CN105080742A - Multi-orifice nozzle of vacuum pump - Google Patents
Multi-orifice nozzle of vacuum pump Download PDFInfo
- Publication number
- CN105080742A CN105080742A CN201510611160.4A CN201510611160A CN105080742A CN 105080742 A CN105080742 A CN 105080742A CN 201510611160 A CN201510611160 A CN 201510611160A CN 105080742 A CN105080742 A CN 105080742A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- vavuum pump
- orifice
- shower nozzle
- 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
- 239000007788 liquid Substances 0.000 claims abstract 4
- 229910000906 Bronze Inorganic materials 0.000 claims abstract 2
- 239000010974 bronze Substances 0.000 claims abstract 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract 2
- 239000010935 stainless steel Substances 0.000 claims abstract 2
- 239000007921 spray Substances 0.000 claims 4
- 239000007789 gas Substances 0.000 abstract 3
- 239000000112 cooling gas Substances 0.000 abstract 1
- 239000003595 mist Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a multi-orifice nozzle of a vacuum pump, wherein the nozzle is a multi-step conical nozzle; the multi-step conical nozzle has 3-6 steps; 4-10 orifices are formed in each step; the bottom of the nozzle is an internal thread structure, and the end, near the nozzle, of a liquid pipeline therein is conical; 4 orifices are formed in the top of the nozzle; the orifices are inverted conical orifices; the external of the bottom of the nozzle is a hexagonal structure; and the nozzle is manufactured by bronze or stainless steel. Liquid sprayed by the nozzle is formed to a mist wall through layer-by-layer superposition for cooling gas in a gas inlet, so that steam in the gas is condensed as liquid to increase the gas extracting quantity of the vacuum pump, and the influence of cavitation to the performance and the service life of the vacuum pump is reduced to prolong the service life of the vacuum pump.
Description
Technical field
The present invention relates to a kind of vacuum pump inlet cooling spray, particularly relate to the many orifice shower nozzles of a kind of vavuum pump.
Background technology
Current condenser of power station vacuumizes, medicine is dry, crystallization, chemical industry gas conveying etc. all needs high vacuum, vavuum pump suction be the mixture of incondensable gas and steam, generally the intake air temperature of vavuum pump is all higher, water vapour content is also larger simultaneously, if the common content of water chiller incondensable gas and the content of steam are 1:2; Indirect air cooling unit 1:3; Direct Air-cooled Unit is 1:3.5; Often the temperature of vacuum pump inlet mist is all higher, as indirect air cooling, Direct Air-cooled Unit intake air temperature reach about 75 DEG C summer; Water chiller then reaches about 65 DEG C.
Vavuum pump adopts liquid to seal, and liquid requires that when sealing its temperature is all lower, and it plays the effect of transferring energy and sealing in vavuum pump; After the mist of heat enters vavuum pump, according to law of conservation of energy, the gaseous mixture cognition of high temperature transfers heat to vavuum pump sealing water, thus causes sealing water temperature sharply to rise, it directly affects the suction performance of vavuum pump, also can bring out vavuum pump simultaneously and produce cavitation.And according to " water-ring vacuum pump product quality is graded ", " water-ring vacuum pump gasometric determination method " regulation: intake air temperature, the sealing water temperature of vavuum pump are very large on vavuum pump impact, according to existing experiment conclusion: intake air temperature often raises 10 DEG C, it causes sealing water temperature to rise about about 3 DEG C; Vavuum pump suction performance reduces about 5% simultaneously, and along with the rising of sealing water temperature, the probability that vavuum pump produces cavitation is higher.
Larger by the content of steam in the gas vacuumized of some industry, if can effectively allow this part steam condense into water, vavuum pump just can aspirate more gas within the identical time, thus reach energy-saving and cost-reducing object, also reduce the probability that vavuum pump produces cavitation simultaneously, thus the extension device life-span, ensure the safety of equipment.
At present both at home and abroad only minority enterprises pay attention to the rising of vavuum pump seal fluid temperature on the impact of the vacuum capability of vavuum pump, it will introduce the suction side of vavuum pump through the cooled sealing water of heat exchanger, utilize principle of differential pressure to form cooling surface, the size of the water yield is relevant with negative suction, it can according to the automatic regulating pondage size of the vacuum magnitude of vavuum pump, but the design of its shower nozzle is by arranging two foursquare spray orifices or rectangular spray orifice in shower nozzle end, because your nozzle hole number is few, and spray orifice is only at the top of shower nozzle, the cooling fluid of ejection can not form an overall covering to air inlet, its cooling-down effect is limited, therefore the effect of water vapor condensation neither be fine.
Summary of the invention
The object of the present invention is to provide the many orifice shower nozzles of a kind of vavuum pump, by this shower nozzle cooling fluid sprayed and cooling fluid is become and form 360 ° of cones around shower nozzle, thus the water smoke wall of all standing cools the gas passed through, and steam major part is wherein condensed into liquid.
The many orifice shower nozzles of a kind of vavuum pump, comprise, nozzle connecting device, spray orifice and shower nozzle, described shower nozzle is multistage Conic nozzle.
Described multistage Conic nozzle is 3 ~ 6 rank, and every rank spray orifice is 4 ~ 10.
Be female thread structure bottom described shower nozzle, its internal liquid pipeline is conical near nozzle end.
Described shower nozzle top is provided with 4 spray orifices.
Described spray orifice is turbination spray orifice.
Described shower nozzle bottom external is hexagon or circular configuration.
Described shower nozzle is made up of bronze or stainless steel.
Beneficial effect of the present invention is: (1) the present invention is by improving prior art, its shower nozzle is uniformly distributed along tapered wall, thus thus make air-inlet of vacuum pump pipeline place form the mist wall that is made up of cooling fluid of one side, making the gas entering into vavuum pump through inlet port all have to pass through one process for cooling is liquid by water vapor condensation wherein.
(2) by setting up cooling device to vavuum pump, make vavuum pump sealing fluid carry out circulating cooling, work under being conducive to making vavuum pump to remain on a lower temperature, and temperature fluctuation is little, thus the vacuum capability of vavuum pump is tended towards stability, and affect less by cavitation.
Accompanying drawing explanation.
Fig. 1, shower nozzle cross section.
Fig. 2, shower nozzle top view.
Fig. 3, shower nozzle upward view.
In figure: 1 shower nozzle sidewall, 2 shower nozzle side spray orifices, 3 shower nozzle top orifice, 4 shower nozzle internal water channels, 5 shower nozzle inner threads.
Specific embodiment
Shower nozzle bottom external of the present invention is designed to orthohexagonal structure, indoor design is circular strip helicitic texture, facilitate the installation and removal of shower nozzle and nozzle connecting device like this, the main part of shower nozzle is designed to taper shape, its top is circular, pyramidal portion is provided with the spray orifice on 3 ~ 6 rank along cone wall, every rank spray orifice contains 8 ~ 16 spray orifices, spray orifice shape is turbination, the liquid of such spray orifice ejection just can form the thinner taper mist of particle diameter, secondly the top of shower nozzle is provided with 4 spray orifices, it sprays 4 taper mists to shower nozzle front, when shower nozzle runs, its all spray orifice sprays taper mist together, and formed between each taper mist and taper mist around and intersect thus form a mist wall, the distributor that spraying wall enters into vavuum pump is had to pass through after the gas of air inlet oily water steam enters into vavuum pump, and the liquid that shower nozzle gushes out is through the liquid of cooling, its temperature is lower than the temperature of air inlet suction gas, when the two meets, steam in the gas that air inlet enters just is condensed into rapidly liquid and sedimentation.
Principle of the present invention is the pressure by being greater than air inlet side due to the pressure in vavuum pump condensing unit, under the effect of pressure reduction, liquid in condensing unit can automatically through shower nozzle ejection taper (entity) mist, taper mist cools gas and steam major part is wherein condensed into liquid, for vavuum pump, the energy transferring of gas is to after seal fluid, rising known from experience by sealing fluid, but vavuum pump condensing unit can carry out circulating cooling to sealing fluid, therefore the temperature of sealing fluid can remain in a dynamic balance, thus make vavuum pump working stability, the probability that cavitation erosion occurs reduces, extend the service life of vavuum pump.
Specific embodiments of the invention not limit the scope of the invention, and anyly all belong to protection scope of the present invention to the equivalence replacement done by the present invention or the change of part-structure.
Claims (7)
1. the many orifice shower nozzles of vavuum pump, is characterized in that: described shower nozzle is multi-ladder Conic nozzle.
2. many orifice shower nozzles of a kind of vavuum pump according to claim 1, it is characterized in that: described multistage Conic nozzle is 3 ~ 6 rank, every rank spray orifice is 4 ~ 10.
3. many orifice shower nozzles of a kind of vavuum pump according to claim 2, is characterized in that: be female thread structure bottom described shower nozzle, and its internal liquid pipeline be taper shape near nozzle end.
4. many orifice shower nozzles of a kind of vavuum pump according to claim 3, is characterized in that: described shower nozzle top is provided with 4 spray orifices.
5. the many orifice shower nozzles of a kind of vavuum pump according to 4, is characterized in that: described spray orifice is turbination spray orifice.
6. according to the many orifice shower nozzles of any one vavuum pump described in claim 1 ~ 5, it is characterized in that: described shower nozzle bottom external is hexagon or circular configuration.
7. many orifice shower nozzles of a kind of vavuum pump according to claim 1, is characterized in that: described shower nozzle is made up of bronze or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510611160.4A CN105080742A (en) | 2015-09-24 | 2015-09-24 | Multi-orifice nozzle of vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510611160.4A CN105080742A (en) | 2015-09-24 | 2015-09-24 | Multi-orifice nozzle of vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105080742A true CN105080742A (en) | 2015-11-25 |
Family
ID=54562602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510611160.4A Pending CN105080742A (en) | 2015-09-24 | 2015-09-24 | Multi-orifice nozzle of vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105080742A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106416938A (en) * | 2016-10-11 | 2017-02-22 | 榆林学院 | Double control garden syringe with novel nozzle |
| CN109310236A (en) * | 2016-03-17 | 2019-02-05 | 恒鹏设备有限公司 | Cooking system with cleaning element and spreader |
| CN113144399A (en) * | 2021-01-28 | 2021-07-23 | 何战战 | Medical spraying device for scald treatment |
| CN113617762A (en) * | 2021-06-25 | 2021-11-09 | 上海市政工程设计研究总院（集团）有限公司 | Portable automatic cleaning measuring cylinder device special for soil engineering and use method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2032098U (en) * | 1988-06-10 | 1989-02-08 | 煤炭科学研究院上海研究所 | Cone type spray nozzle of sprayer with multi conduit |
| CN2443777Y (en) * | 2000-09-08 | 2001-08-22 | 郎焕普 | Multidirectional atomizing spray head |
| CN202876974U (en) * | 2012-09-28 | 2013-04-17 | 天津渤天化工有限责任公司 | Multilayer annular shower nozzle |
-
2015
- 2015-09-24 CN CN201510611160.4A patent/CN105080742A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2032098U (en) * | 1988-06-10 | 1989-02-08 | 煤炭科学研究院上海研究所 | Cone type spray nozzle of sprayer with multi conduit |
| CN2443777Y (en) * | 2000-09-08 | 2001-08-22 | 郎焕普 | Multidirectional atomizing spray head |
| CN202876974U (en) * | 2012-09-28 | 2013-04-17 | 天津渤天化工有限责任公司 | Multilayer annular shower nozzle |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109310236A (en) * | 2016-03-17 | 2019-02-05 | 恒鹏设备有限公司 | Cooking system with cleaning element and spreader |
| CN109310236B (en) * | 2016-03-17 | 2021-08-24 | 恒鹏设备有限公司 | Cooking system with cleaning element and spreader |
| US11925294B2 (en) | 2016-03-17 | 2024-03-12 | Henny Penny Corporation | Cooking systems with washing elements and spreader bar |
| US12490863B2 (en) | 2016-03-17 | 2025-12-09 | Henny Penny Corporation | Cooking systems with spreader bar |
| CN106416938A (en) * | 2016-10-11 | 2017-02-22 | 榆林学院 | Double control garden syringe with novel nozzle |
| CN106416938B (en) * | 2016-10-11 | 2022-08-23 | 榆林学院 | Double-control flower watering device with novel spray head |
| CN113144399A (en) * | 2021-01-28 | 2021-07-23 | 何战战 | Medical spraying device for scald treatment |
| CN113617762A (en) * | 2021-06-25 | 2021-11-09 | 上海市政工程设计研究总院（集团）有限公司 | Portable automatic cleaning measuring cylinder device special for soil engineering and use method |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151125 |
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| RJ01 | Rejection of invention patent application after publication |