically adjusting the opening degree according to the pressure difference between the first decompression chamber and the second decompression chamber.
With the adoption of the embodiment, the following beneficial effects are achieved: and ensuring that the pressure in the second decompression chamber is not greater than a preset value.
In order to further optimize the implementation effect of the utility model, in other embodiments, the rest of the features are the same, except that the first pressure reducing valve 81 and the second pressure reducing valve 82 are both one-way valves capable of automatically adjusting the opening degree according to the pressure in the corresponding decompression chamber.
With the adoption of the embodiment, the following beneficial effects are achieved: the corresponding decompression chamber is decompressed, and the one-way valve can ensure that the outside air can not pollute the inside of the chamber body. The first and second pressure reducing valves 81 and 82 may be, but are not limited to, a spring diaphragm structure.
Specifically, when the compressed air in the first-stage decompression chamber 31 is greater than 0.2MPa, the first decompression valve 81 automatically opens the bleed air, and the valve opening is increased as the pressure is increased, so that the compressed air is reduced to 0.2MPa or less. When the pressure in the second-stage decompression chamber 32 is greater than 200Pa, the second pressure reducing valve 82 is automatically opened, and the valve opening is increased as the pressure is increased, so that the pressure in the second-stage decompression chamber 32 is reduced to 200Pa or less.
In order to further optimize the working effect of the utility model, in other embodiments the remaining features are the same, except that the first stage decompression chamber 31 and the second stage decompression chamber 32 are arranged in series along the length of the compressed air diffuser 1.
With the adoption of the embodiment, the following beneficial effects are achieved: the stability of the airflow is ensured.
In order to further optimize the effect of the present invention, in other embodiments, the remaining features are the same, except that the first decompression through hole 71 and the second decompression through hole 72 are both opened at positions close to the partition plate.
With the adoption of the embodiment, the following beneficial effects are achieved: the pressure reduction effect is good.
In order to further optimize the working effect of the utility model, in other embodiments, the remaining features are the same, except that the volume of the second stage decompression chamber 32 is smaller than the volume of the first stage decompression chamber 31.
With the adoption of the embodiment, the following beneficial effects are achieved: the diffusion efficiency of the airflow is high, and the stability of pressure reduction is further improved.
In order to further optimize the working effect of the utility model, in other embodiments, the remaining features are the same, except that the compressed air diffuser 1 comprises: the diffuser includes a diffuser body 10, and a first end cap 11 and a second end cap 12 mounted to opposite ends of the diffuser body, an air inlet 41 disposed on the first end cap 11, and an air outlet 42 disposed on the second end cap 12.
With the adoption of the embodiment, the following beneficial effects are achieved: simple structure, it is convenient to install. The first end cap 11 and the second end cap 12 are detachably connected to the diffuser body 10, which facilitates later maintenance.
It is noted that an air inlet terminal 91 is installed at the air inlet 41 of the first end cap 11, and a sampling tube 92 may be inserted at the air outlet 42 of the second end cap 12. The air outlet 42 is a sampling port which is an automatic sealing port and is automatically opened after the sampling tube is inserted and automatically closed after the sampling tube is pulled out. The outside air can not pollute the interior of the bin body.
Further, the diffuser body 10 and the first partition 21 are of an integral structure.
With the adoption of the embodiment, the following beneficial effects are achieved: the mechanical strength is high, no gap is formed between the first partition plate 21 and the diffuser body 10, and the isolation effect between adjacent decompression chambers is good.
It is noted that the above is a description of two decompression chambers, and that the case of three decompression chambers will be described below.
As shown in fig. 2, a first partition 21 and a second partition 22 are provided inside the compressed air diffuser 1, and the cavity inside the compressed air diffuser 1 is partitioned into a first-stage decompression chamber 31, a second-stage decompression chamber 32 and a third-stage decompression chamber which are isolated from each other, wherein the first-stage decompression chamber 31 is communicated with an air inlet 41 of the compressed air diffuser 1, and the third-stage decompression chamber is communicated with an air outlet 42 of the compressed air diffuser 1;
a first diffusion through hole 51 is formed in the first partition plate 21, a first diffusion valve 61 is installed on the first diffusion through hole 51, a second diffusion through hole 52 is formed in the second partition plate 22, and a second diffusion valve 62 is installed on the second diffusion through hole 52;
a first decompression through hole 71, a second decompression through hole 72 and a third decompression through hole 73 are respectively arranged on bulkheads of the first-stage decompression chamber 31, the second-stage decompression chamber 32 and the third-stage decompression chamber, and a first decompression valve 81, a second decompression valve 82 and a third decompression valve 83 are respectively arranged on the first decompression through hole 71, the second decompression through hole 72 and the third decompression through hole 73;
the internal pressures of the first-stage decompression chamber 31, the second-stage decompression chamber 32 and the third-stage decompression chamber are decreased gradually.
Furthermore, any diffusion valve is a one-way valve capable of automatically adjusting the opening according to the pressure difference between two adjacent chambers.
Furthermore, any pressure reducing valve is a one-way valve capable of automatically adjusting the opening according to the pressure in the corresponding pressure reducing chamber.
Further, the first-stage decompression chamber 31, the second-stage decompression chamber 32 to the third-stage decompression chamber are arranged in this order along the length direction of the compressed air diffuser 1.
Further, the first decompression through hole 71 is opened at a position close to the first partition plate 21;
the second decompression through hole 72 is opened at a position close to the first partition plate 21;
the third decompression through hole 73 is opened at a position close to the second partition plate 22.
The further improved embodiment has the following beneficial effects: and carrying out rapid depressurization treatment on the airflow passing through the partition plate diffusion valve.
Further, the volume of the second-stage decompression chamber 32 is smaller than the volume of the first-stage decompression chamber 31;
the volume of the third stage decompression chamber is smaller than the volume of the second stage decompression chamber 32.
The further improved embodiment has the following beneficial effects: the diffusion efficiency of the airflow is high, and the stability of pressure reduction is further improved.
Further, the size of the second diffusion through holes 52 in the second partition 22 is smaller than the size of the first diffusion through holes 51 in the first partition 21, or the number of the second diffusion through holes 52 in the second partition 22 is smaller than the number of the first diffusion through holes 51 in the first partition 21.
The further improved embodiment has the following beneficial effects: the diffusion efficiency of the airflow is high, and the stability of pressure reduction is further improved.
The various embodiments above may be implemented in cross-parallel.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
While there have been shown and described what are at present considered to be the fundamental principles of the utility model and its essential features and advantages, it will be understood by those skilled in the art that the utility model is not limited by the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (10)
1. A compressed air diffuser with multi-stage decompression chambers is characterized in that N partition plates are arranged in the compressed air diffuser, a cavity in the compressed air diffuser is divided into a first-stage decompression chamber, a second-stage decompression chamber and an (N + 1) -th-stage decompression chamber which are mutually isolated, the first-stage decompression chamber is communicated with an air inlet of the compressed air diffuser, the (N + 1) -th-stage decompression chamber is communicated with an air outlet of the compressed air diffuser, and N is more than or equal to 1;
each partition plate is provided with a diffusion through hole, and a diffusion valve is arranged on each diffusion through hole;
a decompression through hole is formed in the bulkhead of each stage of decompression chamber, and a decompression valve is mounted on the decompression through hole;
and the internal pressures of the first-stage decompression chamber, the second-stage decompression chamber and the (N + 1) th-stage decompression chamber are gradually decreased.
2. The compressed air diffuser of claim 1, wherein said diffuser valve is a one-way valve having an opening that is automatically adjustable according to a pressure difference between two adjacent compartments.
3. The compressed air diffuser of claim 1 wherein said pressure reducing valve is a one-way valve having an opening that is automatically adjustable according to the pressure level within the associated decompression chamber.
4. The compressed air diffuser of claim 1 wherein the first stage decompression chamber, second stage decompression chamber to (N + 1) th stage decompression chamber are arranged in sequence along the length of the compressed air diffuser.
5. The compressed air diffuser of claim 1 wherein the decompression through-holes of the first stage decompression chamber open at a position adjacent to a partition separating the first and second stage decompression chambers.
6. The compressed air diffuser of claim 5 wherein the decompression orifice of the i-th stage decompression chamber opens adjacent to a partition separating the i-1 th and i-th stage decompression chambers, i-2, 3 …, N.
7. The compressed air diffuser of claim 1 wherein the volume of the i +1 th stage decompression chamber is less than the volume of the i stage decompression chamber, i-1, 2 …, N.
8. The compressed air diffuser of claim 1 wherein the size of the diffusing through-holes in the partition separating the i +1 th stage decompression chamber from the i-1 th stage decompression chamber is smaller than the size of the diffusing through-holes in the partition separating the i-stage decompression chamber from the i-1 st stage decompression chamber, i being 2,3 …, N;
or the like, or, alternatively,
the number of diffusion through holes in the partition for separating the (i + 1) th stage decompression chamber from the (i) th stage decompression chamber is smaller than the number of diffusion through holes in the partition for separating the (i) th stage decompression chamber from the (i-1) th stage decompression chamber, i being 2,3 …, N.
9. The compressed air diffuser of any one of claims 1 to 8, comprising: the diffuser comprises a diffuser body, a first end cover and a second end cover, wherein the first end cover and the second end cover are installed at two opposite ends of the diffuser body, an air inlet is formed in the first end cover, and an air outlet is formed in the second end cover.
10. The compressed air diffuser of claim 9 wherein the diffuser body and baffle are of a unitary construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122591644.0U CN216284525U (en) | 2021-10-27 | 2021-10-27 | Compressed air diffuser with multistage decompression chamber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122591644.0U CN216284525U (en) | 2021-10-27 | 2021-10-27 | Compressed air diffuser with multistage decompression chamber |
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| Publication Number | Publication Date |
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| CN216284525U true CN216284525U (en) | 2022-04-12 |
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| CN202122591644.0U Active CN216284525U (en) | 2021-10-27 | 2021-10-27 | Compressed air diffuser with multistage decompression chamber |
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- 2021-10-27 CN CN202122591644.0U patent/CN216284525U/en active Active
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