CN205275221U - Vapor -recovery unit of salt prunella coproduction - Google Patents
Vapor -recovery unit of salt prunella coproduction Download PDFInfo
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- CN205275221U CN205275221U CN201520927561.6U CN201520927561U CN205275221U CN 205275221 U CN205275221 U CN 205275221U CN 201520927561 U CN201520927561 U CN 201520927561U CN 205275221 U CN205275221 U CN 205275221U
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Abstract
The utility model provides a vapor -recovery unit of salt prunella coproduction, includes salt manufacturing vaporization system, salt manufacturing vaporization system includes through consecutive I effect to the V effect evaporating pots of pipeline, I imitates to V corresponding first condensation cask, second condensation cask, third condensation cask, fourth condensation cask and the 5th condensation casks of liquid outlet difference tube coupling of imitating the evaporating pot, the gas outlet difference tube coupling I corresponding air inlets of imitating evaporating pot, II effect evaporating pots, III effect evaporating pots and V effect evaporating pots of first condensation cask, second condensation cask, third condensation cask and the 5th condensation cask, the gas outlet of fourth condensation cask is tube coupling flash vapour scrubber, compressor and mix the steam chamber in proper order, the equipment that needs the heat source in the gas outlet connection salt manufacturing vaporization system of mixed steam chamber. The utility model discloses heat utilization rate is high, and the energy consumption is low, greatly reduced production and use cost.
Description
Technical field
The utility model relates to a kind of joint production process of salt and salt-cake, the particularly vapor-recovery unit of a kind of salt nitre coproduction.
Background technology
Sodium sulphate type bittern evaporation salt-making mother liquor reclaims joint production process of salt and salt-cake, is from external introduction at first, and salt manufacturing evaporation, from three effects to four effects, has nowadays developed into five effects even six effect. (thick line represents that water of condensation moves towards as shown in Figure 1, fine rule represents that steam moves towards): existing salt nitre five imitates the steam of coproduction, water of condensation ground idiographic flow is: EV201 feed liquid is heated by the heating chamber that raw steam enters I effect evaporating pot (EV201), water of condensation after heat exchange enters the first condensed water bucket (VP201), water of condensation shwoot vapour in VP201 enters the heating chamber of EV201 again by shwoot steam pipe, the high-temperature condensation water of VP201 enters the 6th condensed water bucket (VP206) shwoot cooling by the first preheater (HE211), VP206 shwoot vapour enters the heating chamber of III effect evaporating pot (EV203), water of condensation enters the 7th condensed water bucket (VP207) shwoot cooling, VP207 shwoot vapour enters the heating chamber of IV effect evaporating pot (EV204), if water of condensation is qualified, beat power station, if defective, beat the 5th condensed water bucket (VP205), the secondary steam that EV201 feed liquid explosive evaporatoin produces enters heating chamber and the 2nd preheater (HE210) of II effect evaporating pot (EV202) by two steam pipe roads at evaporating pot top, respectively feed liquid is heated and bittern is carried out preheating, the water of condensation of secondary steam condensation enters the 2nd condensed water bucket (VP202), the water of condensation shwoot vapour of VP202 enters two steam pipe roads of EV202 again, and water of condensation then proceeds to the 3rd condensed water bucket (VP203). the steam of EV202-EV204 and water of condensation move towards identical. the secondary steam of V effect evaporating pot (EV205) then enters pressure condenser and carries out condensation, pulls vacuum by recirculated cooling water (comprise on water coolant under water and water coolant water) and vacuum pump cooperation. the mixing condensation water of VP205 enters sealing water pail by plate-type heat exchanger (HE206), as the sealing water of pump.
Owing to five effect evaporations are compared with six effects, secondary steam is poorer than six effect energy utilization with the utilization of water of condensation. For five effect evaporation technologies, how the recycling of water of condensation shwoot vapour is got up, it is one of the behave of current cost-saving raising efficiency of energy utilization.
Practical novel content
The purpose of this utility model overcomes the above-mentioned deficiency of prior art and provides a kind of heat utilization rate height, and energy consumption is low, the vapor-recovery unit of cost-saving salt nitre coproduction.
The technical solution of the utility model is: the vapor-recovery unit of a kind of salt nitre coproduction, comprise salt manufacturing vapo(u)rization system, described salt manufacturing vapo(u)rization system comprise by pipeline successively be connected I effect to V effect evaporating pot, described I effect to V effect evaporating pot liquid outlet respectively pipeline connect the first corresponding condensed water bucket, the 2nd condensed water bucket, the 3rd condensed water bucket, the 4th condensed water bucket and the 5th condensed water bucket; Pipeline connects I corresponding effect evaporating pot respectively, II effect evaporating pot, III imitates evaporating pot and the inlet mouth of V effect evaporating pot in the air outlet of described first condensed water bucket, the 2nd condensed water bucket, the 3rd condensed water bucket and the 5th condensed water bucket, the air outlet of described 4th condensed water bucket is pipeline connection shwoot vapour washer, compressor and mixing steam room successively, and the air outlet of described mixing steam room connects the equipment needing thermal source in salt manufacturing vapo(u)rization system.
Further, the air outlet of described mixing steam room connects the inlet mouth of I effect evaporating pot.
Further, the liquid outlet of described first condensed water bucket connects shwoot vapour washer through the first preheater, the 6th condensed water bucket and the 7th condensed water bucket successively.
Further, the air outlet of described 6th condensed water bucket and the 7th condensed water bucket connects III effect evaporating pot and the inlet mouth of IV effect evaporating pot respectively.
Further, described I effect evaporating pot, II effect evaporating pot, III effect evaporating pot and IV effect evaporating pot air outlet respectively pipeline connect the inlet mouth of the 2nd corresponding preheater, the 3rd preheater, the 4th preheater and the 5th preheater; The liquid outlet of described 2nd preheater, the 3rd preheater, the 4th preheater and the 5th preheater respectively pipeline connect the fluid inlet of the 2nd corresponding condensed water bucket, the 3rd condensed water bucket, the 4th condensed water bucket and the 5th condensed water bucket; The liquid outlet of described 2nd condensed water bucket successively pipeline connect the fluid inlet of the 3rd condensed water bucket, the 4th condensed water bucket and the 5th condensed water bucket; Air outlet pipeline connection condenser and the circulating water system successively of described V effect evaporating pot; The liquid outlet of described 5th condensed water bucket connects interchanger and sealing water pail successively.
Further, the water port of described shwoot vapour washer connects the 5th condensed water bucket.
Further, the material of described shwoot vapour washer is stainless steel or titanium alloy.
The utility model compared with prior art has following feature:
(1) after the shwoot vapour of the 4th condensed water bucket being collected washing, compress with compressor, consume electric energy and low enthalpy energy is become high enthalpy heat energy, thermal source made by the heating chamber sending into I effect evaporating pot, make this part steam recycled for multiple times, thus save the usage quantity of primary steam, and increase and return power plant's high-temperature condensation water amount, save power plant's energy consumption;
(2) increasing shwoot vapour washing device before entering compressor, impeller burn into impacts, scale formation to prevent the chlorion carried secretly in shwoot vapour from being produced by compressor;
(3) before shwoot vapour enters I effect evaporating pot, increase mixing steam room, with reduce after because of compression be hot steam to the disadvantageous effect of condensation heat transfer, avoid and primary steam impact to heating chamber when heating chamber mixes;
(4) comparing existing five effect vacuum salt production technology, the utility model can make ton product salt save primary steam consumption about 4%, about 0.03 ton, newly-increased about 2.5kwh, ton product salt is newly-increased returns condensed water in power plant amount 0.0275m3, about 2%, and ton product salt total saving conversion mark coal is about 1.8kg.
Accompanying drawing explanation
Fig. 1 is that in prior art, salt nitre five imitates the steam of coproduction, the schematic flow sheet of water of condensation;
Fig. 2 is that the utility model salt nitre five imitates the steam of coproduction, the schematic flow sheet of water of condensation.
Embodiment
Below in conjunction with the drawings and specific embodiments, detailed construction of the present utility model is further described.
The vapor-recovery unit of a kind of salt nitre coproduction, comprise salt manufacturing vapo(u)rization system, salt manufacturing vapo(u)rization system comprise by pipeline successively be connected I effect evaporating pot (EV201), II effect evaporating pot (EV202), III effect evaporating pot (EV203), IV effect evaporating pot (EV204) and V effect evaporating pot (EV205), I effect to V imitate evaporating pot liquid outlet respectively pipeline connect corresponding the first condensed water bucket (VP201), the 2nd condensed water bucket (VP202), the 3rd condensed water bucket (VP203), the 4th condensed water bucket (VP204) and the 5th condensed water bucket (VP205); Pipeline connects I corresponding effect evaporating pot (EV201) respectively, II effect evaporating pot (EV202), III imitates evaporating pot (EV203) and the inlet mouth of V effect evaporating pot (EV205) in the air outlet of the first condensed water bucket (VP201), the 2nd condensed water bucket (VP202), the 3rd condensed water bucket (VP203) and the 5th condensed water bucket (VP205), the air outlet of the 4th condensed water bucket (VP204) is pipeline connection shwoot vapour washer, compressor and mixing steam room successively, and the air outlet of mixing steam room connects the equipment needing thermal source in salt manufacturing vapo(u)rization system. Wherein, owing to I effect evaporating pot (EV201) is as first effect heating chamber, its heating steam to utilize number of times to be maximum in whole system, it is preferred to the air outlet of mixing steam room connects the inlet mouth of I effect evaporating pot.
The liquid outlet of the first condensed water bucket (VP201) connects shwoot vapour washer through the first preheater (HE211), the 6th condensed water bucket (VP206) and the 7th condensed water bucket (VP207) successively. The air outlet of the 6th condensed water bucket (VP206) and the 7th condensed water bucket (VP207) connects III effect evaporating pot (EV203) and the inlet mouth of IV effect evaporating pot (EV204) respectively.
I effect evaporating pot (EV201), II effect evaporating pot (EV202), III effect evaporating pot (EV203) and IV imitate evaporating pot (EV204) air outlet respectively pipeline connect the inlet mouth of the 2nd corresponding preheater (HE210), the 3rd preheater (HE209), the 4th preheater (HE208) and the 5th preheater (HE207). The liquid outlet of the 2nd preheater (HE210), the 3rd preheater (HE209), the 4th preheater (HE208) and the 5th preheater (HE207) respectively pipeline connect the fluid inlet of the 2nd corresponding condensed water bucket (VP202), the 3rd condensed water bucket (VP203), the 4th condensed water bucket (VP204) and the 5th condensed water bucket (VP205). The liquid outlet of the 2nd condensed water bucket (VP202) successively pipeline connect the fluid inlet of the 3rd condensed water bucket (VP203), the 4th condensed water bucket (VP204) and the 5th condensed water bucket (VP205). The air outlet of V effect evaporating pot (EV205) is pipeline connection pressure condenser and circulating water system successively. The liquid outlet of the 5th condensed water bucket (VP205) connecting plate type interchanger (HE206) and sealing water pail successively. The water port of shwoot vapour washer connects the 5th condensed water bucket (VP205). The material of the shwoot vapour washer in the present embodiment adopts 2507 stainless steels or TA10 titanic alloy machining to make, and can improve equipment resisting corrosion of chlorine ion ability, extend work-ing life, prevents bringing out vacuum system because of leakage and is destroyed.
The working process of the present embodiment is: the feed liquid in it is heated by the heating chamber that primary steam enters I effect evaporating pot (EV201), the water of condensation produced after heat exchange enters the first condensed water bucket (VP201), the heating chamber that the shwoot vapour produced after water of condensation shwoot in first condensed water bucket (VP201) enters I effect evaporating pot (EV201) by pipeline again utilizes as thermal source, the high-temperature condensation water that first condensed water bucket (VP201) produces enters the 6th condensed water bucket (VP206) shwoot cooling by the first preheater (HE211), the shwoot vapour of the 6th condensed water bucket (VP206) enters the heating chamber of III effect evaporating pot (EV203), water of condensation then enters the 7th condensed water bucket (VP207) shwoot cooling, the shwoot vapour of the 7th condensed water bucket (VP207) enters the heating chamber of IV effect evaporating pot (EV204), water of condensation then enters shwoot vapour washer water as a supplement.
The secondary steam that the feed liquid explosive evaporatoin of I effect evaporating pot (EV201) produces enters heating chamber and the 2nd preheater (HE210) of II effect evaporating pot (EV202) by two steam pipe roads, feed liquid being heated respectively and bittern is carried out preheating, the water of condensation of secondary steam condensation then enters the 2nd condensed water bucket (VP202); The secondary steam that the feed liquid explosive evaporatoin of II effect evaporating pot (EV202) produces enters heating chamber and the 3rd preheater (HE209) of III effect evaporating pot (EV203) by two steam pipe roads, feed liquid being heated respectively and bittern is carried out preheating, the water of condensation of secondary steam condensation then enters the 3rd condensed water bucket (VP203) shwoot recovery part heat in the lump with the water of condensation in II effect evaporating pot (EV202). The steam of III effect evaporating pot (EV203) and IV effect evaporating pot (EV204) and water of condensation trend, with II effect evaporating pot (EV202), do not repeat them here. The secondary steam of V effect evaporating pot (EV205) then enters pressure condenser and carries out condensation, pulls vacuum by recirculated cooling water (comprise on water coolant under water and water coolant water) and vacuum pump cooperation. The mixing condensation water of V effect evaporating pot (EV205) enters sealing water pail by plate-type heat exchanger (HE206), as the sealing water of pump.
Compressor in the present embodiment adopts open radial compressor, increases shwoot vapour washing device before entering compressor, and impeller burn into impacts, scale formation to prevent the chlorion carried secretly in shwoot vapour from being produced by compressor. The make up water of shwoot vapour washer adopts the water of condensation of the 7th condensed water bucket (VP207) of similar high-temperature, and the discharge of wastewater after washing is to the 5th condensed water bucket (VP205). Before the heating chamber entering I effect evaporating pot (EV201), increase mixing steam room, with reduce after because of compression be hot steam to the disadvantageous effect of condensation heat transfer, avoid and primary steam impact to heating chamber when heating chamber mixes.
In addition, why the utility model does not adopt the shwoot vapour of the 5th condensed water bucket (VP205) or the shwoot vapour of the 3rd condensed water bucket (VP203) to imitate the thermal source of evaporating pot (EV201) as I, it is because the shwoot vapour of the 3rd condensed water bucket (VP203) is also once recycling, plays energy efficient capacity; And the shwoot vapour of the 5th condensed water bucket (VP205) is in technological process, its temperature and heat content are very low, and quantity of steam is little, and cost squeeze is higher.
The shwoot vapour of the 4th condensed water bucket (VP204) is collected by the utility model, after washing with the water of condensation of the 7th condensed water bucket (VP207), compress with compressor, consume electric energy and low enthalpy energy is become high enthalpy heat energy, thermal source made by the heating chamber sending into I effect evaporating pot (EV201), makes this part steam recycled for multiple times, thus saves the usage quantity of primary steam, and increase and return power plant's high-temperature condensation water amount, save power plant's energy consumption. Compare existing five effect vacuum salt production technology, ton product salt can be made to save primary steam consumption about 4%, about 0.03 ton, newly-increased about 2.5kwh, ton product salt is newly-increased returns condensed water in power plant amount 0.0275m3, about 2%, and ton product salt total saving conversion mark coal is about 1.8kg.
Claims (7)
1. the vapor-recovery unit of a salt nitre coproduction, it is characterized in that: comprise salt manufacturing vapo(u)rization system, described salt manufacturing vapo(u)rization system comprise by pipeline successively be connected I effect to V effect evaporating pot, described I effect to V effect evaporating pot liquid outlet respectively pipeline connect the first corresponding condensed water bucket, the 2nd condensed water bucket, the 3rd condensed water bucket, the 4th condensed water bucket and the 5th condensed water bucket; Pipeline connects I corresponding effect evaporating pot respectively, II effect evaporating pot, III imitates evaporating pot and the inlet mouth of V effect evaporating pot in the air outlet of described first condensed water bucket, the 2nd condensed water bucket, the 3rd condensed water bucket and the 5th condensed water bucket, the air outlet of described 4th condensed water bucket is pipeline connection shwoot vapour washer, compressor and mixing steam room successively, and the air outlet of described mixing steam room connects the equipment needing thermal source in salt manufacturing vapo(u)rization system.
2. the vapor-recovery unit of salt nitre coproduction according to claim 1, it is characterised in that: the air outlet of described mixing steam room connects the inlet mouth of I effect evaporating pot.
3. the vapor-recovery unit of salt nitre coproduction according to claim 1 or 2, it is characterised in that: the liquid outlet of described first condensed water bucket connects shwoot vapour washer through the first preheater, the 6th condensed water bucket and the 7th condensed water bucket successively.
4. the vapor-recovery unit of salt nitre coproduction according to claim 3, it is characterised in that: the air outlet of described 6th condensed water bucket and the 7th condensed water bucket connects III effect evaporating pot and the inlet mouth of IV effect evaporating pot respectively.
5. the vapor-recovery unit of salt nitre coproduction according to claim 3, it is characterised in that: described I effect evaporating pot, II effect evaporating pot, III effect evaporating pot and IV effect evaporating pot air outlet respectively pipeline connect the inlet mouth of the 2nd corresponding preheater, the 3rd preheater, the 4th preheater and the 5th preheater; The liquid outlet of described 2nd preheater, the 3rd preheater, the 4th preheater and the 5th preheater respectively pipeline connect the fluid inlet of the 2nd corresponding condensed water bucket, the 3rd condensed water bucket, the 4th condensed water bucket and the 5th condensed water bucket; The liquid outlet of described 2nd condensed water bucket successively pipeline connect the fluid inlet of the 3rd condensed water bucket, the 4th condensed water bucket and the 5th condensed water bucket; Air outlet pipeline connection condenser and the circulating water system successively of described V effect evaporating pot; The liquid outlet of described 5th condensed water bucket connects interchanger and sealing water pail successively.
6. the vapor-recovery unit of salt nitre coproduction according to claim 1 or 2, it is characterised in that: the water port of described shwoot vapour washer connects the 5th condensed water bucket.
7. the vapor-recovery unit of salt nitre coproduction according to claim 1 or 2, it is characterised in that: the material of described shwoot vapour washer is stainless steel or titanium alloy.
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CN201520927561.6U CN205275221U (en) | 2015-11-20 | 2015-11-20 | Vapor -recovery unit of salt prunella coproduction |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105271308A (en) * | 2015-11-20 | 2016-01-27 | 湖南省湘衡盐化有限责任公司 | Vapor recovery method and device for salt and sodium sulfate co-production |
CN114516646A (en) * | 2022-03-19 | 2022-05-20 | 四川西秦盐化科技有限公司 | Efficient and energy-saving salt and nitrate co-production process |
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- 2015-11-20 CN CN201520927561.6U patent/CN205275221U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105271308A (en) * | 2015-11-20 | 2016-01-27 | 湖南省湘衡盐化有限责任公司 | Vapor recovery method and device for salt and sodium sulfate co-production |
CN114516646A (en) * | 2022-03-19 | 2022-05-20 | 四川西秦盐化科技有限公司 | Efficient and energy-saving salt and nitrate co-production process |
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