Vinyl chloride tail cooler deicing device
The brine circulation heater device is used to quickly dissolve the ice blockage in the vinyl chloride tail cooler, solving the problem of ice blockage in the vinyl chloride tail cooler and improving production efficiency.
Patent Information
- Application Number
- CN202422652986.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-31
AI Technical Summary
The water vapor carried by the vinyl chloride gas freezes and blocks the tail cooler, causing poor equipment operation and a long time for natural defrosting, which affects production.
A de-icing device for vinyl chloride tail cooler was designed. The brine circulation was formed by combining a brine collection tank, a delivery pump, a heater and a steam supply system. The steam in the heater was used to heat the brine to de-ice the tail cooler.
It achieves rapid ice melting, reduces equipment maintenance time and improves production efficiency.
Smart Images
Figure CN223376444U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of vinyl chloride synthesis, and in particular relates to a vinyl chloride tail cooler de-icing device. Background Art
[0002] After acetylene and hydrogen chloride react in the converter to produce vinyl chloride, it is washed with water, washed with alkali, and compressed before entering the full condenser for condensation. The uncondensed vinyl chloride gas enters the vinyl chloride tail cooler for secondary condensation and recovery. Since the vinyl chloride gas carries some water vapor and the temperature of the vinyl chloride tail cooler is controlled at around -20°C, after running for a period of time, the water vapor carried by the vinyl chloride gas will freeze in the vinyl chloride tail cooler and block the tubes. The frozen tail cooler needs to be transported out and naturally thawed by the external temperature, which takes a long time and affects production. Utility Model Content
[0003] In view of the above problems, the present invention provides a vinyl chloride tail cooler ice-melting device, which has low manufacturing cost, is easy to use and maintain, and solves the problem of long time consumption of natural ice-melting.
[0004] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is as follows:
[0005] A defrosting device for a vinyl chloride tail cooler is characterized in that it comprises a brine collecting tank, a delivery pump inlet pipe, a brine delivery pump, a delivery pump outlet pipe, a tail gas cooler, a lower liquid pipe, a heater, a steam condensate pipe, a steam pipe, and a heater lower liquid pipe. The brine collecting tank is connected to the brine delivery pump water inlet via the delivery pump inlet pipe, the brine delivery pump water outlet is connected to the tail gas cooler via the delivery pump outlet pipe, the tail gas cooler bottom outlet is connected to the lower liquid pipe, the lower liquid pipe outlet is connected to the heater top inlet, the heater is connected to a steam supply system, the steam supply system comprises a heater shell side, a steam pipe is provided at one end of the heater shell top, a steam condensate pipe is provided at one end of the heater shell bottom, a heater lower liquid pipe is provided at the other end of the heater bottom, and the heater lower liquid pipe is connected to the liquid return port at the top of the brine collecting tank.
[0006] It also includes a regulating valve, a flow meter, and a liquid level meter. The regulating valve and the flow meter are installed on the liquid outlet pipe of the delivery pump, and the liquid level meter is provided on the side of the brine collection tank.
[0007] The beneficial effects of the utility model are:
[0008] (1) When the utility model is in use, the brine collecting tank is connected to the heater through the lower liquid pipe of the heater, the vinyl chloride tail cooler is connected to the heater through the lower liquid pipe of the tail cooler, the brine collecting tank is connected to the brine delivery pump through the delivery pump inlet pipe, and the vinyl chloride tail cooler is connected to the brine delivery pump through the delivery pump outlet pipe. The brine in the brine collecting tank is pumped into the vinyl chloride tail cooler through the brine delivery pump and flows into the heater. Steam is introduced into the heater to heat the brine, and then it returns to the brine collecting tank, forming a cycle. The hot brine heats the vinyl chloride tail cooler and melts ice.
[0009] (2) The utility model controls the flow rate by observing the liquid level position of the liquid level gauge and installing a flow meter and a regulating valve on the outlet pipe of the delivery pump to prevent the brine delivery pump from running idle and the brine collection tank from being filled with liquid. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural diagram of the present utility model.
[0011] Figure numerals: brine collection tank 1, delivery pump inlet pipe 2, brine delivery pump 3, regulating valve 4, flow meter 5, delivery pump outlet pipe 6, tail gas cooler 7, material gas outlet pipe 8, material gas inlet pipe 9, tail cooler lower liquid pipe 10, heater 11, steam condensate pipe 12, steam pipe 13, liquid level meter 14, heater lower liquid pipe 15. DETAILED DESCRIPTION
[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0013] like Figure 1As shown, a vinyl chloride tail cooler de-icing device is characterized in that it includes a brine collecting tank 1, a delivery pump inlet pipe 2, a brine delivery pump 3, a delivery pump outlet pipe 6, a tail gas cooler 7, a downpipe 10, a heater 11, a steam condensate pipe 12, a steam pipe 13, and a heater downpipe 15. The brine collecting tank 1 is connected to the water inlet of the brine delivery pump 3 through the delivery pump inlet pipe 2, the water outlet of the brine delivery pump 3 is connected to the tail gas cooler 7 through the delivery pump outlet pipe 6, the bottom liquid outlet of the tail gas cooler 7 is connected to the downpipe 10, the liquid outlet of the downpipe 10 is connected to the liquid inlet at the top of the heater 11, and the heater 11 is connected to a steam supply system. The steam supply system includes a shell side of the heater 11, a steam pipe 13 is provided at one end of the top of the shell side of the heater 11, a steam condensate pipe 12 is provided at one end of the bottom of the shell side of the heater 11, a heater downpipe 15 is provided at the other end of the bottom of the heater 11, and the heater downpipe 15 is connected to the liquid return port at the top of the brine collecting tank 1.
Claims
1. A de-icing device for a vinyl chloride tail cooler, characterized by: The invention comprises a brine collecting tank (1), a delivery pump liquid inlet pipe (2), a brine delivery pump (3), a delivery pump liquid outlet pipe (6), an exhaust gas cooler (7), a lower liquid pipe (10), a heater (11), a steam condensate pipe (12), a steam pipe (13), and a heater lower liquid pipe (15), wherein the brine collecting tank (1) is connected to the water inlet of the brine delivery pump (3) through the delivery pump liquid inlet pipe (2), the water outlet of the brine delivery pump (3) is connected to the exhaust gas cooler (7) through the delivery pump liquid outlet pipe (6), and the exhaust gas cooler (7) has a bottom liquid outlet. The outlet of the lower liquid pipe (10) is connected to the liquid inlet at the top of the heater (11). The heater (11) is connected to a steam supply system, and the steam supply system includes a shell side of the heater (11). A steam pipe (13) is provided at one end of the shell side of the heater (11). A steam condensate pipe (12) is provided at one end of the shell side of the heater (11). A heater lower liquid pipe (15) is provided at the other end of the bottom of the heater (11). The heater lower liquid pipe (15) is connected to the liquid return port at the top of the brine collection tank (1).
2. The de-icing device for a vinyl chloride tail cooler according to claim 1, characterized in that: It also includes a regulating valve (4), a flow meter (5), and a liquid level meter (14). The regulating valve (4) and the flow meter (5) are installed on the liquid outlet pipe (6) of the delivery pump, and the liquid level meter (14) is provided on the side of the brine collection tank (1).