CN108980816A - Steam condensate (SC) negative pressure recovery system - Google Patents
Steam condensate (SC) negative pressure recovery system Download PDFInfo
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- CN108980816A CN108980816A CN201811037773.1A CN201811037773A CN108980816A CN 108980816 A CN108980816 A CN 108980816A CN 201811037773 A CN201811037773 A CN 201811037773A CN 108980816 A CN108980816 A CN 108980816A
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- Prior art keywords
- tank
- pressure balancing
- steam
- balancing tank
- water
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D11/00—Feed-water supply not provided for in other main groups
- F22D11/02—Arrangements of feed-water pumps
- F22D11/06—Arrangements of feed-water pumps for returning condensate to boiler
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- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention discloses a kind of steam condensate (SC) negative pressure recovery systems, including steam-water separation tank, pressure balancing tank；Spongy condensate, the water level balance pipe that drain valve is respectively equipped on the steam-water separation pot sidewall of spongy condensate lower part and is connected to pressure balancing tank cavity of resorption are equipped in steam-water separation tank；Steam-water separation tank epicoele is connected to by vapour siphunculus with pressure balancing tank inner cavity, pressure balancing tank epicoele passes through on-condensible gas discharge pipe and pneumatic diaphragm pump inlet communication, pressure balancing tank cavity of resorption is connected by pipeline with boiler room water collect tank by pipeline and pneumatic diaphragm pump inlet communication, pneumatic diaphragm pump discharge；It is provided with drain valve on pressure balancing tank lower sides, is provided with gas bleeder valve on on-condensible gas discharge pipe, water level bound sensor is provided in pressure balancing tank, the signal output end of water level bound sensor and the signal input part of single-chip microcontroller connect.The invention has the advantages that meeting energy-saving, the raising production efficiency purpose of corrugated paper board production line.
Description
Technical field
The present invention relates to corrugated paper board production line reclamation of condensate water, recycle system more particularly, to steam condensate (SC) negative pressure
System.
Background technique
Corrugated board production always is a highly energy-consuming trade, this is because corrugated board production belongs to hot production
Mode needs the mode operation of the heat-shaping under up to 150-170 DEG C of high temperature.Efficient today especially is being pursued, watt
Corrugated board production line speed is higher, and the heating temperature of corrugation equipment just needs synchronous raising.In order to energy saving, at present in industry
It is all working hard in index of the bonding with glue by every means always, to use steam temperature to reduce corrugated paper board production line
Degree, improves efficiency, and reduces production cost.However, being reduced using steam pressure, the return water collection work of condensed water but occurs
The undesirable problem of effect.Past, since boiler use cost is lower, condensed water is mostly nature discharge.Now, it fires
Coal burning boiler is all replaced by natural gas boiler, and use cost improves 4 times or more, for this purpose, most effective Compensation measures are exactly to condense
Watertight recycling, the use cost of combustion gas is reduced with this.
The condensing hot air furnace of corrugated paper board production line at present entirely uses the closed way of recycling of positive pressure, that is, condensed water
In collecting tank, condensed water is pressed back into boiler room using the steam pressure that equipment works.Positive pressure recycles usual pressure limit all
Between 0.2-0.3MPa, but at present gradually for the corrugated paper board production line using low pressure operation, this 2-3 kilograms outer
Pressure will increase biggish back pressure to the drain valve of heating equipment, causes to cause large effect to condensed water elimination effect, lead
It causes the condensed water elimination in heating equipment difficult, cannot in time, fully emit, seriously affect the heating of heating equipment
Effect.What corrugated board production was leaned on is exactly the high temperature of Corrugator roller and pressure roll boxboard and corrugated paper are quickly bonded in one
It rises, thus it is possible to the no stabilization for keeping high efficiency and bonding effect, the temperature of heating roller is stable and heating is averagely one crucial
Technical essential.Therefore, it should guarantee the normal work of corrugated board production, reach the energy consumption for reducing corrugated board production again,
It is the project of those skilled in the art's research.
Summary of the invention
It is an object of that present invention to provide a kind of steam condensate (SC) negative pressure recovery systems.
To achieve the above object, the present invention takes following technical proposals:
Steam condensate (SC) negative pressure recovery system of the present invention, including steam-water separation tank, pressure balancing tank；The steam-water separation
It is provided with the spongy condensate made of stainless steel wire in the middle part of tank inner cavity, the carbonated drink point positioned at the spongy condensate lower part
From be respectively arranged on pot sidewall the drain valve being connected with corrugated paper board production line condensing water conduit and with the pressure balance
The water level balance pipe that tank cavity of resorption is connected, the drain valve exit are provided with the bulbo cavernous made of stainless steel wire；Vapour
Water separation tank epicoele is connected by vapour siphunculus with pressure balancing tank inner cavity, and pressure balancing tank epicoele passes through on-condensible gas discharge pipe
It is connected with the pneumatic diaphragm pump inlet controlled by intelligent pressure controller, pressure balancing tank cavity of resorption passes through pipeline and described pneumatic
Diaphragm pump inlet is connected, and pneumatic diaphragm pump discharge is connected by pipeline with boiler room water collect tank；Pressure balancing tank lower side
It is provided on wall by monolithic processor controlled automatic safe drain valve, is provided on the on-condensible gas discharge pipe by the single-chip microcontroller
The automatic safe gas bleeder valve of control, is provided with water level bound sensor in pressure balancing tank, and the water level bound passes
The signal output end of sensor and the signal input part of single-chip microcontroller connect.
The invention has the advantages that corrugated paper board production line condensation water recovery system is designed as negative pressure way of recycling, to meet
Energy-saving, the raising quality requirements of corrugated paper board production line, final realize improve production efficiency purpose.
Detailed description of the invention
Fig. 1 is system structure diagram of the invention.
Specific embodiment
It elaborates with reference to the accompanying drawing to the embodiment of the present invention, the present embodiment before being with technical solution of the present invention
It puts and is implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to down
State embodiment.
As shown in Figure 1, steam condensate (SC) negative pressure recovery system of the present invention, including steam-water separation tank 3, pressure balance
Tank 4；It is provided with the spongy condensate 6 made of stainless steel wire in the middle part of 3 inner cavity of steam-water separation tank, is located at spongy condensate 6
Be respectively arranged on the steam-water separation pot sidewall of lower part the drain valve 2 being connected with corrugated paper board production line condensing water conduit and
The water level balance pipe 7 being connected with 4 cavity of resorption of pressure balancing tank, 2 water outlet of drain valve are provided with the ball made of stainless steel wire
Shape cavernous body 5；3 epicoele of steam-water separation tank is connected by vapour siphunculus 8 with 4 inner cavity of pressure balancing tank, and 4 epicoele of pressure balancing tank is logical
It crosses on-condensible gas discharge pipe 13 to be connected with 9 import of pneumatic diaphragm pump controlled by intelligent pressure controller 10, pressure balancing tank 4
Cavity of resorption is connected by pipeline with 9 import of pneumatic diaphragm pump, and the outlet of pneumatic diaphragm pump 9 passes through pipeline 14 and boiler room water collect tank phase
Connection；The automatic safe drain valve 12 controlled by single-chip microcontroller 15, on-condensible gas discharge are provided on 4 lower sides of pressure balancing tank
It is provided with the automatic safe gas bleeder valve 16 controlled by single-chip microcontroller 15 on pipe 13, is provided with water level or more in pressure balancing tank 4
Sensor 11 is limited, the signal output end of water level bound sensor 11 is connect with the signal input part of single-chip microcontroller 15.
Working principle of the present invention is summarized as follows:
The condensation by mixing water 1 that steam-heating apparatus in corrugated paper board production line generates has focused on steam point by drain valve 2
From in tank 3；The condensed water of liquid is concentrated in the lower part of steam knockout drum 3, and flash steam and incondensable gas are then raised above；?
When encountering positioned at the spongy condensate 6 on 3 top of steam knockout drum, coagulable flash steam is condensed again, flows to steam point
Lower part from tank 3 is assembled, and the air and carbon dioxide gas that cannot condense then are gathered in the top of steam knockout drum 3；Steam point
Condensed water 1 from 3 lower part of tank is balanced by water siphunculus 7 to be flowed in pressure balancing tank 4；The incondensable gas on top then passes through company
The vapour siphunculus 8 for being connected to 4 top of pressure balancing tank, which is discharged into pressure balancing tank 4, assembles；Condensed water 1 below pressure balancing tank 4
It is conveyed outward by pneumatic diaphragm pump 9, the incondensable gas for combining in 4 top of pressure balancing tank passes through 13 quilt of on-condensible gas discharge pipe
Pneumatic diaphragm pump 9 conveys outward together with condensed water 1；The condensation by mixing water pumped out by pneumatic diaphragm pump 9 passes through conveyance conduit
14 are transported in the water collect tank of boiler room.
In order to ensure the safe operation of negative pressure recovery system, when the water level bound sensor 11 in pressure balancing tank 4 is examined
Measure condensed water 1 peak level be more than drain valve 2 discharge outlet position when, single-chip microcontroller 15 can then start automatic drainage valve immediately
12 exhaust exceeded condensed water 1, to reach the environment for remaining negative pressure.
When water level bound sensor 11 detect condensate water level lower than setting lowest water level and negative pressure pressure value
When starting the working range of diaphragm pump 9, then illustrate that the incondensable gas accumulation in pressure balancing tank 4 is excessive, single-chip microcontroller 15 is then
It will start automatic release valve 16 to exhaust exhaust gas；Such a flow operations will remain that steam-water separation tank 3 and pressure are flat
The negative pressure state of setting is constantly in weighing apparatus tank 4.
In the water outlet of drain valve 2 bulbo cavernous 5 made of stainless steel wire are installed, drain valve 2 is limited with this
The quick-fried spray phenomenon that occurs under subnormal ambient of water outlet.
By above-mentioned control method, drain valve 2 will the operation under the back pressure environment of negative pressure, corrugated board is guaranteed with this
The condensed water elimination of steam-heating apparatus in production line is accomplished complete and thorough.
The formation of condensed water negative pressure recovery system subnormal ambient of the present invention is generated using pneumatic diaphragm pump 9, pneumatically
Diaphragm pump 9 also becomes the pressure in closed steam knockout drum 3 and pressure balancing tank 4 while being pumped condensed water 1
Negative pressure.Since pneumatic diaphragm pump 9 belongs to pneumatic mode, with certain cushion performance, will not because of pressure by
Step reduces and comes to harm like that electric water pump.Meanwhile the structure of pneumatic diaphragm pump 9 also allows biggish resistance shape occur
At therefore, which is the technology mode that most suitable elastic negative pressure generates.
Claims (1)
1. a kind of steam condensate (SC) negative pressure recovery system, including steam-water separation tank, pressure balancing tank；It is characterized by: the vapour
It is provided with the spongy condensate made of stainless steel wire in the middle part of water separation tank inner cavity, positioned at the spongy condensate lower part
Be respectively arranged on steam-water separation pot sidewall the drain valve being connected with corrugated paper board production line condensing water conduit and with the pressure
The water level balance pipe that dynamic balance tank cavity of resorption is connected, the drain valve exit are provided with the spherical sponge made of stainless steel wire
Body；Steam-water separation tank epicoele is connected by vapour siphunculus with pressure balancing tank inner cavity, and pressure balancing tank epicoele passes through on-condensible gas
Discharge pipe is connected with the pneumatic diaphragm pump inlet controlled by intelligent pressure controller, and pressure balancing tank cavity of resorption passes through pipeline and institute
It states pneumatic diaphragm pump inlet to be connected, pneumatic diaphragm pump discharge is connected by pipeline with boiler room water collect tank；Pressure balancing tank
It is provided on lower sides by monolithic processor controlled automatic safe drain valve, is provided on the on-condensible gas discharge pipe by described
Monolithic processor controlled automatic safe gas bleeder valve, is provided with water level bound sensor in pressure balancing tank, on the water level
The signal output end of lower limited sensor and the signal input part of single-chip microcontroller connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811037773.1A CN108980816A (en) | 2018-09-06 | 2018-09-06 | Steam condensate (SC) negative pressure recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811037773.1A CN108980816A (en) | 2018-09-06 | 2018-09-06 | Steam condensate (SC) negative pressure recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108980816A true CN108980816A (en) | 2018-12-11 |
Family
ID=64545843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811037773.1A Pending CN108980816A (en) | 2018-09-06 | 2018-09-06 | Steam condensate (SC) negative pressure recovery system |
Country Status (1)
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| CN (1) | CN108980816A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498438A (en) * | 2009-03-03 | 2009-08-05 | 石狮市亿祥染整有限公司 | Condensed water reclaiming system |
| CN202532444U (en) * | 2012-03-23 | 2012-11-14 | 上海蕲黄节能环保设备有限公司 | Condensate water recycling device for boiler |
| CN202868666U (en) * | 2012-08-30 | 2013-04-10 | 昆山乐为能源环保设备有限公司 | Steam condensate recycling device |
| CN103672854A (en) * | 2012-09-14 | 2014-03-26 | 昆山禾晟能源科技工业有限公司 | Negative-pressure type steam condensate water recovery device |
| CN203718745U (en) * | 2014-01-07 | 2014-07-16 | 天津天鹿锅炉技术服务有限公司 | Condensed water recovery system |
| CN207006117U (en) * | 2017-06-20 | 2018-02-13 | 广西三赢节能投资有限公司 | A kind of boiler condensed water recovering device |
| US20180073725A1 (en) * | 2016-09-12 | 2018-03-15 | Harjinder Singh | Thermal Boiler Feed Pump |
| CN209116315U (en) * | 2018-09-06 | 2019-07-16 | 河南省新斗彩印刷有限公司 | Steam condensate (SC) negative pressure recovery system |
-
2018
- 2018-09-06 CN CN201811037773.1A patent/CN108980816A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101498438A (en) * | 2009-03-03 | 2009-08-05 | 石狮市亿祥染整有限公司 | Condensed water reclaiming system |
| CN202532444U (en) * | 2012-03-23 | 2012-11-14 | 上海蕲黄节能环保设备有限公司 | Condensate water recycling device for boiler |
| CN202868666U (en) * | 2012-08-30 | 2013-04-10 | 昆山乐为能源环保设备有限公司 | Steam condensate recycling device |
| CN103672854A (en) * | 2012-09-14 | 2014-03-26 | 昆山禾晟能源科技工业有限公司 | Negative-pressure type steam condensate water recovery device |
| CN203718745U (en) * | 2014-01-07 | 2014-07-16 | 天津天鹿锅炉技术服务有限公司 | Condensed water recovery system |
| US20180073725A1 (en) * | 2016-09-12 | 2018-03-15 | Harjinder Singh | Thermal Boiler Feed Pump |
| CN207006117U (en) * | 2017-06-20 | 2018-02-13 | 广西三赢节能投资有限公司 | A kind of boiler condensed water recovering device |
| CN209116315U (en) * | 2018-09-06 | 2019-07-16 | 河南省新斗彩印刷有限公司 | Steam condensate (SC) negative pressure recovery system |
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| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20210122 |