Fermentation system based on waste heat utilization of data center

Abstract

The invention relates to the technical field of fermentation, in particular to a fermentation system based on waste heat utilization of a data center, comprising: a fermentation tank heat exchange group comprising a high-temperature fermentation tank, a medium-temperature fermentation tank and a low-temperature fermentation tank which are arranged in parallel; the fermentation tank heat supply adjusting group comprises a high-temperature liquid buffer tank, a medium-temperature liquid buffer tank and a low-temperature liquid buffer tank which are arranged in parallel; a water outlet of the high-temperature liquid buffer tank is connected with the high-temperature fermentation tank, a water outlet of the medium-temperature liquid buffer tank is connected with the medium-temperature fermentation tank, and a water outlet of the low-temperature liquid buffer tank is connected with a water inlet of the low-temperature fermentation tank; the data center cooling group comprises a first water storage tank connected with the data center through a water inlet pipeline and a second water storage tank connected with the data center through a water drainage pipeline; the water inlet of the first water storage tank is also connected with the high-temperature fermentation tank, the medium-temperature fermentation tank and the low-temperature fermentation tank at the same time, and the water outlet of the second water storage tank is also connected with the high-temperature liquid buffer tank, the medium-temperature liquid buffer tank and the low-temperature liquid buffer tank at the same time.

Description

Technical Field

[0001] The present invention relates to the field of fermentation technology, and in particular to a fermentation system based on waste heat utilization of a data center. Background Art

[0002] During the fermentation process, it is necessary to maintain appropriate fermentation conditions for the growth of production bacteria and product synthesis, one of which is temperature. Temperature is an important condition to ensure the activity of various enzymes. The growth of microorganisms and product synthesis must be carried out at their respective suitable temperatures. Therefore, a stable and most suitable temperature environment must be ensured during the fermentation process. Fermentation tank fermentation can be divided into three temperature ranges: 50-65℃ is called high-temperature fermentation. For example, the fermentation of kimchi needs to be carried out at high temperature to allow microorganisms to metabolize faster to produce sour and spicy tastes. 20-45℃ is called medium-temperature fermentation. For example, the fermentation of beer needs to be carried out at medium temperature to allow yeast to ferment alcohol and carbon dioxide faster. Below 20℃ is called low-temperature fermentation. For example, the fermentation of yogurt needs to be carried out at low temperature to maintain the growth of organisms and the taste of yogurt.

[0003] Generally speaking, the influence of temperature changes on the fermentation process is manifested in two aspects: on the one hand, it affects the fermentation process by affecting the growth and reproduction of production bacteria and the synthesis of metabolites; on the other hand, it affects the kinetic characteristics of fermentation and the biosynthesis of products by affecting the physical properties of the fermentation liquid (such as the viscosity of the fermentation liquid, the solubility and transfer rate of the matrix and oxygen in the fermentation liquid, etc.). The main methods of heating the common fermentation tank are electric heating film heating, solar heating, fossil energy combustion heating and geothermal heating, but electric heating film heating requires the consumption of high-grade electricity; solar heating is greatly affected by the weather; fossil energy combustion has problems such as low energy utilization and pollution emissions; geothermal warming is limited by geological conditions and has a limited scope of application. Therefore, it is very important to use a suitable heating method to control the fermentation temperature of the fermentation tank within an appropriate range.

[0004] In the construction of data centers, due to the installation of a large number of cabinets and other hardware equipment, as well as the laying of a large number of cables, the internal temperature of the data center is relatively high when it is in use, which may affect the operation of the equipment in the data center. In order to reduce the temperature in the data center computer room, a refrigeration system is generally installed in the data center computer room to reduce the temperature in the data center. Common refrigeration methods include air conditioning refrigeration mode or liquid cooling mode. Among them, the data center liquid cooling system can capture heat flow near the CPU and other parts, and the waste heat temperature can usually reach 60-75°C. And because data centers are generally large in scale and need to operate uninterruptedly, the waste heat generated by their equipment has the characteristics of relatively stable heat and high heat generation. The direct discharge of the waste hot water generated by the above-mentioned liquid cooling mode requires cooling treatment before it can be recycled to the data center, which does not cause waste of heat energy and increases the workload of subsequent cooling treatment.

[0005] In view of the problem of preheating waste in the above-mentioned data center and the need for heating in the fermentation system, it is necessary to design a new cooling and heating system that can solve the above two problems at the same time. Summary of the invention

[0006] The purpose of the present invention is to provide a fermentation system based on waste heat utilization of a data center, so as to solve the technical problem of both waste heat reuse of a data center and heating of a fermentation tank.

[0007] The fermentation system based on data center waste heat utilization of the present invention is implemented as follows: A fermentation system based on waste heat utilization of a data center, comprising: A fermentation tank heat exchange group, which includes a high-temperature fermentation tank, a medium-temperature fermentation tank and a low-temperature fermentation tank arranged in parallel; A fermentation tank heat supply regulating group, comprising a high-temperature liquid cache box, a medium-temperature liquid cache box and a low-temperature liquid cache box arranged in parallel; wherein the water outlet of the high-temperature liquid cache box is connected to the high-temperature fermentation tank, the water outlet of the medium-temperature liquid cache box is connected to the medium-temperature fermentation tank, and the water outlet of the low-temperature liquid cache box is connected to the water inlet of the low-temperature fermentation tank; A data center cooling group, comprising a first water tank connected to the data center via a water inlet pipe and a second water tank connected to the data center via a drainage pipe; wherein the water inlet of the first water tank is also connected to the drainage outlets of a high-temperature fermentation tank, a medium-temperature fermentation tank and a low-temperature fermentation tank, and the water outlet of the second water tank is also connected to the water inlets of a high-temperature liquid cache tank, a medium-temperature liquid cache tank and a low-temperature liquid cache tank.

[0008] In an optional implementation of the present invention, a first water valve is provided between the second water storage tank and the high-temperature liquid cache tank, a second water valve is provided between the second water storage tank and the medium-temperature liquid cache tank, and a third water valve is provided between the second water storage tank and the low-temperature liquid cache tank.

[0009] In an optional implementation of the present invention, the high-temperature liquid cache tank, the medium-temperature liquid cache tank and the low-temperature liquid cache tank are respectively configured with a first temperature sensor.

[0010] In an optional implementation of the present invention, the high-temperature liquid cache tank, the medium-temperature liquid cache tank and the low-temperature liquid cache tank are respectively configured with a first liquid level meter.

[0011] In an optional implementation of the present invention, the sum of the volumes of the high-temperature liquid cache tank, the medium-temperature liquid cache tank and the low-temperature liquid cache tank is greater than the volume of the second water storage tank.

[0012] In an optional implementation of the present invention, the high-temperature liquid cache tank, the medium-temperature liquid cache tank and the low-temperature liquid cache tank are also connected to the first water storage tank through a branch respectively.

[0013] In an optional implementation of the present invention, each of the branch lines is provided with a first water pump.

[0014] In an optional implementation of the present invention, the first water storage tank and the second water storage tank are both equipped with a second temperature sensor and a second liquid level meter.

[0015] In an optional implementation of the present invention, a second water pump is further provided on the drainage pipeline between the second water storage tank and the data center.

[0016] In an optional implementation of the present invention, the high-temperature fermentation tank, the medium-temperature fermentation tank and the low-temperature fermentation tank each have a heat exchange chamber suitable for water circulation.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects: the fermentation system based on the waste heat utilization of the data center of the present invention utilizes the waste heat recovered from the data center, and uses the waste heat recovered from the data center to heat the fermentation pools in different temperature zones. On the one hand, the waste heat of the data center is recovered, the temperature of the data center is maintained stable, and the data center operates stably and efficiently; on the other hand, the waste heat recovered from the data center is used to provide heat for the fermentation pools in different temperature zones, which is not limited by various factors and has a stable heat source, and also has the characteristics of high energy utilization, low carbon and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic structural diagram of a fermentation system based on waste heat utilization of a data center according to the present invention in an optional implementation case; Figure 2 Shown is a schematic structural diagram of a fermentation system based on waste heat utilization of a data center according to another optional implementation of the present invention; In the figure: data center 1, second water pump 2, second water storage tank 3, third water valve 4, low-temperature liquid cache tank 5, low-temperature fermentation tank 6, second water valve 7, medium-temperature liquid cache tank 8, medium-temperature fermentation tank 9, first water valve 10, high-temperature liquid cache tank 11, high-temperature fermentation tank 12, first water storage tank 13. DETAILED DESCRIPTION

[0019] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0020] See also Figure 1 and Figure 2As shown, this embodiment provides a fermentation system based on the waste heat utilization of the data center, including: a fermentation tank heat exchange group, a fermentation tank heat supply adjustment group and a data center cooling group. A water circulation coordination structure is formed between the three, so that the water containing waste heat formed by cooling the data center 1 can be used to heat the fermentation tank, and the fermentation tank heat supply adjustment group is to adjust the temperature of the water containing waste heat, so that the waste hot water after temperature adjustment can be used for heating fermentation tanks in different temperature zones.

[0021] Next, in detail, first, the fermentation tank heat exchange group includes a high-temperature fermentation tank 12, a medium-temperature fermentation tank 9 and a low-temperature fermentation tank 6 arranged in parallel. Here, the high-temperature fermentation tank 12, the medium-temperature fermentation tank 9 and the low-temperature fermentation tank 6 respectively have a heat exchange chamber suitable for water circulation. When the water with temperature passes through the heat exchange chamber, the high-temperature fermentation tank 12, the medium-temperature fermentation tank 9 and the low-temperature fermentation tank 6 are heated, and at the same time, the water with temperature is cooled to become normal temperature water.

[0022] Next is the fermentation tank heat supply regulation group, which includes a high-temperature liquid cache tank 11, a medium-temperature liquid cache tank 8 and a low-temperature liquid cache tank 5 arranged in parallel; the water outlet of the high-temperature liquid cache tank 11 is connected to the high-temperature fermentation tank 12, the water outlet of the medium-temperature liquid cache tank 8 is connected to the medium-temperature fermentation tank 9, and the water outlet of the low-temperature liquid cache tank 5 is connected to the water inlet of the low-temperature fermentation tank 6. The high-temperature liquid cache tank 11, the medium-temperature liquid cache tank 8 and the low-temperature liquid cache tank 5 are used to achieve the temperature of the water to be introduced into the high-temperature fermentation tank 12, the medium-temperature fermentation tank 9 and the low-temperature fermentation tank 6 for heat exchange, respectively, so that the water temperature entering the heat exchange chamber of the fermentation tank can reach a suitable temperature.

[0023] Finally, there is the data center cooling group, which includes a first water tank 13 connected to the data center 1 through a water inlet pipeline and a second water tank 3 connected to the data center 1 through a drainage pipeline; wherein the water inlet of the first water tank 13 is also connected to the drainage outlets of the high-temperature fermentation tank 12, the medium-temperature fermentation tank 9 and the low-temperature fermentation tank 6, and the water outlet of the second water tank 3 is also connected to the water inlet of the high-temperature liquid cache tank 11, the medium-temperature liquid cache tank 8 and the low-temperature liquid cache tank 5. Among them, the first water tank 13 and the second water tank 3 are both equipped with a second temperature sensor and a second liquid level gauge. A second water pump 2 is also provided on the drainage pipeline between the second water tank 3 and the data center 1.

[0024] Under this structure, it can be understood that the high-temperature fermentation tank 12 cooperates with the high-temperature liquid cache tank 11 to form a first branch connected to the first water tank 13 and the second water tank 3, the medium-temperature fermentation tank 9 cooperates with the medium-temperature liquid cache tank 8 to form a second branch connected to the first water tank 13 and the second water tank 3, and the low-temperature fermentation tank 6 cooperates with the low-temperature liquid cache tank 5 to form a third branch connected to the first water tank 13 and the second water tank 3, and the above three branches form a parallel structure, which is independent of each other and does not interfere with each other. In addition, with respect to the high-temperature liquid cache tank 11, the medium-temperature liquid cache tank 8, the low-temperature liquid cache tank 5 and the second water tank 3 involved in this embodiment, it is preferred to use a material with thermal insulation properties to make the corresponding box body.

[0025] Based on the above structure, a first water valve 10 is provided between the second water storage tank 3 and the high-temperature liquid cache tank 11, a second water valve 7 is provided between the second water storage tank 3 and the medium-temperature liquid cache tank 8, and a third water valve 4 is provided between the second water storage tank 3 and the low-temperature liquid cache tank 5.

[0026] In addition, in order to facilitate the control of the water volume and water temperature in the liquid cache tank, the high-temperature liquid cache tank 11, the medium-temperature liquid cache tank 8 and the low-temperature liquid cache tank 5 are respectively equipped with a first temperature sensor. The high-temperature liquid cache tank 11, the medium-temperature liquid cache tank 8 and the low-temperature liquid cache tank 5 are respectively equipped with a first liquid level meter.

[0027] Since the high-temperature water in the second water storage tank 3 needs to be adjusted in temperature by neutralization with normal-temperature water after entering different cache tanks, the sum of the volumes of the high-temperature liquid cache tank 11, the medium-temperature liquid cache tank 8, and the low-temperature liquid cache tank 5 is greater than the volume of the second water storage tank 3, so that normal-temperature water can also be introduced into the high-temperature liquid cache tank 11, the medium-temperature liquid cache tank 8, and the low-temperature liquid cache tank 5. In this regard, the normal-temperature water introduced into each liquid cache tank can come from the first water storage tank 13, and of course, it can also be another external normal-temperature water. In this regard, the first water storage tank 13 is taken as an example in this embodiment, and the high-temperature liquid cache tank 11, the medium-temperature liquid cache tank 8, and the low-temperature liquid cache tank 5 are also connected to the first water storage tank 13 through a branch respectively, and each corresponding branch is provided with a first water pump.

[0028] In summary, for the fermentation system based on the waste heat utilization of the data center in this embodiment, the first water tank 13 stores room temperature water, which can be passed into the data center 1 through the water inlet pipe to achieve cooling of the data center 1. During the cooling process, the room temperature water will become high temperature water due to the heat. At this time, the high temperature water will enter the second water tank 3 through the drainage pipe, thus realizing the recovery of the waste heat generated by the cooling of the data center 1. The high temperature water in the second water tank 3 is divided into three paths to enter the high temperature liquid cache tank 11, the medium temperature liquid cache tank 8 and the low temperature liquid cache tank 5. At this time, the liquid temperature in the three cache tanks is the same, but because the heating temperature required by the high temperature fermentation tank 12, the medium temperature fermentation tank 9 and the low temperature fermentation tank 6 is different, it is necessary to adjust the water temperature entering the heat exchange chamber of the high temperature fermentation tank 12, the medium temperature fermentation tank 9 and the low temperature fermentation tank 6. Here, the water temperature is measured by the first temperature sensors respectively configured in the high temperature liquid cache tank 11, the medium temperature liquid cache tank 8 and the low temperature liquid cache tank 5, and then the temperature is adjusted by the second temperature sensors respectively configured in the high temperature liquid cache tank 11, the medium temperature liquid cache tank 8 and the low temperature liquid cache tank 5. A water storage tank 13 passes normal temperature water into the high-temperature liquid cache tank 11, the medium-temperature liquid cache tank 8 and the low-temperature liquid cache tank 5, thereby neutralizing the high-temperature water in the high-temperature liquid cache tank 11, the medium-temperature liquid cache tank 8 and the low-temperature liquid cache tank 5, so that the water temperature gradually reaches a suitable temperature. When the water temperature reaches a suitable temperature, it is respectively passed into the heat exchange chamber of the corresponding fermentation tank to heat the fermentation tank. The water that has completed the heat exchange flows back to the first water storage tank 13, thus completing the circulation of water and realizing the purpose of using the waste heat recovered from the data center 1 to provide heat for fermentation tanks in different temperature zones.

[0029] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0030] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, 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 the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being above, above, and above a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Claims

1. A fermentation system based on waste heat utilization of data center, characterized in that: include: A fermentation tank heat exchange group, which includes a high-temperature fermentation tank, a medium-temperature fermentation tank and a low-temperature fermentation tank arranged in parallel; A fermentation tank heat supply regulating group, comprising a high-temperature liquid cache box, a medium-temperature liquid cache box and a low-temperature liquid cache box arranged in parallel; wherein the water outlet of the high-temperature liquid cache box is connected to the high-temperature fermentation tank, the water outlet of the medium-temperature liquid cache box is connected to the medium-temperature fermentation tank, and the water outlet of the low-temperature liquid cache box is connected to the water inlet of the low-temperature fermentation tank; A data center cooling group, comprising a first water tank connected to the data center via a water inlet pipe and a second water tank connected to the data center via a drainage pipe; wherein the water inlet of the first water tank is also connected to the drainage outlets of a high-temperature fermentation tank, a medium-temperature fermentation tank and a low-temperature fermentation tank, and the water outlet of the second water tank is also connected to the water inlets of a high-temperature liquid cache tank, a medium-temperature liquid cache tank and a low-temperature liquid cache tank.

2. The fermentation system based on waste heat utilization of data center according to claim 1, characterized in that: A first water valve is provided between the second water storage tank and the high-temperature liquid cache tank, a second water valve is provided between the second water storage tank and the medium-temperature liquid cache tank, and a third water valve is provided between the second water storage tank and the low-temperature liquid cache tank.

3. The fermentation system based on waste heat utilization of data center according to claim 1 or 2, characterized in that: The high-temperature liquid cache box, the medium-temperature liquid cache box and the low-temperature liquid cache box are respectively configured with a first temperature sensor.

4. The fermentation system based on waste heat utilization of data center according to claim 1 or 2, characterized in that: The high-temperature liquid cache tank, the medium-temperature liquid cache tank and the low-temperature liquid cache tank are respectively configured with a first liquid level gauge.

5. The fermentation system based on waste heat utilization of data center according to claim 1 or 2, characterized in that: The sum of the volumes of the high-temperature liquid cache tank, the medium-temperature liquid cache tank and the low-temperature liquid cache tank is greater than the volume of the second water storage tank.

6. The fermentation system based on waste heat utilization of data center according to claim 5, characterized in that: The high-temperature liquid cache tank, the medium-temperature liquid cache tank and the low-temperature liquid cache tank are also connected to the first water storage tank through a branch respectively.

7. The fermentation system based on waste heat utilization of data center according to claim 6, characterized in that: Each of the branch lines is provided with a first water pump.

8. The fermentation system based on waste heat utilization of data center according to claim 1, characterized in that: The first water storage tank and the second water storage tank are both equipped with a second temperature sensor and a second liquid level meter.

9. The fermentation system based on waste heat utilization of data center according to claim 1 or 2, characterized in that: A second water pump is also provided on the drainage pipeline between the second water storage tank and the data center.

10. The fermentation system based on waste heat utilization of data center according to claim 1 or 2, characterized in that: The high-temperature fermentation tank, the medium-temperature fermentation tank and the low-temperature fermentation tank each have a heat exchange cavity suitable for water circulation.

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