CN105413506B - Backwater preventing device of gas-liquid mixing system - Google Patents
Backwater preventing device of gas-liquid mixing system Download PDFInfo
- Publication number
- CN105413506B CN105413506B CN201510893590.XA CN201510893590A CN105413506B CN 105413506 B CN105413506 B CN 105413506B CN 201510893590 A CN201510893590 A CN 201510893590A CN 105413506 B CN105413506 B CN 105413506B
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- Prior art keywords
- pipe
- liquid
- middle connecting
- gas
- way check
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- 239000007788 liquid Substances 0.000 title claims abstract description 69
- 230000002265 prevention Effects 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000005484 gravity Effects 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 19
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F2035/35—Use of other general mechanical engineering elements in mixing devices
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Check Valves (AREA)
Abstract
The invention relates to the technical field of gas-liquid mixing systems, in particular to a backwater prevention device of a gas-liquid mixing system; the water return prevention device comprises a middle connecting pipe, the middle part of the middle connecting pipe is connected with an air inlet pipe, and an air outlet pipe of the middle connecting pipe is connected with a first one-way check valve; the lower part of the middle connecting pipe is connected with a circuitous seepage pipe, and the seepage pipe is connected with a second one-way check valve; when the gas-liquid mixing system works, a negative pressure suction state is formed in the gas outlet pipe; the first one-way check valve is conducted, the air inlet pipe connected with the middle connecting pipe smoothly supplies air to the system, the second one-way check valve is closed by negative pressure suction, and the prepared air is prevented from entering the outside through the seepage pipe; when the gas-liquid mixing system stops working, the negative pressure suction disappears and the gas-liquid mixing system instantaneously changes into positive pressure ejection; the liquid can flow backwards from the outlet pipe, and the first one-way check valve is closed, so that the liquid caused by positive pressure spraying is effectively prevented from entering the air inlet pipe, and the use safety of air supply equipment is ensured.
Description
Technical Field
The invention relates to the technical field of gas-liquid mixing systems, in particular to a backwater prevention device of a gas-liquid mixing system.
Background
When the gas-liquid mixing system works, along with the simultaneous use of gas supply sources (such as ozone, oxygen and other gases), the gas supply pipe sucks liquid negative pressure through venturi, a gas-liquid mixing device, a gas-liquid mixing pump and the like, and the suction type gas supply mode supplies gas, namely fluid with certain pressure is ejected out of the gas-liquid mixing cavity at high speed, so that the gas-liquid mixing cavity generates larger negative pressure by using turbulent flow of water, and ozone, oxygen, other gases of air and the like are sucked. When the gas-liquid mixing system stops working, negative pressure is sucked and disappears, instant positive pressure is sprayed out, liquid flows back from the gas inlet pipe and enters the gas supply equipment end, the gas supply equipment is injured to different degrees due to the liquid inlet, and the gas supply equipment cannot work normally in many cases.
Disclosure of Invention
The invention aims at overcoming the defects of the existing negative pressure suction type gas-liquid mixed gas supply, and provides a gas-liquid mixed system backwater prevention device for solving the problems.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The gas-liquid mixing system water return prevention device comprises a middle connecting pipe, the middle part of the middle connecting pipe is connected with an air inlet pipe, the upper part of the middle connecting pipe is connected with an air outlet pipe, the air outlet pipe is connected with a first one-way check valve, and the first one-way check valve is conducted and reversely closed in the direction of fluid to the air outlet pipe; the lower part of the middle connecting pipe is connected with a circuitous liquid seepage pipe, the highest circuitous position in the circuitous liquid seepage pipe is lower than the joint of the air inlet pipe at the middle connecting pipe, the liquid seepage pipe is connected with a second one-way check valve, and the second one-way check valve is closed and reversely conducted in the direction of fluid flowing out of the middle connecting pipe.
Preferably, the first one-way check valve is vertically connected to the air outlet pipe, the first one-way check valve comprises a first valve body, a first valve cavity is arranged on the first valve body, and a first outlet and a first inlet are respectively arranged above and below the first valve cavity; the first valve cavity is internally provided with a first gravity valve, and a first sealing device which can form a seal with the first gravity valve is arranged above the first inlet.
Preferably, the second one-way check valve is vertically connected to the seepage pipe, the second one-way check valve comprises a second valve body, a second valve cavity is arranged on the second valve body, and a second outlet and a second inlet are respectively arranged above and below the second valve cavity; the second gravity valve is arranged in the second valve cavity, and a second sealing device which can form a seal with the second gravity valve is arranged above the second inlet.
Preferably, the first sealing device is composed of a soft rubber gasket and an O-shaped ring.
Preferably, the second sealing device is composed of a soft rubber gasket and an O-shaped ring.
The water return prevention device of the gas-liquid mixing system has the beneficial effects that the water return prevention device comprises a middle connecting pipe, the middle part of the middle connecting pipe is connected with an air inlet pipe, the upper part of the middle connecting pipe is connected with an air outlet pipe, and the air outlet pipe is connected with a first one-way check valve; the lower part of the middle connecting pipe is connected with a circuitous liquid seepage pipe, the highest circuitous position in the circuitous liquid seepage pipe is lower than the joint of the air inlet pipe at the middle connecting pipe, and the liquid seepage pipe is connected with a second one-way check valve; when the device is arranged in a gas-liquid mixing system, the gas outlet pipe is connected with the gas inlet pipe of the liquid negative pressure suction type device, and the gas inlet pipe is connected with the gas supply device; when the system air supply system performs air supply work, under the action of fluid flow, the negative pressure suction first one-way check valve is conducted in the air outlet pipe, the air inlet pipe connected with the middle connecting pipe smoothly supplies air to the system, at the moment, the second one-way check valve is closed because of the negative pressure suction of the middle connecting pipe, and the prepared air is prevented from entering the outside through the seepage pipe; on the other hand, if liquid enters the middle connecting pipe in the working process and is collected to the bottom of the middle connecting pipe, when the liquid level is higher than the highest position of the roundabout liquid seepage pipe, the liquid does not reach the height of the air inlet pipe, and cannot enter the air inlet pipe, the second one-way check valve is conducted, and the liquid seeps out, so that an effective liquid drainage effect is achieved.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention in operation;
FIG. 2 is a schematic cross-sectional view of the present invention in a non-operating state;
Detailed Description
The invention is further described below with reference to fig. 1 and 2:
The water return prevention device of the gas-liquid mixing system comprises a middle connecting pipe 1, wherein the middle part of the middle connecting pipe 1 is connected with an air inlet pipe 2, the upper part of the middle connecting pipe 1 is connected with an air outlet pipe 3, the air outlet pipe 3 is connected with a first one-way check valve 4, and the first one-way check valve 4 is conducted and reversely closed in the direction of fluid to the air outlet pipe 3; the lower part of the middle connecting pipe 1 is connected with a circuitous liquid seepage pipe 5, the highest circuitous position 51 in the circuitous liquid seepage pipe 5 is lower than the joint of the air inlet pipe 2 at the middle connecting pipe 1, the liquid seepage pipe 5 is connected with a second one-way check valve 6, and the second one-way check valve 6 is closed and reversely conducted in the direction of fluid out of the middle connecting pipe 1.
As a preferred embodiment, in this embodiment, the first one-way check valve 4 is vertically connected to the air outlet pipe 3, where the first one-way check valve 4 includes a first valve body 41, a first valve cavity 42 is disposed on the first valve body 41, and a first outlet 43 and a first inlet 44 are respectively disposed above and below the first valve cavity 42; the first valve cavity 42 is internally provided with a first gravity valve 45, a first sealing device 46 which can form a seal with the first gravity valve 45 is arranged above the first inlet 44, the first sealing device 46 is formed by a soft rubber gasket and an O-shaped ring, and the rubber ring has good elasticity, can form good seal with the gravity first gravity valve 45, and has good performance and low cost.
As a preferred embodiment, the second one-way check valve 6 of the present embodiment is vertically connected to the seepage pipe 5, the second one-way check valve 6 includes a second valve body 61, a second valve cavity 62 is disposed on the second valve body 61, and a second outlet 63 and a second inlet 64 are respectively disposed above and below the second valve cavity 62; the second gravity valve 65 is arranged in the second valve cavity 62, the second sealing device 66 which can form a seal with the second gravity valve 65 is arranged above the second inlet 64, the second sealing device 66 is formed by a soft rubber gasket and an O-shaped ring, the rubber gasket and the O-shaped ring have good elasticity, and can form good seal with the gravity second gravity valve 65, and the sealing device has good performance and low cost.
When the water return preventing device of the gas-liquid mixing system is arranged in the gas-liquid mixing system, the air outlet pipe 3 is connected with the air inlet pipe of the liquid negative pressure suction type equipment, and the air inlet pipe 2 is connected with the air supply equipment; when the system air supply system performs air supply work, under the action of fluid flow, the negative pressure exists in the air outlet pipe 3 to suck the first one-way check valve 4 to be conducted, the air inlet pipe 2 connected with the middle connecting pipe 1 smoothly supplies air to the system, at the moment, the second one-way check valve 6 is closed to prevent the prepared air from entering the outside through the seepage pipe 5 due to the negative pressure exists in the middle connecting pipe 1 (shown by an arrow in fig. 1); when the gas-liquid mixing system stops supplying gas, negative pressure suction disappears, liquid flows back from the gas inlet pipe, and when the first one-way check valve 4 is arranged, the first one-way check valve 4 is closed to prevent further entering, so that the liquid is effectively prevented from entering the gas inlet pipe 2, and the safety of gas supply equipment is ensured; on the other hand, if liquid enters the middle connecting pipe 1 during the working process and is collected at the bottom of the middle connecting pipe 1, when the accumulated liquid is higher than the highest position of the roundabout liquid seepage pipe 5, the accumulated liquid does not reach the height of the air inlet pipe 2, and cannot enter the air inlet pipe 2, the second one-way check valve 6 is conducted, and the liquid seeps out, so that an effective liquid drainage effect is achieved (the rain drop shape is the accumulated liquid and the outflow schematic diagram shown in fig. 2).
The above embodiments are only preferred examples of the present invention and are not intended to limit the scope of the present invention, so that all equivalent changes or modifications of the structure, characteristics and principles described in the claims should be included in the scope of the present invention.
Claims (5)
1. The water return prevention device of the gas-liquid mixing system is characterized by comprising a middle connecting pipe, wherein the middle part of the middle connecting pipe is connected with an air inlet pipe, the air inlet pipe is used for being connected with air supply equipment, the upper part of the middle connecting pipe is connected with an air outlet pipe, the air outlet pipe is connected with a first one-way check valve, the first one-way check valve is conducted and reversely closed in the direction of a fluid to the air outlet pipe, and the air outlet pipe is used for being connected with an air inlet pipe of liquid negative pressure suction equipment; the lower part of the middle connecting pipe is connected with a circuitous liquid seepage pipe, the highest circuitous position in the circuitous liquid seepage pipe is lower than the joint of the air inlet pipe at the middle connecting pipe, the liquid seepage pipe is connected with a second one-way check valve, and the second one-way check valve is closed and reversely conducted in the direction of fluid flowing out of the middle connecting pipe;
When the system air supply system performs air supply work, the air inlet pipe connected with the middle connecting pipe smoothly supplies air to the system, and the second one-way check valve is closed to prevent the prepared air from entering the outside through the seepage pipe due to negative pressure suction of the middle connecting pipe;
If liquid enters the middle connecting pipe in the working process, the liquid is collected at the bottom of the middle connecting pipe, when the accumulated liquid is higher than the highest position of the detour seepage pipe, the liquid does not reach the height of the air inlet pipe, the second one-way check valve is conducted, and the liquid seeps out.
2. The water return prevention device of a gas-liquid mixing system according to claim 1, wherein: the first one-way check valve is vertically connected to the air outlet pipe and comprises a first valve body, a first valve cavity is arranged on the first valve body, and a first outlet and a first inlet are respectively arranged above and below the first valve cavity; the first valve cavity is internally provided with a first gravity valve, and a first sealing device which can form a seal with the first gravity valve is arranged above the first inlet.
3. The water return prevention device of a gas-liquid mixing system according to claim 1, wherein: the second one-way check valve is vertically connected to the seepage pipe and comprises a second valve body, a second valve cavity is arranged on the second valve body, and a second outlet and a second inlet are respectively arranged above and below the second valve cavity; the second gravity valve is arranged in the second valve cavity, and a second sealing device which can form a seal with the second gravity valve is arranged above the second inlet.
4. The water return prevention device of a gas-liquid mixing system according to claim 2, wherein: the first sealing device is composed of a soft rubber gasket and an O-shaped ring.
5. A gas-liquid mixing system backwater prevention device according to claim 3, wherein: the second sealing device is composed of a soft rubber gasket and an O-shaped ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510893590.XA CN105413506B (en) | 2015-11-27 | 2015-11-27 | Backwater preventing device of gas-liquid mixing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510893590.XA CN105413506B (en) | 2015-11-27 | 2015-11-27 | Backwater preventing device of gas-liquid mixing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105413506A CN105413506A (en) | 2016-03-23 |
| CN105413506B true CN105413506B (en) | 2024-06-18 |
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ID=55492309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510893590.XA Active CN105413506B (en) | 2015-11-27 | 2015-11-27 | Backwater preventing device of gas-liquid mixing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105413506B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108150831A (en) * | 2018-01-18 | 2018-06-12 | 深圳市兰德玛水环境工程科技有限公司 | A kind of gas supply system for liquid |
| CN113041797A (en) * | 2021-03-11 | 2021-06-29 | 芜湖造船厂有限公司 | Efficient multipurpose gas absorption equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2817979Y (en) * | 2005-08-08 | 2006-09-20 | 王晓明 | Siphon injector for preventing countercurrent |
| CN201926096U (en) * | 2010-12-31 | 2011-08-10 | 苏州市建筑设计研究院有限责任公司 | Automatic trap water seal device of draining pipe of air conditioner |
| CN105439098A (en) * | 2015-12-09 | 2016-03-30 | 广州创环臭氧电器设备有限公司 | Ozone water machine using raw material water for cooling |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005019918U1 (en) * | 2005-12-19 | 2006-11-23 | Steffens, Hinrich | Small-scale wastewater purification plant, comprises inlet, sludge storage for pre-clarification of the waste water, aeration basin for sequential clarification of the water, discharge pipe for pure water, and a supply device |
| CN201921666U (en) * | 2010-12-29 | 2011-08-10 | 昆明南疆制药有限公司 | Air suction system |
| CN102847476B (en) * | 2012-10-08 | 2014-03-12 | 中国矿业大学 | Pneumatic jet-type proportional foaming device |
-
2015
- 2015-11-27 CN CN201510893590.XA patent/CN105413506B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2817979Y (en) * | 2005-08-08 | 2006-09-20 | 王晓明 | Siphon injector for preventing countercurrent |
| CN201926096U (en) * | 2010-12-31 | 2011-08-10 | 苏州市建筑设计研究院有限责任公司 | Automatic trap water seal device of draining pipe of air conditioner |
| CN105439098A (en) * | 2015-12-09 | 2016-03-30 | 广州创环臭氧电器设备有限公司 | Ozone water machine using raw material water for cooling |
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| Publication number | Publication date |
|---|---|
| CN105413506A (en) | 2016-03-23 |
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