Condensation sampling device and condensation sampling method

Abstract

The invention discloses a condensation sampling device and a condensation sampling method, and relates to the technical field of condensation sampling. The condensation sampling device comprises a synthesis chamber, a condensation assembly, a liquid recovery tank and a gas-liquid separator. The liquid recovery tank is connected with the condensation assembly through a first branch pipeline, the first branch pipeline is used for guiding the condensed liquid composition into the liquid recovery tank, and the liquid recovery tank is used for storing the liquid composition; the gas-liquid separator is arranged at the downstream of the condensation assembly and is connected with the liquid recovery tank through a second branch pipeline; the gas-liquid separator is used for separating the composition passing through the condensation assembly into a liquid composition, and the second branch pipeline is used for guiding the separated liquid composition into the liquid recovery tank. By applying the condensation sampling device disclosed by the invention, the recovery of a composition and the reutilization of reactants can be improved, so that the accuracy of sampling detection data is improved.

Description

Technical Field

[0001] The present application relates to but is not limited to the field of condensation sampling technology, and in particular to a condensation sampling device and a condensation sampling method. Background Art

[0002] The condenser is an important part of the refrigeration system. Its main function is to convert gas or steam into liquid. Condensers are widely used in various industrial fields. In the petrochemical industry, condensers are used to condense hydrocarbons and their chemical vapors.

[0003] In the related art, the condensation sampling device has the problem of incomplete condensation, which leads to a large deviation in the data collected on the synthetic product after the reaction, affecting the sampling and analysis results. Summary of the invention

[0004] The condensation sampling device provided in the present application can improve the recovery of synthetic materials and the reuse of reactants, thereby improving the accuracy of sampling detection data.

[0005] On the one hand, the present application provides a condensation sampling device, which includes a first circulation loop, and the first circulation loop includes a synthesis chamber, a condensation component, a liquid recovery tank and a gas-liquid separator. The synthesis chamber is used to synthesize preset raw materials into a composition; the condensation component is arranged downstream of the synthesis chamber, and the condensation component is used to condense part of the gaseous composition into a liquid composition; the liquid recovery tank is connected to the condensation component through a first branch pipeline, and the first branch pipeline is used to introduce the condensed liquid composition into the liquid recovery tank, and the liquid recovery tank is used to store the liquid composition; the gas-liquid separator is arranged downstream of the condensation component, and the gas-liquid separator is connected to the liquid recovery tank through a second branch pipeline; the gas-liquid separator is used to separate the composition passing through the condensation component into a liquid composition, and the second branch pipeline is used to introduce the separated liquid composition into the liquid recovery tank.

[0006] The condensation sampling device of the embodiment of the present application, since the condensation component is arranged at the downstream of the synthesis chamber and is connected to the synthesis chamber through a pipeline, the gaseous composition generated in the synthesis chamber can smoothly enter the condensation component, and the condensation component condenses the gaseous composition into a liquid composition, and introduces it into the liquid recovery tank for storage through the first branch pipeline. Since the gas-liquid separator is arranged at the downstream of the condensation component and is connected to the liquid recovery tank through the second branch pipeline, the composition that is not completely condensed in the mixed gas can be further separated in the gas-liquid separator, and introduced into the liquid recovery tank for storage through the second branch pipeline. Through the synergistic effect of the condensation component and the gas-liquid separator, efficient condensation of the gaseous composition and sufficient recovery of the liquid composition are achieved, the loss of the composition is reduced, and thus the accuracy of the sampling detection data is improved. Therefore, the condensation sampling device provided by the present application can improve the recovery of the composition and the reuse of the reactants, thereby improving the accuracy of the sampling detection data.

[0007] In a possible implementation of the present application, the condensation sampling device also includes a pressure-stabilizing pipeline, which is connected to the first interface of the condensation component. The condensation component also includes an inlet and an outlet, the inlet is connected to the synthesis chamber, and the outlet is connected to the liquid recovery tank. The first interface is arranged between the inlet and the outlet, and the first interface and the outlet are spaced apart.

[0008] In a possible implementation of the present application, the condensation component also includes a second interface connected to the gas-liquid separator, and the second interface is arranged between the first interface and the outlet.

[0009] In a possible implementation of the present application, the first circulation loop also includes a circulation pump, which is located between the synthesis chamber and the gas-liquid separator. The circulation pump at least drives the synthesis material to flow along the synthesis chamber, the condensation component and the gas-liquid separator in sequence.

[0010] In a possible implementation of the present application, the first circulation loop further includes a buffer tank, which is located between the synthesis chamber and the circulation pump. The buffer tank is provided with a feed port, and the feed port can allow preset raw materials to enter the buffer tank.

[0011] In a possible implementation of the present application, a first valve is provided between the buffer tank and the synthesis chamber, and the first valve can connect or isolate the buffer tank from the synthesis chamber; a second valve is provided between the buffer tank and the circulation pump, and the second valve can connect or isolate the buffer tank from the circulation pump.

[0012] In a possible implementation of the present application, the condensation sampling device also includes a second circulation loop, the second circulation loop includes a heat exchanger, the heat exchanger is used to provide a cooling medium flowing in the second circulation loop, and the second circulation loop exchanges heat with the first circulation loop through the condensation component.

[0013] In a possible implementation of the present application, the condensation component includes a first channel and a second channel, the first channel is connected to the first circulation loop, the second channel is connected to the second circulation loop, and the first channel is sleeved on the outer peripheral side of the second channel.

[0014] In a possible implementation of the present application, the liquid recovery tank includes a liquid level meter, which is used to indicate the storage volume of the liquid composition in the liquid recovery tank; and / or, the liquid recovery tank includes a sampling valve, which can connect or isolate the liquid recovery tank from the outside.

[0015] On the other hand, the present application provides a condensation sampling method, which is applied to any of the above-mentioned condensation sampling devices, wherein the first circulation loop also includes a buffer tank, a circulation pump, and a first valve and a second valve arranged at both ends of the buffer tank; the method includes: closing the first valve and the second valve to evacuate the buffer tank; injecting a preset volume of hydrogen into the buffer tank; opening the first valve and the second valve, and injecting helium into the buffer tank; determining that the pressure in the buffer tank is positive pressure, and turning on the circulation pump; and injecting a preset volume of oxygen into the buffer tank.

[0016] Since the condensation sampling method provided in the present application includes any of the above-mentioned condensation sampling devices, it has the same technical effect, that is, it can improve the recovery of the synthetic product and the reuse of the reactants, thereby improving the accuracy of the sampling detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a condensation sampling device provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of a liquid recovery tank and a connection structure of a condensation sampling device provided in an embodiment of the present application;

[0019] Figure 3 A structural diagram of a condensation component of a condensation sampling device provided in an embodiment of the present application;

[0020] Figure 4 One of the step diagrams of the condensation sampling method provided in an embodiment of the present application;

[0021] Figure 5 This is a second step diagram of the condensation sampling method provided in an embodiment of the present application.

[0022] Reference numerals:

[0023] 1-first circulation loop; 11-synthesis chamber; 12-condensation component; 121-first interface; 122-inlet; 123-outlet; 124-second interface; 125-first channel; 126-second channel; 13-liquid recovery tank; 131-sampling valve; 14-gas-liquid separator; 15-circulation pump; 16-buffer tank; 17-first valve; 18-second valve; L1-first branch pipeline; L2-second branch pipeline; 2-pressure stabilizing pipeline; 3-second circulation loop; 31-heat exchanger; 32-cooling pipeline; 4-main pipeline. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.

[0025] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.

[0026] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.

[0027] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0028] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0029] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0030] Condensate sampling devices are mainly used in scenarios where gas or steam condensate needs to be collected and analyzed. For example: in laboratory research, gas condensate is collected for component analysis; in industrial chemical industry, the condensate components in the reaction gas are monitored to optimize the process; in the energy field, impurities in boiler steam are monitored to reduce equipment corrosion, etc.

[0031] The existing condensation sampling device has the problem of incomplete condensation, which leads to a large deviation in the data collected on the synthetic product after the reaction, affecting the sampling and analysis results.

[0032] Reference Figure 1 and Figure 2 The embodiment of the present application provides a condensation sampling device, which includes a first circulation loop 1, and the first circulation loop 1 includes a synthesis chamber 11, a condensation component 12, a liquid recovery tank 13 and a gas-liquid separator 14. The synthesis chamber 11 is used to synthesize a preset raw material into a composition; the condensation component 12 is arranged downstream of the synthesis chamber 11, and the condensation component 12 is used to condense part of the gaseous composition into a liquid composition; the liquid recovery tank 13 is connected to the condensation component 12 through a first branch pipeline L1, and the first branch pipeline L1 is used to introduce the condensed liquid composition into the liquid recovery tank 13, and the liquid recovery tank 13 is used to store the liquid composition; the gas-liquid separator 14 is arranged downstream of the condensation component 12, and the gas-liquid separator 14 is connected to the liquid recovery tank 13 through a second branch pipeline L2; the gas-liquid separator 14 is used to separate the composition passing through the condensation component 12 into a liquid composition, and the second branch pipeline L2 is used to introduce the separated liquid composition into the liquid recovery tank 13.

[0033] In the embodiment of the present application, in the first circulation loop 1, the preset raw material is usually a gas, such as hydrogen, oxygen, etc.; in order to stabilize the air pressure inside the condensation sampling device, an inert gas, such as helium, nitrogen, etc., is also filled into the condensation sampling device.

[0034] In the embodiment of the present application, the condensation component 12 is arranged downstream of the synthesis chamber 11 , and the condensation component 12 and the synthesis chamber 11 can be connected through the main pipeline 4 so that the synthesis generated in the synthesis chamber 11 can enter the condensation component 12 .

[0035] In the embodiment of the present application, in the first circulation loop 1, the preset raw materials react in the synthesis chamber 11 to generate a synthetic product, which is usually a gaseous synthetic product. At this time, the condensation sampling device includes a mixed gas composed of the gaseous synthetic product, the unreacted preset raw materials, and the inert gas.

[0036] Reference Figure 1 and Figure 2 In the embodiment of the present application, the condensation component 12 is arranged downstream of the synthesis chamber 11. Therefore, the mixed gas can enter the condensation component 12 through the main pipeline 4. The condensation component 12 condenses the gaseous composition into a liquid composition. The condensed liquid composition flows into the liquid recovery tank 13 through the first branch pipeline L1.

[0037] In the embodiment of the present application, since the gas-liquid separator 14 is located downstream of the condensation component 12, the mixed gas will enter the gas-liquid separator 14 from the condensation component 12, and the gas-liquid separator 14 will separate the gas and the uncondensed synthetic substances in the mixed gas.

[0038] In the embodiment of the present application, the gas-liquid separator 14 is connected to the liquid recovery tank 13 via the second branch pipe L2, and the liquid composition separated by the gas-liquid separator 14 can enter the liquid recovery tank 13 through the second branch pipe L2 for storage.

[0039] In an embodiment of the present application, the gas separated from the gas-liquid separator 14 may include an inert gas used to balance the pressure and avoid explosion in the condensation sampling device, and preset raw materials that have not completed the reaction. These inert gases and preset raw materials can continue to circulate in the condensation sampling device, and the preset raw materials that have not completed the reaction can continue to react in the synthesis chamber 11, and the inert gas can continue to be used to balance the gas pressure and avoid explosion.

[0040] In the condensation sampling device of the embodiment of the present application, since the condensation component 12 is arranged downstream of the synthesis chamber 11 and is connected to the synthesis chamber 11 through the first pipeline, the gaseous composition generated in the synthesis chamber 11 can smoothly enter the condensation component 12, and the condensation component 12 condenses the gaseous composition into a liquid composition, and introduces it into the liquid recovery tank 13 for storage through the first branch pipeline L1. Since the gas-liquid separator 14 is arranged downstream of the condensation component 12 and is connected to the liquid recovery tank 13 through the second branch pipeline L2, the composition that is not completely condensed in the mixed gas can be further separated in the gas-liquid separator 14 and introduced into the liquid recovery tank 13 for storage through the second branch pipeline L2. Through the synergistic effect of the condensation component 12 and the gas-liquid separator 14, efficient condensation of the gaseous composition and sufficient recovery of the liquid composition are achieved, the loss of the composition is reduced, and thus the accuracy of the sampling detection data is improved. Therefore, the condensation sampling device provided by the present application can improve the recovery of the composition and the reuse of the reactants, thereby improving the accuracy of the sampling detection data.

[0041] Reference Figure 1 , Figure 2 and Figure 3 In some possible embodiments of the present application, the condensation sampling device also includes a pressure-stabilizing pipeline 2, which is connected to the first interface 121 of the condensation component 12. The condensation component 12 also includes an inlet 122 and an outlet 123. The inlet 122 is connected to the synthesis chamber 11, and the outlet 123 is connected to the liquid recovery tank 13. The first interface 121 is arranged between the inlet 122 and the outlet 123, and the first interface 121 and the outlet 123 are arranged at intervals.

[0042] In the embodiment of the present application, the inlet 122 of the condensation component 12 is connected to the synthesis chamber 11, and the outlet 123 of the condensation component 12 is connected to the liquid recovery tank 13. The gaseous composition generated in the synthesis chamber 11 passes through the main pipeline 4 and enters the condensation component 12 from the inlet 122. The gaseous composition condenses in the condensation component 12 to form a liquid composition. The liquid composition flows out from the outlet 123 under the action of gravity or pressure and enters the liquid recovery tank 13 through the first branch pipeline L1.

[0043] In the embodiment of the present application, if the air pressure between the condensation component 12 and the liquid recovery tank 13 is unbalanced, the liquid composition may not be able to flow smoothly into the liquid recovery tank 13, and may even cause liquid reflux or blockage. The pressure-stabilizing pipeline 2 is used to connect the condensation component 12 and the liquid recovery tank 13, balance the air pressure between the condensation component 12 and the liquid recovery tank 13, and balance the air pressure so that the liquid composition can flow smoothly from the condensation component 12 into the liquid recovery tank 13.

[0044] In the embodiment of the present application, the main function of the pressure-stabilizing pipeline 2 is to regulate the air pressure, rather than to transmit liquid. By spacing the first interface 121 and the outlet 123, a distance can be maintained between the first interface 121 and the outlet 123, and the size of the distance can be adjusted according to the parameters of the condensation sampling device. Maintaining a distance between the first interface 121 and the outlet 123 can reduce the liquid composition from entering the pressure-stabilizing pipeline 2 through the first interface 121, thereby balancing the air pressure between the condensation component 12 and the liquid recovery tank 13.

[0045] In the condensation sampling device of the embodiment of the present application, since a pressure-stabilizing pipeline 2 is connected between the condensation component 12 and the liquid recovery tank 13, and the first interface 121 connecting the condensation component 12 and the pressure-stabilizing pipeline 2 is located between the inlet 122 and the outlet 123, and the first interface 121 and the outlet 123 are spaced apart, the pressure-stabilizing pipeline 2 can balance the air pressure between the condensation component 12 and the liquid recovery tank 13, and by balancing the air pressure, the liquid composition can flow smoothly from the condensation component 12 into the liquid recovery tank 13.

[0046] Reference Figure 1 , Figure 2 and Figure 3 In some possible embodiments of the present application, the condensation component 12 further includes a second interface 124 connected to the gas-liquid separator 14 , and the second interface 124 is disposed between the first interface 121 and the outlet 123 .

[0047] In the embodiment of the present application, the condensation component 12 and the gas-liquid separator 14 are connected through a main pipeline 4 , and the main pipeline 4 is connected to the second interface 124 of the condensation component 12 .

[0048] Reference Figure 1 and Figure 2In the embodiment of the present application, the second interface 124 is disposed between the first interface 121 and the outlet 123, which means that the second interface 124 is closer to the outlet 123 of the condensation component 12 than the first interface 121. Since the gaseous composition flows in the condensation component 12 and gradually condenses after entering the condensation component 12 from the inlet 122, when the second interface 124 is closer to the outlet 123 of the condensation component 12, the movement path of the gaseous composition in the condensation component 12 is longer, and the gaseous composition has a longer time to fully contact with the condensation component 12, thereby improving the condensation efficiency.

[0049] The condensation sampling device of the embodiment of the present application extends the flow path of the gaseous composition in the condensation component 12 so that the gaseous composition has sufficient time to fully contact the condensation component 12 before reaching the second interface 124, which helps to improve the condensation efficiency and convert more gaseous compositions into liquid compositions. This not only improves the recovery rate of the composition, but also reduces the uncondensed composition, thereby reducing the separation burden of the gas-liquid separator 14.

[0050] Reference Figure 1 In some possible embodiments of the present application, the first circulation loop 1 also includes a circulation pump 15, which is located between the synthesis chamber 11 and the gas-liquid separator 14. The circulation pump 15 at least drives the synthesis material to flow along the synthesis chamber 11, the condensation component 12 and the gas-liquid separator 14 in sequence.

[0051] In an embodiment of the present application, the circulating pump 15 is located between the synthesis chamber 11 and the gas-liquid separator 14, and can be specifically arranged on the main pipeline 4 between the condensation component 12 and the gas-liquid separator 14, that is, the circulating pump 15 is connected to the synthesis chamber 11 through the main pipeline 4, and the circulating pump 15 and the gas-liquid separator 14 are connected through the main pipeline 4.

[0052] In the embodiment of the present application, the circulation pump 15 at least drives the synthesis material to flow along the synthesis chamber 11, the condensation assembly 12 and the gas-liquid separator 14 in sequence, which can be understood as the circulation pump 15 is used to maintain a stable flow rate and pressure in the first circulation loop 1. The circulation pump 15 can be a centrifugal pump, a gear pump, a peristaltic pump, a vacuum pump, etc.

[0053] In the embodiment of the present application, the circulation pump 15 can also be used to drive the inert gas, the preset raw material, and the preset raw material that has not completed the reaction to flow in sequence along the synthesis chamber 11, the condensation component 12, and the gas-liquid separator 14. For example, the circulation pump 15 can drive the gas separated in the gas-liquid separator 14 (including the unreacted preset raw material and the inert gas) to re-enter the synthesis chamber 11, so as to realize the recycling of the preset raw material and the continuous balancing effect of the inert gas.

[0054] In the condensation sampling device of the embodiment of the present application, the circulation pump 15 drives the unreacted preset raw materials separated in the gas-liquid separator 14 back to the synthesis chamber 11, thereby improving the utilization rate of the preset raw materials, promoting the continuous progress of the reaction, and improving the overall reaction efficiency. The circulation pump 15 reduces the disturbance of the first circulation loop 1 caused by air pressure fluctuations or poor flow by maintaining a stable flow and pressure in the first circulation loop 1, thereby improving the stability of the operation of the condensation sampling device.

[0055] Reference Figure 1 In some possible embodiments of the present application, the first circulation loop 1 also includes a buffer tank 16, which is located between the synthesis chamber 11 and the circulation pump 15. The buffer tank 16 is provided with a feed port, and the feed port can allow preset raw materials to enter the buffer tank 16.

[0056] In the embodiment of the present application, the buffer tank 16 is connected to the synthesis chamber 11 and the circulation pump 15 respectively through the main pipeline 4. A feed port is provided on the buffer tank 16. The number of the feed ports can be one or more and can be adjusted according to demand.

[0057] In the embodiment of the present application, the preset raw material and the inert gas can enter the buffer tank 16 from the feed port. After the preset raw material enters the buffer tank 16 from the feed port, it enters the synthesis chamber 11 through the main pipeline 4. The buffer tank 16 can be used to store the preset raw material, and can also be used to provide the preset raw material to the synthesis chamber 11.

[0058] In the embodiment of the present application, a pressure sensor may also be provided in the buffer tank 16 to monitor the pressure in the buffer tank 16 .

[0059] In the condensation sampling device of the embodiment of the present application, the buffer tank 16 can be used as a temporary storage device for the preset raw material. After the preset raw material enters the buffer tank 16 from the feed port, the buffer tank 16 can store a certain amount of the preset raw material and continuously supply it according to the needs of the synthesis chamber 11, thereby reducing the reaction fluctuation or interruption caused by the unstable supply of the preset raw material. The buffer tank 16 can make the supply of the preset raw material more stable, reducing the impact of the fluctuation of the flow rate of the preset raw material on the synthesis reaction and the potential safety hazards.

[0060] Reference Figure 1 In some possible embodiments of the present application, a first valve 17 is arranged between the buffer tank 16 and the synthesis chamber 11, and the first valve 17 can connect or isolate the buffer tank 16 from the synthesis chamber 11; a second valve 18 is arranged between the buffer tank 16 and the circulation pump 15, and the second valve 18 can connect or isolate the buffer tank 16 from the circulation pump 15.

[0061] In the embodiment of the present application, the first valve 17 is used to control the connection state between the buffer tank 16 and the synthesis chamber 11, and can connect or isolate the buffer tank 16 and the synthesis chamber 11. When the first valve 17 is opened, the preset raw materials and inert gas in the buffer tank 16 can enter the synthesis chamber 11 to participate in the synthesis reaction. When the first valve 17 is closed, the passage between the buffer tank 16 and the synthesis chamber 11 is cut off, and the preset raw materials and inert gas cannot enter the synthesis chamber 11.

[0062] In the embodiment of the present application, the second valve 18 is used to control the connection state between the buffer tank 16 and the circulation pump 15, and can connect or isolate the buffer tank 16 and the circulation pump 15. When the second valve 18 is opened, the preset raw materials and inert gas in the buffer tank 16 can enter the circulation loop through the circulation pump 15 and participate in the subsequent condensation and gas-liquid separation process. When the second valve 18 is closed, the passage between the buffer tank 16 and the circulation pump 15 is cut off, and the preset raw materials and inert gas cannot enter the circulation loop.

[0063] In the embodiment of the present application, the first valve 17 and the second valve 18 can be opened or closed separately or simultaneously. The first valve 17 can be arranged on the main pipeline 4 connecting the buffer tank 16 and the synthesis chamber 11; the second valve 18 can be arranged on the main pipeline 4 connecting the buffer tank 16 and the circulation pump 15.

[0064] The condensation sampling device of the embodiment of the present application can accurately adjust the flow of preset raw materials and inert gases and optimize the reaction conditions and system operation status through the opening and closing control of the first valve 17 and the second valve 18; it can also quickly cut off the first circulation loop 1 by closing the first valve 17 and the second valve 18 when an abnormality occurs in the condensation sampling device, thereby reducing the possibility of accidents.

[0065] Reference Figure 1 In some possible embodiments of the present application, the condensation sampling device also includes a second circulation loop 3, the second circulation loop 3 includes a heat exchanger 31, the heat exchanger 31 is used to provide a cooling medium flowing in the second circulation loop 3, and the second circulation loop 3 exchanges heat with the first circulation loop 1 through the condensation component 12.

[0066] In an embodiment of the present application, the second circulation loop 3 may also include a cooling pipeline 32 and a circulation pump 15, etc. The cooling pipeline 32 is used to connect the heat exchanger 31 and the circulation pump 15, etc. The second circulation loop 3 provides cooling capacity for the condensation component 12 through the cooling medium flowing in the cooling pipeline 32, thereby realizing the condensation of the gaseous composition in the first circulation loop 1.

[0067] In the embodiment of the present application, the heat exchanger 31 is used to remove the heat of the cooling medium through heat exchange, so as to cool the cooling medium.

[0068] In the embodiment of the present application, the cooling medium may be water, ethylene glycol solution, or refrigerant (such as Freon, etc.). Water is suitable for medium and low temperature cooling scenarios, is low cost and easy to obtain; ethylene glycol solution is suitable for low temperature cooling scenarios, and has antifreeze properties; refrigerant (such as Freon, etc.) is suitable for high efficiency cooling scenarios and is commonly used in refrigeration systems.

[0069] For example, the heat exchanger 31 can be a circulating cooling water machine, and the cooling medium is water. The temperature of the water is lowered by the circulating cooling water machine, and the water with a lower temperature exchanges heat with the composition in the condensation component 12, so that the composition is liquefied into a liquid composition. The temperature of the water increases after the heat exchange, and it flows into the circulating cooling machine in the second circulation loop 3, and circulates in the second circulation loop 3 after being cooled again.

[0070] In the condensation sampling device of the embodiment of the present application, the second circulation loop 3 performs efficient heat exchange with the gaseous composition of the first circulation loop 1 through the cooling medium, thereby improving the condensation efficiency; the circulating flow of the cooling medium enables the condensation component 12 to continuously obtain cooling capacity, thereby reducing the decline in condensation effect caused by insufficient cooling, and the recycling of the cooling medium reduces the cooling cost and reduces waste of resources.

[0071] Reference Figure 1 and Figure 3 In some possible embodiments of the present application, the condensation component 12 includes a first channel 125 and a second channel 126 , the first channel 125 is connected to the first circulation loop 1 , the second channel 126 is connected to the second circulation loop 3 , and the first channel 125 is sleeved on the outer peripheral side of the second channel 126 .

[0072] In the embodiment of the present application, the first channel 125 is connected to the first circulation loop 1, which can be understood as the synthesised in the synthesis chamber 11 can enter the first channel 125. The second channel 126 is connected to the second circulation loop 3, which can be understood as the cooling pipeline 32 is connected to the second channel 126, and the cooling medium can flow into the second channel 126 through the cooling pipeline 32, and continue to circulate in the cooling pipeline 32 after flowing out of the second channel 126.

[0073] In the embodiment of the present application, the first channel 125 is sleeved on the outer peripheral side of the second channel 126. Such a structure can increase the contact area between the first channel 125 and the second channel 126, that is, the area for heat exchange between the composition contained in the first channel 125 and the cooling medium contained in the second channel 126 is increased, thereby improving the condensation effect.

[0074] Reference Figure 1 and Figure 2In some possible embodiments of the present application, the liquid recovery tank 13 includes a liquid level meter, which is used to indicate the storage amount of the liquid composition in the liquid recovery tank 13; and / or, the liquid recovery tank 13 includes a sampling valve 131, which can connect or isolate the liquid recovery tank 13 from the outside.

[0075] In the embodiment of the present application, the liquid level meter is used to monitor and display the storage amount of the liquid composition in the liquid recovery tank 13. When the liquid level of the liquid composition reaches a preset upper limit or lower limit, the liquid level meter can trigger an alarm to remind the operator to handle it in time.

[0076] In the embodiment of the present application, the sampling valve 131 is used to connect or isolate the liquid recovery tank 13 from the outside world so as to sample and test the liquid composition. When the sampling valve 131 is opened, the liquid composition can flow out through the sampling valve 131 for the operator to collect samples for testing. When the sampling valve 131 is closed, the liquid recovery tank 13 is completely isolated from the outside world, reducing the leakage of the liquid composition or the entry of external contaminants.

[0077] The embodiment of the present application provides a condensation sampling device, in which the preset raw material and the inert gas enter the buffer tank 16 through the feed port in the first circulation loop 1, and under the action of the circulation pump 15, the preset raw material and the inert gas enter the synthesis chamber 11 through the first valve 17 and the main pipeline 4, and the preset raw material reacts in the synthesis chamber 11 to generate a gaseous composition after the reaction. In the condensation sampling device, a mixed gas composed of a gaseous composition, an inert gas and an incompletely reacted preset raw material enters the condensation component 12, and the gaseous composition condenses to form a liquid composition, and the liquid composition flows out from the outlet 123 of the condensation component 12 by gravity or pressure, and flows into the liquid recovery tank 13 through the first branch pipeline L1. The uncondensed composition in the condensation component 12 will enter the gas-liquid separator 14 together with the inert gas and the incompletely reacted preset raw material. The gas-liquid separator 14 separates the liquid composition from the incompletely condensed composition, and the separated liquid composition flows into the liquid recovery tank 13 through the second branch pipe L2. The separated inert gas and the preset raw materials that are not completely reacted enter the buffer tank 16 under the action of the circulation pump 15, and can further enter the synthesis chamber 11 to continue synthesis. The storage amount of the liquid composition in the liquid recovery tank 13 can be observed through the liquid level meter, and the sampling valve 131 is opened to take out the sample of the liquid composition for analysis. In the second circulation loop 3, the cooling medium flows in the second circulation loop 3. When the cooling medium flows into the heat exchanger 31, the heat exchanger 31 can absorb the heat of the cooling medium and reduce the temperature of the cooling medium; when the cooling medium after cooling flows into the second channel 126, the cooling medium in the second channel 126 can absorb the heat of the composition in the first channel 125, so that the composition condenses, and the temperature of the cooling medium increases. The cooling medium with increased temperature continues to flow into the heat exchanger 31 to cool down, and the cooling medium circulates in the second circulation loop 3 in this way.

[0078] Reference Figure 4 , the embodiment of the present application provides a condensation sampling method, which is applied to any of the above-mentioned condensation sampling devices, wherein the first circulation loop 1 further includes a buffer tank 16, a circulation pump 15, and a first valve 17 and a second valve 18 disposed at both ends of the buffer tank 16;

[0079] Methods include:

[0080] S10, close the first valve 17 and the second valve 18 to evacuate the buffer tank 16;

[0081] S20, injecting a preset volume of hydrogen into the buffer tank 16;

[0082] S30, opening the first valve 17 and the second valve 18, and injecting helium into the buffer tank 16;

[0083] S40, determining that the pressure in the buffer tank 16 is positive, and turning on the circulation pump 15;

[0084] S50 , injecting a preset volume of oxygen into the buffer tank 16 .

[0085] In the embodiment of the present application, before the cooling sampling device reacts, an inert gas is used to clean the inside of the cooling sampling device to remove impurities or residual substances in the cooling sampling device.

[0086] In the embodiment of the present application, hydrogen and oxygen are preset raw materials. According to the requirements of the reaction, the ratio of hydrogen to oxygen injected into the buffer tank 16 can be 2:1. Helium is an inert gas and does not participate in the reaction. By adjusting the amount of inert gas charged, the volume change caused by gas reaction or condensation can be compensated to maintain the stability of the pressure in the condensation sampling device; at the same time, the inert gas, as a diluent, can reduce the flammability of the hydrogen-oxygen mixture and reduce the occurrence of deflagration in the synthesis chamber 11 or the pipeline.

[0087] Reference Figure 5 Before the step of closing the first valve 17 and the second valve 18 and evacuating the buffer tank 16 in step S10, the condensation sampling method further includes:

[0088] S01, start the heat exchanger 31 to reduce the temperature of the cooling medium;

[0089] In the embodiment of the present application, the temperature of the cooling medium after being reduced by the heat exchanger 31 can be controlled according to the requirements of the condensation sampling device, and the temperature of the cooling medium after cooling can be 3°C (degrees Celsius), 4°C, 5°C, etc. For example, the cooling medium can be reduced to 5°C (degrees Celsius) first.

[0090] Reference Figure 5 After the step of injecting a preset volume of oxygen into the buffer tank 16 in S50, the condensation sampling method further includes:

[0091] S60, observe the liquid level meter, and after the reaction is completed, open the sampling valve 131 to take samples;

[0092] S70, analyzing the sampled samples.

[0093] In the embodiment of the present application, the amount of the liquid composition is related to the amount of the preset raw material injected into the condensation sampling device. For example, injecting 5 liters of hydrogen can generate about 3.5 milliliters of liquid.

[0094] The condensation sampling method provided in the embodiment of the present application is to close the first valve 17 and the second valve 18, and evacuate the buffer tank 16, so as to inject a preset volume of hydrogen into the buffer tank 16. After the hydrogen is completely injected into the buffer tank 16, the first valve 17 and the second valve 18 are slowly opened, and at the same time, helium is injected into the buffer tank 16, and the air pressure in the condensation sampling device is observed by the pressure detection in the buffer tank 16. When the air pressure in the entire condensation sampling device is positive pressure, such as when the air pressure in the entire condensation sampling device is about 0.3Mpa (megapascals), the circulation pump 15 is turned on to further stabilize the air pressure in the condensation sampling device. A preset volume of oxygen is injected into the buffer tank 16, so that oxygen and hydrogen react in the synthesis chamber 11, and part of the synthesis is condensed into a liquid synthesis by the condensation component 12, and flows into the liquid recovery tank 13, and the other part of the synthesis is separated into a liquid synthesis by the gas-liquid separator 14 and flows into the liquid recovery tank 13. The unreacted hydrogen and oxygen can continue to circulate to the synthesis chamber 11 for reaction after being separated by the gas-liquid separator 14. Observe the liquid level meter, and after the reaction is completed, open the sampling valve 131, take out the liquid synthetic sample, and analyze it.

[0095] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A condensation sampling device, characterized in that: The invention comprises a first circulation loop, wherein the first circulation loop comprises: The synthesis room is used to synthesize preset raw materials into synthetic objects; A condensation component, disposed downstream of the synthesis chamber, and configured to condense part of the gaseous composition into a liquid composition; A liquid recovery tank connected to the condensation assembly via a first branch pipeline, wherein the first branch pipeline is used to introduce the condensed liquid composition into the liquid recovery tank, and the liquid recovery tank is used to store the liquid composition; A gas-liquid separator is arranged downstream of the condensation component, and the gas-liquid separator is connected to the liquid recovery tank through a second branch pipeline; the gas-liquid separator is used to separate the liquid composition from the composition passing through the condensation component, and the second branch pipeline is used to introduce the separated liquid composition into the liquid recovery tank.

2. The condensation sampling device according to claim 1, characterized in that: It also includes a pressure-stabilizing pipeline, which is connected to the first interface of the condensation component. The condensation component also includes an inlet and an outlet, the inlet is connected to the synthesis chamber, and the outlet is connected to the liquid recovery tank. The first interface is arranged between the inlet and the outlet, and the first interface and the outlet are spaced apart.

3. The condensation sampling device according to claim 2, characterized in that: The condensation component also includes a second interface connected to the gas-liquid separator, and the second interface is arranged between the first interface and the outlet.

4. The condensation sampling device according to claim 1, characterized in that: The first circulation loop further includes a circulation pump, which is located between the synthesis chamber and the gas-liquid separator. The circulation pump at least drives the synthesis material to flow along the synthesis chamber, the condensation component and the gas-liquid separator in sequence.

5. The condensation sampling device according to claim 4, characterized in that: The first circulation loop further includes a buffer tank, which is located between the synthesis chamber and the circulation pump. The buffer tank is provided with a feed inlet, and the feed inlet allows the preset raw material to enter the buffer tank.

6. The condensation sampling device according to claim 5, characterized in that: A first valve is arranged between the buffer tank and the synthesis chamber, and the first valve can connect or isolate the buffer tank from the synthesis chamber; a second valve is arranged between the buffer tank and the circulation pump, and the second valve can connect or isolate the buffer tank from the circulation pump.

7. The condensation sampling device according to any one of claims 1 to 6, characterized in that: It also includes a second circulation loop, which includes a heat exchanger. The heat exchanger is used to provide a cooling medium flowing in the second circulation loop, and the second circulation loop exchanges heat with the first circulation loop through the condensation component.

8. The condensation sampling device according to claim 7, characterized in that: The condensation component includes a first channel and a second channel, the first channel is connected to the first circulation loop, the second channel is connected to the second circulation loop, and the first channel is sleeved on the outer peripheral side of the second channel.

9. The condensation sampling device according to claim 7, characterized in that: The liquid recovery tank comprises a liquid level gauge, and the liquid level gauge is used to indicate the storage amount of the liquid composition in the liquid recovery tank; and / or, The liquid recovery tank comprises a sampling valve, and the sampling valve can connect or isolate the liquid recovery tank from the outside.

10. A condensation sampling method, characterized in that: The condensation sampling device applied to any one of claims 1 to 9, wherein the first circulation loop further comprises a buffer tank, a circulation pump, and a first valve and a second valve disposed at both ends of the buffer tank; The method comprises: Close the first valve and the second valve to evacuate the buffer tank; Injecting a preset volume of hydrogen into the buffer tank; Opening the first valve and the second valve, and injecting helium into the buffer tank; Determine that the pressure in the buffer tank is positive, and turn on the circulation pump; A preset volume of oxygen is injected into the buffer tank.

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