Condensing device and acid hydrolysis instrument
By capturing and recirculating the vapor during the acid hydrolysis process using a condensation device, the problems of concentration changes and corrosion caused by hydrochloric acid volatilization are solved, thus achieving stability of the hydrolysate concentration and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2026-03-17
AI Technical Summary
In traditional acid hydrolysis processes, the volatilization of hydrochloric acid gas leads to changes in the concentration of the hydrolysate and equipment corrosion, which endangers health and the environment.
A condensation device, including a condenser cover assembly and condenser tubes, is used to capture and return vapor through a coolant flow path and heat exchange to maintain a stable concentration of hydrolysate and prevent acid gas emissions.
It effectively maintains a stable concentration of hydrolysate, prevents acid gas pollution of the environment, and protects equipment and health.
Smart Images
Figure CN223995438U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of acid hydrolysis technology, and in particular to a condensation device and an acid hydrolysis apparatus. Background Technology
[0002] In the fields of chemical analysis and organic synthesis, acid hydrolysis is a common pretreatment method used to break down complex compounds to release analyzable components. Specifically, acid hydrolysis technology is widely used in various industries such as food, pharmaceuticals, and environmental monitoring to determine the content or structure of specific components.
[0003] Traditional acid hydrolysis typically involves mixing the sample with a hydrochloric acid solution of a specific concentration and heating it to a designated temperature to accelerate the reaction. During this process, maintaining a relatively high temperature is often necessary to ensure complete hydrolysis of the target substance in the sample. However, in practice, the heating step inevitably leads to hydrochloric acid volatilization and water evaporation. These two phenomena not only alter the original concentration ratio of the hydrolysate, thus deviating from the final experimental results, but also the evaporated hydrochloric acid gas is highly corrosive and toxic.
[0004] On the one hand, the release of hydrochloric acid gas reduces the acidity within the hydrolysis system, affecting reaction efficiency and product purity. On the other hand, high concentrations of hydrochloric acid vapor have a strong corrosive effect on laboratory equipment, shortening its lifespan and increasing maintenance costs. More seriously, hydrochloric acid gas poses a threat to human health; long-term exposure may cause respiratory diseases and other health problems, while also polluting the surrounding atmosphere. Utility Model Content
[0005] The purpose of this invention is to provide a condensation device and an acid hydrolyzer to alleviate the technical problem of vapor leakage during the hydrolysis process.
[0006] In a first aspect, the condensation device provided by this utility model includes: a condenser cover assembly and a condenser tube;
[0007] The condenser cap assembly is used to cover the hydrolysis container, and the condenser cap assembly is provided with a first coolant flow path;
[0008] The condenser tube is connected to the condenser cap assembly;
[0009] The condenser tube is provided with a condensing gas path and a second coolant flow path. The condensing gas path exchanges heat with the second coolant flow path, and the condensing gas path is in fluid communication with the hydrolysis container.
[0010] In conjunction with the first aspect, this utility model provides a first possible implementation of the first aspect, wherein the condenser cover assembly includes: a cover body, an acid gas suction pipe, an acid liquid return pipe, and a pressure balancing pipe;
[0011] The cover is provided with the first coolant flow path, and the acid gas suction pipe, the acid liquid return pipe and the balance pressure pipe are respectively connected to the cover, and the acid gas suction pipe, the acid liquid return pipe and the balance pressure pipe are respectively in fluid communication with the condensate gas path.
[0012] In conjunction with the first possible implementation of the first aspect, the present invention provides a second possible implementation of the first aspect, wherein the cover includes an upper cover and a lower cover, the upper cover being connected to and sealed with the lower cover, and the first coolant flow path being formed between the upper cover and the lower cover.
[0013] In conjunction with the first possible implementation of the first aspect, this utility model provides a third possible implementation of the first aspect, wherein the condenser tube is provided with an acid gas inlet, an acid discharge outlet and a gas pressure inlet, the acid gas inlet is located at the top of the condenser tube, the acid discharge outlet is located at the bottom of the condenser tube, and the acid gas inlet and the acid discharge outlet are respectively connected to the condensing gas path;
[0014] The balancing pressure pipe and the condensate gas path are in fluid communication through the gas pressure inlet.
[0015] In conjunction with the third possible implementation of the first aspect, this utility model provides a fourth possible implementation of the first aspect, wherein the condenser tube is further provided with an acid gas outlet, the acid gas outlet is in fluid communication with a diaphragm pump, and the diaphragm pump is in fluid communication with the hydrolysis container.
[0016] In conjunction with the fourth possible implementation of the first aspect, this utility model provides a fifth possible implementation of the first aspect, wherein the condensate gas path includes a spiral pipe, one end of the spiral pipe is in fluid communication with the acid gas inlet, and the other end of the spiral pipe is in fluid communication with the acid gas outlet.
[0017] In conjunction with the fifth possible implementation of the first aspect, this utility model provides a sixth possible implementation of the first aspect, wherein the condensate gas path further includes a buffer chamber, and the acid gas inlet, the buffer chamber and the spiral pipeline are in sequential fluid communication.
[0018] In conjunction with the first aspect, this utility model provides a seventh possible implementation of the first aspect, wherein the second coolant flow path surrounds the outside of the condensate gas path.
[0019] In conjunction with the first aspect, this utility model provides an eighth possible implementation of the first aspect, wherein the bottom of the second coolant flow path is in fluid communication with the condensate inlet, and the top of the second coolant flow path is in fluid communication with the condensate outlet.
[0020] Secondly, the acid hydrolyzer provided by this utility model is equipped with the condensation device described in the first aspect.
[0021] The present invention provides the following beneficial effects: a condenser cap assembly is used to cover the hydrolysis container, and the condenser cap assembly is provided with a first coolant flow path. A condenser pipe is connected to the condenser cap assembly, and the condenser pipe is provided with a condenser gas path and a second coolant flow path. The condenser gas path and the second coolant flow path exchange heat, and the condenser gas path is in fluid communication with the hydrolysis container. During the hydrolysis process, a portion of the vapor can be blocked and condensed by the condenser cap assembly, and thus flow into the hydrolysis container. Another portion of the vapor can be condensed into liquid in the condenser gas path and flow back into the hydrolysis container. This alleviates the technical problem of changes in hydrolysate concentration caused by evaporation, maintains a stable hydrolysate concentration, and avoids the impact of acid gas on the atmospheric environment.
[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0024] Figure 1 A schematic diagram of the condensation device and hydrolysis container provided in the embodiments of this utility model;
[0025] Figure 2 An exploded view of the condenser cover assembly of the condensing device provided in an embodiment of this utility model;
[0026] Figure 3 A cross-sectional view of the condenser cover assembly of the condensing device provided in an embodiment of this utility model;
[0027] Figure 4 A schematic diagram of the condenser tube of the condensing device provided in an embodiment of this utility model;
[0028] Figure 5 A cross-sectional view of the condenser tube of the condensing device provided in an embodiment of this utility model.
[0029] Icons: 100 - Condenser cover assembly; 110 - First coolant flow path; 120 - Cover body; 121 - Upper cover; 122 - Lower cover; 123 - First sealing ring; 124 - Second sealing ring; 130 - Acid gas intake pipe; 140 - Acid liquid return pipe; 150 - Balance pressure pipe; 160 - Support; 170 - Third sealing ring; 200 - Condenser pipe; 201 - Acid gas inlet; 202 - Acid discharge port; 203 - Gas pressure inlet; 204 - Acid gas outlet; 205 - Condensate inlet; 206 - Condensate outlet; 207 - Vent; 210 - Condensate gas path; 211 - Spiral pipeline; 212 - Buffer chamber; 220 - Second coolant flow path; 300 - Diaphragm pump; 400 - Hydrolysis container. Detailed Implementation
[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are only used to describe differences in name and should not be construed as indicating or implying relative importance. Physical quantities in formulas, unless otherwise specified, should be understood as basic quantities of the International System of Units (SI) base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.
[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] like Figure 1 , Figure 2 and Figure 5As shown, the condensation device provided in this embodiment of the present invention includes: a condensation cover assembly 100 and a condensation tube 200; the condensation cover assembly 100 is used to cover the hydrolysis container 400, and the condensation cover assembly 100 is provided with a first coolant flow path 110; the condensation tube 200 is connected to the condensation cover assembly 100; the condensation tube 200 is provided with a condensation gas path 210 and a second coolant flow path 220, the condensation gas path 210 and the second coolant flow path 220 exchange heat, and the condensation gas path 210 is in fluid communication with the hydrolysis container 400.
[0034] During the hydrolysis process, a heating device can be used to heat the hydrolysate in the hydrolysis container 400. Part of the vapor generated by the hydrolysate is blocked by the condenser cap assembly 100 and condensed into liquid, and then drips back into the hydrolysis container 400. The other part of the vapor can be introduced into the condensation gas path 210. The temperature of the condenser cap assembly 100 and the condenser tube 200 is reduced by the coolant flowing through the first coolant flow path 110 and the second coolant flow path 220. The vapor can flow along the condensation gas path 210 and condense into liquid, and then flow back into the hydrolysis container 400. This alleviates the technical problem of changes in the concentration of the hydrolysate caused by evaporation, maintains a stable concentration of the hydrolysate, and avoids the impact of acid gas on the atmospheric environment.
[0035] like Figure 1 , Figure 2 and Figure 3 As shown in the embodiment of this utility model, the condenser cover assembly 100 includes: a cover body 120, an acid gas suction pipe 130, an acid liquid return pipe 140, and a balance pressure pipe 150; the cover body 120 is provided with a first coolant flow path 110, the acid gas suction pipe 130, the acid liquid return pipe 140, and the balance pressure pipe 150 are respectively connected to the cover body 120, and the acid gas suction pipe 130, the acid liquid return pipe 140, and the balance pressure pipe 150 are respectively in fluid communication with the condenser gas path 210.
[0036] The cover 120 is placed over the top of the hydrolysis container 400, blocking the vapor. Furthermore, the coolant flowing through the first coolant flow path 110 absorbs heat, thus lowering the temperature of the cover 120 and facilitating condensation of the vapor upon contact with it. The acidic gas produced by evaporation enters the condensation gas path 210 through the acid gas suction pipe 130, and the condensed liquid acid is returned to the hydrolysis container 400 through the acid return pipe 140.
[0037] In addition, to ensure that the internal and external pressure of the hydrolysis container 400 is kept balanced, the hydrolysis container 400 and the condensation gas path 210 can be connected through the balancing pressure pipe 150. On the one hand, this can prevent the hydrolysate vapor from leaking out when the internal pressure of the hydrolysis container 400 is too high. On the other hand, it can replenish gas when the hydrolysis container 400 is under low pressure to maintain the internal and external pressure balance.
[0038] Furthermore, the cover 120 includes an upper cover 121 and a lower cover 122, the upper cover 121 and the lower cover 122 are connected and sealed, and a first coolant flow path 110 is formed between the upper cover 121 and the lower cover 122.
[0039] Specifically, grooves are provided on the opposite end faces of the upper cover 121 and the lower cover 122. After the upper cover 121 and the lower cover 122 are aligned and tightly connected, a first coolant flow path 110 can be formed between the upper cover 121 and the lower cover 122. In addition, a first sealing ring 123 and a second sealing ring 124 can be installed between the upper cover 121 and the lower cover 122. The first sealing ring 123 is located inside the second sealing ring 124, and the first coolant flow path 110 is located in the area between the first sealing ring 123 and the second sealing ring 124, thereby ensuring that the first coolant flow path 110 is well sealed.
[0040] In an optional embodiment, the cover 120 can be connected to the bracket 160, which is adapted to the opening of the hydrolysis container 400. A third sealing ring 170 can be installed between the bracket 160 and the hydrolysis container 400 to ensure that the condenser cover assembly 100 can tightly cover the hydrolysis container 400.
[0041] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the condenser tube 200 is provided with an acid gas inlet 201, an acid discharge port 202, and a pressure inlet 203. The acid gas inlet 201 is located at the top of the condenser tube 200, and the acid discharge port 202 is located at the bottom of the condenser tube 200. The acid gas inlet 201 and the acid discharge port 202 are respectively connected to the condensing gas passage 210. The balancing pressure pipe 150 is fluidly connected to the condensing gas passage 210 through the pressure inlet 203. Among them, the acid gas inlet 201 is connected to the acid gas suction pipe 130, and the acid discharge port 202 is connected to the acid liquid return pipe 140. In addition, the condenser tube 200 is provided with a vent 207 connecting to the condensing gas passage 210. External air can enter through the vent 207. When the gas pressure inside the hydrolysis container 400 is lower than the external gas pressure, external air can flow through the vent 207 and the pressure inlet 203 into the hydrolysis container 400, thereby maintaining the pressure balance inside and outside the hydrolysis container 400.
[0042] In addition, the condenser tube 200 is also provided with an acid gas outlet 204, which is in fluid communication with the diaphragm pump 300, and the diaphragm pump 300 is in fluid communication with the hydrolysis container 400. The diaphragm pump 300 can drive most of the vapor from the hydrolysis container 400 into the condensation gas path 210. The acidic liquid liquefied in the condensation gas path 210 can flow into the hydrolysis container 400 through the acid drain port 202, and the gas is then circulated back into the hydrolysis container 400 through the acid gas outlet 204, thus creating a cycle.
[0043] Furthermore, the condensation gas path 210 includes a spiral pipe 211, one end of which is in fluid communication with the acid gas inlet 201, and the other end of which is in fluid communication with the acid gas outlet 204. The spiral pipe 211 extends in a spiral manner, thereby increasing the heat exchange area between the spiral pipe 211 and the second coolant flow path 220 and improving the heat exchange efficiency.
[0044] In addition, the condensation gas path 210 also includes a buffer chamber 212, and the acid gas inlet 201, the buffer chamber 212 and the spiral pipeline 211 are in sequential fluid communication.
[0045] After the steam passes through the buffer chamber 212 to reduce its mechanical energy, it flows into the spiral pipe 211, which can reduce the steam flow rate and thus prolong the heat exchange time of the steam in the spiral pipe 211, thereby fully liquefying the acid gas.
[0046] In this embodiment, the second coolant flow path 220 is arranged outside the condenser gas path 210. The coolant flowing through the second coolant flow path 220 dissipates heat from the condenser gas path 210. Furthermore, the arrangement of the second coolant flow path 220 around the condenser gas path 210 prevents the heat from dissipating from the condenser gas path 210.
[0047] Furthermore, the bottom of the second coolant flow path 220 is in fluid communication with the condensate inlet 205, and the top of the second coolant flow path 220 is in fluid communication with the condensate outlet 206.
[0048] In the second coolant flow path 220, the coolant flows from bottom to top, while the airflow in the condensation gas path 210 flows from top to bottom along the buffer chamber 212 and the spiral pipe 211 in sequence, so that the heat exchange between the steam and the coolant is more complete.
[0049] The acid hydrolyzer provided in this embodiment is equipped with the condensation device described in the above embodiments. The acid hydrolyzer has the beneficial effects of the condensation device, which can alleviate the concentration change of the hydrolysate caused by evaporation. Further details will not be provided here.
[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A condensation device, characterized in that, The application relates to a condensing cover assembly (100) and a condensing pipe (200). The condensing cover assembly (100) is used for covering a hydrolysis container (400), and the condensing cover assembly (100) is provided with a first cooling liquid flow path (110). The condensing pipe (200) is connected with the condensing cover assembly (100). The condensing pipe (200) is provided with a condensing gas path (210) and a second cooling liquid flow path (220), the condensing gas path (210) is in heat exchange with the second cooling liquid flow path (220), and the condensing gas path (210) is in fluid communication with the hydrolysis container (400). The condensing cover assembly (100) comprises a cover body (120), an acid gas suction pipe (130), an acid liquid return pipe (140) and a balance pressure pipe (150).
2. The condensing apparatus according to claim 1, wherein The cover body (120) is provided with the first cooling liquid flow path (110), the acid gas suction pipe (130), the acid liquid return pipe (140) and the balance pressure pipe (150) are connected with the cover body (120) respectively, and the acid gas suction pipe (130), the acid liquid return pipe (140) and the balance pressure pipe (150) are in fluid communication with the condensing gas path (210) respectively. The cover body (120) comprises an upper cover (121) and a lower cover (122), the upper cover (121) is connected and sealed with the lower cover (122), and the first cooling liquid flow path (110) is formed between the upper cover (121) and the lower cover (122).
3. The condensing apparatus of claim 2, wherein The condensing pipe (200) is provided with an acid gas inlet (201), an acid outlet (202) and a gas pressure inlet (203), the acid gas inlet (201) is arranged at the top of the condensing pipe (200), the acid outlet (202) is arranged at the bottom of the condensing pipe (200), and the acid gas inlet (201) and the acid outlet (202) are in communication with the condensing gas path (210) respectively.
4. The condensing apparatus of claim 2, wherein The balance pressure pipe (150) is in fluid communication with the condensing gas path (210) through the gas pressure inlet (203). The condensing pipe (200) is further provided with an acid gas outlet (204), the acid gas outlet (204) is in fluid communication with a diaphragm pump (300), and the diaphragm pump (300) is in fluid communication with the hydrolysis container (400).
5. The condensing apparatus of claim 4, wherein The condensing gas path (210) comprises a spiral pipe path (211), one end of the spiral pipe path (211) is in fluid communication with the acid gas inlet (201), and the other end of the spiral pipe path (211) is in fluid communication with the acid gas outlet (204).
6. The condensing apparatus of claim 5, wherein The condensing gas path (210) further comprises a buffer cavity (212), the acid gas inlet (201), the buffer cavity (212) and the spiral pipe path (211) are in fluid communication in sequence.
7. The condensing apparatus of claim 6, wherein The second cooling liquid flow path (220) is arranged outside the condensing gas path (210).
8. The condensing apparatus of claim 1 wherein, The bottom of the second cooling liquid flow path (220) is in fluid communication with a condensing water inlet (205), and the top of the second cooling liquid flow path (220) is in fluid communication with a condensing water outlet (206).
9. The condensing apparatus according to claim 1 or 8, characterized by 10. An acid hydrolysis apparatus characterized by comprising: The acid hydrolysis apparatus is equipped with a condenser according to any one of claims 1 to 9.