Gas-liquid cold storage system

Abstract

The invention discloses a gas-liquid cold storage system which comprises an ammonia liquid cold storage bin, one side of the ammonia liquid cold storage bin is connected with a connecting pipe, the lower end of the connecting pipe is connected with a storage bin, one side of the storage bin is provided with a heating bin, the heating bin communicates with the storage bin, the upper side of the heating bin is connected with a movable bin, and the movable bin communicates with the ammonia liquid cold storage bin. An automatic pressurizing device is arranged in the movable bin and adopts a unique one-way piston and Tesla one-way channel combined design, so that a novel solution extraction method is formed. Compared with a traditional mechanical compressor, the problem that key components are excessively abraded due to the high compression ratio is solved. The one-way piston is matched with the triangular structure of the compression bin, so that the process of compressing gaseous ammonia into liquid ammonia is stably realized, the equipment failure occurrence probability is reduced, the long-time stable operation of the system is guaranteed, and the maintenance cost and the shutdown risk are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration, and particularly to a gas-liquid energy storage cooling system. Background Art

[0002] Gas and water can form gas hydrates at relatively low temperatures and relatively high pressures (varying with the type of gas). Approximately 200 times the standard volume of gas can be accommodated in one cubic meter of water. When the temperature of the hydrate returns to above its phase equilibrium temperature, the gas hydrate will decompose and release gas. When the hydrate is placed in a sealed container, the pressure inside the container will gradually increase as the gas is released. Since the phase equilibrium curve of most gas hydrates has an inflection point above zero degrees Celsius, that is, above this temperature, the phase equilibrium pressure of the hydrate increases sharply. Therefore, hydrate synthesis can be promoted at a relatively low pressure below the inflection temperature, and then it can be decomposed at a temperature above this inflection point to obtain a relatively high gas pressure. Especially at room temperature, the phase equilibrium pressure of the hydrate is very high, and the hydrate can hardly exist, so extremely high pressures can be obtained.

[0003] Currently, mechanical compressors are usually used in refrigeration systems to provide the pressure difference required by the refrigeration system. A high compression ratio will significantly increase the working load of the compressor, causing key components of the compressor, such as pistons, cylinders, bearings, etc., to bear greater mechanical stress. Under long-term high-load operation, these components are extremely prone to increased wear, which in turn leads to a decrease in the operating stability of the compressor and increases the probability of equipment failure. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that under long-term high-load operation with a high compression ratio, these components are extremely prone to increased wear, which in turn leads to a decrease in the operating stability of the compressor and increases the probability of equipment failure mentioned in the above background art.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A gas-liquid energy storage cooling system includes an ammonia liquid energy storage tank, one side of which is connected with a connecting pipe. The lower end of the connecting pipe is connected with a storage tank. One side of the storage tank is provided with a heating tank, which is communicated with the storage tank. The upper side of the heating tank is connected with a movable tank, which is communicated with the ammonia liquid energy storage tank. An automatic pressurizing device is arranged in the movable tank.

[0006] Preferably, the lower end of the movable tank has a compression tank. The pressurizing device includes a one-way piston and a Tesla one-way channel opened on the one-way piston. The liquid flow of the Tesla one-way channel flows towards the compression tank.

[0007] Preferably, the heating chamber is connected to the storage chamber through a pipeline. The lower end of the pipeline communicates with the movable chamber. The connection part of the pipeline and the heating chamber is located above the compression chamber, and the upper end of the pipeline communicates with the upper end of the storage chamber.

[0008] Preferably, a one-way device is arranged between the heating chamber and the movable chamber. The two ends of the one-way device are respectively connected to the upper end of the heating chamber and the upper end of the movable chamber.

[0009] Preferably, a heater is arranged on the lower side of the heating chamber.

[0010] Preferably, a plurality of shunt pipes are connected to both sides of the heating chamber.

[0011] Preferably, a regulating valve is arranged on the connecting pipe.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The automatic pressurizing device adopts a unique design of a one-way piston combined with a Tesla one-way channel to form a new solution extraction method. Compared with traditional mechanical compressors, it avoids the problem of excessive wear of key components caused by high compression ratios. With the cooperation of the triangular structure of the compression chamber, the one-way piston stably realizes the process of compressing gaseous ammonia into liquid state, reduces the probability of equipment failures, ensures the long-term stable operation of the system, and reduces the maintenance cost and shutdown risk. The system uses the principle of heat absorption during the phase change of liquid ammonia to gaseous ammonia for refrigeration. At the same time, the ammonia liquid cold storage chamber can store liquid ammonia to release cold energy when needed, realizing efficient refrigeration and cold storage functions. Sodium chromate is added as an anti-rust agent in the storage chamber, effectively preventing the corrosion of metal components in the system and extending the service life of the system. The one-way piston changes the application method based on the Tesla one-way valve and combines the function of piston pressurization to form a new solution extraction method. The one-way piston has no springs or vulnerable parts, reducing the failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram after the one-way piston of the present invention rises.

[0016] Description of drawing numbers: 1. Ammonia liquid cold storage bin; 2. Connecting pipe; 21. Regulation valve; 3. Storage bin; 4. Heating bin; 41. Shunt pipe; 5. Movable bin; 51. Compression bin; 6. Pressurizing device; 61. One-way piston; 62. Tesla one-way channel; 7. One-way device; 8. Heater; 9. Pipe. Detailed implementation manners

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious deformations. The basic principles defined in the following description of the present invention can be used in other implementation manners, deformation schemes, improvement schemes, equivalent schemes, and other technical schemes without departing from the spirit and scope of the present invention.

[0019] Those skilled in the art should understand that in the disclosure of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or position based on the orientation or position relationship shown in the drawings. It is only for the convenience of simplifying the description of the present invention, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention.

[0020] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of one component can be one, and in other embodiments, the number of this component can be multiple. The term "one" should not be construed as limiting the quantity.

[0021] Please refer to Figure 1 - Figure 2, a gas-liquid energy storage system, including an ammonia liquid energy storage tank 1. The ammonia liquid energy storage tank 1 can store the energy storage liquid, and is connected with a connecting pipe 2 on one side. The lower end of the connecting pipe 2 is connected with a storage tank 3. The storage tank 3 stores ammonia + water + lithium bromide + sodium chromate, and sodium chromate is an anti-rust agent. A regulating valve 21 is arranged on the connecting pipe 2. The regulating valve 21 is a prior art. Through the adjustment of the regulating valve 21, the inflow and outflow of liquid ammonia can be flexibly controlled to meet different refrigeration requirements. The ammonia liquid energy storage tank 1 can be externally connected with an evaporation coil for refrigeration. The evaporation coil is a prior art. The phase change from ammonia liquid to gas absorbs heat for refrigeration. A heating chamber 4 is arranged on one side of the storage tank 3. The heating chamber 4 is communicated with the storage tank 3. The upper side of the heating chamber 4 is connected with a movable chamber 5. The movable chamber 5 is communicated with the ammonia liquid energy storage tank 1. An automatic pressurizing device 6 is arranged in the movable chamber 5. The lower end of the movable chamber 5 has a compression chamber 51. The compression chamber 51 is triangular. The pressurizing device 6 includes a one-way piston 61 and a Tesla one-way channel 62 opened on the one-way piston 61. The liquid flow of the Tesla one-way channel 62 flows towards the compression chamber 51. The triangular shape of the compression chamber 51 makes the one-way piston 61 unable to enter the compression chamber 51. The one-way piston 61 is provided with a Tesla one-way channel 62, and the liquid flow of the Tesla one-way channel 62 flows towards the compression chamber 51. Gaseous ammonia is compressed into liquid in the compression chamber 51. The one-way piston 61 changes the application method on the basis of Tesla's one-way valve and combines the function of piston pressurization to form a new solution extraction method.

[0022] The heating chamber 4 and the storage tank 3 are connected by a pipeline 9. The lower end of the pipeline 9 is communicated with the movable chamber 5. The connection part of the pipeline 9 and the heating chamber 4 is located on the upper side of the compression chamber 51, so that gaseous ammonia is pressurized in the compression chamber 51. Under pressure, gaseous ammonia becomes liquid, and then pushes the one-way piston 61 to move. Finally, liquid ammonia enters the ammonia liquid energy storage tank 1 through the pipeline 9. The upper end of the pipeline 9 is communicated with the upper end of the storage tank 3.

[0023] A one-way device 7 is arranged between the heating chamber 4 and the movable chamber 5. The two ends of the one-way device 7 are respectively connected with the upper end of the heating chamber 4 and the upper end of the movable chamber 5. The one-way device 7 is also of Tesla structure, so that the gas flowing out of the heating chamber 4 enters the movable chamber 5 unidirectionally. A heater 8 is arranged on the lower side of the heating chamber 4 to pressurize by heating. The heater 8 is a thick film heater 8. The heater 8 heats the heating chamber 4, so that ammonia gasifies and flows out.

[0024] A plurality of shunt pipes 41 are connected to both sides of the heating chamber 4. The shunt pipes 41 improve the uniformity of shunt, which is beneficial to ammonia liquid entering the ammonia liquid energy storage tank 1. The operation of the shunt pipes 41 is a prior art and will not be described in detail.

[0025] The heater 8 heats the heating chamber 4, causing the liquid to vaporize and enter the movable chamber 5 through the one-way valve. Then, it compresses the chamber 51 through the Tesla one-way channel 62. As the gas continuously enters, the gas pressure in the compression chamber 51 gradually increases. When the gas pressure in the compression chamber 51 reaches a certain level, the liquid will be squeezed and liquefied. This liquefaction process further increases the pressure in the compression chamber 51 and pushes the one-way piston 61 to move upward in the movable chamber 5. When the one-way piston 61 crosses the connection point between the pipe 9 and the heating chamber 4 (as Figure 2 shown), the liquid is pushed by the heated gas through the pipe 9 into the ammonia liquid cold storage chamber 1. As the liquid continuously flows out, the compression chamber 51 is gradually emptied. At this time, the one-way piston 61 starts to move downward under the push of the hot gas and returns to its initial position. When in use, the liquid ammonia in the ammonia liquid cold storage chamber 1 absorbs heat for refrigeration, the control valve 21 is opened, and it enters the storage chamber 3 through the connecting pipe 2.

[0026] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the said principles, the embodiments of the present invention can have any deformation or modification.

Claims

1. A gas-liquid energy storage cooling system, characterized in that, It includes an ammonia liquid cold storage bin (1), one side of which is connected with a connecting pipe (2). The lower end of the connecting pipe (2) is connected with a storage bin (3). One side of the storage bin (3) is provided with a heating bin (4). The heating bin (4) is communicated with the storage bin (3). The upper side of the heating bin (4) is connected with a movable bin (5). The movable bin (5) is communicated with the ammonia liquid cold storage bin (1). An automatic pressurizing device (6) is arranged in the movable bin (5).

2. The gas-liquid energy storage cooling system according to claim 1, wherein: The lower end of the movable bin (5) has a compression bin (51). The pressurizing device (6) includes a one-way piston (61) and a Tesla one-way channel (62) opened on the one-way piston (61). The liquid flow of the Tesla one-way channel (62) flows towards the compression bin (51).

3. The gas-liquid energy storage cooling system according to claim 1, wherein: The heating bin (4) and the storage bin (3) are connected through a pipeline (9). The lower end of the pipeline (9) is communicated with the movable bin (5). The connection part of the pipeline (9) and the heating bin (4) is located on the upper side of the compression bin (51). The upper end of the pipeline (9) is communicated with the upper end of the storage bin (3).

4. The gas-liquid energy storage cooling system according to claim 1, wherein: A one-way device (7) is arranged between the heating bin (4) and the movable bin (5). The two ends of the one-way device (7) are respectively connected with the upper end of the heating bin (4) and the upper end of the movable bin (5).

5. A gas-liquid energy storage cooling system according to claim 1, wherein: A heater (8) is arranged on the lower side of the heating bin (4).

6. The gas-liquid energy storage cooling system according to claim 1, wherein: A plurality of shunt pipes (41) are connected to both sides of the heating bin (4).

7. The gas-liquid energy storage cooling system according to claim 1, wherein: A regulating valve (21) is arranged on the connecting pipe (2).

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