A constant temperature and quantitative water supply device for food production

Abstract

This utility model belongs to the technical field of food production equipment, specifically a constant temperature and quantitative water supply device for food production. The device includes a variable frequency instantaneous water heater, a sealed insulated water tank, an electronic scale, a wireless remote control, and a control cabinet. The variable frequency instantaneous water heater has a built-in variable frequency heating module and temperature sensor. The control cabinet has a built-in controller, a first pneumatic solenoid valve, and a second pneumatic solenoid valve. The water inlet of the variable frequency instantaneous water heater is connected to an external water source through a first pipe, and the water outlet of the variable frequency instantaneous water heater is connected to the sealed insulated water tank through a second pipe. The electronic scale is fixedly placed at the bottom of the sealed insulated water tank, and the control cabinet is fixedly placed at the bottom of the electronic scale. This utility model provides a constant temperature and quantitative water supply device for food production, solving the problems of low temperature control accuracy, large water volume control error, serious energy waste, high failure rate, and high maintenance cost in existing technologies.

Description

Technical Field

[0001] This utility model belongs to the technical field of food production equipment, specifically a constant temperature and quantitative water supply device for food production. Background Technology

[0002] In the industrial production process of steamed buns and other flour-based products, the dough kneading step is crucial. The amount of water added and the water temperature are core technological indicators affecting dough quality and the final product's taste and appearance. Their precise control plays a decisive role in ensuring product quality stability and improving production efficiency. Currently, mainstream water-adding equipment in the food production industry mostly uses electric heating elements or steam heating to regulate water temperature, while also employing flow meters to measure and control the amount of water added. However, in practical applications, these devices have revealed many technical shortcomings, failing to meet the high standards of industrial production required for process precision, energy conservation, environmental protection, and continuous stable operation.

[0003] From a temperature control perspective, the precision of existing equipment is severely insufficient, resulting in water temperature control errors generally as high as ±5℃. However, the production of flour products has extremely stringent requirements for water temperature, needing to control the error within ±1℃. Such a large temperature difference easily leads to unstable dough fermentation, resulting in inconsistent product quality and making it difficult to guarantee product consistency. Regarding water volume control, the use of flow meters for metering has significant drawbacks. When adding 50-100 kg of water, the error range can reach 200-400 grams. Different flour product formulas have specific water volume requirements, and this large error makes it difficult for the equipment to accurately match the volume, easily causing uneven distribution of moisture in the dough, increasing rework rates, and affecting production efficiency and economic benefits. Low energy efficiency is also a major problem with existing equipment. To maintain the set temperature range, existing heating equipment needs to intermittently turn on the heat source, regardless of whether water is being dispensed. This continuous energy consumption pattern leads to serious energy waste, running counter to the current trend of energy-saving and environmentally friendly industrial production. High equipment failure rate and high maintenance costs are also issues that cannot be ignored. During steam heating or electric heating, minerals in the water can easily form scale. Impurities and scale in the water flow will adhere to the impeller, the core component inside the flow meter, hindering the normal rotation of the impeller, causing flow detection distortion, and thus leading to equipment failure. This not only requires frequent shutdowns for maintenance, but may also cause production interruptions due to abnormal water supply parameters, resulting in direct economic losses to the enterprise.

[0004] Furthermore, the existing equipment suffers from a mismatch between the supplied water temperature and the actual water usage temperature, which further increases the error in process control. During the water heating process, if water is needed immediately, it is necessary to wait for the water temperature to reach the set value, which can easily disrupt the normal production rhythm. If improper operation is performed and water that has not reached the process temperature is used, it will cause distortion of process control and ultimately seriously affect the stability of product quality. Utility Model Content

[0005] This invention provides a constant temperature and quantitative water supply device for food production, which solves the problems of low temperature control accuracy, large water volume control error, serious energy waste, high failure rate and high maintenance cost in the prior art.

[0006] To solve the above problems, this utility model provides a constant temperature and quantitative water supply device for food production, comprising:

[0007] A variable frequency instantaneous water heater has a built-in variable frequency heating module and a temperature sensor. The water inlet of the variable frequency instantaneous water heater is connected to an external water source through a first pipe, and a first filter is installed in the first pipe. The water outlet of the variable frequency instantaneous water heater is connected to the water inlet of a second pipe, and a second filter is installed in the second pipe.

[0008] A sealed insulated water tank has its inlet connected to the outlet of a second pipe, and the outlet of the second pipe is equipped with a first filling valve located inside the sealed insulated water tank. The first filling valve is equipped with an adjusting screw for adjusting the height. The outlet of the sealed insulated water tank is equipped with a third pipe, which contains a third filter and a water quality monitor for monitoring water quality. The outlet of the third pipe is equipped with a second filling valve, which is positioned above the inlet of the food processing equipment.

[0009] An electronic scale is fixedly placed at the bottom of the sealed insulated water tank. The electronic scale uses a high-precision weighing sensor, and the outside of the electronic scale is equipped with a display screen and buttons for setting the upper and lower weight limits.

[0010] A control cabinet is fixedly placed under the electronic scale. The control cabinet contains a controller, a first pneumatic solenoid valve, and a second pneumatic solenoid valve. The electronic scale is communicatively connected to the controller. The first pneumatic solenoid valve is wirelessly connected to the first filling valve. The second pneumatic solenoid valve is wirelessly connected to the second filling valve.

[0011] The device is equipped with a wireless remote control, which includes a first control key for opening the first filling valve, a second control key for opening the second filling valve, and a stop key for closing the first and second filling valves. The wireless remote control is wirelessly connected to the controller.

[0012] Furthermore, the variable frequency instantaneous water heater is set to have an outlet water temperature range of 20℃ to 75℃, with an outlet water temperature error of no more than ±1℃.

[0013] Furthermore, the electronic scale has a weighing accuracy of ±0.1 grams, is suitable for weighing ranges of 50 to 100 kilograms, and has a single water supply error of no more than 40 grams.

[0014] Furthermore, the body of the sealed insulated water tank includes a polyurethane insulation layer to reduce heat loss from the hot water inside the tank.

[0015] Furthermore, the filtration accuracy of the first filter, the second filter, and the third filter is not less than 5 micrometers.

[0016] Furthermore, the first pneumatic solenoid valve is wirelessly connected to the variable frequency heating module of the variable frequency instantaneous water heater, and the variable frequency heating module is activated only during the water inlet process and stops heating when the first pneumatic solenoid valve is closed.

[0017] Furthermore, the response time of the first pneumatic solenoid valve and the second pneumatic solenoid valve does not exceed 0.5 seconds.

[0018] Furthermore, the first, second, and third pipes are all insulated pipes.

[0019] Furthermore, the control cabinet is equipped with an audible and visual alarm, which is communicatively connected to the controller. The electronic scale has a built-in calculation module for calculating and storing the cumulative water supply weight, and an external reset button for zeroing the cumulative water supply weight. The electronic scale has a preset weight threshold. When the cumulative water supply weight exceeds the weight threshold, the electronic scale outputs an alarm signal to the controller. Upon receiving the signal, the controller drives the audible and visual alarm on the control cabinet to flash until the reset button is pressed, and the cumulative water supply weight is zeroed.

[0020] Furthermore, after pressing the reset button, the controller begins to flush the pipes and filters by briefly opening the first and second pneumatic solenoid valves to reduce impurity deposits.

[0021] The beneficial effects of this utility model are as follows:

[0022] This utility model uses a variable frequency instant water heater with real-time temperature monitoring technology. Through variable frequency heating, the water temperature is precisely controlled, and the outlet water temperature error can be controlled within ±1℃, which is far better than the ±5℃ error level of existing equipment. It can accurately match the stringent process requirements of water temperature in the production of noodle products.

[0023] In terms of water control, the traditional flow meter has been abandoned, and a high-precision electronic scale is used to directly weigh the water supply. Combined with the precise on / off control of the pneumatic solenoid valve, the error for adding 50-100 kg of water is only 20-40 grams. Compared with the 200-400 gram error of existing equipment, the water control accuracy is improved by more than 10 times, ensuring that the dough formula can be executed accurately.

[0024] In terms of energy utilization, variable frequency instantaneous water heaters only start heating during the water intake process and stop immediately after shutting off, achieving "heating on demand" and completely avoiding the intermittent energy consumption caused by continuous heat preservation in traditional equipment. Actual tests show that its energy consumption is reduced by 30% to 40% compared to existing equipment, which is in line with the trend of energy conservation and environmental protection.

[0025] Furthermore, the device allows for individual control of the water inlet and outlet of the sealed insulated water tank via buttons on a remote control, eliminating the need for operators to move around, simplifying the operation process and improving work efficiency. Simultaneously, the use of a pneumatic solenoid valve replaces the flow meter impeller structure, which is susceptible to impurities. Combined with a 304 stainless steel inner tank water heater and pipe filtration system, it effectively avoids malfunctions caused by scale and impurities, reducing the failure rate by more than 80% compared to existing equipment, significantly reducing maintenance costs and production interruption losses. Moreover, the instant heating design eliminates the waiting time for heating, ensuring a continuous and smooth production process. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a plan view of the present invention;

[0028] Figure 2 This refers to the communication connection involved in this utility model. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0031] The technical solution provided in this application will now be described in detail with reference to the accompanying drawings.

[0032] like Figure 1-2 As shown, this utility model provides a constant temperature and quantitative water supply device for food production, including a variable frequency instant water heater 1, a closed insulated water tank 2, an electronic scale 3, a control cabinet 4, and a wireless remote control 5.

[0033] The variable frequency instantaneous water heater 1 has a built-in variable frequency heating module 11 and a temperature sensor, which can accurately set its temperature within the range of 20℃ to 75℃, with an outlet water temperature error of no more than ±1℃. The inlet of the variable frequency instantaneous water heater 1 is connected to a first pipe 71, which contains a first filter 81 for preliminary filtration of the water entering the water heater 1. The outlet of the variable frequency instantaneous water heater 1 is connected to the inlet of a second pipe 72, which contains a second filter 82.

[0034] A sealed insulated water tank 2 is fixedly placed on top of an electronic scale 3, and the tank body of the sealed insulated water tank 2 includes a polyurethane insulation layer to reduce heat loss inside the tank; the water inlet of the sealed insulated water tank 2 is connected to the outlet of a second pipe 72, and the outlet of the second pipe 72 is provided with a first filling valve 91, which is located inside the sealed insulated water tank 2; the water outlet of the sealed insulated water tank 2 is provided with a third pipe 73, and a third filter 83 is provided inside the third pipe 73; the water outlet of the third pipe 73 is provided with a second filling valve 92 and a water quality monitor 11, which is used to monitor the water quality entering the food processing equipment 6 in real time; the second filling valve 92 is suspended above the water inlet of the food processing equipment 6.

[0035] To prevent heat loss, the first pipe 71, the second pipe 72, and the third pipe 73 are all insulated pipes; and to ensure the quality of the water added to the food processing equipment 6, the filtration accuracy of the first filter 81, the second filter 82, and the third filter 83 is not less than 5 microns.

[0036] In addition, to prevent residual water column from causing an increase in water volume error after the first filling valve 91 is closed, the first filling valve 91 is provided with an adjusting screw 10 for adjusting the first filling valve 91. The adjusting screw 10 is a ball screw structure, which makes the first filling valve 91 move up and down along the screw. When in use, the outlet of the first filling valve 91 is slightly higher than the upper limit of the set water volume.

[0037] For example, if the initial water volume is set to 50 kg and the water level in the sealed insulated water tank 2 is 50 cm, then the outlet of the first filling valve 91 is adjusted to 50.5 cm.

[0038] The electronic scale 3 is fixedly placed on the upper part of the control cabinet 4. The electronic scale 3 uses a high-precision weighing sensor. The weighing range of the electronic scale 3 is 1~200 kg, and the weighing accuracy is ±0.1 g (for the 50~100 kg range). The electronic scale 3 is equipped with a display screen for displaying the upper and lower weight limits and buttons for setting the upper and lower weight limits.

[0039] The control cabinet 4 contains a first pneumatic solenoid valve 41, a second pneumatic solenoid valve 42, and a controller 43. The electronic scale 3 is communicatively connected to the controller 43. The first pneumatic solenoid valve 41 is wirelessly connected to the first filling valve 91. The first solenoid valve is used to control the opening and closing of the first filling valve 91. The first pneumatic solenoid valve 41 is also wirelessly connected to the variable frequency heating module 11 of the variable frequency instantaneous water heater 1, so that the variable frequency heating module 11 only starts when water is added to the sealed insulated water tank 2. The second pneumatic solenoid valve 42 is wirelessly connected to the second filling valve 92 and is used to control the opening and closing of the second filling valve 92. The response time of both the first pneumatic solenoid valve 41 and the second pneumatic solenoid valve 42 does not exceed 0.5 seconds, ensuring timely and accurate control.

[0040] The control cabinet 4 is also equipped with an audible and visual alarm 12, which is communicatively connected to the controller 43. In addition to precise control of single water supply volume, the electronic scale 3 is configured to calculate the cumulative water supply weight. The electronic scale 3 can store the total cumulative water supply weight internally and can reset the cumulative value to zero via a dedicated external reset button. The electronic scale 3 has a preset weight threshold (e.g., 10,000 kg). When the cumulative water supply weight exceeds this threshold, the electronic scale 3 outputs an alarm signal to the controller 43. Upon receiving this signal, the controller 43 immediately activates the audible and visual alarm 12 on the control cabinet 4 to continuously flash an alarm, indicating to the operator that the equipment has reached its regular maintenance cycle. This alarm will continue until the operator presses the reset button to zero the cumulative weight.

[0041] In addition, after pressing the reset button, the controller 43 automatically starts the "pulse water flow flushing" function, that is, by briefly opening the first pneumatic solenoid valve 41 and the second pneumatic solenoid valve 42, the pipes and filters are flushed to reduce the deposition of impurities.

[0042] The wireless remote control 5 is equipped with a first control key 51 for opening the first filling valve 91, a second control key 52 for opening the second filling valve 92, and a stop key 53 that can close the first filling valve 91 and the second filling valve 92 at any time. The wireless remote control 5 is wirelessly connected to the controller 43.

[0043] The working process of this embodiment is as follows:

[0044] According to the specific food production process requirements, the outlet water temperature is set to 28℃ on the variable frequency instant water heater 1. At the same time, the upper limit weight is set to 50.5 kg and the lower limit weight is set to 0.5 kg on the electronic scale 3 by pressing the button. The height of the first filling valve 91 is adjusted to be slightly higher than the upper limit water level.

[0045] Water storage stage: The operator presses the first control button 51 on the wireless remote control 5. The wireless remote control 5 transmits the water filling signal to the controller 43. The controller 43 sends an opening command to the first pneumatic solenoid valve 41. The first pneumatic solenoid valve 41 then opens the first filling valve 91. At the same time, the first pneumatic solenoid valve 41 triggers the variable frequency heating module 11 of the variable frequency instant water heater 1 to start working. The constant temperature hot water at 28°C then flows into the sealed insulated water tank 2 through the second pipe 72. During the water storage process, the electronic scale 3 monitors the weight of the water in the sealed insulated water tank 2 in real time. When the weight reaches the upper limit of 50.5 kg, the electronic scale 3 sends a signal to the controller 43. The controller 43 then sends a closing command to the first pneumatic solenoid valve 41. The first pneumatic solenoid valve 41 then closes the first filling valve 91 and stops the variable frequency instant water heater 1 from heating.

[0046] Water addition stage: When the food processing equipment 6 needs water, the operator presses the second control button 52 on the wireless remote control 5. The wireless remote control 5 transmits the water supply signal to the controller 43. The controller 43 sends an opening command to the second pneumatic solenoid valve 42. The second pneumatic solenoid valve 42 then opens the second filling valve 92. The constant temperature water in the sealed insulated water tank 2 flows into the food processing equipment 6 through the third pipe 73. During the water addition process, the electronic scale 3 monitors the weight of the water in the sealed insulated water tank 2 in real time. When the weight drops to the lower limit of 0.5 kg, the electronic scale 3 sends a signal to the controller 43. The controller 43 then sends a closing command to the second pneumatic solenoid valve 42. The second pneumatic solenoid valve 42 then closes the second filling valve 92, stopping the addition of water to the food processing equipment 6.

[0047] By repeating the water storage and water filling stages, continuous and stable constant-temperature quantitative water supply can be achieved.

[0048] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A constant temperature and quantitative water supply device for food production, characterized in that, include: A variable frequency instantaneous water heater has a built-in variable frequency heating module and a temperature sensor. The water inlet of the variable frequency instantaneous water heater is connected to an external water source through a first pipe, and a first filter is installed in the first pipe. The water outlet of the variable frequency instantaneous water heater is connected to the water inlet of a second pipe, and a second filter is installed in the second pipe. A sealed insulated water tank has its inlet connected to the outlet of a second pipe, and the outlet of the second pipe is equipped with a first filling valve located inside the sealed insulated water tank. The first filling valve is equipped with an adjusting screw for adjusting the height. The outlet of the sealed insulated water tank is equipped with a third pipe, which contains a third filter and a water quality monitor for monitoring water quality. The outlet of the third pipe is equipped with a second filling valve, which is positioned above the inlet of the food processing equipment. An electronic scale is fixedly placed at the bottom of the sealed insulated water tank. The electronic scale uses a high-precision weighing sensor, and the outside of the electronic scale is equipped with a display screen and buttons for setting the upper and lower weight limits. A control cabinet is fixedly placed under the electronic scale. The control cabinet contains a controller, a first pneumatic solenoid valve, and a second pneumatic solenoid valve. The electronic scale is communicatively connected to the controller. The first pneumatic solenoid valve is wirelessly connected to the first filling valve. The second pneumatic solenoid valve is wirelessly connected to the second filling valve. The device is equipped with a wireless remote control, which includes a first control key for opening the first filling valve, a second control key for opening the second filling valve, and a stop key for closing the first and second filling valves. The wireless remote control is wirelessly connected to the controller.

2. The constant temperature and quantitative water supply device for food production according to claim 1, characterized in that, The variable frequency instantaneous water heater is set to have a water temperature range of 20℃ to 75℃, with a water temperature error of no more than ±1℃.

3. The constant temperature and quantitative water supply device for food production according to claim 1, characterized in that, The electronic scale has a weighing accuracy of ±0.1 grams, is suitable for weighing ranges of 50 to 100 kilograms, and has a single water supply error of no more than 40 grams.

4. A constant temperature and quantitative water supply device for food production according to claim 1, characterized in that, The sealed insulated water tank includes a polyurethane insulation layer to reduce heat loss from the hot water inside the tank.

5. A constant temperature and quantitative water supply device for food production according to claim 1, characterized in that, The filtration accuracy of the first filter, the second filter, and the third filter is not less than 5 micrometers.

6. A constant temperature and quantitative water supply device for food production according to claim 1, characterized in that, The first pneumatic solenoid valve is wirelessly connected to the variable frequency heating module of the variable frequency instantaneous water heater. The variable frequency heating module is activated only during the water inlet process and stops heating when the first pneumatic solenoid valve is closed.

7. A constant temperature and quantitative water supply device for food production according to claim 1, characterized in that, The response time of the first pneumatic solenoid valve and the second pneumatic solenoid valve does not exceed 0.5 seconds.

8. A constant temperature and quantitative water supply device for food production according to claim 1, characterized in that, The first, second, and third pipes are all insulated pipes.

9. A constant temperature and quantitative water supply device for food production according to claim 1, characterized in that, The control cabinet is equipped with an audible and visual alarm, which is communicatively connected to the controller. The electronic scale has a built-in calculation module for calculating and storing the cumulative water supply weight, and an external reset button for clearing the cumulative water supply weight to zero. The electronic scale has a preset weight threshold. When the cumulative water supply weight exceeds the weight threshold, the electronic scale outputs an alarm signal to the controller. Upon receiving the signal, the controller drives the audible and visual alarm on the control cabinet to flash until the reset button is pressed, clearing the cumulative water supply weight to zero.

10. A constant temperature and quantitative water supply device for food production according to claim 9, characterized in that, After the reset button is pressed, the controller begins to flush the pipes and filters by briefly opening the first and second pneumatic solenoid valves to reduce impurity deposits.

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