阅读说明：本技术 一种使用流体介质的多层夹套控温装置 (Multilayer jacket temperature control device using fluid medium ) 是由 季松涛 魏严凇 高永光 刁均辉 陈林林 史晓磊 何晓军 于 2019-11-15 设计创作，主要内容包括：本发明提供了一种使用流体介质的多层夹套控温装置,包括多层夹套和多层隔热层。多层夹套和多层隔热层均为圆环状且均包裹在气溶胶试验容器的外壁。每一层隔热层均设置在相邻两层夹套中间。多层夹套和多层隔热层的内部充满流体介质。每层夹套均设置有一个流体入口管和一个流体出口管。每层夹套的外壁缠绕有加热电阻丝。本发明可以调节每层夹套中流体介质的流量和加热电阻丝的电流大小,从而控制安全壳外壁不同区域的温度不同,能够模拟严重事故条件下安全壳外壁由下至上呈现温度由高到低的梯度分布。(The invention provides a multilayer jacket temperature control device using fluid media, which comprises a multilayer jacket and a plurality of insulating layers. The multilayer jacket and the multilayer heat-insulating layer are both circular and are wrapped on the outer wall of the aerosol test container. Each layer of heat insulation layer is arranged between two adjacent layers of jacket. The interior of the multilayer jacket and the multilayer insulation layer are filled with a fluid medium. Each jacket is provided with one fluid inlet pipe and one fluid outlet pipe. The outer wall of each layer of jacket is wound with a heating resistance wire. The invention can adjust the flow of fluid medium in each layer of jacket and the current of the heating resistance wire, thereby controlling different temperatures of different areas of the outer wall of the containment vessel, and simulating gradient distribution of the temperature of the outer wall of the containment vessel from high to low from bottom to top under the condition of serious accidents.)

1. A multilayer jacketed temperature control device using a fluid medium, characterized in that: including multilayer clamp cover and multilayer insulating layer, multilayer clamp cover and multilayer insulating layer are the ring form and all wrap up the outer wall at aerosol test container (1), and each layer of insulating layer all sets up in the middle of adjacent two-layer clamp cover, and multilayer clamp cover's inside is full of fluid medium, and multilayer insulating layer is solid construction.

2. The multi-layer jacketed temperature control device using fluid medium according to claim 1, characterized in that: the multilayer jacket is a three-layer jacket (2), the multilayer heat-insulating layer is a two-layer heat-insulating layer, each layer of heat-insulating layer is arranged between the two adjacent layers of jacket, the three-layer jacket (2) comprises a first layer of jacket (21), a second layer of jacket (22) and a third layer of jacket (23), and the two-layer heat-insulating layer comprises a first layer of heat-insulating layer (31) and a second layer of heat-insulating layer (32).

3. The multi-layer jacketed temperature control device using fluid medium according to claim 1, characterized in that: each layer of jacket is provided with a fluid inlet pipe and a fluid outlet pipe, the fluid inlet pipe is arranged at the bottom end of the side wall of each layer of jacket, and the fluid outlet pipe is arranged at the top end of the side wall of each layer of jacket.

4. The multi-layer jacketed temperature control device using fluid medium according to claim 3, characterized in that: each fluid inlet pipe is provided with an isolation valve, and the flow of the inflowing fluid medium is controlled by adjusting the opening and closing degree of the isolation valve.

5. The multi-layer jacketed temperature control device using fluid medium according to claim 1, characterized in that: the heating resistance wire is wound on the outer wall of each layer of jacket, and the heat productivity of the heating resistance wire is adjusted by controlling the circulating current of the heating resistance wire of each layer of jacket, so that the temperature of the fluid medium in each layer of jacket is controlled.

6. The multi-layer jacketed temperature control device using fluid medium according to claim 1, characterized in that: the inner part of each layer of jacket is also provided with two stirring plates (5), the two stirring plates (5) are symmetrically distributed relative to the axis of the jacket, the stirring plates (5) are of a sheet structure and are welded in the jacket, and the stirring plates (5) are made of corrosion-resistant stainless steel.

7. The multi-layer jacketed temperature control device using fluid medium according to claim 1, characterized in that: the material of each layer of jacket is stainless steel.

8. The multi-layer jacketed temperature control device using fluid medium according to claim 1, characterized in that: and each layer of heat insulation layer is made of a heat insulation plate.

9. The multi-layer jacketed temperature control device using fluid medium according to claim 1, characterized in that: the fluid medium is water or oil.

10. The multi-layer jacketed temperature control device using fluid media of any one of claims 1-9, wherein: the multilayer jacket temperature control device using the fluid medium can be used for heating or cooling the outer wall of other containers; for heating, the fluid medium used is oil or water; for cooling, the fluid medium used is water.

Technical Field

The invention belongs to the technical field of temperature control, and particularly relates to a multilayer jacket temperature control device using a fluid medium.

Background

Under the condition of serious accidents, the outer wall of the containment vessel is in gradient distribution with the temperature from high to low from bottom to top. To study the conditions within the containment under accident conditions, the above temperature profile must be simulated. The existing containment temperature control technology is mostly a single-layer jacket temperature control technology, cannot realize gradient distribution of temperature, cannot adjust the flow of fluid flowing into a water jacket, can only control the temperature by controlling the temperature of the fluid to avoid the temperature, and is lack of flexibility and accuracy.

Therefore, there is a need to design an improved jacket temperature control device to solve the above-mentioned shortcomings of the prior art.

Disclosure of Invention

The invention aims to design a multilayer jacket temperature control device using a fluid medium, which simulates the gradient distribution of the temperature of the outer wall of a containment vessel from top to bottom under the condition of serious accidents.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a multi-layer jacket temperature control device using fluid medium comprises a multi-layer jacket and a multi-layer heat insulation layer. The multilayer jacket and the multilayer heat-insulating layer are both circular and are wrapped on the outer wall of the aerosol test container. Each layer of heat insulation layer is arranged between two adjacent layers of jacket. The interior of the multilayer jacket is filled with a fluid medium. The multilayer heat insulating layer is of a solid structure and is used for isolating heat transfer between two adjacent layers of jackets.

The multilayer jacket is a three-layer jacket, the multilayer heat-insulating layer is a two-layer heat-insulating layer, and each layer of heat-insulating layer is arranged between two adjacent layers of jackets. The three-layer jacket comprises a first layer jacket, a second layer jacket and a third layer jacket. The secondary insulation layer comprises a first layer of insulation and a second layer of insulation.

Each jacket is provided with one fluid inlet pipe and one fluid outlet pipe. The fluid inlet pipe is arranged at the bottom end of the side wall of each layer of jacket. Fluid outlet pipes are arranged at the top end of the side wall of each layer of jacket. The fluid medium continuously flows into the jackets from the fluid inlet pipes and fills the corresponding jackets. The fluid medium flows out from the fluid outlet pipe, and the flow steady balance of the flow of the fluid medium is ensured.

Each fluid inlet pipe is provided with an isolation valve, and the flow of the inflowing fluid medium is controlled by adjusting the opening and closing degree of the isolation valve.

And the outer wall of each layer of jacket is wound with a heating resistance wire. The heat productivity of the heating resistance wire of each layer of jacket is adjusted by controlling the current flowing through the heating resistance wire of each layer of jacket, so that the temperature of the fluid medium in each layer of jacket is controlled.

Furthermore, two stirring plates are arranged inside each layer of jacket and are symmetrically distributed relative to the axis of the jacket.

The mixing plate is of a sheet structure and is welded inside the jacket, and the welding strength is enough to resist the long-time scouring of fluid inside the jacket.

The mixing plate is used for optimizing the flow channel and distributing the coolant in the jacket uniformly as much as possible.

Preferably, the material of the jacket is stainless steel.

Preferably, the material of the heat insulation layer is heat insulation plate.

Preferably, the fluid medium is water or oil.

Preferably, the material of the mixing plate is corrosion-resistant stainless steel.

The multilayer jacket temperature control device using the fluid medium is not only suitable for the containment vessel of the reactor, but also can be used for heating or cooling the outer walls of other containers.

Different fluid medium compositions are provided according to different requirements of heating or cooling. For example, for heating, the fluid medium used is oil or water. For cooling, the fluid medium used is water.

The beneficial effects obtained by the invention are as follows:

the technical scheme provided by the invention can adjust the flow of the fluid medium in each layer of jacket and the current of the heating resistance wire, thereby controlling the different temperatures of different areas of the outer wall of the containment vessel, and simulating the gradient distribution of the temperature from high to low of the outer wall of the containment vessel from bottom to top under the condition of serious accidents.

Drawings

FIG. 1 is a top view of a multi-layer jacketed temperature control device using a fluid medium;

FIG. 2 is a front cross-sectional view of a multi-layer jacketed temperature control device using a fluid medium;

FIG. 3 is a front view of the kneading plate.

In the figure: 1 is an aerosol test container; 2 is a three-layer jacket; 21 is a first layer jacket; 22 is a second layer jacket; a third layer of jacket is 23; 31 is a first layer of heat insulation layer; 32 is a second layer of heat insulation; 41 is a first isolating valve; 42 is a second isolating valve; no. 43 is a third isolating valve; 5 is a mixing plate.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.

As shown in fig. 1-2, the invention provides a multi-layer jacket temperature control device using a fluid medium, which comprises a multi-layer jacket and a multi-layer heat insulation layer, wherein the multi-layer jacket and the multi-layer heat insulation layer are both circular and are wrapped on the outer wall of an aerosol test container 1. Each layer of heat insulation layer is arranged between two adjacent layers of jacket.

The interior of the multilayer jacket is filled with a fluid medium. The multilayer heat insulating layer is of a solid structure and is used for isolating heat transfer between two adjacent layers of jackets.

The multilayer jacket is a three-layer jacket 2, the multilayer heat-insulating layer is a two-layer heat-insulating layer, and each layer of heat-insulating layer is arranged between two adjacent layers of jackets. The three-layer jacket 2 includes a first-layer jacket 21, a second-layer jacket 22, and a third-layer jacket 23. The secondary insulation comprises a first layer of insulation 31 and a second layer of insulation 32.

Each jacket is provided with one fluid inlet pipe and one fluid outlet pipe. The fluid inlet pipe is arranged at the bottom end of the side wall of each layer of jacket. Fluid outlet pipes are arranged at the top end of the side wall of each layer of jacket. The fluid medium continuously flows into the jackets from the fluid inlet pipes and fills the corresponding jackets. The fluid medium flows out from the fluid outlet pipe, and the flow steady balance of the flow of the fluid medium is ensured.

Each fluid inlet pipe is provided with an isolation valve, and the flow of the inflowing fluid medium is controlled by adjusting the opening and closing degree of the isolation valve.

And the outer wall of each layer of jacket is wound with a heating resistance wire. The heat productivity of the heating resistance wire of each layer of jacket is adjusted by controlling the current flowing through the heating resistance wire of each layer of jacket, so that the temperature of the fluid medium in each layer of jacket is controlled.

Further, two stirring plates 5 are arranged inside each layer of jacket, and the two stirring plates 5 are symmetrically distributed relative to the axis of the jacket. The mixing plate 5 is of a sheet structure and is welded inside the jacket, and the welding strength is enough to resist the long-time scouring of fluid inside the jacket.

The mixing plate 5 is used to optimize the flow channels and to distribute the coolant as uniformly as possible inside the jacket.

Preferably, the jacket is made of stainless steel, and the heat insulation layer is made of heat insulation plates.

Preferably, the fluid medium is water or oil.

Preferably, the material of the mixing plate is corrosion-resistant stainless steel.

The multilayer jacket temperature control device using the fluid medium is not only suitable for the containment vessel of the reactor, but also can be used for heating or cooling the outer walls of other containers.

Different fluid medium compositions are provided according to different requirements of heating or cooling. For example, for heating, the fluid medium used is oil or water. For cooling, the fluid medium used is water.