Automatic temperature control and acid regulation system for jelly production and control method

Abstract

The invention provides an automatic temperature control and acid regulation system for jelly production and a control method. A feed liquid storage tank is connected with a tubular heat exchanger through a feed liquid outlet pipe and a stock solution thermometer, and the tubular heat exchanger is connected with a hot water temperature regulation system for regulating the temperature of feed liquid; a feed liquid flow control valve, a liquid outlet thermometer, a second electromagnetic valve and a first acidity meter are sequentially mounted at a feed liquid outlet of the tubular heat exchanger and then are connected with the mixed acid adjusting equipment; the mixed acid adjusting equipment is connected with an acid supply system for supplying acid liquor; and the outlet of the mixed acid adjusting equipment is connected with the material temporary storage tank through a material flow control valve, a second acidity meter and a fourth electromagnetic valve. The system can accurately control the material temperature during acid adjustment, avoids the influence on the jelly quality due to overhigh temperature, adjusts the acid before filling, accurately controls the pH value of the material and the time point of acid addition, reduces the damage of the acid to the waiting time after the acid addition of the material liquid, stabilizes the product quality, and avoids the inconsistency of the jelly quality in the early stage and the later stage of filling.

Description

Technical Field

[0001] The invention belongs to the field of jelly production equipment, and in particular relates to an automatic temperature control and acid adjustment system and a control method for jelly production. Background Art

[0002] Background introduction of related technologies: In the field of food processing technology, jelly is a common dessert, and its production process includes steps such as cooking, acidifying, and filling. During the acidifying process, acidic substances such as citric acid and malic acid are usually added to adjust the pH value and adjust the flavor. However, substances such as carrageenan required for jelly gel will be destroyed by heat under acidic conditions, so it is necessary to accurately control the material temperature during acidifying to avoid affecting the quality of the jelly. At the same time, in the field of intelligent control technology, temperature regulation technology is a key link. Through intelligent temperature and acid adjustment equipment, efficient management and control of temperature can be achieved, thereby improving production efficiency and product quality.

[0003] Solution of existing technology: The existing jelly acidification process is to pump the liquid material to the mixing tank after cooking, add acid after coloring and seasoning, stir evenly, and wait for filling. At this time, the liquid material temperature is below 80℃, and the acidification temperature needs to be strictly controlled to avoid affecting the quality of the jelly.

[0004] Problems with the existing technology: Although the existing jelly acidification process can already control the acidification temperature, there are still some problems in actual production. First, many manufacturers cannot control the acidification temperature with efficient and reasonable means. In many cases, the acidification temperature is too high, which will affect the quality of the jelly. Secondly, after acidification, depending on the total amount of materials, the filling time is 30min-60min or even longer. During this period of time, the colloid will be damaged to a certain extent, resulting in inconsistent jelly quality in the early and late stages of filling. In addition, if the filling equipment fails or production needs to be suspended for other reasons, the acidified materials may be destroyed and wasted. For jellies that need to add dairy products and proteins, stricter control is required, the acidification temperature is lower, and the filling time is shorter. If the control is not good, the protein will denature into floccules. Finally, since the acidification cannot be left for too long, the amount of cooking materials for existing jelly production needs to be set according to the filling machine speed, generally 500kg-1t, and the frequency of mixing and preparing ingredients is high, which consumes manpower and time. Summary of the invention

[0005] The invention aims to provide an automatic temperature control and acid adjustment system and control method for jelly production. The system can accurately control the material temperature during acid adjustment to avoid affecting the quality of the jelly due to excessively high temperature. In addition, the system can adjust the acid before filling, accurately control the pH value of the material and the time point of acid addition, reduce the waiting time of the material liquid after acid addition to be destroyed by the acid, stabilize the product quality, and avoid inconsistent jelly quality in the early and late stages of filling. By increasing the single cooking amount before acid addition, the cooking frequency is reduced, the production efficiency is improved, the frequency of ingredient cooking and mixing is reduced, and manpower and time are saved.

[0006] In order to achieve the above technical features, the purpose of the present invention is achieved as follows: an automated temperature control and acid adjustment system for jelly production, comprising a liquid storage tank, which is connected to a tubular heat exchanger through a liquid outlet pipe and a raw liquid thermometer, and the tubular heat exchanger is connected to a hot water temperature adjustment system for adjusting the liquid temperature; the liquid outlet of the tubular heat exchanger is connected to a mixed acid adjustment device after a liquid flow control valve, a liquid outlet thermometer, a second solenoid valve and a first acidity meter are installed in sequence; the mixed acid adjustment device is connected to an acid supply system for supplying acid; the outlet of the mixed acid adjustment device is connected to a material temporary storage tank through a material flow control valve, a second acidity meter and a fourth solenoid valve.

[0007] A feed liquid valve and a feed pump are installed on the pipeline located at the feed liquid outlet pipe and before the raw liquid thermometer.

[0008] The hot water temperature control system comprises a water inlet pipe, which is connected to a plate heat exchanger through a first solenoid valve, and the plate heat exchanger is connected to a tube heat exchanger.

[0009] A liquid reflux pipe is installed on the pipeline between the liquid outlet thermometer and the second solenoid valve, and the liquid reflux pipe is connected to the tubular heat exchanger through the third solenoid valve and the liquid outlet pipe.

[0010] The mixed acid-adjusting equipment adopts a twin-screw mixing pump connected to a motor to mix the acid and the feed liquid evenly.

[0011] The acid supply system comprises an acid storage tank, the outlet of which is connected to a plurality of branched acid liquid pipes through an acid liquid pump and an acid liquid flow valve, and the branched acid liquid pipes are connected to a mixed acid conditioning device.

[0012] A material reflux pipe is installed on the pipeline between the material flow control valve and the fourth solenoid valve, the other end of the material reflux pipe is connected to the inlet of the mixed acid adjustment equipment, and a fifth solenoid valve is installed on the material reflux pipe.

[0013] The outlet of the material temporary storage tank is connected to the filling machine through a material output pump.

[0014] Also includes a control system.

[0015] A control method for an automated temperature control and acid adjustment system for jelly production, the control method being implemented by the automated temperature control and acid adjustment system for jelly production, comprising the following steps: Step 1, preparation of feed solution: The raw materials required for preparing the feed liquid are put into the feed liquid storage tank, and the feed liquid is prepared after the raw materials are stirred in the feed liquid storage tank for standby use; Step 2, temperature control of the feed liquid: The feed liquid is transported to the tubular heat exchanger through the feed liquid outlet pipe, and the original temperature of the feed liquid is measured by the original liquid thermometer. Then, according to the required temperature, the temperature of the hot water temperature control system is adjusted, and then the temperature of the feed liquid inside the tubular heat exchanger is adjusted by the hot water temperature control system to make the feed liquid temperature reach the required temperature; Step 3, temperature reflux control of the feed liquid: After the initial adjustment of the feed liquid temperature is completed, the feed liquid is output through the tubular heat exchanger, and the outlet temperature is measured by the outlet temperature meter. When it is monitored that the outlet temperature does not reach the set temperature, the second solenoid valve is controlled to close and the third solenoid valve is opened, and the feed liquid is returned to the tubular heat exchanger for temperature adjustment; Step 4, preparation of mixed material: After the temperature control, the feed liquid is firstly measured for pH by a first acidity meter. At the same time, acid solution is provided by an acid supply system and added to the mixing acid adjustment equipment to be mixed with the feed liquid, thereby preparing a mixed material. Step 5, acidity adjustment of the mixture: During the output of the mixed material inside the mixed acid adjustment equipment, the pH is measured by the second acidity meter, and the pH value is compared with the standard pH. If the pH exceeds the set range, the fourth solenoid valve and the fifth solenoid valve control the reflux, and the control system calculates and adjusts the amount of acid added, so that the acidity of the final prepared mixed material meets the requirements; Step 6, output of mixed materials: The prepared mixed material is transported to a temporary material storage tank for standby use; Step 7, filling of jelly: Start the material output pump and the filling machine, and fill the jelly through the filling machine.

[0016] The present invention has the following beneficial effects: 1. Accurately control the material temperature during acid adjustment: The intelligent temperature control and acid adjustment equipment designed in the present invention can accurately control the material temperature during acid adjustment through a temperature measurement and control system, thereby avoiding the problem of high acid adjustment temperature in the prior art, thereby protecting the quality of the jelly.

[0017] 2. Reduce manual intervention steps, save manpower and time: The present invention adopts an intelligent control system for temperature control and acidity control, which does not require manual intervention control, thereby saving manpower and time and improving production efficiency.

[0018] 3. Reduce the frequency of cooking, save manpower and time: Since the present invention adopts the method of acid adjustment before filling, it avoids acid damage during the waiting time for filling, can increase the amount of single cooking, reduce the frequency of cooking, thereby saving manpower and time, and improving production efficiency.

[0019] 4. Stabilize product quality: The intelligent temperature control and acid adjustment equipment of the present invention can accurately control the pH value of the material and the time of acid addition before filling, thereby stabilizing the product quality and improving the quality consistency of the jelly.

[0020] 5. Avoid waste and improve resource utilization: In the prior art, if the filling equipment fails or production needs to be suspended for other reasons, the acid-adjusted materials may be destroyed and wasted. However, the intelligent temperature control and acid-adjusting equipment of the present invention can stop the acid-adjusting process in time when the production suspension is detected, thereby avoiding waste and improving resource utilization.

[0021] 6. Strong adaptability, suitable for different types of jelly production: For jelly that needs to add dairy products and protein, stricter control is required, the temperature of acid adjustment is controllable, and the interval between acid addition and filling is shorter. The intelligent temperature control and acid adjustment equipment of the present invention can adapt to different types of jelly production by adjusting the temperature and the time point of acid addition, thereby improving the applicability of the equipment.

[0022] In summary, the intelligent temperature control and acid regulating equipment of the present invention has significant advantages over the prior art by accurately controlling the material temperature during acid regulating, adjusting the acid regulating timing, reducing the frequency of boiling materials, stabilizing product quality, avoiding waste and improving resource utilization, as well as having strong adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 The present invention is a system diagram of an automatic temperature control and acid adjustment system for jelly production.

[0025] In the figure: a first solenoid valve 1, a plate heat exchanger 2, a tubular heat exchanger 3, a raw liquid thermometer 4, a liquid flow control valve 5, a liquid outlet thermometer 6, a third solenoid valve 7, a second solenoid valve 8, a first acidity meter 9, a mixed acid adjustment device 10, an acid storage tank 11, an acid flow valve 12, a material flow control valve 13, a second acidity meter 14, a fifth solenoid valve 15, a fourth solenoid valve 16, a control system 17, a material temporary storage tank 18, a filling machine 19, a water inlet pipe 20, a liquid storage tank 21, a liquid valve 22, a feed pump 23, a liquid outlet pipe 24, a motor 25, a branched acid pipe 26, an acid pump 27, a material reflux pipe 28, and a material output pump 29. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0027] Embodiment 1: like Figure 1 As shown, an automated temperature control and acid adjustment system for jelly production includes a liquid storage tank 21, which is connected to a tubular heat exchanger 3 through a liquid outlet pipe 24 and a raw liquid thermometer 4, and the tubular heat exchanger 3 is connected to a hot water temperature adjustment system for adjusting the liquid temperature; a liquid outlet of the tubular heat exchanger 3 is sequentially installed with a liquid flow control valve 5, a liquid outlet thermometer 6, a second solenoid valve 8 and a first acidity meter 9, and then connected to a mixed acid adjustment device 10; the mixed acid adjustment device 10 is connected to an acid supply system for supplying acid; the outlet of the mixed acid adjustment device 10 is connected to a material temporary storage tank 18 through a material flow control valve 13, a second acidity meter 14 and a fourth solenoid valve 16. This system can accurately control the material temperature during acid adjustment to avoid affecting the quality of the jelly due to over-high temperature. It can also adjust the acid before filling, accurately control the pH value of the material and the time of acid addition, reduce the waiting time after acid addition before the material is damaged by the acid, stabilize the product quality, and avoid inconsistent jelly quality in the early and late stages of filling. By increasing the amount of material boiled at a time before acid addition and reducing the frequency of boiling, production efficiency can be improved, the frequency of ingredient mixing and boiling can be reduced, and manpower and time can be saved.

[0028] Furthermore, a liquid valve 22 and a feed pump 23 are installed on the liquid outlet pipe 24 and the pipeline before the raw liquid thermometer 4. The liquid valve 22 facilitates the subsequent control of the discharge of the liquid in the liquid storage tank 21, and the feed pump 23 is used to transport the liquid to the tubular heat exchanger 3.

[0029] Furthermore, the hot water temperature control system includes a water inlet pipe 20, which is connected to the plate heat exchanger 2 through the first solenoid valve 1, and the plate heat exchanger 2 is connected to the tubular heat exchanger 3. The hot water temperature control system facilitates the adjustment of the water supply temperature. The temperature of the tubular heat exchanger 3 is then controlled to achieve the purpose of adjusting the feed liquid temperature.

[0030] Furthermore, a liquid reflux pipe 30 is installed on the pipeline between the liquid outlet thermometer 6 and the second solenoid valve 8, and the liquid reflux pipe 30 is connected to the tubular heat exchanger 3 through the third solenoid valve 7 and the liquid outlet pipe 24. The second solenoid valve 8 and the third solenoid valve 7 can be used to control the reflux of the liquid, so that the temperature of the liquid can reach the required temperature.

[0031] Furthermore, the mixing and acid-adjusting device 10 uses a twin-screw mixing pump connected to a motor 25 to mix the acid and the feed liquid uniformly. The twin-screw mixing pump can achieve full mixing of the materials.

[0032] Further, the acid supply system includes an acid storage tank 11, the outlet of the acid storage tank 11 is connected to a plurality of branched acid liquid pipes 26 through an acid pump 27 and an acid flow valve 12, and the branched acid liquid pipes 26 are connected to the mixed acid conditioning device 10. The acid supply system can realize the supply of acid. The plurality of branched acid liquid pipes 26 ensure that the acid is fully contacted and mixed inside the mixed acid conditioning device 10.

[0033] Furthermore, a material reflux pipe 28 is installed on the pipeline between the material flow control valve 13 and the fourth solenoid valve 16, the other end of the material reflux pipe 28 is connected to the inlet of the mixed acid conditioning equipment 10, and a fifth solenoid valve 15 is installed on the material reflux pipe 28. The material reflux pipe 28 facilitates the reflux control of the material.

[0034] Furthermore, the outlet of the material temporary storage tank 18 is connected to the filling machine 19 through the material output pump 29. The material temporary storage tank 18 facilitates the caching of materials. The filling machine 19 is used for filling jelly.

[0035] Furthermore, a control system 17 is also included.

[0036] Embodiment 2: The operation and principle of each component of the present invention: First solenoid valve 1: controls the water volume to control the temperature of the hot water; Plate heat exchanger 2: adjust the water temperature; Tubular heat exchanger 3: adjust the liquid temperature; Raw liquid thermometer 4: measures the feed inlet temperature to provide data and dynamically adjust the water temperature of the heat exchange medium; Liquid flow control valve 5: stable flow; Liquid outlet thermometer 6: measures the temperature of the outlet to provide data. If the temperature exceeds the set range, the third solenoid valve 7 and the second solenoid valve 8 will control the reflux; The first acidity meter 9: measures the acidity of the material outlet to provide data for dynamically controlling the amount of acid added for acid adjustment; Mixing and acid conditioning equipment 10: A specially designed twin-screw mixing pump is used to mix the acid and the material evenly; Acid storage tank 11: Mixing and storing acid Acid flow valve 12: Accurately control the amount of acid added Material flow control valve 13: stable flow The second acidity meter 14 measures the acidity of the material outlet. If the pH exceeds the set range, the fifth solenoid valve 15 and the fourth solenoid valve 16 control the reflux, and the intelligent control system calculates and adjusts the amount of acid added; Control system 17: A computer program is used to calculate and control each device, and all electrical devices are connected to it. The circuit is not marked in the figure; specifically, a single-chip microcomputer or a PLC control system can be used; Material temporary storage tank 18: equipped with a liquid level gauge, the material does not exceed 50kg, and the front-end operation can be suspended when the liquid level is exceeded; Filling machine 19: High-speed jelly filling machine, equipped with fault alarm device, which can control and pause the front-end operation.

[0037] Embodiment 3: A control method for an automated temperature control and acid adjustment system for jelly production, the control method being implemented by the automated temperature control and acid adjustment system for jelly production, comprising the following steps: Step 1, preparation of feed solution: The raw materials required for preparing the feed liquid are put into the feed liquid storage tank 21, and the feed liquid is prepared into the feed liquid after the raw materials are stirred in the feed liquid storage tank 21 for standby use; Step 2, temperature control of the feed liquid: The feed liquid is transported to the tubular heat exchanger 3 through the feed liquid outlet pipe 24, and the original temperature of the feed liquid is measured by the original liquid thermometer 4. Then, the temperature of the hot water temperature control system is adjusted according to the required temperature, and then the temperature of the feed liquid inside the tubular heat exchanger 3 is adjusted by the hot water temperature control system, and the feed liquid temperature reaches the required temperature; Step 3, temperature reflux control of the feed liquid: After the initial adjustment of the feed liquid temperature is completed, the feed liquid is output through the tubular heat exchanger 3, and the outlet temperature is measured by the outlet temperature meter 6. When it is monitored that the outlet temperature does not reach the set temperature, the second solenoid valve 8 is controlled to close and the third solenoid valve 7 is opened, so that the feed liquid is returned to the tubular heat exchanger 3 for temperature adjustment; Step 4, preparation of mixed material: After the temperature control, the feed liquid is firstly measured for pH by the first acidity meter 9. At the same time, the acid solution is provided by the acid supply system and added to the mixing acid adjustment device 10 to be mixed with the feed liquid, thereby preparing a mixed material. Step 5, acidity adjustment of the mixture: During the output of the mixed material inside the mixed acid adjustment device 10, the pH is measured by the second acidity meter 14, and the pH value is compared with the standard pH. If the pH exceeds the set range, the fourth solenoid valve 16 and the fifth solenoid valve 15 control the reflux, and the control system calculates and adjusts the amount of acid added, so that the acidity of the final prepared mixed material meets the requirements; Step 6, output of mixed materials: The prepared mixed material is transported to the material temporary storage tank 18 for standby use; Step 7, filling of jelly: Start the material output pump 29 and the filler 19, and fill the jelly through the filler 19.

Claims

1. An automated temperature control and acid adjustment system for jelly production, characterized in that: The invention comprises a liquid storage tank (21), wherein the liquid storage tank (21) is connected to a tubular heat exchanger (3) via a liquid outlet pipe (24) and a raw liquid thermometer (4), and the tubular heat exchanger (3) is connected to a hot water temperature control system for adjusting the liquid temperature; the liquid outlet of the tubular heat exchanger (3) is sequentially installed with a liquid flow control valve (5), a liquid outlet thermometer (6), a second solenoid valve (8) and a first acidity meter (9), and then connected to a mixed acid adjustment device (10); the mixed acid adjustment device (10) is connected to an acid supply system for supplying acid; and the outlet of the mixed acid adjustment device (10) is connected to a material temporary storage tank (18) via a material flow control valve (13), a second acidity meter (14) and a fourth solenoid valve (16).

2. The automatic temperature control and acid adjustment system for jelly production according to claim 1, characterized in that: A liquid valve (22) and a feed pump (23) are installed on the liquid outlet pipe (24) and on the pipeline located before the raw liquid thermometer (4).

3. The automatic temperature control and acid adjustment system for jelly production according to claim 1, characterized in that: The hot water temperature control system comprises a water inlet pipe (20), the water inlet pipe (20) being connected to a plate heat exchanger (2) via a first solenoid valve (1), and the plate heat exchanger (2) being connected to a tube heat exchanger (3).

4. The automatic temperature control and acid adjustment system for jelly production according to claim 1, characterized in that: A liquid reflux pipe (30) is installed on the pipeline between the liquid outlet thermometer (6) and the second solenoid valve (8), and the liquid reflux pipe (30) is connected to the tubular heat exchanger (3) via the third solenoid valve (7) and the liquid outlet pipe (24).

5. The automatic temperature control and acid adjustment system for jelly production according to claim 1, characterized in that: The mixing and acid-adjusting equipment (10) uses a twin-screw mixing pump connected to a motor (25) for uniformly mixing the acid and the feed liquid.

6. The automatic temperature control and acid adjustment system for jelly production according to claim 1, characterized in that: The acid supply system comprises an acid storage tank (11), the outlet of the acid storage tank (11) being connected to a plurality of branched acid liquid pipes (26) via an acid liquid pump (27) and an acid liquid flow valve (12), and the branched acid liquid pipes (26) being connected to a mixed acid conditioning device (10).

7. The automatic temperature control and acid adjustment system for jelly production according to claim 1, characterized in that: A material reflux pipe (28) is installed on the pipeline between the material flow control valve (13) and the fourth solenoid valve (16); the other end of the material reflux pipe (28) is connected to the inlet of the mixing acid adjustment device (10); and a fifth solenoid valve (15) is installed on the material reflux pipe (28).

8. The automatic temperature control and acid adjustment system for jelly production according to claim 1, characterized in that: The outlet of the material temporary storage tank (18) is connected to the filling machine (19) via a material output pump (29).

9. The automatic temperature control and acid adjustment system for jelly production according to claim 1, characterized in that: Also included is a control system (17).

10. A control method for an automated temperature control and acid adjustment system for jelly production, characterized in that: The control method is implemented by using the automatic temperature control and acid adjustment system for jelly production according to any one of claims 1 to 9, comprising the following steps: Step 1, preparation of feed solution: The raw materials required for preparing the feed liquid are added to the feed liquid storage tank (21), and the feed liquid is prepared by stirring the raw materials in the feed liquid storage tank (21) for standby use; Step 2, temperature control of the feed liquid: The feed liquid is transported to the tubular heat exchanger (3) through the feed liquid outlet pipe (24), and the original temperature of the feed liquid is measured by the original liquid thermometer (4). Then, the temperature of the hot water temperature control system is adjusted according to the required temperature, and the temperature of the feed liquid inside the tubular heat exchanger (3) is further adjusted by the hot water temperature control system to make the feed liquid temperature reach the required temperature; Step 3, temperature reflux control of the feed liquid: After the initial adjustment of the feed liquid temperature is completed, the feed liquid is discharged through the tubular heat exchanger (3), and the outlet temperature of the liquid is measured by the outlet temperature meter (6). When it is monitored that the outlet temperature of the liquid does not reach the set temperature, the second solenoid valve (8) is controlled to close and the third solenoid valve (7) is controlled to open, so that the feed liquid is returned to the tubular heat exchanger (3) for temperature adjustment; Step 4, preparation of mixed material: After the temperature control, the feed liquid is firstly measured for pH value by a first acidity meter (9). Meanwhile, an acid solution is provided by an acid supply system and added to the mixing acid adjustment device (10) to be mixed with the feed liquid, thereby preparing a mixed material. Step 5, acidity adjustment of the mixture: During the output of the mixed material inside the mixed acid adjustment device (10), the pH is measured by the second acidity meter (14), and the pH value is compared with the standard pH. If the pH exceeds the set range, the fourth solenoid valve (16) and the fifth solenoid valve (15) control the reflux, and the control system calculates and adjusts the amount of acid added, so that the acidity of the final prepared mixed material meets the requirements; Step 6, output of mixed materials: The prepared mixed material is transported to a material temporary storage tank (18) for standby use; Step 7, filling of jelly: The material output pump (29) and the filling machine (19) are started, and the jelly is filled by the filling machine (19).

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