CN208780282U - A kind of air measuring equipment - Google Patents

Abstract

The utility model relates to a kind of air measuring equipment, the positive side device including the differential pressure transmitter two sides that are placed in and negative lateral device；The positive side device is disposed with third balance pipe, cyclone cylinder, the first balance pipe and several positive pressure pipes from top to bottom；The cyclone cylinder upper end is connected to third balance pipe lower end, and the cyclone cylinder lower end is connected to first balance pipe upper surface, and first balance pipe lower end surface is connected to the positive pressure pipe upper end；The airintake direction of positive pressure pipe lower end towards the air-flow is provided with the first air inlet；The negative lateral device includes the second balance pipe and negative pressure pipe of upper and lower connection setting；The negative pressure pipe lower end is provided with the second air inlet with first air inlet back to setting；The positive pressure side of the differential pressure transmitter is connect with the third balance pipe, and the negative pressure end of the differential pressure transmitter is connect with second balance pipe.

Description

A kind of air measuring equipment

Technical field

The utility model relates to a kind of air measuring equipment, belong to wind pressure measurement technical field.

Background technique

In daily production and life, in order to guarantee the normal operation produced, the security needs of people's lives is ensured, are often required to A kind of device for measuring gas pressure is installed in boiler and outside of containers design.Antichoking blast pressure sampler is flowed according to gas Principle is made the impurity for being greater than air containing its specific gravity in air by stopping to impact, and fine particle sinks, the sky flowed upwards out Gas is purified, and avoids blocking pipeline.Obtained purification gas can be obtained correctly measurement by draft gauge, so that reaching anti-blocking The purpose of wind pressure sampling.In conventional apparatus for measuring air quantity total pressure mouth and static port insertion air-flow, the soot particle that is carried in air-flow by In hit with apparatus for measuring air quantity, with the effect of air-flow flowing and frictional static, be easy to be bonded in pressure tappings and each pressure tappings connect In threading a pipe, for a long time using blocking is easy, the Zhi Nengyong inside apparatus for measuring air quantity occurs apparatus for measuring air quantity for this blocking The method of compressed air timing purging is solved, and very big maintenance workload is brought to thermal technology's profession.Along with boiler start/ stop The variation of process cold and hot state, soot particle agglomerates in steam and apparatus for measuring air quantity in air-flow, is difficult to remove.

Utility model content

In order to overcome the above problem, the utility model provides a kind of air measuring equipment, which can be certainly Dynamic deashing, prevents from blocking, while structure is simple, and measurement accuracy is high.

The technical solution of the utility model is as follows:

A kind of air measuring equipment, positive side device and negative lateral device including the differential pressure transmitter two sides that are placed in；Institute It states positive side device and is disposed with third balance pipe, cyclone cylinder, the first balance pipe and several positive pressure pipes from top to bottom；Institute It states cyclone cylinder upper end to be connected to third balance pipe lower end, the cyclone cylinder lower end and first balance pipe upper surface connect Logical, first balance pipe lower end surface is connected to the positive pressure pipe upper end；Air inlet of the positive pressure pipe lower end towards air-flow Direction is provided with the first air inlet；The negative lateral device includes the second balance pipe and negative pressure pipe of upper and lower connection setting；Institute It states negative pressure pipe lower end and is provided with the second air inlet with first air inlet back to setting；The positive pressure of the differential pressure transmitter End is connect with the third balance pipe, and the negative pressure end of the differential pressure transmitter is connect with second balance pipe.

Further, the positive pressure pipe includes that the first vertical tube and upper end are sheathed on first vertical tube lower end outer One blast pipe；First vertical tube is vertically arranged, and the airintake direction of first blast pipe lower part towards air-flow is obliquely installed, institute It states the first air inlet and is set to the first air inlet pipe end.

Further, the positive pressure pipe further includes the wind direction adjustment structure towards the negative lateral device side setting； The wind direction adjustment structure includes the guide plate being vertically arranged, horizontally disposed gag lever post and is along the circumferential direction opened in described The arc-shaped slot of first blast pipe upper end side wall；The gag lever post is sheathed in the arc-shaped slot and one end is erected with described first Pipe outer wall is fixedly connected；The guide plate is fixedly connected with the first air inlet pipe outer wall；The corresponding center of circle of the arc-shaped slot Angle is 30 ° -90 °.

Further, the lower part of the junction of first blast pipe and the first vertical tube is fixedly connected with the first ash bucket.

Further, first ash bucket upper end is fixedly installed towards the acclivitous collision of the first vertical tube Plate, first ash bucket lower end is fixedly installed vertically leads hawk.

Further, the negative pressure pipe includes that the second vertical tube and upper end are sheathed on second vertical tube lower end outer Two blast pipes；Second vertical tube is vertically arranged, and second blast pipe lower part is directed away from the positive side device one and rolls Tiltedly setting, second air inlet are set to the second air inlet pipe end.

Further, the lower part of the junction of second blast pipe and the second vertical tube is fixedly connected with the second ash bucket.

Further, the angle between first balance pipe and horizontal plane is 60 °.

The utility model has the following beneficial effects:

1, the air measuring device structure is simple, practical, can be realized automatic ash removing, prevents from blocking.

2, it is provided with wind direction adjustment structure, guide plate can adjust the position of air inlet according to airflow direction, make air inlet It is aligned into the maximum direction of air inlet.

3, it is provided with ash bucket, it is more enough that preferably soot particle is collected.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the partial enlarged view at the A of Fig. 1；

Fig. 3 is the main view of Fig. 1；

Fig. 4 is the right view of Fig. 1；

Fig. 5 is the cross-sectional view of the first ash bucket.

Appended drawing reference indicates in figure are as follows:

1, positive side device；11, cyclone cylinder；12, the first balance pipe；13, positive pressure pipe；131, the first vertical tube；132, One blast pipe；14, the first air inlet；15, the first ash bucket；151, impingement plate；152, hawk is led；16, wind direction adjustment structure； 161, arc-shaped slot；162, gag lever post；163, guide plate；17, third balance pipe；2, negative lateral device；21, the second balance pipe； 22, negative pressure pipe；221, the second vertical tube；222, the second blast pipe；23, the second air inlet；24, the second ash bucket；3, differential pressure becomes Send device.

Specific embodiment

The utility model is described in detail in the following with reference to the drawings and specific embodiments.

Referring to Fig. 1-5, a kind of air measuring equipment, positive side device 1 including 3 two sides of differential pressure transmitter that are placed in and negative Lateral device 2；The positive side device 1 is disposed with third balance pipe 17, cyclone cylinder 11, the first balance pipe 12 from top to bottom And several positive pressure pipes 13；11 upper end of cyclone cylinder is connected to 17 lower end of third balance pipe, under the cyclone cylinder 11 End is connected to 12 upper surface of the first balance pipe, and 12 lower end surface of the first balance pipe and 13 upper end of positive pressure pipe connect It is logical；The airintake direction of positive pressure pipe 13 lower end towards the air-flow is provided with the first air inlet 14；The negative lateral device 2 includes The second balance pipe 21 and negative pressure pipe 22 of connection setting up and down；22 lower end of negative pressure pipe is provided with and first air inlet Second air inlet 23 of the mouth 14 back to setting；The positive pressure side of the differential pressure transmitter 3 is connect with the third balance pipe 17, described The negative pressure end of differential pressure transmitter 3 is connect with second balance pipe 21.

In above-described embodiment, differential pressure transmitter 3 is to calculate air quantity according to the positive pressure value of sampling and negative pressure value, to realize The measurement of air quantity.Since the first air inlet 14 is arranged towards air inlet direction, positive side device 1 is also the ground of dust stratification most serious Side.When soot particle with air-flow by positive pressure pipe 13 enter the first balance pipe 12, then by the first balance pipe 12 enter cyclone cylinder 11, gas Stream flows through cyclone cylinder 11 and generates rotary centrifugal force, soot particle that can to a certain extent in separation bubble, and soot particle is in self gravity Effect is lower to fall into the first balance pipe 12 again again, realize automatic ash removing, solve air-flow and carry soot particle blocking air measuring dress The problem of setting.In addition, air-flow can generate certain flow perturbation, positive pressure pipe 13 is with air-flow when entering positive pressure pipe 13 Impact and balance pipe in flow perturbation and generate vibration, the first balance pipe of part 12 and positive pressure pipe 13 can be removed automatically Interior dust stratification.

Further, the positive pressure pipe 13 includes that the first vertical tube 131 and upper end are sheathed on 131 lower end of the first vertical tube First blast pipe 132 of outer；First vertical tube 131 is vertically arranged, 132 lower part of the first blast pipe towards air-flow into Gas direction is obliquely installed, and first air inlet 14 is set to 132 end of the first blast pipe.It is first that positive pressure pipe 13, which is divided, Vertical tube 131 and the first blast pipe 132, first is that can be convenient for loading and unloading, second is that being capable of easy cleaning.

Further, the positive pressure pipe 13 further includes the wind direction adjusting knot towards negative 2 side of the lateral device setting Structure 16；The wind direction adjustment structure 16 includes the guide plate 163 being vertically arranged, horizontally disposed gag lever post 162 and circumferentially Direction is opened in the arc-shaped slot 161 of the 132 upper end side wall of the first blast pipe；The gag lever post 162 is sheathed on the arc In card slot 161 and one end is fixedly connected with 131 outer wall of the first vertical tube；The guide plate 163 and first blast pipe 132 Outer wall is fixedly connected；The corresponding central angle of the arc-shaped slot 161 is 30 ° -90 °.

In above-described embodiment, be provided with wind direction adjustment structure 16, by guide plate 163 come according to airflow direction to first into 14 direction of air port is adjusted, and makes the first air inlet 14 face air-flow maximum direction always, to improve the accuracy of measurement.

Further, the lower part of the junction of first blast pipe 132 and the first vertical tube 131 is fixedly connected with the first product Ash bucket 15.The first ash bucket 15 is arranged to be to be able to allow most of dust stratification fallen out of positive pressure pipe 13 directly by lower end The discharge of first ash bucket 15, does not enter back into the first blast pipe 132.

Further, 15 upper end of the first ash bucket is fixedly installed acclivitous towards first vertical tube 131 Impingement plate 151,15 lower end of the first ash bucket is fixedly installed vertically leads hawk 152.Air-flow by the first blast pipe 132 into Enter, impact impingement plate 151 in 15 upper end of the first ash bucket, impingement plate 151 touches the soot particle in air-flow, then soot particle along Impingement plate 151 drops down onto the outlet of 15 lower end of the first ash bucket with hawk 152 is led.

Further, the negative pressure pipe 22 includes that the second vertical tube 221 and upper end are sheathed on 221 lower end of the second vertical tube Second blast pipe 222 of outer；Second vertical tube 221 is vertically arranged, and 222 lower part of the second blast pipe is directed away from described 1 side of positive side device is obliquely installed, and second air inlet 23 is set to 222 end of the second blast pipe.

Further, the lower part of the junction of second blast pipe 222 and the second vertical tube 221 is fixedly connected with the second product Ash bucket 24.

Further, the angle between first balance pipe 12 and horizontal plane is 60 °.

Originally it is the working principle of utility model:

Firstly, the air measuring equipment is mounted on boiler internal, and by the first air inlet 14 towards the air inlet side of air-flow To setting, the second air inlet 23 is arranged towards leeward direction；Then, air-flow blows to air measuring equipment；Then, wind direction adjusts knot The guide plate 163 of structure 16 adjusts the position of the first blast pipe 132, enables the first air inlet 14 according to the airintake direction of air-flow It is constantly being directed towards air-flow maximum direction；Finally, what differential pressure transmitter 3 was collected into according to third balance pipe 17 and the second balance pipe 21 Air-flow wind pressure calculates air quantity.

Wherein, arrow direction indicates the airintake direction of air-flow.

The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in Other related technical areas are also included in the patent protection scope of the utility model.

Claims (8)

1. a kind of air measuring equipment, it is characterised in that: the positive side device (1) including the differential pressure transmitter that is placed in (3) two sides With negative lateral device (2)；The positive side device (1) be disposed with from top to bottom third balance pipe (17), cyclone cylinder (11), First balance pipe (12) and several positive pressure pipes (13)；Cyclone cylinder (11) upper end and third balance pipe (17) lower end Connection, cyclone cylinder (11) lower end are connected to the first balance pipe (12) upper surface, the first balance pipe (12) lower end Face is connected to the positive pressure pipe (13) upper end；The airintake direction of positive pressure pipe (13) lower end towards the air-flow is provided with first Air inlet (14)；The negative lateral device (2) includes the second balance pipe (21) and negative pressure pipe (22) of upper and lower connection setting；Institute It states negative pressure pipe (22) lower end and is provided with the second air inlet (23) with first air inlet (14) back to setting；The differential pressure The positive pressure side of transmitter (3) is connect with the third balance pipe (17), the negative pressure end and described second of the differential pressure transmitter (3) Balance pipe (21) connection.

2. air measuring equipment according to claim 1, it is characterised in that: the positive pressure pipe (13) includes the first vertical tube (131) and upper end is sheathed on the first blast pipe (132) of the first vertical tube (131) lower end outer；First vertical tube (131) It is vertically arranged, the airintake direction of the first blast pipe (132) lower part towards the air-flow is obliquely installed, first air inlet (14) Set on the first blast pipe (132) end.

3. air measuring equipment according to claim 2, it is characterised in that: the positive pressure pipe (13) further includes described in The wind direction adjustment structure (16) of negative lateral device (2) side setting；The wind direction adjustment structure (16) includes leading of being vertically arranged To plate (163), horizontally disposed gag lever post (162) and along the circumferential direction it is opened in the first blast pipe (132) upper end side The arc-shaped slot (161) of wall；The gag lever post (162) is sheathed in the arc-shaped slot (161) and one end is erected with described first Pipe (131) outer wall is fixedly connected；The guide plate (163) is fixedly connected with the first blast pipe (132) outer wall；The arc The corresponding central angle of card slot (161) is 30 ° -90 °.

4. air measuring equipment according to claim 2, it is characterised in that: first blast pipe (132) and the first vertical tube (131) lower part of junction is fixedly connected with the first ash bucket (15).

5. air measuring equipment according to claim 4, it is characterised in that: the first ash bucket (15) upper end fixed setting Have towards the acclivitous impingement plate of first vertical tube (131) (151), fixation is set vertically for the first ash bucket (15) lower end It is equipped with and leads hawk (152).

6. air measuring equipment according to claim 2, it is characterised in that: the negative pressure pipe (22) includes the second vertical tube (221) and upper end is sheathed on the second blast pipe (222) of the second vertical tube (221) lower end outer；Second vertical tube (221) It being vertically arranged, the second blast pipe (222) lower part is directed away from positive side device (1) side and is obliquely installed, and described Two air inlets (23) are set to the second blast pipe (222) end.

7. air measuring equipment according to claim 6, it is characterised in that: second blast pipe (222) and the second vertical tube (221) lower part of junction is fixedly connected with the second ash bucket (24).

8. air measuring equipment according to claim 1, it is characterised in that: between first balance pipe (12) and horizontal plane Angle be 60 °.