A segmented waste heat recovery and temperature raising system suitable for separating mash

Abstract

The utility model discloses a segmented waste heat recovery and temperature raising system suitable for separation mash, comprising a separation mash storage tank, a liquid inlet module is provided at the liquid inlet end of the separation mash storage tank, and a liquid outlet module is provided at the liquid outlet end of the separation mash storage tank; the separation mash storage tank forms a heat exchange cycle with a CIP recovery water tank through a first-order temperature rising module, and an air inlet of the separation mash storage tank forms a temperature rising cooperation through a second-order temperature rising module, and the second-order temperature rising module and the first-order temperature rising module are alternately connected with the separation mash storage tank; a liquid level sensor and a temperature sensor are respectively provided on the top of the separation mash storage tank, and the sensing ends of the liquid level sensor and the temperature sensor both form a sensing cooperation with the liquid in the tank, a controller is provided on one side of the separation mash storage tank, the second-order temperature rising module and the first-order temperature rising module form a linkage cooperation with the temperature sensor through the controller, and the liquid inlet module and the liquid outlet module form a linkage cooperation with the liquid level sensor through the controller, so as to utilize waste heat, perform staged heating, and save energy and reduce emissions.

Description

Technical Field

[0001] The utility model relates to the technical field of yeast production equipment, in particular to a segmented waste heat recovery and temperature raising system suitable for separating mash. Background Art

[0002] CIP, also known as cleaning in place or cleaning in place, is widely used in food and beverage production enterprises with a high degree of mechanization, such as beverages, dairy products, juice, pulp, jam, and wine.

[0003] The high-concentration nutrient solution in the existing yeast production is mainly the separated mash separated by centrifugation during the fermentation process. Yeast is mainly produced using molasses as a carbon source for growth. Since the organic matter in molasses cannot be completely used by yeast, the remaining organic matter in molasses and the newly produced organic matter in the yeast's growth and metabolism process enter the separated mash together. Before use, the separated mash needs to be pasteurized, and the temperature is raised from 13°C to 80°C and kept at this temperature for one hour. The following problems exist in the process:

[0004] 1. The heating process mainly relies on steam, which consumes a lot of steam, has a high supply steam pressure, and consumes a lot of energy;

[0005] 2. The 70℃ wastewater generated during the CIP cleaning process directly discharges heat energy and wastes a lot of it every day. Utility Model Content

[0006] The utility model provides a segmented waste heat recovery and temperature raising system suitable for separated mash, aiming to solve the problems of large steam demand for pasteurization of separated mash and waste of CIP cleaning water waste heat.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A segmented waste heat recovery and temperature raising system suitable for separation mash comprises a separation mash storage tank, a liquid inlet end of the separation mash storage tank is provided with a liquid inlet module, and a liquid outlet end of the separation mash storage tank is provided with a liquid outlet module;

[0009] The separation mash storage tank forms a heat exchange cycle with the CIP recovery water tank through a first-order heating module, and the air inlet of the separation mash storage tank forms a heating coordination through a second-order heating module, and the second-order heating module and the first-order heating module are alternately connected to the separation mash storage tank;

[0010] A liquid level sensor and a temperature sensor are respectively provided on the top of the separation mash storage tank, and the sensing ends of the liquid level sensor and the temperature sensor form an inductive coordination with the liquid in the tank. A controller is provided on one side of the separation mash storage tank, and the second-order temperature rise module and the first-order temperature rise module form a linkage coordination with the temperature sensor through the controller, and the liquid inlet module and the liquid outlet module form a linkage coordination with the liquid level sensor through the controller.

[0011] Preferably, the liquid inlet module comprises a mash inlet pipe, the liquid inlet of the separated mash storage tank is connected to the liquid outlet of the mash separator via the mash inlet pipe, and a first liquid inlet valve is provided on the mash inlet pipe.

[0012] More preferably, the liquid outlet module includes a mash outlet pipe, the liquid outlet of the separation mash storage tank is connected to the liquid inlet of the honey mixing tank through the mash outlet pipe, and the mash outlet pipe is provided with a second liquid outlet valve and a liquid outlet pump.

[0013] Further, when the temperature of the mash in the separation mash storage tank is not greater than 45°C, the first-order temperature increase module is connected to the separation mash storage tank, and the second-order temperature increase module is not connected to the separation mash storage tank;

[0014] When the temperature of the mash in the separation mash storage tank is greater than 45°C and not greater than 80°C, the first-order temperature rising module is not connected to the separation mash storage tank, and the second-order temperature rising module is connected to the separation mash storage tank.

[0015] Furthermore, the first-order heating module includes a plate heat exchanger, the circulating outlet of the separation mash storage tank is connected to the cold medium inlet of the plate heat exchanger through a cold medium inlet pipe, and the cold medium inlet pipe is provided with a first outlet valve and a circulation pump, the cold medium outlet of the plate heat exchanger is connected to the circulating inlet of the separation mash storage tank through a cold medium outlet pipe, and the cold medium outlet pipe is provided with a second inlet valve.

[0016] Specifically, the heat medium inlet of the plate heat exchanger is connected to the liquid outlet of the CIP recovery water tank through a heat medium inlet pipe, and a recovery pump is provided on the heat medium inlet pipe. The heat medium outlet of the plate heat exchanger is connected to the liquid inlet of the sewage collection equipment through a heat medium outlet pipe.

[0017] Furthermore, the second-stage temperature rising module includes a steam inlet pipe, the air inlet of the separation mash storage tank is connected to the air outlet of the steam generator through the steam inlet pipe, and an air inlet valve is provided on the steam inlet pipe.

[0018] Beneficial effects of the utility model:

[0019] The utility model heats up the temperature in sequence by alternately operating the first-order heating module and the second-order heating module. The low-temperature stage is heated by the plate heat exchanger of the first-order heating module, and the high-temperature stage is heated by the steam of the second-order heating module, thereby reducing steam demand and saving energy and reducing emissions.

[0020] The first-stage temperature rising module of the utility model exchanges heat with the CIP drainage water in the CIP recovery water tank through a plate heat exchanger, making full use of the waste heat of the CIP drainage, saving energy and reducing emissions, and being green and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of system connection of the utility model;

[0022] In the figure: 1. Separation mash storage tank;

[0023] 2. Liquid inlet module; 201. Mash liquid inlet pipe; 202. First liquid inlet valve;

[0024] 3. First-order temperature rise module; 301. Cold medium inlet pipe; 302. First outlet valve; 303. Circulation pump; 304. Plate heat exchanger; 305. Recovery pump; 306. Hot medium inlet pipe; 307. Hot medium outlet pipe; 308. Cold medium outlet pipe; 309. Second inlet valve;

[0025] 4. Second-stage temperature rise module; 401. Steam inlet pipe; 402. Inlet valve;

[0026] 5. Liquid outlet module; 501. Mash liquid outlet pipe; 502. Second liquid outlet valve; 503. Liquid outlet pump;

[0027] 6. CIP recovery water tank; 7. Liquid level sensor; 8. Temperature sensor; 9. Controller. DETAILED DESCRIPTION

[0028] As follows, embodiments are further described with reference to the accompanying drawings.

[0029] like Figure 1 As shown, as a preferred embodiment 1, a segmented waste heat recovery and temperature raising system suitable for separation mash includes a separation mash storage tank 1, a liquid inlet module 2 is provided at the liquid inlet end of the separation mash storage tank 1, and a liquid outlet module 5 is provided at the liquid outlet end of the separation mash storage tank 1;

[0030] The separation mash storage tank 1 forms a heat exchange cycle with the CIP recovery water tank 6 through the first-order temperature increase module 3, and the air inlet of the separation mash storage tank 1 forms a temperature increase through the second-order temperature increase module 4, and the second-order temperature increase module 4 and the first-order temperature increase module 3 are alternately connected with the separation mash storage tank 1;

[0031] A liquid level sensor 7 and a temperature sensor 8 are respectively provided on the top of the separation mash storage tank 1, and the sensing ends of the liquid level sensor 7 and the temperature sensor 8 both form an induction coordination with the liquid in the tank. A controller 9 is provided on one side of the separation mash storage tank 1. The second-order temperature rise module 4 and the first-order temperature rise module 3 form a linkage coordination with the temperature sensor 8 through the controller 9, and the liquid inlet module 2 and the liquid outlet module 5 form a linkage coordination with the liquid level sensor 7 through the controller 9.

[0032] Embodiment 1 provides a segmented waste heat recovery and temperature raising system suitable for separation mash. The system senses the liquid level in the tank through a liquid level sensor 7. Before starting, the separation mash storage tank 1 is filled with samples through a liquid inlet module 2. When the liquid level reaches a specified height, the liquid level sensor 7 closes the liquid inlet module 2 through a controller 9 to stop feeding.

[0033] The controller 9 starts the first-stage heating stage. In this stage, the second-stage heating module 4 is closed, and the first-stage heating module 3 is opened for cyclic heating. The first-stage heating module 3 exchanges heat with the CIP wastewater stored in the CIP recovery water tank 6 through the plate heat exchanger 304, and the temperature of the separated mash is increased from 13°C to 45°C. During the process, the temperature of the separated mash is monitored by the temperature sensor 8. When the temperature reaches 45°C, the temperature sensor 8 closes the first-stage heating module 3 through the controller 9 and opens the second-stage heating module 4.

[0034] The controller 9 turns on the second-order heating module 4 for steam heating. By providing hot steam, the temperature of the separated mash is increased from 45°C to 80°C. During the process, the temperature of the separated mash is monitored by the temperature sensor 8. When the temperature reaches 80°C, the temperature sensor 8 turns off the second-order heating module 4 through the controller 9 and stops heating. When the temperature is lower than 80°C, it is reheated and maintained at 80°C for 1 hour for pasteurization. When the 1 hour time is up, the heating is stopped and the liquid discharge stage is started through the controller 9.

[0035] In the liquid discharge stage, the controller 9 opens the liquid discharge module 5 to perform the liquid discharge operation, and discharges the heated separated mash into the honey preparation tank. During the process, the change of the liquid level is sensed by the liquid level sensor 7. When the liquid level shows that it has been emptied, the liquid level sensor 7 closes the liquid discharge module 5 through the controller 9, stops the liquid discharge, reopens the liquid inlet module 2 to perform the liquid inlet operation, and repeats the above steps;

[0036] According to the above steps, the temperature rise is designed in stages. On the one hand, the stability of the temperature rise is guaranteed to ensure the quality of the separated mash after the temperature rise. On the other hand, the waste heat of the sewage generated by CIP cleaning is used for the first-order temperature rise in the low-temperature stage, which utilizes the waste heat in the industrial system and reduces the loss of steam, saving energy, being green and environmentally friendly, and effectively treating the separated mash microorganisms to meet the technical standards for the fermentation process.

[0037] As a preferred embodiment 2, the liquid level sensor 7 can be FST100-7101, the temperature sensor 8 can be BD-TC-JB, and the controller 9 can be an industrial PLC controller, and a timing module is integrated in the controller.

[0038] As a preferred embodiment 3, the liquid inlet module 2 includes a mash inlet pipe 201, the liquid inlet of the separated mash storage tank 1 is connected to the liquid outlet of the mash separator through the mash inlet pipe 201, and a first liquid inlet valve 202 is provided on the mash inlet pipe 201 to ensure liquid inlet operation.

[0039] As a preferred embodiment 4, the liquid outlet module 5 includes a mash outlet pipe 501, the liquid outlet of the separation mash storage tank 1 is connected to the liquid inlet of the honey mixing tank through the mash outlet pipe 501, and the mash outlet pipe 501 is provided with a second liquid outlet valve 502 and a liquid outlet pump 503 to ensure liquid outlet operation.

[0040] As a preferred embodiment 5, when the temperature of the mash in the separation mash storage tank 1 is not greater than 45°C, the first-order temperature increase module 3 is connected to the separation mash storage tank 1, and the second-order temperature increase module 4 is not connected to the separation mash storage tank 1;

[0041] When the temperature of the mash in the separation mash storage tank 1 is greater than 45°C and less than 80°C, the first-stage heating module 3 is disconnected from the separation mash storage tank 1, and the second-stage heating module 4 is connected to the separation mash storage tank 1. It is used to realize segmented heating, and different heating modules are started in different heating stages to save energy and reduce emissions.

[0042] As a preferred embodiment 6, the first-order temperature rise module 3 includes a plate heat exchanger 304, the circulating liquid outlet of the separation mash storage tank 1 is connected to the cold medium inlet of the plate heat exchanger 304 through the cold medium inlet pipe 301, and the cold medium inlet pipe 301 is provided with a first liquid outlet valve 302 and a circulation pump 303, the cold medium outlet of the plate heat exchanger 304 is connected to the circulating liquid inlet of the separation mash storage tank 1 through the cold medium outlet pipe 308, and the cold medium outlet pipe 308 is provided with a second liquid inlet valve 309. A cycle is formed, and the separation mash exchanges heat with the plate heat exchanger 304 during the cycle.

[0043] As a preferred embodiment 7, the heat medium inlet of the plate heat exchanger 304 is connected to the liquid outlet of the CIP recovery water tank 6 through the heat medium liquid inlet pipe 306, and the heat medium liquid inlet pipe 306 is provided with a recovery pump 305, and the heat medium outlet of the plate heat exchanger 304 is connected to the liquid inlet of the sewage collection device through the heat medium liquid outlet pipe 307. The CIP cleaning sewage in the CIP recovery water tank 6 provides a heat source for first-order temperature rise, and sewage is discharged after fully utilizing the waste heat, thereby saving energy and reducing emissions.

[0044] As a preferred embodiment 8, the second-stage temperature increase module 4 includes a steam inlet pipe 401, the air inlet of the separation mash storage tank 1 is connected to the steam generator outlet through the steam inlet pipe 401, and an air inlet valve 402 is provided on the steam inlet pipe 401. Steam is used to provide a heat source for the second-stage temperature increase.

[0045] As a preferred embodiment 9, the first liquid inlet valve 202, the first liquid outlet valve 302, the second liquid inlet valve 309, the second liquid outlet valve 502 and the air inlet valve 402 are all one-way solenoid valves, which are convenient for control and prevent back suction.

[0046] The working principle of this utility model:

[0047] The utility model provides a segmented waste heat recovery and temperature raising system suitable for separation mash. The system senses the liquid level in the tank through a liquid level sensor 7. Before starting, the separation mash storage tank 1 is filled with samples through a liquid inlet module 2. When the liquid level reaches a specified height, the liquid level sensor 7 closes the liquid inlet module 2 through a controller 9 to stop feeding.

[0048] The controller 9 starts the first-stage heating stage. In this stage, the second-stage heating module 4 is closed, and the first-stage heating module 3 is opened for cyclic heating. The first-stage heating module 3 exchanges heat with the CIP wastewater stored in the CIP recovery water tank 6 through the plate heat exchanger 304, and the temperature of the separated mash is increased from 13°C to 45°C. During the process, the temperature of the separated mash is monitored by the temperature sensor 8. When the temperature reaches 45°C, the temperature sensor 8 closes the first-stage heating module 3 through the controller 9 and opens the second-stage heating module 4.

[0049] The controller 9 turns on the second-order heating module 4 for steam heating. By providing hot steam, the temperature of the separated mash is increased from 45°C to 80°C. During the process, the temperature of the separated mash is monitored by the temperature sensor 8. When the temperature reaches 80°C, the temperature sensor 8 turns off the second-order heating module 4 through the controller 9 and stops heating. When the temperature is lower than 80°C, it is reheated and maintained at 80°C for 1 hour for pasteurization. When the 1 hour time is up, the heating is stopped and the liquid discharge stage is started through the controller 9.

[0050] In the liquid discharge stage, the controller 9 opens the liquid discharge module 5 to perform the liquid discharge operation, and discharges the heated separated mash into the honey preparation tank. During the process, the change of the liquid level is sensed by the liquid level sensor 7. When the liquid level shows that it has been emptied, the liquid level sensor 7 closes the liquid discharge module 5 through the controller 9, stops the liquid discharge, reopens the liquid inlet module 2 to perform the liquid inlet operation, and repeats the above steps;

[0051] According to the above steps, the temperature rise is designed in stages. On the one hand, the stability of the temperature rise is guaranteed to ensure the quality of the separated mash after the temperature rise. On the other hand, the waste heat of the sewage generated by CIP cleaning is used for the first-order temperature rise in the low-temperature stage, which utilizes the waste heat in the industrial system and reduces the loss of steam, saving energy, being green and environmentally friendly, and effectively treating the separated mash microorganisms to meet the technical standards for the fermentation process.

Claims

1. A segmented waste heat recovery and temperature raising system for separated mash, comprising a separated mash storage tank (1), characterized in that: The liquid inlet end of the separation mash storage tank (1) is provided with a liquid inlet module (2), and the liquid outlet end of the separation mash storage tank (1) is provided with a liquid outlet module (5); The separation mash storage tank (1) forms a heat exchange cycle with the CIP recovery water tank (6) through the first-order temperature increase module (3), and the air inlet of the separation mash storage tank (1) forms a temperature increase through the second-order temperature increase module (4), and the second-order temperature increase module (4) and the first-order temperature increase module (3) are alternately connected to the separation mash storage tank (1); A liquid level sensor (7) and a temperature sensor (8) are respectively provided on the top of the separation mash storage tank (1), and the sensing ends of the liquid level sensor (7) and the temperature sensor (8) both form an inductive coordination with the liquid in the tank. A controller (9) is provided on one side of the separation mash storage tank (1), and the second-order temperature rise module (4) and the first-order temperature rise module (3) form a linkage coordination with the temperature sensor (8) through the controller (9), and the liquid inlet module (2) and the liquid outlet module (5) form a linkage coordination with the liquid level sensor (7) through the controller (9).

2. The segmented waste heat recovery and temperature raising system for separating mash according to claim 1 is characterized in that: The liquid inlet module (2) comprises a mash liquid inlet pipe (201), the liquid inlet of the separated mash storage tank (1) is connected to the liquid outlet of the mash separator via the mash liquid inlet pipe (201), and a first liquid inlet valve (202) is provided on the mash liquid inlet pipe (201).

3. The segmented waste heat recovery and temperature raising system for separating mash according to claim 2 is characterized in that: The liquid outlet module (5) comprises a mash outlet pipe (501), the liquid outlet of the separation mash storage tank (1) is connected to the liquid inlet of the honey mixing tank via the mash outlet pipe (501), and a second liquid outlet valve (502) and a liquid outlet pump (503) are provided on the mash outlet pipe (501).

4. The segmented waste heat recovery and temperature raising system for separating mash according to claim 3 is characterized in that: When the temperature of the mash in the separation mash storage tank (1) is not greater than 45° C., the first-order temperature increase module (3) is connected to the separation mash storage tank (1), and the second-order temperature increase module (4) is not connected to the separation mash storage tank (1); When the temperature of the mash in the separation mash storage tank (1) is greater than 45°C and less than 80°C, the first-order temperature increase module (3) is not connected to the separation mash storage tank (1), and the second-order temperature increase module (4) is connected to the separation mash storage tank (1).

5. The segmented waste heat recovery and temperature raising system for separating mash according to claim 4 is characterized in that: The first-order temperature rise module (3) comprises a plate heat exchanger (304); the circulating liquid outlet of the separation mash storage tank (1) is connected to the cold medium inlet of the plate heat exchanger (304) via a cold medium inlet pipe (301), and the cold medium inlet pipe (301) is provided with a first liquid outlet valve (302) and a circulation pump (303); the cold medium outlet of the plate heat exchanger (304) is connected to the circulating liquid inlet of the separation mash storage tank (1) via a cold medium outlet pipe (308), and the cold medium outlet pipe (308) is provided with a second liquid inlet valve (309).

6. The segmented waste heat recovery and temperature raising system for separating mash according to claim 5 is characterized in that: The heat medium inlet of the plate heat exchanger (304) is connected to the liquid outlet of the CIP recovery water tank (6) via a heat medium liquid inlet pipe (306), and a recovery pump (305) is provided on the heat medium liquid inlet pipe (306). The heat medium outlet of the plate heat exchanger (304) is connected to the liquid inlet of the sewage collection device via a heat medium liquid outlet pipe (307).

7. The segmented waste heat recovery and temperature raising system for separating mash according to claim 4 is characterized in that: The second-stage temperature increase module (4) comprises a steam inlet pipe (401), the air inlet of the separation mash storage tank (1) is connected to the air outlet of the steam generator via the steam inlet pipe (401), and an air inlet valve (402) is provided on the steam inlet pipe (401).

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