Indoor four-channel constant-flow air sampler

Abstract

The utility model discloses an indoor four-channel constant flow atmosphere sampler, and particularly relates to the technical field of atmosphere sampling, the indoor four-channel constant flow atmosphere sampler comprises a reinforcing tube, a flow guide collecting assembly is arranged on the reinforcing tube, the flow guide collecting assembly comprises two gas distributing tube bodies which are arranged at one end of the reinforcing tube and used for flow guide, and the two gas distributing tube bodies are oppositely arranged. According to the utility model, through the arrangement of the flow guiding and collecting assembly, gas conveyed by each guide pipe can be easily conveyed into the corresponding flow dividing gas channels, so that inaccurate detection caused by mixing of the gas is avoided, and through the rotation of the flow guiding blades, gas flows in each flow dividing gas channel can be simultaneously extracted and conveyed to the detection core for detection, so that the detection accuracy is improved. The function of extracting and detecting gas in multiple directions at the same time is achieved, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to atmospheric sampling technical field more specifically, the utility model relates to indoor four passageway constant current atmospheric sampler. BACKGROUND

[0002] Indoor atmospheric sampler is a kind of professional equipment for collecting indoor air pollutants, for collecting multiple air samples, applicable to environmental monitoring, occupational health, scientific research and other fields, by simultaneously collecting different points or different pollutants (such as PM2.5, VOCs, formaldehyde, etc.

[0003] Among them, the patent with announcement number CN216847096U discloses a four-channel constant-current atmospheric sampler, which comprises four gas channels, each gas channel comprises an absorption bottle, the absorption bottle is connected to the interface one on the dryer through the front gas path connecting pipe, the interface two on the dryer is connected to the air pump connector on the host through the rear gas path connecting pipe, the air pump connector is connected to the air suction pump through the built-in air pipe, the air suction pump is fixedly installed in the host, and a liquid crystal display screen is arranged on the front door of the case of the host;

[0004] The structure can be controlled separately when using two to four gases or parallel sampling, and the flow rate can be automatically and accurately controlled by an electronic flowmeter, but the structure is not easy to quickly shunt when using, so that the sampling gas is easily mixed together, causing inaccurate detection. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an indoor four-channel constant-current atmospheric sampler, which aims to solve the problems raised in the above background art.

[0006] The utility model provides the following technical scheme: an indoor four-channel constant-current atmospheric sampler, comprising a reinforcing pipe, a flow guide collection assembly is arranged on the reinforcing pipe;

[0007] The flow guide collection assembly comprises two gas distribution pipe bodies for flow guiding arranged at one end of the reinforcing pipe, the two gas distribution pipe bodies are oppositely arranged, and each gas distribution pipe body is provided with a reinforcing shunt arc piece for shunting;

[0008] A detection cylinder is installed on one end of the reinforcing pipe away from the gas distribution pipe body through bolts, a detection core for detecting airflow is arranged in the detection cylinder, an extension cylinder body for exhausting is installed on one end of the detection cylinder away from the reinforcing pipe through bolts, the reinforcing shunt arc piece is in the shape of an arc, and the reinforcing shunt arc piece is detachably connected with the gas distribution pipe body through bolts, and a shunt air duct for shunting is formed between the reinforcing shunt arc piece and the gas distribution pipe body.

[0009] It can be seen that in the above technical solution, the gas transported by each conduit is respectively transported into the corresponding shunt air duct, avoiding the mixing of the gas together to cause inaccurate detection.

[0010] Optionally, in possible embodiments, the middle part of the reinforcing pipe is bolted with a limiting shaft sleeve, the middle part of the limiting shaft sleeve is rotationally connected with a rotating shaft rod, one end of the rotating shaft rod penetrates through the detection core and extends to one end of the detection core, the rotating shaft rod is rotationally connected with the detection core, the end of the reinforcing pipe away from the detection cylinder is bolted with a driving motor, the output end of the driving motor extends to the end of the rotating shaft rod, the output end of the driving motor is detachably connected with the rotating shaft rod through bolts, and the middle part of the extension cylinder body is rotationally connected with a guide vane for extracting the airflow.

[0011] It can be seen that in the above technical solution, the airflow in each shunt air duct can be simultaneously extracted and transported to the detection core for detection through the rotation of the guide vane, realizing the function of simultaneously extracting and detecting multidirectional gas, improving the detection efficiency, and in order to ensure the accuracy during detection, a valve can be installed at the connection between each conduit and the shunt air duct to realize the function of plugging during airflow transportation, ensuring the diversity of the device during detection.

[0012] The technical effects and advantages of the utility model are as follows:

[0013] Compared with the prior art, the overall design is simple and reasonable, and through the corresponding cooperation of various structures, the gas transported by each conduit can be respectively transported into the corresponding shunt air duct, avoiding the mixing of the gas together to cause inaccurate detection.

[0014] Through the rotation of the guide vane, the airflow in each shunt air duct can be simultaneously extracted and transported to the detection core for detection, realizing the function of simultaneously extracting and detecting multidirectional gas, improving the detection efficiency, and in order to ensure the accuracy during detection, a valve can be installed at the connection between each conduit and the shunt air duct to realize the function of plugging during airflow transportation, ensuring the diversity of the device during detection. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present disclosure, the following will briefly introduce the drawings needed to be used in some embodiments. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art according to these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams, and are not limited to the actual size of the product, the actual process of the method, the actual time sequence of the signal, etc. involved in the embodiments of the present disclosure.

[0016] Figure 1 This is a front view of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0018] Figure 3 This is a perspective view of the reinforcing tube and the gas distribution tube of this utility model.

[0019] Figure 4 This is a perspective view of the detection cylinder, extension cylinder, rotating shaft, limiting bushing, and detection core of this utility model.

[0020] The attached diagram is labeled as follows: 1. Reinforcing tube; 2. Gas splitting tube body; 3. Reinforcing splitting arc component; 4. Detection cylinder; 5. Extension cylinder body; 6. Split air passage; 7. Rotating shaft; 8. Limiting bushing; 9. Detection core; 10. Drive motor; 11. Guide vane. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] As attached Figure 1 - Figure 4 The indoor four-channel constant flow atmospheric sampler shown uses a flow-guiding and acquisition component on the reinforcing tube 1 to easily deliver the gas transported by each conduit to the corresponding diversion channel 6, avoiding gas mixing and inaccurate detection. This allows the airflow in each diversion channel 6 to be simultaneously extracted and transported to the detection core 9 for detection, achieving the function of simultaneous extraction and detection of gas from multiple directions, improving detection efficiency. In order to ensure the accuracy of detection, valves can be installed at the connection between each conduit and the diversion channel 6 to block the airflow during delivery, ensuring the versatility of the device during detection. The specific structural configuration of the components is as follows.

[0023] The flow guiding and acquisition component includes two gas distribution pipe bodies 2, both used for flow guiding, which are set at one end of the reinforcing pipe 1. The two gas distribution pipe bodies 2 are arranged opposite to each other, and each gas distribution pipe body 2 is provided with a reinforcing flow dividing arc element 3 for flow dividing.

[0024] The end of the reinforcing pipe 1 away from the gas distribution pipe body 2 is bolted with a detection cylinder 4, the inside of the detection cylinder 4 is provided with a detection core 9 for detecting the gas flow, the end of the detection cylinder 4 away from the reinforcing pipe 1 is bolted with an extension cylinder body 5 for discharging the gas, the shape of the reinforcing flow distribution arc piece 3 is arc-shaped, and the reinforcing flow distribution arc piece 3 is detachably connected with the gas distribution pipe body 2 through bolts, and the reinforcing flow distribution arc piece 3 and the gas distribution pipe body 2 form a flow distribution gas passage 6 therebetween;

[0025] The middle part of the reinforcing pipe 1 is bolted with a limiting shaft sleeve 8, the middle part of the limiting shaft sleeve 8 is rotatably connected with a rotating shaft rod 7, one end of the rotating shaft rod 7 penetrates through the detection core 9 and extends to one end of the detection core 9, the rotating shaft rod 7 is rotatably connected with the detection core 9, the end of the reinforcing pipe 1 away from the detection cylinder 4 is bolted with a driving motor 10, the output end of the driving motor 10 extends to the end of the rotating shaft rod 7, and the output end of the driving motor 10 is detachably connected with the rotating shaft rod 7 through bolts, and the middle part of the extension cylinder body 5 is rotatably connected with a flow guide vane 11 for extracting the gas flow, and the flow guide vane 11 is detachably connected with the rotating shaft rod 7 through bolts.

[0026] According to the above structure, when in use, the workers install the device at the specified position, install two pipes at the end of the gas distribution pipe body 2, and make each pipe respectively communicate with the corresponding flow distribution gas passage 6, so that the gas conveyed by each pipe can be respectively conveyed into the corresponding flow distribution gas passage 6, avoiding the mixing of the gas and causing inaccurate detection.

[0027] Meanwhile, when the gas flow is extracted, the rotating shaft rod 7 is driven to rotate by the driving motor 10, the flow guide vane 11 is driven to rotate when the rotating shaft rod 7 rotates, so that the gas flow in each flow distribution gas passage 6 can be simultaneously extracted and conveyed to the detection core 9 for detection, realizing the function of simultaneously extracting and detecting the gas in multiple directions, improving the detection efficiency, and in order to ensure the accuracy during detection, valves can be installed at the connection between each pipe and the flow distribution gas passage 6 to realize the function of plugging during the conveying of the gas flow, ensuring the diversity of the device during detection.

[0028] Different from the prior art, the application discloses an indoor four-channel constant-flow atmospheric sampler, which can easily convey the gas conveyed by each pipe into the corresponding flow distribution gas passage 6, avoid the mixing of the gas and cause inaccurate detection, and then make the gas flow in each flow distribution gas passage 6 be simultaneously extracted and conveyed to the detection core 9 for detection, realizing the function of simultaneously extracting and detecting the gas in multiple directions, improving the detection efficiency, and in order to ensure the accuracy during detection, valves can be installed at the connection between each pipe and the flow distribution gas passage 6 to realize the function of plugging during the conveying of the gas flow, ensuring the diversity of the device during detection.

[0029] The above are only preferred embodiments of the present application, and are not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. Indoor four-channel constant flow atmospheric sampler, comprising a reinforced tube (1), characterized in that: The reinforcing pipe (1) is provided with a flow guiding and collecting assembly; The flow guiding and collecting assembly comprises two gas distribution pipe bodies (2) provided at one end of the reinforcing pipe (1) and used for guiding flow, the two gas distribution pipe bodies (2) are oppositely arranged, and each of the gas distribution pipe bodies (2) is provided with a reinforcing flow distribution arc piece (3) used for flow distribution; One end of the reinforcing pipe (1) away from the gas distribution pipe body (2) is provided with a detection cylinder (4) through bolts, the detection cylinder (4) is provided with a detection core (9) used for detecting flow inside, and one end of the detection cylinder (4) away from the reinforcing pipe (1) is provided with an extension cylinder body (5) used for discharging exhaust through bolts.

2. The indoor four-channel constant-flow atmospheric sampler of claim 1, wherein: The reinforcing flow distribution arc piece (3) is arranged in an arc shape, the reinforcing flow distribution arc piece (3) and the gas distribution pipe body (2) are detachably connected through bolts, and a flow distribution passage (6) used for flow distribution is formed between the reinforcing flow distribution arc piece (3) and the gas distribution pipe body (2).

3. The indoor four-channel constant-flow atmospheric sampler of claim 1, wherein: The middle part of the reinforcing pipe (1) is provided with a limiting shaft sleeve (8) through bolts, and the middle part of the limiting shaft sleeve (8) is rotatably connected with a rotating shaft rod (7).

4. The indoor four-channel constant-flow atmospheric sampler of claim 3, wherein: One end of the rotating shaft rod (7) penetrates the detection core (9) and extends to one end of the detection core (9), and the rotating shaft rod (7) is rotatably connected with the detection core (9).

5. The indoor four-channel constant-flow atmospheric sampler of claim 1, wherein: One end of the reinforcing pipe (1) away from the detection cylinder (4) is provided with a driving motor (10) through bolts, the output end of the driving motor (10) extends to the end of the rotating shaft rod (7), and the output end of the driving motor (10) is detachably connected with the rotating shaft rod (7) through bolts.

6. The indoor four-channel constant-flow atmospheric sampler of claim 1, wherein: The middle part of the extension cylinder body (5) is rotatably connected with a flow guiding vane (11) used for extracting flow, and the flow guiding vane (11) is detachably connected with the rotating shaft rod (7) through bolts.

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