CN106400571A - Vacuum control unit of vacuum roller of paper machine and paper machine - Google Patents
Vacuum control unit of vacuum roller of paper machine and paper machine Download PDFInfo
- Publication number
- CN106400571A CN106400571A CN201611047106.2A CN201611047106A CN106400571A CN 106400571 A CN106400571 A CN 106400571A CN 201611047106 A CN201611047106 A CN 201611047106A CN 106400571 A CN106400571 A CN 106400571A
- Authority
- CN
- China
- Prior art keywords
- paper machine
- water
- vacuum furnace
- control unit
- pipeline
- Prior art date
- 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.)
- Pending
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/10—Suction rolls, e.g. couch rolls
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
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- Paper (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention relates to a vacuum control unit of a vacuum roller of a paper machine. The vacuum control unit comprises a water jet air ejector, a water jet pump, an exhaust pipeline, a water tank, a pumping pipeline, water jet pipelines and a regulating valve, wherein the water tank, the water jet pump, the regulating valve and the water jet air ejector are connected in sequence through the water jet pipelines; the pumping pipeline is connected between the water jet air ejector and the vacuum roller of the paper machine, and the vacuum roller of the paper machine is in sealing rotary connection with the pumping pipeline; the water tank is exhausted in the air through the exhaust pipeline.
Description
Technical field
The present invention relates to paper making equipment technical field is it is adaptable to paper machine vacuum furnace vacuum control and paper machine.
Background technology
In papermaking operation, paper pulp is carried out after uniform treatment, due to there being substantial amounts of moisture in paper pulp, in the molding of paper product
Squeezing exclusion moisture is needed, vacuum furnace is the part of conventional dehydration on paper machine, it is to the molding of paper, dehydration and paper in journey
The speed of machine plays conclusive effect, also plays pivotal role to the physical property of paper, optical property, printing quality etc.,
The vacuum condition of vacuum furnace directly affects efficiency and the quality of papermaking.
Although vacuum system runs well in some factories, paper machine vacuum furnace often occurs, and vacuum is too sometimes
Greatly, also need to during operation exit, cause energy waste；Sometimes vacuum is too little, does not have enough effects, vacuum control equipment
The inconvenience of evacuation intensity adjustments.
The gas extracted out in paper machine vacuum furnace may be carried under one's arms moisture or other foreign bodies, enters the turbine wind of high-speed motion
Machine or water ring vacuum pump may cause fatal infringement to it.
Content of the invention
In order to make up above-mentioned vacuum control unit deficiency at work, the present invention proposes a kind of novel papermaking machine vacuum furnace
Vacuum control unit.Meet vacuum easy to adjust, equipment is simple, run safety etc. requires.
Its technical scheme is that a kind of paper machine vacuum furnace vacuum control unit, including water jet air ejector, water-jet pump, aerofluxuss
Pipeline, water tank, pump-line, jetting pipeline, control valve；Described water tank, described water-jet pump, described control valve, described penetrate
Water air ejector is sequentially connected by jetting pipeline；It is connected described exhaust tube between described water jet air ejector and paper machine vacuum furnace
Road, described paper machine vacuum furnace is rotatably connected in sealing with described pump-line；Described water tank passes through described discharge duct to sky
Aerofluxuss.
Further, there is standby water-jet pump, described standby water-jet pump is by described jetting pipeline and described jetting parallel connection of pumps；
There is standby control valve, it is in parallel with described control valve that described standby control valve passes through described jetting pipeline.
Further, there are 5 ball valves, before being separately mounted to described water-jet pump and described standby water-jet pump and described aerofluxuss
On pipeline, described moisturizing pipeline, described drainage pipeline.
Further, described jetting pipeline inlet installs filter screen.
Further, non-return valve is installed between described paper machine vacuum furnace and described water jet air ejector.
Further, water tank is closed tank.
Further, it is connected moisturizing pipeline between described water tank and paper manufacturing process circuit water system cold water pipes；Described water
It is connected drainage pipeline between case and paper manufacturing process circuit water system hot water pipeline.
Further, described paper machine vacuum furnace outlet has DJYL-PM type baroceptor, described baroceptor wire
Connect IST200 central series processor, described central processing unit wire connects described control valve, and described control valve is preferred
D943H type electric butterfly valve.
Further, a kind of paper machine it is characterised in that be provided with above-mentioned described in paper machine vacuum furnace vacuum control dress
Put.
Beneficial effects of the present invention：
1. this patent according to the vacuum of paper machine vacuum furnace, can change the aperture of control valve automatically, change jetting and take out
Gas device work water pressure, thus reach the purpose adjusting paper machine vacuum furnace vacuum.
2., compared with original technology, the gas extracted out from paper machine vacuum furnace not directly enters the slewings such as vacuum pump,
Avoid moisture or other foreign bodies that may carry under one's arms due to gas, enter the infringement in the vacuum pump of high-speed motion, it made；With
When avoid the oxide etch to vacuum pump vanes for the air.
Brief description
Fig. 1 is device pipeline connection diagram of the present invention.
Fig. 2 is water jet air ejector sectional view.
Fig. 3 circuit of the present invention connects block diagram.
In figure：1- water jet air ejector, 2- water-jet pump, the standby water-jet pump of 3-, 4- non-return valve, 5- discharge duct, 6- water tank, 7-
Pump-line, 8- jetting pipeline, 9- moisturizing pipeline, 10- drainage pipeline, 11- control valve, the standby control valve of 12-, 13- make
Paper machine vacuum furnace, 14- baroceptor, 15- central processing unit, 101- air inlet, 102- water inlet, 103- main jet,
104- mixing chamber, 105- diffuser pipe.
Specific embodiment
Below in conjunction with accompanying drawing, technical scheme is clearly and completely described with the enforcement it is clear that described
Example is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of not making creative work, broadly falls into the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation of instruction such as " level ", " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, merely to
Be easy to describe the present invention and simplify description, rather than instruction or the hint device of indication or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can
To be to be mechanically connected or electrical connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In conjunction with Fig. 1, one embodiment of the present invention.
A kind of paper machine vacuum furnace vacuum control unit, including water jet air ejector 1, water-jet pump 2, discharge duct 5, water tank 6,
Pump-line 7, jetting pipeline 8, control valve 11；Described water tank, described water-jet pump, described control valve, the pumping of described jetting
Device is sequentially connected by jetting pipeline；It is connected described pump-line, institute between described water jet air ejector and paper machine vacuum furnace 13
State paper machine vacuum furnace to be rotatably connected in sealing with described pump-line；Described water tank is by described discharge duct to idle discharge gas.
In conjunction with Fig. 1,2, the work water in described water tank, through described water-jet pump boosting after, squeeze into described water jet air ejector,
Pressure energy is become by kinetic energy by main jet 103.The high-velocity flow that main jet described in described water jet air ejector projects,
Produce fine vacuum to extract the gas in described paper machine vacuum furnace out in mixing chamber 104, after diffuser pipe 105 diffusion, return to institute
State jetting case.Bring the air of described water tank into, through the exclusion of described discharge duct.
This circulates as closed circulation system, and in work process, because acting, work coolant-temperature gage can constantly raise, described
The mixing chamber absolute pressure of water jet air ejector is low, if work is raised with coolant-temperature gage, water easily vaporizes, and the specific volume of steam is than the ratio of water
Hold much bigger, described mixing chamber pressure raises, exhaust capacity will be led to decline.So should be by moisturizing pipeline 9 to described water tank
Periodically or continuously supplement cooling water, hot water excluded by drainage pipeline 10, to reduce work coolant-temperature gage.
Under conditions of working water is temperature-resistant, with the rising of working water pressure, working water flow increases, described nozzle
Exit velocity increases, and suction capactity improves, and suction pressure declines, and described paper machine vacuum furnace vacuum improves.So it is worked
The paper machine vacuum furnace outlet pressure being detected according to baroceptor 14 in journey, by central processing unit 15 signal processing, gives
Described control valve sends order, changes the aperture of described control valve, changes described water jet air ejector work water pressure, thus changing
Become the vacuum of described paper machine vacuum furnace.
Between described paper machine vacuum furnace and described water jet air ejector, non-return valve is installed, prevents jetting device from breaking down
When, work water is inhaled into described paper machine vacuum furnace.Described jetting pipeline inlet installs filter screen, prevents solid sundries from entering
Described jetting pipeline.
The present embodiment also provides a kind of paper machine, this paper machine be provided with above-mentioned described in paper machine vacuum furnace vacuum control
Device.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of paper machine vacuum furnace vacuum control unit it is characterised in that include water jet air ejector, water-jet pump, discharge duct,
Water tank, pump-line, jetting pipeline, control valve；
Described water tank, described water-jet pump, described control valve, described water jet air ejector are sequentially connected by described jetting pipeline；
It is connected described pump-line, described paper machine vacuum furnace between the air inlet of described water jet air ejector and paper machine vacuum furnace
It is rotatably connected in sealing with described pump-line；
Described water tank is by described discharge duct to idle discharge gas.
2. paper machine vacuum furnace vacuum control unit is it is characterised in that there being standby water-jet pump, described according to claim 1
Standby water-jet pump is by described jetting pipeline and described jetting parallel connection of pumps.
3. according to claim 2 paper machine vacuum furnace vacuum control unit it is characterised in that there being standby control valve, institute
State standby control valve in parallel with described control valve by described jetting pipeline.
4. according to claim 3 paper machine vacuum furnace vacuum control unit it is characterised in that water jet air ejector be set
Standby, preferably TDA-N3 model.
5. paper machine vacuum furnace vacuum control unit, it is characterised in that there being 5 ball valves, is respectively mounted according to claim 4
Before described water-jet pump and described standby water-jet pump and on described discharge duct, described moisturizing pipeline, described drainage pipeline.
6. according to claim 5 paper machine vacuum furnace vacuum control unit it is characterised in that described jetting pipeline inlet
Filter screen is installed.
7. according to claim 6 paper machine vacuum furnace vacuum control unit it is characterised in that described paper machine vacuum furnace with
Non-return valve is installed between described water jet air ejector.
8. according to claim 7 paper machine vacuum furnace vacuum control unit it is characterised in that described water tank and paper technology
Described moisturizing pipeline is connected between circulation cold water pipes；Described water tank and paper manufacturing process circuit water system hot water pipeline it
Between connect described drainage pipeline.
9. according to claim 8 paper machine vacuum furnace vacuum control unit it is characterised in that described paper machine vacuum furnace goes out
Mouth has DJYL-PM type baroceptor, and described baroceptor wire connects IST200 central series processor, described centre
Reason device wire connects described control valve, the preferred D943H type electric butterfly valve of described control valve.
10. a kind of paper machine is it is characterised in that include as described paper machine vacuum furnace vacuum control arbitrary in claim 1-9
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611047106.2A CN106400571A (en) | 2016-11-24 | 2016-11-24 | Vacuum control unit of vacuum roller of paper machine and paper machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611047106.2A CN106400571A (en) | 2016-11-24 | 2016-11-24 | Vacuum control unit of vacuum roller of paper machine and paper machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106400571A true CN106400571A (en) | 2017-02-15 |
Family
ID=58082660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611047106.2A Pending CN106400571A (en) | 2016-11-24 | 2016-11-24 | Vacuum control unit of vacuum roller of paper machine and paper machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106400571A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5371954A (en) * | 1991-12-19 | 1994-12-13 | Sulzer-Escher Wyss Gmbh | Method and apparatus for the guiding of fibre webs |
| CN201705742U (en) * | 2010-06-18 | 2011-01-12 | 合肥天源热电有限公司 | Water jet air suction system |
| CN102269330A (en) * | 2011-04-28 | 2011-12-07 | 煤炭科学研究总院重庆研究院 | Pressure controller for coal bed gas gathering and transportation pipeline |
| CN203978533U (en) * | 2014-04-16 | 2014-12-03 | 北京佰能蓝天科技有限公司 | Overflow water recycling system in a kind of water jet air ejector jetting case |
| CN104196769A (en) * | 2014-08-18 | 2014-12-10 | 连云港久盛电力辅机有限公司 | Environment-friendly multi-channel water jet air ejector |
| CN106012643A (en) * | 2016-06-20 | 2016-10-12 | 许昌中亚工业智能装备股份有限公司 | Vacuum forming roller |
-
2016
- 2016-11-24 CN CN201611047106.2A patent/CN106400571A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5371954A (en) * | 1991-12-19 | 1994-12-13 | Sulzer-Escher Wyss Gmbh | Method and apparatus for the guiding of fibre webs |
| CN201705742U (en) * | 2010-06-18 | 2011-01-12 | 合肥天源热电有限公司 | Water jet air suction system |
| CN102269330A (en) * | 2011-04-28 | 2011-12-07 | 煤炭科学研究总院重庆研究院 | Pressure controller for coal bed gas gathering and transportation pipeline |
| CN203978533U (en) * | 2014-04-16 | 2014-12-03 | 北京佰能蓝天科技有限公司 | Overflow water recycling system in a kind of water jet air ejector jetting case |
| CN104196769A (en) * | 2014-08-18 | 2014-12-10 | 连云港久盛电力辅机有限公司 | Environment-friendly multi-channel water jet air ejector |
| CN106012643A (en) * | 2016-06-20 | 2016-10-12 | 许昌中亚工业智能装备股份有限公司 | Vacuum forming roller |
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Application publication date: 20170215 |