CN204502680U - Centrifugal fuel gas purification tar collector - Google Patents

Abstract

The utility model discloses a combustible gas purification tar collector, which comprises a collection tank, a collection pipe, a combustible gas inlet, a combustible gas outlet, a filter element and an oil discharge pipe; the oil discharge pipe is installed at the bottom of the collection tank, and the gas The inlet is arranged above the side wall of the collection tank, the collection tube is arranged in the middle of the collection tank, and extends from the top of the tank to the bottom of the tank, the filter element is installed inside the collection tube, and also includes a spiral guide plate; the spiral guide plate It is arranged on the outer wall of the collection tube, and guides the combustible gas entering from the combustible gas inlet to rotate in the collection tank to form a cyclone; the tar in the combustible gas is separated; the combustible gas is filtered from the inlet at the lower end of the collection tube through the filter element, and passes The combustible gas outlet is output; the tar is collected at the bottom of the collection tank and output from the oil discharge pipe. The utility model realizes the integration of combustible gas purification tar collection, through the purification and collection of two-stage collection tanks, the purification tar collection rate exceeds 99%.

Description

Centrifugal combustible gas purification tar collector

technical field

The utility model relates to a centrifugal combustible gas purification tar collector, which belongs to the field of utilization of renewable resources.

Background technique

 The combustion method uses biomass to prepare gaseous fuel, and converts biological materials such as straw into gaseous fuel through combustion in specific equipment; this method has a much higher gas production efficiency than biogas produced by fermentation. However, due to the complex combustion state, tar is produced during the preparation of gaseous fuels. Incorporated tars can affect gas combustion applications, especially as generator fuel. Tar not only affects power generation efficiency, but may also cause damage to power generation equipment.

Utility model content

The purpose of this utility model is to provide a combustible gas purification tar collector for purifying and collecting tar, and the specific scheme is as follows.

A combustible gas purification tar collector, comprising a collection tank, a collection pipe, a combustible gas inlet, a combustible gas outlet, a filter element and an oil discharge pipe; the oil discharge pipe is installed at the bottom of the collection tank, and the gas inlet is arranged at the collection tank The upper part of the side wall, the collection tube is arranged in the middle of the collection tank, extending from the top of the tank to the bottom of the tank, the filter element is installed inside the collection tube, and also includes a spiral guide plate; the spiral guide plate is arranged on the collection tank On the outer wall of the tube, the combustible gas entering from the combustible gas inlet is guided to rotate in the collection tank to form a cyclone; the tar in the combustible gas is separated out; the combustible gas is filtered from the inlet at the lower end of the collection tube through the filter element, and is output through the combustible gas outlet ; The tar is collected at the bottom of the collection tank and exported from the oil discharge pipe.

Further, the pipe wall of the collection pipe is provided with several oil discharge holes penetrating the pipe wall.

Further, there are multiple collection tanks, and the multiple collection tanks are connected through a transfer pipe.

Further, the diameter of the transfer pipe is smaller than that of the collection pipe at the lower stage, and the diameter of the connection part is gradually enlarged to form a Raphael pipe.

Further, an oil discharge valve is connected under the oil discharge pipe.

Further, the oil discharge valve is a one-way oil discharge valve.

Further, two switchable oil discharge valves are connected in series under the oil discharge pipe.

Further, the number of the oil discharge holes is 20 to 60; the diameter of the oil discharge holes is 10 to 30 mm.

Further, the number of the oil discharge holes is 36; the diameter of the oil discharge holes is 20 mm.

The combustible gas purification tar collector of the utility model generates a cyclone through the spiral guide plate, reduces the resistance inside the tank, increases the probability of contact between the gas and the tank wall, and improves the purification rate of the tar; the tar in the gas is filtered through the filter element, Then, the tar in the filter element is discharged through the oil discharge hole on the guide pipe, which reduces the resistance of the filter element and prolongs the working time of the filter element at the same time. The collected tar can be recycled as chemical raw material.

Description of drawings

Fig. 1 is the structural representation of the utility model;

In the figure: 1. Combustible gas inlet; 2. First collection tank; 3. Second collection tank; 4. Combustible gas outlet; 5. Oil discharge outlet; 6. Oil storage tank; 7. Oil discharge valve; 8. Transfer pipe 9, the first collection pipe; 10, the second collection pipe; 11, the first spiral guide plate; 12, the second spiral guide plate; 13, the third oil discharge valve; 14, the oil discharge hole.

Detailed ways

The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

For ease of description, spatially relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature relative to another element or feature shown in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative specifications used herein interpreted accordingly.

Example 1

As shown in FIG. 1 , the combustible gas purification tar collector (collector for short) in the embodiment includes a first collection tank 2 and a second collection tank 3 . The combustible gas inlet 1 is located on the upper part of the side wall of the first collecting tank 2; the combustible gas outlet 4 is located on the upper part of the side wall of the second collecting tank 3. The first collection pipe 9 and the second collection pipe 10 are respectively arranged in the center of the top wall of the first collection tank 2 and the second collection tank 3, and the collection pipe extends downwards close to the bottom of the tank; the bottom of the tank is provided with an oil discharge outlet 5, An oil discharge pipe is connected below the oil discharge outlet 5, and an oil discharge valve 7 is installed on the oil discharge pipe; a certain space is reserved between the bottom of the tank and the collection tank for storing tar, and the tar is accumulated to a certain extent and discharged through the oil discharge valve 7. During specific implementation, only the first collection tank 2 can be used, and the outlet of the first collection pipe 9 can be used as the combustible gas outlet 4; multiple collection tanks can also be connected in series or in parallel to achieve better filtering and collection effects.

A first helical guide plate 11 and a second helical guide plate 12 are installed on the first collection pipe 9 and the second collection pipe 10 respectively. The first collection pipe 9 and the second collection pipe 10 are provided with filter elements (not shown in the figure) for filtering tar.

When in use, the collector is connected to the combustible gas production system. After the combustible gas is sent into the collector from the combustible gas inlet 1 through the pipeline by the supporting equipment Roots blower (not shown in the figure), it is guided by the first spiral guide plate 11 to form a cyclone in the first collection tank 2 . When the combustible gas contacts the inner wall of the first collection tank 2 and the first helical guide plate 11 , tar will hang on the inner wall and the first helical guide plate 11 . The cyclone reduces the flow resistance of the combustible gas in the first collecting tank 2, and increases the flow rate of the combustible gas; at the same time, the combustible gas is fully and evenly contacted with the first collecting tank 2, and the centrifugal force generated by the cyclone is conducive to the precipitation of tar, improving The tar collection rate of combustible gas per unit area of pipe wall is determined.

The flow of combustible gas will generate a driving force to speed up the downward flow of the sticking tar; further increase the collection rate of tar.

The combustible gas guided to the lower part of the first collection tank 2 by the first spiral guide plate 11 enters the inlet at the lower end of the first collection pipe 9 and passes through the filter element arranged inside the first collection pipe 9 to filter out part of the remaining tar in the gas . This part of tar flows to the bottom of the first collection tank 2 along the filter element and the inner wall of the first collection pipe 9 under the effect of gravity.

The combustible gas enters the second collection tank 10 from the first collection pipe 9 through the transfer pipe 8 . Then enter the bottom of the second collection tank 3 from the second collection pipe 10 lower end through the filtration of the filter element in the second collection pipe 10; to downstream equipment.

The collector in this embodiment realizes the collection of combustible gas purification and tar as a whole. Through the purification and collection of two-stage collection tanks, the collection rate of purified tar exceeds 99%.

Example 2

Embodiment 2 is basically the same as Embodiment 1, except that 36 oil discharge holes 14 with a diameter of 20 mm are evenly distributed on the pipe wall of the first collecting pipe 9 . During specific implementation, the size of the oil discharge hole 14 can be 10 to 30 mm; the number can be 20 to 60; it can also be selected according to the specific conditions of production, and is not limited to the parameters of this embodiment.

As mentioned above, the combustible gas forms a cyclone in the first collection tank 2, which makes the pressure in the center of the first collection tank 2 lower than the pressure outside the center; the outer wall of the first collection pipe 9 is at a lower pressure position. Part of the combustible gas entering the first collection pipe 9 flows out through the oil discharge hole 14 on the pipe wall, and is mixed into the cyclone. After secondary collection, the purification rate of tar is improved.

The combustible gas flowing out from the oil discharge hole 14 pushes the tar in the filter element to flow out from the oil discharge hole 14 , and flows to the bottom of the first collection tank 2 along the outer wall of the first collection pipe 9 . Due to the discharge of part of the tar, the resistance of the combustible gas in the filter element is reduced, and the load of the filter element is also reduced, which prolongs the service time of the filter element.

During specific implementation, the second collection pipe 10 may also be provided with an oil discharge hole 14 , or both collection pipes may be provided with an oil discharge hole 14 .

Example 3

This embodiment is basically the same as Embodiment 2 or 3, the difference is that the diameter of the transfer pipe 8 is smaller than the diameter of the second collection pipe 10; at the connection with the second collection pipe 10, the caliber gradually becomes larger, and the diameter of the second collection pipe 10 is larger. Connected to form a Raphael tube; no filter element is set at the connection. This structure will cause the lasing of combustible gas in the transfer pipe 8, increase the flow rate of combustible gas, and improve the purification rate of tar in the second collection tank 3.

During specific implementation, for the convenience of processing and maintenance, the diameters of the first collecting tube 9 and the second collecting tube 10 are designed to be consistent, and the adapters are also designed to be consistent.

Example 4

This embodiment is basically the same as the collectors in Embodiments 2 to 4; the difference is that an oil storage tank 6 is arranged below the collection tank. The oil discharge outlets 5 of the first collection tank 2 and the second collection tank 3 are connected with the oil storage tank 6 through pipelines and valves. The tar in each collection tank is discharged into the oil storage tank 6 respectively, and after concentrated recovery, it is output through the third oil discharge valve 13 . The tar is discharged step by step, and only one of the oil discharge valve 7 and the third oil discharge valve 13 is opened at the same time during the discharge process, which can avoid leakage of combustible gas and accidents caused by leakage when discharging tar. Therefore, the production can not be interrupted during the export of tar.

The above examples are only used to illustrate the utility model, in addition, there are many different implementation modes, and these implementation modes are all that those skilled in the art can think of after comprehending the idea of the utility model, so, it is not mentioned here List them one by one.

Claims (9)

1. A combustible gas purification tar collector comprises a collection tank, a collection pipe, a combustible gas inlet, a combustible gas outlet, a filter element and an oil discharge pipe; the oil discharge pipe is installed on the bottom of the collection tank, and the gas inlet is arranged on The upper part of the side wall of the collection tank, the collection tube is arranged in the middle of the collection tank, extending from the top of the tank to the bottom of the tank, the filter element is installed inside the collection tube, and it is characterized in that it also includes a spiral guide plate; the spiral guide The plate is arranged on the outer wall of the collection tube to guide the combustible gas entering from the combustible gas inlet to rotate in the collection tank to form a cyclone; the tar in the combustible gas is separated out; the combustible gas is filtered from the inlet at the lower end of the collection tube through the filter element and passed The combustible gas is output from the outlet; the tar is collected at the bottom of the collection tank and output from the oil discharge pipe. 2 . The combustible gas purification tar collector according to claim 1 , wherein a plurality of oil discharge holes penetrating through the pipe wall are provided on the pipe wall of the collection pipe. 3 . 3 . The combustible gas purification tar collector according to claim 1 , wherein there are multiple collection tanks, and the multiple collection tanks are connected by a transfer pipe. 4 . 4. The tar collector for combustible gas purification according to claim 3, wherein the diameter of the transfer pipe is smaller than that of the collection pipe at the lower stage, and the diameter of the connection part is gradually enlarged to form a Raphael pipe. 5. The combustible gas purification tar collector according to claim 1, wherein an oil discharge valve is connected under the oil discharge pipe. 6. The combustible gas purification tar collector according to claim 5, wherein the oil discharge valve is a one-way oil discharge valve. 7. The combustible gas purification tar collector according to claim 5, wherein two switchable oil discharge valves are connected in series under the oil discharge pipe. 8 . The combustible gas purification tar collector according to claim 2 , wherein the number of the oil discharge holes is 20 to 60; the diameter of the oil discharge holes is 10 to 30 mm. 9. The combustible gas purification tar collector according to claim 8, wherein the number of the oil discharge holes is 36; the diameter of the oil discharge holes is 20 mm.