CN208588588U - A kind of VOCs adsorption tube sampling apparatus - Google Patents
A kind of VOCs adsorption tube sampling apparatus Download PDFInfo
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- CN208588588U CN208588588U CN201820867592.0U CN201820867592U CN208588588U CN 208588588 U CN208588588 U CN 208588588U CN 201820867592 U CN201820867592 U CN 201820867592U CN 208588588 U CN208588588 U CN 208588588U
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Abstract
The utility model relates to a kind of VOCs adsorption tube sampling apparatuses, including opium pipe, host, the first and second semiconductor chilling plates, absorption bottle, dewatering cavity, adsorption tube component, the first and second temperature sensors to set；Opium pipe includes tube body and main body, and heating member is provided with outside the inner tube of tube body, the first master control borad, heating module and temperature control module are provided in main body；Host includes outer housing, the second master control borad, flow controller, pumping power device and suction nozzle；It is sequentially connected gas outlet, dewatering cavity, adsorption tube component and the suction nozzle of opium pipe；First master control borad controls the work of the first semiconductor chilling plate until the temperature of the first temperature sensor detection is greater than the first preset temperature and controls the work of the second semiconductor chilling plate until the temperature of second temperature sensor detection is greater than the second preset temperature；Second master control borad receives the gas flow of flow controller output and according to the revolving speed of preset flow and preset flow control errors pumping power device.For improving VOCs adsorption efficiency.
Description
Technical field
The utility model belongs to gas sampling technologies field, and in particular to a kind of VOCs adsorption tube sampling apparatus.
Background technique
Volatile organic compounds (volatile organic compounds, VOCs) is the row such as petroleum, pharmacy, printing
The common contaminant of industry discharge.VOCs human health multipair greatly has negative effect, but these substances are again most after recycling to be had
There is economic value, so needing to sample VOCs before being recycled, to determine whether that there are to be recycled to have
The content of VOCs is in beneficial substance, or detection exhaust gas to determine whether discharge exhaust gas meets the discharge standard of national relevant regulations.
In general, the flue gas temperature and humidity that VOCs is contained therein is larger, now for sampling the instrument of VOCs, generally to pass through opium pipe straight in the market
It connects drainage flue gas and VOCs is sampled by adsorption tube, since flue gas temperature and humidity is big, is easy to cause in opium pipe pipeline and is formed
Condensed water influences subsequent adsorbtion pipe to the adsorption efficiency of VOCs, and smoke moisture vapor brought greatly also will affect suction
Absorption of the attached pipe to VOCs, causes adsorption efficiency low.
Utility model content
The utility model provides a kind of VOCs adsorption tube sampling apparatus, for improving VOCs adsorption efficiency.
In order to solve the above-mentioned technical problem, the utility model proposes following technical solutions to be resolved:
A kind of VOCs adsorption tube sampling apparatus, including opium pipe, host and refrigeration dehydration device with thief hatch；The cigarette
Rifle includes tube body and main body, is provided with heating member outside the intracorporal inner tube of pipe, the first master control borad is provided in the main body,
The heating module and temperature control module for heating the heating member are provided on first master control borad；The host includes outer
Shell, the flow controller that intracorporal second master control borad of the shell is set, is connect with second master control borad, pumping power
Device and suction nozzle；The refrigeration dehydration device includes the first semiconductor chilling plate, the second semiconductor chilling plate, has absorption bottle
Dewatering cavity, adsorption tube component, for detect it is described dehydration cavity temperature the first temperature sensor and for detecting the suction
The second temperature sensor of the temperature of attached tube assembly, be sequentially connected the gas outlet of the opium pipe, dewatering cavity, adsorption tube component and into
Gas nozzle；First master control borad controls the work of the first semiconductor chilling plate until receiving the first temperature sensor detection
Temperature is greater than the first preset temperature, and controls the work of the second semiconductor chilling plate until receiving the second temperature sensor inspection
The temperature of survey is greater than the second preset temperature；Second master control borad receives adopting from the suction nozzle for the flow controller output
The flow of the gas collected and the revolving speed that power device is evacuated according to preset flow and preset flow control errors, make described
Fiducial value between flow and the preset flow is in the preset flow error.
Further, the refrigeration dehydration device further includes the first check valve and second being connected with first master control borad
Check valve；The adsorption tube component includes refrigerating chamber, main road adsorption tube and bypass adsorption tube, and the main road adsorption tube and bypass are inhaled
The entrance of attached pipe protrudes into the refrigerating chamber, and the second temperature sensor is used to detect the temperature in the refrigerating chamber；
First check valve connects the outlet of the dewatering cavity and the entrance of the bypass adsorption tube, the outlet of the bypass adsorption tube
The suction nozzle is connected, the second one-way valve connects outlet and the entrance of the main road adsorption tube of the dewatering cavity, described
The outlet of main road adsorption tube connects the suction nozzle.
Further, the refrigeration dehydration device further includes the triple valve being connected with first master control borad；The absorption
Tube assembly includes refrigerating chamber, main road adsorption tube and bypass adsorption tube, and the main road adsorption tube and the entrance for bypassing adsorption tube are stretched
Enter in the refrigerating chamber, the second temperature sensor is used to detect the temperature of the refrigerating chamber；The outlet of the dewatering cavity connects
The import of the triple valve is connect, the one outlet of the triple valve connects the entrance of the bypass adsorption tube, the bypass absorption
The outlet of pipe connects the suction nozzle, another outlet of the triple valve connects the entrance of the main road adsorption tube, the master
The outlet of road adsorption tube connects the suction nozzle.
Further, the refrigeration dehydration device further includes being arranged in first semiconductor chilling plate and the second semiconductor
Radiator above cooling piece, the radiator include heat dissipating housing, the radiator fan being arranged in the heat dissipating housing and dissipate
Hot device.
Further, the VOCs adsorption tube sampling apparatus further includes the first strainer and the filter being arranged at the thief hatch
Cylinder.
Further, the second strainer is provided at the suction nozzle.
Further, the VOCs adsorption tube sampling apparatus further includes drying cylinder, and the gas outlet of the adsorption tube component is logical
The entrance that connecting tube accesses the drying cylinder is crossed, the outlet of the drying cylinder accesses the suction nozzle by connecting tube.
Further, dovetail groove is provided on the lateral wall of the outer housing of the host, on the lateral wall of the drying cylinder
It is provided with the dovetail configuration for being caught in the dovetail groove.
Further, the refrigeration dehydration device further includes at least one hanging column, the lateral wall of the outer housing of the host
On offer hanging hole corresponding with each hanging column, the hanging column is caught in the hanging hole.
Further, the pumping power device is the brushless diaphragm pump of import.
Compared with prior art, the advantages of the VOCs adsorption tube sampling apparatus of the utility model and beneficial effect is: passing through
Heating member can heat inner tube, and gas is avoided to form condensed water in opium pipe inner tube and influence absorption of the subsequent adsorbtion pipe to VOCs
Efficiency cools down to dewatering cavity by the first semiconductor chilling plate, when gas passes through dewatering cavity to gas cooling down, makes to bring about the desired sensation
Vapor condensation in body reduces the influence that vapor adsorb VOCs in absorption bottle, and passes through the second semiconductor refrigerating
Piece cools down to adsorption tube component, to cool down when gas enters adsorption tube component to gas, realizes cryogenic absorption sampling, improves
Adsorption efficiency.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be practical to this
New embodiment or attached drawing needed to be used in the description of the prior art are made one and are briefly introduced, it should be apparent that, it is described below
Attached drawing is some embodiments of the utility model, for those of ordinary skill in the art, is not being made the creative labor
Under the premise of, it can also be obtained according to these attached drawings other accompanying drawings.
Fig. 1 is the structure chart of the VOCs adsorption tube sampling apparatus of the utility model；
Fig. 2 is the main view of the VOCs adsorption tube sampling apparatus of the utility model；
Fig. 3 is the left view of the VOCs adsorption tube sampling apparatus of the utility model；
Fig. 4 is the explosive view of refrigeration dehydration device in the VOCs adsorption tube sampling apparatus of the utility model；
Fig. 5 is the dehydration device cross-sectional view that freezes in the VOCs adsorption tube sampling apparatus of the utility model；
Fig. 6 is the front view of host in the VOCs adsorption tube sampling apparatus of the utility model；
Fig. 7 is the rearview of host in the VOCs adsorption tube sampling apparatus of the utility model, and wherein drying cylinder is stuck in host
On；
Wherein, 100- refrigeration dehydration device, the first semiconductor chilling plate of 110-, the second semiconductor chilling plate of 110'-, 120-
Dewatering cavity, 121- absorption bottle, the first temperature sensor of 122-, 122'- the first condenser seat, 123- second temperature sensor,
123'- the second condenser seat, 130- adsorption tube component, 131- main road adsorption tube, 132- bypass adsorption tube, 133- main road adsorption tube
Mouth is connect, 134-, which is bypassed, adsorbs pipe nipple, 135- refrigerating chamber, 136- threeway, 137- connecting tube, 138- hanging column, 140- radiator,
141- radiator, 142- radiator fan, 143- heat dissipating housing, 150- installation frame, 160- thermal insulation cotton, the first check valve of 170-,
180- barrel-type casing, 181- air inlet, 190- adsorb pipe shell, 200- host, 210- outer housing, 211- hanging hole, 212- dovetail
Slot, 220- suction nozzle, 230- host display, 300- opium pipe, 310- thief hatch, 320- tube body, 321- inner tube, 322- heating
Band, 323- filter cylinder, 330- main body, 331- opium pipe display screen, 332- handle, 400- drying cylinder.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
In order to realize the acquisition of VOCs in exhaust gas, the present embodiment is related to a kind of VOCs adsorption tube sampling apparatus, including has
Opium pipe 300, host 200 and the refrigeration dehydration device 100 of thief hatch 310；Opium pipe 300 includes tube body 320 and main body 330, tube body
It is provided with heating member 322 outside inner tube 321 in 320, the first master control borad (not shown) is provided in main body 330, it is main first
The heating module (not shown) and temperature control module (not shown) for heating heating member 322 are provided on control plate；Host 200 includes
Outer housing 210, the second master control borad (not shown) being arranged in outer housing 210, the flow controller being connect with the second master control borad
(not shown), pumping power device (not shown) and suction nozzle 220；Dehydration device 100 of freezing includes the first semiconductor chilling plate
110, the second semiconductor chilling plate 110', the dewatering cavity 120 with absorption bottle 121, adsorption tube component 130, for detect dehydration
The second temperature sensor of first temperature sensor 122 and the temperature for detecting adsorption tube component 130 of temperature in chamber 120
123, it is sequentially connected gas outlet (not shown), dewatering cavity 120, adsorption tube component 130 and the suction nozzle 220 of opium pipe 300；First is main
Control plate controls the work of the first semiconductor chilling plate 110 until the temperature for receiving the detection of the first temperature sensor 122 is greater than first
Preset temperature, and the second semiconductor chilling plate 110' work is controlled until receiving the temperature of the detection of second temperature sensor 123
Greater than the second preset temperature；Second master control borad receives the flow of the collected gas of slave suction nozzle 220 of flow controller output
And according to the revolving speed of preset flow and preset flow control errors pumping power device, make flow compared between preset flow
Value is in preset flow error.
Specifically, as depicted in figs. 1 and 2, when being sampled using the sampling apparatus, pass through the first master control borad root first
Heating member 322 is heated according to the temperature control heating module of temperature control module feedback, in the present embodiment, heated perimeter selection exists
Between 100 DEG C -160 DEG C, realized by the first master control borad and temperature control module.The present embodiment heating member 322 is heating tape, the heating
Band is coated on outside inner tube 321 circumferentially, so that the inner tube 321 to whole length heats.When sampling exhaust gas, by opium pipe 300
It places in flue, exhaust gas enters 300 inner tube 321 of opium pipe by thief hatch 310 in flue, and heating member 322 is to exhaust gas in inner tube 321
Heating, avoid when smoke temperature humidity is higher and ambient temperature it is lower when tested gas condensed water is easily formed in inner tube 321, institute
The condensed water of generation influences adsorption tube component 130 to the adsorption efficiency of VOCs.From the gas that the gas outlet of opium pipe 300 is drawn into
Enter dewatering cavity 120 and enter adsorption tube component 130 after being dehydrated by dewatering cavity 120, in the present embodiment, in dewatering cavity 120
Temperature is detected by the first temperature sensor 122 and the temperature in adsorption tube component 130 is detected by second temperature sensor 123,
The first preset temperature (for example, 2 DEG C) and the second preset temperature (for example, 2 DEG C) are previously set in first master control borad, by the first temperature
First master control borad control, 110 work of the first semiconductor chilling plate when the temperature that degree sensor 122 detects is greater than the first preset temperature
Make, the first semiconductor chilling plate 110 is controlled when less than the first preset temperature and is stopped working, realizing reduces temperature in dewatering cavity 120
Degree, can be condensed into water hence into the vapor of the gas in dewatering cavity 120 and collect in absorption bottle 121, and by the
The first master control borad controls the second semiconductor chilling plate when the temperature that two temperature sensors 123 detect is greater than the second preset temperature
110' work, the second semiconductor chilling plate 110' is controlled when less than the second preset temperature and is stopped working, and realizes drop adsorption tube group
The temperature of part 130 carries out realizing low temperature when adsorption sampling so that the condensed gas of dewatering cavity 120 enters adsorption tube component 130
Sampling improves the adsorption efficiency to VOCs.The gas come out from the gas outlet of adsorption tube component 130 introduces the air inlet of host 200
Mouth 220, host 200 carry out constant speed closed-loop control to the flow of entire gas, to guarantee discharge stability and accuracy, specifically
Ground, when gas flows into host 200 from suction nozzle 220, flow meter modules collect gas in real time and calculate gas flow, and second
Preset flow and preset flow error are arranged in advance and is compared collected gas flow with preset flow for master control borad, when
When the fiducial value of the two is not in (such as above or below) default error range, the second master control borad control pumping power device
Revolving speed (such as reduce or increase), until both fiducial value be in (such as above or below) default error range, it is real
The stability of existing flow control, it is preferably the brushless diaphragm pump of import that power device is wherein evacuated in the present embodiment.
It is possible to most starting to enter air in pipeline when carrying out waste gas collecting using opium pipe 300 first, Huo Zhe
When entering air in connecting line when replacing the adsorption tube in adsorption tube component 130, therefore utilizing the sampling apparatus again
Not can guarantee the gas into adsorption tube is entirely the exhaust gas in flue, reduces adsorption tube to the adsorption efficiency of VOCs, for this
Problem, in the present embodiment, as shown in Figure 1, Figure 4 and Figure 5, adsorption tube component 130 includes refrigerating chamber 135, main road adsorption tube
131, adsorption tube 132, the absorption pipe nipple 133 that 131 exit of main road adsorption tube is set and setting are bypassed in bypass adsorption tube
The absorption pipe nipple 134 in 132 exits, wherein the entrance of the entrance of main road adsorption tube 131 and bypass adsorption tube 132 stretches to
In refrigerating chamber 135, the first check valve 170 and second one-way valve (not shown) are set, and accordingly, controlled by the first master control borad
First check valve 170 is connected to dewatering cavity 120 and bypasses the entrance of adsorption tube 132, is connected by the first master control borad control second one-way valve
The entrance of unconventional water cavity 120 and main road adsorption tube 131, the outlet of main road adsorption tube 131 and the outlet for bypassing adsorption tube 132 are passed through
Threeway 136 accesses suction nozzle 220 by connecting tube 137, and wherein second temperature sensor 123 is for detecting in refrigerating chamber 135
Temperature, thus can be detected simultaneously by main road adsorption tube 131 and bypass adsorption tube 132 in temperature, start acquire gas it
Before, the first master control borad first controls the first check valve 170 and connects, to 300 inner tube 321 of opium pipe, bypass adsorption tube 132 and each connection
Pipe carries out purge of gas, when flow meter modules, which collect bypass sampling volume, reaches predetermined amount (such as 300ml), the second master control
Plate control is switched on second one-way valve and disconnects the first check valve, is circulated to refrigerating chamber 135 and main road adsorption tube 131 at this time
Gas is entirely exhaust gas, improves the adsorption efficiency of main road adsorption tube 131.
Alternatively, it is provided with triple valve the first check valve 170 of substitution (not shown) and second one-way valve, dewatering cavity 120
One outlet of the import of outlet connection triple valve, triple valve connects the entrance of main road adsorption tube 131 and another outlet connects bypass
The entrance of adsorption tube 132, the outlet of main road adsorption tube 131 and the outlet for bypassing adsorption tube 132 pass through connecting tube by threeway 136
137 access suction nozzles 220, before starting to acquire gas, the control triple valve of the second master control borad first switches to connection bypass and inhales
Attached pipe 132 carries out purge of gas to 300 inner tube 321 of opium pipe, bypass adsorption tube 132 and other each connecting tubes, works as flow meter modules
Bypass sampling volume is collected when reaching predetermined amount (such as 300ml), the second master control borad control triple valve switches to connection main road
The gas of adsorption tube 131, the main road adsorption tube 131 that circulates at this time is entirely exhaust gas, improves the adsorption efficiency of main road adsorption tube 131.
Further, as shown in Figures 1 to 4, in order to improve the condensation effect to gas, refrigeration dehydration device 100 is also wrapped
Include the radiator 140 being arranged in above the first semiconductor chilling plate 110 and the second semiconductor chilling plate 110' comprising heat dissipation
Device 141, radiator fan 142 and heat dissipating housing 143.In addition, as shown in figure 4, in order to which the dehydration device 100 that will freeze is assembled to opium pipe
On 300, installation is additionally provided with to the barrel-type casing 180 on opium pipe 300, wherein one end is offered for receiving from inner tube 321
The air inlet 181 of interior gas；Shown in as shown in Figure 1, Figure 3 and Figure 4, it is provided with installation frame 150, the installation frame 150 installation to cylinder
On shape shell 180, the generally rectangular frame of the present embodiment installation frame 150 opens up on each side of its opposite two sides
There are two the first threaded hole (not shown), and open up on each side of 143 two sides of heat dissipating housing that there are two the second screw threads
Hole (not shown), successively heat dissipating housing 143 is fixed on installation frame 150 hanging column 138 by the first threaded hole and the second threaded hole；For
Facilitate and place the first temperature sensor 122 and second temperature sensor 123, is correspondingly arranged on the first condenser seat 122' and the
Two condenser seat 123' offer the first notch in the bottom of the first condenser seat 122', for being embedded in the first temperature sensor
122, so that the first temperature sensor 122 contacts dewatering cavity 120, second is offered in the bottom of the second condenser seat 123' and is lacked
Mouthful, for being embedded in second temperature sensor 123, so that second temperature sensor 123 contacts refrigerating chamber 135；In order to save first
The cooling capacity of semiconductor chilling plate 11 and/or the second semiconductor chilling plate 110', is additionally provided with thermal insulation cotton 160；And convenient for quick
Cooling capacity is transmitted, cool guiding block (not indicating) is additionally provided with.As shown in Figure 1 to Figure 4, in order to protect main road adsorption tube 131 and bypass adsorption tube
132 and avoid cooling capacity scatter and disappear, main road adsorption tube 131 and bypass adsorption tube 132 be covered with absorption pipe shell 190.
In order to avoid extraneous particulate matter or water enter opium pipe 300 and reduce the service life of opium pipe 300, as shown in Fig. 2,
Strainer (not shown) and filter cylinder 323 are provided at thief hatch 310.Further, in order to avoid particulate matter or water enter host 200
Service life that is internal and reducing host 200 or the stability and accuracy for influencing flow meter modules, are arranged at suction nozzle 220
Have strainer (not shown), and as shown in Figure 1, leading to by the gas come out from main road adsorption tube 131 and bypass adsorption tube 132
It is passed through in suction nozzle 220 again after crossing the drying of drying cylinder 400.In the present embodiment, carry drying cylinder 400 for convenience, such as Fig. 1 and
Shown in Fig. 7, multiple groups dovetail groove is provided on the rear wall of outer housing 220, every group of dovetail groove includes two dovetails of horizontally-arranged setting
Slot 212, accordingly, there are two the dovetail configuration (not shown) with dovetail groove cooperation, swallows for setting on the lateral wall of drying cylinder 400
Stern construction is caught in dovetail groove, and drying cylinder 400 and host 200 are connected, and the quantity of certain every group of dovetail groove is not limited to two.
As shown in figures 1 and 3, due to 138 outer end of hanging column be include the big first segment of cross-sectional area gradual change and the second section
I-shaped structure, accordingly, offered on the lateral wall of outer housing 220 with two hanging holes 211, hanging hole 211 be include macropore
The water-drop-shaped hanging hole of diameter and small-bore, wherein the radical length of first segment is less than large aperture and is greater than small-bore, first in mounting
First first segment is embedded in large aperture with one heart, and then mobile host 200 is moved to small-bore, and hanging column 138 cannot be from small-bore at this time
Out, to realize the mounting of host 200.
In addition, opium pipe 300 is preferably surely held for the ease of sample collector, as shown in Figure 1, being provided with handle in main body 330
332.As shown in figure 3, being additionally provided with display screen 331 in main body 330, pass through display module (not shown) and the first master control borad
It is connected, is displayed for the temperature of heating tape.And as shown in fig. 6, being also equipped with display screen 230 on host 200, lead to
It crosses display module (not shown) to be connected with the second master control borad, for showing gas flow, sampling volume, sampling time etc., be convenient for
Sample collector checks and records.
The VOCs adsorption tube sampling apparatus of the utility model can heat inner tube 321 by heating tape 322, avoid gas
Condensed water is formed in 300 inner tube 321 of opium pipe and influences subsequent main road adsorption tube 131 to the adsorption efficiency of VOCs, passes through first
Semiconductor chilling plate 110 cools down to dewatering cavity 120, when gas passes through dewatering cavity 120 to gas cooling down, so that in gas
Vapor condensation reduce the influence that vapor adsorb VOCs in absorption bottle 121, and pass through the second semiconductor chilling plate
110' cools down to refrigerating chamber 135, cools down to enter refrigerating chamber 135 in gas to gas, i.e., to entrance main road adsorption tube 131
Gas cooling, realizes 131 low temperature samples of main road adsorption tube, improves adsorption efficiency；The first check valve 170 is connected by switching control
And second one-way valve, the switching to main road adsorption tube 131 and bypass adsorption tube 132 is realized, to inner tube 321, bypass adsorption tube 132
Purge of gas is carried out with each connecting tube, guarantees that entering the gas of main road adsorption tube 131 is entirely exhaust gas, improves adsorption efficiency；It is main
Machine 200 carries out constant speed closed-loop control by flow of the flow meter modules to entire gas, guarantees discharge stability and accuracy.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (10)
1. a kind of VOCs adsorption tube sampling apparatus, the opium pipe including having thief hatch, which is characterized in that further include host and refrigeration
Dehydration device；The opium pipe includes tube body and main body, is provided with heating member outside the intracorporal inner tube of pipe, sets in the main body
It is equipped with the first master control borad, heating module and temperature control mould for heating the heating member are provided on first master control borad
Block；The stream that the host includes outer housing, intracorporal second master control borad of the shell is arranged in, connect with second master control borad
Amount controller, pumping power device and suction nozzle；The refrigeration dehydration device includes the first semiconductor chilling plate, the second semiconductor
Cooling piece, the dewatering cavity with absorption bottle, adsorption tube component, the first temperature sensor for detecting the dehydration cavity temperature
With the second temperature sensor of the temperature for detecting the adsorption tube component, it is sequentially connected gas outlet, the dehydration of the opium pipe
Chamber, adsorption tube component and suction nozzle；First master control borad controls the work of the first semiconductor chilling plate until receiving described the
The temperature of one temperature sensor detection is greater than the first preset temperature, and controls the work of the second semiconductor chilling plate until receiving institute
The temperature for stating second temperature sensor detection is greater than the second preset temperature；It is defeated that second master control borad receives the flow controller
Out from the flow of the collected gas of the suction nozzle and the pumping according to preset flow and preset flow control errors is dynamic
The revolving speed of power device is in the fiducial value between the flow and the preset flow in the preset flow error.
2. VOCs adsorption tube sampling apparatus according to claim 1, which is characterized in that the refrigeration dehydration device further includes
The first check valve and second one-way valve being connected with first master control borad；The adsorption tube component includes refrigerating chamber, main road suction
The entrance of attached pipe and bypass adsorption tube, the main road adsorption tube and bypass adsorption tube protrudes into the refrigerating chamber；Described second
Temperature sensor is used to detect temperature in the refrigerating chamber, and first check valve connects the outlet of the dewatering cavity and described
The entrance of adsorption tube is bypassed, the outlet of the bypass adsorption tube connects the suction nozzle, and the second one-way valve connection is described de-
The outlet of the outlet of water cavity and the entrance of the main road adsorption tube, the main road adsorption tube connects the suction nozzle.
3. VOCs adsorption tube sampling apparatus according to claim 1, which is characterized in that the refrigeration dehydration device further includes
The triple valve being connected with first master control borad；The adsorption tube component include refrigerating chamber, main road adsorption tube and bypass adsorption tube,
The entrance of the main road adsorption tube and bypass adsorption tube protrudes into the refrigerating chamber, and the second temperature sensor is for detecting
Temperature in the refrigerating chamber；The outlet of the dewatering cavity connects the import of the triple valve, the one outlet of the triple valve
Connect the entrance of the bypass adsorption tube, the outlet of the bypass adsorption tube connects the suction nozzle, the triple valve it is another
A outlet connects the entrance of the main road adsorption tube, and the outlet of the main road adsorption tube connects the suction nozzle.
4. VOCs adsorption tube sampling apparatus according to claim 1, which is characterized in that the refrigeration dehydration device further includes
Radiator above first semiconductor chilling plate and the second semiconductor chilling plate is set, and the radiator includes dissipating
The radiator fan and radiator that heat is covered, is arranged in the heat dissipating housing.
5. VOCs adsorption tube sampling apparatus according to any one of claim 1-3, which is characterized in that further include that setting exists
The first strainer and filter cylinder at the thief hatch.
6. VOCs adsorption tube sampling apparatus according to claim 5, which is characterized in that be provided with second at the suction nozzle
Strainer.
7. VOCs adsorption tube sampling apparatus according to claim 5, which is characterized in that it further include drying cylinder, the absorption
The gas outlet of tube assembly accesses the entrance of the drying cylinder by connecting tube, and the outlet of the drying cylinder accesses institute by connecting tube
State suction nozzle.
8. VOCs adsorption tube sampling apparatus according to claim 7, which is characterized in that the outside of the outer housing of the host
It is provided with dovetail groove on wall, the dovetail configuration for being caught in the dovetail groove is provided on the lateral wall of the drying cylinder.
9. VOCs adsorption tube sampling apparatus according to any one of claim 1-3, which is characterized in that the refrigeration dehydration
Device further includes at least one hanging column, and hanging hole corresponding with each hanging column, institute are offered on the lateral wall of the outer housing of the host
Hanging column is stated to be caught in the hanging hole.
10. VOCs adsorption tube sampling apparatus according to any one of claim 1-3, which is characterized in that the pumping is dynamic
Power device is the brushless diaphragm pump of import.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820867592.0U CN208588588U (en) | 2018-06-06 | 2018-06-06 | A kind of VOCs adsorption tube sampling apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820867592.0U CN208588588U (en) | 2018-06-06 | 2018-06-06 | A kind of VOCs adsorption tube sampling apparatus |
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| Publication Number | Publication Date |
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| CN208588588U true CN208588588U (en) | 2019-03-08 |
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| CN201820867592.0U Active CN208588588U (en) | 2018-06-06 | 2018-06-06 | A kind of VOCs adsorption tube sampling apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760412A (en) * | 2018-06-06 | 2018-11-06 | 青岛海纳光电环保有限公司 | A kind of VOCs adsorption tubes sampling apparatus |
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2018
- 2018-06-06 CN CN201820867592.0U patent/CN208588588U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760412A (en) * | 2018-06-06 | 2018-11-06 | 青岛海纳光电环保有限公司 | A kind of VOCs adsorption tubes sampling apparatus |
| CN108760412B (en) * | 2018-06-06 | 2024-01-30 | 青岛崂应海纳光电环保集团有限公司 | VOCs adsorbs tub sampling device |
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Address after: High tech Zone of Shandong Province, Qingdao City, 266109 East Road No. 379 Patentee after: Qingdao Laoying Haina Photoelectric Environmental Protection Group Co., Ltd. Address before: High tech Zone of Shandong Province, Qingdao City, 266109 East Road No. 379 Patentee before: Qingdao Haina Guangdian Environmental Protection Co., Ltd. |