CN202648980U - Automatic control type filtering absorber detection apparatus - Google Patents
Automatic control type filtering absorber detection apparatus Download PDFInfo
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- CN202648980U CN202648980U CN 201220318788 CN201220318788U CN202648980U CN 202648980 U CN202648980 U CN 202648980U CN 201220318788 CN201220318788 CN 201220318788 CN 201220318788 U CN201220318788 U CN 201220318788U CN 202648980 U CN202648980 U CN 202648980U
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Abstract
The utility model provides an automatic control type filtering absorber detection apparatus, which is manufactured through technical improvement based on the prior detection apparatus. The automatic control type filtering absorber detection apparatus comprises a gas distribution system, a detection system, a tail gas purifying system and an automatic control system, wherein the gas distribution system works mainly through a mass flowmeter and an electrothermal humidifier to more accurately control the flow and the humidity of gas to be tested, the detection system employs a double pipeline design of an adjusting pipeline and a detection pipeline to enable the detection result to be more accurate, the tail gas purifying system employs a double loop tail gas filtering absorber and is provided with a tail gas concentration alarm to enable tail gas processing to be safer and more reliable, the automatic control system mainly comprises a wind quantity control system formed by a fan, a frequency converter, a control instrument and an integral orifice plate flowmeter, and the wind quantity control system can enable the wind quantity measurement and control precision to be in an error range from -3% to +3%. The automatic control type filtering absorber detection apparatus is simple in structure, reasonable in design, easy in operation, thorough in tail gas purification, and high in detection precision, and is worthy of popularization application.
Description
Technical field
The utility model relates to the metrological testing technology field, specifically a kind of autocontrol gas-particulate filter pick-up unit.
Background technology
Generally, gas-particulate filter all will be tested detection before coming into operation, to verify its strainability.Wherein, guard time is an of paramount importance performance in the many performances of gas-particulate filter.Existing for detection of the device age of gas-particulate filter guard time all older, every checkout equipment is relatively backward, as: the distribution of existing filter pick-up unit gas distributing system and humidification adopt manually control, the distribution flow monitoring uses the self-control capillary flowmeter, humidification adopts manual steam humidification, humidity measurement adopts wet-and-dry bulb thermometer, and distribution flow measuring and controlling precision and humidity observing and controlling precision be low being ± 5%; Hand adjustment valve regulated flow is adopted in the air quantity control of test macro, and orifice flowmeter and inclination microbarograph are used in flow metering, have the large problem of artificial reading error, and the observing and controlling precision is ± 8%; Installing pipes, uttering long and high-pitched sounds and jitter phenomenon can appear in (being after valve turns down) under little air quantity; Sample flow uses the self-control capillary flowmeter, and measuring accuracy is low and be ± 5%; Tail gas absorbs and uses single gas-particulate filter, the problem that exists exhaust emissions to exceed standard, and whole device adopts manual operation, and complex operation needs three experimenters.
Summary of the invention
The utility model is that existing device for detection of the gas-particulate filter guard time is carried out technical renovation, thereby a kind of brand-new autocontrol gas-particulate filter pick-up unit is provided.
The utility model is achieved through the following technical solutions:
A kind of autocontrol gas-particulate filter pick-up unit, comprise the gas mixer that is connected with electric heating humidifier, the inlet end of gas mixer is provided with air in and the import of test gas, all be respectively equipped with mass flowmeter in air in and the import of test gas, the endpiece of gas mixer connects the inlet end of the first main line, and the first main line is provided with humidity sensor and the first sampling pipe; The endpiece of the first main line is divided into two-way, one the tunnel connects the inlet end of debugging pipeline, the inlet end that another road connects signal piping, the debugging pipeline is provided with debugging gas-particulate filter and debugging valve, signal piping is provided with and detects gas-particulate filter and detect valve, and the endpiece of debugging pipeline is connected endpiece and is crossed and connect the inlet end of the second main line with signal piping; Be provided with successively the second sampling pipe and Integrative orifice meter on the second main line; The endpiece of the second main line is divided into two-way, one the tunnel connects the inlet end of the first tail gas suction line, the inlet end that another road connects the second tail gas suction line, all be respectively equipped with tail gas filtering absorber and motorized valve on the first tail gas suction line and the second tail gas suction line, the endpiece of the first tail gas suction line be connected the endpiece of tail gas suction line and cross and connect the inlet end of the 3rd main line; The 3rd main line is provided with the concentration alarm, and the concentration alarm is connected with the first control instrument, and the first control instrument is connected with two motorized valves again; The 3rd main line endpiece is provided with blower fan, and blower fan connects frequency converter, and frequency converter connects the second control instrument, and the second control instrument is connected with Integrative orifice meter again.
Wherein, gas mixer, electric heating humidifier etc. have formed the gas distributing system of this device; Debugging pipeline, debugging gas-particulate filter, signal piping, detection gas-particulate filter etc. have formed the detection system of this device; The first tail gas suction line, the second tail gas suction line, tail gas filtering absorber, motorized valve etc. have formed the exhaust gas purification system of this device; Integrative orifice meter, frequency converter, the first control instrument, the second control instrument, concentration alarm etc. have formed the automatic control system of this device.
Because test gas all is toxic gas, so when this device is worked, starting all the time the blower fan of the 3rd main line endpiece, make whole pipeline all be in the negative pressure suction type state, to prevent the leakage of test gas.
At first, this device is before passing into air and test gas, debugging valve opening on the debugging pipeline, detection valve closing on the signal piping, that is: the debugging pipeline is in on-state, the debugging gas-particulate filter carries out debugging work to test gas, and signal piping is in closed condition, detects gas-particulate filter and is in first off working state; Simultaneously, only open the electric control valve of the first tail gas suction line or second one of them pipeline of tail gas suction line, that is: only have a tail gas suction line to be in on-state, tail gas filtering absorber on it is used for absorption test tail gas, another tail gas suction line is in closed condition, is the spare duct of absorption test tail gas.
Then, air and test gas be injected into by air in and the import of test gas respectively (air is in order to the concentration of adjusting test gas in the gas mixer, make test gas concentration reach the relevant regulations value), simultaneously electric heating humidifier work, test gas in the gas mixer is added wet process, with the humidity of adjusting test gas.Humidity sensor on the first main line carries out Humidity Detection to test gas, the first sampling pipe extracts test gas and carries out the detection of test gas concentration, and the concentration of test gas can be regulated automatically by the mass flowmeter in air in and the import of test gas.Can be regulated the air quantity in the pipeline by the closed-circuit system that Integrative orifice meter, blower fan, frequency converter and control instrument form, realize the automatic control of flow.
At last, when the concentration of the test gas in this device pipeline, humidity etc. all reach relevant regulations value in " GJB564.2-88 gas-particulate filter performance test method ", then can detect test to detecting gas-particulate filter.At this moment, the debugging valve on the enable debugs pipeline, simultaneously detection valve and the timing on the open detection pipeline begins, and test gas enters signal piping, and during by the detection gas-particulate filter, the detected absorber that filters of test gas absorbs fully; When detecting gas-particulate filter after work a period of time, the ability of its absorption test gas weakens gradually, also increase gradually since 0 by the test gas concentration that detects gas-particulate filter, at this moment, extract the test gas by detecting gas-particulate filter and detect its concentration by the second sampling pipe on the second main line, when test gas concentration increases to " GJB564.2-88 gas-particulate filter performance test method " middle relevant regulations value, just think that this detection gas-particulate filter lost efficacy, close immediately this moment and detect valve and stop timing.In this process, from the open detection valve to closing the guard time that is during this period of time this detection gas-particulate filter that detects valve.
For exhaust gas purification system, only has one road tail gas suction line and corresponding tail gas filtering absorber work when testing at ordinary times, after the tail gas filtering absorber on this tail gas suction line penetrates (namely this tail gas filtering absorber lost efficacy), when tail gas concentration reaches setting, the concentration alarm is understood automatic alarm and is cut off current tail gas suction line by the first control instrument driving motorized valve, open another tail gas suction line, continue the harmful gas in the absorption tail gas, with warranty test personnel's safety and Health, eliminate the pollution to environment.After the off-test, need to change the tail gas filtering absorber that had lost efficacy.
Further, on the debugging pipeline at debugging gas-particulate filter two ends, respectively be provided with a debugging valve.Can further strengthen like this tightness of debugging pipeline, prevent from containing test gas and reveal.
The improvement of the utility model device is:
The distribution of gas distributing system and humidification have adopted automatic control, wherein: the control of distribution service property (quality) flowmeter, distribution flow measuring and controlling precision satisfies ± 2%, and humidification adopts electric heating humidifier to carry out, and humidity measurement adopts humidity sensor, and humidity observing and controlling precision satisfies ± 4%; Variable frequency regulating speed control is adopted in the air quantity control of detection system, is comprised of blower fan, frequency converter, control instrument, Integrative orifice meter, and air quantity shows the employing Integrative orifice meter, and satisfying air quantity observing and controlling precision is ± 3%; This device has been eliminated pipeline (being after valve turns down) under little air quantity and the problem of uttering long and high-pitched sounds and shaking occurred; Air quantity control, distribution control, humidity control have all realized closed-loop control, tail gas absorbs and uses two-circuit tail gas filtering absorber and tail gas concentration alarm is set, the concentration alarm is connected with motorized valve by control instrument, conveniently switched tail gas filter absorber, make exhaust emissions up to standard, whole plant automation degree is higher, only needs two just easily service tests of experimenter.
The utility model apparatus structure is simple, reasonable in design, processing ease, tail gas clean-up are abundant, and this pick-up unit adopts flow, Humidity Automatic Control technology, control to detect the quality of monitoring test product by the humidity of its high-precision flow control, high accuracy, provide the detection technique basis for producing Chemical Agent Resistant Material.In addition, this pick-up unit has improved detection efficiency by adopting advanced automatic technology, and in time, finish the product barrier propterty accurately and detect guarantee is provided, certain facilitation has been played in the development that promotes simultaneously the chemical defence new product.
Description of drawings
Fig. 1 is system architecture synoptic diagram of the present utility model.
Among the figure: the 1-gas mixer, the 2-electric heating humidifier, the 3-air in, the import of 4-test gas, the 5-mass flowmeter, 6-the first main line, the 7-humidity sensor, 8-the first sampling pipe, 9-debugs pipeline, the 10-signal piping, 11-debugs gas-particulate filter, 12-debugs valve, 13-detects gas-particulate filter, 14-detects valve, 15-the second main line, 16-the second sampling pipe, the 17-Integrative orifice meter, 18-the first tail gas suction line, 19-the second tail gas suction line, 20-tail gas filtering absorber, the 21-motorized valve, 22-the 3rd main line, 23-concentration alarm, 24-the first control instrument, the 25-blower fan, the 26-frequency converter, 27-the second control instrument.
Embodiment
Below in conjunction with accompanying drawing the utility model is done to describe further:
As shown in Figure 1, a kind of autocontrol gas-particulate filter pick-up unit, comprise the gas mixer 1 that is connected with electric heating humidifier 2, the inlet end of gas mixer 1 is provided with air in 3 and test gas import 4, all be respectively equipped with mass flowmeter 5 in air in 3 and the test gas import 4, the endpiece of gas mixer 1 connects the inlet end of the first main line 6, and the first main line 6 is provided with humidity sensor 7 and the first sampling pipe 8; The endpiece of the first main line 6 is divided into two-way, one the tunnel connects the inlet end of debugging pipeline 9, the inlet end that another road connects signal piping 10, debugging pipeline 9 is provided with debugging gas-particulate filter 11 and debugging valve 12, signal piping 10 is provided with and detects gas-particulate filter 13 and detect valve 14, and the endpiece that the endpiece of debugging pipeline 9 is connected with signal piping crosses and connects the inlet end of the second main line 15; Be provided with successively the second sampling pipe 16 and Integrative orifice meter 17 on the second main line 15; The endpiece of the second main line 15 is divided into two-way, one the tunnel connects the inlet end of the first tail gas suction line 18, the inlet end that another road connects the second tail gas suction line 19, the endpiece that all is respectively equipped with tail gas filtering absorber 20 and motorized valve 21, the first tail gas suction line 18 on the first tail gas suction line 18 and the second tail gas suction line 19 be connected the endpiece of tail gas suction line 19 and cross and connect the inlet end of the 3rd main line 22; The 3rd main line 22 is provided with concentration alarm 23, concentration alarm 23 is connected with the first control instrument 24, the first control instrument 24 is connected with two motorized valves 21 again, the 3rd main line 22 endpiece are provided with blower fan 25, blower fan 25 connects frequency converter 26, frequency converter 26 connects the second control instrument 27, the second control instruments 27 and is connected with Integrative orifice meter 17 again.
During implementation, on the debugging pipeline 9 at debugging gas-particulate filter 11 two ends, respectively be provided with a debugging valve 14, further strengthen the tightness of debugging pipeline 9, prevent the test gas leakage.
Claims (2)
1. autocontrol gas-particulate filter pick-up unit, it is characterized in that: comprise the gas mixer (1) that is connected with electric heating humidifier (2), the inlet end of gas mixer (1) is provided with air in (3) and test gas import (4), all be respectively equipped with mass flowmeter (5) in air in (3) and the test gas import (4), the endpiece of gas mixer (1) connects the inlet end of the first main line (6), and the first main line (6) is provided with humidity sensor (7) and the first sampling pipe (8); The endpiece of the first main line (6) is divided into two-way, one the tunnel connects the inlet end of debugging pipeline (9), the inlet end that another road connects signal piping (10), debugging pipeline (9) is provided with debugging gas-particulate filter (11) and debugging valve (12), signal piping (10) is provided with and detects gas-particulate filter (13) and detect valve (14), and the endpiece of debugging pipeline (9) is connected 10 with signal piping) endpiece cross and connect the inlet end of the second main line (15); Be provided with successively the second sampling pipe (16) and Integrative orifice meter (17) on the second main line (15); The endpiece of the second main line (15) is divided into two-way, one tunnel inlet end, another road that connects the first tail gas suction line (18) connects the inlet end of the second tail gas suction line (19), all be respectively equipped with tail gas filtering absorber (20) and motorized valve (21) on the first tail gas suction line (18) and the second tail gas suction line (19), the endpiece of the first tail gas suction line (18) be connected the endpiece of tail gas suction line (19) and cross and connect the inlet end of the 3rd main line (22); The 3rd main line (22) is provided with concentration alarm (23), and concentration alarm (23) is connected with the first control instrument (24), and the first control instrument (24) is connected with two motorized valves (21) again; The 3rd main line (22) endpiece is provided with blower fan (25), and blower fan (25) connects frequency converter (26), and frequency converter (26) connects the second control instrument (27), and the second control instrument (27) is connected with Integrative orifice meter (17) again.
2. autocontrol gas-particulate filter pick-up unit according to claim 1 is characterized in that: respectively be provided with a debugging valve (14) on the debugging pipeline (9) at debugging gas-particulate filter (11) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220318788 CN202648980U (en) | 2012-07-04 | 2012-07-04 | Automatic control type filtering absorber detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220318788 CN202648980U (en) | 2012-07-04 | 2012-07-04 | Automatic control type filtering absorber detection apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN202648980U true CN202648980U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220318788 Expired - Lifetime CN202648980U (en) | 2012-07-04 | 2012-07-04 | Automatic control type filtering absorber detection apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136508A (en) * | 2015-09-30 | 2015-12-09 | 武汉辰龙精密仪器有限公司 | DMMP vapor protective dosage test system and testing method thereof |
| CN108089503A (en) * | 2018-01-12 | 2018-05-29 | 河南正清环境科技有限公司 | A kind of people's air defense gas-particulate filter examines operation management system |
-
2012
- 2012-07-04 CN CN 201220318788 patent/CN202648980U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136508A (en) * | 2015-09-30 | 2015-12-09 | 武汉辰龙精密仪器有限公司 | DMMP vapor protective dosage test system and testing method thereof |
| CN105136508B (en) * | 2015-09-30 | 2018-09-14 | 武汉辰龙精密仪器有限公司 | DMMP vapor protection dosage tests system and its test method |
| CN108089503A (en) * | 2018-01-12 | 2018-05-29 | 河南正清环境科技有限公司 | A kind of people's air defense gas-particulate filter examines operation management system |
| CN108089503B (en) * | 2018-01-12 | 2024-05-14 | 河南正清环境科技有限公司 | Inspection operation and maintenance management system for civil air defense filtering absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |