High-precision liquid equalization device and use method thereof

Abstract

The present invention discloses a high-precision liquid equal distribution device, including a shell and a partition; the shell is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are located at two ends of the shell; the partition is fixed in the shell and divides the internal space of the shell into a plurality of identical guide layers; the number of layers of the guide layers is the same as the number of the liquid outlets, and each guide layer is respectively connected with a different liquid outlet; the shell is provided with a connecting hole and a vent hole respectively connected with each guide layer; the connecting hole is used to transport the liquid input from the liquid inlet to each guide layer; the vent hole is used to make the air pressure of each guide layer consistent. The partition divides the interior of the shell into a plurality of identical guide layers, and each guide layer is interconnected by the vent hole, so that the air pressure of each guide layer is the same, ensuring that the liquid level height of each guide layer is the same, and then ensuring that the volume of the liquid entering each guide layer is the same, so that after the shell rotates, the liquid of each guide layer is discharged from the liquid outlet to achieve equal distribution, and the operation is simple and efficient. The present invention also provides a method for using the above device.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid dispensing, and more specifically, to a high-precision liquid dispensing device, and also to a method for using the high-precision liquid dispensing device. Background Art

[0002] Liquid equalization is an important issue in the fields of laboratories and bioengineering. In the prior art, liquid equalization is done by weighing or using a measuring cylinder. However, the weighing and measuring cylinder methods can only separate each portion of liquid one by one, which is cumbersome and inefficient.

[0003] Therefore, how to make the liquid distribution operation simple and efficient is a problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0004] In view of this, the present invention provides a high-precision liquid equalization device, wherein a plurality of identical guide layers are arranged in the shell, and each guide layer is interconnected through a vent hole, so that the air pressure in each guide layer is the same, ensuring that the liquid level in each guide layer is the same, and then ensuring that the volume of liquid entering each guide layer is the same, so that after the shell rotates, the liquid in each guide layer is discharged from different liquid outlets to achieve equal distribution, which is simpler to operate and more efficient than the manual weighing or measuring and dividing with a measuring cylinder in the prior art. The present invention also provides a method for using a high-precision liquid equalization device, which can easily and efficiently divide multiple portions of liquid at the same time.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A high-precision liquid equalization device, comprising:

[0007] A shell, wherein the shell is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are located at two ends of the shell;

[0008] a partition, the partition being fixed in the shell and dividing the internal space of the shell into a plurality of identical guide layers; the number of the guide layers is the same as the number of the liquid outlets, and each of the guide layers is connected to a different one of the liquid outlets;

[0009] Wherein, the shell is provided with a connecting hole and a vent hole; the connecting hole is connected to each of the guide layers and is used to transport the liquid input from the liquid inlet to each of the guide layers; the vent hole is connected to each of the guide layers and is used to make the air pressure of each of the guide layers consistent.

[0010] Preferably, in the above-mentioned high-precision liquid equal distribution device, the high-precision liquid equal distribution device has a filling state and a liquid separation state. In the filling state, the liquid inlet is located at the lower end of the outer shell, and the liquid outlet is located at the upper end of the outer shell; in the liquid separation state, the liquid inlet is located at the upper end of the outer shell, and the liquid outlet is located at the lower end of the outer shell.

[0011] Preferably, in the above-mentioned high-precision liquid equal distribution device, the vent hole is located at the end of the shell where the liquid inlet is arranged.

[0012] Preferably, in the above-mentioned high-precision liquid equalization device, the guide layer includes a main body part and a bending channel part; the root end of the bending channel part is connected to the main body part, and the top end is connected to the vent hole; the root end to the top end of the bending channel part extends along the direction from the end where the liquid outlet is set in the shell to the end where the liquid inlet is set.

[0013] Preferably, in the above-mentioned high-precision liquid equal distribution device, the vent hole is close to the liquid inlet.

[0014] Preferably, in the above-mentioned high-precision liquid equal distribution device, the main body part includes a cache part and a guide part, the cache part is in a shape with one end open, and the opening of the cache part faces the connecting hole, which is used for temporarily storing all or part of the liquid that has been filled into the guide layer when the high-precision liquid equal distribution device switches from a filling state to a liquid distribution state, and then transporting the cached liquid to the guide part; the guide part is connected to the liquid outlet.

[0015] Preferably, in the above-mentioned high-precision liquid equal distribution device, there are multiple partitions.

[0016] Preferably, in the above-mentioned high-precision liquid equal distribution device, the partitions are arranged in parallel.

[0017] A method for using a high-precision liquid equalizing device, used in the high-precision liquid equalizing device described in any one of the above technical solutions, comprising:

[0018] 1) The liquid outlet is located at the upper end of the housing, and the liquid inlet is located at the lower end of the housing, and the liquid to be evenly distributed is input into the housing from the liquid inlet, and then the liquid inlet is closed;

[0019] 2) rotating the housing until the liquid inlet is located at the upper end of the housing and the liquid outlet is located at the lower end of the housing;

[0020] 3) Open each of the liquid outlets to allow the equally divided liquids to flow into different containers respectively.

[0021] Preferably, in the above method of use, the housing is rotated along a vertical plane during step 2).

[0022] The present invention provides a high-precision liquid equal distribution device, comprising a shell and a partition; the shell is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are located at two ends of the shell; the partition is fixed in the shell and divides the internal space of the shell into a plurality of identical guide layers; the number of the guide layers is the same as the number of the liquid outlets, and each guide layer is connected with a different liquid outlet respectively; wherein the shell is provided with a connecting hole and a vent hole; the connecting hole is connected with each guide layer and is used for conveying the liquid input from the liquid inlet to each guide layer; the vent hole is connected with each guide layer and is used for making the air pressure of each guide layer consistent.

[0023] In the above-mentioned high-precision liquid equal distribution device, the shell is divided into multiple identical guide layers by partitions, and the guide layers are interconnected through ventilation holes, so that the air pressure in each guide layer is the same, ensuring that the liquid level height in each guide layer is the same, and then ensuring that the volume of liquid entering each guide layer is the same, so that after the shell rotates, the liquid in each guide layer is discharged from the liquid outlet to achieve equal distribution. Compared with the manual weighing or measuring and dividing with a measuring cylinder in the prior art, the operation is simpler and more efficient.

[0024] The present invention also provides a method for using the high-precision liquid equalizing device, which can easily and efficiently equalize multiple portions of liquid at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A cross-sectional view of a high-precision liquid equalization device provided by an embodiment of the present invention;

[0027] Figure 2 A three-dimensional diagram of a high-precision liquid equalization device provided by an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of the structure of the high-precision liquid equal distribution device provided by an embodiment of the present invention when in a filling state;

[0029] Figure 4 A schematic diagram of the structure of the high-precision liquid equal distribution device provided in an embodiment of the present invention during the process of switching from a filling state to a liquid distribution state;

[0030] in, Figure 1-Figure 4 middle:

[0031] Shell 101; liquid inlet 111; liquid outlet 112; communication hole 113; vent hole 114; guide layer 102; main body 121; guide part 1211; buffer part 1212; liquid baffle plate 12121; bottom plate 12122; bending channel part 122. DETAILED DESCRIPTION

[0032] The embodiment of the present invention discloses a high-precision liquid equalizing device, wherein a plurality of identical guide layers are arranged in the shell, and each guide layer is interconnected through a vent hole, so that the air pressure in each guide layer is the same, ensuring that the liquid level in each guide layer is the same, and then ensuring that the volume of liquid entering each guide layer is the same, so that after the shell rotates, the liquid in each guide layer is discharged from different liquid outlets to achieve equal distribution. Compared with the manual weighing or measuring and equalizing with a measuring cylinder in the prior art, the operation is simpler and more efficient. The embodiment of the present invention also discloses a method for using the high-precision liquid equalizing device, which can easily and efficiently divide multiple portions of liquid at the same time.

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 4 The embodiment of the present invention provides a high-precision liquid equalization device, including a shell 101 and a partition; the shell 101 is provided with a liquid inlet 111 and a liquid outlet 112, and the liquid inlet 111 and the liquid outlet 112 are located at both ends of the shell 101; the partition is fixed in the shell 101 and divides the internal space of the shell 101 into a plurality of identical guide layers 102 (that is, the shape and size of each guide layer 102 are the same); the number of layers of the guide layer 102 is the same as the number of the liquid outlet 112, and each guide layer 102 is connected to a different liquid outlet 112; wherein, the shell 101 is provided with a connecting hole 113 and a vent hole 114; the connecting hole 113 is connected to each guide layer 102, and is used to transport the liquid input from the liquid inlet 111 to each guide layer 102; the vent hole 114 is connected to each guide layer 102, and is used to make the air pressure of each guide layer 102 consistent.

[0035] In the high-precision liquid equal distribution device provided by the embodiment of the present invention, the shell 101 is divided into multiple identical guide layers 102 by partitions, and each guide layer 102 is interconnected through the vent holes 114, so that the air pressure in each guide layer 102 is the same, ensuring that the liquid level height in each guide layer 102 is the same, and then ensuring that the volume of liquid entering each guide layer 102 is the same, so that after the shell 101 rotates, the liquid in each guide layer 102 is discharged from the liquid outlet 112 to achieve equal distribution. Compared with the manual weighing or measuring and dividing with a measuring cylinder in the prior art, the operation is simpler and more efficient.

[0036] The high-precision liquid equalizing device has a filling state and a liquid-dispensing state. In the filling state, the liquid inlet 111 is located at the lower end of the housing 101, and the liquid outlet 112 is located at the upper end of the housing 101; in the liquid-dispensing state, the liquid inlet 111 is located at the upper end of the housing 101, and the liquid outlet 112 is located at the lower end of the housing 101. During application, when the high-precision liquid equalizing device is switched from the filling state to the liquid-dispensing state, the housing 101 is rotated 180° in a vertical plane.

[0037] In the high-precision liquid distribution device provided in this embodiment, the shell 101 has an internal space completely evenly divided by partitions, and the guide layers 102 are connected only by connecting holes 113 and vent holes 114, ensuring that the shapes and sizes of the guide layers 102 are completely consistent. In the liquid separation state, the liquid inlet 111 of the shell 101 is at the bottom and the liquid outlet 112 is at the top, fixed vertically, and then the liquid enters from the liquid inlet 111 and flows to each guide layer 102 through the connecting hole 113. The gas inside each guide layer 102 circulates with each other through the vent 114, ensuring that the air pressure of each guide layer 102 is consistent, ensuring that the liquid level of each guide layer 102 is maintained at the same horizontal plane under the action of gravity, and at the same time, the shape and size of each guide layer 102 are completely consistent, so that the volume of liquid in each guide layer 102 is the same; then the shell 101 is controlled to rotate 180° quickly in the vertical plane to switch to the liquid separation state, and the liquid in the guide layer 102 quickly flows from the liquid inlet 111 to the liquid outlet 112, and then flows out from the liquid outlet 112 to each container to achieve equal distribution of the liquid. When more portions need to be divided equally, just increase the corresponding number of guide layers 102 to meet the equal distribution requirements of more portions.

[0038] In the above-mentioned high-precision liquid equalization device, the vent hole 114 is located at the end of the housing 101 where the liquid inlet 111 is arranged. Specifically, the guide layer 102 of the above-mentioned high-precision liquid equalization device includes a main body 121 and a bending channel part 122; the root end of the bending channel part 122 is connected to the main body 121, and the top end is connected to the vent hole 114; the root end to the top end of the bending channel part 122 extends along the end of the housing 101 where the liquid outlet 112 is arranged to the end where the liquid inlet 111 is arranged.

[0039] In the high-precision liquid equalization device provided in this embodiment, the arrangement of the vent holes 114 can not only ensure the air pressure balance of each guide layer 102, but also ensure that when the shell 101 rotates to discharge liquid in the switching state, the liquid in different guide layers 102 will not circulate with each other through the connecting holes 113, thereby ensuring the uniformity of the liquid in each guide layer 102 and further improving the equalization effect.

[0040] Specifically, in the above high-precision liquid distribution device, the vent hole 114 is close to the liquid inlet 111. The cross section of the connecting hole 113 is square and has a size of 8×8 mm, which is used to make the liquid flow quickly to each guide layer 102. Each bending channel part 122 is a square column and has a size of 8×8 mm.

[0041] In the above-mentioned high-precision liquid equalization device, the main body 121 includes a cache part 1212 and a guide part 1211. The cache part 1212 is in a shape with one end open, and the opening of the cache part 1212 faces the connecting hole 113, which is used to temporarily store all or part of the liquid that has been filled into the guide layer 102 when the high-precision liquid equalization device switches from the filling state to the liquid dispensing state, and then transport the cached liquid to the guide part 1211; the guide part 1211 is connected to the liquid outlet 112.

[0042] The design of the buffer portion 1212 is particularly beneficial for ensuring accurate equal distribution of liquid when equalizing a small volume of liquid, thereby reducing the error to an extremely low level. Figure 1 As shown, the buffer part 1212 is a semi-open small container composed of a liquid baffle plate 12121 and a bottom plate 12122. The capacity of the small container is 3 / 4 of the total amount of the small volume liquid evenly divided by the high-precision liquid evenly dividing device. When the housing 101 rotates vertically 90° counterclockwise, the liquid first flows into the small container, and the liquid in each guide layer 102 is disconnected from the connecting hole 113. At this time, the total volume of liquid has been evenly divided into each guide layer 102 in the housing 101. Figure 4 As shown, the housing 101 is then rotated counterclockwise by 90° to allow the liquid to flow out of the liquid outlet 112 to other containers, thereby achieving even distribution of the liquid.

[0043] Specifically, in the above-mentioned high-precision liquid equal distribution device, there are multiple partitions, and the partitions are arranged in parallel.

[0044] The embodiment of the present invention further provides a method for using a high-precision liquid equal distribution device, which is used for the high-precision liquid equal distribution device provided in the above embodiment, comprising:

[0045] 1) The liquid outlet 112 is placed at the upper end of the housing 101 and the liquid inlet 111 is located at the lower end of the housing 101, the liquid to be evenly distributed is input into the housing 101 from the liquid inlet 111, and then the liquid inlet 111 is closed;

[0046] 2) rotating the housing 101 until the liquid inlet 111 is located at the upper end of the housing 101 and the liquid outlet 112 is located at the lower end of the housing 101;

[0047] 3) Open each liquid outlet 112 to allow the equally divided liquids to flow into different containers respectively.

[0048] When performing the above step 2), the housing 101 is rotated along a vertical plane.

[0049] The following describes the experimental results of the high-precision liquid equalization device provided in the above embodiment:

[0050] Example 1

[0051] According to the above steps, 50 containers are prepared, and they are weighed separately. A high-precision liquid equalization device with a 1:50 ratio is used. The total liquid intake is 5L, and it is divided into 50 portions, each of which is 0.1L. The liquid is evenly divided according to the steps to obtain containers with evenly divided liquid. The 50 containers with evenly divided liquid are weighed separately, and then the weight of the empty container is subtracted to obtain the actual liquid volume divided by each guide layer 102. Then, the difference between each container and the culture bottle after diversion by the diverter of the control group of the prior art is calculated. Repeat 5 times to obtain a series of test data and consistency error values.

[0052] The test results of the culture bottles after the shunt of the prior art control group are as follows:

[0053]

[0054]

[0055]

[0056] The test results of the culture bottles after the high-precision liquid equalization device of this application is as follows:

[0057]

[0058]

[0059]

[0060] The test results show that after the prior art control group splitter split 5L into 50 portions, the consistency error of the liquid inlet volume of the test T225 bottle was 9.7mL; while the high-precision liquid equalization device of the present application split 5L into 50 portions and the consistency error was 1.6mL; the consistency error was optimized by 83.5%.

[0061] The structure of the liquid baffle 12121 in the high-precision liquid equal distribution device provided in this embodiment is an innovative design, which effectively reduces the liquid surface area in the existing liquid distributor under the diversion state. In addition, it avoids the problem of liquid jumping in the shell 101, and provides feasibility for efficient and large-scale equal distribution of liquid portions. The consistency error of the divided liquid can be controlled within 0.5mL+2%VmL.

[0062] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the method disclosed in the embodiment, since it corresponds to the device disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0063] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-precision liquid equalization device, characterized in that: include: A shell, wherein the shell is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are located at two ends of the shell; a partition, the partition being fixed in the shell and dividing the internal space of the shell into a plurality of identical guide layers; the number of the guide layers is the same as the number of the liquid outlets, and each of the guide layers is connected to a different one of the liquid outlets; The shell is provided with a connecting hole and a vent hole; the connecting hole is connected to each of the guide layers and is used to transport the liquid input from the liquid inlet to each of the guide layers; the vent hole is connected to each of the guide layers and is used to make the air pressure of each of the guide layers consistent; The high-precision liquid equalization device has a filling state and a liquid separation state. In the filling state, the liquid inlet is located at the lower end of the shell, and the liquid outlet is located at the upper end of the shell; in the liquid separation state, the liquid inlet is located at the upper end of the shell, and the liquid outlet is located at the lower end of the shell; The vent hole is located at the end of the housing where the liquid inlet is arranged; The guide layer includes a main body and a bending channel part; the root end of the bending channel part is connected to the main body, and the top end is connected to the vent hole; the root end to the top end of the bending channel part extends along the direction from the end of the shell where the liquid outlet is set to the end of the shell where the liquid inlet is set.

2. The high-precision liquid equalization device according to claim 1, characterized in that: The vent hole is close to the liquid inlet.

3. The high-precision liquid equalization device according to claim 1, characterized in that: The main body portion includes a buffer portion and a guide portion. The buffer portion is in a shape of an opening at one end, and the opening of the buffer portion faces the connecting hole, and is used to temporarily store all or part of the liquid that has been filled into the guide layer when the high-precision liquid equal distribution device switches from a filling state to a liquid distribution state, and then transport the buffered liquid to the guide portion; the guide portion is connected to the liquid outlet.

4. The high-precision liquid equalization device according to claim 1, characterized in that: There are multiple partitions.

5. The high-precision liquid equalization device according to claim 4, characterized in that: The partitions are arranged in parallel.

6. A method for using a high-precision liquid equalizing device, used for the high-precision liquid equalizing device according to any one of claims 1 to 5, characterized in that: include: 1) The liquid outlet is located at the upper end of the housing, and the liquid inlet is located at the lower end of the housing, and the liquid to be evenly distributed is input into the housing from the liquid inlet, and then the liquid inlet is closed; 2) rotating the housing until the liquid inlet is located at the upper end of the housing and the liquid outlet is located at the lower end of the housing; 3) Open each of the liquid outlets to allow the equally divided liquids to flow into different containers respectively.

7. The method of use according to claim 6, characterized in that: When performing step 2), the housing is rotated along a vertical plane.

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