CN206146232U - Cooling system of gas clean up - Google Patents
Cooling system of gas clean up Download PDFInfo
- Publication number
- CN206146232U CN206146232U CN201621224255.7U CN201621224255U CN206146232U CN 206146232 U CN206146232 U CN 206146232U CN 201621224255 U CN201621224255 U CN 201621224255U CN 206146232 U CN206146232 U CN 206146232U
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- China
- Prior art keywords
- water
- condenser
- jet pump
- cooling system
- jet
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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model discloses a cooling system of gas clean up, including the condenser, the condenser is connected with water jet air ejector through first pipeline, water jet air ejector still with the delivery port of water -jet pump intercommunication, the water inlet and the circulating water flow siphunculus way intercommunication of water -jet pump, work water 's temperature in the circulating water directly gets into the water -jet pump and then has reduced the water -jet pump. The utility model discloses a supply with the water -jet pump with the circulating water, the entry work water temperature of water -jet pump reduces, and then the vacuum that water jet air ejector set up is better, and the suction ability is stronger, and the vacuum of condenser is higher, has not only practiced thrift the water source, has improved the vacuum of condenser, and the main has practiced thrift energy coal slime.
Description
Technical field
The utility model is related to a kind of cooling system of raising vacuum.
Background technology
At present the most of Power Plants of China run low vacuum, and condensate undercooling is larger, causes the effective of unit
Low using enthalpy drop, heat loss is increased, uneconomical, while unit output decreases；Exhaust temperature is raised, and may make condenser copper
Pipe is lax, destroys tightness；Exhaust temperature is raised, and makes exhaust casing and bearing block expanded by heating, causes center to change, and generation is shaken
It is dynamic；Steam turbine axial displacement increases, and causes thrust bearing to transship and wear and tear；Vacuum decay reduces the volume flow of steam discharge, right
The a certain position of exhaust stage blade produces larger exciting force, it is possible to damaged blade, causes the accident.
Because the work coolant-temperature gage of air extractor is lower, the vacuum that suction reaches is higher, therefore needs using during air suction mode
The temperature for ensureing air extractor working water meets certain condition.When lifting vacuum using air suction mode at present, recruitment is needed
Industry water (well water), recirculated water (cooling tower water) reducing the temperature of working water in air extractor, due to the area of air extractor
It is very big, need to reduce temperature with substantial amounts of industry water, recirculated water, cooling-down effect is also poor, maintains condenser vacuum ability also poor.
It is the vacuum for ensureing condenser in unit operation, industry water must supply air extractor to tie up as power water source for a long time
The vacuum of condenser is held, the loss in vain of substantial amounts of industry water is caused, the waste at water source is caused.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of cooling system of raising vacuum
System, improves the vacuum of condenser, and the change of exerting oneself of unit is big, reduces the heat loss of unit, reaches energy-saving purpose,
The safe operation of unit is ensured.
For achieving the above object, the utility model adopts following technical proposals：
A kind of cooling system for improving vacuum, including condenser, the condenser is evacuated by the first pipeline with jetting
Device connects, and the water jet air ejector is also connected with the delivery port of water-jet pump, water inlet and the circulating water flow siphunculus of the water-jet pump
Road connects, and recirculated water is directly entered water-jet pump and then reduces the temperature of working water in water-jet pump.The temperature of working water in water-jet pump
Degree is reduced, so that the vacuum that water jet air ejector is set up is more preferably, suction capactity strengthens, and then improves the vacuum of condenser
Degree.
The water jet air ejector is connected with jetting case, and the jetting case is also connected with the water inlet of water-jet pump.Jetting is evacuated
Device, water-jet pump and jetting box-shaped recycle the working water in jetting case into closed cycle, and working water is via the high rapid fire of water-jet pump
Go out, make to produce high vacuum in water jet air ejector, and then extract the vapour gas mixture in condenser out, improve the vacuum of condenser
Degree.
The recirculated water flow pipe is also connected by the second pipeline with jetting case, and on second pipeline valve is arranged.
Make recirculated water to enter jetting case, to the closed cycle of water jet air ejector make-up water is provided.
The recirculated water flow pipe is connected with water circulating pump, and water circulating pump is connected with cooling tower collecting-tank, the circulation
Valve is provided between water flow pipe and jetting pump intake.
Preferably, the water inlet of the water-jet pump is also connected with industry water flow pipe, on the industry water flow pipe
Valve is set.By providing industry water for water-jet pump, the temperature of the working water in water-jet pump is lower, and it is true that water jet air ejector is set up
It is empty more preferable, it is higher to the suction capactity of gas in condenser.
The industry water flow pipe is connected with well.
It is connected with the first air hose and the second air hose being arranged in parallel between first pipeline and condenser, described
Valve is respectively provided with one air hose and the second air hose.Water jet air ejector is via the first air hose and the second air hose to condenser
Vacuumized, be two flow process twice control surface formulas by condenser, aspirated from condenser both sides, the non-condensing gas of extraction
Body and air effect are good, which reduces the cooling gas of unit area, and good cooling results, the vacuum of condenser is all right.
The water jet air ejector includes mixing chamber, and the mixing chamber is connected with diffuser, and the diffuser connects with jetting case
It is logical.
The first entrance of the mixing chamber is connected with the delivery port of water-jet pump, the second entrance and first pipe of the mixing chamber
Road connects.
The working water Jing nozzle at high speeds of water-jet pump is projected, the indoor generation high vacuum of mixing, and then by gas in condenser
Extract out, into after anemostat, water velocity slows down, discharge anemostat and enter jetting case.
The arranged direction of the first entrance is mutually perpendicular to the arranged direction of second entrance.
Non-return valve is set at the second entrance of the mixing chamber.When preventing water jet air ejector from breaking down, working water can quilt
In suction condenser.
To ensure to maintain high vacuum and good heat-transfer effect in condenser during steam condensation, it is furnished with jetting pumping
Device, it constantly extracts out the air leak in condenser and other incondensable gases.From water-jet pump come with certain pressure
Working water Jing hydroecium enters nozzle.The pressure energy of press water is speed energy by nozzle, and current project at a high speed from nozzle, make to mix
Indoor generation high vacuum is closed, vapour, the gas mixture in condenser is extracted out, together into anemostat, water velocity slows down, pressure
Gradually rise, finally being slightly above the pressure venting anemostat of atmospheric pressure.Non-return flap is housed in mixing-chamber inlet, pumping can be prevented
When device breaks down, working water is inhaled in condensing room.Using water jet air ejector to extract condenser in air and other not
Noncondensing gas, can effectively improve the vacuum of unit, and the change of exerting oneself of unit is big, reduces gross coal consumption rate, reduces the heat waste of unit
Lose, reach energy-saving purpose.The energy is not only saved, it is to avoid the waste of water resource, while ensure that existing equipment
Security and stability and economy, the system architecture is simple, easy to use.
The beneficial effects of the utility model are：
By the way that recirculated water is supplied into water-jet pump, the entrance work coolant-temperature gage of water-jet pump is reduced the utility model, and then jetting
More preferably, suction capactity is higher, and the vacuum of condenser is higher, has not only saved water source, improves solidifying for the vacuum that air ejector is set up
The vacuum of vapour device, has more importantly saved energy coal slime.
Circulating water line is directly connected to the utility model the entrance of water-jet pump, the work in recirculated water and jetting pump conduit
The contact area of water is little, good cooling results, and cooling is fast, and only recirculated water just can reach cooling effect to cool down, and reaches condenser
Vacuum.
Industrial water lines can also be connected to the utility model the entrance of water-jet pump, and cooling water effect is significantly improved, because
The area of cooling water is reduced, and flow velocity is fast, good cooling results, and better, suction capactity is stronger, condensing for the vacuum that water jet air ejector is set up
The vacuum of device is higher, and energy-saving effect is better.
Description of the drawings
Fig. 1 is the utility model cooling system schematic diagram；
In figure, 1 is condenser, and 2 is diffuser, and 3 is mixing chamber, and 4 is air hose, and 5 is industry water flow pipe, and 6 is to follow
Ring water flow pipe, 7 is water-jet pump, and 8 is jetting case, and 9 is the first pipeline, and 10 is the second pipeline, 11 valves, 12 wells, and 13 follow
Ring water pump, 14 cooling tower collecting-tanks.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of cooling system for improving vacuum, including condenser 1, condenser 1 by the first pipeline 9 with
Water jet air ejector connects, and water jet air ejector includes mixing chamber 3, and mixing chamber 3 is connected with diffuser 2, and diffuser 2 connects with jetting case 8
Logical, the first entrance of mixing chamber 3 is connected with the delivery port of water-jet pump 7, and the second entrance of mixing chamber 3 is connected with the first pipeline 9, is penetrated
The water inlet of water pump 7 is connected with recirculated water flow pipe 6, and recirculated water enters the vacuum that water-jet pump improves condenser.Water-jet pump
Working water Jing nozzle at high speeds project, the indoor generation high vacuum of mixing, and then gas in condenser is extracted out, into anemostat
Afterwards, water velocity slows down, and discharges anemostat and enters jetting case.
Jetting case 8 is also connected with the water inlet of water-jet pump 7.Water jet air ejector, water-jet pump and jetting box-shaped into closed cycle,
The working water in jetting case is recycled, working water is projected at a high speed via water-jet pump, makes to produce high vacuum in water jet air ejector,
And then extract the vapour gas mixture in condenser out, improve the vacuum of condenser.
Recirculated water flow pipe 6 is also connected by the second pipeline 10 with jetting case 8, and valve 11 is arranged on the second pipeline 10,
Herein valve is typically in closed mode.When needed, valve 11 herein can be opened, makes recirculated water to enter jetting case, be given
The closed cycle of water jet air ejector provides make-up water.
Recirculated water in recirculated water flow pipe 6 is that the gravity flow of cooling tower collecting-tank water outlet Jing circulating lodes enters water circulating pump
Between room intakes, Jing circulating water pipes deliver to condenser after water circulating pump boosting, and it is cold that condenser draining Jing circulating water pipes enter cooling tower
But, again circulating pump room is entered after cooling, is recycled.
Recirculated water flow pipe 6 is connected with water circulating pump 13, and water circulating pump 13 is connected with cooling tower collecting-tank 14, recirculated water
Valve 11 is provided between flow pipe 6 and the entrance of water-jet pump 7.
The water inlet of water-jet pump 7 is also connected with industry water flow pipe 5, and industry water flow pipe 5 is connected with well 12, work
Valve 11 is set on industry water flow pipe 5.By providing industry water for water-jet pump, the temperature of the working water in water-jet pump is lower,
The vacuum that water jet air ejector is set up is more preferably, higher to the suction capactity of gas in condenser.
The first air hose 4 and the second air hose 4 being arranged in parallel is connected between first pipeline 9 and condenser 1, first is empty
Valve 11 is respectively provided with the air hose 4 of tracheae 4 and second.Water jet air ejector is via the first air hose and the second air hose to condenser
Vacuumized, be two flow process twice control surface formulas by condenser, aspirated from condenser both sides, the non-condensing gas of extraction
Body and air effect are good, which reduces the cooling gas of unit area, and good cooling results, the vacuum of condenser is all right.
The arranged direction of the first entrance of mixing chamber 3 is mutually perpendicular to the arranged direction of the second entrance of mixing chamber 3.
Non-return valve is set at the second entrance of mixing chamber 3.When preventing water jet air ejector from breaking down, working water can be inhaled into
In condenser.
Recirculated water and industry water are circulated to jetting case cooling work water in prior art, so due to the cooling surface of jetting case
Product is big, and flow velocity is slow, extends cool time, it is necessary to substantial amounts of water, and the effect that water temperature is reduced is also poor, maintains the vacuum of condenser
Ability is poor.On the premise of original circulating water pipeline technique does not do any variation, original recirculated water and industry water are removed into jetting
The entrance of case cooling work water, changes on the entrance of water-jet pump, and process conversely, saved the energy, improves vacuum with aforementioned, saves
About water source.
Condenser 1 adopts water-cooled surfaces formula condenser, is mainly made up of the part such as housing, tube bank, hot well, hydroecium.Steamer
The steam discharge of machine enters housing by throat, and water is condensed on cooling tube bundle and hot well is come together in, and is extracted out by condensate pump.Cooling
Water (also known as recirculated water) enters cooling tube bundle and discharges from outlet hydroecium from import hydroecium.To ensure during steam condensation in condenser
Interior maintenance high vacuum and good heat-transfer effect, is furnished with water jet air ejector, it constantly by the air leak in condenser and its
He extracts out incondensable gas.
The working water Jing hydroecium with certain pressure come from water-jet pump enters nozzle.Nozzle turns the pressure energy of press water
It is changed into speed energy, current are projected at a high speed from nozzle, makes mixing interior generation high vacuum, extracts vapour, gas mixing in condenser out
Thing, together into anemostat, water velocity slows down, and pressure gradually rises, and is finally spread with the pressure venting for being slightly above atmospheric pressure
Pipe.
The work coolant-temperature gage of water jet air ejector is lower, and the vacuum that water jet air ejector is set up is better, and suction capactity is stronger, coagulates
The vacuum of vapour device is higher, otherwise suction capactity is weaker, and the vacuum of condenser is lower.
Need to supplement industry water (well water) in a large number before transformation, and only need recirculated water just to reduce work after transforming
The purpose of water temperature, so saves per hour water for industrial use 10-15 side, and economic benefit is significantly improved.
Especially heating period in the winter time, effect is significant.When heating in the winter time, then it is also to be directly connected to jetting to put into industry water
Pump intake.Condenser retrofit initial vacuum is -0.083MPa, vacuum -0.071MPa during heat supply in winter, true under the same terms after transformation
Space-variant is -0.088MPa, and vacuum -0.076MPa. vacuum often reduces 1KPa during heat supply in winter, and heat consumption about increases by 1.05%, generates electricity
Coa consumption rate about 3.0g/kwh, steam turbine is exerted oneself reduces about 1%, and so, improved effect is obvious.
It is not new to this practicality although the above-mentioned accompanying drawing that combines is described to specific embodiment of the present utility model
The restriction of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Various modifications or deform still in protection model of the present utility model that field technique personnel make by need not paying creative work
Within enclosing.
Claims (10)
1. a kind of cooling system for improving vacuum, is characterized in that, including condenser, and the condenser passes through the first pipeline and penetrates
Water air ejector connects, and the water jet air ejector is also connected with the delivery port of water-jet pump, the water inlet and recirculated water of the water-jet pump
Flow pipe is connected, and recirculated water is directly entered water-jet pump and then reduces the temperature of working water in water-jet pump.
2. cooling system as claimed in claim 1, is characterized in that, the water jet air ejector is connected with jetting case, the jetting
Case is also connected with the water inlet of water-jet pump.
3. cooling system as claimed in claim 2, is characterized in that, the recirculated water flow pipe also passes through the second pipeline and penetrates
Water tank is connected, and on second pipeline valve is arranged.
4. cooling system as claimed in claim 1, is characterized in that, the recirculated water flow pipe is connected with water circulating pump, follows
Ring water pump is connected with cooling tower collecting-tank, and between the recirculated water flow pipe and jetting pump intake valve is provided with.
5. cooling system as claimed in claim 1, is characterized in that, the water inlet of the water-jet pump also with industry water flow pipe
Connection, arranges valve on the industry water flow pipe, the industry water flow pipe is connected with well.
6. cooling system as claimed in claim 1, is characterized in that, between first pipeline and condenser in parallel setting is connected with
The first air hose put and the second air hose, on first air hose and the second air hose valve is respectively provided with.
7. cooling system as claimed in claim 2, is characterized in that, the water jet air ejector includes mixing chamber, the mixing chamber
It is connected with diffuser, the diffuser is connected with jetting case.
8. cooling system as claimed in claim 7, is characterized in that, the first entrance of the mixing chamber and the delivery port of water-jet pump
Connection, the second entrance of the mixing chamber and the first pipeline connection.
9. cooling system as claimed in claim 8, is characterized in that, the arranged direction of the first entrance and the cloth of second entrance
Put direction to be mutually perpendicular to.
10. cooling system as claimed in claim 8, is characterized in that, non-return valve is arranged at the second entrance of the mixing chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621224255.7U CN206146232U (en) | 2016-11-14 | 2016-11-14 | Cooling system of gas clean up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621224255.7U CN206146232U (en) | 2016-11-14 | 2016-11-14 | Cooling system of gas clean up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206146232U true CN206146232U (en) | 2017-05-03 |
Family
ID=58626261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621224255.7U Expired - Fee Related CN206146232U (en) | 2016-11-14 | 2016-11-14 | Cooling system of gas clean up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206146232U (en) |
-
2016
- 2016-11-14 CN CN201621224255.7U patent/CN206146232U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170503 Termination date: 20191114 |