CN203672757U - Dry-resistant bacteria penetration tester - Google Patents
Dry-resistant bacteria penetration tester Download PDFInfo
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- CN203672757U CN203672757U CN201420040025.XU CN201420040025U CN203672757U CN 203672757 U CN203672757 U CN 203672757U CN 201420040025 U CN201420040025 U CN 201420040025U CN 203672757 U CN203672757 U CN 203672757U
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- valve
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- flow regulator
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Abstract
The utility model relates to a dry-resistant bacteria penetration tester which can effectively solve the problems that a dry-resistant bacteria penetration testing vibration table top is unstable in vibration frequency and inaccurate in time control, and experimental results of test boxes are non-uniform. The technical scheme includes that an air outlet of an air source is connected with an air inlet of an air storage tank, an air outlet of the air storage tank is connected with an air inlet of a three-way valve through a stop valve and a pressure regulating valve which are serially connected, an air outlet of the three-way valve is respectively connected with a pressure meter and a flow regulator, an air outlet of the flow regulator is connected with an air inlet of a two-position three-way electromagnetic valve through a flow meter, an air outlet of the two-position three-way electromagnetic valve is respectively connected with a ball valve and a vibration source mounted on a vibration table, the vibration table comprises a rubber bearing and a vibration table top mounted on the rubber bearing, test boxes are circularly and uniformly distributed on the vibration table top on the periphery of the vibration source, and an output end of a time relay is connected with a control end of the two-position three-way electromagnetic valve. The dry-resistant bacteria penetration tester is stable in air pressure and flow, accurate in test result, convenient to use and fine in effect.
Description
Technical field
The utility model relates to the measuring equipment in metering, measurement, check field, especially whether medical protective garment key position is had intercept scurf, the one of dust institute with developing as dry state microbiological tests such as SARS virus H7N9 bird viruses hinders dry state bacterial penetration tester.
Background technology
At present, the domestic product information of not yet issuing related genera and seemingly hinder dry state bacterial penetration tester.Resistance dry state bacterial penetration method of testing existent defect has: 1, because pressure and the unstable vibration frequency of vibration table surface used that causes of instantaneous delivery of the excitation source of the gas in pneumatic vibration source are unstable, the root 1 of this problem is that current domestic and international flow control valve (containing needle valve) directly cannot realize the regime flow adjustment to large flow gas.If root 2 is the topology layout of vibration test table top and does not meet vibration mechanics principle, easily produce multiple-frequency vibration, cause vibrational energy distribution inequality, cause that the vibration frequency of vibration table surface is unstable; 2, the time of former method is controlled the detection person that serves as reasons and uses stopwatch control, and the time is controlled inaccurate, automatically controls degree poor, cannot add up and control the efficiency test time; 3, on the vibration table of institute's reference, the mutual arrangement layout of test box and vibration source is unreasonable, there is frequency multiplication phenomenon in the forcing frequency of each test box, cause the forcing frequency of each test box and the amplitude of generation inhomogeneous, vibrational energy loss is large, and the experiment effect of each test box is inconsistent.Therefore, a kind of resistance of development dry state bacterial penetration proving installation is urgent problem.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the object of the utility model is just to provide a kind of resistance dry state bacterial penetration tester, and the vibration frequency that can effectively solve resistance dry state bacterial penetration test vibration platform table top is unstable, the time controls the inconsistent problem of experiment effect inaccurate and each test box.
The technical scheme that the utility model solves is, comprise gas-holder, flow regulator and shaking table, the gas outlet of source of the gas is connected with the air intake opening of gas-holder, the gas outlet of gas-holder connects the air intake opening of T-valve through stop valve and the pressure-regulating valve of series connection, the gas outlet of T-valve connects respectively tensimeter and flow regulator, the gas outlet of flow regulator is connected with the air intake opening of two-position three way magnetic valve through flowmeter, the gas outlet of two-position three way magnetic valve access valve and be contained in the vibration source on shaking table respectively, shaking table comprises rubber support and is contained in the vibration table on rubber support, the geometric center of vibration table is equipped with contiguous block, vibration source is fixed on contiguous block, test box is rounded to be distributed on vibration source vibration table around, the control end of the output termination two-position three way magnetic valve of the time relay.
The utility model novel structure uniqueness, advantages of simple, gaseous tension and stability of flow, the excited frequency in the pneumatic vibration source exciting is stable, accumulative total and the control of efficiency test time are realized, thereby launch test with stable vibration frequency and efficiency test time control mode, vibration source is fixed on the symcenter of the test box distributing with even circumferential, with symmetrical mechanical structure, eliminate the frequency multiplication phenomenon that each test box forcing frequency exists, realize each test box vibration frequency and amplitude even, simulate microorganism and penetrate with particles such as human body scurfs the process of medical protective garment with this under dry state environmental baseline, test findings is accurate, easy to use, effective, it is the innovation on resistance dry state bacterial penetration proving installation.
Accompanying drawing explanation
Fig. 1 is structure connection layout of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Provided by Fig. 1, the utility model comprises gas-holder, flow regulator and shaking table, the gas outlet of source of the gas 1 is connected with the air intake opening of gas-holder 2, the gas outlet of gas-holder 2 connects the air intake opening of T-valve 10 through stop valve 3 and the pressure-regulating valve 4 of series connection, the gas outlet of T-valve 10 connects respectively tensimeter 5 and flow regulator, the gas outlet of flow regulator is connected with the air intake opening of two-position three way magnetic valve 8 through flowmeter 7, the gas outlet of two-position three way magnetic valve 8 access valve 9 and be contained in the vibration source 14 on shaking table respectively, shaking table comprises rubber support 17 and is contained in the vibration table 15 on rubber support, the geometric center of vibration table 15 is equipped with contiguous block 16, vibration source 14 is fixed on contiguous block 16, test box 13 is rounded to be distributed on vibration source 14 vibration table around, the control end of the output termination two-position three way magnetic valve 8 of the time relay 12, after the gas-holder 2 that the gas that source of the gas 1 produces passes through is stablized, open stop valve 3, open the gas outlet that two-position three way magnetic valve 8 is connected with ball valve 9 and open ball valve, gas is discharged to atmosphere from the gas outlet of ball valve, regulate pressure-regulating valve 4, observe tensimeter 5, until obtain the voltage stabilizing gas that reaches specified testing pressure, voltage stabilizing gas enters flow regulator through threeway, adjust flux regulator, observe flowmeter 7, until obtain the voltage stabilization and current stabilization gas that reaches specified testing pressure and test flow, automatic or manual triggered time relay 12, start timing, switch on to two-position three way magnetic valve 8 simultaneously, two-position three way magnetic valve 8 switches, close the gas outlet being connected with ball valve 9, open the gas outlet being connected with vibration source 14, the voltage stabilization and current stabilization gas moment that reaches test pressure and test flow enters vibration source 14 by pipeline, vibration source 14 is obtaining after this voltage stabilization and current stabilization gas, the excited frequency producing starts to rise to test frequency from 0Hz fast, the vibration of test frequency is delivered to vibration table 15 by contiguous block 16, vibration wave evenly passes to test box 13 to surrounding centered by vibration table 15 geometric centers, realize the uniform experiment effect of vibration frequency and amplitude, get rid of the time of adjusting frequency, the time relay also accurate recording test period,
Described flow regulator is connected in parallel and is formed by 1 throttling valve 6 and one or more flow control valve 11, air intake opening, gas outlet and the T-valve 10 of flow regulator, flowmeter 7 and between main pipeline diameter be 2 times or many times of each bypass line diameter in flow regulator;
Described test box 13 has rounded 6 of being distributed on vibration source 14 vibration table around, and rubber support 17 has uniform below 6 of vibration table 15 that are contained in, and each rubber support is between two between test box;
Described contiguous block 16 is fixed on the geometric center of vibration table 15 in the mode being threaded;
Described vibration table 15 is circular.
When the utility model uses, after the gas-holder 2 that the gas that source of the gas 1 produces passes through is stablized, open stop valve 3, open the gas outlet that two-position three way magnetic valve 8 is connected with ball valve 9 and open ball valve, gas is discharged to atmosphere from the gas outlet of ball valve, regulate pressure-regulating valve 4, observe tensimeter 5, until obtain the voltage stabilizing gas that reaches specified testing pressure, the air intake opening of flow regulator, gas outlet and T-valve 10, flowmeter 7 and between main pipeline diameter be φ, in flow regulator, each bypass line diameter is that φ/2 or φ/n(n are bypass line number), it is that φ/2 or φ/n(n are bypass line number that the main pipeline that voltage stabilizing gas is φ by bore enters respectively bore) multiple bypass line, a throttling valve 6 and one or more flow control valve 11 are set respectively in bypass line, throttling valve 6 regulates large flow, flow control valve 11 regulates respectively low discharge, gas through bypass line is aggregated into the main pipeline that bore is φ again, form thus flow regulator, when operation, first close (or multiple) flow control valve 11, open gradually throttling valve 6, observe the flow value that now flowmeter 7 shows, in the time showing that flow value approaches flow of requirement value 1/2, stop regulating throttling valve 6, progressively turn-on flow rate variable valve 11, until the flow value showing is stabilized in, thereby obtain the voltage stabilization and current stabilization gas that reaches specified testing pressure and test flow, automatic or manual triggered time relay 12, start timing, switch on to two-position three way magnetic valve 8 simultaneously, two-position three way magnetic valve 8 switches, close the gas outlet being connected with ball valve 9, open the gas outlet being connected with vibration source 14, the voltage stabilization and current stabilization gas moment that reaches test pressure and test flow enters vibration source 14 by pipeline, vibration source 14 is obtaining after this voltage stabilization and current stabilization gas, the excited frequency producing starts to rise to test frequency from 0Hz fast, get rid of the time of adjusting frequency, accurate recording test period, the vibration of test frequency is delivered to vibration table 15 by contiguous block 16, vibration wave evenly passes to test box 13 to surrounding centered by vibration table 15 geometric centers, realize the uniform experiment effect of vibration frequency and amplitude, get rid of the time of adjusting frequency, the time relay also accurate recording test period.
Structurally first the utility model adopts the flow regulator of binary channels (or hyperchannel) stepless fine adjustment to carry out flow minute adjustment to voltage stabilizing air-flow, this structure mainly adopts shunting mode in parallel to change large flow into low discharge, the regime flow of realizing large flow gas by flow control valve (can the adopt needle valve) adjustment structure of (or multiple) low discharge regulates, the airshed that guarantees the air intake of pneumatic vibration platform is stablized, thereby realize the forcing frequency adjustment to shaking platform, make the excited frequency in the pneumatic vibration source exciting stable; Secondly, before the air intake of shaking platform, add the side of two-position three way magnetic valve and ball valve formation to instantaneous conversion gas circuit, other to instantaneous conversion gas circuit by time relay control gas conversion operations, make the excited frequency of vibration source only need 0.5s just to rise to and need frequency from 0Hz, realize accumulative total and the control of efficiency test time, thereby launched test with stable vibration frequency and efficiency test time control mode.Finally the vibration source with stabilized frequency is fixed on to the symcenter of the test box distributing with even circumferential, with symmetrical mechanical structure, eliminate the frequency multiplication phenomenon that each test box forcing frequency exists, realize each test box vibration frequency and amplitude even, simulate microorganism and penetrate with particles such as human body scurfs the process of medical protective garment with this under dry state environmental baseline; Compared with prior art, the utility model novel structure uniqueness, advantages of simple, gaseous tension and stability of flow, the excited frequency in the pneumatic vibration source exciting is stable, and vibration frequency stability can remain in 3%, has realized accumulative total and the control of efficiency test time, test period error can be controlled in 1s, thereby launch test with stable vibration frequency and efficiency test time control mode, test findings is accurate, easy to use, effective, be the innovation on resistance dry state bacterial penetration proving installation.
Claims (5)
1. a resistance dry state bacterial penetration tester, comprise gas-holder, flow regulator and shaking table, it is characterized in that, the gas outlet of source of the gas (1) is connected with the air intake opening of gas-holder (2), the gas outlet of gas-holder (2) connects the air intake opening of T-valve (10) through stop valve (3) and the pressure-regulating valve (4) of series connection, the gas outlet of T-valve (10) connects respectively tensimeter (5) and flow regulator, the gas outlet of flow regulator is connected with the air intake opening of two-position three way magnetic valve (8) through flowmeter (7), the gas outlet of two-position three way magnetic valve (8) is distinguished access valve (9) and is contained in the vibration source (14) on shaking table, shaking table comprises rubber support (17) and is contained in the vibration table (15) on rubber support, the geometric center of vibration table (15) is equipped with contiguous block (16), vibration source (14) is fixed on contiguous block (16), test box (13) is rounded to be distributed on vibration source (14) vibration table around, the control end of the output termination two-position three way magnetic valve (8) of the time relay (12).
2. resistance dry state bacterial penetration tester according to claim 1, it is characterized in that, described flow regulator is by 1 throttling valve (6) and one or more flow control valve (11) formation that is connected in parallel, air intake opening, gas outlet and the T-valve (10) of flow regulator, flowmeter (7) and between main pipeline diameter be 2 times or many times of each bypass line diameter in flow regulator.
3. resistance dry state bacterial penetration tester according to claim 1, it is characterized in that, described test box (13) has rounded 6 of being distributed on vibration source (14) vibration table around, rubber support (17) has uniform below 6 of vibration table (15) that are contained in, and each rubber support is between two between test box.
4. resistance dry state bacterial penetration tester according to claim 1, is characterized in that, described contiguous block (16) is fixed on the geometric center of vibration table (15) in the mode being threaded.
5. resistance dry state bacterial penetration tester according to claim 1, is characterized in that, described vibration table (15) is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040025.XU CN203672757U (en) | 2014-01-22 | 2014-01-22 | Dry-resistant bacteria penetration tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420040025.XU CN203672757U (en) | 2014-01-22 | 2014-01-22 | Dry-resistant bacteria penetration tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203672757U true CN203672757U (en) | 2014-06-25 |
Family
ID=50969039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420040025.XU Withdrawn - After Issue CN203672757U (en) | 2014-01-22 | 2014-01-22 | Dry-resistant bacteria penetration tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203672757U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728235A (en) * | 2014-01-22 | 2014-04-16 | 张卫东 | Tester for preventing dry bacteria from penetrating |
| CN105551995A (en) * | 2014-10-30 | 2016-05-04 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Inflation air channel of vacuum chambers and semiconductor processing equipment |
| CN110449980A (en) * | 2019-07-04 | 2019-11-15 | 汇专绿色工具有限公司 | A kind of lubricating system with trace amount and its output fuel-flow control method |
-
2014
- 2014-01-22 CN CN201420040025.XU patent/CN203672757U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728235A (en) * | 2014-01-22 | 2014-04-16 | 张卫东 | Tester for preventing dry bacteria from penetrating |
| CN103728235B (en) * | 2014-01-22 | 2015-10-28 | 张卫东 | Resistance dry state bacterial penetration tester |
| CN105551995A (en) * | 2014-10-30 | 2016-05-04 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Inflation air channel of vacuum chambers and semiconductor processing equipment |
| CN110449980A (en) * | 2019-07-04 | 2019-11-15 | 汇专绿色工具有限公司 | A kind of lubricating system with trace amount and its output fuel-flow control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140625 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |