技术领域technical field
本发明涉及气体检测领域，具体涉及一种具有过滤功能的多级级联气路系统。The invention relates to the field of gas detection, in particular to a multi-stage cascade gas path system with filtering function.
背景技术Background technique
煤矿瓦斯管道抽放浓度监测、城市下水道、化粪池、沼气池、垃圾处理厂等场所，需要监测有毒有害、可燃类等危险气体，如甲烷、一氧化碳、二氧化碳、硫化氢等。本发明解决抽取式管路中粉尘、水汽、气溶胶等悬浮颗粒进入测量气室，造成测量误差变大甚至失效难题。The concentration monitoring of coal mine gas pipeline drainage, urban sewers, septic tanks, biogas digesters, garbage treatment plants and other places need to monitor toxic, harmful, combustible and other dangerous gases, such as methane, carbon monoxide, carbon dioxide, hydrogen sulfide, etc. The invention solves the problem that suspended particles such as dust, water vapor, and aerosol in the extractable pipeline enter the measurement gas chamber, causing large measurement errors or even failure.
因此，为解决以上问题，需要一种具有过滤功能的多级级联气路系统，能够方便按需扩展监测气体种类，并且方便拆卸零部件，结构紧凑，易于多种场合配套使用。Therefore, in order to solve the above problems, a multi-stage cascaded gas circuit system with filtering function is needed, which can easily expand the types of monitored gases as needed, and facilitate the disassembly of parts. It has a compact structure and is easy to use in various occasions.
发明内容Contents of the invention
有鉴于此，本发明的目的是克服现有技术中的缺陷，提供具有过滤功能的多级级联气路系统，能够。In view of this, the object of the present invention is to overcome the defects in the prior art, and provide a multi-stage cascaded gas circuit system with filtering function, which can.
本发明的具有过滤功能的多级级联气路系统，沿样气流动方向依次包括过滤装置、抽气泵和由多个气室串联形成的级联气室组；单个气室内均设置有用于检测的传感器，所述多级联气路系统的进气口和出气口分别位于过滤装置和尾端气室。The multi-stage cascaded air circuit system with filtering function of the present invention includes a filter device, an air pump, and a cascaded air chamber group formed by a plurality of air chambers in series along the flow direction of the sample gas; The sensor, the air inlet and outlet of the multi-cascade gas circuit system are respectively located in the filter device and the tail end air chamber.
进一步，所述过滤装置包括前后设置的粗过滤器和精过滤器，所述粗过滤器内设置有用于粗过滤的SiC微孔过滤元件，所述精过滤器内设置有用于精密过滤的PTFE多孔膜片。Further, the filter device includes a coarse filter and a fine filter arranged before and after, the SiC microporous filter element for coarse filtration is arranged in the coarse filter, and the porous PTFE filter element for fine filtration is arranged in the fine filter. Diaphragm.
进一步，所述抽气泵还设置有用于形成快速置换回路的置换出气口。Further, the air suction pump is also provided with a replacement air outlet for forming a rapid replacement circuit.
进一步，所述单个气室包括顶端开口的圆柱壳体、设置于圆柱壳体内的传感器和用于封堵顶端开口并压紧固定传感器的压盖，所述压盖可拆卸式固定于圆柱壳体顶端，所述传感器与圆柱壳体内腔底面之间形成气室内腔，所述气室内腔连通设置有进气嘴和出气嘴。Further, the single air chamber includes a cylindrical shell with an open top, a sensor arranged in the cylindrical shell, and a gland for sealing the top opening and pressing and fixing the sensor, and the gland is detachably fixed to the cylindrical shell At the top, an air chamber is formed between the sensor and the bottom surface of the inner chamber of the cylindrical shell, and the air chamber is communicated with an air inlet nozzle and an air outlet nozzle.
进一步，所述气室内腔为圆柱腔，所述进气嘴和出气嘴均为中心轴线与圆柱腔断面所形成的圆相切的直管段，该直管段位于圆柱腔的底部。Further, the air chamber is a cylindrical cavity, the air inlet nozzle and the air outlet nozzle are straight pipe sections tangent to the circle formed by the central axis and the section of the cylindrical chamber, and the straight pipe section is located at the bottom of the cylindrical chamber.
进一步，还包括用于控制抽气泵工作和处理各传感器采集数据的控制器，所述控制器的输出端与抽气泵的控制输入端连接，各传感器的输出端与控制器的输入端连接。Further, it also includes a controller for controlling the operation of the air pump and processing the data collected by each sensor, the output end of the controller is connected to the control input end of the air pump, and the output end of each sensor is connected to the input end of the controller.
进一步，所述控制器还设置有远程通讯模块，所述远程通讯模块用于远程控制控制器。Further, the controller is also provided with a remote communication module, and the remote communication module is used to remotely control the controller.
进一步，所述粗过滤器和精过滤器均设置有放水口。Further, both the coarse filter and the fine filter are provided with water outlets.
进一步，所述圆柱壳体底部固定设置有气室安装架，所述气室安装架为L形安装板，L形安装板的一侧板与圆柱壳体底面贴附固定，另一侧板设置有连接孔。Further, the bottom of the cylindrical shell is fixed with an air chamber mounting frame, the air chamber mounting frame is an L-shaped mounting plate, one side plate of the L-shaped mounting plate is attached and fixed to the bottom surface of the cylindrical shell, and the other side plate is set There are connection holes.
本发明的有益效果是：本发明公开的一种具有过滤功能的多级级联气路系统，通过在抽气泵的后端设置多个串联的气室，且每个气室均设置有用于检测不同成分和浓度的传感器，方便按需扩展监测气体种类，结构紧凑，易于多种场合配套使用，适用范围广。The beneficial effects of the present invention are: a multi-stage cascaded air circuit system with filtering function disclosed by the present invention, by setting a plurality of series-connected air chambers at the rear end of the air pump, and each air chamber is provided with a device for detecting Sensors with different components and concentrations are convenient for expanding the types of monitored gases as needed. The structure is compact, easy to be used in multiple occasions, and has a wide range of applications.
附图说明Description of drawings
下面结合附图和实施例对本发明作进一步描述：The present invention will be further described below in conjunction with accompanying drawing and embodiment:
图1为本发明的结构示意图；Fig. 1 is a structural representation of the present invention;
图2为本发明中气室的结构示意图；Fig. 2 is the structural representation of air chamber in the present invention;
图3为本发明中气室局部剖视图。Fig. 3 is a partial cross-sectional view of the air chamber in the present invention.
具体实施方式Detailed ways
图1为本发明的结构示意图，图2为本发明中气室的结构示意图，图3为本发明中气室局部剖视图，如图所示，本实施例中的具有过滤功能的多级级联气路系统，沿样气流动方向依次包括过滤装置、抽气泵1和由多个气室2串联形成的级联气室组；单个气室2内均设置有用于检测的传感器3，所述多级联气路系统的进气口和出气口分别位于过滤装置和尾端气室；所述过滤装置用于待检测样气进行过滤，避免杂质干扰检测精度，通过在抽气泵1的后端设置多个串联的气室，且每个气室均设置有用于检测不同成分和浓度的传感器3，方便按需扩展监测气体种类，结构紧凑，易于多种场合配套使用，适用范围广。Fig. 1 is a schematic structural view of the present invention, Fig. 2 is a schematic structural view of an air chamber in the present invention, and Fig. 3 is a partial cross-sectional view of an air chamber in the present invention, as shown in the figure, the multi-stage cascade with filtering function in this embodiment The gas path system includes a filter device, an air pump 1 and a cascaded gas chamber group formed by a plurality of gas chambers 2 in series along the flow direction of the sample gas; each gas chamber 2 is equipped with a sensor 3 for detection. The inlet and outlet of the cascaded gas circuit system are respectively located in the filter device and the end air chamber; the filter device is used to filter the sample gas to be tested to avoid impurities from interfering with the detection accuracy. A plurality of gas chambers connected in series, and each gas chamber is equipped with a sensor 3 for detecting different components and concentrations, which is convenient for expanding the types of monitored gases as needed. The structure is compact, easy to be used in various occasions, and has a wide range of applications.
本实施例中，所述过滤装置包括前后设置的粗过滤器4和精过滤器5，所述粗过滤器4内设置有用于粗过滤的SiC微孔过滤元件，所述精过滤器5内设置有用于精密过滤的PTFE多孔膜片；SiC烧结微孔过滤元件。粉尘过滤精度样气过滤精度≥0.3μm的粉尘99％，；实现粉尘过滤经气体冷凝后粗过滤；PTFE多孔膜片不仅精密除尘还能截留和阻止悬浮在样气中的微细液雾通过，且采用高效聚合过滤膜片，膜片具有微米级过滤精度，粉尘过滤精度≥0.05μm的粉尘99.9％；膜片表面经特殊酶处理，具有疏水、疏油特性，过滤液态及微细粉尘水经自洁式膜片表面自动排出，过滤器可以快速在线更换过滤膜片维护方便。In the present embodiment, the filter device includes a coarse filter 4 and a fine filter 5 arranged before and after, the SiC microporous filter element used for coarse filtration is arranged in the coarse filter 4, and the SiC microporous filter element for coarse filtration is arranged in the fine filter 5 There are PTFE porous membranes for precision filtration; SiC sintered microporous filter elements. Dust Filtration Accuracy Sample gas filtration accuracy ≥ 0.3μm dust 99%,; to achieve coarse filtration of dust after gas condensation; PTFE porous membrane not only precise dust removal but also intercept and prevent the fine liquid mist suspended in the sample gas from passing through, and Adopt high-efficiency polymeric filter membrane, the membrane has micron-level filtration accuracy, dust filtration accuracy ≥ 0.05μm is 99.9%; the surface of the membrane is treated with special enzymes, which has hydrophobic and oleophobic characteristics, and the filtered liquid and fine dust water is self-cleaning The surface of the type diaphragm is automatically discharged, and the filter can be quickly replaced online, and the filter diaphragm is easy to maintain.
本实施例中，所述抽气泵1还设置有用于形成快速置换回路的置换出气口6；快速置换回路为3通式结构，所述通过粗过滤器和精过滤器总气体流量不变，通过调整至多级级联气路流量至规定流量(通常300ml/min～600ml/min),其余多与气体通过快速置换回路排放至安全区域；其作用借助旁路样品管线将样品分流，保证输送到在线分析器气室内腔气流流量符合监测需求，与单线流路的低速流动样品管线相比，能快速置换粗过滤器和精过滤器“死体积”内气体，减少总输送延迟时间。In this embodiment, the air pump 1 is also provided with a replacement gas outlet 6 for forming a quick replacement circuit; the quick replacement circuit is a 3-way structure, the total gas flow through the coarse filter and the fine filter remains unchanged, and the gas flow through the Adjust the flow rate of multi-stage cascade gas path to the specified flow rate (usually 300ml/min～600ml/min), and the rest of the mixed gas is discharged to a safe area through the rapid replacement circuit; its function is to divert the sample by means of the bypass sample pipeline to ensure that it is delivered to the line The gas flow rate in the gas chamber of the analyzer meets the monitoring requirements. Compared with the low-speed flow sample pipeline of the single-line flow path, it can quickly replace the gas in the "dead volume" of the coarse filter and the fine filter, reducing the total delivery delay time.
本实施例中，所述单个气室包括顶端开口的圆柱壳体7、设置于圆柱壳体7内的传感器3和用于封堵顶端开口并压紧固定传感器3的压盖8，所述压盖8可拆卸式固定于圆柱壳体7顶端，所述传感器3与圆柱壳体7内腔底面之间形成气室内腔，所述气室内腔连通设置有进气嘴9和出气嘴10；所述压盖8中间设置有用于数据线缆穿过的通孔并用密封填料函密封，所述压盖8与圆柱壳体7之间设置有密封环，压盖8的固定可通过与圆柱壳体7螺纹连接的环形压套11固定。In this embodiment, the single air chamber includes a cylindrical shell 7 with an open top, a sensor 3 disposed in the cylindrical shell 7, and a gland 8 for sealing the top opening and pressing and fixing the sensor 3. The cover 8 is detachably fixed on the top of the cylindrical shell 7, and an air chamber is formed between the sensor 3 and the bottom surface of the inner cavity of the cylindrical shell 7, and the air chamber is connected with an air inlet nozzle 9 and an air outlet nozzle 10; In the middle of the gland 8, there is a through hole for the data cable to pass through and it is sealed with a sealing stuffing box. A sealing ring is arranged between the gland 8 and the cylindrical shell 7, and the gland 8 can be fixed by connecting with the cylindrical shell. 7 threaded annular pressure sleeve 11 is fixed.
本实施例中，所述气室内腔为圆柱腔12，所述进气嘴9和出气嘴10均为中心轴线与圆柱腔断面所形成的圆相切的直管段，该直管段位于圆柱腔的底部；圆柱腔底部与气嘴内孔相切，无冷凝水聚集死角。In this embodiment, the air chamber is a cylindrical chamber 12, the air inlet nozzle 9 and the air outlet nozzle 10 are straight pipe sections tangent to the circle formed by the central axis and the section of the cylindrical chamber, and the straight pipe section is located at the center of the cylindrical chamber. Bottom: The bottom of the cylindrical cavity is tangent to the inner hole of the air nozzle, and there is no dead angle for condensed water to accumulate.
本实施例中，还包括用于控制抽气泵1工作和处理各传感器3采集数据的控制器，所述控制器的输出端与抽气泵1的控制输入端连接，各传感器3的输出端与控制器的输入端连接；所述控制器可为现有的51单片机，实现自动化控制抽气泵1和数据采集。In this embodiment, it also includes a controller for controlling the work of the air pump 1 and processing the data collected by each sensor 3, the output end of the controller is connected with the control input end of the air pump 1, and the output end of each sensor 3 is connected with the control The input end of controller is connected; Described controller can be existing 51 single-chip microcomputers, realizes automatic control air pump 1 and data collection.
本实施例中，所述控制器还设置有远程通讯模块，所述远程通讯模块用于远程控制控制器；所述远程通讯模块包括远程无线收、发模块，实现人机交互和远程通讯，具有GPRS数据交互、远控、就地控制就地断电、风机等辅助功能。In this embodiment, the controller is also provided with a remote communication module, and the remote communication module is used for remote control of the controller; the remote communication module includes a remote wireless receiving and sending module, which realizes human-computer interaction and remote communication, and has Auxiliary functions such as GPRS data interaction, remote control, local control of local power-off, fan, etc.
本实施例中，所述粗过滤器4和精过滤器5均设置有放水口13；如图所示，便于清理过滤器内腔。In this embodiment, both the coarse filter 4 and the fine filter 5 are provided with a water outlet 13; as shown in the figure, it is convenient to clean the inner cavity of the filter.
本实施例中，所述圆柱壳体7底部固定设置有气室安装架14，所述气室安装架为L形安装板，L形安装板的一侧板与圆柱壳体7底面贴附固定，另一侧板设置有连接孔；结构简单，安装方便，固定稳定。In this embodiment, the bottom of the cylindrical shell 7 is fixed with an air chamber mounting frame 14, the air chamber mounting frame is an L-shaped mounting plate, and one side plate of the L-shaped mounting plate is attached and fixed to the bottom surface of the cylindrical shell 7. , the other side plate is provided with connection holes; simple structure, easy installation, stable fixation.
最后说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的宗旨和范围，其均应涵盖在本发明的权利要求范围当中。Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045916.9ACN107843694A (en) | 2017-10-31 | 2017-10-31 | Multistage cascade gas circuit system with filtering capability |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045916.9ACN107843694A (en) | 2017-10-31 | 2017-10-31 | Multistage cascade gas circuit system with filtering capability |
| Publication Number | Publication Date |
|---|---|
| CN107843694Atrue CN107843694A (en) | 2018-03-27 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711045916.9APendingCN107843694A (en) | 2017-10-31 | 2017-10-31 | Multistage cascade gas circuit system with filtering capability |
| Country | Link |
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| CN (1) | CN107843694A (en) |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | Application publication date:20180327 | |
| RJ01 | Rejection of invention patent application after publication |