A new type of vertical flash tank

Abstract

The utility model discloses a novel vertical flash tank relates to vertical flash tank technical field, and it aims at solving the problem that the uniform separation of gas and liquid in the cylinder must be ensured, and the cylinder must be left enough liquid phase and gas phase space, and the proportion is usually 1:3, namely 25% liquid phase space 75% gas phase space, which leads to the problem that the cylinder must select larger, and its technical scheme main points are including the flash tank body, the installation base is fixedly connected with the flash tank body lower extreme, the flash tank body upper extreme fixedly connected with the head, the head upper extreme fixedly connected with the gas supplementing pipe, the flash tank body left side fixedly connected with the liquid outlet pipe that communicates with the inside of flash tank body, the flash tank body right side fixedly connected with the liquid inlet pipe that communicates with the inside of flash tank body, the liquid inlet pipe lower end face is higher than the liquid outlet pipe upper end face. Reach the simple structure, and the good commonality of spare part can realize the effect of larger scale production.

Description

Technical Field

[0001] This utility model relates to the technical field of novel vertical flash evaporators, and in particular to a novel vertical flash evaporator. Background Technology

[0002] Currently, in the field of industrial refrigeration, heating, and air conditioning, traditional magnetic levitation centrifugal chillers, air-levitation centrifugal chillers, and conventional centrifugal chillers use two types of economizers: plate heat exchangers and cylindrical chillers. Among them, cylindrical chillers are widely used due to their simple structure and convenient operation and control. The most popular cylindrical chiller type is the horizontal flash tank, whose main structure is: the cylinder is placed horizontally, with liquid stored at the bottom and the evaporated gas at the top.

[0003] The existing technical solutions described above have the following drawbacks: 1. To ensure uniform separation of gas and liquid inside the cylinder, the cylinder must have sufficient liquid and gas phase space, typically in a ratio of 1:3, i.e., 25% liquid phase space and 75% gas phase space. This necessitates selecting a larger cylinder. 2. A larger cylinder increases the refrigerant charge to ensure the bottom remains liquid, increasing costs and making flash tank control more difficult. 3. To ensure the exhaust gas is free of liquid and prevent liquid carryover during gas replenishment, numerous baffles are added internally. These baffles cause the gas-liquid mixture to deflect and separate, leading to increased suction pressure loss and reduced unit performance. Utility Model Content

[0004] The purpose of this invention is to provide a new type of vertical flash tank with a larger internal gas-liquid separation space.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A novel vertical flash evaporator includes a flash evaporator body, a mounting base fixedly connected to the lower end of the flash evaporator body, a head fixedly connected to the upper end of the flash evaporator body, a gas supply pipe fixedly connected to the upper end of the head, a liquid outlet pipe connected to the interior of the flash evaporator body fixedly connected to the left side of the flash evaporator body, and a liquid inlet pipe connected to the interior of the flash evaporator body fixedly connected to the right side of the flash evaporator body, with the lower end face of the liquid inlet pipe higher than the upper end face of the liquid outlet pipe.

[0007] Furthermore, the liquid inlet pipe has an N-shaped structure, and a baffle plate is fixedly connected inside the flash tank. The baffle plate is located at the lower end of the liquid inlet pipe, which is a refrigerant inlet pipe.

[0008] Furthermore, one end of the liquid outlet pipe extends through the outside of the flash tank and into the inside of the flash tank, while the other end of the liquid outlet pipe extends to the bottom of the flash tank.

[0009] Furthermore, a filter screen is fixedly connected inside the flash tank, and the filter screen is located above the liquid inlet pipe.

[0010] Furthermore, a connecting flange is fixedly connected to the outside of the air supply pipe, and a mounting flange adapted to the connecting flange is detachably connected to the upper end of the connecting flange. The mounting flange and the connecting flange are detachably connected by screws and nuts.

[0011] In summary, the beneficial technical effects of this utility model are as follows:

[0012] 1. Compared with the traditional horizontal flash tank, this vertical flash tank has a larger internal gas-liquid separation space, which allows for a smaller cylinder size, less refrigerant charge, and less liquid fluctuation at the bottom, ensuring that the supply pipe is always filled with liquid.

[0013] 2. This vertical flash tank is prone to cross-contamination within the pipes. However, the addition of a gas phase space and distance at the top, along with a filter screen, makes it less likely for liquid to be carried over during gas replenishment. Furthermore, this new type of tank has a simple structure, good component versatility, and can achieve large-scale production. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the gas-liquid flow direction structure of this utility model.

[0017] In the diagram, 1 is the flash tank body; 2 is the mounting base; 3 is the gas supply pipe; 4 is the end cap; 5 is the liquid outlet pipe; 6 is the liquid inlet pipe; 11 is the liquid baffle; 12 is the filter screen; 31 is the connecting flange; and 32 is the mounting flange. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Reference Figure 1 A novel vertical flash evaporator includes a flash evaporator body 1, a mounting base 2 fixedly connected to the lower end of the flash evaporator body 1, a head 4 fixedly connected to the upper end of the flash evaporator body 1, a gas supply pipe 3 fixedly connected to the upper end of the head 4, a liquid outlet pipe 5 fixedly connected to the left side of the flash evaporator body 1 and communicating with the interior of the flash evaporator body 1, and a liquid inlet pipe 6 fixedly connected to the right side of the flash evaporator body 1 and communicating with the interior of the flash evaporator body 1. The lower end of the liquid inlet pipe 6 is higher than the upper end of the liquid outlet pipe 5. The gas and liquid spaces inside the flash evaporator are clearly separated and separated by a filter screen 12, thereby increasing the gas phase space and gas phase distance at the top. The addition of the filter screen 12 makes it less likely for liquid to be carried over during gas supply and less likely for cross-contamination to occur.

[0020] Reference Figure 2 The inlet pipe 6 has an N-shaped structure. A baffle plate 11 is fixedly connected inside the flash tank 1. The baffle plate 11 is located at the lower end of the inlet pipe 6. The inlet pipe 6 is the refrigerant inlet pipe. The N-shaped structure of the inlet pipe 6 facilitates the injection of refrigerant and ensures that the refrigerant flows to the corresponding position through the baffle plate 11, ensuring normal operation of the whole system. One end of the outlet pipe 5 passes through the outside of the flash tank 1 and extends into the inside of the flash tank 1. The other end of the outlet pipe 5 extends to the bottom of the flash tank 1.

[0021] Reference Figure 3 A filter screen 12 is fixedly connected inside the flash tank 1. The filter screen 12 is located above the liquid inlet pipe 6. The filter screen 12 has a good filtration effect and fully separates gas and liquid, which increases the overall heat exchange effect. A connecting flange 31 is fixedly connected to the outside of the gas supply pipe 3. A mounting flange 32 that is compatible with the connecting flange 31 is detachably connected to the upper end of the connecting flange 31. The mounting flange 32 and the connecting flange 31 are detachably connected by screws and nuts. The connection between the mounting flange 32 and the connecting flange 31 by screws and nuts facilitates the connection of the pipeline, so as to facilitate the connection of the whole system with the compressor and increase the overall flexibility.

[0022] The implementation principle of this embodiment is as follows: First, the liquid inside the whole is discharged to the evaporator through the liquid outlet pipe 5 for evaporation and heat dissipation. The liquid fluctuation is smaller, so that the liquid supply pipe is full of liquid and it is not easy to generate gas inside the pipe. At the same time, the coolant is injected through the liquid inlet pipe 6 to achieve circulation. The gas phase space and gas phase distance are increased at the top, and the filter screen 12 is added, so it is not easy to form liquid carrying in the gas. At the same time, the mounting flange 32 and the connecting flange 31 are connected by screws and nuts, which facilitates the connection of the pipes and the connection of the whole to the compressor, increasing the overall flexibility. This structure is simple, the parts are versatile, and large-scale production can be realized.

[0023] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A novel vertical flash evaporator, comprising a flash evaporator body (1), characterized in that: The flash tank (1) is fixedly connected to a mounting base (2) at its lower end, and a head (4) is fixedly connected to the upper end of the flash tank (1). A gas supply pipe (3) is fixedly connected to the upper end of the head (4). A liquid outlet pipe (5) that communicates with the interior of the flash tank (1) is fixedly connected to the left side of the flash tank (1). A liquid inlet pipe (6) that communicates with the interior of the flash tank (1) is fixedly connected to the right side of the flash tank (1). The lower end face of the liquid inlet pipe (6) is higher than the upper end face of the liquid outlet pipe (5).

2. The novel vertical flash evaporator according to claim 1, characterized in that: The liquid inlet pipe (6) has an N-shaped structure. A baffle plate (11) is fixedly connected inside the flash tank (1). The baffle plate (11) is located at the lower end of the liquid inlet pipe (6). The liquid inlet pipe (6) is a refrigerant inlet pipe.

3. The novel vertical flash evaporator according to claim 1, characterized in that: One end of the outlet pipe (5) extends through the outside of the flash tank (1) to the inside of the flash tank (1), and the other end of the outlet pipe (5) extends to the bottom of the flash tank (1).

4. The novel vertical flash evaporator according to claim 1, characterized in that: A filter screen (12) is fixedly connected inside the flash tank (1), and the filter screen (12) is located above the liquid inlet pipe (6).

5. The novel vertical flash evaporator according to claim 1, characterized in that: The outer side of the air supply pipe (3) is fixedly connected to a connecting flange (31). The upper end of the connecting flange (31) is detachably connected to an installation flange (32) that is compatible with the connecting flange (31). The installation flange (32) and the connecting flange (31) are detachably connected by screws and nuts.

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