Hot water feeding device in production of chlorophenol resin by emulsion method

Abstract

The utility model relates to water inlet mode technical field of production chloro ether resin relates to a hot water feeding device in emulsion method chloro ether resin production, it includes hot water tank, hot water heater, steam generator, polymerization kettle, there is first hot water pipeline communication between hot water tank and hot water heater, there is steam pipeline communication between steam generator and hot water heater, there is condensed water return pipeline communication between hot water heater and steam generator, there is second hot water pipeline communication between hot water heater and polymerization kettle. The utility model is reasonable and compact in structure, convenient to use, it improves the production efficiency of emulsion method production chloro ether resin, also reduces production cost.

Description

Technical Field

[0001] This utility model relates to the technical field of water inlet methods in the production of chloroether resin, and is a hot water feeding device in the production of chloroether resin by emulsion method. Background Technology

[0002] A chemical company currently uses cold water as the feedstock for producing chloroether resin via the emulsion process. The characteristic of this cold water feedstock method is that cold pure water is first injected into the reaction equipment, and then the coil on the outer wall of the chloroether resin reaction equipment is used as a heat exchange structure to heat the cold pure water in the reaction equipment. After the water is heated to the hot water temperature required for the chloroether resin reaction, the materials and additives are added to start the polymerization reaction.

[0003] The aforementioned chloroether resin reaction equipment has a heating time of 4 to 6 hours for the cold water, which delays the feeding of other materials or additives used in the production of chloroether resin, thereby reducing the production efficiency of chloroether resin. In addition, when the chloroether resin reaction equipment is large, using coils on the outer wall of the reaction equipment to heat the cold water will create a large temperature gradient of the materials inside the reaction equipment, making it easy for materials to stick to the walls, increasing the frequency of cleaning the inner walls of the reaction equipment, and ultimately increasing the production cost of chloroether resin produced by the emulsion method.

[0004] In summary, the production method of producing chloroether resin by cold water feeding followed by heating in the emulsion process reduces production efficiency and increases production costs, which has become a pressing technical problem for enterprises to solve. Summary of the Invention

[0005] This invention provides a hot water feeding device for the production of chloroether resin using the emulsion method, which overcomes the shortcomings of the prior art and can effectively solve the problems of low production efficiency and high production cost of the existing cold water feeding method for the production of chloroether resin using the emulsion method.

[0006] The technical solution of this utility model is achieved through the following measures: a hot water feeding device for the production of emulsion-based chloroether resin, comprising a hot water tank, a hot water heater, a steam generator, and a polymerization reactor. A first hot water pipeline is fixedly connected between the lower outlet of the hot water tank and the bottom inlet of the hot water heater. A steam pipeline is fixedly connected between the upper outlet of the steam generator and the top inlet of the hot water heater. A condensate return pipeline is fixedly connected between the bottom outlet of the hot water heater and the lower inlet of the steam generator. A second hot water pipeline is fixedly connected between the top outlet of the hot water heater and the top inlet of the polymerization reactor.

[0007] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution:

[0008] The medium flow of the above-mentioned hot water heater includes a tube side and a shell side. A first hot water pipeline is fixedly connected between the lower outlet of the hot water tank and the inlet of the tube side. A steam pipeline is fixedly connected between the upper outlet of the steam generator and the inlet of the shell side. A condensate return pipeline is fixedly connected between the shell side outlet and the lower inlet of the steam generator. A second hot water pipeline is fixedly connected between the tube side outlet and the top inlet of the polymerization reactor.

[0009] A hot water delivery pump and a pressure gauge are fixedly installed sequentially along the direction of medium flow on the first hot water pipeline.

[0010] A hot water return pipeline is fixedly connected between the first hot water pipeline between the pressure gauge and the bottom inlet of the hot water heater and the upper inlet of the hot water tank.

[0011] A first hot water shut-off valve is fixedly installed on the aforementioned hot water return pipeline.

[0012] A thermometer, a flow meter, and a hot water regulating valve are fixedly installed sequentially along the direction of medium flow on the aforementioned second hot water pipeline.

[0013] A second hot water shut-off valve is fixedly installed on the second hot water pipeline between the aforementioned hot water regulating valve and the top inlet of the polymerization reactor.

[0014] A steam regulating valve is fixedly installed on the aforementioned steam pipeline.

[0015] The hot water tank is fixedly connected to a hot water input pipeline at the top inlet, and a level gauge is fixedly installed on the hot water tank.

[0016] The aforementioned device also includes a controller, a hot water delivery pump, a pressure gauge, a first hot water shut-off valve, a second hot water shut-off valve, a thermometer, a flow meter, a hot water regulating valve, a steam regulating valve, and a level gauge, all of which are connected to the controller.

[0017] This utility model has a reasonable and compact structure and is easy to use. It utilizes steam to heat hot water to the process temperature required for the polymerization reaction in the polymerization kettle before inputting the hot water into the polymerization kettle. The material temperature inside the polymerization kettle is uniform, which improves the production efficiency of chloroether resin and reduces production costs. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic diagram of the process flow of this utility model.

[0019] Appendix Figure 1The codes in the diagram are as follows: 1 for hot water tank, 2 for hot water heater, 3 for steam generator, 4 for polymerization reactor, 5 for first hot water pipeline, 6 for steam pipeline, 7 for condensate return pipeline, 8 for second hot water pipeline, 9 for hot water transfer pump, 10 for pressure gauge, 11 for hot water return pipeline, 12 for first hot water shut-off valve, 13 for thermometer, 14 for flow meter, 15 for hot water regulating valve, 16 for second hot water shut-off valve, 17 for steam regulating valve, 18 for hot water input pipeline, 19 for level gauge, 20 for tube side, and 21 for shell side. Detailed Implementation

[0020] This utility model is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of this utility model and the actual situation.

[0021] Unless otherwise specified, all equipment and devices used in this invention are existing, publicly known, and commonly used equipment and devices in the field.

[0022] In this utility model, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as the positional relationships of front, back, top, bottom, left, and right, which are based on the instructions attached. Figure 1 The orientation of the layout is determined by the direction of the map.

[0023] The present invention will be further described below with reference to the embodiments and accompanying drawings:

[0024] Example 1: As shown in the attached document Figure 1 As shown, the hot water feeding device in the emulsion process for producing chloroether resin includes a hot water tank 1, a hot water heater 2, a steam generator 3, and a polymerization reactor 4. A first hot water pipeline 5 is fixedly connected between the lower outlet of the hot water tank 1 and the bottom inlet of the hot water heater 2. A steam pipeline 6 is fixedly connected between the upper outlet of the steam generator 3 and the top inlet of the hot water heater 2. A condensate return pipeline 7 is fixedly connected between the bottom outlet of the hot water heater 2 and the lower inlet of the steam generator 3. A second hot water pipeline 8 is fixedly connected between the top outlet of the hot water heater 2 and the top inlet of the polymerization reactor 4.

[0025] The hot water feeding device in the above-mentioned emulsion method for producing chloroether resin can be further optimized and / or improved according to actual needs:

[0026] Example 2: Its difference from Example 1 is as follows: (See attached) Figure 1As shown, the medium flow of the hot water heater 2 includes a tube side 20 and a shell side 21. A first hot water pipeline 5 is fixedly connected between the lower outlet of the hot water tank 1 and the inlet of the tube side 20. A steam pipeline 6 is fixedly connected between the upper outlet of the steam generator 3 and the inlet of the shell side 21. A condensate return pipeline 7 is fixedly connected between the outlet of the shell side 21 and the lower inlet of the steam generator 3. A second hot water pipeline 8 is fixedly connected between the outlet of the tube side 20 and the top inlet of the polymerization reactor 4.

[0027] Example 3: Its difference from Examples 1 to 2 is as follows: (See attached) Figure 1 As shown, a hot water delivery pump 9 and a pressure gauge 10 are fixedly installed sequentially along the medium flow direction on the first hot water pipeline 5.

[0028] Example 4: Its difference from Examples 1 to 3 is as follows: (See attached) Figure 1 As shown, a hot water return pipeline 11 is fixedly connected between the pressure gauge 10 and the bottom inlet of the hot water heater 2, and the upper inlet of the hot water tank 1.

[0029] As needed, after the hot water feeding process of polymerization reactor 4 is completed, the residual hot water in the equipment and pipelines can be discharged back to hot water tank 1 through hot water return pipeline 11.

[0030] Example 5: It differs from Examples 1 to 4 in that, as shown in the appendix... Figure 1 As shown, a first hot water shut-off valve 12 is fixedly installed on the hot water return pipeline 11.

[0031] Example 6: Its difference from Examples 1 to 5 is as follows: (See attached) Figure 1 As shown, a thermometer 13, a flow meter 14, and a hot water regulating valve 15 are fixedly installed sequentially along the medium flow direction on the second hot water pipeline 8.

[0032] Example 7: Its difference from Examples 1 to 6 is as follows: (See attached) Figure 1 As shown, a second hot water shut-off valve 16 is fixedly installed on the second hot water pipeline 8 between the hot water regulating valve 15 and the top inlet of the polymerization reactor 4.

[0033] Example 8: It differs from Examples 1 to 7 in that: as shown in the appendix Figure 1 As shown, a steam regulating valve 17 is fixedly installed on the steam pipeline 6.

[0034] Example 9: It differs from Examples 1 to 8 in that: as shown in the appendix Figure 1 As shown, a hot water input pipeline 18 is fixedly connected to the top inlet of the hot water tank 1, and a level gauge 19 is fixedly installed on the hot water tank 1.

[0035] Example 10: It differs from Examples 1 to 9 in that, as shown in the appendix... Figure 1As shown, the device also includes a controller, a hot water delivery pump 9, a pressure gauge 10, a first hot water shut-off valve 12, a second hot water shut-off valve 16, a thermometer 13, a flow meter 14, a hot water regulating valve 15, a steam regulating valve 17, and a level gauge 19, all of which are connected to the controller.

[0036] Depending on the needs, the pipelines and equipment of the hot water feed device in the emulsion process for producing chloroether resin may also be equipped with conventional valves, thermometers, and pressure gauges known in the art. The controller is a PLC controller, which is equipped with a Yokogawa CS3000 DCS control system.

[0037] The above technical features constitute various embodiments of this utility model, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

[0038] The usage process of this utility model embodiment is as follows: First, the hot water discharged from the upstream process system enters the hot water tank 1 through the hot water input pipeline 18. The hot water delivery pump 9 transports the hot water in the hot water tank 1 to the tube side 20 of the hot water heater 2 through the first hot water pipeline 5. Next, the steam generated by the steam generator 3 enters the shell side 21 of the hot water heater 2 through the steam pipeline 6, heating the hot water in the tube side 20 to the hot water temperature required for the polymerization reaction in the polymerization reactor 4. Then, the condensate after heat exchange of the steam in the shell side 21 flows back to the steam generator 3 through the condensate return pipeline 7 for reuse. Finally, the heated hot water in the tube side 20 of the hot water heater 2 enters the polymerization reactor 4 through the second hot water pipeline 8 and is used as the hot water raw material for the polymerization reaction.

Claims

1. A hot water feeding device for the production of emulsion-based chloroether resin, characterized in that... It includes a hot water tank, a hot water heater, a steam generator, and a polymerization reactor. A first hot water pipeline is fixedly connected between the lower outlet of the hot water tank and the bottom inlet of the hot water heater. A steam pipeline is fixedly connected between the upper outlet of the steam generator and the top inlet of the hot water heater. A condensate return pipeline is fixedly connected between the bottom outlet of the hot water heater and the lower inlet of the steam generator. A second hot water pipeline is fixedly connected between the top outlet of the hot water heater and the top inlet of the polymerization reactor.

2. The hot water feeding device for emulsion-based chloroether resin production according to claim 1, characterized in that... The medium flow of the hot water heater includes the tube side and the shell side. A first hot water pipeline is fixedly connected between the lower outlet of the hot water tank and the inlet of the tube side. A steam pipeline is fixedly connected between the upper outlet of the steam generator and the inlet of the shell side. A condensate return pipeline is fixedly connected between the shell side outlet and the lower inlet of the steam generator. A second hot water pipeline is fixedly connected between the tube side outlet and the top inlet of the polymerization reactor.

3. The hot water feeding device for emulsion-based chloroether resin production according to claim 1 or 2, characterized in that... A hot water delivery pump and a pressure gauge are fixedly installed along the direction of medium flow on the first hot water pipeline.

4. The hot water feeding device for emulsion-based chloroether resin production according to claim 3, characterized in that... A hot water return pipeline is fixedly connected between the first hot water pipeline between the pressure gauge and the bottom inlet of the hot water heater and the upper inlet of the hot water tank.

5. The hot water feeding device for emulsion-based chloroether resin production according to claim 4, characterized in that... A first hot water shut-off valve is fixedly installed on the hot water return pipeline.

6. The hot water feeding device for emulsion-based chloroether resin production according to claim 1, 2, 4, or 5, characterized in that... The second hot water pipeline is equipped with a thermometer, a flow meter, and a hot water regulating valve, which are fixedly installed in sequence along the direction of medium flow.

7. The hot water feeding device for emulsion-based chloroether resin production according to claim 6, characterized in that... A second hot water shut-off valve is fixedly installed on the second hot water pipeline between the hot water regulating valve and the top inlet of the polymerization reactor.

8. The hot water feeding device for emulsion-based chloroether resin production according to claim 7, characterized in that... A steam regulating valve is fixedly installed on the steam pipeline.

9. The hot water feeding device for emulsion-based chloroether resin production according to claim 7 or 8, characterized in that... A hot water input pipeline is fixedly connected to the top inlet of the hot water tank, and a level gauge is fixedly installed on the hot water tank.

10. The hot water feeding device for emulsion-based chloroether resin production according to claim 9, characterized in that... It also includes a controller, a hot water delivery pump, a pressure gauge, a first hot water shut-off valve, a second hot water shut-off valve, a thermometer, a flow meter, a hot water regulating valve, a steam regulating valve, and a level gauge, all of which are connected to the controller.

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