CN216816176U - Sampling device - Google Patents
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- CN216816176U CN216816176U CN202122853668.9U CN202122853668U CN216816176U CN 216816176 U CN216816176 U CN 216816176U CN 202122853668 U CN202122853668 U CN 202122853668U CN 216816176 U CN216816176 U CN 216816176U
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Abstract
The utility model relates to a sampling device, which comprises an oil-gas cooler, an oil-water collection separation tank and a solvent tank for containing cleaning solvent; the inlet of the oil-gas cooler is communicated with the crude gas outlet of the coal gasification device, and the oil-gas cooler is used for cooling the crude gas discharged from the crude gas outlet; the inlet of the oil-water collection separation tank is communicated with the outlet of the oil-gas cooler; the solvent tank is provided with a solvent outlet which is communicated with the oil-water collecting and separating tank so that the cleaning solvent enters the oil-water collecting and separating tank to soak and clean the oil-water collecting and separating tank; the oil-water collecting and separating tank is provided with a first discharge port for discharging the mixed liquid after cleaning, and based on the first discharge port, the sampling device provided by the disclosure does not need to disassemble the blocked oil-water collecting and separating tank, can inject the cleaning solvent into the oil-water collecting and separating tank through the solvent tank, does not need to inject the cleaning solvent manually during cleaning, avoids the damage of the cleaning solvent with stronger volatile components to operators, and has good safety.
Description
Technical Field
The disclosure relates to the technical field of coal hydro-gasification, in particular to a sampling device.
Background
The coal hydro-gasification technology is an important way for clean and efficient utilization of coal.
In order to check the yield of gas and oil products in the production process, a sampler is generally used to perform sampling test on the raw gas generated by coal hydro-gasification so as to evaluate the hydro-gasification performance. However, in the sampling process, the high boiling point oil in the raw gas may stick to the wall and block the pipeline, which affects the calculation of the gasification performance and the normal operation of the sampler, so the sampler needs to be cleaned periodically.
However, when the sampler is cleaned in the prior art, the plugging part of the sampler needs to be disassembled, and the cleaning solvent is poured into the plugging part to clean the sampler, however, most of the solvent has strong volatile, so that a protective article needs to be worn during operation, and the disassembly and assembly are complicated each time.
SUMMERY OF THE UTILITY MODEL
To solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides a sampling device.
The utility model provides a sampling device, which comprises an oil-gas cooler, an oil-water collecting and separating tank and a solvent tank for containing a cleaning solvent;
the inlet of the oil gas cooler is communicated with a crude gas outlet of the coal gasification device, and the oil gas cooler is used for cooling crude gas discharged from the crude gas outlet; the inlet of the oil-water collection separation tank is communicated with the outlet of the oil-gas cooler;
the solvent tank is provided with a solvent outlet which is communicated with the oil-water collecting and separating tank so that the cleaning solvent enters the oil-water collecting and separating tank to soak and clean the oil-water collecting and separating tank; the oil-water collecting and separating tank is provided with a first discharge port for discharging the cleaned mixed liquid.
Optionally, the outlet of the oil-gas cooler is communicated with the inlet of the oil-water collection and separation tank through a first pipeline;
the solvent outlet is communicated with the first pipeline, so that the cleaning solvent enters the oil-water collection and separation tank through the first pipeline to clean the first pipeline.
Optionally, the solvent outlet is communicated with the oil-gas cooler through a second pipeline, so that the cleaning solvent enters the oil-water collecting and separating tank through the oil-gas cooler to clean the oil-gas cooler and the oil-water collecting and separating tank.
Optionally, a gas outlet at the top of the oil-water collecting and separating tank is communicated with a third pipeline;
the solvent outlet is communicated with the third pipeline, so that the cleaning solvent enters the oil-water collection and separation tank through the third pipeline to clean the third pipeline.
Optionally, the sampling device further comprises a mass flow meter;
the mass flow meter is arranged on the third pipeline and communicated with the oil-water collecting and separating tank, and is used for detecting the mass flow of the fluid in the third pipeline.
Optionally, the first discharge port and the solvent tank are communicated through a fourth pipeline, so that the mixed liquid flows back into the solvent tank through the fourth pipeline.
Optionally, the sampling device further comprises a filter;
the filter is disposed adjacent to the solvent outlet, and the filter is configured to filter the cleaning solvent discharged through the solvent outlet.
Optionally, the solvent tank is further provided with a gas filling pipe, the gas filling pipe is provided with a gas inlet and a gas outlet, the gas outlet is communicated with the solvent tank, and the gas filling pipe is used for adding inert gas into the solvent tank so as to pneumatically convey the cleaning solvent in the solvent tank.
Optionally, the sampling device further comprises an activated carbon adsorption tank;
the top of the solvent tank is provided with a gas discharge port, the activated carbon adsorption tank is communicated with the gas discharge port, and the activated carbon adsorption tank is used for at least adsorbing volatile components in the crude gas and part of the mixed liquid carried out by the inert gas.
Optionally, a second discharge port is arranged at the bottom of the solvent tank, and the second discharge port is used for discharging sediment in the solvent tank.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
the utility model provides a sampling device collects the knockout drum and is used for the solvent jar of splendid attire washing solvent through setting up oil gas cooler, profit, and wherein, the entry of oil gas cooler and coal gasification equipment's crude gas export intercommunication is used for cooling the exhaust crude gas of crude gas export, and the entry of profit collection knockout drum and oil gas cooler's export intercommunication. The solvent tank is provided with a solvent outlet which is communicated with the oil-water collecting and separating tank so that the cleaning solvent enters the oil-water collecting and separating tank to soak and clean the oil-water collecting and separating tank, and the oil-water collecting and separating tank is provided with a first discharge port for discharging cleaned mixed liquid. When the cleaning solvent is used specifically, the cleaning solvent flows out of a solvent outlet on the solvent tank and enters the oil-water collecting and separating tank, so that the cleaning solvent is soaked in the oil-water collecting and separating tank, namely, the cleaning solvent cleans the oil-water collecting and separating tank, and meanwhile, a blockage in the oil-water collecting and separating tank is gradually separated out and mixed in the cleaning solvent to form a mixed solution. Treat to wash the completion back, mixed liquid discharges from first discharge port to realized the washing to the profit collection knockout drum, need not to dismantle the profit collection knockout drum that blocks up, can use the cleaning solvent to wash it, convenient to use, simultaneously, need not during the washing and manually pour into the cleaning solvent into, avoided the stronger cleaning solvent of volatile to cause the injury to the operative employee, the security is good.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic flow chart of a sampling device according to an embodiment of the disclosure.
Wherein, 1, an oil gas cooler; 2. an oil-water collection and separation tank; 3. a solvent tank; 4. an activated carbon adsorption tank; 5. a mass flow meter; 6. a filter; 7. a raw gas inlet valve; 8. an inlet valve of the oil-water collection separation tank; 9. a tail gas first emptying valve; 10. a tail gas second emptying valve; 11. a flow meter secondary line valve; 12. an oil product discharge valve; 13. a solvent outlet valve; 14. the solvent enters a third pipeline valve; 15. the solvent enters the oil cooler valve; 16. a mixed liquid reflux valve; 17. a first inert gas charging valve; 18. a solvent tank tail gas emptying valve; 19. a second inert gas pressurizing valve; 20. cleaning a solvent inlet tank valve; 21. an oil-water sampling bottle; 22. a gas sampling valve; 23. a waste solvent pilot valve; 24. a first pipeline; 25. a second pipeline; 26. a third pipeline; 27. a fourth pipeline; 28. a cooling water inlet pipe; 29. a cooling water outlet pipe; 30. an air adding pipe; 31. cleaning a solvent filling pipe; 32. and (5) exhausting tail gas through a pipeline.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
Referring to fig. 1, the present embodiment provides a sampling device, which specifically includes an oil-gas cooler 1, an oil-water collection and separation tank 2, and a solvent tank 3 for containing a cleaning solvent, wherein an inlet of the oil-gas cooler 1 is used for communicating with a crude gas outlet of a coal gasification device, and the oil-gas cooler 1 is used for cooling crude gas discharged from the crude gas outlet; the inlet of the oil-water collection and separation tank 2 is communicated with the outlet of the oil-gas cooler 1. The solvent tank 3 is provided with a solvent outlet which is communicated with the oil-water collecting and separating tank 2 so that the cleaning solvent enters the oil-water collecting and separating tank 2 to soak and clean the oil-water collecting and separating tank 2; the oil-water collection and separation tank 2 has a first discharge port through which the cleaned mixed liquid is discharged.
The sampling device provided by the embodiment can be particularly applied to a coal gasification device, is particularly suitable for a coal hydrogenation gasification device, is used for sampling and testing crude coal gas generated by coal hydrogenation gasification so as to check the yield of gas and oil products, evaluate the hydrogenation gasification performance, and can also be periodically cleaned automatically through a solvent tank.
It is easily understood by those skilled in the art, during the sample, in the crude gas got into sampling device through oil gas cooler 1, it can advance pipe 28 and cooling water exit tube 29 to let in the cooling water that is used for cooling off the crude gas to oil gas cooler 1 to have in the oil gas cooler 1, through the export entering to oil water collection knockout drum 2 of oil gas cooler 1 after cooling down in oil gas cooler 1, oil water condensate gets into the bottom of oil water collection knockout drum 2, gaseous top that gets into oil water collection knockout drum 2, wherein, the oil water export of oil water condensate accessible oil water collection knockout drum 2 bottom is discharged, gaseous gas outlet through the oil water collection knockout drum 2 top discharges. It can be understood that, in the sampling process of the sampling device, the oil-water collecting and separating tank 2 is the most easily blocked place, and the phenomenon that oil-water condensate cannot be discharged often occurs.
During the specific use, the profit exit accessible pipeline intercommunication profit sample bottle 21 of profit collection and separation jar 2 bottoms is provided with oil discharge valve 12 between profit sample bottle 21 and profit export, conveniently discharges the oil water condensate of deposit in profit collection and separation jar 2 bottoms.
Wherein, the oil water export and first drain outlet can be two different exports of seting up respectively on the oil water collection knockout drum 2, of course, first drain outlet also can share an opening with the oil water export, that is to say, the oil water export is first drain outlet promptly. During sampling, the oil-water outlet can discharge oil-water condensate, and during cleaning, the oil-water outlet can discharge cleaned mixed liquid.
Similarly, the oil-water collection and separation tank 2 may be specially provided with a cleaning solvent inlet for the cleaning solvent to enter, and of course, the solvent outlet may also be communicated with the gas outlet at the top of the oil-water collection and separation tank 2, that is, the gas outlet is the cleaning solvent inlet. During sampling, gas can be discharged from the gas outlet, and during cleaning, a cleaning solvent can enter the oil-water collecting and separating tank 2 through the gas outlet so as to soak and clean the oil-water collecting and separating tank 2.
In concrete implementation, referring to fig. 1, an inlet of the oil-gas cooler 1 is communicated with a crude gas outlet of the coal gasification device through a pipeline, a crude gas inlet valve 7 is arranged at an inlet of the pipeline close to the oil-gas cooler 1, and the on-off of the pipeline and the flow of crude gas in the pipeline can be controlled through the crude gas inlet valve 7.
It can be understood that the solvent tank 3 includes a solvent outlet for discharging the cleaning solvent, and a filling port for the cleaning solvent, and the filling port can be provided with a cleaning solvent filling pipe 31, further, the cleaning solvent filling pipe 31 is provided with a cleaning solvent filling tank valve 20 near the filling port, and opening the cleaning solvent filling tank valve 20 can fill enough cleaning solvent into the solvent tank 3, so as to ensure that the solvent tank 3 has enough cleaning solvent.
Through above-mentioned technical scheme, the sampling device that this embodiment provided, through setting up oil gas cooler 1, profit collection knockout drum 2 and be used for splendid attire cleaning solvent's solvent jar 3, wherein, the entry of oil gas cooler 1 and coal gasification equipment's crude gas export intercommunication is used for cooling the exhaust crude gas of crude gas export, and the entry and the export intercommunication of oil gas cooler 1 of profit collection knockout drum 2. The solvent tank 3 is provided with a solvent outlet which is communicated with the oil-water collecting and separating tank 2 so that the cleaning solvent enters the oil-water collecting and separating tank 2 to soak and clean the oil-water collecting and separating tank 2, and the oil-water collecting and separating tank 2 is provided with a first discharge port for discharging the cleaned mixed liquid. When the cleaning solvent is used specifically, the cleaning solvent flows out from the solvent outlet on the solvent tank 3 and enters the oil-water collecting and separating tank 2, so that the cleaning solvent is soaked in the oil-water collecting and separating tank 2, namely, the cleaning solvent cleans the oil-water collecting and separating tank 2, and meanwhile, the blockage in the oil-water collecting and separating tank 2 is gradually separated out and mixed in the cleaning solvent to form a mixed solution. Treat to wash the completion back, mixed liquid discharges from first discharge port to realized collecting the washing of knockout drum 2 to the profit that need not to dismantle the jam and collect the knockout drum, can use the cleaning solvent to wash it, convenient to use, simultaneously, need not during the washing manual injection cleaning solvent, avoided the stronger cleaning solvent of volatile to cause the injury to the operative employee, the security is good.
In this embodiment, the outlet of the oil-gas cooler 1 is communicated with the inlet of the oil-water collecting and separating tank 2 through a first pipeline 24, and the solvent outlet is communicated with the first pipeline 24, so that the cleaning solvent enters the oil-water collecting and separating tank 2 through the first pipeline 24 to clean the first pipeline 24.
Wherein, the sampler is in the process of taking a sample to the crude gas, except that the oil-water collecting and separating tank 2 is often blocked, the first pipeline 24 communicated between the outlet of the oil-gas cooler 1 and the inlet of the oil-water collecting and separating tank 2 is also blocked to a certain extent. Through with solvent export and first pipeline 24 intercommunication for cleaning solvent can get into to the profit through first pipeline 24 and collect in the knockout drum 2, and at this moment, cleaning solvent can soak the washing to first pipeline 24 and profit collection knockout drum 2, thereby also can realize the washing to first pipeline 24 when wasing profit collection knockout drum 2, and the cleaning performance is good.
Further, the first pipeline 24 may be provided with an oil-water collection and separation tank inlet valve 8, and the oil-water collection and separation tank inlet valve 8 is used for controlling the on-off of the first pipeline 24 or the flow of the cleaning solvent or the crude gas flowing through the first pipeline 24.
In this embodiment, the solvent outlet is communicated with the oil gas cooler 1 through the second pipeline 25, so that the cleaning solvent enters the oil-water collecting and separating tank 2 through the oil gas cooler 1, and the oil gas cooler 1 and the oil-water collecting and separating tank 2 are cleaned.
As an alternative embodiment, a cleaning solvent inlet for the cleaning solvent to enter may be provided on the oil-gas cooler 1, and the second pipeline 25 is communicated with the cleaning solvent inlet.
As another alternative, since the oil-gas cooler 1 has an inlet communicated with the crude gas outlet of the coal gasification device, at this time, the second pipeline 25 may be directly communicated with the inlet on the oil-gas cooler 1, at this time, the crude gas inlet on the oil-gas cooler 1 is the cleaning solvent inlet, during sampling, the crude gas inlet on the oil-gas cooler 1 is used for flowing the crude gas, and during cleaning, the crude gas inlet on the oil-gas cooler 1 is used for flowing the cleaning solvent.
Referring to fig. 1, a solvent-fed oil cooler valve 15 is arranged on the second pipeline 25 close to the cleaning solvent inlet of the oil-gas cooler 1, and whether the cleaning solvent enters the oil-gas cooler 1 or not is realized by controlling the on-off of the solvent-fed oil cooler valve 15. Wherein, the cleaning solvent gets into oil water collection knockout drum 2 through second pipeline 25, oil gas cooler 1, first pipeline 24 in proper order, washs oil gas cooler 1, oil water collection knockout drum 2 and first pipeline 24 simultaneously, has further improved the cleaning performance of whole sampler device.
In this embodiment, a third pipeline 26 is connected to the gas outlet at the top of the oil-water collecting and separating tank 2, and the solvent outlet is connected to the third pipeline 26, so that the cleaning solvent enters the oil-water collecting and separating tank 2 through the third pipeline 26 to clean the third pipeline 26.
During the sample, the gaseous gas outlet and the third pipeline 26 of the interior oil water collection knockout drum 2 top of profit collection knockout drum 2 of passing through are discharged, can carry the oil occasionally in the gas to cause the third pipeline 26 to block up, consequently, with solvent export and third pipeline 26 intercommunication. During the washing, the washing solvent gets into to the profit through third pipeline 26 and collects knockout drum 2 in, soaks the washing to third pipeline 26 and profit collection knockout drum 2 to the realization is to the clear stifled of third pipeline 26, thereby has improved the cleaning range of the sampling device that this embodiment provided, and the cleaning performance is good.
Referring to fig. 1, the third pipeline 26 is provided with a solvent inlet third pipeline valve 14, and whether the cleaning solvent enters the third pipeline 26 and the oil-water collecting and separating tank 2 can be controlled by opening and closing the solvent inlet third pipeline valve 14, and it can be understood that the flow rate of the cleaning solvent in the third pipeline 26 can be adjusted by controlling the opening degree of the solvent inlet third pipeline valve 14.
In the embodiment, the sampling device further comprises a mass flow meter 5, the mass flow meter 5 is arranged on the third pipeline 26 and is communicated with the oil-water collecting and separating tank 2, and the mass flow meter 5 is used for detecting the mass flow of the fluid in the third pipeline 26.
The mass flow meter 5 fluctuates when detecting the mass flow of the fluid in the third pipeline 26, so that the mass flow meter 5 is blocked, the use performance of the mass flow meter 5 is affected, and the mass flow meter 5 can be cleaned while the third pipeline 26 is cleaned by being arranged on the third pipeline 26, so that the performance of the mass flow meter 5 is improved, and the accuracy of the hydro-gasification performance evaluation is improved. Along gaseous circulation direction, be provided with first air release valve 9 of tail gas and tail gas second way air release valve 10 respectively in mass flow meter 5's both sides, simultaneously, still be provided with flowmeter secondary line valve 11 on the third pipeline 26, and flowmeter secondary line valve 11 is parallelly connected with mass flow meter 5, and it can be understood that be provided with gas sampling valve 22 on the third pipeline 26 to the gas of isolating in the coarse coal gas of convenient selective examination sample.
Referring to fig. 1, the oil-water collecting and separating tank 2 further includes a first inert gas pressurizing valve 17, and the first inert gas pressurizing valve 17 is used for pressurizing the oil-water collecting and separating tank 2. During specific implementation, firstly, system pressurization needs to be carried out on the sampling device, namely, the first emptying valve 9 and the oil product discharge valve 12 of tail gas are closed, the inlet valve 8 of the oil-water collection separation tank and the first inert gas pressurization valve 17 are opened, and the oil-water collection separation tank 2 and the oil-gas cooler 1 are pressurized to be consistent with the hydro-gasification system.
During the concrete implementation, after the sampling device finishes system pressurization, the raw gas needs to be fed, cooled and metered, the raw gas inlet valve 7 is opened at the moment, the raw gas enters the oil-gas cooler 1 to be cooled, oil-water condensate enters the bottom of the oil-water collection and separation tank 2, the first tail gas vent valve 9 is opened to enable gas to be discharged from the third pipeline 26 at the top of the oil-water collection and separation tank 2, meanwhile, the opening degree of the second tail gas vent valve 10 is adjusted, the mass flow meter 5 is enabled to display 5-10 kg/h, and then sampling is carried out for 1 hour continuously. After the sampling time is over, the first tail gas emptying valve 9, the crude gas inlet valve 7 and the oil-water collection and separation tank inlet valve 8 are closed, the first tail gas emptying valve 9 is opened again, the system is slowly decompressed to 0.05MPa, then the oil product discharge valve 12 is opened, the oil-water mixture is discharged into the oil-water sampling bottle 21, and the primary sampling process can be completed.
Further, communicate through fourth pipeline 27 between first discharge port and solvent tank 3 to make mixed liquid flow back to in the solvent tank 3 through fourth pipeline 27, so the design, mixed liquid can flow back to in the solvent tank 3, in order to recycle when supplying to wash, practice thrift the cost.
Wherein, can set up mixed liquid return valve 16 on fourth pipeline 27 and make mixed liquid backward flow to in the solvent jar 3 to carry out backward flow utilization to the mixed liquid of first discharge port discharge, also reached the purpose of practicing thrift the cost when wasing the sampler.
As an alternative embodiment, the solvent tank 3 includes a return port, and the fourth line 27 may be directly connected to the return port.
As another alternative, the fourth pipe 27 is directly connected to a filling port of the cleaning solvent in the solvent tank 3, or is connected to a filling pipe 31 of the cleaning solvent at the filling port, so as to recycle the mixed liquid.
Further, because can carry impurity in the mixed liquid that flows back to in the solvent jar 3, in order to avoid impurity in the mixed liquid to get into the cleaning process in next step, consequently, sampling device still is provided with filter 6, and filter 6 is close to the solvent export and sets up, and filter 6 is used for filtering through solvent export exhaust cleaning solvent.
During concrete implementation, in order to guarantee the cleaning effect of the cleaning solvent on the sampler, the filter 6 is arranged at the position close to the solvent outlet valve 13 of the solvent outlet so as to filter the solvent, so that the pipeline is prevented from being blocked by impurities in the cleaning solvent, and the cleaning efficiency of the cleaning solvent is further influenced.
Referring to fig. 1, the solvent tank 3 is further provided with a gas inlet pipe 30, the gas inlet pipe 30 is provided with a gas inlet and a gas outlet, the gas outlet is communicated with the solvent tank 3, and the gas inlet pipe 30 is used for adding inert gas into the solvent tank 3 to pneumatically convey the cleaning solvent in the solvent tank 3.
In some embodiments, the cleaning solvent in the solvent tank 3 can be conveyed under the action of gravity, and of course, the filling and the discharge of the cleaning solvent in the solvent tank 3 can be realized in a pneumatic conveying mode by arranging the gas adding pipe 30 on the solvent tank 3, so that the sampler can be cleaned, the stable operation of the sampler can be ensured, meanwhile, the direct contact of an operator with the cleaning solvent can be avoided, and the occupational health of the operator can be ensured.
It is understood that a second inert gas pressurizing valve 19 may be disposed on the gas feeding pipe 30 to control whether the inert gas is fed into the solvent tank 3, wherein the gas fed into the solvent tank 3 from the gas feeding pipe 30 may be any other suitable inert gas such as nitrogen, carbon dioxide, etc., as long as it can be pneumatically transferred without reaction occurring in the sampling device, and thus, it is not limited herein.
Wherein, sampling device still includes activated carbon adsorption jar 4, and the top of solvent jar 3 is provided with gas discharge port, activated carbon adsorption jar 4 and gas discharge port intercommunication, activated carbon adsorption jar 4 are arranged in adsorbing the part mixed liquid that volatile and inert gas in the crude gas carried out at least.
Further, the activated carbon adsorption tank 4 can be regenerated periodically, and the quality of the discharged air is guaranteed to reach the discharge standard. It may be specifically that the activated carbon adsorption tank 4 adsorbed with impurities is cleaned by using high-temperature steam to periodically regenerate the activated carbon adsorption tank 4, so as to be conveniently recycled, and in addition, the activated carbon adsorption tank 4 can be replaced by new one to realize regeneration.
In some embodiments, the bottom of the solvent tank 3 is provided with a second discharge port for discharging the sediment in the solvent tank 3.
Wherein, set up useless solvent pilot valve 23 on the second discharge port, lead through the useless solvent of regularly opening and drench valve 23 to observe the color and luster of the useless solvent that discharges and precipitate etc. in time discharge the precipitate in solvent tank 3, avoid having impurity to block up the solvent outlet of solvent tank 3 in the solvent tank 3, thereby ensure the quality of solvent in the solvent tank 3, thereby realize the cyclic utilization of solvent.
After the sampling process of the crude gas is completed, the whole sampler needs to be cleaned, so that the blockage of a pipeline of the sampler is prevented from influencing the subsequent crude gas sampling and the evaluation of the hydrogenation gasification performance. In specific implementation, the solvent cleaning process mainly comprises valve confirmation before cleaning, solvent filling and waste solvent backflow into the solvent tank 3.
When valve confirmation before cleaning and solvent filling are carried out, closing of a crude gas inlet valve 7, an oil product discharge valve 12, a cleaning solvent inlet solvent tank valve 20 and a solvent tank tail gas vent valve 18 is firstly determined, an oil-water collection separation tank inlet valve 8, a tail gas first vent valve 9 and a tail gas second vent valve 10 are opened, at the moment, a second inert gas charging valve 19 is opened, a solvent tank 3 is charged to 0.05-0.1MPa, then a solvent outlet valve 13 is opened, cleaning solvent is gradually accumulated in an oil-water collection separation tank 2, soaking of the oil-water collection separation tank 2 is realized, when a mass flowmeter 5 displays a reading number, the solvent is indicated to be filled in the oil-water collection separation tank 2, the solvent outlet valve 13 and the second inert gas charging valve 19 are closed, and the oil-water collection separation tank 2 is soaked for 20-40 minutes.
According to some embodiments, when the oil-water collecting and separating tank 2 is filled with the cleaning solvent, if the cleaning solvent is continuously injected into the oil-water collecting and separating tank 2, because the inlet valve 8 of the oil-water collecting and separating tank, the first vent valve 9 of the tail gas and the second vent valve 10 of the tail gas are in an open state, the cleaning solvent can also enter the first pipeline 24 and/or the oil-gas cooler 1 and/or the third pipeline 26 respectively, so that cleaning and blockage in the first pipeline 24, the oil-gas cooler 1 and the third pipeline 26 can be realized, the cost is saved, and the cleaning effect is high.
During specific implementation, at least one of the oil-water collection separation tank inlet valve 8, the solvent inlet oil cooler valve 15 and the solvent inlet third pipeline valve 14 can be opened, so that the cleaning solvent can enter the corresponding blocking area to be soaked and cleaned, and blocking cleaning operation is achieved.
After the whole sampler is soaked for 20-40 minutes, in order to save cost, the mixed solution flows back to the solvent tank 3 through the fourth pipeline 27, the first tail gas emptying valve 9 is closed, the tail gas emptying valve 18 of the solvent tank is opened, the solvent tank 3 is discharged to the normal pressure, then the first inert gas pressurizing valve 17 is opened, the oil-water collecting and separating tank 2 is pressurized to 0.05-0.1MPa, the mixed solution return valve 16 is opened, and the mixed solution returns to the solvent tank 3 through pneumatic transmission. After mixed liquid is completely cleared up, close mixed liquid return valve 16, first inert gas pressure charging valve 17, open first atmospheric valve 9 of tail gas, discharge oil water collection and separation jar 2 to the ordinary pressure, and open oil discharge valve 12, collect the mixed liquid in the separation jar 2 with the oil water and totally arrange, so that take a sample next time, the washing to whole sampler has been realized, the pipeline that blocks up need not to dismantle, can use cleaning solvent to wash it, high durability and convenient use, and simultaneously, need not manual injection cleaning solvent during the washing, avoided the stronger cleaning solvent of volatile to cause the injury to the operative employee, and the security is good.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A sampling device is characterized by comprising an oil-gas cooler (1), an oil-water collection and separation tank (2) and a solvent tank (3) for containing a cleaning solvent;
the inlet of the oil gas cooler (1) is communicated with a crude gas outlet of a coal gasification device, and the oil gas cooler (1) is used for cooling crude gas discharged from the crude gas outlet; the inlet of the oil-water collection and separation tank (2) is communicated with the outlet of the oil-gas cooler (1);
the solvent tank (3) is provided with a solvent outlet which is communicated with the oil-water collecting and separating tank (2) so that the cleaning solvent enters the oil-water collecting and separating tank (2) to soak and clean the oil-water collecting and separating tank (2); the oil-water collection separation tank (2) is provided with a first discharge port for discharging cleaned mixed liquid.
2. The sampling device according to claim 1, characterized in that the outlet of the oil and gas cooler (1) and the inlet of the oil and water collection and separation tank (2) are communicated through a first pipeline (24);
the solvent outlet is communicated with the first pipeline (24) so that the cleaning solvent enters the oil-water collection separation tank (2) through the first pipeline (24) to clean the first pipeline (24).
3. The sampling device according to claim 2, characterized in that the solvent outlet communicates with the oil and gas cooler (1) through a second line (25) for passing the cleaning solvent through the oil and gas cooler (1) into the miscella (2) for cleaning the oil and gas cooler (1) and the miscella (2).
4. The sampling device according to claim 1, characterized in that a third pipeline (26) is communicated with a gas outlet at the top of the oil-water collection and separation tank (2);
the solvent outlet is communicated with the third pipeline (26) so that the cleaning solvent enters the oil-water collection separation tank (2) through the third pipeline (26) to clean the third pipeline (26).
5. A sampling device according to claim 4, characterized in that it further comprises a mass flow meter (5);
the mass flow meter (5) is arranged on the third pipeline (26) and is communicated with the oil-water collecting and separating tank (2), and the mass flow meter (5) is used for detecting the mass flow of the fluid in the third pipeline (26).
6. The sampling device according to claim 1, characterized in that the first discharge port communicates with the solvent tank (3) through a fourth line (27) to return the mixed liquid to the solvent tank (3) through the fourth line (27).
7. A sampling device according to claim 6, characterized in that it further comprises a filter (6);
the filter (6) is disposed adjacent to the solvent outlet, and the filter (6) is configured to filter the cleaning solvent discharged through the solvent outlet.
8. The sampling device according to any one of claims 1 to 7, characterized in that a gas feeding pipe (30) is further arranged on the solvent tank (3), the gas feeding pipe (30) is provided with a gas inlet and a gas outlet, the gas outlet is communicated with the solvent tank (3), and the gas feeding pipe (30) is used for feeding inert gas into the solvent tank (3) so as to pneumatically convey the cleaning solvent in the solvent tank (3).
9. The sampling device according to claim 8, characterized in that it further comprises an activated carbon adsorption tank (4);
the top of the solvent tank (3) is provided with a gas discharge port, the activated carbon adsorption tank (4) is communicated with the gas discharge port, and the activated carbon adsorption tank (4) is used for at least adsorbing volatile components in the crude gas and the part carried out by the inert gas to form the mixed liquid.
10. The sampling device according to any one of claims 1 to 7, characterized in that the bottom of the solvent tank (3) is provided with a second discharge for discharging sediment inside the solvent tank (3).
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