CN217909701U - On-spot collection device of sewage volatile gas - Google Patents

Abstract

The utility model relates to an on-site collection device for volatilized gas from sewage, which comprises: a gas collecting device, the interior of which is hollow, and an air inlet part and an air outlet part are arranged on the top; several baffle plates are all arranged inside the gas collecting device, and Parallel and staggered to form an S-shaped flow channel for the gas to flow inside the gas collection device, the S-shaped flow channel communicates with the air inlet and the air outlet; A filter element for filtering sewage volatile gas, which is respectively connected to the external air environment and the air intake part through a pipeline; a collection bottle, which stores a gas absorption medium for absorbing sewage volatile gas, and is connected to the gas outlet part through a pipeline; and a vacuum pump, It communicates with the collection bottle. The application can realize accurate on-site collection of sewage volatile gas, has wide adaptability, and can flexibly adjust the collection conditions of different gases.

Description

Sewage volatile gas on-site collection device

technical field

The utility model relates to the collection of ambient gas, in particular to an on-site collection device for volatilized gas from sewage.

Background technique

Sewage produces a large amount of malodorous gases and greenhouse gases, which is a potential threat to public health and safety. Therefore, accurate collection of volatile gases on the sewage water surface and determination of their composition and content have reference significance for the risk assessment of sewage volatile gases and the selection and application of sewage treatment technologies. However, there is currently no device that can accurately collect sewage volatile gas at the production site. A new collection device for collecting sewage volatile gas on site is proposed here to solve the above problems.

Utility model content

(1) Solved technical problems

The utility model provides an on-site collection device for sewage volatilized gas, which solves the technical problem of accurately collecting various gases produced by the sewage on site.

(2) Technical solution

In order to achieve the above-mentioned purpose of accurately collecting the gas produced by sewage on site, the utility model provides an on-site collection device for sewage volatile gas, which includes:

The air collecting device is hollow inside, and the top is provided with an air inlet and an air outlet;

A plurality of baffles, which are all arranged inside the gas collection device, and are arranged parallel to each other and staggered to form an S-shaped flow channel for gas to flow inside the gas collection device, and the S-shaped flow channel and the air inlet part , The gas outlet is connected;

The air intake filter bottle stores a filter element for filtering the volatile gas of the sewage, and is connected to the external air environment and the air intake part through pipes;

A collection bottle, which stores a gas-absorbing medium for absorbing volatile gases from sewage, and communicates with the gas outlet through a pipeline;

And a vacuum pump, which communicates with the collection bottle.

Preferably, the surface of the baffle is coated with polytetrafluoroethylene coating.

Preferably, the on-site sewage volatile gas collection device further includes: a floating body connected to the gas collection device.

Preferably, the buoyant body comprises foam or inflatable bladders.

Preferably, the on-site sewage volatile gas collection device further includes: a buffer bottle, which is arranged between the collection bottle and the vacuum pump, and communicates with the collection bottle and the vacuum pump through pipelines.

Preferably, the capacity of the filter bottle, collection bottle and buffer bottle is 500-1000mL.

Preferably, the power of the vacuum pump is 35-50W, and the control range of the air flow rate is 0.1-30L/min.

Preferably, the air inlet/outlet include:

a shell, which is hollow inside and communicates with the S-shaped flow channel;

a filter screen installed inside the housing;

filter membrane, which is attached to the surface of the filter screen;

a cover, which is detachably connected to the housing;

And an opening, which is opened on the cover and communicates with the inside of the housing.

(3) Beneficial effects

Compared with the prior art, the utility model provides a device for collecting volatilized gas from sewage on site, which has the following beneficial effects:

The structure design of the application and the steps of use are simple. It can realize accurate collection of sewage volatile gas on site, has wide adaptability, and can flexibly adjust the collection conditions of different gases, which is of great significance for evaluating the pollution risk of sewage volatile gas.

Description of drawings

Fig. 1 is the overall structural diagram of the on-site collection device for sewage volatilized gas of the utility model;

Fig. 2 is the front view of the structure of the sewage volatile gas field collection device of the utility model;

Fig. 3 is the internal structural diagram of the gas collecting device of the present utility model;

Fig. 4 is a structural diagram of the air inlet/outlet of the utility model.

Detailed ways

The following will clearly and completely describe the technical solutions and application procedures in some embodiments in conjunction with the drawings in the embodiments of the present invention.

Example 1:

Please refer to Fig. 1-3, present embodiment provides a kind of sewage volatilization gas on-site collection device, it comprises:

The gas collection device 1 is hollow inside, and the top is provided with an air inlet part 3 and an air outlet part 4; the contact area between the gas collection device 1 and the water surface of the sewage water body is known, and it generally floats in the sewage water body; the sewage water body can produce Sewage volatile gases, such as sulfur dioxide, ammonia, etc.;

A plurality of baffles 12, which are arranged inside the gas collecting device 1, are arranged parallel to each other and staggered to form an S-shaped flow channel 100 for gas to flow inside the gas collecting device 1, and the S-shaped flow channel 100 communicates with the air inlet part 3 and the air outlet part 4; preferably, the surface of the baffle plate 12 is coated with a polytetrafluoroethylene coating, which has excellent chemical stability, corrosion resistance, sealing performance, and high lubricating and non-stick properties , Electrical insulation and good anti-aging endurance, avoid adverse reactions between gas and baffle 12, and prolong its service life;

Air intake filter bottle 2, its internal storage is used to filter the volatile gas of sewage (the filter core is only used to filter the solid particles in the volatile gas of sewage by physical adsorption, such as dust, and will not produce volatile gas with sewage. The chemical reaction will not change the quality of the volatile gas in the sewage, nor will it affect the flow of the volatile gas in the sewage), and it is connected to the external air environment and the air intake part 3 through the pipeline;

Collecting bottle 5, its internal storage is used for absorbing the gas absorption medium of sewage volatilization gas (the gas absorption medium can be liquid substance, solid substance, can produce chemical reaction or physical adsorption with sewage volatilization gas), and communicates with described via pipeline Gas outlet 3;

And a vacuum pump 7, which communicates with the collection bottle 5.

The working process of the sewage volatile gas field collection device in this embodiment is as follows:

The shape and specification of the bottom surface of the gas collection device 1 can be designed according to actual needs (for example, the bottom surface is a square with a side length of 3m or a circle with a diameter of 2m). When in use, the gas collection device 1 is directly placed on the sewage water body to make it float , the bottom surface area of the gas collecting device 1 is the contact area with the water surface of the sewage water body, and other parts, such as the intake filter bottle 2, the collection bottle 5, and the vacuum pump 7, can be placed on the ground, and the sewage water body can produce volatile gas;

Start the vacuum pump 7 and start timing. The air around the gas collecting device 1 and containing the volatilized gas of sewage enters the intake filter bottle 2 under negative pressure, and the solid particles such as dust in it are filtered by the filter element to remove the influence of impurities, and the remaining gas passes through. The pipeline enters the air intake part 3, then enters the S-shaped flow channel 100 and flows in an S-shape in the direction indicated by the arrow, and then flows into the collection bottle 5 through the air outlet part 4, and the collection bottle 5 absorbs the volatile gas of the sewage to ensure that the sewage volatilizes The gas is completely collected, and the remaining gas continues to be discharged from the vacuum pump 7, and the vacuum pump 7 ends its work after running for a certain period of time.

Then, according to the law of mass conservation, the total mass of the sewage volatile gas is obtained through the weight change of the collecting bottle 5 before and after gas collection, or the content of the sewage volatile gas absorbed in the gas absorption medium is determined by a chemical method.

Then according to the contact area between the gas collecting device 1 and the water surface of the sewage water body, the collection time (i.e. the time between the start of timing and the end of the timing) is converted into the amount of sewage volatilization gas produced in unit time by the sewage of the unit contact area, to realize the sewage treatment Precise on-site collection of volatile gases.

Example 2:

The only difference between this embodiment and Embodiment 1 is that the sewage volatile gas on-site collection device also includes:

A floating body 11 (such as a foam or an inflatable air bag, etc.), which is connected to the gas collecting device 1 to provide sufficient buoyancy for the gas collecting device 1;

And the buffer bottle 6, which is arranged between the collection bottle 5 and the vacuum pump 7, communicates with the collection bottle 5 and the vacuum pump 7 through pipelines, so as to prevent the gas absorption medium in the collection bottle 5 from being sucked in the vacuum pump 7.

The capacity of the filter bottle 2, collection bottle 5 and buffer bottle 6 is 500-1000mL, the power of the vacuum pump 7 is 35-50W, and the air flow rate is 0.1-30L/min.

At the same time, the gas absorption medium in the filter bottle 2 and the collection bottle 5 can be replaced according to the type of sewage volatile gas to be collected, so as to realize flexible adjustment to different gas collection conditions.

Example 3:

The only difference between this embodiment and Embodiment 1 or 2 is that the air inlet portion 3/air outlet portion 4 includes:

The housing 10 is hollow inside and communicates with the S-shaped flow channel 100;

a filter screen 20 installed inside the housing 10;

A filter membrane (not shown), which is attached to the surface of the filter screen 20;

a cover 30, which is detachably connected to the housing 10;

And an opening 40, which is opened on the cover 30 and communicates with the inside of the housing 10;

Gas can enter the housing 10 and flow through the filter 20 , filter membrane, and opening 40 .

Thus, when the gas flows in the inlet part 3/outlet part 4, the solid particles and microorganisms in the gas can be further filtered through the filter screen 20 and the filter membrane, so as to avoid pipeline blockage and collect microorganisms.

To sum up, the structure design and application steps of this application are simple. It can realize the precise collection of sewage volatile gas, has wide adaptability, and can flexibly adjust the collection conditions of different gases, which is helpful for evaluating the pollution risk of sewage volatile gas. important meaning.

It should be noted that the above-mentioned embodiments and descriptions are only some preferred examples of the present invention, and the basic principles and main features of the present invention are not limited by the above-mentioned embodiments, without departing from the spirit and scope of the present invention. Under the present invention, there will be various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. A sewage volatile gas on-site collection device, characterized in that it comprises: The air collecting device is hollow inside, and the top is provided with an air inlet and an air outlet; A plurality of baffles, which are all arranged inside the gas collection device, and are arranged parallel to each other and staggered to form an S-shaped flow channel for gas to flow inside the gas collection device, and the S-shaped flow channel and the air inlet part , The gas outlet is connected; The air intake filter bottle stores a filter element for filtering the volatile gas of the sewage, and is connected to the external air environment and the air intake part through pipes; A collection bottle, which stores a gas-absorbing medium for absorbing volatile gases from sewage, and communicates with the gas outlet through a pipeline; And a vacuum pump, which communicates with the collection bottle. 2. The on-site collection device for sewage volatile gas according to claim 1, characterized in that: the surface of the baffle plate is coated with polytetrafluoroethylene coating. 3. The on-site sewage volatile gas collection device according to claim 1, characterized in that: the sewage volatile gas on-site collection device further comprises: a floating body connected to the gas collection device. 4. The on-site sewage volatile gas collection device according to claim 3, characterized in that: the floating body comprises foam or an inflatable air bag. 5. The sewage volatile gas on-site collection device according to claim 1, characterized in that: the sewage volatile gas on-site collection device also includes: a buffer bottle, which is arranged between the collection bottle and the vacuum pump, and is respectively connected to the vacuum pump through the pipeline. The collection bottle and the vacuum pump are connected. 6. The on-site collection device for sewage volatile gas according to claim 5, characterized in that: the capacities of the filter bottle, collection bottle and buffer bottle are all 500-1000mL. 7. The on-site sewage volatile gas collection device according to claim 1, characterized in that: the power of the vacuum pump is 35-50W, and the control range of the air flow rate is 0.1-30L/min. 8. The sewage volatile gas on-site collection device according to claim 1, characterized in that: the air inlet/outlet part includes: a shell, which is hollow inside and communicates with the S-shaped flow channel; a filter screen installed inside the housing; filter membrane, which is attached to the surface of the filter screen; a cover, which is detachably connected to the housing; And an opening, which is opened on the cover and communicates with the inside of the housing.

Images