Fermentation tank with online PH meter

Abstract

The utility model discloses a fermentation tank with an on-line PH meter. The fermentation tank comprises a fermentation tank body, an adapter, the on-line PH meter, a data line connected with the on-line PH meter and a protective sleeve, the adapter is axially through and is hermetically connected with the fermentation tank in the circumferential direction; the adapter comprises a first section, a middle section and a second section, and the outer diameter of the middle section is larger than that of the first section and that of the second section; the middle section is in threaded connection with a threaded hole in the fermentation tank; the first section extends into the fermentation tank, and the online PH meter extends into the first section and is in threaded connection with the first section; the second section is located outside the fermentation tank, and the connection intersection position of the online PH meter and the data line is located outside the second section; the protective sleeve is axially through, one end of the protective sleeve freely sleeves the second section, and the other end of the protective sleeve covers the data line. According to the utility model, the on-line PH meter can extend into the fermentation tank through the adapter; the data line is protected by the protective sleeve which can be separated from the adapter, so that the data line is protected, and the on-line PH meter is conveniently and regularly detected and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of fermentation tanks, in particular to a fermentation tank with an online pH meter. Background Art

[0002] In the process of producing tetanus toxoid stock solution, the pH value of the fermentation liquid needs to be monitored throughout the fermentation process of Clostridium tetani. Therefore, an online pH meter needs to be connected to the outside of the fermentation tank. The changes in the fermentation liquid value detected by the online pH meter are directly transmitted to the fermentation tank control system, and the pH value of the fermentation liquid can be monitored in real time. The online pH meter needs to be replaced and maintained regularly, and the end of the online pH meter and the connecting data cable are generally exposed outside the fermentation tank.

[0003] On the one hand, after the online pH meter is connected to the fermentation tank control system using a data cable, it is inserted into the tank body of the fermentation tank. Because the fermentation tank is a cylinder, and the data cable is generally tilted upward at a small angle from the online pH meter, there is a force between the end of the online pH meter and the connected data cable, which can easily cause damage to the online pH meter. On the other hand, the data cable is an external component and is exposed outside the fermentation tank, so the online pH meter and the data connection cable will protrude outside the fermentation tank. The operator may accidentally touch the data cable during operation, causing damage to the pH meter. These two aspects make the end of the online pH meter and the connected data cable exposed outside the fermentation tank, which will cause damage to the pH meter.

[0004] Therefore, a fermentation tank is needed that is convenient for replacing and maintaining the online pH meter and can protect the data line. Utility Model Content

[0005] The utility model aims to provide a fermentation tank which is convenient for replacing and maintaining an online pH meter and can protect a data line.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A fermentation tank with an online pH meter, comprising a fermentation tank, an adapter, an online pH meter, a data line connected to the online pH meter, and a protective cover;

[0008] The adapter is axially penetrated and circumferentially sealed and connected to the fermentation tank;

[0009] The adapter comprises a first section, a middle section and a second section, wherein the outer diameter of the middle section is greater than the outer diameters of the first section and the second section;

[0010] The middle section is threadedly connected to the threaded hole on the fermentation tank;

[0011] The first section extends into the fermentation tank, and the online pH meter extends into the first section and is threadedly connected to the first section;

[0012] The second section is located outside the fermentation tank, and the connection intersection of the online pH meter and the data line is located outside the second section;

[0013] The protective sleeve is axially penetrated, one end of the protective sleeve is freely sleeved on the second section, and the other end of the protective sleeve is covered with the data line.

[0014] Furthermore, the outer diameter of one end of the protective cover is smaller than the outer diameter of the middle section, and the difference between the inner diameter of the other end of the protective cover and the outer diameter of the data line is greater than 2 mm and less than 5 mm.

[0015] Furthermore, the outer sleeve of the first section is provided with a sealing ring, and the sealing ring enables the adapter to be sealed and connected to the fermentation tank.

[0016] Furthermore, the end of the other end of the protective sleeve allows the heat-sealed rubber sleeve of the data cable to be exposed by 2-5 cm.

[0017] In the above technical solution, the fermentation tank with an online pH meter of the utility model has the following beneficial effects:

[0018] The utility model allows the online pH meter to be inserted into the fermentation tank through the adapter; the data line is protected by the protective cover; and the protective cover is separated from the adapter to facilitate regular maintenance of the online pH meter when the protective cover is removed. The protective cover placed on the adapter can support the weight of the end of the data line close to the online pH meter. When the data line is accidentally touched by the operator, the protective cover limits the range of movement of the data line, thereby reducing the shaking of the online pH meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 A schematic diagram of the assembly structure of the adapter and the protective cover provided by the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of a fermentation tank connected to a control system provided by the utility model.

[0022] Description of reference numerals:

[0023] Fermentation tank 1, adapter 2, online pH meter 3, data cable 4, protective cover 5, control system 6. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] It should be noted that the terms "above", "one end", "upper", etc. used in this article indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. Similar expressions are only for the purpose of illustration, and do not indicate or imply 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; in addition, the terms "one part", "two parts", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] like Figure 1-2 The fermentation tank with an online pH meter shown in the figure includes a fermentation tank 1, an adapter 2, an online pH meter 3, a data line 4 connected to the online pH meter 3, and a protective cover 5.

[0027] The online pH meter 3 needs to be inserted in the middle and lower part, or the bottom, of the fermentation tank 1. One end of the data line 4 is connected to the online pH meter 3, and the other end of the data line 4 is connected upward to the control system 6 located above the fermentation tank 1.

[0028] The adapter 2 is axially through and circumferentially sealed with the fermentation tank 1. The adapter 2 is a cylinder with a thick middle and thin ends, and includes a first section, a middle section, and a second section connected in sequence. The outer diameter of the middle section is larger than the outer diameters of the first section and the second section. The inner diameters of the three sections are preferably the same, or the middle section and the second section are not in contact with the online pH meter 3, and the first section is located in the fermentation tank.

[0029] Specifically, the middle section is threadedly connected to the threaded hole on the fermentation tank 1, so that the adapter 2 can be screwed onto the fermentation tank 1, and it also seals the adapter 2 and the fermentation tank 1, and the adapter 2 can be easily removed from the fermentation tank 1. The first section extends into the fermentation tank 1, and the online pH meter 3 extends into the first section and is threadedly connected to the first section. The function of the first section is to connect the outer shell of the online pH meter to the first section, which plays a role in fixing the online pH meter 3 to the fermentation tank. The online pH meter is threadedly connected to the first section to seal the two. The second section is located outside the fermentation tank 1, and the connection intersection of the online pH meter 3 and the data cable 4 is located outside the second section, which is convenient for maintaining the online pH meter.

[0030] Optionally, a sealing ring is sandwiched between the online pH meter 3 and the adapter 2 , and the sealing ring is preferably arranged between the middle section and the online pH meter 3 .

[0031] The axial direction of the protective sleeve 5 is penetrated, one end of the protective sleeve 5 is freely covered on the second section, and the other end of the protective sleeve 5 is covered with the data line 4. The connecting intersection of the online pH meter 3 and the data line 4 is covered by the protective sleeve 5, and the protective sleeve 5 plays the role of limiting the range of movement of the data line 4 and protecting the data line 4.

[0032] Preferably, the outer diameter of one end of the protective cover 5 is smaller than the outer diameter of the middle section, and the difference between the inner diameter of the other end of the protective cover 5 and the outer diameter of the data line 4 is greater than 2 mm and less than 5 mm. The middle section blocks one end of the protective cover 5, and when the data line tilts upward or downward from the online pH meter 3, the protective cover 5 is not easy to move because the outer diameter of the protective cover 5 is between 2-5 mm larger than that of the data line 4. The inner and outer surfaces of the protective cover 5 are both stepped, one end of which is sleeved on the second section, and the other end is necked, which plays a role in dustproofing the data line 4 and reducing the gap between the protective cover 5 and the data line.

[0033] Preferably, the first section is covered with a sealing ring on its exterior, and the sealing ring seals the adapter 2 and the fermentation tank 1. Preferably, the sealing ring is arranged at the step between the first section and the middle section.

[0034] Preferably, the other end of the protective sleeve 5 exposes 2-5 cm of the heat-sealed rubber sleeve of the data line 4 to avoid waste of the protective sleeve. The heat-sealed rubber sleeve has great friction and the protective sleeve will not move due to the gravity of the data line.

[0035] The utility model adopts a protective sleeve 5 of a stainless steel sleeve to protect the online pH meter and the connected data line together. The data line contacts the protective sleeve so that the connecting force acts on the protective sleeve, reducing the force on the connection of the online pH meter and preventing the operator from accidentally touching the online pH meter during operation. The protective sleeve is used to protect the pH meter and the connected data line together. Because the online pH meter needs to be regularly inspected and replaced, the protective sleeve is directly inserted into the online pH meter. The inner diameter of one end of the protective sleeve is 2 mm larger than the diameter of the online pH meter and smaller than the diameter of the middle section. This can ensure that the leaking parts of the online pH meter can be inserted into the sleeve, prevent the movement of the protective sleeve, and facilitate the replacement of the online pH meter. The inner diameter of the other end of the protective sleeve is 4 mm larger than the diameter of the data line. This can ensure that the force generated by the data line can act on the protective sleeve, preventing mechanical damage to the connection between the online pH meter and the data line. The overall length of the protective sleeve is smaller than the outermost part of the fermentation tank body. The length of the thick end is 5 cm larger than the exposed part of the online pH meter, and the length of the other end is 3 cm smaller than the heat-sealed rubber sleeve of the data cable. The two are welded together using argon arc welding, and the welds are polished smooth. This can not only ensure the protection of the online pH meter, but also ensure that the operator will not be affected by the protrusion of the stainless steel sleeve during operation. After the stainless steel sleeve is polished smooth, it is easy for the operator to clean the stainless steel sleeve.

[0036] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A fermentation tank with an online pH meter, characterized in that: It comprises a fermentation tank (1), an adapter (2), an online pH meter (3), a data line (4) connected to the online pH meter (3), and a protective cover (5); The adapter (2) is axially penetrated and circumferentially sealed and connected to the fermentation tank (1); The adapter (2) comprises a first section, a middle section and a second section in sequence, and the outer diameter of the middle section is greater than the outer diameters of the first section and the second section; The middle section is threadedly connected to the threaded hole on the fermentation tank (1); The first section extends into the fermentation tank (1), and the online pH meter (3) extends into the first section and is threadedly connected to the first section; The second section is located outside the fermentation tank (1), and the connection intersection of the online pH meter (3) and the data line (4) is located outside the second section; The protective sleeve (5) is axially penetrated, one end of the protective sleeve (5) is freely sleeved on the second section, and the other end of the protective sleeve (5) is covered with the data line (4).

2. A fermentation tank with an online pH meter according to claim 1, characterized in that: The outer diameter of one end of the protective sleeve (5) is smaller than the outer diameter of the middle section, and the difference between the inner diameter of the other end of the protective sleeve (5) and the outer diameter of the data line (4) is greater than 2 mm and less than 5 mm.

3. A fermentation tank with an online pH meter according to claim 1, characterized in that: The outer sleeve of the first section is provided with a sealing ring, and the sealing ring enables the adapter (2) to be sealed and connected to the fermentation tank (1).

4. A fermentation tank with an online pH meter according to claim 2, characterized in that: The end of the other end of the protective sleeve (5) allows the heat-sealed rubber sleeve of the data cable (4) to be exposed by 2-5 cm.

Images