Liquid dropping device

Abstract

The utility model discloses a liquid dropping device which comprises a tank body, a pressure equalizing plate is arranged in the tank body, an upper chamber and a lower chamber are respectively formed on the tank body above and below the pressure equalizing plate, the upper chamber is communicated with the lower chamber, the upper chamber is provided with a feed port and a ventilation port, and a plurality of dropper assemblies are arranged at the bottom of the lower chamber. The water dropper assembly opens liquid dropping when the pressure exceeds the opening pressure. According to the liquid dropping device, when the container begins to establish a liquid dropping state, the pressure at the bottom of the tank body is in a pressure equalizing state, uniform liquid drops can be formed, and when liquid is less and liquid dropping needs to be stopped, the dropper assembly can be closed in time, so that the liquid drops cannot overflow due to the influence of self weight, and the purposes of controlling the liquid dropping speed and reducing overflow are achieved. The dropping liquid is controllable; in the liquid filling process, liquid level fluctuation caused by the upper cavity cannot be conducted to the lower cavity, so that the pressure at the bottom of the tank body is in a pressure equalizing state, and liquid dripping is uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of food and medicine packaging machinery and equipment, in particular to a liquid dripping device. Background Art

[0002] Liquid nitrogen granulation technology uses the extremely low temperature of liquid nitrogen (-196°C) to quickly freeze the material into solid particles, thereby achieving the solidification and molding of the material. It has been widely used in the fields of pharmaceuticals, food, and chemical industry. In the process of liquid nitrogen granulation, it is necessary to drip the material evenly into the liquid nitrogen granulator. The current dripping device usually evenly opens multiple circular holes at the bottom of the dripping container. Such a structure easily leads to uneven dripping. When there is less liquid in the container, due to the large number of holes, the dripping state cannot be effectively established, which may cause some holes to fail to drip, and some holes to drip directly and quickly, and the dripping is uncontrollable; when the container establishes a dripping state, as the dripping proceeds, the liquid column pressure gradually decreases, and the dripping speed and dripping size also decrease, resulting in uneven dripping.

[0003] Chinese patent document CN212370110U discloses a dripper device for liquid nitrogen granulation, in which the diaphragm valve assembly controls the flow rate of liquid into the drip tray, and the liquid enters the distribution disc through the diversion effect of the drip tray, and a trumpet-shaped hollow structure is formed at the bottom of the distribution disc. Although the device slows down the flow rate through two-stage contraction diversion, it can form relatively uniform droplets when the container establishes a dripping state, but the slowing down of the flow rate will reduce the granulation efficiency; at the same time, the device cannot solve the problem that when there is less material liquid in the container, some holes cannot drip liquid, and some holes directly drip liquid quickly, and the dripping is uncontrollable. Utility Model Content

[0004] The utility model aims to solve the problems existing in the prior art in use and provides a liquid dripping device which has a simple structure, is reliable and has uniform and controllable liquid dripping.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A liquid dripping device comprises a tank body, wherein a pressure equalizing plate is arranged inside the tank body, and an upper chamber and a lower chamber are formed above and below the pressure equalizing plate respectively on the tank body, wherein the upper chamber is communicated with the lower chamber, wherein the upper chamber is provided with a feed port and an air vent, and wherein a plurality of dripper assemblies are arranged at the bottom of the lower chamber, wherein the dripper assemblies start dripping when the pressure exceeds the opening pressure.

[0007] As a further improvement of the above technical solution:

[0008] The pressure equalizing plate is provided with a through hole, and the upper chamber and the lower chamber are connected through the through hole.

[0009] The through hole is arranged in the middle of the pressure equalizing plate.

[0010] The pressure balancing plate is a flat plate.

[0011] The dripper assembly comprises a dripper and a flexible drip nozzle arranged in the dripper, the dripper is arranged at the bottom of the lower chamber, and the flexible drip nozzle is communicated with the lower chamber.

[0012] A dripping channel is arranged at the lower part of the dripper, and a buffer cavity is arranged between the flexible drip nozzle and the dripping channel.

[0013] The dripper assemblies are evenly arranged at the bottom of the lower chamber.

[0014] A heat-insulating sealing plate is provided at the bottom of the lower chamber, the dripper assembly is arranged in the heat-insulating sealing plate, and a dripping liquid heating mechanism is provided on the periphery of the dripper assembly on the heat-insulating sealing plate.

[0015] The dripping liquid heating mechanism comprises an electric belt wound around the outer wall of the dripper assembly.

[0016] An outer wall heating mechanism is arranged outside the tank body.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The dripping device of the utility model is provided with a dripper assembly with an opening pressure, so that when the container just starts to establish a dripping state, the pressure at the bottom of the tank body forms a balanced pressure state, and uniform droplets can be formed. When the liquid is less and the dripping needs to be stopped, the dripper assembly can also be closed in time, so that the droplets will not overflow due to the influence of their own weight, thereby achieving the purpose of controlling the dripping speed and reducing overflow, and the dripping is controllable; by controlling the switching state of the air vent, liquid can be poured into the tank body or the tank body can be pressurized, and the structure is simple and reliable; by providing an equalizing plate, during the process of pouring liquid, the liquid level fluctuation caused in the upper chamber will not be transmitted to the lower chamber, so that the pressure at the bottom of the tank body forms a balanced pressure state, and the dripping is uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the liquid dripping device of the present utility model.

[0020] Figure 2 It is a top view of the liquid dripping device of the present utility model.

[0021] Figure 3 It is a structural schematic diagram of a dripper assembly in the dripping device of the utility model.

[0022] Legend: 1. Tank body; 11. Upper chamber; 12. Lower chamber; 21. Feed port; 22. Vent; 3. Dripper assembly; 31. Dripper; 32. Flexible drip nozzle; 33. Drip channel; 34. Buffer chamber; 4. Pressure equalizing plate; 41. Through hole; 5. Insulation sealing plate; 51. Insulation chamber; 6. Drip heating mechanism; 7. Outer wall heating mechanism. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are 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, 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.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" 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.

[0027] like Figures 1 to 3 As shown, the dripping device of this embodiment includes a tank body 1, a pressure equalizing plate 4 is provided in the tank body 1, an upper chamber 11 and a lower chamber 12 are formed on the upper and lower sides of the pressure equalizing plate 4, respectively, the upper chamber 11 is connected with the lower chamber 12, the upper chamber 11 is provided with a feed port 21 and a vent 22, and a plurality of dripper assemblies 3 are provided at the bottom of the lower chamber, and the dripper assemblies 3 start dripping when the pressure exceeds the opening pressure.

[0028] The dripping device of this embodiment, when dripping, pours liquid into the tank body 1 from the feed port 21, and the liquid enters the lower chamber 12 from the upper chamber 11 through the pressure equalizing plate 4. When the liquid submerges the pressure equalizing plate 4, the pressure at the bottom of the tank body 1 forms a pressure equalizing state. At this time, the air vent 22 is closed, and the liquid is continuously poured. The gas in the tank body 1 is compressed and the pressure rises. When the pressure exceeds the opening pressure of the dripper assembly 3, dripping begins. When the feed port 21 stops feeding liquid and the pressure in the tank body 1 is less than the opening pressure of the dripper assembly 3, the dripper assembly 3 will also be closed in time. The dripping device of this embodiment is provided with a dripper assembly 3 with an opening pressure, so that when the container just starts to establish a dripping state, the pressure at the bottom of the tank body 1 forms a balanced pressure state, and uniform droplets can be formed. When the liquid is less and the dripping needs to be stopped, the dripper assembly 3 can also be closed in time, so that the droplets are not easily affected by their own weight and overflow from the dripper assembly 3, thereby achieving the purpose of controlling the dripping speed and reducing overflow, and the dripping is controllable; by controlling the switching state of the air vent 22, liquid can be poured into the tank body 1 or pressurized, and the structure is simple and reliable; by providing an equalizing plate 4, during the process of pouring liquid, the liquid level fluctuation caused in the upper chamber 11 is not easily transmitted to the lower chamber 12, so that the pressure at the bottom of the tank body 1 can form a balanced pressure state and the dripping is uniform.

[0029] Furthermore, in this embodiment, a through hole 41 is provided on the pressure equalizing plate 4, and the upper chamber 11 and the lower chamber 12 are connected through the through hole 41. The through hole 41 allows the injected liquid to flow smoothly from the upper chamber 11 to the lower chamber 12 and transmit the pressure. At the same time, other parts of the pressure equalizing plate 4 can absorb the pressure change caused by the fluctuation of the liquid level during the injection, so that the pressure fluctuation is not easily transmitted to the lower chamber 12, the pressure equalization effect is better, and the dripping is more uniform.

[0030] Furthermore, in this embodiment, the through hole 41 is disposed in the middle of the pressure equalizing plate 4. The through hole 41 is disposed in the middle of the pressure equalizing plate 4, which is conducive to uniform pressure transmission to each dripper assembly 3, better pressure equalization effect, and more uniform dripping.

[0031] Furthermore, in this embodiment, the pressure equalizing plate 4 is a flat plate. The flat plate has a simple structure and can make the height of the liquid column on each dripper assembly 3 the same, so that the pressure equalizing effect is better and the dripping is more uniform.

[0032] Furthermore, in this embodiment, the dripper assembly 3 includes a dripper 31 and a flexible drip nozzle 32 disposed in the dripper 31. The dripper 31 is disposed at the bottom of the lower chamber 12, and the flexible drip nozzle 32 is communicated with the lower chamber 12. When the pressure in the tank body 1 is less than the opening pressure of the flexible drip nozzle 32, the flexible drip nozzle 32 is closed; when the pressure in the tank body 1 is greater than the opening pressure of the flexible drip nozzle 32, the flexible drip nozzle 32 is opened and communicated with the lower chamber 12, so that the liquid in the lower chamber 12 can drip out smoothly, and the structure is simple and reliable.

[0033] Furthermore, in this embodiment, a dripping channel 33 is provided at the lower part of the dripper 31, and a buffer chamber 34 is provided between the flexible drip nozzle 32 and the dripping channel 33. The liquid flowing out of the flexible drip nozzle 32 needs to be buffered by the buffer chamber 34 first, and then dripped out through the dripping channel 33. The dripping channels 33 of different sizes or shapes can be provided according to different production requirements, and the dripping is more controllable and uniform.

[0034] Furthermore, in this embodiment, the dripper assembly 3 is evenly arranged at the bottom of the lower chamber 12. The evenly arranged dripper assembly 3 makes the dripping droplets evenly distributed, and at the same time, it can also make the liquid level in the tank body 1 drop evenly when dripping, so that the pressure equalization effect is better and the dripping is more uniform.

[0035] Furthermore, in this embodiment, a heat-insulating sealing plate 5 is provided at the bottom of the lower chamber 12, the dripper assembly 3 is provided in the heat-insulating sealing plate 5, and the heat-insulating sealing plate 5 is provided with a dripping heating mechanism 6 at the periphery of the dripper assembly 3. By providing the heat-insulating sealing plate 5 and the dripping heating mechanism 6, the liquid can be kept warm to prevent the liquid from freezing in the tank body 1 and the dripper assembly 3.

[0036] Furthermore, in this embodiment, the drip heating mechanism 6 includes an electric belt wound around the outer wall of the dripper assembly 3. The electric belt is simple and reliable to operate, and can evenly heat each dripper assembly 3, can prevent the liquid from freezing in the dripper assembly 3, and has a good heating effect.

[0037] Furthermore, in this embodiment, an outer wall heating mechanism 7 is provided outside the tank body 1. The outer wall heating mechanism 7 is evenly coated outside the tank body 1, which can prevent the liquid from freezing in the tank body 1 and has a good heating effect.

[0038] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as above in the preferred embodiment, it is not used to limit the utility model. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the methods and technical contents disclosed above without departing from the spirit and technical solution of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model, still fall within the scope of protection of the technical solution of the utility model.

Claims

1. A liquid dripping device, comprising a tank body (1), characterized in that: A pressure equalizing plate (4) is provided in the tank body (1), and an upper chamber (11) and a lower chamber (12) are formed on the tank body (1) above and below the pressure equalizing plate (4), respectively. The upper chamber (11) is connected to the lower chamber (12), and the upper chamber (11) is provided with a feed port (21) and a vent (22). A plurality of dripper assemblies (3) are provided at the bottom of the lower chamber (12), and the dripper assemblies (3) start dripping when the pressure exceeds the opening pressure.

2. The liquid dripping device according to claim 1, characterized in that: The pressure equalizing plate (4) is provided with a through hole (41), and the upper chamber (11) and the lower chamber (12) are connected via the through hole (41).

3. The liquid dripping device according to claim 2, characterized in that: The through hole (41) is arranged in the middle of the pressure equalizing plate (4).

4. The liquid dripping device according to claim 1, characterized in that: The pressure equalizing plate (4) is a flat plate.

5. The dripping device according to any one of claims 1 to 4, characterized in that: The dripper assembly (3) comprises a dripper (31) and a flexible drip nozzle (32) arranged in the dripper (31); the dripper (31) is arranged at the bottom of the lower chamber (12); and the flexible drip nozzle (32) is communicated with the lower chamber (12).

6. The liquid dropping device according to claim 5, characterized in that: A dripping channel (33) is provided at the lower part of the dripper (31), and a buffer chamber (34) is provided between the flexible drip nozzle (32) and the dripping channel (33) of the dripper (31).

7. The dripping device according to any one of claims 1 to 4, characterized in that: The dripper assemblies (3) are evenly arranged at the bottom of the lower chamber (12).

8. The liquid dripping device according to any one of claims 1 to 4, characterized in that: A heat-insulating sealing plate (5) is provided at the bottom of the lower chamber (12), the dripper assembly (3) is arranged inside the heat-insulating sealing plate (5), and a dripping liquid heating mechanism (6) is provided on the periphery of the dripper assembly (3) on the heat-insulating sealing plate (5).

9. The liquid dripping device according to claim 8, characterized in that: The dripping liquid heating mechanism (6) comprises an electric heating belt wound around the outer wall of the dripper assembly (3).

10. The liquid dripping device according to claim 9, characterized in that: The tank body (1) is provided with an outer wall heating mechanism (7).

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