CN107583300B - A kind of hypergravity MVR heat pump rectification system - Google Patents
A kind of hypergravity MVR heat pump rectification system Download PDFInfo
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- CN107583300B CN107583300B CN201710959447.5A CN201710959447A CN107583300B CN 107583300 B CN107583300 B CN 107583300B CN 201710959447 A CN201710959447 A CN 201710959447A CN 107583300 B CN107583300 B CN 107583300B
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Abstract
The present invention relates to technical field of rectification more particularly to a kind of hypergravity MVR heat pump rectification systems.The system includes hypergravity rectifier, vapour compression machine, gas-liquid separator, reboiler, saturator, finished product temporary storage tank, the first preheater, the second preheater, finished product storage tank and kettle liquid storage tank, the hypergravity rectifier connects the vapour compression machine, the vapour compression machine connects the saturator, the saturator connects the reboiler, the reboiler connects the finished product temporary storage tank, the finished product temporary storage tank connects first preheater, and first preheater is separately connected the hypergravity rectifier and the finished product storage tank.The system structure is simple, and rationally, MVR heat pump distillation technology and hypergravity distillation technology are combined for design, hypergravity rectifier overhead vapours latent heat is made full use of, gas-liquid heat-transfer efficiency is effectively improved, reaches reduction energy consumption, operating cost is saved, the purpose of occupied area is improved efficiency and reduce.
Description
Technical field
The present invention relates to technical field of rectification more particularly to a kind of hypergravity MVR heat pump rectification systems.
Background technique
Thermal energy consumption is accounting example the best part in energy consumption, and the temperature of most thermal energy consumptions is equal in actual industrial
Lower than 100 DEG C.Rectifying is the major part of thermal energy consumption, and due to the rising of energy prices, the advantage of traditional rectifying also becomes to get over
Come more unobvious.And it is common reduce reflux ratio, change column plate and the power-economizing methods such as filler and raw material preheating by
Various limitations.
Heat pump distillation principle is directly to compress rectifying tower top steam, obtains the overhead vapours of high-temperature and pressure, as
The heat source of tower bottom of rectifying tower reboiler or intermediate reboiler, makes full use of the condensation latent heat of overhead gas, while reducing high pressure
The use of steam and cooling water.Reverse transfer of the matter energy from low temperature to high temperature may be implemented in heat pump, is extremely effective section
It can method.
However existing heat pump rectification system, there are energy consumption height, operating cost is high, takes up a large area and asks with complicated
Topic.
Summary of the invention
(1) technical problems to be solved
The object of the present invention is to provide a kind of hypergravity MVR heat pump rectification systems, solve existing heat pump rectification system and deposit
In energy consumption height, operating cost is high, takes up a large area and the problem of structure is complicated.
(2) technical solution
In order to solve the above-mentioned technical problems, the present invention provides a kind of hypergravity MVR heat pump rectification systems, including hypergravity
Rectifier, vapour compression machine, gas-liquid separator, reboiler, saturator, finished product temporary storage tank, the first preheater, the second preheater,
Finished product storage tank and kettle liquid storage tank；
Wherein, the top exit of the hypergravity rectifier connects the entrance of the vapour compression machine, the both vapor compression
The outlet of machine connects the gas phase entrance of the saturator, and the hot logistics that the gas vent of the saturator connects the reboiler enters
Mouthful, the hot stream outlet of the reboiler connects the entrance of the finished product temporary storage tank, and the outlet of the finished product temporary storage tank connects institute
The first preheater hot stream inlet is stated, the first preheater hot stream outlet is separately connected the first branch line and the second branch
Pipeline, wherein first branch line connects the hypergravity rectifier refluxing opening, described in the second branched pipe road connection
Finished product storage tank；
The overhead vapor outlet of the gas-liquid separator connects the steam inlet of the hypergravity rectifier, the hypergravity
The liquid-phase outlet of rectifier connects the liquor inlet of the gas-liquid separator；The bottom liquid phases of the gas-liquid separator export difference
Third branch line and the 4th branch line are connected, wherein the third branch line connects the hot logistics of second preheater
The hot stream outlet of import, second preheater connects the kettle liquid storage tank；The 4th branch line connection is described to boil again
The cold stream inlet of device, the cold stream outlet of the reboiler connect the liquor inlet of the gas-liquid separator.
It further, further include feed pipe, the material inlet of the feed pipe connection feed storage tank, the feed storage tank
Material outlet connects the cold material entrance of first preheater, the cold material outlet connection described second of first preheater
The cold material outlet of the cold material entrance of preheater, second preheater is separately connected quintafurcation pipeline and the 6th branched pipe
Road, wherein the feed inlet of hypergravity rectifier described in the quintafurcation piping connection, described in the 6th branch line connection
The top feed mouth of gas-liquid separator.
Specifically, the first feed pump and inlet valve are respectively equipped on the feed pipe；The feed storage tank with it is described
The second feed pump, feed rate electric control valve and feed flow meter are respectively equipped on connecting line between first preheater；
It is equipped with first throttle valve on the quintafurcation pipeline, second throttle is equipped on the 6th branch line.
Specifically, the hot stream inlet of the top gas phase outlet connection condenser of the finished product temporary storage tank, the condenser
Hot stream outlet connect the feed storage tank.
Specifically, the condenser cold stream inlet connection condensation water storage tank, wherein the condenser with it is described cold
Connecting line between condensate storage tank is equipped with condensate pump, and the cold stream outlet of the condenser connects drip pipe,
The import of the condensation water storage tank connects normal temperature water inlet pipe.
Further, the outlet of the finished product temporary storage tank is separately connected the 7th branch line and the 8th by the first main line
Branch line, wherein the 7th branch line connects the first preheater hot stream inlet；8th branch line connects
The liquid phase entrance of the saturator is connect, the bottom liquid phases outlet of the saturator connects the liquid phase entrance of the finished product temporary storage tank；
First main line equipped with unloading pump, the 7th branch line be equipped with third throttle valve, the described 8th
Branch line is equipped with saturator liquid injection valve.
Further, the bottom liquid phases outlet of the gas-liquid separator is separately connected the third point by the second main line
Bye-pass and the 4th branch line, wherein circulating pump is equipped on second main line, in the third branch line
On be respectively equipped with kettle liquid flowmeter and the 4th throttle valve, on the 4th branch line be equipped with the 5th throttle valve.
Specifically, it is respectively equipped with return flow electric control valve and return flow meter on first branch line,
The second branched pipe road is respectively equipped with product flow electric control valve and product stream meter.
Specifically, it is electronic that kettle liquid flow is equipped on the connecting line between the kettle liquid storage tank and second preheater
Regulating valve is connected with kettle liquid delivery pipe in the bottom of the kettle liquid storage tank, and the kettle liquid delivery pipe is equipped with kettle liquid drain valve；
It is connected with product delivery pipe in the bottom of the finished product storage tank, the product delivery pipe is equipped with product drain valve；
Raw steam inlet duct and drip pipe are connected separately on the gas-liquid separator；
Visor is equipped on the connecting line of the hypergravity rectifier liquid-phase outlet.
Specifically, first preheater and second preheater are all made of plate type preheater；
The vapour compression machine uses single screw compressor or centrifugal compressor.
(3) beneficial effect
Above-mentioned technical proposal of the invention has the advantages that
Hypergravity MVR heat pump rectification system of the present invention, by be arranged hypergravity rectifier, Pistonless compressor, then
Device and gas-liquid separator are boiled, MVR heat pump distillation technology and hypergravity distillation technology are combined, hypergravity rectifier is made full use of
Overhead vapours latent heat effectively improves gas-liquid heat-transfer efficiency, reaches reduction energy consumption, saves operating cost, improves efficiency and reduction accounts for
The purpose of ground area.
Hypergravity MVR heat pump rectification system of the present invention, structure is simple, and design rationally, remains original rectifying system
The advantage of system is not necessarily to boiler, without raw steam, obtains high concentration by the combination of MVR heat pump techniques and hypergravity distillation technology
Product, reduce energy consumption, save operating cost, while further improving the energy saving economy of hypergravity MVR heat pump distillation technology
Type, conformability, reasonability and flexibility.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of hypergravity MVR heat pump rectification system of the embodiment of the present invention.
In figure: 1: hypergravity rectifier；2: Pistonless compressor；3: gas-liquid separator；4: reboiler；5: saturator；6: at
Product temporary storage tank；7: the first preheaters；8: the second preheaters；9: feed pipe；10: the first feed pumps；11: inlet valve；12: charging storage
Tank；13: the second feed pumps；14: feed rate electric control valve；15: feed flow meter；16: product flow electric control valve；
17: product stream meter；18: finished product storage tank；19: product drain valve；20: condenser；21: return flow electric control valve；22: returning
Flow flowmeter；23: kettle liquid flow control valve；24: kettle liquid storage tank；25: kettle liquid flowmeter；26: first throttle valve；27: the second sections
Flow valve；28: the four throttle valves；29: the five throttle valves；30: circulating pump；31: kettle liquid drain valve；32: condensate pump；33: third
Throttle valve；34: drip pipe；35: saturator liquid injection valve；36: unloading pump；37: condensation water storage tank；38: normal-temperature water water inlet
Pipe；39: raw steam inlet duct；40: drip pipe；41: visor.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1, the embodiment of the present invention provides a kind of hypergravity MVR heat pump rectification system, including hypergravity rectifier
1, vapour compression machine 2, gas-liquid separator 3, reboiler 4, saturator 5, finished product temporary storage tank 6, the first preheater 7, the second preheater
8, finished product storage tank 18 and kettle liquid storage tank 24.
Wherein, the entrance of the top exit connection vapour compression machine 2 of hypergravity rectifier 1, the outlet of vapour compression machine 2 connects
Connect the gas phase entrance of saturator 5, the hot stream inlet of the gas vent connection reboiler 4 of saturator 5, the hot logistics of reboiler 4
The entrance of outlet connection finished product temporary storage tank 6, the outlet of finished product temporary storage tank 6 connect the hot stream inlet of the first preheater 7, the first preheating
The hot stream outlet of device 7 is separately connected the first branch line and second branched pipe road, wherein the first branch line connection hypergravity essence
1 refluxing opening of machine is evaporated, second branched pipe road connects finished product storage tank 18.
Wherein, the steam inlet of the overhead vapor outlet connection hypergravity rectifier 1 of gas-liquid separator 3, hypergravity rectifying
The liquor inlet of the liquid-phase outlet connection gas-liquid separator 3 of machine 1.The bottom liquid phases outlet of gas-liquid separator 3 is separately connected third
Branch line and the 4th branch line, wherein third branch line connects the hot logistics import of the second preheater 8, the second preheater
8 hot stream outlet connects kettle liquid storage tank 24.4th branch line connects the cold stream inlet of reboiler 4, the cold object of reboiler 4
The liquor inlet of outflux connection gas-liquid separator 3.
Furthermore, it is understood that this system further includes feed pipe 9, feed pipe 9 connects the material inlet of feed storage tank 12, charging storage
The material outlet of tank 12 connects the cold material entrance of the first preheater 7, the second preheating of cold material outlet connection of the first preheater 7
The cold material outlet of the cold material entrance of device 8, the second preheater 8 is separately connected quintafurcation pipeline and the 6th branch line,
In quintafurcation piping connection hypergravity rectifier 1 feed inlet, the 6th branch line connect gas-liquid separator 3 top feed
Mouthful.
Wherein, the first feed pump 10 and inlet valve 11 are respectively equipped on feed pipe 9.It is preheated in feed storage tank 12 and first
The second feed pump 13, feed rate electric control valve 14 and feed flow meter 15 are respectively equipped on connecting line between device 7.
Wherein, it is equipped with first throttle valve 26 on quintafurcation pipeline, second throttle is equipped on the 6th branch line
27。
Furthermore, it is understood that this system further includes condenser 20, the top gas phase outlet connection condenser 20 of finished product temporary storage tank 6
Hot stream inlet, the hot stream outlet of condenser 20 connects feed storage tank 12.The cold stream inlet of condenser 20 connects condensation
Water storage tank 37.
Wherein, condensate pump 32 is equipped on the connecting line between condenser 20 and condensation water storage tank 37.
Wherein, the cold stream outlet of condenser 20 connects drip pipe 34.The import connection for condensing water storage tank 37 is normal
Warm water intake pipe 38.
Furthermore, it is understood that the outlet of finished product temporary storage tank 6 is separately connected the 7th branch line and the 8th by the first main line
Branch line, wherein the 7th branch line connects the hot stream inlet of the first preheater 7, the 8th branch line connects saturator 5
Liquid phase entrance, saturator 5 bottom liquid phases outlet connection finished product temporary storage tank 6 liquid phase entrance.
Wherein, it is equipped with unloading pump 36 on the first main line, third throttle valve 33 is equipped on the 7th branch line, the
Eight branch lines are equipped with saturator liquid injection valve 35.
Furthermore, it is understood that the bottom liquid phases of gas-liquid separator 3, which are exported, is separately connected third branched pipe by the second main line
Road and the 4th branch line.
Wherein, it is equipped with circulating pump 30 on the second main line, kettle liquid flowmeter 25 is respectively equipped on third branch line
With the 4th throttle valve 28, the 5th throttle valve 29 is equipped on the 4th branch line.
Wherein, return flow electric control valve 21 and return flow meter 22 are respectively equipped on the first branch line,
Product flow electric control valve 16 and product stream meter 17 are respectively equipped on two branch lines.
Specifically, kettle liquid flow electric adjustable is equipped on the connecting line between kettle liquid storage tank 24 and the second preheater 8
Save valve 23.
It is connected with kettle liquid delivery pipe in the bottom of kettle liquid storage tank 24, kettle liquid drain valve 31 is equipped on kettle liquid delivery pipe.
It is connected with product delivery pipe in the bottom of finished product storage tank 18, product drain valve 19 is equipped on product delivery pipe.
Raw steam inlet duct 39 and drip pipe 40 are connected separately on gas-liquid separator 3.
Visor 41 is equipped on the connecting line of 1 liquid-phase outlet of hypergravity rectifier.
In addition, the first preheater 7 and the second preheater 8 preferably use plate type preheater.
In addition, vapour compression machine 2 preferably uses single screw compressor or centrifugal compressor.
In addition, system of the present invention, can be used industrial personal computer and PLC constitutes the real time monitoring center of MVR series, pass through
Software programming, acquires the status signal of various sensors in real time, so that the revolving speed of motor is automatically controlled, the closing of valve and tune
Section, the flow velocity and flow of liquid, temperature, the control of pressure and adjusting etc. make system work reach the state of dynamic equilibrium.Together
When, system of the present invention also has the function of automatic alarm, automatically records parameter and provides report.
Hypergravity MVR heat pump rectification system described in the embodiment of the present invention, its working principles are as follows:
Material liquid is squeezed into feed storage tank 12 under the action of the first feed pump 10 by feed pipe 9, then feed storage tank
12 raw material, which is successively squeezed under the action of the second feed pump 13 in first preheater 7 and the second preheater 8, adds raw material
Heat.Raw material after heating, which enters, carries out rectifying in hypergravity rectifier 1, the high concentrations of gas after rectifying is by vapour compression machine 2
It is superheated steam that compression, which improves temperature, pressure and heat content, steam at this time, since there are heat transfer coefficients and production effect for superheated steam
The features such as rate is low, required heat transfer area is larger and equipment investment is big, and superheated steam is cooled to the heat that saturation temperature is discharged
Measure fairly small, therefore compressed superheated steam is first passed through in saturator 5 to be buffered with product solution and be saturated, and saturated vapor is passed through again
Heat source in reboiler 4 as tower reactor liquid, condensed tower top gas-liquid mixture, which enters, carries out gas-liquid point in finished product temporary storage tank 6
From wherein the gas after the separation of finished product temporary storage tank 6 is in condenser 20 by being passed through feed storage tank 12 after condensed water cooling
In.Liquid after the separation of finished product temporary storage tank 6 then squeeze by the 7th branch line under the action of unloading pump 36 by a part
Raw material is preheated in first preheater 7, liquid after cooling comes out rear a portion from the first preheater 7 and passes through first
Branch line flows back into hypergravity rectifier 1, and another part then passes through second branched pipe road and enters finished product storage tank 18.By at
Remainder is then flowed into saturation by the 8th branch line under the action of unloading pump 36 by the liquid after product temporary storage tank 6 separates
As the cold source for neutralizing superheated steam in device 5.And the tower bottoms of hypergravity rectifier 1 and the tower bottoms heated by reboiler 4
Gas-liquid mixture gas-liquid separation is carried out in gas-liquid separator 3, by gas-liquid separator 3 separation after gas phase be connected to it is super
Heat source of the steam inlet of gravity rectifier 1 as rectifying, the liquid phase after the separation of gas-liquid separator 3 are then divided into two parts,
Under the action of circulating pump 30, a portion is driven into the second preheater 8 by third branch line and exchanges heat, and another
It is a part of then be driven into reboiler 4 and exchange heat by the 4th branch line.
In conclusion hypergravity MVR heat pump rectification system described in the embodiment of the present invention, by the way that hypergravity rectifying is arranged
Machine, Pistonless compressor, reboiler and gas-liquid separator combine MVR heat pump distillation technology and hypergravity distillation technology, sufficiently
Using hypergravity rectifier overhead vapours latent heat, gas-liquid heat-transfer efficiency is effectively improved, reaches reduction energy consumption, saves operating cost,
Improve efficiency and reduce the purpose of occupied area.
Hypergravity MVR heat pump rectification system described in the embodiment of the present invention, structure is simple, and design rationally, remains original
The advantage of distillation system is not necessarily to boiler, without raw steam, is obtained by the combination of MVR heat pump techniques and hypergravity distillation technology
The product of high concentration reduces energy consumption, saves operating cost, while further improving the section of hypergravity MVR heat pump distillation technology
It can economical, conformability, reasonability and flexibility.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (6)
1. a kind of hypergravity MVR heat pump rectification system, it is characterised in that: including hypergravity rectifier (1), vapour compression machine (2),
Gas-liquid separator (3), reboiler (4), saturator (5), finished product temporary storage tank (6), the first preheater (7), the second preheater (8),
Finished product storage tank (18) and kettle liquid storage tank (24)；
Wherein, the top exit of the hypergravity rectifier (1) connects the entrance of the vapour compression machine (2), the vapour pressure
The outlet of contracting machine (2) connects the gas phase entrance of the saturator (5), and the gas vent connection of the saturator (5) is described to boil again
The hot stream inlet of device (4), the hot stream outlet of the reboiler (4) connect the entrance of the finished product temporary storage tank (6), it is described at
The outlet of product temporary storage tank (6) connects the hot stream inlet of first preheater (7), the hot stream outlet of first preheater (7)
It is separately connected the first branch line and second branched pipe road, wherein first branch line connects the hypergravity rectifier
(1) refluxing opening, the second branched pipe road connect the finished product storage tank (18)；
The overhead vapor outlet of the gas-liquid separator (3) connects the steam inlet of the hypergravity rectifier (1), described overweight
The liquid-phase outlet of power rectifier (1) connects the liquor inlet of the gas-liquid separator (3)；The bottom of the gas-liquid separator (3)
Liquid-phase outlet is separately connected third branch line and the 4th branch line, wherein third branch line connection described second is pre-
The hot stream outlet of the hot logistics import of hot device (8), second preheater (8) connects the kettle liquid storage tank (24)；Described
Four branch lines connect the cold stream inlet of the reboiler (4), and the cold stream outlet of the reboiler (4) connects the gas-liquid
The liquor inlet of separator (3)；
It further include feed pipe (9), the material inlet of feed pipe (9) connection feed storage tank (12), the feed storage tank (12)
Material outlet connect the cold material entrance of first preheater (7), the cold material of first preheater (7) exports connection
The cold material outlet of the cold material entrance of second preheater (8), second preheater (8) is separately connected quintafurcation pipe
Road and the 6th branch line, wherein the feed inlet of hypergravity rectifier (1) described in the quintafurcation piping connection, the described 6th
Branch line connects the top feed mouth of the gas-liquid separator (3)；
The first feed pump (10) and inlet valve (11) are respectively equipped on the feed pipe (9)；The feed storage tank (12) with
The second feed pump (13), feed rate electric control valve are respectively equipped on connecting line between first preheater (7)
(14) and feed flow meter (15)；First throttle valve (26) are equipped on the quintafurcation pipeline, in the 6th branched pipe
Road is equipped with second throttle (27)；
The bottom liquid phases of the gas-liquid separator (3), which are exported, is separately connected the third branch line and institute by the second main line
The 4th branch line is stated, wherein being equipped with circulating pump (30) on second main line, on the third branch line respectively
Equipped with kettle liquid flowmeter (25) and the 4th throttle valve (28), the 5th throttle valve (29) is equipped on the 4th branch line；
Kettle liquid flow motorized adjustment is equipped on connecting line between the kettle liquid storage tank (24) and second preheater (8)
Valve (23) is connected with kettle liquid delivery pipe in the bottom of the kettle liquid storage tank (24), and the kettle liquid delivery pipe is discharged equipped with kettle liquid
Valve (31)；
It is connected with product delivery pipe in the bottom of the finished product storage tank (18), the product delivery pipe is equipped with product drain valve
(19)；
Raw steam inlet duct (39) and drip pipe (40) are connected separately on the gas-liquid separator (3)；
Visor (41) are equipped on the connecting line of hypergravity rectifier (1) liquid-phase outlet.
2. hypergravity MVR heat pump rectification system according to claim 1, it is characterised in that: the finished product temporary storage tank (6)
The hot stream outlet of the hot stream inlet of top gas phase outlet connection condenser (20), the condenser (20) connects the charging
Storage tank (12).
3. hypergravity MVR heat pump rectification system according to claim 2, it is characterised in that: the condenser (20) it is cold
Stream inlet connection condensation water storage tank (37), wherein the connection between the condenser (20) and condensation water storage tank (37)
Pipeline is equipped with condensate pump (32), and the cold stream outlet of the condenser (20) connects drip pipe (34), described cold
The import of condensate storage tank (37) connects normal temperature water inlet pipe (38).
4. hypergravity MVR heat pump rectification system according to claim 1, it is characterised in that: the finished product temporary storage tank (6)
Outlet is separately connected the 7th branch line and the 8th branch line by the first main line, wherein the 7th branch line connects
The hot stream inlet of first preheater (7)；8th branch line connects the liquid phase entrance of the saturator (5), described
The bottom liquid phases outlet of saturator (5) connects the liquid phase entrance of the finished product temporary storage tank (6)；
First main line is equipped with unloading pump (36), and the 7th branch line is equipped with third throttle valve (33), described
8th branch line is equipped with saturator liquid injection valve (35).
5. hypergravity MVR heat pump rectification system according to claim 1, it is characterised in that: in first branch line
On be respectively equipped with return flow electric control valve (21) and return flow meter (22), be respectively equipped on the second branched pipe road
Product flow electric control valve (16) and product stream meter (17).
6. hypergravity MVR heat pump rectification system according to claim 1, it is characterised in that:
First preheater (7) and second preheater (8) are all made of plate type preheater；
The vapour compression machine (2) uses single screw compressor or centrifugal compressor.
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| CN201710959447.5A CN107583300B (en) | 2017-10-16 | 2017-10-16 | A kind of hypergravity MVR heat pump rectification system |
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