CN103776600A - Automatic water filling type leak tester for water pump - Google Patents
Automatic water filling type leak tester for water pump Download PDFInfo
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- CN103776600A CN103776600A CN201410039709.2A CN201410039709A CN103776600A CN 103776600 A CN103776600 A CN 103776600A CN 201410039709 A CN201410039709 A CN 201410039709A CN 103776600 A CN103776600 A CN 103776600A
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- water pump
- water
- irrigation
- liquid
- liquid storage
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 153
- 239000007788 liquid Substances 0.000 claims abstract description 54
- 238000003973 irrigation Methods 0.000 claims abstract description 43
- 238000003860 storage Methods 0.000 claims abstract description 32
- 230000002262 irrigation Effects 0.000 claims abstract description 26
- 238000009530 blood pressure measurement Methods 0.000 claims description 9
- 238000010992 reflux Methods 0.000 claims description 8
- 239000000523 sample Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- 230000003449 preventive effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 10
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000000903 blocking effect Effects 0.000 abstract 4
- 239000012530 fluid Substances 0.000 description 25
- 230000008901 benefit Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
本发明公开了一种水泵自动灌水式试漏机，其包括：设置有工装台的支架、灌水装置及报警装置，所述工装台对应于水泵设置有封堵装置及装夹装置，其中：所述封堵装置包括：若干个与所述水泵的进水口及出水口一一对应的封堵单元；所述灌水装置包括：一内腔分为储液区及无液区的储液装置，所述储液区通过灌水管至少与一个所述封堵单元连接，当所述封堵单元封堵在所述水泵的进水口及出水口时，所述储液区通过所述灌水管与所述水泵内腔相通；所述无液区通过一充气管与一气源连接，所述充气管上设置有压力检测装置，且所述无液区还设置有排气装置。本发明利用气压把水灌进水泵内并通过检测压力情况来判断水泵的气密性，结构简单，检测灵敏准确。
The invention discloses a water pump automatic irrigation type leak tester, which comprises: a bracket provided with a tooling platform, a watering device and an alarm device, and the tooling platform is provided with a blocking device and a clamping device corresponding to the water pump, wherein: the The blocking device includes: several blocking units corresponding to the water inlet and the water outlet of the water pump; the irrigation device includes: a liquid storage device whose inner cavity is divided into a liquid storage area and a liquid-free area. The liquid storage area is connected to at least one of the blocking units through the irrigation pipe, and when the sealing unit is blocked at the water inlet and the water outlet of the water pump, the liquid storage area is connected to the The inner cavities of the water pumps are connected; the anhydrous area is connected to an air source through an inflatable tube, the inflatable tube is provided with a pressure detection device, and the anhydrous area is also provided with an exhaust device. The invention utilizes air pressure to pour water into the water pump and judges the airtightness of the water pump by detecting the pressure condition, and has simple structure and sensitive and accurate detection.
Description
Technical field
The present invention relates to the detection field of water pump seamless, particularly a kind of water pump auto-irrigation formula leakage tester.
Background technology
In water pump operation process, if the sealing property of water pump and effect are bad, not only have a strong impact on the safe operation of water system, and easily cause the waste of a large amount of manpower and financial resources, therefore need the sealing property of water pump to do accurately and detect.Existing water pump leak testing process comprises manual operation detection and passes through leak test equipment Inspection, when manual operation detects, each product needs artificial sealing gap in multiple times, not only labour intensity is large, operation progress is slow, mistake probability increases, and products air tightness is difficult for detecting, and increases production cost.The shortcomings such as and existing leak test equipment often has complex structure, cost is higher, and floor area is large.
Summary of the invention
In order to overcome, existing leak testing process labour intensity is large in the present invention, complex structure and high in cost of production technological deficiency, has invented a kind of water pump auto-irrigation formula leakage tester, has simple in structurely, can automatically detect, detect sensitive and accurate, work efficiency advantages of higher.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of water pump auto-irrigation formula leakage tester, it comprises: the support, irrigation device and the warning device that are provided with tooling platform, described tooling platform is provided with plugging device and clamping device corresponding to water pump, wherein: described plugging device comprises: water inlet and the water delivering orifice shutoff unit one to one of several and described water pump; Described irrigation device comprises: an inner chamber is divided into the device for storing liquid of Ji Wu liquid zone, liquid storage district, described liquid storage district is at least connected with a described shutoff unit by irrigation pipe, when described shutoff unit shutoff is during at the water inlet of described water pump and water delivering orifice, described liquid storage district communicates with described water pump inner chamber by described irrigation pipe; Describedly be connected with a source of the gas by a gas-filled tube without liquid zone, on described gas-filled tube, be provided with pressure-detecting device, and be describedly also provided with exhaust apparatus without liquid zone.
Preferably, described shutoff unit is to be fixedly installed on tooling platform and piston rod head end is provided with the shutoff cylinder of blanking cover, described blanking cover is corresponding one by one with water inlet and the water delivering orifice of described water pump, and the liquid storage district of described device for storing liquid is at least connected with a described blanking cover by described irrigation pipe, and the link of described irrigation pipe and described blanking cover is through described blanking cover with when described shutoff unit shutoff is during at the water inlet of described water pump and water delivering orifice, and described liquid storage district communicates with described water pump inner chamber by described irrigation pipe.
Preferably, described irrigation pipe is one and is connected with blanking cover described in one of them.
Preferably, on described blanking cover, be arranged with the seal that a material is silica gel.
Preferably, described device for storing liquid is that a liquid storage is filled with, and it is fixedly installed on described support and is positioned at the below of described tooling platform.
Preferably, the liquid storing in the liquid storage district of described device for storing liquid is the water body that is added with rust preventive.
Preferably, described pressure-detecting device comprises: one be arranged at pressure measurement on gas-filled tube probe and one with the described pressure measurement tensimeter being connected of popping one's head in, described tensimeter is arranged on support.
Preferably, described exhaust apparatus comprises a gas outlet being connected without liquid zone with described device for storing liquid and is arranged at the air discharge cook on described gas outlet.
Preferably, it is characterized in that: also comprise reflux, described reflux comprises: one is arranged on support and is positioned at the water storage tray of described tooling platform bottom, and described water storage tray is connected with described device for storing liquid by a recirculatory pipe, and on described recirculatory pipe, is provided with a backflow switch.
Preferably, described recirculatory pipe is connected with the storage area of described fluid reservoir.
Preferably, described warning device is an alarm lamp.
Preferably, described clamping device comprises that one is fixed on the bearing on described tooling platform and is arranged at the pressurized cylinder on described bearing, and the piston rod of described pressurized cylinder is downward and with to be installed on water pump on described tooling platform corresponding.
Preferably, also comprise for controlling described shutoff cylinder, pressurized cylinder, backflow switch, the electromagnetic valve component of air discharge cook and source of the gas cooperating, and described electromagnetic valve component is arranged in an electromagnetic valve component case being fixed on described support, described electromagnetic valve component manipulates by control system, described set-up of control system is in a control panel being fixedly installed on described support, on described control panel, there is shift knob to operate with handled easily personnel corresponding to described set-up of control system, described pressure measurement probe can feed back to described control system pressure information, and report to the police by alarm lamp described in described control system control.
The present invention compared with prior art, has following beneficial effect:
1, a kind of water pump auto-irrigation of the present invention formula leakage tester, it is poured into water in water pump by air pressure, and judge the sealing property of water pump by detecting air pressure change and the situation of leaking, do not need the extra propulsion system of pouring water, only need inflate and just can realize testing by source of the gas, simple in structure, detect sensitive and accurate.
2, a further advantage of the invention is by tensimeter and alarm lamp and can in time the information that seepage occurs be fed back to operating personnel.
3, the liquid a further advantage of the invention is in fluid reservoir is the water body that is added with rust preventive, and it can effectively prevent that after detection completes water pump from getting rusty.
4, the present invention further advantage be by be arranged with the second seal take silica gel as material on blanking cover, its good springiness wear-resisting, sealing is strong, high life.。
5, the present invention further advantage be that it can manually be controlled progressively and work, also can carry out automatic operation by control system, work flexibly and detection efficiency high, labor intensity of operating staff is little.
6, the present invention further advantage be to be provided with reflux, can recycle fully water body, cost-saving.
Accompanying drawing explanation
The structural representation that accompanying drawing 1 is a kind of water pump auto-irrigation of the present invention formula leakage tester;
Wherein:
1, support;
2, fluid reservoir;
3, air discharge cook;
4, warning device;
5, shutoff cylinder;
6, tensimeter;
7, machine frame;
8, gas-filled tube;
9, pressure measurement probe;
10, pressurized cylinder;
11, blanking cover;
12, irrigation pipe;
13, electromagnetic valve component case;
14, backflow switch;
15, water storage tray;
16, control panel;
17, recirculatory pipe;
18, bearing;
19, gas outlet.
Embodiment
Further describe the present invention referring to accompanying drawing and in conjunction with embodiment, to make those skilled in the art can implement according to this with reference to instructions word, but be to be understood that protection scope of the present invention is not subject to the restriction of embodiment.It will be appreciated that, mentioned in following embodiment of the present invention " on ", D score, " left side ", " right side " be all take the direction shown in each figure as benchmark, these words that are used for limiting direction are only used to be convenient to explanation, do not represent the restriction to the concrete technical scheme of the present invention.
Embodiment
As shown in Figure 1, a kind of water pump auto-irrigation formula leakage tester, it comprises: support 1, machine frame 7, irrigation device, pick-up unit, reflux and warning device 4, wherein:
Machine frame 7 is fixed on the upper end of support 1, machine frame 7 is provided with register pin so that water pump (figure depending on) can accurately locate time mounted thereto, and a bearing 18 corresponding with water pump installation site is set on machine frame 7, about bearing 18 comprises, two lower ends are fixed on working plate 4 and the upwardly extending clamping plate in upper end, two clamping plate upper ends are folded with a supporting plate, on supporting plate, be fixed with a pressurized cylinder 10, the piston rod of pressurized cylinder 10 is towards lower end, and after water pump is had good positioning, the piston rod of pressurized cylinder 10 stretches out water pump to be fixed on machine frame 7 downwards, pressurized cylinder 10 also claims pneumohydraulic pressure-cylinder, it combines pressure cylinder and supercharger integral type, larger with respect to its pressure providing of common cylinder, needed snap-in force when fixing to water pump to meet.
On machine frame 7, also correspond respectively to mounted thereto and have good positioning after the water inlet of water pump and water delivering orifice be provided with the shutoff cylinder 5 of respective amount, the piston rod head end of shutoff cylinder 5 is provided with blanking cover 11, blanking cover 11 can entirety process with silica gel material, also can be arranged with a use silica gel by a metallic object outside forms as the seal combination of material, therefore the good springiness of blanking cover 11 wear-resisting, sealing is strong, high life.Blanking cover 11 is corresponding one by one with water inlet and the water delivering orifice of water pump respectively, so that the piston rod of shutoff cylinder 5 is protruding, blanking cover 11 can seal all water inlets and the water delivering orifice of water pump accordingly, so that an airtight cavity of the inner formation of water pump.The present embodiment is for ease of understanding, and setting water pump is the water pump that only has a water inlet and a water delivering orifice of commonly using, and on machine frame 7, only two shutoff cylinders 5 corresponding with the half-finished water inlet of water pump and water delivering orifice need be set respectively in the left and right sides.
Irrigation device comprises: fluid reservoir 2, irrigation pipe 12, gas-filled tube 9 and source of the gas (figure does not look), fluid reservoir 2 is fixedly installed on support 1 and is positioned at the below of machine frame 7, the inner chamber of fluid reservoir 2 stores the water body that is added with rust preventive, it can effectively prevent that after detection completes water pump from getting rusty, water body is not full of the inner chamber of fluid reservoir 2, therefore the inner chamber bottom of fluid reservoir 2 is liquid storage district, Wei Wu liquid zone, top, liquid storage district is connected with one of them blanking cover 11 by an irrigation pipe 12, one end that irrigation pipe 12 is connected with blanking cover 11 is through blanking cover 11 so that blanking cover 11 shutoff on the water inlet of water pump or water delivering orifice time, liquid storage district communicates with water pump inner chamber.Is connected with source of the gas by gas-filled tube 9 without liquid zone, in the time that source of the gas is charged into gas by gas-filled tube 9 is past without liquid zone, the pressure increase in fluid reservoir 2, just can be circulated into water body in water pump, to carry out sealing propertytest.On gas-filled tube 9, be provided with pressure measurement probe 8, and pressure measurement probe 8 is connected with the tensimeter 6 being arranged on support, pressure measurement is popped one's head in for detection of the pressure condition in fluid reservoir 2, and show by tensimeter 6, when filling after water body in water pump, source of the gas stops inflation, keep each parts motionless to enter packing state, the pressurize regular hour is to detect the sealing of water pump, the preferred pressurize of the present embodiment five minutes, if water pump seamless is good, in pressure maintaining period, the force value in fluid reservoir 2 is constant, if when water pump generation seepage, because the pressure in fluid reservoir 2 is larger, it can constantly supplement water body and enter in water pump, thereby make becoming greatly without liquid zone volume in fluid reservoir 2, pressure diminishes, the numerical value on tensimeter 6 just can diminish, therefore the stool and urine whether changing by the force value on tensimeter 6 and change can judge the sealing property of water pump.
Fluid reservoir 2 be also provided with exhaust apparatus without liquid zone, exhaust apparatus comprises gas outlet 19 and air discharge cook 3, one end of gas outlet 19 and fluid reservoir 2 without liquid zone be connected be connected without liquid zone, air discharge cook 3 is arranged on gas outlet 19 to control the break-make of gas outlet 19, air discharge cook 3 is a solenoid valve, after detecting, opens air discharge cook 3, gas in fluid reservoir 2 is just discharged by gas outlet 19, and gas unclamps blanking cover 11 by shutoff cylinder 5 after having discharged again.
The lower end of machine frame 7 is also provided with a reflux, reflux comprises water storage tray 15 and recirculatory pipe 17, water storage tray is fixedly installed on support 1, and between machine frame 7 and fluid reservoir 2, and it communicates with the liquid storage district of fluid reservoir 2 by recirculatory pipe 17, on recirculatory pipe 17, be provided with a backflow switch 14 to control the break-make of recirculatory pipe 17, backflow switch 14 is a solenoid valve, after detecting, shutoff cylinder 5 reclaims piston rod, make blanking cover 11 leave water pump, the piston rod of pressurized cylinder 10 rises to unclamp water pump simultaneously, water body in water pump is discharged on water storage tray 15, open again backflow switch 14, water body is just back in fluid reservoir 2 by recirculatory pipe 17 under Action of Gravity Field, automatically realizing water body recycles, cost-saving.
Warning device 4 is arranged on support 1, and it is an alarm lamp, and in the time there is Seepage in testing process, it can be reported to the police by sending light.
Pressurized cylinder 10, shutoff cylinder 5 and source of the gas are by control device control, control device comprises electromagnetic valve component (figure does not look), control system and control panel 11, electromagnetic valve component is arranged in the electromagnetic valve component case 13 that is fixed on support 1 side, set-up of control system is in a control panel 16 being fixed on support 1, it is PLC system, control system is used for controlling electromagnetic valve component, backflow switch 14, air discharge cook 3 and warning device 4 cooperatings, the display screen that is also provided with the shift knob corresponding with control system on control panel 11 and is connected with control system, whole leakage tester can move automatically by numerical control programming, again can be manually by operation, convenience and high-efficiency, practical.
The course of work of the present invention: backflow switch 14 and air discharge cook 3 keep closing, water pump is passed through to register pin location and installation on machine frame 7, and stretch out lower pressure handle water pump by pressurized cylinder 10 piston rods and be fixed on machine frame 7, then shutoff cylinder 5 stretches out piston rod, by blanking cover 11, all water inlets of water pump and freeing port shutoff are got up, then source of the gas inflating so that the water body in fluid reservoir 2 is filled with in intake pump by irrigation pipe 12 without liquid zone from gas-filled tube toward fluid reservoir 2, pressure in water body is full of water pump inner chamber and fluid reservoir 2 reaches after certain value, source of the gas stops inflation, and pressurize five minutes, in pressure maintaining period, detect that the force value in fluid reservoir 2 is unchanged, represent that water pump seamless is good, after finishing, pressurize opens air discharge cook 3 to discharge without the gas in liquid zone by gas outlet 19, reclaim piston rod by shutoff cylinder 5 simultaneously, make each blanking cover 11 leave water inlet and the water delivering orifice of water pump, and reclaim piston rod to unclamp water pump by pressurized cylinder 10, water body in water pump is discharged in water storage tray, then open backflow switch 14, water body is flow in fluid reservoir 2 by recirculatory pipe 17 again, finally closing volume switch 14 and air discharge cook 3 again.If detect in pressure maintaining period that the force value in fluid reservoir 2 changes, warning device sends alerting signal and keeps current state not carry out next step action, operating personnel just can be flowed out by observation the position of water body, mark the position that seepage specifically occurs water pump, when operating personnel carry out after ann reset, more again then carry out exhaust, unclamp water pump and a working cycle has been moved in discharge opeing.
The present invention utilizes air pressure that water is filled with in intake pump and judges the impermeability of water pump by detected pressures situation, does not need the extra propulsion system of pouring water, simple in structure, and detects sensitive and accurately, and work efficiency is high.The present invention is by clamping device and plugging device are done after transformation pointedly with respect to other product, and the tightness that also can be applicable to other products detects.
Disclosed is above only specific embodiments of the invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of, as all fallen into protection scope of the present invention.
Claims (10)
1. a water pump auto-irrigation formula leakage tester, it comprises: be provided with support, irrigation device and the warning device of tooling platform, described tooling platform is provided with plugging device and clamping device corresponding to water pump, it is characterized in that:
Described plugging device comprises: water inlet and the water delivering orifice shutoff unit one to one of several and described water pump;
Described irrigation device comprises: an inner chamber is divided into the device for storing liquid of Ji Wu liquid zone, liquid storage district, described liquid storage district is at least connected with a described shutoff unit by irrigation pipe, when described shutoff unit shutoff is during at the water inlet of described water pump and water delivering orifice, described liquid storage district communicates with described water pump inner chamber by described irrigation pipe; Describedly be connected with a source of the gas by a gas-filled tube without liquid zone, on described gas-filled tube, be provided with pressure-detecting device, and be describedly also provided with exhaust apparatus without liquid zone.
2. water pump auto-irrigation formula leakage tester according to claim 1, it is characterized in that: described shutoff unit is to be fixedly installed on tooling platform and piston rod head end is provided with the shutoff cylinder of blanking cover, described blanking cover is corresponding one by one respectively with water inlet and the water delivering orifice of described water pump, and the liquid storage district of described device for storing liquid is at least connected with a described blanking cover by described irrigation pipe, and the link of described irrigation pipe and described blanking cover through described blanking cover with when described shutoff unit shutoff is during at the water inlet of described water pump and water delivering orifice, described liquid storage district communicates with described water pump inner chamber by described irrigation pipe.
3. water pump auto-irrigation formula leakage tester according to claim 2, is characterized in that: described irrigation pipe is one and is connected with blanking cover described in one of them.
4. water pump auto-irrigation formula leakage tester according to claim 2, is characterized in that: on described blanking cover, be arranged with the seal that a material is silica gel.
5. water pump auto-irrigation formula leakage tester according to claim 1, is characterized in that: described device for storing liquid is that a liquid storage is filled with, and it is fixedly installed on described support and is positioned at the below of described tooling platform.
6. water pump auto-irrigation formula leakage tester according to claim 1, is characterized in that: the liquid storing in the liquid storage district of described device for storing liquid is the water body that is added with rust preventive.
7. water pump auto-irrigation formula leakage tester according to claim 1, is characterized in that: described pressure-detecting device comprises: one be arranged at pressure measurement on gas-filled tube probe and one with the described pressure measurement tensimeter being connected of popping one's head in, described tensimeter is arranged on support.
8. water pump auto-irrigation formula leakage tester according to claim 1, is characterized in that: described exhaust apparatus comprises a gas outlet being connected without liquid zone with described device for storing liquid and is arranged at the air discharge cook on described gas outlet.
9. water pump auto-irrigation formula leakage tester according to claim 1, it is characterized in that: described clamping device comprises that one is fixed on the bearing on described tooling platform and is arranged at the pressurized cylinder on described bearing, the piston rod of described pressurized cylinder is downward and with to be installed on water pump on described tooling platform corresponding.
10. according to the water pump auto-irrigation formula leakage tester described in any one in claim 1-9, it is characterized in that: also comprise reflux, described reflux comprises: one is arranged on support and is positioned at the water storage tray of described tooling platform bottom, described water storage tray is connected with described device for storing liquid by a recirculatory pipe, and on described recirculatory pipe, is provided with a backflow switch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039709.2A CN103776600B (en) | 2014-01-27 | 2014-01-27 | A kind of water pump auto-irrigation formula leakage tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039709.2A CN103776600B (en) | 2014-01-27 | 2014-01-27 | A kind of water pump auto-irrigation formula leakage tester |
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| CN103776600A true CN103776600A (en) | 2014-05-07 |
| CN103776600B CN103776600B (en) | 2016-05-04 |
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Cited By (6)
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| CN108426681A (en) * | 2018-03-29 | 2018-08-21 | 博众精工科技股份有限公司 | Sealing test component and its system |
| CN108593217A (en) * | 2018-03-29 | 2018-09-28 | 博众精工科技股份有限公司 | Sealing test system |
| CN110095238A (en) * | 2019-05-31 | 2019-08-06 | 北京长城华冠汽车技术开发有限公司 | Electromechanical testing platform cooling system method for testing tightness and leak-testing apparatus |
| CN112521983A (en) * | 2020-09-28 | 2021-03-19 | 福建省气柜设备安装有限公司 | Automatic water replenishing device of gas purification system and control method thereof |
| CN113399060A (en) * | 2021-07-13 | 2021-09-17 | 株洲长江硬质合金设备有限公司 | Automatic control system of wet grinding machine and wet grinding method |
| CN115126688A (en) * | 2022-08-09 | 2022-09-30 | 北京联创富通系统集成有限公司 | A super-large flow integrated automatic inspection lifting pump station |
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| CN103776600B (en) | 2016-05-04 |
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Denomination of invention: A Water Pump Automatic Filling Leakage Testing Machine Effective date of registration: 20230705 Granted publication date: 20160504 Pledgee: Bank of Guilin Co.,Ltd. Yulin Branch Pledgor: Guangxi Kechuang New Material Co.,Ltd. Registration number: Y2023450000097 |
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Denomination of invention: An automatic water pump leak testing machine Granted publication date: 20160504 Pledgee: Bank of Guilin Co.,Ltd. Yulin Branch Pledgor: Guangxi Kechuang New Material Co.,Ltd. Registration number: Y2025450000006 |