A flash cooler

Abstract

The utility model relates to flash cooler technical field, concretely is a kind of flash cooler, including shell, inlet pipe and discharging mechanism;Discharging mechanism is arranged at shell bottom end;Discharging mechanism includes connecting cover and buffer tank;Connecting cover is connected with shell bottom end, and the shell is opened with the discharging port corresponding with connecting cover;Buffer tank top end is provided with short tube, and short tube is connected with the output end of connecting cover, and the side wall on short tube is provided with balance pipe, and the bottom end of buffer tank is connected with discharging pipe, and electric valve and check valve are all set on discharging pipe and short tube.The utility model is set by shell height, utilizes the liquid level difference of shell and next process equipment, makes high-temperature material rely on gravity self-flow discharge, replaces material beating pump, and energy consumption is reduced;Through discharging mechanism, it is convenient to actively discharge fine slag gathered in the bottom end inside shell, avoid fine slag accumulation to interfere with material discharge, extend the cleaning cycle of shell.

Description

Technical Field

[0001] This utility model relates to the field of flash cooler technology, specifically to a flash cooler. Background Technology

[0002] In current industrial production and refrigeration applications, flash coolers play a crucial role as key equipment for achieving efficient cooling, gas-liquid separation, and energy optimization. The principle of a flash cooler is that a high-temperature product suddenly enters a high-vacuum chamber. Due to the high pressure, the solution in the product rapidly expands and vaporizes, causing more solution to flash into a vapor state, achieving cooling and concentration under high vacuum.

[0003] Chinese Patent Publication No. CN112973163B discloses a high-level flash cooler for wet-process phosphoric acid, which solves the problems of easy material boiling, easy material accumulation, difficult cleaning, and high investment cost in existing high-level flash coolers. The technical solution includes a shell with an inlet pipe, an outlet pipe, and a gas outlet. The bottom surface of the shell is inclined. The inlet and outlet pipes are located on the side wall of the shell at the lower end of the inclined surface. A partition is provided between the inlet and outlet pipes at the bottom of the shell. The rear end of the partition is fixed to the side wall of the shell at the lower end of the inclined surface, and there is a gap between the front end and the side wall of the shell at the upper end of the inclined surface. This invention has an extremely simple structure, is easy to operate, has low production and investment costs, effectively reduces the occurrence of material accumulation and blockage problems, has high safety and reliability, and provides good flash cooling effect.

[0004] However, the above-mentioned publicly available solutions have the following shortcomings: Although the risk of material accumulation is reduced by setting up inclined planes and baffles, fine particles of slag in the cooled material may slowly deposit at the lower end of the inclined plane, the gap between the baffles, or the inlet of the discharge pipe. The fine slag is difficult to be completely carried out, and long-term accumulation may cause blockage of the pipes or gaps, affecting the stability of the equipment. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a flash cooler.

[0006] The technical solution of this utility model is as follows: A flash cooler includes a shell with multiple sets of first reinforcing ribs evenly installed from top to bottom on its outer circumference; a feed pipe disposed on the upper end of the side wall of the shell, and a material distribution mechanism corresponding to the feed pipe disposed on the inner wall of the shell; a discharge mechanism disposed at the bottom end of the shell, the discharge mechanism including a connecting cover connected to the bottom end of the shell, and a slag discharge port corresponding to the connecting cover opened on the shell; and a buffer tank with a short pipe disposed at its top end, the short pipe being connected to the output end of the connecting cover, a balance pipe disposed on the side wall of the short pipe, and a slag discharge pipe connected to the bottom end of the buffer tank, and an electric valve and a check valve disposed on both the slag discharge pipe and the short pipe.

[0007] Preferably, the first reinforcing rib is annular, and multiple sets of second reinforcing ribs are evenly installed on the first reinforcing rib, with the second reinforcing ribs connected to the outer peripheral surface of the shell.

[0008] Preferably, the bottom surface of the housing is inclined, and the inclination angle is set to 15 degrees to 20 degrees.

[0009] Preferably, the connecting cover is provided with a discharge assembly, which consists of a rotating shaft that is connected to the connecting cover by a motor and multiple sets of material-pushing plates evenly installed on the outer circumference of the rotating shaft. The multiple sets of material-pushing plates correspond to the slag discharge port and the connecting cover.

[0010] Preferably, the fabric distribution mechanism includes a distribution pipe connected to the inner wall of the housing, the distribution pipe being annular, the input end of the distribution pipe being connected to the output end of the feed pipe; and a material distribution pipe having multiple sets, the multiple sets of material distribution pipes being evenly connected to the bottom end of the distribution pipe, and the output end of the material distribution pipe being inclined.

[0011] Preferably, multiple sets of buffer seats are evenly installed on the inner wall of the flash evaporation chamber from top to bottom, and an opening is provided in the middle of the buffer seat.

[0012] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects: By raising the shell, this utility model utilizes the liquid level difference between the shell and the next process equipment to allow high-temperature materials to flow out by gravity, replacing the feeding pump and reducing energy consumption; the discharge mechanism facilitates the active discharge of fine slag accumulated at the bottom of the shell, avoiding the accumulation of fine slag from interfering with material discharge and extending the cleaning cycle of the shell; the material distribution mechanism and buffer seat extend the residence time of materials in the flash chamber inside the shell, improving cooling efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the shell of this utility model;

[0015] Figure 3 This is a schematic diagram of the connection between the buffer tank and the shell of this utility model;

[0016] Figure 4 This is a schematic diagram of part A of the present invention.

[0017] Reference numerals: 1. Shell; 101. First reinforcing rib; 102. Second reinforcing rib; 2. Feed pipe; 201. Diverter pipe; 202. Distributor pipe; 203. Buffer seat; 3. Slag discharge port; 301. Connecting cover; 302. Short pipe; 303. Balance pipe; 4. Buffer tank; 401. Slag discharge pipe; 402. Check valve; 403. Electric valve; 5. Rotating shaft; 501. Feeding plate. Detailed Implementation

[0018] Example 1

[0019] like Figures 1 to 4 As shown, the flash cooler proposed in this utility model includes a shell 1, a feed pipe 2, and a discharge mechanism. Multiple sets of first reinforcing ribs 101 are evenly installed from top to bottom on the outer circumference of the shell 1. The top of the shell 1 is provided with a gas outlet and a demister similar to those in the prior art. A discharge pipe is provided at the bottom of the side wall of the shell 1. The specific structure and principle are detailed in the patent with publication number CN112973163B and will not be repeated here. The feed pipe 2 is located at the upper end of the side wall of the shell 1, and a material distribution mechanism corresponding to the feed pipe 2 is provided on the inner wall of the shell 1. The discharge mechanism is located at the bottom of the shell 1.

[0020] It should be noted that a liquid level sensor is installed on the inner wall of the shell 1 to monitor the liquid level in the shell 1 in real time and maintain it at a safe threshold, ensuring stable gravity flow and no risk of flash boiling.

[0021] The discharge mechanism includes a connecting cover 301 and a buffer tank 4; the connecting cover 301 is connected to the bottom end of the shell 1, and the shell 1 has a slag discharge port 3 corresponding to the connecting cover 301; a short pipe 302 is provided at the top of the buffer tank 4, the short pipe 302 is connected to the output end of the connecting cover 301, a balance pipe 303 is provided on the side wall of the short pipe 302, and a slag discharge pipe 401 is connected to the bottom end of the buffer tank 4. An electric valve 403 and a check valve 402 are provided on both the slag discharge pipe 401 and the short pipe 302.

[0022] It should be noted that both the housing 1 and the buffer tank 4 are provided with support legs. The support legs are not shown, but those skilled in the art can clearly understand how to install them for support.

[0023] Furthermore, the first reinforcing rib 101 is designed as a ring, and multiple sets of second reinforcing ribs 102 are evenly installed on the first reinforcing rib 101. The second reinforcing ribs 102 are connected to the outer peripheral surface of the shell 1. By setting the first reinforcing rib 101 and the second reinforcing rib 102, the strength of the shell 1 is improved in the axial and radial directions, avoiding deformation caused by the increase in height, improving the overall strength and stability of the heightened shell 1, and improving the safety of use.

[0024] Furthermore, the bottom surface of the housing 1 is inclined, with an inclination angle of 15 to 20 degrees. Compared with the prior art, increasing the inclination of the bottom surface of the housing 1 ensures that the material flows to the discharge pipe faster under the action of gravity, avoiding stagnation caused by the decrease in flow rate after the height is increased.

[0025] Furthermore, the material distribution mechanism includes a diversion pipe 201 and a material distribution pipe 202; the diversion pipe 201 is connected to the inner wall of the housing 1 through a bracket, the diversion pipe 201 is designed as a ring, and the input end of the diversion pipe 201 is connected to the output end of the feed pipe 2; multiple sets of material distribution pipes 202 are provided, and the multiple sets of material distribution pipes 202 are evenly connected to the bottom end of the diversion pipe 201, and the output end of the material distribution pipe 202 is inclined, with the inclination angle set to 30 degrees-45 degrees, so that the material flows spirally downward along the inner wall of the housing 1, extending the flash evaporation path.

[0026] Furthermore, multiple sets of buffer seats 203 are evenly installed on the inner wall of the flash chamber of the shell 1 from top to bottom. The buffer seat 203 has an opening in the middle to temporarily intercept the downward flowing high-temperature material, thereby increasing the residence time of the high-temperature material in the flash chamber and improving the cooling effect.

[0027] In this embodiment, after the high-temperature material is introduced into the shell 1 through the feed pipe 2, it is first diverted by the diversion pipe 201 so that the high-temperature material is discharged from the multi-component feed pipe 202 towards the inner wall of the shell 1. The high-temperature material flows downward along the inner wall of the shell 1, which makes the high-temperature material evenly distributed and improves the flash evaporation efficiency. The shell 1 is raised, and the liquid level difference between the shell 1 and the next process equipment is used to make the material flow out by gravity, replacing the feed pump and reducing energy consumption. Part of the liquid in the high-temperature material flashes into gas in the flash chamber and is discharged from the gas outlet at the top of the shell 1. By setting multiple sets of buffer seats 203, the material flowing downward along the inner wall of the shell 1 can be temporarily intercepted, prolonging the material residence time and enhancing the cooling effect. The cooled material is discharged from the shell. The material is discharged through the discharge pipe on the side wall of shell 1. When cooling high-temperature materials, some fine slag will accumulate at the bottom inside shell 1. The fine slag is difficult to completely remove. The discharge pipe on the side wall of shell 1 is closed, and the electric valve 403 on the short pipe 302 is opened by the controller. The fine slag accumulated at the bottom inside shell 1 enters the connecting cover 301 through the slag discharge port 3 and then enters the buffer tank 4 through the electric valve 403 for temporary storage, so as to avoid the accumulation of fine slag at the bottom inside shell 1 and extend the cleaning cycle of shell 1. The setting of the balance pipe 303 can avoid the impact of pressure fluctuations inside shell 1 on flash evaporation. When the fine slag buffered in the buffer tank 4 reaches a certain amount, the electric valve 403 on the slag discharge pipe 401 can be opened to discharge the fine slag in the buffer tank 4.

[0028] Example 2

[0029] like Figure 2 and Figure 3As shown, the flash cooler proposed in this utility model, compared with the first embodiment, has a discharge assembly inside the connecting cover 301. The discharge assembly consists of a rotating shaft 5 connected to the connecting cover 301 by a motor and multiple sets of material-pushing plates 501 evenly installed on the outer circumference of the rotating shaft 5. The multiple sets of material-pushing plates 501 correspond to the slag discharge port 3 and the connecting cover 301. The inner wall of the connecting cover 301, the rotating shaft 5 and the surface of the material-pushing plates 501 are all provided with wear-resistant sleeves to reduce the adhesion of fine slag.

[0030] In this embodiment, when the discharge pipe at the bottom of the side wall of the shell 1 is closed and the valve port of the electric valve 403 on the short pipe 302 is opened, the controller starts the motor to drive the rotating shaft 5 to rotate, which in turn drives multiple sets of material-pushing plates 501 to rotate. This can push the fine slag gathered at the bottom of the shell 1 toward the connecting cover 301, assisting the gathered fine slag to be discharged into the buffer tank 4, avoiding blockage and improving the efficiency of active slag discharge.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A flash cooler, characterized in that, include The shell (1) has multiple sets of first reinforcing ribs (101) evenly installed from top to bottom on its outer circumferential surface; The feed pipe (2) is located on the upper end of the side wall of the housing (1), and the inner wall of the housing (1) is provided with a feeding mechanism corresponding to the feed pipe (2); And a discharge mechanism, which is located at the bottom of the housing (1), the discharge mechanism includes A connecting cover (301) is connected to the bottom end of the housing (1), and a slag discharge port (3) corresponding to the connecting cover (301) is provided on the housing (1); And a buffer tank (4), which is provided with a short pipe (302) at its top. The short pipe (302) is connected to the output end of the connecting cover (301). A balance pipe (303) is provided on the side wall of the short pipe (302). A slag discharge pipe (401) is connected to the bottom end of the buffer tank (4). An electric valve (403) and a check valve (402) are provided on both the slag discharge pipe (401) and the short pipe (302).

2. A flash cooler according to claim 1, characterized in that, The first reinforcing rib (101) is annular, and multiple sets of second reinforcing ribs (102) are evenly installed on the first reinforcing rib (101). The second reinforcing ribs (102) are connected to the outer peripheral surface of the shell (1).

3. A flash cooler according to claim 1, characterized in that, The bottom surface of the housing (1) is inclined, and the inclination angle is set to 15 degrees to 20 degrees.

4. A flash cooler according to claim 1, characterized in that, The connecting cover (301) is equipped with a discharge assembly. The discharge assembly consists of a rotating shaft (5) that is connected to the connecting cover (301) by a motor drive and multiple sets of material-pushing plates (501) evenly installed on the outer circumference of the rotating shaft (5). The multiple sets of material-pushing plates (501) correspond to the slag discharge port (3) and the connecting cover (301).

5. A flash cooler according to claim 1, characterized in that, Fabric mechanism includes The diverter pipe (201) is connected to the inner wall of the housing (1). The diverter pipe (201) is designed as a ring. The input end of the diverter pipe (201) is connected to the output end of the feed pipe (2). And a distribution pipe (202), which is provided in multiple sets, with multiple distribution pipes (202) evenly connected to the bottom end of the distribution pipe (201), and the output end of the distribution pipe (202) is set at an angle.

6. A flash cooler according to claim 5, characterized in that, Multiple sets of buffer seats (203) are evenly installed on the inner wall of the flash chamber of the shell (1) from top to bottom, and an opening is provided in the middle of the buffer seat (203).

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