External cooling device for distributor

Abstract

The utility model discloses an external cooling device for a distributor, which comprises a distributor main body, a cooling device and an external cooling device, wherein a bowl-shaped groove is formed in the top of the distributor main body; a bowl-shaped groove is formed in the distributor main body, the fixed pipe is fixedly inserted into the distributor main body, the top of the fixed pipe is located in the bowl-shaped groove, and a partition plate is arranged in the fixed pipe. Through cooperation of the sealing plug and the spring, on one hand, the staying time of the cooling liquid in the cooling cavity is prolonged, heat transmitted by the rotating shaft can be more fully absorbed, on the other hand, the cooling liquid has enough time to fully fill the cooling cavity, the rotating shaft makes full contact with the cooling liquid, and the cooling effect of the rotating shaft is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical vapor infiltration technical field especially relates to a distributor external cooling device. BACKGROUND

[0002] Chemical vapor infiltration technology refers to the carbon deposition in the porous medium after the high-temperature decomposition and polycondensation of one or several hydrocarbon gas compounds, which makes the material densification, is the new development of preparing inorganic material new technology, also called chemical vapor deposition.

[0003] In the reactor, the distributor assists the contact and mixing between the nanoscale / micron scale particles in the reaction bin and the reaction gas, and the flow behavior of gas-micro solid particles after mixing is more stable and uniform, but because the inside of the reactor is usually in a high temperature environment, the rotating shaft in the distributor works for a long time under this condition, which is easy to be overheated and performance decreased, and even damaged, therefore, a distributor external cooling device is proposed to solve this problem. UTILITY MODEL CONTENTS

[0004] The utility model provides the following technical scheme in view of the deficiency of prior art:

[0005] A distributor external cooling device, comprising:

[0006] A distributor main body, a bowl-shaped groove is formed in the top of the distributor main body;

[0007] A fixed pipe is fixedly connected to the distributor main body, the top of the fixed pipe is located in the bowl-shaped groove, a partition is arranged in the fixed pipe, the partition divides the cavity of the fixed pipe into a gas cavity and a cooling cavity from top to bottom, a liquid inlet pipe is connected to the bottom of the cooling cavity, and a communication pipe is connected to the top of one side of the cooling cavity;

[0008] A rotating shaft is rotatably connected to the bottom of the fixed pipe, the top of the rotating shaft penetrates the partition and the top of the fixed pipe from top to bottom and extends into the bowl-shaped groove;

[0009] The communication pipe is provided with a sealing plug, a spring is arranged between the sealing plug and the inner wall of the communication pipe, a plurality of through holes are formed in the side wall of the communication pipe, and the liquid in the cooling cavity pushes the sealing plug to move to control the opening of the through holes and the number of the opened through holes.

[0010] As an improvement of the above technical scheme, a heat insulation pipe is fixedly sleeved with the surface of the fixed pipe and located outside the cooling cavity, the communication pipe is located in the heat insulation pipe, and a water outlet pipe is connected to the top of one side of the heat insulation pipe.

[0011] As the improvement of the above technical scheme, one end of the rotating shaft extending into the bowl-shaped groove is fixedly connected with a mounting cover, the mounting cover is movably sleeved on the fixed pipe, a gap is formed between the mounting cover and the fixed pipe, and a paddle is fixedly connected to the circumferential surface of the mounting cover.

[0012] As the improvement of the above technical scheme, the side wall of the fixed pipe and located at one side of the gas cavity is provided with an air inlet hole, and the side wall of the fixed pipe and located inside the mounting cover is provided with a plurality of air outlet holes.

[0013] The utility model discloses beneficial effect:

[0014] By injecting the cooling liquid into the cooling cavity, the heat obtained by the rotating shaft due to the contact with the relatively high temperature reactor can be taken away by the cooling water, in the initial state, because the liquid pressure in the cooling cavity is low, the spring is in the natural state, the sealing plug blocks the through hole, so that the liquid cannot flow out through the through hole, with the cooling liquid continuously injected into the cooling cavity, the liquid pressure in the cooling cavity gradually rises, when the liquid pressure in the cooling cavity is greater than the spring force, the pressure of the liquid will push the sealing plug to move along the communication pipe, the movement of the sealing plug will make the through hole originally blocked by it gradually open, the liquid pressure in the cooling cavity continues to increase, the sealing plug will continue to move, more through holes will be opened, on the one hand, the cooling liquid in the cooling cavity can be extended, and the heat transferred by the rotating shaft can be more fully absorbed, on the other hand, the cooling liquid has enough time to completely fill the cooling cavity, so that the rotating shaft is in full contact with the cooling liquid, and the cooling effect of the rotating shaft is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure front view of the utility model;

[0016] Figure 2 It is the utility model Figure 1 The enlarged structure schematic view of A in the utility model.

[0017] Reference signs: 10, distributor main body;11, bowl-shaped groove;20, mounting cover;21, paddle;30, fixed pipe;301, partition;31, heat insulation pipe;311, water outlet pipe;40, communication pipe;41, through hole;42 spring;43 sealing plug. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is combined with the drawings and examples, and the utility model is further described in detail.It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0019] A cooling device for external use of a distributor, comprising:

[0020] The distributor body 10 is provided with a bowl-shaped groove 11 at the top;

[0021] The fixed pipe 30 is fixedly inserted into the distributor body 10, the top of the fixed pipe 30 is located in the bowl-shaped groove 11, the inside of the fixed pipe 30 is provided with a partition plate 301, the partition plate 301 divides the cavity of the fixed pipe 30 into a gas cavity and a cooling cavity from top to bottom, the bottom of the cooling cavity is provided with a liquid inlet pipe in communication, and the top of one side of the cooling cavity is provided with a communication pipe in communication;

[0022] The rotating shaft is rotatably inserted into the bottom of the fixed pipe 30, the top of the rotating shaft penetrates the partition plate 301 and the top of the fixed pipe 30 in sequence and extends into the bowl-shaped groove 11;

[0023] The communication pipe 40 is provided with a sealing plug 43, the sealing plug 43 and the inner wall of the communication pipe 40 are provided with a spring 42, the side wall of the communication pipe 40 is provided with a plurality of through holes 41, and the liquid in the cooling cavity pushes the sealing plug 43 to move to control the opening of the through holes 41 and the number of the opened through holes 41.

[0024] The distributor body 10 is located in the reactor, the surrounding environment temperature is high, the rotating shaft contacts the reactor to absorb heat, and therefore needs to be cooled to prolong the service life, therefore, the cooling liquid flows into the cooling cavity of the fixed pipe 30 through the liquid inlet pipe, in the initial state, since the liquid pressure in the cooling cavity is low, the spring 42 is in a natural state, the sealing plug 43 blocks the through holes 41, so that the liquid cannot flow out through the through holes 41, along with the continuous injection of the cooling liquid into the cooling cavity, the liquid pressure in the cooling cavity gradually increases, when the liquid pressure in the cooling cavity is greater than the elastic force of the spring 42, the liquid pressure pushes the sealing plug 43 to move along the communication pipe 40, the movement of the sealing plug 43 makes the through holes 41 originally blocked by the sealing plug 43 gradually open, the liquid pressure in the cooling cavity continues to increase, the sealing plug 43 continues to move, and more through holes 41 are opened, on the one hand, the time of the cooling liquid staying in the cooling cavity is prolonged, and the cooling liquid can more fully absorb the heat transferred by the rotating shaft, on the other hand, the cooling liquid has enough time to completely fill the cooling cavity, so that the rotating shaft is fully contacted with the cooling liquid, and the cooling effect of the rotating shaft is greatly improved.

[0025] In one embodiment, the surface of the fixed pipe 30 and outside the cooling cavity is fixedly sleeved with a heat insulation pipe 31, the communication pipe 40 is located in the heat insulation pipe 31, and the top of one side of the heat insulation pipe 31 is provided with a water outlet pipe 311 in communication, the cooling liquid in the heat insulation pipe 31 can effectively block the influence of the high temperature in the reactor on the cooling cavity, reduce the heat transfer between the cooling cavity and the reactor, avoid the cooling liquid in the cooling cavity from being heated due to absorbing too much heat, so as to ensure that the cooling liquid continuously absorbs the heat of the rotating shaft at a lower temperature, and maintain good cooling effect.

[0026] In one embodiment, the rotating shaft extends to one end of the bowl-shaped groove 11 and is fixedly connected with a mounting cover 20, the mounting cover 20 is movably sleeved on the fixed tube 30, the mounting cover 20 and the fixed tube 30 have a gap therebetween, the circumferential surface of the mounting cover 20 is fixedly connected with a paddle 21, the sidewall of the fixed tube 30 and located at one side of the gas cavity is provided with an air inlet hole, the sidewall of the fixed tube 30 and located inside the mounting cover 20 is provided with a plurality of gas outlets, the reaction gas enters the gas cavity of the fixed tube 30 through the air inlet hole, and then flows out of the fixed tube 30 through the gas outlets, and then flows into the bowl-shaped groove 11 through the gap between the mounting cover 20 and the fixed tube 30, and then flows into the reactor, at the same time, the rotating shaft is driven to rotate by the external force, and the rotating shaft can drive the paddle 21 to rotate through the mounting cover 20. Since the chemical vapor deposition / permeation reaction is carried out in the reactor, occasionally, some micro solid particles will be deposited at the bottom of the reactor due to the slow rising speed of the vortex gas flow near the inner wall of the reactor, and then flow into the bowl-shaped groove 11 of the distributor body 10, at this time, the micro solid particles are mixed with the upward vortex gas flow formed in the distributor body 10 by the rotation of the paddle 21, and then move upward, and then are blown into the gas-micro solid particle fluidized body again.

[0027] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it.

Claims

1. A distributor external cooling device, characterized by, The utility model relates to a kind of gas distribution device, including: Distributor body (10), the bowl type slot (11) is opened in the top of the distributor body (10); Fixed pipe (30) is fixedly plugged in the distributor body (10), the top of the fixed pipe (30) is located in bowl type slot (11), the inside of the fixed pipe (30) is provided with baffle (301), the cavity of the fixed pipe (30) is divided into gas cavity and cooling cavity from top to bottom by baffle (301), the bottom of the cooling cavity is communicated and is provided with liquid inlet pipe, the top of one side of the cooling cavity is communicated and is provided with communication pipe; Rotary shaft is rotatably plugged in the bottom of the fixed pipe (30), the top of the rotary shaft is in sequence and penetrates baffle (301) and the top of fixed pipe (30) and extends to bowl type slot (11) inside; Wherein, the communication pipe (40) is provided with sealing plug (43), spring (42) is arranged between sealing plug (43) and the inner wall of the communication pipe (40), the side wall of the communication pipe (40) is opened and is provided with multiple groups of through hole (41), liquid in the cooling cavity pushes sealing plug (43) to move to control through hole (41) open and the number of through hole (41) open.

2. A distributor external cooling device according to claim 1, characterized in that: The surface of the fixed pipe (30) and located outside cooling cavity is fixedly sleeved with heat insulation pipe (31), the communication pipe (40) is located in heat insulation pipe (31), the top of one side of the heat insulation pipe (31) is communicated and is provided with water outlet pipe (311).

3. A distributor external cooling device according to claim 2, characterized in that: The end of the rotary shaft extending to bowl type slot (11) is fixedly connected with mounting cover (20), the mounting cover (20) is movably sleeved on fixed pipe (30), the gap between the mounting cover and the fixed pipe (30) has, the circumferential surface of the mounting cover (20) is fixedly connected with paddle (21).

4. A distributor external cooling device according to claim 3, characterized in that: The side wall of the fixed pipe (30) and located in one side of gas cavity is provided with air inlet hole, the side wall of the fixed pipe (30) and located inside mounting cover (20) is opened and is provided with multiple groups of air outlet.

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