Compressor for extracting natural food coloring

Abstract

The utility model provides a compressor for extracting natural food pigments, and belongs to the technical field of pigment extraction. Comprising a compressor body; one end of the connecting pipe is arranged on the air inlet of the compressor body in a communicating manner; the auxiliary assembly is arranged at the air inlet position of the compressor body and communicates with the other end of the connecting pipe. The filtering assembly is arranged at one end of the auxiliary assembly; and one end of the channel pipe is communicated with the auxiliary assembly, and the other end of the channel pipe is communicated with the filtering assembly. According to the utility model, the filter layer is arranged for preliminarily filtering large-particle impurities, so that large-particle substances such as dust, rust and the like which possibly enter the compressor and cause abrasion and blockage can be effectively intercepted, and then tiny impurity particles and water are continuously adsorbed through the adsorption layer, so that CO2 entering the compressor is ensured to be dry; and the abrasion risk of impurities to precision parts of the compressor and various problems caused by moisture are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pigment extraction, and particularly relates to a compressor for extracting natural edible pigments. Background Art

[0002] Natural edible pigments mainly come from secondary metabolites of plants, animals and microorganisms. Most natural edible pigments are intracellular substances, which are released from cells and diffuse into the solution through porous membrane walls. In the extraction process of natural edible pigments, when using supercritical gas extraction technology, it is necessary to provide and maintain the required high-pressure environment through the use of a compressor to ensure that solvents such as carbon dioxide (CO2) reach their supercritical state.

[0003] In the process of supercritical CO2 extraction, the inlet of the compressor is usually connected to a liquid CO2 storage tank, and the outlet is directly or indirectly connected to a heater. However, if the gas entering the compressor contains impurities and moisture, the impurities will cause wear to the precision components of the compressor, and may also cause blockage, affecting the normal operation of the compressor; during the compression process, with the increase of gas pressure and temperature change, condensation is very likely to occur. Once the liquid water mixes with the lubricating oil in the compressor, it will significantly reduce the lubricating effect of the lubricating oil, increase its corrosiveness, and may even cause component rust, thus seriously affecting the performance and service life of the compressor, and reducing the efficiency and quality of supercritical CO2 extraction. Therefore, this application provides a compressor for extracting natural edible pigments to meet the requirements. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a compressor for extracting natural edible pigments to solve the problems that in the process of supercritical CO2 extraction, the gas entering the compressor contains impurities and moisture, which will cause blockage of the compressor, component rust and affect the performance of the compressor.

[0005] To solve the above technical problems, the utility model provides the following technical solutions:

[0006] A compressor for extracting natural edible pigments, comprising: a compressor body; a connecting pipe, one end of which is communicated and arranged on the inlet of the compressor body; an auxiliary component, arranged at the inlet of the compressor body and communicated with the other end of the connecting pipe; a filtering component, arranged at one end of the auxiliary component; and a channel pipe, one end of which is communicated and arranged on the auxiliary component and the other end of which is communicated with the filtering component.

[0007] The filtering component includes: a first tank body, which is arranged at one end of the auxiliary component, and the other end of the channel pipe is communicated with the top of the first tank body; the auxiliary component includes: a second tank body, which is arranged at the air inlet of the compressor body, and the top of the second tank body is communicated with the other end of the connecting pipe.

[0008] It further includes: a filtering layer, which is arranged in the first tank body and is used for initially filtering larger particle impurities; an adsorption layer, which is arranged in the first tank body and is located below the filtering layer and is used for adsorbing tiny impurity particles and moisture; a funnel, which is arranged in the first tank body and is located below the adsorption layer and is used for collecting the liquid impurities separated from the adsorption layer.

[0009] It further includes: a liquid level sensor, which is arranged in the first tank body and is located below the funnel.

[0010] It further includes: a discharge valve, which is communicatively arranged at the bottom of the first tank body and is electrically connected to the liquid level sensor.

[0011] It further includes: a plurality of partition plates, which are arranged in the second tank body; a plurality of through holes, which are arranged on the partition plates.

[0012] The through holes on two adjacent partition plates are staggeredly distributed.

[0013] Compared with the prior art, the utility model has at least the following beneficial effects:

[0014] In the above solution, by arranging the filtering layer for initially filtering larger particle impurities, large particle substances such as dust and rust that may enter the compressor and cause wear and blockage can be effectively intercepted. Then, through the adsorption layer, tiny impurity particles and moisture are continuously adsorbed to ensure that the CO2 entering the compressor is dry, reducing the wear risk of impurities to the precision components of the compressor and various problems caused by moisture.

[0015] By arranging a plurality of partition plates and a plurality of staggeredly distributed through holes, when the gas enters the second tank body from the first tank body through the channel pipe, the gas needs to pass through the through holes on the partition plates. The staggered distribution of the through holes on adjacent partition plates makes the gas flow path complex, increasing the flow resistance and residence time of the gas in the tank body, and can effectively disperse the pressure fluctuation to make the gas pressure more stable.

[0016] By arranging the funnel to collect the liquid impurities separated from the adsorption layer, the liquid level situation below the funnel can be monitored in real time through the liquid level sensor. When the liquid level reaches a certain height, the discharge valve is controlled to open to discharge the accumulated impurities and moisture, ensuring the timely cleaning of impurities and moisture and preventing them from accumulating excessively in the first tank body and re-mixing into the gas and entering the compressor. Description of the Drawings

[0017] Figure 1 Schematic diagram of a compressor for extracting natural edible pigments.

[0018] Figure 2 Schematic diagram of the structure of the filtration component.

[0019] Figure 3 Schematic diagram of the structure of the auxiliary component.

[0020] [Reference numerals]

[0021] 1. Compressor body; 2. Connecting pipe; 3. Filtration component; 4. Channel pipe; 5. Auxiliary component; 31. First tank; 32. Filtration layer; 33. Adsorption layer; 34. Funnel; 35. Discharge valve; 36. Liquid level sensor; 51. Second tank; 52. Through hole; 53. Partition board.

[0022] As shown in the figure, in order to clearly show the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments, and the adjustments or modifications still fall within the scope of the appended claims. Detailed implementation manners

[0023] The following describes in detail a compressor for extracting natural edible pigments provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0024] As Figure 1 - Figure 3 shown, an embodiment of the present invention provides a compressor for extracting natural edible pigments, including: a compressor body 1; a connecting pipe 2, one end of which is communicatively connected to the air inlet of the compressor body 1; an auxiliary component 5, arranged at the air inlet of the compressor body 1 and communicatively connected to the other end of the connecting pipe 2; a filtration component 3, arranged at one end of the auxiliary component 5; a channel pipe 4, one end of which is communicatively connected to the auxiliary component 5 and the other end of which is communicatively connected to the filtration component 3.

[0025] This ensures that gas can flow smoothly between the two components, guiding the gas to flow from the first tank 31 to the second tank 51 according to the designed process. An electromagnetic valve is provided on the channel pipe 4 for controlling the opening or closing of the channel pipe 4.

[0026] The filtering component 3 includes: a first tank body 31, which is arranged at one end of the auxiliary component 5, and the other end of the channel pipe 4 communicates with the top of the first tank body 31; the auxiliary component 5 includes: a second tank body 51, which is arranged at the air inlet of the compressor body 1, and the top of the second tank body 51 communicates with the other end of the connecting pipe 2.

[0027] The top of the first tank body 31 can be connected to a delivery pipe, and the delivery pipe is connected to a CO2 storage tank, providing a gas source directly from the CO2 storage tank for the first tank body 31, which helps to ensure a continuous and stable gas inflow into the first tank body 31.

[0028] It further includes: a filtering layer 32, which is arranged inside the first tank body 31 and is used for initially filtering larger particle impurities; an adsorption layer 33, which is arranged inside the first tank body 31 and is located below the filtering layer 32 and is used for adsorbing tiny impurity particles and moisture; a funnel 34, which is arranged inside the first tank body 31 and is located below the adsorption layer 33 and is used for collecting the liquid impurities separated from the adsorption layer 33.

[0029] By arranging the filtering layer 32, during the supercritical CO2 extraction process, the CO2 gas may carry impurities such as dust and rust. The filtering layer 32 can effectively intercept these large particle impurities. Then, the adsorption layer 33 absorbs some tiny impurities and moisture that may still exist in the gas. The liquid impurities separated from the adsorption layer 33 are collected through the funnel 34. A backwashing device can be arranged inside the first tank body 31, and the backwashing operation can be performed at an appropriate time, such as during non-production periods or when it is detected that the impurity accumulation reaches a certain level. For example, a spray head type backwashing device can be arranged inside the first tank body 31. The spray head can be installed at the top or side of the tank body near the filtering layer 32 and the adsorption layer 33. The spray head is connected to an external backwashing medium supply source through a pipeline. When backwashing, the channel pipe 4 and the delivery pipe are closed, and the backwashing medium is sprayed out through the spray head under a certain pressure. For the filtering layer 32, the medium sprayed out by the spray head impacts the surface of the filtering layer 32, flushing and carrying away the large particle impurities intercepted on the filter screen or filter element. For the adsorption layer 33, the medium sprayed out by the spray head can enter the pore structure of the adsorption layer 33, flushing out the adsorbed tiny impurity particles and moisture, so as to achieve the purpose of cleaning the filtering layer 32 and the adsorption layer 33. The spray head is in a closed and sealed state when not in use.

[0030] It further includes: a liquid level sensor 36, which is arranged inside the first tank body 31 and below the funnel 34. By arranging the liquid level sensor 36, the liquid level height below the funnel 34 inside the first tank body 31 can be accurately sensed. During the supercritical CO2 extraction process, as the adsorption layer 33 adsorbs impurities and moisture, the separated liquid impurities will accumulate in the funnel 34 and gradually reach a certain liquid level. The liquid level sensor 36 can obtain the liquid level information in real time, providing an accurate data basis for subsequent operations. The liquid level sensor 36 is electrically connected to the discharge valve 35. When it detects that the liquid level reaches the preset height, it can promptly trigger the discharge valve 35 to open. This automated control mechanism avoids the untimely and inaccurate manual monitoring and operation.

[0031] It further includes: a discharge valve 35, which is communicatively arranged at the bottom of the first tank body 31 and electrically connected to the liquid level sensor 36. By arranging the discharge valve 35, it ensures that the impurities and moisture collected by the funnel 34 inside the first tank body 31 can be discharged in a timely manner.

[0032] It further includes: a plurality of partition plates 53, which are arranged inside the second tank body 51; a plurality of through holes 52, which are arranged on the partition plates 53. The partition plates 53, and the specific number can be selected according to actual needs, help buffer the pressure of the gas entering the second tank body 51. When the gas enters the second tank body 51 from the channel pipe 4, there may be pressure fluctuations. The partition plates 53 will prevent the gas from passing directly and quickly, causing the gas to form a certain buffer area in the space between the partition plates 53. When the gas passes through these partition plates 53, the pressure will be gradually adjusted.

[0033] The through holes 52 on two adjacent partition plates 53 are arranged in a staggered manner. By arranging the through holes 52 in a staggered manner, the flow path of the gas inside the second tank body 51 becomes more complex. Due to the staggered arrangement of the through holes 52, the gas cannot directly pass through the next partition plate 53 vertically, but needs to change direction to find the next through hole 52 to continue moving forward, prompting the gas to mix continuously during the flow process. For example, the gas near the tank wall and the gas in the central area of the tank will intersect when passing through the staggered through holes 52, thus making the composition and properties of the gas more uniform.

[0034] In the technical solution provided by the present utility model, gas enters the first tank body 31. The gas passes through the filter layer 32 to initially filter out larger particulate impurities. The gas flows downward and passes through the adsorption layer 33 to adsorb tiny impurity particles and moisture, further improving the purity of the gas. The liquid impurities separated from the adsorption layer 33 drip downward due to gravity and are collected by the funnel 34 located below the adsorption layer 33. The gas then enters the second tank body 51 through the channel pipe 4. Through the partition plate 53 and the through holes 52, since the through holes 52 on two adjacent partition plates 53 are staggeredly distributed, the gas is forced to continuously change its flow direction, thereby making its flow path become complex, increasing the flow resistance and residence time of the gas in the tank body, which helps to further stabilize the pressure and regulate the flow rate. Finally, it enters the compressor body 1 through the connecting pipe 2, and then the compressor body 1 compresses the gas, causing the pressure and temperature to rise. The compressed gas is discharged from the exhaust port of the compressor body 1; when the liquid level reaches a certain height, the liquid level sensor 36 transmits a signal to the drain valve 35 electrically connected thereto to control the drain valve 35 to open and discharge the accumulated impurities and moisture from the first tank body 31.

[0035] The present utility model covers any alternatives, modifications, equivalent methods, and solutions made within the essence and scope of the present utility model. To enable the public to have a thorough understanding of the present utility model, specific details are described in detail in the above preferred embodiments of the present utility model. However, those skilled in the art can fully understand the present utility model even without the description of these details. Additionally, well-known methods, processes, procedures, components, and circuits are not described in detail to avoid unnecessary confusion to the essence of the present utility model.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A compressor for extracting natural edible pigments, characterized in that: include: Compressor body (1); A connecting pipe (2), one end of which is connected to the air inlet of the compressor body (1); An auxiliary component (5) is arranged at the air inlet of the compressor body (1) and is connected to the other end of the connecting pipe (2); A filter assembly (3) arranged at one end of the auxiliary assembly (5); A channel tube (4) has one end connected to the auxiliary component (5) and the other end connected to the filter component (3).

2. The compressor for extracting natural edible pigments according to claim 1, characterized in that: The filter assembly (3) comprises: A first tank body (31) is arranged at one end of the auxiliary component (5), and the other end of the channel tube (4) is connected to the top of the first tank body (31); The auxiliary component (5) comprises: The second tank body (51) is arranged at the air inlet of the compressor body (1), and the top of the second tank body (51) is connected to the other end of the connecting pipe (2).

3. The compressor for extracting natural edible pigments according to claim 2, characterized in that: Also includes: A filter layer (32), disposed in the first tank (31), for preliminarily filtering larger particles of impurities; An adsorption layer (33) is arranged in the first tank body (31) and is located below the filter layer (32), and is used for adsorbing tiny impurity particles and moisture; A funnel (34) is arranged in the first tank body (31) and is located below the adsorption layer (33), and is used to collect liquid impurities separated from the adsorption layer (33).

4. The compressor for extracting natural edible pigments according to claim 3, characterized in that: Also includes: A liquid level sensor (36) is arranged in the first tank (31) and is located below the funnel (34).

5. The compressor for extracting natural edible pigments according to claim 4, characterized in that: Also includes: A discharge valve (35) is arranged at the bottom of the first tank (31) and is electrically connected to the liquid level sensor (36).

6. The compressor for extracting natural edible pigments according to claim 2, characterized in that: Also includes: A plurality of partitions (53) are arranged in the second tank body (51); A plurality of through holes (52) are arranged on the partition plate (53).

7. The compressor for extracting natural edible pigments according to claim 6, characterized in that: The through holes (52) on two adjacent partitions (53) are distributed in a staggered manner.

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