CN201765248U - Block-prevention portable wind speed measuring instrument - Google Patents

Block-prevention portable wind speed measuring instrument Download PDF

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Publication number
CN201765248U
CN201765248U CN2010205162264U CN201020516226U CN201765248U CN 201765248 U CN201765248 U CN 201765248U CN 2010205162264 U CN2010205162264 U CN 2010205162264U CN 201020516226 U CN201020516226 U CN 201020516226U CN 201765248 U CN201765248 U CN 201765248U
Authority
CN
China
Prior art keywords
air
pitot tube
tracheae
logical operation
operation valves
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2010205162264U
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Chinese (zh)
Inventor
梅义忠
刘晓晨
杨正波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Dade Technology Co Ltd
Original Assignee
Nanjing Dade Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Dade Technology Co Ltd filed Critical Nanjing Dade Technology Co Ltd
Priority to CN2010205162264U priority Critical patent/CN201765248U/en
Application granted granted Critical
Publication of CN201765248U publication Critical patent/CN201765248U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a block-prevention portable wind speed measuring instrument, which comprises an S-shaped Pitot tube; the tail of the S-shaped Pitot tube is located in a control box; a seal protection pipe is disposed between the pressure measuring hole of the S-shaped Pitot tube and the control box while outside the S-shaped Pitot tube; the seal protection pipe is in fixed connection with the control box; two pressure guiding pipes on the tail of the S-shaped Pitot tube are respectively connected with a No.1 air filter and a No.2 air filter; a two-state six-way control valve is also disposed in the control box; a switching wrench is disposed on the two-state six-way control valve; two differential pressure input interfaces of the No.1 air filter, the No.2 air filter and a wind speed gauge, and two air outlets of a three-way connection are respectively connected with the ports of the two-state six-way control valve; the air inlet of the three-way connection is connected with external compressed air. The instrument can meet the requirement for measuring the wind speed of clean air or dust-loaded air; achieves the advantages of simple structure and convenient operation.

Description

A kind of anti-blocking portable measuring wind speed instrument
Technical field
The utility model relates to a kind of anti-blocking portable measuring wind speed instrument, is particularly useful for the measuring wind speed to dust laden air.
Background technology
Measuring wind speed instrument commonly used generally all can only be measured the air velocity of cleaning, because the element of measuring wind generally all is to come perception flow air pressure by pressure tap, and transfer the pressure to by pressure tube on the load cell of rear end, therefore in case contain dust in the tested air, be easy to pressure tap or pressure transmission line are stopped up, thereby make the accuracy that influences measurement data.
And a lot of occasions need be carried out the measurement of flow velocity to dust laden air in the industrial process, thereby instruct industrial safety and economic operation, therefore need a kind of measuring instrument that can measure the dust laden air flow velocity.
Summary of the invention
Goal of the invention: the purpose of this utility model is to overcome the defective of prior art, and a kind of anti-blocking portable measuring wind speed instrument is provided, and can solve the measuring wind speed blockage problem of dust laden air.
Technical scheme: in order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
A kind of anti-blocking portable measuring wind speed instrument comprises S type Pitot tube, and S type Pitot tube afterbody is in to be controlled in the box, at the pressure tap of S type Pitot tube and control outside the S type Pitot tube between the box and be provided with the sealing protection pipe, the sealing protection pipe with control box and be fixed together; Two pressure guiding pipes of S type Pitot tube afterbody are connected with an air strainer, No. two air strainers respectively; Also be provided with two six logical operation valves in controlling box, two six logical operation valves are provided with the switching spanner; An air strainer, No. two air strainers are connected with two six logical two ports of operation valve by tracheae respectively; Two other port of two six logical operation valves is connected with two differential pressure input interfaces of anemometer by tracheae respectively; Two six logical all the other two ports of operation valve are connected with two gas outlets of three-way connection by tracheae respectively; The air intake opening of three-way connection connects the external compression air.
Wherein, a described air strainer is connected to by tracheae on the K4 port of two six logical operation valves, and No. two air strainer is connected on the K1 port of two six logical operation valves by tracheae; The K5 port of two six logical operation valves is connected on the differential pressure input interface of anemometer by tracheae; The K6 port of two six logical operation valves is connected on another differential pressure input interface of anemometer by tracheae; The K2 port of two six logical operation valves is connected on one of them gas outlet of three-way connection by tracheae; The K3 port of two six logical operation valves is connected to another gas outlet of three-way connection by tracheae.
Beneficial effect: the utility model has solved in the past S type Pitot tube can only measure the pure air wind speed, and the problem that can not measure dust laden air, and simple in structure, easy to operate.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that two six logical operation valves are in the synoptic diagram of measuring station.
Fig. 3 is that two six logical operation valves are in the synoptic diagram that purges station.
Embodiment:
Below in conjunction with accompanying drawing the utility model is done further explanation.
Shown in Fig. 1,2 and 3, a kind of anti-blocking portable measuring wind speed instrument of the present utility model, comprise S type Pitot tube 1, S type Pitot tube 1 afterbody is in to be controlled in the box 2, at the pressure tap of S type Pitot tube 1 and control outside the S type Pitot tube 1 between the box 2 and be provided with sealing protection pipe 3, sealing protection pipe 3 with control box 2 and be fixed together.Two pressure guiding pipes of S type Pitot tube 1 afterbody are connected with air strainer 4, No. two air strainers 5 respectively; Air strainer 4, No. two air strainers 5 connect can prevent that the dust in the tested air-flow from entering in the anemometer 8.
In controlling box 2, also be provided with 6, two six logical operation valves 6 of two six logical operation valves and be provided with switching spanner 7.Can realize measuring the switching that path is swept in path and blowback by switching spanner 7, thus since can be to pipeline blowback assurance S type Pitot tube 1 pressure tap unobstructed.No. one air strainer 4 is connected to by tracheae on the K4 port of two six logical operation valves 6, and No. two air strainer 5 is connected on the K1 port of two six logical operation valves 6 by tracheae; The K5 port of two six logical operation valves 6 is connected on the differential pressure input interface of anemometer 8 by tracheae; The K6 port of two six logical operation valves 6 is connected on another differential pressure input interface of anemometer 8 by tracheae; The K2 port of two six logical operation valves 6 is connected on one of them gas outlet of three-way connection 9 by tracheae; The K3 port of two six logical operation valves 6 is connected to another gas outlet of three-way connection 9 by tracheae.The air intake opening of three-way connection 9 connects the external compression air.
When measurement contains the gas flow rate of dust, on the air intake opening of three-way connection 9, feed the pressurized air of dried and clean, one end of S type Pitot tube 1 is stretched in the measuring channel, have on the S type Pitot tube 1 a pair of back to pressure tap, make one of them pressure tap over against airflow direction, rotate the switching spanner 7 of two six logical operation valves 6, then spool 10 rotations, two six logical operation valves 6 are adjusted to the measurement station, as shown in Figure 2, pressure in two pressure taps of S type Pitot tube 1 can directly arrive anemometer 8 by tracheae, thereby can measuring wind.
If in measuring process, two six logical operation valves 6 are adjusted to the blowback station, as shown in Figure 3, the pressure measurement path of the pressure measurement pipeline of anemometer 8 and S type Pitot tube 1 is blocked, and the air intake opening of pressurized air by three-way connection 9 enters S type Pitot tube 1 by an air strainer 4 and No. two air strainers 5 respectively, thereby can effectively remove dust on air strainer 4, No. two air strainers 5 and the dust in the S type Pitot tube 1.Outside pressurized air not be owing to can enter anemometer 8 in the station handoff procedure, so anemometer 8 can not be subjected to impacting with high pressure and damages.Forward two six logical operation valves 6 to the measurement station again after blowback finishes, at this moment since the dust in the S type Pitot tube 1 be eliminated totally, so accurate measuring wind again.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (2)

1. anti-blocking portable measuring wind speed instrument, it is characterized in that: comprise S type Pitot tube (1), S type Pitot tube (1) afterbody is in to be controlled in the box (2), at the pressure tap of S type Pitot tube (1) and control outside the S type Pitot tube (1) between the box (2) and be provided with sealing protection pipe (3), sealing protection pipe (3) with control box (2) and be fixed together; Two pressure guiding pipes of S type Pitot tube (1) afterbody are connected with an air strainer (4), No. two air strainers (5) respectively; Also be provided with two six logical operation valves (6) in controlling box (2), two six logical operation valves (6) are provided with and switch spanner (7); An air strainer (4), No. two air strainers (5) are connected with two six logical (6) two ports of operation valve by tracheae respectively; Two other port of two six logical operation valves (6) is connected with two differential pressure input interfaces of anemometer (8) by tracheae respectively; Two six logical all the other two ports of operation valve (6) are connected with two gas outlets of three-way connection (9) by tracheae respectively; The air intake opening of three-way connection (9) connects the external compression air.
2. a kind of anti-blocking portable measuring wind speed instrument according to claim 1, it is characterized in that: a described air strainer (4) is connected to by tracheae on the K4 port of two six logical operation valves (6), and No. two air strainers (5) are connected on the K1 port of two six logical operation valves (6) by tracheae; The K5 port of two six logical operation valves (6) is connected on the differential pressure input interface of anemometer (8) by tracheae; The K6 port of two six logical operation valves (6) is connected on another differential pressure input interface of anemometer (8) by tracheae; The K2 port of two six logical operation valves (6) is connected on one of them gas outlet of three-way connection (9) by tracheae; The K3 port of two six logical operation valves (6) is connected to another gas outlet of three-way connection (9) by tracheae.
CN2010205162264U 2010-09-02 2010-09-02 Block-prevention portable wind speed measuring instrument Expired - Fee Related CN201765248U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205162264U CN201765248U (en) 2010-09-02 2010-09-02 Block-prevention portable wind speed measuring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205162264U CN201765248U (en) 2010-09-02 2010-09-02 Block-prevention portable wind speed measuring instrument

Publications (1)

Publication Number Publication Date
CN201765248U true CN201765248U (en) 2011-03-16

Family

ID=43717856

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205162264U Expired - Fee Related CN201765248U (en) 2010-09-02 2010-09-02 Block-prevention portable wind speed measuring instrument

Country Status (1)

Country Link
CN (1) CN201765248U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2527844A1 (en) * 2011-05-23 2012-11-28 BAE Systems Plc Air data sensor with cleaning means for pneumatic lines
WO2012160349A1 (en) * 2011-05-23 2012-11-29 Bae Systems Plc Air data sensor with cleaning means for pneumatic lines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2527844A1 (en) * 2011-05-23 2012-11-28 BAE Systems Plc Air data sensor with cleaning means for pneumatic lines
WO2012160349A1 (en) * 2011-05-23 2012-11-29 Bae Systems Plc Air data sensor with cleaning means for pneumatic lines
US9239336B2 (en) 2011-05-23 2016-01-19 Bae Systems Plc Method and apparatus for clearing a blockage in a pitot or static pressure line of a duct of a pressure sensor

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Legal Events

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110316

Termination date: 20130902