CN206847121U - A kind of system using two class heat pumps recovery urea waste heat - Google Patents
A kind of system using two class heat pumps recovery urea waste heat Download PDFInfo
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- CN206847121U CN206847121U CN201720534160.3U CN201720534160U CN206847121U CN 206847121 U CN206847121 U CN 206847121U CN 201720534160 U CN201720534160 U CN 201720534160U CN 206847121 U CN206847121 U CN 206847121U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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Abstract
It the utility model is related to a kind of system using two class heat pumps recovery urea waste heat.Currently there are no one kind can be effectively using the production high-temperature boiler moisturizing of urea production process waste heat, moreover it is possible to ensures the system of feed pump trouble free service.The utility model includes two class heat pumps, is characterized in：Also include urea technique used heat and enter pipeline, condensate discharge line, feed pump and steam boiler into pipeline, used heat discharge line, condensate, urea technique used heat is connected with two class evaporator with heat pump heat source imports and generator heat source import respectively into pipeline, two class evaporator with heat pump thermal source outlets are connected with used heat discharge line simultaneously with generator thermal source outlet, condensate is connected into pipeline with two class heat pump absorber water inlets, two class heat pump absorber delivery ports are connected by condensate discharge line with feedwater pump inlet, and feedwater pump discharge is connected with steam boiler water supplement port.Reliability of the present utility model is high, and good economy performance can be fully by Waste Heat Reuse into urea production process.
Description
Technical field
A kind of system using two class heat pumps recovery urea waste heat is the utility model is related to, is that one kind can be by low-quality energy
The system that source is converted into the high-quality energy, belongs to technical field of waste heat utilization.
Background technology
The method that urea production uses is more, such as carbon dioxide stripping process, water solution total cycling method etc., but no matter produces
How technique changes, and system be unable to do without the steam using a large amount of all kinds of qualities, for example the steam turbine that driving compressor rotates is used
Vapour, hydrolysis tower vapour, vapor preheater vapour etc., thereby produce substantial amounts of condensate, and these condensing water temperatures are up to 90
DEG C, generally no longer heated, but directly return to steam boiler and used as moisturizing.
A large amount of 95 DEG C or so of interior recirculated cooling water can be produced in urea production process, utilizes this part waste heat driven bromination
The technological means of lithium refrigeration machine production chilled water utilizes this partial heat production higher quality in part factory application
Hot water, then apply to the method for urea production process and yet there are no introduction.
Second class absorption heat pump is otherwise known as warming heat pump, is that one kind can produce height using medium temperature waste heat and low-temperature heat source
The absorption heat pump of quality heat, the quality of waste heat can be lifted.Unit is by the absorption exothermic process in absorber, in heating
Warm water, become less than 150 DEG C of high-temperature-hot-water or steam.
It using pressure differential is motive force that reverse-osmosis treated technology, which is, and the UF membrane operation of solvent is isolated from solution.This
The aquifer yield of kind equipment is raised and risen with temperature, but otherwise temperature can damage film no more than 40 DEG C, suitable water temperature processed
Degree is at 25 DEG C or so.
Boiler feed pump has requirement to operating temperature, when feed temperature is too high, can influence water pump trouble free service,
Therefore the supply water temperature of feed pump is controlled, meets the requirement of system trouble free service.
It is reasonable in design to currently there are no one kind, it is easy to use, effectively it can be produced using urea production process waste heat
High-temperature boiler moisturizing, moreover it is possible to ensure the system of feed pump trouble free service.
Utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and provides a kind of by low-temperature waste heat
The high-quality energy is converted into, ensures system safe handling, the class heat pump of the utilization two recovery urea waste heat of lifting system economic benefit
System.The utility model first is both avoided thermal pollution, saved again using the used heat production high-temperature boiler feedwater of urea technique
Boiler oil, improves systematic economy benefit；Second eliminates the cooling system of script, has saved the first throwing of this part facility
Money and operation and maintenance cost；3rd can stablize feed temperature, ensure feed pump trouble free service；4th softening water treatment facilities is complete
The operation and maintenance cost of equipment with high efficiency water, can be reduced every year.It is of the present utility model to utilize two class heat pumps recovery urea
The system of waste heat, reliability is high, and good economy performance can be fully by Waste Heat Reuse into urea production process.
The technical scheme in the invention for solving the above technical problem is：This utilizes two class heat pumps recovery urea waste heat
System includes two class heat pumps, and its design feature is：Also include urea technique used heat and enter pipeline, used heat discharge line, condensate
Into pipeline, condensate discharge line, temperature measuring equipment, feed pump, steam boiler, cooling water inlet pipe road, cooling water water outlet
Pipeline, temperature adjustment water compensating valve, moisturizing processing unit and moisturizing discharge line, the urea technique used heat enter pipeline respectively with two classes
The evaporimeter thermal source import of heat pump connects with generator heat source import, the evaporimeter thermal source outlet of the two classes heat pump and generator
Thermal source outlet is connected with used heat discharge line simultaneously, and the condensate is connected into pipeline with the absorber water inlet of two class heat pumps,
The absorber delivery port of the two classes heat pump is connected by the import of condensate discharge line and feed pump, the temperature measuring equipment
It is connected on condensate discharge line, the outlet of the feed pump and the water supplement port of steam boiler connect；The cooling water inlet pipe
Road is connected with the condenser water inlet of two class heat pumps, and leaving condenser water mouth and the cooling water outlet pipe road of the two classes heat pump connect
Connect, the import of the temperature adjustment water compensating valve is connected by pipeline with cooling water outlet pipe road, the outlet of the temperature adjustment water compensating valve and benefit
The import connection of water treatment facilities, the outlet of the moisturizing processing unit are connected by the import of moisturizing discharge line and feed pump
Connect.
Preferably, temperature adjustment water compensating valve described in the utility model is autocontrol valve, temperature measuring equipment can be received
Data are simultaneously acted accordingly.
Preferably, moisturizing processing unit described in the utility model is reverse osmosis membrane processing device.
The utility model compared with prior art, has advantages below and effect：（1）Produced using the used heat of urea technique
High-temperature boiler feeds water, and both avoids thermal pollution, saves boiler oil again, improves systematic economy benefit；（2）Eliminate originally
Cooling system, saved the initial cost and operation and maintenance cost of this part facility；（3）Feed temperature can be stablized, ensure to
Water pump trouble free service；（4）Softening water treatment facilities whole year with high efficiency water, can reduce the operation and maintenance cost of equipment；
（5）Reasonable in design, design is unique, operates steadily, good reliability.
Brief description of the drawings
Fig. 1 is the structural representation of the system using two class heat pumps recovery urea waste heat in the utility model embodiment.
In figure：1st, urea technique used heat enters pipeline；2nd, two class heat pump；3rd, used heat discharge line；4th, condensate enters pipeline；
5th, condensate discharge line；6th, temperature measuring equipment；7th, feed pump；8th, steam boiler；9th, cooling water inlet pipe road；10th, cooling water
Outlet conduit；11st, temperature adjustment water compensating valve；12nd, moisturizing processing unit；13rd, moisturizing discharge line.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by embodiment, and following examples are pair
It is of the present utility model explanation and the utility model is not limited to following examples.
Embodiment.
Referring to Fig. 1, entered in the present embodiment using the system of two class heat pumps recovery urea waste heat including urea technique used heat
Pipeline 1, two class heat pumps 2, used heat discharge line 3, condensate enter pipeline 4, condensate discharge line 5, temperature measuring equipment 6, feedwater
Pump 7, steam boiler 8, cooling water inlet pipe road 9, cooling water outlet pipe road 10, temperature adjustment water compensating valve 11, the and of moisturizing processing unit 12
Moisturizing discharge line 13.Wherein, temperature adjustment water compensating valve 11 can be autocontrol valve, and moisturizing processing unit 12 can be counter-infiltration
Membrane treatment appts.
Urea technique used heat enters the evaporimeter thermal source import and generation with two class heat pumps 2 respectively of pipeline 1 in the present embodiment
Device heat source import connects, and the evaporimeter thermal source outlet of two class heat pumps 2 connects with used heat discharge line 3 simultaneously with generator thermal source outlet
Connect, condensate is connected into pipeline 4 with the absorber water inlet of two class heat pumps 2, and the absorber delivery port of two class heat pumps 2 passes through condensate
Discharge line 5 is connected with the import of feed pump 7, and temperature measuring equipment 6 is connected on condensate discharge line 5, the outlet of feed pump 7
It is connected with the water supplement port of steam boiler 8.
Cooling water inlet pipe road 9 is connected with the condenser water inlet of two class heat pumps 2 in the present embodiment, two class heat pumps 2 it is cold
Condenser delivery port is connected with cooling water outlet pipe road 10, and the import of temperature adjustment water compensating valve 11 passes through pipeline and cooling water outlet pipe road 10
Connection, i.e., be connected to the import of temperature adjustment water compensating valve 11 by cooling water outlet pipe road 10, outlet and the moisturizing of temperature adjustment water compensating valve 11 are handled
The import connection of device 12, the outlet of moisturizing processing unit 12 is connected by moisturizing discharge line 13 with the import of feed pump 7.
Included in the present embodiment using the system of two class heat pumps recovery urea waste heat with lower channel：Medium temperature spent hot water enters two
Evaporator and generator in class heat pump 2, thereafter let out to form waste heat driven heat source passages；Condensate absorbs into two class heat pumps 2
Discharged after device, then enter steam boiler 8 after feed pump 7 and form feedwater heating passage；Cooling water condenses into two class heat pumps 2
Discharge forms cooling-water duct after device；Cooling water enters moisturizing processing unit 12 by temperature adjustment water compensating valve 11, thereafter lets out to be formed
Moisturizing passage.
The operating procedure of the system of the class heat pump of utilization two recovery urea waste heat in the present embodiment is as follows.
（1）During system starts, urea technique link provides medium temperature spent hot water and enters two class heat pumps 2, and waste water exists respectively
Evaporator and the generator acting of two class heat pumps 2, then return to urine hydraulic art link by used heat discharge line 3, and condensate enters two
Absorber in class heat pump 2 absorbs heat heating, is then sent into steam boiler 8 by feed pump 7, and height is provided for steam boiler 8
Quality moisturizing, the condenser that cooling water enters in two class heat pumps 2 are discharged after absorbing heat, reach the purpose of two class heat pumps 2 of cooling,
Now temperature adjustment water compensating valve 11 is closed.
（2）When the water of high temperature moisturizing can not meet boiler demand, temperature adjustment water compensating valve 11 is opened, cooling water bypass enters
Moisturizing processing unit 12 is handled, and is then imported moisturizing pipeline and is carried out moisturizing to steam boiler 8, moisturizing processing unit 12 is complete
Year is in high efficiency operating condition.
（3）The load of two class heat pumps 2 can change, and now the condensate outlet temperature of two class heat pumps 2 may be too high, temperature
Degree measurement apparatus 6 sends instruction, controlling opening of valve to temperature adjustment water compensating valve 11 rapidly after measuring this data, until water temperature stability exists
Within safe temperature, the trouble free service of feed pump 7 is ensured.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, it is named
Title etc. can be different, and the above content described in this specification is only to the utility model structure example explanation.
The equivalence changes or simple change that all construction, feature and the principle described according to the utility model patent design are done, are wrapped
Include in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can be to described
Specific embodiment is made various modifications or supplement or substituted using similar mode, without departing from knot of the present utility model
Structure surmounts scope defined in the claims, all should belong to the scope of protection of the utility model.
Claims (3)
1. a kind of system using two class heat pumps recovery urea waste heat, including two class heat pumps, it is characterised in that：Also include urea work
Skill used heat enters pipeline, used heat discharge line, condensate and enters pipeline, condensate discharge line, temperature measuring equipment, feed pump, steaming
Boiler furnace, cooling water inlet pipe road, cooling water outlet pipe road, temperature adjustment water compensating valve, moisturizing processing unit and moisturizing discharge line, institute
Stating urea technique used heat, the evaporimeter thermal source import with two class heat pumps and generator heat source import are connected respectively into pipeline, described
The evaporimeter thermal source outlet of two class heat pumps is connected with used heat discharge line simultaneously with generator thermal source outlet, and the condensate enters pipe
Road is connected with the absorber water inlet of two class heat pumps, and the absorber delivery port of the two classes heat pump is by condensate discharge line with giving
The import connection of water pump, the temperature measuring equipment are connected on condensate discharge line, the outlet of the feed pump and steam copper
The water supplement port connection of stove；The cooling water inlet pipe road is connected with the condenser water inlet of two class heat pumps, the two classes heat pump
Leaving condenser water mouth is connected with cooling water outlet pipe road, and the import of the temperature adjustment water compensating valve passes through pipeline and cooling water outlet pipe road
Connection, the outlet of the temperature adjustment water compensating valve are connected with the import of moisturizing processing unit, and the outlet of the moisturizing processing unit passes through
The import connection of moisturizing discharge line and feed pump.
2. the system according to claim 1 using two class heat pumps recovery urea waste heat, it is characterised in that：The temperature adjustment is mended
Water valve is autocontrol valve.
3. the system according to claim 1 using two class heat pumps recovery urea waste heat, it is characterised in that：At the moisturizing
Reason device is reverse osmosis membrane processing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720534160.3U CN206847121U (en) | 2017-05-15 | 2017-05-15 | A kind of system using two class heat pumps recovery urea waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720534160.3U CN206847121U (en) | 2017-05-15 | 2017-05-15 | A kind of system using two class heat pumps recovery urea waste heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206847121U true CN206847121U (en) | 2018-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201720534160.3U Active CN206847121U (en) | 2017-05-15 | 2017-05-15 | A kind of system using two class heat pumps recovery urea waste heat |
Country Status (1)
| Country | Link |
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| CN (1) | CN206847121U (en) |
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2017
- 2017-05-15 CN CN201720534160.3U patent/CN206847121U/en active Active
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