CN213843176U

CN213843176U - Continuous smoke emission measuring device

Info

Publication number: CN213843176U
Application number: CN202022797438.0U
Authority: CN
Inventors: 李媛; 唐田; 王伟佳; 黄思迪
Original assignee: Zhongke Tonghe Baoding Environmental Testing Technology Co ltd
Current assignee: Zhongke Tonghe Baoding Environmental Testing Technology Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-07-30
Anticipated expiration: 2030-11-27

Abstract

The utility model relates to a technical field is measured in the fume emission, specifically is a continuous emission of flue gas measuring device, include the dustcoat by the back shell of taking out, the bottom bilateral symmetry of dustcoat is provided with the support, install the motor of size looks adaptation in the dustcoat, the front-mounted of dustcoat has the fan housing, the front portion of fan housing is provided with the smoking pipe, be provided with the floor on the interior circle anchor ring of smoking pipe, the round hole has been seted up to the centre of floor, install the disc in the fan housing, be provided with in the middle of the front portion of disc with the spacing post of round hole size looks adaptation, spacing post with the round hole rotates to be connected, be provided with the flabellum that a plurality of is circular array and arranges on the preceding terminal surface of disc, be provided with the transmission shaft in the middle of the back of disc. The utility model discloses a predominant use provides a motor can be in the on-state always, can not reduce the flue gas continuous emission measuring device of the fault incidence of motor because of frequently cutting off the motor.

Description

Continuous smoke emission measuring device

Technical Field

The utility model relates to a technical field is measured in the fume emission, specifically is a fume continuous emission measuring device.

Background

The smoke continuous emission measuring device is a monitoring device suitable for the continuous exhaust emission of a boiler, and the existing smoke continuous emission measuring device usually starts a motor to extract smoke during measurement when continuous measurement is carried out, and switches off the motor after the measurement is carried out once; in view of the fact that the motor is started again for next measurement to extract smoke, the motor is frequently started and disconnected, the motor is prone to failure, and more power is consumed during starting of the motor, a smoke continuous emission measuring device is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a smoke continuous emission measuring device, which aims to solve the problems that the prior smoke continuous emission measuring device provided in the background art is used for extracting smoke by starting a motor during measurement and disconnecting the motor after one measurement when the continuous measurement is carried out; the next time the motor is started again for smoke extraction, the motor is frequently started and disconnected, the motor is easy to break down, and more electric power is consumed during the starting of the motor.

In order to achieve the above object, the utility model provides a following technical scheme:

a smoke continuous emission measuring device comprises an outer cover with a shell drawn from the back, wherein supports are symmetrically arranged on two sides of the bottom of the outer cover, a motor with matched size is installed in the outer cover, a fan cover is installed on the front portion of the outer cover, a smoke absorbing pipe is arranged on the front portion of the fan cover, rib plates are arranged on the inner circle ring surface of the smoke absorbing pipe, a round hole is formed in the middle of each rib plate, a disc is installed in the fan cover, a limiting column matched with the size of the round hole is arranged in the middle of the front portion of the disc, the limiting column is rotatably connected with the round hole, a plurality of fan blades distributed in a circular array are arranged on the front end surface of the disc, a transmission shaft is arranged in the middle of the back portion of the disc, a mounting groove is formed in the transmission shaft, a bearing matched with size is installed on the mounting groove, and a limiting ring matched with size is fixedly installed on the outer ring surface of the bearing, be provided with the control lever on the spacing ring, one side of control lever is provided with the fixed block, be provided with the spring on the preceding terminal surface of control lever, be provided with the sheetmetal on the rear end face of control lever, correspond on the dustcoat the control lever slide hole, fixed orifices have been seted up to the position of fixed block, inlay respectively at the both ends of spring in the control lever with on the preceding terminal surface of slide hole, two conducting strips are installed to the symmetry on the rear end face of slide hole, spacing hole has been seted up to the front portion of dustcoat, spacing hole with transmission shaft size looks adaptation just is connected for rotating, the end of transmission shaft is provided with the lug that a plurality of is circular array and arranges, the terminal coaxial coupling of output shaft of motor has the carousel, the end of carousel be provided with lug engaged with recess.

Preferably, a switch is installed on the top of the outer cover, and the switch is electrically connected with the motor.

Preferably, the fan housing and the outer cover are of an integrally formed structure.

Preferably, the outer cover and the fan cover are fixed by tight welding.

Preferably, the length of the limiting column is larger than the distance between the disc and the rib plate.

Preferably, the spring is in a compressed state.

Preferably, the bearing and the mounting groove, the bearing and the limiting ring are in interference fit.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses when using, put through the circuit through the switch, the motor is in the low-speed state, then shift out fixed block on the control lever from the fixed orifices, the control lever is automatic to the back removal under the thrust effect of spring, take the transmission shaft to move right simultaneously, the terminal lug of transmission shaft and the terminal carousel contact of being connected of motor, because the motor drives the carousel and does the low-speed rotation, the low-speed rotation of motor is favorable to the meshing of recess and lug, recess and lug mesh when the recess is changeed to and is located the same position with the lug, the sheetmetal on the control lever contacts with two conducting strips of installing on the slide opening simultaneously, the high-speed rotation circuit of motor is put through, the motor drives the disc and rotates fast, the flabellum on the disc rotates simultaneously with the flue gas from smoking pipe suction fan housing and by a chimney discharge, be used for measuring the flue; after the measurement is finished, the control rod is pushed forwards, the fast rotation circuit is disconnected, the transmission shaft is separated from the disc, the fan blades stop rotating, and the motor rotates at a low speed; when carrying out the continuous emission measurement of flue gas like this, the motor can be in the starting condition always, can not reduce the trouble incidence of motor because of frequently cutting off the motor, and the motor is in the starting condition always simultaneously, reduces because of the electric energy of start-up consumption, practices thrift the electric energy.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic overall appearance of the present invention;

FIG. 3 is a schematic overall sectional view of the present invention;

fig. 4 is a schematic view of the overall back structure of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 1;

fig. 6 is a schematic circuit diagram of the present invention.

In the figure: 1. a housing; 11. a limiting hole; 12. a support; 13. a slide hole; 14. a fixing hole; 15. a conductive sheet; 16. a switch; 2. a motor; 21. a turntable; 211. a groove; 3. a fan housing; 31. a smoking pipe; 32. a chimney; 33. a rib plate; 34. a circular hole; 4. a disc; 41. a fan blade; 42. a limiting column; 43. a drive shaft; 44. mounting grooves; 45. a bump; 5. a bearing; 6. a limiting ring; 61. a control lever; 62. a fixed block; 63. a spring; 64. a metal sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-6, the present invention provides a technical solution:

a smoke continuous emission measuring device comprises an outer cover 1 with a shell drawn from the back, wherein two sides of the bottom of the outer cover 1 are symmetrically provided with support seats 12, a motor 2 with a matched size is installed in the outer cover 1, a fan cover 3 is installed at the front part of the outer cover 1, a smoke absorbing pipe 31 is arranged at the front part of the fan cover 3, rib plates 33 are arranged on the inner circular surface of the smoke absorbing pipe 31, circular holes 34 are formed in the middle of the rib plates 33, a disc 4 is installed in the fan cover 3, a limiting column 42 with a matched size with the circular holes 34 is arranged in the middle of the front part of the disc 4, the limiting column 42 is rotatably connected with the circular holes 34, a plurality of fan blades 41 which are arranged in a circular array are arranged on the front end surface of the disc 4, a transmission shaft 43 is arranged in the middle of the back part of the disc 4, an installation groove 44 is formed in the transmission shaft 43, a bearing 5 with a matched size is installed on the installation groove 44, and a limiting ring 6 with a matched size is fixedly installed on the outer circular surface of the bearing 5, be provided with control lever 61 on the spacing ring 6, one side of control lever 61 is provided with fixed block 62, be provided with spring 63 on the preceding terminal surface of control lever 61, be provided with sheetmetal 64 on the rear end face of control lever 61, correspond control lever 61 on the dustcoat 1, slide opening 13 has been seted up to the position of fixed block 62, fixed orifices 14, inlay respectively in control lever 61 and on the preceding terminal surface of slide opening 13 at the both ends of spring 63, two conducting strips 15 are installed to the symmetry on the rear end face of slide opening 13, spacing hole 11 has been seted up to the front portion of dustcoat 1, spacing hole 11 just is connected for rotating with transmission shaft 43 size looks adaptation, the end of transmission shaft 43 is provided with the lug 45 that a plurality of is circular array and arranges, the terminal coaxial coupling of output shaft of motor 2 has carousel 21, the end of carousel 21 is provided with lug 45 engaged with recess 211 mutually.

Further, a switch 16 is mounted on the top of the housing 1, and the switch 16 is electrically connected to the motor 2. The switch 16 controls the opening and closing of the entire circuit, facilitates the opening and closing control of the circuit, and facilitates the rapid disconnection of the entire circuit in the event of a failure.

Further, the fan housing 3 and the outer cover 1 are both integrally formed. Adopt integrated into one piece structure to make each bent angle department smooth, connect the leakproofness good, and be favorable to mass production.

Further, the outer cover 1 and the fan housing 3 are fixed by tight welding. The connecting rod is fixed into a whole in a tight welding and fixing mode, and the connection firmness is guaranteed.

Further, the length of the limiting column 42 is larger than the distance between the disc 4 and the rib plate 33. So that the stopper 42 is always in the circular hole 34 of the rib 33 and does not fall out when the disc 4 moves forward and backward.

Further, the spring 63 is in a compressed state. The compressed spring 63 applies a pushing force to the control lever 61 so that it can automatically move backward, and when the transmission shaft 43 is in contact with the turntable 21, the spring 63 provides a pushing force to press the transmission shaft 43 against the turntable 21 without disengaging.

Further, the bearing 5 and the mounting groove 44, and the bearing 5 and the limit ring 6 are in interference fit. And the interference fit is adopted to ensure that the connection between the bearing 5 and the mounting groove 44 and the limiting ring 6 is firmer.

Specifically, the principle of the device is that when in use, the circuit is switched on through the switch 16 (corresponding to K1 in the circuit diagram of fig. 6 is closed), the motor 2 (corresponding to M in the circuit diagram of fig. 6) is in a low-speed state, then the fixed block 62 on the control rod 61 is moved out of the fixed hole 14, the control rod 61 automatically moves backwards under the thrust of the spring 63, and simultaneously drives the transmission shaft 43 to move rightwards, the lug 45 at the tail end of the transmission shaft 43 is contacted with the turntable 21 connected with the tail end of the motor 2, because the motor 2 drives the turntable 21 to rotate at a low speed, the low-speed rotation of the motor 2 is favorable for the engagement of the groove 211 and the lug 45, when the groove 211 rotates to be positioned at the same position as the lug 45, the groove 211 is engaged with the lug 45, and simultaneously the metal sheet 64 on the control rod 61 is contacted with the two conducting sheets installed on the sliding hole 13, the high-speed rotation circuit of the motor 2 is switched on (corresponding to K2 in the circuit diagram of fig. 6 is closed), the motor 2 drives the disc 4 to rotate rapidly, and simultaneously the fan blades 41 on the disc 4 rotate to suck the smoke from the smoking pipe 31 into the fan cover 3 and discharge the smoke from the smoke outlet tube 32 for measuring the smoke; after the measurement is finished, the control rod 61 is pushed forward, the fast rotation circuit is disconnected, the transmission shaft 43 is separated from the turntable 21, the fan blade 41 stops rotating, and the motor 2 rotates at a low speed; when carrying out the continuous emission measurement of flue gas like this, motor 2 can be in the starting condition always, can not reduce the fault incidence of motor 2 because of frequently cutting off motor 2, and motor 2 is in the starting condition always simultaneously, reduces because of the electric energy of start-up consumption, practices thrift the electric energy.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A continuous emission measuring device of flue gas, includes shell (1) by the back shell-extracted, its characterized in that: the fan blade support is characterized in that supports (12) are symmetrically arranged on two sides of the bottom of the outer cover (1), a motor (2) matched with the outer cover in size is installed in the outer cover (1), a fan cover (3) is installed on the front portion of the outer cover (1), a smoke absorbing pipe (31) is arranged on the front portion of the fan cover (3), rib plates (33) are arranged on an inner circular ring surface of the smoke absorbing pipe (31), a circular hole (34) is formed in the middle of each rib plate (33), a disc (4) is installed in the fan cover (3), a limiting column (42) matched with the circular hole (34) in size is arranged in the middle of the front portion of the disc (4), the limiting column (42) is rotatably connected with the circular hole (34), a plurality of fan blades (41) distributed in a circular array are arranged on the front end face of the disc (4), a transmission shaft (43) is arranged in the middle of the disc (4), a mounting groove (44) is formed in the transmission shaft (43), install bearing (5) of size looks adaptation on mounting groove (44), fixed mounting has spacing ring (6) of size looks adaptation on the outer ring surface of bearing (5), be provided with control lever (61) on spacing ring (6), one side of control lever (61) is provided with fixed block (62), be provided with spring (63) on the preceding terminal surface of control lever (61), be provided with sheetmetal (64) on the rear end face of control lever (61), correspond on dustcoat (1) control lever (61), slide opening (13), fixed orifices (14) have been seted up to the position of fixed block (62), the both ends of spring (63) are inlayed respectively in control lever (61) and on the preceding terminal surface of slide opening (13), the symmetry is installed two conducting strips (15) on the rear end face of slide opening (13), spacing hole (11) have been seted up to the front portion of dustcoat (1), spacing hole (11) with transmission shaft (43) size looks adaptation just is for rotating the connection, the end of transmission shaft (43) is provided with a plurality of and is lug (45) that circular array arranged, the terminal coaxial coupling of the output shaft of motor (2) has carousel (21), the end of carousel (21) be provided with lug (45) engaged with recess (211).

2. The continuous fume emission measuring device according to claim 1, wherein: a switch (16) is installed at the top of the outer cover (1), and the switch (16) is electrically connected with the motor (2).

3. The continuous fume emission measuring device according to claim 1, wherein: the fan housing (3) and the outer cover (1) are of an integrally formed structure.

4. The continuous fume emission measuring device according to claim 1, wherein: the outer cover (1) and the fan cover (3) are fixed through tight welding.

5. The continuous fume emission measuring device according to claim 1, wherein: the length of the limiting column (42) is greater than the distance between the disc (4) and the ribbed plate (33).

6. The continuous fume emission measuring device according to claim 1, wherein: the spring (63) is in a compressed state.

7. The continuous fume emission measuring device according to claim 1, wherein: the bearing (5) and the mounting groove (44), the bearing (5) and the limiting ring (6) are in interference fit.