阅读说明：本技术 一种吸附回收余热综合利用系统及方法 (A kind of adsorption recovery waste heat comprehensive utilization system and method ) 是由 柴灵芝 王文超 纪麟肯 刘升 王士刚 刘涛 郭亮 于 2019-09-04 设计创作，主要内容包括：本发明涉及一种吸附回收余热综合利用系统及方法,属于余热回收领域。该系统包括解吸蒸汽出口、换热器,所述解吸蒸汽出口与换热器相连,还包括溴化锂制冷机,所述溴化锂制冷机的低温热水出口与换热器入水口相连通,所述溴化锂制冷机的高温热水入口与换热器出水口相连通。该系统及方法利用溴化锂制冷机将吸附回收过程的低温余热转化为深冷水用于自身消耗,解决了目前吸附回收解吸蒸汽用循环水冷凝造成大量的低温余热及循环水的浪费；同时进一步解决了间歇使用的解吸蒸汽不能直接用于溴化锂制冷机的问题,实现连续运行,适于大规模工业化推广。(The present invention relates to a kind of adsorption recovery waste heat comprehensive utilization system and methods, belong to waste heat recycling field.The system includes stripping vapor outlet, heat exchanger, the stripping vapor outlet is connected with heat exchanger, it further include lithium bromide refrigerator, the low-temperature water heating outlet of the lithium bromide refrigerator is connected with heat exchanger water inlet, and the high-temperature-hot-water entrance of the lithium bromide refrigerator is connected with heat exchanger water outlet.The system and method converts deep cooling water for the low temperature exhaust heat of adsorption recovery process using lithium bromide refrigerator and is used for itself consumption, solves the waste that current adsorption recovery stripping vapor causes a large amount of low temperature exhaust heat and recirculated water with circulating water condensing；The problem of intermittently used stripping vapor cannot be directly used to lithium bromide refrigerator is further solved simultaneously, realizes continuous operation, is suitable for large-scale industrialization promotion.)

1. a kind of adsorption recovery waste heat comprehensive utilization system, including stripping vapor outlet, heat exchanger, the stripping vapor outlet with Heat exchanger is connected, it is characterised in that and it further include lithium bromide refrigerator, the low-temperature water heating outlet and heat exchange of the lithium bromide refrigerator Device water inlet is connected, and the high-temperature-hot-water entrance of the lithium bromide refrigerator is connected with heat exchanger water outlet.

2. adsorption recovery waste heat comprehensive utilization system according to claim 1, it is characterised in that the system also includes heat Water buffer unit, the heat exchanger water outlet and heat exchanger water inlet pass through hot water buffer unit and the lithium bromide refrigerating respectively The high-temperature-hot-water entrance of machine is connected with low-temperature water heating outlet.

3. adsorption recovery waste heat comprehensive utilization system according to claim 2, it is characterised in that the hot water buffer unit Equipped with Low Temperature Thermal pool and high-temperature-hot-water area, Low Temperature Thermal pool is connected to high-temperature-hot-water area top.

4. adsorption recovery waste heat comprehensive utilization system according to claim 3, it is characterised in that the heat exchanger water outlet It is connected to respectively with the high-temperature-hot-water area of the hot water buffer unit and the Low Temperature Thermal pool with heat exchanger water inlet, the bromination The low-temperature water heating of lithium refrigeration machine export and high-temperature-hot-water entrance respectively with the Low Temperature Thermal pool of the hot water buffer unit and high temperature Hydrothermal area's connection.

5. adsorption recovery waste heat comprehensive utilization system according to claim 1 to 4, it is characterised in that the system is also Including deep cooling water water return tank, the deep cooling water water return tank top is equipped with deep cooling water water return outlet, deep cooling water water return tank water outlet and institute The deep cooling water inlet for stating lithium bromide refrigerator is connected, and the deep cooling water out of the lithium bromide refrigerator is connected with watering equipment It is logical.

6. a kind of adsorption recovery residual heat integrative based on any system of claim 1-5 utilizes method, it is characterised in that institute It states heat exchanger and is passed through the low-temperature water heating from lithium bromide refrigerator, form high-temperature-hot-water after stripping vapor enters heat exchanger heat exchange Into lithium bromide refrigerator.

7. adsorption recovery residual heat integrative according to claim 6 utilizes method, it is characterised in that described to come from lithium bromide system The low-temperature water heating of cold enters the hot water buffer unit, exchanges heat subsequently into heat exchanger；The high-temperature-hot-water from heat exchanger into Enter the hot water buffer unit, subsequently into lithium bromide refrigerator.

8. adsorption recovery residual heat integrative according to claim 7 utilizes method, it is characterised in that described to come from lithium bromide system The low-temperature water heating of cold enters the Low Temperature Thermal pool of the hot water buffer unit, and the high-temperature-hot-water enters the heat from heat exchanger The high-temperature-hot-water area of water buffer unit, subsequently into lithium bromide refrigerator.

9. utilizing method according to adsorption recovery residual heat integrative as claimed in claim 6 to 8, it is characterised in that the hot water is slow When the Low Temperature Thermal pool of flushing device and/or relatively low high-temperature-hot-water area liquid level, moisturizing is carried out to it.

10. adsorption recovery residual heat integrative according to claim 6 utilizes method, it is characterised in that the depth of the watering equipment Cold-water return enters lithium bromide refrigerator through deep cooling water water return tank, after freezing, then by the deep cooling water out of lithium bromide refrigerator Into watering equipment.

Technical field

The present invention relates to a kind of adsorption recovery waste heat comprehensive utilization systems, belong to waste heat recycling field.

The invention further relates to a kind of, and the adsorption recovery residual heat integrative based on above system utilizes method.

Background technique

The adsorption recovery equipment such as active carbon particle, activated carbon fibre is energy consumption rich and influential family, need to consume a large amount of vapor and Deep cooling water, annual operating cost are very huge.With 15000Nm³/ h air quantity, 3 casees 12 cores of methylene chloride discharge amount 900kg/h Illustrate for 60kg activated carbon fiber absorber.

If close for the absorbing recovery device stripping vapor instantaneous flow of 3 casees 12 core 60kg according to 7min desorption time 3.0t/h.It is 8.0min calculating according to switching time, actual average steam consumption reaches 2.63t/h, and water-oil factor is 2.74 or so. With year runing time 7200h, steam price is 200 yuan/t meter, and year steam expense is 3,550,000 yuan.Stripping vapor is divided into heating and steams Vapour and displacement steam, heating steam is condensed into water during heating compartment and fiber, and is adhered on fiber；Replacing steam will The VOCs being desorbed displaces cabinet, and displacement steam accounts for about the 30%--50% of total steam consumption, replaces steam discharge at present The condensation of recirculated water cooling condenser is generally led to after absorption casing, this does not only result in a large amount of low temperature exhaust heat waste, and needs to consume A large amount of recirculated water needs 300m for the ACF equipment of 3 casees 12 core 60kg³The recirculated water (according to 6 DEG C of temperature difference) of/h, energy wave Take serious.

Since fiber utilization light breeze is as dry wind, surface air cooler need to be arranged on second level air hose reduces the wet of light breeze Degree is 15000Nm according to second level air quantity to improve fiber drying effect³/ h, second level surface air cooler deep cooling water installed capacity are up to 77m³/ h (is cooled to 25 DEG C according to by light breeze, then is increased to 40 DEG C), and actual average consumption is about 40m³/ h, is run with year Time 7200h meter, deep cooling water price lattice are 1.35 yuan/m³, then second level surface air cooler year deep cooling water rate is 38.9 ten thousand yuan.In addition, In Under new environmental protection pressure, to reach environment protection standard, can generally connect runner technique after ACF, and runner itself is for waste gas humidity It is required that it is more stringent, also need to consume a large amount of deep cooling water to exhaust gas progress damping.

Summary of the invention

The object of the present invention is to provide a kind of adsorption recovery waste heat comprehensive utilization system and methods, for adsorption recovery process The waste of existing low temperature exhaust heat, and the problem of need to consume a large amount of deep cooling water, low temperature exhaust heat is converted using lithium bromide refrigerator It is consumed for deep cooling water for itself, solves current adsorption recovery stripping vapor with circulating water condensing and cause a large amount of low temperature exhaust heat And the waste of recirculated water；Further solving intermittently used stripping vapor cannot be directly used to asking for lithium bromide refrigerator simultaneously Topic realizes continuous operation, is suitable for large-scale industrialization promotion.

To achieve the above object, the present invention provides the following technical scheme that

A kind of adsorption recovery waste heat comprehensive utilization system, including stripping vapor outlet and heat exchanger, the stripping vapor go out Mouth is connected with heat exchanger, further includes lithium bromide refrigerator, and the low-temperature water heating outlet of the lithium bromide refrigerator enters water with heat exchanger Mouth is connected, and the high-temperature-hot-water entrance of the lithium bromide refrigerator is connected with heat exchanger water outlet.The heat exchanger can be with Condenser is connected, in order to which the stripping vapor after exchanging heat continues to condense.

Further, the system also includes hot water buffer unit, the heat exchanger water outlet and water inlet pass through respectively Hot water buffer unit is connected with the outlet of the high-temperature-hot-water entrance and low-temperature water heating of the lithium bromide refrigerator.By the way that hot water is arranged Buffer unit, can convert continuous heat medium water for the stripping vapor waste heat of interval and enter lithium bromide refrigerator and utilize, And form circulation.The volume of the hot water buffer unit is continuous hot water flow * adsorption recovery equipment switching time * k, wherein k For coefficient, value is between 1~3.

Further, the hot water buffer unit can also include Low Temperature Thermal pool and high-temperature-hot-water area, low-temperature water heating Area is connected to high-temperature-hot-water area top.The overflow effect being connected to by two area tops, further improves whole system and continuously transports Capable stability.The Low Temperature Thermal pool and high-temperature-hot-water area can be the bottom in the hot water buffer unit and set up For demarcation plate to be formed, the storage tank for being also possible to the connection of two top constitutes hot water buffer unit together.

The heat exchanger water outlet and water inlet respectively with the high-temperature-hot-water area of the hot water buffer unit and the low temperature Hydrothermal area connection, the lithium bromide refrigerator low-temperature water heating outlet and high-temperature-hot-water entrance respectively with the hot water buffer unit Low Temperature Thermal pool be connected to high-temperature-hot-water area.

The system also includes deep cooling water water return tank, the deep cooling water water return tank top is equipped with deep cooling water water return outlet, deep cooling Water water return tank water outlet is connected with the deep cooling water inlet of the lithium bromide refrigerator, and the deep cooling water of the lithium bromide refrigerator goes out Mouth is connected with watering equipment.

A kind of adsorption recovery residual heat integrative based on system above utilizes method:

The heat exchanger is passed through the low-temperature water heating from lithium bromide refrigerator, the shape after stripping vapor enters heat exchanger heat exchange Enter lithium bromide refrigerator at high-temperature-hot-water.

Further, the low-temperature water heating from lithium bromide refrigerator enters the hot water buffer unit, subsequently into Heat exchanger heat exchange；The high-temperature-hot-water enters the hot water buffer unit from heat exchanger, subsequently into lithium bromide refrigerator.

Further, the low-temperature water heating from lithium bromide refrigerator enters the Low Temperature Thermal of the hot water buffer unit Pool, the high-temperature-hot-water enters the high-temperature-hot-water area of the hot water buffer unit from heat exchanger, subsequently into lithium bromide refrigerating Machine.

After Low Temperature Thermal pool liquid level is low or desorption, stop transporting low temperature hot water to heat exchanger.

When the Low Temperature Thermal pool of the hot water buffer unit and/or relatively low high-temperature-hot-water area liquid level, moisturizing is carried out to it.

Further, it when the sum of two area's liquid level of Low Temperature Thermal pool and high-temperature-hot-water area is lower than liquid level warning value lower limit, opens Water compensating valve is opened, moisturizing is carried out to Low Temperature Thermal pool.

The deep cold-water return of the watering equipment enters lithium bromide refrigerator through deep cooling water water return tank, after freezing, then by The deep cooling water out of lithium bromide refrigerator enters watering equipment.When detecting that liquid level is relatively low in deep cooling water water return tank, mended Water is arranged deep cooling water water return tank, can also play the role of buffering, stablizes the cold water temperature into refrigeration machine, to reduce Fluctuation.

Compared with prior art, the present invention has the advantage that

(1) lithium bromide refrigerator is applied to absorbing recovery device, not only recycles a large amount of waste heats, but also the deep cooling generated Water can be used for itself consumption.

(2) pass through setting hot water buffer unit and be divided into Low Temperature Thermal pool and high-temperature-hot-water area, and setting deep cooling water returns Water pot realizes continuous and stable operation, and solving intermittently used stripping vapor cannot be directly used to asking for lithium bromide refrigerator Topic.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of adsorption recovery waste heat comprehensive utilization system of the invention.

Description of symbols in figure: stripping vapor exports 1, heat exchanger 2, heat exchanger water inlet 201, heat exchanger water outlet 202, bromine Change lithium refrigeration machine 3, high-temperature-hot-water entrance 301, low-temperature water heating outlet 302, generator 303, condenser 304, evaporator 305, inhale Receive device 306, deep cooling water inlet 307, deep cooling water out 308, first-stage condenser 4, hot water buffer unit 5, Low Temperature Thermal sink 501, High-temperature-hot-water slot 502, deep cooling water water return tank 6, deep cooling water water return outlet 601, deep cooling water water return tank water outlet 602, hot water heat exchange pump 7, heat-exchanger pump 8, water compensating valve 9.

Specific embodiment

The technical scheme of the present invention will be explained in further detail by way of example and in conjunction with the accompanying drawings, but is not limited to The content of the present embodiment.

A kind of adsorption recovery waste heat comprehensive utilization system, as shown in Figure 1, including stripping vapor outlet 1 and heat exchanger 2, solution Inhale steam (vapor) outlet 1 to be connected with heat exchanger 2, further include lithium bromide refrigerator 3, the low-temperature water heating of lithium bromide refrigerator 3 export 302 and Heat exchanger water inlet 201 is connected, and the high-temperature-hot-water entrance 301 of lithium bromide refrigerator is connected with heat exchanger water outlet 202.It changes Hot device 2 can also connect first-stage condenser 4, in order to which the stripping vapor after exchanging heat continues to condense.

The refrigerant of lithium bromide refrigerator 3 is water, and absorbent is lithium bromide concentrated solution, in lithium bromide refrigerator operational process In, after lithium bromide water solution is heated in generator 303 by the high-temperature-hot-water from high-temperature-hot-water entrance 301, in solution Steam turn to water vapour and enter condenser 304, condensed after the cooling water temperature in condenser 304, become high pressure low temperature Liquid water；When the liquid water enters evaporator 305 by throttle valve, rapid expansion and vaporize, and largely inhaled in vaporescence The heat for receiving chilled water in evaporator 305, to achieve the purpose that cooling refrigeration；In the process, low temperature water vapour enters suction Device 306 is received, is absorbed by the dense lithium-bromide solution from generator 303, solution concentration gradually reduces, then is occurred by circulation pumped back Device 303 completes entire circulation.

System in the present embodiment further includes hot water buffer unit 5, heat exchanger water outlet 202 and heat exchanger water inlet 201 It is connected respectively by hot water buffer unit 5 with the high-temperature-hot-water entrance 301 and low-temperature water heating of lithium bromide refrigerator 3 outlet 302.

Further, the hot water buffer unit 5 in the present embodiment further includes Low Temperature Thermal sink 501 and high-temperature-hot-water slot 502, Low Temperature Thermal sink 501 is connected to 502 top of high-temperature-hot-water slot.Low Temperature Thermal sink 501 and high-temperature-hot-water slot 502 are in hot water 5 bottom of buffer unit sets up demarcation plate and is formed.

The heat exchanger water outlet 202 and heat exchanger water inlet 201 high-temperature-hot-water with the hot water buffer unit 5 respectively Slot 502 is connected to Low Temperature Thermal sink 501, the low-temperature water heating outlet 302 of the lithium bromide refrigerator 3 and high-temperature-hot-water entrance 301 It is connected to respectively with the Low Temperature Thermal sink 501 of hot water buffer unit and high-temperature-hot-water slot 502.

System in the present embodiment further includes deep cooling water water return tank 6, and upper part is equipped with deep cooling water water return outlet 601, deep cooling water Water return tank water outlet 602 is connected with the deep cooling water inlet 307 of lithium bromide refrigerator 3, provides refrigerant by deep cooling water inlet 307 Water；The deep cooling water out 308 of lithium bromide refrigerator 3 is connected with watering equipment.

A kind of adsorption recovery residual heat integrative based on system described in the present embodiment utilizes method:

The heat exchanger 2 is passed through the low-temperature water heating from lithium bromide refrigerator 3, enters heat exchanger 2 through stripping vapor and exchanges heat High-temperature-hot-water is formed afterwards enters lithium bromide refrigerator 3.

Further, in this embodiment the low-temperature water heating from lithium bromide refrigerator 3 enters hot water buffer unit 5, then It exchanges heat into heat exchanger 2；High-temperature-hot-water enters hot water buffer unit 5 from heat exchanger 2, subsequently into lithium bromide refrigerator 3.

Further, in the present embodiment, the low-temperature water heating from lithium bromide refrigerator 3 with continuous low discharge store to The Low Temperature Thermal sink 501 of hot water buffer unit 5 opens hot water heat exchange pump 7 when detecting that desorption steam discharge pipeline has steam, will Low-temperature water heating in Low Temperature Thermal sink 501 is exchanged heat with sending to heat exchanger 2 for big flow, hot water heat exchange 7 variable frequency adjustments of pump, after heat exchange High-temperature-hot-water be back to high-temperature-hot-water slot 502 storage.Meanwhile heat-exchanger pump 8 continuously extracts the high warm of high-temperature-hot-water slot 502 out High-temperature-hot-water is delivered to lithium bromide refrigerator 3 and used by water.

After 501 liquid level of Low Temperature Thermal sink is low or desorption, hot water heat exchange pump 7 is closed, transporting low temperature hot water is stopped To heat exchanger 2.

When the Low Temperature Thermal sink 501 and/or relatively low 502 liquid level of high-temperature-hot-water slot of the hot water buffer unit 5, it is carried out Moisturizing.

Further, when the sum of 502 liang of tank liquor positions of Low Temperature Thermal sink 501 and high-temperature-hot-water slot are lower than liquid level warning value lower limit When, water compensating valve 9 is opened, moisturizing is carried out to Low Temperature Thermal sink 501.

The deep cold-water return of watering equipment enters lithium bromide refrigerator 3 through deep cooling water water return tank 6, after freezing, then by bromine The deep cooling water out 308 for changing lithium refrigeration machine 3 enters watering equipment.It, can be into when detecting that liquid level is relatively low in deep cooling water water return tank 6 Row moisturizing.