CN107265542B - Waterway gas separation device and method - Google Patents
Waterway gas separation device and method Download PDFInfo
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- CN107265542B CN107265542B CN201710713179.9A CN201710713179A CN107265542B CN 107265542 B CN107265542 B CN 107265542B CN 201710713179 A CN201710713179 A CN 201710713179A CN 107265542 B CN107265542 B CN 107265542B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/063—Underpressure, vacuum
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Food Science & Technology (AREA)
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- Pathology (AREA)
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
The invention relates to a waterway gas separation device which is communicated with an online conveying waterway and comprises a water inlet pipeline communicated with the online conveying waterway, a primary degassing section and a negative pressure suction mechanism, wherein the primary degassing section is communicated with the water inlet pipeline in parallel, and degassing is realized by spraying water flow with variable diameter of the pipeline; the device is characterized by further comprising a second-stage degassing section which is communicated with the downstream of the first-stage degassing section and is used for degassing by utilizing the acceleration of gravity, a water outlet pipeline communicated with a water quality detection device is arranged at the tail end of the second-stage degassing section, the negative pressure suction mechanism is used for carrying out negative pressure adsorption on gas separated from the second-stage degassing section and inputting the gas to the online water conveying pipeline, and the first-stage degassing section is communicated with the second-stage degassing section and the second-stage degassing section are communicated with the negative pressure adsorption mechanism in a sealing mode respectively. The waterway gas separation device removes bubbles in the liquid to be detected through multistage degassing, and has better use effect.
Description
Technical Field
The invention relates to the technical field of liquid-gas separation devices in online water paths, in particular to a water path gas separation device. The invention also relates to a method for applying the waterway gas separation device.
Background
The water quality monitoring is a process for monitoring and measuring the types of pollutants in a water body, the concentrations and the variation trends of various pollutants and evaluating the water quality conditions, the monitoring range is very wide and comprises uncontaminated and contaminated natural water (rivers, lakes, seas and underground water) and various industrial drainage and the like, and during online water quality measurement, a large amount of tiny bubbles exist in a liquid to be detected after the liquid circulates through a pipeline, or a large amount of tiny bubbles generally exist in the liquid, and the existence of the bubbles seriously influences the accuracy of the water quality measurement.
Disclosure of Invention
In view of the above, the present invention is directed to a water-channel gas separation device and method, which can remove bubbles from a liquid to be detected through multi-stage degassing, thereby providing a better use effect.
The technical scheme of the invention is realized by the following modes:
a waterway gas separation device is communicated with an online conveying waterway and comprises a water inlet pipeline communicated with the online conveying waterway, a primary degassing section and a negative pressure suction mechanism, wherein the primary degassing section is communicated with the water inlet pipeline in parallel, and degassing is realized by utilizing pipeline reducing jet water flow; the device is characterized by further comprising a second-stage degassing section which is communicated with the downstream of the first-stage degassing section and is used for degassing by utilizing the acceleration of gravity, a water outlet pipeline communicated with a water quality detection device is arranged at the tail end of the second-stage degassing section, the negative pressure suction mechanism is used for carrying out negative pressure adsorption on gas separated from the second-stage degassing section and inputting the gas to the online water conveying pipeline, and the first-stage degassing section is communicated with the second-stage degassing section and the second-stage degassing section are communicated with the negative pressure adsorption mechanism in a sealing mode respectively.
And the primary degassing section comprises a straight pipe communicated with the water inlet pipeline and a reducing pipe communicated with the straight pipe.
By way of further limitation, the reducer is tapered and has an angle of uplift relative to the straight tube.
As a further limitation, the closing angle of the reducing pipe is 15-30 degrees relative to the straight pipe.
As a further limitation, the secondary degassing section is a sealing groove for receiving water flow jetted by the reducing pipe, and the sealing groove has a slope declining from a communication position with the tail end of the reducing pipe to a position where a water outlet pipeline is opened.
As a further limitation, the downward gradient of the sealing groove is 5-20 degrees.
As a further limitation, the negative pressure suction mechanism comprises an L-shaped shunt pipeline which is communicated with the straight pipe in parallel and is communicated with the water inlet pipeline, and a small reducing pipe which is communicated with the tail end of the shunt pipeline; still including communicate in the terminal extension pipeline of little necked-in pipe, and communicate in the straight pipe of leading to of extension pipeline end, little necked-in pipe with the extension pipeline all is the toper setting, just the end of little necked-in pipe with the head end of extension pipeline encloses and constitutes the choke, in choke department intercommunication have with the suction line that the seal groove is linked together, suction line with the seal groove is linked together one end and is located the surface of water upper strata of seal groove.
The invention has the advantages that:
according to the waterway gas separation device, the first-stage degassing section is arranged, degassing is performed by using the water flow sprayed by the reducing diameter of the pipeline in the first-stage degassing section, secondary degassing is performed by using different densities and gravitational acceleration of liquid and bubbles in the second-stage degassing section, negative pressure adsorption can be performed on gas removed from the second-stage degassing section by arranging the negative pressure suction mechanism, and three-stage degassing is performed.
Another objective of the present invention is to provide a method for separating gas in a waterway.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the waterway gas separation method applies the waterway gas separation device, and comprises the following steps:
a. one path of water entering from the water inlet pipeline flows into the reducing pipe from the straight pipe, and primary degassing is carried out by spraying water flow from the reducing pipe;
b. the secondary degassing section receives the water flow jetted from the reducing pipe in the step a, and the falling speed of the water is higher than that of the bubbles under the action of the gravity acceleration, so that secondary degassing is carried out;
c. and (c) water entering through the water inlet pipeline flows into the negative pressure suction mechanism from one path of parallel communication with the straight pipe flowing in the step (a), and the negative pressure suction mechanism performs negative pressure adsorption on gas and bubbles on the upper layer of the water surface of the secondary degassing section in the step (b) so as to perform three-stage degassing.
Compared with the prior art, the waterway gas separation method and the waterway gas separation device have the same advantages, and are not described again.
Drawings
Fig. 1 is a schematic structural diagram of a water path gas separation device according to a first embodiment of the present invention.
Wherein: 1-water inlet pipeline, 2-first-stage degassing section, 21-straight pipe, 22-reducing pipe, 3-negative pressure air suction mechanism, 31-shunt pipeline, 32-small reducing pipe, 33-expanding pipeline, 34-straight pipe, 35-throat pipe, 36-air suction pipeline, 4-second-stage degassing section, 41-water outlet pipeline and 42-sealing groove.
Detailed Description
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example one
The embodiment relates to a water path gas separation device, which is communicated on an on-line conveying water path, as shown in fig. 1, the device comprises a water inlet pipeline 1 communicated with the on-line conveying water path, and a primary degassing section 2 and a negative pressure suction mechanism 3 which are communicated on the water inlet pipeline 1 in parallel, in the embodiment, the primary degassing section 2 utilizes reducing jet water flow to degas, the device also comprises a secondary degassing section 4 communicated at the downstream of the primary degassing section 2 and degassing by utilizing gravity acceleration, the tail end of the secondary degassing section 4 is provided with a water outlet pipeline 41 communicated with a water quality detection device, the negative pressure suction mechanism 3 carries out negative pressure adsorption on gas separated from the secondary degassing section 4 and inputs the gas to the on-line conveying water path, and the primary degassing section 2 and the secondary degassing section 4, and the secondary degassing section 4 and the negative pressure adsorption mechanism are respectively communicated in a sealing manner.
Through setting up one-level degasification section 2, utilize reducing jet stream and carry out the one-level degasification, through setting up second grade degasification section 4, utilize liquid and bubble density and acceleration of gravity different, and carry out the second grade degasification, set up the pressure suction mechanism through the burden, can carry out the negative pressure to the gas that second grade degasification section 4 was deviate from and adsorb, carry out tertiary degasification, through multistage degasification, and make degasification effectual to promote water quality monitoring's precision.
In this embodiment, the first-stage degassing section 2 includes a straight pipe 21 communicated with the water inlet pipeline 1 and a reducing pipe 22 communicated with the straight pipe 21, specifically, a water pump is disposed on the water inlet pipeline 1 to pump the water in the on-line water conveying path into the water inlet pipeline 1 at high pressure, in this embodiment, the straight pipe 21 is disposed perpendicular to the water inlet pipeline 1, so that the water in the water flow is deflected and attached to the straight pipe 21 to perform primary degassing. The diameter of the straight pipe 21 is smaller than that of the water inlet pipeline 1, so that water flow is pressurized for the second time, and the water flow is better jetted out, meanwhile, the reducing pipe 22 is arranged in a conical shape, and the reducing pipe 22 has an upward angle relative to the straight pipe 21, so that the water flow is jetted out through the reducing pipe 22, and primary degassing is performed, meanwhile, the reducing pipe 22 has an upward angle relative to the straight pipe 21, and the time that the water flow falls into a sealing groove 42 can be prolonged, in the embodiment, the pipe diameter of one end, communicated with the straight pipe 21, of the reducing pipe 22 is slightly smaller than that of the straight pipe 21, so that the straight pipe 21 is communicated with the straight pipe 21 in a sealing manner, so that the pressurizing effect is good, the closing angle of the reducing pipe 22 relative to the straight pipe 21 is 15-30 degrees, and preferably, the closing angle is 15-25 degrees.
In this embodiment, the second degassing section 4 is a sealing groove 42 for receiving the water flow jetted by the reducing pipe 22, the water flow jetted by the reducing pipe 22 has an upward angle due to the reducing pipe 22, and the water flow is jetted above the sealing groove 42, because the density and the gravitational acceleration of water and air bubbles are different, the water falls down faster than the air bubbles, and the second degassing is performed, in order to make the second degassing effect better, the sealing groove 42 has a slope that is declined from the end communicating part with the reducing pipe 22 to the opened water outlet pipeline 41, so that the liquid is attached to the bottom wall of the sealing groove 42, and a water film is formed, so that the effect is better, the slope that the sealing groove 42 declines is 5-20 degrees, preferably, the slope that the sealing groove 42 declines is 15 degrees.
In this embodiment, the negative pressure suction mechanism 3 includes an L-shaped branch pipeline 31 connected to the straight pipe 21 in parallel and communicated with the water inlet pipeline 1, and a small diameter reducing pipe 32 connected to the end of the branch pipeline 31; the water-cooled pipeline expansion device further comprises an expansion pipeline 33 communicated with the tail end of the small reducing pipe 32 and a straight pipe 34 communicated with the tail end of the expansion pipeline 33, the small reducing pipe 32 and the expansion pipeline 33 are both arranged in a conical mode, the tail end of the small reducing pipe 32 and the head end of the expansion pipeline 33 enclose to form a throat pipe 35, an air suction pipeline 36 communicated with the sealing groove 42 is communicated with the throat pipe 35, and one end, communicated with the sealing groove 42, of the air suction pipeline 36 is located on the upper layer of the water surface of the sealing groove 42. In this embodiment, the diversion pipeline 31 is perpendicular to the straight pipe 21, the diameter of the diversion pipeline 31 is the same as that of the water inlet pipeline 1, the diameter of the tail end of the small reducing pipe 32 is smaller than that of the head end of the expanding pipeline 33, and because the speed of the sprayed water flow is high, a negative pressure is formed around the throat 311 to generate a vacuum, so that the air suction pipeline 32 adsorbs bubbles above the sealing groove 42, and three-stage degassing is realized.
In the embodiment, the bubbles in the liquid to be detected are removed through multi-stage degassing, so that the use effect is better.
Example two
The present embodiment relates to a method for separating water-path gas, which is applied to a water-path gas separation device in the first embodiment, and comprises the following steps:
a. one path of water entering through the water inlet pipeline 1 flows into the reducing pipe 22 from the straight pipe 21, and primary degassing is carried out by utilizing water flow sprayed from the reducing pipe 22;
b. the secondary degassing section 4 receives the water flow jetted from the reducing pipe 22 in the step a, and carries out secondary degassing under the action of gravity acceleration and the falling speed of the water is higher than that of bubbles;
c. and (b) water entering through the water inlet pipeline 1 flows into the negative pressure air suction mechanism 3 from the other path which is communicated with one path of the straight pipe 21 flowing into the step (a) in parallel, and the negative pressure air suction mechanism 3 carries out negative pressure adsorption on bubbles and gas on the upper layer of the water surface of the secondary degassing section 4 in the step (b) so as to carry out three-stage degassing.
In this embodiment, after the water is sprayed from the reducing pipe 22, the water flows into the sealing groove 42 under the action of gravity acceleration, which causes the water to form a water film layer in the sealing groove, so that the separation effect is better.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention by equally replacing or changing the technical idea of the present invention within the technical scope of the present invention.
Claims (3)
1. The utility model provides a gaseous separator in water route, communicates on the on-line delivery water route, its characterized in that: the online water conveying device comprises a water inlet pipeline communicated with the online water conveying pipeline, and a primary degassing section and a negative pressure suction mechanism which are communicated with the water inlet pipeline in parallel, wherein the primary degassing section is used for degassing by spraying water flow with variable diameters through a pipeline; the device also comprises a secondary degassing section which is communicated with the downstream of the primary degassing section and is used for degassing by utilizing the acceleration of gravity, a water outlet pipeline communicated with a water quality detection device is arranged at the tail end of the secondary degassing section, the negative pressure suction mechanism is used for carrying out negative pressure adsorption on gas removed from the secondary degassing section and inputting the gas into the online water conveying pipeline, and the primary degassing section is hermetically communicated with the secondary degassing section and the secondary degassing section are hermetically communicated with the negative pressure adsorption mechanism;
the first-stage degassing section comprises a straight pipe communicated with the water inlet pipeline and a reducing pipe communicated with the straight pipe;
the reducing pipe is arranged in a conical shape and has an upward angle relative to the straight pipe;
the secondary degassing section is a sealing groove for bearing water flow jetted by the reducing pipe, and the sealing groove is provided with a slope which is declined from a position communicated with the tail end of the reducing pipe to a position provided with a water outlet pipeline;
the downward gradient of the sealing groove is 5-20 degrees;
the negative pressure air suction mechanism comprises an L-shaped shunt pipeline which is communicated with the straight pipe in parallel and the water inlet pipeline, and a small reducing pipe which is communicated with the tail end of the shunt pipeline; still including communicate in the terminal extension pipeline of little necked-in pipe, and communicate in the straight pipe of leading to of extension pipeline end, little necked-in pipe with the extension pipeline all is the toper setting, just the end of little necked-in pipe with the head end of extension pipeline encloses and constitutes the choke, in choke department intercommunication have with the suction line that the seal groove is linked together, the suction line with the one end that the seal groove is linked together is located the surface of water upper strata of seal groove.
2. The waterway gas separation device of claim 1, wherein: relative to the straight pipe, the closing angle of the reducing pipe is 15-30 degrees.
3. An waterway gas separation method, wherein the waterway gas separation device of any one of claims 1 to 2 is applied, comprising the steps of:
a. one part of the water entering from the water inlet pipeline flows into the reducing pipe from the straight pipe, and primary degassing is carried out by utilizing water flow sprayed from the reducing pipe;
b. the secondary degassing section receives the water flow jetted from the reducing pipe in the step a, and the falling speed of the water is higher than that of the bubbles under the action of the gravity acceleration, so that secondary degassing is carried out;
c. and (c) water entering through the water inlet pipeline flows into the negative pressure suction mechanism from one path of parallel communication with the straight pipe flowing in the step (a), and the negative pressure suction mechanism performs negative pressure adsorption on gas and bubbles on the upper layer of the water surface of the secondary degassing section in the step (b) so as to perform three-stage degassing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710713179.9A CN107265542B (en) | 2017-08-18 | 2017-08-18 | Waterway gas separation device and method |
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| CN201710713179.9A CN107265542B (en) | 2017-08-18 | 2017-08-18 | Waterway gas separation device and method |
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| CN107265542A CN107265542A (en) | 2017-10-20 |
| CN107265542B true CN107265542B (en) | 2023-02-03 |
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| CN108543640B (en) * | 2018-04-02 | 2020-07-03 | 深圳市华星光电技术有限公司 | Liquid discharge device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN85103948A (en) * | 1984-05-24 | 1987-01-14 | 螺旋体研究有限公司 | Reduce the method and apparatus of gas content in the liquid |
| JP2003080243A (en) * | 2001-09-14 | 2003-03-18 | Sanikon:Kk | Method and apparatus for removing suspension |
| TW201200222A (en) * | 2005-06-21 | 2012-01-01 | Kaijo Kk | Deaeration device and ultrasonic cleaning device using the same |
| CN203187429U (en) * | 2013-02-04 | 2013-09-11 | 北京欧力凯科技发展有限责任公司 | Vacuum degassing and deaerating plant with spray head |
| CN103877752A (en) * | 2014-04-08 | 2014-06-25 | 华东理工大学 | Online degassing method and device of pipeline fluid |
| CN203841088U (en) * | 2014-05-04 | 2014-09-24 | 石家庄市田牛牧业有限公司 | Saturated steam water removal system |
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