Condensation recovery device for polymerization reaction

Abstract

The utility model discloses a condensation recovery device for polymerization reaction, relates to the technical field of polymerization reaction, and provides the following scheme aiming at the problems of low recovery efficiency, incapability of supplementing water to the interior of a reaction kettle in time and low practicability caused by the fact that water drops are attached to the inner wall of a guide pipe and drop into the reaction kettle along the inner wall of the guide pipe in the background technology. Comprising a cooling box arranged on one side of a polymerization reaction kettle, a box cover is connected to the outer wall of the top of the cooling box through bolts, and a condensation mechanism is arranged on one side of the polymerization reaction kettle; the condensation mechanism comprises an input pipe, a distribution cylinder fixedly arranged on the outer wall of the bottom end of the input pipe, a plurality of capillary condensation pipes fixedly arranged on the inner wall of the bottom of the distribution cylinder and a guide cylinder. According to the utility model, water vapor in the polymerization reaction kettle can be fully recovered, condensate water can be prevented from flowing back into the reaction kettle, the condensation efficiency is improved, warm water can be conveyed into the reaction kettle in time, water shortage in the reaction kettle is prevented, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polymerization reaction, in particular to a condensation recovery device for polymerization reaction. Background Art

[0002] The reaction in which small molecular olefins or substituted olefin derivatives are combined into high molecular compounds through addition reactions under heating and catalyst action is called addition polymerization. During the addition polymerization process, the water vapor inside the reactor needs to be recovered.

[0003] After searching, a Chinese patent (application number is "202021400904.0") discloses "a condensation reflux device for polymerization reactor materials". The above device includes a reactor, a condenser, an overflow tank, a thermostat and a conduit; the top exhaust port of the reactor is connected to the air inlet of the condenser through the conduit, the liquid outlet of the condenser is connected to the liquid inlet of the overflow tank through the conduit, the liquid outlet in the middle of the overflow tank is connected to the liquid inlet of the thermostat through the conduit, and the liquid outlet of the thermostat is connected to the liquid inlet of the reactor through the conduit. However, during the use of the above device, the following problems exist:

[0004] 1. When the water vapor generated during the polymerization reaction is transported, the water vapor is liquefied in the conduit, and water droplets adhere to the inner wall of the conduit and drip into the reactor along the inner wall of the conduit, resulting in low recovery efficiency;

[0005] 2. When replenishing water inside the reactor, the liquid level in the overflow tank needs to be above the overflow port, so it is impossible to replenish water inside the reactor in time, which has low practicality. Utility Model Content

[0006] The utility model provides a condensation recovery device for polymerization reaction, which solves the problems that water droplets adhere to the inner wall of the conduit and drip into the reactor along the inner wall of the conduit, the recovery efficiency is low, the water inside the reactor cannot be replenished in time, and the practicality is low.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A condensation recovery device for polymerization reaction, comprising a cooling box arranged at one side of a polymerization reactor, a box cover being connected to the outer wall of the top of the cooling box by bolts, a condensation mechanism being arranged at one side of the polymerization reactor, the condensation mechanism comprising an inlet pipe, a distribution cylinder fixedly arranged on the outer wall of the bottom end of the inlet pipe, a plurality of capillary condensation tubes fixedly arranged on the inner wall of the bottom of the distribution cylinder, and a guide cylinder fixedly arranged on the outer wall of the lower part of the plurality of capillary condensation tubes, a cooling mechanism being arranged outside the guide cylinder, the cooling mechanism comprising a mounting cylinder screwed on the outer wall of the guide cylinder, a water inlet pipe having one end passing through and fixedly arranged on the upper inner wall of one side of the mounting cylinder, a first submersible pump arranged inside the cooling box, and a water outlet pipe fixedly arranged on the inner wall of the lower part of one side of the mounting cylinder, a reflux mechanism being arranged at one side of the cooling box, the reflux mechanism comprising a second submersible pump arranged inside the cooling box, a heating cylinder, a reflux pipe fixedly arranged on the inner wall of the top of the heating cylinder, a lower filter plate connected to the inner wall of the lower part of the heating cylinder by bolts, and a plurality of ceramic heating rods respectively connected to the outer wall of the top of the lower filter plate by bolts.

[0009] Preferably, a water pipe is fixedly provided on the upper inner wall of one side of the cooling box, and a ball valve is installed on the outer wall of one end of the water pipe.

[0010] Preferably, an output pipe is fixedly provided on the inner wall of the bottom of the guide tube, and the lower part of the output pipe is fixedly provided on the outer wall of the bottom of the box cover.

[0011] Preferably, a connecting pipe is fixedly provided on the inner wall of one side of the top of the polymerization reactor, and one end of the input pipe is connected to the outer wall of one end of the connecting pipe through a flange.

[0012] Preferably, the upper portion of the mounting tube is threadedly connected to the outer wall of the distribution pipe, a connecting hose is fixedly provided on the lower outer wall of the water inlet pipe, and one end of the connecting hose is fixedly provided on the outer wall of the water outlet end of the first submersible pump, and the bottom end of the water outlet pipe passes through and is fixedly provided on the outer wall of the bottom of the box cover.

[0013] Through the above scheme, the water vapor in the polymerization reactor is transported to the distribution cylinder through the connecting pipe, and then the water vapor enters into multiple capillary condensers. The first submersible pump transports the cold water in the cooling box into the installation cylinder. The cold water cools the capillary condenser, so that the water vapor in the capillary condenser is timely and fully liquefied, and the condensed water enters the guide cylinder and then into the cooling box.

[0014] Preferably, a delivery pipe is fixedly provided on the outer wall of the water outlet end of the second submersible pump, and a heating cylinder is fixedly provided on the upper outer wall of the delivery pipe, one end of the reflux pipe is fixedly provided on the upper inner wall of one side of the polymerization reactor, an upper filter plate is provided in a sliding sleeve inside the heating cylinder, and the upper filter plates are respectively connected to the outer walls of the top ends of several ceramic heating rods by bolts.

[0015] Through the above scheme, part of the cold water in the cooling box is transported into the heating cylinder through the second submersible pump, so that the cold water fills the heating cylinder, the second submersible pump is turned off, and multiple ceramic heating rods are operated to heat the cold water in the heating cylinder. Then the second submersible pump transports the cold water into the heating cylinder, mixes it with hot water and transports the hot water into the polymerization reactor.

[0016] Preferably, the first submersible pump and the second submersible pump are respectively connected to a switch via a wire, and the switch is connected to a power line.

[0017] The beneficial effects of the utility model are:

[0018] 1. A condensation mechanism and a cooling mechanism are provided. The water vapor in the polymerization reactor is transported to the distribution cylinder through a connecting pipe, and then the water vapor enters into a plurality of capillary condensers. The first submersible pump transports the cold water in the cooling box into the installation cylinder. The cold water cools the capillary condensers, so that the water vapor in the capillary condensers is timely and fully liquefied. The condensed water enters the guide cylinder and then the cooling box, so that the water vapor in the polymerization reactor can be fully recovered, and the condensed water can be prevented from flowing back into the reactor, thereby improving the condensation efficiency.

[0019] 2. A reflux mechanism is provided. The second submersible pump conveys part of the cold water in the cooling box into the heating cylinder, so that the cold water fills the heating cylinder. The second submersible pump is closed, and multiple ceramic heating rods are operated to heat the cold water in the heating cylinder. Then the second submersible pump conveys the cold water into the heating cylinder, mixes it with hot water and conveys the hot water into the polymerization reactor. Warm water can be conveyed into the reactor in time to prevent water shortage inside the reactor, thereby improving practicality.

[0020] In summary, the utility model can fully recover the water vapor in the polymerization reactor, can prevent the condensed water from flowing back into the reactor, thereby improving the condensation efficiency, can timely transport warm water into the reactor, prevent the lack of water inside the reactor, and improve the practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main three-dimensional structure of a condensation recovery device for a polymerization reaction proposed by the utility model.

[0022] Figure 2 This is a schematic diagram of the cooling box and box cover structure of a condensation recovery device for a polymerization reaction proposed by the utility model.

[0023] Figure 3 The utility model discloses a condensation mechanism structure schematic diagram of a condensation recovery device for a polymerization reaction.

[0024] Figure 4 The utility model provides a schematic diagram of the cooling mechanism structure of a condensation recovery device for a polymerization reaction.

[0025] Figure 5 The utility model provides a cross-sectional structural diagram of a reflux mechanism of a condensation recovery device for a polymerization reaction.

[0026] In the figure: 1. polymerization reactor; 2. cooling box; 3. box cover; 4. condensation mechanism; 401. input pipe; 402. distribution cylinder; 403. capillary condenser; 404. guide cylinder; 405. output pipe; 5. connecting pipe; 6. cooling mechanism; 601. installation cylinder; 602. water inlet pipe; 603. connecting hose; 604. first submersible pump; 605. water outlet pipe; 7. reflux mechanism; 701. second submersible pump; 702. delivery pipe; 703. heating cylinder; 704. reflux pipe; 705. lower filter plate; 706. ceramic heating rod; 707. upper filter plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Example 1, reference Figure 1-4 A condensation recovery device for polymerization reaction, comprising a cooling box 2 arranged on one side of a polymerization reactor 1, a water delivery pipe is fixedly arranged on the upper inner wall of one side of the cooling box 1, a ball valve is installed on the outer wall of one end of the water delivery pipe, a box cover 3 is connected to the outer wall of the top of the cooling box 2 by bolts, a condensation mechanism 4 is arranged on one side of the polymerization reactor 1, the condensation mechanism 4 comprises an input pipe 401, a distribution cylinder 402 fixedly arranged on the outer wall of the bottom end of the input pipe 401, a plurality of capillary condensation tubes 403 fixedly arranged on the inner wall of the bottom of the distribution cylinder 402, and a guide cylinder 404 fixedly arranged on the outer wall of the lower part of the plurality of capillary condensation tubes 403, the capillary condensation tube 403 is made of brass, which is convenient for heat exchange with the cold water in the installation cylinder, an output pipe 405 is fixedly arranged on the inner wall of the bottom of the guide cylinder 404, and the lower part of the output pipe 405 is fixedly arranged on the bottom of the box cover 3 On the outer wall of the top side of the polymerization reactor 1, a connecting pipe 5 is fixedly provided on the inner wall of one side of the top, one end of the input pipe 401 is connected to the outer wall of one end of the connecting pipe 5 through a flange, and a cooling mechanism 6 is provided on the outside of the guide cylinder 404. The cooling mechanism 6 includes a mounting cylinder 601 screwed on the outer wall of the guide cylinder 404, an inlet pipe 602 with one end penetrating through and fixedly provided on the upper inner wall of one side of the mounting cylinder 601, a first submersible pump 604 arranged inside the cooling box 1, and a water outlet pipe 605 fixedly provided on the lower inner wall of one side of the mounting cylinder 601. The upper part of the mounting cylinder 601 is screwed on the outer wall of the distribution pipe 402, a connecting hose 603 is fixedly provided on the lower outer wall of the water inlet pipe 602, one end of the connecting hose 603 is fixedly provided on the outer wall of the water outlet end of the first submersible pump 604, and the bottom end of the water outlet pipe 605 penetrates and is fixedly provided on the outer wall of the bottom of the box cover 3.

[0029] Example 2, reference Figure 5 A condensation recovery device for a polymerization reaction also includes a reflux mechanism 7, which includes a second submersible pump 701 arranged in a cooling box 1, a heating cylinder 703, a reflux pipe 704 fixedly arranged on the top inner wall of the heating cylinder 703, a lower filter plate 705 connected to the lower inner wall of the heating cylinder 703 by bolts, and a plurality of ceramic heating rods 706 respectively connected to the top outer wall of the lower filter plate 705 by bolts, a delivery pipe 702 is fixedly arranged on the outer wall of the upper part of the delivery pipe 702, one end of the reflux pipe 704 is fixedly arranged on the upper inner wall of one side of the polymerization reactor 1, an upper filter plate 707 is slidingly sleeved in the heating cylinder 703, and the upper filter plate 707 is respectively connected to the top outer walls of the plurality of ceramic heating rods 706 by bolts.

[0030] Working principle: The water vapor in the polymerization reactor 1 is transported to the distribution cylinder 402 through the connecting pipe 5, and then the water vapor enters into multiple capillary condensers 403. The first submersible pump 604 transports the cold water in the cooling box 2 into the installation cylinder 703. The cold water cools the capillary condenser 403, so that the water vapor in the capillary condenser 403 is timely and fully liquefied. The condensed water enters the guide cylinder 404 and then into the cooling box 2. The second submersible pump 701 transports part of the cold water in the cooling box 2 into the heating cylinder 703, so that the cold water fills the heating cylinder 703. The second submersible pump 701 is turned off, and multiple ceramic heating rods 706 are operated to heat the cold water in the heating cylinder 703. Then the second submersible pump 701 transports the cold water into the heating cylinder 703, mixes it with hot water and transports the hot water into the polymerization reactor 1.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A condensation recovery device for a polymerization reaction, comprising a cooling box (2) arranged on one side of a polymerization reactor (1), characterized in that: A box cover (3) is connected to the top outer wall of the cooling box (2) via bolts; A condensation mechanism (4) is provided on one side of the polymerization reactor (1), and the condensation mechanism (4) comprises an inlet pipe (401), a distribution tube (402) fixedly arranged on the outer wall of the bottom end of the inlet pipe (401), a plurality of capillary condensation tubes (403) fixedly arranged on the inner wall of the bottom of the distribution tube (402), and a guide tube (404) fixedly arranged on the outer wall of the lower part of the plurality of capillary condensation tubes (403); The guide tube (404) is provided with a cooling mechanism (6) outside, and the cooling mechanism (6) comprises a mounting tube (601) screwed on the outer wall of the guide tube (404), a water inlet pipe (602) with one end passing through and fixedly arranged on the upper inner wall of one side of the mounting tube (601), a first submersible pump (604) arranged inside the cooling box (2), and a water outlet pipe (605) fixedly arranged on the lower inner wall of one side of the mounting tube (601); A reflux mechanism (7) is provided on one side of the cooling box (2), and the reflux mechanism (7) comprises a second submersible pump (701) arranged in the cooling box (2), a heating tube (703), a reflux pipe (704) fixedly arranged on the top inner wall of the heating tube (703), a lower filter plate (705) connected to the lower inner wall of the heating tube (703) by bolts, and a plurality of ceramic heating rods (706) respectively connected to the top outer wall of the lower filter plate (705) by bolts.

2. A condensation recovery device for polymerization reaction according to claim 1, characterized in that: A water delivery pipe is fixedly arranged on the upper inner wall of one side of the cooling box (2), and a ball valve is installed on the outer wall of one end of the water delivery pipe.

3. A condensation recovery device for polymerization reaction according to claim 1, characterized in that: An output pipe (405) is fixedly arranged on the inner wall of the bottom of the guide tube (404), and the lower part of the output pipe (405) is fixedly arranged on the outer wall of the bottom of the box cover (3).

4. A condensation recovery device for polymerization reaction according to claim 1, characterized in that: A connecting pipe (5) is fixedly provided on the inner wall of one side of the top of the polymerization reactor (1), and one end of the input pipe (401) is connected to the outer wall of one end of the connecting pipe (5) through a flange.

5. The condensation recovery device for polymerization reaction according to claim 1, characterized in that: The upper portion of the installation tube (601) is screwed onto the outer wall of the distribution tube (402); a connecting hose (603) is fixedly provided on the lower outer wall of the water inlet pipe (602); one end of the connecting hose (603) is fixedly provided on the outer wall of the water outlet end of the first submersible pump (604); and the lower end of the water outlet pipe (605) passes through and is fixedly provided on the bottom outer wall of the box cover (3).

6. A condensation recovery device for polymerization reaction according to claim 1, characterized in that: A delivery pipe (702) is fixedly provided on the outer wall of the water outlet end of the second submersible pump (701), and a heating tube (703) is fixedly provided on the upper outer wall of the delivery pipe (702). One end of the reflux pipe (704) is fixedly provided on the upper inner wall of one side of the polymerization reactor (1). An upper filter plate (707) is provided in a sliding sleeve inside the heating tube (703), and the upper filter plate (707) is respectively connected to the outer walls of the top ends of a plurality of ceramic heating rods (706) by bolts.

7. The condensation recovery device for polymerization reaction according to claim 1, characterized in that: The first submersible pump (604) and the second submersible pump (701) are respectively connected to switches via wires, and the switches are connected to power lines.

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