Mother liquor heat exchanger

Abstract

The utility model relates to the technical field of heat exchange equipment, in particular to a mother liquor heat exchanger which comprises a shell, two heat exchange plates and a plurality of heat exchange pipes, the two heat exchange plates are symmetrically arranged in the shell up and down, the heat exchange pipes are used for connecting the two heat exchange plates, and the interior of the shell is sequentially divided into a mother liquor outlet cavity, a heat exchange cavity and a mother liquor inlet cavity from top to bottom through the heat exchange plates. The heat exchange pipe is communicated with the mother liquor outlet cavity and the mother liquor inlet cavity, a mother liquor outlet is formed in the top end of the mother liquor outlet cavity, a mother liquor inlet is formed in the bottom end of the mother liquor inlet cavity, the heat exchange cavity is provided with a plurality of baffle plates, a steam inlet is formed in one side of the heat exchange cavity, and a condensate water outlet is formed in the other side of the heat exchange cavity. The steam inlet is arranged close to the heat exchange plate on the upper side, and the condensate water outlet is arranged close to the heat exchange plate on the lower side. According to the mother liquor heat exchanger, mother liquor does not need to be in contact with the baffle plates, the baffle plates are not prone to scabbing, the cleaning time of the mother liquor heat exchanger is shortened, and use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange equipment technology, specifically a mother liquor heat exchanger. Background Technology

[0002] In the production of soda ash, scaling on the shell side of the mother liquor heat exchanger easily leads to reduced heat exchange efficiency and difficulties in handling excess mother liquor, severely affecting the normal production of soda ash. Therefore, Chinese Patent CN220982021U discloses a mother liquor heat exchanger, comprising: a shell side with a connecting pipe for introducing mother liquor to exchange heat with the liquid in the tube side; multiple baffles disposed within the shell side; a water inlet pipe connected to the connecting pipe for introducing wash water into the shell side; a steam pipe connected to the connecting pipe for introducing steam into the shell side to heat the wash water; and an air inlet pipe connected to the connecting pipe for introducing gas into the shell side for pressurization. This mother liquor heat exchanger can completely eliminate scaling on the shell side of the mother liquor heat exchanger.

[0003] However, in practical applications, the above-mentioned mother liquor heat exchanger still has the following shortcomings: because the baffle plate needs to be in direct contact with the mother liquor, the baffle plate is very easy to form scale, and the cleaning process of the mother liquor heat exchanger requires cleaning multiple layers of baffle plates, which makes the cleaning process of the mother liquor heat exchanger time-consuming and inconvenient to use. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned shortcomings by providing a mother liquor heat exchanger that eliminates the need for the mother liquor to contact the baffle plate, prevents scale buildup on the baffle plate, shortens the cleaning time of the mother liquor heat exchanger, and makes it more convenient to use.

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

[0006] A mother liquor heat exchanger includes a housing, two heat exchange plates symmetrically arranged above and below the housing, and multiple heat exchange tubes connecting the two heat exchange plates. The heat exchange plates divide the interior of the housing into a mother liquor outlet chamber, a heat exchange chamber, and a mother liquor inlet chamber from top to bottom. The heat exchange tubes connect the mother liquor outlet chamber and the mother liquor inlet chamber. A mother liquor outlet is provided at the top of the mother liquor outlet chamber, and a mother liquor inlet is provided at the bottom of the mother liquor inlet chamber. The heat exchange chamber is provided with multiple baffles. A steam inlet is provided on one side of the heat exchange chamber, and a condensate outlet is provided on the other side of the heat exchange chamber. The steam inlet is located near the upper heat exchange plate, and the condensate outlet is located near the lower heat exchange plate.

[0007] Furthermore, the outer edge of the baffle plate is provided with a notch, and the notches on two adjacent baffle plates face opposite directions.

[0008] Furthermore, the outer casing is provided with multiple spacer tubes, which are used to install baffles.

[0009] Furthermore, an anti-impact plate is fixed inside the mother liquor inlet, and the anti-impact plate is positioned directly opposite the mother liquor inlet.

[0010] Furthermore, connecting flanges are respectively provided on the mother liquor inlet and mother liquor outlet.

[0011] Furthermore, pressure detection ports and temperature detection ports are provided on both sides of the heat exchange chamber, which are used to install pressure gauges and thermometers.

[0012] The beneficial effects of this utility model are:

[0013] In practical applications, high-pressure hot steam enters the heat exchange chamber through the steam inlet, is deflected by multiple baffles, and condenses into water after heat exchange with multiple heat exchange tubes, exiting from the condensate outlet. Simultaneously, the mother liquor enters the mother liquor inlet chamber through the mother liquor inlet, passes through multiple heat exchange tubes, enters the mother liquor outlet chamber, and is then discharged from the mother liquor outlet. When cleaning the heat exchanger is required, high-pressure cleaning water is injected through the mother liquor inlet. As the cleaning water flows through the mother liquor inlet chamber, heat exchange tubes, mother liquor outlet chamber, and mother liquor outlet, it cleans the scale buildup inside the mother liquor heat exchanger. This invention eliminates the need for the mother liquor to contact the baffles, reducing the likelihood of scale buildup on the baffles, shortening the cleaning time of the mother liquor heat exchanger, and making it more convenient to use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is a top view of the baffle plate in this utility model;

[0017] Reference numerals: 1. Outer shell; 11. Mother liquor outlet; 12. Heat exchange chamber; 13. Mother liquor inlet; 131. Anti-impact plate; 14. Mother liquor outlet; 15. Steam inlet; 16. Condensate outlet; 17. Spacing tube; 18. Pressure detection port; 19. Temperature detection port; 110. Heat exchange plate; 2. Heat exchange tube; 3. Baffle plate; 4. Notch; 41. Detailed Implementation

[0018] like Figure 1 , Figure 2 and Figure 3As shown, a mother liquor heat exchanger includes a housing 1, two heat exchange plates 2 symmetrically arranged inside the housing 1, and multiple heat exchange tubes 3 connecting the two heat exchange plates 2. The heat exchange plates 2 divide the interior of the housing 1 from top to bottom into a mother liquor outlet chamber 11, a heat exchange chamber 12, and a mother liquor inlet chamber 13. The heat exchange tubes 3 connect the mother liquor outlet chamber 11 and the mother liquor inlet chamber 13. A mother liquor outlet 14 is provided at the top of the mother liquor outlet chamber 11, and a mother liquor inlet 15 is provided at the bottom of the mother liquor inlet chamber 13. The heat exchange chamber 12 is provided with multiple baffles 4. A steam inlet 16 is provided on one side of the heat exchange chamber 12, and a condensate outlet 17 is provided on the other side of the heat exchange chamber 12. The steam inlet 16 is located near the upper heat exchange plate 2, and the condensate outlet 17 is located near the lower heat exchange plate 2.

[0019] In use, high-pressure hot steam enters the heat exchange chamber 12 through the steam inlet 16, is deflected by multiple baffles 4, and condenses into water after heat exchange with multiple heat exchange tubes 3. The water is then discharged from the condensate outlet 17. Simultaneously, the mother liquor enters the mother liquor inlet chamber 13 through the mother liquor inlet 15, passes through multiple heat exchange tubes 3, enters the mother liquor outlet chamber 11, and is discharged from the mother liquor outlet 14. When the heat exchanger needs cleaning, high-pressure cleaning water is injected through the mother liquor inlet 15. As the cleaning water flows through the mother liquor inlet chamber 13, the heat exchange tubes 3, the mother liquor outlet chamber 11, and the mother liquor outlet 14, it cleans the scale buildup inside the mother liquor heat exchanger. This invention allows the mother liquor to avoid contact with the baffles 4, making the baffles 4 less prone to scaling, shortening the cleaning time of the mother liquor heat exchanger, and making it more convenient to use.

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the outer edge of the baffle plate 4 is provided with a notch 41, and the notches 41 on two adjacent baffle plates 4 face opposite directions. In this embodiment, when the notches 41 on two adjacent baffle plates 4 face opposite directions, the hot steam above the upper baffle plate 4 needs to flow to the notch 41 on the left side of the upper baffle plate 4 before it can continue to flow downwards, and the hot steam above the lower baffle plate 4 needs to flow to the notch 41 on the right side of the lower baffle plate 4 before it can continue to flow downwards. This prolongs the heat exchange time of the hot steam in the heat exchange chamber 12 and improves the heat exchange effect with the heat exchange tube 3.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, multiple spacer tubes 18 are provided inside the outer casing 1. The spacer tubes 18 are used to install the baffle plate 4. In this embodiment, the height of the baffle plate 4 can be fixed by the spacer tubes 18.

[0022] like Figure 1 , Figure 2 and Figure 3As shown, an anti-impact plate 131 is fixed inside the mother liquor inlet chamber 13, and the anti-impact plate 131 is positioned directly opposite the mother liquor inlet 15. In this embodiment, the anti-impact plate 131 can effectively reduce the stress when the mother liquor enters, so that the mother liquor can enter each heat exchange tube 3 evenly.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, connecting flanges are respectively provided on the mother liquor inlet 15 and the mother liquor outlet 14; in this embodiment, the connecting flanges make it easier to install and remove the heat exchanger.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, pressure detection ports 19 and temperature detection ports 110 are also provided on both sides of the heat exchange cavity 12. The pressure detection ports 19 and temperature detection ports 110 are used to install pressure gauges and thermometers. In this embodiment, the temperature and pressure inside the heat exchange cavity 12 can be monitored by pressure gauges and thermometers.

[0025] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by this utility model.

Claims

1. A mother liquor heat exchanger, characterized in that: Includes an outer shell (1), two heat exchange plates (2) symmetrically arranged inside the outer shell (1), and multiple heat exchange tubes (3) for connecting the two heat exchange plates (2). The heat exchange plates (2) divide the interior of the outer shell (1) from top to bottom into a mother liquor outlet chamber (11), a heat exchange chamber (12), and a mother liquor inlet chamber (13). The heat exchange tubes (3) connect the mother liquor outlet chamber (11) and the mother liquor inlet chamber (13). The top of the mother liquor outlet chamber (11) is provided with There is a mother liquor outlet (14), and a mother liquor inlet (15) is provided at the bottom of the mother liquor inlet chamber (13). The heat exchange chamber (12) is provided with multiple baffles (4). A steam inlet (16) is provided on one side of the heat exchange chamber (12), and a condensate outlet (17) is provided on the other side of the heat exchange chamber (12). The steam inlet (16) is located near the upper heat exchange plate (2), and the condensate outlet (17) is located near the lower heat exchange plate (2).

2. The mother liquor heat exchanger according to claim 1, characterized in that, The outer edge of the baffle (4) is provided with a notch (41), and the notches (41) on two adjacent baffles (4) face opposite directions.

3. A mother liquor heat exchanger according to claim 1, characterized in that, The outer casing (1) is provided with a plurality of spacer tubes (18), which are used to install baffles (4).

4. A mother liquor heat exchanger according to claim 1, characterized in that, An anti-impact plate (131) is fixed inside the mother liquor inlet cavity (13), and the anti-impact plate (131) is positioned directly opposite the mother liquor inlet (15).

5. A mother liquor heat exchanger according to claim 1, characterized in that, The mother liquor inlet (15) and mother liquor outlet (14) are respectively provided with connecting flanges.

6. A mother liquor heat exchanger according to claim 1, characterized in that, The heat exchange chamber (12) is also provided with pressure detection ports (19) and temperature detection ports (110) on both sides, and the pressure detection ports (19) and temperature detection ports (110) are used to install pressure gauges and thermometers.

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