Energy-saving system for thermal denaturation section of pea albumin

Abstract

An energy-saving system for a thermal denaturation section of pea albumin comprises a material delivery pump, a preheating heat exchanger, a steam heating device, a pressure tank and a cooling heat exchanger, and the material delivery pump is provided with a material inlet and a material outlet; the preheating heat exchanger is provided with a cold side feeding port, a cold side discharging port, a hot side feeding port and a hot side discharging port. The steam heating device is connected with a feeding pipeline, a discharging pipeline and a steam inlet pipeline; the cooling heat exchanger is provided with a cooling material inlet pipe, a cooling material outlet pipe, a cooling water inlet pipe and a cooling water removing pipe. High-temperature to-be-cooled materials output by the pressure tank are subjected to heat exchange with newly-fed materials in the preheating heat exchanger, so that the amount of steam used for heating the newly-fed materials by the steam heating device is reduced, and the amount of cooling water used for cooling at the cooling heat exchanger is reduced; and meanwhile, a temperature sensor is arranged to monitor the temperature of the materials, and an automatic control device is used for automatically controlling the opening degrees of valves at the steam inlet channel and the cooling water inlet channel, so that the temperature is controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of pea albumin, in particular to an energy-saving system for a pea albumin thermal denaturation section. Background Art

[0002] Pea albumin is a water-soluble protein recovered from the liquid produced by extracting and isolating pea flour. Pea albumin powder contains high-quality protein and all 18 essential amino acids. Pea albumin powder has numerous benefits for the human body and is easily absorbed by the body.

[0003] Thermal denaturation is a crucial step in pea albumin production. Industrial production requires high-temperature treatment to denature and flocculate the dissolved pea albumin. This process is then followed by separation, neutralization, sterilization, and drying. However, traditional direct heat exchange and cooling methods consume significant amounts of steam and cooling water, leading to high energy consumption.

[0004] Therefore, in view of the shortcomings of the existing technology, it is necessary to design an energy-saving system for the thermal denaturation section of pea albumin to solve the above problems.

[0005] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solution of the present invention and facilitating the understanding of those skilled in the art. It cannot be assumed that the above contents are well known to those skilled in the art simply because they are explained in the background technology of the present invention. Utility Model Content

[0006] In order to overcome the deficiencies in the above-mentioned prior art, the purpose of the present utility model is to disclose an energy-saving system for the thermal denaturation section of pea albumin, which is used to solve the problem of low energy utilization efficiency in the thermal denaturation section leading to excessive steam and cooling water consumption in traditional pea albumin production.

[0007] The utility model discloses an energy-saving system for a pea albumin thermal denaturation process, comprising a material conveying pump, a preheating heat exchanger, a steam heating device, a pressure tank and a cooling heat exchanger. The material conveying pump is provided with a material inlet and a material outlet, the material inlet is used to be connected to an external material conveying channel, and the material outlet is used to convey foreign material to the preheating heat exchanger; the preheating heat exchanger is used to preliminarily preheat the foreign material to increase its initial temperature, and is provided with a cold side feed port, a cold side discharge port, a hot side feed port and a hot side discharge port, and the cold side feed port is connected to the material outlet; the steam heating device is used to quickly heat the foreign material to the temperature required for the pea albumin thermal denaturation process, and is connected to a feed pipeline, a discharge pipeline and a steam inlet pipeline, the feed pipeline is connected to the cold side discharge port, and the steam inlet pipeline is used to connect to the external The steam generating device is connected to the steam heating device to deliver high-temperature steam; the pressure tank is used as a thermal denaturation reaction container for foreign materials to ensure that pea albumin can achieve stable and sufficient thermal denaturation reaction. The feed port of the pressure tank is connected to the discharge pipeline, and the discharge port of the pressure tank is connected to the hot side feed port, so that the high-temperature material output by the pressure tank can be heat exchanged with the unheated foreign material at the preheating heat exchanger; the cooling heat exchanger is used to cool the material after the thermal denaturation reaction. The cooling heat exchanger is provided with a cooling material inlet pipe, a cooling material outlet pipe, a cooling water inlet pipe and a cooling water removal pipe. The cooling material inlet pipe is connected to the discharge pipeline. The cooling water inlet pipe is used to connect to an external cooling water supply device to deliver cooling water to the cooling heat exchanger. The cooling water removal pipe is used to connect to an external cooling water recovery device to discharge the used cooling water.

[0008] Optimal technical solution: The preheating heat exchanger is a plate heat exchanger, which reduces the installation volume and improves the heat transfer efficiency.

[0009] The preferred technical solution is that the steam heating device is a steam jet liquefier, and a first check valve and a first regulating valve are sequentially provided on the steam inlet pipeline from left to right, and a first pressure gauge is also provided on both ends of the first regulating valve.

[0010] Preferred technical solution: A second regulating valve and a second check valve are provided on the feed pipeline from left to right, and a second pressure gauge is provided on both ends of the second regulating valve; a first temperature sensor and a third pressure gauge are provided on the discharge pipeline.

[0011] A preferred technical solution: The first regulating valve is an automatic regulating valve. The signal output terminal of the first temperature sensor is connected to a first automatic temperature control device. The first regulating valve is electrically connected to the first automatic temperature control device. The first automatic temperature control device can control the opening of the first regulating valve based on feedback from the first temperature sensor to achieve automatic temperature control.

[0012] Optimal technical solution: The cooling heat exchanger is a plate heat exchanger, which reduces the installation volume and improves the heat transfer efficiency.

[0013] A preferred technical solution: A second temperature sensor is installed on the cooling material outlet pipe. The signal output end of the second temperature sensor is connected to a second automatic temperature control device. A third regulating valve is installed on the cooling water inlet pipe. The third regulating valve is an automatic regulating valve and is electrically connected to the second automatic temperature control device. The second automatic temperature control device can control the opening of the third regulating valve based on feedback from the second temperature sensor to achieve the purpose of automatic temperature control.

[0014] Optimal technical solution: The feed port of the pressure tank is located at the lower end, and the discharge port is located at the upper end, ensuring that the materials are first-in-first-out.

[0015] Optimal technical solution: the material conveying pump is a centrifugal pump.

[0016] Preferred technical solution: The lift of the material conveying pump is ≥50m.

[0017] Due to the application of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0018] The utility model discloses an energy-saving system for a pea albumin thermal denaturation section, which performs heat exchange on the high-temperature material to be cooled outputted from a pressure tank and the newly-input material in a preheating heat exchanger, thereby increasing the initial temperature of the newly-input material and reducing the amount of steam used by a steam heating device to heat the newly-input material. The temperature of the high-temperature material to be cooled decreases during the heat exchange process, and the amount of cooling water used for cooling the material at the cooling heat exchanger is reduced, thereby reducing the production energy consumption of the pea albumin thermal denaturation section. At the same time, a temperature sensor is provided to monitor the material temperature, and an automatic control device is used to automatically control the valve openings at the steam inlet channel and the cooling water inlet channel according to the monitoring result, thereby realizing automatic control of the material temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic structural diagram of an energy-saving system for the thermal denaturation section of pea albumin in the utility model;

[0021] Figure 2 This is a schematic structural diagram of the steam heating device in the present utility model;

[0022] Figure 3 It is a structural diagram of the cooling heat exchanger in the utility model.

[0023] In the above drawings, 1. material conveying pump; 11. material inlet; 12. material outlet; 2. preheating heat exchanger; 21. cold side feed port; 22. cold side discharge port; 23. hot side feed port; 24. hot side discharge port; 3. steam heating device; 31. feed pipeline; 31a. second regulating valve; 31b. second check valve; 31c. second pressure gauge; 32. discharge pipeline; 32a. first temperature sensor; 32b. third pressure gauge; 33. steam inlet pipeline; 33a. first check valve; 33b. first regulating valve; 33c. first pressure gauge; 34. first automatic temperature control device; 4. pressure tank; 5. cooling heat exchanger; 51. cooling material inlet pipe; 52. cooling material outlet pipe; 52a. second temperature sensor; 53. cooling water inlet pipe; 53a. third regulating valve; 54. cooling water pipe; 55. second automatic temperature control device. DETAILED DESCRIPTION

[0024] The following describes the implementation of the present invention through specific embodiments. People familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application are described here. In addition, the terms "including" and "having" and their synonyms are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0026] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0027] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0028] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," "sleeved," and "fitted" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or internal communication between two devices, elements, or components. For another example, "fitted" can mean complete or partial contact. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] Example:

[0031] like Figure 1 As shown, the utility model discloses an energy-saving system for the thermal denaturation section of pea albumin, including a material conveying pump 1, a preheating heat exchanger 2, a steam heating device 3, a pressure tank 4 and a cooling heat exchanger 5. The main components of the utility model are described in detail below:

[0032] like Figure 1 As shown, the material conveying pump 1 is provided with a material inlet 11 and a material outlet 12 , and the material inlet 11 is used to connect with an external material conveying channel.

[0033] like Figure 1 、 Figure 2 and Figure 3 As shown, the preheating heat exchanger 2 is provided with a cold side feed port 21, a cold side discharge port 22, a hot side feed port 23 and a hot side discharge port 24. The cold side feed port 21 is connected to the material outlet 12, and is used to deliver the material delivered by the material delivery pump 1 to the cold side of the preheating heat exchanger 2. It should be noted that the cold side of the preheating heat exchanger 2 and the hot side of the preheating heat exchanger 2 are only used to distinguish between two different delivery channels in the preheating heat exchanger 2, and do not specifically refer to the location of their connection ports.

[0034] like Figure 1 As shown, the steam heating device 3 is connected to a feed pipeline 31, a discharge pipeline 32 and a steam inlet pipeline 33. The feed pipeline 31 is connected to the cold side discharge port 22, and the steam inlet pipeline 33 is used to connect to an external steam generating device to deliver high-temperature steam to the steam heating device 3.

[0035] like Figure 1As shown, the feed port of the pressure tank 4 is connected to the discharge pipeline 32, which is used to feed the heated high-temperature material into the pressure tank 4 for thermal denaturation reaction; the discharge port of the pressure tank 4 is connected to the hot side feed port 23, which is used to transport the material after the thermal denaturation reaction from the pressure tank 4 to the hot side of the preheating heat exchanger 2.

[0036] like Figure 1 As shown, the cooling heat exchanger 5 is provided with a cooling material inlet pipe 51, a cooling material outlet pipe 52, a cooling water inlet pipe 53 and a cooling water removal pipe 54. The cooling water inlet pipe 53 is used to connect to an external cooling water supply device to transport cooling water to the cooling heat exchanger 5; the cooling water removal pipe 54 is used to connect to an external cooling water recovery device to discharge the used cooling water; the cooling material inlet pipe 51 is connected to the discharge pipe 32, and is used to transport the cooled material to the cooling heat exchanger 5 for cooling; the cooling material outlet pipe 52 is used to transport the cooled material to the next work section.

[0037] refer to Figure 1 、 Figure 2 and Figure 3 As shown, the usage method and principle of the utility model are as follows: when in use, the external cold material is transported to the steam heating device 3 through the material conveying pump 1 and the preheating heat exchanger 2 for heating. The material heated to the preset temperature is directly transported to the pressure tank 4 for thermal denaturation reaction. The high-temperature material after the reaction passes through the preheating heat exchanger 2 and is transported to the cooling heat exchanger 5 for cooling treatment. In this process, the external cold material passing through the preheating heat exchanger 2 and the high-temperature material exchange heat, so that the initial temperature of the cold material increases, which can reduce the amount of steam used for heating in the steam heating device 3; the temperature of the high-temperature material is reduced, which can reduce the amount of cooling water consumed in cooling at the cooling heat exchanger 5, thereby achieving the purpose of energy saving.

[0038] like Figure 1 As shown, in order to further reduce energy consumption, the preheating heat exchanger 2 and the cooling heat exchanger 5 adopt plate heat exchangers, which occupy little space and have high heat exchange efficiency.

[0039] like Figure 1 and Figure 2 As shown, in order to further reduce steam consumption, the steam heating device 3 is a steam jet liquefier. Compared with the traditional heater, the steam jet liquefier directly mixes the feed liquid and steam, thereby improving the heat exchange efficiency of the steam and saving 10% to 15% of steam consumption.

[0040] A first check valve 33a and a first regulating valve 33b are provided on the steam inlet pipeline 33 from left to right, and a first pressure gauge 33c is also provided on the left and right ends of the first regulating valve 33b; the first check valve 33a is used to prevent the steam from flowing back due to excessive pressure at the feed pipeline 31, thereby ensuring the smooth entry of steam into the steam heating device 3; the first regulating valve 33b is used to control the steam inlet flow rate of the steam heating device 3; and the first pressure gauge 33c is used to detect the steam pressure in the pipelines before and after the first regulating valve 33b.

[0041] A second regulating valve 31a and a second check valve 31b are provided on the feed pipeline 31 from left to right; the second regulating valve 31a is used to control the material feed flow rate of the steam heating device 3; the second check valve 31b is used to prevent the steam pressure delivered by the steam inlet pipeline 33 from being too high, causing material backflow, thereby ensuring smooth feeding into the steam heating device 3; second pressure gauges 31c are also provided on the left and right ends of the second regulating valve 31a, and the second pressure gauges 31c are used to detect the material pressure in the pipelines before and after the second regulating valve 31a.

[0042] The discharge pipeline 32 is provided with a first temperature sensor 32a and a third pressure gauge 32b for detecting the discharge temperature of the steam heating device 3 ; the third pressure gauge 32b is used to monitor the material pressure in the discharge pipeline 32 in real time.

[0043] like Figure 1 and Figure 2 As shown, to achieve automatic control of the steam heating device 3, the first regulating valve 33b is an automatic regulating valve, and the signal output end of the first temperature sensor 32a is connected to the first automatic temperature control device 34. The first regulating valve 33b is electrically connected to the first automatic temperature control device 34. The first automatic temperature control device 34 realizes interlocking control between the first temperature sensor 32a and the first regulating valve 33b. The opening of the first regulating valve 33b controls the steam inlet flow rate, thereby achieving automatic control of the discharge temperature of the steam heating device 3. It should be noted that in other embodiments, the first automatic temperature control device 34 may not be provided, and the first temperature sensor 32a and the first regulating valve 33b may be directly used for interlocking control.

[0044] like Figure 1 and Figure 3As shown, to achieve automatic control of the cooling heat exchanger 5, a second temperature sensor 52a is provided on the cooling material outlet pipe 52. The second temperature sensor 52a is used to monitor the material temperature discharged from the cooling heat exchanger 5 in real time. The signal output end of the second temperature sensor 52a is connected to a second automatic temperature control device 55. A third regulating valve 53a is provided on the cooling water inlet pipe 53. The third regulating valve 53a is an automatic regulating valve and is electrically connected to the second automatic temperature control device 55. The second automatic temperature control device 55 automatically controls the opening of the third regulating valve 53a based on the interlocking signals between the second temperature sensor 52a and the third regulating valve 53a, thereby controlling the cooling water inlet flow rate, thereby achieving automatic control of the material temperature discharged from the cooling heat exchanger 5.

[0045] like Figure 1 As shown, in order to improve the stability of the thermal denaturation reaction, the feed port of the pressure tank 4 is located at the lower end and the discharge port is located at the upper end, ensuring that the materials are first in first out and that the pea albumin in the material can be stably and fully thermally denatured.

[0046] like Figure 1 As shown, in order to improve the stability of material transportation, the material conveying pump 1 is a centrifugal pump, and the head of the material conveying pump 1 is ≥50m, which effectively avoids pipeline transportation blockage.

[0047] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An energy-saving system for the thermal denaturation of pea albumin, characterized by: The invention comprises a material conveying pump (1), a preheating heat exchanger (2), a steam heating device (3), a pressure tank (4) and a cooling heat exchanger (5), wherein the material conveying pump (1) is provided with a material inlet (11) and a material outlet (12); the preheating heat exchanger (2) is provided with a cold side feed port (21), a cold side discharge port (22), a hot side feed port (23) and a hot side discharge port (24), wherein the cold side feed port (21) is connected to the material outlet (12); the steam heating device (3) is connected with a feed pipe (31), a hot side discharge port (22), a hot side feed port (23) and a hot side discharge port (24). The discharge pipeline (32) and the steam inlet pipeline (33) are connected, and the feed pipeline (31) is connected to the cold side discharge port (22); the feed port of the pressure tank (4) is connected to the discharge pipeline (32), and the discharge port of the pressure tank (4) is connected to the hot side feed port (23); the cooling heat exchanger (5) is provided with a cooling material inlet pipe (51), a cooling material outlet pipe (52), a cooling water inlet pipe (53) and a cooling water removal pipe (54), and the cooling material inlet pipe (51) is connected to the discharge pipeline (32).

2. The energy-saving system for the thermal denaturation of pea albumin according to claim 1, characterized in that: The preheating heat exchanger (2) is a plate heat exchanger.

3. The energy-saving system for the thermal denaturation of pea albumin according to claim 1, characterized in that: The steam heating device (3) is a steam jet liquefier, and a first check valve (33a) and a first regulating valve (33b) are sequentially provided on the steam inlet pipeline (33) from left to right. First pressure gauges (33c) are also provided at the left and right ends of the first regulating valve (33b).

4. The energy-saving system for the thermal denaturation of pea albumin according to claim 3, characterized in that: The feed pipeline (31) is provided with a second regulating valve (31a) and a second check valve (31b) in sequence from left to right, and second pressure gauges (31c) are provided at both left and right ends of the second regulating valve (31a); the discharge pipeline (32) is provided with a first temperature sensor (32a) and a third pressure gauge (32b).

5. The energy-saving system for the thermal denaturation of pea albumin according to claim 4, characterized in that: The first regulating valve (33b) is an automatic regulating valve, the signal output end of the first temperature sensor (32a) is connected to a first automatic temperature control device (34), and the first regulating valve (33b) is electrically connected to the first automatic temperature control device (34).

6. The energy-saving system for the thermal denaturation of pea albumin according to claim 1, characterized in that: The cooling heat exchanger (5) is a plate heat exchanger.

7. The energy-saving system for the thermal denaturation of pea albumin according to claim 6, characterized in that: A second temperature sensor (52a) is provided on the cooling material outlet pipe (52), and a signal output end of the second temperature sensor (52a) is connected to a second temperature automatic control device (55). A third regulating valve (53a) is provided on the cooling water inlet pipe (53), and the third regulating valve (53a) is an automatic regulating valve. The third regulating valve (53a) is electrically connected to the second temperature automatic control device (55).

8. The energy-saving system for the thermal denaturation of pea albumin according to claim 1, characterized in that: The feed port of the pressure tank (4) is located at the lower end, and the discharge port is located at the upper end.

9. The energy-saving system for the thermal denaturation of pea albumin according to claim 1, characterized in that: The material conveying pump (1) is a centrifugal pump.

10. The energy-saving system for the thermal denaturation of pea albumin according to claim 9, characterized in that: The lift of the material conveying pump (1) is ≥50m.

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