MVR (Mechanical Vapor Recompression) sucrose crystallization steam circulating device
By designing the MVR sucrose crystallization steam circulation device, the steam in the vacuum crystallization tank is cleaned, dried, and heated and reused for heating, which solves the problem of steam energy not being recycled and achieves efficient use of energy and cost reduction.
Patent Information
- Application Number
- CN202422975327.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-12-04
AI Technical Summary
The steam energy in existing vacuum crystallization tanks has not been effectively recycled, resulting in energy waste and increased energy consumption costs in the sugar production process, which violates the concept of green and low-carbon production.
A MVR sucrose crystallization steam circulation device is designed, and the steam is cleaned, dried, heated and re-entered into the heating chamber for heating through a steam compressor and cleaning mechanism in the vacuum crystallization tank to realize the recycling and utilization of steam.
It reduces heat loss, improves energy utilization efficiency, reduces energy consumption costs in the sugar production process, and is in line with the concept of green and low-carbon production.
Smart Images
Figure CN223268666U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sucrose production equipment, in particular to an MVR sucrose crystallization steam circulation device. Background Art
[0002] Syrup crystallization is a core step in the sugarcane sugar production process, and its efficiency and quality are directly linked to the market competitiveness of the final sugar product. During this stage, the syrup is carefully conditioned and then sent to a specially designed vacuum crystallizer for cooling and crystallization. This is a critical step in ensuring uniform crystal growth, beautiful morphology, and improving sucrose purity.
[0003] Existing vacuum crystallization tank technology not only utilizes a vacuum environment to lower the boiling point of the syrup and accelerate water evaporation, but also incorporates a clever built-in heating chamber system to precisely control the temperature within the tank, preventing drastic temperature fluctuations caused by rapid cooling of the syrup. Uncontrolled temperature fluctuations can severely affect the nucleation rate and growth morphology of the crystals, potentially resulting in uneven crystal size and morphological deformities, which in turn affects the quality and taste of the sugar product.
[0004] However, the currently commonly used heating method, which directly introduces hot steam into the heating chamber, while effectively maintaining the syrup's desired temperature range, results in significant energy waste. Specifically, as the syrup gradually cools under vacuum and releases its own hot steam, this energy-rich steam is often simply discharged from the system, failing to be effectively recycled. This heat loss not only increases the energy cost of the sugar-making process but also violates the current green and low-carbon production philosophy. Summary of the Invention
[0005] The purpose of the utility model is to address the deficiencies of the above existing technologies and provide an MVR sucrose crystallization steam circulation device, which achieves the purpose of utilizing the steam generated by the syrup in the crystallization chamber of the vacuum crystallizer to be pressurized and heated, and then passing it into the heating chamber of the vacuum crystallizer for heating.
[0006] The utility model provides an MVR sucrose crystallization steam circulation device, which is characterized by comprising a vacuum crystallization tank, a cleaning mechanism, a gas-liquid separator and a steam compressor, wherein the upper air outlet of the vacuum crystallization tank is connected to the air inlet pipe of the cleaning mechanism through a connecting pipe, the air outlet pipe at the upper end of the cleaning mechanism is connected to the air inlet of the gas-liquid separator through a connecting pipe, the air outlet of the gas-liquid separator is connected to the air inlet of the steam compressor through a connecting pipe, the steam compressor is connected to the air inlet of the heating chamber of the vacuum crystallization tank, and the air outlet of the vacuum crystallization tank is connected to the water seal tank through a connecting pipe.
[0007] Furthermore, the steam compressor includes a first steam compressor and a second steam compressor, the air outlet of the gas-liquid separator is connected to the air inlet of the first steam compressor through a connecting pipe, the air outlet of the first steam compressor is connected to the air inlet of the second steam compressor through a connecting pipe, and the air outlet of the second steam compressor is connected to the air inlet of the heating chamber of the vacuum crystallization tank.
[0008] Furthermore, the cleaning mechanism includes an outer cylinder body, an atomizing nozzle and a spray pipe. The upper end of the outer cylinder body is provided with an air outlet pipe, the side wall of the outer cylinder body is provided with an air inlet pipe, and the cylinder body of the outer cylinder body is provided with an atomizing nozzle. The atomizing nozzle is installed in the cylinder body of the outer cylinder body, and the atomizing nozzle is located below the air outlet pipe of the outer cylinder body and above the air inlet pipe. The atomizing nozzle is connected to the spray pipe, and the spray pipe passes through the side wall of the outer cylinder body. The lower end of the outer cylinder body is provided with a liquid outlet pipe, and the liquid outlet pipe is connected to the liquid inlet of the first centrifugal pump through a first valve and a connecting pipe. The liquid inlet of the first centrifugal pump is connected to the water source through a second valve and a connecting pipe. The liquid outlet of the first centrifugal pump is connected to the spray pipe through a third valve and a connecting pipe, and the liquid outlet of the first centrifugal pump is connected to the sewage pipe through a fourth valve.
[0009] Furthermore, the spray pipe includes a first spray pipe and a second spray pipe, and multiple first spray pipes and second spray pipes are arranged in the outer cylinder. Multiple first spray pipes are located in the same plane position, multiple second spray pipes are located in the same plane position, the first spray pipe is located above the second spray pipe, and the first spray pipe and the second spray pipe are respectively provided with multiple evenly distributed atomizing nozzles.
[0010] Furthermore, the first spray pipe and the second spray pipe are arranged alternately, the first spray pipe is connected to the liquid outlet of the first centrifugal pump through a third valve and a connecting pipe, the drain outlet of the gas-liquid separator is connected to the water inlet of the second centrifugal pump through a connecting pipe, the liquid outlets of the first steam compressor and the second steam compressor are respectively connected to the liquid inlet of the second centrifugal pump through connecting pipes, and the second spray pipe is connected to the liquid outlet of the second centrifugal pump through a connecting pipe.
[0011] Compared with the prior art, the present invention has the following outstanding beneficial effects:
[0012] 1. The utility model can clean and dry the steam discharged from the vacuum crystallization tank, compress it and heat it, and then re-introduce it into the heating chamber of the vacuum crystallization tank to heat and keep the syrup warm, recycle the steam and reduce heat loss;
[0013] 2. The cleaning mechanism of the present invention has a first spray pipe and a second spray pipe. The first spray pipe is connected to the water source through a first centrifugal pump, and the second spray pipe is connected to the gas-liquid separator and the steam compressor through a second centrifugal pump. The water discharged from the gas-liquid separator and the steam compressor is recycled and reused to clean the steam once, and then the first spray pipe is used to clean the steam for a second time, which not only makes the steam cleaning cleaner, but also can recycle water resources. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural diagram of the utility model;
[0015] Figure 2 It is a structural diagram of the cleaning mechanism of the utility model;
[0016] 1. Vacuum crystallization tank, 2. Cleaning mechanism, 201. Outer cylinder, 202. Second spray pipe, 203. First spray pipe, 204. Atomizing nozzle, 205. Air outlet pipe, 206. Air inlet pipe, 207. Liquid outlet pipe, 3. First valve, 4. Second valve, 5. First centrifugal pump, 6. Third valve, 7. Fourth valve, 8. Second centrifugal pump, 9. Gas-liquid separator, 10. First steam compressor, 11. Second steam compressor, 12. Water seal tank. DETAILED DESCRIPTION
[0017] The present invention will be further described below with reference to the accompanying drawings and specific implementation methods.
[0018] like Figure 1 As shown, the utility model includes a vacuum crystallization tank 1, a cleaning mechanism 2, a gas-liquid separator 9 and a steam compressor.
[0019] The upper end air outlet of the vacuum crystallization tank 1 is connected to the air inlet pipe 206 of the cleaning mechanism 2 through a connecting pipe, the air outlet pipe 205 at the upper end of the cleaning mechanism 2 is connected to the air inlet of the gas-liquid separator 9 through a connecting pipe, the air outlet of the gas-liquid separator 9 is connected to the air inlet of the steam compressor through a connecting pipe, the steam compressor is connected to the air inlet of the heating chamber of the vacuum crystallization tank 1, and the air outlet of the vacuum crystallization tank 1 is connected to the water seal tank 12 through a connecting pipe.
[0020] The steam compressor includes a first steam compressor 10 and a second steam compressor 11. The air outlet of the gas-liquid separator 9 is connected to the air inlet of the first steam compressor 10 through a connecting pipe. The air outlet of the first steam compressor 10 is connected to the air inlet of the second steam compressor 11 through a connecting pipe. The air outlet of the second steam compressor 11 is connected to the air inlet of the heating chamber of the vacuum crystallization tank 1.
[0021] like Figure 2As shown, the cleaning mechanism 2 includes an outer cylinder 201, an atomizing nozzle 204 and a spray pipe. An air outlet pipe 205 is provided at the upper end of the outer cylinder 201, and an air inlet pipe 206 is provided on the side wall of the outer cylinder 201. An atomizing nozzle 204 is installed in the cylinder of the outer cylinder 201, and the atomizing nozzle 204 is located below the air outlet pipe 205 of the outer cylinder 201 and above the air inlet pipe 206. The atomizing nozzle 204 is connected to the spray pipe, and the spray pipe passes through the side wall of the outer cylinder 201. A liquid outlet pipe 207 is provided at the lower end of the outer cylinder 201. The liquid outlet pipe 207 is connected to the liquid inlet of the first centrifugal pump 5 through the first valve 3 and the connecting pipe. The liquid inlet of the first centrifugal pump 5 is connected to the water source through the second valve 4 and the connecting pipe. The liquid outlet of the first centrifugal pump 5 is connected to the spray pipe through the third valve 6 and the connecting pipe. The liquid outlet of the first centrifugal pump 5 is connected to the sewage pipe through the fourth valve 7.
[0022] In the optimization scheme, the spray pipe includes a first spray pipe 203 and a second spray pipe 202, and multiple first spray pipes 203 and second spray pipes 202 are arranged in the outer cylinder 201. Multiple first spray pipes 203 are located in the same plane position, and multiple second spray pipes 202 are located in the same plane position. The first spray pipe 203 is located above the second spray pipe 202, and the first spray pipe 203 and the second spray pipe 202 are respectively provided with multiple evenly distributed atomizing nozzles 204. The first spray pipe 203 and the second spray pipe 202 are arranged alternately, and the first spray pipe 203 is connected to the liquid outlet of the first centrifugal pump 5 through the third valve 6 and the connecting pipe, and the second spray pipe 202 is connected to the liquid outlet of the second centrifugal pump 8 through the connecting pipe.
[0023] The drain port of the gas-liquid separator 9 is connected to the liquid inlet of the second centrifugal pump 8 through a connecting pipe, and the water outlet of the second centrifugal pump 8 is connected to the spray pipe through a connecting pipe.
[0024] The liquid outlets of the first steam compressor 10 and the second steam compressor 11 are connected to the liquid inlet of the second centrifugal pump 8 through connecting pipes respectively.
[0025] The operating process is as follows: when using the present invention, the 60° steam emitted by the syrup in the vacuum crystallization tank 1 enters the cleaning mechanism 2, the second valve 4 and the third valve 6 are opened, and the first centrifugal pump 5 injects water into the spray pipe, which is sprayed out by the atomizing nozzle 204 to clean the steam. The cleaned steam enters the gas-liquid separator 9 for gas-liquid separation, and the separated steam enters the first steam compressor 10 and the second steam compressor 11 in turn. After compression treatment by the first steam compressor 10 and the second steam compressor 11, the steam temperature is raised to 100° and then passed into the heating chamber of the vacuum crystallization tank 1; when it is necessary to discharge the waste water in the outer cylinder 201 of the cleaning mechanism 2, the first valve 3 and the fourth valve 7 are opened, the second valve 4 and the third valve 6 are closed, and the first centrifugal pump 5 is used to discharge the waste water from the sewage pipe.
[0026] It should be noted that the specific embodiments of the present invention have been described in detail. For those skilled in the art, various obvious changes to the present invention without departing from the spirit and scope of the present invention are within the scope of protection of the present invention.
Claims
1. An MVR sucrose crystallization steam circulation device, characterized by: The invention comprises a vacuum crystallization tank (1), a cleaning mechanism (2), a gas-liquid separator (9) and a steam compressor, wherein the upper air outlet of the vacuum crystallization tank (1) is connected to the air inlet pipe (206) of the cleaning mechanism (2) through a connecting pipe, the air outlet pipe (205) at the upper end of the cleaning mechanism (2) is connected to the air inlet of the gas-liquid separator (9) through a connecting pipe, the air outlet of the gas-liquid separator (9) is connected to the air inlet of the steam compressor through a connecting pipe, the steam compressor is connected to the air inlet of the heating chamber of the vacuum crystallization tank (1), and the air outlet of the vacuum crystallization tank (1) is connected to the water seal tank (12) through a connecting pipe.
2. The MVR sucrose crystallization steam circulation device according to claim 1, characterized in that: The steam compressor comprises a first steam compressor (10) and a second steam compressor (11); the gas outlet of the gas-liquid separator (9) is connected to the gas inlet of the first steam compressor (10) through a connecting pipe; the gas outlet of the first steam compressor (10) is connected to the gas inlet of the second steam compressor (11) through a connecting pipe; and the gas outlet of the second steam compressor (11) is connected to the gas inlet of the heating chamber of the vacuum crystallization tank (1).
3. The MVR sucrose crystallization steam circulation device according to claim 1, characterized in that: The cleaning mechanism (2) comprises an outer cylinder (201), an atomizing nozzle (204) and a spray pipe. An air outlet pipe (205) is provided at the upper end of the outer cylinder (201), an air inlet pipe (206) is provided on the side wall of the outer cylinder (201), and an atomizing nozzle (204) is installed in the cylinder of the outer cylinder (201). The atomizing nozzle (204) is located below the air outlet pipe (205) of the outer cylinder (201) and above the air inlet pipe (206). The atomizing nozzle (204) is connected to the spray pipe, and the spray pipe The shower pipe passes through the side wall of the outer cylinder (201), and a liquid outlet pipe (207) is provided at the lower end of the outer cylinder (201). The liquid outlet pipe (207) is connected to the liquid inlet of the first centrifugal pump (5) through the first valve (3) and the connecting pipe. The liquid inlet of the first centrifugal pump (5) is connected to the water source through the second valve (4) and the connecting pipe. The liquid outlet of the first centrifugal pump (5) is connected to the shower pipe through the third valve (6) and the connecting pipe. The liquid outlet of the first centrifugal pump (5) is connected to the sewage pipe through the fourth valve (7).
4. The MVR sucrose crystallization steam circulation device according to claim 3, characterized in that: The spray pipe comprises a first spray pipe (203) and a second spray pipe (202); a plurality of first spray pipes (203) and a second spray pipe (202) are arranged in the outer cylinder (201); the plurality of first spray pipes (203) are located in the same plane; the plurality of second spray pipes (202) are located in the same plane; the first spray pipe (203) is located above the second spray pipe (202); and a plurality of evenly distributed atomizing nozzles (204) are respectively provided on the first spray pipe (203) and the second spray pipe (202).
5. The MVR sucrose crystallization steam circulation device according to claim 4, characterized in that: The first spray pipe (203) and the second spray pipe (202) are arranged in a staggered manner. The first spray pipe (203) is connected to the liquid outlet of the first centrifugal pump (5) through the third valve (6) and the connecting pipe. The drain outlet of the gas-liquid separator (9) is connected to the water inlet of the second centrifugal pump (8) through the connecting pipe. The liquid outlets of the first steam compressor (10) and the second steam compressor (11) are respectively connected to the liquid inlet of the second centrifugal pump (8) through the connecting pipe. The second spray pipe (202) is connected to the liquid outlet of the second centrifugal pump (8) through the connecting pipe.