CN211205914U - Continuous online quantitative sampling device of high-temperature high-pressure reaction kettle - Google Patents
Continuous online quantitative sampling device of high-temperature high-pressure reaction kettle Download PDFInfo
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- CN211205914U CN211205914U CN201921910131.8U CN201921910131U CN211205914U CN 211205914 U CN211205914 U CN 211205914U CN 201921910131 U CN201921910131 U CN 201921910131U CN 211205914 U CN211205914 U CN 211205914U
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 35
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- 238000002955 isolation Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 abstract description 8
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Abstract
The utility model discloses a continuous online quantitative sampling device of a high-temperature high-pressure reaction kettle, which comprises a sampling chamber and a low-temperature cavity; the low-temperature cavity is in contact with the sampling chamber in a fitting manner, and the sampling chamber is cooled; a first gas pipe and a second gas pipe are communicated with the sampling chamber; one end of the first gas pipe, which is far away from the sampling chamber, is communicated with the exhaust end of the reaction kettle; the first gas transmission pipe is provided with a first stop valve; a second stop valve is arranged on the second gas transmission pipe; the bottom of the sampling chamber is also communicated with a first connecting and leading pipe; a liquid collecting barrel is communicated with one end of the first lead connecting pipe, which is far away from the sampling chamber; the collection of a gas phase sample and a liquid phase sample is respectively realized by utilizing the second gas conveying pipe and the first lead pipe; through set up the good seal part of leakproofness between first pipe and the collection liquid section of thick bamboo of connecing, on the prerequisite of taking into account quick installation, taking off, showing and promoting operation security and efficiency.
Description
Technical Field
The utility model relates to a sampling equipment field especially relates to a continuous online quantitative sampling device of high temperature high pressure reation kettle.
Background
Hydrothermal is a novel and hot technological approach, which utilizes the changes of density, ionic product, viscosity and dielectric constant of water to promote the decomposition and conversion of organic substances. In the hydrothermal reaction process, water has double functions, namely serving as a reaction medium and a reactant and even serving as an acid-base catalyst. At present, the hydrothermal technology is widely applied to the fields of sludge dehydration, biomass upgrading, high COD wastewater treatment, functional material synthesis, dechlorination and lightening of PVC and PVC pyrolysis oil, waste plastic gasification, oil production and the like. Compared with pyrolysis, the hydrothermal technology adopts lower temperature, and the waste quality can be obviously improved. The main place for hydrothermal generation is a reaction kettle, which is a high-temperature and high-pressure chemical device. The reaction kettle is divided into a subcritical reaction kettle and a supercritical reaction kettle, the highest temperature and the pressure of the subcritical reaction kettle are respectively 300 ℃ and 20MPa, and the highest temperature and the pressure of the supercritical reaction kettle are respectively 450 ℃ and 35 MPa. When the hydrothermal technology is used for scientific research and development or industrial production, samples in the reaction kettle are required to be sampled in order to detect the product performance and optimize process parameters. However, due to the high temperature and pressure of the sample inside the reaction kettle, the sampling operation is very dangerous. The existing method for detecting the samples in the reaction kettle is to cool the reaction kettle to room temperature after the hydrothermal reaction reaches the target temperature and is kept warm for a certain time, then open a gas collecting valve to collect gas and reduce the pressure in the reaction kettle to atmospheric pressure, then open the reaction kettle again, take out the samples for detection, and is extremely inconvenient to operate. Therefore, it is necessary to invent a continuous online quantitative sampling device for a high-temperature high-pressure reaction kettle, which can realize stable sampling under the condition of normal operation of the reaction kettle.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects existing in the prior art, the utility model provides a high-temperature high-pressure reaction kettle continuous online quantitative sampling device which can realize stable sampling under the condition of normal operation of a reaction kettle.
The technical scheme is as follows: in order to realize the aim, the utility model discloses a continuous online quantitative sampling device of a high-temperature high-pressure reaction kettle, which comprises a sampling chamber and a low-temperature cavity; the low-temperature cavity is in contact with the sampling chamber in a fitting manner, and the sampling chamber is cooled; a first gas pipe and a second gas pipe are communicated with the sampling chamber; one end of the first gas pipe, which is far away from the sampling chamber, is communicated with the exhaust end of the reaction kettle; the first gas transmission pipe is provided with a first stop valve; a second stop valve is arranged on the second gas transmission pipe; the bottom of the sampling chamber is also communicated with a first connecting and leading pipe; a liquid collecting barrel is communicated with one end of the first lead connecting pipe, which is far away from the sampling chamber; and a third stop valve is arranged on the first guide pipe.
Further, the low-temperature cavity is sleeved outside the sampling chamber; an isolation cavity wall is arranged between the low-temperature cavity and the sampling chamber; the surface of the wall of the isolation cavity is provided with fins in a surrounding way.
Furthermore, a plurality of circles of fins are distributed in parallel at intervals.
Furthermore, a first infusion tube and a second infusion tube are communicated and arranged on the low-temperature cavity; the first infusion tube and the second infusion tube are oppositely arranged on two sides of the top of the low-temperature cavity; one end of the first infusion tube connected with the low-temperature cavity extends inwards to the bottom of the low-temperature cavity; one end of the first infusion tube, which is far away from the low-temperature cavity, is communicated and butted with the outlet end of the cold water tank; and one end of the second infusion tube, which is far away from the low-temperature cavity, is communicated and butted with the inlet end of the cold water tank.
Furthermore, the fins are arranged on one side of the isolation cavity wall corresponding to the low-temperature cavity; the fins are arranged along the height direction of the low-temperature cavity.
Further, a sealing component is arranged between the first lead pipe and the liquid collecting barrel; the sealing component comprises a second lead pipe and a limiting cylinder; one end of the second lead connecting pipe, which is far away from the limiting cylinder, is communicated and butted with the first lead connecting pipe; two ends of the limiting cylinder are communicated with the second lead connecting pipe; the opening end of the liquid collecting barrel is correspondingly embedded in the limiting barrel; an internal thread is arranged at one end, close to the second lead connecting pipe, of the inner wall of the limiting cylinder; an external thread is arranged on the outer wall of one end of the liquid collecting cylinder embedded into the limiting cylinder, and the external thread is correspondingly matched with the internal thread; a sealing ring is arranged at one end of the inner wall of the limiting cylinder, which is far away from the second lead connecting pipe; the sealing ring is tightly pressed and attached to the outer wall of the liquid collecting cylinder.
Has the advantages that: the utility model relates to a continuous online quantitative sampling device of a high-temperature high-pressure reaction kettle, which comprises a sampling chamber and a low-temperature cavity; the low-temperature cavity is in contact with the sampling chamber in a fitting manner, and the sampling chamber is cooled; a first gas pipe and a second gas pipe are communicated with the sampling chamber; one end of the first gas pipe, which is far away from the sampling chamber, is communicated with the exhaust end of the reaction kettle; the first gas transmission pipe is provided with a first stop valve; a second stop valve is arranged on the second gas transmission pipe; the bottom of the sampling chamber is also communicated with a first connecting and leading pipe; a liquid collecting barrel is communicated with one end of the first lead connecting pipe, which is far away from the sampling chamber; a third stop valve is arranged on the first lead connecting pipe; after entering a sampling chamber, gas to be collected in the reaction kettle is condensed, and a gas phase sample and a liquid phase sample are respectively collected by using a second gas conveying pipe and a first lead pipe; through set up the good seal part of leakproofness between first pipe and the collection liquid section of thick bamboo of connecing, on the prerequisite of taking into account quick installation, taking off, showing and promoting operation security and efficiency.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a sampling device;
FIG. 2 is a schematic diagram of the internal structure of the sampling device;
FIG. 3 is a detailed view of the structure of the sampling chamber and the low temperature chamber;
FIG. 4 is a schematic view showing the assembly of the first lead pipe and the liquid collecting tube.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
A continuous online quantitative sampling device of a high-temperature high-pressure reaction kettle is shown in figure 1 and comprises a sampling chamber 5 and a low-temperature cavity 4; the low-temperature cavity 4 is in contact with the sampling chamber 5 in an attaching manner, and heat exchange is realized between a low-temperature medium stored in the low-temperature cavity 4 and the sampling chamber 5, so that the sampling chamber 5 is cooled; a first air conveying pipe 51 and a second air conveying pipe 52 are communicated with the sampling chamber 5; one end of the first gas pipe 51, which is far away from the sampling chamber 5, is communicated with the exhaust end of the reaction kettle, and the gas to be collected in the reaction kettle enters the sampling device through the first gas pipe 51; the first gas transmission pipe 51 is provided with a first stop valve 501, and the speed of the gas to be collected entering the sampling chamber 5 can be adjusted by controlling the first stop valve 501; under the cooling action of the low-temperature cavity 4, the steam, the condensable gas and the non-condensable gas in the gas to be collected entering the sampling chamber 5 can be subjected to gas-liquid separation; the second air delivery pipe 52 is provided with a second stop valve 502; an air bag is arranged at one end of the second gas transmission pipe 52 far away from the sampling chamber 5 and is used for collecting a gas-phase sample generated after gas-liquid separation; the bottom of the sampling chamber 5 is also communicated with a first connecting and leading pipe 6; one end of the first lead pipe 6, which is far away from the sampling chamber 5, is communicated with a liquid collecting cylinder 10 for containing a liquid phase sample generated after gas-liquid separation; the wall of the liquid collecting barrel 10 is made of transparent materials, and is marked with a plurality of scale marks, so that quantitative collection is realized; the first lead-in pipe 6 is provided with a third stop valve 503, and the collection amount is accurately controlled by controlling the opening degree of the third stop valve 503; in addition, sampling chamber 5 top still communicates and is provided with pipe fitting 11, and pipe fitting 11 keeps away from one of sampling chamber 5 and serves and be provided with manometer 1 for show the inside atmospheric pressure size of sampling chamber 5 among the acquisition process, and the cooperation is adjusted air intake rate in real time with first stop valve 501, avoids the potential safety hazard that the pressure is too big to cause.
As shown in fig. 3, the low temperature cavity 4 is sleeved outside the sampling chamber 5; an isolation cavity wall 41 is arranged between the low-temperature cavity 5 and the sampling chamber 5, and the isolation cavity wall 41 is made of a material with good heat conductivity, such as stainless steel, aluminum alloy and the like; ribs 42 are arranged on the surface of the isolation cavity wall 41 in a surrounding mode; because the temperature difference exists on the two sides of the isolation cavity wall 41, the isolation cavity wall is easy to deform under the action of stress; common methods for overcoming stress deformation include increasing the thickness and adding a stable structure such as a reinforcing rib; the ribs 42 can play a role of reinforcing ribs, so that the structural stability of the cavity wall is obviously enhanced, and the problems of weight increase and poor heat conduction caused by increasing the thickness of the cavity wall can be solved.
Meanwhile, a plurality of circles of the fins 42 are distributed in parallel at intervals; by utilizing the multi-channel reinforcing rib type structure, the overall stability of the isolation cavity wall 41 is further improved, and the stress distribution on the surface of the isolation cavity wall is more uniform.
As shown in fig. 2, a first infusion tube 43 and a second infusion tube 44 are arranged on the low temperature chamber 4 in a communicating manner; the first infusion tube 43 and the second infusion tube 44 are oppositely arranged at two sides of the top of the low-temperature cavity 4; one end of the first infusion tube 43 connected with the low-temperature cavity 4 extends inwards to the bottom of the low-temperature cavity 4, so that the impact of the entering cooling medium on the bottom of the low-temperature cavity 4 due to the height difference is avoided, and the structural stability of the sampling device is obviously improved; one end of the first infusion tube 43, which is far away from the low-temperature cavity 4, is communicated and butted with the outlet end of the cold water tank; one end of the second infusion tube 44, which is far away from the low-temperature cavity 4, is communicated and butted with the inlet end of the cold water tank; through first transfer line 43 and second transfer line 44, realized the medium circulation between low temperature chamber 4 and the cold water storage cistern to guarantee that low temperature chamber 4 can cool down sampling chamber 5 steadily at the in-process that lasts the sample, ensure to wait to gather gaseous gas-liquid separation and go on steadily.
The rib 42 is arranged on one side of the isolation cavity wall 41 corresponding to the low-temperature cavity 4; a plurality of fins 42 are arranged along the height direction of the low-temperature cavity 4; when the cooling medium flows in the low-temperature cavity 4, the fins 42 can generate a certain flow-blocking effect, and meanwhile, the surface area of the fins is utilized to increase the heat exchange area between the low-temperature cavity 4 and the sampling chamber, so that the cooling effect is enhanced, and the sampling speed is increased.
As shown in fig. 4, a sealing component 9 is arranged between the first lead pipe 6 and the liquid collecting cylinder 10; the sealing component 9 comprises a second guide pipe 91 and a limiting cylinder 92; one end of the second lead connecting pipe 91, which is far away from the limiting cylinder 92, is communicated and butted with the first lead connecting pipe 6; the second lead pipe 91 can adopt a hose in addition to a conventional hard pipe, so that the flexible change of the position of the liquid collecting cylinder 10 is realized, and the adaptability of the sampling device to the application site environment is improved; the two ends of the limiting cylinder 92 are communicated with each other and are communicated with the second lead connecting pipe 91; the open end of the liquid collecting barrel 10 is correspondingly embedded in the limiting barrel 92; an internal thread is arranged at one end, close to the second lead-in pipe 91, of the inner wall of the limiting cylinder 92; an external thread is arranged on the outer wall of one end, embedded into the limiting cylinder 92, of the liquid collecting cylinder 10, and the external thread is correspondingly matched with the internal thread, so that the liquid collecting cylinder 10 is quickly installed; a sealing ring 20 is arranged at one end of the inner wall of the limiting cylinder 92, which is far away from the second lead-in pipe 91; the sealing ring 20 and the outer wall of the liquid collecting barrel 10 are pressed and attached to each other, so that the part matched with the threads is sealed, and the problem of poor air tightness of threaded connection is solved.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (6)
1. The utility model provides a continuous online quantitative sampling device of high temperature high pressure batch autoclave which characterized in that: comprises a sampling chamber (5) and a low temperature cavity (4); the low-temperature cavity (4) is in contact with the sampling chamber (5) in a bonding manner, and the sampling chamber (5) is cooled; a first air conveying pipe (51) and a second air conveying pipe (52) are communicated with the sampling chamber (5); one end of the first gas pipe (51) far away from the sampling chamber (5) is communicated with the exhaust end of the reaction kettle; the first air conveying pipe (51) is provided with a first stop valve (501); a second stop valve (502) is arranged on the second air conveying pipe (52); the bottom of the sampling chamber (5) is also communicated with a first connecting and leading pipe (6); a liquid collecting barrel (10) is communicated with one end of the first lead connecting pipe (6) far away from the sampling chamber (5); and a third stop valve (503) is arranged on the first lead connecting pipe (6).
2. The continuous online quantitative sampling device of the high-temperature high-pressure reaction kettle according to claim 1, characterized in that: the low-temperature cavity (4) is sleeved outside the sampling chamber (5); an isolation cavity wall (41) is arranged between the low-temperature cavity (4) and the sampling chamber (5); the surface of the isolation cavity wall (41) is provided with ribs (42) in a surrounding mode.
3. The continuous online quantitative sampling device of the high-temperature high-pressure reaction kettle according to claim 2, characterized in that: a plurality of circles of the fins (42) are distributed in parallel at intervals.
4. The continuous online quantitative sampling device of the high-temperature high-pressure reaction kettle according to claim 3, characterized in that: a first infusion tube (43) and a second infusion tube (44) are communicated and arranged on the low-temperature cavity (4); the first infusion tube (43) and the second infusion tube (44) are oppositely arranged at two sides of the top of the low-temperature cavity (4); one end of the first infusion tube (43) connected with the low-temperature cavity (4) extends inwards to the bottom of the low-temperature cavity (4); one end of the first infusion tube (43) far away from the low-temperature cavity (4) is communicated and butted with the outlet end of the cold water tank; one end of the second infusion tube (44) far away from the low-temperature cavity (4) is communicated and butted with the inlet end of the cold water tank.
5. The continuous online quantitative sampling device of the high-temperature high-pressure reaction kettle according to claim 4, characterized in that: the fins (42) are arranged on one side of the isolation cavity wall (41) corresponding to the low-temperature cavity (4); the fins (42) are arranged along the height direction of the low-temperature cavity (4).
6. A high-temperature high-pressure reaction kettle continuous on-line quantitative sampling device as claimed in any one of claims 1 to 5, wherein: a sealing component (9) is arranged between the first lead pipe (6) and the liquid collecting barrel (10); the sealing component (9) comprises a second guide pipe (91) and a limiting cylinder (92); one end of the second lead connecting pipe (91) far away from the limiting cylinder (92) is communicated and butted with the first lead connecting pipe (6); two ends of the limiting cylinder (92) are communicated with the second lead connecting pipe (91); the opening end of the liquid collecting cylinder (10) is correspondingly embedded in the limiting cylinder (92); an internal thread is arranged at one end, close to the second lead connecting pipe (91), of the inner wall of the limiting cylinder (92); an external thread is arranged on the outer wall of one end, embedded into the limiting cylinder (92), of the liquid collecting cylinder (10), and the external thread is correspondingly matched with the internal thread; a sealing ring (20) is arranged at one end of the inner wall of the limiting cylinder (92) far away from the second lead connecting pipe (91); the sealing ring (20) is tightly pressed and attached to the outer wall of the liquid collecting barrel (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921910131.8U CN211205914U (en) | 2019-11-07 | 2019-11-07 | Continuous online quantitative sampling device of high-temperature high-pressure reaction kettle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921910131.8U CN211205914U (en) | 2019-11-07 | 2019-11-07 | Continuous online quantitative sampling device of high-temperature high-pressure reaction kettle |
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| CN211205914U true CN211205914U (en) | 2020-08-07 |
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| CN201921910131.8U Expired - Fee Related CN211205914U (en) | 2019-11-07 | 2019-11-07 | Continuous online quantitative sampling device of high-temperature high-pressure reaction kettle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309477A (en) * | 2021-06-23 | 2021-08-27 | 贵州盘江煤层气开发利用有限责任公司 | Multifunctional drilling machine suitable for coal bed gas exploration and development under multiple coal bed conditions |
-
2019
- 2019-11-07 CN CN201921910131.8U patent/CN211205914U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309477A (en) * | 2021-06-23 | 2021-08-27 | 贵州盘江煤层气开发利用有限责任公司 | Multifunctional drilling machine suitable for coal bed gas exploration and development under multiple coal bed conditions |
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