CN206666921U - A kind of paper machine dryer recycling system for steam condensate water - Google Patents
A kind of paper machine dryer recycling system for steam condensate water Download PDFInfo
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- CN206666921U CN206666921U CN201720341912.4U CN201720341912U CN206666921U CN 206666921 U CN206666921 U CN 206666921U CN 201720341912 U CN201720341912 U CN 201720341912U CN 206666921 U CN206666921 U CN 206666921U
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Abstract
The utility model discloses a kind of paper machine dryer recycling system for steam condensate water, belong to papermaking equipment technical field.It includes drying cylinder, heat exchanger, bosh and warm water tank；The drying cylinder has condensation-water drain, and the heat exchanger has Heating medium, heating agent outlet, refrigerant import and refrigerant exit；The condensation-water drain of the drying cylinder connects the Heating medium of heat exchanger, the heating agent outlet connection bosh of heat exchanger, the refrigerant import connection workshop clear water source of heat exchanger, the refrigerant exit connection warm water tank of heat exchanger by pipeline.Condensed water caused by drying cylinder is used for the cooling water of the equipment such as hydraulic station, lubrication station in the production of paper machine by the utility model, avoids the fouling of heat exchange, ensures systems stay Effec-tive Function.
Description
Technical field
The utility model belongs to papermaking equipment technical field, more specifically to a kind of paper machine dryer steam condensate (SC)
Reutilization system.
Background technology
The drying section of all kinds of paper machines domestic at present is generally using single hop, the conventional thermodynamic system of two sections or three sections steaming modes
System, causes waste hot steam exhaust emission environment, and drying cylinder accumulates steam condensate (SC), and the ton paper steam consumption is high, influence paper machine improve speed and
Product quality is improved, is current paper industry generally existing and urgent problem.
The operation principle of the drying section of paper machine is：After press section, residual moisture must steam in Dryer Section of Paper Machine in paper industry
Hair removing.Evaporation process needs a large amount of heat energy, generally supplies in vapour form.Drying section is usually the maximum that consumed energy in paper.Paper
The main drying mode of machine drying section is contact drying, is a more complicated heat and mass transfer process.Drying process can divide
Into three phases such as heating drying, constant rate of drying, uniform speed change falling-rate periods of drying.The moisture change of heating drying stage is little,
Because the heat energy supply in this stage is more than thermal energy consumption, the temperature and rate of drying of l Water Paper increase quickly.Constant rate drying period accounts for paper
The 50%~60% of machine whole drying time, mainly removes the free water in l Water Paper.In this stage, the vapour pressure in page
Power is significantly larger than the vapor partial pressure of surrounding air, the increase of mass transfer power, thermal energy consumption increase, will appear from the heat dissipation of heat supply and heat dissipation
Poised state.Falling rate drying period is mainly to evaporate capillary water in page and with reference to water, in order to overcome surface tension
Constraint and be used to improving the heat that molecular kinetic energy is consumed and can increase, the poised state between heat supply and heat dissipation is broken, and is steamed
Send out rate reduction.In this stage, it is uniform that the rate of drying of its early stage, which declines, and decline phenomenon occurs in page temperature；
The speed change reduction of speed phenomenon that the rate of drying in later stage slows down because occurring downward trend evaporating the reduction of heat consumption, page can stably go out
Now go up, be advantageous to the evaporation and diffusion of residual moisture in page.
Process mechanism is dried according to above-mentioned paper web, for different cultivars, the l Water Paper of different basis weights, in different drying stages
The steam of different grades should be supplied.Therefore, common practices is that the drying cylinder of drying section is divided by the height of required steam pressure
Section (being such as divided into three low pressure, medium and high pressure drying cylinder sections), form the dryer temperature curve for meeting drying process requirement.Due to
During drying, produce a large amount of condensed waters in drying cylinder, condensed water elimination easily causes the decline of drying cylinder ability not in time, the rise of steam energy consumption and
Waste of steam during manual drain.
And simultaneously, in the production process of paper machine, the equipment such as hydraulic station, lubrication station needs to use substantial amounts of condensed water again,
Its power consumption is very high, and prior art is to be passed through heat exchanger using lake water or river to carry out heat exchange, but because water quality is more muddy,
Containing substantial amounts of calcium iron ion, water quality is poor, and internal heat exchanger plate fouling, serious shadow can be caused during heat exchange
Heat exchange effect is rung, increases energy consumption, constrains the normal use of equipment.In the case, if it is possible to produce above-mentioned drying cylinder
Condensed water be used for the cooling of hydraulic station, lubrication station etc., this will bring double advantage.
There is the scheme of related paper machine dryer condensation water process in the prior art, as Chinese Patent Application No. is：
201320646256.0 publication date is：The patent document on April 23rd, 2014, disclose a kind of paper machine dryer condensation water process
System, one end of the siphon piping of the system are connected by jet chimney with drying cylinder, siphon piping it is another be terminated with it is hydrophobic
Valve, drain valve are connected with cooling collecting tank, cool down and cooling water pipeline is connected with collecting tank, and water pump is connected with cooling collecting tank
Connect.The condensed water that the program produces higher temperatures by cooling water pipeline and cooling collecting tank to drying cylinder cools down, and prevents higher
The condensed water of temperature produces steam, is recrystallized into water indoors, so as to influence the quality of production of paper, while utilizes water pump pair again
Condensed water after cooling is reclaimed, but it does not make full use of to the condensed water of drying cylinder, is further improved.
The content of the invention
1st, to solve the problems, such as
For in existing paper machines production process, when the equipment such as hydraulic station, lubrication station cools down, water quality is poor in cooling water, meeting
The problem of causing internal heat exchanger plate fouling, the utility model provide a kind of paper machine dryer steam condensate (SC) and recycle system
System, condensed water caused by drying cylinder to be used for the cooling water of the equipment such as hydraulic station, lubrication station in the production of paper machine, avoid the knot of heat exchange
Dirt, ensure systems stay Effec-tive Function.
2nd, technical scheme
To solve the above problems, the utility model adopts the following technical scheme that.
A kind of paper machine dryer recycling system for steam condensate water, including drying cylinder, heat exchanger, bosh and warm water tank；
The drying cylinder has condensation-water drain, and the heat exchanger has Heating medium, heating agent outlet, refrigerant import and refrigerant exit；
The condensation-water drain of the drying cylinder connects the Heating medium of heat exchanger, the heating agent outlet connection cooling of heat exchanger by pipeline
Tank, the refrigerant import connection workshop clear water source of heat exchanger, the refrigerant exit connection warm water tank of heat exchanger.
As further improvement of the utility model, described drying cylinder has multiple, the condensation-water drain point of each drying cylinder
Do not connect a condensate water pot respectively by pipeline, condensate water pot connects heat exchanger by the road by one-level water pump.
As further improvement of the utility model, the one-level water pump of each drying cylinder of connection is connected to by pipeline
After one is concentrated fluid reservoir, then the Heating medium by two level water pump connection heat exchanger.
As further improvement of the utility model, the warm water tank is provided with heater.
As further improvement of the utility model, described warm water tank connects workshop clear water source by water pipe.
As further improvement of the utility model, the warm water tank is connected to the wet end and press section of paper machine by pump.
As further improvement of the utility model, described heat exchanger is pipe heat exchanger and plate type heat exchanger.
3rd, beneficial effect
Compared to prior art, the beneficial effects of the utility model are：
(1) the utility model paper machine dryer recycling system for steam condensate water, after drying cylinder is dried to paper in paper machine
Caused high-temperature condensation water is by carrying out heat exchange cooling after heat exchanger, water is passed through bosh after cooling, is the liquid of paper machine
The equipment that the needs such as pressure station, lubrication station are cooled down provides cooling water, because calcium iron ion content is very low in drying cylinder condensed water, from
And during cooling of the cooling water obtained through heat exchanger for paper machine equipment, the heat exchanger for the cooling of each equipment will not be caused
Internal incrustation, so as to ensure that paper machine cooling system is safe and reliable, continue efficiently to run；The refrigerant of heat exchanger in the system
Clear water from workshop, warm water tank storage is entered after heat exchange heats up, can be used for wet end, press section etc. in the production of paper machine
Cleaning showers, it is fully used；As can be seen here, the system can not only carry out recovery profit to steam condensate (SC) caused by drying cylinder
With, and solve in paper machine operation heat exchanger scale problems in the equipment such as hydraulic station, lubrication station, kill two birds with one stone, formed benign
Circulation；
(2) because in the production process of paper machine, drying cylinder more than one, therefore, the utility model paper machine dryer steam are cold
Condensate reutilization system, condensed water caused by multiple drying cylinders is stored with condensate water pot respectively, condensed water accumulates to necessarily
After amount, then it is delivered to one by one-level water pump and concentrates in fluid reservoir, the condensed water in the concentration fluid reservoir passes through two level water
Heat exchanger is pumped into, can both meet the heat exchange demand of heat exchanger, but also can be by another pipeline by condensed water
The power plant of paper machine production is delivered to, is heated into steam, is utilized so as to return to drying cylinder, forms circulation；
(3) the utility model paper machine dryer recycling system for steam condensate water, the warm water in warm water tank is for paper machine
The cleaning showers of wet end, press section etc., but the water temperature that heat exchanger exchanges to obtain sometimes can not reach water temperature needed for cleaning, therefore
Warm water tank sets heater, and wherein warm water is further heated, reaches required temperature, to meet cleaning requirement；And warm water tank
The water of storage is limited after all, possibly can not meet to clean dosage requirement, therefore warm water tank connects workshop clear water source by water pipe,
Can timely amount of makeup water；
(4) the utility model paper machine dryer recycling system for steam condensate water, heat exchanger can selecting pipes as needed
Formula heat exchanger or plate type heat exchanger, it is flexible and changeable, and also due to the system independent operating, the maintenance for heat exchanger is also square
Just；
(5) the utility model paper machine dryer recycling system for steam condensate water, it is simple in construction, it is reasonable in design, it is easily fabricated,
It is easy to promote the use of.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model paper machine dryer recycling system for steam condensate water.
In figure：1st, drying cylinder；2nd, heat exchanger；3rd, bosh；4th, warm water tank；5th, condensate water pot；6th, fluid reservoir is concentrated；7、
One-level water pump；8th, two level water pump.
Embodiment
The utility model is further described below with reference to specific embodiments and the drawings.
Embodiment 1
As shown in figure 1, the present embodiment provides a kind of paper machine dryer recycling system for steam condensate water, including drying cylinder 1, heat are handed over
Parallel operation 2, bosh 3 and warm water tank 4；Wherein, the drying cylinder 1 has condensation-water drain, and the heat exchanger 2 enters with heating agent
Mouth, heating agent outlet, refrigerant import and refrigerant exit；The condensation-water drain of the drying cylinder 1 connects the heat of heat exchanger 2 by pipeline
Matchmaker's import, the heating agent outlet connection bosh 3 of heat exchanger 2, the refrigerant import connection workshop clear water source of heat exchanger 2, heat
The refrigerant exit connection warm water tank 4 of exchanger 2.The cooling water that bosh 3 obtains can be passed to by pipeline paper machine hydraulic station,
The heat exchanger of lubrication station etc., for cooling to equipment；Warm water tank 4 is connected to the wet end and press section of paper machine by pump,
For wet end and the cleaning showers of press section.In the present embodiment, heat exchanger 2 can use pipe heat exchanger or plate-type heat-exchange
Device, selection, flexible and changeable as needed, and due to the system independent operating, the maintenance for heat exchanger 2 is also convenient for.
When in use, caused high-temperature condensation water passes through heat exchange to the system after drying cylinder 1 in paper machine is dried to paper
Heat exchange cooling is carried out after device 2, water is passed through bosh 3 after cooling, is cooled down for needs such as the hydraulic station of paper machine, lubrication statioies
Equipment provide cooling water, because calcium iron ion content is very low in the condensed water of drying cylinder 1, so as to obtained through heat exchanger 2 it is cold
But when water is used for the cooling of paper machine equipment, the internal heat exchanger fouling for the cooling of each equipment will not be caused, so as to ensure paper
Machine cooling system is safe and reliable, continues efficiently to run.Clear water of the refrigerant of heat exchanger 2 from workshop in the system, through heat
Stored after exchanging heating into warm water tank 4, can be used for the cleaning showers of wet end, press section etc. in the production of paper machine, obtain fully
Utilize；As can be seen here, the system can not only recycle to steam condensate (SC) caused by drying cylinder 1, and solve paper machine
Heat exchanger scale problems in the equipment such as hydraulic station, lubrication station, kill two birds with one stone in operation, form benign cycle.
Because in the production process of paper machine, the more than one of drying cylinder 1, generally require a lot, therefore, will in the present embodiment
The condensation-water drain of each drying cylinder 1 respectively connects a condensate water pot 5 by pipeline respectively, and condensate water pot 5 is passed through by one-level water pump 7
After pipeline is connected to a concentration fluid reservoir 6, then the Heating medium by the connection heat exchanger 2 of two level water pump 8, so, both may be used
To meet the heat exchange demand of heat exchanger 6, but also condensed water can be delivered to the power plant of paper machine production by another pipeline,
Steam is heated into, is utilized so as to return to drying cylinder 1, forms circulation.
It should be noted that the warm water in warm water tank 4 is the cleaning showers for the wet end of paper machine, press section etc., but have
When heat exchanger 2 exchange obtained water temperature and can not reach water temperature needed for cleaning, therefore, the warm water tank 4 of the present embodiment sets heating
Device, wherein warm water is further heated, reach required temperature, to meet cleaning requirement；And the water that warm water tank 4 stores is after all
It is limited, it possibly can not meet to clean dosage requirement, therefore warm water tank 4 connects workshop clear water source by water pipe, can supplement in time
Water, meet requirement.
Schematically the utility model and embodiments thereof are described above, this describes no restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So if this area
Those of ordinary skill enlightened by it, do not depart from the utility model create objective in the case of, without creativeness design
The frame mode similar to the technical scheme and embodiment, the scope of protection of the utility model all should be belonged to.
Claims (7)
1. a kind of paper machine dryer recycling system for steam condensate water, including drying cylinder (1) and heat exchanger (2), drying cylinder (1) tool
There is condensation-water drain, there is the heat exchanger (2) Heating medium, heating agent outlet, refrigerant import and refrigerant exit, its feature to exist
In：Also include bosh (3) and warm water tank (4)；The condensation-water drain of the drying cylinder (1) connects heat exchanger by pipeline
(2) Heating medium, the heating agent outlet connection bosh (3) of heat exchanger (2), the refrigerant import connection of heat exchanger (2)
Workshop clear water source, the refrigerant exit connection warm water tank (4) of heat exchanger (2).
A kind of 2. paper machine dryer recycling system for steam condensate water according to claim 1, it is characterised in that：Described baking
Cylinder (1) have it is multiple, the condensation-water drain of each drying cylinder (1) respectively connects a condensate water pot (5), condensed water by pipeline respectively
Tank (5) connects heat exchanger (2) by the road by one-level water pump (7).
A kind of 3. paper machine dryer recycling system for steam condensate water according to claim 2, it is characterised in that：The connection
After the one-level water pump (7) of each drying cylinder (1) is connected to a concentration fluid reservoir (6) by pipeline, then pass through two level water pump (8)
Connect the Heating medium of heat exchanger (2).
A kind of 4. paper machine dryer recycling system for steam condensate water according to claim 1, it is characterised in that：The warm water
Groove (4) is provided with heater.
A kind of 5. paper machine dryer recycling system for steam condensate water according to claim 4, it is characterised in that：Described temperature
Tank (4) connects workshop clear water source by water pipe.
A kind of 6. paper machine dryer recycling system for steam condensate water according to claim 4, it is characterised in that：The warm water
Groove (4) is connected to the wet end and press section of paper machine by pump.
7. a kind of paper machine dryer recycling system for steam condensate water according to any one in claim 1-6, its feature
It is：Described heat exchanger (2) is pipe heat exchanger and plate type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341912.4U CN206666921U (en) | 2017-04-01 | 2017-04-01 | A kind of paper machine dryer recycling system for steam condensate water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720341912.4U CN206666921U (en) | 2017-04-01 | 2017-04-01 | A kind of paper machine dryer recycling system for steam condensate water |
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| Publication Number | Publication Date |
|---|---|
| CN206666921U true CN206666921U (en) | 2017-11-24 |
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ID=60366685
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720341912.4U Active CN206666921U (en) | 2017-04-01 | 2017-04-01 | A kind of paper machine dryer recycling system for steam condensate water |
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| CN (1) | CN206666921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486946A (en) * | 2018-05-14 | 2018-09-04 | 昆明纳太科技有限公司 | Monoblock type hot vapour drying cylinder and its system applied to UTILIZATION OF VESIDUAL HEAT IN |
-
2017
- 2017-04-01 CN CN201720341912.4U patent/CN206666921U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486946A (en) * | 2018-05-14 | 2018-09-04 | 昆明纳太科技有限公司 | Monoblock type hot vapour drying cylinder and its system applied to UTILIZATION OF VESIDUAL HEAT IN |
| CN108486946B (en) * | 2018-05-14 | 2023-06-20 | 昆明纳太科技有限公司 | Integral hot steam dryer and system applied to waste heat utilization thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 243000 Anhui city in Ma'anshan Province, Huashan district and Road No. 3 Patentee after: Eagle International Holdings Ltd. Address before: 243000 Anhui city in Ma'anshan Province, Huashan district and Road No. 3 Patentee before: Anhui Shanying Paper Industry Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |