CN211906975U

CN211906975U - Multilayer jacket temperature control device using fluid medium

Info

Publication number: CN211906975U
Application number: CN201921971167.7U
Authority: CN
Inventors: 季松涛; 魏严凇; 高永光; 刁均辉; 陈林林; 史晓磊; 何晓军
Original assignee: China Institute of Atomic of Energy
Current assignee: China Institute of Atomic of Energy
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-11-10
Anticipated expiration: 2029-11-15

Abstract

The utility model provides an use fluid medium's multilayer to press from both sides cover temperature regulating device, press from both sides cover and multilayer insulating layer including the multilayer. 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 utility model discloses can adjust the flow of fluid medium and the electric current size of heating resistor silk in every layer of clamp cover to the different regional temperature difference of control containment outer wall can simulate the gradient distribution that the temperature is by high to low by supreme present of containment outer wall under the serious accident condition.

Description

Multilayer jacket temperature control device using fluid medium

Technical Field

The utility model belongs to the technical field of temperature control, concretely relates to use fluid medium's multilayer to press from both sides cover temperature regulating device.

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 utility model aims at designing an use fluid medium's multilayer jacket temperature regulating device, under the simulation serious accident condition, the gradient that the outer wall of reactor containment is from the bottom to the top temperature that appears is distributed to from high to low.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

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 utility model discloses the beneficial effect who gains does:

the utility model provides a technical scheme can adjust the flow of fluid medium and the electric current size of heating resistor silk in every layer of cover that presss from both sides to the different regional temperature difference of control containment outer wall can simulate serious accident condition down the containment outer wall by supreme gradient distribution that the temperature is by high to low that presents.

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 present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-2, the utility model provides an use fluid medium's multilayer jacket temperature regulating device, including multilayer jacket and multilayer insulating layer, multilayer jacket and multilayer insulating layer are the ring form and all wrap up the outer wall at 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.

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.

Claims

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, and the stirring plates (5) are of a sheet structure and are welded in the jacket.

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 6, characterized in that: the material of the stirring plate (5) is corrosion-resistant stainless steel.

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