CN212431371U

CN212431371U - Molten salt storage tank with leakage detection and thermal compensation device

Info

Publication number: CN212431371U
Application number: CN202021161167.3U
Authority: CN
Inventors: 司继松; 赵国明; 代春雷; 马骏; 魏治; 张学博
Original assignee: Bluestar Beijing Chemical Machinery Co Ltd
Current assignee: Bluestar Beijing Chemical Machinery Co Ltd
Priority date: 2020-06-20
Filing date: 2020-06-20
Publication date: 2021-01-29
Anticipated expiration: 2030-06-20

Abstract

Fused salt storage tank with leak detection and thermal compensation device, which comprises a tank body, the below of the jar body is equipped with the sleeve, telescopic top and the bottom plate of the jar body are pasted mutually, telescopic lower part is equipped with the leak detection bottom plate, the edge of leak detection bottom plate links to each other with telescopic inner wall is fixed, the sleeve, the bottom plate of leak detection bottom plate and the jar body encloses and constitutes a cavity, upper portion in the cavity is equipped with more than one heating rod, the cavity intussuseption is filled with the insulating material layer, the lower part in the cavity communicates with each other with the fused salt collecting vat through the salt discharging pipe, be equipped with the thermocouple that a plurality of temperature measurement were used on the leak detection bottom plate, a. Its aim at provides a molten salt storage tank that preheats that can be quick even, reduces by a wide margin and preheats the required time to can in time discover the molten salt leakage phenomenon, retrieve the molten salt of leaking, avoid causing the molten salt storage tank that has leakage detection and thermal compensation device of pollution to the environment.

Description

Molten salt storage tank with leakage detection and thermal compensation device

Technical Field

The utility model relates to a solar photothermal power field, specifically speaking relate to a fused salt storage tank with leak detection and thermal compensation device.

Background

One challenge in using renewable energy sources, particularly solar energy, is to deal with the intermittent nature of the energy supply caused by weather, diurnal solar fluctuations, and seasonal variations, and one way to effectively manage the variability of solar energy resources is to add thermal energy storage devices to them, store the varying energy when there is excess power, and then release the stored energy when the solar energy is producing insufficient or no power, thereby achieving the need for a continuous power supply.

In the solar heat storage technology, the preheating uniformity of the molten salt storage tank for storing heat energy before use is always a restriction factor influencing the use safety of the storage tank, and the project schedule is slow due to the fact that a large amount of time is consumed for uniformly preheating the molten salt storage tank.

In addition, the fused salt storage tank still has the leakage phenomenon, causes the unable normal use of fused salt storage tank to cause serious pollution to the environment, how to detect the fused salt leakage fast, be the problem that this field is key at present about.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a molten salt storage tank preheats that can be quick even reduces by a wide margin and preheats the required time to can in time discover the fused salt leakage phenomenon, retrieve the fused salt of leaking, avoid causing the fused salt storage tank that has leak detection and thermal compensation device of pollution to the environment.

The utility model discloses a fused salt storage tank with leak detection and thermal compensation device, including a tank body, the below of the tank body is equipped with the sleeve, the top of sleeve pastes with the bottom plate of the tank body and links to each other, the lower part of sleeve is equipped with the leak detection bottom plate, the edge of leak detection bottom plate is fixedly connected with the inner wall of sleeve, the leak detection bottom plate and the bottom plate of the tank body enclose and constitute a cavity, the upper portion in the cavity is equipped with more than one heating rod, the cavity is filled with the heat preservation material layer, the lower part in the cavity is communicated with the fused salt collecting vat through the salt;

and the leakage detection bottom plate is provided with a plurality of thermocouples for measuring temperature, and the thermocouples are respectively and electrically connected with the electric control device.

Preferably, the leakage detection bottom plate is a steel plate with an upward convex middle part and a downward concave periphery.

Preferably, the horizontal cross-sections of the sleeve and the tank are circular respectively.

Preferably, the number of the heating rods is 3-16, and 3-16 heating rods are arranged around the center of the sleeve along a horizontal radial direction.

Preferably, the distance between the heating rod and the bottom plate of the tank body is 150 mm-300 mm.

Preferably, the leakage detection bottom plate is provided with a strip-shaped electric tracing.

Preferably, a base boss made of high-temperature-resistant concrete is arranged below the sleeve, and the sleeve is fixed to the top of the base boss through foundation bolts.

The utility model discloses a membrane polar distance ionic membrane electrolysis cell buffering net when using, in case the thermocouple that the temperature measurement that is equipped with on the leak detection bottom plate was used detects the temperature and appears unusually, shows promptly that the fused salt in the jar body has taken place to leak, can detect out fused salt leakage phenomenon rapidly from this, gains the time for emergency treatment fused salt leakage to in time retrieve noble fused salt through fused salt collection device, also avoided causing the influence to the environment. Furthermore, the utility model discloses a heating rod that sets up in the heat preservation supplements the heat for the bottom plate of the jar body of fused salt storage tank, more does benefit to preheating of storage tank evenly, can reduce by a wide margin and preheat the required time, improve equipment's operating efficiency, reduces the investment cost of project. Therefore, the utility model discloses a fused salt storage tank with leak detection and thermal compensation device has the fused salt storage tank that preheats that can be quick even, reduces by a wide margin and preheats the required time to can in time discover fused salt leakage phenomenon, retrieve the fused salt of leaking, avoid causing the characteristics of pollution to the environment.

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

Drawings

Fig. 1 is a front view of a schematic structural view of a molten salt storage tank with a leak detection and thermal compensation device according to the present invention;

FIG. 2 is a schematic cross-sectional view of a molten salt storage tank with a leak detection and thermal compensation device according to the present invention, taken along a horizontal direction of a thermocouple;

fig. 3 is a schematic cross-sectional view of the molten salt storage tank with the leakage detection and thermal compensation device according to the present invention, along the horizontal direction of the strip-shaped electric tracing.

Detailed Description

As shown in fig. 1, 2 and 3, the molten salt storage tank with the leakage detection and thermal compensation device of the present invention includes a tank body 1, a sleeve 3 is disposed below the tank body 1, the top end of the sleeve 3 is attached to the bottom plate of the tank body 1, a leakage detection bottom plate 5 is disposed at the lower portion of the sleeve 3, the edge of the leakage detection bottom plate 5 is fixedly connected to the inner wall of the sleeve 3, the leakage detection bottom plate 5 and the bottom plate of the tank body 1 enclose to form a chamber 10, more than one heating rod 4 is disposed at the upper portion in the chamber 10, a thermal insulation material layer 2 is filled in the chamber 10, and the lower portion in the chamber 10 is communicated with a molten salt collecting tank 8 through a salt discharge pipe;

the leakage detection bottom plate 5 is provided with a plurality of thermocouples 6 for measuring temperature, and the thermocouples 6 are respectively and electrically connected with the electric control device.

As a further improvement of the present invention, the leakage detecting bottom plate 5 is a steel plate with a middle portion protruding upwards and a periphery recessed downwards.

As a further improvement of the utility model, the horizontal cross sections of the sleeve 3 and the tank body 1 are respectively circular.

As a further improvement of the present invention, the number of the heating rods 4 is 3-16, and 3-16 heating rods 4 are radially arranged around the center of the sleeve 3 along the horizontal direction.

As a further improvement of the utility model, the distance between the heating rod 4 and the bottom plate of the tank body 1 is 150 mm-300 mm.

As a further improvement of the present invention, a strip-shaped electric tracing 11 is disposed on the leakage detecting bottom plate 5. The heat tracing bands are uniformly arranged, so that heat compensation can be provided for leaked molten salt, and the leaked molten salt is prevented from crystallizing and solidifying.

As a further improvement, the below of above-mentioned sleeve 3 is equipped with the basic boss 9 that high temperature resistant concrete made, and sleeve 3 passes through rag bolt to be fixed at the top of basic boss 9.

The utility model discloses a membrane polar distance ionic membrane electrolysis cell buffering net when using, in case the thermocouple 6 that the temperature measurement that is equipped with on the leak detection bottom plate 5 was used detects the temperature and appears unusually, shows promptly that the fused salt in the jar body 1 has taken place to leak, can detect out fused salt leakage phenomenon rapidly from this, gains the time for taking relevant emergency measures. And the electric tracing 11 on the leakage detection bottom plate is started to heat, so that the fused salt is prevented from being solidified at the leakage detection bottom plate 5. The utility model discloses still can collect leaking the fused salt through row's salt pipe 7 and fused salt collecting vat 8 and come up and utilize again. Furthermore, the utility model discloses a fused salt storage tank with leak detection and thermal compensation device still can utilize the heating rod 4 that upper portion in the cavity 10 was equipped with to preheat a jar body 1, can reduce storage tank heat-retaining time from this, makes the project move the electricity generation ahead of time and produces economic benefits to still can make jar body 1 preheat in-process difference in temperature and reduce, guarantee jar body 1 safe in utilization and the stability of system. Therefore, the utility model discloses a fused salt storage tank with leak detection and thermal compensation device has the fused salt storage tank that preheats that can be quick even, reduces by a wide margin and preheats the required time to can in time discover fused salt leakage phenomenon, retrieve the fused salt of leaking, avoid causing the characteristics of pollution to the environment.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by the technical solutions of the present invention by those skilled in the art are intended to fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.

Claims

1. Fused salt storage tank with leak detection and thermal compensation device, characterized by: the device comprises a tank body (1), wherein a sleeve (3) is arranged below the tank body (1), the top end of the sleeve (3) is attached to a bottom plate of the tank body (1), a leakage detection bottom plate (5) is arranged at the lower part of the sleeve (3), the edge of the leakage detection bottom plate (5) is fixedly connected with the inner wall of the sleeve (3), the leakage detection bottom plate (5) and the bottom plate of the tank body (1) are enclosed to form a cavity (10), more than one heating rod (4) is arranged at the upper part in the cavity (10), a fused salt heat-insulating material layer (2) is filled in the cavity (10), and the lower part in the cavity (10) is communicated with a fused salt collecting tank (8) through a salt discharge;

the leakage detection bottom plate (5) is provided with a plurality of thermocouples (6) for measuring temperature, and the thermocouples (6) are respectively and electrically connected with the electric control device.

2. A molten salt storage tank with leak detection and thermal compensation apparatus as claimed in claim 1, wherein: the leakage detection bottom plate (5) is a steel plate with the middle part protruding upwards and the periphery recessed downwards.

3. A molten salt storage tank with leak detection and thermal compensation apparatus as claimed in claim 2, wherein: the horizontal sections of the sleeve (3) and the tank body (1) are circular respectively.

4. A molten salt storage tank with leak detection and thermal compensation apparatus as claimed in claim 3, wherein: the number of the heating rods (4) is 3-16, and the 3-16 heating rods (4) are arranged around the center of the sleeve (3) along the horizontal radial direction.

5. A molten salt storage tank with leak detection and thermal compensation apparatus as claimed in claim 4, wherein: the distance between the heating rod (4) and the bottom plate of the tank body (1) is 150 mm-300 mm.

6. A molten salt storage tank with leak detection and thermal compensation apparatus as claimed in any one of claims 1 to 5, characterised by: and a strip-shaped electric tracing heat (11) is distributed on the leakage detection bottom plate (5).

7. A molten salt storage tank with leak detection and thermal compensation apparatus as claimed in claim 6, wherein: the lower part of sleeve (3) is equipped with basic boss (9) that high temperature resistant concrete made, and sleeve (3) pass through rag bolt to be fixed at the top of basic boss (9).