CN216116976U - Sampling device for VOCs waste gas treatment - Google Patents
Sampling device for VOCs waste gas treatment Download PDFInfo
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- CN216116976U CN216116976U CN202122373710.7U CN202122373710U CN216116976U CN 216116976 U CN216116976 U CN 216116976U CN 202122373710 U CN202122373710 U CN 202122373710U CN 216116976 U CN216116976 U CN 216116976U
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Abstract
The utility model discloses a sampling device for VOCs waste gas treatment, which comprises a working chamber, a gas storage chamber and an inert gas chamber, wherein an air pump is fixedly arranged on the inner bottom surface of the working chamber, the air inlet end of the air pump is horizontally communicated with one end of an air inlet pipe, the other end of the air inlet pipe is communicated with an air inlet, the air outlet end of the air pump is horizontally communicated with one end of an air outlet pipe, and the other end of the air outlet pipe is communicated with the gas storage chamber; the gas storage chamber inner wall sliding connection has first piston, and the gas storage chamber bottom surface is provided with the gas outlet, and one of them gas outlet inner wall intercommunication has the feedback room, and the feedback room inner wall is provided with the pressure valve, and every gas outlet threaded connection has knob switch to knob switch bottom export can be dismantled and be connected with the sample gasbag. This kind of sampling device is used in VOCs waste gas treatment, the reservoir is full of gas, and the pressure valve can automatic cutout reservoir and the intercommunication between the outlet duct, and reduction personnel's working strength, it is very convenient, avoid taking off the sample gasbag simultaneously in the twinkling of an eye, the gaseous outflow of sample to and a small amount of air gets into the gasbag.
Description
Technical Field
The utility model relates to the technical field of waste gas sampling devices, in particular to a sampling device for VOCs waste gas treatment.
Background
The VOCs waste gas refers to organic compounds with saturated vapor pressure of more than 70.91Pa, boiling point of 50-260 ℃ below under the standard atmospheric pressure of 101.3kPa and initial boiling point of 250 ℃.
The existing sampling device for VOCs waste gas treatment needs personnel to observe a measuring meter outside the sampling device constantly to determine whether the gas storage chamber is full of gas or not and further determine whether to stop operating the gas pump or not when gas sampling is finished, is very inconvenient, and when the air bag is taken down after sampling is finished, sampled gas flows out and the sampled air bag is mixed with a small amount of air, and because the air flows, the gas in the gas storage chamber is slightly different from the outside air, the sampling accuracy in a certain time can be influenced,
in order to solve the problems, the sampling device for VOCs waste gas treatment is provided by improving the sampling device.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides the following technical scheme:
the utility model provides a sampling device for VOCs waste gas treatment, which comprises a working chamber, a gas storage chamber and an inert gas chamber, wherein an air pump is fixedly arranged on the bottom surface in the working chamber through bolts;
the inner wall of the air storage chamber is connected with a first piston in a sliding manner, the bottom surface of the air storage chamber is provided with a plurality of air outlets with control valves, the inner wall of one of the air outlets is communicated with a feedback chamber through a pipeline, the inner wall of the feedback chamber is provided with a pressure valve, the inner wall of the air outlet pipe is provided with a groove matched with the pressure valve, and an auxiliary switch for controlling the operation of the air pump is arranged in the groove;
each gas outlet has a knob switch through the threaded connection that the outer wall bottom set up, and the knob switch bottom outlet can be dismantled and be connected with the sample gasbag.
As a preferable technical scheme of the utility model, the inner top surface and the inner bottom surface of the air storage chamber are vertically and rotatably connected with a threaded rod through a sealing bearing, one end of the threaded rod, which extends to the top surface of the air storage chamber, is coaxially and fixedly connected with a hand wheel, and the outer wall of the threaded rod is in sealing threaded connection with a first piston.
As a preferable technical solution of the present invention, the pressure valve includes a second piston, a blocking rod and a return spring, the inner wall of the feedback chamber is slidably connected with the second piston, the top surface of the second piston is fixedly connected with the blocking rod, the return spring is fixedly connected between the second piston and the top surface of the feedback chamber, and the return spring is sleeved on the blocking rod.
In a preferred embodiment of the present invention, a third piston is slidably connected to an inner wall of the inert gas chamber, a push rod is horizontally and fixedly connected to a side of the third piston away from the working chamber, a handle is connected to one end of the push rod extending to an outside of the inert gas chamber, and the inert gas chamber is communicated with the gas storage chamber through a tesla valve.
As a preferable technical scheme of the utility model, a sealing ring is arranged at the joint of the air inlet pipe and the air inlet.
As a preferred technical scheme of the utility model, a coarse filter screen for filtering large-particle impurities is fixedly arranged in the air inlet through bolts.
As a preferred technical scheme of the utility model, the top surface of the working chamber is provided with a main switch for controlling the operation of the air pump, and the top surface of the inert gas chamber is provided with an inflation inlet.
The utility model has the beneficial effects that:
the utility model provides a this kind of sampling device is used in VOCs waste gas treatment, through the cooperation between feedback room, pressure valve and the outlet duct inner wall recess, be full of gas with the reservoir through the air pump, reach the certain degree at reservoir atmospheric pressure, the pressure valve can the automatic intercommunication between cut off reservoir and the outlet duct, and the electric power supply of the inside auxiliary switch automatic cutout air pump of recess simultaneously, air pump shutdown, reduction personnel's working strength, it is very convenient.
Two, this kind of sampling device is used in VOCs waste gas treatment is provided with rotary switch through between gas outlet and the sample gasbag, after rotary switch and gas outlet intercommunication, open the passageway between gas outlet and the sample gasbag through rotary switch, begin the sample, after the sample is accomplished, close the passageway between gas outlet and the sample gasbag through rotary switch, avoid taking off the sample gasbag in the twinkling of an eye, the sample gas flows to and a small amount of air gets into the gasbag.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic sectional view of a sampling device for VOCs waste gas treatment according to the present invention;
FIG. 2 is an enlarged schematic view of the sampling device for VOCs waste gas treatment of the present invention at the position of FIG. 1A;
FIG. 3 is an enlarged schematic view of the sampling device for VOCs waste gas treatment shown in FIG. 1B;
in the figure: 1. a working chamber; 101. an air inlet; 2. an air storage chamber; 201. an air outlet; 3. an inert gas chamber; 4. an air pump; 5. an air inlet pipe; 6. an air outlet pipe; 7. a first piston; 8. a feedback chamber; 901. a second piston; 902. a plugging rod; 903. a return spring; 9. a pressure valve; 10. A threaded rod; 11. a third piston; 12. a push rod; 13. a knob switch; 14. and (4) sampling the air bag.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1-3, a sampling device for treating VOCs waste gas comprises a working chamber 1, a gas storage chamber 2 and an inert gas chamber 3, wherein an air pump 4 is fixedly installed on the inner bottom surface of the working chamber 1 through bolts, the air inlet end of the air pump 4 is horizontally communicated with one end of an air inlet pipe 5, the other end of the air inlet pipe 5 is communicated with an air inlet 101 arranged at the left side of the working chamber 1, the air outlet end of the air pump 4 is horizontally communicated with one end of an air outlet pipe 6, and the other end of the air outlet pipe 6 is communicated with the gas storage chamber 2;
the inner wall of the air storage chamber 2 is connected with a first piston 7 in a sliding manner, the bottom surface of the air storage chamber 2 is provided with a plurality of air outlets 201 with control valves, the inner wall of one air outlet 201 is communicated with a feedback chamber 8 through a pipeline, the inner wall of the feedback chamber 8 is provided with a pressure valve 9, the inner wall of the air outlet pipe 6 is provided with a groove matched with the pressure valve 9, and an auxiliary switch for controlling the operation of the air pump 4 is arranged inside the groove;
each air outlet 201 is connected with a knob switch 13 through a thread arranged at the bottom of the outer wall, and an outlet at the bottom end of the knob switch 13 is detachably connected with a sampling air bag 14.
The top surface is connected with threaded rod 10 through the vertical rotation of sealed bearing with interior bottom surface in the gas receiver 2, and threaded rod 10 extends to the coaxial fixedly connected with hand wheel of 2 top surfaces of gas receiver, is convenient for adjust threaded rod 10 through the hand wheel to threaded rod 10 outer wall sealing thread connection has first piston 7.
The pressure valve 9 comprises a second piston 901, a blocking rod 902 and a return spring 903, the inner wall of the feedback chamber 8 is slidably connected with the second piston 901, the top surface of the second piston 901 is fixedly connected with the blocking rod 902, the return spring 903 is fixedly connected between the second piston 901 and the inner top surface of the feedback chamber 8, and the return spring 903 is sleeved on the blocking rod 902.
3 inner wall sliding connection in inert gas room has third piston 11, 1 one side horizontal fixedly connected with push rod 12 of studio is kept away from to third piston 11, push rod 12 runs through and extends to 3 outside one ends in inert gas room and is connected with the handle, after the sample is accomplished, let in inert gas room 3, rethread third piston 11 impresses inert gas in the gas receiver 2, push down first piston 7 through threaded rod 10, it is clean with remaining sample gas in the gas receiver 2, avoid influencing next sample result, and inert gas room 3 and gas receiver 2 are through the Tesla valve intercommunication, through the Tesla valve, make the gas unidirectional flow between inert gas room 3 and the gas receiver 2.
And a sealing ring is arranged at the joint of the air inlet pipe 5 and the air inlet 101.
A coarse filter screen for filtering large-particle impurities is fixedly installed inside the air inlet 101 through bolts.
The top surface of the working chamber 1 is provided with a main switch for controlling the operation of the air pump 4, and the top surface of the inert gas chamber 3 is provided with an inflation inlet.
The working principle is as follows: this kind of sampling device is used in VOCs waste gas treatment, when using, through air pump 4 with gas suction gas receiver 2 in, gas receiver 2 internal gas pressure reaches certain degree. The air pump 4 is stopped by cutting off the channel between the air outlet pipe 6 and the air storage chamber 2 through the pressure valve 9, and then the first piston 7 is controlled by the hand wheel and the threaded rod 10 to press the air in the air storage chamber 2 into the sampling air bag 14.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A sampling device for VOCs waste gas treatment comprises a working chamber (1), a gas storage chamber (2) and an inert gas chamber (3), and is characterized in that an air pump (4) is fixedly installed on the inner bottom surface of the working chamber (1) through a bolt, the air inlet end of the air pump (4) is horizontally communicated with one end of an air inlet pipe (5), the other end of the air inlet pipe (5) is communicated with an air inlet (101) arranged on the left side of the working chamber (1), the air outlet end of the air pump (4) is horizontally communicated with one end of an air outlet pipe (6), and the other end of the air outlet pipe (6) is communicated with the gas storage chamber (2);
the inner wall of the air storage chamber (2) is connected with a first piston (7) in a sliding mode, the bottom surface of the air storage chamber (2) is provided with a plurality of air outlets (201) with control valves, the inner wall of one air outlet (201) is communicated with a feedback chamber (8) through a pipeline, the inner wall of the feedback chamber (8) is provided with a pressure valve (9), the inner wall of the air outlet pipe (6) is provided with a groove matched with the pressure valve (9), and an auxiliary switch for controlling the operation of the air pump (4) is arranged inside the groove;
every gas outlet (201) have knob switch (13) through the screw thread threaded connection that outer wall bottom set up, and knob switch (13) bottom export can be dismantled and be connected with sample gasbag (14).
2. The sampling device for VOCs waste gas treatment according to claim 1, characterized in that the top surface and the bottom surface of the air storage chamber (2) are vertically and rotatably connected with a threaded rod (10) through a sealing bearing, the threaded rod (10) extends to one end of the top surface of the air storage chamber (2) and is coaxially and fixedly connected with a hand wheel, and the outer wall of the threaded rod (10) is in sealing threaded connection with a first piston (7).
3. The sampling device for VOCs exhaust gas treatment according to claim 1, wherein the pressure valve (9) comprises a second piston (901), a blocking rod (902) and a return spring (903), the second piston (901) is connected to the inner wall of the feedback chamber (8) in a sliding manner, the blocking rod (902) is fixedly connected to the top surface of the second piston (901), the return spring (903) is fixedly connected between the second piston (901) and the inner top surface of the feedback chamber (8), and the return spring (903) is sleeved on the blocking rod (902).
4. The sampling device for treating VOCs waste gas according to claim 1, wherein a third piston (11) is slidably connected to the inner wall of the inert gas chamber (3), a push rod (12) is horizontally and fixedly connected to one side of the third piston (11) far away from the working chamber (1), a handle is connected to one end of the push rod (12) penetrating and extending to the outside of the inert gas chamber (3), and the inert gas chamber (3) is communicated with the gas storage chamber (2) through a Tesla valve.
5. The sampling device for treating the waste gas of the VOCs according to claim 1, wherein a sealing ring is arranged at the joint of the air inlet pipe (5) and the air inlet (101).
6. The sampling device for treating the waste gas of the VOCs according to claim 1, wherein a coarse filter screen for filtering large-particle impurities is fixedly installed inside the air inlet (101) through bolts.
7. The sampling device for treating the waste gas of the VOCs according to claim 1, wherein a main switch for controlling the operation of the air pump (4) is arranged on the top surface of the working chamber (1), and an inflation inlet is arranged on the top surface of the inert gas chamber (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122373710.7U CN216116976U (en) | 2021-09-28 | 2021-09-28 | Sampling device for VOCs waste gas treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122373710.7U CN216116976U (en) | 2021-09-28 | 2021-09-28 | Sampling device for VOCs waste gas treatment |
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| CN216116976U true CN216116976U (en) | 2022-03-22 |
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| CN202122373710.7U Active CN216116976U (en) | 2021-09-28 | 2021-09-28 | Sampling device for VOCs waste gas treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870969A (en) * | 2022-03-31 | 2022-08-09 | 安徽德昌药业股份有限公司 | Pseudo-ginseng rhizome broken wall sliced medicinal herbs shredding device |
-
2021
- 2021-09-28 CN CN202122373710.7U patent/CN216116976U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114870969A (en) * | 2022-03-31 | 2022-08-09 | 安徽德昌药业股份有限公司 | Pseudo-ginseng rhizome broken wall sliced medicinal herbs shredding device |
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