CN107782855A - Multiple spot gas controlling device - Google Patents
Multiple spot gas controlling device Download PDFInfo
- Publication number
- CN107782855A CN107782855A CN201711204959.7A CN201711204959A CN107782855A CN 107782855 A CN107782855 A CN 107782855A CN 201711204959 A CN201711204959 A CN 201711204959A CN 107782855 A CN107782855 A CN 107782855A
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- China
- Prior art keywords
- gas
- connecting tube
- sampling
- sampling cylinder
- selection
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- 238000005070 sampling Methods 0.000 claims abstract description 140
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 238000009434 installation Methods 0.000 claims description 39
- 238000004891 communication Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 140
- 230000003749 cleanliness Effects 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000505 pernicious effect Effects 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 241000486406 Trachea Species 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/26—Devices for withdrawing samples in the gaseous state with provision for intake from several spaces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method, e.g. intermittent, or the display, e.g. digital
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0073—Control unit therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
- G01N2001/245—Fans
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention provides a kind of multiple spot gas controlling device, including：Select sampling cylinder,A plurality of sampling connecting tube,Rotatable connection pipe,Drive division,First gas detection unit,First power unit,Second power unit,One end of a plurality of sampling connecting tube is arranged on the air inlet face of selection sampling cylinder,And one circle of composition,One end of rotatable connection pipe is with selecting the air inlet face of sampling cylinder to contact,The other end connects with first gas detection unit,Drive division and the pipe drive connection that is rotatably connected,For driving the inlet end of rotatable connection pipe to do circular-rotation around the circle that a plurality of sampling connecting tube forms in air inlet face,In turn switch on rotatable connection pipe and each sampling connecting tube,First power unit is connected with selection sampling tank,Second power unit is connected in the gas circuit connected with rotatable connection pipe,The present invention can be to the composition of the gas of diverse location,Such as the content of water and oxygen,Pernicious gas,The uninterrupted sampling Detection of the carry out such as cleanliness factor,And accuracy of measurement is high,Small volume,Cost is low.
Description
Technical field
The invention belongs to environmental monitoring technology field, and in particular to a kind of multiple spot gas controlling device.
Background technology
Traditional environment gas monitoring system is single-point sampling detector, collect environmental gas valve be placed on needs supervised
The opening position of survey.Position if necessary to detection has multiple, current detection methods typically to have two kinds：The first detection method,
Detected using single-point sampling detector, the mode of detection for valve is placed at a test point, complete by point detection
Afterwards, then valve is placed at another test point and detected, due to needing the position of mobile sampling valve, therefore, this kind
Detection method does not apply to multiple spot in closed environment and detected；Either using multiple single-point sampling detectors to multiple test points simultaneously
And independently detected, the valve of each single-point sampling detector is placed on an opening position for needing to detect, though this kind of method
Multiple spot can be so detected simultaneously, but needs more detectors, and cost is higher.Second of detection method, in each monitoring point
Gas sampling mouth is installed respectively, then multiple tracheaes being connected with gas sampling mouth are all connected to the valve island of a multichannel, often
One tracheae has an independent magnetic valve, and the gas general export on valve island is connected to a detection device.But this kind of method
The shortcomings that be in the pipeline of closed electromagnetic valve, the gas inside pipeline remains static, when solenoid valve conduction, it is necessary to elder generation
After the gas being trapped in inside pipeline completely displacement, the gas of the monitoring location can accurately be just detected.Further, since
One Ge Fa islands connect multiple tracheaes, are detained the gas for having each tracheae at corresponding each tracheae in valve island, and in detection from valve island
During the nearest endotracheal gas in general export end, gaseous contamination that gas is easily remotely detained in valve island from general export end,
Influence the accuracy of detection.Also, existing gas sampler volume is larger.
The content of the invention
The present invention is, and it is an object of the present invention to provide a kind of can be to the gas of diverse location in order to solving the above problems and carry out
Composition, the content of such as water and oxygen, pernicious gas, cleanliness factor carry out uninterrupted sampling Detection, and accuracy of measurement it is high,
The low multiple spot gas controlling device of small volume, cost.
The invention provides a kind of multiple spot gas controlling device, it is characterised in that including：Select sampling cylinder,
A plurality of sampling connecting tube, connect with the selection sampling cylinder, each described one end for sampling connecting tube with it is described
The air inlet face connection of sampling cylinder is selected, the other end is connected with sampling pipe, and a plurality of sampling connecting tube is connected to the selection and adopted
One end of sample cylinder forms a circle；
Rotatable connection pipe, in the selection sampling cylinder, the rotatable connection pipe includes：With the selection sampling cylinder
Air inlet face is vertical and extended line is by first connecting tube in the circular center of circle, one end and the air inlet face of the selection sampling cylinder
The second connecting tube and the 3rd connecting tube of connection first connecting tube and second connecting tube being in close contact, it is described
One end that second connecting tube contacts with the air inlet face of the selection sampling cylinder is equal to the circle to the distance of first connecting tube
The radius of shape；
Drive division, it is fixed in the air inlet face of the selection sampling cylinder, and the first connecting tube drive connection, for driving
First connecting tube is moved to rotate around own central axis line,
First gas detection unit, connected with the rotatable connection pipe, for pair sampling pipe connected with rotatable connection pipe
The gas of collection is detected；
First power unit, it is connected in the gas circuit connected with the rotatable connection pipe, connects for providing with the rotation
Take over the power of gas circulation in the sampling connecting tube of connection；And
Second power unit, connect with the selection sampling cylinder, selected for providing with described described in sampling cylinder connects
The power of gas circulation in connecting tube is sampled,
Wherein, the power that first power unit and second power unit provide causes in the rotatable connection pipe
Gas pressure be more than it is described selection sampling cylinder in gas pressure.
Further, in multiple spot gas controlling device provided by the invention, can also have the feature that：Wherein, it is more
Point gas controlling device also includes flow controlling unit, is connected in the gas circuit connected with the rotatable connection pipe, for controlling
The flow of gas in the gas circuit connected with the rotatable connection pipe, so as to control the pressure of gas in the rotatable connection pipe.
Further, in multiple spot gas controlling device provided by the invention, can also have the feature that：Wherein, institute
It is air blower to state the first power unit and second power unit.
Further, in multiple spot gas controlling device provided by the invention, can also have the feature that：Wherein, institute
Drive division is stated to include：Be fixed on it is described selection sampling cylinder air inlet face on and motor shaft by the circular center of circle motor,
And the installation component on the motor shaft of the motor is fixed on, first connecting tube is arranged in the installation unit.
Further, in multiple spot gas controlling device provided by the invention, can also have the feature that：Wherein, institute
Stating installation unit includes：The first peace on the motor shaft of the motor is fixed on to turn component and be fixed on first installation component
The second installation component, one end that first installation component is connected with second installation component is hollow structure, and side wall
Upper setting is fluted, and second installation component is hollow structure, and first connecting tube is installed into described by the groove
In second installation component.
Further, in multiple spot gas controlling device provided by the invention, can also have the feature that：Wherein, institute
State first gas detection unit and rotation is passed through with first connecting tube by pipeline communication, the pipeline with first connecting tube
Adapter connects, and what the swivel joint included being fixed on the installation unit and being connected with first connecting tube first connects
Head component and the second joint member for being rotatablely connected with first joint member and being connected with the pipeline.
Further, in multiple spot gas controlling device provided by the invention, can also have the feature that：Wherein, it is more
Point gas controlling device also includes spring leaf, and the both ends of the spring leaf are separately fixed at the 3rd connecting tube and the air inlet
On one end and the installation unit of face contact.
Further, in multiple spot gas controlling device provided by the invention, can also have the feature that：Wherein, with
The gas outlet of the gas circuit of the rotatable connection pipe connection connects with the selection sampling cylinder.
Further, in multiple spot gas controlling device provided by the invention, can also have the feature that：Wherein, it is more
Point gas controlling device also includes second gas detection unit, is connected with the selection sampling cylinder, in selection sampling cylinder
Mixed gas detected.
Further, in multiple spot gas controlling device provided by the invention, can also have the feature that：Wherein, institute
State a plurality of sampling connecting tube and angularly set with one end that the air inlet face of the selection sampling cylinder is connected.
The invention has the advantages that：
According to multiple spot gas controlling device involved in the present invention, because the sampling connecting tube for connecting sampling pipe is connected to
The same face of sampling cylinder is selected, and connection end composition is circular, the one end for the pipe that is rotatably connected contacts with air inlet face, driven by drive division
The pipe that is rotatably connected rotates so that rotary link pipe connects with each sampling connecting tube successively, so as to first gas detection unit successively
The gas of each monitoring point is detected, selects sampling cylinder to be connected with the second power unit, is to connect a sampling with selection sampling cylinder to connect
Pipe provides the power of gas circulation, and therefore, the gas in each sampling pipe circulates all the time, avoids the gases affect being detained in sampling pipe
Accuracy in detection, meanwhile, also it is avoided that and is trapped in because connecting the gas of gas circuit caused by valve guide structure by other gas circuits in valve leads
Gaseous contamination, the first power unit is connected to in the gas circuit that connect of rotatable connection pipe, being to be adopted with what the pipe that is rotatably connected connected
Sample connecting tube provides the power of gas circulation, and the power that the first power unit and the second power unit provide to be rotatably connected
Pressure in pipe is more than the pressure of mixed gas in selection sampling tank, so as to avoid selecting the mixed gas in sampling pipe from entering rotation
Turn in connecting tube, the gas in rotatable connection pipe is polluted and influences testing result, therefore, multiple spot gas of the invention prison
Surveying device can uninterruptedly be taken out to the composition of the gas of diverse location, the content of such as water and oxygen, pernicious gas, cleanliness factor
Sample detects, and accuracy of measurement height, small volume, cost are low.
Brief description of the drawings
Fig. 1 is the structural representation of multiple spot gas controlling device in embodiments of the invention；
Fig. 2 is the structure diagram of multiple spot gas controlling device in embodiments of the invention；
Fig. 3 is the structural representation that multiple spot gas controlling device removes shell in embodiments of the invention；
Fig. 4 is the structural representation of another angle that multiple spot gas controlling device removes shell in embodiments of the invention；
Fig. 5 is selection sampling cylinder internal structure schematic diagram in embodiments of the invention；
Fig. 6 is the structural representation of rotatable connection pipe in embodiments of the invention；
Fig. 7 is the structural representation of installation unit in embodiments of the invention；
Fig. 8 is the structural representation of swivel joint in embodiments of the invention；
Fig. 9 is the explosive view of swivel joint in embodiments of the invention；
Figure 10 is the scheme of installation between rotatable connection pipe, installation unit and swivel joint in embodiments of the invention.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, it is real below
Example combination accompanying drawing is applied to be specifically addressed the multiple spot gas controlling device of the present invention.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, multiple spot gas controlling device 100 is used for the water for monitoring the gas of multiple monitoring points
Oxygen value and cleanliness factor.Multiple spot gas controlling device 100 includes：Select sampling cylinder 101, a plurality of sampling connecting tube 102, rotatable connection
Pipe 103, drive division 104, first gas detection unit 105, the first power unit 106, the second power unit 107, flow control
Unit 108.
It is a plurality of sampling connecting tube 102 with selection sampling cylinder 101 connect, every sample connecting tube 102 one end with selection
The air inlet face connection of sampling cylinder 101, the other end are used to connect sampling pipe, in the present embodiment, sample connecting tube 102 and sampling pipe
One end of connection is fixed on pinboard 1181 by joint 1021, and pinboard 1181 is fixed on shell 118.With Fig. 3 side
To seeing, the air inlet face 1011 for selecting sampling cylinder 101 is leading flank.A plurality of sampling connecting tube 102 is connected to selection sampling cylinder 101
One end forms a circle in air inlet face 1011, and one end that a plurality of sampling connecting tube 20 is connected to pinboard 71 does not limit then
It is fixed, in the present embodiment, it is divided into two rows setting on pinboard 1181.In the present embodiment, a plurality of sampling connecting tube 102
The one end being connected with the air inlet face for selecting sampling cylinder 101 is angularly set.
As shown in fig. 6, rotatable connection pipe 103 includes the first connecting tube 1031, the second connecting tube 1032 and the 3rd connecting tube
1033.The both ends of 3rd connecting tube 1033 connect with one end of the first connecting tube 1031 and one end of the second connecting tube 1032 respectively
Connect, the first connecting tube 31 is connected with the second connecting tube 32, the other end of the first connecting tube is the outlet of rotatable connection pipe 103
End, the other end of the second connecting tube 1032 are the inlet end of rotatable connection pipe 103.First connecting tube 1031 is perpendicular to sampling tank
101 air inlet face is set, and extended line is connected to one end composition of selection sampling cylinder 101 by a plurality of sampling connecting tube 102
The circular center of circle.The end face of the inlet end of second connecting tube 1032 and the air inlet face 1011 of selection sampling cylinder 101 are in close contact, and
The end is equal to a plurality of one end composition for sampling connecting tube 102 and being connected to selection sampling cylinder 101 to the distance of the first connecting tube 1031
Circular radius, when the first connecting tube 1031 around its own axis revolve pass when, the inlet end of the second connecting tube 1032 is entering
The circle weight for one end composition that the track moved on gas face 1011 is just connected with a plurality of sampling connecting tube 102 with air inlet face 1011
Close.
As shown in figure 5, drive division 104 is fixed in the air inlet face 1011 of selection sampling cylinder 101, with the first connecting tube 1031
Drive connection, for driving the first connecting tube 1031 to be rotated around its own axis.In the present embodiment, drive division 104 includes
Motor 1041 and installation unit 1042, motor 1041 are fixed in the air inlet face 1011 of selection sampling cylinder 101, and motor 1041
Motor shaft is perpendicular to the air inlet face 1011 for selecting sampling cylinder 101, and motor shaft is connected by a plurality of sampling conduit 20 with air inlet face 11
The center of circle of the circle of one end composition connect.Installation unit 1042 is fixed on the motor shaft of motor 1041, for installing the first connection
Pipe 1031.
In the present embodiment, as shown in fig. 7, installation unit 1042 includes the first installation component 421 and the second installation component
422.Second installation component 422 is hollow structure.As shown in Fig. 5, Fig. 7, Figure 10, the first installation component 421 is fixed on motor
On 1041 motor shaft, one end for being connected on the first installation component 421 with the second installation component 422 is hollow structure, and side wall
Upper to set fluted 4211, the first connecting tube 1031 is installed into the second installation component 422 by groove 4211.
In the present embodiment, in order that the air inlet face 1011 of the inlet end of the second connecting tube 1032 and selection sampling cylinder 101
It is in close contact, avoids selecting the mixed gas in sampling cylinder 101 from entering in rotatable connection pipe 103, be also provided with spring leaf 109,
One end of spring leaf 109 is fixed on one end that the second connecting tube 1032 contacts with air inlet face 1011, and the other end is fixed on installation structure
On part 1042.
First gas detection unit 105 connects with rotatable connection pipe 103, for detecting with being rotatably connected what pipe 103 connected
The water of the gas gathered in sampling connecting tube and content, pernicious gas and the cleanliness factor of oxygen etc..
The connecting tube 103 of first gas detection unit 105 and first is logical by pipeline communication, pipeline and the first connecting tube 103
Swivel joint 116 is crossed to connect.As shown in Figure 8, Figure 9, swivel joint 116 includes the first joint member 1161 and the second joint member
1162.First joint member 1161 is fixed on installation unit 1042 and is connected with the first connecting tube 103, the second joint member
1162 are rotatably installed in the first joint member 1161 and with connecting the connecting tube 103 of first gas detection unit 105 and first
Pipeline connects.Therefore, when the drive installation unit 1042 of motor 421 rotates, the first connecting tube 103 rotates with installation unit 1042
When, the first joint member 1161 and the second joint member 1162 relatively rotate, so as to ensure to connect first gas detection unit 105
It is static relative to selection sampling cylinder 101 with the pipeline of the first connecting tube 103.
In the present embodiment, the air inlet of first gas detection unit 105 is connected by pipeline 111 and pipeline 112 and first
Adapter 1031 connects.As shown in Fig. 4, Fig. 5, Figure 10, one end of pipeline 111 is connected with the second joint member 1162, pipeline 111
The other end is fixed on by joint in the side wall of selection sampling cylinder 10, and one end and the pipeline 111 of pipeline 112 are fixed on selection sampling
One end of cylinder 101 is connected by joint, and the other end of pipeline 112 is connected with the air inlet of first gas detection unit 105, so as to
First gas detection unit 105 is connected with the first connecting tube 1031.
First power unit 106 is used to provide moving for the circulation of gas in sampling connecting tube connect with the pipe 103 that is rotatably connected
Power.First power unit 106 is connected in the gas circuit connected with rotatable connection pipe 103.
In the present embodiment, the first power unit 106 is air blower.The gas outlet of first gas detection unit 105 passes through
Pipeline 113 connects with the first power unit 106.
In the present embodiment, the gas outlet of the gas circuit connected with rotatable connection pipe 103 connects with selection sampling cylinder 101, has
Body, the gas outlet of the first power unit 106 is connected by pipeline 117 with selection sampling cylinder 101, now, selects sampling cylinder 101
Inside collecting has the mixed gas of all monitoring point collections.Certainly, the gas outlet of first gas detection unit 105 can not also be with choosing
Sampling cylinder 101 is selected to connect.
Second power unit 107 is used to provide to be moved with what gas in the sampling connecting tube for selecting sampling cylinder 101 to connect circulated
Power.Second power unit 107 connects with selection sampling cylinder 101.Second power unit 107 causes the gas in each sampling conduit 102
Body is always maintained at circulating, so as to rotatable connection pipe 103 inlet end with wherein one sampling connecting tube 102 connect after, pair and be somebody's turn to do
, will not be because of the gas being detained in sampling pipe and to detection when the gas of monitoring point is detected corresponding to sampling connecting tube 102
As a result impact.In the present embodiment, the second power unit 107 is air blower.
The power that reasonable adjusting the first power unit 106 and the second power unit 107 provide so that the first power unit
106 and second power unit 107 provide power cause be rotatably connected pipe 103 in gas pressure be more than selection sampling cylinder 101
In gas pressure, avoid select sampling cylinder 101 in mixed gas enter selection sampling pipe 103 in, to select sampling pipe 103
Interior gas pollutes.
In the present embodiment, multiple spot gas controlling device 100 also includes flow controlling unit 108, flow controlling unit 108
For controlling the flow of gas in the gas circuit connected with the pipe 103 that is rotatably connected, so as to control the pressure of gas in rotatable connection pipe 103
Power so that its pressure is more than the gas pressure in selection sampling cylinder 101.Flow controlling unit 108 is connected to and the pipe that is rotatably connected
In the gas circuit of 103 connections.It is set to meet rotation due to being not easily controlled using the first power unit 106 and the second power unit 107
Turn the gas pressure that the gas pressure in connecting tube 103 is more than in selection sampling cylinder 101, therefore, select to manage with being rotatably connected
Increase volume control device 108 in the gas circuit of 103 connections, the flow in the gas circuit connected by it for rotatable connection pipe 103
It is controlled, so as to ensure so that the gas pressure turned in connecting tube 103 is more than the gas pressure in selection sampling cylinder 101
Power.
Specifically, flow controlling unit 108 be arranged on the connecting tube 1031 of first gas detection unit 105 and first it
Between, the air inlet of volume control device 108 is connected with pipeline 112, and the connection of pipeline 112 is connected with pipeline 111, volume control device
108 gas outlet is connected with one end of pipeline 114, and the other end of pipeline 114 connects with the air inlet of first gas detection unit 105
Connect.
In the present embodiment, multiple spot gas controlling device 100 also includes second gas detection unit 110, second gas inspection
Survey unit 110 to connect with selection sampling cylinder 101, for detecting the mixed gas in selection sampling cylinder 101.Second gas detection is single
The air inlet of member 110 is connected with one end of pipeline 115, and the end of pipeline 115 is fixed on pinboard 1181 by joint 1151,
The other end of pipeline 115 connects with selection sampling cylinder 101.
In the present embodiment, multiple spot gas controlling device 100 also includes shell 118.Select sampling cylinder 101, a plurality of sampling
Connecting tube 102, rotatable connection pipe 103, drive division 104, first gas detection unit 105, the first power unit 106, second are dynamic
Power unit 107, flow controlling unit 108 are installed in shell 118.The air outlet 1061 of first power unit 106 stretches out outer
Shell 118.
During use：
Sampling pipe is arranged in each sampling connecting tube 102, the ozzle of sampling pipe is individually positioned in the prison for needing to monitor
Measuring point, the switch of multiple spot gas controlling device 100 is opened, the first power unit 106 and the second power unit 107 are run, each prison
The gas of measuring point is entered in selection sampling cylinder 101 by each self-corresponding sampling pipe, and motor 1041 drives the first connecting tube 1031
Rotate so that the inlet end of the second connecting tube 1032 connects with each sampling connecting tube 101 respectively, and passes through flow controlling unit
Flow in 108 gas circuits connected for rotatable connection pipe 103 is controlled, so as to which first gas detection unit 105 is right successively
The gas of each monitoring point is monitored.Due to finally flowing into choosing with the gas of sampling connecting tube 102 for the connection of pipe 103 that is rotatably connected
Sampling cylinder 101 is selected, therefore, selects the mixed gas that the gas in sampling cylinder 101 is always all monitoring points, second gas detection
Unit 110 measures the water of the mixed gas of all monitoring points and content of oxygen, pernicious gas and cleanliness factor etc..
Above-mentioned embodiment is the preferred case of the present invention, is not intended to limit protection scope of the present invention.
Claims (10)
- A kind of 1. multiple spot gas controlling device, it is characterised in that including：Select sampling cylinder；A plurality of sampling connecting tube, connected with the selection sampling cylinder, one end of each sampling connecting tube and the selection The air inlet face connection of sampling cylinder, the other end are connected with sampling pipe, and a plurality of sampling connecting tube is connected to the selection sampling cylinder One end form a circle；Rotatable connection pipe, in the selection sampling cylinder, the rotatable connection pipe includes：With the air inlet of the selection sampling cylinder Face is vertical and extended line is close by first connecting tube in the circular center of circle, one end and the air inlet face of the selection sampling cylinder Second connecting tube of contact and the 3rd connecting tube for connecting first connecting tube and second connecting tube, described second Connecting tube is equal to described circular with one end that the air inlet face of the selection sampling cylinder contacts to the distance of first connecting tube Radius；Drive division, it is fixed in the air inlet face of the selection sampling cylinder, and the first connecting tube drive connection, for driving The first connecting tube is stated to rotate around own central axis line；First gas detection unit, connect with the rotatable connection pipe, gathered for pair sampling pipe connected with rotatable connection pipe Gas detected；First power unit, it is connected in the gas circuit connected with the rotatable connection pipe, for providing and the pipe that is rotatably connected The power of gas circulation in the sampling connecting tube of connection；AndSecond power unit, connected with the selection sampling cylinder, for providing the sampling connected with the selection sampling cylinder The power that gas circulates in connecting tube,Wherein, the power that first power unit and second power unit provide causes the gas in the rotatable connection pipe Body pressure is more than the gas pressure in the selection sampling cylinder.
- 2. multiple spot gas controlling device according to claim 1, it is characterised in that also include：Flow controlling unit, it is connected in the gas circuit connected with the rotatable connection pipe, for controlling and the pipe that is rotatably connected The flow of gas in the gas circuit of connection, so as to control the pressure of gas in the rotatable connection pipe.
- 3. multiple spot gas controlling device according to claim 1, it is characterised in that：First power unit and second power unit are air blower.
- 4. multiple spot gas controlling device according to claim 1, it is characterised in that：The drive division includes：It is fixed in the air inlet face of the selection sampling cylinder and motor shaft is by the circular center of circle Motor and the installation unit being fixed on the motor shaft of the motor, first connecting tube are arranged on the installation unit It is interior.
- 5. multiple spot gas controlling device according to claim 4, it is characterised in that：The installation unit includes：The first peace on the motor shaft of the motor is fixed on to turn component and be fixed on first installation The second installation component on component, one end that first installation component is connected with second installation component are hollow structure, And set fluted in side wall, second installation component is hollow structure,First connecting tube is installed into second installation component by the groove.
- 6. multiple spot gas controlling device according to claim 4, it is characterised in that：The first gas detection unit passes through pipeline communication, the pipeline and first connecting tube with first connecting tube Connected by swivel joint, the swivel joint includes what is be fixed on the installation unit and be connected with first connecting tube First joint member and the second joint member for being rotatablely connected with first joint member and being connected with the pipeline.
- 7. multiple spot gas controlling device according to claim 4, it is characterised in that also include：Spring leaf, the both ends of the spring leaf are separately fixed at one end and institute that the 3rd connecting tube contacts with the air inlet face State on installation unit.
- 8. multiple spot gas controlling device according to claim 1, it is characterised in that：The gas outlet of the gas circuit connected with the rotatable connection pipe connects with the selection sampling cylinder.
- 9. multiple spot gas controlling device according to claim 8, it is characterised in that also include：Second gas detection unit, connected with the selection sampling cylinder, for being examined to the mixed gas in selection sampling cylinder Survey.
- 10. multiple spot gas controlling device according to claim 1, it is characterised in that：One end that a plurality of sampling connecting tube is connected with the air inlet face of the selection sampling cylinder is angularly set.
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| CN107782855B (en) | 2023-11-03 |
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