KR102051468B1 - Gas collecting device in waste landfill - Google Patents

Abstract

The present invention relates to a device for collecting gas in a waste landfill, comprising a collecting unit, a pressure measuring unit, a controlling unit, a middle chamber, and a gas supplying pipe to collect gas generated from buried waste of a waste landfill and supply the gas to a necessary place. The collecting unit passes the gas transmitted from a collecting pipe in a buried waste layer therethrough and includes an orifice member in a gas flow path. The pressure measuring unit is mounted in the collecting unit in necessary and measures a pressure difference between gas before and after passing the orifice member. The controlling unit calculates a gas inflow based on measured contents of the pressure measuring unit. The middle chamber receives gas for passing the collecting unit and temporarily stores the gas. The gas supplying pipe is extended to a demanded place to supply the gas stored in the middle chamber to the demanded place. The device for collecting gas in a waste landfill provides easy operation by including a structure for easily measuring moving pressure of the gas of the landfill with only manometa, reduces a burden by not using expensive specialized equipment, and allows an unskilled person to accurately confirm a gas flow rate and a gas generating amount.

Description

Gas collecting device in waste landfill

The present invention relates to a gas collecting device for recycling various waste gases generated in a landfill, more specifically, in a landfill that can accurately determine the amount of gas generated and flow rate information by measuring the flow rate of the collected gas in a simple manner. It relates to a generated gas collecting device.

Landfill gas generated from various wastes embedded in a large landfill includes methane gas, carbon dioxide, hydrogen sulfide, and the like. Such landfill gas must be disposed of in an appropriate manner because, when released to the atmosphere, not only causes a greenhouse effect but also contaminated pollutants cause air pollution.

Among various landfill gases, for example, methane gas can be recovered and recycled as an energy source if properly disposed of. Accordingly, research is being conducted to produce electricity using methane gas generated from landfills, or to directly purify and increase methane gas to natural gas level. Recycling landfill gas has the beneficial effect of reducing air pollution and utilizing waste resources.

On the other hand, in order to recycle landfill gas, first, a technique for collecting landfill gas is required. This is because once landfill gas is collected, it can be recycled.

The landfill gas collection is a process of collecting gas using a naturally generated pressure of the gas or using a vacuum suction device, and checks and analyzes the pressure and flow rate of the gas in real time.

However, conventional gas collection equipment installed in landfills has a limited scope for analyzing gas, and it is very difficult to measure the flow rate of gas through analysis of pressure, and in particular, specific analysis equipment is included. Has the disadvantage that it should be.

Domestic Patent Publication No. 10-0388938 (Measuring Method of Landfill Gas) Domestic Patent Publication No. 10-0667368 (Gas Recycling Structure of Small Garbage Landfill) Domestic Patent Publication No. 10-0810721 (Reclaimed Landfill Gas)

It is an object of the present invention to provide a gas collecting device in a landfill, which can be used conveniently and without burden because it is possible to accurately check the flow rate of gas and the amount of gas generation even if a non-skilled person does not need specific analysis equipment.

The waste gas in the landfill of the present invention as a means for solving the problem to achieve the above object is to collect the gas generated from the landfill waste of the landfill and to supply to the required place, the collection pipe piped inside the landfill waste layer Tube; A collecting part having an intermediate chamber for passing the gas delivered through the collecting pipe into the inside, having an orifice member in the flow path of the gas, and temporarily storing the gas; A pressure measuring unit mounted to the collecting unit if necessary to measure the pressure difference between the gas before passing through the orifice member and after passing; A control unit for calculating a flow rate of gas based on the measurement contents of the pressure measuring unit; And a gas supply pipe extended to the demand destination to supply the gas stored in the intermediate chamber to the demand destination.

In addition, the collecting unit; A lower adapter connected to the collection pipe and extending upwardly and vertically exposed to the ground, fixed to the lower pipe, and having a lower inner diameter having a flange portion at an upper end thereof, and provided on the side of the lower adapter, the lower adapter A first opening port for opening the inner space of the side to the side, the first opening port to which the pressure measurement part is connected, a top adapter having a predetermined inner diameter having a flange portion at a lower end thereof, and corresponding to a lower adapter with the orifice member interposed therebetween; A second opening port provided at the side of the adapter, the inner space of the upper adapter being opened to the side, and connected to the pressure measuring unit; an upper pipe for guiding gas passing through the upper adapter to the intermediate chamber; and the upper pipe. It includes a flow control valve for adjusting the flow rate of the gas passing through.

In addition, the orifice member; It may be a disk-shaped orifice plate having a predetermined thickness and at its central portion, the flow hole of the inner diameter smaller than the inner diameter of the upper adapter and the lower adapter.

The pressure measuring unit may include a manometer connected to the first opening port and the second opening port at the same time.

Further, when the pressure measuring unit is not used, both ends of the pressure measuring part are fitted into the first opening port and the second opening port, and a flexible hose is further provided to prevent leakage of gas through the first and second opening ports.

In addition, an upper pressing ring having an inner diameter that passes through the upper adapter into the upper adapter and hangs on the flange portion is installed at a peripheral portion of the upper adapter, and a lower portion of the lower adapter passes through the lower adapter to the flange portion. A lower pressing ring having an inner diameter is provided, and the upper pressing ring and the lower pressing ring are bolted by a plurality of bolts and nuts.

In addition, the concentration sensor for detecting the concentration of the gas is provided inside the collecting unit.

In addition, the orifice plate may be provided with a handle portion extending to the side, the guide plate for guiding the relative position of the orifice plate relative to the upper adapter and the lower adapter may be fixed to the peripheral portion of the orifice plate.

In addition, an orifice casing for detachably accommodating the orifice plate is further provided between the upper adapter and the lower adapter.

In addition, the orifice casing has an accommodating space which is open up and down toward the upper adapter and the lower adapter, and has an entrance to guide the orifice plate to the accommodating space side at its side.

In addition, a support groove for accommodating and supporting the edge portion of the orifice plate entering the accommodation space is formed in the accommodation space.

The generated gas collecting device in the landfill of the present invention made as described above has a structure that can easily measure the flow pressure of landfill gas with only a manometer, so it is easy to operate and does not require expensive specialized equipment. Even non-skilled people can conveniently check the gas flow rate and gas generation amount.

1 is a view showing the overall configuration of the generated gas collecting device in the landfill according to an embodiment of the present invention.
FIG. 2 is a perspective view illustrating the structure of a collecting unit illustrated in FIG. 1.
3 is a perspective view illustrating the pipe unit shown in FIG. 2 separately.
4 is an exploded perspective view illustrating the pipe unit of FIG. 3.
5 is a cross-sectional view of the pipe unit shown in FIG. 2.
6 is a side view for explaining the principle of use of the pipe unit shown in FIG.
7 is a view showing the structure of an orifice plate of another type that can be applied to the pipe unit shown in FIG.
8 is a perspective view illustrating an orifice casing that may be applied to the pipe unit shown in FIG. 2.
9 is a cross-sectional view taken along the line AA of FIG. 8.
10A, 10B, and 10C are views for explaining replacement of orifice plates of various sizes in the orifice casing of FIG. 8.

Hereinafter, one embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Basically, the generated gas collecting device of the present invention to be described later is a gas recycling facility that collects waste gas generated from landfill waste and sends it to an external need, such as a power plant or a cooking facility. In particular, by identifying the flow rate of landfill waste gas in a simple manner, it is possible to drastically reduce operating costs, as well as to simplify maintenance and maintenance.

The generated gas collecting device of the present invention includes a collecting part having an orifice member in the flow path of the gas, while passing the gas delivered from the collecting pipe piped inside the landfill waste layer therein; A pressure measuring unit mounted to the collecting unit if necessary to measure the pressure difference between the gas before passing through the orifice member and after passing; A control unit for calculating a flow rate of gas based on the measurement contents of the pressure measuring unit; An intermediate chamber which receives the gas passing through the collecting unit and temporarily stores the gas; The gas supply pipe extended to the demand destination may be provided to supply the gas stored in the intermediate chamber to the demand destination.

1 is a view showing the overall configuration of the generated gas collecting device in the landfill according to an embodiment of the present invention.

As illustrated, the generated gas collecting device 10 according to the present embodiment includes a plurality of vertical collecting pipes 12, a transfer collecting pipe 14 that follows each vertical collecting pipe, a collecting unit 20, and a pumping unit ( 18) and a control unit 50.

The vertical collecting tube 12 is a pipe fixedly embedded in the interior of the landfill waste and has a plurality of collecting holes 12a. The collecting hole 12a is an intake hole for sucking gas around the vertical collecting tube 12. The gas is sucked into the interior of the vertical collecting pipe 12 through the collecting hole 12a and then moved upward to move to the transfer collecting pipe 14.

The vertical length of the vertical collecting tube 12 may vary as necessary, and the number of application and the distance of the vertical collecting tube 12 as well as the location of the distribution in the landfill are appropriately designed as necessary. The plurality of vertical collecting pipe 12 is disposed around a single collecting portion 20. In other words, the plurality of vertical collecting tube 12 belongs to one collecting unit 20.

The conveying collecting pipe 14 is a pipe which is coupled to the upper end of each vertical collecting pipe 12 and extends toward the collecting part 20 and is connected to the lower pipe 21 of the collecting part 20. The transfer collecting pipe 14 is configured to guide the gas collected through each vertical collecting pipe 12 to the collecting unit 20 while being piped so as to spread out around the collecting unit 20 in all directions. The conveying collecting pipe 14 is extended in the longitudinal direction and bent up and down, as shown in FIG.

In some cases, a plurality of collecting holes 14a may also be applied to the transport collecting pipe 14. The collecting hole 14a is a hole for sucking the generated gas around the transfer collecting tube 14. That is, the generated gas is taken into the transfer collecting pipe 14 through the collecting hole 14a.

The transfer collecting pipe 14 is provided with a plurality of moisture discharge portion (16). The moisture discharge unit 16 may have various configurations as to separate moisture mixed with the collected gas from the gas. For example, the T-shaped tube 16a connected to the bent portion of the transport collecting tube 14 and the T-shaped tube 16a, which extends vertically downward, are bent upwards, and the upper portion of the U-shaped discharge is extended to the ground. It may consist of a pipe 16b. As long as the moisture in the gas can be removed, the configuration of the moisture discharge unit 16 can be variously changed.

On the other hand, the collecting unit 20, the collection gas supplied through each of the transport collecting pipe 14 passes through and serves to temporarily store in the intermediate chamber (30).

The collecting unit 20 includes a measuring unit 22. The measuring unit 22 is a part for measuring the flow rate of the gas delivered through the transfer collecting pipe 14, and is also a part to which a manometer (39 in FIG. 6) to be described later is mounted. In other words, the manometer 39 is inserted into the measurement unit 22 to measure the pressure.

The control unit 50 calculates the flow rate of the gas passing through the measurement unit 22 based on the pressure information received from the manometer 39.

A vertical supply pipe 34 is connected to the intermediate chamber 30, and a horizontal supply pipe 35 is connected to a lower end of the vertical supply pipe 34. The vertical supply pipe 34 and the horizontal supply pipe 35 are pipelines for delivering the gas stored in the intermediate chamber 30 to the need. Necessity may be a power plant or a gas pretreatment facility. The pretreatment facility is a facility that produces methane gas with high calorific value by purifying the gas by component in order to fuel the collected gas.

In addition, the pumping unit 18 may be installed in the horizontal supply pipe (35). The pumping unit 18 is a vacuum pump controlled by the control unit 50. The pumping unit 18 applies negative pressure to the vertical collecting tube 12 and the transfer collecting tube 14 so that the generated gas is transferred to the vertical collecting tube 12 and the transfer unit. It is easy to intake into the collection pipe 14.

FIG. 2 is a perspective view illustrating the collecting unit 20 illustrated in FIG. 1 separately.

As shown, the collecting unit 20 is located between the plurality of transport collecting pipe 14 and the vertical supply pipe 34, and after measuring the flow rate of the gas supplied through the transport collecting pipe 14, Temporarily accommodated in the chamber 30 serves to send down to the vertical supply pipe (34).

The collecting section 20 has a plurality of pipe units 20a whose lower ends are connected to the respective transport collecting pipes 14 and extend vertically and are exposed to the ground. In Figure 2, all 12 pipe units were applied. The pipe unit 20a passes the gas upward toward the intermediate chamber 30 and detects the flow rate and the concentration of the gas. A manometer (39 in FIG. 6) and the controller 50 are used together to measure the flow rate of the gas.

The detailed structure of the pipe unit 20a will be described with reference to FIGS. 3 to 5.

The intermediate chamber 30 is a sealed tank having an approximately H-shaped structure and is connected to the upper end of each pipe unit 20a. The gas supplied through the pipe unit 20a is temporarily stored in the intermediate chamber 30.

In addition, the vertical supply pipe 34 is connected to the center of the intermediate chamber 30, the horizontal supply pipe 35 is connected to the lower end of the vertical supply pipe 34. The vertical supply pipe 34 and the horizontal supply pipe 35 are pipelines for guiding the gas stored in the intermediate chamber 30 to the demand destination. In addition, the supply valve 32 is installed in the vertical supply pipe (34). The supply valve 32 is a valve for adjusting the supply amount of gas supplied to the demand destination, and can be remotely controlled by the controller 50 and can be manually operated by an operator.

FIG. 3 is a perspective view illustrating a pipe unit part shown in FIG. 2 separately, and FIG. 4 is a perspective view illustrating an exploded view of the pipe unit. 5 is a cross-sectional view of the pipe unit.

As shown in the drawing, the pipe unit 20a includes a lower pipe 21, a lower adapter 22b, a lower pressure ring 22g, an orifice plate 22k, an upper adapter 22p, an upper pressure ring 22u, The hose 22y, the upper pipe 24, and the flow regulating valve 25 are provided.

First, the lower pipe 21 is a pipe connected to an end of each transport collecting pipe 14 and extended vertically, and receives the gas delivered through the transport collecting pipe 14 to guide upward. The upper end of the lower pipe 21 is exposed to the ground.

The lower adapter 22b is a member fixed to the upper end of the lower pipe 21 and provides a passageway 22e having a constant inner diameter and has a flange portion 22d at its upper end. The upper surface of the flange portion 22d is a flat horizontal surface and is in close contact with the bottom surface of the orifice plate 22k.

In addition, the port fixing hole 22c is formed in the side part of the lower adapter 22b, and the 1st opening port 22f is fitted in the port fixing hole 22c. The first open port 22f is screwed to the port fixing hole 22c as shown in FIG. Reference numeral 22z denotes a sealing.

The first opening port 22f is a member which is fixed to the side of the lower adapter 22b and opens the inner space of the lower adapter 22b, that is, the through passage 22e to the side, and the hose 22y or the like. One side hose of the manometer 39 is fitted.

The lower pressing ring 22g is a ring-shaped member having a constant diameter and thickness, and is a member for passing the lower adapter 22b to the center thereof and supporting the flange portion 22d upward. A plurality of bolt holes 22h are formed in the lower pressing ring 22g. It goes without saying that the inner diameter of the lower pressing ring 22g is smaller than the outer diameter of the flange portion 22d.

The orifice plate 22k is an orifice member which takes the form of a disk and allows gas to pass in the thickness direction thereof. Orifice members of various shapes can be applied, and in this embodiment, an orifice plate 22k of the type which takes the form of a disk of constant thickness, has a flow hole 22n in the center, and a handle is provided on the side.

When the handle 22m is provided in the orifice plate 22k, it means that the orifice plate 22k can be taken out or replaced as needed. In other words, it is provided with orifice plates of various sizes having flow holes of different inner diameters, and can be selectively replaced and operated as necessary. The bottom face of the orifice plate 22k is in close contact with the flange portion 22d of the lower adapter 22b, and the upper face is in close contact with the flange portion 22r of the upper adapter 22p.

The upper adapter 22p is a member having a through hole 22s having a predetermined inner diameter and having a flange portion 22r at a lower end thereof. The upper adapter 22p is positioned vertically above the lower adapter 22b. The bottom face of the flange portion 22r is flattened to be in close contact with the top face of the orifice plate 22k.

In addition, a port fixing hole 22q is formed in the side portion of the upper adapter 22p, and the second open port 22t is fitted in the port fixing hole 22q. The second open port 22t engages with the port fixing hole 22q and opens the through passage 22s laterally. A hose 22y or a nanometer is connected to the second open port 22t. The size and shape of the upper adapter 22p may be the same as the lower adapter 22b.

The upper pressing ring 22u is a ring-shaped member having a constant diameter, and serves to support the flange portion by hanging the flange portion 22r while passing the upper adapter 22p to the center portion thereof. A plurality of bolt holes 22v are also formed in the upper pressing ring 22u.

The upper pressurizing ring 22u and the lower pressurizing ring 22g maintain a coupled state through a plurality of fixing bolts 22w and nuts 22x. The fixing bolt 22w is screwed with the nut 22x after passing downward through the bolt holes 22v and 22h, thereby maintaining the engaged state shown in FIG.

Referring to FIG. 5, an orifice plate 22k is interposed between the lower adapter 22b and the upper adapter 22p, and the lower pressing ring 22g and the upper pressing ring 22u are flanged portions 22d and 22r. It can be seen that a plurality of fixing bolts 22w and nuts 22x are engaged in a state of being caught. Adhesion to the orifice plate 22k can be adjusted by adjusting the coupling degree of the fixing bolt 22w to the nut 22x.

In addition, by loosely adjusting the fixing bolt 22w from the nut 22x, the orifice plate 22k can be taken out. For example, you can replace it with an orifice plate of a different size.

The upper pipe 24 is composed of a reducer 24a and an extension pipe 24b. The red cross yarn 24a has a smaller cross-sectional area at its upper end than its lower end. Therefore, the gas flowing upward through the through passage 22s is accelerated while passing through the reducer 24a and enters the extension pipe 24b.

An upper end portion of the extension pipe 24b is provided with a flow control valve 25. The flow regulating valve 25 is a ball valve having an operating lever 25a. As the flow rate control valve 25 is opened, the gas passing through the pipe unit 20a may flow into the intermediate chamber 30. The flow regulating valve 25 may be operated by the controller 50, and may be manually operated by an operator in some cases.

The hose 22y is a rubber or synthetic resin hose having flexible properties, one end of which is fitted into the first opening port 22f in a bent state, and the other end of the hose 22y is coupled to the second opening port 22t. By fitting both ends of the hose 22y to the first and second open ports 22f and 22t, there is no gas leakage from the pipe unit 20a.

The hose 22y is separated from the first and second open ports 22f and 22t for the pressure measurement in the pipe unit 20a, and the manometer 39 is exposed to the exposed first and second open ports 22f and 22t. First and second tubes 39a and 39b are fitted. The hose 22y is always fitted to the first and second open ports 22f and 22t when no pressure measurement is required.

Reference numeral 37 is a concentration sensor. The concentration sensor 37 detects the concentration of the gas passing through the pipe unit 20a and transmits the detected content to the controller 50.

FIG. 6 is a view illustrating a state in which a manometer 39 is mounted on the pipe unit 20a illustrated in FIG. 2. The reason why the manometer 39 is attached is to measure the pressure difference between the upstream region and the downstream region of the orifice plate 22k. The reason for measuring the pressure difference is to find the flow rate.

Conventionally, expensive analysis equipment for measuring gas flow rate through pressure analysis has been employed, but the present embodiment applies the portable manometer 39 and calculates the flow rate based on Bernoulli's theorem. In fact, it is not necessary to accurately determine the flow rate of gas from landfills using expensive analysis equipment (used in laboratories). This is especially true when considering operating economics or harsh use environments.

The manometer 39 generally includes a display unit 39c in which water is enclosed therein, and flexible first and second tubes 39a and 39b connected to both ends of the display unit 39. When the first and second tubes 39a and 39b are connected to the first opening port 22f and the second opening port 22t, respectively, the water enclosed in the display portion 39c moves and moves upstream of the orifice plate 22k. The difference in downstream pressure is indicated.

The content measured by the manometer 39 is transmitted to the control unit 50, and the control unit 50 passes the measurement unit 22 based on Bernoulli's principle based on the pressure information received from the manometer 39. Calculate the flow rate of the gas.

7 is a view showing the structure of an orifice plate 41 of another type that can be applied to the pipe unit 20a shown in FIG.

Hereinafter, the same reference numerals as the above reference numerals denote the same members having the same function.

Referring to FIG. 7, it can be seen that the guide plate 22j is fixed to the edge portion of the orifice plate 22k. The guide plate 22j is a part fixed by welding to the outer circumferential surface of the orifice plate 22k. When the orifice plate 22k is sandwiched between the lower adapter 22b and the upper adapter 22p, the guide plate 22j is positioned. It serves as a guide. For example, when the guide plate 22j is pushed in between the flange portions 22d and 22r, the guide plate 22j is in close contact with the outer circumferential surface of the flange portion so that the flow hole 22n is located at the central axis of the upper and lower adapters. By applying the guide plate 22j in this way, the replacement of the orifice plate 22k is very quick and accurate.

FIG. 8 is a perspective view illustrating an orifice casing 43 that may be applied to the pipe unit 20a shown in FIG. 2, and FIG. 9 is a cross-sectional view taken along the line A-A of FIG. 8. 10A, 10B, and 10C are plan views illustrating how orifice plates of various sizes are fitted in the orifice casing 43 of FIG. 8.

In some cases, an orifice casing 43 may be mounted between the lower adapter 22b and the upper adapter 22p. The orifice casing 43 is a case accommodating the orifice plate 22k therein. By applying the orifice casing 43, the process of loosening and refastening the fixing bolt 22w and the nut 22x at the time of replacing the orifice plate 22k becomes unnecessary.

The orifice casing 43 has an accommodating space 43d, which is opened up and down toward the upper adapter 22p and the lower adapter 22b, and has a horizontal side that guides the orifice plate 22k toward the accommodating space 43d on its side. To provide an entrance and exit 43c. The inner diameter D of the inner circumferential surface 43e of the accommodation space 43d is equal to the inner diameter of the upper adapter 22p and the lower adapter 22b. In addition, a support groove 43b for accommodating and supporting the edge portion of the orifice plate that has entered the accommodation space is formed on the inward surface of the accommodation space 43d.

The upper and lower surfaces of the orifice casing 43 are the contact surface 43a. The contact surface 43a is a part which comes into close contact with the flange portions 22r and 22d of the upper adapter 22p and the lower adapter 22b. If necessary, an additional seal member (not shown) may be added to the contact surface 43a.

The orifice plate 22k enters the receiving space 43d through the doorway 43c and is fitted into the support groove 43b to be fixed. Of course, the orifice plate 22k fitted into the support groove 43b may be drawn out of the accommodation space 43d. Since the attachment and detachment of the orifice plate 22k to the orifice casing 43 is thus simple, as shown in Figs. 8 and 10, an orifice plate 22k having flow holes 22n having different inner diameters is required as necessary. Can be replaced from time to time.

As mentioned above, although this invention was demonstrated in detail through the specific Example, this invention is not limited to the said Example, A various deformation | transformation is possible for a person with ordinary knowledge within the scope of the technical idea of this invention.

10: collecting device 12: vertical collecting pipe 12a: collecting hole
14: Transfer collection pipe 14a: Collector 16: Moisture discharge unit
16a: T tube 16b: discharge pipe 18: pumping part
20: collecting part 20a: pipe unit 21: lower pipe
22: measuring part 22b: lower adapter 22c: port fixing hole
22d: Flange 22e: Passage path 22f: First opening port
22 g: Lower pressure ring 22h: Bolt hole 22j: Guide plate
22k: Orifice plate 22m: Handle 22n: Flow hole
22p: upper adapter 22q: port fixing hole 22r: flange
22s: Passage path 22t: 2nd opening port 22u: Upper pressure ring
22v: Bolt hole 22w: Fixed bolt 22x: Nut
22y: hose 22z: sealing 24: upper pipe
24a: Redusa 24b: Extension pipe 25: Flow control valve
25a: operating lever 30: intermediate chamber 32: supply valve
34: vertical feed pipe 35: horizontal feed pipe 37: concentration sensor
39: manometer 39a: first tube 39b: second tube
39c: display part 43: orifice casing 43a: contact surface
43b: support groove 43c: entrance 43d: accommodation space
43e: Inner circumference 50: Control part

Claims (12)

By collecting the gas generated from the landfill garbage of the landfill and supplying it to the necessary place,
A collecting pipe piped inside the landfill waste layer;
A collecting part having an intermediate chamber for passing the gas delivered through the collecting pipe into the inside, having an orifice member in the flow path of the gas, and temporarily storing the gas;
A pressure measuring unit mounted to the collecting unit if necessary to measure the pressure difference between the gas before passing through the orifice member and after passing;
A control unit for calculating a flow rate of gas based on the measurement contents of the pressure measuring unit;
A gas supply pipe extended to the demand destination to supply the gas stored in the intermediate chamber to the demand destination,
The collecting unit;
A lower pipe connected to the collecting pipe and extending vertically and exposed to the ground;
A lower adapter having a predetermined inner diameter fixed to the lower pipe and having a flange portion at an upper end thereof;
A first opening port provided at the side of the lower adapter, opening the inner space of the lower adapter to the side, and connected to the pressure measuring unit;
An upper adapter having a predetermined inner diameter disposed corresponding to the lower adapter with the orifice member interposed therebetween, and having a flange portion at a lower end thereof;
A second opening port provided at the side of the upper adapter, opening the inner space of the upper adapter to the side, and connected to the pressure measuring unit;
An upper pipe for guiding the gas passing through the upper adapter into the intermediate chamber;
It includes a flow rate control valve for adjusting the flow rate of the gas passing through the upper pipe,
When the pressure measuring unit is not used, both end portions thereof are inserted into the first opening port and the second opening port, and further include a flexible hose that prevents the leakage of the gas through the first and second opening ports. Collection device. delete The method of claim 1,
The orifice member;
And a disk-shaped orifice plate having a predetermined thickness and having a flow hole having an inner diameter smaller than an inner diameter of the upper adapter and the lower adapter at a central portion thereof. The method of claim 1,
The pressure measuring unit, the generated gas collection device in the landfill includes a manometer connected to the first open port and the second open port at the same time. delete The method of claim 1,
At the peripheral portion of the upper adapter, an upper pressing ring having an inner diameter that passes through the upper adapter therein and is caught by the flange portion is installed.
At the periphery of the lower adapter, a lower pressing ring having an inner diameter that passes through the lower adapter therein and is caught by the flange portion is provided.
The upper pressurizing ring and the lower pressurizing ring is a gas collecting device in the landfill is coupled bolted by a plurality of bolts and nuts. The method of claim 1,
And a gas collecting device in a landfill having a concentration sensor detecting a gas concentration inside the collecting part. The method of claim 3,
The generated gas collecting device in the landfill having the handle portion extending to the side of the orifice plate. The method of claim 3,
And a guide plate for guiding a relative position of the orifice plate with respect to the upper adapter and the lower adapter at the periphery of the orifice plate. The method of claim 3,
An apparatus for collecting generated gas in a landfill, further comprising an orifice casing for detachably accommodating the orifice plate between the upper adapter and the lower adapter. The method of claim 10,
The orifice casing,
And a receiving space vertically open toward the upper adapter and the lower adapter, the side of which has an entrance to guide the orifice plate to the receiving space. The method of claim 11,
Inside the receiving space, the generated gas collecting device in the landfill is formed with a support groove for receiving and supporting the edge of the orifice plate entered into the receiving space.

Images