Fermentation tank with glass fiber reinforced plastic jacket

Abstract

The utility model discloses a glass fiber reinforced plastic jacket fermentation tank which comprises a glass fiber reinforced plastic tank body and an interlayer sleeve, the glass fiber reinforced plastic tank body is at least provided with a feeding port and a discharging port, the glass fiber reinforced plastic tank body is provided with an annular wall, a top cover and an inclined base, and the annular wall and a jacket layer are matched at intervals to form a surrounding sealing interlayer; the refrigerant / heating medium is in contact with the annular wall of the glass fiber reinforced plastic tank body in the sealing interlayer and exchanges heat with the glass fiber reinforced plastic tank body; a normally-closed outlet is formed in the bottom edge of the glass fiber reinforced plastic tank body. The inclined base is provided with an inclined face inclining towards the outlet. The inclined base is hollow, and a heating coil close to the inclined face is further arranged in the hollow portion of the inclined base. The flow equalizing plate is arranged in the sealing interlayer, so that a refrigerant / heating medium uniformly flows in the interlayer and is in full contact with the annular wall of the tank body, efficient and uniform heating and cooling are realized, and the stability of the fermentation temperature is ensured. The inclined base is provided with a heating coil close to the inclined surface, so that accurate heating and heat insulation of the bottom are realized, and the fermentation process temperature is effectively controlled.

Description

Technical Field

[0001] The present application relates to a glass fiber reinforced plastic tank, and in particular to a glass fiber reinforced plastic jacketed fermentation tank. Background Art

[0002] Fermentation tanks are widely used in many fields such as biopharmaceuticals, food brewing, and environmental protection engineering, and are one of the core equipment in various fermentation production. Fermentation tanks are generally made of stainless steel, carbon steel, and fiberglass. Among them, fiberglass is the preferred material for fermentation tanks due to its excellent corrosion resistance, light weight, and high strength.

[0003] On the basis of the above, the FRP jacketed fermentation tank has become an important equipment in the biological fermentation process, but the structure and function of the FRP fermentation tank have a significant impact on the stability and efficiency of the entire fermentation process. Although the FRP fermentation tank has a wide range of application potential, the existing technology still has shortcomings. Specifically, the inner surface structure of some traditional fermentation tanks is complex, resulting in material residue, which provides an environment for bacterial growth. In addition, the existing fermentation tank jacket usually uses a spiral tube as a heat exchange device. Due to the structural characteristics of the spiral tube, the contact surface of the spiral tube is limited, which easily leads to a heating blind spot in the jacket, and the entire tank body cannot be evenly heated or cooled, affecting the uniformity and stability of the fermentation temperature, and it is difficult to meet the temperature control requirements of the efficient fermentation process. Finally, the bottom of the existing fermentation tank usually adopts an arc bottom or a flat bottom design, which makes it difficult to completely discharge the material, affecting the fermentation effect. Due to the unreasonable design of the bottom structure, the material residue is serious and cannot be effectively cleaned, which increases the risk of bacterial growth.

[0004] Based on the above problems, in order to improve the performance of the fermenter, the optimal design of the FRP jacketed fermenter is of great significance. Utility Model Content

[0005] The purpose of the present application is to overcome at least one of the shortcomings of the prior art and to provide a fiberglass jacketed fermentation tank, which can not only solve the shortcomings of traditional fermentation tanks, but also significantly improve the efficiency and stability of the fermentation process.

[0006] To achieve the above-mentioned purpose, the present application discloses a FRP jacketed fermentation tank, comprising a FRP tank body and an interlayer jacket, wherein the FRP tank body has at least one feed port and one discharge port, the FRP tank body has an annular wall, a top cover and an inclined base, wherein the annular wall and the jacket layer are spaced to form a surrounding sealed interlayer, the sealed interlayer has at least one liquid inlet and at least one liquid return port, liquid refrigerant / heat medium enters from the liquid inlet and is sent out from the liquid return port, the refrigerant / heat medium contacts with the annular wall of the FRP tank body in the sealed interlayer and exchanges heat, so as to achieve heating / cooling of the FRP tank body; the FRP tank body is provided with a normally closed outlet at the bottom edge, and the inclined base is adapted thereto and has an inclined surface inclined toward the outlet to guide the liquid to be discharged from the outlet; the inclined base is hollow and filled with a heat-insulating filling layer to achieve heat insulation at the bottom of the FRP tank body, and a heating coil close to the inclined surface is also provided in the hollow of the inclined base; at least one air stirring port is provided in the FRP tank body, and the air stirring port is connected to an external air source through a pipeline.

[0007] Furthermore, a glass fiber reinforced plastic grid plate for carrying solid materials is provided inside the glass fiber reinforced plastic tank body near the inclined base, and the glass fiber reinforced plastic grid plate and the inclined base are connected and matched by a plurality of supporting members.

[0008] Furthermore, the fiberglass tank body has a smooth inner lining.

[0009] Furthermore, a plurality of flow equalizing plates with holes are provided in the sealing interlayer, so that the interlayer sleeve and the annular wall are spaced and matched, and the flow equalizing plates guide the refrigerant / heat medium to flow evenly in the sealing interlayer; the upper and lower edges of the interlayer sleeve are bent toward the annular wall and connected to the outer surface of the annular wall.

[0010] Furthermore, a plurality of vertically arranged partitions with through holes are arranged in the horizontal direction inside the glass fiber reinforced plastic tank.

[0011] Furthermore, the outer wall surface of the jacket layer is provided with a heat insulating layer to reduce heat loss of the sealing interlayer during heat exchange.

[0012] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0013] 1. A flow equalizing plate is set in the sealed interlayer to make the refrigerant / heat medium flow evenly in the interlayer and fully contact with the annular wall of the tank body, so as to achieve efficient and uniform heating and cooling and ensure the stability of the fermentation temperature.

[0014] 2. The inclined base is hollow and filled with a heat-insulating filling layer. A heating coil is set close to the slope to achieve precise heating and insulation at the bottom, effectively controlling the temperature of the fermentation process.

[0015] 3. The smooth inner lining and inclined base structure inside the FRP tank reduce material residue and guide the liquid to be discharged from the normally closed outlet, which is convenient for cleaning and maintenance and prevents bacterial growth.

[0016] 4. An air stirring port is provided in the tank to enhance the mixing efficiency during the fermentation process.

[0017] The above-listed beneficial effects are not exhaustive of all advantages. Other potential beneficial effects and detailed technical implementations will be further disclosed in the examples or other description parts of this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] After reading the following detailed description in conjunction with the accompanying drawings, you will better understand the various aspects of the present disclosure. The positions, sizes, and ranges of various structures shown in the accompanying drawings sometimes do not represent the actual positions, sizes, and ranges. In the accompanying drawings:

[0019] Figure 1 It is a structural schematic diagram of an embodiment disclosed in this application.

[0020] Figure 2 It is a schematic diagram of the partial structure of a sealing interlayer in an embodiment disclosed in the present application.

[0021] Figure 3 It is a schematic diagram of the internal structure of an inclined base in an embodiment disclosed in the present application. DETAILED DESCRIPTION

[0022] The present disclosure will be described below with reference to the accompanying drawings, which illustrate several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in a variety of different ways and is not limited to the embodiments described below; in fact, the embodiments described below are intended to make the disclosure of the present disclosure more complete and fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0023] It should be understood that the same reference numerals represent the same elements throughout the drawings. In the drawings, the dimensions of certain features may be distorted for clarity.

[0024] It should be understood that the terms used in the specification are only used to describe specific embodiments and are not intended to limit the present disclosure. All terms (including technical terms and scientific terms) used in the specification have the meanings commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, the techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification.

[0025] The singular forms "a", "said" and "the" used in the specification include plural forms unless clearly indicated. The terms "include", "comprise" and "contain" used in the specification indicate the presence of the claimed features, but do not exclude the presence of one or more other features. The term "and / or" used in the specification includes any and all combinations of one or more of the relevant listed items. Example

[0026] like Figures 1 to 3 As shown, this embodiment discloses an exemplary structure of a FRP jacketed fermentation tank. In terms of structural composition, the fermentation tank includes a FRP tank body 1, an interlayer jacket 2, an air stirring port 4, a FRP grid plate 5, a heating coil 6 and other components.

[0027] In this embodiment, the FRP tank body 1 has at least one feed port and one discharge port, and is suitable for the fields of biopharmaceuticals, food brewing, environmental protection engineering, etc.

[0028] Specifically, the FRP tank body 1 is an important component of the fermentation tank, and has three parts: the ring wall 7, the top cover 12, and the inclined base 3. The ring wall 7, as the main part of the tank body, is made of FRP material, is cylindrical, and has a smooth inner lining on the inner surface to reduce material residue and facilitate cleaning. The ring wall 7 and the interlayer sleeve 2 are spaced to form a sealed interlayer 8. The sealed interlayer 8 is provided with a plurality of flow equalizing plates 9 along the direction of the fluid, and the flow equalizing plates 9 are provided with a plurality of holes, so that the refrigerant / heat medium flows evenly in the sealed interlayer 8 and fully contacts with the ring wall 7, so as to achieve efficient and uniform heat exchange.

[0029] More specifically, the sealing interlayer 8 is formed by the gap between the annular wall 7 and the interlayer sleeve 2, the interlayer sleeve 2 is wrapped around the outside of the glass tank body 1, and the upper and lower edges of the interlayer sleeve 2 are bent toward the annular wall and connected to the outer surface of the annular wall 7. The interlayer sleeve 2 is provided with at least one liquid inlet and one liquid return port, and the refrigerant / heat medium enters the sealing interlayer 8 through the liquid inlet, flows evenly under the guidance of the flow equalizing plate 9, and is discharged from the liquid return port after fully contacting the annular wall 7, thereby realizing efficient and uniform heating and cooling of the FRP tank body 1.

[0030] As a further optimization, in this embodiment, a heat insulating layer is provided on the outer wall surface of the interlayer sleeve 2 to reduce the heat loss of the sealing interlayer 8 during heat exchange and improve the heat exchange efficiency.

[0031] In this embodiment, the top cover 12 is made of the same glass fiber reinforced plastic material as the annular wall 7, and is in a dome or flat top shape, and can be detached or fixed on the top of the annular wall 7. The top cover 12 is provided with a feed port for adding materials, and is equipped with a sealing structure to prevent contamination and leakage.

[0032] It should be understood that, according to different usage requirements, the top cover 12 may also be provided with an observation port or entry hole to facilitate inspection of the tank interior and cleaning and maintenance, and other interfaces such as exhaust ports, sampling ports, temperature and pressure sensor interfaces may be designed according to different process requirements.

[0033] In this embodiment, the FRP tank body 1 is provided with a normally closed outlet 10 at the bottom edge, and the inclined base 3 is used as the bottom structure of the FRP tank body 1. The interior of the inclined base 3 is hollow and the top surface is an inclined surface 11 facing the normally closed outlet 10, which is used to guide the discharge of materials. The interior of the inclined base 3 is filled with a heat insulating filling layer 13, which is a polyurethane filling layer to achieve heat insulation at the bottom of the FRP tank body 1.

[0034] More specifically, a heating coil 6 is provided in the hollow of the inclined base 3 near the inclined surface 11 to ensure accurate heating of the bottom. The design of the inclined surface 11 of the inclined base 3 allows the material to be discharged smoothly, reduces material residue, and facilitates cleaning. At the same time, the heat-insulating filling layer 13 can reduce heat loss, and the heating coil 6 achieves accurate heating through the heating medium.

[0035] In this embodiment, in order to achieve better stirring, the FRP tank body 1 is provided with at least one air stirring port 4 near the bottom, which is connected to an external air source through a pipeline 14 to achieve efficient mixing and stirring. During stirring, high-pressure gas is injected into the air stirring port 4 to stir the material in the tank, thereby achieving efficient mixing during the fermentation process and improving the fermentation efficiency.

[0036] In this embodiment, in order to realize the solid material carrying and separation design, a fiberglass grating plate 5 is arranged inside the fiberglass tank body 1 near the inclined base 3, which is connected and cooperated with the inclined base 3 through a number of supporting parts, and can be used to carry solid materials and enhance the adaptability of solid-state fermentation.

[0037] In addition, as an optional design, in some embodiments, a plurality of vertical partitions 15 arranged in the horizontal direction are provided inside the FRP tank body 1, and the partitions 15 have holes to achieve reasonable separation of the space inside the tank, which is helpful for solid-liquid separation and process design.

[0038] When this embodiment is implemented, the material is loaded into the FRP tank body 1 through the feed port, and the air stirring port 4 is connected to an external air source to achieve mixing and uniform distribution of the material. The refrigerant / heat medium enters the sealed interlayer 8 through the liquid inlet, and flows evenly under the guidance of the flow equalizing plate 9, contacts the annular wall 7 of the tank body for heat exchange, and is discharged from the return liquid port to ensure the heating / cooling of the tank body. The heating coil 6 accurately heats the bottom of the tank body through the heating medium, and cooperates with the thermal insulation filling layer 13 of the inclined base 3 to ensure the temperature control of the bottom. The solid material is carried by the FRP grid plate 5, and with the assistance of the vertical partition 15, solid-liquid separation and multi-level fermentation process design are realized. When cleaning after the fermentation is completed, open the observation port or entry hole, clean the inside, and discharge the material in the tank through the normally closed outlet 10, and use the inclined structure of the inclined base 3 to ensure that the material is discharged cleanly.

[0039] Although the exemplary embodiments of the present disclosure have been described, it should be understood by those skilled in the art that various changes and modifications can be made to the exemplary embodiments of the present disclosure without departing from the spirit and scope of the present disclosure in essence. Therefore, all changes and modifications are included in the scope of protection of the present disclosure as defined by the claims. The present disclosure is defined by the appended claims, and the equivalents of these claims are also included.

Claims

1. Fiberglass jacketed fermentation tank, characterized in that: include: A glass fiber reinforced plastic tank body and an interlayer sleeve, wherein the glass fiber reinforced plastic tank body has at least one feed port and one discharge port, the glass fiber reinforced plastic tank body has an annular wall, a top cover and an inclined base, wherein the annular wall and the jacket layer are spaced to form a surrounding sealed interlayer, the sealed interlayer has at least one liquid inlet and at least one liquid return port, liquid refrigerant / heat medium enters from the liquid inlet and is sent out from the liquid return port, the refrigerant / heat medium contacts with the annular wall of the glass fiber reinforced plastic tank body in the sealed interlayer and exchanges heat, so as to achieve heating / cooling of the glass fiber reinforced plastic tank body; the glass fiber reinforced plastic tank body is provided with a normally closed outlet at the bottom edge, and the inclined base is adapted thereto and has an inclined surface inclined toward the outlet to guide the liquid to be discharged from the outlet; the inclined base is hollow and filled with a heat-insulating filling layer to achieve heat insulation of the bottom of the glass fiber reinforced plastic tank body, and a heating coil close to the inclined surface is also provided in the hollow of the inclined base; at least one air stirring port is provided in the glass fiber reinforced plastic tank body, and the air stirring port is connected to an external air source through a pipeline.

2. The glass fiber reinforced plastic jacketed fermentation tank as claimed in claim 1, characterized in that: A glass fiber reinforced plastic grid plate for carrying solid materials is provided inside the glass fiber reinforced plastic tank body at a position close to the inclined base, and the glass fiber reinforced plastic grid plate and the inclined base are connected and matched through a plurality of supporting members.

3. The glass fiber reinforced plastic jacketed fermentation tank as claimed in claim 1, characterized in that: The glass fiber reinforced plastic tank body has a smooth inner lining layer.

4. The glass fiber reinforced plastic jacketed fermentation tank as claimed in claim 1, characterized in that: A plurality of flow equalizing plates with holes are arranged in the sealing interlayer, so that the interlayer sleeve and the annular wall are spaced and matched, and the flow equalizing plates guide the refrigerant / heat medium to flow evenly in the sealing interlayer; the upper edge and the lower edge of the interlayer sleeve are bent toward the annular wall and connected to the outer surface of the annular wall.

5. The glass fiber reinforced plastic jacketed fermentation tank as claimed in claim 1, characterized in that: A plurality of vertically arranged partitions with through holes are arranged in the horizontal direction in the glass fiber reinforced plastic tank.

6. The glass fiber reinforced plastic jacketed fermentation tank as claimed in claim 1, characterized in that: The outer wall surface of the jacket layer is provided with a heat insulation layer.

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