CN210953545U - Sulfur trioxide sampling device - Google Patents
Sulfur trioxide sampling device Download PDFInfo
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- CN210953545U CN210953545U CN201921705625.2U CN201921705625U CN210953545U CN 210953545 U CN210953545 U CN 210953545U CN 201921705625 U CN201921705625 U CN 201921705625U CN 210953545 U CN210953545 U CN 210953545U
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Abstract
The utility model provides a sulfur trioxide sampling device, which comprises a case, wherein a condensation bottle is arranged in the case, the front end and the rear end of the condensation bottle are respectively provided with an air inlet end and an air outlet end, the air inlet end is connected with a sampling gun, a heat tracing pipe is arranged in the sampling gun, a heating sleeve is sleeved at the joint of the air inlet end and the sampling gun and is clamped with a ball grinding clamp, and the two ends of the heating pipe are connected by sticking and pulling a buckle; the air outlet end is connected with a hose joint, and a ball grinding clamp is clamped at the joint. The utility model adopts the heat tracing pipe and the heating sleeve, so that the flue gas is higher than the acid dew point of sulfur trioxide in the temperature of about 260 ℃ in the whole process from the sampling port to the condensation bottle, the flue gas can not be condensed in the sampling process, and the measured sulfur trioxide content value is ensured to be accurate; the heating jacket is adhered to a ring by adopting an adhesive pull button, and is convenient to disassemble when the condensation bottle is replaced. The mode that adopts ball mill mouthful to press from both sides to be equipped with O type circle realizes connecting the lock solid between sampling rifle and condensation bottle, makes the change operation of condensation bottle more convenient, swift.
Description
Technical Field
The utility model belongs to flue gas pollutant detection area especially relates to a sulfur trioxide sampling device.
Background
Sulfuric acid mist is also called acid mist and generally refers to mist formed by a large number of floating sulfuric acid particles. Sulfuric acid mist is mostly caused by sulfur oxide-containing waste gas discharged in the processes of combustion of fossil fuel or smelting of minerals, production of sulfuric acid and the like, and is an atmospheric pollution phenomenon. The sulfuric acid mist occurs both in plants for the direct production or use of sulfuric acid and in plants for the raw materials and fuels of coal, petroleum or heavy oil, and therefore it is necessary to perform the sampling measurement and the analytical monitoring of the sulfur oxides, in particular sulfur trioxide, in the above-mentioned plant exhaust gases. The current sampling methods at home and abroad mainly comprise a controlled condensation method and a solution absorption method, the two sampling methods have strict requirements on the temperature of the flue gas in the sampling process and must be higher than the acid dew point temperature (the temperature is kept between 250 ℃ and 260 ℃), otherwise, the sampled flue gas is condensed, and the measured value is lower. Although the heating device is implanted in the sampling gun of the existing sulfur trioxide sampling instrument to heat the collected flue gas, the heating treatment is not carried out at the joint between the sampling gun and the collecting bottle, so that partial sulfur trioxide is condensed, and the sampling data is inaccurate; a condensation control method is recommended in the performance acceptance test specification DL/T260-2012 of the flue gas denitration device of the coal-fired power plant, but an instrument condensation bottle adopting the condensation control method is not easy to replace, and the replacement process is complex and time-consuming in operation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses do not realize whole journey companion's heat and the difficult technical problem who changes of condensation bottle to current sulfur trioxide sampling device, provide a sulfur trioxide sampling device with companion's heat jacket and condensation bottle quick assembly disassembly structure.
In order to achieve the above object, the utility model discloses a technical scheme be:
a sulfur trioxide sampling device comprises a case, wherein a condensation bottle is arranged in the case, the front end and the rear end of the condensation bottle are respectively provided with an air inlet end and an air outlet end, the air inlet end is connected with a sampling gun, a heat tracing pipe is arranged in the sampling gun, a heating sleeve is sleeved at the joint of the air inlet end and the sampling gun and is clamped with a ball grinding clamp, and the two ends of the heating belt are connected through a bonding pull buckle; the air outlet end is connected with a hose joint, and a ball grinding clamp is clamped at the joint.
Preferably, the hose connector is sequentially connected with a buffer bottle, a drying pipe, a flow meter, a pressure meter and an air pump through a hose.
Preferably, the condensation bottle is provided with a water inlet and a water outlet, and the water inlet and the water outlet are connected to the water bath tank through water pipes.
Preferably, the case is divided into an upper case and a lower case, and one side of the upper case is hinged to the lower case.
Preferably, the inner wall of the case is provided with an insulating layer.
Preferably, the electric heating device further comprises an electric cabinet, and the electric cabinet is electrically connected with the electric heating belt and the heating sleeve.
Preferably, an O-shaped ring is arranged inside the connection part of the air inlet pipe and the sampling gun.
Preferably, an O-ring is arranged in the joint of the air outlet pipe and the hose connector.
Compared with the prior art, the utility model discloses an advantage lies in with positive effect:
1. this sulfur trioxide sampling device adopts companion's heat pipe and heating jacket, makes the flue gas be in the temperature about 260 ℃ from the sample connection to the condensation bottle whole journey, is higher than sulfur trioxide's acid dew point, makes it can not condense at the sampling in-process, guarantees that the sulfur trioxide content value that records is accurate.
2. The heating jacket is adhered to a ring by adopting an adhesive pull button, and is convenient to disassemble when the condensation bottle is replaced.
3. Because the condensation bottle needs frequent change, this device adopts the mode that the ball grinds the mouth clamp and is equipped with O type circle to realize connecting the lock solid between sampling rifle and condensation bottle, makes the change operation of condensation bottle convenient more, swift.
Drawings
FIG. 1 is a schematic view of the overall structure of the sulfur trioxide sampling device of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the sulfur trioxide sampling device of the present invention;
in the above figures: 1. a sampling gun; 11. heating a jacket; 2. a chassis; 21. mounting the case; 22. a lower chassis; 23. locking; 3. a condensation bottle; 31. an air inlet end; 32. an air outlet end; 33. a water inlet; 34. a water outlet; 35. a hose connector; 4. a ball grinding nip; 5. an electric cabinet; 6. a buffer bottle; 7. a drying tube; 8. a flow meter; 81. a pressure gauge; 9. an air pump; 10. a water bath box.
Detailed Description
For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings and examples.
Example (b): as shown in figures 1 and 2, the sulfur trioxide sampling device is used for sampling sulfur trioxide gas in exhaust gas of factories and the like, and comprises a case 2, wherein a condensation bottle 3 is contained in the case 2, one end of the condensation bottle 3 is connected with a sampling gun 1, and the other end of the condensation bottle is connected with other gas treatment devices. The case 2 is divided into an upper case 21 and a lower case, and one side of the upper case 21 is hinged to the lower case 22. A lock catch 23 is provided at the other side of the upper cabinet 21 corresponding to the lower cabinet 22, so as to facilitate the opening of the cabinet for replacing the internal condenser bottle. The inner wall of the case is also provided with a heat insulation layer, so that heat conduction inside and outside the case is reduced.
The condensation bottle 3 is divided into an inner layer and an outer layer, the inner layer is a coiled pipe, and the front end and the rear end of the condensation bottle 3 are respectively provided with an air inlet end 31 and an air outlet end 32. The air inlet end 31 is sleeved in an air outlet of the sampling gun 1, an O-shaped ring is arranged in a joint of the air inlet end and the air outlet end to enhance sealing, and a joint of the air inlet end and the air outlet end is coated with a heating sleeve 11 and clamped with a ball grinding clamp 4. The heating jacket 11 can be unfolded into a belt shape, and both ends of the heating jacket are provided with sticky pull buckles, so that the heating jacket can be conveniently bound outside the interface. The inner wall of the case is also provided with a heat-insulating layer clapboard, and the purpose is to form a sealed heat-insulating cavity at the joint from the sampling gun to the condensing bottle, reduce the heat conduction inside and outside the case and be favorable for keeping the heating temperature of the heating jacket to the sampling gas. Heat tracing pipes are arranged in the sampling gun 1, the heat tracing pipes and the heating sleeve 11 are connected to the electric cabinet 5 through circuits, and the heating temperature is controlled and adjusted through the electric cabinet 5. The air outlet end 32 of the condensation bottle 3 extends out of the case and is connected with a hose connector 35, an O-shaped ring is arranged inside the joint, and a ball grinding clamp 4 is clamped outside the joint. The outer layer of the condensation bottle 3 is provided with a water inlet 33 and a water outlet 34, the water inlet 33 and the water outlet 34 are connected to the water bath box 10 through water pipes, and the water bath box 10 provides circulating water with the temperature of 50-90 ℃ for the condensation bottle 3.
The hose connector 35 is sequentially connected with a buffer bottle 6, a drying pipe 7, a flowmeter 8, a pressure gauge 81 and an air pump 9 through a hose, wherein the flowmeter 8 is used for controlling the gas flow entering the sampling gun 1, and the error is not more than +/-2.0%. In order to fix the sampling device, a tripod is also arranged at the bottom of the case 2.
The sulfur trioxide sampling device has the working process that: the air pump 9 is started, the sampling gun 1 is used for extracting the flue gas from the flue, and the heat tracing pipe in the sampling gun 1 continuously heats the gas, so that the temperature of the flue gas in the sampling gun 1 is kept at 250-260 ℃ and higher than the acid dew point temperature, and the gas such as sulfur trioxide and the like are prevented from being liquefied and dissolved by water vapor in the flue gas. The flue gas increases convenient to detach's heating jacket 11 alone in the joint department of sampling rifle 1 and condensation bottle 3, lasts for the flue gas keeps warm, prevents that sulfur trioxide here condensation from leading to the value on the low side. Then, the flue gas enters the condensation bottle 3, sulfur trioxide in the flue gas condenses to form sulfuric acid mist with proper particle size, and the sulfuric acid mist is captured under the action of inertia, and the inertia force is provided by a pump in the water bath box 10. The air pump 9 provides 6-15L/min of flow, which is the power source of the whole air path device.
The sulfur trioxide sampling device adopts the heat tracing pipe and the heating sleeve 11, so that the temperature of the flue gas from the sampling port to the condensation bottle 3 is about 260 ℃ and higher than the acid dew point of sulfur trioxide, the flue gas cannot be condensed in the sampling process, and the measured sulfur trioxide content value is accurate; the heating jacket 11 is adhered to form a ring by adopting an adhesive pull button, and is convenient to disassemble when the condensation bottle 3 is replaced. Because the condensation bottle 3 needs often to be changed, this device adopts the mode that the ball mill mouth presss from both sides 4 and is equipped with O type circle to realize connecting the lock solid between sampling rifle 1 and condensation bottle 3, makes the change operation of condensation bottle 3 more convenient, swift.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a sulfur trioxide sampling device, includes quick-witted case, its characterized in that: a condensing bottle is arranged in the case, the front end and the rear end of the condensing bottle are respectively an air inlet end and an air outlet end, the air inlet end is connected with a sampling gun, a heat tracing pipe is arranged in the sampling gun, a heating sleeve is sleeved at the joint of the air inlet end and the sampling gun and is clamped with a ball grinding clamp, and the two ends of the heating belt are connected through sticky pull buttons; the air outlet end is connected with a hose joint, and a ball grinding clamp is clamped at the joint.
2. The sulfur trioxide sampling device of claim 1, characterized in that: the hose connector is sequentially connected with a buffer bottle, a drying pipe, a flowmeter, a pressure gauge and an air pump through a hose.
3. The sulfur trioxide sampling device of claim 2, characterized in that: the condensation bottle is provided with a water inlet and a water outlet, and the water inlet and the water outlet are connected to the water bath tank through water pipes.
4. The sulfur trioxide sampling device of claim 3, characterized in that: the case is divided into an upper case and a lower case, and one side of the upper case is hinged to the lower case.
5. The sulfur trioxide sampling device of claim 4, characterized in that: and the inner wall of the case is provided with a heat-insulating layer.
6. The sulfur trioxide sampling device of claim 2, characterized in that: the electric control box is electrically connected with the electric heating belt and the heating sleeve.
7. The sulfur trioxide sampling device of claim 1, characterized in that: an O-shaped ring is arranged at the joint of the air inlet pipe and the sampling gun.
8. The sulfur trioxide sampling device of claim 7, characterized in that: an O-shaped ring is arranged in the joint of the air outlet pipe and the hose connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921705625.2U CN210953545U (en) | 2019-10-12 | 2019-10-12 | Sulfur trioxide sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921705625.2U CN210953545U (en) | 2019-10-12 | 2019-10-12 | Sulfur trioxide sampling device |
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| CN210953545U true CN210953545U (en) | 2020-07-07 |
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| CN201921705625.2U Active CN210953545U (en) | 2019-10-12 | 2019-10-12 | Sulfur trioxide sampling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112946205A (en) * | 2021-04-27 | 2021-06-11 | 南京呈禾信息科技有限公司 | Portable low-adsorption high-temperature pretreatment device |
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2019
- 2019-10-12 CN CN201921705625.2U patent/CN210953545U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112946205A (en) * | 2021-04-27 | 2021-06-11 | 南京呈禾信息科技有限公司 | Portable low-adsorption high-temperature pretreatment device |
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Address after: 266000 No. 1, Yueyang Road, Chengyang District, Qingdao City, Shandong Patentee after: Qingdao Zhongrui Intelligent Instrument Co.,Ltd. Address before: 266108 No.1 XueYue Road, Chengyang District, Qingdao, Shandong Province Patentee before: QINGDAO ZHONGRUI INTELLIGENT INSTRUMENT Co.,Ltd. |