CN203231899U - Filter field test bench applied to general ventilation - Google Patents
Filter field test bench applied to general ventilation Download PDFInfo
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- CN203231899U CN203231899U CN2013202176358U CN201320217635U CN203231899U CN 203231899 U CN203231899 U CN 203231899U CN 2013202176358 U CN2013202176358 U CN 2013202176358U CN 201320217635 U CN201320217635 U CN 201320217635U CN 203231899 U CN203231899 U CN 203231899U
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Abstract
The utility model discloses a filter field test bench applied to general ventilation. The filter field test bench comprises a to-be-tested filter, an upstream sampling probe, a downstream sampling probe, a three-way valve, a vacuum pump, a flow meter, a particle counter and a computer control end. The upstream sampling probe is successively connected with an upstream on-off valve and the inlet end of the three-way valve through pipelines. The downstream sampling probe is successively connected with a downstream on-off valve and the inlet end of the three-way valve through pipelines. One outlet end of the three-way valve is successively connected with the vacuum pump and the flow meter. The other outlet end of the three-way valve is successively connected with the particle counter and the computer control end. The particle counter measures the number of particles in a sampled air flow flowing into the particle counter and outputs a measurement result to the computer control end, so as to calculate the filter efficiency. The filter field test bench applied to general ventilation automatically completes air sampling and detection of upstream and downstream of the filter and filter efficiency calculation, has the advantage of simple operation, and has accurate test data.
Description
Technical field
The utility model relates to a kind of general ventilation filtrator on-the-spot test platform.
Background technology
General ventilation is to carry out according to its test result in the ASHRAE laboratory with the efficient classification of filtrator, but because the difference of actual service conditions causes general the ventilation often all not reach the test performance in ASHRAE laboratory in actual use with filtrator.Therefore, the user need understand general ventilation with the level of efficiency of the on-the-spot operation of filtrator, will carry out efficiency test to the filtrator in using.
Present general method of testing is: the hand-held corpuscular counter of operating personnel is gathered population in the upstream and downstream of filtrator respectively, calculates the filtration efficiency of filtrator then.But there is following shortcoming in this kind method:
1. want to sample according to the requirement of ASHRAE Guideline 26-2008 fully, operating personnel need repeatedly pass in and out the upstream and downstream of fillter section, operate very inconvenient;
2. flow through the air-flow concentration of filtrator when big, filtrator upstream and downstream particle concentration exceeds the corpuscular counter count limit, causes the result inaccurate;
3. because there is turbulent flow in air-flow in the air-conditioning box, can not guarantee that the particle concentration of sampled point is representative, so will guarantee accuracy, just require to gather the particle concentration values at a lot of points, calculating mean value then, test and data processing work amount are all bigger;
4. because the uncertainty of air-conditioning box actual motion wind speed, can't guarantee during test that corpuscular counter thief hatch wind speed is consistent with the air-conditioning box sectional wind velocity, can not guarantee that namely when corpuscular counter carries out the particle collection be the isokinetic sampling process, must cause the result of particle counting inaccurate like this.
When 5. sampling, operating personnel are in the air-flow, air-flow is produced disturb on the one hand, increase particle concentration in the air-flow on the other hand, cause measurement result to produce deviation.
Summary of the invention
In order to overcome above-mentioned defective, the utility model provides a kind of general ventilation with filtrator on-the-spot test platform, finishes the calculating of the gas sampling of filtrator upstream and downstream and detection and filter clogging effect automatically, and is not only simple to operate, and test data is more accurate.
The utility model for the technical scheme that solves its technical matters and adopt is: a kind of general ventilation is with filtrator on-the-spot test platform, comprise filtrator to be tested, described online efficiency test device also comprises the sampled upstream probe of the upstream of being located at described filtrator to be tested, be located at the sampled downstream probe in the downstream of described filtrator to be tested, T-valve, vacuum pump, flowmeter, corpuscular counter and computer control end, described sampled upstream probe is communicated with the entrance point of upstream on-off valve and T-valve successively by pipeline, described sampled downstream probe is communicated with the entrance point of downstream on-off valve and T-valve successively by pipeline, one of them endpiece of described T-valve is communicated with vacuum pump and flowmeter successively, and another endpiece of described T-valve is communicated with corpuscular counter and computer control end successively; Described vacuum pump is controlled the air-flow in the pipeline of described online efficiency test device, and described flowmeter is controlled the flow size of the air-flow in the pipeline of described online efficiency test device; One of them is in conducting state described upstream on-off valve and downstream on-off valve, described corpuscular counter measure sampled upstream probe of flowing in it respectively with sampled downstream pop one's head in the air-flow of one of them sampling population and measurement result exported to the computer control end, the computer control end receive respectively the sampled upstream of particle counter measuring probe with the air-flow sampled downstream probe sampling in the particle measurement result and calculate filter clogging effect according to this result.
As further improvement of the utility model, also be provided with a diluter, the entrance point of this diluter is communicated with described upstream on-off valve and downstream on-off valve respectively, the endpiece of this diluter is communicated with the entrance point of described three-way pipe, between the entrance point of this diluter and upstream on-off valve and downstream on-off valve, be provided with the diluter on-off valve, other is provided with diluter bypass on-off valve, this diluter bypass on-off valve one end is communicated in respectively between described diluter on-off valve and upstream on-off valve and the downstream on-off valve by pipeline, and this diluter bypass on-off valve other end is communicated between the entrance point of the endpiece of described diluter and T-valve.
As further improvement of the utility model, also comprise for measurement and flow through the gas velocity of filtrator upstream and downstream air-flow and the air data multimeter of gas-flow resistance, this air data multimeter is transferred to the computer control end with test result, and the computer control end is reconciled the flow of flowmeter according to the test result calculations that receives and alert.
As further improvement of the utility model, also be provided with the Hygrothermograph that flows through the temperature and humidity of the air-flow in filtrator upstream, downstream and particle calculator place environment for measurement.
As further improvement of the utility model, below described sampled upstream probe and sampled downstream probe, be respectively equipped with to support and use support.
The beneficial effects of the utility model are:
1. in filtrator to be measured upstream and downstream sampling probe is installed respectively, and is realized the switching of two sampling probes.
2. diluter and corpuscular counter are used, and also judge whether to use diluter automatically with the control of computer control end, make the on-the-spot test more convenient operation, data are more accurate.
3. can finish wind speed test, and calculate parameters such as mean wind speed, unevenness, standard deviation automatically, and select automatically can be as the position of representative sample point.
4. can guarantee isokinetic sampling fully.Earlier calculate mean wind speed automatically, calculate the flow that satisfies the needed pump of isokinetic sampling then, make whole test process satisfy the requirement of isokinetic sampling by regulating the flowmeter switch.
5. this device is in strict accordance with requirement and the measuring process of ASHRAE Guideline 26-2008, carry out the efficiency test of filtrator, not only improved the standardization of test, simplified simultaneously the workload that data are handled greatly, generally when test is finished, can provide test report in the scene, improve the efficient of test job greatly.
Description of drawings
Fig. 1 is the utility model structural representation.
By reference to the accompanying drawings, make the following instructions:
1---filtrator 2 to be tested---sampled upstream probe
3---sampled downstream probe 4---T-valve
5---vacuum pump 6---flowmeter
7---corpuscular counter 8---computer control end
9---upstream on-off valve 10---downstream on-off valve
11---diluter 12---diluter on-off valve
13---diluter bypass on-off valve 14---air data multimeter
15---Hygrothermograph 16---support
Embodiment
By reference to the accompanying drawings; the utility model is elaborated; but protection domain of the present utility model is not limited to following embodiment, and namely the simple equivalent of being done with the utility model claim and description in every case changes and modifies, and all still belongs within the utility model patent covering scope.
As shown in Figure 1, a kind of general ventilation filtrator on-the-spot test platform, comprise filtrator 1 to be tested, be located at the sampled upstream probe 2 of the upstream of described filtrator to be tested, be located at the sampled downstream probe 3 in the downstream of described filtrator to be tested, T-valve 4, vacuum pump 5, flowmeter 6, corpuscular counter 7 and computer control end 8, described sampled upstream probe is communicated with the entrance point of upstream on-off valve 9 and T-valve successively by pipeline, described sampled downstream probe is communicated with the entrance point of downstream on-off valve 10 and T-valve successively by pipeline, one of them endpiece of described T-valve is communicated with vacuum pump and flowmeter successively, and another endpiece of described T-valve is communicated with corpuscular counter and computer control end successively; Described vacuum pump is controlled the air-flow in the pipeline of described online efficiency test device, and described flowmeter is controlled the flow size of the air-flow in the pipeline of described online efficiency test device; One of them is in conducting state described upstream on-off valve and downstream on-off valve, described corpuscular counter measure sampled upstream probe of flowing in it respectively with sampled downstream pop one's head in the air-flow of one of them sampling population and measurement result exported to the computer control end, the computer control end receive respectively the sampled upstream of particle counter measuring probe with the air-flow sampled downstream probe sampling in the particle measurement result and calculate filter clogging effect according to this result.
During work, select to realize the gas sample in upstream or the downstream of filtrator by the break-make of control upstream on-off valve and downstream on-off valve, when sampling, vacuum pump and flowmeter can be controlled the flow of sampling air flow, corpuscular counter flows to the computer control end for the population of the sampling air flow of measuring the filtrator upstream and downstream respectively and measurement result, and the computer control end calculates filter clogging effect according to the test result of corpuscular counter by following formula: filter clogging effect to be measured=1-sampled downstream population/sampled upstream population * 100%.
Preferably, should generally ventilate and also be provided with a diluter 11 with filtrator on-the-spot test platform, the entrance point of this diluter is communicated with described upstream on-off valve and downstream on-off valve respectively, the endpiece of this diluter is communicated with the entrance point of described three-way pipe, between the entrance point of this diluter and upstream on-off valve and downstream on-off valve, be provided with diluter on-off valve 12, other is provided with diluter bypass on-off valve 13, this diluter bypass on-off valve one end is communicated in respectively between described diluter on-off valve and upstream on-off valve and the downstream on-off valve by pipeline, and this diluter bypass on-off valve other end is communicated between the entrance point of the endpiece of described diluter and T-valve.Like this, in the upstream of the filtrator of actual measurement or the population in downstream may surpass setting the time, can open the diluter on-off valve, close diluter bypass on-off valve, flow into T-valve again after the air-flow that sampled upstream probe or sampled downstream probe are gathered dilutes respectively and corpuscular counter is measured.When not needing to use diluter, can select to close the diluter on-off valve, open diluter bypass on-off valve, thereby realize on the filtrator/no dilution sampling and the measurement of the air-flow that the sampled downstream probe is gathered.
Preferably, should generally ventilate also comprise for measurement with filtrator on-the-spot test platform and flow through the gas velocity of filtrator upstream and downstream air-flow and the air data multimeter 14 of gas-flow resistance, this air data multimeter is transferred to the computer control end with test result, the computer control end is reconciled the flow of flowmeter according to the test result calculations that receives and alert, thereby the gas velocity that can realize entering sampling probe is identical with the gas velocity that actual flow is crossed filtrator, be isokinetic sampling, to improve precision of test result.
Preferably, this general ventilation also is provided with the Hygrothermograph 15 that flows through the temperature and humidity of the air-flow in filtrator upstream, downstream and particle calculator place environment for measurement with filtrator on-the-spot test platform.
Preferably, this general ventilation is respectively equipped with below described sampled upstream probe and sampled downstream probe with filtrator on-the-spot test platform and supports with support 16.
Claims (5)
1. general a ventilation used filtrator on-the-spot test platform, comprise filtrator to be tested (1), it is characterized in that: described online efficiency test device also comprises the sampled upstream probe (2) of the upstream of being located at described filtrator to be tested, be located at the sampled downstream probe (3) in the downstream of described filtrator to be tested, T-valve (4), vacuum pump (5), flowmeter (6), corpuscular counter (7) and computer control end (8), described sampled upstream probe is communicated with the entrance point of upstream on-off valve (9) and T-valve successively by pipeline, described sampled downstream probe is communicated with the entrance point of downstream on-off valve (10) and T-valve successively by pipeline, one of them endpiece of described T-valve is communicated with vacuum pump and flowmeter successively, and another endpiece of described T-valve is communicated with corpuscular counter and computer control end successively; Described vacuum pump is controlled the air-flow in the pipeline of described online efficiency test device, and described flowmeter is controlled the flow size of the air-flow in the pipeline of described online efficiency test device; One of them is in conducting state described upstream on-off valve and downstream on-off valve, described corpuscular counter measure sampled upstream probe of flowing in it respectively with sampled downstream pop one's head in the air-flow of one of them sampling population and measurement result exported to the computer control end, the computer control end receive respectively the sampled upstream of particle counter measuring probe with the air-flow sampled downstream probe sampling in the particle measurement result and calculate filter clogging effect according to this result.
2. general ventilation according to claim 1 is with filtrator on-the-spot test platform, it is characterized in that: also be provided with a diluter (11), the entrance point of this diluter is communicated with described upstream on-off valve and downstream on-off valve respectively, the endpiece of this diluter is communicated with the entrance point of described three-way pipe, between the entrance point of this diluter and upstream on-off valve and downstream on-off valve, be provided with diluter on-off valve (12), other is provided with diluter bypass on-off valve (13), this diluter bypass on-off valve one end is communicated in respectively between described diluter on-off valve and upstream on-off valve and the downstream on-off valve by pipeline, and this diluter bypass on-off valve other end is communicated between the entrance point of the endpiece of described diluter and T-valve.
3. general ventilation according to claim 1 and 2 is with filtrator on-the-spot test platform, it is characterized in that: also comprise for measurement and flow through the gas velocity of filtrator upstream and downstream air-flow and the air data multimeter (14) of gas-flow resistance, this air data multimeter is transferred to the computer control end with test result, and the computer control end is reconciled the flow of flowmeter according to the test result calculations that receives and alert.
4. general ventilation according to claim 3 is characterized in that with filtrator on-the-spot test platform: also be provided with the Hygrothermograph (15) that flows through the temperature and humidity of the air-flow in filtrator upstream, downstream and particle calculator place environment for measurement.
5. general ventilation according to claim 1 and 2 is characterized in that: be respectively equipped with below described sampled upstream probe and sampled downstream probe and support with support (16) with filtrator on-the-spot test platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202176358U CN203231899U (en) | 2013-04-25 | 2013-04-25 | Filter field test bench applied to general ventilation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202176358U CN203231899U (en) | 2013-04-25 | 2013-04-25 | Filter field test bench applied to general ventilation |
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| CN203231899U true CN203231899U (en) | 2013-10-09 |
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| CN2013202176358U Expired - Lifetime CN203231899U (en) | 2013-04-25 | 2013-04-25 | Filter field test bench applied to general ventilation |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592147A (en) * | 2013-11-08 | 2014-02-19 | 南京工业大学 | Performance test system for air filter for general ventilation |
| CN109406133A (en) * | 2018-12-11 | 2019-03-01 | 九川真空科技成都有限公司 | Particle falls off the method for quantity during a kind of detection valve working |
| CN113176191A (en) * | 2021-05-06 | 2021-07-27 | 国电环境保护研究院有限公司 | Gas turbine air inlet system filtering efficiency online testing system and testing method |
| CN113237814A (en) * | 2021-05-10 | 2021-08-10 | 华电电力科学研究院有限公司 | Gas turbine air inlet system filtering performance online monitoring system and method |
| CN113348325A (en) * | 2019-02-05 | 2021-09-03 | 霍顿集团有限公司 | Cooking pollutant control method, device and system |
-
2013
- 2013-04-25 CN CN2013202176358U patent/CN203231899U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592147A (en) * | 2013-11-08 | 2014-02-19 | 南京工业大学 | Performance test system for air filter for general ventilation |
| CN103592147B (en) * | 2013-11-08 | 2016-02-10 | 南京工业大学 | Performance test system for air filter for general ventilation |
| CN109406133A (en) * | 2018-12-11 | 2019-03-01 | 九川真空科技成都有限公司 | Particle falls off the method for quantity during a kind of detection valve working |
| CN113348325A (en) * | 2019-02-05 | 2021-09-03 | 霍顿集团有限公司 | Cooking pollutant control method, device and system |
| US20220082267A1 (en) * | 2019-02-05 | 2022-03-17 | Oy Halton Group Ltd. | Cooking Pollutant Control Methods Devices and Systems |
| CN113176191A (en) * | 2021-05-06 | 2021-07-27 | 国电环境保护研究院有限公司 | Gas turbine air inlet system filtering efficiency online testing system and testing method |
| CN113176191B (en) * | 2021-05-06 | 2022-12-20 | 国电环境保护研究院有限公司 | Gas turbine air inlet system filtering efficiency online testing system and testing method |
| CN113237814A (en) * | 2021-05-10 | 2021-08-10 | 华电电力科学研究院有限公司 | Gas turbine air inlet system filtering performance online monitoring system and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131009 |
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| CX01 | Expiry of patent term |