CN105973585A - High-pressure nozzle testing device for descaling machine - Google Patents
High-pressure nozzle testing device for descaling machine Download PDFInfo
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- CN105973585A CN105973585A CN201610449948.4A CN201610449948A CN105973585A CN 105973585 A CN105973585 A CN 105973585A CN 201610449948 A CN201610449948 A CN 201610449948A CN 105973585 A CN105973585 A CN 105973585A
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- pressure nozzle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
A high-pressure nozzle testing device for a descaling machine comprises the components of a water tank, a high-pressure pump set, a low-pressure pump set, energy accumulators, check valves, stop valves, electric contact pressure gauges, a pressure sensor, a flowmeter, an electric regulating valve, a high-pressure nozzle, a high-pressure water pipe, a control bypass and a testing platform. The high-pressure nozzle testing device is characterized in that the water outlet end of the water tank is connected with the high-pressure pump set and the low-pressure pump set; the check valves are mounted at the outlet end of the high-pressure pump set and the outlet end of the low-pressure pump set; each stop valve is mounted at the outlet end of the check valve; the energy accumulators are mounted between the check valves and the stop valves; each electric contact pressure gauge is mounted at the outlet end of the stop valve; the control bypass is provided with the electric regulating valve; the flowmeter is mounted at the outlet end of the electric regulating valve; the high-pressure nozzle is mounted at the end of the high-pressure water pipe; the pressure sensor is mounted at the inlet end of the high-pressure nozzle; and the testing platform tests spraying-out pressure of the nozzle. The high-pressure nozzle testing device can quickly and accurately test defects such as wearing and crack on the high-pressure nozzle and furthermore reduces maintenance cost.
Description
Technical field
The present invention relates to steel rolling detection equipment technical field, particularly a kind of descaling mill high pressure nozzle detects device.
Background technology
In steel rolling operation, descaling mill is to remove steel slab surface iron scale, controls the key equipment of strip surface quality, and its situation quality run directly affects the surface quality of finished strip.In the work of descaling mill, only high-pressure water descaling machine nozzle is in optimum state all the time, could thoroughly be removed by steel slab surface iron scale, produce high-quality product.Under normal circumstances, the situation such as the abrasion of descaling spray nozzle, crackle is difficult to be detected by naked eyes, and particularly descaling mill descaling jet installation site is hidden, more makes daily spot check and checks that difficulty increases.The defects such as the abrasion of descaling spray nozzle, crackle can be directly reflected in product quality, and problematic owing to cannot accurately judge which nozzle concrete, so the regular whole group of way changed can only be taked.If descaling jet occurs in that the situations such as crackle, blocking within the replacement cycle, have impact on product quality, it is necessary to shut down and change, which not only adds equipment cost, add again the hidden danger that product quality problem occurs.Therefore, detecting nozzle wear the most fast and accurately, the defect such as crackle, for ensureing that product quality is the most necessary, does not has simple and effective detection device at prior art device at present.
Summary of the invention
It is an object of the invention to provide a kind of descaling mill high pressure nozzle and detect device, this device can overcome the problem of high-pressure water descaler nozzle operation situation detection difficult, detects whether descaling spray nozzle exists the defects such as abrasion, crackle quickly and easily.
The present invention takes techniques below scheme to be attained in that
nullA kind of descaling mill high pressure nozzle detects device，Including water tank (1)、High-pressure pump group (2)、Low-lift pump group (3)、Accumulator (4)、Check-valves (5)、Stop valve (6)、Electro connecting pressure gauge (7)、Pressure transducer (8)、Flow meter (9)、Electric control valve (10)、High pressure nozzle (11)，High-pressure water pipe (12)、Control bypass (13)、Detection platform (14)，It is characterized in that，Described water tank (1) water side connects high-pressure pump group (2) and low-lift pump group (3)，Check-valves (5) is arranged on high-pressure pump group (2) and low-lift pump group (3) port of export，Check-valves (5) port of export installs stop valve (6)，Accumulator (4) is packed between check-valves (5) and stop valve (6)，Electro connecting pressure gauge (7) is arranged in high-pressure water pipe (12)，Electric control valve (10) is arranged in control bypass (13)，Flow meter (9) is arranged on electric control valve (10) port of export，At high-pressure water pipe (12) end, described high pressure nozzle (11) is installed，Pressure transducer (8) is arranged on the arrival end of high pressure nozzle (11)，Detection platform (14) is fixedly mounted on immediately below high pressure nozzle (11).
Operation principle: water tank (1) supplies water becomes water under high pressure or low setting-out to described high-pressure pump group (2) or described low-lift pump group (3), then flow through described check-valves (5) and described stop valve (6), the effect of valve is to prevent current from flowing backwards and damaging pump group, water under high pressure sprays through described high pressure nozzle (11), when electro connecting pressure gauge (7) detect device pressure exceed pump group set pressure time device quit work, the hitting power of the tested high pressure nozzle of described detection platform (14) multipoint acquisition in test zone (11), collection data are transferred in external computer external computer set up and have nozzle data storehouse, compare with nozzle hitting power scattergram in simulation software in external computer, i.e. can detect that surveyed high pressure nozzle (11) is the most defective, judge the performance of nozzle.
Beneficial effect: the present invention can overcome the problem of high-pressure water descaler nozzle operation situation detection difficult, detects whether descaling spray nozzle exists the defects such as abrasion, crackle quickly and easily.
Accompanying drawing explanation
Fig. 1 is: a kind of descaling mill high pressure nozzle detection device double pump group structural representation of the present invention.
Fig. 2 is: a kind of descaling mill high pressure nozzle detection device three pump group structural representation of the present invention.
In figure:
Water tank 1, high-pressure pump group 2, low-lift pump group 3, accumulator 4, check-valves 5, stop valve 6, electro connecting pressure gauge 7, pressure transducer 8, flow meter 9, electric control valve 10, high pressure nozzle 11, high-pressure water pipe 12, control bypass 13, detection platform 14.
Detailed description of the invention
Below in conjunction with the accompanying drawings 1, the present invention will be described for Fig. 2
nullA kind of descaling mill high pressure nozzle detects device，Including water tank (1)、High-pressure pump group (2)、Low-lift pump group (3)、Accumulator (4)、Check-valves (5)、Stop valve (6)、Electro connecting pressure gauge (7)、Pressure transducer (8)、Flow meter (9)、Electric control valve (10)、High pressure nozzle (11)，High-pressure water pipe (12)、Control bypass (13)、Detection platform (14)，It is characterized in that，Described water tank (1) water side connects high-pressure pump group (2) and low-lift pump group (3)，Check-valves (5) is arranged on high-pressure pump group (2) and low-lift pump group (3) port of export，Check-valves (5) port of export installed by stop valve (6)，Accumulator (4) is packed between check-valves (5) and stop valve (6)，Electro connecting pressure gauge (7) is arranged on the port of export of stop valve (6)，Electric control valve (10) is arranged in control bypass (13)，Flow meter (9) is arranged on electric control valve (10) port of export，At high-pressure water pipe (12) end, described high pressure nozzle (11) is installed，Pressure transducer (8) is arranged on the arrival end of high pressure nozzle (11)，Described detection platform (14) is fixedly mounted on immediately below high pressure nozzle (11)，The hitting power of the tested high pressure nozzle of detection platform (14) multipoint acquisition in test zone (11)，Collection data are transferred in external computer external computer set up and have nozzle data storehouse，The performance of nozzle is judged compared with the normal nozzles hitting power set in external computer，If the strike force value measured is in setting value，Surveyed high pressure nozzle (11) quality is good，If the strike force value measured is outside setting value，Surveyed high pressure nozzle (11) is defective.
As it is shown in figure 1, device is under low discharge test case, single high-pressure pump group (2) work, or only low-lift pump group (3) work, to reduce the abrasion of pump group, improve energy utilization rate.Accumulator (4) is arranged on the port of export of pump group for reducing the stability that device is impacted the pressure of holding means by pressure.The port of export at stop valve (6) is provided with electro connecting pressure gauge (7), when device pressure reaches to make pump group alarm when pump group sets safe pressure, and quits work.Controlling to bypass on (13), electric control valve (10) is installed, regulate the valve opening of electric control valve (10) by the pressure flow characteristics auto of inspection high pressure nozzle (11) thus change the flow of device, described detection platform (14) is fixedly mounted on immediately below high pressure nozzle (11), the hitting power of the tested high pressure nozzle of detection platform (14) multipoint acquisition in test zone (11), collection data are transferred in external computer external computer set up and have nozzle data storehouse, the performance of nozzle is judged compared with the normal nozzles hitting power set in external computer, if the strike force value measured is in setting value, surveyed high pressure nozzle (11) quality is good, if the strike force value measured is outside setting value, surveyed high pressure nozzle (11) is defective.
Device two high-pressure pump groups (2) in parallel as shown in Figure 2, low-lift pump group (3) is in parallel with high-pressure pump group (2), in the case of big flow rate test, the work of double high-pressure pump groups (2) of device or high-pressure pump group (2), low-lift pump group (3) all run work, meet the system requirement to flow.Accumulator (4) is arranged on the port of export of pump group for reducing the stability that device is impacted the pressure of holding means by pressure.The port of export at stop valve (6) is provided with electro connecting pressure gauge (7), when device pressure reaches to make pump group alarm when pump group sets safe pressure, and quits work.Controlling to bypass on (13), electric control valve (10) is installed, regulate the valve opening of electric control valve (10) by the pressure flow characteristics auto of inspection high pressure nozzle (11) thus change the flow of device, described detection platform (14) is fixedly mounted on immediately below high pressure nozzle (11), the hitting power of the tested high pressure nozzle of detection platform (14) multipoint acquisition in test zone (11), collection data are transferred in external computer external computer set up and have nozzle data storehouse, the performance of nozzle is judged compared with the normal nozzles hitting power set in external computer, if the strike force value measured is in setting value, surveyed high pressure nozzle (11) quality is good, if the strike force value measured is not in setting value, surveyed high pressure nozzle (11) is defective.
During the test of embodiment mesolow, force value, setting value such as following table is hit in test.
During the test of embodiment mesohigh, force value, setting value such as following table is hit in test.
Claims (2)
- null1. a descaling mill high pressure nozzle detects device，Including water tank (1)、High-pressure pump group (2)、Low-lift pump group (3)、Accumulator (4)、Check-valves (5)、Stop valve (6)、Electro connecting pressure gauge (7)、Pressure transducer (8)、Flow meter (9)、Electric control valve (10)、High pressure nozzle (11)，High-pressure water pipe (12)、Control bypass (13)、Detection platform (14)，It is characterized in that，Described water tank (1) water side connects high-pressure pump group (2) and low-lift pump group (3)，Check-valves (5) is arranged on high-pressure pump group (2) and low-lift pump group (3) port of export，Check-valves (5) port of export installs stop valve (6)，Accumulator (4) is packed between check-valves (5) and stop valve (6)，Electro connecting pressure gauge (7) is arranged in high-pressure water pipe (12)，Electric control valve (10) is arranged in control bypass (13)，Flow meter (9) is arranged on electric control valve (10) port of export，At high-pressure water pipe (12) end, described high pressure nozzle (11) is installed，Pressure transducer (8) is arranged on the arrival end of high pressure nozzle (11)，Detection platform (14) is fixedly mounted on immediately below high pressure nozzle (11).
- A kind of descaling mill high pressure nozzle the most according to claim 1 detects device, it is characterised in that described high-pressure pump group (2) is more than 2 groups, is connected in parallel, and low-lift pump group (3) is 1 group, is connected in parallel with high-pressure pump group (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610449948.4A CN105973585A (en) | 2016-06-21 | 2016-06-21 | High-pressure nozzle testing device for descaling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610449948.4A CN105973585A (en) | 2016-06-21 | 2016-06-21 | High-pressure nozzle testing device for descaling machine |
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| CN105973585A true CN105973585A (en) | 2016-09-28 |
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| CN201610449948.4A Pending CN105973585A (en) | 2016-06-21 | 2016-06-21 | High-pressure nozzle testing device for descaling machine |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4017293C1 (en) * | 1990-05-30 | 1991-08-29 | Hoesch Stahl Ag, 4600 Dortmund, De | High pressure fluid cleaning method - involves using equation with deviation detected to selectively halt operation |
| CN202057480U (en) * | 2011-04-20 | 2011-11-30 | 北京科技大学 | High pressure water descaling nozzle performance testing device |
| CN202836938U (en) * | 2012-08-10 | 2013-03-27 | 邯钢集团邯宝钢铁有限公司 | Detection apparatus for high pressure water de-scaling nozzles |
| CN104155088A (en) * | 2014-07-17 | 2014-11-19 | 北京首钢股份有限公司 | Device and method for target practice tests of high-pressure water descaling nozzles |
| CN204220646U (en) * | 2014-11-14 | 2015-03-25 | 一重集团大连设计研究院有限公司 | A kind of high-pressure water descaler |
| CN204903156U (en) * | 2015-09-06 | 2015-12-23 | 河北钢铁股份有限公司 | Jet nozzle hitting power distribution detection device |
| CN205861335U (en) * | 2016-06-21 | 2017-01-04 | 广西梧州市金海不锈钢有限公司 | A kind of descaling mill high pressure nozzle detects device |
-
2016
- 2016-06-21 CN CN201610449948.4A patent/CN105973585A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4017293C1 (en) * | 1990-05-30 | 1991-08-29 | Hoesch Stahl Ag, 4600 Dortmund, De | High pressure fluid cleaning method - involves using equation with deviation detected to selectively halt operation |
| CN202057480U (en) * | 2011-04-20 | 2011-11-30 | 北京科技大学 | High pressure water descaling nozzle performance testing device |
| CN202836938U (en) * | 2012-08-10 | 2013-03-27 | 邯钢集团邯宝钢铁有限公司 | Detection apparatus for high pressure water de-scaling nozzles |
| CN104155088A (en) * | 2014-07-17 | 2014-11-19 | 北京首钢股份有限公司 | Device and method for target practice tests of high-pressure water descaling nozzles |
| CN204220646U (en) * | 2014-11-14 | 2015-03-25 | 一重集团大连设计研究院有限公司 | A kind of high-pressure water descaler |
| CN204903156U (en) * | 2015-09-06 | 2015-12-23 | 河北钢铁股份有限公司 | Jet nozzle hitting power distribution detection device |
| CN205861335U (en) * | 2016-06-21 | 2017-01-04 | 广西梧州市金海不锈钢有限公司 | A kind of descaling mill high pressure nozzle detects device |
Non-Patent Citations (1)
| Title |
|---|
| 朱学彪 等: "高压除磷喷嘴喷射流场数值模拟与试验分析", 《机械设计与制造》 * |
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Application publication date: 20160928 |