CN118788121A - Air pollution control equipment - Google Patents

Abstract

The invention discloses air pollution control equipment, which relates to the technical field of pollution control and comprises a first processing unit, wherein the first processing unit comprises a reaction kettle and a liquid inlet component arranged on the reaction kettle, a mixing component is arranged in the reaction kettle, and a sealing cover component is arranged on the reaction kettle; the second treatment unit comprises a first calandria and an adsorption assembly arranged in the first calandria, wherein the adsorption assembly is connected with a transmission assembly, and one side of the second calandria assembly is provided with an exhaust fan; the liquid inlet component comprises a communicating pipe and a liquid inlet pipe connected to one side of the communicating pipe; the mixing component comprises a rotating ring and stirring blades connected to the inner side of the rotating ring, and a connecting toothed ring is connected to the upper side of the rotating ring; the problem of among the current equipment to the clearance of dirt convenient inadequately, need frequent dismouting equipment to clear up the maintenance, reduced work efficiency, increased unnecessary working cost is solved.

Description

Air pollution control equipment

Technical Field

The present invention relates to the technical field of pollution control, and in particular to air pollution control equipment.

Background Art

With the rapid development of industrialization and urbanization, the problem of air pollution has become increasingly serious, posing a huge threat to human health and the ecological environment. Existing air pollution control equipment mainly includes physical adsorption, chemical absorption, biological, photocatalytic and electrostatic precipitators. These devices have their own characteristics, but they all have certain limitations. For example, in the process of physical adsorption, dirt is usually formed on the adsorption parts. If the dirt is not cleaned in time, it will affect the effect of physical adsorption. Frequent disassembly and cleaning of the equipment will greatly increase the workload, reduce the working efficiency of the equipment, and increase unnecessary labor and time costs.

Summary of the invention

Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.

In view of the problem that the cleaning of dirt in the above-mentioned existing equipment is not convenient enough and the equipment needs to be frequently disassembled for cleaning and maintenance, which reduces work efficiency and increases unnecessary work costs, the present invention is proposed.

In order to solve the above technical problems, the present invention provides the following technical solutions: an air pollution control equipment, comprising a first processing unit, the first processing unit comprising a reactor and a liquid inlet assembly arranged on the reactor, a mixing assembly is installed inside the reactor, a capping assembly is installed on the reactor, and an air inlet assembly is connected inside the capping assembly;

The second processing unit includes a first row of pipes and an adsorption assembly arranged inside the first row of pipes, the adsorption assembly is connected to a transmission assembly, and the transmission assembly is connected to a second row of pipes assembly, and an exhaust fan is arranged on one side of the second row of pipes assembly.

As a preferred solution of the air pollution control equipment of the present invention, the liquid inlet assembly includes a connecting pipe and a liquid inlet pipe connected to one side of the connecting pipe, and the other side of the connecting pipe is connected to an atomizing nozzle.

As a preferred solution of the air pollution control equipment described in the present invention, the mixing assembly includes a rotating ring and a stirring blade connected to the inner side of the rotating ring, the upper side of the rotating ring is connected to a connecting gear ring, and the connecting gear ring is connected to a first gear.

As a preferred solution of the air pollution control equipment of the present invention, wherein: the sealing cover assembly comprises a cover body and a sealing ring connected to the cover body;

The air intake assembly comprises an air intake port and an air intake fan installed inside the air intake port.

As a preferred solution of the air pollution control equipment described in the present invention, the adsorption component includes a movable mounting seat and a filter element connected to the movable mounting seat, and a cleaning element is connected to the outer side of the filter element.

As a preferred solution of the air pollution control equipment of the present invention, the filter element comprises a filter frame and a filter screen connected to the inside of the filter frame, and the outside of the filter frame is connected to a first rack;

The cleaning member comprises a cleaning wheel and a second gear connected to the cleaning wheel.

As a preferred solution of the air pollution control equipment described in the present invention, the transmission assembly includes a transmission frame and a first matching block connected to the upper side of the transmission frame, and a third gear is arranged inside the transmission frame, one side of the third gear is provided with upper meshing teeth, and the other side of the third gear is connected with lower meshing teeth, the outer side of the transmission frame is connected with a clamping piece, and one side of the clamping piece is provided with an adjusting piece.

As a preferred solution of the air pollution control equipment described in the present invention, the clamping member includes a clamping rod and a matching groove provided on the clamping rod, and one side of the clamping rod is connected to a limited displacement plate.

As a preferred solution of the air pollution control equipment described in the present invention, the adjusting member includes an adjusting screw and an adjusting plate connected to the outside of the adjusting screw, a second matching block is connected to the upper side of the adjusting plate, and one end of the adjusting plate is connected to a limiting slider.

As a preferred solution of the air pollution control equipment described in the present invention, the second row of pipes assembly includes a second row of pipes body and an exhaust pipe opened inside the second row of pipes body, a sewage outlet is opened on the lower side of the second row of pipes body, and a second rack is connected to the upper side of the second row of pipes body, and a third matching block is connected to the second row of pipes body.

The beneficial effects of the present invention are as follows: through the setting of the first processing unit, the liquid inlet component is used to spray the neutralizing liquid inside the reactor, and the mixing component is used to mix the gas and the neutralizing liquid to complete the preliminary treatment of the atmosphere; then the gas is further treated by the second processing unit and discharged from the equipment; when the second processing unit is used for treatment, the gas is extracted by the exhaust fan and passed through the adsorption component, and the gas is adsorbed and filtered by the filter element. At the same time, the transmission component and the second row of pipe components are used to make the adsorption component reciprocate back and forth inside the second row of pipe components, and then Since cleaning parts are arranged on both sides of the filter element, the dirt adsorbed on the filter element can be cleaned when the filter element performs reciprocating motion, and the cleaned dirt is discharged from the sewage outlet. After the coordinated treatment between the adsorption component, the transmission component and the second row of pipe components, the gas is purified and finally discharged from the equipment to complete the pollution control of the atmosphere. Through the setting of the transmission component and the second row of pipe components, the processing components can be continuously cleaned during the cleaning process, which can effectively prevent the influence of dirt on the filter element on the cleaning effect. At the same time, there is no need to frequently disassemble the equipment for cleaning and maintenance, saving manpower and time costs.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

FIG1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a schematic diagram of the overall cross-sectional structure of the present invention.

FIG3 is a schematic cross-sectional structural diagram of the first processing unit in the present invention.

FIG. 4 is a schematic diagram of the explosion structure of the second processing unit in the present invention.

FIG. 5 is a schematic cross-sectional view of the transmission assembly of the present invention.

FIG. 6 is an enlarged structural schematic diagram of point A in FIG. 5 .

FIG. 7 is a schematic diagram of the structure of the adsorption assembly in the present invention.

FIG. 8 is an enlarged structural schematic diagram of point B in FIG. 7 .

FIG. 9 is a schematic diagram of the structure of the transmission assembly of the present invention.

In the figure: 10, first processing unit; 11, reactor; 12, liquid inlet assembly; 121, connecting pipe; 122, liquid inlet pipe; 123, atomizing nozzle; 13, mixing assembly; 131, rotating ring; 132, stirring blade; 133, connecting gear ring; 134, first gear; 14, capping assembly; 141, cover body; 142, sealing ring; 15, air inlet assembly; 151, air inlet; 152, air inlet fan; 20, second processing unit; 21, first row of pipes; 22, adsorption assembly; 221, movable mounting seat; 222, filter element; 2221, filter frame; 2222, filter screen; 2223, first rack; 223, cleaning Components; 2231, cleaning wheel; 2232, second gear; 23, transmission assembly; 231, transmission frame; 232, first matching block; 233, third gear; 234, upper meshing tooth; 235, lower meshing tooth; 236, clamping member; 2361, clamping rod; 2362, matching groove; 2363, limit displacement plate; 237, adjusting member; 2371, adjusting screw; 2372, adjusting displacement plate; 2373, second matching block; 2374, limiting slider; 24, second row pipe assembly; 241, second row pipe body; 242, exhaust pipe; 243, drain outlet; 244, second rack; 245, third matching block; 25, exhaust fan.

DETAILED DESCRIPTION

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

Example 1

Referring to Figures 1 to 3, a first embodiment of the present invention provides an air pollution control equipment, including a first processing unit 10, the first processing unit 10 includes a reactor 11 and a liquid inlet assembly 12 arranged on the reactor 11, and a mixing assembly 13 is installed inside the reactor 11, a cover assembly 14 is installed on the reactor 11, and an air inlet assembly 15 is connected to the inside of the cover assembly 14, wherein the liquid inlet assembly 12 is fixedly installed on the outside of the reactor 11 and communicated with the inside of the reactor 11, the mixing assembly 13 is installed inside the reactor 11, and the mixing assembly 13 can rotate in a circle inside the reactor 11 by using the setting of the connecting base, and the cover assembly 14 is installed on the upper side of the reactor 11 and fixedly installed and connected by bolts.

The liquid inlet assembly 12 includes a connecting pipe 121 and a liquid inlet pipe 122 connected to one side of the connecting pipe 121, and an atomizing nozzle 123 is connected to the other side of the connecting pipe 121, wherein the connecting pipe 121 and the liquid inlet pipe 122 and the connecting pipe 121 and the atomizing nozzle 123 are all connected together, so that the neutralizing liquid can be sprayed into the interior of the reactor 11, and at the same time, a plurality of groups of atomizing nozzles 123 are evenly spaced and arranged on the connecting pipe 121, and the atomizing nozzles 123 are evenly distributed and arranged with respect to the center line of the reactor 11, so that the neutralizing liquid can be evenly sprayed everywhere inside the reactor 11, and the atomizing nozzles 123 are then used to ensure that the liquid is sprayed in a mist form, making it easier to combine with the gas and improving the processing efficiency.

The mixing assembly 13 includes a rotating ring 131 and a stirring blade 132 connected to the inner side of the rotating ring 131, a connecting gear ring 133 is connected to the upper side of the rotating ring 131, and a first gear 134 is connected to the connecting gear ring 133, wherein a circular slide groove is provided on the outer side of the rotating ring 131, so that the rotating ring 131 is installed on the circular slide rail inside the reactor 11, so that the rotating ring 131 can rotate inside the reactor 11, and the stirring blade 132 is fixedly connected to the inner side of the rotating ring 131 by a cross bar, so that the rotating ring 131 can drive the stirring blade 132 to rotate, and a connecting gear ring 133 is fixedly connected to the upper side of the rotating ring 131, so that it is meshed and connected with the first gear 134, and the first gear 134 is driven to rotate by a driving motor, and then the rotating ring 131 can drive the stirring blade 132 to rotate through the meshing connection between the connecting gear ring 133 and the first gear 134, so as to mix the gas and the neutralizing liquid.

The sealing ring 142 is installed on the upper side of the reactor 11 to seal the installation between the cover body 141 and the reactor 11 to prevent air leakage. At the same time, mounting seats are respectively provided on the outer sides of the cover body 141 and the reactor 11. The cover body 141 can be fixedly installed on the upper side of the reactor 11 by using bolts to cooperate with the installation of the mounting seats. The air intake assembly 15 includes an air inlet 151 and an air intake fan 152 installed inside the air inlet 151. The air inlet 151 is installed inside the cover body 141 and is connected to the interior of the reactor 11. At the same time, an air intake fan 152 is provided inside the air inlet 151 to suck the atmosphere into the interior of the reactor 11 for convenient processing.

When the equipment is used to perform preliminary treatment on the atmosphere, the air intake fan 152 is used to suck the atmosphere from the air inlet 151 into the interior of the reactor 11. At the same time, in conjunction with the setting of the connecting pipe 121 and the liquid inlet pipe 122, the atomizing nozzle 123 is used to evenly spray the neutralizing liquid into the interior of the reactor 11, so that the neutralizing liquid neutralizes the pollutants in the atmosphere. At the same time, the driving motor is used to drive the first gear 134 to rotate, and the meshing connection between the connecting gear ring 133 and the first gear 134 is used to rotate the rotating ring 131, thereby driving the stirring blade 132 to rotate in a circle, so that the stirring blade 132 mixes the gas and the neutralizing liquid, thereby improving the mixing efficiency between the two, and completing the preliminary treatment of the atmosphere.

Example 2

2 and 4 to 9, a second embodiment of the present invention is shown. Based on the embodiment 1, the embodiment is further improved in that: the second processing unit 20 includes a first row of pipes 21 and an adsorption assembly 22 arranged inside the first row of pipes 21, the adsorption assembly 22 is connected to a transmission assembly 23, and the transmission assembly 23 is connected to a second row of pipes assembly 24, and an exhaust fan 25 is arranged on one side of the second row of pipes assembly 24, wherein the first row of pipes 21 and the second row of pipes assembly 24 are connected together by bolts, and the second row of pipes assembly 24 is connected to the reactor 11 and communicated with the reactor 11, the second row of pipes assembly 24 is symmetrically arranged at two locations on the reactor 11, and exhaust fan 25 is used for exhaust treatment, the adsorption assembly 22 is installed inside the second row of pipes assembly 24, and is used for secondary treatment of the gas in the reactor 11, and the transmission assembly 23 drives the adsorption assembly 22 to move to clean the adsorption assembly 22.

The adsorption assembly 22 includes a movable mounting seat 221 and a filter 222 connected to the movable mounting seat 221, and a cleaning member 223 is connected to the outer side of the filter 222, wherein the filter 222 is connected to the movable mounting seat 221 through a connecting rod, the filter 222 moves inside the second row of pipe assemblies 24, and the movable mounting seat 221 is located outside the second row of pipe assemblies 24, and the cleaning member 223 is arranged on the outer side of the filter 222, and four corresponding positions are arranged for cleaning the filter 222; the filter 222 includes a filter frame 2221 and a filter net 2222 connected to the inside of the filter frame 2221, and the outer side of the filter frame 2221 is connected to a first rack 2223 , wherein the filter screen 2222 is fixedly installed inside the filter frame 2221, and a first rack 2223 is connected to the outer side of the upper end of the filter frame 2221, so that the first rack 2223 is connected to the cleaning member 223; the cleaning member 223 includes a cleaning wheel 2231 and a second gear 2232 connected to the cleaning wheel 2231, wherein the second gear 2232 is fixedly connected to the upper side of the cleaning wheel 2231, and the cleaning wheel 2231 is connected to the inside of the second row of pipe components 24 and can rotate inside the second row of pipe components 24, and the second gear 2232 is meshed with the first rack 2223, so that the filter frame 2221 can drive the cleaning wheel 2231 to rotate when it moves.

The transmission assembly 23 includes a transmission frame 231 and a first matching block 232 connected to the upper side of the transmission frame 231, and a third gear 233 is arranged inside the transmission frame 231, an upper meshing tooth 234 is arranged on one side of the third gear 233, and a lower meshing tooth 235 is connected to the other side of the third gear 233, a clamping member 236 is connected to the outer side of the transmission frame 231, and an adjusting member 237 is arranged on one side of the clamping member 236, wherein the transmission frame 231 is installed on the upper side of the inner part of the mobile mounting seat 221, and the transmission frame 231 can be limitedly moved inside the mobile mounting seat 221, and at the same time, the lower part of the transmission frame 231 The side uses a spring structure to connect with the movable mounting seat 221. When the transmission frame 231 moves up and down, the third gear 233 can be meshed with the upper meshing tooth 234 and the lower meshing tooth 235 respectively. At the same time, the first matching block 232 is arranged on both sides of the upper end of the transmission frame 231, and an inclined surface is opened on the side of the first matching block 232. The inclined surfaces on the two first matching blocks 232 are opened on the same side. The two sides of the transmission frame 231 are symmetrically connected with the clamping parts 236, and one side of the clamping part 236 is connected with an adjusting part 237. The clamping part 236 can be clamped and connected with the transmission frame 231.

The clamping member 236 includes a clamping rod 2361 and a matching groove 2362 provided on the clamping rod 2361, and one side of the clamping rod 2361 is connected to a limited displacement plate 2363, wherein the clamping rod 2361 moves inside the movable mounting seat 221, and the limited displacement plate 2363 is used to limit the movement of the clamping rod 2361, and a spring is provided on one side of the limited displacement plate 2363 for resetting the position of the clamping rod 2361, and the matching groove 2362 is provided inside the clamping rod 2361, and its cross-sectional shape is a right-angled trapezoid; the adjusting member 237 includes an adjusting screw 2371 and an adjusting shift plate 2372 connected to the outside of the adjusting screw 2371, and the upper side of the adjusting shift plate 2372 is It is connected to a second matching block 2373, and one end of the adjusting plate 2372 is connected to a limiting slider 2374, wherein the adjusting screw 2371 is installed inside the movable mounting seat 221, and a gear structure is connected to the lower end of the adjusting screw 2371 to drive the adjusting screw 2371 to rotate, and at the same time, the outer thread of the adjusting screw 2371 is connected to the adjusting plate 2372, and a second matching block 2373 is arranged on the side of the adjusting plate 2372 close to the clamping member 236, so that the second matching block 2373 is matched and connected with the matching groove 2362, and a limiting slider 2374 is connected to the other side of the adjusting screw 2371 to limit the movement of the adjusting plate 2372.

The second row of pipe assembly 24 includes a second row of pipe body 241 and an exhaust pipe 242 opened inside the second row of pipe body 241, a sewage outlet 243 is opened on the lower side of the second row of pipe body 241, and a second rack 244 is connected to the upper side of the second row of pipe body 241, and a third matching block 245 is connected to the second row of pipe body 241, wherein the exhaust pipe 242 is opened inside the second row of pipe body 241 for exhausting gas, a movable cavity is provided on both sides of the exhaust pipe 242, and a sewage outlet 243 is provided on the lower side of the movable cavity for discharging cleaned dirt, a vertical plate structure is installed on the upper side of the second row of pipe body 241, and the third matching block 245 is connected to the vertical plate structure so that the third matching block 245 can be matched and connected with the first matching block 232, and a second rack 244 is provided on one side of the vertical plate structure, and the adjusting screw 2371 is rotated by the meshing connection between the second rack 244 and the gear structure connected to the adjusting screw 2371.

When in use, the gas in the reactor 11 is extracted by the exhaust fan 25, and is adsorbed and filtered through the exhaust pipe 242 and the filter screen 2222, and finally discharged to the outside of the device through the first row of pipes 21; and in the process of using the filter screen 2222 for processing, the third gear 233 is driven to rotate by the driving motor installed on the second row of pipes 241, and then the meshing connection between the third gear 233 and the upper meshing tooth 234 is used to move the transmission frame 231, thereby driving the filter frame 2 221 moves, and the movement of the filter frame 2221 drives the first rack 2223 to move, and the meshing connection between the first rack 2223 and the second gear 2232 is used to rotate the cleaning wheel 2231, and the filter screen 2222 is cleaned, and the cleaned dirt is discharged through the sewage outlet 243; when the transmission frame 231 moves to one side, the meshing connection between the second rack 244 and the gear structure connected to the adjusting screw 2371 is used to rotate the adjusting screw 2371 ... The threaded connection between the adjusting screw rod 2371 and the adjusting shift plate 2372 causes the second matching block 2373 to move and match with the matching groove 2362, so that the clamping rod 2361 moves and releases the clamping with the transmission frame 231, and then the transmission frame 231 moves upward under the action of the spring, so that the upper meshing teeth 234 and the third gear 233 are disengaged, and the third gear 233 and the lower meshing teeth 235 are engaged, so that the transmission frame 231 moves in the opposite direction; and when the transmission frame 23 When the transmission frame 231 is moved to the other side again, the inclined surface between the first matching block 232 and the third matching block 245 is matched to move the transmission frame 231 downward, so that the third gear 233 is disengaged from the lower meshing tooth 235 and re-engaged with the upper meshing tooth 234, so that the transmission frame 231 is moved to the other side again, and the reciprocating movement of the transmission frame 231 is completed, so as to ensure the reciprocating cleaning of the filter screen 2222, thereby reducing the operation of disassembling and cleaning the equipment, improving work efficiency and saving costs.

The remaining structures are the same as those of Example 1.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims (10)

1. An air pollution control equipment, characterized in that: it includes: A first processing unit (10), the first processing unit (10) comprising a reaction kettle (11) and a liquid inlet assembly (12) arranged on the reaction kettle (11), a mixing assembly (13) being installed inside the reaction kettle (11), a sealing assembly (14) being installed on the reaction kettle (11), and an air inlet assembly (15) being connected inside the sealing assembly (14); A second processing unit (20), the second processing unit (20) comprising a first row of pipes (21) and an adsorption assembly (22) arranged inside the first row of pipes (21), the adsorption assembly (22) being connected to a transmission assembly (23), and the transmission assembly (23) being connected to a second row of pipes assembly (24), and an exhaust fan (25) being arranged on one side of the second row of pipes assembly (24). 2. The air pollution control equipment according to claim 1 is characterized in that: the liquid inlet component (12) includes a connecting pipe (121) and a liquid inlet pipe (122) connected to one side of the connecting pipe (121), and the other side of the connecting pipe (121) is connected to an atomizing nozzle (123). 3. The air pollution control equipment according to claim 2 is characterized in that: the mixing assembly (13) includes a rotating ring (131) and a stirring blade (132) connected to the inner side of the rotating ring (131), and the upper side of the rotating ring (131) is connected to a connecting gear ring (133), and the connecting gear ring (133) is connected to a first gear (134). 4. The air pollution control equipment according to claim 3, characterized in that: the sealing cover assembly (14) comprises a cover body (141) and a sealing ring (142) connected to the cover body (141); The air intake assembly (15) comprises an air intake port (151) and an air intake fan (152) installed inside the air intake port (151). 5. The air pollution control equipment according to claim 4 is characterized in that: the adsorption component (22) includes a movable mounting seat (221) and a filter element (222) connected to the movable mounting seat (221), and a cleaning element (223) is connected to the outer side of the filter element (222). 6. The air pollution control equipment according to claim 5, characterized in that: the filter element (222) comprises a filter frame (2221) and a filter screen (2222) connected to the inside of the filter frame (2221), and the outside of the filter frame (2221) is connected to a first rack (2223); The cleaning member (223) comprises a cleaning wheel (2231) and a second gear (2232) connected to the cleaning wheel (2231). 7. The air pollution control equipment according to claim 6 is characterized in that: the transmission assembly (23) includes a transmission frame (231) and a first matching block (232) connected to the upper side of the transmission frame (231), and a third gear (233) is arranged inside the transmission frame (231), one side of the third gear (233) is provided with an upper meshing tooth (234), and the other side of the third gear (233) is connected with a lower meshing tooth (235), the outer side of the transmission frame (231) is connected with a clamping piece (236), and one side of the clamping piece (236) is provided with an adjusting piece (237). 8. The air pollution control equipment according to claim 7 is characterized in that: the clamping member (236) includes a clamping rod (2361) and a matching groove (2362) provided on the clamping rod (2361), and one side of the clamping rod (2361) is connected to the limited displacement plate (2363). 9. The air pollution control equipment according to claim 8 is characterized in that: the adjusting member (237) includes an adjusting screw (2371) and an adjusting shift plate (2372) connected to the outside of the adjusting screw (2371), the upper side of the adjusting shift plate (2372) is connected to a second matching block (2373), and one end of the adjusting shift plate (2372) is connected to a limiting slider (2374). 10. The air pollution control equipment according to claim 9 is characterized in that: the second row pipe assembly (24) includes a second row pipe body (241) and an exhaust pipe (242) opened inside the second row pipe body (241), a sewage outlet (243) is opened on the lower side of the second row pipe body (241), and a second rack (244) is connected to the upper side of the second row pipe body (241), and a third matching block (245) is connected to the second row pipe body (241).