CN110803788A - Two-gear adjusting air valve device used in intermittent aeration tank of sewage treatment plant - Google Patents
Two-gear adjusting air valve device used in intermittent aeration tank of sewage treatment plant Download PDFInfo
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- CN110803788A CN110803788A CN201910965937.5A CN201910965937A CN110803788A CN 110803788 A CN110803788 A CN 110803788A CN 201910965937 A CN201910965937 A CN 201910965937A CN 110803788 A CN110803788 A CN 110803788A
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- air volume
- air
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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
- C02F7/00—Aeration of stretches of water
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention discloses a two-gear adjusting air valve device used in an intermittent aeration tank of a sewage treatment plant, which comprises a pitot tube, a controller and an adjusting valve plate, wherein the two-gear adjusting air valve device detects the air volume through the pitot tube, and adjusts the opening angle of the adjusting valve plate through the controller to control the air volume; the two-gear adjusting air valve device is attached with an air volume dial gauge, and accordingly, the air volume set value is adjusted according to the actual engineering requirement. The invention reduces the difficulty of on-site installation and debugging, saves the installation and debugging time, improves the stability of odor exhaust in the pool body under different aeration working conditions, ensures the effectiveness of different aeration working conditions, avoids the risk of harming the health of workers and polluting the environment due to the accumulation and overflow of uneven odor collection in the sewage treatment pool, and improves the operating environment of the sewage treatment plant.
Description
Technical Field
The invention belongs to the field of water treatment, and particularly relates to a two-gear adjusting air valve device for an intermittent aeration tank of a sewage treatment plant.
Background
On the premise that the odor treatment technology is relatively mature, the stability of the odor exhaust system of the sewage treatment plant is more important for controlling the diffusion of odor and the environmental control of the sewage plant, and in order to meet the social requirement on the environment, the open sewage treatment plant carries out covering and sealing treatment on the sewage treatment tank generating odor, and exhausts and collects the odor in the tank. There are two kinds of operating modes of aeration/non-aeration in the sewage treatment plant aeration tank, the required volume of airing exhaust under the aeration operating mode is changeable according to engineering needs, therefore the blast gate device can adapt to changeable air volume operating mode of airing exhaust, the collection process of airing exhaust of odor needs to be controlled better, improve the stability of airing exhaust in the pond, ensure the validity of different aeration operating modes, thereby avoid airing exhaust unevenly because of the odor and lead to gathering the risk of excessive harm workman's health and polluted environment. At present, two-gear adjusting air valve devices applied to an intermittent aeration tank of a sewage treatment plant do not exist, odor can be timely, uniformly and effectively discharged by setting in place under different aeration working conditions, and the construction difficulty and time cost of equipment installation and debugging can be reduced.
Disclosure of Invention
The invention provides a two-gear adjusting air valve device used in an intermittent aeration tank of a sewage treatment plant, which transmits an air volume signal through a differential pressure sensor and displays the air volume signal through an indicator light; the air quantity is controlled by adjusting the opening angle of the regulating valve plate through the air quantity setter; and adjusting the set values of air volume under different practical projects through an air volume dial gauge. The two-gear adjusting air valve device is simple in model selection, simple and convenient to adjust, simple and easy to test and simple and direct in function.
In order to achieve the technical effects, the invention adopts the following technical scheme:
the utility model provides a two grades of blast gate devices of adjusting for sewage treatment plant intermittent type aeration pond which characterized in that: the device is internally provided with an adjusting valve plate which is used for adjusting the air quantity passing through the device; the device is provided with a pitot tube, and the actual air quantity passing through the device is measured through a differential pressure sensor in the device; a controller is fixed on the outer side of the device, is electrically connected with a pitot tube arranged on the device, and feeds back the measured actual air volume to the controller; the controller comprises an air volume setter for setting an air volume set value, the controller is connected with the regulating valve plate, and the regulating valve plate is controlled to be rotationally opened and closed to meet the air volume requirement according to the measured actual air volume and the air volume set value.
Further, the air volume setter is used for setting a maximum air volume and a minimum air volume, controlling the opening angle of the regulating valve plate when the actual air volume is smaller than the minimum air volume so as to increase the air volume, and controlling the opening angle of the regulating valve plate when the actual air volume is larger than or equal to the maximum air volume so as to decrease the air volume.
Furthermore, the intermittent aeration tank of the sewage treatment plant is provided with a plurality of exhaust pipes, and each exhaust pipe is provided with a two-gear adjusting air valve device for controlling the exhaust volume of the exhaust pipe.
As an improvement of the invention, the controller is externally provided with a transparent cover for protection, so that the inadvertent misoperation and corrosive gas erosion are avoided.
As an improvement of the invention, an air quantity dial gauge is attached to the outer side of the two-gear adjusting air valve device, and accordingly, the air quantity set value is adjusted according to the actual engineering requirement.
The invention has the beneficial effects that:
the two-gear adjusting air valve device is used for air exhaust control of an air volume changing system, under different aeration working conditions, the two-gear adjusting air valve device can conveniently set air volume through the air volume setter, performance test can be carried out through the test button, and function inspection can be carried out through the indicator lamp. The invention reduces the difficulty of on-site installation and debugging, saves the installation and debugging time, improves the stability of odor exhaust in the pool body under different aeration working conditions, ensures the effectiveness of different aeration working conditions, avoids the risk of harming the health of workers and polluting the environment due to the accumulation and overflow of uneven odor collection in the sewage treatment pool, and improves the operating environment of the sewage treatment plant.
Drawings
FIG. 1 is a three-dimensional view of a two-position modulating damper assembly according to the present invention;
FIG. 2 is a side plan view of the controller of the two-position adjustment damper assembly of the present invention;
FIG. 3 is a side plan view of the adjustment flap of the two-position adjustment damper assembly of the present invention;
FIG. 4 is an example of the application of the two-stage regulating air valve device of the present invention in an intermittent aeration tank;
FIG. 5 is a logic diagram of the air volume control of the batch aeration tank;
FIG. 6 is a diagram of a deodorizing and collecting system according to a first aeration condition of the intermittent aeration tank.
List of reference numerals:
in the figure: 1. the air quantity measuring device comprises a pitot tube (comprising a differential pressure sensor), 2, a controller, 3, a transparent cover, 4, valve plate position indication, 5, an adjusting valve plate, 6, an air quantity setter, 7, an indicator light, 8, an air quantity dial gauge, 9 and a test button.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby. It should be noted that the words "left", "center" and "right" used in the following description refer to directions in the drawings.
As shown in fig. 1, 2 and 3, the two-gear adjusting air valve device of the invention comprises a pitot tube (including a differential pressure sensor) 1, a controller 2, a transparent cover 3, a valve plate position indicator 4, an adjusting valve plate 5 and the like. The two-gear adjusting air valve device comprises a square aluminum box which is fixed through an M8 bolt, is 1000mm long, 1000mm wide and 400mm high in size, and a controller is fixed on the outer side of the device and is connected with a pitot tube through a wiring terminal to receive and display an air volume signal. The adjusting valve plate 5 is connected with the two sides of the device and can be rotationally opened and closed for 360 degrees according to the setting of the air volume setter so as to meet the air volume requirement. Therefore, the invention is an integrated air valve device integrating air quantity test, air quantity setting and air quantity adjustment.
The controller 2 comprises an air quantity setter 6, an indicator light 7 and a test button 9. The air quantity setter is used for setting the maximum air quantity and the minimum air quantity, controlling the opening angle of the regulating valve plate when the actual air quantity is smaller than the minimum air quantity to increase the air quantity, and controlling the opening angle of the regulating valve plate when the actual air quantity is larger than or equal to the maximum air quantity to decrease the air quantity.
The air quantity setting device can set the maximum air quantity according to different working conditionsLarge air volume (V)max) And setting a minimum air volume (V)min) If set VminHigher than VmaxEven if there is control signal transmission, it is VminAnd (5) operating at a fixed air volume.
The indicator light displays the following functional signals: lighting = set; flicker = set value not yet reached; lamp-out = no input voltage, and the set air volume is adjusted accordingly.
An air volume dial gauge 8 is attached to the surface of the device, and accordingly the air volume set value can be adjusted on site according to actual operation conditions.
The test button 9 is used for performing performance debugging before operation: the test button is held for more than 1 second, and the actuator is tested in the sequence of fully closed → fully open → reset.
FIG. 4 is a plan view of 1/4 deodorizing air pipes of an intermittent aeration tank in a certain project, which can be regarded as a 'Jiugong tank' with equal areas of all cells, each cell is provided with an air outlet, the air outlets (three cells in a row) of each row of tank bodies are connected to deodorizing equipment through an air outlet pipe, and the tail end of each air pipe is provided with a two-gear adjusting air valve device of the invention to control the air outlet amount of the air pipe in the row. FIG. 5 is the logical diagram of the air quantity control of each pool set by a certain engineering according to different aeration working conditions. Taking the first process aeration condition in fig. 6 as an example, the left and middle two rows of tanks are aeration tanks, the right row of tanks is non-aeration tanks, and the odor exhaust air volume required under the conditions of meeting odor treatment technical rules of urban sewage treatment plants and the tail-end set exhaust total volume is 27000CMH, 27000CMH and 12000CMH from left to right. Selecting two-gear adjusting air valve devices with the air quantity range of 0-54000 CMH according to different aeration working conditions, and adjusting an air quantity dial gauge attached to the two-gear adjusting air valve devices on the left column to set the maximum air quantity (V) by an air quantity settermax) The value is 50% and the set minimum air volume (V)min) The value is 25%; the air quantity scale adjustment air quantity setter attached to the middle-row two-gear adjusting air valve device sets the maximum air quantity (V)max) The value is 66% and the set minimum air volume (V)min) The value is 50%; the air quantity scale adjustment air quantity setter attached to the two-gear adjusting air valve device on the right row sets the minimum air quantity (V)min) The value is 25%, setMaximum air volume (V)max) There was no conditioning effect at this time. Thereby adjusting the opening angle of the adjusting valve plate 5. And (3) feeding back and judging whether the actual air volume reaches the set air volume or not through a functional signal displayed by an indicator lamp on the controller 2, and adjusting the air volume regulating valve plate 5 according to the actual air volume until the set air volume is met. In the project, the device has the advantages of high integration level, low debugging difficulty, convenient installation and good air exhaust stability.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (5)
1. The utility model provides a two grades of blast gate devices of adjusting for sewage treatment plant intermittent type aeration pond which characterized in that: the device is internally provided with an adjusting valve plate which is used for adjusting the air quantity passing through the device; the device is provided with a pitot tube, and the actual air quantity passing through the device is measured through a differential pressure sensor in the device; a controller is fixed on the outer side of the device, is electrically connected with a pitot tube arranged on the device, and feeds back the measured actual air volume to the controller; the controller comprises an air volume setter for setting an air volume set value, the controller is connected with the regulating valve plate, and the regulating valve plate is controlled to be rotationally opened and closed to meet the air volume requirement according to the measured actual air volume and the air volume set value.
2. The two-stage damper device according to claim 1, wherein the air volume setter sets a maximum air volume and a minimum air volume, controls the opening angle of the damper flap to increase the air volume when the actual air volume is smaller than the minimum air volume, and controls the opening angle of the damper flap to decrease the air volume when the actual air volume is equal to or greater than the maximum air volume.
3. The two-stage adjusting air valve device as claimed in claim 1, wherein the intermittent aeration tank of the sewage treatment plant is provided with a plurality of exhaust pipes, and each exhaust pipe is provided with one two-stage adjusting air valve device for controlling the exhaust amount of the exhaust pipe.
4. The two-position adjusting damper assembly according to claim 1, wherein the controller is externally provided with a transparent cover to prevent inadvertent malfunction and corrosive gas attack.
5. The two-gear adjusting air valve device as claimed in claim 1, wherein an air volume scale is attached to the outer side of the two-gear adjusting air valve device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910965937.5A CN110803788A (en) | 2019-10-12 | 2019-10-12 | Two-gear adjusting air valve device used in intermittent aeration tank of sewage treatment plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910965937.5A CN110803788A (en) | 2019-10-12 | 2019-10-12 | Two-gear adjusting air valve device used in intermittent aeration tank of sewage treatment plant |
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| CN110803788A true CN110803788A (en) | 2020-02-18 |
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| CN201910965937.5A Pending CN110803788A (en) | 2019-10-12 | 2019-10-12 | Two-gear adjusting air valve device used in intermittent aeration tank of sewage treatment plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893898A (en) * | 2022-07-14 | 2022-08-12 | 中国海洋大学 | Intelligent air valve easy to install |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102029203A (en) * | 2010-10-25 | 2011-04-27 | 广州市泛美实业有限公司 | Control system of laboratory variable air volume (VAV) fume hood |
| CN207570075U (en) * | 2017-12-12 | 2018-07-03 | 湖南普信工程技术有限公司 | A kind of laboratory ventilation management control system |
| CN108302726A (en) * | 2016-09-26 | 2018-07-20 | 苏州天弘益华机电有限公司 | A kind of laboratory multistage ventilated energy-saving control system |
| CN208407995U (en) * | 2018-05-16 | 2019-01-22 | 广东坤灵净化设备有限公司 | A kind of automatic adjustment air quantity vent cabinet |
-
2019
- 2019-10-12 CN CN201910965937.5A patent/CN110803788A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029203A (en) * | 2010-10-25 | 2011-04-27 | 广州市泛美实业有限公司 | Control system of laboratory variable air volume (VAV) fume hood |
| CN108302726A (en) * | 2016-09-26 | 2018-07-20 | 苏州天弘益华机电有限公司 | A kind of laboratory multistage ventilated energy-saving control system |
| CN207570075U (en) * | 2017-12-12 | 2018-07-03 | 湖南普信工程技术有限公司 | A kind of laboratory ventilation management control system |
| CN208407995U (en) * | 2018-05-16 | 2019-01-22 | 广东坤灵净化设备有限公司 | A kind of automatic adjustment air quantity vent cabinet |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893898A (en) * | 2022-07-14 | 2022-08-12 | 中国海洋大学 | Intelligent air valve easy to install |
| CN114893898B (en) * | 2022-07-14 | 2022-09-30 | 中国海洋大学 | Intelligent air valve easy to install |
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