CN104481896A - 2BV water ring vacuum pump device and process - Google Patents
2BV water ring vacuum pump device and process Download PDFInfo
- Publication number
- CN104481896A CN104481896A CN201410686781.4A CN201410686781A CN104481896A CN 104481896 A CN104481896 A CN 104481896A CN 201410686781 A CN201410686781 A CN 201410686781A CN 104481896 A CN104481896 A CN 104481896A
- Authority
- CN
- China
- Prior art keywords
- water
- gas
- conduction oil
- heat exchanger
- vacuum pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
- F04C19/004—Details concerning the operating liquid, e.g. nature, separation, cooling, cleaning, control of the supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2210/00—Fluid
- F04C2210/10—Fluid working
- F04C2210/1094—Water
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a 2BV water ring vacuum pump device and a process. The 2BV water ring vacuum pump device comprises a heat conduction oil storing tank, a heat exchanger, a water ring vacuum pump, a gas-liquid separator and a light component collecting tank, an outlet end of the heat conduction oil storing tank is connected with an inlet end of the heat exchanger, an outlet end of the heat exchanger is connected with an inlet end of the water ring vacuum pump, the top of the water ring vacuum pump is connected with an air inlet and an air vent, the air vent is connected with the gas-liquid separator, an air outlet is arranged at the top of the gas-liquid separator, a liquid outlet is arranged at the bottom of the gas-liquid separator, the air outlet is connected with the light component collecting tank, and the liquid outlet is connected with the inlet end of the heat exchanger. According to the 2BV water ring vacuum pump device and the process, heat conduction oil is used as a working medium of the water ring vacuum pump so that the water ring vacuum pump can be applied to a water-soluble gas vacuum system, the application range of the water ring vacuum pump is widened, generation of large quantities of sewage can be avoided, the environmental protection effects can be improved, the requirement of cooling by continuously adding of working water to an original water ring vacuum pump can be lowered by the aid of storing, cold treatment and separation systems, and water resource consumption can be lowered through energy recycling.
Description
Technical field
The present invention relates to chemical field, specifically, particularly relate to a kind of 2BV Water-ring vacuum pump-unit and technique.
Background technique
Water ring vaccum pump is a kind of coarse vacuum pump, initial as self-priming water pump, then gradually for numerous industrial departments such as oil, chemical industry, machinery, light industry, medicine, water ring vaccum pump realizes air-breathing, compression and exhaust by the change of pump chamber, is variable-capacity vacuum pump.At present, the water ring vaccum pump medium generally used is water, in the course of the work because pump housing acting produces heat, a part of working water is made to be vaporizated into water vapour, the gas sucked together with the pump housing is discharged outside the pump housing, need in whole working procedure constantly to provide working water to the pump housing, with cooling and the working water of replenish lost, cause consumption and the waste of water resources, and this type of vacuum pump be used for water-soluble gas vacuum system time, water-soluble gas easily dissolves by working water, thus cannot by outside effective for water-soluble gas excavationg pump, and be mixed with water-soluble gas in working water, produce a large amount of sewage, cause environmental pollution problem, cannot meet the requirement of environmental protection, add the cost of water treatment simultaneously.
Summary of the invention
The invention discloses a kind of 2BV Water-ring vacuum pump-unit and technique, cannot be applicable to water-soluble gas vacuum system for solving water ring vaccum pump in conventional art, produce large amount of sewage, environmental protection effect is low, the problem that cost of water treatment is high.
The present invention is achieved by the following technical solutions:
A kind of 2BV Water-ring vacuum pump-unit, comprise conduction oil storage tank, heat exchanger, water ring vaccum pump, gas-liquid separator and light component collecting tank, described conduction oil tank top is provided with evacuating device, described conduction oil outlet end connects heat exchanger entrance point by pipeline, the lower end of the end socket of described heat exchanger side, upper end is corresponding is respectively provided with circulating water intake, circulating water outlet, described heat exchanger exit end connects water ring vaccum pump entrance point by pipeline, the top of described water ring vaccum pump is connected to suction tude and outlet pipe, described suction tude top is provided with suction port, described outlet pipe top is provided with relief opening, described relief opening connects gas-liquid separator by pipeline, the top of described gas-liquid separator is provided with steam outlet pipe, bottom is provided with liquid outlet, described liquid outlet is connected with described heat exchanger entrance point by pipeline, described steam outlet pipe top is provided with air outlet, described air outlet is connected with light component collecting tank by pipeline, the top of described light component collecting tank is provided with evacuating device, the height of described heat exchanger is lower than gas-liquid separator height.
A kind of 2BV Water-ring vacuum pump technique, comprises stocking system, cold treatment system, pump work system, piece-rate system and collecting system, comprises the steps:
1) filling heat-conductive oil in conduction oil storage tank, open conduction oil outlet end valve door, conduction oil is through pipeline inflow heat exchanger, and one end of heat exchanger passes into circulating water as cooling medium, the heat of conduction oil is passed to circulating water, makes the temperature of conduction oil drop to technological process set quota;
2) conduction oil through cryogenic treatment enters water ring vaccum pump by pipeline, conduction oil replaces the working water in former water ring vaccum pump, become new working medium, start water ring vaccum pump, vane rotary in pump, conduction oil is by centrifugal action, formed and rotate oil ring, the blade of impeller and oil ring form enclosed space, and along with enclosed space expands gradually, space internal pressure reduces, water-soluble gas enters from Water-ring vacuum pump steam inlet, along with enclosed space reduces gradually, space internal pressure increases, and water-soluble gas is discharged from the relief opening of Nash hytor;
3) conduction oil is because of acting heating formation lime set, discharge from Water-ring vacuum pump exhaust inlet together with water-soluble gas, gas-liquid separator is entered by pipeline, after treatment, water-soluble gas is discharged from the air outlet of gas-liquid separator, enters light component collecting tank by pipeline, and conduction oil is discharged from the liquid outlet of gas-liquid separator lower end, through pipeline inflow heat exchanger, recycled by cooling;
4) when water-soluble gas is separated in gas-liquid separator with conduction oil, part aqueous gas is discharged with the liquid outlet of conduction oil through gas-liquid separator lower end, conduction oil storage tank is entered into by pipeline, start the evacuating device on conduction oil storage tank, by gas emptying from conduction oil storage tank, and the water-soluble gas collected in light component collecting tank as used in recirculation, can start the evacuating device at light component collecting tank top, release water-soluble gas.
Compared with prior art, the invention has the beneficial effects as follows:
Conduction oil is replaced the working water in former water ring vaccum pump by the present invention, become new working medium, when this technique is used in water-soluble gas vacuum system, conduction oil stable chemical nature, there is the performance of heat resistanceheat resistant cracking and chemical oxidation, prevent water-soluble gas to be dissolved in conduction oil, avoid producing a large amount of work sewage, improve environmental protection effect; Realized the cooling cryogenic treatment of conduction oil by heat exchanger, and former water ring vaccum pump needs constantly interpolation working water to lower the temperature, and avoids the waste of great lot of water resources, improves the working efficiency of water ring vaccum pump simultaneously; And by gas-liquid separator, water-soluble gas and conduction oil are separated, collect water-soluble gas by light component collecting tank, conduction oil flows into conduction oil storage tank again, achieves the cycling and reutilization of the energy, pollution-free generation; And structure of the present invention is simply easy to operation, significantly reduces cost of water treatment, has higher economic benefit.
Accompanying drawing explanation
Accompanying drawing is the schematic diagram of the embodiment of the present invention.
In figure: 1, conduction oil storage tank; 2, heat exchanger; 3, water ring vaccum pump; 4, gas-liquid separator; 5, light component collecting tank; 6, evacuating device; 7, heat exchanger entrance point; 8, circulating water intake; 9, circulating water outlet; 10, heat exchanger exit end; 11, water ring vaccum pump entrance point; 12, suction tude; 13, outlet pipe; 14, suction port; 15, relief opening; 16, steam outlet pipe; 17, liquid outlet; 18, air outlet.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described:
A kind of 2BV Water-ring vacuum of the present invention pump-unit, comprise conduction oil storage tank 1, heat exchanger 2, water ring vaccum pump 3, gas-liquid separator 4 and light component collecting tank 5, described conduction oil storage tank 1 top is provided with evacuating device 6, described conduction oil storage tank 1 outlet end connects heat exchanger entrance point 7 by pipeline, the lower end of the end socket of described heat exchanger 2 side, upper end is corresponding is respectively provided with circulating water intake 8, circulating water outlet 9, described heat exchanger exit end 10 connects water ring vaccum pump entrance point 11 by pipeline, the top of described water ring vaccum pump 3 is connected to suction tude 12 and outlet pipe 13, described suction tude 12 top is provided with suction port 14, described outlet pipe 13 top is provided with relief opening 15, described relief opening 15 connects gas-liquid separator 4 by pipeline, the top of described gas-liquid separator 4 is provided with steam outlet pipe 16, bottom is provided with liquid outlet 17, described liquid outlet 17 is connected with described heat exchanger entrance point 7 by pipeline, described steam outlet pipe 16 top is provided with air outlet 18, described air outlet 18 is connected with light component collecting tank 5 by pipeline, the top of described light component collecting tank 5 is provided with evacuating device 6, the height at described heat exchanger 2 top is lower than the height of gas-liquid separator 4, reduce conduction oil with this and enter heat exchanger 2 heat resistances and flow resistance from gas-liquid separator 4.
A kind of 2BV Water-ring vacuum of the present invention pump technique, comprises stocking system, cold treatment system, pump work system, piece-rate system and collecting system, comprises the steps:
1) in conduction oil storage tank 1, a certain amount of conduction oil is injected, open conduction oil storage tank 1 outlet end valve, conduction oil flow to heat exchanger entrance point 7 through pipeline and enters in heat exchanger 2, open the circulating water intake 8 of heat exchanger 2 end socket lower end, pass into circulating water as cooling medium, conduction oil is hot fluid, partial heat is passed to the circulating water as cold fluid, the temperature of conduction oil is made to drop to technological process set quota, open the circulating water outlet 9 of heat exchanger 2 end socket upper end simultaneously, discharge the circulating water after heating up;
2) conduction oil through cryogenic treatment flows out from heat exchanger exit end 10, water ring vaccum pump entrance point 11 is flow to by pipeline, conduction oil replaces the working water in former water ring vaccum pump 3, become new working medium, start water ring vaccum pump 3, vane rotary in pump, conduction oil is by centrifugal action, formed and rotate oil ring, the blade of impeller and oil ring form enclosed space, along with enclosed space expands gradually, space internal pressure reduces, water-soluble gas is sucked through suction tude 12 from suction port 14 by water ring vaccum pump 3, along with enclosed space reduces gradually, space internal pressure increases, water-soluble gas is discharged from the relief opening 15 of water ring vaccum pump 3,
3) part conduction oil is because of acting heating formation lime set, discharge from water ring vaccum pump 3 relief opening 15 together with water-soluble gas, gas-liquid separator 4 is entered by pipeline, because water-soluble gas is different with the proportion of conduction oil, and the flow velocity of relief opening 15 forms vortex, heavy conduction oil is made to deposit to the bottom of gas-liquid separator 4, the water-soluble gas that proportion is little then rises to the top of gas-liquid separator 4, water-soluble gas flows along the steam outlet pipe 16 at gas-liquid separator 4 top, discharge through air outlet 18, light component collecting tank 5 is entered by pipeline, conduction oil is discharged from the liquid outlet 17 of gas-liquid separator 4 bottom, through pipeline inflow heat exchanger 2, recycled by cooling,
4) when water-soluble gas is separated in gas-liquid separator 4 with conduction oil, part aqueous gas is discharged with the liquid outlet 17 of conduction oil through gas-liquid separator 4 bottom, conduction oil storage tank 1 is entered into by pipeline, start the evacuating device 6 on conduction oil storage tank top, by water-soluble gas emptying from conduction oil storage tank 1, and the water-soluble gas collected in light component collecting tank 5 as used in recirculation, can start the evacuating device 6 at light component collecting tank 5 top, release water-soluble gas.
The present invention devises a kind of 2BV Water-ring vacuum pump-unit with conduction oil storage tank, heat exchanger, gas-liquid separator and light component collecting tank and technique, the working water in former water ring vaccum pump is replaced by conduction oil, this device and technique is made to be applicable to water-soluble gas vacuum system, avoid producing a large amount of work sewage, improve environmental protection effect, increase storage, cryogenic treatment, separation, collecting system simultaneously, reducing former water ring vaccum pump needs constantly interpolation working water to carry out the demand cooled, and reduces the consumption to water resources by the cycling and reutilization of the energy.
In sum, be only preferred embodiment of the present invention, not be used for limiting scope of the invention process, all equalizations of doing according to shape, structure, feature and the spirit described in the claims in the present invention scope change and modify, and all should be included in right of the present invention.
Claims (7)
1. a 2BV Water-ring vacuum pump-unit, comprise conduction oil storage tank (1), heat exchanger (2), water ring vaccum pump (3), gas-liquid separator (4) and light component collecting tank (5), it is characterized in that: described conduction oil storage tank (1) outlet end connects heat exchanger entrance point (7), described heat exchanger exit end (10) connects water ring vaccum pump entrance point (11), the top of described water ring vaccum pump (3) is connected to suction tude (12) and outlet pipe (13), described suction tude (12) top is provided with suction port (14), described outlet pipe (13) top is provided with relief opening (15), described relief opening (15) connects gas-liquid separator (4), the top of described gas-liquid separator (4) is provided with steam outlet pipe (16), bottom is provided with liquid outlet (17), described liquid outlet (17) is connected with described heat exchanger entrance point (7), described steam outlet pipe (16) top is provided with air outlet (18), described air outlet (18) is connected with light component collecting tank (5).
2. a kind of 2BV Water-ring vacuum pump-unit according to claim 1, is characterized in that: described conduction oil storage tank (1) top is provided with evacuating device (6).
3. a kind of 2BV Water-ring vacuum pump-unit according to claim 1, is characterized in that: the lower end of the end socket of described heat exchanger (2) side, upper end is corresponding is respectively provided with circulating water intake (8), circulating water outlet (9).
4. a kind of 2BV Water-ring vacuum pump-unit according to claim 1, is characterized in that: the top of described light component collecting tank (5) is provided with evacuating device (6).
5. a kind of 2BV Water-ring vacuum pump-unit according to claim 1, is characterized in that: the height at described heat exchanger (2) top is lower than the height of gas-liquid separator (4).
6. a 2BV Water-ring vacuum pump technique, comprises stocking system, cold treatment system, pump work system, piece-rate system, collecting system, it is characterized in that, comprise the steps:
1) to filling heat-conductive oil in conduction oil storage tank (1), open conduction oil storage tank (1) outlet end valve, conduction oil enters in heat exchanger (2), open the circulating water intake (8) of heat exchanger (2) end socket lower end, pass into circulating water as cooling medium, the temperature of conduction oil is made to drop to technological process set quota, open the circulating water outlet (9) of heat exchanger (2) end socket upper end simultaneously, discharge the circulating water after heating up;
2) conduction oil through cryogenic treatment flows out from heat exchanger exit end (10), flow to water ring vaccum pump entrance point (11), conduction oil replaces the working water in former water ring vaccum pump (3), become new working medium, start water ring vaccum pump (3), vane rotary in pump, conduction oil is by centrifugal action, formed and rotate oil ring, the blade of impeller and oil ring form enclosed space, along with enclosed space expands gradually, space internal pressure reduces, water-soluble gas is sucked by water ring vaccum pump (3), along with enclosed space reduces gradually, space internal pressure increases, the relief opening (15) of water-soluble gas from water ring vaccum pump (3) is discharged,
3) part conduction oil lime set is discharged from water ring vaccum pump (3) with water-soluble gas, enter gas-liquid separator (4), because water-soluble gas is different with the proportion of conduction oil, and the flow velocity of relief opening (15) forms vortex, heavy conduction oil is made to deposit to the bottom of gas-liquid separator (4), the water-soluble gas that proportion is little then rises to the top of gas-liquid separator (4), water-soluble gas flows along the steam outlet pipe (16) at gas-liquid separator (4) top, discharge through air outlet (18), enter light component collecting tank (5), conduction oil is discharged from the liquid outlet (17) of gas-liquid separator (4) bottom, through pipeline inflow heat exchanger (2), recycled by cooling.
7. a kind of 2BV Water-ring vacuum pump technique according to claim 6, it is characterized in that: when being separated from gas-liquid separator (4), part aqueous gas is discharged with the liquid outlet (17) of conduction oil through gas-liquid separator (4) bottom, enter into conduction oil storage tank (1), start evacuating device (6), by water-soluble gas emptying from conduction oil storage tank (1), and light component collecting tank (5) in collect water-soluble gas as need not recirculation use time, the evacuating device (6) at light component collecting tank (5) top can be started, release water-soluble gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686781.4A CN104481896A (en) | 2014-11-25 | 2014-11-25 | 2BV water ring vacuum pump device and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686781.4A CN104481896A (en) | 2014-11-25 | 2014-11-25 | 2BV water ring vacuum pump device and process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104481896A true CN104481896A (en) | 2015-04-01 |
Family
ID=52756478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410686781.4A Pending CN104481896A (en) | 2014-11-25 | 2014-11-25 | 2BV water ring vacuum pump device and process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104481896A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816435A (en) * | 2017-10-31 | 2018-03-20 | 中冶北方（大连）工程技术有限公司 | A kind of vavuum pump accessory system |
| CN109453533A (en) * | 2018-11-08 | 2019-03-12 | 宿州市皖神面制品有限公司 | A kind of alcohol distillation system and alcohol distillation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100215513A1 (en) * | 2004-03-08 | 2010-08-26 | Jusung Engineering Co., Ltd. | Vacuum pumping system, driving method thereof, apparatus having the same, and method of transferring substrate using the same |
| CN101885992A (en) * | 2010-04-14 | 2010-11-17 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Improved pumping and leading-in device for gasifier to start working |
| CN202441620U (en) * | 2012-02-03 | 2012-09-19 | 太尔胶粘剂(广东)有限公司 | Vacuum set for adhesives production |
| CN202646038U (en) * | 2012-04-28 | 2013-01-02 | 四川科伦药业股份有限公司 | Liquid ring vacuum pump circulating system |
| CN203051163U (en) * | 2012-12-25 | 2013-07-10 | 山东同创生物技术有限公司 | Seal water recovery system of water ring vacuum pump |
-
2014
- 2014-11-25 CN CN201410686781.4A patent/CN104481896A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100215513A1 (en) * | 2004-03-08 | 2010-08-26 | Jusung Engineering Co., Ltd. | Vacuum pumping system, driving method thereof, apparatus having the same, and method of transferring substrate using the same |
| CN101885992A (en) * | 2010-04-14 | 2010-11-17 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Improved pumping and leading-in device for gasifier to start working |
| CN202441620U (en) * | 2012-02-03 | 2012-09-19 | 太尔胶粘剂(广东)有限公司 | Vacuum set for adhesives production |
| CN202646038U (en) * | 2012-04-28 | 2013-01-02 | 四川科伦药业股份有限公司 | Liquid ring vacuum pump circulating system |
| CN203051163U (en) * | 2012-12-25 | 2013-07-10 | 山东同创生物技术有限公司 | Seal water recovery system of water ring vacuum pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107816435A (en) * | 2017-10-31 | 2018-03-20 | 中冶北方（大连）工程技术有限公司 | A kind of vavuum pump accessory system |
| CN109453533A (en) * | 2018-11-08 | 2019-03-12 | 宿州市皖神面制品有限公司 | A kind of alcohol distillation system and alcohol distillation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105782058B (en) | A kind of liquid-ring vacuum pump return water system and water return method | |
| CN111306787B (en) | Semi-open type high-temperature heat pump system and working method thereof | |
| CN205690909U (en) | A kind of water chiller heat pump backheat vacuum energy-saving system | |
| CN103438428A (en) | Closed steam condensate water high-temperature recovery system | |
| CN204402891U (en) | A kind of energy saving and environment friendly Roots vacuum system | |
| CN206378017U (en) | A kind of closed condensate recycling can exhaust steam secondary recovery system | |
| CN104481896A (en) | 2BV water ring vacuum pump device and process | |
| CN205330979U (en) | Dry -type vacuum unit | |
| CN105125078A (en) | Energy-saving type instant-heating water dispenser | |
| CN204574855U (en) | A kind of condenser vacuum extractor | |
| CN210033829U (en) | Electric efficient energy-saving oil ring type vacuum pump unit | |
| CN213335625U (en) | Leading evacuation system that congeals of gravity flow | |
| CN204327529U (en) | A kind of Water-ring vacuum pump-unit | |
| CN210384862U (en) | Urea evaporative condenser evacuating device | |
| CN207568855U (en) | A kind of water-ring vacuum pump cooling device | |
| CN205101237U (en) | Steam turbine vacuum pumping system | |
| CN209442690U (en) | A kind of novel solar seawater desalination device | |
| CN205580235U (en) | Condenser vacuumizing system | |
| CN102269398A (en) | Method and device for recycling steam discharged by boiler | |
| CN205064343U (en) | Water ring vacuum pump water cyclic utilization device | |
| CN217152300U (en) | Water ring vacuum pump environmental protection water-saving system | |
| CN205796626U (en) | Negative-pressure type oily-water seperating equipment | |
| CN205578216U (en) | Environment -friendly vacuum unit | |
| CN203628623U (en) | Closed recovery device for high-temperature condensation water | |
| CN203561229U (en) | Liquid processing device of condenser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150401 |