CN2690876Y - Automatic test system for boiler cold state test - Google Patents
Automatic test system for boiler cold state test Download PDFInfo
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- CN2690876Y CN2690876Y CNU2004200243607U CN200420024360U CN2690876Y CN 2690876 Y CN2690876 Y CN 2690876Y CN U2004200243607 U CNU2004200243607 U CN U2004200243607U CN 200420024360 U CN200420024360 U CN 200420024360U CN 2690876 Y CN2690876 Y CN 2690876Y
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- differential pressure
- wireless transceiver
- master control
- test system
- test
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Abstract
The utility model discloses an automatic test system for a boiler cold state test, comprising differential pressure measurement devices, differential pressure wireless transceivers connected with the differential pressure measurement devices by pipelines, and a main control processing device which is in data transmission with the differential pressure wireless transceivers via wireless communication. Each differential pressure measurement device is connected with one differential pressure wireless transceiver. The utility model has the advantages of easy installation, accurate data, fast measuring speed and non manual measuring.
Description
Technical field
The utility model belongs to the device of the cold test of coal dust fuel boiler.
Background technology
Cold test is the important pilot project of station boiler, can recognize the control characteristic of the relevant air door that influences boiler combustion by it, can and record the power situation of gas stream in the stove with the leveling of burner outlet wind speed according to the air door family curve, for the heat state combustion adjustment provides reference frame, therefore, carrying out cold test is very helpful to boiler safety, economical operation.
The DC burner coner firing is the most important combustion system of China's station boiler, this type of boiler carries out the conventional test methodologies of cold test, be outside stove airduct and burner in the stove exit by testing crew handheld test instrument one by one spout carry out measuring wind speed, this method exists following shortcoming:
A. poor working environment
Big, dust from flying of noise and summer extremely hot (can reach more than 60 ℃) in the stove, winter cold, that gives testing crew has healthyly caused very big harm.
B. labour intensity is big
Testing crew climbs up the ladder in rugged environment, and in the air in the face of the wind speed of 30～50m/s carries out measuring wind speed, not only labour intensity is big, but also dangerous at height.
C. test length consuming time
Boiler burner spout quantity is a lot, each operating mode needs with manually each spout being carried out multimetering, for obtaining complete air door family curve, must carry out the measurement of multi-state, therefore consuming time longer, be warranty test quality and testing crew safety, in process of the test, need to do suitably to have a rest, not only increased test period, the blower fan power consumption is increased.
D. test accuracy is low
Hand-held instrument is measured facing to the wind speed of tens meters of per seconds, and arm rocks and can't avoid, and can't guarantee also that naturally instrument stabilizer and angle are correct, and test accuracy is subjected to very big influence.
Summary of the invention
The purpose of this utility model provides a kind of wind speed automatic measurement system device that is applied to the boiler cold-state test, so that the outlet wind speed of each spout of fast measuring burner, obtain the air door family curve of each spout and each spout air-out velocity modulation is flat, for the heat state combustion adjustment is offered help.
Another purpose of the present utility model provides a kind of probe that is applicable to boiler cold-state Auto-Test System measuring wind speed.
The wireless transmitter that also has a purpose to provide a kind of boiler cold-state Auto-Test System of the present utility model comprises differential pressure wireless transceiver and master control wireless transceiver.
The technical solution of the utility model is as follows: differential pressure wireless transceiver, master control treating apparatus that boiler cold-state test Auto-Test System comprises differential pressure measuring installation, is connected with pipeline with differential pressure measuring installation; Differential pressure measuring installation is made up of probe, pressure transmission pipeline, multiple-pass joint; Supporting adn fixing device has a support bar, and several horizontal guide rods are arranged on support bar; Probe is latticed and is installed on the guide rod respectively; The differential pressure wireless transceiver is contained on the support bar.Described measuring sonde is the modified Pitot tube, at the head of pipe one total head pressure sensing hole is arranged, and has static pressure sensing hole around one week of pipe shaft on pipe shaft, at the rear portion of pipe sliding sleeve is arranged, and its afterbody is " Y " shape, and 2 withstand voltage quick couplings are housed.The differential pressure wireless transceiver is made up of differential pressure transmitter, A/D converter, microprocessor, wireless transceiver and battery, power module, differential pressure signal is through the differential pressure transmitter signal conversion voltage, and voltage signal converts the digital quantity input microprocessor to through A/D converter and handles; Data after the processing send to the master control wireless transceiver by wireless transceiver; Power management module is reverse into the power supply of different electric pressures respectively to differential pressure pick-up, A/D converter, microprocessor, wireless transceiver power supply with battery power.The master control treating apparatus comprises master control wireless transceiver, communication interface, computing machine, the master control wireless transceiver can receiving computer order, be transmitted to the differential pressure wireless transceiver with wireless communication mode, can also receive the data of uploading of differential pressure wireless transceiver on the other hand with wireless communication mode, send computing machine to through communication interface again.
Good effect of the present utility model is: this Auto-Test System has simple installation, measure layout rationally, data transmission is smooth and easy, job stability is high, data processing is quick, testing crew need not to enter and advantage such as measures in the stove, make the cold test time shorten to about 1/10th of manual measurement, and fundamentally improved the working environment of testing crew, greatly reduced labour intensity.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the Auto-Test System synoptic diagram;
Fig. 2 is the measuring sonde structural representation;
Fig. 3 is supporting adn fixing device and equipment scheme of installation;
Fig. 4 is that the probe gridding method is arranged and connection diagram;
Fig. 5 is a differential pressure wireless transceiver functional-block diagram.
Among the figure, 1. pop one's head in, 2. differential pressure measuring installation, 3. differential pressure wireless transceiver, 4. master control treating apparatus, 5. total head pressure sensing hole, 6. static pressure sensing hole, 7. sliding sleeve, 8. top wire hole, 9. rapid-acting coupling, 10. static pressure delivery outlet, 11. total head delivery outlets, 12. pipe clamps, 13. guide rod, 14. support bars, 15. sliding sleeves, 16. burner nozzle, 17. multiple-pass joints, 18. pressure transmission pipelines.
Embodiment
With reference to Fig. 1, the differential pressure measuring installation (2) that Auto-Test System is made up of measuring sonde (1), connecting line and multiple-pass joint, differential pressure wireless transceiver (3), master control treating apparatus (4) are formed whole test system.
With reference to Fig. 4, differential pressure measuring installation comprises: measuring wind speed probe (1), pressure transmission pipeline (18), multiple-pass joint (17).
With reference to Fig. 2 and Fig. 3, the measuring wind speed probe is a principle of work of being measured hydrodynamic by Pitot tube, structure needs according to self-operated measuring unit in the stove design, 4 probes of the general use of each spout, the head of every probe has total head pressure sensing hole (5), the geometry that the side periphery has static pressure sensing hole (6), probe meets the requirement of national technical test rules JJG518-98 (Pitot tube), the probe afterbody is equipped with two withstand voltage rapid-acting couplings (9), and total head and static pressure that probe records are exported.The sliding sleeve (7) at probe rear portion can make probe move axially and rotate along the guide rod axle center along guide rod (13), with satisfy different burner nozzles to probe spacing from requirement, and making probe total head pressure sensing hole (5) face airflow direction by angular adjustment, sliding sleeve (7) is fixing by jackscrew (8) and guide rod (13).The centre of guide rod is provided with sliding sleeve (15), and the connection between sliding sleeve (15) and support bar (14) is identical with the connection between probe sliding sleeve (7) and the guide rod.All probes of whole Auto-Test System and differential pressure wireless transceiver (3) all are fixed on the support bar (14), support bar two is pipe clamp (12), pipe clamp is fixed on support bar on the burner spout by jackscrew, being connected as Fig. 4 between probe (1), guide rod (13), differential pressure wireless transceiver (3), support bar (14) and the burner nozzle (6).With reference to Fig. 5, the requirement of layouting that probe positions is measured according to gridding method is arranged, the total head and the rapid-acting coupling on the static pressure efferent duct of probe afterbody are connected to corresponding multiple-pass joint (17) with pipeline, two multiple-pass joints are drawn a pressure tube respectively, and the differential pressure (dynamic pressure) after average is introduced differential pressure wireless transceiver (3).
The differential pressure wireless transceiver converts the differential pressure signal of multiple-pass joint input to the voltage signal of proportional relation with it by the difference transmitter, converts the digital quantity corresponding with differential pressure signal, input microprocessor to through A/D converter again.The electric battery dry cell is formed, and is reverse into the power supply of different electric pressures through power management module, supplies with differential pressure transmitter, A/D converter, microprocessor and wireless transceiver respectively.A/D converter is accepted the control of microprocessor, and regularly converting analog signals to digital quantity signal gives microprocessor; Wireless transceiver receives the order that the master control wireless transceiver is sent with wireless mode on the one hand, send microprocessor to, the data that microprocessor processes is crossed send to the master control wireless transceiver with wireless mode on the other hand, this device is subjected to the control of microprocessor, have dormancy and automatic arousal function, system can reduce its average power consumption greatly like this, for can long-term stable operation create advantage.
Microprocessor is the core component in the differential pressure wireless transceiver, except that control A/D converter, power management module and wireless transceiver, also has data processing, differentiates the functions such as order, transmission data and fault diagnosis that the master control wireless transceiver sends.The cycle of microprocessor acquired signal is t, and inside is provided with n data memory, and store data adopts the principle of first in first out, has so just guaranteed that the data in the data memory are always the last n * data of t in second.Microprocessor adopts and removes m maximal value when deal with data, removes m minimum value, (n-2m) individual value of being left is carried out arithmetic mean, in conjunction with first-in first-out, has so just realized Real-Time Filtering, both guarantee the real-time of data, improved antijamming capability again.
Each differential pressure wireless transceiver has independently address, the master control treating apparatus sends in the mode of broadcasting and uploads data command, contain address information in this order, all differential pressure wireless transceivers are all received this order, each differential pressure wireless transceiver is identical with oneself whether of the address in the sense command at first, if the address is identical, then data processed is issued the master control wireless transceiver by wireless transceiver, otherwise ignore this order.
The shell of each differential pressure wireless transceiver is provided with 1 pilot lamp, and after successfully receiving order at every turn and sending data, pilot lamp is once glittering.
With reference to Fig. 1, the master control treating apparatus comprises computing machine, communication interface, master control wireless transceiver.
The master control wireless transceiver adopts the technology similar to the differential pressure wireless transceiver, and is provided with communication interface, can accept the order of computer on the one hand, is transmitted to the differential pressure wireless transceiver with wireless mode; Can also send the data of uploading of the differential pressure wireless transceiver that receives to computing machine with wireless communication mode on the other hand, carry out data processing and export measurement result by computing machine.
Using method is: this boiler cold-state test method is the differential pressure signal that the place, measuring position that the status requirement that many measuring wind speeds probe is measured according to gridding method is fixed on the burning outlet is recorded each point, send connecting line with the multiple spot differential pressure signal average after, convert pressure signal to electric signal through differential pressure transmitter; By A/D conversion analog quantity is converted to that digital quantity sends into that microprocessor is handled again and will handle with wireless communication mode after data send to receiver and import computing machine, by computing machine measurement result is handled, stores, exported to the data that collect.
Claims (4)
1, a kind of boiler cold-state test Auto-Test System, it is characterized in that differential pressure wireless transceiver that it comprises differential pressure measuring installation, is connected with pipeline with differential pressure measuring installation, and the differential pressure wireless transceiver carry out the master control treating apparatus of data transmission by wireless communication mode; Each differential pressure measuring installation links to each other with a differential pressure wireless transceiver; Differential pressure measuring installation is made up of measuring sonde (1), pressure transmission pipeline (18), multiple-pass joint (17); Supporting adn fixing device is made up of support bar (14), pipe clamp (12) and horizontal guide rod (13); Probe (1) is latticed and is installed in respectively on the guide rod (13); The differential pressure wireless transceiver is installed on the support bar (14).
2, boiler cold-state test Auto-Test System according to claim 1, it is characterized in that described measuring sonde is a modified Pitot tube, head at pipe has a total head pressure sensing hole (5), on pipe shaft, have static pressure sensing hole (6) around one week of pipe shaft, sliding sleeve (7) is arranged at the rear portion of pipe, its afterbody is " Y " shape, and 2 withstand voltage quick couplings (9) are housed.
3, boiler cold-state test Auto-Test System according to claim 1, it is characterized in that the differential pressure wireless transceiver is made up of differential pressure transmitter, A/D converter, microprocessor, wireless transceiver and battery, power module, differential pressure signal converts voltage signal to through differential pressure transmitter, and voltage signal converts the digital quantity input microprocessor to through A/D converter and handles; Data after the processing send to the master control wireless transceiver by wireless transceiver; Power management module is reverse into the different power supply of electric pressure respectively to differential pressure pick-up, A/D converter, microprocessor, wireless transceiver power supply with battery power.
4, boiler cold-state test Auto-Test System according to claim 1, it is characterized in that the master control treating apparatus comprises master control wireless transceiver, communication interface, computing machine, the master control wireless transceiver can receiving computer order, be transmitted to the differential pressure wireless transceiver with wireless communication mode, can also receive the data of uploading of differential pressure wireless transceiver on the other hand with wireless communication mode, send computing machine to by communication interface again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200243607U CN2690876Y (en) | 2004-01-15 | 2004-01-15 | Automatic test system for boiler cold state test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200243607U CN2690876Y (en) | 2004-01-15 | 2004-01-15 | Automatic test system for boiler cold state test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2690876Y true CN2690876Y (en) | 2005-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200243607U Expired - Fee Related CN2690876Y (en) | 2004-01-15 | 2004-01-15 | Automatic test system for boiler cold state test |
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| Country | Link |
|---|---|
| CN (1) | CN2690876Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100498341C (en) * | 2004-01-15 | 2009-06-10 | 徐州发电厂 | Automatic test system for cold test of boiler and test method thereof |
| CN103389217A (en) * | 2012-05-08 | 2013-11-13 | 宝山钢铁股份有限公司 | Power station boiler air door driver detecting method and torque detecting device |
| CN105021223A (en) * | 2014-05-02 | 2015-11-04 | 气体产品与化学公司 | Remote burner monitoring system and method |
-
2004
- 2004-01-15 CN CNU2004200243607U patent/CN2690876Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100498341C (en) * | 2004-01-15 | 2009-06-10 | 徐州发电厂 | Automatic test system for cold test of boiler and test method thereof |
| CN103389217A (en) * | 2012-05-08 | 2013-11-13 | 宝山钢铁股份有限公司 | Power station boiler air door driver detecting method and torque detecting device |
| CN103389217B (en) * | 2012-05-08 | 2016-01-27 | 宝山钢铁股份有限公司 | Power station boiler air door driver torque detecting apparatus |
| CN105021223A (en) * | 2014-05-02 | 2015-11-04 | 气体产品与化学公司 | Remote burner monitoring system and method |
| CN105021223B (en) * | 2014-05-02 | 2018-09-18 | 气体产品与化学公司 | Long-range burner monitors system and method |
| US10508807B2 (en) | 2014-05-02 | 2019-12-17 | Air Products And Chemicals, Inc. | Remote burner monitoring system and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |