CN109990448B - Venturi tube negative-pressure drainage system for central air conditioner - Google Patents
Venturi tube negative-pressure drainage system for central air conditioner Download PDFInfo
- Publication number
- CN109990448B CN109990448B CN201910317391.2A CN201910317391A CN109990448B CN 109990448 B CN109990448 B CN 109990448B CN 201910317391 A CN201910317391 A CN 201910317391A CN 109990448 B CN109990448 B CN 109990448B
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- air conditioner
- separation device
- water separation
- outlet
- communicated
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000000926 separation method Methods 0.000 claims abstract description 35
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000004378 air conditioning Methods 0.000 description 8
- 230000003068 static effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a venturi negative pressure drainage system for a central air conditioner, which comprises a venturi, a steam-water separation device and a main drain pipe, wherein a high-pressure fluid inlet of the venturi is communicated with the inside of an air conditioner fan outlet air pipe, a suction inlet of the venturi is communicated with the bottom in an air conditioner drainage tank, the main drain pipe is communicated to the air conditioner drainage tank, the steam-water separation device is arranged at a high position, an outlet of the venturi is communicated with an inlet on one side of the steam-water separation device through a pipeline, and a liquid outlet on the bottom of the steam-water separation device is communicated to the main drain pipe through a pipeline bypass. The invention adopts the venturi tube to utilize the air pressure at the outlet of the air conditioner fan to attract the air conditioner condensate to the high-position steam-water separation device, and the water separated in the high-position steam-water separation device overcomes the negative pressure of the air treatment section by utilizing the height difference, thereby being smoothly discharged.
Description
Technical Field
The invention relates to the field of air conditioner drainage systems, in particular to a venturi negative pressure drainage system for a central air conditioner.
Background
In the central air conditioning air treatment section, the air conditioning treatment section is in a negative pressure state under the induced air effect of the fan, namely the pressure is lower than the atmospheric pressure. In this case, the condensate generated by the air conditioner cannot be smoothly discharged, and various damages such as rusted air treatment units, short circuits, excessive air humidity, water leakage to an air conditioner room and the like are caused by accumulation in the air treatment section. The conventional method for treating the problem is to arrange a U-shaped pipe at the condensation port of the air conditioner, and the negative pressure of the air treatment section is counteracted by utilizing the height difference of the U-shaped pipe to realize water drainage. However, this approach requires a relatively high foundation and base of the air treatment unit, and the piping is prone to snagging on maintenance operators, etc., which is disadvantageous.
The invention aims to provide a venturi negative pressure drainage system for a central air conditioner, which aims to solve the problem that the installation and the use of U-shaped pipe drainage adopted by the central air conditioner in the prior art are inconvenient.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a venturi negative pressure drainage system for central air conditioning, adopts venturi as negative pressure drainage system, its characterized in that: the air conditioner comprises a venturi tube, a steam-water separation device and a total drain pipe, wherein a high-pressure fluid inlet of the venturi tube is communicated with an outlet air pipe of an air conditioner fan through a connecting pipe, a suction inlet of the venturi tube is communicated with the bottom of an air conditioner drain tank through a pipeline, one end of the total drain pipe is communicated to the bottom of the air conditioner drain tank, the steam-water separation device is installed at a high position relative to the venturi tube, the air conditioner drain tank and the total drain pipe, an inlet is formed in one side of the steam-water separation device, a liquid outlet is formed in the bottom of the steam-water separation device, a gas outlet is formed in the top of the steam-water separation device, an outlet of the venturi tube is communicated with the inlet of the steam-water separation device through a pipeline, and the liquid outlet of the steam-water separation device is communicated to the total drain pipe through a pipeline bypass.
The venturi negative pressure drainage system for the central air conditioner is characterized in that: the lowest point of the bottom of the steam-water separation device is higher than the highest point of the venturi tube, the air conditioner drainage tank and the main drainage pipe.
The venturi negative pressure drainage system for the central air conditioner is characterized in that: the bottom of the air conditioner drainage tank is provided with a drainage outlet which is communicated with the inlet of a one-way valve through a pipeline, and the outlet of the one-way valve is communicated with one end of the main drainage pipe through a pipeline.
The venturi negative pressure drainage system for the central air conditioner is characterized in that: the end of the connecting pipe connected with the high-pressure fluid inlet of the Venturi tube is provided with a pipe joint, and the pipe joint is opposite to the air flow direction of the air duct in the air outlet pipe of the air conditioner fan so as to be fully beneficial to static pressure and dynamic pressure of the fan.
The venturi negative pressure drainage system for the central air conditioner is characterized in that: the outlet of the venturi tube is connected to the main drain pipe through a U-shaped pipe bypass.
In the invention, when the air conditioner fan works, the dynamic pressure and the static pressure generated by the fan can be utilized to drive the venturi tube to convey the air conditioner condensate to the high-level steam-water separation device. The static pressure of water column generated by the height of the steam-water separation device is enough to overcome the negative pressure of the air conditioning treatment section, the condensate water after the air is separated in the steam-water separation device overcomes the negative pressure of the air conditioning treatment section by utilizing the high level difference, the condensate water is discharged to the total drain pipe through the U-shaped pipe by the outlet, and the separated air enters the air treatment section to continuously flow along with the air. In addition, after the fan of the air treatment section stops working, the condensate water remained in the air treatment section can be continuously discharged through the bottom water outlet connected with the one-way valve at the lower part of the air conditioner water draining groove.
Compared with the prior art, the invention has the advantages that:
1. the device does not need manual operation and electrical control, does not have complex mechanical moving parts, and can automatically realize the condensate water draining function of the air conditioner by using the pressure of the outlet of the air conditioner fan through the Venturi tube.
2. And the smooth drainage can be realized under the conditions of high negative pressure, low negative pressure and air conditioner shutdown.
3. The venturi tube is simple to use and maintain, has no moving parts, and has extremely low maintenance cost.
4. The negative pressure stop function is achieved, and peculiar smell gas in the drainage pipeline is completely prevented from entering an air-conditioning room through the air treatment section due to negative pressure of the air treatment section through the one-way valve and the U-shaped pipe.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and examples.
As shown in FIG. 1, a venturi negative pressure drainage system for a central air conditioner comprises a venturi tube 1, a steam-water separation device 7 and a total drainage tube 4, wherein a high-pressure fluid inlet 1a of the venturi tube 1 is communicated with an outlet air tube 3 of an air conditioner fan through a connecting tube 2, a suction inlet 1b of the venturi tube 1 is communicated with the bottom in an air conditioner drainage groove 6 through a pipeline, one end of the total drainage tube 4 is communicated to the bottom of the air conditioner drainage groove 6, the steam-water separation device 7 is arranged at a high position relative to the venturi tube 1, the air conditioner drainage groove 6 and the total drainage tube 4, an inlet 7a is arranged on one side of the steam-water separation device 7, a liquid outlet 7c is arranged at the bottom of the steam-water separation device 7, a gas outlet 7b is arranged at the top of the steam-water separation device 7, the outlet of the venturi tube 1 is communicated with the inlet 7a of the steam-water separation device 7 through a pipeline, and the liquid outlet 7c of the steam-water separation device 7 is communicated to the total drainage tube 4 through a pipeline bypass.
The lowest point of the bottom of the steam-water separation device 7 is higher than the highest point of the venturi tube 1, the air conditioner drainage tank 6 and the total drainage pipe 4.
The bottom of the air conditioner drainage tank 6 is provided with a drainage outlet 6a, the drainage outlet 6a is communicated with the inlet of one check valve 5 through a pipeline, and the outlet of the check valve 5 is communicated with one end of the main drainage pipe 4 through a pipeline.
The end part of the connecting pipe 2 connected with the high-pressure fluid inlet 1a of the Venturi tube 1 is provided with a pipe joint 2a, and the pipe joint 2a is opposite to the air flow direction of the air duct in the air conditioner fan outlet air pipe 3.
The outlet of the venturi 1 is by-passed to the mains drain 4 by a U-pipe 8.
A small amount of high-pressure air from the rear of the air conditioner fan outlet air pipe 3 enters the high-pressure fluid inlet 1a of the venturi tube 1 through the connecting pipe 2, and due to the drainage effect generated by the venturi tube 1, the condensed water in the air conditioner drainage tank 6 continuously enters the venturi tube 1, flows through the outlet 1c of the outflow venturi tube 1 together with the air flow, and enters the high-level steam-water separation device 7, wherein the air is discharged from the upper outlet 7b and returns to the air treatment section, and the condensed water flows into the U-shaped pipe from 7 c; by means of the height difference of the high-order steam-water separation device 7, the condensate generates enough static pressure, overcomes the negative pressure of the air treatment section in the U-shaped pipe and is discharged to the main drain pipe.
In addition, after the air conditioning fan of the air treatment section is stopped, the venturi tube 1 loses power, and at the moment, the condensate water flows to the one-way valve 5 through the water outlet 6a at the lower part of the air conditioning drainage tank 6 and can still be discharged to the main drainage pipe.
The invention realizes smooth drainage under the condition of negative pressure and zero static pressure of the air treatment section by the mode.
The above examples are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the scope of protection defined by the claims of the present invention without departing from the spirit of the present invention.
Claims (3)
1. A venturi negative pressure drainage system for a central air conditioner is characterized in that: the device comprises a venturi tube, a vapor-water separation device and a main drain pipe, wherein a high-pressure fluid inlet of the venturi tube is communicated with the inside of an outlet air tube of an air conditioner fan through a connecting tube, a suction inlet of the venturi tube is communicated with the inside of an air conditioner drain tank through a pipeline, one end of the main drain pipe is communicated to the bottom of the air conditioner drain tank, the vapor-water separation device is installed at a high position relative to the venturi tube, the air conditioner drain tank and the main drain pipe, one side of the vapor-water separation device is provided with an inlet, the bottom of the vapor-water separation device is provided with a liquid outlet, the top of the vapor-water separation device is provided with a gas outlet, the outlet of the venturi tube is communicated with the inlet of the vapor-water separation device through a pipeline, and the liquid outlet of the vapor-water separation device is communicated to the main drain pipe through a pipeline bypass;
the lowest point of the bottom of the steam-water separation device is higher than the highest point of the venturi tube, the air conditioner drainage tank and the main drainage pipe;
the bottom of the air conditioner drainage tank is provided with a drainage outlet which is communicated with the inlet of a one-way valve through a pipeline, and the outlet of the one-way valve is communicated with one end of the main drainage pipe through a pipeline.
2. The venturi negative pressure drainage system for a central air conditioner according to claim 1, wherein: the end of the connecting pipe connected with the high-pressure fluid inlet of the Venturi tube is provided with a pipe joint, and the pipe joint is opposite to the air flow direction of the air duct in the air outlet pipe of the air conditioner fan.
3. The venturi negative pressure drainage system for a central air conditioner according to claim 1, wherein: the outlet of the venturi tube is connected to the main drain pipe through a U-shaped pipe bypass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317391.2A CN109990448B (en) | 2019-04-19 | 2019-04-19 | Venturi tube negative-pressure drainage system for central air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317391.2A CN109990448B (en) | 2019-04-19 | 2019-04-19 | Venturi tube negative-pressure drainage system for central air conditioner |
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| Publication Number | Publication Date |
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| CN109990448A CN109990448A (en) | 2019-07-09 |
| CN109990448B true CN109990448B (en) | 2024-01-12 |
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| CN201910317391.2A Active CN109990448B (en) | 2019-04-19 | 2019-04-19 | Venturi tube negative-pressure drainage system for central air conditioner |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110419998A (en) * | 2019-07-16 | 2019-11-08 | 佛山市顺德区美的洗涤电器制造有限公司 | Dish-washing machine and its drainage system and water discharge method |
| CN110403546A (en) * | 2019-07-16 | 2019-11-05 | 佛山市顺德区美的洗涤电器制造有限公司 | Drainage system of dish-washing machine, water discharge method and dish-washing machine |
| CN110301878A (en) * | 2019-07-16 | 2019-10-08 | 佛山市顺德区美的洗涤电器制造有限公司 | Drainage system, water discharge method and dish-washing machine |
| CN113529368B (en) * | 2021-07-26 | 2024-03-05 | 无锡小天鹅电器有限公司 | Household appliance base assembly and household appliance |
| CN116768375B (en) * | 2023-08-16 | 2024-06-25 | 郑州市郑东新区水务有限公司 | Foam filamentous fungus cleaning device on surface of biological pond |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4885084A (en) * | 1988-06-22 | 1989-12-05 | Flint & Walling, Inc. | Nozzle/venturi with pressure differentiating bypass |
| JP2008114661A (en) * | 2006-11-01 | 2008-05-22 | Denso Corp | Condensed water discharging device |
| CN103374965A (en) * | 2012-04-28 | 2013-10-30 | 上海老港废弃物处置有限公司 | Venturi self-circulation negative-pressure drainage system of refuse landfill |
| CN203571924U (en) * | 2013-09-30 | 2014-04-30 | 西安福安创意咨询有限责任公司 | Earth energy central air conditioner provided with Venturi tubes |
| CN104515224A (en) * | 2013-09-30 | 2015-04-15 | 西安福安创意咨询有限责任公司 | Earth-energy central air conditioner with Venturi tubes |
| CN105890003A (en) * | 2016-04-28 | 2016-08-24 | 湖南理工学院 | Non-cleaning smoke exhaust ventilator |
| CN210035831U (en) * | 2019-04-19 | 2020-02-07 | 合肥天鹅制冷科技有限公司 | Venturi tube negative pressure drainage system for central air conditioner |
-
2019
- 2019-04-19 CN CN201910317391.2A patent/CN109990448B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4885084A (en) * | 1988-06-22 | 1989-12-05 | Flint & Walling, Inc. | Nozzle/venturi with pressure differentiating bypass |
| JP2008114661A (en) * | 2006-11-01 | 2008-05-22 | Denso Corp | Condensed water discharging device |
| CN103374965A (en) * | 2012-04-28 | 2013-10-30 | 上海老港废弃物处置有限公司 | Venturi self-circulation negative-pressure drainage system of refuse landfill |
| CN203571924U (en) * | 2013-09-30 | 2014-04-30 | 西安福安创意咨询有限责任公司 | Earth energy central air conditioner provided with Venturi tubes |
| CN104515224A (en) * | 2013-09-30 | 2015-04-15 | 西安福安创意咨询有限责任公司 | Earth-energy central air conditioner with Venturi tubes |
| CN105890003A (en) * | 2016-04-28 | 2016-08-24 | 湖南理工学院 | Non-cleaning smoke exhaust ventilator |
| CN210035831U (en) * | 2019-04-19 | 2020-02-07 | 合肥天鹅制冷科技有限公司 | Venturi tube negative pressure drainage system for central air conditioner |
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| CN109990448A (en) | 2019-07-09 |
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