CN205917031U - Phosphoric acid refrigeration cycle water vacuum device - Google Patents
Phosphoric acid refrigeration cycle water vacuum device Download PDFInfo
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- CN205917031U CN205917031U CN201620937736.6U CN201620937736U CN205917031U CN 205917031 U CN205917031 U CN 205917031U CN 201620937736 U CN201620937736 U CN 201620937736U CN 205917031 U CN205917031 U CN 205917031U
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- phosphoric acid
- negative pressure
- return pipe
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Abstract
The utility model provides a phosphoric acid refrigeration cycle water vacuum device relates to the purification field of phosphorus and compound, including phosphoric acid refrigeration cycle water vacuum device vacuum filter (1), leading vapour and liquid separator (2), negative pressure pipe (3), negative pressure maintaining device, hydration tower (4), plate heat exchanger (5), cooling water pool (6), water cooling tower (7), circulation back water pump (8), the utility model discloses adopting completely and cooling off potential energy of water in the existing equipment, better carried out the energy conversion, the reasonable application of the energy that will not utilize, wastes is to need additionally apply the position that the energy could move in the past to successfully realize the steady operation of system, when creating certain economic benefits, improved traditional bad image to the high energy consumption trade and have positive exemplary role, produced good social.
Description
Technical field
This utility model is related to the technical field of purification of phosphorus and its compound and in particular to cooling during phosphoric acid purification
Recirculated water negative pressure device.
Background technology
Phosphoric acid is important phosphorous chemical industry raw material, is one of larger chemical products of yield in the world, its being widely used in
Fertile industrial and other department.At present, the production technology of phosphoric acid is broadly divided into electric furnace process production, full-boiled process produces, kiln method produces and wet
Method produces, and wherein wet production application is wider.
In phosphoric acid production technique, vacuum filter is committed step.The filter plant generally adopting is vacuum filter, filters
The vacuum of machine is produced by vacuum pump, and existing production system is to filter phosphoric acid using vacuum pumping negative pressure, and equipment investment is big, simultaneously
Due to needing the vacuum pump moment to operate, energy consumption is higher, work under bad environment.
And full-boiled process produces in process phosphoric acid, due to the temperature of hydration Tower System is maintained 80 DEG C about, otherwise affect
Product quality, the heat erosion simultaneously for equipment is more serious, so needing substantial amounts of cooling water circulation cooling.Typically by water
Close phosphoric acid out and cooling water in tower and be passed through after plate type heat exchanger carries out heat exchange simultaneously, phosphoric acid Temperature is down to required model
Enclose, be passed through in hydration tower and continue cycling through；And the temperature of cooling water raises, need to return in cooling bay and taken out by water pump again after cooling
Enter cooling system circulation.
Due to the needs of existing process, there is certain difference in height with hydration tower and circulating cooling system in cooling bay, cooling
Water expends larger energy by water pump and is passed at the higher hydration tower of physical features and circulating cooling system carry out heat exchange,
Due to drop relation, the cooling water after these intensifications has higher potential energy.
In existing system, the cooling water after this part heats up makes to be passed straight back under gravity cool down by pipeline
Chi Zhong, the potential energy wherein being contained rationally is not utilized, and the heat that thermal phosphoric acid technique produces is huge, therefore for cold
But the demand of water is larger, is calculated with the equipment of a set of 10000 tons of industrial phosphoric acids of annual production, its per hour cooling water amount in 300-
400m, the potential energy that the cooling water of such order of magnitude is contained is huge, is not but rationally utilized in existing process.
To sum up state, in existing phosphorous acid production by BEP technique, filtration stage needs to expend energy by vacuum pump evacuation
To filter, and to spend contained relatively high potential energy in the cooling water of electric energy hoisting depth to waste, this actually causes energy
The dual increase of consumption.Therefore, during phosphorous acid production by BEP, how to make full use of the potential energy of cooling circulating water, to obtain it
Negative pressure needed for filtration stage or vacuum environment, energy-saving for phosphorous acid production by BEP has very significant meaning.
Content of the invention
For overcoming the disadvantages mentioned above of prior art, this utility model provides a kind of phosphoric acid cooling circulating water negative pressure device, should
Device makes full use of the potential energy contained by hydration tower 4 cooling water, is used in phosphoric acid vacuum filtering system, obtains vacuum
Filter required vacuum state, vacuum equipment that need not be extra is invested and repair cost, does not also produce additional energy consumption, saves
Power consumption, decreases cost of investment and the maintenance cost of equipment.
For achieving the above object, this utility model employs the following technical solutions: phosphoric acid cooling circulating water negative pressure device, including
Vacuum filter 1, preposition gas-liquid separator 2, negative tube 3, negative pressure maintain device, hydration tower 4, plate type heat exchanger 5, cooling pond
6th, water cooling tower 7, loop back water pump 8.
The drain pipe of described vacuum filter 1 is connected to above preposition gas-liquid separator 2 side, and preposition gas-liquid separator 2 pushes up
Portion arranges evacuated tube 201, and lower end connects negative tube 3, and negative tube 3 continues to extend, and connects to negative pressure maintenance device.
Setting phosphoric acid discharge nozzle 401 and feed pipe 402 on described hydration tower 4, discharge nozzle 401 connects to plate type heat exchanger 5
Upper end, plate type heat exchanger 5 upper end and discharge nozzle 401 parallel position arrange cooling water inlet pipe 403, plate type heat exchanger 5 lower end
Connect feed pipe 402 and cooling water outlet pipe 404；Described water inlet pipe 403 is connected with looping back water pump 8, and described outlet pipe 404 is even
It is connected to negative pressure and maintain device.
Described negative pressure maintains device to include water leg 9, return pipe 10, and described return pipe 10 upper end is connected to water leg 9 bottom
Portion, lower end is submerged in cooling pond 6, negative tube 3 open-ended, and stretch in water leg 9 and return pipe 10, outlet pipe 404
Cooling water after middle intensification is pooled in water leg 9, is dropped in cooling pond 6 by return pipe 10, is arranged on cooling pond 6
In water cooling tower 7 cooled, combined temp require after, be sent in water inlet pipe 403 enter by looping back water pump 8
The circulating cooling to phosphoric acid for the row.
Setting flow control valve 101 on described return pipe 10 is it is ensured that the cooling water in return pipe 10 and water leg 9 is higher than negative
The port of pressure pipe 3.
For preventing the phosphoric acid in vacuum filter 1 from entering in cooling pond 6 by negative tube 3, in water leg 9 and preposition gas
Rearmounted gas-liquid separator 11 is arranged on the negative tube 3 between liquid/gas separator 2.
Vacuum for improving system maintains ability, and described negative tube 3 quantity stretching in water leg 9 and return pipe 10 is two
More than root.
Vacuum for improving system maintains ability, and described negative tube 3 port stretched in water leg 9 and return pipe 10 sets
Put piston apparatus, in negative tube 3, directly persistently carry out the action of evacuation.
The operation principle of this device is: cooling water, by looping back water pump 8 rising height, enters plate by water inlet pipe 403
Carry out heat exchange in formula heat exchanger 5, to hydration tower 4 in phosphoric acid carry out temperature control, after the completion of heat up cooling water pass through
Water leg 9 delivered to by outlet pipe 404, and dropped in cooling pond 6 by return pipe 10, is cooled by water cooling tower 7；
Stretch into negative tube 3 in water leg 9 and return pipe 10 in cooling water dropping process, water is under gravity constantly by negative tube
Gas in 3 siphons away, and continual repetition, and negative tube 3 is maintained negative pressure or vacuum state, and is divided by preposition gas-liquid
From the vacuum filter 1 that device 2 is connected with negative tube 3 under the extraction of negative tube 3 vacuum acts on, constantly filter phosphoric acid, preposition gas
After phosphoric acid after filtering is separated by liquid/gas separator 2 with gas, gas empties, and phosphoric acid enters in wet tank, completes filtration operation；
Cooling water constantly circulates, and under conditions of the drop of highland, potential energy is constantly to maintain negative tube 3 vacuum by the cooling water of backflow
The mechanical energy of state, by adjust the flow of each part, control parameter etc. realize system whole machine balancing stable it is not necessary to external true
Empty pump is the sustainable vacuum state maintaining needed for vacuum filter 1.
The beneficial effects of the utility model are:
Equipment of the present utility model is simple, can be transformed on original thermal phosphoric acid equipment, and overall equipment is thrown
Money is little；Decrease the higher vacuum pump of original power consumption simultaneously, greatly reduce required electric energy and the plant maintenance cost of repairs, run
Cost substantially reduces with respect to legacy equipment.This device adopts the potential energy of cooling water in existing equipment completely, preferably carries out
Energy is changed, and conventional needs extra to apply what energy could run by not reasonably being applied to using, the energy that wastes
Position, and it is successfully realized the stable operation of system, while creating certain economic benefit, high energy consumption industry is improved and passes
The undesired image of system has positive exemplary role, creates good social benefit.
Brief description
Fig. 1 is the structure of phosphoric acid cooling circulating water negative pressure device and connection diagram described in embodiment 1.
Fig. 2 is the structure of phosphoric acid cooling circulating water negative pressure device and connection diagram described in embodiment 2.
Fig. 3 is the connection diagram of described phosphoric acid cooling circulating water negative pressure device.
Fig. 4 is the sectional structure chart that described negative pressure maintains device.
In figure, vacuum filter 1, preposition gas-liquid separator 2, evacuated tube 201, negative tube 3, hydration tower 4, discharge nozzle 401,
Feed pipe 402, water inlet pipe 403, outlet pipe 404, plate type heat exchanger 5, cooling pond 6, water cooling tower 7, loop back water pump 8, collection
Tank 9, return pipe 10, flow control valve 101, rearmounted gas-liquid separator 11.
Specific embodiment
With reference to the accompanying drawings and examples this utility model is further illustrated.
Embodiment 1
As shown in Fig. 1,3,4, inclusion vacuum filter 1 described in the present embodiment, preposition gas-liquid separator 2, negative tube 3,
Negative pressure maintains device, hydration tower 4, plate type heat exchanger 5, cooling pond 6, water cooling tower 7, loops back water pump 8.
The drain pipe of described vacuum filter 1 is connected to above preposition gas-liquid separator 2 side, and preposition gas-liquid separator 2 pushes up
Portion arranges evacuated tube 201, and lower end connects negative tube 3, and negative tube 3 continues to extend, and connects to negative pressure maintenance device.
Setting phosphoric acid discharge nozzle 401 and feed pipe 402 on described hydration tower 4, discharge nozzle 401 connects to plate type heat exchanger 5
Upper end, plate type heat exchanger 5 upper end and discharge nozzle 401 parallel position arrange cooling water inlet pipe 403, plate type heat exchanger 5 lower end
Connect feed pipe 402 and cooling water outlet pipe 404；Described water inlet pipe 403 is connected with looping back water pump 8, and described outlet pipe 404 is even
It is connected to negative pressure and maintain device.
Described negative pressure maintains device to include water leg 9, return pipe 10, and described return pipe 10 upper end is connected to water leg 9 bottom
Portion, lower end is submerged in cooling pond 6, negative tube 3 open-ended, and stretch in water leg 9 and return pipe 10, outlet pipe 404
Cooling water after middle intensification is pooled in water leg 9, is dropped in cooling pond 6 by return pipe 10, is arranged on cooling pond 6
In water cooling tower 7 cooled, combined temp require after, be sent in water inlet pipe 403 enter by looping back water pump 8
The circulating cooling to phosphoric acid for the row；Described negative tube 3 quantity stretching in water leg 9 and return pipe 10 is one.
Setting flow control valve 101 on described return pipe 10 is it is ensured that the cooling water in return pipe 10 and water leg 9 is higher than negative
The port of pressure pipe 3.
Embodiment 2
As shown in Figure 2,3, 4, the phosphoric acid cooling circulating water negative pressure device described in the present embodiment, its structure and embodiment 1 institute
State basically identical, distinguishing characteristicss are, for preventing the phosphoric acid in vacuum filter 1 from entering in cooling pond 6 by negative tube 3,
On negative tube 3 between water leg 9 and preposition gas-liquid separator 2, rearmounted gas-liquid separator 11 is set；For improving the true of system
Empty maintenance ability, described negative tube 3 quantity stretching in water leg 9 and return pipe 10 is two.
Claims (5)
1. phosphoric acid cooling circulating water negative pressure device it is characterised in that include vacuum filter (1), preposition gas-liquid separator (2),
Negative tube (3), negative pressure maintain device, hydration tower (4), plate type heat exchanger (5), cooling pond (6), water cooling tower (7), loop back
Water pump (8)；
The drain pipe of described vacuum filter (1) is connected to above preposition gas-liquid separator (2) side, preposition gas-liquid separator (2)
Top setting evacuated tube (201), lower end connects negative tube (3), and negative tube (3) continues to extend, and connects to negative pressure maintenance device；
Described hydration tower (4) is upper to arrange phosphoric acid discharge nozzle (401) and feed pipe (402), and discharge nozzle (401) connects to plate-type heat-exchange
The upper end of device (5), plate type heat exchanger (5) upper end and discharge nozzle (401) parallel position setting cooling water inlet pipe (403), board-like
Heat exchanger (5) lower end connects feed pipe (402) and cooling water outlet pipe (404)；Described water inlet pipe (403) with loop back water pump
(8) connect, described outlet pipe (404) connects to negative pressure maintenance device；
Described negative pressure maintains device to include water leg (9), return pipe (10), and described return pipe (10) upper end is connected to water leg
(9) bottom, lower end is submerged in cooling pond (6), negative tube (3) open-ended, and stretch into water leg (9) and return pipe (10)
In, the cooling water after heating up in outlet pipe (404) is pooled in water leg (9), drops to cooling pond by return pipe (10)
(6) in, the water cooling tower (7) being arranged in cooling pond (6) is cooled, after combined temp requires, by looping back
Water pump (8) is sent to carry out the circulating cooling to phosphoric acid in water inlet pipe (403)；
Described return pipe (10) is upper to arrange flow control valve (101) it is ensured that the cooling water in return pipe (10) and water leg (9) is high
Port in negative tube (3).
2. phosphoric acid cooling circulating water negative pressure device according to claim 1 is it is characterised in that in water leg (9) and preposition
Negative tube (3) between gas-liquid separator (2) is upper to arrange rearmounted gas-liquid separator (11).
3. phosphoric acid cooling circulating water negative pressure device according to claim 1 and 2 is it is characterised in that described stretch into water leg
(9) negative tube (3) quantity and in return pipe (10) is more than two.
4. phosphoric acid cooling circulating water negative pressure device according to claim 1 and 2 is it is characterised in that described stretch into water leg
(9) negative tube (3) the port setting piston apparatus and in return pipe (10), directly persistently carry out taking out very in negative tube (3)
Empty action.
5. phosphoric acid cooling circulating water negative pressure device according to claim 3 is it is characterised in that described stretch into water leg (9)
Negative tube (3) port setting piston apparatus with return pipe (10), directly persistently carry out evacuation in negative tube (3)
Action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620937736.6U CN205917031U (en) | 2016-08-25 | 2016-08-25 | Phosphoric acid refrigeration cycle water vacuum device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620937736.6U CN205917031U (en) | 2016-08-25 | 2016-08-25 | Phosphoric acid refrigeration cycle water vacuum device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205917031U true CN205917031U (en) | 2017-02-01 |
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ID=57871163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620937736.6U Active CN205917031U (en) | 2016-08-25 | 2016-08-25 | Phosphoric acid refrigeration cycle water vacuum device |
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| Country | Link |
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| CN (1) | CN205917031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677025A (en) * | 2017-11-09 | 2018-02-09 | 贵阳开磷化肥有限公司 | A kind of high nitrogen type complex fertilizer product cooling device and its cooling means |
-
2016
- 2016-08-25 CN CN201620937736.6U patent/CN205917031U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677025A (en) * | 2017-11-09 | 2018-02-09 | 贵阳开磷化肥有限公司 | A kind of high nitrogen type complex fertilizer product cooling device and its cooling means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 652500 dongjishao yeyatang, Jiucun Town, Chengjiang City, Yuxi City, Yunnan Province Patentee after: Yunnan Chengjiang Huaye Phosphorus Chemical Co.,Ltd. Address before: 652500 dongjishao yeyatang, Jiucun Town, Chengjiang County, Yuxi City, Yunnan Province Patentee before: CHENGJIANG HUAYE PHOSPHORUS CHEMICALS Co.,Ltd. |
|
| CP03 | Change of name, title or address |