CN217662085U - Pretreatment device of generator nitrogen replacement system - Google Patents
Pretreatment device of generator nitrogen replacement system Download PDFInfo
- Publication number
- CN217662085U CN217662085U CN202220423975.5U CN202220423975U CN217662085U CN 217662085 U CN217662085 U CN 217662085U CN 202220423975 U CN202220423975 U CN 202220423975U CN 217662085 U CN217662085 U CN 217662085U
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- gas
- adsorption
- nitrogen gas
- pipe
- generator
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 118
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 37
- 238000001179 sorption measurement Methods 0.000 claims abstract description 64
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 58
- 239000007789 gas Substances 0.000 claims abstract description 50
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 238000007781 pre-processing Methods 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000001681 protective effect Effects 0.000 claims description 16
- 238000006467 substitution reaction Methods 0.000 claims description 15
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 15
- 238000001914 filtration Methods 0.000 abstract description 8
- 239000002808 molecular sieve Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- OLBVUFHMDRJKTK-UHFFFAOYSA-N [N].[O] Chemical compound [N].[O] OLBVUFHMDRJKTK-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
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- Separation Of Gases By Adsorption (AREA)
Abstract
The utility model discloses a generator nitrogen gas replacement system preprocessing device, which relates to the field of generator auxiliary equipment, and comprises a nitrogen gas bottle, a preprocessing component, a nitrogen gas bottle, a first gas pipe, a second gas pipe and a third gas pipe, wherein the preprocessing component comprises a first sealing flange, an adsorption mechanism and a filter element; when the nitrogen cylinder carries out nitrogen gas output, through the filter core that adsorption apparatus constructs and adsorption apparatus constructs both ends setting, can carry out adsorption treatment to a small amount of air that contains in the output nitrogen gas in, can also carry out filtration treatment to the particulate impurity who contains in the nitrogen gas to this guarantee carries the holistic purity of nitrogen gas.
Description
Technical Field
The utility model relates to a generator auxiliary assembly technical field, especially a generator nitrogen gas replacement system preprocessing device.
Background
The nitrogen substitution device is a gas substitution apparatus used before a pipe or a container through which a combustible gas passes is used. Because the nitrogen is inactive in chemical property, the nitrogen is not easy to react with other substances, and the nitrogen has the characteristic of being lighter than liquefied petroleum gas and is replaced by the pressure of a nitrogen cylinder. At present, the preprocessing device that generator nitrogen gas replacement system used function is too single, when the nitrogen cylinder carried out nitrogen gas output, preprocessing device can not carry out adsorption treatment to a small amount of air that contains in the nitrogen gas, also can not carry out filtration treatment to the impurity in the nitrogen gas to influence the holistic purity of nitrogen gas, for this reason, we need develop a generator nitrogen gas replacement system preprocessing device.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems occurring in the prior art.
Therefore, the utility model aims to solve the problem of how to provide a generator nitrogen gas replacement system preprocessing device.
In order to solve the technical problem, the utility model provides a following technical scheme: a pretreatment device of a generator nitrogen replacement system comprises,
a nitrogen cylinder and a pretreatment assembly;
the nitrogen cylinder comprises a first gas pipe, a second gas pipe and a third gas pipe, wherein the second gas pipe penetrates through one side of the middle part of the first gas pipe, and one end of the second gas pipe penetrates through the third gas pipe;
the pretreatment assembly comprises first sealing flanges, an adsorption mechanism and a filter element, wherein the adsorption mechanism is arranged between the first sealing flanges, and the filter element is arranged between the two ends of the adsorption mechanism and the first sealing flanges respectively.
Based on the technical characteristics: the first sealing flange is connected with the adsorption mechanism, so that the connection tightness of the first sealing flange and the adsorption mechanism can be improved, and nitrogen gas can be effectively prevented from leaking and spraying from a gap where the first sealing flange and the adsorption mechanism are connected; when the nitrogen cylinder carries out nitrogen gas output, through the filter core that sets up at adsorption device and adsorption device both ends, can carry out adsorption treatment to a small amount of air that contains in the output nitrogen gas in, can also carry out filtration treatment to the particulate impurity who contains in the nitrogen gas to this guarantees the holistic purity of transport nitrogen gas.
As a preferred scheme of generator nitrogen gas replacement system preprocessing device, wherein: the first gas pipe comprises a pressure reducing valve, the pressure reducing valve is arranged on one side, close to the pretreatment assembly, of the first gas pipe, a main exhaust valve is arranged on one side, away from the pressure reducing valve, of the first gas pipe, and an exhaust port is further formed in one end, away from the main exhaust valve, of the first gas pipe.
Based on the technical characteristics: through relief pressure valve and exhaust main valve, the nitrogen cylinder conveniently carries out pressure release and on-off control to the nitrogen gas of output.
As a generator nitrogen gas replacement system preprocessing device's an optimal selection scheme, wherein: the second gas-supply pipe includes the off-load valve, the mid-mounting who keeps away from the off-load valve on the second gas-supply pipe has needle valve one, one side of keeping away from needle valve one on the second gas-supply pipe still is provided with the vacuum gauge.
Based on the technical characteristics: through the structure of the unloading valve, the needle valve I and the vacuum meter, flow regulation and pressure value detection are conveniently carried out on the conveyed nitrogen.
As a preferred scheme of generator nitrogen gas replacement system preprocessing device, wherein: one end of the second gas pipe close to the vacuum meter and one end of the third gas pipe close to the vacuum meter are connected with a needle valve II in a penetrating mode, and a vacuum pump is further installed at one end, far away from the needle valve II, of the third gas pipe.
Based on the technical characteristics: through the needle valve II and the vacuum pump structure, the interior of the generator which needs nitrogen replacement can be vacuumized.
As a preferred scheme of generator nitrogen gas replacement system preprocessing device, wherein: the first sealing flange comprises an airtight groove, and a core groove is formed in the middle of the airtight groove.
Based on the technical characteristics: through inserting the ring joint with airtight and connecting in the inside in airtight groove, can promote the leakproofness of first sealing flange and the sealed flange joint of second, can also effectively avoid nitrogen gas to leak the blowout from the gap department that first sealing flange and the sealed flange joint of second.
As a preferred scheme of generator nitrogen gas replacement system preprocessing device, wherein: the adsorption mechanism comprises an adsorption cylinder, and second sealing flanges are respectively installed at two ends of the adsorption cylinder.
Based on the technical characteristics: through installing the filter core in the core groove of first sealed flange and second sealed flange, can be with crossing the spacing both ends of fixing at an adsorption cylinder of filter core, when convenient particle impurity filtration treatment to containing in the nitrogen gas, can also avoid crossing the impurity that filters out and get into the inside of adsorbing a section of thick bamboo to effectively avoid adsorbing a section of thick bamboo and taking place by circumstances such as impurity contamination.
As a preferred scheme of generator nitrogen gas replacement system preprocessing device, wherein: the adsorption cylinder comprises a protective shell, a protective inner container is arranged inside the protective shell, and an adsorption filter screen is filled inside the protective inner container.
Based on the technical characteristics: through protective housing and protection inner bag structure, can play the effect of double-deck protection to the adsorption cylinder, when the outer wall of adsorption cylinder or a certain position of inner wall take place the damage, can effectively avoid nitrogen gas from the damaged position of adsorption cylinder to reveal out, the filter screen structure is adsorbed in the cooperation, because of adsorbing the filter screen and compriseing high-quality carbon molecular sieve, under application pressure swing adsorption principle and the molecular sieve effect that utilizes to be full of the micro-molecule, can carry out selective absorption to the air, can also reach the purpose of oxygen nitrogen separation, thereby can promote the holistic purity of nitrogen gas.
As a generator nitrogen gas replacement system preprocessing device's an optimal selection scheme, wherein: and a plurality of groups of fixing through holes are formed in one side of the second sealing flange, and an airtight inserting ring is further arranged on one side, away from the second sealing flange, of each fixing through hole.
Based on the technical characteristics: through inserting the ring joint with airtight and connecting in the inside in airtight groove, can promote the leakproofness of first sealing flange and the sealed flange joint of second, still conveniently will cross the spacing both ends of fixing at an absorption section of thick bamboo of filter core.
As a preferred scheme of generator nitrogen gas replacement system preprocessing device, wherein: the airtight insert ring is in clamping fit with the airtight groove.
Based on the technical characteristics: insert ring and airtight groove structure through airtight, can promote the leakproofness of first sealing flange and second sealing flange connection, can also effectively avoid the nitrogen gas to leak the blowout from joint line between the two.
As a generator nitrogen gas replacement system preprocessing device's an optimal selection scheme, wherein: the filter element comprises a filter element shell and a filter screen, wherein the filter screen is filled in the filter element shell.
Based on the technical characteristics: the filter screen that the inside of crossing the filter core casing was filled can carry out filtration treatment to the particle impurity in carrying the nitrogen gas, when can promote the holistic purity degree of nitrogen gas, can also effectively reduce the particle impurity to the corruption injury that adsorbs filter screen and vacuum pump and cause.
The utility model discloses beneficial effect does: the airtight inserting ring is connected inside the airtight groove in a clamping mode, so that the connection tightness of the first sealing flange and the second sealing flange can be improved, and nitrogen gas can be effectively prevented from leaking and spraying out from a gap where the first sealing flange and the second sealing flange are connected; when the nitrogen cylinder carries out nitrogen gas output, through the filter core that sets up at adsorption device and adsorption device both ends, can carry out adsorption treatment to a small amount of air that contains in the output nitrogen gas in, can also carry out filtration treatment to the particulate impurity who contains in the nitrogen gas to this guarantees the holistic purity of transport nitrogen gas.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:
FIG. 1 is an overall configuration diagram of a pretreatment device of a generator nitrogen substitution system in example 1.
FIG. 2 is a schematic diagram showing a disassembled structure of a pretreatment module of the pretreatment device of the generator nitrogen substitution system in example 1.
FIG. 3 is a schematic view showing the structure of an adsorption cylinder of a pretreatment apparatus of a generator nitrogen substitution system in example 2.
In the drawings, the reference numbers indicate the following list of parts:
100. a nitrogen gas cylinder; 101. a first gas delivery pipe; 101a, a pressure reducing valve; 101b, a main exhaust valve; 101c, an exhaust port; 102. a second gas delivery pipe; 102a, an unloading valve; 102b, a needle valve I; 102c, a vacuum gauge; 103. a third gas delivery pipe; 103a and a needle valve II; 103b, a vacuum pump; 200. a pre-processing assembly; 201. a first sealing flange; 201a, an airtight groove; 201b, core slots; 202. an adsorption mechanism; 202a, an adsorption cylinder; 202a-1, a protective housing; 202a-2, protecting the inner container; 202a-3, an adsorption filter screen; 202b, a second sealing flange; 202b-1, fixing through holes; 202b-2, airtight insert ring; 203. a filter element; 203a, a filter element shell; 203b and a filter screen.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1, there is provided a pretreatment device for a generator nitrogen substitution system according to a first embodiment of the present invention, including,
a nitrogen gas cylinder 100 and a pre-treatment assembly 200;
the nitrogen gas cylinder 100 comprises a first gas pipe 101, a second gas pipe 102 and a third gas pipe 103, wherein the second gas pipe 102 penetrates through one side of the middle part of the first gas pipe 101, and the third gas pipe 103 penetrates through one end of the second gas pipe 102;
the pretreatment assembly 200 comprises first sealing flanges 201, adsorption mechanisms 202 and filter elements 203, wherein the adsorption mechanisms 202 are arranged between the two groups of first sealing flanges 201, the filter elements 203 are further arranged between the two ends of the adsorption mechanisms 202 and the first sealing flanges 201 respectively, and the airtight insert rings 202b-2 are connected in the airtight grooves 201a in a clamping mode, so that the connection tightness of the first sealing flanges 201 and the second sealing flanges 202b can be improved, and nitrogen gas can be effectively prevented from leaking and spraying out from gaps formed by the connection of the first sealing flanges 201 and the second sealing flanges 202 b; when the nitrogen cylinder carries out nitrogen gas output, through the filter core 203 that adsorption apparatus constructs 202 and adsorption apparatus constructs 202 both ends setting, can carry out adsorption treatment to a small amount of air that contains in the output nitrogen gas in, can also carry out filtration treatment to the particulate impurity who contains in the nitrogen gas to this guarantees the holistic purity of transport nitrogen gas.
First gas-supply pipe 101 includes pressure-reducing valve 101a, and one side that first gas-supply pipe 101 was kept away from to pressure-reducing valve 101a is provided with exhaust main valve 101b, and exhaust main valve 101b keeps away from the one end of first gas-supply pipe 101 and still is provided with gas vent 101c, and through pressure-reducing valve 101a and exhaust main valve 101b, nitrogen cylinder 100 conveniently carries out pressure release and on-off control to the nitrogen gas of output.
Example 2
Referring to fig. 1-2, a second embodiment of the present invention, which is different from the first embodiment, is: the second gas pipe 102 comprises an unloading valve 102a, a needle valve I102 b is installed in the middle of the second gas pipe 102, which is far away from the unloading valve 102a, a vacuum gauge 102c is further arranged on one side, which is far away from the needle valve I102 b, of the second gas pipe 102, and flow regulation and pressure value detection of conveyed nitrogen gas are facilitated through the structures of the unloading valve 102a, the needle valve I102 b and the vacuum gauge 102 c.
One end of the second gas transmission pipe 102, which is close to the vacuum meter 102c, and one end of the third gas transmission pipe 103, which is close to the vacuum meter 102c, are connected with a needle valve II 103a in a penetrating manner, a vacuum pump 103b is further installed at one end of the third gas transmission pipe 103, which is far away from the needle valve II 103a, and the inside of the generator requiring nitrogen replacement can be vacuumized through the structures of the needle valve II 103a and the vacuum pump 103 b.
First sealed flange 201 includes airtight groove 201a, and core groove 201b has been seted up at the middle part of airtight groove 201a, through inserting ring 202b-2 joint with airtight and connecting in the inside of airtight groove 201a, can promote the leakproofness that first sealed flange 201 and second sealed flange 202b are connected, can also effectively avoid nitrogen gas to leak the blowout from the gap that first sealed flange 201 and second sealed flange 202b are connected.
The adsorption mechanism 202 comprises an adsorption cylinder 202a, the two ends of the adsorption cylinder 202a are respectively provided with a second sealing flange 202b, the filter element 203 is arranged in the core groove 201b of the first sealing flange 201 and the second sealing flange 202b, the filter element 203 can be fixed at the two ends of the adsorption cylinder 202a in a limiting way, the filtering treatment of particle impurities contained in nitrogen is facilitated, meanwhile, the filtered impurities can be prevented from entering the adsorption cylinder 202a, and therefore the adsorption cylinder 202a is effectively prevented from being polluted by the impurities.
Example 3
Referring to fig. 2-3, in order to illustrate a third embodiment of the present invention, it is different from the first two embodiments: the adsorption cylinder 202a comprises a protective shell 202a-1, a protective inner container 202a-2 is arranged inside the protective shell 202a-1, an adsorption filter screen 202a-3 is filled inside the protective inner container 202a-2, the adsorption cylinder 202a can be protected in a double-layer mode through the structures of the protective shell 202a-1 and the protective inner container 202a-2, when the outer wall or one part of the inner wall of the adsorption cylinder 202a is damaged, nitrogen gas can be effectively prevented from leaking out of the damaged part of the adsorption cylinder 202a, the adsorption filter screen 202a-3 is matched with the structure of the adsorption filter screen 202a-3, the adsorption filter screen 202a-3 is composed of high-quality carbon molecular sieves, air can be selectively adsorbed under the action of a pressure swing adsorption principle and the molecular sieves filled with micro molecules, the purpose of oxygen-nitrogen separation can be achieved, and the integral purity of the nitrogen can be improved.
A plurality of groups of fixing through holes 202b-1 are formed in one side of the second sealing flange 202b, an airtight inserting ring 202b-2 is further arranged on one side, far away from the adsorption cylinder 202a, of the second sealing flange 202b, the airtight inserting ring 202b-2 is connected inside the airtight groove 201a in a clamping mode, the connection tightness of the first sealing flange 201 and the second sealing flange 202b can be improved, and the filter element 203 is conveniently limited and fixed at two ends of the adsorption cylinder 202 a.
The airtight insert ring 202b-2 is in clamping fit with the airtight groove 201a, the airtightness of the connection between the first sealing flange 201 and the second sealing flange 202b can be improved through the structure of the airtight insert ring 202b-2 and the airtight groove 201a, and the leakage and ejection of nitrogen from a connecting gap between the first sealing flange 201 and the second sealing flange can be effectively avoided.
The filter element 203 comprises a filter element shell 203a and a filter screen 203b, the filter screen 203b is filled in the filter element shell 203a, and the filter screen 203b filled in the filter element shell 203a can filter particulate impurities in the conveyed nitrogen, so that the overall purity of the nitrogen can be improved, and meanwhile, the corrosion damage of the particulate impurities to the adsorption filter screen 202a-3 and the vacuum pump 103b can be effectively reduced.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or substituted by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a generator nitrogen gas replacement system preprocessing device which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
a nitrogen gas cylinder (100) and a pretreatment assembly (200);
the nitrogen gas cylinder (100) comprises a first gas conveying pipe (101), a second gas conveying pipe (102) and a third gas conveying pipe (103), wherein the second gas conveying pipe (102) penetrates through one side of the middle of the first gas conveying pipe (101), and one end of the second gas conveying pipe (102) penetrates through the third gas conveying pipe (103);
the pretreatment assembly (200) comprises first sealing flanges (201), an adsorption mechanism (202) and a filter element (203), wherein the adsorption mechanism (202) is arranged between the first sealing flanges (201), and the filter element (203) is further arranged between the two ends of the adsorption mechanism (202) and the first sealing flanges (201).
2. The pretreatment device of a generator nitrogen substitution system according to claim 1, wherein: first gas-supply pipe (101) are including relief pressure valve (101 a), one side that is close to preliminary treatment subassembly (200) on first gas-supply pipe (101) is located in relief pressure valve (101 a), one side of keeping away from relief pressure valve (101 a) on first gas-supply pipe (101) is provided with exhaust main valve (101 b), the one end of keeping away from exhaust main valve (101 b) on first gas-supply pipe (101) still is provided with gas vent (101 c).
3. The pretreatment device of a generator nitrogen substitution system according to claim 1, wherein: the second gas transmission pipe (102) includes off-load valve (102 a), the mid-mounting that keeps away from off-load valve (102 a) on second gas transmission pipe (102) has needle valve one (102 b), one side of keeping away from needle valve one (102 b) on second gas transmission pipe (102) still is provided with vacuum gauge (102 c).
4. The pretreatment device of a generator nitrogen substitution system according to claim 1 or 3, wherein: one end of the second gas transmission pipe (102) close to the vacuum meter (102 c) and one end of the third gas transmission pipe (103) close to the vacuum meter (102 c) are connected with a needle valve II (103 a) in a penetrating manner, and a vacuum pump (103 b) is further installed at one end of the third gas transmission pipe (103) far away from the needle valve II (103 a).
5. The pretreatment device of a generator nitrogen substitution system according to claim 1, wherein: the first sealing flange (201) comprises an airtight groove (201 a), and a core groove (201 b) is formed in the middle of the airtight groove (201 a).
6. The pretreatment device of a generator nitrogen substitution system according to claim 5, wherein: the adsorption mechanism (202) comprises an adsorption cylinder (202 a), and second sealing flanges (202 b) are respectively installed at two ends of the adsorption cylinder (202 a).
7. The pretreatment device of a generator nitrogen substitution system according to claim 6, wherein: the adsorption cylinder (202 a) comprises a protective shell (202 a-1), a protective inner container (202 a-2) is installed inside the protective shell (202 a-1), and an adsorption filter screen (202 a-3) is filled inside the protective inner container (202 a-2).
8. The pretreatment device of a generator nitrogen substitution system according to claim 7, wherein: a plurality of groups of fixing through holes (202 b-1) are formed in one side of the second sealing flange (202 b), and an airtight insert ring (202 b-2) is further arranged on one side, far away from the adsorption cylinder (202 a), of the second sealing flange (202 b).
9. The pretreatment device of a generator nitrogen substitution system according to claim 8, wherein: the airtight insert ring (202 b-2) is in clamping fit with the airtight groove (201 a).
10. The pretreatment device of a generator nitrogen substitution system according to claim 1, wherein: the filter element (203) comprises a filter element shell (203 a) and a filter screen (203 b), and the filter screen (203 b) is filled in the filter element shell (203 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220423975.5U CN217662085U (en) | 2022-03-01 | 2022-03-01 | Pretreatment device of generator nitrogen replacement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220423975.5U CN217662085U (en) | 2022-03-01 | 2022-03-01 | Pretreatment device of generator nitrogen replacement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217662085U true CN217662085U (en) | 2022-10-28 |
Family
ID=83731959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220423975.5U Withdrawn - After Issue CN217662085U (en) | 2022-03-01 | 2022-03-01 | Pretreatment device of generator nitrogen replacement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217662085U (en) |
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2022
- 2022-03-01 CN CN202220423975.5U patent/CN217662085U/en not_active Withdrawn - After Issue
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