CN117919845A - Pipeline type gas purifying equipment and working method thereof - Google Patents

Abstract

The application discloses pipeline type gas purification equipment and a working method thereof, wherein the pipeline type gas purification equipment comprises a pipeline body, a cyclone excitation assembly and a impurity removal pipeline group, the pipeline body is provided with an air inlet and an air outlet, the cyclone excitation assembly comprises a plurality of cyclone blades and a mounting shaft, the impurity removal pipeline group comprises a first impurity removal pipeline and a second impurity removal pipeline, the first impurity removal pipeline and the pipeline body form a first collecting space together, the first impurity removal pipeline forms a plurality of separation structures, and the first impurity removal pipeline, the second impurity removal pipeline and the pipeline body form a first treatment space together. The application can remove impurities from the gas for multiple times, so as to greatly reduce the content of liquid and particulate matters in the gas, has better purification effect, and effectively avoids the situation that partial liquid and particulate matters in the gas are discharged along with the gas flow when the gas flow is overlarge and/or the liquid content and solid content of the gas flow are overlarge.

Description

Pipeline type gas purifying equipment and working method thereof

Technical Field

The invention relates to the technical field of gas purification, in particular to pipeline type gas purification equipment and a working method thereof.

Background

In the industrial production process, a large amount of gas doped with particulate matters is usually discharged, and part of the gas is doped with liquid according to different production processes and production environments. To ensure that the gas discharge is satisfactory, it is often necessary to clean the gas using equipment such as cyclones. When the cyclone separator is used, gas is guided by the fan to enter the conical cylinder through the gas inlet pipe in the tangential direction of the conical cylinder, at the moment, the gas flow is changed from linear motion into circular motion, most of the gas flows downwards in a spiral shape along the inner wall of the conical cylinder to form an external cyclone, in the process, liquid and particulate matters in the gas are thrown towards the inner wall of the conical cylinder and slide downwards along the inner wall under the action of gravity to be collected in a concentrated manner, and simultaneously, the gas which is lowered in a rotating manner is gathered towards the center of the conical cylinder continuously to form an internal rotation flow which is upwards in a rotating manner, so that the gas is discharged from an external discharge pipe which is arranged at the top of the conical cylinder and extends into the conical cylinder. In addition, a small portion of the gas entering the interior of the conical cylinder from the gas inlet pipe flows downward along the outside of the exhaust pipe to join the rotating upward internal flow and be brought into the exhaust pipe and discharged centrally when flowing to the lower end of the exhaust pipe. It is apparent that the cyclone cannot perform the purification treatment of all the gas introduced from the gas inlet pipe due to its own design, resulting in an unsatisfactory purification effect of the gas.

In addition, generally, only a single cyclone can be used for removing impurities from gas, and the purifying effect of the cyclone on the gas depends on the gas flow rate and the liquid content and solid content in the gas flow. In the actual use process, the flow of the gas has fluctuation, the liquid content and the solid content in the gas flow are large and small, and once the flow of the gas is too large and/or the liquid content and the solid content in the gas flow are too large, partial liquid drops and particles in the gas are discharged integrally when the liquid drops and the particles are not separated, so that the cyclone separator cannot effectively purify the gas.

In addition, in order to improve the purifying effect, the cyclone separator is generally designed to have a relatively large size, and in actual assembly, it is necessary to consider the arrangement of the pipelines and the size of the installation space, and the installation is not convenient enough.

Disclosure of Invention

The invention has the advantages that the pipeline type gas purifying equipment and the working method thereof are provided, the impurity of the gas can be removed for a plurality of times, so that the content of liquid and particulate matters in the gas is greatly reduced, compared with the existing cyclone separator, the purifying effect is better, and the situation that partial liquid and particulate matters in the gas are discharged along with the gas when the gas flow is overlarge and/or the liquid content and solid content of the gas flow are overlarge is effectively avoided.

One advantage of the present invention is to provide a ducted gas cleaning apparatus and method of operation that can be integrally assembled on a pipeline with a smaller overall volume and lower equipment cost than current cyclones.

To achieve at least one of the above advantages, the present invention provides a pipe-type gas cleaning apparatus, which:

the pipeline body is provided with an air inlet and an air outlet, the air inlet and the air outlet are oppositely arranged and respectively formed at the high end and the bottom end of the pipeline body, the air inlet is used for introducing gas flowing at a preset flow rate, and the air outlet is used for discharging the gas after impurity removal operation;

the cyclone excitation assembly comprises a plurality of cyclone blades and a mounting shaft, the cyclone blades are arranged on the radial direction of the mounting shaft and are distributed at intervals, and the cyclone blades are of an inclined design at a preset inclination angle;

an impurity removal conduit set, the impurity removal conduit set comprising:

A first impurity removing duct mounted in the duct body and located at an end of the duct body near the air inlet, the first impurity removing duct having a first air flow passage with its two ends respectively facing the air inlet and the air outlet and communicating with the air inlet, an end of the swirl vane away from the mounting shaft being connected to an inner wall of the first impurity removing duct, the gas introduced into the first air flow passage from the air inlet impinging on the cyclone exciting assembly to form a cyclone and being directed in the form of a cyclone to the air outlet, an outer wall of the first impurity removing duct away from the end of the air inlet and an inner wall of the duct body together forming a first collecting space, a peripheral wall of the first impurity removing duct forming a plurality of separation structures communicating with the first air flow passage, the plurality of separation structures being arranged at intervals, the first air flow passage communicating with the first collecting space through the separation structures, the separation structures being located in the direction of the cyclone exciting assembly and being directed in the direction of the cyclone exciting assembly to at least one of the air outlet and being directed in the direction of the centrifugal force of the liquid particles flowing out of the separation structure;

The second impurity removing pipeline is arranged on the pipeline body, the second impurity removing pipeline is positioned on one side, away from the air inlet, of the first impurity removing pipeline and is separated from the first impurity removing pipeline by a preset distance, a first processing space communicated with the first collecting space is formed by the first impurity removing pipeline, which is close to one end face of the second impurity removing pipeline, and the inner wall of the pipeline body, the second impurity removing pipeline is provided with a second airflow channel, one end opening of the second airflow channel corresponds to the air outlet, the first airflow channel and one end opening of the second airflow channel are respectively far away from the air inlet and are communicated with the first processing space, cyclone-type circulating gas discharged by the first airflow channel can be centrifugally removed in the first processing space and finally enter the second airflow channel to be discharged from the air outlet, cyclone-type circulating gas flowing in the first processing space can be centrifugally thrown down to the inner wall of the pipeline body under the action of gravity force of gravity and can be enabled to flow towards the inner wall of the cyclone-type collecting space.

According to an embodiment of the invention, the separating structure is implemented as a slot exhibiting an oblique design and having the same oblique direction as the swirl vanes.

According to an embodiment of the present invention, a transition portion is formed at an end portion of the first impurity removing duct near the second impurity removing duct, and a cross-sectional dimension of the transition portion is gradually increased with reference to a direction in which the gas flows through the first gas flow channel and is directed to the first processing space, and the transition portion is used for increasing a dimension of a cyclone formed by the gas flowing through the cyclone exciting assembly and guiding the gas into the first processing space.

According to an embodiment of the present invention, the second impurity removing duct includes a impurity removing duct body and a junction portion, the second air flow passage is formed in the impurity removing duct body, the junction portion is installed in a radial direction of the impurity removing duct body, the impurity removing duct body is connected with an inner wall of the duct body through the junction portion, an outer wall of an end portion of the impurity removing duct body, which is far away from the first impurity removing duct body, forms a second collecting space together with the junction portion and the inner wall of the duct body, the impurity removing duct group further includes a third impurity removing duct, the third impurity removing duct is installed in the duct body, the third impurity removing duct is located at a side of the second impurity removing duct, which is far away from the first impurity removing duct, and is spaced a predetermined distance from the second impurity removing duct, the second impurity removing pipeline is close to one end face of the third impurity removing pipeline, the third impurity removing pipeline and the inner wall of the pipeline body together form a second treatment space communicated with the second collecting space, the third impurity removing pipeline is provided with a third air flow channel, two end ports of the third air flow channel are respectively communicated with the air outlet and the second treatment space, the port of the second air flow channel corresponding to the air outlet is communicated with the second treatment space, the gas exhausted by the second air flow channel and circulated in a cyclone mode can be centrifugally removed in the second treatment space and finally enter the third air flow channel to be exhausted from the air outlet, liquid and particle substances in the gas circulated in the cyclone mode in the second treatment space can be thrown towards the pipeline body under the action of centrifugal force to form the inner wall of the second treatment space, so that it can flow downwards along the inner wall of the pipe body under the action of gravity to be collected in the second collecting space.

According to an embodiment of the present invention, the connection portion forms a through hole penetrating up and down, the through hole is communicated with the second collecting space, the second collecting space is communicated with the first processing space through the through hole, the second collecting space is located above the first collecting space, and liquid and particulate matters in the second collecting space can pass through the through hole and flow through the first processing space under gravity to be finally led into the first collecting space.

According to an embodiment of the present invention, the pipe-type gas cleaning apparatus further includes a communicating member which is installed to the through hole and extends to the second collecting space, the communicating member has a communicating passage, the second collecting space is communicated with the first collecting space through the communicating passage, and the liquid and the particulate matters collected in the second collecting space can be introduced into the first collecting space through the communicating passage by gravity.

According to an embodiment of the invention, the communication piece extends towards the lower end of the first collecting space, and the bottom end of the communication piece can be submerged by the liquid introduced into the first collecting space through the separation structure.

According to an embodiment of the present invention, the pipe body has a liquid outlet communicating with the first collecting space, and the liquid outlet is used for discharging the liquid and the particulate matters in the first collecting space.

According to an embodiment of the invention, the liquid drain is located at a lower end of the first collecting space.

To achieve at least one of the above advantages, the present invention provides a method of operating a pipeline type gas cleaning apparatus, comprising the steps of:

the method comprises the steps that gas flowing at a preset flow rate enters a first airflow channel of a first impurity removing pipeline through an air inlet, the gas forms a cyclone by impacting a cyclone blade of a cyclone exciting assembly, the gas flowing in a cyclone mode is guided to a second impurity removing pipeline along the first airflow channel, in the process, at least part of liquid and particulate matters in the gas are pressed close to the inner wall of the first impurity removing pipeline under the action of centrifugal force and enter a first collecting space formed by the outer wall of one end part of the first impurity removing pipeline far away from the air inlet and the inner wall of a pipeline body through a separation structure formed on the peripheral wall of the first impurity removing pipeline so as to remove impurities primarily;

the gas after preliminary impurity removal is discharged from the first gas flow channel in a cyclone mode and enters a first treatment space formed by the end face, far away from the second impurity removal pipeline, of the first impurity removal pipeline, the second impurity removal pipeline and the inner wall of the pipeline body, liquid and particulate matters in the gas are pressed close to the pipeline body under the action of centrifugal force to form the inner wall of the first treatment space, flow downwards along the inner wall of the pipeline body under the action of gravity to be led into the first collection space, so that secondary impurity removal is performed, and the gas after secondary impurity removal is guided to the gas outlet through the second gas flow channel of the second impurity removal pipeline.

Drawings

Fig. 1 shows a schematic structural view of a pipeline type gas purifying apparatus according to the present invention.

Fig. 2 shows a sectional view of the structure of the pipe-type gas cleaning apparatus according to the present invention.

Fig. 3 is a perspective view showing the structure of a cyclone stimulating assembly of the pipe type gas cleaning apparatus according to the present invention.

Fig. 4 is a perspective view showing the structure of a first impurity removing duct of the duct type gas cleaning apparatus according to the present invention.

Fig. 5 is a perspective view showing the structure of a second impurity removing duct of the duct type gas cleaning apparatus according to the present invention.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present invention.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Referring to fig. 1 to 2, a pipeline type gas cleaning apparatus according to a preferred embodiment of the present invention, which is capable of separating liquid and particulate matter entrained in a gas by centrifugal force, will be described in detail below.

The pipeline type gas purifying device comprises a pipeline body 10, wherein the pipeline body 10 is provided with a gas inlet 101 and a gas outlet 102, and the gas inlet 101 and the gas outlet 102 are oppositely arranged and respectively formed at the high end and the bottom end of the pipeline body 10. The gas inlet 101 is used for introducing gas flowing at a predetermined flow rate, and the gas outlet 102 is used for discharging the gas after impurity removal operation.

Preferably, the flow rate of the gas is 8-12m/s.

The ducted gas cleaning apparatus includes a cyclone stimulating assembly 20 and a de-mixing duct assembly 30. The impurity removing pipe set 30 includes a first impurity removing pipe 31, and the first impurity removing pipe 31 is installed in the pipe body 10 and located at an end portion of the pipe body 10 near the air inlet 101. The first impurity removing duct 31 has a first air flow passage 3101, both ends of the first air flow passage 3101 face the air inlet 101 and the air outlet 102, respectively, and the first air flow passage 3101 communicates with the air inlet 101. The cyclone stimulating assembly 20 is mounted on the first air flow channel 3101, and the air introduced into the first air flow channel 3101 from the air inlet 101 is impacted on the cyclone stimulating assembly 20 to form a cyclone and is guided to the air outlet 102 in a cyclone form, in the process, the liquid and the particulate matters in the air are pressed close to the inner wall of the first impurity removing duct 31 under the action of centrifugal force and at least partially attached to the inner wall of the first impurity removing duct 31, so as to separate at least part of the liquid and the particulate matters.

Referring to fig. 2 to 3, the cyclone assembly 20 includes a plurality of cyclone blades 21 and a mounting shaft 22, the cyclone blades 21 are mounted on the radial direction of the mounting shaft 22 and the cyclone blades 21 are spaced apart, and an end portion of the cyclone blades 21 away from the mounting shaft 22 is connected to the inner wall of the first impurity removing duct 31. The swirl vanes 21 are of an inclined design at a predetermined inclination angle so that the gas flowing through the swirl vanes 21 can flow in the form of a cyclone.

Preferably, the two opposite edges of each swirl vane 21 extend toward the mounting shaft 22 at an included angle of 30 °.

Preferably, the swirl blades 21 are inclined at an angle of 27-35 ° to a plane formed by the radial extension of the mounting shaft 22.

Referring to fig. 2 and 4, the outer wall of an end portion of the first impurity removing pipe 31 away from the air inlet 101 and the inner wall of the pipe body 10 together form a first collecting space 1001, the peripheral wall of the first impurity removing pipe 31 forms a plurality of separating structures 311 communicated with the first air flow channel 3101, a plurality of separating structures 311 are arranged at intervals, and the first air flow channel 3101 is communicated with the first collecting space 1001 through the separating structures 311. The separation structure 311 is located in a flow direction of the gas flowing through the cyclone assembly 20 and being directed to the gas outlet 102, and the separation structure 311 is configured to discharge at least a portion of the liquid and the particulate matters in the gas that are subject to centrifugal force and are close to the inner wall of the first impurity removal duct 31, and guide the liquid and the particulate matters into the first collecting space 1001, so as to remove at least a portion of the liquid and the particulate matters in the gas, so as to primarily remove impurities.

Preferably, the separation structure 311 is implemented as a slot, and the slot has a length of 50mm and a width of 2mm to allow liquid and particulate matter having a particle size of 300 μm or more to be discharged.

Preferably, when the separation structure 311 is implemented as a slot, the slot is inclined in the same direction as the swirl vanes 21, so that the gas flowing in the cyclone form can be smoothly discharged from the slot while flowing in the first gas flow channel 3101 toward the gas outlet 102.

Preferably, the direction in which the lower end of the slot extends toward the upper end is 30 ° from the flow direction of the gas in the first gas flow channel 3101 toward the gas outlet 102.

Referring to fig. 2, the impurity removing duct set 30 further includes a second impurity removing duct 32, the second impurity removing duct 32 is mounted on the duct body 10, and the second impurity removing duct 32 is located at a side of the first impurity removing duct 31 away from the air inlet 101 and spaced apart from the first impurity removing duct 31 by a predetermined distance. An end surface of the first impurity removing pipe 31, which is close to the second impurity removing pipe 32, forms a first processing space 1002 communicating with the first collecting space 1001 together with the second impurity removing pipe 32 and the inner wall of the pipe body 10. The second impurity removing duct 32 has a second airflow channel 3201, a port of the second airflow channel 3201 corresponds to the air outlet 102, and a port of each of the first airflow channel 3101 and the second airflow channel 3201, which is far away from the air inlet 101 and the air outlet 102, is communicated with the first processing space 1002. The gas discharged from the first gas flow channel 3101 and circulated in the form of cyclone can be centrifugally removed in the first processing space 1002 and finally enter the second gas flow channel 3201 to be discharged from the gas outlet 102. The liquid and particulate matters in the gas flowing in the cyclone form flowing in the first processing space 1002 can be thrown toward the pipe body 10 by the centrifugal force to form the inner wall of the first processing space 1002, so that they can flow downward along the inner wall of the pipe body 10 by gravity to be collected in the first collecting space 1001, thereby realizing secondary impurity removal.

Specifically, in this process, the liquid and the particulate matters having a particle diameter of 120 μm or more are forced by centrifugal force to be close to the pipe body 10 to form the inner wall of the first treatment space 1002, and finally guided to the first collecting space 1001 along the inner wall of the pipe body 10.

In this way, based on the cooperation of the first impurity removing pipe 31 and the second impurity removing pipe 32, the gas is subjected to impurity removal twice, so as to greatly reduce the content of liquid and particulate matters in the gas, and compared with the existing cyclone separator, the cyclone separator has better purifying effect, and effectively avoids the situation that when the gas flow is overlarge and/or the liquid content and solid content of the gas flow are overlarge, part of liquid and particulate matters in the gas are discharged along with the gas flow without being separated.

It should be noted that the pipeline type gas purifying device can be integrally assembled on a pipeline through the pipeline body 10, and compared with the existing cyclone separator, the pipeline type gas purifying device has smaller overall size and lower equipment cost.

Referring to fig. 2 and 4, preferably, a transition portion 312 is formed at an end portion of the first impurity removing duct 31 near the second impurity removing duct 32, and a cross-sectional dimension of the transition portion 312 is gradually increased with reference to a direction in which the gas flows through the first gas flow channel 3101 to be directed to the first processing space 1002. The transition portion 312 serves to increase the size of the cyclone formed by the gas passing through the cyclone exciting assembly 20 and guide the gas into the first treating space 1002, so as to ensure that the liquid and particulate matters in the gas flowing in the cyclone form can be kept close to the inner wall of the pipe body 10 forming the first treating space 1002, thereby improving the removal rate of the liquid and particulate matters in the gas.

Referring to fig. 2 and 5, the second impurity removing duct 32 includes a impurity removing duct body 321 and a junction portion 322, the second air flow passage 3201 is formed in the impurity removing duct body 321, the junction portion 322 is installed in a radial direction of the impurity removing duct body 321, and the impurity removing duct body 321 is connected to an inner wall of the duct body 10 through the junction portion 322. The outer wall of the end of the impurity removing pipe 321, which is far away from the first impurity removing pipe 31, forms a second collecting space 1003 together with the connecting portion 322 and the inner wall of the pipe body 10.

Referring to fig. 2, the impurity removing pipe set 30 further includes a third impurity removing pipe 33, the third impurity removing pipe 33 is installed on the pipe body 10, and the third impurity removing pipe 33 is located at a side of the second impurity removing pipe 32 away from the first impurity removing pipe 31 and spaced apart from the second impurity removing pipe 32 by a predetermined distance. An end surface of the second impurity removing pipe 32, which is close to the third impurity removing pipe 33, forms a second processing space 1004 in communication with the second collecting space 1003 together with the third impurity removing pipe 33 and the inner wall of the pipe body 10. The third impurity removing duct 33 has a third airflow channel 3301, two ports of the third airflow channel 3301 are respectively connected to the air outlet 102 and the second processing space 1004, and a port of the second airflow channel 3201 corresponding to the air outlet 102 is connected to the second processing space 1004. The gas discharged from the second gas flow path 3201 and circulated in the form of cyclone can be centrifugally removed in the second processing space 1004 and finally enter the third gas flow path 3301 to be discharged from the gas outlet 102. The liquid and particulate matters in the gas flowing in the cyclone form flowing in the second processing space 1004 can be thrown towards the pipe body 10 to form the inner wall of the second processing space 1004 under the action of centrifugal force, so that the liquid and particulate matters can flow downwards along the inner wall of the pipe body 10 under the action of gravity to be collected in the second collecting space 1003, so as to remove the impurities again, and the impurities are removed by utilizing centrifugal force based on the fact that the gas passes through the first impurity removing pipe 31 and the second impurity removing pipe 32 in sequence, so that the content of the liquid and particulate matters in the gas is further reduced, and the gas purity is improved.

Specifically, in this process, the liquid and the particulate matters having a particle diameter of 80 μm or more are forced by centrifugal force to be close to the pipe body 10 to form the inner wall of the second processing space 1004, and finally guided to the second collecting space 1003 along the inner wall of the pipe body 10.

Preferably, the inner diameter of the air inlet 101 is D, the height of the first impurity removing duct 31 is 3.2×d-5.2×d, the height of the transition portion 312 is 0.2×d, the height of the first treatment space 1002 is 0.3×d-0.5×d, the height of the impurity removing duct 321 is 1.5×d-2*D, and the height of the second treatment space 1004 is 0.2×d-0.3×d.

Referring to fig. 5, it is noted that the connection portion 322 forms a through hole 32201 penetrating therethrough, the through hole 32201 communicates with the second collecting space 1003, and the second collecting space 1003 communicates with the first processing space 1002 through the through hole 32201. The second collecting space 1003 is located above the first collecting space 1001, and the liquid and the particulate matters in the second collecting space 1003 can pass through the through hole 32201 by gravity and flow through the first processing space 1002 to be finally introduced into the first collecting space 1001, so as to collect the liquid and the particulate matters in a concentrated manner, so as to process the liquid and the particulate matters in a concentrated manner.

Referring to fig. 2, the pipe-type gas cleaning apparatus further includes a communication member 40, and the communication member 40 is installed at the through hole 32201 and extends toward the second collecting space 1003. The communicating member 40 has a communicating passage 401, the second collecting space 1003 communicates with the first collecting space 1001 through the communicating passage 401, and the liquid and the particulate matters collected in the second collecting space 1003 can be introduced into the first collecting space 1001 through the communicating passage 401 by gravity to collect the liquid and the particulate matters.

Preferably, the communicating member 40 extends toward the lower end of the first collecting space 1001, and the bottom end of the communicating member 40 can be covered by the liquid introduced into the first collecting space 1001 through the separating structure 311, so as to prevent the gas from entering the second collecting space 1003 through the communicating channel 401 during the subsequent impurity removal process, thereby affecting the gas purifying effect.

Referring to fig. 1 to 2, the pipe body 10 has a liquid outlet 103 in communication with the first collecting space 1001, and the liquid outlet 103 is used for discharging liquid and particulate matters in the first collecting space 1001, so as to prevent the situation that the liquid level in the first collecting space 1001 and the second collecting space 1003 is higher than the height of the top ends of the first impurity removing pipe 31 and the impurity removing pipe 321, and the impurity removing function is disabled.

Preferably, the liquid drain 103 is located at a lower end of the first collecting space 1001, so that the particulate matter in the first collecting space 1001 is guided out with the liquid as a whole under the action of gravity, so as to collect the liquid and the particulate matter.

The working method of the pipeline type gas purifying equipment is provided, and comprises the following steps:

The gas flowing at a predetermined flow rate enters the first gas flow channel 3101 of the first impurity removing duct 31 through the gas inlet 101, the gas forms a cyclone by impacting the cyclone blades 21 of the cyclone exciting assembly 20, the gas flowing in the cyclone form is guided to the second impurity removing duct 32 along the first gas flow channel 3101, in the process, at least part of liquid and particulate matters in the gas are pressed close to the inner wall of the first impurity removing duct 31 by centrifugal force and enter the first collecting space 1001 formed by the outer wall of one end part of the first impurity removing duct 31 far away from the gas inlet 101 and the inner wall of the duct body 10 together through the separating structure 311 formed on the peripheral wall of the first impurity removing duct 31 so as to primarily remove impurities;

The primarily impurity-removed gas is discharged from the first gas flow channel 3101 in a cyclone form and enters a first treatment space 1002 formed by an end surface of the first impurity removal pipe 31, which is close to the second impurity removal pipe 32, and the inner wall of the pipe body 10, wherein the liquid and the particulate matters in the gas are pressed close to the inner wall of the first treatment space 1002 by the pipe body 10 under the action of centrifugal force, and flow downwards along the inner wall of the pipe body 10 under the action of gravity to be led into the first collecting space 1001 for secondary impurity removal, and the secondarily impurity-removed gas is led to the gas outlet 102 through the second gas flow channel 3201 of the second impurity removal pipe 32.

The working method of the pipeline type gas purifying device further comprises the following steps:

The gas flowing in the cyclone form through the cyclone blades 21 passes through the transition portion 312 of the first impurity removing duct 31 to be enlarged in cyclone size, so that the centrifugal force applied to the gas is increased, and the gas purifying effect is enhanced.

The working method of the pipeline type gas purifying device further comprises the following steps:

The gas after secondary impurity removal is discharged from the second gas flow channel 3201 in a cyclone form and enters a second treatment space 1004 formed by one end face of the second impurity removal pipeline 32, which is close to the third impurity removal pipeline 33, and the inner wall of the pipeline body 10, wherein liquid and particulate matters in the gas are pressed close to the pipeline body 10 under the action of centrifugal force to form the inner wall of the second treatment space 1004, and flow downwards along the inner wall of the pipeline body 10 under the action of gravity to be led into the second collecting space 1003, so that the gas after tertiary impurity removal is led to the gas outlet 102 through the third gas flow channel 3301 of the third impurity removal pipeline 33.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are by way of example only and are not limiting. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and described in the examples and embodiments of the invention may be modified or practiced without departing from the principles described.

Claims (10)

1. Pipeline formula gas purification equipment, its characterized in that, pipeline formula gas purification equipment:

the pipeline body is provided with an air inlet and an air outlet, the air inlet and the air outlet are oppositely arranged and respectively formed at the high end and the bottom end of the pipeline body, the air inlet is used for introducing gas flowing at a preset flow rate, and the air outlet is used for discharging the gas after impurity removal operation;

the cyclone excitation assembly comprises a plurality of cyclone blades and a mounting shaft, the cyclone blades are arranged on the radial direction of the mounting shaft and are distributed at intervals, and the cyclone blades are of an inclined design at a preset inclination angle;

an impurity removal conduit set, the impurity removal conduit set comprising:

A first impurity removing duct mounted in the duct body and located at an end of the duct body near the air inlet, the first impurity removing duct having a first air flow passage with its two ends respectively facing the air inlet and the air outlet and communicating with the air inlet, an end of the swirl vane away from the mounting shaft being connected to an inner wall of the first impurity removing duct, the gas introduced into the first air flow passage from the air inlet impinging on the cyclone exciting assembly to form a cyclone and being directed in the form of a cyclone to the air outlet, an outer wall of the first impurity removing duct away from the end of the air inlet and an inner wall of the duct body together forming a first collecting space, a peripheral wall of the first impurity removing duct forming a plurality of separation structures communicating with the first air flow passage, the plurality of separation structures being arranged at intervals, the first air flow passage communicating with the first collecting space through the separation structures, the separation structures being located in the direction of the cyclone exciting assembly and being directed in the direction of the cyclone exciting assembly to at least one of the air outlet and being directed in the direction of the centrifugal force of the liquid particles flowing out of the separation structure;

The second impurity removing pipeline is arranged on the pipeline body, the second impurity removing pipeline is positioned on one side, away from the air inlet, of the first impurity removing pipeline and is separated from the first impurity removing pipeline by a preset distance, a first processing space communicated with the first collecting space is formed by the first impurity removing pipeline, which is close to one end face of the second impurity removing pipeline, and the inner wall of the pipeline body, the second impurity removing pipeline is provided with a second airflow channel, one end opening of the second airflow channel corresponds to the air outlet, the first airflow channel and one end opening of the second airflow channel are respectively far away from the air inlet and are communicated with the first processing space, cyclone-type circulating gas discharged by the first airflow channel can be centrifugally removed in the first processing space and finally enter the second airflow channel to be discharged from the air outlet, cyclone-type circulating gas flowing in the first processing space can be centrifugally thrown down to the inner wall of the pipeline body under the action of gravity force of gravity and can be enabled to flow towards the inner wall of the cyclone-type collecting space.

2. A pipe-type gas cleaning apparatus according to claim 1, characterized in that the separation structure is implemented as a slot which exhibits an inclined design and the inclination direction is the same as the inclination direction of the swirl vanes.

3. A ducted gas cleaning apparatus according to claim 1, wherein the first impurity removal duct forms a transition portion near an end of the second impurity removal duct, the transition portion having a gradually increasing cross-sectional dimension with reference to a direction in which the gas flows through the first gas flow passage to be directed to the first process space, the transition portion being for increasing a dimension of a cyclone formed by the gas passing through the cyclone exciting assembly and guiding the gas into the first process space.

4. A pipe-type gas cleaning apparatus according to any one of claims 1-3, wherein the second impurity removing pipe comprises a impurity removing pipe body and a joint portion, the second gas flow passage is formed in the impurity removing pipe body, the joint portion is installed in a radial direction of the impurity removing pipe body, and the impurity removing pipe body is connected with an inner wall of the pipe body through the joint portion, an outer wall of an end portion of the impurity removing pipe body away from the first impurity removing pipe forms a second collecting space together with the joint portion and the inner wall of the pipe body, the impurity removing pipe group further comprises a third impurity removing pipe installed in the pipe body, the third impurity removing pipe is located at a side of the second impurity removing pipe away from the first impurity removing pipe and is spaced apart from the second impurity removing pipe by a predetermined distance, the second impurity removing pipeline is close to one end face of the third impurity removing pipeline, the third impurity removing pipeline and the inner wall of the pipeline body together form a second treatment space communicated with the second collecting space, the third impurity removing pipeline is provided with a third air flow channel, two end ports of the third air flow channel are respectively communicated with the air outlet and the second treatment space, the port of the second air flow channel corresponding to the air outlet is communicated with the second treatment space, the gas exhausted by the second air flow channel and circulated in a cyclone mode can be centrifugally removed in the second treatment space and finally enter the third air flow channel to be exhausted from the air outlet, liquid and particle substances in the gas circulated in the cyclone mode in the second treatment space can be thrown towards the pipeline body under the action of centrifugal force to form the inner wall of the second treatment space, so that it can flow downwards along the inner wall of the pipe body under the action of gravity to be collected in the second collecting space.

5. A pipeline type gas cleaning apparatus according to claim 4, wherein the joint portion is formed with a through hole penetrating up and down, the through hole is communicated with the second collecting space, the second collecting space is communicated with the first processing space through the through hole, the second collecting space is located above the first collecting space, and liquid and particulate matters in the second collecting space can pass through the through hole and flow through the first processing space by gravity to finally be introduced into the first collecting space.

6. A pipeline type gas cleaning apparatus according to claim 5, further comprising a communicating member mounted to the through hole and extending toward the second collecting space, the communicating member having a communicating passage, the second collecting space being in communication with the first collecting space through the communicating passage, and liquid and particulate matter collected in the second collecting space being gravity-fed into the first collecting space through the communicating passage.

7. A pipeline gas cleaning apparatus as claimed in claim 6, wherein the communication member extends to a lower end of the first collecting space, and a bottom end of the communication member is capable of being submerged by liquid introduced into the first collecting space through the separation structure.

8. A ducted gas cleaning apparatus according to claim 1, wherein the duct body has a liquid discharge port communicating with the first collecting space, the liquid discharge port being adapted to discharge liquid and particulate matter in the first collecting space.

9. The ducted gas cleaning apparatus according to claim 8, wherein the liquid discharge port is located at a lower end portion of the first collecting space.

10. The working method of the pipeline type gas purifying equipment is characterized by comprising the following steps of:

the method comprises the steps that gas flowing at a preset flow rate enters a first airflow channel of a first impurity removing pipeline through an air inlet, the gas forms a cyclone by impacting a cyclone blade of a cyclone exciting assembly, the gas flowing in a cyclone mode is guided to a second impurity removing pipeline along the first airflow channel, in the process, at least part of liquid and particulate matters in the gas are pressed close to the inner wall of the first impurity removing pipeline under the action of centrifugal force and enter a first collecting space formed by the outer wall of one end part of the first impurity removing pipeline far away from the air inlet and the inner wall of a pipeline body through a separation structure formed on the peripheral wall of the first impurity removing pipeline so as to remove impurities primarily;

the gas after preliminary impurity removal is discharged from the first gas flow channel in a cyclone mode and enters a first treatment space formed by the end face, far away from the second impurity removal pipeline, of the first impurity removal pipeline, the second impurity removal pipeline and the inner wall of the pipeline body, liquid and particulate matters in the gas are pressed close to the pipeline body under the action of centrifugal force to form the inner wall of the first treatment space, flow downwards along the inner wall of the pipeline body under the action of gravity to be led into the first collection space, so that secondary impurity removal is performed, and the gas after secondary impurity removal is guided to the gas outlet through the second gas flow channel of the second impurity removal pipeline.