CN205447696U - High low -temperature waste water waste heat cascade utilization and resource recycling system - Google Patents

High low -temperature waste water waste heat cascade utilization and resource recycling system Download PDF

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Publication number
CN205447696U
CN205447696U CN201521110491.1U CN201521110491U CN205447696U CN 205447696 U CN205447696 U CN 205447696U CN 201521110491 U CN201521110491 U CN 201521110491U CN 205447696 U CN205447696 U CN 205447696U
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low
temperature
steam
outlet
pressure flash
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李清方
王辉
张建
庞会中
于惠娟
文海力
张新军
黄少伟
张启阳
刘海丽
杨元亮
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Sinopec Jianghan Petroleum Engineering Design Co Ltd
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Sinopec Energy and Environmental Engineering Co Ltd
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Abstract

The utility model discloses a high low -temperature waste water waste heat cascade utilization and resource recycling system and method, this system includes: high, medium and low pressure flash tank, steam ejector in and, cryogenic heat exchanger. The utility model discloses an among the high low -temperature waste water waste heat cascade utilization and resource recycling system, it produces the height that the grade is different to vaporize the sewage of different temperatures through the high -low pressure flash tank, low temperature steam, the ejector is with the height, low temperature steam mix produces medium temperature steam, utilize the middling pressure flash tank to carry out the secondary flash distillation and produce medium temperature steam the high pressure flash bottom water, through the warm user's heat supply in to of medium temperature heater behind two gangs of medium temperature steam mix, high saliniferous middling pressure flash distillation bottom water is then through the low temperature heating ware to low warm user's heat supply, in, remaining comdenstion water is as fresh water product retrieval and utilization boiler low temperature steam releases latent heat in the heat exchanger after, and through fully retrieving the sewage waste heat and realizing water resource recycling, the efficiency of use the ability is improved, clear water resource consumption has been practiced thrift.

Description

A kind of high/low temperature sewage remaining energy cascade utilization and resource reclaiming system
Technical field
This utility model relates to the waste heat recovery of thermal technology's industry and the sewage desalinating desalting field of chemical industry, and the residual heat integrative being related specifically to two kinds of different saline sewages of temperature utilizes and sewage recycling reuse.
Background technology
For most domestic thermal technology and chemical field, the industry such as such as oil-refining chemical, oil extraction, thermoelectric heating, food processing and textile printing is required for consuming the steam resource of a large amount of grade, with satisfied heating, the process requirements such as distills, strips and be dried.Meanwhile, the low-grade different sewage of substantial amounts of height, the sewer of such as dum boiler, the separator bottom water of direct current cooker, viscous crude extraction sewage, concentration sewage or dye transfer sewage etc. can be produced again in other links.These sewage, not only rich in substantial amounts of heat resource, contain a large amount of inorganic salt and harmful substance simultaneously, if being directly discharged in air or in ground and body of groundwater, not only causing thermal waste, the most also can produce serious environmental pollution.On the other hand, domestic a lot of cities and rural area are faced with the situation with life and irrigation water shortage of resources, therefore give industrial clear water resource and are also faced with awkward condition less and less.As a example by the Northwest's heavy oil development, on the one hand heavy oil block is located in arid-desert areas, and ground underground fresh-water resource is in short supply.Still further aspect, comprehends the substantial amounts of oil removing sewage of generation at viscous crude.Sewage heat energy resource is all recycled; carry out desalting recycle-water resource is to achieve many things at one stroke simultaneously; not only reduce discharge; preserve the ecological environment; reduce enterprise's degree of dependence to outside clear water resource, also achieve industry energy conservation consumption reduction simultaneously, meet Sustainable Development of Enterprises and create environmentally friendly, the task of top priority of resources saving enterprise.
For high-grade sewage, the method that industry uses at present includes power recovery and energy recovery, multistage flash evaporation electricity generation system is typically used for power recovery mode and drives feed pump, energy recovery mode is then high-temperature water to carry out step flash distillation generation secondary flash vapour replace low-pressure steam to carry out heat tracing and heating, after flash distillation, condensed water uses air-tight manner to reclaim, such scheme only has theoretical research, there is not yet case history.For low-grade sewage, shop, Daqing oil field hole multi-purpose station uses associated gas to be driving source, utilizes absorption heat pump to extract externally discharged waste water waste heat for heating crude oil, thus instead of reheat furnace system.Henan Oil Field then directly utilizes sewage remaining energy lifting heating and supplements the temperature of water.Liaohe Oil Field uses compression heat pump system to reclaim the waste heat of low-temperature sewage in order to heating in crude oil.Can be seen that its waste heat recovery is only the utilization of sub-thread waste water.For the heat demand such as heating crude oil, thermal de-aeration and heat tracing blending, carry out vacuum flashing according to high-temperature water to directly utilize, it is possible that energy level does not mates or with can be insufficient, if individually using low-temperature sewage heating in crude oil, then cannot directly utilize not because of grade.In order to realize ensureing while sewage remaining energy fully reclaims level-density parameter, set forth herein a kind of based on different pressures flash process with the residual neat recovering system of HEAT PUMP BASED ON EJECTING PRINCIPLE technique, while carrying out sewage remaining energy cascade utilization, realize the regeneration of freshwater resources.
Utility model content
Technical problem to be solved in the utility model is the deficiency existed for above-mentioned prior art and provides a kind of high/low temperature sewage remaining energy cascade utilization and resource reclaiming system and method thereof, realize high and low temperature sewage remaining energy by heat energy classified utilization fully to reclaim, and realize saline sewage desalination resource on this basis, and return heat user and be circulated utilization.
The technical scheme that this utility model is used by the problem that solution is set forth above is:
A kind of high/low temperature sewage remaining energy cascade utilization and resource reclaiming system, this system includes hp flash drum, medium pressure flash tank, low pressure flash chamber, steam ejector, mid temperature heat exchanger and cryogenic heat exchanger;Wherein, the steam (vapor) outlet of described hp flash drum is connected with the main steam inlet of steam ejector, and the bottom water outlet of hp flash drum is connected with medium pressure flash tank entrance;The steam (vapor) outlet of described low pressure flash chamber is connected with the ejecting port of steam ejector, and the bottom water outlet of low pressure flash chamber is connected with blow-off line;The outlet of described steam ejector, steam (vapor) outlet all thermal source inlet with middle temperature heater of medium pressure flash tank are connected, and the middle thermal source outlet of temperature heater is connected with the entrance of clean water recovery device;The bottom water outlet of medium pressure flash tank is connected with the thermal source inlet of low-temperature heater, and the thermal source outlet of low-temperature heater is connected with blow-off line.
By such scheme, the entrance of described hp flash drum is connected with high temperature sewage input channel by regulation valve, and the entrance of low pressure flash chamber is connected with low-temperature sewage input channel by regulation valve.
By such scheme, the low-temperature receiver entrance of described mid temperature heat exchanger is connected with the extraneous medium input channel needing heating, and the low-temperature receiver outlet of mid temperature heat exchanger is connected with the described extraneous medium output channel needing heating.Specifically, the low-temperature receiver entrance of described mid temperature heat exchanger is connected with the extraneous crude oil input channel needing heating, and the low-temperature receiver outlet of mid temperature heat exchanger is connected with the described extraneous crude oil output channel needing heating.It is to say, the extraneous medium (such as crude oil) needing heating flows through middle temperature heater and heats.
By such scheme, the low-temperature receiver entrance of described cryogenic heat exchanger is connected with the extraneous medium input channel needing heating, and the low-temperature receiver outlet of cryogenic heat exchanger is connected with the described extraneous medium output channel needing heating.Specifically, the low-temperature receiver entrance of described cryogenic heat exchanger is connected with the extraneous supplementary water inlet pipe road needing heating, and the low-temperature receiver outlet of cryogenic heat exchanger is connected with the described extraneous supplementary water delivery pipe road needing heating.It is to say, the extraneous medium (such as supplementary water) needing heating flows through low-temperature heater and heats.
By such scheme, the described extraneous supplementary water delivery pipe road needing heating is connected with the entrance of clean water recovery device.
By such scheme, the outlet of described clean water recovery device is connected with the water inlet of fired oilfield gas injection boiler.
By such scheme, the steam (vapor) outlet of described fired oilfield gas injection boiler is connected with the entrance of gas-liquid separator.
By such scheme, the entrance of described hp flash drum and being connected that the bottom water of vapour liquid separator exports.
A kind of high/low temperature sewage remaining energy cascade utilization and resource reuse method, comprise the steps:
1) high temperature sewage is passed through in hp flash drum and carries out flash distillation generation high pressure flash steam and high pressure flash bottom water, and it is main as driving steam that gained high pressure flash steam is passed through steam ejector;
2) carrying out flash distillation during low-temperature sewage is passed through low pressure flash chamber and obtain low pressure flash steam and low pressure flash bottom water, it is jetting steam caused that gained low pressure flash steam is passed through the main conduct of steam ejector, and low pressure flash bottom water discharges system by blowdown pipeline;
3) drive steam and by jetting steam caused steam ejector internal mix expand after formed medium temperature and medium pressure steam, medium pressure flash tank flash distillation receive described in high pressure flash bottom water and carry out flash distillation, obtain middle pressure flash-off steam and middle pressure flash distillation bottom water;
4) described medium temperature and medium pressure steam, medium pressure flash-off steam are all passed through in mid temperature heat exchanger and carry out heat exchange with recovery waste heat, are then collected in clean water recovery device;Medium pressure flash distillation bottom water is passed through in cryogenic heat exchanger and carries out heat exchange with recovery waste heat, then discharges.
By such scheme, the extraneous medium (such as crude oil) needing heating flows through middle temperature heater and carries out heat exchange with medium temperature and medium pressure steam, medium pressure flash-off steam;The extraneous medium (such as supplementary water) needing heating flows through low-temperature heater and carries out heat exchange with middle pressure flash distillation bottom water.
By such scheme, the extraneous makeup water stream needing heating carries out heat exchange through low-temperature heater and middle pressure flash distillation bottom water, and gained low temperature supplements water and reclaims, and can be stored in clean water recovery device.
By such scheme, the clear water that described clean water recovery device is collected can be as freshwater resources in fired oilfield gas injection boiler.
By such scheme, the temperature of described low-temperature sewage is 65-90 DEG C, and for the condensed oil sewage from field joint stations, salinity is usually 3000-50000g/L;Described high temperature sewage separates bottom water or the sewer of dum boiler from direct current cooker outlet vapour liquid separator, and temperature is more than 300 DEG C, and is saturation water, and usual salinity is more than 10000g/L;The make-up water source of uphole steam generator is actually made up of the condensed water of supplementary water and middle pressure flash-off steam, is also saliferous, and simply salinity is low, below salinity 7000g/L.
By such scheme, described hp flash drum operating pressure 0.8-1.2Mpa, high pressure flash steam and flash distillation water parameter are same;Medium pressure flash tank operating pressure 0.11-0.13Mpa, middle pressure flash-off steam and flash distillation water parameter are same;Low pressure flash chamber operating pressure 0.01-0.05Mpa, low pressure flash steam and flash distillation water parameter are same;The main steam inlet parameter of steam ejector corresponds to high pressure flash steam parameter, and ejecting port corresponds to low pressure flash steam parameter, and outlet is corresponding to middle pressure flash-off steam parameter;Medium temperature and medium pressure steam parameter is identical with middle pressure flash-off steam parameter.
Operation principle of the present utility model is: this described low pressure flash chamber receives low-temperature sewage, and is low pressure flash steam by this burst of low-temperature sewage flash distillation;This described hp flash drum receives high temperature sewage, and high temperature sewage carries out flash distillation generation high pressure flash steam;This described steam ejector main steam inlet end receives high pressure flash steam as driving steam, this described steam ejector ejecting port receives low pressure flash steam as jetting steam caused, inside injector this described, realized the adiabatic compression of low pressure flash steam by effects such as throttling, volume suction, mixing, diffusions, and form medium temperature and medium pressure steam;This described mid temperature heat exchanger is used for receiving medium temperature and medium pressure steam, and centering warm user (such as crude oil etc.) is heated;Medium pressure flash tank receives the flash distillation bottom water from hp flash drum, and high temperature flash distillation bottom water carries out pressing in flash distillation generation flash-off steam, and this strand of medium temperature and medium pressure steam is then passed directly to mid temperature heat exchanger centering warm user and heats;Medium temperature and medium pressure steam condenses out formation and purifies water after discharging latent heat in described mid temperature heat exchanger, this purification water can be as freshwater resources for boiler etc.;Described cryogenic heat exchanger then accepts the middle temperature flash distillation bottom water produced from medium pressure flash tank, for heating Low Temperature Thermal user (such as supplementary water etc.).It addition, high temperature sewage and low-temperature sewage are all saliferous, after flashing off steam and being condensed, less salt or salt-free desalination water are reformed into, it is achieved the desalting process of sewage.
Compared with prior art, the beneficial effects of the utility model are:
1, directly utilizing alone mode relative to high and low temperature sewage, energy mode of the present utility model is in hgher efficiency, and sewage productivity is higher, good economy performance, and blowdown is few;2, relative to absorption type heat pump system, native system small scale, flow process is simple, invests lower, and economic benefit is more considerable;3, relative direct combustion type heat pump, native system is without using external utilities.4, desalinating desalting fully reclaim sewage remaining energy realize resource regeneration, improves energy consumption efficiency, has saved clear water resource consumption.
Accompanying drawing explanation
Fig. 1 is a kind of high/low temperature sewage remaining energy cascade utilization of the present utility model and resource reclaiming system principle schematic diagram.
Fig. 2 is the high/low temperature sewage remaining energy cascade utilization in embodiment and resource reclaiming system schematic diagram.
Wherein, 1-hp flash drum, 2-medium pressure flash tank, 3-low pressure flash chamber, 4-steam ejector, 5-mid temperature heat exchanger, 6-cryogenic heat exchanger, 7-clean water recovery device, 8-blow-off line, 9-injection boiler, 10 steam-water separators.
Detailed description of the invention
In order to be more fully understood that this utility model, it is further elucidated with content of the present utility model below in conjunction with embodiment and accompanying drawing, but this utility model is not limited solely to the following examples.
Embodiment
A kind of high/low temperature sewage remaining energy cascade utilization and resource reclaiming system, as in figure 2 it is shown, include hp flash drum 1, medium pressure flash tank 2, low pressure flash chamber 3, steam ejector 4, mid temperature heat exchanger 5, cryogenic heat exchanger 6, clean water recovery device (feed pump) 7, blow-off line 8, injection boiler 9, steam-water separator 10;
Wherein, the steam (vapor) outlet of described hp flash drum 1 is connected with the main steam inlet of steam ejector 4, and the bottom water outlet of hp flash drum 1 is connected with medium pressure flash tank 2 entrance;The steam (vapor) outlet of described low pressure flash chamber 3 is connected with the ejecting port of steam ejector 4, and the bottom water outlet of low pressure flash chamber 3 is connected with blow-off line 8;The outlet of described steam ejector 4, steam (vapor) outlet all thermal source inlet with middle temperature heater 5 of medium pressure flash tank 2 are connected, and the thermal source outlet of middle temperature heater 5 is connected with the entrance of clean water recovery device 7;The bottom water outlet of medium pressure flash tank 2 is connected with the thermal source inlet of low-temperature heater 6, and the thermal source outlet of low-temperature heater 6 is connected with blow-off line 8.
By such scheme, the entrance of described hp flash drum 1 is connected with high temperature sewage input channel by regulation valve, and the entrance of low pressure flash 3 tank is connected with low-temperature sewage input channel by regulation valve.
By such scheme, the low-temperature receiver entrance of described mid temperature heat exchanger 5 is connected with the extraneous medium input channel needing heating, and the low-temperature receiver outlet of mid temperature heat exchanger 5 is connected with the described extraneous medium output channel needing heating.Specifically, the low-temperature receiver entrance of described mid temperature heat exchanger 5 is connected with the extraneous crude oil input channel needing heating, and the low-temperature receiver outlet of mid temperature heat exchanger 5 is connected with the described extraneous crude oil output channel needing heating.It is to say, the extraneous medium (such as crude oil) needing heating flows through middle temperature heater 5 and heats.
By such scheme, the low-temperature receiver entrance of described cryogenic heat exchanger 6 is connected with the extraneous medium input channel needing heating, and the low-temperature receiver outlet of cryogenic heat exchanger 6 is connected with the described extraneous medium output channel needing heating.Specifically, the low-temperature receiver entrance of described cryogenic heat exchanger 6 is connected with the extraneous supplementary water inlet pipe road needing heating, and the low-temperature receiver outlet of cryogenic heat exchanger 6 is connected with the described extraneous supplementary water delivery pipe road needing heating.It is to say, the extraneous makeup water stream needing heating heats through low-temperature heater 6, the supplementary water delivery pipe road after heating is connected with the entrance of clean water recovery device 7.
By such scheme, the outlet of described clean water recovery device 7 is connected with the water inlet of fired oilfield gas injection boiler 9, the steam (vapor) outlet of described fired oilfield gas injection boiler 9 is connected with the entrance of gas-liquid separator 10, the entrance of described hp flash drum 1 and being connected that the bottom water of vapour liquid separator 10 exports.
A kind of high/low temperature sewage remaining energy cascade utilization and resource reuse method, comprise the steps:
1) the high pressure moist steam of the mass dryness fraction about 75% that fired oilfield gas injection boiler 9 produces carries out gas-liquid separator through vapour liquid separator 10, and isolated dry saturated steam is directly used in well site steam injection, and remaining separating at high temperature bottom water saliferous is higher, is discharged by bottom vapour liquid separator 9;Hp flash drum 1 accepts the separating at high temperature bottom water (i.e. high temperature sewage) from gas-liquid separator 9, and carries out high pressure flash in inside, and the high steam flashed off is directly entered steam ejector 4 as driving steam;
2) low pressure flash chamber 3 receives the condensed oil sewage (i.e. low-temperature sewage) from field joint stations, and low pressure flash is carried out in inside, the low-pressure steam flashed off enters the ejecting port of steam ejector 4 as jetting steam caused by Involving velocity, the outlet at bottom medium of low pressure flash chamber 3 is low pressure flash bottom water, because its temperature is low, saliferous height can not re-use, and directly discharges system by blowdown pipeline 8;
3) drive steam and after steam ejector 4 internal mix expands, formed medium temperature and medium pressure steam by jetting steam caused, medium pressure flash tank 2 receives the high pressure flash bottom water from hp flash drum 1, and in inside is carried out, press flash distillation, obtain middle pressure flash-off steam and middle pressure flash distillation bottom water;
4) described medium temperature and medium pressure steam, medium pressure flash-off steam are all passed through in mid temperature heat exchanger 5 for heating crude oil, meanwhile medium temperature and medium pressure steam, medium pressure flash-off steam are converted into condensation return water, it is collected in clean water recovery device 7, can be as the water source of boiler feedwater;Middle pressure flash distillation bottom water (sewage) of medium pressure flash tank 2 outlet at bottom also has certain temperature, pressing flash distillation bottom water to be directly entered cryogenic heat exchanger 6 in this stock steam-injected boiler is supplemented water to heat, the middle pressure flash distillation bottom water after heat exchange being lowered the temperature the most again discharges system by blowdown pipeline 8.
In applying a specific embodiment of the present utility model, wherein low temperature condensed oil sewage temperature 90 DEG C, supplement coolant-temperature gage 20 DEG C, a steam injection station is had near multi-purpose station, having 2 48t/h injection boilers and supporting vapour liquid separator, steam-injected boiler outlet vapor pressure is 14.2MPa, and temperature is 337.8 DEG C;The moist steam of mass dryness fraction 75% produces the high temperature sewage of 12t/h saliferous after isolating dry saturated steam.UTILIZATION OF VESIDUAL HEAT IN technique is designed according to this utility model, low temperature condensed oil sewage low pressure flash pressure takes 0.02MPa, driving steam pressure to take 1MPa (i.e. the pressure of high pressure flash steam), outlet pressure maintains 0.11MPa (pressure of middle pressure flash-off steam, the pressure of medium temperature and medium pressure flash-off steam).
Being about 120CNY/t in view of triumph western small towns steam price, Gas Prices press 2.11CNY/Nm3 and is calculated, and with throttled steam, waste water flash distillation and steam ejection heat pump is directly filled heat, compared with gas water jacket furnace heats two ways.Then steam directly fills hot operating cost is 0.2CNY/kWh, and gas water jacket furnace heating operating cost is 0.264CNY/kWh, and steam ejection heat pump is used is residual heat resources, disregards operating cost.It should be noted that macroscopically say that waste water flash distillation is not only embodied in heat pump united system to save the energy-saving and emission-reduction that fuel causes, it is also manifested in the energy-saving and cost-reducing income that clear water processed is brought simultaneously.For system described in the utility model reclaims latent heat, mixed vapour (medium temperature and medium pressure steam) heating capacity that separating at high temperature bottom water flash distillation per ton injection go out reaches 324kWh, middle pressure flash steam after high pressure flash bottom water flash distillation reclaims heating capacity and reaches 57kWh, system amounts to heating capacity and reaches 381kWh, can save and directly mix steam 0.61t, save steam and take 72.9CNY;Remaining steam condensate (SC) reuse boiler after heating, saving than room temperature supply clear water and add heat 56kWh, it is 41kWh that middle pressure flash distillation bottom water heating clear water reclaims sensible heat amount, and system reclaims sensible heat and amounts to 97kWh, then saving coal-fired expense is 7.5CNY, and energy-conservation expense amounts to 80.4CNY.On the other hand, system described in the utility model can realize waste water fresh water simultaneously, replaces supply clear water fee to develop 2.2CNY/m3, waste water injection takes 5.9CNY/m3, separating at high temperature bottom water the most per ton is saved water processing cost and is amounted to 4.9CNY.Synthesis energy saving water-saving benefit understands separating at high temperature bottom water per ton and saves fund 85.3CNY/t, and economic benefit is clearly.
The above is only preferred implementation of the present utility model; it should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise of the invention; can also make some modifications and variations, these broadly fall into protection domain of the present utility model.

Claims (6)

1. a high/low temperature sewage remaining energy cascade utilization and resource reclaiming system, it is characterised in that include hp flash drum, medium pressure flash tank, low pressure flash chamber, steam ejector, mid temperature heat exchanger and cryogenic heat exchanger;Wherein, the steam (vapor) outlet of described hp flash drum is connected with the main steam inlet of steam ejector, and the bottom water outlet of hp flash drum is connected with medium pressure flash tank entrance;The steam (vapor) outlet of described low pressure flash chamber is connected with the ejecting port of steam ejector, and the bottom water outlet of low pressure flash chamber is connected with blow-off line;The outlet of described steam ejector, steam (vapor) outlet all thermal source inlet with middle temperature heater of medium pressure flash tank are connected, and the middle thermal source outlet of temperature heater is connected with the entrance of clean water recovery device;The bottom water outlet of medium pressure flash tank is connected with the thermal source inlet of low-temperature heater, and the thermal source outlet of low-temperature heater is connected with blow-off line.
A kind of high/low temperature sewage remaining energy cascade utilization the most according to claim 1 and resource reclaiming system, it is characterized in that the entrance of described hp flash drum is connected with high temperature sewage input channel by regulation valve, the entrance of low pressure flash chamber is connected with low-temperature sewage input channel by regulation valve.
A kind of high/low temperature sewage remaining energy cascade utilization the most according to claim 1 and resource reclaiming system, it is characterized in that the low-temperature receiver entrance of described mid temperature heat exchanger is connected with the extraneous crude oil input channel needing heating, the low-temperature receiver outlet of mid temperature heat exchanger is connected with the described extraneous crude oil output channel needing heating;The low-temperature receiver entrance of described cryogenic heat exchanger is connected with the extraneous supplementary water inlet pipe road needing heating, and the low-temperature receiver outlet of cryogenic heat exchanger is connected with the described extraneous supplementary water delivery pipe road needing heating.
A kind of high/low temperature sewage remaining energy cascade utilization the most according to claim 3 and resource reclaiming system, it is characterised in that the described extraneous supplementary water delivery pipe road needing heating is connected with the entrance of clean water recovery device.
A kind of high/low temperature sewage remaining energy cascade utilization the most according to claim 1 and resource reclaiming system, it is characterised in that the outlet of described clean water recovery device is connected with the water inlet of fired oilfield gas injection boiler.
A kind of high/low temperature sewage remaining energy cascade utilization the most according to claim 5 and resource reclaiming system, it is characterized in that the steam (vapor) outlet of described fired oilfield gas injection boiler is connected with the entrance of gas-liquid separator, the entrance of described hp flash drum and being connected that the bottom water of vapour liquid separator exports.
CN201521110491.1U 2015-12-25 2015-12-25 High low -temperature waste water waste heat cascade utilization and resource recycling system Active CN205447696U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105423266A (en) * 2015-12-25 2016-03-23 中石化节能环保工程科技有限公司 High and low-temperature sewage waste heat cascade utilization and resource recycling system and method thereof
CN108800086A (en) * 2018-06-11 2018-11-13 西安交通大学 A kind of energy-saving high-pressure steam generator of circular flow
CN109333694A (en) * 2018-11-26 2019-02-15 龙岩市锐美家装饰材料有限公司 A kind of the waste heat circulation system and automatic cycle method of speed veneering hot press

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105423266A (en) * 2015-12-25 2016-03-23 中石化节能环保工程科技有限公司 High and low-temperature sewage waste heat cascade utilization and resource recycling system and method thereof
CN108800086A (en) * 2018-06-11 2018-11-13 西安交通大学 A kind of energy-saving high-pressure steam generator of circular flow
CN108800086B (en) * 2018-06-11 2019-08-23 西安交通大学 A kind of energy-saving high-pressure steam generator of circular flow
CN109333694A (en) * 2018-11-26 2019-02-15 龙岩市锐美家装饰材料有限公司 A kind of the waste heat circulation system and automatic cycle method of speed veneering hot press

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Address after: No.38-2, Tangxun Hubei Road, Donghu New Technology Development Zone, Wuhan, Hubei 430223

Patentee after: SINOPEC PETROLEUM ENGINEERING JIANGHAN Corp.

Address before: No.38-2, Tangxun Hubei Road, Donghu New Technology Development Zone, Wuhan, Hubei 430223

Patentee before: SINOPEC ENERGY CONSERVATION AND ENVIRONMENTAL PROTECTION ENGINEERING TECHNOLOGY Co.,Ltd.