CN218223897U

CN218223897U - Flow measuring device for pulverized coal pipe

Info

Publication number: CN218223897U
Application number: CN202222390666.5U
Authority: CN
Inventors: 刘龙凯; 李宏达; 刘鹏; 董鹏; 王开静; 丁光辉
Original assignee: Tiangong Zhihua Beijing Technology Co ltd; Huaneng Laiwu Power Generation Co Ltd; Huaneng Shandong Power Generation Co Ltd
Current assignee: Tiangong Zhihua Beijing Technology Co ltd; Huaneng Laiwu Power Generation Co Ltd; Huaneng Shandong Power Generation Co Ltd
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2023-01-06
Anticipated expiration: 2032-09-08

Abstract

The utility model belongs to the technical field of the buggy flow measurement, especially, be a flow measuring device for buggy pipe, include: the dredging device comprises a measuring mechanism and a dredging mechanism, wherein the dredging mechanism comprises a sliding pipe and a sliding block sliding on the inner wall of the sliding pipe, the sliding pipe is obliquely fixed on the measuring mechanism, a cleaning rod is fixed at the bottom end of the sliding block, a sealing plug is fixed at the bottom end of the inner wall of the sliding pipe, and a through hole is formed in the middle of the sealing plug; drive the slider along the inner wall up-and-down motion of slip pipe, the clearance pole synchronous slip of slider bottom, because the slip pipe is in the tilt state, the clearance pole is when sliding, can stretch into the survey intraduct, and remove to the junction through surveying buret and buggy pipe, through the reciprocal slip many times of clearance pole, realize clearing up the mediation to the buggy that the jam was surveying buret and buggy union coupling department, need not shut down and dismantle the clearance of surveying buret, improve the convenience of operation.

Description

Flow measuring device for pulverized coal pipe

Technical Field

The utility model relates to a buggy flow measurement technical field specifically is a flow measuring device for buggy pipe.

Background

When the pulverized coal flow that needs to survey the inside transport of pulverized coal pipe is measured, need install solid flow meter on the pulverized coal pipe, because survey the junction of buret and pulverized coal pipe and for the pipeline inner wall smooth inadequately, when adopting the gravity method to carry the pulverized coal through the pulverized coal pipe, because the pulverized coal does not have any power to carry, only flows through the action of gravity, if the too big emergence caking of pulverized coal humidity, take place to block up easily at the junction of surveying buret and pulverized coal pipe.

At present, when the junction of surveying buret and buggy pipe takes place the buggy and blocks up, need will survey buret and dismantle completely, then clear up again, after the clearance is accomplished, will survey buret again and install to the buggy and manage, the clearance process is consuming time longer, and complex operation. Accordingly, those skilled in the art have provided a flow measuring device for a pulverized coal pipe to solve the problems set forth in the above background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flow measuring device for buggy pipe to solve the problem that proposes among the above-mentioned background art.

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

a flow measuring device for a pulverized coal pipe, comprising:

the measuring mechanism is arranged on the pulverized coal pipe and is used for measuring the flow of pulverized coal;

the two dredging mechanisms are symmetrically arranged on the measuring mechanism and are positioned at two ends of the measuring mechanism connected with the pulverized coal pipe;

the dredging mechanism comprises a sliding pipe and a sliding block which slides on the inner wall of the sliding pipe, the sliding pipe is obliquely fixed on the measuring mechanism, a cleaning rod is fixed at the bottom end of the sliding block, a sealing plug is fixed at the bottom end of the inner wall of the sliding pipe, a through hole is formed in the middle of the sealing plug, the cleaning rod is inserted into the through hole in a sliding mode, a push-pull rod is detachably connected to the top end of the sliding block, and a through hole used for the push-pull rod to penetrate through is formed in the top end of the sliding pipe.

As a further aspect of the present invention: the measuring mechanism comprises a measuring pipe and a measuring sensor, wherein the measuring sensor is fixed on the side wall of the measuring pipe and used for measuring the flow of the pulverized coal inside the measuring pipe.

As a further aspect of the present invention: and both ends of the measuring pipe are fixed with connecting flanges for connecting with a pulverized coal pipe.

As a further aspect of the present invention: the inner diameter of the through hole is smaller than the diameter of the sliding block.

As the utility model discloses further scheme again: the outer wall of the sliding block is sleeved with a sealing sleeve, and the sliding block slides on the inner wall of the sliding pipe in a sealing mode through the sealing sleeve.

As the utility model discloses further scheme again: the push-pull rod comprises a connecting rod and a threaded rod coaxially fixed at the bottom end of the connecting rod, and the top end of the sliding block is provided with a threaded hole corresponding to the threaded rod.

As the utility model discloses further scheme again: and a pulling plate is coaxially fixed at the top end of the connecting rod.

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

if the buggy of surveying buret and buggy union coupling department of flowing through when blockking up because of the unsmooth emergence of junction formation, pass the push-and-pull rod through-hole and be connected with the slider, and drive the slider along the inner wall up-and-down motion of slip pipe, the clearance pole synchronous slip of slider bottom, because the slip pipe is in the tilt state, the clearance pole is when sliding, can stretch into inside the survey buret, and remove to the junction through surveying buret and buggy pipe, through the reciprocal slip of many times of clearance pole, realize clearing up the mediation at the buggy of surveying buret and buggy union coupling department of blockking up, do not need to shut down and dismantle the clearance of surveying buret, the convenience of operation is improved.

Drawings

FIG. 1 is a schematic view of a flow measuring device for a pulverized coal pipe;

FIG. 2 is a schematic view showing the structure of a dredging mechanism in a flow rate measuring device for a pulverized coal pipe;

FIG. 3 is a schematic view showing a state of connection of a slider and a cleaning rod in a flow rate measuring apparatus for a pulverized coal pipe;

fig. 4 is a schematic structural view of a push-pull rod in a flow rate measuring device for a pulverized coal pipe.

In the figure: 1. a measuring mechanism; 11. a measurement tube; 12. a measurement sensor; 13. a connecting flange; 2. a dredging mechanism; 201. a through hole; 21. a sliding tube; 22. a slider; 221. a threaded hole; 23. cleaning the rod; 24. a sealing plug; 241. perforating; 25. sealing sleeves; 3. a push-pull rod; 31. a connecting rod; 32. a threaded rod; 33. and (5) pulling the plate.

Detailed Description

Referring to fig. 1 to 4, in an embodiment of the present invention, a flow measuring device for a pulverized coal pipe includes:

the measuring mechanism 1 is arranged on the pulverized coal pipe and is used for measuring the flow of pulverized coal;

the two dredging mechanisms 2 are symmetrically arranged on the measuring mechanism 1 and are positioned at two ends of the measuring mechanism 1 connected with the pulverized coal pipe;

the dredging mechanism 2 comprises a sliding pipe 21 and a sliding block 22 sliding on the inner wall of the sliding pipe 21, the sliding pipe 21 is obliquely fixed on the measuring mechanism 1, a cleaning rod 23 is fixed at the bottom end of the sliding block 22, a sealing plug 24 is fixed at the bottom end of the inner wall of the sliding pipe 21, a through hole 241 is formed in the middle position of the sealing plug 24, the cleaning rod 23 is inserted into the through hole 241 in a sliding mode, the top end of the sliding block 22 is detachably connected with a push-pull rod 3, and a through hole 201 through which the push-pull rod 3 penetrates is formed in the top end of the sliding pipe 21.

In this embodiment, when in use, two ends of the measuring tube 11 are connected in series to the coal powder tube through the connecting flange 13, the coal powder flows through the measuring tube 11, the measuring sensor 12 measures the flow rate of the coal powder flowing inside the measuring tube 11 in real time, the sensor generates a microwave field in the tube, the microwave is reflected by particles flowing inside the tube, the change of the calculated frequency and amplitude can accurately measure the solid flow rate, and transmit signals to an external display terminal, if the coal powder flowing through the connection between the measuring tube 11 and the coal powder tube is blocked due to the unevenness formed at the connection, the push-pull rod 3 passes through the through hole 201 to be connected with the slider 22, and drives the slider 22 to reciprocate up and down along the inner wall of the sliding tube 21, the cleaning rod 23 at the bottom end of the slider 22 slides synchronously, because the sliding tube 21 is in an inclined state, the cleaning rod 23 can extend into the measuring tube 11 when sliding, and move to the connection between the measuring tube 11 and the coal powder tube (as shown in fig. 1), and slide a plurality of times through the cleaning rod 23, thereby achieving the cleaning of the coal powder blocked at the connection between the measuring tube 11 and the coal powder tube 11, and the sealing plug 241, and the sealing plug 23 is not required to be removed, and the sealing plug 23, and the sealing plug is removed, and the sealing plug 23 is lifted to the sealing plug 23, and the sealing plug 23 is still removed to avoid the leakage from the sealing plug 241.

In fig. 2: the internal diameter of through-hole 201 is less than the diameter of slider 22, and when not clearing up, slider 22 removes to the topmost of slide tube 21, because the internal diameter of through-hole 201 is less than the diameter of slider 22, slider 22 can outwards not roll off, and atmospheric pressure is outwards ejecting with slider 22 when avoiding buggy to pass through gas transport again.

In fig. 2 and 3: the outer wall cover of slider 22 is equipped with seal cover 25, and slider 22 passes through seal cover 25 and seals the inner wall at slip pipe 21, seals the slip of slider 22 through seal cover 25, further avoids the buggy to leak.

In fig. 4: the push-pull rod 3 comprises a connecting rod 31 and a threaded rod 32 coaxially fixed at the bottom end of the connecting rod, a threaded hole 221 corresponding to the threaded rod 32 is formed in the top end of the sliding block 22, the connecting rod 31 is in threaded connection with the threaded hole 221 in the sliding block 22 through the threaded rod 32, and therefore the connecting rod 31 and the sliding block 22 are connected, and the dismounting is convenient.

In fig. 4: the top of connecting rod 31 is fixed with the arm-tie 33 coaxially, and personnel push-and-pull when pushing and pulling connecting rod 31, push-and-pull through arm-tie 33 improves the convenience of operation.

The utility model discloses a theory of operation is: when the coal dust cleaning device is used, two ends of the measuring pipe 11 are connected in series on the coal dust pipe through the connecting flange 13, coal dust circulates in the measuring pipe 11, the measuring sensor 12 measures the flow rate of the coal dust flowing in the measuring pipe 11 in real time, and transmits signals to an external display terminal, if the coal dust flowing through the connecting part of the measuring pipe 11 and the coal dust pipe is blocked due to the concave-convex part formed by the connecting part, the push-pull rod 3 penetrates through the through hole 201 to be connected with the sliding block 22, and drives the sliding block 22 to reciprocate up and down along the inner wall of the sliding pipe 21, the cleaning rod 23 at the bottom end of the sliding block 22 slides synchronously, because the sliding pipe 21 is in an inclined state, the cleaning rod 23 can extend into the measuring pipe 11 when sliding, and can move to the connecting part between the measuring pipe 11 and the coal dust pipe (as shown in fig. 1), the coal dust can be cleaned and dredged through the multiple reciprocating sliding of the cleaning rod 23, the cleaning rod 11 does not need to be stopped to be cleaned, and the cleaning rod 241 slides along the perforation hole 24 all the time, leakage is avoided, the cleaning rod 22 and the sealing plug 23 is lifted to the sealing plug 23, and the sealing plug 23 is still to be cleaned, and the sealing plug is lifted to the sealing plug 23 to be cleaned.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A flow measuring device for a pulverized coal pipe, comprising:

the measuring mechanism (1) is arranged on the pulverized coal pipe and is used for measuring the flow of pulverized coal;

the two dredging mechanisms (2) are symmetrically arranged on the measuring mechanism (1) and are positioned at two ends of the measuring mechanism (1) connected with the pulverized coal pipe;

wherein, dredge mechanism (2) include sliding tube (21) and slide slider (22) at its inner wall, sliding tube (21) slope is fixed on measuring mechanism (1), the bottom mounting of slider (22) has clearance pole (23), the inner wall bottom mounting of sliding tube (21) has sealing plug (24), perforation (241) have been seted up to the intermediate position department of sealing plug (24), clearance pole (23) slide and peg graft in perforation (241), the top of slider (22) can be dismantled and be connected with push-and-pull rod (3), the top of sliding tube (21) is seted up and is used for through-hole (201) that push-and-pull rod (3) passed.

2. A flow measuring device for a coal dust pipe according to claim 1, characterized in that the measuring mechanism (1) comprises a measuring pipe (11) and a measuring sensor (12), the measuring sensor (12) being fixed to a side wall of the measuring pipe (11) and being adapted to measure the flow of coal dust inside the measuring pipe (11).

3. A flow measuring device for a pulverized coal pipe as claimed in claim 2, characterized in that both ends of the measuring pipe (11) are fixed with a connecting flange (13) for connection with the pulverized coal pipe.

4. A flow measuring device for pulverized coal pipes as claimed in claim 1, characterized in that the inner diameter of the through hole (201) is smaller than the diameter of the sliding block (22).

5. The flow measuring device for the pulverized coal pipe as claimed in claim 1, wherein a sealing sleeve (25) is sleeved on an outer wall of the sliding block (22), and the sliding block (22) is hermetically slid on an inner wall of the sliding pipe (21) through the sealing sleeve (25).

6. A flow measuring device for a pulverized coal pipe as defined in claim 1, wherein said push-pull rod (3) comprises a connecting rod (31) and a threaded rod (32) coaxially fixed at the bottom end thereof, and the top end of said slide block (22) is provided with a threaded hole (221) corresponding to said threaded rod (32).

7. A flow measuring device for a pulverized coal pipe as defined in claim 6, wherein a pulling plate (33) is coaxially fixed to a tip of said connecting rod (31).