Condenser structure of vacuum paste mixing machine

Abstract

The utility model discloses a condenser structure of a vacuum paste mixing machine, which belongs to the technical field of power batteries, comprises a condenser mounted in the vacuum paste mixing machine, and is characterized in that the condenser comprises a water collector, a water outlet is arranged in the water collector and communicated with a water drainage pipe, an outlet of the water drainage pipe is positioned outside the vacuum paste mixing machine, and the water outlet of the water drainage pipe is communicated with the vacuum paste mixing machine. The outlet of the drain pipe is arranged outside the vacuum paste mixer, so that water vapor generated in the reaction process can be completely discharged out of the vacuum paste mixer after being condensed and does not participate in the reaction, and the problems that in the prior art, in the reaction process of a paste mixer, part of water cannot participate in construction of a lead paste structure in time, so that the prepared lead paste is large in apparent specific gravity, and the lead paste cannot be separated are solved. And after filling to form a polar plate and curing, the porosity of the active substance is relatively low, the formation difficulty is increased, and the initial capacity of the battery is relatively low.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, in particular to a condenser structure of a vacuum paste mixing machine. Background Art

[0002] In the field of power batteries, during the manufacturing process of valve-regulated lead-acid batteries, vacuum paste mixers are favored by the industry for their advantages such as being unaffected by ambient temperature and atmospheric humidity, ensuring accurate formula, preventing loss of raw materials, precise temperature control, closed environmental protection system, and highly consistent and stable lead paste output. However, in the production process, some problems caused by the limitations of the equipment itself still exist, such as: the condenser of the vacuum paste mixer cannot ensure that the vapor of the formula water is condensed and refluxed in time during the preparation of the lead paste, resulting in a considerable portion of the formula water being unable to participate in the reaction process in time. This portion of water is doped in the prepared lead paste in a free state, and can only play a role in controlling the apparent specific gravity of the lead paste, but does not participate in the construction of the lead paste structure; resulting in the apparent specific gravity of the prepared lead paste being too large, and after being filled into the plate and solidified, the porosity of the active material is too low, and the difficulty of formation is increased, resulting in a low initial capacity of the battery.

[0003] For example, the "A Vacuum Paste Mixing Machine Condensate Recycling Device" disclosed in the Chinese patent literature has a publication number of CN214588914U, which includes a reaction tank, a condenser connected to the reaction tank is fixed at the upper end of the tank mouth of the reaction tank, a fence connected to the tank mouth of the reaction tank is fixed inside the condenser, a condensate collection space is formed between the fence and the condenser shell, a baffle is fixed above the fence, the outer edge of the baffle is located above the condensate collection space, a gap is set between the lower end of the baffle and the upper end of the fence to allow water vapor to rise, a water pipe is fixed at the lower end of the condenser shell, the upper end of the water pipe is connected to the condensate collection space, the lower end of the water pipe is connected to the reaction tank, and a valve is installed on the water pipe. The shortcoming of this patent is that the condensate backflows into the reaction tank with a certain delay, resulting in that part of the water cannot participate in the construction of the lead paste structure in time during the reaction process, resulting in the apparent specific gravity of the prepared lead paste being too large, and after being filled into the plate and solidified, the active material porosity is low, the formation difficulty increases, and the initial capacity of the battery is low. Utility Model Content

[0004] The utility model aims to overcome the problem in the prior art that, during the reaction process of the paste mixing machine, part of the water cannot be timely involved in the construction of the lead paste structure, resulting in a larger apparent specific gravity of the prepared lead paste, and after being filled into a plate and solidified, the porosity of the active material is relatively low, the formation difficulty is increased, and the initial capacity of the battery is relatively low. A condenser structure of a vacuum paste mixing machine is provided, and by improving the condenser structure, the influence of the condensation process on the reaction process of the paste mixing machine is avoided, thereby improving the product quality.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a condenser structure of a vacuum paste mixing machine, comprising a condenser installed in the vacuum paste mixing machine, and is characterized in that the condenser comprises a water collector, a drain outlet is provided in the water collector, the drain outlet is connected to a drain pipe, and the outlet of the drain pipe is located outside the vacuum paste mixing machine.

[0007] In the prior art, due to the evaporation and condensation process of water during the reaction, part of the water will not be able to participate in the reaction in time. Therefore, if the water content of the formula is increased, the apparent specific gravity of the lead paste will increase. If the water content of the formula is not increased, the quality of the lead paste structure after the reaction is poor. In this application, by setting the outlet of the drain pipe outside the vacuum paste machine, the water vapor generated during the reaction can be condensed and discharged from the vacuum paste machine without participating in the reaction. In this way, as long as the amount of water evaporated in the original preparation process is increased on the basis of the amount of water added in the original formula during wet mixing, the above problem can be solved. According to experimental data verification, the apparent specific gravity of the prepared lead paste can be reduced by 0.1g / cm3, the fillability of the lead paste has also been significantly improved, the subsequent active material porosity is increased by 7.50%~10.00%, and the initial capacity of the battery is increased by 8.21%.

[0008] Preferably, the present application further comprises a gas buffer chamber, wherein the water collector is located inside the gas buffer chamber, and a water vapor channel is formed between the gas buffer chamber and the water collector. The gas flow rate can be slowed down in advance through the gas buffer chamber, thereby ensuring that the gas has sufficient time to contact the condensation structure.

[0009] Preferably, the water collector is coaxially arranged with the gas buffer chamber, and there are a plurality of water vapor channels, which are evenly distributed circumferentially between the gas buffer chamber and the water collector. The water vapor can be diverted before contacting the condensation structure through a plurality of water vapor channels. During the diversion process, the speed of the water vapor will be further reduced, thereby avoiding passing through the condensation structure too quickly. At the same time, the provision of a plurality of water vapor channels can also avoid excessive concentration of water vapor on the horizontal cross section, resulting in a smaller contact surface with the condensation structure. In addition, the circumferential arrangement of the water vapor channels makes the opening of a single water vapor channel smaller, and the refluxed condensed water is not easy to enter the water vapor channel and reflux into the reaction area of ​​the paste mixing machine.

[0010] Preferably, the upper side of the water collector is open, the drain port is arranged on the bottom of the water collector, and the drain pipe passes through the gas buffer chamber and is led outward. The open water collector can more conveniently collect condensed reflux water, and the drain port arranged on the bottom can ensure that all water in the water collector can be discharged.

[0011] Preferably, the present application further comprises a condensation water chamber, wherein a heat exchange tube is arranged in the condensation water chamber, wherein the heat exchange tube is connected to the gas buffer chamber, wherein an upper baffle is arranged at the upper part of the condensation water chamber, and a lower baffle is arranged at the lower part of the condensation water chamber. Heat exchange condensation can be achieved through the condensate in the heat exchange tube.

[0012] Preferably, there are a plurality of heat exchange tubes, which are arranged vertically and in parallel, and the lower ends of the plurality of heat exchange tubes are all aligned with the water collector. Through the plurality of heat exchange tubes, the heat exchange area between water vapor and condensed water can be increased as much as possible in a limited space, and the position setting of the lower ends of the heat exchange tubes can ensure that the refluxed condensed water falls into the water collector and does not flow back into the reaction area of ​​the paste mixing machine.

[0013] Preferably, a condensate inlet is provided at the lower part of the condensate chamber, and a condensate outlet is provided at the upper part of the condensate chamber. By setting the positions of the condensate inlet and outlet in this solution, the condensate can flow from bottom to top, so that the temperature of the condensate at the lower part is lower, and the condensate with a lower temperature contacts the water vapor first, which can increase the condensation speed and avoid that the water vapor does not have enough time to complete the heat exchange in the heat exchange tube.

[0014] Preferably, an upper cover is connected to the top of the condensed water chamber, and a vacuum tube interface is provided on the upper cover, so that a vacuum chamber is formed between the upper cover and the upper baffle. The vacuum chamber is used to generate the negative pressure environment required in the reaction process of the paste mixing machine, and in the present application, by arranging the vacuum chamber above the condensed water chamber, the water vapor can be completely condensed before entering the vacuum chamber, thereby preventing the water vapor in the reaction process of the paste mixing machine from entering the vacuum structure.

[0015] Preferably, the upper cover and the condensate water chamber are connected via a first flange.

[0016] Preferably, the condensate chamber and the gas buffer chamber are connected via a second flange.

[0017] Therefore, the utility model has the following beneficial effects: (1) by conducting the condensate out of the paste mixer, it is possible to prevent the water vapor in the reflux process from being unable to participate in the reaction in time, thereby improving product quality; (2) it is possible to prevent the water vapor from refluxing into the reaction area of ​​the paste mixer, causing a change in the formula water. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the external structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the internal structure of the second embodiment of the utility model.

[0021] In the figure: main airway pipe 1 upper cover 2 condensate water chamber 3 gas buffer chamber 4 first flange 5 second flange 6 water collecting chamber 7 water vapor channel 8 drain port 9 drain pipe 10 upper baffle 11 lower baffle 12 condensate water outlet 13 condensate water inlet 14 heat exchange tube 15 vacuum tube interface 16. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Embodiment 1, as Figure 1-2 As shown, a condenser structure of a vacuum paste mixing machine includes a vacuum paste mixing machine and a condenser installed in the vacuum paste mixing machine. The condenser is arranged on the upper part of the vacuum paste mixing machine, and the two are connected through a vertically arranged main airway pipe 1.

[0024] The shell structure of the condenser includes three parts from top to bottom: an upper cover 2, a condensate water chamber 3, and a gas buffer chamber 4. The upper cover 2 is connected to the condensate water chamber 3 via a first flange 5, and the condensate water chamber 3 is connected to the gas buffer chamber 4 via a second flange 6.

[0025] The gas buffer chamber 4 is cylindrical in shape, and its interior is a hollow structure, and a water collector is provided inside. The water collector is provided with an upwardly open water collecting chamber 7, and the water collecting chamber 7 is coaxially arranged with the gas buffer chamber 4. The inner diameter of the water collecting chamber 7 is designed to be 0.5-0.9 times the inner diameter of the gas buffer chamber 4. A water vapor channel 8 is formed between the gas buffer chamber 4 and the water collector.

[0026] A first buffer zone is formed between the lower side of the water collecting chamber 7 and the bottom surface of the gas buffer chamber 4. After the water vapor entering the gas buffer chamber 4 through the main airway pipe 1 hits the lower side of the water collecting chamber 7, its kinetic energy is consumed and diffuses around along the lower side of the water collecting chamber 7, thereby entering the water vapor channel 8. A second buffer zone is formed between the upper side of the water collecting chamber 7 and the upper side of the gas buffer chamber 4. The water vapor passing through the water vapor channel 8 converges in the second buffer zone and consumes its kinetic energy again. Through the gas buffer chamber 4, the gas flow rate can be slowed down in advance, thereby ensuring that the gas has enough time to contact the condensation structure.

[0027] A drain port 9 is provided at the bottom of the water collecting chamber 7, and the drain port 9 is connected to a drain pipe 10, and the outlet of the drain pipe 10 is located outside the vacuum paste mixing machine. The portion of the drain pipe 10 located inside the paste mixing machine is L-shaped, and one end thereof connected to the drain port 9 is in a vertical direction, and passes downward through the bottom surface of the gas buffer chamber 4. The drain pipe 10 should be fully sealed at the point where it passes through the gas buffer chamber 4 to prevent gas leakage. The other section of the drain pipe 10 is in a horizontal direction, and one end of the horizontal drain pipe 10 is located outside the paste mixing machine. When designing, the vertical portion of the drain pipe 10 should not be too much lower than the bottom surface of the gas buffer chamber 4 to prevent the gas to be discharged from evaporating again due to the temperature inside the paste mixing machine.

[0028] In the prior art, due to the evaporation and condensation of water during the reaction, part of the water will not be able to participate in the reaction in time. Therefore, if the water content of the formula is increased, the apparent specific gravity of the lead paste will increase. If the water content of the formula is not increased, the quality of the lead paste structure after the reaction is poor. In this application, by setting the outlet of the drain pipe 10 outside the vacuum paste machine, the water vapor generated during the reaction can be condensed and discharged from the vacuum paste machine without participating in the reaction. After calculation and experimental verification, it is concluded that the amount of water evaporated during the preparation of each pot of paste is a certain value. Based on this, as long as the amount of water evaporated in the original preparation process is increased on the basis of the amount of water added in the original formula during wet mixing, the above problem can be solved. According to experimental data verification, the apparent specific gravity of the prepared lead paste can be reduced by 0.1g / cm3, the fillability of the lead paste has also been significantly improved, the subsequent active material porosity is increased by 7.50%~10.00%, and the initial capacity of the battery is increased by 8.21%.

[0029] An upper baffle 11 is provided at the top of the condensate water chamber 3, and a lower baffle 12 is provided at the bottom of the condensate water chamber 3. A condensate water outlet 13 for guiding out the condensate water is also provided at the upper part of the condensate water chamber 3, and a condensate water inlet 14 for guiding in the condensate water is also provided at the lower part of the condensate water chamber 3. The condensate water outlet 13 and the condensate water inlet 14 are connected to an external condensate water circulation pipeline. By setting the positions of the condensate water inlet and outlet in this scheme, the flow direction of the condensate water can be made to flow from bottom to top, so that the temperature of the condensate water at the bottom is lower, and the condensate water with a lower temperature contacts the water vapor first, which can increase the condensation speed and avoid that the water vapor does not have enough time to complete the heat exchange in the heat exchange tube 15.

[0030] The condensate water chamber 3 is provided with a heat exchange tube 15, and the heat exchange tube 15 is connected with the gas buffer chamber 4. The top of the condensate water chamber 3 is provided with an upper baffle 11, and the bottom of the condensate water chamber 3 is provided with a lower baffle 12. There are a plurality of heat exchange tubes 15, and the plurality of heat exchange tubes 15 are arranged vertically and in parallel, and the lower ends of the plurality of heat exchange tubes 15 are all aligned with the water collector. Through a plurality of heat exchange tubes 15, the heat exchange area between water vapor and condensate can be increased as much as possible in a limited space, and by setting the position of the lower end of the heat exchange tube 15, it can be ensured that the refluxed condensate falls into the water collector and does not flow back into the reaction zone of the paste mixing machine. The length of the heat exchange tube 15 needs to be long enough during design to ensure that all water vapor is condensed in the heat exchange tube 15 and does not leave the heat exchange tube 15 upward.

[0031] The upper part of the condensing water chamber 3 is also connected to an upper cover 2, and a vacuum tube interface 16 is provided on the upper cover 2, so that a vacuum chamber is formed between the upper cover 2 and the upper baffle 11. The vacuum chamber is used to generate the negative pressure environment required in the reaction process of the paste mixing machine. In the present application, the vacuum chamber is arranged above the condensing water chamber 3, and according to the above-mentioned characteristics, a sufficiently long heat exchange tube 15 is designed, so that the water vapor can be completely condensed before entering the vacuum chamber, thereby preventing the water vapor in the reaction process of the paste mixing machine from entering the vacuum structure. At the same time, the vacuum chamber can also extract the water vapor retained in the paste mixing machine, further ensuring the accuracy of the amount of water involved in the reaction.

[0032] During use, the water vapor in the paste mixing machine passes through the main airway pipe 1 upward into the gas buffer chamber 4, hits the lower side of the water collecting chamber 7, consumes its kinetic energy, and diffuses around along the lower side of the water collecting chamber 7, thereby entering the water vapor channel 8. The water vapor entering the water vapor channel 8 continues to move upward, gathers in the second buffer zone, and then flows into a plurality of heat exchange tubes 15. The water vapor in the heat exchange tubes 15 exchanges heat with the condensed water in the condensed water chamber 3 and condenses. The droplets formed after condensation fall downward into the water collecting chamber 7 under the action of gravity. The liquid entering the water collecting chamber 7 will enter the drain pipe 10 through the drain port 9 and will eventually be discharged out of the paste mixing machine.

[0033] Embodiment 2, as Figure 3 As shown, a condenser structure of a vacuum paste mixing machine includes a vacuum paste mixing machine and a condenser installed in the vacuum paste mixing machine. The condenser is arranged on the upper part of the vacuum paste mixing machine, and the two are connected through a vertically arranged main airway pipe 1.

[0034] The shell structure of the condenser includes three parts from top to bottom: an upper cover 2, a condensate water chamber 3, and a gas buffer chamber 4. The upper cover 2 is connected to the condensate water chamber 3 via a first flange 5, and the condensate water chamber 3 is connected to the gas buffer chamber 4 via a second flange 6.

[0035] The gas buffer chamber 4 is cylindrical in shape, and its interior is a hollow structure, and a water collector is provided inside. The water collector is provided with an upwardly open water collecting chamber 7, and the water collecting chamber 7 is coaxially arranged with the gas buffer chamber 4. The inner diameter of the water collecting chamber 7 is designed to be 0.5-0.9 times the inner diameter of the gas buffer chamber 4. A water vapor channel 8 is formed between the gas buffer chamber 4 and the water collector.

[0036] A first buffer zone is formed between the lower side of the water collecting chamber 7 and the bottom surface of the gas buffer chamber 4. After the water vapor entering the gas buffer chamber 4 through the main airway pipe 1 hits the lower side of the water collecting chamber 7, its kinetic energy is consumed and diffuses around along the lower side of the water collecting chamber 7, thereby entering the water vapor channel 8. A second buffer zone is formed between the upper side of the water collecting chamber 7 and the upper side of the gas buffer chamber 4. The water vapor passing through the water vapor channel 8 converges in the second buffer zone and consumes its kinetic energy again. Through the gas buffer chamber 4, the gas flow rate can be slowed down in advance, thereby ensuring that the gas has enough time to contact the condensation structure.

[0037] Different from the first embodiment, in this embodiment, there are several water vapor channels 8, and the several water vapor channels 8 are evenly distributed circumferentially between the gas buffer chamber 4 and the water collector. The multiple water vapor channels 8 can be used to divert the water vapor before contacting the condensation structure. During the diversion process, the speed of the water vapor will be further reduced, thereby avoiding passing through the condensation structure too quickly. At the same time, the setting of multiple water vapor channels 8 can also avoid the water vapor from being too concentrated on the horizontal cross section, resulting in a smaller contact surface with the condensation structure; in addition, the circumferential arrangement of the water vapor channels 8 makes the opening of a single water vapor channel 8 smaller, and the refluxed condensed water is not easy to enter the water vapor channel 8 and reflux into the reaction area of ​​the paste mixing machine.

[0038] A drain port 9 is provided at the bottom of the water collecting chamber 7, and the drain port 9 is connected to a drain pipe 10, and the outlet of the drain pipe 10 is located outside the vacuum paste mixing machine. The portion of the drain pipe 10 located inside the paste mixing machine is L-shaped, and one end thereof connected to the drain port 9 is in a vertical direction, and passes downward through the bottom surface of the gas buffer chamber 4. The drain pipe 10 should be fully sealed at the point where it passes through the gas buffer chamber 4 to prevent gas leakage. The other section of the drain pipe 10 is in a horizontal direction, and one end of the horizontal drain pipe 10 is located outside the paste mixing machine. When designing, the vertical portion of the drain pipe 10 should not be too much lower than the bottom surface of the gas buffer chamber 4 to prevent the gas to be discharged from evaporating again due to the temperature inside the paste mixing machine.

[0039] In the prior art, due to the evaporation and condensation of water during the reaction, part of the water will not be able to participate in the reaction in time. Therefore, if the water content of the formula is increased, the apparent specific gravity of the lead paste will increase. If the water content of the formula is not increased, the quality of the lead paste structure after the reaction is poor. In this application, by setting the outlet of the drain pipe 10 outside the vacuum paste machine, the water vapor generated during the reaction can be condensed and discharged from the vacuum paste machine without participating in the reaction. After calculation and experimental verification, it is concluded that the amount of water evaporated during the preparation of each pot of paste is a certain value. Based on this, as long as the amount of water evaporated in the original preparation process is increased on the basis of the amount of water added in the original formula during wet mixing, the above problem can be solved. According to experimental data verification, the apparent specific gravity of the prepared lead paste can be reduced by 0.1g / cm3, the fillability of the lead paste has also been significantly improved, the subsequent active material porosity is increased by 7.50%~10.00%, and the initial capacity of the battery is increased by 8.21%.

[0040] An upper baffle 11 is provided at the top of the condensate water chamber 3, and a lower baffle 12 is provided at the bottom of the condensate water chamber 3. A condensate water outlet 13 for guiding out the condensate water is also provided at the upper part of the condensate water chamber 3, and a condensate water inlet 14 for guiding in the condensate water is also provided at the lower part of the condensate water chamber 3. The condensate water outlet 13 and the condensate water inlet 14 are connected to an external condensate water circulation pipeline. By setting the positions of the condensate water inlet and outlet in this scheme, the flow direction of the condensate water can be made to flow from bottom to top, so that the temperature of the condensate water at the bottom is lower, and the condensate water with a lower temperature contacts the water vapor first, which can increase the condensation speed and avoid that the water vapor does not have enough time to complete the heat exchange in the heat exchange tube 15.

[0041] The condensate water chamber 3 is provided with a heat exchange tube 15, and the heat exchange tube 15 is connected with the gas buffer chamber 4. The top of the condensate water chamber 3 is provided with an upper baffle 11, and the bottom of the condensate water chamber 3 is provided with a lower baffle 12. There are a plurality of heat exchange tubes 15, and the plurality of heat exchange tubes 15 are arranged vertically and in parallel, and the lower ends of the plurality of heat exchange tubes 15 are all aligned with the water collector. Through a plurality of heat exchange tubes 15, the heat exchange area between water vapor and condensate can be increased as much as possible in a limited space, and by setting the position of the lower end of the heat exchange tube 15, it can be ensured that the refluxed condensate falls into the water collector and does not flow back into the reaction zone of the paste mixing machine. The length of the heat exchange tube 15 needs to be long enough during design to ensure that all water vapor is condensed in the heat exchange tube 15 and does not leave the heat exchange tube 15 upward.

[0042] The upper part of the condensing water chamber 3 is also connected to an upper cover 2, and a vacuum tube interface 16 is provided on the upper cover 2, so that a vacuum chamber is formed between the upper cover 2 and the upper baffle 11. The vacuum chamber is used to generate the negative pressure environment required in the reaction process of the paste mixing machine. In the present application, the vacuum chamber is arranged above the condensing water chamber 3, and according to the above-mentioned characteristics, a sufficiently long heat exchange tube 15 is designed, so that the water vapor can be completely condensed before entering the vacuum chamber, thereby preventing the water vapor in the reaction process of the paste mixing machine from entering the vacuum structure. At the same time, the vacuum chamber can also extract the water vapor retained in the paste mixing machine, further ensuring the accuracy of the amount of water involved in the reaction.

[0043] During use, the water vapor in the paste mixing machine passes through the main airway pipe 1 upward into the gas buffer chamber 4, hits the lower side of the water collecting chamber 7, consumes its kinetic energy, and diffuses around along the lower side of the water collecting chamber 7, thereby entering the water vapor channel 8. The water vapor entering the water vapor channel 8 continues to move upward, gathers in the second buffer zone, and then flows into a plurality of heat exchange tubes 15. The water vapor in the heat exchange tubes 15 exchanges heat with the condensed water in the condensed water chamber 3 and condenses. The droplets formed after condensation fall downward into the water collecting chamber 7 under the action of gravity. The liquid entering the water collecting chamber 7 will enter the drain pipe 10 through the drain port 9 and will eventually be discharged out of the paste mixing machine.

Claims

1. A condenser structure of a vacuum paste mixing machine, comprising a condenser installed in the vacuum paste mixing machine, characterized in that: The condenser includes a water collector, a drain outlet is provided in the water collector, the drain outlet is connected to a drain pipe, and the outlet of the drain pipe is located outside the vacuum paste mixing machine; it also includes a condensate water chamber, a heat exchange tube is provided in the condensate water chamber, and the lower ends of the heat exchange tubes are all aligned with the water collector.

2. The condenser structure of a vacuum paste mixing machine according to claim 1 is characterized in that: It also includes a gas buffer cavity, the water collector is located inside the gas buffer cavity, and a water vapor channel is formed between the gas buffer cavity and the water collector.

3. The condenser structure of a vacuum paste mixing machine according to claim 2 is characterized in that: The water collector is coaxially arranged with the gas buffer cavity, and there are a plurality of water vapor channels, which are evenly distributed circumferentially between the gas buffer cavity and the water collector.

4. The condenser structure of a vacuum paste mixing machine according to claim 2 is characterized in that: The upper side of the water collector is open, the drain port is arranged on the bottom surface of the water collector, and the drain pipe passes through the gas buffer chamber and is led outward.

5. A condenser structure of a vacuum paste mixing machine according to any one of claims 1 to 4, characterized in that: The heat exchange tube is communicated with the gas buffer chamber, an upper baffle is provided on the top of the condensate water chamber, and a lower baffle is provided on the bottom of the condensate water chamber.

6. The condenser structure of a vacuum paste mixing machine according to claim 5 is characterized in that: There are a plurality of heat exchange tubes, which are arranged vertically and in parallel.

7. The condenser structure of a vacuum paste mixing machine according to claim 5 is characterized in that: A condensation water inlet is provided at the lower part of the condensation water chamber, and a condensation water outlet is provided at the upper part of the condensation water chamber.

8. The condenser structure of a vacuum paste mixing machine according to claim 5 is characterized in that: An upper cover is also connected above the condensed water chamber, a vacuum tube interface is provided on the upper cover, and a vacuum chamber is formed between the upper cover and the upper baffle.

9. The condenser structure of a vacuum paste mixing machine according to claim 8, characterized in that: The upper cover is connected to the condensate water chamber via a first flange.

10. The condenser structure of a vacuum paste mixing machine according to claim 5, characterized in that: The condensed water chamber and the gas buffer chamber are connected via a second flange.

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