Anti-freezing paraffin storage tank for chlorinated paraffin production
By adopting a vertical double-layer jacket structure and waste heat recovery technology in the paraffin storage tank, the problem of low heating efficiency of the paraffin storage tank was solved, the solidification of paraffin was prevented and energy consumption was reduced, and the stability and economy of chlorinated paraffin production were ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAOZUO THICK BASE CHEM CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-14
Smart Images
Figure CN224492261U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of chlorinated paraffin production technology, specifically relating to an anti-solidification paraffin storage tank for chlorinated paraffin production. Background Technology
[0002] Chlorinated paraffin is generally produced by adding liquid paraffin to a reactor and then introducing chlorine gas to carry out a chlorination reaction. The chlorine gas is mainly derived from the vaporization of liquid chlorine, while the liquid paraffin comes from a paraffin storage tank. However, due to paraffin's inherent property of solidifying at low temperatures, there is a risk that the paraffin in the storage tank may solidify into solid paraffin when temperatures drop in winter. This solidification would prevent the paraffin from flowing through the paraffin pipeline to the reactor, thus affecting the chlorinated paraffin preparation process. Therefore, it is necessary to add heating and insulation facilities to the paraffin storage tank to prevent the liquid paraffin from solidifying. However, existing anti-solidification devices for paraffin storage tanks suffer from low heating efficiency, poor insulation, and high energy costs, and urgently need improvement. Utility Model Content
[0003] In view of the above situation, this utility model provides an anti-solidification paraffin storage tank for chlorinated paraffin production, which can effectively improve heating efficiency and reduce energy consumption costs while preventing liquid paraffin from solidifying.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A paraffin storage tank for chlorinated paraffin production that prevents solidification includes a storage tank for storing paraffin raw materials. The top of the storage tank is provided with a feed inlet and a vent. The feed inlet is provided with a sealing cap, the vent is provided with a vent cap, and the bottom is provided with a discharge outlet.
[0006] The storage tank is a vertical double-jacketed tank. An insulation layer is installed on the outside of the hollow jacket of the storage tank, and a central coil is coaxially arranged inside the storage tank. A circulating water tank for providing circulating hot water to the central coil is located on the side of the storage tank. A heater for heating the circulating hot water is installed inside the circulating water tank, and a circulating water pump is located on the outside of the circulating water tank. The inlet of the circulating water pump extends to the bottom of the circulating water tank through an inlet pipe, and the outlet of the circulating water pump is connected to the inlet of the central coil. The outlet of the central coil is connected to the hollow jacket of the storage tank. A drain outlet is located at the bottom of the hollow jacket, and the drain outlet is connected to the return outlet at the top of the circulating water tank through a return pipe.
[0007] Furthermore, the circulating water tank is fitted with a jacket layer on the outside, and an insulation layer is provided on the outside of the jacket layer. A water inlet is also provided on the top of the circulating water tank, and an openable and closable breathing cap is provided on the water inlet.
[0008] Furthermore, the bottom of the storage tank is configured as an inclined tank bottom, the discharge port is located at the lowest point of the inclined tank bottom, and a discharge valve is provided on the discharge port.
[0009] Furthermore, a tank base is preferably provided below the inclined bottom of the storage tank, and a tank bottom coil is embedded inside the tank base. The inlet end of the tank bottom coil is connected to the hot water pipe network of the chlorinated paraffin production system, and the outlet end of the tank bottom coil is connected to the jacket layer of the circulating water tank. A drain pipe is provided at the bottom of the jacket layer and is connected to the cooling water tower of the chlorinated paraffin production system.
[0010] Furthermore, a hot water valve is installed at the inlet end of the bottom coil of the tank, a waste heat valve is installed at the outlet end of the bottom coil of the tank, and an air drain valve is installed on the drain pipe of the jacket layer.
[0011] Furthermore, an inlet valve is installed on the water inlet end of the central coil, and a drain valve is installed on the drain outlet of the hollow jacket.
[0012] Furthermore, a filter screen is installed on the inlet pipe of the circulating water pump to prevent impurities from settling at the bottom of the circulating water tank and entering the circulating water pump.
[0013] Furthermore, the heater is an electric heater, and an electrical control box is installed on the outside of the circulating water tank. Both the electric heater and the circulating water pump are electrically connected to the electrical control box.
[0014] This utility model also includes other components that enable its normal use, all of which are conventional means in the field. In addition, devices or components not limited in this utility model, such as storage tanks, sealing caps, breathing caps, breathing covers, electric heaters, circulating water pumps and various valves, all adopt existing technologies in the field.
[0015] The beneficial effects of this utility model are as follows:
[0016] The anti-solidification paraffin storage tank for chlorinated paraffin production provided by this utility model provides comprehensive heating of the paraffin raw material inside the tank from the inside, outside, and bottom by adding a central coil, a bottom coil, and an outer jacket to the storage tank. This effectively prevents the liquid paraffin from solidifying. Both the paraffin storage tank and the circulating water tank are equipped with insulation layers. Furthermore, by recovering and utilizing the waste heat from the chlorination reaction of the existing chlorinated paraffin production system, the system's circulating water cooling tower is also reduced in workload. This improves the heating efficiency of the circulating water tank and the overall utilization rate of heating energy, which helps to reduce the heating energy consumption cost of the paraffin storage tank. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the anti-solidification paraffin storage tank used in the production of chlorinated paraffin in the embodiment. Detailed Implementation
[0018] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.
[0019] It should be noted that the terms "upper," "lower," "front," "back," "inner," and "outer," which indicate direction or positional relationship, are based on the attached drawings and are used only for ease of description.
[0020] Example
[0021] like Figure 1 As shown, an anti-solidification paraffin storage tank for chlorinated paraffin production includes a storage tank 1 for storing paraffin raw materials. The top of the storage tank is provided with a feed inlet and a vent. A sealing cap 2 is provided on the feed inlet, and a vent cap 3 is installed on the vent. A discharge port is provided at the bottom. The bottom of the storage tank is provided with an inclined tank bottom 4. The discharge port is located at the lowest point of the inclined tank bottom, and a discharge valve 5 is provided on the discharge port.
[0022] The storage tank is a vertical double-layered jacketed tank. The hollow jacket 6 of the storage tank is provided with a heat insulation cotton layer 7 on the outside. A central coil 8 is coaxially arranged inside the storage tank. A water inlet valve 9 is installed on the water inlet end of the central coil. A drain valve 10 is installed on the drain outlet of the hollow jacket.
[0023] A circulating water tank 11 for supplying circulating hot water to the central coil is provided on the side of the storage tank. An electric heater 12 for heating the circulating hot water is installed inside the circulating water tank. A circulating water pump 13 is installed outside the circulating water tank, and a filter screen 14 is installed on the inlet pipe of the circulating water pump. An electrical control box 15 is installed outside the circulating water tank. Both the electric heater and the circulating water pump are electrically connected to the electrical control box. The electrical control box and its internal circuitry use existing technology and will not be described in detail here.
[0024] The inlet of the circulating water pump extends to the bottom of the circulating water tank through the inlet pipe 16, and the outlet of the circulating water pump is connected to the inlet end of the central coil. The outlet end of the central coil is connected to the hollow jacket of the storage tank. The bottom of the hollow jacket is provided with a drain outlet, and the drain outlet is connected to the return outlet at the top of the circulating water tank through the return pipe 17.
[0025] The circulating water tank is fitted with a jacket layer 18 on the outside, and an insulation layer 19 is provided on the outside of the jacket layer. A water inlet is also provided on the top of the circulating water tank, and an openable and closable breathing cover 20 is provided on the water inlet.
[0026] A reinforced concrete tank base is installed below the inclined bottom of the storage tank, providing reliable load-bearing support for the entire tank. A bottom coil 21 is embedded inside the tank base for auxiliary heating. The inlet end of the bottom coil is connected to the hot water network of the chlorinated paraffin production system (not shown in the figure), and the outlet end is connected to the jacket layer of the circulating water tank. A drain pipe is installed at the bottom of the jacket layer. A hot water valve 22 is installed at the inlet end of the bottom coil, and a waste heat valve 23 is installed at the outlet end. An evacuation valve 24 is installed on the drain pipe of the jacket layer, and the drain pipe is connected to the cooling tower of the chlorinated paraffin production system (not shown in the figure). The hot water network and cooling tower of the chlorinated paraffin production system utilize existing technology and will not be described in detail here.
[0027] The technical solution of this utility model is not limited to the specific embodiments described above. Without departing from the scope and spirit of the described embodiments, many modifications and changes will be obvious to those skilled in the art. Any technical modifications made within the spirit and principles of this utility model shall fall within the protection scope of this utility model.
Claims
1. A paraffin storage tank for chlorinated paraffin production that prevents solidification, comprising a storage tank for storing paraffin raw materials, wherein the top of the storage tank is provided with a feed inlet and a vent, the feed inlet is provided with a sealing cap, the vent is provided with a breather cap, and the bottom is provided with a discharge outlet, characterized in that: The storage tank is a vertical double-jacketed tank. An insulation layer is installed on the outside of the hollow jacket of the storage tank, and a central coil is coaxially arranged inside the storage tank. A circulating water tank for providing circulating hot water to the central coil is located on the side of the storage tank. A heater for heating the circulating hot water is installed inside the circulating water tank, and a circulating water pump is located on the outside of the circulating water tank. The inlet of the circulating water pump extends to the bottom of the circulating water tank through an inlet pipe, and the outlet of the circulating water pump is connected to the inlet of the central coil. The outlet of the central coil is connected to the hollow jacket of the storage tank. A drain outlet is located at the bottom of the hollow jacket, and the drain outlet is connected to the return outlet at the top of the circulating water tank through a return pipe.
2. The anti-solidification paraffin storage tank for chlorinated paraffin production according to claim 1, characterized in that: The circulating water tank is fitted with a jacket layer on the outside, and an insulation layer is provided on the outside of the jacket layer. A water inlet is also provided on the top of the circulating water tank, and an openable and closable breather cover is provided on the water inlet.
3. The anti-solidification paraffin storage tank for chlorinated paraffin production according to claim 2, characterized in that: The bottom of the storage tank is set as an inclined tank bottom, the discharge port is set at the lowest point of the inclined tank bottom, and a discharge valve is provided on the discharge port.
4. The anti-solidification paraffin storage tank for chlorinated paraffin production according to claim 3, characterized in that: Below the inclined bottom of the storage tank, a tank bottom coil is also provided. The inlet end of the tank bottom coil is connected to the hot water pipe network of the chlorinated paraffin production system, and the outlet end of the tank bottom coil is connected to the jacket layer of the circulating water tank. A drain pipe is provided at the bottom of the jacket layer and is connected to the cooling water tower of the chlorinated paraffin production system.
5. The anti-solidification paraffin storage tank for chlorinated paraffin production according to claim 1, characterized in that: The heater is an electric heater, and an electrical control box is installed on the outside of the circulating water tank. Both the electric heater and the circulating water pump are electrically connected to the electrical control box.