Steam generator and analyzer

Abstract

The present invention relates to the technical field of analytical instruments, and specifically provides a steam generator and an analyzer, which aims to solve the problem that the steam generator in the existing analytical instruments usually has fluctuations in temperature, component ratio and pressure. To this end, the steam generator of the present invention includes a shell, a hot core and a heating sleeve, the shell is provided with a receiving cavity along the axial direction, and the first end of the receiving cavity is provided with an air outlet; the hot core is sealed and connected to the side wall of the receiving cavity, the hot core includes an air inlet channel and a liquid inlet channel, the heating sleeve is sleeved on the outer wall of the shell, and the heating sleeve is arranged corresponding to the receiving cavity, so that after the hot core is installed in place, the air inlet channel and the liquid inlet channel can be connected to the mixing chamber at the same time, so that the liquid steam and the gas can have the same temperature, and the steam generator can also control the steam flow entering the mixing chamber by adjusting the liquid inlet flow of the liquid inlet channel, so that the mixed steam discharged from the air outlet can have a stable pressure, component ratio and temperature.

Description

Technical Field

[0001] The invention relates to the technical field of analytical instruments, and specifically provides a steam generator and an analyzer. Background Art

[0002] Instruments such as physical adsorption instruments, chemical adsorption instruments and thermogravimetric analyzers are important instruments for studying the physical and chemical properties of materials such as catalysts and adsorbents. In related studies, the liquid in the steam generator is vaporized and introduced into the reaction chamber as an adsorbate or reaction gas. In this process, the steam generator continuously and stably provides steam to the reaction chamber to ensure that the input of adsorbate or reaction gas is consistent in each experiment, which is crucial to the results under different samples or conditions. Any fluctuation may lead to changes in the adsorption amount, thereby affecting the accuracy of the data.

[0003] However, although the steam generators in existing material analysis instruments have temperature control systems and pressure control systems, temperature and pressure fluctuations may still occur in actual operations, which in turn affects the consistency and reliability of the experiment; there is also the problem of being unable to control the component ratio.

[0004] Accordingly, the art needs a new technical solution to solve the above problems. Summary of the invention

[0005] The present invention aims to solve the above technical problem, that is, to solve the problem that although the steam generator in the existing analytical instrument has a temperature control system and a pressure control system, the temperature and pressure fluctuations may still occur in actual operation.

[0006] In a first aspect, the present invention provides a steam generator, comprising:

[0007] A housing, which is provided with a receiving cavity along the axial direction, and a first end of the receiving cavity is provided with an air outlet;

[0008] a hot core, which is plugged into the second end of the accommodating cavity and is sealed with the side wall of the accommodating cavity, the hot core comprising an air inlet channel and a liquid inlet channel, the air inlet channel and the liquid inlet channel extending from the first end of the hot core to the second end of the hot core along the axial direction of the hot core, the hot core being configured such that when plugged into place, the first end of the hot core and the accommodating cavity form a mixing cavity, the mixing cavity is connected to a source of liquid to be evaporated through the liquid inlet channel, and the mixing cavity is connected to an air source through the air inlet channel; and

[0009] A heating sleeve is sleeved on the outer wall of the shell, and the heating sleeve is arranged corresponding to the accommodating cavity, and is used to heat the hot core and the mixing cavity.

[0010] In the preferred technical solution of the above steam generator, the liquid inlet channel comprises:

[0011] a spiral groove, which is circumferentially arranged on the outer side wall of the hot core, wherein the spiral groove is configured such that after the hot core is plugged into place, the spiral groove and the inner wall of the accommodating chamber form a spiral flow channel, and a first end of the spiral groove is connected to the mixing chamber; and

[0012] A liquid inlet is arranged at the second end of the hot core, and the liquid inlet is communicated with the spiral channel.

[0013] In the preferred technical solution of the above-mentioned steam generator, there are multiple spiral grooves, and the multiple spiral grooves are evenly distributed on the outer wall of the hot core. The liquid inlet channel also includes an annular groove, and the annular groove is arranged between the liquid inlet and the spiral groove. The end of the annular groove away from the liquid inlet is connected to the second end of the spiral groove, and the end of the annular groove away from the spiral groove is connected to the liquid inlet. The annular groove is configured to form a liquid ring with the inner wall of the accommodating cavity when the hot core is plugged into place.

[0014] In the preferred technical solution of the above-mentioned steam generator, the distance between the end of the heating sleeve close to the mixing chamber and the end of the mixing chamber away from the hot core in the direction of the shell axis is equal to a preset first distance D1, and the distance between the end of the heating sleeve away from the mixing chamber and the annular groove in the direction of the shell axis is equal to a preset second distance D2.

[0015] In a preferred technical solution of the above steam generator, the steam generator further comprises a cooling assembly, and the cooling assembly is configured to cool the liquid in the liquid loop so that the liquid in the liquid loop can always be in a liquid state under the action of the cooling assembly.

[0016] In the preferred technical solution of the above steam generator, the cooling assembly comprises:

[0017] A cooling sleeve, which is sleeved on the outer wall of the shell, the cooling sleeve comprises a cooling groove, a water inlet and a water outlet, the cooling groove circumferentially surrounds the inner wall of the cooling sleeve, the position of the cooling groove is configured to be arranged corresponding to the liquid annular channel, so that the water in the cooling groove can cool the liquid in the liquid annular channel, the water inlet is opened on the outer wall of the cooling sleeve and communicates with the cooling groove, the water outlet is opened on the outer wall of the cooling sleeve, and the water outlet is located at the end of the cooling sleeve away from the water inlet;

[0018] a water inlet pipeline, which is in communication with the water inlet, so that the water inlet is in communication with a water source through the water inlet pipeline; and

[0019] A water outlet pipeline is communicated with the water outlet, so that the water outlet is communicated with the outside of the steam generator through the water outlet pipeline.

[0020] In the preferred technical solution of the above steam generator, there are multiple liquid inlets, and the multiple liquid inlets are evenly distributed in the circumference on the end surface of the second end of the hot core away from the mixing chamber.

[0021] In the preferred technical solution of the above steam generator, the steam generator further comprises a temperature measuring component connected to the hot core, and the temperature measuring component is configured to detect the temperature of the mixed steam at the end of the mixing chamber close to the air inlet passage.

[0022] In the preferred technical solution of the above steam generator, the temperature measuring component comprises:

[0023] a three-way joint, a first end of which is sealedly connected to an end of the air inlet passage away from the mixing chamber, a second end of which is connected to the air source, and a third end of which is located in the same straight line as the first end of the three-way joint; and

[0024] A temperature sensor is inserted from the second end of the three-way joint, passes through the first end of the three-way joint, and extends to the end of the air inlet passage close to the mixing chamber, wherein the temperature sensor is sealed and connected to the second end of the three-way joint.

[0025] In a second aspect, the present invention further provides an analyzer, comprising the above-mentioned steam generator.

[0026] In the case of adopting the above technical solution, after the hot core of the steam generator of the present invention is installed in place, the air inlet channel and the liquid inlet channel can be connected to the mixing chamber at the same time, so that the gas and liquid vapor entering the steam generator can be mixed inside the mixing chamber, so that the liquid vapor and the gas can have the same temperature, so that the temperature of the mixed steam discharged from the air outlet can be guaranteed to be within a controllable range. In addition, in the specific implementation of the present invention, in the process of liquid entering the mixing chamber through the liquid inlet channel, since the heating sleeve can heat the shell and the hot core at the same time, the liquid in the liquid inlet channel can be quickly evaporated into steam. At this time, the steam flow entering the mixing chamber can be controlled by adjusting the liquid inlet flow of the liquid inlet channel. On this basis, the present invention controls the gas flow entering the mixing chamber by adjusting the air inlet flow of the air inlet channel. In this way, the steam generator of the present invention can control the air inlet flow and the liquid inlet flow and the heating power of the heating sleeve, so that the mixed steam discharged from the air outlet can have a stable flow and temperature, so as to ensure the stability of the temperature, component ratio and pressure of the mixed steam inside the mixing chamber of the steam generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0028] Figure 1 is a schematic diagram of the internal structure of the steam generator of the present invention;

[0029] Figure 2 It is a schematic structural diagram of the hot core of the steam generator of the present invention.

[0030] List of reference numerals:

[0031] 100. Steam generator; 1. Shell; 11. Accommodating chamber; 12. Air outlet; 2. Hot core; 21. Air inlet channel; 211. Buffer heating chamber; 22. Liquid inlet channel; 221. Spiral groove; 222. Annular groove; 223. Liquid inlet; 3. Cooling assembly; 31. Water inlet pipeline; 32. Cooling sleeve; 33. Water outlet pipeline; 4. Temperature measuring assembly; 41. Three-way joint; 42. Temperature sensor; 5. Mixing chamber; 6. Liquid annular channel; 7. Spiral flow channel; 8. Heating sleeve;

[0032] D1, the preset first distance;

[0033] D2, the preset second distance. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not used to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to it as needed to adapt to specific applications. For example, although the specification is described in conjunction with an analyzer, it is obvious that it can also be applied to other equipment with a steam generator, such as a magnetic suspension balance, a competitive adsorption instrument, a steam adsorption instrument, a catalyst evaluation instrument, a reaction device, a small test and a pilot chemical plant.

[0035] It should be noted that, in the description of the present invention, the terms "upper", "lower", "inner" and "outer" and other terms indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" and "third" may explicitly or implicitly include one or more features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0036] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In order to solve the problem that the steam generator in the existing analyzer may still experience temperature and pressure fluctuations in actual operation despite having a temperature control system and a pressure control system.

[0038] Figure 1 Schematic diagram of the internal structure of a steam generator 100 according to an embodiment of the present invention. Figure 2 1 is a schematic structural diagram of a heat core 2 of a steam generator 100 according to an embodiment of the present invention.

[0039] like Figure 1 See also Figure 2The present invention provides a steam generator 100, which is applied to an analyzer (not shown) and is used to provide mixed steam to a reaction chamber (not shown) of the analyzer. Specifically, the steam generator 100 includes a shell 1, a hot core 2 and a heating sleeve 8. The shell 1 is provided with a receiving chamber 11 along the axial direction, and a first end of the receiving chamber 11 (the upper end of the receiving chamber 11 in the figure) is provided with an air outlet 12. The hot core 2 is plugged into the second end of the accommodating chamber 11 (the lower end of the accommodating chamber 11 in the figure), and the hot core 2 includes an air inlet channel 21 and a liquid inlet channel 22. The air inlet channel 21 and the liquid inlet channel 22 extend from the first end of the hot core 2 to the second end of the hot core 2 along the axial direction of the hot core 2. The hot core 2 is configured so that when it is plugged into place, the outer surface of the side wall of the hot core 2 is sealed and connected to the side wall of the accommodating chamber 11, and the second end of the hot core 2 can block the second end of the accommodating chamber 11. The hot core 2 is also configured so that when it is plugged into place, the first end of the hot core 2 and the accommodating chamber 11 form a mixing chamber 5, and the mixing chamber 5 is correspondingly connected to the liquid source of the liquid to be evaporated and the source of the gas through the liquid inlet channel 22 and the air inlet channel 21. The heating sleeve 8 is sleeved on the outer wall of the shell 1, and the heating sleeve 8 is arranged corresponding to the accommodating chamber 11, and is used to heat the hot core 2 and the mixing chamber 5. Through the above-mentioned arrangement, after the hot core 2 is installed in place, the air inlet channel 21 and the liquid inlet channel 22 can be connected with the mixing chamber 5 at the same time, so that the gas and liquid vapor entering the steam generator 100 can be mixed in the mixing chamber 5, so that the liquid vapor and the gas can have the same temperature, thereby ensuring that the temperature of the mixed steam discharged from the outlet 12 is within a controllable range.

[0040] In addition, in the specific implementation of the present invention, in the process of liquid entering the mixing chamber 5 through the liquid inlet channel 22, the heating sleeve 8 can heat the shell 1 and the hot core 2, so that the liquid in the liquid inlet channel 22 can be quickly evaporated into steam. On this basis, the steam generator 100 can control the steam flow entering the mixing chamber 5 by adjusting the liquid inlet flow of the liquid inlet channel 22. On this basis, the steam generator 100 of the present invention controls the gas flow entering the mixing chamber 5 by adjusting the air inlet flow of the air inlet channel 21. In this way, the steam generator 100 can control the flow and temperature of the mixed steam discharged from the air outlet 12 by controlling the air inlet flow and the liquid inlet flow and the heating power of the heating sleeve 8, so that the mixed steam discharged from the air outlet 12 can have a stable flow and temperature, so as to ensure the stability of the pressure, component ratio and temperature of the mixed steam delivered by the steam generator 100 to the reaction chamber of the analyzer.

[0041] In addition, the inventors have also found in the process of implementing the present invention that the steam generator of the analyzer in the prior art still has the problem of small flow rate and cannot be used under high pressure conditions.

[0042] The steam generator 100 of the present invention can be connected to the source of the liquid to be evaporated and the gas source at the same time, so that the steam generator 100 of the present invention can control the gas flow entering the mixing chamber 5 by adjusting the carrier gas flow of the air inlet channel 21, and can also control the steam flow entering the mixing chamber 5 by adjusting the liquid inlet flow of the liquid inlet channel 22, and then the flow of the mixed steam can be controlled. On this basis, when the present invention is implemented, the hot core 2 and the shell 1 are both made of high-pressure resistant materials, so that the carrier gas and liquid can enter the steam generator 100 respectively under the action of the high-pressure stable pressure gas source and the high-pressure stable pressure liquid pump, so that the steam generator of the present invention can be suitable for flow and high pressure conditions.

[0043] As a possible implementation, Figure 1 See also Figure 2 The liquid inlet channel 22 includes a spiral groove 221 and a liquid inlet 223. The spiral groove 221 is circumferentially arranged on the outer wall of the hot core 2. The spiral groove 221 is configured so that after the hot core 2 is plugged into place, the spiral groove 221 and the inner wall of the accommodating chamber 11 form a spiral flow channel 7, and the first end of the spiral flow channel 7 is communicated with the mixing chamber 5. The liquid inlet 223 is arranged at the second end of the hot core 2, and the liquid inlet 223 is communicated with the spiral channel. Through the above arrangement, after the hot core 2 is plugged into place, the outer wall of the hot core 2 can be sealed and connected with the side wall of the accommodating chamber 11, so that after the hot core 2 is plugged into place, the spiral groove 221 arranged on the outer wall of the hot core 2 can form a spiral flow channel 7 with the inner wall of the accommodating chamber 11, so that the liquid entering the steam generator 100 through the liquid inlet 223 can flow along the spiral flow channel 7 under the action of pressure, so that the liquid in the spiral flow channel 7 can contact the inner wall of the shell 1, so that the liquid in the spiral flow channel 7 can evaporate quickly. Moreover, the spiral groove 221 can form a spiral flow channel 7 with the inner wall of the accommodating chamber 11, thereby increasing the contact distance between the liquid and the inner wall of the accommodating chamber 11, so that the liquid in the spiral flow channel 7 can be fully evaporated, thereby ensuring the stability of the pressure of the mixed steam delivered by the steam generator 100 to the reaction chamber of the analyzer.

[0044] As a possible implementation, Figure 1 See also Figure 2, the number of spiral grooves 221 is multiple, and the multiple spiral grooves 221 are evenly distributed on the outer wall of the hot core 2. The liquid inlet channel 22 also includes an annular groove 222, which is arranged between the liquid inlet 223 and the spiral groove 221. Specifically, the end of the annular groove 222 away from the liquid inlet 223 is connected to the second end of the spiral groove 221, and the end of the annular groove 222 away from the spiral groove 221 is connected to the liquid inlet 223. The annular groove 222 is configured so that when the hot core 2 is plugged in place, the annular groove 222 can form a liquid annular channel 6 with the inner wall of the accommodating chamber 11. Through the above-mentioned arrangement, the liquid entering between the hot core 2 and the accommodating chamber 11 through the liquid inlet 223 can first fill the spiral flow channel 7 under the action of liquid pressure, and then enter the multiple spiral flow channels 7 after filling the spiral flow channel 7, so that the liquid can contact the inner wall of the accommodating chamber 11 in the multiple spiral flow channels 7 at the same time, so that the liquid entering the spiral flow channel 7 can have a higher evaporation efficiency.

[0045] Moreover, since the liquid entering between the hot core 2 and the accommodating cavity 11 through the liquid inlet 223 can first fill the liquid annulus 6, the liquid in the liquid annulus 6 can simultaneously provide liquid to multiple spiral flow channels 7, thereby avoiding the situation where the liquid entering through the liquid inlet 223 first flows through the spiral flow channel 7 close to the liquid inlet 223 and quickly evaporates in the spiral flow channel 7, resulting in no liquid or less liquid entering the spiral flow channel 7 farther from the liquid inlet 223. The steam generator 100 of the present invention can first fill the liquid annulus 6 after the liquid enters between the hot core 2 and the accommodating chamber 11 through the liquid inlet 223, so that the liquid in the liquid annulus 6 can enter the multiple spiral flow channels 7 at the same speed under the action of pressure, so that the liquid in the multiple spiral flow channels 7 can be vaporized at the same evaporation rate, thereby making it possible to make the flow rate of steam entering the mixing chamber 5 from the first ends of the multiple spiral flow channels 7 the same, thereby reducing the risk of uneven pressure of the mixed steam in the mixing chamber 5, and also reducing the risk of fluctuation in the air pressure of the mixed steam in the mixing chamber 5 due to different flow rates of steam entering the mixing chamber 5 from the multiple spiral flow channels 7, thereby ensuring the stability of the pressure of the mixed steam delivered by the steam generator 100 to the reaction chamber of the analyzer.

[0046] As a possible implementation, Figure 1As shown, the distance between the end of the heating sleeve 8 close to the mixing chamber 5 and the end of the mixing chamber 5 away from the hot core 2 in the axial direction of the shell 1 is equal to the preset first distance D1, that is, the top of the heating sleeve 8 (the upper end of the heating sleeve 8 in the figure) is lower than the top of the mixing chamber 5 (the upper end of the mixing chamber 5 in the figure), and the distance between the top of the heating sleeve 8 and the top of the mixing chamber 5 is the preset first distance D1. Specifically, the value of the first distance is less than the length of the mixing chamber 5 along the axial direction of the shell 1, so that the top of the heating sleeve 8 is higher than the bottom of the mixing chamber 5, and the top of the heating sleeve 8 is lower than the top of the mixing chamber 5. Through the above-mentioned setting, the heating sleeve 8 heats the shell 1. During the process, the heating sleeve 8 is prevented from directly heating the shell 1 at the top of the mixing chamber 5, and the heating sleeve 8 can directly heat the shell 1 at the bottom of the mixing chamber 5, so that the temperature at the top of the mixing chamber 5 can be lower than the temperature at the bottom of the mixing chamber 5. This avoids the situation where the temperature of the mixed steam at the top of the mixing chamber 5 is higher than the temperature of the mixed steam at the bottom of the mixing chamber 5 due to the higher temperature at the higher point of the mixing chamber 5, thereby making the temperature distribution of the mixed steam in the mixing chamber 5 more uniform, so as to further improve the stability of the temperature of the mixed steam delivered by the steam generator 100 of the present invention to the reaction chamber of the analyzer.

[0047] It should be noted that the preset first distance D1 can be determined by the designer based on experience, experiments, calculations, etc., as long as the distance between the end of the heating sleeve 8 close to the mixing chamber 5 and the end of the mixing chamber 5 away from the hot core 2 in the axial direction of the shell 1 is set to be equal to the preset first distance D1, the heating sleeve 8 can heat the shell 1 so that the difference between the temperature of the mixed steam at the top of the mixing chamber 5 and the temperature of the mixed steam at the bottom of the mixing chamber 5 is less than a preset difference threshold, wherein the preset difference threshold may be 0.5°C, 1°C or 1.5°C. Obviously, the preset difference threshold may also be other values, as long as the stability of the steam generator 100 is not affected when the difference between the temperature of the mixed steam at the top of the mixing chamber 5 and the temperature of the mixed steam at the bottom of the mixing chamber 5 is equal to the preset difference threshold.

[0048] Continue reading Figure 1, the distance between the end of the heating sleeve 8 away from the mixing chamber 5 and the annular groove 222 in the axial direction of the shell 1 is equal to the preset second distance D2. Through the above-mentioned arrangement, the end of the heating sleeve 8 away from the mixing chamber 5 cannot directly heat the position corresponding to the annular groove 222 on the shell 1, so as to avoid the evaporation of the liquid entering the annular groove 222 due to the excessive temperature of the annular groove 222. In this way, the flow rate of steam entering the mixing chamber 5 from the first ends of the multiple spiral flow channels 7 can be made the same, thereby reducing the risk of uneven pressure of the mixed steam in the mixing chamber 5, and also reducing the risk of fluctuation of the air pressure of the mixed steam in the mixing chamber 5 due to different flow rates of steam entering the mixing chamber 5 from the multiple spiral flow channels 7, thereby further improving the stability of the pressure of the mixed steam delivered by the steam generator 100 of the present invention to the reaction chamber of the analyzer.

[0049] It should be noted that the value of the preset second distance D2 can be determined by the designer based on experience, experiments or calculations. For example, the value of the preset second distance D2 can be 5 cm, 6 cm, 7 cm or 8 cm. Obviously, the value of the preset second distance D2 can be other values. As long as the distance between the end of the heating sleeve 8 away from the mixing chamber 5 and the annular groove 222 in the axial direction of the shell 1 is equal to the preset second distance D2, it can avoid the evaporation of the liquid in the annular groove 222, and at the same time, when the heating sleeve 8 is in a heating state, the liquid in the multiple spiral flow channels 7 can evaporate into steam before entering the mixing chamber 5.

[0050] Preferably, in the specific implementation of the present invention, the heating sleeve 8 can be a heating copper sleeve, so that the heating copper sleeve can transfer heat to the shell 1 evenly during the heating process, so that the shell 1 can be heated evenly. However, this is not restrictive, and obviously, the heating sleeve 8 can also be made of other materials, such as a heating aluminum sleeve, as long as the heating sleeve 8 can transfer heat to the shell 1 evenly.

[0051] As a possible implementation, Figure 1 As shown, the steam generator 100 also includes a cooling component 3, which is configured to cool the liquid in the liquid annulus 6 so that the liquid in the liquid annulus 6 can always be in a liquid state under the action of the cooling component 3, thereby further ensuring the stability of the pressure of the mixed steam delivered by the steam generator 100 to the reaction chamber of the analyzer.

[0052] For more details, see Figure 1The cooling assembly 3 includes a cooling sleeve 32, a water inlet pipeline 31 and a water outlet pipeline 33. The cooling sleeve 32 is sleeved on the outer wall of the shell 1. The cooling sleeve 32 includes a cooling groove, a water inlet and a water outlet. The cooling groove is circumferentially arranged on the inner wall of the cooling sleeve 32, and the cooling groove is coaxially arranged with the cooling sleeve 32. Specifically, the inner diameter of the cooling sleeve 32 is equal to the outer diameter of the shell 1, so that when the cooling sleeve 32 is sleeved on the shell 1, the cooling groove can form a cooling channel with the outer wall of the shell 1. More specifically, the position of the cooling groove is configured to correspond to the liquid annular channel 6. For example, in the specific implementation of the present invention, the bottom end of the cooling groove (the lower end of the cooling groove in the figure) and the bottom end of the liquid annular channel 6 (the lower end of the annular groove 222 in the figure) are on the same horizontal plane (approximately Figure 1 In the horizontal direction of the liquid annular channel 6 in the cooling groove), the liquid water flowing in the cooling groove can directly cool the shell 1 which is in the same horizontal plane as the liquid annular channel 6, so as to reduce the temperature of the liquid annular channel 6 when the heating sleeve 8 is in the heating state, so that the liquid in the liquid annular channel 6 can always be in a liquid state under the action of the cooling component 3. Moreover, in the specific implementation of the present invention, the height of the cooling groove can be adjusted according to the specific application scenario, so that the liquid water flowing in the cooling groove can not only cool the liquid in the liquid annular channel 6, but also cool the liquid at the end of the plurality of spiral flow channels 7 close to the liquid annular channel 6, so as to further ensure that the liquid in the liquid annular channel 6 can always be in a liquid state.

[0053] Continue reading Figure 1 The water inlet is provided on the outer wall of the cooling jacket 32 ​​and is connected to the cooling groove. The water outlet is provided on the outer wall of the cooling jacket 32, and the water outlet is located at the end of the cooling jacket 32 ​​away from the water inlet. The water inlet pipe 31 is connected to the water inlet, so that the water inlet is connected to the water source through the water inlet pipe. The water outlet pipe 33 is connected to the water outlet, so that the water outlet is connected to the outside of the steam generator 100 through the water outlet pipe 33. Through the above-mentioned arrangement, the liquid water entering the cooling groove from the water inlet can fully contact the outer wall of the shell 1, so as to effectively cool the outer wall of the shell 1.

[0054] It should be noted that although the above combination Figure 1The described cooling assembly 3 includes a cooling sleeve 32, and the cooling sleeve 32 is sleeved on the outer wall of the shell 1, but this is not restrictive. In other embodiments of the present invention, the cooling assembly 3 may also include a cooling channel circumferentially arranged in the outer wall of the shell 1, and the cooling channel surrounds the outer side of the liquid annular channel 6, so that the liquid water in the cooling channel can cool the liquid in the liquid annular channel 6. This adjustment does not deviate from the principle of the present invention, and therefore will also fall within the scope of protection of the present invention. Moreover, without deviating from the basic principle of the present invention, those skilled in the art can flexibly select the specific setting form of the cooling assembly 3 according to the specific application scenario, as long as the cooling of the liquid in the liquid annular channel 6 can be achieved.

[0055] As a possible implementation, Figure 1 As shown, there are multiple liquid inlets 223, and the multiple liquid inlets 223 are evenly distributed around the second end of the hot core 2 ( Figure 1 The bottom end of the intermediate heat core 2 is away from the end face of the mixing chamber 5. Through the above-mentioned arrangement, the liquid can provide liquid to the liquid annulus 6 through multiple liquid inlets 223 at the same time. In this way, the multiple liquid inlets 223 can replenish liquid water to the liquid annulus 6 at a higher flow rate, thereby avoiding the situation where the liquid in the multiple spiral flow channels 7 has a higher evaporation rate and vaporizes, resulting in the appearance of air in the liquid annulus 6. In this way, it is also avoided that the air in the liquid annulus 6 enters the spiral flow channel 7 and causes air pressure fluctuations in the mixing chamber 5, thereby further improving the stability of the pressure of the mixed steam delivered by the steam generator 100 of the present invention to the reaction chamber of the analyzer.

[0056] As a possible implementation, Figure 1 As shown, the steam generator 100 further includes a temperature measuring component 4, which is connected to the hot core 2, and the temperature measuring component 4 is configured to detect the temperature of the mixed steam at the end of the mixing chamber 5 close to the air inlet channel 21. Specifically, the end of the hot core 2 close to the mixing chamber 5 has a conical surface gradually away from the mixing chamber 5 from the center to the outside, and the air inlet channel 21 is arranged at the axial position of the hot core 2, so that the temperature of the mixed steam at the end of the mixing chamber 5 close to the air inlet channel 21 detected by the temperature measuring component 4 is closer to the temperature of the mixed steam discharged from the air outlet 12. Then, the steam generator 100 of the present invention can adjust the power of the heating sleeve 8 according to the temperature of the mixed steam detected by the temperature measuring component 4, so that the temperature of the mixed steam discharged from the air outlet 12 is closer to the target temperature required by the reaction chamber of the adsorption instrument, thereby further improving the accuracy of the temperature of the mixed steam delivered to the outside by the steam generator 100 of the present invention.

[0057] As a possible implementation, Figure 1As shown, the temperature measuring assembly 4 includes a three-way joint 41 and a temperature sensor 42. The first end of the three-way joint 41 is sealed and connected to the end of the air inlet channel 21 away from the mixing chamber 5. The second end of the three-way joint 41 is connected to the gas source. The third end of the three-way joint 41 is located in the same straight line as the first end of the three-way joint 41. The temperature sensor 42 is inserted from the second end of the three-way joint 41 and passes through the first end of the three-way joint 41, and extends to the end of the air inlet channel 21 close to the mixing chamber 5, wherein the temperature sensor 42 is sealed and connected to the second end of the three-way joint 41. Specifically, the inner diameter of the pipeline of the three-way joint 41 and the air inlet channel 21 is larger than the outer diameter of the temperature sensor 42, so that the gas entering from the second end of the three-way joint 41 can flow through the air inlet channel 21 through the three-way joint 41 and finally enter the mixing chamber 5. More specifically, in the implementation of the present invention, the end of the temperature sensor 42 close to the mixing chamber 5 protrudes from the end of the hot core 2 close to the mixing chamber 5 so that the temperature sensor 42 can detect the temperature of the mixed steam at the end of the mixing chamber 5 close to the intake passage 21.

[0058] It should be noted that although the above combination Figure 1 The described temperature measuring component 4 includes a three-way joint 41 and a temperature sensor 42, but this is not restrictive. In other embodiments of the present invention, the temperature measuring component 4 may also only include the temperature sensor 42. In this case, the temperature sensor 42 is arranged at the end of the hot core 2 close to the mixing chamber 5, and is used to detect the temperature of the mixed steam at the end of the mixing chamber 5 close to the air inlet channel 21, but this is not restrictive. Without departing from the basic principles of the present invention, technical personnel in this field can flexibly select the specific setting position of the temperature sensor 42 according to the specific application scenario, as long as the temperature sensor 42 can detect the temperature of the mixed steam at the end of the mixing chamber 5 close to the hot core 2.

[0059] Preferably, Figure 1 As shown, in the specific implementation of the present invention, the hot core 2 also includes a buffer heating chamber 211, which is coaxially arranged with the air inlet channel 21, and the diameter of the buffer heating chamber 211 is larger than the diameter of the air inlet channel 21, so that after the gas enters the hot core 2 through the air inlet channel 21, it can fully contact with the inner wall of the buffer heating chamber 21, so that the gas can be quickly heated inside the hot core 2, so as to improve the heating efficiency of the hot core 2 for the gas, so as to ensure that the temperature of the mixed steam can meet the use requirements.

[0060] In addition, this embodiment further provides an analyzer, which includes the steam generator 100 described above.

[0061] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims of the present invention, any one of the claimed embodiments may be used in any combination.

[0062] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A steam generator, characterized in that: The steam generator (100) comprises: A housing (1) is provided with a receiving cavity (11) along an axial direction, and a first end of the receiving cavity (11) is provided with an air outlet (12); a hot core (2), which is plugged into the second end of the accommodating chamber (11) and is sealed to the side wall of the accommodating chamber (11); the hot core (2) comprises an air inlet channel (21) and a liquid inlet channel (22); the air inlet channel (21) and the liquid inlet channel (22) extend from the first end of the hot core (2) to the second end of the hot core (2) along the axial direction of the hot core (2); the hot core (2) is configured such that when plugged into place, the first end of the hot core (2) and the accommodating chamber (11) form a mixing chamber (5); the mixing chamber (5) is connected to a source of liquid to be evaporated through the liquid inlet channel (22); and the air inlet channel (21) of the mixing chamber (5) is connected to an air source; and A heating sleeve (8) is sleeved on the outer wall of the shell (1), and the heating sleeve (8) is arranged corresponding to the accommodating cavity (11) and is used to heat the hot core (2) and the mixing cavity (5).

2. The steam generator according to claim 1, characterized in that: The liquid inlet channel (22) comprises: a spiral groove (221) which is circumferentially arranged on the outer wall of the hot core (2), the spiral groove (221) being configured such that after the hot core (2) is plugged into place, the spiral groove (221) and the inner wall of the accommodating chamber (11) form a spiral flow channel (7), and a first end of the spiral groove (221) is in communication with the mixing chamber (5); and A liquid inlet (223) is provided at the second end of the heat core (2), and the liquid inlet (223) is communicated with the spiral flow channel (7).

3. The steam generator according to claim 2, characterized in that: The number of the spiral grooves (221) is multiple, and the multiple spiral grooves (221) are evenly distributed on the outer wall of the hot core (2); the liquid inlet channel (22) also includes an annular groove (222), and the annular groove (222) is arranged between the liquid inlet (223) and the spiral groove (221); the end of the annular groove (222) away from the liquid inlet (223) is connected to the second end of the spiral groove (221); the end of the annular groove (222) away from the spiral groove (221) is connected to the liquid inlet (223); the annular groove (222) is configured such that when the hot core (2) is plugged into place, the annular groove (222) can form a liquid annular channel (6) with the inner wall of the accommodating cavity (11).

4. The steam generator according to claim 3, characterized in that: The distance between the end of the heating sleeve (8) close to the mixing chamber (5) and the end of the mixing chamber (5) away from the hot core (2) in the axial direction of the shell (1) is equal to a preset first distance D1, and the distance between the end of the heating sleeve (8) away from the mixing chamber (5) and the annular groove (222) in the axial direction of the shell (1) is equal to a preset second distance D2.

5. The steam generator according to claim 3, characterized in that: The steam generator (100) further comprises a cooling component (3), wherein the cooling component (3) is configured to cool the liquid in the liquid annular channel (6), so that the liquid in the liquid annular channel (6) can always be in a liquid state under the action of the cooling component (3).

6. The steam generator according to claim 5, characterized in that: The cooling assembly (3) comprises: A cooling sleeve (32) is sleeved on the outer wall of the shell (1), the cooling sleeve (32) comprising a cooling groove, a water inlet and a water outlet, the cooling groove circumferentially surrounds the inner wall of the cooling sleeve (32), the position of the cooling groove is configured to correspond to the liquid annular channel (6), so that water in the cooling groove can cool the liquid in the liquid annular channel (6), the water inlet is opened on the outer wall of the cooling sleeve (32) and communicates with the cooling groove, the water outlet is opened on the outer wall of the cooling sleeve (32), and the water outlet is located at the end of the cooling sleeve (32) away from the water inlet; a water inlet pipeline (31) which is in communication with the water inlet, so that the water inlet is in communication with a cooling water source through the water inlet pipeline (31); and A water outlet pipeline (33) is in communication with the water outlet, so that the water outlet is in communication with the outside of the steam generator (100) through the water outlet pipeline (33).

7. The steam generator according to claim 2, characterized in that: The number of the liquid inlets (223) is multiple, and the multiple liquid inlets (223) are evenly distributed in the circumferential direction on the end surface of the second end of the hot core (2) away from the mixing chamber (5).

8. The steam generator according to claim 1, characterized in that: The steam generator (100) further comprises a temperature measuring component (4), the temperature measuring component (4) being connected to the hot core (2), the temperature measuring component (4) being configured to detect the temperature of the mixed steam at the end of the mixing chamber (5) close to the air inlet passage (21).

9. The steam generator according to claim 8, characterized in that: The temperature measuring component (4) comprises: a three-way joint (41), a first end of which is sealedly connected to an end of the air inlet passage (21) away from the mixing chamber (5), a second end of the three-way joint (41) is connected to the air source, and a third end of the three-way joint (41) is located in the same straight line as the first end of the three-way joint (41); and A temperature sensor (42) is inserted from the second end of the three-way joint (41), passes through the first end of the three-way joint (41), and extends to the end of the air inlet passage (21) close to the mixing chamber (5), wherein the temperature sensor (42) is sealedly connected to the second end of the three-way joint (41).

10. An analyzer, characterized in that: The analyzer comprises the steam generator (100) according to any one of claims 1-9.

Images