CN208518843U - The air supply system of compressor set dry gas seals and system for methanol synthesis with it - Google Patents
The air supply system of compressor set dry gas seals and system for methanol synthesis with it Download PDFInfo
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- CN208518843U CN208518843U CN201820997693.XU CN201820997693U CN208518843U CN 208518843 U CN208518843 U CN 208518843U CN 201820997693 U CN201820997693 U CN 201820997693U CN 208518843 U CN208518843 U CN 208518843U
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- pressure nitrogen
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 21
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 256
- 239000007789 gas Substances 0.000 claims abstract description 134
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 128
- 239000013589 supplement Substances 0.000 claims abstract description 9
- 238000011045 prefiltration Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 15
- 238000000926 separation method Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model provides a kind of air supply system of compressor set dry gas seals and the system for methanol synthesis with it.The air supply system includes the low-pressure nitrogen pipeline being connected to primary seal, and for conveying low-pressure nitrogen to primary seal, air supply system further includes the high pressure nitrogen pipeline being connected to primary seal, is used for primary seal conveying high-pressure nitrogen.By using high pressure nitrogen as the supplement gas source of dry gas seals, it avoids not being able to satisfy as substitutable gas resources caused by the pressure requirements of dry gas seals using low-pressure nitrogen in the prior art and seals safety problem, substantially reduce the risk of dry gas seals damage, because gas source is stablized, safeguard mean increases, and the contaminated chance of dry gas seals substantially reduces；The air supply system is applied widely, for there is the large-size chemical project process gas compressor set of air separation unit all to there are similar problems, therefore is generally applicable in, and have already passed through the practice test of certain device, operational excellence.
Description
Technical field
The utility model relates to compressor set field of safety protection, in particular to a kind of compressor set dry gas seals
Air supply system and system for methanol synthesis with it.
Background technique
Process gas compressor set generallys use dynamic sealing of the dry gas seals as compressor set both at home and abroad at present, and operation can
It leans on, does not pollute processing medium, it is free from environmental pollution, but it is worth valuableness, once damage maintenance cost is larger.
Generally there are three hermetic units for a set of dry gas seals: primary seal, secondary seal, isolation gas.
All stages of compressor operation, dry gas seals system need supply flow constant, clean, drying from beginning to end
Blanket gas to ensure sealing surface no liquid and foreign matter, and pushes rotary seal face and stationary seal face open, static and dynamic sealing in operation
Face gap is generally 3um or so.By the various controls on dry gas seals disk, clean, dry blanket gas is under pressure difference control
Persistently supply sealings at different levels, it is ensured that the unclean technique gas medium inside compressor will not enter dry gas seals and cause dry gas seals
Damage.
Generally there are two aspects in domestic similar compressor set primary seal gas source: one goes out from synthesic gas compressor
Mouthful, pressure is higher, and the present apparatus uses the gas source after compressor is driven normally in 8.0MPa or so；Secondly coming from low-pressure nitrogen
Pipe network (values for normal operation: 0.7MPa) is used as replacement gas, the protection gas when driving and parking stage and shutdown as dry gas seals, but
Must synthesis system pressure release to 0.7MPa or less when can use.
Blanket gas enters the bitubular Agglomerate Filter on dry gas seals pretreatment disk.It is set on the pretreatment disk of partial devices
Meter is equipped with empty gas-powered gas-booster, and compressed air is controlled through regulating valve, whenever blanket gas insufficient pressure is to maintain into pressure
When pressure difference necessary to contracting machine seal face, supercharger will start raising sealing atmospheric pressure automatically.Supercharger mentality of designing are as follows: level-one
The blanket gas abnormal conditions lower short time provides pressurization, is applicable to the operating conditions such as compressor purging, pressurization, starting and shutdown.Normally
When operation, for the blanket gas that synthetic compressor outlet returns as primary seal gas, supply gas pressure is sufficiently high, does not need supercharger fortune
Row.The every operation of supercharger 2500 hours are to need to safeguard vulnerable part, and the reliability of booster pump is generally poor, especially exists
The big northern area failure rate of the temperature difference is higher.
Current compressor dry gas seals design can not guarantee dry gas seals safety in following several stages: one is being pressed
The high pressure of contracting machine and synthesis system airtight stage, pressure are greater than low-pressure nitrogen bleed pressure, and low-pressure nitrogen can not use, unit
It does not run, process gas can not also use；Secondly the packing stage after normal production run shutdown, compressor internal pressure
Greater than low-pressure nitrogen bleed pressure.The two phases-times are longer, and pressure is higher, and low-pressure nitrogen is not able to satisfy as substitutable gas resources
The pressure requirements of dry gas seals, booster pump needs to run for a long time handy, but the design of booster pump can only guarantee in short-term
Between the safety that runs.The design requirement of compressor dry gas seals: unless the pressure release of compressor set total system and stopping compressor set, otherwise
Several stages, flow pressure-difference was not less than 10KPa to primary seal gas it has to be ensured that certain flow during production run or more,
Otherwise dry gas seals just have contaminated possibility.Therefore other means must be taken into consideration to guarantee the safety of dry gas seals.
All there are problems in the process gas compressor set of domestic many similar devices, in above-described two kinds of situations and
The stage after vehicle is jumped in compressor operation, dry gas seals just have contaminated risk, this is also domestic many set compressor sets
One of the reason of dry gas seals are damaged.
Utility model content
The main purpose of the utility model is to provide a kind of air supply system of compressor set dry gas seals and with its
System for methanol synthesis, to solve the problems, such as to be difficult to ensure primary seal safety in compressor set dry gas seals in the prior art.
To achieve the goals above, one aspect according to the present utility model provides a kind of compressor set dry gas seals
Air supply system, dry gas seals include primary seal, and air supply system includes the low-pressure nitrogen pipeline being connected to primary seal, are used for
Low-pressure nitrogen is conveyed to primary seal, air supply system further includes the high pressure nitrogen pipeline being connected to primary seal, is used for level-one
Seal conveying high-pressure nitrogen.
Further, air supply system further include: steam line, respectively with the entrance of dry gas seals, high pressure nitrogen pipeline
The outlet of outlet and low-pressure nitrogen pipeline；Prefilter is set on steam line.
Further, air supply system includes: the first valve group, is set on low-pressure nitrogen pipeline；Second valve group, is set to height
It presses on nitrogen pipeline.
Further, the first valve group includes: first manual valve, is set on low-pressure nitrogen pipeline；Second hand-operated valve, setting
In on low-pressure nitrogen pipeline；First drain valve is set on the low-pressure nitrogen pipeline between first manual valve and the second hand-operated valve.
Further, the first valve group further include: the first blind plate is set between first manual valve and the second hand-operated valve
Low-pressure nitrogen pipeline on；First check-valve is set on low-pressure nitrogen pipeline.
Further, the second valve group includes: third hand-operated valve, is set on high pressure nitrogen pipeline；4th hand-operated valve, setting
In on high pressure nitrogen pipeline；Second drain valve, the elevated pressure nitrogen tracheae being set between third hand-operated valve and the 4th hand-operated valve
On road.
Further, the second valve group further includes second check-valve and the 5th hand-operated valve, second check-valve and the 5th hand-operated valve
It is arranged at intervals on high pressure nitrogen pipeline, and second check-valve and the 5th hand-operated valve are located at the downstream of the 4th hand-operated valve.
Further, the second valve group further includes pneumatic operated valve, and pneumatic operated valve is set on high pressure nitrogen pipeline, and pneumatic operated valve is located at
The downstream of 4th hand-operated valve, air supply system further include automatic control unit, and automatic control unit is electrically connected with pneumatic operated valve, for controlling
Pneumatic operated valve processed opens or closes.
Further, high pressure nitrogen pipeline includes high pressure nitrogen main road and high pressure nitrogen branch, high pressure nitrogen branch and dry
Hermetic seal connection, high pressure nitrogen main road with system for methanol synthesis for being connected to.
Another aspect according to the present utility model provides a kind of system for methanol synthesis, and the methanol including being sequentially connected to closes
At tower, synthesic gas compressor and air supply system, air supply system is above-mentioned air supply system, and the elevated pressure nitrogen tracheae in air supply system
Road and methyl alcohol synthetic reactor, for providing supplement gas source for the methyl alcohol synthetic reactor of shutdown.
Using the technical solution of the utility model, a kind of air supply system of compressor set dry gas seals, the gas supply are provided
System includes the low-pressure nitrogen pipeline being connected to dry gas seals, and for conveying low-pressure nitrogen to primary seal, compressed air source unit is also wrapped
Include the high pressure nitrogen pipeline being connected to dry gas seals, for primary seal conveying high-pressure nitrogen, by using high pressure nitrogen as
The supplement gas source of dry gas seals avoids and is not able to satisfy dry gas seals as substitutable gas resources using low-pressure nitrogen in the prior art
Safety problem is sealed caused by pressure requirements, substantially reduces the risk of dry gas seals damage, because gas source is stablized, safeguard mean
Increase, the contaminated chance of dry gas seals substantially reduces；The air supply system is applied widely, for there is the enlargement of air separation unit
All there are similar problems in work project process gas compressor set, therefore be generally applicable in, and have already passed through the practice test of certain device, fortune
Row is good；Once also, compared with the prior art in supercharger damage, very likely result in two under the special operation conditions such as driving and parking
Dry gas seals damage is covered, direct losses cause system-wide production suspension induced losses at hundred million yuan or more indirectly at million yuan or more.
Detailed description of the invention
The Figure of description for constituting a part of the utility model is used to provide a further understanding of the present invention, this
The illustrative embodiments and their description of utility model do not constitute the improper limit to the utility model for explaining the utility model
It is fixed.In the accompanying drawings:
Fig. 1 shows a kind of air supply system structural schematic diagram of compressor set dry gas seals provided by the utility model.
Wherein, the above drawings include the following reference numerals:
10, low-pressure nitrogen pipeline；20, high pressure nitrogen pipeline；30, steam line；410, first manual valve；420, second-hand
Dynamic valve；430, the first drain valve；440, the first blind plate；450, first check-valve；510, third hand-operated valve；520, the 4th manually
Valve；530, the second drain valve；540, second check-valve；550, the 5th hand-operated valve；560, pneumatic operated valve；60, prefilter.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model a part, instead of all the embodiments.Based on the reality in the utility model
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts is all answered
When the range for belonging to the utility model protection.
It should be noted that the specification and claims of the utility model and term " first " in above-mentioned attached drawing,
" second " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way
The data used are interchangeable under appropriate circumstances, so as to the embodiments of the present invention described herein.In addition, term " packet
Include " and " having " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing series of steps
Or the process, method, system, product or equipment of unit those of are not necessarily limited to be clearly listed step or unit, but can wrap
Include other step or units being not clearly listed or intrinsic for these process, methods, product or equipment.
As background technique is introduced, it is difficult to ensure primary seal safety in compressor set dry gas seals in the prior art
The problem of.To solve the above-mentioned problems, present applicant proposes a kind of air supply systems of compressor set dry gas seals, as shown in Figure 1,
Dry gas seals include primary seal, the dry gas seals can also include secondary seal and isolation gas, above-mentioned air supply system include with
The low-pressure nitrogen pipeline 10 of primary seal connection, for conveying low-pressure nitrogen to primary seal, air supply system further includes and level-one
The high pressure nitrogen pipeline 20 of connection is sealed, is used for primary seal conveying high-pressure nitrogen.
Dry gas seals described herein belong to a system of compressor, including on pretreatment disk, distribution plate, body
Dry gas seals component and pipeline, distribution plate and dry gas seals component constitute primary seal, secondary seal and isolation gas three again
Part, air supply system described herein belong to a part on pretreatment disk.
By close using high pressure nitrogen as dry gas in the air supply system of the above-mentioned compressor group dry gas seals of the utility model
The supplement gas source of envelope is avoided and is wanted in the prior art using the pressure that low-pressure nitrogen is not able to satisfy dry gas seals as substitutable gas resources
Safety problem is sealed caused by asking, and substantially reduces the risk of dry gas seals damage, because gas source is stablized, safeguard mean increases,
The contaminated chance of dry gas seals substantially reduces；The air supply system is applied widely, for there is the large-size chemical item of air separation unit
All there are similar problems in mesh process gas compressor set, therefore be generally applicable in；Once also, compared with the prior art in supercharger damage
It is bad to may cause two sets of dry gas seals damage replacements, greatly save production run cost.
In the above-mentioned air supply system of the utility model, low-pressure nitrogen pipeline 10 for be passed through 0.6 into dry gas seals~
The low-pressure nitrogen of 0.9MPa, the pressure range of high pressure nitrogen pipeline 20 generally according to the design pressure of each device synthesis system and
Fixed, the supply gas pressure of high pressure nitrogen is 0~0.2MPa higher than synthetic compressor outlet gas pressure, it is preferable that air supply system
Further include steam line 30 and prefilter 60, steam line 30 respectively with the entrance of dry gas seals, high pressure nitrogen pipeline 20
The outlet of outlet and low-pressure nitrogen pipeline 10；Prefilter 60 is set on steam line 30.Above-mentioned prefilter 60
For removing the impurity in it before above-mentioned low-pressure nitrogen and high pressure nitrogen are passed through dry gas seals, to guarantee sealing effect.
In the above-mentioned air supply system of the utility model, air supply system may include the first valve group and the second valve group, and first
Valve group is set on low-pressure nitrogen pipeline 10；Second valve group is set on high pressure nitrogen pipeline 20.Above-mentioned first valve group is set to
On low-pressure nitrogen pipeline 10, so as to control conveying of the low-pressure nitrogen into dry gas seals；Above-mentioned second valve group is set to height
It presses on nitrogen pipeline 20, so as to control conveying of the high pressure nitrogen into dry gas seals, and then by controlling above-mentioned first valve
Group and the second valve group make low-pressure nitrogen and high pressure nitrogen select one and are delivered in dry gas seals.
In a preferred embodiment, above-mentioned first valve group includes first manual valve 410,420 and of the second hand-operated valve
First drain valve 430, above-mentioned first manual valve 410 and above-mentioned second hand-operated valve 420 are all set on low-pressure nitrogen pipeline 10；On
It states on the low-pressure nitrogen pipeline 10 that the first drain valve 430 is set between first manual valve 410 and the second hand-operated valve 420.Pass through
Control said sequence setting first manual valve 410, the first drain valve 430 and the second hand-operated valve 420, can make low-pressure nitrogen to
It conveys in compressor set dry gas seals, or discharges low-pressure nitrogen when high pressure nitrogen is conveyed into compressor set dry gas seals,
It avoids high pressure nitrogen from sealing in low-pressure nitrogen system, and has to nitrogen discharge pipe leading to outdoor.
In above-mentioned preferred embodiment, it is further preferable that above-mentioned first valve group further includes the first blind plate 440, this
One blind plate 440 is set on the low-pressure nitrogen pipeline 10 between first manual valve 410 and the second hand-operated valve 420, in necessity
When block the flowing of low-pressure nitrogen, be conducive to low-pressure nitrogen and discharged by the first drain valve 430；On it is further preferred that
Stating the first valve group further includes first check-valve 450, which is set on low-pressure nitrogen pipeline 10, for preventing
Low-pressure nitrogen is in the reflux into compressor set dry gas seals transmission process.
In a preferred embodiment, above-mentioned second valve group includes third hand-operated valve 510,520 and of the 4th hand-operated valve
Second drain valve 530, third hand-operated valve 510 and the 4th hand-operated valve 520 are all set on high pressure nitrogen pipeline 20；Second drain valve
530 are set on the high pressure nitrogen pipeline 20 between third hand-operated valve 510 and the 4th hand-operated valve 520.It is above-mentioned by controlling
Third hand-operated valve 510, the second drain valve 530 and the 4th hand-operated valve 520 of sequence setting, can make high pressure nitrogen to compressor set
It conveys in dry gas seals, or discharges high pressure nitrogen when low-pressure nitrogen is conveyed into compressor set dry gas seals, and by nitrogen
Delivery pipe leads to outdoor.
In above-mentioned preferred embodiment, it is further preferable that above-mentioned second valve group further includes second check-valve 540 and
Five hand-operated valves 550, second check-valve 540 and the 5th hand-operated valve 550 are arranged at intervals on high pressure nitrogen pipeline 20, and the second non-return
Valve 540 and the 5th hand-operated valve 550 are located at the downstream of the 4th hand-operated valve 520.Above-mentioned second check-valve 540 can prevent high pressure nitrogen
In the reflux into compressor set dry gas seals transmission process；The effect of above-mentioned 5th hand-operated valve 550 is: once pneumatic operated valve
560 break down, and close the 4th hand-operated valve 520 and the 5th hand-operated valve 550, pneumatic operated valve 560 can be cut out and be put into overhaul.
In above-mentioned preferred embodiment, it is further preferable that above-mentioned second valve group further includes pneumatic operated valve 560, pneumatic operated valve
560 are set on high pressure nitrogen pipeline 20, and pneumatic operated valve 560 is located at the downstream of the 4th hand-operated valve 520, and air supply system further includes certainly
Dynamic control unit (not shown), automatic control unit are electrically connected with pneumatic operated valve 560, for control the unlatching of pneumatic operated valve 560 or
It closes.Above-mentioned automatic control unit can access DCS, by using above-mentioned automatic control unit, can normally transport in compressor
Occur automatically turning on above-mentioned pneumatic operated valve 560 when primary seal gas exception during row, the synthesis of level-one dry gas seals gas can be set
Atmospheric pressure starts pneumatic operated valve when being lower than 30KPa, and primary seal autogenous cutting is made to change to high pressure nitrogen.
In a preferred embodiment, high pressure nitrogen pipeline 20 includes high pressure nitrogen main road and high pressure nitrogen branch,
High pressure nitrogen branch is connected to dry gas seals, and high pressure nitrogen main road with system for methanol synthesis for being connected to.Due in methanol-fueled CLC
In the design of device, in order to guarantee that airtight, displacement of synthesis system etc. requires, high pressure nitrogen has been usually introduced as synthesis system
Gas source is supplemented, therefore by using the pipeline of the above-mentioned conveying high-pressure nitrogen being connected to system for methanol synthesis as above-mentioned high pressure nitrogen
Pipeline 20, and high pressure nitrogen pipeline 20 is divided for high pressure nitrogen main road and high pressure nitrogen branch, make high pressure nitrogen main road and methanol
Synthesis system connection, high pressure nitrogen branch are connected to dry gas seals, can be by the above-mentioned supplement gas being introduced into system for methanol synthesis
The third supplement gas source of source as compressor level-one dry gas seals.
Another aspect according to the present utility model additionally provides a kind of system for methanol synthesis, including the methanol being sequentially connected to
Synthetic tower, synthesic gas compressor and above-mentioned air supply system, and high pressure nitrogen pipeline 20 and methanol-fueled CLC in the air supply system
Tower, for providing supplement gas source for the methyl alcohol synthetic reactor of shutdown.
By the way that the high pressure nitrogen of each device will be introduced as dry gas seals in the above-mentioned system for methanol synthesis of the utility model
Supplement gas source, avoid and the pressure requirements of dry gas seals be not able to satisfy as substitutable gas resources using low-pressure nitrogen in the prior art
Caused by seal safety problem, substantially reduce dry gas seals damage risk because gas source stablize, safeguard mean increase, do
The contaminated chance of hermetic seal substantially reduces；The air supply system is applied widely, for there is the large-size chemical project of air separation unit
All there are similar problems in process gas compressor set, therefore be generally applicable in；Once supercharger damage may in compared with the prior art
Two sets of dry gas seals damage replacements are caused, production run cost is greatlyd save.
It can be seen from the above description that the above embodiments of the utility model achieve the following technical effects:
1, the air supply system of compressor set dry gas seals provided by the utility model is applied widely, for free packing
The large-size chemical project process gas compressor set set generally is applicable in, and all there are similar problems；
2, above-mentioned air supply system substantially reduces the risk of dry gas seals damage, because gas source is stablized, safeguard mean increases, and does
The contaminated chance of hermetic seal substantially reduces；
3, the improvement cost of above-mentioned air supply system is lower, and convenient and reliable operation, and the level-one dry gas seals of partial devices need
It manually adjusts, and above-mentioned air supply system may be implemented to automatically control；
Once 4, compared with the prior art in supercharger damage may cause the damage replacement of two sets of dry gas seals, above-mentioned gas supply
System greatlys save production run cost.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of air supply system of compressor set dry gas seals, the dry gas seals include primary seal, which is characterized in that described
Air supply system includes the low-pressure nitrogen pipeline (10) being connected to the primary seal, for conveying low pressure nitrogen to the primary seal
Gas, the air supply system further include the high pressure nitrogen pipeline (20) being connected to the primary seal, are used for the primary seal
Conveying high-pressure nitrogen.
2. air supply system according to claim 1, which is characterized in that the air supply system further include:
Steam line (30), respectively with the entrance of the dry gas seals, the outlet of the high pressure nitrogen pipeline (20) and described
The outlet of low-pressure nitrogen pipeline (10)；
Prefilter (60) is set on the steam line (30).
3. air supply system according to claim 1, which is characterized in that the air supply system includes:
First valve group is set on the low-pressure nitrogen pipeline (10)；
Second valve group is set on the high pressure nitrogen pipeline (20).
4. air supply system according to claim 3, which is characterized in that first valve group includes:
First manual valve (410) is set on the low-pressure nitrogen pipeline (10)；
Second hand-operated valve (420) is set on the low-pressure nitrogen pipeline (10)；
First drain valve (430) is set to described between the first manual valve (410) and second hand-operated valve (420)
On low-pressure nitrogen pipeline (10).
5. air supply system according to claim 4, which is characterized in that first valve group further include:
First blind plate (440), the institute being set between the first manual valve (410) and second hand-operated valve (420)
It states on low-pressure nitrogen pipeline (10)；
First check-valve (450) is set on the low-pressure nitrogen pipeline (10).
6. air supply system according to claim 3, which is characterized in that second valve group includes:
Third hand-operated valve (510) is set on the high pressure nitrogen pipeline (20)；
4th hand-operated valve (520) is set on the high pressure nitrogen pipeline (20)；
Second drain valve (530) is set between the third hand-operated valve (510) and the 4th hand-operated valve (520)
On the high pressure nitrogen pipeline (20).
7. air supply system according to claim 6, which is characterized in that second valve group further includes second check-valve
(540) and the 5th hand-operated valve (550), the second check-valve (540) and the 5th hand-operated valve (550) are arranged at intervals at described
On high pressure nitrogen pipeline (20), and the second check-valve (540) and the 5th hand-operated valve (550) are located at the described 4th manually
The downstream of valve (520).
8. air supply system according to claim 6, which is characterized in that second valve group further includes pneumatic operated valve (560), institute
It states pneumatic operated valve (560) to be set on the high pressure nitrogen pipeline (20), and the pneumatic operated valve (560) is located at the 4th hand-operated valve
(520) downstream, the air supply system further include automatic control unit, the automatic control unit and the pneumatic operated valve (560)
Electrical connection, opens or closes for controlling the pneumatic operated valve (560).
9. air supply system according to claim 1, which is characterized in that the high pressure nitrogen pipeline (20) includes high pressure nitrogen
Main road and high pressure nitrogen branch, the high pressure nitrogen branch are connected to the dry gas seals, the high pressure nitrogen main road be used for
System for methanol synthesis connection.
10. a kind of system for methanol synthesis, special including the methyl alcohol synthetic reactor, synthesic gas compressor and air supply system being sequentially connected to
Sign is, the air supply system is air supply system described in any item of the claim 1 to 8, and the height in the air supply system
Nitrogen pipeline (20) and the methyl alcohol synthetic reactor are pressed, for providing supplement gas source for the methyl alcohol synthetic reactor of shutdown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820997693.XU CN208518843U (en) | 2018-06-26 | 2018-06-26 | The air supply system of compressor set dry gas seals and system for methanol synthesis with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820997693.XU CN208518843U (en) | 2018-06-26 | 2018-06-26 | The air supply system of compressor set dry gas seals and system for methanol synthesis with it |
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| Publication Number | Publication Date |
|---|---|
| CN208518843U true CN208518843U (en) | 2019-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820997693.XU Active CN208518843U (en) | 2018-06-26 | 2018-06-26 | The air supply system of compressor set dry gas seals and system for methanol synthesis with it |
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| CN (1) | CN208518843U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911811A (en) * | 2020-07-15 | 2020-11-10 | 安徽瑞赛克再生资源技术股份有限公司 | Synthetic compressor safety protection pipeline system and control method |
| CN112525441A (en) * | 2020-10-26 | 2021-03-19 | 中车唐山机车车辆有限公司 | Air charging pressure maintaining system and air charging pressure maintaining equipment for motor train unit |
-
2018
- 2018-06-26 CN CN201820997693.XU patent/CN208518843U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911811A (en) * | 2020-07-15 | 2020-11-10 | 安徽瑞赛克再生资源技术股份有限公司 | Synthetic compressor safety protection pipeline system and control method |
| CN112525441A (en) * | 2020-10-26 | 2021-03-19 | 中车唐山机车车辆有限公司 | Air charging pressure maintaining system and air charging pressure maintaining equipment for motor train unit |
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