Water supply device for disc centrifuge

Abstract

The utility model provides a water supply device for a disc type centrifugal machine. The water supply device comprises a first water supply channel, a second water supply channel and a water storage barrel. The first water supply channel is communicated with a second water supply pipe, the second water supply pipe is communicated with a water storage barrel through a first pneumatic diaphragm valve, and the water storage barrel supplies water to the centrifugal machine through a water supply pump; a flow switch is arranged on the first water supply pipe, and supplied water in the first water supply pipe sequentially passes through the flow switch and the second water supply pipe; a first differential pressure type liquid level meter is arranged on the water storage barrel and electrically connected with the first pneumatic diaphragm valve. The centrifugal machine solves the problem that operation water of the centrifugal machine is cut off due to water production faults of equipment or human factors, and achieves the effect of protecting the centrifugal machine.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, and in particular to a water supply device for a disc-type centrifuge. Background Art

[0002] Disc stack centrifuges are widely used in the fields of biopharmaceuticals, industrial fermentation, and in large-scale industrial production. Their continuous processing mode is very suitable for large-scale cell fermentation production in the field of biopharmaceuticals. However, disc stack centrifuges are expensive, especially the accessories and labor maintenance costs required for maintenance are high, which has always been one of the difficulties in cost control for enterprises. Moreover, for some manufacturers who do not have equipment or spare centrifuges to replace centrifuges, problems with centrifuges will directly lead to production paralysis.

[0003] There are two important points about centrifuge operating water: 1. Centrifuge operating water requirements: a. Sterile purified water; b. Water pressure: 300kpa; c. Continuous supply, no interruption; 2. Centrifuge operating water functions: a. Support the drum; b. Perform the centrifuge "wet waiting" procedure; c. Flushing slag; d. Cooling the machine seal.

[0004] Centrifuge operating water is one of the necessary conditions for the operation of the centrifuge. To ensure the normal operation of the centrifuge, the operating water must be adequately supplied and cannot be interrupted. The current centrifuge operating water is generally directly connected to the purified water supply pipeline or a purified water storage tank is added. The storage tank needs to be manually replenished with purified water to ensure the normal operation of the centrifuge. However, due to water outages or manual operations, water is sometimes forgotten to be replenished, causing the centrifuge operating water to be interrupted, thereby damaging the internal components of the centrifuge. In addition, during the production process of centrifuges in the biopharmaceutical field, a large amount of foam will be generated in the slag storage tank when the centrifuge is flushing slag. The foam will enter the centrifuge, causing the centrifuge hub slag discharge hole to be blocked. After the slag discharge hole is blocked, the machine needs to be disassembled for maintenance.

[0005] The patent document with the publication number CN116493144A discloses a centrifuge fault warning method, device and equipment, which relates to the field of centrifuges and solves the problem that the existing centrifuge must be shut down due to faults during operation. The centrifuge fault warning method discretizes the rotor system of the centrifuge, obtains at least one component of the discretized rotor system, determines the rotor system motion equation according to at least one component, and corrects the rotor system motion equation, determines the centrifuge fault prediction model through the corrected rotor system motion equation, and finally inputs the real-time parameters of at least one component of the discretized rotor system of the centrifuge into the centrifuge fault prediction model for prediction, and obtains the fault prediction result including the offset degree of at least one component of the discretized rotor system, thereby realizing the functions of online monitoring, trend analysis and fault warning of the centrifuge, and achieving the purpose of preventive maintenance of the centrifuge. However, the patent document cannot solve the problems existing in the above-mentioned disc centrifuge. Utility Model Content

[0006] In view of the defects in the prior art, the purpose of the utility model is to provide a water supply device for a disc centrifuge.

[0007] According to the utility model, a water supply device for a disc centrifuge includes: a first water supply channel, a second water supply channel and a water storage bucket;

[0008] The first water supply channel is connected to the second water supply pipe, the second water supply pipe is connected to the water storage barrel through a first pneumatic diaphragm valve, and the water storage barrel supplies water to the centrifuge through a water supply pump;

[0009] The first water supply pipe is provided with a flow switch, and the water in the first water supply pipe passes through the flow switch and the second water supply pipe in sequence; the water storage tank is provided with a first differential pressure level gauge, and the first differential pressure level gauge is electrically connected to the first pneumatic diaphragm valve.

[0010] Preferably, it also includes a spare water storage bucket;

[0011] The backup water storage barrel is connected to the water storage barrel through a second pneumatic diaphragm valve, and the backup water storage barrel is used to supply water to the water storage barrel.

[0012] Preferably, the first pneumatic diaphragm valve is connected to the spare water storage tank through a third pneumatic diaphragm valve;

[0013] The first pneumatic diaphragm valve is connected to the water storage tank through a fourth pneumatic diaphragm valve; the fourth pneumatic diaphragm valve is electrically connected to the first differential pressure liquid level gauge.

[0014] Preferably, a second differential pressure level gauge is provided on the standby water storage tank;

[0015] The second differential pressure liquid level gauge is electrically connected to the first pneumatic diaphragm valve and the second pneumatic diaphragm valve.

[0016] Preferably, the bottom of the standby water storage bucket is connected to the water storage bucket;

[0017] The connection position between the standby water storage bucket and the water storage bucket is higher than the lowest water level in the water storage bucket that can maintain the normal operation of the centrifuge;

[0018] The plane where the bottom of the standby water storage bucket is located is higher than the lowest water level position in the water storage bucket that can maintain the normal operation of the centrifuge.

[0019] Preferably, a first normal pressure filter housing is provided on the water storage barrel, and a second normal pressure filter housing is provided on the spare water storage barrel.

[0020] Preferably, it also includes a filter element, which is arranged on a drainage channel connecting the centrifuge slag discharge tank and the centrifuge.

[0021] Preferably, a fifth pneumatic diaphragm valve is provided between the water storage tank and the water supply pump.

[0022] Preferably, a sixth pneumatic diaphragm valve is provided between the water supply pump and the centrifuge.

[0023] Preferably, the first water supply pipe is a U-shaped pipe, and the second water supply pipe is connected to the bottom of the U-shaped pipe.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] 1. The utility model adopts a flow switch with an alarm function, which can timely know the water supply interruption of the purified water supply system. At the same time, a water storage bucket is arranged. When the purified water supply system fails to supply water, the water storage bucket can continue to supply water to the centrifuge, maintain the normal operation of the centrifuge within a certain period of time, and reserve time for stopping the centrifuge, thereby solving the problem of water interruption of the centrifuge operation caused by equipment water production failure or human factors, and achieving the effect of protecting the centrifuge.

[0026] 2. The utility model is provided with a spare water storage barrel. When the purified water supply system fails, the valve between the spare water storage barrel and the water storage barrel is opened, and water is supplied to the water storage barrel through the spare water storage barrel, which can further extend the normal working time of the centrifuge and reserve more time for stopping the centrifuge. At the same time, if only the valve between the water storage barrel and the purified water supply system fails, the valve between the spare water storage barrel and the purified water supply system can be opened to supply water to the spare water storage barrel, thereby ensuring normal water supply to the water storage barrel.

[0027] 3. The utility model is provided with a differential pressure liquid level, which is used to judge the water level in the water storage tank and the spare water storage tank. When the water level is lower than the low liquid level line, the valve is opened for replenishment, and when the water level is higher than the high liquid level line, the valve is closed to stop water supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0029] Figure 1 It is a schematic diagram of the structure of a water supply device for a disc centrifuge;

[0030] Figure 2 To highlight the schematic diagram of the structure of the centrifuge slag tank;

[0031] Figure 3 A schematic diagram highlighting the structure of the filter element.

[0032] The figure shows:

[0033] Second atmospheric filter housing 1 Fourth pneumatic diaphragm valve 14

[0034] Second differential pressure level gauge 2 First differential pressure level gauge 15

[0035] Spare water storage barrel 3 Water storage barrel 16

[0036] Second silicone hose 4 Water tank high liquid level line 17

[0037] The third pneumatic diaphragm valve 5 water storage tank low liquid level line 18

[0038] Spare tank high liquid level line 6 Fifth pneumatic diaphragm valve 19

[0039] Spare tank low liquid level line 7 Water supply pump 20

[0040] Second pneumatic diaphragm valve 8 Sixth pneumatic diaphragm valve 21

[0041] Flow switch 9 Centrifuge 22

[0042] First water supply pipe 10 Centrifuge slag tank 23

[0043] First pneumatic diaphragm valve 11 drain channel 24

[0044] First atmospheric filter housing 12 filter element 25

[0045] First silicone hose 13 Second water supply pipe 26 DETAILED DESCRIPTION

[0046] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0047] Embodiment 1:

[0048] like Figures 1 to 3 As shown, this embodiment provides a water supply device for a disc centrifuge, including: a first water supply channel 10, a second water supply channel 26 and a water storage bucket 16; the first water supply channel 10 is connected with the second water supply pipe 26, the second water supply pipe 26 is connected with the water storage bucket 16 through the first pneumatic diaphragm valve 11, and the water storage bucket 16 supplies water to the centrifuge 22 through the water supply pump 20; a flow switch 9 is provided on the first water supply pipe 10, and the water supply in the first water supply pipe 10 passes through the flow switch 9 and the second water supply pipe 26 in sequence; a first differential pressure level gauge 15 is provided on the water storage bucket 16, and the first differential pressure level gauge 15 is electrically connected to the first pneumatic diaphragm valve 11. The flow switch 9 is a flow switch with an alarm function. When the water flow is maintained at a normal flow rate, no alarm is given, and when the water flow is lower than the normal flow rate, an alarm is given. In this embodiment, the flow switch 9 is an FGH thermal conductivity flow switch.

[0049] The first water supply pipe 10 is a U-shaped pipe, and the second water supply pipe 26 is connected to the bottom of the U-shaped pipe. A fifth pneumatic diaphragm valve 19 is provided between the water storage tank 16 and the water supply pump 20. A sixth pneumatic diaphragm valve 21 is provided between the water supply pump 20 and the centrifuge 22.

[0050] The water supply device for the disc centrifuge also includes a spare water storage barrel 3; the spare water storage barrel 3 is connected to the water storage barrel 16 through the second pneumatic diaphragm valve 8, and the spare water storage barrel 3 is used to supply water to the water storage barrel 16. The water storage barrel 16 is provided with a first normal pressure filter housing 12, and the spare water storage barrel 3 is provided with a second normal pressure filter housing 1.

[0051] In this embodiment, the water supply pipe connecting the water storage bucket 16 and the spare water storage bucket 3 can be a silicone hose, such as Figure 1 As shown, the water storage tank 16 is connected to a first silicone hose 13 , and the spare water storage tank 3 is connected to a second silicone hose 4 .

[0052] The first pneumatic diaphragm valve 11 is connected to the standby water storage barrel 3 through the third pneumatic diaphragm valve 5; the first pneumatic diaphragm valve 11 is connected to the water storage barrel 16 through the fourth pneumatic diaphragm valve 14; the fourth pneumatic diaphragm valve 14 is electrically connected to the first differential pressure level gauge 15. The standby water storage barrel 3 is provided with a second differential pressure level gauge 2; the second differential pressure level gauge 2 is electrically connected to the first pneumatic diaphragm valve 11 and the second pneumatic diaphragm valve 8. The bottom of the standby water storage barrel 3 is connected to the water storage barrel 16; the connection position between the standby water storage barrel 3 and the water storage barrel 16 is higher than the lowest water level position in the water storage barrel 16 that can maintain the normal operation of the centrifuge 22; the plane where the bottom of the standby water storage barrel 3 is located is higher than the lowest water level position in the water storage barrel 16 that can maintain the normal operation of the centrifuge 22.

[0053] The water supply device for the disc centrifuge also includes a filter element 25, which is arranged on a drainage channel 24 connecting the centrifuge slag tank 23 and the centrifuge 22. The drainage channel 24 is mainly used to drain the operating water that supports the drum into the slag tank and then drain it from the slag tank.

[0054] The first case: add a transparent water storage barrel 16 for operating water, which is made of materials that meet production requirements, to the centrifuge 22 directly connected to the operating water, and connect it in series with a spare water storage barrel 3 that is also filled with operating water. Install the second normal pressure filter housing 1 and the first normal pressure filter housing 12 on both water storage barrels to maintain the two water storage barrels at normal pressure, as well as sterilization and filtration to ensure that no impurities or bacteria enter the water storage barrels. A second pneumatic diaphragm valve 8 is connected between the two water storage barrels. The water storage barrel 16 and the spare water storage barrel 3 are respectively added with a first differential pressure level gauge 15 and a second differential pressure level gauge 2 for liquid level monitoring, all water inlet valves are changed to controllable pneumatic diaphragm valves, and a flow switch 9 that can detect flow and has a flow break alarm device is added upstream of the first water supply pipe 10 for purified water. In some embodiments, a set of automatic control programs can also be made based on existing software products to realize the association between valves, liquid level gauges, and flow switches.

[0055] The second situation: during normal operation, when the liquid level is lower than the low liquid level line 18 of the water storage tank, open the first pneumatic diaphragm valve 11 and the fourth pneumatic diaphragm valve 14, replenish water to the set high liquid level line 17 of the water storage tank, and then close the first pneumatic diaphragm valve 11 and the fourth pneumatic diaphragm valve 14, so as to achieve water replenishment and ensure the normal operation of the centrifuge.

[0056] The purified water flow is monitored by the flow switch 9. When an abnormal purified water supply is detected, an audible and visual alarm is issued. The need to shut down is determined based on the recovery of the purified water supply and the amount of water in the water storage tank 16 and the spare water storage tank 3, thereby avoiding damage to the centrifuge. The low liquid level line 18 of the water storage tank meets the need to shut down the centrifuge.

[0057] The second situation: before use, first open the first pneumatic diaphragm valve 11 and the third pneumatic diaphragm valve 5 to add water to the spare water storage barrel 3 to the spare barrel high liquid level line 6, and then open the first pneumatic diaphragm valve 11 and the fourth pneumatic diaphragm valve 14 to add water in the water storage barrel 16 to the water storage barrel high liquid level line 17. When the first pneumatic diaphragm valve 11 and the fourth pneumatic diaphragm valve 14 fail, the second pneumatic diaphragm valve 8 of the spare water storage barrel 3 can be opened to temporarily transfer the water in the spare water storage barrel 3 to the water storage barrel 16 for the operation of the centrifuge. After the purified water supply is normal, fill up the spare water storage barrel 3 to ensure that the centrifuge can operate stably. The second differential pressure level gauge 2 monitors whether the water level in the spare water storage barrel 3 is lower than the spare barrel low liquid level line 7.

[0058] Centrifuge slag tank anti-slag protection: add a five-inch filter shell and a stainless steel filter element 25 between the centrifuge slag tank 23 and the centrifuge 22 connecting the drainage channel 24. When a large amount of foam is generated by centrifugal slag discharge, the filter element 25 can block large particles of foam, thereby preventing the slag from entering the centrifuge 22, blocking the slag discharge hole, and causing centrifuge failure.

[0059] This embodiment adopts the structure of the water replenishment device to solve the problem of water interruption of the centrifuge operation caused by equipment water production failure or human factors, thereby achieving the effect of protecting the centrifuge. This embodiment solves the problem of clogging of the centrifuge discharge hole due to slag backflow in the slag tank by adding a stainless steel filter element (200 mesh), thereby reducing the maintenance cost of the centrifuge.

[0060] The device of this embodiment can ensure that the centrifuge can operate stably and normally, reduce damage to centrifuge components, and save costs.

[0061] The utility model solves the problem of water interruption in centrifuge operation caused by equipment water production failure or human factors, thereby achieving the effect of protecting the centrifuge.

[0062] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, 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 should not be understood as a limitation on the present application.

[0063] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A water supply device for a disc centrifuge, characterized in that: include: A first water supply pipe (10), a second water supply pipe (26) and a water storage tank (16); The first water supply pipe (10) is connected to the second water supply pipe (26), the second water supply pipe (26) is connected to the water storage barrel (16) through a first pneumatic diaphragm valve (11), and the water storage barrel (16) supplies water to the centrifuge (22) through a water supply pump (20); The first water supply pipe (10) is provided with a flow switch (9), and the water in the first water supply pipe (10) passes through the flow switch (9) and the second water supply pipe (26) in sequence; the water storage tank (16) is provided with a first differential pressure level gauge (15), and the first differential pressure level gauge (15) is electrically connected to the first pneumatic diaphragm valve (11).

2. The water supply device for a disc centrifuge according to claim 1, characterized in that: Also includes a spare water storage bucket (3); The standby water storage barrel (3) is connected to the water storage barrel (16) via a second pneumatic diaphragm valve (8), and the standby water storage barrel (3) is used to supply water to the water storage barrel (16).

3. The water supply device for a disc centrifuge according to claim 2, characterized in that: The first pneumatic diaphragm valve (11) is connected to the spare water storage tank (3) via a third pneumatic diaphragm valve (5); The first pneumatic diaphragm valve (11) is connected to the water storage tank (16) via a fourth pneumatic diaphragm valve (14); the fourth pneumatic diaphragm valve (14) is electrically connected to the first differential pressure liquid level gauge (15).

4. The water supply device for a disc centrifuge according to claim 3, characterized in that: The standby water storage tank (3) is provided with a second differential pressure liquid level gauge (2); The second differential pressure liquid level gauge (2) is electrically connected to the first pneumatic diaphragm valve (11) and the second pneumatic diaphragm valve (8).

5. The water supply device for a disc centrifuge according to claim 2, characterized in that: The bottom of the standby water storage bucket (3) is connected to the water storage bucket (16); The communication position between the standby water storage bucket (3) and the water storage bucket (16) is higher than the lowest water level in the water storage bucket (16) capable of maintaining the normal operation of the centrifuge (22); The plane where the bottom of the standby water storage bucket (3) is located is higher than the lowest water level in the water storage bucket (16) that can maintain the normal operation of the centrifuge (22).

6. The water supply device for a disc centrifuge according to claim 2, characterized in that: The water storage barrel (16) is provided with a first normal pressure filter housing (12), and the spare water storage barrel (3) is provided with a second normal pressure filter housing (1).

7. The water supply device for a disc centrifuge according to claim 1, characterized in that: It also includes a filter core (25), wherein the filter core (25) is arranged on a drainage channel (24) connecting the centrifuge slag discharge tank (23) and the centrifuge (22).

8. The water supply device for a disc centrifuge according to claim 1, characterized in that: A fifth pneumatic diaphragm valve (19) is provided between the water storage tank (16) and the water supply pump (20).

9. The water supply device for a disc centrifuge according to claim 1, characterized in that: A sixth pneumatic diaphragm valve (21) is provided between the water supply pump (20) and the centrifuge (22).

10. The water supply device for a disc centrifuge according to claim 1, characterized in that: The first water supply pipe (10) is a U-shaped pipe, and the second water supply pipe (26) is connected to the bottom of the U-shaped pipe.

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