CN206873199U - A kind of energy-saving system of paper-making drying cylinder - Google Patents
A kind of energy-saving system of paper-making drying cylinder Download PDFInfo
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- CN206873199U CN206873199U CN201621467688.5U CN201621467688U CN206873199U CN 206873199 U CN206873199 U CN 206873199U CN 201621467688 U CN201621467688 U CN 201621467688U CN 206873199 U CN206873199 U CN 206873199U
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Abstract
It the utility model is related to a kind of energy-saving system of paper-making drying cylinder, drying cylinder (1), multistage flash evaporation unit and water temperature including being sequentially connected by condensing water conduit regulate and control unit, water temperature regulation and control unit includes cooling tower (3), cooling tower (3) is provided with condensation water inlet, clear water import and warm water outlet, the condensation water inlet of multistage flash evaporation unit and cooling tower connects, and warm water outlet is connected with the cleaning unit (4) for rinsing papermaking cylinder mould and felt.Compared with prior art, the utility model has the advantages that energy and water resource utilization efficiency are high, environmentally friendly.
Description
Technical field
Cleaning pulp technology for making paper is the utility model is related to, more particularly, to a kind of energy-saving system of paper-making drying cylinder.
Background technology
53 tons of BF12 paper machine day production capacities in paper mill, the ton paper steam consumption are 2.5 tons of vapour/ton paper, and daily drying cylinder is used for paper web
About 92 tons of condensed water caused by drying, about 95 DEG C of these condensed water water temperatures, condensed water are the hot mastication water of saturation, and
It is clean distilled water, is adapted to be used as boiler feedwater again.But I is taken charge of at present to concentrate steam supply, stops using boiler.Originally
It is to concentrate condensed water to deliver to tank, natural cooling is discharged again.So both consumption electric power, the good condensed water of quality is wasted again.
Therefore, for using concentrate steam supply paper mill for, take effective recovery system, at utmost the heat energy of recovery system and
Softened water is very important.
The content of the invention
The purpose of this utility model is exactly to provide a kind of energy and water the defects of overcoming above-mentioned prior art to exist
The level of resources utilization is high, the energy-saving system of paper-making drying cylinder of environmental protection.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of energy-saving system of paper-making drying cylinder, including drying cylinder, the multistage flash evaporation list being sequentially connected by condensing water conduit
Member and water temperature regulation and control unit, described water temperature regulation and control unit include cooling tower, described cooling tower be provided with condense water inlet,
The condensation water inlet of clear water import and warm water outlet, described multistage flash evaporation unit and cooling tower connects, and described warm water goes out
Mouth is connected with the cleaning unit for rinsing papermaking cylinder mould and felt.
As preferable technical scheme, described water temperature regulation and control unit also includes Liquid level component, described liquid level control
Component processed includes the liquid level sensor and control valve and the downflow weir for being arranged on cooling tower top by communicating connection, overflow
Weir is connected with overflow pipe.
As preferable technical scheme, the liquid level sensor and control valve of described communication connection use floating ball type liquid level control
Valve processed, the float ball type water level control valve are arranged on clear water import, the height of the ball float of float ball type water level control valve and downflow weir
Highly match.
As preferable technical scheme, described water temperature regulation and control unit also includes temperature-controlling module, described temperature control
Component processed includes a temperature sensor with control valve communication connection.
As preferable technical scheme, described multistage flash evaporation unit includes the first flash tank, the second flash tank, the 3rd sudden strain of a muscle
Steaming pot, heat pump and heat exchanger, each flash tank are equipped with condensation water inlet, condensation-water drain and steam (vapor) outlet, the first flash tank
Condensation water inlet and the condensation-water drain of drying cylinder connect, the steam (vapor) outlet of the first flash tank leads to heat pump, the first flash tank
Condensation-water drain is connected with the condensation water inlet of the second flash tank, and the steam (vapor) outlet of the second flash tank leads to heat exchanger, and second
The condensation-water drain of flash tank is connected with the condensation water inlet of the 3rd flash tank, the condensation-water drain and cooling water of the 3rd flash tank
The condensation water inlet connection of tower.
As preferable technical scheme, the steam (vapor) outlet of the 3rd described flash tank leads to air.
As preferable technical scheme, described clear water import is connected with fresh water pipeline, the steam (vapor) outlet of the 3rd flash tank
It is connected with fresh water pipeline by dividing wall type heat exchanger.
As preferable technical scheme, the bottom of described dividing wall type heat exchanger is provided with condensation-water drain, and the condensation
Water out and the condensing water conduit being arranged between multistage flash evaporation unit and cooling tower connect, described dividing wall type heat exchanger
Top is provided with steam (vapor) outlet.
As preferable technical scheme, described cleaning unit includes high-pressure hydraulic pump and is respectively connected with high-pressure hydraulic pump
Papermaking cylinder mould rinses tap and felt rinses tap, and the water inlet of described high-pressure hydraulic pump and the warm water of cooling tower export
Connection, the delivery port of high-pressure hydraulic pump are provided with switch valve with each junction for rinsing tap.
Compared with prior art, the utility model has the advantages that：
(1) heat energy of the condensed water of drying cylinder is reclaimed step by step using multistage flash evaporation unit, step by step in removal process, obtained
The energy grade obtained reduces successively, by using heat pump, heat exchanger, discharge air (or dividing wall type heat exchanger) successively to difference
The energy of grade is utilized, and improves energy utilization efficiency, and reduces the condensed water in drying cylinder directly discharging generation
Indirect steam polluted to caused by plant environment.
(2) the condensed water energy grade caused by multistage flash evaporation unit is not high, but is clean distilled water, pass through by
It is passed through in cooling tower together with clear water, the warm water of about 30~40 DEG C of manufacture, supplies the flushing of papermaking cylinder mould and felt
Unit, the waste of condensed water is avoided, and caused warm water is used for cleaning papermaking cylinder mould and the direct use of felt effect ratio
Clear water, which rinses, well much to improve cleaning efficiency.And avoid the individually energy dissipation to clear water heating.
(3) cooling tower avoids excessive waste clear water by liquid level sensor (ball float), once in cooling tower
Water storage is excessive, is sensed by liquid level sensor, is shut off clear water, avoids the waste of clear water.
(4) temperature sensor and the control valve communication of clear water entrance connect, can be real-time by the temperature in cooling tower
Feedback, clear water flow is adjusted, avoid wasting clear water, by being used cooperatively for liquid level sensor and temperature sensor, avoided clear
The waste of water, and make it that the water temperature control in cooling tower is more stable.
(5) heat exchange is carried out to the steam of the 3rd flash tank by dividing wall type heat exchanger, heating is clear into cooling tower
Water, further increases energy utilization efficiency, and caused condensed water also improves the utilization rate of condensed water.Pass through the technical program
Measure, produce paper per ton and economize on water 2 tons, water-saving result is obvious.
Brief description of the drawings
Fig. 1 is connection diagram of the present utility model.
In figure, 1 is drying cylinder, and 21 be the first flash tank, and 22 be the second flash tank, and 23 be the 3rd flash tank, and 24 be heat pump,
25 be heat exchanger, and 3 be cooling tower, and 31 be control valve, and 32 be ball float, and 33 be temperature sensor, and 34 be fresh water pipeline, and 35 are
Downflow weir, 36 be overflow pipe, and 4 be cleaning unit, and 41 be high-pressure hydraulic pump, and 42 be that papermaking cylinder mould rinses tap, and 43 be felt
Tap is rinsed, 44 be switch valve, and 5 be dividing wall type heat exchanger.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of energy-saving system of paper-making drying cylinder, as shown in figure 1, including be sequentially connected by condensing water conduit drying cylinder 1,
Multistage flash evaporation unit and water temperature regulation and control unit, water temperature regulation and control unit include cooling tower 3, and cooling tower 3 enters provided with condensed water
The condensation water inlet of mouth, clear water import and warm water outlet, multistage flash evaporation unit and cooling tower connects, and warm water outlet is connected with use
In the cleaning unit 4 for rinsing papermaking cylinder mould and felt.
Wherein, multistage flash evaporation unit includes the first flash tank 21, the second flash tank 22, the 3rd flash tank 23, the and of heat pump 24
Heat exchanger 25, each flash tank are equipped with condensation water inlet, condensation-water drain and steam (vapor) outlet, the condensed water of the first flash tank 21
Import is connected with the condensation-water drain of drying cylinder 1, and the steam (vapor) outlet of the first flash tank 21 leads to heat pump 24, the first flash tank 21 it is cold
Condensate outlet is connected with the condensation water inlet of the second flash tank 22, and the steam (vapor) outlet of the second flash tank 22 leads to heat exchanger 25,
The condensation-water drain of second flash tank 22 is connected with the condensation water inlet of the 3rd flash tank 23, and the condensed water of the 3rd flash tank 23 goes out
Mouth is connected with the condensation water inlet of cooling tower 3.Clear water import is connected with fresh water pipeline 34, the steam (vapor) outlet of the 3rd flash tank 23
It is connected with fresh water pipeline 34 by dividing wall type heat exchanger 5.The bottom of dividing wall type heat exchanger 5 is provided with condensation-water drain, and this is cold
The condensing water conduit that condensate is exported and is arranged between multistage flash evaporation unit and cooling tower 3 connects, dividing wall type heat exchanger 5
Top is provided with steam (vapor) outlet.
The cooling tower diameter 2m of the present embodiment, high 5.5m, water temperature, which regulates and controls unit, also includes Liquid level component and temperature
Control assembly, Liquid level component are included by communicating the liquid level sensor connected and control valve 31 and being arranged on cooling tower
The downflow weir 35 on 3 tops, downflow weir 35 are connected with overflow pipe 36.The liquid level sensor and control valve 31 of communication connection are using floating
Ball fluid level control valve, the float ball type water level control valve are arranged on clear water import, the height of the ball float 32 of float ball type water level control valve
To spend and match with the height of downflow weir 35, temperature-controlling module includes a temperature sensor 33 with the communication connection of control valve 31,
Water in cooling tower is become to 35 DEG C of warm water by Liquid level component and temperature-controlling module.
Cleaning unit 4 includes high-pressure hydraulic pump 41 and the papermaking cylinder mould being connected respectively with high-pressure hydraulic pump 41 rinses tap 42
Tap 43 is rinsed with felt, the water inlet of high-pressure hydraulic pump 41 connects with the warm water outlet of cooling tower 3, high-pressure hydraulic pump 41
Delivery port is provided with switch valve 44 with each junction for rinsing tap.
Embodiment 2
A kind of energy-saving system of paper-making drying cylinder, including drying cylinder 1, the multistage flash evaporation list being sequentially connected by condensing water conduit
Member and water temperature regulation and control unit, water temperature regulation and control unit include cooling tower 3, cooling tower 3 be provided with condense water inlet, clear water import and
Warm water is exported, and the condensation water inlet of multistage flash evaporation unit and cooling tower connects, and warm water outlet is connected with for rinsing wire-cloth
The cleaning unit 4 of cage and felt.
Wherein, multistage flash evaporation unit includes the first flash tank 21, the second flash tank 22, the 3rd flash tank 23, the and of heat pump 24
Heat exchanger 25, each flash tank are equipped with condensation water inlet, condensation-water drain and steam (vapor) outlet, the condensed water of the first flash tank 21
Import is connected with the condensation-water drain of drying cylinder 1, and the steam (vapor) outlet of the first flash tank 21 leads to heat pump 24, the first flash tank 21 it is cold
Condensate outlet is connected with the condensation water inlet of the second flash tank 22, and the steam (vapor) outlet of the second flash tank 22 leads to heat exchanger 25,
The condensation-water drain of second flash tank 22 is connected with the condensation water inlet of the 3rd flash tank 23, and the condensed water of the 3rd flash tank 23 goes out
Mouth is connected with the condensation water inlet of cooling tower 3.The steam (vapor) outlet of 3rd flash tank 23 leads to air.
Water temperature regulation and control unit also includes Liquid level component, and Liquid level component includes the level sensing by communicating connection
Device and control valve 31 and the downflow weir 35 for being arranged on the top of cooling tower 3, downflow weir 35 are connected with overflow pipe 36.The communication connects
The liquid level sensor and control valve 31 connect uses float ball type water level control valve, and the float ball type water level control valve is arranged on clear water and entered
Mouthful, the height and the height of downflow weir 35 of the ball float 32 of float ball type water level control valve match.
Cleaning unit 4 includes high-pressure hydraulic pump 41 and the papermaking cylinder mould being connected respectively with high-pressure hydraulic pump 41 rinses tap 42
Tap 43 is rinsed with felt, the water inlet of high-pressure hydraulic pump 41 connects with the warm water outlet of cooling tower 3, high-pressure hydraulic pump 41
Delivery port is provided with switch valve 44 with each junction for rinsing tap.
Claims (9)
1. a kind of energy-saving system of paper-making drying cylinder, it is characterised in that including the drying cylinder being sequentially connected by condensing water conduit
(1), multistage flash evaporation unit and water temperature regulation and control unit, described water temperature regulation and control unit include cooling tower (3), described cooling water
Tower (3) is provided with condensation water inlet, clear water import and warm water and exported, and the condensed water of described multistage flash evaporation unit and cooling tower enters
Mouth connection, the outlet of described warm water are connected with the cleaning unit (4) for rinsing papermaking cylinder mould and felt.
2. the energy-saving system of a kind of paper-making drying cylinder according to claim 1, it is characterised in that described water temperature regulation and control are single
Member also includes Liquid level component, and described Liquid level component includes the liquid level sensor and control valve by communicating connection
(31) and the downflow weir (35) on cooling tower (3) top is arranged on, downflow weir (35) is connected with overflow pipe (36).
3. the energy-saving system of a kind of paper-making drying cylinder according to claim 2, it is characterised in that described communication connection
Liquid level sensor and control valve (31) use float ball type water level control valve, and the float ball type water level control valve is arranged on clear water import,
The height and the height of downflow weir (35) of the ball float (32) of float ball type water level control valve match.
4. the energy-saving system of a kind of paper-making drying cylinder according to claim 2, it is characterised in that described water temperature regulation and control are single
Member also includes temperature-controlling module, and described temperature-controlling module includes a temperature sensor with control valve (31) communication connection
(33)。
A kind of 5. energy-saving system of paper-making drying cylinder according to claim 1, it is characterised in that described multistage flash evaporation list
Member includes the first flash tank (21), the second flash tank (22), the 3rd flash tank (23), heat pump (24) and heat exchanger (25), respectively
Flash tank is equipped with condensation water inlet, condensation-water drain and steam (vapor) outlet, the condensation water inlet and drying cylinder of the first flash tank (21)
(1) condensation-water drain connection, the steam (vapor) outlet of the first flash tank (21) lead to heat pump (24), the condensation of the first flash tank (21)
Water out is connected with the condensation water inlet of the second flash tank (22), and the steam (vapor) outlet of the second flash tank (22) leads to heat exchanger
(25), the condensation-water drain of the second flash tank (22) is connected with the condensation water inlet of the 3rd flash tank (23), the 3rd flash tank
(23) condensation-water drain is connected with the condensation water inlet of cooling tower (3).
A kind of 6. energy-saving system of paper-making drying cylinder according to claim 5, it is characterised in that the 3rd described flash tank
(23) steam (vapor) outlet leads to air.
7. the energy-saving system of a kind of paper-making drying cylinder according to claim 5, it is characterised in that described clear water import connects
Fresh water pipeline (34) is connected to, the steam (vapor) outlet of the 3rd flash tank (23) is connected with fresh water pipeline (34) by dividing wall type heat exchanger (5)
Connect.
A kind of 8. energy-saving system of paper-making drying cylinder according to claim 7, it is characterised in that described wall-type heat exchange
The bottom of device (5) is provided with condensation-water drain, and the condensation-water drain and be arranged on multistage flash evaporation unit and cooling tower (3) it
Between condensing water conduit connection, the top of described dividing wall type heat exchanger (5) is provided with steam (vapor) outlet.
A kind of 9. energy-saving system of paper-making drying cylinder according to claim 1, it is characterised in that described cleaning unit
(4) include high-pressure hydraulic pump (41) and the papermaking cylinder mould being connected respectively with high-pressure hydraulic pump (41) rinses leading (42) and felt
Rinse leading (43), the water inlet of described high-pressure hydraulic pump (41) connects with the warm water outlet of cooling tower (3), high-pressure hydraulic pump
(41) delivery port is provided with switch valve (44) with each junction for rinsing tap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621467688.5U CN206873199U (en) | 2016-12-29 | 2016-12-29 | A kind of energy-saving system of paper-making drying cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621467688.5U CN206873199U (en) | 2016-12-29 | 2016-12-29 | A kind of energy-saving system of paper-making drying cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN206873199U true CN206873199U (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621467688.5U Active CN206873199U (en) | 2016-12-29 | 2016-12-29 | A kind of energy-saving system of paper-making drying cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252150A (en) * | 2016-12-29 | 2018-07-06 | 上海东冠纸业有限公司 | A kind of energy-saving system of paper-making drying cylinder |
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2016
- 2016-12-29 CN CN201621467688.5U patent/CN206873199U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252150A (en) * | 2016-12-29 | 2018-07-06 | 上海东冠纸业有限公司 | A kind of energy-saving system of paper-making drying cylinder |
| CN108252150B (en) * | 2016-12-29 | 2024-01-23 | 上海东冠纸业有限公司 | Energy-saving and consumption-reducing system of papermaking drying cylinder |
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