CN110639870A - Gas-liquid mixing flushing system - Google Patents
Gas-liquid mixing flushing system Download PDFInfo
- Publication number
- CN110639870A CN110639870A CN201810667653.3A CN201810667653A CN110639870A CN 110639870 A CN110639870 A CN 110639870A CN 201810667653 A CN201810667653 A CN 201810667653A CN 110639870 A CN110639870 A CN 110639870A
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- Prior art keywords
- gas
- liquid
- supply pipeline
- output
- pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/024—Cleaning by means of spray elements moving over the surface to be cleaned
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
Abstract
The invention discloses a gas-liquid mixing flushing system, which comprises a liquid supply pipeline, a gas supply pipeline and an output pipeline, wherein the liquid supply pipeline is connected with the gas supply pipeline; the liquid medium output by the liquid medium supply pipeline is mixed with the gas output by the gas supply pipeline to form a liquid medium containing bubbles, and the liquid medium is output through the output pipeline and is used as a workpiece flushing liquid; the pressure of the liquid medium output by the liquid supply pipeline is more than 1.5 bar; the pressure of the gas output by the gas supply line is greater than 1.5 bar. The gas-liquid mixing flushing system can effectively remove residual particles in the workpiece.
Description
Technical Field
The invention relates to a workpiece cleaning technology, in particular to a gas-liquid mixing flushing system.
Background
Precision devices with very high machining precision often require cleaning to remove particles adhering thereto.
The oil injector is a precision device with very high processing precision, is one of core components of a low-pressure engine management system, and needs very high anti-blocking and anti-pollution capacity. Most of the complaints of the common spray of the oil injector are caused by particles, and the particles are rarely found in the internal leakage part.
Particles below a maximum length of 200um can result in small leaks from the injector, and particles above a maximum length of 200um can result in frequent spraying from the injector. The oil injector needs to complete multiple sealing leakage tests before leaving the factory, but is limited by the capability of a liquid flushing station of an oil injector production line (flushing mode, flushing time, flushing pressure and the like), all particles entering the oil injector cannot be guaranteed to be flushed onto a sealing surface or out of the oil injector, the particles are changed at a client after leaving the factory, and the oil injector becomes a constant-spraying piece. The frequent-spraying sites of the fuel injectors are generally in a main engine plant, and the defects can cause abnormal shaking of the engine.
Due to the unique design of the fuel injector, as shown in fig. 1, dead corners exist at steps such as joints among a valve seat 75, a needle valve pipe 74, an armature 73, a connecting rod 72 and an adjusting sleeve, and pure liquid media such as oil for detecting CH20V3 (English name CH20, which is a mixture of normal alkane, isoparaffin, cycloparaffin, aromatic hydrocarbon and the like, is relatively stable and has certain toxicity) cannot effectively flush out particles at the parts.
Disclosure of Invention
The invention aims to provide a gas-liquid mixing flushing system which can effectively remove residual particles in a workpiece.
In order to solve the technical problem, the invention provides a gas-liquid mixing flushing system, which comprises a liquid supply pipeline, a gas supply pipeline and an output pipeline;
the liquid medium output by the liquid medium supply pipeline is mixed with the gas output by the gas supply pipeline to form a bubble-containing liquid medium, and the bubble-containing liquid medium is output through the output pipeline and is used as a workpiece flushing liquid;
the pressure of the liquid medium output by the liquid supply pipeline is more than 1.5 bar;
the pressure of the gas output by the gas supply pipeline is more than 1.5 bar.
Preferably, the pressure of the liquid medium output by the liquid supply line is greater than the pressure of the gas output by the gas supply line.
Preferably, the pressure of the gas output by the gas supply line is 1.05 to 1.2 times of the pressure of the liquid medium output by the liquid supply line.
Preferably, the pressure of the gas output by the gas supply line is 1.09 times, 1.1 times or 1.11 times of the pressure of the liquid medium output by the liquid supply line.
Preferably, the pressure of the gas output by the gas supply line is 6.5 bar;
the pressure of the liquid medium output from the liquid supply line was 6 bar.
Preferably, the liquid medium output by the liquid medium supply pipeline and the gas output by the gas supply pipeline are mixed to form the liquid medium containing bubbles, and the bubbles account for 5 to 15 percent of the volume of the liquid medium.
Preferably, the liquid medium output by the liquid medium supply pipeline and the gas output by the gas supply pipeline are mixed to form a liquid medium containing bubbles, and the bubbles account for 9%, 10% or 11% of the volume of the liquid medium.
Preferably, the workpiece is a fuel injector, a filter element, a valve sleeve, an electromagnetic valve core, a gear or a shaft.
Preferably, the liquid medium is CH20V3 detection oil, n-heptane, gasoline or diesel oil;
the gas is air, carbon dioxide or nitrogen.
Preferably, the liquid supply pipeline is provided with an electromagnetic valve, a liquid filter and a liquid pressure gauge;
the electromagnetic valve is used for opening or closing the liquid supply pipeline;
the liquid filter is used for filtering impurities in the liquid medium;
the liquid pressure gauge is used for detecting the pressure of the liquid medium output by the liquid supply pipeline.
Preferably, the gas supply pipeline is provided with a pressure regulating valve and a gas one-way valve in sequence from an inlet to an outlet;
the pressure regulating valve is used for regulating the pressure of the gas output by the gas supply pipeline;
the high-pressure end of the gas one-way valve is arranged on the side of the pressure regulating valve.
Preferably, a ball valve and a pressure booster are arranged on the gas supply pipeline from the inlet to the pressure regulating valve;
the pressure booster is used for increasing the gas pressure in the gas supply pipeline.
Preferably, a metering speed regulating valve and a gas pressure gauge are arranged on the gas supply pipeline between the pressure regulating valve and the inlet of the gas one-way valve;
a gas filter is arranged on the gas supply pipeline from the outlet to the gas one-way valve;
the metering speed regulating valve is used for detecting and regulating the gas output of the gas supply pipeline;
the gas filter is used for filtering pollution particles in the gas.
Preferably, the output pipeline is communicated with a low-pressure end of an observation check valve;
and the high-pressure end of the observation check valve is provided with a quick-plugging port.
The gas-liquid mixed flushing system takes the liquid medium containing bubbles formed by mixing the high-pressure liquid medium and the high-pressure gas as the workpiece flushing liquid, the mixed gas is suspended in the liquid medium in a bubble form, the bubbles can be understood as 'springs' in the liquid medium, the bubbles can be unstable due to local pressure fluctuation of the flowing workpiece flushing liquid, when the bubbles flow from local low pressure to high pressure, the bubbles can be suddenly smashed, local high pressure and high temperature are formed in the process of breaking and disappearing, metal particles, particles and the like nearby are pushed, strong vibration and irregular noise are generated, the irregular vibration is utilized to flush the workpiece, and the residual particles in the workpiece can be effectively removed.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the present invention are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a fuel injector configuration;
fig. 2 is a schematic structural diagram of an embodiment of the gas-liquid mixed flushing system of the present invention.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 2, the gas-liquid mixed flushing system includes a liquid supply pipeline, a gas supply pipeline and an output pipeline;
the liquid medium output by the liquid medium supply pipeline is mixed with the gas output by the gas supply pipeline to form a bubble-containing liquid medium, and the bubble-containing liquid medium is output through the output pipeline and is used as a workpiece flushing liquid;
the pressure of the liquid medium output by the liquid supply pipeline is more than 1.5 bar;
the pressure of the gas output by the gas supply pipeline is more than 1.5 bar.
According to the gas-liquid mixed flushing system, the liquid medium containing the bubbles formed by mixing the high-pressure liquid medium and the high-pressure gas is used as the workpiece flushing liquid, the mixed gas is suspended in the liquid medium in the form of the bubbles, the bubbles can be understood as springs in the liquid medium, the bubbles are unstable due to local pressure fluctuation of the flowing workpiece flushing liquid, when the bubbles flow from local low pressure to high pressure, the bubbles can be suddenly smashed, local high pressure and high temperature are formed in the process of breaking and disappearing, metal particles, particles and the like nearby are pushed, strong vibration and irregular noise occur, the workpieces are flushed by the irregular vibration, and the residual particles in the workpieces can be effectively removed.
Example two
According to the gas-liquid mixed flushing system of the first embodiment, the pressure of the liquid medium output by the liquid supply pipeline is greater than the pressure of the gas output by the gas supply pipeline.
Preferably, the pressure of the gas output by the gas supply line is 1.05 to 1.2 times of the pressure of the liquid medium output by the liquid supply line. For example, the pressure of the gas output by the gas supply line is 1.09 times, 1.1 times, or 1.11 times the pressure of the liquid medium output by the liquid supply line.
Preferably, the pressure of the gas output by the gas supply line is 6.5bar, and the pressure of the liquid medium output by the liquid supply line is 6 bar.
EXAMPLE III
Based on the gas-liquid mixed flushing system of the first embodiment, the liquid medium output by the liquid medium supply pipeline is mixed with the gas output by the gas supply pipeline to form the liquid medium containing the bubbles, and the bubbles account for 5 to 15 percent of the volume of the liquid medium.
Preferably, the liquid medium output by the liquid medium supply pipeline and the gas output by the gas supply pipeline are mixed to form a liquid medium containing bubbles, and the bubbles account for 9%, 10% or 11% of the volume of the liquid medium.
Preferably, the workpiece is a fuel injector, a filter element, a valve sleeve, an electromagnetic valve core, a gear or a shaft and the like.
Preferably, the liquid medium is CH20V3 detection oil (English name CH20, which is a mixture of normal alkane, isoparaffin, cycloparaffin, aromatic hydrocarbon and the like, and is relatively stable and has certain toxicity) or n-heptane, gasoline, diesel oil and the like;
the gas may be air, carbon dioxide CO2, nitrogen N2, or the like;
when the workpiece is an oil sprayer, the gas-liquid mixed workpiece flushing liquid output by the output pipeline of the gas-liquid mixed flushing system utilizes cavitation in gas-liquid mixed fluid to increase the instability of the oil sprayer flushing liquid and simulate the vibration of the oil sprayer on an engine to the flushing liquid, the irregular vibration is utilized to flush the oil sprayer, so that particles can be pushed to be discharged from the oil sprayer or to a valve seat sealing surface, the residual particles below the maximum length of 200um in the oil sprayer are reduced, the probability that the particles above the maximum length of 200um are flushed to the sealing surface is improved, the flushing effect of a liquid medium of a production line is enhanced, and the probability that a normally-sprayed oil sprayer flows. Experiments prove that by adopting the gas-liquid mixing flushing system, the flushing maximum length of particles below 200um is improved by 19%, the pipeline cleanliness is better improved, and the probability that large particles are flushed out of the sealing surface of the oil sprayer is improved.
Example four
According to the gas-liquid mixing flushing system of the first embodiment, as shown in fig. 2, the liquid supply pipeline is provided with a solenoid valve 11, a liquid filter 12 and a liquid pressure gauge 13;
the electromagnetic valve 11 is used for opening or closing the liquid supply pipeline;
the liquid filter 12 is used for filtering impurities in the liquid medium;
the liquid pressure gauge 13 is used for detecting the pressure of the liquid medium output by the liquid supply pipeline.
In the gas-liquid mixed flushing system of the fourth embodiment, when the flushing of the workpiece is suspended or the workpiece is circulated, the liquid supply pipeline can be closed through the electromagnetic valve 11, so that gas is prevented from being mixed into the liquid medium supply device.
EXAMPLE five
According to the gas-liquid mixing flushing system of the first embodiment, as shown in fig. 2, a pressure regulating valve 21 and a gas check valve 22 are sequentially arranged on the gas supply pipeline from an inlet to an outlet;
the pressure regulating valve 21 is used for regulating the pressure of the gas output by the gas supply pipeline;
the high-pressure end of the gas check valve 22 is at the side of the pressure regulating valve 21.
Preferably, a ball valve 23 and a pressure booster 24 are arranged on the gas supply pipeline from the inlet to the pressure regulating valve 21;
the pressure intensifier 24 serves to increase the gas pressure in the gas supply line.
Preferably, a metering speed regulating valve 25 and a gas pressure gauge 26 are arranged on the gas supply pipeline from the pressure regulating valve 21 to the inlet of the gas one-way valve;
a gas filter 27 is arranged on the gas supply pipeline from the outlet to the gas one-way valve 22;
the metering speed regulating valve 25 is used for detecting and regulating the gas output of the gas supply pipeline;
the gas filter 27 is used for filtering contaminating particles in the gas.
In the gas-liquid mixed flushing system of the fifth embodiment, the supercharger 24 boosts the intake pressure to make the gas pressure output by the gas supply pipeline greater than the liquid medium pressure output by the liquid supply pipeline, the gas is mixed into the liquid medium in the output pipeline, the mixing amount of the gas is controlled by the metering speed regulating valve 25, so that the rigidity of the liquid medium containing bubbles formed in the output pipeline is reduced, and the gas check valve 22 can prevent the liquid medium from backflushing into the gas supply pipeline, thereby avoiding secondary pollution.
EXAMPLE six
Based on the gas-liquid mixed flushing system of the first embodiment, as shown in fig. 2, the output pipeline is communicated with the low-pressure end of an observation check valve 31;
the high-pressure end of the observation check valve 31 is provided with a quick-plugging port.
The gas-liquid mixing flushing system of the sixth embodiment can be externally connected with a transparent gas-liquid mixing observation pipeline 4 through the quick-plugging port, so that the form of the workpiece flushing liquid output by the output pipeline can be observed conveniently.
The above are merely preferred embodiments of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (14)
1. A gas-liquid mixing flushing system is characterized by comprising a liquid supply pipeline, a gas supply pipeline and an output pipeline;
the liquid medium output by the liquid medium supply pipeline is mixed with the gas output by the gas supply pipeline to form a bubble-containing liquid medium, and the bubble-containing liquid medium is output through the output pipeline and is used as a workpiece flushing liquid;
the pressure of the liquid medium output by the liquid supply pipeline is more than 1.5 bar;
the pressure of the gas output by the gas supply pipeline is more than 1.5 bar.
2. A gas-liquid hybrid flushing system as set forth in claim 1,
the pressure of the liquid medium output by the liquid supply pipeline is greater than that of the gas output by the gas supply pipeline.
3. A gas-liquid hybrid flushing system as set forth in claim 1,
the pressure of the gas output by the gas supply pipeline is 1.05 to 1.2 times of the pressure of the liquid medium output by the liquid supply pipeline.
4. A gas-liquid hybrid flushing system as set forth in claim 1,
the pressure of the gas output by the gas supply pipeline is 1.09 times, 1.1 times or 1.11 times of the pressure of the liquid medium output by the liquid supply pipeline.
5. A gas-liquid hybrid flushing system as set forth in claim 1,
the pressure of the gas output by the gas supply line is 6.5 bar;
the pressure of the liquid medium output from the liquid supply line was 6 bar.
6. A gas-liquid hybrid flushing system as set forth in claim 1,
the liquid medium output by the liquid medium supply pipeline is mixed with the gas output by the gas supply pipeline to form the liquid medium containing bubbles, and the bubbles account for 5 to 15 percent of the volume of the liquid medium.
7. A gas-liquid hybrid flushing system as set forth in claim 1,
and the liquid medium output by the liquid medium supply pipeline is mixed with the gas output by the gas supply pipeline to form a liquid medium containing bubbles, and the bubbles account for 9%, 10% or 11% of the volume of the liquid medium.
8. A gas-liquid hybrid flushing system as set forth in claim 1,
the workpiece is an oil sprayer, a filter element, a valve sleeve, an electromagnetic valve core, a gear or a shaft.
9. A gas-liquid hybrid flushing system as set forth in claim 1,
the liquid medium is CH20V3 detection oil, n-heptane, gasoline or diesel oil;
the gas is air, carbon dioxide or nitrogen.
10. A gas-liquid hybrid flushing system as set forth in claim 1,
the liquid supply pipeline is provided with an electromagnetic valve, a liquid filter and a liquid pressure gauge;
the electromagnetic valve is used for opening or closing the liquid supply pipeline;
the liquid filter is used for filtering impurities in the liquid medium;
the liquid pressure gauge is used for detecting the pressure of the liquid medium output by the liquid supply pipeline.
11. A gas-liquid hybrid flushing system as set forth in claim 1,
a pressure regulating valve and a gas one-way valve are sequentially arranged on the gas supply pipeline from the inlet to the outlet;
the pressure regulating valve is used for regulating the pressure of the gas output by the gas supply pipeline;
the high-pressure end of the gas one-way valve is arranged on the side of the pressure regulating valve.
12. A gas-liquid hybrid flushing system as set forth in claim 10,
a ball valve and a supercharger are arranged on the gas supply pipeline from the inlet to the pressure regulating valve;
the pressure booster is used for increasing the gas pressure in the gas supply pipeline.
13. A gas-liquid hybrid flushing system as set forth in claim 10,
a metering speed regulating valve and a gas pressure gauge are arranged on the gas supply pipeline from the pressure regulating valve to the inlet of the gas one-way valve;
a gas filter is arranged on the gas supply pipeline from the outlet to the gas one-way valve;
the metering speed regulating valve is used for detecting and regulating the gas output of the gas supply pipeline;
the gas filter is used for filtering pollution particles in the gas.
14. A gas-liquid hybrid flushing system as set forth in claim 1,
the output pipeline is communicated with a low-pressure end of an observation check valve;
and the high-pressure end of the observation check valve is provided with a quick-plugging port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810667653.3A CN110639870A (en) | 2018-06-26 | 2018-06-26 | Gas-liquid mixing flushing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810667653.3A CN110639870A (en) | 2018-06-26 | 2018-06-26 | Gas-liquid mixing flushing system |
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| CN110639870A true CN110639870A (en) | 2020-01-03 |
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| CN201810667653.3A Pending CN110639870A (en) | 2018-06-26 | 2018-06-26 | Gas-liquid mixing flushing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112354035A (en) * | 2020-11-13 | 2021-02-12 | 武汉盛大康成医药科技有限公司 | Cleaning bed |
| CN115055435A (en) * | 2022-07-08 | 2022-09-16 | 南京华易泰电子科技有限公司 | Water jet cleaning system utilizing ultrahigh water pressure and carbon dioxide |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006203130A (en) * | 2005-01-24 | 2006-08-03 | Shimada Phys & Chem Ind Co Ltd | Washing apparatus and method of supplementing liquid thereto |
| CN101136319A (en) * | 2006-08-29 | 2008-03-05 | 大日本网目版制造株式会社 | Substrate processing method and substrate processing apparatus |
| CN101154566A (en) * | 2006-09-27 | 2008-04-02 | 大日本网目版制造株式会社 | Substrate processing device and method |
| JP2008212788A (en) * | 2007-03-01 | 2008-09-18 | Nomura Micro Sci Co Ltd | Cleaning apparatus and cleaning method |
| CN103301761A (en) * | 2013-06-09 | 2013-09-18 | 京东方科技集团股份有限公司 | Gas-liquid mixing device and cleaning equipment |
-
2018
- 2018-06-26 CN CN201810667653.3A patent/CN110639870A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006203130A (en) * | 2005-01-24 | 2006-08-03 | Shimada Phys & Chem Ind Co Ltd | Washing apparatus and method of supplementing liquid thereto |
| CN101136319A (en) * | 2006-08-29 | 2008-03-05 | 大日本网目版制造株式会社 | Substrate processing method and substrate processing apparatus |
| CN101154566A (en) * | 2006-09-27 | 2008-04-02 | 大日本网目版制造株式会社 | Substrate processing device and method |
| JP2008212788A (en) * | 2007-03-01 | 2008-09-18 | Nomura Micro Sci Co Ltd | Cleaning apparatus and cleaning method |
| CN103301761A (en) * | 2013-06-09 | 2013-09-18 | 京东方科技集团股份有限公司 | Gas-liquid mixing device and cleaning equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112354035A (en) * | 2020-11-13 | 2021-02-12 | 武汉盛大康成医药科技有限公司 | Cleaning bed |
| CN115055435A (en) * | 2022-07-08 | 2022-09-16 | 南京华易泰电子科技有限公司 | Water jet cleaning system utilizing ultrahigh water pressure and carbon dioxide |
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Application publication date: 20200103 |