Equipment for reducing freezing condition of gas phase supplementing and separating opening in winter
By using stainless steel heat exchangers and gas-liquid separators in the gas phase equipment, combined with chilled water treatment, the problem of freezing in the gas phase equipment during winter was solved, enabling normal operation of the equipment and resource conservation.
Patent Information
- Application Number
- CN202520368079.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-04
AI Technical Summary
In the existing technology, the connection of the water vapor pipeline to the gas phase explosion tank at the air inlet of the gas phase equipment results in excessively high water vapor content, which freezes when the ambient temperature is low in winter, affecting the operation of the equipment and easily causing blockages. Furthermore, insulation measures are difficult to effectively solve the problem.
A stainless steel heat exchanger is used to cool and condense non-condensable gases. Combined with a gas-liquid separator and a solvent tank, the stainless steel heat exchanger is treated with chilled water to reduce the water vapor content of the gas and prevent freezing.
It effectively reduces icing at the gas phase replenishment port, ensures normal equipment operation, reduces the difficulty of de-icing, and saves resources.
Smart Images
Figure CN223939221U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of eliminating water vapor condensation at the gas phase air inlet, specifically a device to reduce icing at the gas phase air inlet in winter. Background Technology
[0002] Currently, the gas-phase equipment uses a water vapor pipeline connected to the gas-phase explosion tank at the air inlet to recover dichloromethane from the explosion tank. This results in excessively high water vapor content from the explosion tank to the inlet of the primary blower. In winter, when the ambient temperature is too low, the water vapor will freeze, affecting the normal operation of the equipment and easily causing blockage at the air inlet. To solve these problems, insulation measures are usually taken for the primary blower's air inlet box. However, due to the extremely low ambient temperature in winter, it is still impossible to completely eliminate icing, and de-icing by personnel is difficult. Therefore, a device to reduce icing at the gas-phase air inlet in winter is proposed. Utility Model Content
[0003] The purpose of this invention is to provide a device to reduce icing at the gas phase air inlet in winter. This addresses the problem mentioned in the background section where the gas phase equipment currently in use connects to a water vapor pipeline in a gas phase explosion tank to recover dichloromethane from the explosion tank. This results in excessively high water vapor content from the explosion tank to the inlet of the primary fan. In low winter temperatures, this water vapor freezes, affecting the normal operation of the equipment and easily causing blockages at the air inlet. To solve these problems, insulation measures are typically used for the primary fan inlet box. However, due to the extremely low winter temperatures, icing still cannot be eliminated, and de-icing by personnel is difficult.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a device for reducing icing at the gas phase replenishment port in winter, comprising an aeration tank, wherein the aeration tank is connected to a stainless steel heat exchanger via a pipe, one end of the stainless steel heat exchanger is connected to a gas-liquid separator via a pipe, the gas-liquid separator is connected to a gas mixing box via a pipe, the other end of the gas-liquid separator is connected to a solvent tank via a pipe, and the drain end of the stainless steel heat exchanger is connected to the solvent tank via a pipe.
[0005] Preferably, the stainless steel heat exchanger is equipped with a first temperature sensor, and the inlet of the stainless steel heat exchanger is connected to a second valve via a pipe. The end of the second valve away from the stainless steel heat exchanger is connected to a chilled water inlet via a pipe.
[0006] Preferably, the outlet of the stainless steel heat exchanger is equipped with a third valve via a pipe, and the end of the third valve away from the stainless steel heat exchanger is connected to the chilled water return end via a pipe.
[0007] Preferably, the stainless steel heat exchanger and gas-liquid separator described above are equipped with sight glasses on the pipes connecting them to the solvent tank.
[0008] Preferably, a second temperature sensor is connected between the stainless steel heat exchanger and the third valve via a pipe.
[0009] Preferably, a first valve is connected between the sight glass and the solvent tank via a pipe.
[0010] Preferably, a sampling port is provided on the connecting pipe between the aeration tank and the stainless steel heat exchanger.
[0011] Compared with the prior art, the present invention has the following technical effects by introducing non-condensable gas into the interior of a stainless steel heat exchanger. The stainless steel heat exchanger can cool and condense the non-condensable gas, reducing the temperature of the non-condensable gas from about 45°C to below 18°C. This removes a large amount of water vapor from the non-condensable gas. Furthermore, the gas-liquid separation by the gas-liquid separator can greatly alleviate the icing situation at the gas mixing box of the gas phase equipment, ensuring the normal operation of the equipment. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the system of this utility model.
[0014] Explanation of reference numerals in the attached drawings: 1. Aeration tank; 2. Sampling port; 3. Stainless steel heat exchanger; 4. First temperature sensor; 5. Gas-liquid separator; 6. Gas mixing box; 7. Solvent tank; 8. Sight glass; 9. First valve; 10. Second valve; 11. Chilled water inlet; 12. Third valve; 13. Second temperature sensor; 14. Chilled water return. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.
[0017] Example
[0018] In existing technologies, the gas-phase equipment currently used connects to a water vapor pipeline at the air inlet of a gas-phase explosion tank to recover dichloromethane from the explosion tank. This results in excessively high water vapor content from the explosion tank to the inlet of the primary fan. In winter, when the ambient temperature is too low, the water vapor will freeze, affecting the normal operation of the equipment and easily causing blockages at the air inlet. To solve these problems, insulation measures are usually used for the primary fan inlet box. However, due to the extremely low ambient temperature in winter, it is still impossible to eliminate icing, and de-icing by personnel is difficult.
[0019] Please see Figure 1 This utility model provides a technical solution: a device for reducing icing at the gas phase filler inlet in winter, comprising an aeration tank 1, a stainless steel heat exchanger 3 connected to the aeration tank 1 via a pipe, a gas-liquid separator 5 connected to one end of the stainless steel heat exchanger 3 via a pipe, a gas mixing box 6 connected to the gas-liquid separator 5 via a pipe, and a solvent tank 7 connected to the other end of the gas-liquid separator 5 via a pipe. The drain end of the stainless steel heat exchanger 3 is connected to the solvent tank 7 via a pipe. Non-condensable gas in the aeration tank 1 enters the interior of the stainless steel heat exchanger 3 via a pipe, and the stainless steel heat exchanger 3 can cool and condense the non-condensable gas. At this time, the non-condensable gas cooled and condensed by the stainless steel heat exchanger 3 enters the interior of the gas-liquid separator 5 via a pipe, and the low-temperature liquid mixture enters the interior of the solvent tank 7 via a pipe, thereby recovering the low-temperature liquid mixture. At this time, the non-condensable gas inside the gas-liquid separator 5 enters the interior of the gas mixing box 6 via a pipe, and at the same time, the mixture in the gas-liquid separator 5 enters the interior of the solvent tank 7 via a pipe, for the recovery of the mixture.
[0020] To achieve resource conservation, a first temperature sensor 4 is installed on the stainless steel heat exchanger 3. A second valve 10 is installed at the inlet of the stainless steel heat exchanger 3 via a pipe. The end of the second valve 10 furthest from the stainless steel heat exchanger 3 is connected to a chilled water inlet 11 via a pipe. A third valve 12 is installed at the outlet of the stainless steel heat exchanger 3 via a pipe. The end of the third valve 12 furthest from the stainless steel heat exchanger 3 is connected to a chilled water return 14 via a pipe. 0.3 MPa, 7°C chilled water is used as the refrigerant, and the refrigerant flow rate is 6 m³ / s. 3 / h, the refrigerant enters the interior of the stainless steel heat exchanger 3 through the chilled water inlet 11, cooling the gas inside the stainless steel heat exchanger 3 and causing a large amount of water vapor in the gas to condense into liquid. Then, the refrigerant flows to the chilled water return end 14 through the second temperature sensor 13 and the third valve 12. At the same time, by installing the first temperature sensor 4 at the drain end of the stainless steel heat exchanger 3, the temperature at the drain end can be measured, and the opening of the second valve 10 can be adjusted according to the temperature at the drain end to save chilled water. The gas after water removal enters the gas mixing box 6 to enter the gas phase equipment for recycling treatment.
[0021] Sight glass 8 is installed on the pipe connecting the stainless steel heat exchanger 3 and the gas-liquid separator 5 to the solvent tank 7. The sight glass 8 is used to observe whether there is liquid flowing down the pipe and the state of the liquid. A second temperature sensor 13 is connected to the stainless steel heat exchanger 3 and the third valve 12 through a pipe. The second temperature sensor 13 is used to monitor the temperature in the return water pipe. A first valve 9 is connected to the sight glass 8 and the solvent tank 7 through a pipe. A sampling port 2 is installed on the connecting pipe between the aeration tank 1 and the stainless steel heat exchanger 3. The sampling port 2 is used to sample the non-condensable gas introduced into the stainless steel heat exchanger 3.
[0022] Working principle or structural principle: During use, the non-condensable gas in the aeration tank 1 enters the interior of the stainless steel heat exchanger 3 through the pipe. The stainless steel heat exchanger 3 can cool and condense the non-condensable gas. At this time, the non-condensable gas after being cooled and condensed by the stainless steel heat exchanger 3 enters the interior of the gas-liquid separator 5 through the pipe. The low-temperature liquid mixture enters the interior of the solvent tank 7 through the pipe, thereby recovering the low-temperature liquid mixture. At this time, the non-condensable gas inside the gas-liquid separator 5 enters the interior of the gas mixing box 6 through the pipe. At the same time, the mixture in the gas-liquid separator 5 enters the interior of the solvent tank 7 through the pipe, and the mixture is recovered.
[0023] During the dehumidification process of the stainless steel heat exchanger 3, 0.3 MPa, 7°C chilled water is used as the refrigerant. It enters the interior of the stainless steel heat exchanger 3 through the chilled water inlet 11 to cool the gas inside the stainless steel heat exchanger 3, causing a large amount of water vapor in the gas to condense into liquid. Then, the refrigerant flows to the chilled water return end 14 through the second temperature sensor 13 and the third valve 12. At the same time, by installing the first temperature sensor 4 at the drain end of the stainless steel heat exchanger 3, the temperature at the drain end can be measured, and the opening of the second valve 10 can be adjusted according to the temperature at the drain end to save chilled water and achieve the effect of saving resources.
[0024] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.
Claims
1. A device for reducing icing at the gas phase replenishment port in winter, comprising an aeration tank (1), characterized in that: The aeration tank (1) is connected to a stainless steel heat exchanger (3) via a pipe. One end of the stainless steel heat exchanger (3) is connected to a gas-liquid separator (5) via a pipe. The gas-liquid separator (5) is connected to a gas mixing box (6) via a pipe. The other end of the gas-liquid separator (5) is connected to a solvent tank (7) via a pipe. The drain end of the stainless steel heat exchanger (3) is connected to the solvent tank (7) via a pipe.
2. The device for reducing icing at the vapor phase replenishment port in winter according to claim 1, characterized in that: The stainless steel heat exchanger (3) is equipped with a first temperature sensor (4), and the inlet of the stainless steel heat exchanger (3) is connected to a second valve (10) via a pipe. The end of the second valve (10) away from the stainless steel heat exchanger (3) is connected to a chilled water inlet (11) via a pipe.
3. The device for reducing icing at the vapor phase replenishment port in winter according to claim 1, characterized in that: The outlet of the stainless steel heat exchanger (3) is equipped with a third valve (12) through a pipe, and the end of the third valve (12) away from the stainless steel heat exchanger (3) is connected to the chilled water return end (14) through a pipe.
4. The device for reducing icing at the vapor phase replenishment port in winter according to claim 1, characterized in that: Sight glasses (8) are installed on the pipes connecting the stainless steel heat exchanger (3) and the gas-liquid separator (5) to the solvent tank (7).
5. The device for reducing icing at the vapor phase replenishment port in winter according to claim 3, characterized in that: A second temperature sensor (13) is connected to the stainless steel heat exchanger (3) and the third valve (12) via a pipe.
6. The device for reducing icing at the vapor phase replenishment port in winter according to claim 4, characterized in that: A first valve (9) is connected to the sight glass (8) and the solvent tank (7) via a pipe.
7. The device for reducing icing at the vapor phase replenishment port in winter according to claim 1, characterized in that: A sampling port (2) is provided on the connecting pipe between the aeration tank (1) and the stainless steel heat exchanger (3).