Anti-blocking vertical condenser for polyester polyol production

Abstract

This utility model relates to the technical field of vertical condensers for anti-clogging polyester polyol production, and discloses a vertical condenser for anti-clogging polyester polyol production, including a drain pipe fixedly connected to the lower outer wall of the outer casing, a gas phase feed pipe fixedly connected to the upper outer wall of the outer casing, a solenoid valve fixedly connected to the lower end face of the outer casing, a fixed plate fixedly connected to the upper end face of the outer casing, and a condensing pipe fixedly connected to the inner wall of the fixed plate. When the condensing pipe is filled with condensate, and a polyester polyol gas phase pipe is connected to the gas phase feed pipe on the outer casing, the polyester polyol gas phase undergoes heat exchange and condensation treatment inside the outer casing through the vertically arranged condensing pipe. The polyester polyol gas phase condenses into a liquid and slides down the outer wall of the condensing pipe into a storage tank below the outer casing, which can achieve efficient condensation treatment of the polyester polyol gas phase.

Description

Technical Field

[0001] This utility model relates to the technical field of vertical condensers for anti-clogging polyester polyol production, specifically to a vertical condenser for anti-clogging polyester polyol production. Background Technology

[0002] Generally speaking, polyurethane materials are a class of multi-purpose synthetic resins with diverse product forms. They are widely used in transportation, construction, machinery, electronic equipment and other fields in the form of foam plastics, elastomers, coatings, adhesives and other products. As one of the commonly used raw materials of polyurethane, polyester polyols naturally have higher requirements for their production process, quality stability and product performance.

[0003] When the polyester polyol gas phase is condensed through the outer wall of the vertically installed condenser tube, the polyester polyol gas phase will condense into liquid and slide down the outer wall of the condenser tube into the storage tank below. However, after long-term use, the outer wall of the condenser tube is prone to have un-slidable polyester polyol liquid adhering to it. This polyester polyol liquid adhering to the tube wall will form a heat insulation layer, which will hinder heat transfer and reduce heat exchange efficiency. As a result, the condenser needs to consume more electrical energy to achieve gas condensation, causing additional energy loss. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a vertical condenser for anti-clogging polyester polyol production. This condenser is designed to quickly self-clean after the polyester polyol gas phase is condensed, preventing unslipped liquid polyester polyol from adhering to the outer wall of the condenser tube and reducing the heat exchange efficiency of the next condensation.

[0005] The objective of this utility model can be achieved through the following technical solutions: A vertical condenser for anti-clogging polyester polyol production includes a support frame. A storage tank is fixedly connected to the outer wall of the support frame. A liquid outlet pipe is fixedly connected to the lower surface of the storage tank. A flange is fixedly connected to the upper surface of the storage tank. An outer casing is flanged to the upper surface of the storage tank via the flange. A drain pipe is fixedly connected to the lower outer wall of the outer casing. A gas phase feed pipe is fixedly connected to the upper outer wall of the outer casing. A solenoid valve is fixedly connected to the lower end face of the outer casing. A fixed plate is fixedly connected to the upper end face of the outer casing. A condenser pipe is fixedly connected to the inner wall of the fixed plate. A baffle is fixedly connected to the inner wall of the fixed plate. An atomizing nozzle is fixedly connected to the lower end face of the baffle. A double-chamber cap is fixedly connected to the outer wall of the baffle. A condensate inlet pipe is fixedly connected to one inner wall of the double-chamber cap, and a condensate outlet pipe is fixedly connected to the other inner wall of the double-chamber cap.

[0006] As a further embodiment of this utility model: the inner wall of the baffle and the inner wall of the fixed plate are provided with a cavity, and the outer wall of the atomizing nozzle is fixedly connected to the inner wall of the cavity.

[0007] As a further embodiment of this utility model: the lower surface of the double-cavity cap is fixedly connected to the upper end surface of the outer casing.

[0008] As a further embodiment of this utility model: the side closer to the chamber is a condensate outlet pipe, and the side farther from the chamber is a condensate inlet pipe.

[0009] The beneficial effects of this utility model are: (1) In this utility model, when the polyester polyol gas phase is to be condensed through the condenser tube, firstly, condenser water is connected to the outside through the condenser water inlet pipe. When the condenser water fills the condenser tube, the polyester polyol gas phase pipe is connected to the outside through the gas phase feed pipe on the outer casing. When the polyester polyol gas phase is condensed in the outer casing through the vertically set condenser tube, the polyester polyol gas phase will be condensed into liquid and slide down the outer wall of the condenser tube into the storage tank below the outer casing. This can achieve efficient condensation treatment of the polyester polyol gas phase.

[0010] (2) In this utility model, an atomizing nozzle is used. After the condensation of the polyester polyol in the gas phase is completed, the condensate in the condenser tube will undergo heat exchange and the water temperature will rise. At this time, through the atomizing nozzle, the condensate with the increased water temperature will be squeezed into the cavity of the baffle and the fixed plate by the normal condensate entering. Finally, it will be sprayed onto the outer wall of the condenser tube and the inner wall of the outer casing through the atomizing nozzle. The waste liquid generated will flow out from the drain pipe on the lower outer wall of the outer casing. At this time, the solenoid valve on the lower end face of the outer casing will be closed to prevent the waste liquid from flowing into the storage tank and causing pollution. It can realize the use of residual heat condensate to clean the outer wall of the condenser tube and the inner wall of the outer casing, and prevent the unslipped polyester polyol liquid from adhering to the outer wall of the condenser tube, which will reduce the heat exchange efficiency of the next condensation. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the baffle in this utility model; Figure 3 This is a schematic diagram of the internal structure of the outer casing of this utility model; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is a cross-sectional view of the storage tank in this utility model; Figure 6This is a schematic diagram of the structure of the cavity in this utility model.

[0013] In the diagram: 1. Support; 2. Storage tank; 3. Flange; 4. Drain pipe; 5. Vapor inlet pipe; 6. Condensate outlet pipe; 7. Condensate inlet pipe; 8. Outer casing; 9. Baffle; 10. Double-chamber cap; 11. Condenser pipe; 12. Solenoid valve; 13. Chamber; 14. Fixed plate; 15. Outlet pipe; 16. Atomizing nozzle. Detailed Implementation

[0014] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-6 As shown, this utility model is a vertical condenser for anti-clogging polyester polyol production, including a support 1. A storage tank 2 is fixedly connected to the outer wall of the support 1. A liquid outlet pipe 15 is fixedly connected to the lower surface of the storage tank 2. A flange 3 is fixedly connected to the upper surface of the storage tank 2. An outer casing 8 is flanged to the upper surface of the storage tank 2 through the flange 3. A drain pipe 4 is fixedly connected to the lower outer wall of the outer casing 8. A gas phase feed pipe 5 is fixedly connected to the upper outer wall of the outer casing 8. A solenoid valve 12 is fixedly connected to the lower end face of the outer casing 8. A fixing plate 14 is fixedly connected to the upper end face of the outer casing 8. A condenser pipe 11 is fixedly connected to the inner wall of the fixing plate 14.

[0016] The further advantage of the above method is that when the polyester polyol gas phase needs to be condensed, firstly, condensate is connected to the outside through the condensate inlet pipe 7. When the condensate fills the condenser pipe 11, the polyester polyol gas phase pipe is connected to the outside through the gas phase feed pipe 5 on the outer casing 8. When the polyester polyol gas phase undergoes heat exchange and condensation treatment in the outer casing 8 through the vertically set condenser pipe 11, the polyester polyol gas phase will condense into a liquid and slide down the outer wall of the condenser pipe 11 into the storage tank 2 below the outer casing 8, which can achieve efficient condensation treatment of the polyester polyol gas phase.

[0017] A baffle 9 is fixedly connected to the inner wall of the fixed plate 14. An atomizing nozzle 16 is fixedly connected to the lower end face of the baffle 9. A double-chamber cap 10 is fixedly connected to the outer wall of the baffle 9. A condensate inlet pipe 7 is fixedly connected to one inner wall of the double-chamber cap 10, and a condensate outlet pipe 6 is fixedly connected to the other inner wall of the double-chamber cap 10. A chamber 13 is formed in the inner wall of the baffle 9 and the inner wall of the fixed plate 14. The outer wall of the atomizing nozzle 16 is fixedly connected to the inner wall of the chamber 13. The lower surface of the double-chamber cap 10 is fixedly connected to the upper end face of the outer casing 8. The condensate outlet pipe 6 is on the side closer to the chamber 13, and the condensate inlet pipe 7 is on the side farther away from the chamber 13.

[0018] Furthermore: After the vapor-phase condensation of the polyester polyol is completed, the condensate in the condenser tube 11 will undergo heat exchange, thereby increasing its water temperature. At this time, through the atomizing nozzle 16, the condensate with increased water temperature will be squeezed into the chamber 13 of the baffle 9 and the fixed plate 14 by the normal condensate entering. Finally, it will be sprayed through the atomizing nozzle 16 onto the outer wall of the condenser tube 11 and the inner wall of the outer casing 8. The generated waste liquid will flow out from the drain pipe 4 on the lower outer wall of the outer casing 8. At this time, the solenoid valve 12 on the lower end face of the outer casing 8 will be closed to prevent the waste liquid from flowing into the storage tank 2 and causing pollution. This can realize the use of residual heat condensate to clean the outer wall of the condenser tube 11 and the inner wall of the outer casing 8, preventing the unslipped polyester polyol liquid from adhering to the outer wall of the condenser tube 11 and causing a decrease in the heat exchange efficiency of the next condensation.

[0019] Working principle: When condensing the polyester polyol gas phase, firstly, condensate is connected externally through the condensate inlet pipe 7. When the condensate fills the condenser pipe 11, the polyester polyol gas phase pipe is connected externally through the gas phase feed pipe 5 on the outer casing 8. The polyester polyol gas phase undergoes heat exchange and condensation within the outer casing 8 through the vertically arranged condenser pipe 11. The polyester polyol gas phase condenses into a liquid state and slides down the outer wall of the condenser pipe 11 into the storage tank 2 below the outer casing 8. This achieves efficient condensation of the polyester polyol gas phase. After the condensation of the polyester polyol gas phase is complete, the condensate in the condenser pipe 11 undergoes heat exchange, thus lowering the water temperature. As the temperature rises, the condensate water heated by the atomizing nozzle 16 is forced into the chamber 13 of the baffle 9 and the fixed plate 14 by the normal condensate water entering. Finally, it is sprayed onto the outer wall of the condenser tube 11 and the inner wall of the outer casing 8 through the atomizing nozzle 16. The waste liquid generated flows out from the drain pipe 4 on the lower outer wall of the outer casing 8. At this time, the solenoid valve 12 on the lower end face of the outer casing 8 is closed to prevent the waste liquid from flowing into the storage tank 2 and causing pollution. It can realize the use of waste heat condensate water to clean the outer wall of the condenser tube 11 and the inner wall of the outer casing 8, and prevent the unslipped polyester polyol liquid from adhering to the outer wall of the condenser tube 11, which would reduce the heat exchange efficiency of the next condensation.

Claims

1. A vertical condenser for anti-clogging polyester polyol production, characterized in that, The system includes a support (1), a storage tank (2) fixedly connected to the outer wall of the support (1), a liquid outlet pipe (15) fixedly connected to the lower surface of the storage tank (2), a flange (3) fixedly connected to the upper surface of the storage tank (2), an outer casing (8) flanged to the upper surface of the storage tank (2) via the flange (3), a drain pipe (4) fixedly connected to the lower outer wall of the outer casing (8), a gas phase feed pipe (5) fixedly connected to the upper outer wall of the outer casing (8), and a solenoid valve (1) fixedly connected to the lower end face of the outer casing (8). 2) A fixed plate (14) is fixedly connected to the upper end face of the outer casing (8). A condenser pipe (11) is fixedly connected to the inner wall of the fixed plate (14). A baffle (9) is fixedly connected to the inner wall of the fixed plate (14). An atomizing nozzle (16) is fixedly connected to the lower end face of the baffle (9). A double-chamber cap (10) is fixedly connected to the outer wall of the baffle (9). A condensate inlet pipe (7) is fixedly connected to one side of the inner wall of the double-chamber cap (10). A condensate outlet pipe (6) is fixedly connected to the other side of the inner wall of the double-chamber cap (10).

2. The vertical condenser for anti-clogging polyester polyol production according to claim 1, characterized in that, The inner wall of the baffle (9) and the inner wall of the fixed plate (14) are provided with a chamber (13), and the outer wall of the atomizing nozzle (16) is fixedly connected to the inner wall of the chamber (13).

3. A vertical condenser for anti-clogging polyester polyol production according to claim 1, characterized in that, The lower surface of the double-cavity cap (10) is fixedly connected to the upper end face of the outer casing (8).

4. A vertical condenser for anti-clogging polyester polyol production according to claim 1, characterized in that, The side closest to the chamber (13) is the condensate outlet pipe (6), and the side furthest from the chamber (13) is the condensate inlet pipe (7).

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