CN207546023U - A kind of filter regeneration of high-pressure polyethylene device - Google Patents
A kind of filter regeneration of high-pressure polyethylene device Download PDFInfo
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- CN207546023U CN207546023U CN201721293289.6U CN201721293289U CN207546023U CN 207546023 U CN207546023 U CN 207546023U CN 201721293289 U CN201721293289 U CN 201721293289U CN 207546023 U CN207546023 U CN 207546023U
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- low pressure
- valve
- air filter
- recycle air
- filter
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Abstract
A kind of filter regeneration of high-pressure polyethylene device, belongs to High-pressure Polyethylene Production field.It is characterized in that：Low pressure recycle air filter（1）Be internally provided with strainer（4）, top is provided with low pressure steam line（5）, low pressure steam line（5）End be passed through strainer（4）Inside, bypass line is connected between intake line and output pipe, by-passing valve is provided on bypass line（9）, low pressure recycle air filter（1）Bottom end be provided with draining valve（10）With for being passed through the venthole of substitution gas（11）, draining valve（10）Lower section be provided with sump tank（12）.The utility model is heated the substances such as the oligomer of strainer and wax oil by adding low pressure steam line, purging is clean, the regeneration of filter can either be realized under the premise of non-stop-machine, and can reduce the waste of raw material.
Description
Technical field
A kind of filter regeneration of high-pressure polyethylene device, belongs to High-pressure Polyethylene Production field.
Background technology
The filter regeneration of high-pressure polyethylene device is provided with low pressure recycle air filter.High-pressure polyethylene device
For filter regeneration when running well, low pressure recycle gas through low pressure recycle air filter after surge tank by entering compression
Machine.It is mingled with oligomer and oily wax in low pressure recycle gas, liquid hammer can be caused to the air valve of compressor, damages equipment.Therefore, it is necessary to
The oligomer being mingled in low pressure recycle gas and oily wax are separated, usually filtered by being set inside low pressure recycle air filter
Net is realized.
Low pressure recycle air filter long time running, strainer easily by oligomer and oily paraffin blockage plug, cause low pressure recycle gas
Pressure difference is big before and after filter.At this moment the strainer of filter is replaced with regard to needing to stop.The prior art at least exists asks as follows
Topic：When can not continuous production, cause the reduction of device yield；Second is that the waste of raw material is caused, the unordered discharge of feed ethylene
Also environment can be adversely affected.
Utility model content
The technical problems to be solved in the utility model is：A kind of realization is overcome the deficiencies of the prior art and provide not parking
Under the premise of realize the regeneration of filter, avoid the filter regeneration of the high-pressure polyethylene device of the waste of feed ethylene.
Technical solution is used by the utility model solves its technical problem：The filter of the high-pressure polyethylene device is again
Raw system, it is characterised in that：Including low pressure recycle air filter, the input terminal of low pressure recycle air filter is connected by intake line
Surge tank is connected to, the output terminal of low pressure recycle air filter is connected with compressor, low pressure recycle air filter by output pipe
Interior middle and upper part is provided with strainer, and low pressure steam line, low pressure steam pipe road are provided with above low pressure recycle air filter
Low-pressure steam valve is provided with, the end of low pressure steam line is passed through the inside of strainer；It is connected between intake line and output pipe
Bypass line, the input terminal of low pressure recycle air filter are provided with preceding shut-off valve, and the output terminal of low pressure recycle air filter is equipped with
Shut-off valve afterwards is provided with by-passing valve on bypass line, and the bottom end of low pressure recycle air filter is provided with draining valve and for being passed through
The venthole of substitution gas is provided with sump tank below draining valve.
The utility model provides a kind of filter regeneration of high-pressure polyethylene device, can either be before non-stop-machine
The regeneration for realizing filter is put, and the waste of raw material can be reduced.
Preferably, the bypass line connects the low pressure recycle air filter of multiple parallel connections.High-pressure polyethylene device
Filter regeneration be additionally provided with the low pressure recycle air filter it is in parallel and therewith structure it is identical another is low
Pressure cycle air filter, another low pressure recycle air filter are also equipped with low pressure steam line, low-pressure steam valve, preceding cut-off
Valve, rear shut-off valve, venthole, draining valve and sump tank.In this way when a low pressure recycle air filter cuts out cleaning, this is another
A low pressure recycle air filter can also continue to filtration, it is ensured that entire filter process is uninterrupted, reduces the wave of raw material
Take.
Preferably, microcontroller is further included, is all provided on the intake line and output pipe of the low pressure recycle air filter
Pressure sensor is equipped with, the signal output end of pressure sensor is connected to the signal input part of microcontroller；The control terminal of microcontroller
It is drivingly connected preceding shut-off valve, rear shut-off valve.
Preferably, microcontroller is further included, is all provided on the intake line and output pipe of the low pressure recycle air filter
Pressure sensor is equipped with, the signal output end of pressure sensor is connected to the signal input part of microcontroller；The control terminal of microcontroller
It is drivingly connected preceding shut-off valve, rear shut-off valve, low-pressure steam valve and by-passing valve.
Pressure sensor can be with the front and rear pressure difference data of automatic collection low pressure recycle air filter, and by the number of acquisition in this way
According to being transmitted to microcontroller, so as to the switch of the preceding shut-off valve of drive control, rear shut-off valve, low-pressure steam valve and by-passing valve, preferably in fact
Now automatically control.
Preferably, the both ends of the bypass line are both provided with by-passing valve.
Preferably, the end of the low pressure steam line is provided with blow head, and blow head is including hollow body and therefrom
The multiple air outlet pipes uniformly stretched out around empty ontology are both provided with venthole on the end of air outlet pipe and side wall.Cause in this way
Outlet respectively to having, can improve reproduction speed.
Preferably, the hollow body is spherical shape.
Preferably, the strainer is the stainless steel filtering net of 40 mesh.
Compared with prior art, it is beneficial possessed by the filter regeneration of the high-pressure polyethylene device of the utility model
Effect is：The filter regeneration of the high-pressure polyethylene device of the utility model, when in use, when low pressure recycle air filter
Front and rear pressure difference be more than specified value when, open low pressure recycle air filter by-passing valve, close low pressure recycle air filter before
Shut-off valve and rear shut-off valve, low pressure recycle air filter is cut out.The low-pressure steam valve of low pressure recycle air filter is opened, to low
The interior of pressure cycle air filter is passed through low-pressure steam, and the substances such as the oligomer adhered on strainer and oily wax can be steamed in low pressure
Melt at the higher temperature of vapour, and the draining valve through low pressure recycle air filter bottom end is discharged into sump tank.After cleaning out, close
Low-pressure steam valve is closed, and substitution gas is passed through to system into line replacement, after substitutability analysis qualification, is gradually opened low pressure recycle gas mistake
The preceding shut-off valve and rear shut-off valve of filter close the by-passing valve of low pressure recycle air filter.The utility model is by adding low pressure
Steam pipework heats the substances such as the oligomer of strainer and wax oil, purging is clean, can either be realized under the premise of non-stop-machine
The regeneration of filter, and the waste of raw material can be reduced.
Description of the drawings
Fig. 1 is a kind of structure diagram of the filter regeneration of high-pressure polyethylene device of the utility model；
Fig. 2 is a kind of signal of the blow head of the filter regeneration of mesohigh polyethylene device of the utility model
Figure.
Wherein, 1, low pressure recycle air filter 2, surge tank 3, compressor 4, strainer 5, low pressure steam line 6, low
It presses steam valve 7, preceding shut-off valve 8, rear shut-off valve 9, by-passing valve 10, draining valve 11, venthole 12, sump tank 13, blow
First 14, hollow body 15, air outlet pipe.
Specific embodiment
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.Fig. 1,2 be the utility model most preferred embodiment, 1,2 pair of this reality below in conjunction with the accompanying drawings
It is described further with novel.
The utility model provides a kind of filter regeneration of high-pressure polyethylene device, as shown in Figure 1, being followed including low pressure
Ring air filter 1, the input terminal of low pressure recycle air filter 1 are connected with surge tank 2, the output terminal of low pressure recycle air filter 1
Compressor 3 is connected with, low pressure recycle air filter 1 is internally provided with strainer 4, the external top of low pressure recycle air filter 1
Low pressure steam line 5 is provided with, low-pressure steam valve 6 is provided on low pressure steam line 5, the end of low pressure steam line 5 is passed through
The inside of strainer 4, is provided with bypass line on the intake line and output pipe of low pressure recycle air filter 1, bypass line and
Shut-off valve 7 before being provided on pipeline between the entrance of low pressure recycle air filter 1, bypass line and low pressure recycle air filter
Rear shut-off valve 8 is provided on pipeline between 1 outlet, by-passing valve 9, low pressure recycle air filter 1 are provided on bypass line
Bottom end be provided with draining valve 10 and the venthole 11 for being passed through substitution gas, the lower section of draining valve 10 is provided with sump tank
12。
The course of work：When in use, when the front and rear pressure difference of low pressure recycle air filter 1 is more than specified value, low pressure is opened
The by-passing valve 9 of air filter 1 is recycled, the preceding shut-off valve 7 of low pressure recycle air filter 1 and rear shut-off valve 8 are closed, by low pressure recycle
Air filter 1 is cut out.The low-pressure steam valve 6 of low pressure recycle air filter 1 is opened, in the strainer 4 of low pressure recycle air filter 1
Portion is passed through low-pressure steam, and the substances such as the oligomer adhered on strainer 4 and oily wax can melt at the higher temperature of low-pressure steam, and
Draining valve 10 through 1 bottom end of low pressure recycle air filter is discharged into sump tank 12.After cleaning out, low-pressure steam valve 6 is closed, and
Substitution gas is passed through to system into line replacement, after substitutability analysis qualification, is gradually opened the preceding shut-off valve of low pressure recycle air filter 1
7 and rear shut-off valve 8, close the by-passing valve 9 of low pressure recycle air filter 1.
Be additionally provided with low pressure recycle air filter 1 it is in parallel and the identical other at least one low pressure of structure is followed therewith
Ring air filter（It is not shown）, which is also equipped with above-mentioned low pressure steam line 5, low-pressure steam
Valve 6, preceding shut-off valve 7, rear shut-off valve 8, venthole 11, draining valve 10 and sump tank 12.
Microcontroller is further included, wherein：
Pressure sensor, pressure sensor are both provided on the intake line and output pipe of low pressure recycle air filter 1
Signal output end be connected to the signal input part of microcontroller；
The control terminal of microcontroller is drivingly connected preceding shut-off valve 7, rear shut-off valve 8, low-pressure steam valve 6 and by-passing valve 9.
The end of low pressure steam line 5 is provided with blow head 13, as shown in Fig. 2, blow head 13 includes spherical hollow
Body 14 and the multiple air outlet pipes 15 uniformly stretched out around hollow body 14 are both provided on the end of air outlet pipe 15 and side wall
Venthole（It is not shown）.
Application effect：
The utility model can make low pressure recycle air filter service life extend to 1 year by original 3 months, and reduction stops
Train number number 3 times, replace needs 2 hours every time, reduces about 3 tons of ethylene of discharge altogether, and ethylene per ton presses 5500 yuan, can save ethylene expense
With 16500 yuan.The utility model, which does not need to uncap, replaces strainer, realizes strainer regeneration, and eliminate shadow of the oxygen to vinyl polymerization
It rings.In the utility model, consumption low-pressure steam is about 650Kg, is regenerated 3 times by annual strainer, consumes about 2 tons of low-pressure steam altogether,
Spend 500 yuan.Whole year can save 16000 yuan of expense.Environment caused by the utility model greatly reduces fuel gas discharge is dirty
Dye.The utility model is applicable to domestic and international nearly all high-pressure polyethylene device, and the scope of application is broad.And the utility model
Very little is influenced on the consecutive production of device, has the characteristics that at low cost, flow is simple, easy to operate, operability is strong.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation.But it is every without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real
Any simple modification, equivalent variations and the remodeling that confrontation above example is made still fall within the guarantor of technical solutions of the utility model
Protect range.
Claims (8)
1. a kind of filter regeneration of high-pressure polyethylene device, it is characterised in that：Including low pressure recycle air filter（1）,
Low pressure recycle air filter（1）Input terminal surge tank is connected with by intake line（2）, low pressure recycle air filter（1）'s
Output terminal is connected with compressor by output pipe（3）, low pressure recycle air filter（1）Interior middle and upper part is provided with strainer（4）,
Low pressure recycle air filter（1）Top be provided with low pressure steam line（5）, low pressure steam line（5）On be provided with low pressure steaming
Steam valve（6）, low pressure steam line（5）End be passed through strainer（4）Inside, bypass is connected between intake line and output pipe
Pipeline, low pressure recycle air filter（1）Input terminal be provided with preceding shut-off valve（7）, low pressure recycle air filter（1）Output terminal
Equipped with rear shut-off valve（8）, by-passing valve is provided on bypass line（9）, low pressure recycle air filter（1）Bottom end be provided with oil extraction
Valve（10）With for being passed through the venthole of substitution gas（11）, draining valve（10）Lower section be provided with sump tank（12）.
2. a kind of filter regeneration of high-pressure polyethylene device according to claim 1, it is characterised in that：It is described
Bypass line connect the low pressure recycle air filters of multiple parallel connections（1）.
3. a kind of filter regeneration of high-pressure polyethylene device according to claim 1, it is characterised in that：It further includes
Microcontroller, the low pressure recycle air filter（1）Intake line and output pipe on be both provided with pressure sensor, pressure
The signal output end of sensor is connected to the signal input part of microcontroller；Shut-off valve before the control terminal of microcontroller is drivingly connected（7）、
Shut-off valve afterwards（8）.
4. a kind of filter regeneration of high-pressure polyethylene device according to claim 1, it is characterised in that：Also wrap
Include microcontroller, the low pressure recycle air filter（1）Intake line and output pipe on be both provided with pressure sensor, press
The signal output end of force snesor is connected to the signal input part of microcontroller；Shut-off valve before the control terminal of microcontroller is drivingly connected
（7）, rear shut-off valve（8）, low-pressure steam valve（6）And by-passing valve（9）.
5. a kind of filter regeneration of high-pressure polyethylene device according to claim 1, it is characterised in that：Described
The both ends of bypass line are both provided with by-passing valve（9）.
6. a kind of filter regeneration of high-pressure polyethylene device according to claim 1, it is characterised in that：Described
Low pressure steam line（5）End be provided with blow head（13）, blow head（13）Including hollow body（14）With from hollow body
（14）Around multiple air outlet pipes for uniformly stretching out（15）, air outlet pipe（15）End and side wall on be both provided with venthole.
7. a kind of filter regeneration of high-pressure polyethylene device according to claim 6, it is characterised in that：Described
Hollow body（14）For spherical shape.
8. a kind of filter regeneration of high-pressure polyethylene device according to claim 1, it is characterised in that：The filter
Net（4）Stainless steel filtering net for 40 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721293289.6U CN207546023U (en) | 2017-10-09 | 2017-10-09 | A kind of filter regeneration of high-pressure polyethylene device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721293289.6U CN207546023U (en) | 2017-10-09 | 2017-10-09 | A kind of filter regeneration of high-pressure polyethylene device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207546023U true CN207546023U (en) | 2018-06-29 |
Family
ID=62675555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721293289.6U Active CN207546023U (en) | 2017-10-09 | 2017-10-09 | A kind of filter regeneration of high-pressure polyethylene device |
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| Country | Link |
|---|---|
| CN (1) | CN207546023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966456A (en) * | 2018-09-30 | 2020-04-07 | 上海梅山钢铁股份有限公司 | Air filtering differential pressure overrun protector for blast furnace blower |
| CN111495046A (en) * | 2020-04-24 | 2020-08-07 | 安徽晋煤中能化工股份有限公司 | Online cleaning device of low pressure fuel gas filter |
-
2017
- 2017-10-09 CN CN201721293289.6U patent/CN207546023U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966456A (en) * | 2018-09-30 | 2020-04-07 | 上海梅山钢铁股份有限公司 | Air filtering differential pressure overrun protector for blast furnace blower |
| CN110966456B (en) * | 2018-09-30 | 2022-04-15 | 上海梅山钢铁股份有限公司 | Air filtering differential pressure overrun protector for blast furnace blower |
| CN111495046A (en) * | 2020-04-24 | 2020-08-07 | 安徽晋煤中能化工股份有限公司 | Online cleaning device of low pressure fuel gas filter |
| CN111495046B (en) * | 2020-04-24 | 2021-10-19 | 安徽晋煤中能化工股份有限公司 | Online cleaning device of low pressure fuel gas filter |
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