CN101876593A - Equipment for testing liquidity of pulse valve - Google Patents

Equipment for testing liquidity of pulse valve Download PDF

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Publication number
CN101876593A
CN101876593A CN200910050195XA CN200910050195A CN101876593A CN 101876593 A CN101876593 A CN 101876593A CN 200910050195X A CN200910050195X A CN 200910050195XA CN 200910050195 A CN200910050195 A CN 200910050195A CN 101876593 A CN101876593 A CN 101876593A
Authority
CN
China
Prior art keywords
flow
unit
pulse valve
testing
measurement unit
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.)
Pending
Application number
CN200910050195XA
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Chinese (zh)
Inventor
周暐
劳以诺
黄河
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.)
SHANGHAI BAG TYPE DUST REMOVING ACCESSORIES CO Ltd
WL Gore and Associates Inc
Original Assignee
SHANGHAI BAG TYPE DUST REMOVING ACCESSORIES 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 SHANGHAI BAG TYPE DUST REMOVING ACCESSORIES CO Ltd filed Critical SHANGHAI BAG TYPE DUST REMOVING ACCESSORIES CO Ltd
Priority to CN200910050195XA priority Critical patent/CN101876593A/en
Publication of CN101876593A publication Critical patent/CN101876593A/en
Pending legal-status Critical Current

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Abstract

The invention relates to equipment for testing the liquidity of a pulse valve. The equipment comprises an air source generation unit, an airflow coarse adjustment unit, a flow measurement unit, a first pressure measurement unit, a second pressure measurement unit, a temperature measurement unit, an airflow fine adjustment unit, an industrial computer and an electric appliance control unit, wherein the air source generation unit generates airflow; the flow rate of the airflow required by testing is adjusted by the airflow coarse adjustment unit; the required flow rate is measured and displayed by the flow measurement unit; the temperature measurement unit and the first pressure measurement unit are arranged on a front straight pipeline of the tested pulse valve, and the second pressure measurement unit is arranged on a rear straight pipeline of the tested pulse valve; and flow, pressure and temperature signals are transmitted to the industrial computer to be calculated so as to obtain Kv and Cv flow coefficients of the pulse valve. The testing equipment has the advantages of simple structure, convenient measurement, accurate measurement result, high accuracy and small error; and the flow coefficients obtained by testing are important parameters for evaluating the flow capacity of the pulse valve.

Description

A kind of equipment that is used for testing liquidity of pulse valve
Technical field
The present invention relates to the pulse valve proving installation, particularly relate to a kind of equipment that is used for testing liquidity of pulse valve.
Background technology
Pulse valve is mainly used in the sack cleaner, it utilizes variation of gas pressure that the pressure gas in the gas bag (branch gas tank) is jetted in the air chamber of sack cleaner, and make attached to the solid dust on the filtering material and break away from, reach the purpose of deashing or collection, be the crucial accessory of sack cleaner, use treating flour dust and assembling sphere widely with every profession and trade.
The Kv/Cv value is significant as the important parameter of weighing the pulse valve negotiability.At first it is an important indicator of weighing the pulse valve function admirable; Secondly, can calculate pulse valve in the pressure loss of setting under the condition of work by the Kv value, be soot cleaning system design important parameters; Moreover the product design of coefficient of flow paired pulses valve manufacturer and improve innovation great directive significance is arranged.
Concerning a pulse valve manufacturer, whether there is the proving installation of a cover Kv value also most important, this shows the advance of aspects such as its research and development of products ability, technology pursue spirit and service quality height, thereby establishes higher brand, for the environmental protection cause of China is made bigger contribution.
Summary of the invention
Technical matters to be solved by this invention is exactly to provide a kind of equipment that is used for testing liquidity of pulse valve for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions: a kind of equipment that is used for testing liquidity of pulse valve, it is characterized in that, comprise the source of the gas generating unit, air-flow coarse adjustment unit, the flow measurement unit, first pressure measurement cell, second pressure measurement cell, temperature measurement unit, air-flow thin tuning unit, industrial computer and electrical control unit, described source of the gas generating unit is connected with the flow measurement unit by air-flow coarse adjustment unit, this flow measurement unit is connected with the preceding straight length pipeline of measured pulse valve, described first pressure measurement cell and temperature measurement unit are located on the preceding straight length pipeline of measured pulse valve, described second pressure measurement cell is located on the back straight length pipeline of measured pulse valve, described air-flow thin tuning unit is connected with the back straight length pipeline of measured pulse valve, described industrial computer and electrical control unit, first pressure measurement cell, second pressure measurement cell, temperature measurement unit connects, and described electrical control unit is connected with source of the gas generating unit and measured pulse valve.
Described source of the gas generating unit is gas-holder or blower fan.
Described air-flow coarse adjustment unit and air-flow thin tuning unit are the adjustment type valve.
Described flow measurement unit is high precision flow or flow sensor.
Described first pressure measurement cell, second pressure measurement cell are pressure transducer or differential pressure pick-up.
Described temperature measurement unit is a temperature sensor.
Compared with prior art, proving installation of the present invention is simple in structure, measurement is convenient, and measurement result is accurate, the precision height, and error is little, and the coefficient of flow of test gained is an important parameter of weighing pulse valve negotiability quality.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of equipment that is used for testing liquidity of pulse valve, comprise source of the gas generating unit 1, air-flow coarse adjustment unit 2, flow measurement unit 3, first pressure measurement cell 4, second pressure measurement cell 5, temperature measurement unit 6, air-flow thin tuning unit 7, industrial computer 8 and electrical control unit 9, described source of the gas generating unit 1 is connected with flow measurement unit 3 by air-flow coarse adjustment unit 2, this flow measurement unit 3 is connected with the preceding straight length pipeline of measured pulse valve 10, described first pressure measurement cell 4 and temperature measurement unit 6 are located on the preceding straight length pipeline of measured pulse valve 10, described second pressure measurement cell 5 is located on the back straight length pipeline of measured pulse valve 10, described air-flow thin tuning unit 7 is connected with the back straight length pipeline of measured pulse valve 10, described industrial computer 8 and electrical control unit 9, first pressure measurement cell 4, second pressure measurement cell 5, temperature measurement unit 6 connects, and described electrical control unit 9 is connected with source of the gas generating unit 0 and measured pulse valve 10.The source of the gas generating unit produces air-flow, air-flow is regulated the required flow of test through air-flow coarse adjustment unit, required flow is measured by the flow measurement unit and is shown, on the preceding straight length pipeline of detected pulse valve, be provided with temperature measurement unit and pressure measurement cell, on the back straight length of detected pulse valve, be provided with pressure measurement cell; Flow, pressure and temperature signal are sent to industrial computer and calculate, and obtain Kv, the Cv coefficient of flow of pulse valve.
Described source of the gas generating unit is gas-holder or blower fan; Described air-flow coarse adjustment unit and air-flow thin tuning unit are the adjustment type valve; Described flow measurement unit is high precision flow or flow sensor; Described first pressure measurement cell, second pressure measurement cell are pressure transducer or differential pressure pick-up; Described temperature measurement unit is a temperature sensor.
Kv value calculating formula (Δ p<0.5p1):
Kv = Q 4.73 GT Δp ( p 1 + p 2 2 ) - - - ( 1 )
The coefficient of flow that Kv-------calculates with metric unit in the formula;
Q--------standard state volumetric flow of gas, m3/h;
P1-------upstream pressure (absolute pressure), kPa;
P2-------downstream pressure (absolute pressure), kPa;
Pressure reduction before and after the Δ p-----valve, kPa;
G---------gas severe (air=1);
T----------working temperature K (absolute temperature)
The relation of flow coefficient C v and Kv
Cv=1.167Kv
Make detected pulse valve be in full-gear, regulating pipe valve makes pulse valve front and back pressure reduction reach required value (satisfying the boundary condition of Δ p<0.5p1), adopt the volumetric flow rate of flowmeter method of standard table mensuration by pulse valve, and while acquisition and recording pressure and temperature value, can calculate the Kv value according to formula 1.Change the air feed condition, measure 3 groups of instrument readings under the different flow, 3 coefficient of flow calculated values are carried out arithmetic mean, thereby determine coefficient of flow.

Claims (6)

1. equipment that is used for testing liquidity of pulse valve, it is characterized in that, comprise the source of the gas generating unit, air-flow coarse adjustment unit, the flow measurement unit, first pressure measurement cell, second pressure measurement cell, temperature measurement unit, air-flow thin tuning unit, industrial computer and electrical control unit, described source of the gas generating unit is connected with the flow measurement unit by air-flow coarse adjustment unit, this flow measurement unit is connected with the preceding straight length pipeline of measured pulse valve, described first pressure measurement cell and temperature measurement unit are located on the preceding straight length pipeline of measured pulse valve, described second pressure measurement cell is located on the back straight length pipeline of measured pulse valve, described air-flow thin tuning unit is connected with the back straight length pipeline of measured pulse valve, described industrial computer and electrical control unit, first pressure measurement cell, second pressure measurement cell, temperature measurement unit connects, and described electrical control unit is connected with source of the gas generating unit and measured pulse valve.
2. a kind of equipment that is used for testing liquidity of pulse valve according to claim 1 is characterized in that described source of the gas generating unit is gas-holder or blower fan.
3. a kind of equipment that is used for testing liquidity of pulse valve according to claim 1 and 2 is characterized in that, described air-flow coarse adjustment unit and air-flow thin tuning unit are the adjustment type valve.
4. a kind of equipment that is used for testing liquidity of pulse valve according to claim 3 is characterized in that described flow measurement unit is high precision flow or flow sensor.
5. a kind of equipment that is used for testing liquidity of pulse valve according to claim 4 is characterized in that described first pressure measurement cell, second pressure measurement cell are pressure transducer or differential pressure pick-up.
6. a kind of equipment that is used for testing liquidity of pulse valve according to claim 5 is characterized in that described temperature measurement unit is a temperature sensor.
CN200910050195XA 2009-04-28 2009-04-28 Equipment for testing liquidity of pulse valve Pending CN101876593A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910050195XA CN101876593A (en) 2009-04-28 2009-04-28 Equipment for testing liquidity of pulse valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910050195XA CN101876593A (en) 2009-04-28 2009-04-28 Equipment for testing liquidity of pulse valve

Publications (1)

Publication Number Publication Date
CN101876593A true CN101876593A (en) 2010-11-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910050195XA Pending CN101876593A (en) 2009-04-28 2009-04-28 Equipment for testing liquidity of pulse valve

Country Status (1)

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CN (1) CN101876593A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103743559A (en) * 2014-01-13 2014-04-23 广西科穗环境科技有限公司 Quality inspection device for pulse valves
CN106232203A (en) * 2014-04-25 2016-12-14 首要金属科技奥地利有限责任公司 Monitoring to the cleaning process based on gas-pressurized in hose filter equipment
CN108254167A (en) * 2017-12-29 2018-07-06 广州市上腾电子科技有限公司 A kind of discharge coefficient test gas circuit and its application method
CN108458859A (en) * 2017-12-29 2018-08-28 广州市上腾电子科技有限公司 A kind of discharge coefficient test system and method
CN110260931A (en) * 2019-06-18 2019-09-20 西安航天动力试验技术研究所 A kind of liquid propellant pipeline flow field quality evaluation system and evaluation method
CN112729786A (en) * 2020-12-18 2021-04-30 成都成发泰达航空科技有限公司 System, device and method for testing service life of aero-engine blade

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103743559A (en) * 2014-01-13 2014-04-23 广西科穗环境科技有限公司 Quality inspection device for pulse valves
CN106232203A (en) * 2014-04-25 2016-12-14 首要金属科技奥地利有限责任公司 Monitoring to the cleaning process based on gas-pressurized in hose filter equipment
CN108254167A (en) * 2017-12-29 2018-07-06 广州市上腾电子科技有限公司 A kind of discharge coefficient test gas circuit and its application method
CN108458859A (en) * 2017-12-29 2018-08-28 广州市上腾电子科技有限公司 A kind of discharge coefficient test system and method
CN110260931A (en) * 2019-06-18 2019-09-20 西安航天动力试验技术研究所 A kind of liquid propellant pipeline flow field quality evaluation system and evaluation method
CN112729786A (en) * 2020-12-18 2021-04-30 成都成发泰达航空科技有限公司 System, device and method for testing service life of aero-engine blade

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Open date: 20101103