CN109292875A - A kind of solution condensing device and its implementation based on steam cascade utilization - Google Patents
A kind of solution condensing device and its implementation based on steam cascade utilization Download PDFInfo
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- CN109292875A CN109292875A CN201811349525.0A CN201811349525A CN109292875A CN 109292875 A CN109292875 A CN 109292875A CN 201811349525 A CN201811349525 A CN 201811349525A CN 109292875 A CN109292875 A CN 109292875A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
Abstract
The invention discloses a kind of solution condensing device and its implementation based on steam cascade utilization, the device includes multiple concentration tanks, concentration tank is associated with vacuum pump altogether, and concentration tank connects in such a way that the leakage fluid dram of previous concentration tank connects the inlet of the latter concentration tank；The inlet for coming first concentration tank is connected with the first water pump；Heating device is equipped in the concentration tank, heat-exchange tube is equipped in concentration tank after the concentration tank, the air inlet of heat-exchange tube connects the steam (vapor) outlet of previous concentration tank, the water vapour of previous concentration tank becomes condensed water in the heat-exchange tube of next concentration tank, the gas outlet of each heat-exchange tube is respectively connected with a water receiver, and water receiver is connected with third water pump；Moisture in weak solution forms concentrate after being separated, and the leakage fluid dram for coming a last concentration tank is connected with the second water pump.Its implementation include vacuumize, into weak solution, again vacuumize, regenerate operation and row concentrate with arrange condensed water.
Description
Technical field
The present invention relates to the design and fabrication technology fields of refrigerated air-conditioning system, are especially applied in refrigerated air-conditioning system
A kind of solution condensing device, specifically a kind of solution condensing device and its implementation based on steam cascade utilization.
Background technique
Heat source tower heat pump system is to fully consider hot-summer and cold-winter area climatic environment and existing there are three types of cooling supply/hot mode is excellent
A kind of novel heat pump system generated on the basis of disadvantage, summer can be realized efficient cooling supply, and winter can be realized efficient confession
Heat, and do not limited by geographical environment, initial cost is lower, is the ideal air-conditioning system of hot-summer and cold-winter area.But by Xia Redong
Cryogenic region winter clammy climatic characteristic influences, and heat source tower solution is from unavoidably having solution from sky in heat transfer process in air
The phenomenon that moisture is absorbed in gas.How efficiently the moisture of solution in heat source tower to be stripped out, realizes solution concentration, become heat
In the tower heat pump system of source one of the problem of most critical.
Key component of the solution dehumidification as a kind of novel independent temperature-humidity control system simultaneously, in refrigerated air-conditioning system
Middle application it is more and more extensive.Then except there are thinning the phenomenon that releasing for moist solution after solution dehumidification, after how realizing dilution
Solution thickens while reducing energy consumption as far as possible, becomes one of the critical issue that solution dehumidifying air-conditioning system is widely popularized.
In addition, generally requiring supplement fresh water when ship goes to sea.For long-term work at sea, and to fresh water demand
Bigger occasion, the fresh water carried in ship are then unable to satisfy requirement.Therefore one efficient seawater is set in ship light
Makeup set to ship go to sea long-term reliability operation it is then extremely important.
Summary of the invention
The technical problem to be solved by the present invention is to be directed to above-mentioned state of the art, provides and pass through boiling under vacuum conditions
Rising condensation makes the moisture in weak solution efficiently remove a kind of solution concentration dress based on steam cascade utilization for realizing solution concentration
It sets and its implementation.
The technical scheme of the invention to solve the technical problem is:
A kind of solution condensing device based on steam cascade utilization, including multiple for dividing moisture extra in weak solution
The concentration tank come is separated out, multiple concentration tanks are associated with altogether to be made to build the true of vacuum environment in each concentration tank by vacuumizing
Sky pump, and in multiple concentration tanks with the leakage fluid dram of previous concentration tank by connecting the inlet of the latter concentration tank communicating pipe
Mode of communicating be sequentially connected and connect；The inlet that first concentration tank is come in multiple concentration tanks is connected with for being pumped into weak solution
The first water pump；Coming to be equipped in first concentration tank boils the moisture in tank in weak solution under vacuum conditions by heating
Rise the heating device for becoming water vapour；It comes in each concentration tank after first concentration tank and is mounted on using previous
The heat-exchange tube of solution, the air inlet of each heat-exchange tube pass through steam pipe in its tank of the steam heating of the interior generation of concentration tank
Road connects the steam (vapor) outlet of previous concentration tank, and the water vapour of previous concentration tank changes in the heat-exchange tube of next concentration tank
It is changed into condensed water after heat, the gas outlet of each heat-exchange tube is respectively connected with one for storing the water receiver of condensed water, water storage
Device is connected with the third water pump for condensed water in water receiver to be discharged；The moisture of weak solution in the solution forms concentration after being separated
Liquid, the leakage fluid dram for coming a last concentration tank are connected with the second water pump for pumping out concentrate.
To optimize above-mentioned technical proposal, the concrete measure taken further include:
Into the hot weak solution that the weak solution in the concentration tank for coming first is after preheating, first concentration is come
The inlet of tank is connected with the weak solution for the first water pump to be pumped by inlet tube and carries out preheating heating tank, heating tank
Bottom liquid inlet mouth be connected with the first water pump, the first water flow switch, feed liquor are installed on the pipeline of the water inlet end of the first water pump
The 12nd solenoid valve for control piper on-off is installed on pipe, and is being located at the 12nd solenoid valve and heating on inlet tube
Bypass has solution discharge tube on pipeline between tank, and the 13rd solenoid valve is equipped on solution discharge tube；Steaming is provided in heating tank
The inlet end of vapour heating tube, steam-heating pipe is connected by jet chimney with the steam (vapor) outlet for coming a last concentration tank
It connects, the outlet side of the steam-heating pipe is connected with one for storing the accumulator of condensed water, the leakage fluid dram and third of accumulator
Water pump is connected.
Multiple concentration tanks and heating tank are all in the same horizontal plane, and heat-exchange tube is in concentration tank and steam-heating pipe
It is helical form setting in tank；The water receiver of each concentration tank is provided with the water receiver muffler for exhaust, water storage
The outlet side connection of device muffler is mounted on true in the tank for showing on the upper end of previous concentration tank, each concentration tank
The vacuum meter of reciprocal of duty cycle and liquidometer for showing liquid level in the tank.
Solution condensing device based on steam cascade utilization includes four concentration tanks for being sequentially connected setting, four concentration tanks
It is followed successively by No.1 concentration tank, No. two concentration tanks, No. three concentration tanks and No. four concentration tanks；Heating device is electric heater, which adds
Hot device is mounted in No.1 concentration tank；The inlet end of steam-heating pipe passes through the steam (vapor) outlet phase of jet chimney and No. four concentration tanks
Connection；Accumulator muffler for exhaust is installed, the outlet side connection of accumulator muffler exists on the accumulator of heating tank
The upper end of No. four concentration tanks.
The 9th solenoid valve is installed on the communicating pipe connected between above-mentioned No.1 concentration tank and No. two concentration tanks；No. two concentrations
The tenth solenoid valve is installed on the communicating pipe connected between tank and No. three concentration tanks；It is connected between No. three concentration tanks and No. four concentration tanks
11st solenoid valve is installed on communicating pipe.
First solenoid valve, No. two concentration tanks and vacuum are installed on the pipeline that above-mentioned No.1 concentration tank is controlled to a vacuum pump
It pumps and second solenoid valve is installed on the pipeline of connection, third electromagnetism is installed on the pipeline that No. three concentration tanks are controlled to a vacuum pump
Valve is equipped with the 4th solenoid valve on the pipeline that No. four concentration tanks are controlled to a vacuum pump；Is equipped on the exhaust pipe of vacuum pump
15 solenoid valves.
The second water flow switch and the 14th are sequentially installed on the pipeline that No. four above-mentioned concentration tanks are connect with the second water pump
Solenoid valve；The 8th water flow switch and the 8th solenoid valve are sequentially installed on the pipeline that accumulator is connect with third water pump.
The water receiver of the heat-exchange tube connection of above-mentioned No. two concentration tanks is No. two water receivers, No. two water receivers and third water
It pumps and is sequentially installed with the 5th water flow switch and the 5th solenoid valve on the pipeline of connection；The storage of the heat-exchange tube connection of No. three concentration tanks
Hydrophone is No. three water receivers, and the 6th water flow switch and the are sequentially installed on the pipeline which connect with third water pump
Six solenoid valves；The water receiver of the heat-exchange tube connection of No. four concentration tanks is No. four water receivers, No. four water receivers and third water pump
The 7th water flow switch and the 7th solenoid valve are sequentially installed on the pipeline of connection.
The invention also discloses a kind of implementation methods of solution condensing device based on steam cascade utilization；This method includes
Following steps:
1.1 vacuumize:
The first solenoid valve, second solenoid valve, third solenoid valve, the 4th solenoid valve and the 15th solenoid valve are opened, is opened true
Sky pump starts to vacuumize, when the vacuum meter on No.1 concentration tank, No. two concentration tanks, No. three concentration tanks and No. four concentration tanks is shown
When vacuum degree in tank is less than -0.8bar, the first solenoid valve is closed, second solenoid valve, third solenoid valve, the 4th solenoid valve and the
15 solenoid valves, close vacuum pump, and vacuum terminates；
1.2 into weak solution:
The 13rd solenoid valve is closed, the 12nd solenoid valve, the tenth solenoid valve and the 11st solenoid valve are opened, closes the 9th electricity
Magnet valve opens the first water pump into weak solution, and the heated tank of weak solution and the 12nd solenoid valve enter in No.1 concentration tank；Work as No.1
When liquidometer on concentration tank shows that liquid level reaches design height value in tank, the first water pump is closed, the 12nd solenoid valve is closed, beats
Opening electric heater makes the weak solution in No.1 concentration tank boil under vacuum conditions concentration, when electric heater reaches set temperature
When, electric heater is closed, then the 9th solenoid valve of opening, after 3min, closes the 9th solenoid valve；
It is again turned on the 12nd solenoid valve, opens the first water pump into weak solution, when the liquidometer on No.1 concentration tank is shown
When liquid level reaches design height value in tank, the first water pump is closed, closes the 12nd solenoid valve, electric heater is opened, works as electric heating
When device reaches set temperature, electric heater is closed, is circuited sequentially, until the liquidometer on No. four concentration tanks shows that liquid level reaches in tank
When to setting height value, terminate into weak solution process；
1.3 vacuumize again
The first solenoid valve, second solenoid valve, third solenoid valve, the 4th solenoid valve and the 15th solenoid valve are opened, is opened true
Sky pump starts to vacuumize, when the vacuum meter on No.1 concentration tank, No. two concentration tanks, No. three concentration tanks and No. four concentration tanks is shown
When vacuum degree in tank is less than -0.9bar, the first solenoid valve is closed, second solenoid valve, third solenoid valve, the 4th solenoid valve and the
15 solenoid valves close vacuum pump；
1.4 regeneration operations
Electric heater is opened, when the vacuum meter on No. four concentration tanks shows that pressure is higher than -0.7bar, opens the 13rd electricity
Magnet valve closes the 12nd solenoid valve, opens the first water pump；
1.5 row's concentrates and row's condensed water
When the liquid level of No.1 concentration tank, No. two concentration tanks, No. three concentration tanks, No. four concentration tanks is lower than setting low liquid level,
The 5th solenoid valve, the 6th solenoid valve, the 7th solenoid valve, the 8th solenoid valve are opened respectively, judge the 5th water flow switch, the 6th in 5s
Whether water flow switch, the 7th water flow switch, the 8th water flow switch are opened, open then third water pump it is normal, when the 5th water flow switch,
When 6th water flow switch, the 7th water flow switch, the 8th water flow switch are fail to open, third water pump is closed；After condensed water is drained,
The make-up solution into concentration tank again, No. four concentration tanks are by opening the 11st solenoid valve supplement, and No. three concentration tanks are by opening the
Ten solenoid valves supplement, No. two concentration tanks are by opening the 9th solenoid valve supplement, and No.1 concentration tank is by opening the 12nd solenoid valve
Supplement；
When the solution condensing device based on steam cascade utilization run more than 2 it is small when, and detect the 7th solenoid valve open
And after closing, the 14th solenoid valve is opened, the second water pump is opened and concentrate is discharged, the unlatching of the second water pump closes second after five minutes
Water pump.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention is able to achieve the efficient concentration of weak solution by energy cascade utilization.
2, the present invention can use low-grade energy as driving force, such as solar energy, fishing boat engines waste heat, exhaust steam
Deng.
3, the condensation water energy that the present invention generates is for the additional soft wa ter of links or personnel's water of fishing boat warship.
4, structure of the invention is compact, and occupied area is small, and moving component is few when operation, and reliability is high.
Detailed description of the invention
Fig. 1 is attachment structure schematic diagram of the invention；
Fig. 2 is the connection schematic diagram of four concentration tanks of the invention.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Appended drawing reference therein are as follows: the first water pump B1, the second water pump B2, third water pump B3, the first solenoid valve F1, the second electricity
Magnet valve F2, third solenoid valve F3, the 4th solenoid valve F4, the 5th solenoid valve F5, the 6th solenoid valve F6, the 7th solenoid valve F7, the 8th
Solenoid valve F8, the 9th solenoid valve F9, the tenth solenoid valve F10, the 11st solenoid valve F11, the 12nd solenoid valve F12, the 14th electricity
Magnet valve F14, the 15th solenoid valve F15, inlet tube G, vacuum meter J, the first water flow switch K1, the second water flow switch K2, the 5th water
It is dense to flow switch K5, the 6th water flow switch K6, the 7th water flow switch K7, the 8th water flow switch K8, liquidometer Y, concentration tank 1, No.1
13, No. four concentration tanks 14 of the concentration tank of concentration tank 12, three of contracting tank 11, two, heating tank 3, steam-heating pipe 31, store vacuum pump 2
Hydrophone 32, accumulator muffler 33, heat-exchange tube 4, jet chimney 5, water receiver 6, water receiver muffler 61, electric heater 7.
Fig. 1 to Fig. 2 is attachment structure schematic diagram of the invention.As shown, the invention discloses one kind based on steam ladder
The solution condensing device that grade utilizes, the solution condensing device include multiple concentration tanks 1, and concentration tank 1 is used for will be more in weak solution
Remaining moisture is separated, and weak solution is made to be changed into concentrate, i.e. concentrated solution.Multiple concentration tanks 1 are associated with a vacuum pump 2 altogether,
Vacuum pump 2 is used to extract the air in concentration tank 1, makes to build vacuum environment in each concentration tank 1, under vacuum conditions
Moisture low boiling point in weak solution, therefore the moisture in solution could be preferably efficiently separated.In multiple concentration tanks 1
It is sequentially connected with the leakage fluid dram of previous concentration tank 1 by connecting the mode of communicating of the inlet of the latter concentration tank 1 communicating pipe
It connects.The inlet that first concentration tank 1 is come in multiple concentration tanks 1 is connected with the first water pump B1, the first water pump B1 be used for
It comes in first concentration tank 1 and is pumped into weak solution.In order to moisture extra in weak solution is separated, come first it is dense
Heating device is installed in contracting tank 1；Heating device can use low-grade energy as driving force, such as solar energy, and fishing boat starts
Machine waste heat, exhaust steam etc..Heating device of the invention preferably uses electrically heated electric heater 7 herein, electric heater 7
Advantage is that control is simple and convenient.Electric heater 7 makes the weak solution in tank boil under vacuum conditions by heating, makes in weak solution
Extra moisture is changed into water vapour.It comes in the concentration tank 1 of each after first concentration tank 1 and is mounted on heat exchange
Solution in tank where it is heated to boiling by pipe 4, heat-exchange tube 4 using the high-temperature water vapor generated in previous concentration tank 1
It rises, to realize the present invention to the core design theory of steam cascade utilization, constitutes the solution concentration of steam cascade utilization
Structure.The connection method of heat-exchange tube 4 is: the air inlet of each heat-exchange tube 4 passes through jet chimney 5 and connects previous concentration
The steam (vapor) outlet of tank 1.The high-temperature water vapor of previous concentration tank 1 enters the dense of next stage by jet chimney 5 and heat-exchange tube 4
In contracting tank 1, the solution in high-temperature water vapor and concentration tank 1 flowed in heat-exchange tube 4 is occurred by the tube wall of heat-exchange tube 4
Cold and hot exchange, the high-temperature water vapor after cold and hot exchange condenses in heat-exchange tube 4 is changed into condensed water, each heat-exchange tube 4
Gas outlet is respectively connected with one for storing the water receiver 6 of condensed water, and condensed water instills water receiver 6 by self weight and keeps in.Water storage
Device 6 is connected with the third water pump B3 for the condensed water in water receiver 6 to be discharged；The weak solution that first water pump B1 is pumped into is in solution
In moisture separated after form concentrate i.e. concentrated solution, the leakage fluid dram for coming a last concentration tank 1 is connected with the second water
B2 is pumped, the second water pump B2 is used to pump out the concentrated solution after separation moisture.
The present invention makes the moisture in weak solution be separated under vacuum conditions, and water separation is high-efficient, speed is fast, and
Low using steam cascade utilization heat utilization rate height, operating cost, the condensation water energy of solution condensing device output is used for each ring
The additional soft wa ter of section, when the present invention is applied on fishing boat or warship, condensed water can also be used as the personnel on fishing boat and warship
Water.
In order to improve heating speed of the weak solution in concentration tank, heat utilization ratio is improved.The present invention, which enters, comes first
Concentration tank 1 in weak solution be hot weak solution after preheating, the inlet for coming first concentration tank 1 passes through feed liquor
Pipe G is connected with the weak solution for the first water pump B1 to be pumped into and carries out preheating heating tank 3, and the first water pump B1 is pumped into dilute molten
Liquid initially enters in heating tank 3, and the inlet that heating tank 3 is provided with by bottom is connected with the discharge outlet of the first water pump B1, the
First water flow switch K1 is installed on the pipeline of the water inlet end of one water pump B1, is equipped on inlet tube G for control piper on-off
The 12nd solenoid valve F12, and bypass and have on the pipeline between the 12nd solenoid valve F12 and heating tank 3 on inlet tube G
Solution discharge tube is equipped with the 13rd solenoid valve F13 on solution discharge tube；It is provided in heating tank 3 using steam to being pumped in tank
The weak solution entered carries out preheating steam-heating pipe 31, and the inlet end of steam-heating pipe 31 by jet chimney 5 and comes most
The steam (vapor) outlet of a concentration tank 1 afterwards is connected, the outlet side of the steam-heating pipe 31 be connected with one for store condensation
The accumulator 32 of water, the leakage fluid dram of accumulator 32 are also connected with third water pump B3, will be in accumulator 32 using third water pump B3
Condensed water discharge.
In embodiment, multiple concentration tanks 1 of the invention and heating tank 3 are all in the same horizontal plane, and heat-exchange tube 4 exists
It is arranged in concentration tank 1 for helical form, same steam-heating pipe 31 is also arranged in heating tank 3 for helical form；Energy is arranged in helical form
Extend the time of steam heat exchange in tank.In order to which the remaining cryogenic gas after heat exchange is discharged in water receiver 6, each concentration
The water receiver muffler 61 for exhaust is provided on the water receiver 6 of tank 1, the outlet side of water receiver muffler 61 is connected to preceding
The upper end of one concentration tank 1.
Solution condensing device the present invention is based on steam cascade utilization includes four concentration tanks 1 for being sequentially connected setting, when
The quantity of right concentration tank 1, which can according to need, to be increased or decreased, and setting is only one of the invention preferred real there are four concentration tank 1
Apply example.In order to facilitate the understanding of the present invention, four sequentially connected concentration tanks 1 are divided into No.1 concentration tank from the front to the back
11,12, No. three concentration tanks 13 of No. two concentration tanks and No. four concentration tanks 14；I.e. the leakage fluid dram of No.1 concentration tank 11 is connected by communicating pipe
The inlet of No. two concentration tanks 12 is connect, the leakage fluid dram of No. two concentration tanks 12 connects the feed liquor of No. three concentration tanks 13 by communicating pipe
Mouthful, the leakage fluid dram of No. three concentration tanks 13 connects the inlet of No. four concentration tanks 14 by communicating pipe.Electric heater 7 is mounted on No.1
In concentration tank 11；The inlet end of steam-heating pipe 31 is connected by jet chimney 5 with the steam (vapor) outlet of No. four concentration tanks 14；Add
Accumulator muffler 33 for exhaust is installed, the outlet side connection of accumulator muffler 33 exists on the accumulator 32 of hot tank 3
The upper end of No. four concentration tanks 14.
In embodiment, the vacuum meter J for showing vacuum degree in the tank is mounted on each concentration tank 1 of the invention
With for showing the liquidometer Y of liquid level in the tank；Vacuum meter J is mounted on No.1 vacuum meter on No.1 concentration tank 11, peace
No. two vacuum meters on No. two concentration tanks 12, No. three vacuum meters being mounted on No. three concentration tanks 13 and be mounted on No. four it is dense
No. four vacuum meters on contracting tank 14.Liquidometer Y include the No.1 liquidometer being mounted on No.1 concentration tank 11, be mounted on No. two it is dense
It No. two liquidometers on contracting tank 12, No. three liquidometers being mounted on No. three concentration tanks 13 and is mounted on No. four concentration tanks 14
No. four liquidometers.
In embodiment, the 9th solenoid valve is installed on communicating pipe for connecting between No.1 concentration tank 11 and No. two concentration tanks 12
F9；The tenth solenoid valve F10 is installed on the communicating pipe connected between No. two concentration tanks 12 and No. three concentration tanks 13；No. three concentration tanks 13
The 11st solenoid valve F11 is installed on the communicating pipe connected between No. four concentration tanks 14.
In embodiment, the first solenoid valve F1, No. two concentrations are installed on the pipeline that No.1 concentration tank 11 is connect with vacuum pump 2
Second solenoid valve F2 is installed, on the pipeline that No. three concentration tanks 13 are connect with vacuum pump 2 on the pipeline that tank 12 is connect with vacuum pump 2
Third solenoid valve F3 is installed, the 4th solenoid valve F4 is installed on the pipeline that No. four concentration tanks 14 are connect with vacuum pump 2；Vacuum pump
15th solenoid valve F15 is installed on 2 exhaust pipe.
In embodiment, the second water flow switch K2 is sequentially installed on the pipeline that No. four concentration tanks 14 are connect with the second water pump B2
With the 14th solenoid valve F14；Be sequentially installed on the pipeline that accumulator 32 is connect with third water pump B3 the 8th water flow switch K8 and
8th solenoid valve F8.
In embodiment, the water receiver 6 that the heat-exchange tube 4 of No. two concentration tanks 12 connects is No. two water receivers, No. two water storages
The 5th water flow switch K5 and the 5th solenoid valve F5 is sequentially installed on the pipeline that device is connect with third water pump B3；No. three concentration tanks 13
The water receiver 6 that connects of heat-exchange tube 4 be No. three water receivers, on the pipeline which connect with third water pump B3 successively
6th water flow switch K6 and the 6th solenoid valve F6 is installed；The water receiver 6 that the heat-exchange tube 2 of No. four concentration tanks 14 connects is No. four
Water receiver is sequentially installed with the 7th water flow switch K7 and the 7th electromagnetism on the pipeline that No. four water receivers are connect with third water pump B3
Valve F7.
The present invention also provides a kind of implementation methods of solution condensing device based on steam cascade utilization；This method includes
Following steps:
1.1 vacuumize:
Open the first solenoid valve F1, second solenoid valve F2, third solenoid valve F3, the 4th solenoid valve F4 and the 15th solenoid valve
F15 opens vacuum pump 2 and starts to vacuumize, when the concentration tank 13 of concentration tank 12, three of No.1 concentration tank 11, two and No. four are concentrated
When vacuum meter J on tank 14 shows that the vacuum degree in tank is less than -0.8bar, the first solenoid valve F1, second solenoid valve F2 are closed,
Third solenoid valve F3, the 4th solenoid valve F4 and the 15th solenoid valve F15 close vacuum pump 2, and vacuum terminates；
1.2 into weak solution:
The 13rd solenoid valve F13 is closed, the 12nd solenoid valve F12, the tenth solenoid valve F10 and the 11st solenoid valve are opened
F11 closes the 9th solenoid valve F9, opens the first water pump B1 into weak solution, heated 3 and the 12nd solenoid valve F12 of tank of weak solution
Into in No.1 concentration tank 11；When the liquidometer Y on No.1 concentration tank 11 shows that liquid level reaches design height value in tank, close
First water pump B1 closes the 12nd solenoid valve F12, and opening electric heater 7 makes the weak solution in No.1 concentration tank 11 in vacuum shape
Concentration of boiling under state closes electric heater 7 when electric heater 7 reaches set temperature, then opens the 9th solenoid valve F9,
After 3min, the 9th solenoid valve F9 is closed；
It is again turned on the 12nd solenoid valve F12, opens liquid level of the first water pump B1 into weak solution, on No.1 concentration tank 11
When meter Y shows that liquid level reaches design height value in tank, the first water pump B1 is closed, closes the 12nd solenoid valve F12, opens electric heating
Device 7 is closed electric heater 7, is circuited sequentially, the liquid level on No. four concentration tanks 14 when electric heater 7 reaches set temperature
When meter Y shows that liquid level reaches setting height value in tank, terminate into weak solution process；
1.3 vacuumize again
Open the first solenoid valve F1, second solenoid valve F2, third solenoid valve F3, the 4th solenoid valve F4 and the 15th solenoid valve
F15 opens vacuum pump F2 and starts to vacuumize, when the concentration tank 13 of concentration tank 12, three of No.1 concentration tank 11, two and No. four are concentrated
When vacuum meter J on tank 14 shows that the vacuum degree in tank is less than -0.9bar, the first solenoid valve F1, second solenoid valve F2 are closed,
Third solenoid valve F3, the 4th solenoid valve F4 and the 15th solenoid valve F15 close vacuum pump 2；
1.4 regeneration operations
Electric heater 7 is opened, when the vacuum meter J on No. four concentration tanks 14 shows that pressure is higher than 0.7bar, opens the tenth
Three solenoid valve F13 close the 12nd solenoid valve F12, open the first water pump B1；
1.5 row's concentrates and row's condensed water
When the liquid level of 13, No. four concentration tanks 14 of concentration tank of concentration tank 12, three of No.1 concentration tank 11, two is low lower than setting
When liquid level, the 5th solenoid valve F5, the 6th solenoid valve F6, the 7th solenoid valve F7, the 8th solenoid valve F8 are opened respectively, and the is judged in 5s
Whether five water flow switch K5, the 6th water flow switch K6, the 7th water flow switch K7, the 8th water flow switch K8 open, and open then third
Water pump B3 is normal, when the 5th water flow switch K5, the 6th water flow switch K6, the 7th water flow switch K7, the 8th water flow switch K8 can not
When unlatching, third water pump B3 is closed；After condensed water is drained, then the make-up solution into concentration tank 1, No. four concentration tanks 14 are by beating
The 11st solenoid valve F11 supplement is opened, No. three concentration tanks 13 pass through by opening the tenth solenoid valve F10 supplement, No. two concentration tanks 12
The 9th solenoid valve F9 supplement is opened, No.1 concentration tank 11 is by opening the 12nd solenoid valve F12 supplement；
When the solution condensing device based on steam cascade utilization run more than 2 it is small when, and detect that the 7th solenoid valve F7 is beaten
After opening and closing, the 14th solenoid valve F14 is opened, the second water pump B2 is opened and concentrate is discharged, the second water pump B2 is opened after five minutes
Close the second water pump B2.
Implementation method of the invention further includes shutdown procedures, and the sequence of shutdown is first to close electric heater 7, and the is closed after 1s
One water pump B1, the second water pump B2, third water pump B3 and all solenoid valves are closed after vacuum pump 2,2 seconds.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.
Claims (6)
1. a kind of solution condensing device based on steam cascade utilization, including multiple for separating moisture extra in weak solution
Concentration tank (1) out, it is characterized in that: multiple concentration tanks (1) are associated with altogether makes each concentration tank (1) by vacuumizing
The vacuum pump (2) of vacuum environment is inside built, and logical with the leakage fluid dram of previous concentration tank (1) in multiple concentration tanks (1)
It crosses and connects the mode of communicating of the inlet of the latter concentration tank (1) communicating pipe and be sequentially connected and connect；Is come in multiple concentration tanks (1)
The inlet of one concentration tank (1) is connected with the first water pump (B1) for being pumped into weak solution；It comes in first concentration tank (1)
Be equipped with makes the moisture in tank in weak solution boil under vacuum conditions by heating becomes the heating device of water vapour；Come
It is mounted in each concentration tank (1) after one concentration tank (1) and utilizes the water vapour generated in previous concentration tank (1)
The heat-exchange tube (4) of solution in its tank is heated, the air inlet of each heat-exchange tube (4) passes through jet chimney (5) even
Connect the steam (vapor) outlet of previous concentration tank (1), the heat exchange of the water vapour of previous concentration tank (1) in next concentration tank (1)
Be changed into condensed water after heat exchange in pipe (4), the gas outlet of each heat-exchange tube (4) be respectively connected with one it is cold for storing
The water receiver (6) of condensate, the water receiver (6) are connected with the third water pump (B3) for condensed water in water receiver (6) to be discharged；
The moisture of the weak solution in the solution forms concentrate after being separated, and comes the drain of a last concentration tank (1)
Mouth is connected with the second water pump (B2) for pumping out concentrate.
2. a kind of solution condensing device based on steam cascade utilization according to claim 1, it is characterized in that: into coming
Weak solution in first concentration tank (1) is the hot weak solution after preheating, comes the inlet of first concentration tank (1)
It is connected with the heating tank (3) that the weak solution for the first water pump (B1) to be pumped into heats by inlet tube (G), described adds
The bottom liquid inlet mouth of hot tank (3) is connected with the first water pump (B1), pacifies on the pipeline of the water inlet end of first water pump (B1)
Equipped with the first water flow switch (K1), the 12nd solenoid valve for control piper on-off is installed on the inlet tube (G)
(F12), and on inlet tube (G) bypass has solution row on the pipeline between the 12nd solenoid valve (F12) and heating tank (3)
Outlet pipe is equipped with the 13rd solenoid valve (F13) on the solution discharge tube；Steam is provided in the heating tank (3) to add
The inlet end of heat pipe (31), the steam-heating pipe (31) by jet chimney (5) and comes a last concentration tank (1)
Steam (vapor) outlet be connected, the outlet side of the steam-heating pipe (31) is connected with one for storing the accumulator of condensed water
(32), the leakage fluid dram of the accumulator (32) is connected with third water pump (B3).
3. a kind of solution condensing device based on steam cascade utilization according to claim 2, it is characterized in that: multiple concentrations
Tank and heating tank are all in the same horizontal plane, and the heat-exchange tube (4) is in concentration tank (1) and steam-heating pipe (31) exists
It is helical form setting in heating tank (3)；The water receiver (6) of each concentration tank (1) is provided with the storage for exhaust
The outlet side of hydrophone muffler (61), the water receiver muffler (61) is connected in the upper end of previous concentration tank (1)；It is each
The vacuum meter for showing vacuum degree in the tank (J) is mounted on the concentration tank (1) and for showing liquid level in the tank
The liquidometer (Y) of height.
4. a kind of solution condensing device based on steam cascade utilization according to claim 3, it is characterized in that: being based on steam
The solution condensing device of cascade utilization includes four concentration tanks (1) for being sequentially connected setting, and four concentration tanks (1) are followed successively by No.1
Concentration tank (11), No. two concentration tanks (12), No. three concentration tanks (13) and No. four concentration tanks (14)；The heating device is that electricity adds
Hot device (7), the electric heater (7) are mounted in No.1 concentration tank (11)；The inlet end of the steam-heating pipe (31) passes through
Jet chimney (5) is connected with the steam (vapor) outlet of No. four concentration tanks (14)；It is installed on the accumulator (32) of the preheating can (3)
There is the accumulator muffler (33) for exhaust, the outlet side of the accumulator muffler (33) is connected in No. four concentration tanks
(14) upper end；
The 9th solenoid valve (F9) is installed on the communicating pipe connected between the No.1 concentration tank (11) and No. two concentration tanks (12)；
The tenth solenoid valve (F10) is installed on the communicating pipe connected between No. two concentration tanks (12) and No. three concentration tanks (13)；Institute
The 11st solenoid valve (F11) is installed on the communicating pipe connected between No. three concentration tanks (13) and No. four concentration tanks (14) stated；
It is equipped with the first solenoid valve (F1) on the pipeline that the No.1 concentration tank (11) is connect with vacuum pump (2), described two
It is equipped with second solenoid valve (F2) on the pipeline that number concentration tank (12) is connect with vacuum pump (2), No. three concentration tanks (13)
It is equipped on the pipeline being connect with vacuum pump (2) third solenoid valve (F3), No. four concentration tanks (14) and vacuum pump (2) are even
4th solenoid valve (F4) is installed on the pipeline connect；The 15th solenoid valve is installed on the exhaust pipe of the vacuum pump (2)
(F15)。
5. a kind of solution condensing device based on steam cascade utilization according to claim 4, it is characterized in that: described four
The second water flow switch (K2) and the 14th electromagnetism are sequentially installed on the pipeline that number concentration tank (14) is connect with the second water pump (B2)
Valve (F14)；The 8th water flow switch (K8) is sequentially installed on the pipeline that the accumulator (32) is connect with third water pump (B3)
With the 8th solenoid valve (F8)；The water receiver (6) of heat-exchange tube (4) connection of No. two concentration tanks (12) is No. two water receivers,
The 5th water flow switch (K5) and the 5th solenoid valve are sequentially installed on the pipeline that No. two water receivers are connect with third water pump (B3)
(F5)；The water receiver (6) of heat-exchange tube (4) connection of No. three concentration tanks (13) is No. three water receivers, No. three water receivers
The 6th water flow switch (K6) and the 6th solenoid valve (F6) are sequentially installed on the pipeline connecting with third water pump (B3)；Described No. four
The water receiver (6) of heat-exchange tube (2) connection of concentration tank (14) is No. four water receivers, No. four water receivers and third water pump (B3)
The 7th water flow switch (K7) and the 7th solenoid valve (F7) are sequentially installed on the pipeline of connection.
6. a kind of implementation method of the solution condensing device based on steam cascade utilization described in claim 5；It is characterized in that: should
Method the following steps are included:
1.1 vacuumize:
It opens the first solenoid valve (F1), second solenoid valve (F2), third solenoid valve (F3), the 4th solenoid valve (F4) and the 15th electricity
Magnet valve (F15) opens vacuum pump (2) and starts to vacuumize, when No.1 concentration tank (11), No. two concentration tanks (12), No. three concentration tanks
(13) when and the vacuum meter (J) on No. four concentration tanks (14) shows that the vacuum degree in tank is less than -0.8bar, the first electromagnetism is closed
Valve (F1), second solenoid valve (F2), third solenoid valve (F3), the 4th solenoid valve (F4) and the 15th solenoid valve (F15) are closed true
Sky pump (2), vacuum terminates；
1.2 into weak solution:
The 13rd solenoid valve (F13) is closed, the 12nd solenoid valve (F12), the tenth solenoid valve (F10) and the 11st solenoid valve are opened
(F11), the 9th solenoid valve (F9) is closed, opens the first water pump (B1) into weak solution, the heated tank of weak solution (3) and the 12nd electricity
Magnet valve (F12) enters in No.1 concentration tank (11)；When the liquidometer (Y) on No.1 concentration tank (11) shows that liquid level reaches and sets in tank
It when counting height value, closes the first water pump (B1), closes the 12nd solenoid valve (F12), opening electric heater (7) makes No.1 concentration tank
(11) weak solution in is boiled concentration under vacuum conditions, when electric heater (7) reaches set temperature, closes electric heater
(7), the 9th solenoid valve (F9) is then opened, after 3min, closes the 9th solenoid valve (F9)；
It is again turned on the 12nd solenoid valve (F12), opens the liquid of the first water pump (B1) into weak solution, on No.1 concentration tank (11)
It when position meter (Y) shows that liquid level reaches design height value in tank, closes the first water pump (B1), closes the 12nd solenoid valve (F12), beat
Open electric heater (7), when electric heater (7) reaches set temperature, close electric heater (7), circuit sequentially, until No. four it is dense
When liquidometer (Y) on contracting tank (14) shows that liquid level reaches setting height value in tank, terminate into weak solution process；
1.3 vacuumize again
It opens the first solenoid valve (F1), second solenoid valve (F2), third solenoid valve (F3), the 4th solenoid valve (F4) and the 15th electricity
Magnet valve (F15) opens vacuum pump (F2) and starts to vacuumize, when No.1 concentration tank (11), No. two concentration tanks (12), No. three concentration tanks
(13) when and the vacuum meter (J) on No. four concentration tanks (14) shows that the vacuum degree in tank is less than 0.9bar, the first electromagnetism is closed
Valve (F1), second solenoid valve (F2), third solenoid valve (F3), the 4th solenoid valve (F4) and the 15th solenoid valve (F15) are closed true
Sky pump (2)；
1.4 regeneration operations
It opens electric heater (7), when the vacuum meter (J) on No. four concentration tanks (14) shows that pressure is higher than 0.7bar, opens the
13 solenoid valves (F13) close the 12nd solenoid valve (F12), open the first water pump (B1)；
1.5 row's concentrates and row's condensed water
When No.1 concentration tank (11), No. two concentration tanks (12), No. three concentration tanks (13), No. four concentration tanks (14) liquid level lower than setting
When determining low liquid level, the 5th solenoid valve (F5), the 6th solenoid valve (F6), the 7th solenoid valve (F7), the 8th solenoid valve are opened respectively
(F8), the 5th water flow switch (K5), the 6th water flow switch (K6), the 7th water flow switch (K7), the 8th water flow switch are judged in 5s
(K8) whether open, open then third water pump (B3) normally, when the 5th water flow switch (K5), the 6th water flow switch (K6), the 7th
When water flow switch (K7), the 8th water flow switch (K8) are fail to open, close third water pump (B3)；After condensed water is drained, then to
Concentration tank (1) interior make-up solution, No. four concentration tanks (14) are by opening the 11st solenoid valve (F11) supplement, No. three concentration tanks
(13) by opening the tenth solenoid valve (F10) supplement, No. two concentration tanks (12) are by opening the 9th solenoid valve (F9) supplement, No.1
Concentration tank (11) is by opening the 12nd solenoid valve (F12) supplement；
When the solution condensing device based on steam cascade utilization run more than 2 it is small when, and detect the 7th solenoid valve (F7) open
And after closing, the 14th solenoid valve (F14) is opened, the second water pump (B2) is opened and concentrate is discharged, the second water pump (B2) opens 5 points
The second water pump (B2) is closed after clock.
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| CN111760309A (en) * | 2020-07-08 | 2020-10-13 | 袁东立 | High-efficient solution enrichment facility suitable for energy tower system |
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