White spirit conveying and metering device based on single-pipe exhaust

Abstract

The utility model belongs to the technical field of white spirit conveying and metering, and discloses a white spirit conveying and metering device based on single-pipe exhaust, which is arranged on a white spirit conveying pipeline and comprises a gas-liquid separation cylinder and a residual spirit collecting box, and the gas-liquid separation cylinder is provided with a liquid inlet and a liquid outlet; a liquid outlet of the gas-liquid separation cylinder is connected with a mass flow meter through a liquid discharge pipe, an outlet electric valve is mounted on a pipeline of the liquid discharge pipe, and a first liquid level sensor is mounted on a cylinder body of the gas-liquid separation cylinder; the top of the gas-liquid separation cylinder is connected with the residual wine collecting box through a first pipeline, an exhaust valve is arranged on the first pipeline between the gas-liquid separation cylinder and the residual wine collecting box, a conducting valve based on air pressure control is arranged on the second pipeline between the gas-liquid separation cylinder and the residual wine collecting box, and when the pressure in the gas-liquid separation cylinder is smaller than that in the residual wine collecting box, the conducting valve is switched on. When the pressure in the gas-liquid separation cylinder is larger than that in the residual wine collecting box, the conducting valve is switched off, and a gas hole used for releasing gas is formed in the top of the residual wine collecting box.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquor conveying and metering, and in particular relates to a liquor conveying and metering device based on single-tube exhaust. Background Art

[0002] When the liquor stored in the pottery jars in the wine warehouse is being drawn out and blended, the liquor in the pottery jar needs to be pumped out with a self-priming pump and accurately measured. When the liquor is just being pumped out (referring to the transfer and delivery of the liquor) and when the liquor in the pottery jar is almost drained, the self-priming pump will suck in a lot of air, and the air will enter the metering equipment along the pipeline. The metering equipment uses a mass flow meter. When there is no air mixed in the liquor, the metering accuracy of the mass flow meter is very high, up to 0.1%. Because of the air mixed in the liquor, the metering accuracy of the mass flow meter will become very poor, up to more than 10%, resulting in the inability to achieve accurate measurement.

[0003] In order to achieve accurate metering, the liquor cannot be mixed with air before entering the mass flow meter. The gas-liquid mixture sucked in by the self-priming pump must first be free of air before entering the mass flow meter, so that accurate metering can be achieved;

[0004] At present, the commonly used exhaust method is double-tube reflux exhaust, that is, adding a reflux pipe to the pottery jar. When the self-priming pump inhales air, the three-way valve at the front end of the mass flow meter should be manually switched to the reflux pipe to allow the gas-liquid mixture to return to the pottery jar along the reflux pipe to complete the exhaust. After the air is exhausted, the three-way valve is switched to the flow meter again. This double-tube reflux exhaust technology has some disadvantages: 1. A reflux pipe needs to be arranged separately. The space inside the wine warehouse is very large. This DN50-caliber stainless steel reflux pipe is more than 30 meters long and very heavy; 2. After each jar of wine is finished and switched to the next jar, the reflux pipe must be changed together with the jar. The operation is very cumbersome and increases the labor intensity; 3. A valve needs to be installed. Every time the air needs to be exhausted and the exhaust is completed, the valve needs to be manually switched to open and close in time, which increases the labor intensity and reduces the work efficiency. Utility Model Content

[0005] In view of the problems raised by the above background technology, the purpose of the utility model is to provide a liquor conveying and metering device based on single-tube exhaust.

[0006] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0007] A liquor conveying and metering device based on single-tube exhaust is arranged on a liquor conveying pipeline, comprising a gas-liquid separation cylinder and a residual liquor collection box, wherein the gas-liquid separation cylinder is provided with a liquid inlet and a liquid outlet;

[0008] The liquid discharge port of the gas-liquid separation cylinder is connected to a mass flow meter through a liquid discharge pipe, an outlet electric valve is installed on the pipeline of the liquid discharge pipe, and a first liquid level sensor is installed on the cylinder body of the gas-liquid separation cylinder;

[0009] The top of the gas-liquid separation cylinder is connected to the residual wine collection box via a first pipeline, an exhaust valve is arranged on the first pipeline between the gas-liquid separation cylinder and the residual wine collection box, the bottom of the residual wine collection box is connected to the gas-liquid separation cylinder via a second pipeline, a conduction valve based on air pressure control is arranged on the second pipeline between the gas-liquid separation cylinder and the residual wine collection box, when the pressure in the gas-liquid separation cylinder is lower than the pressure in the residual wine collection box, the conduction valve is opened, when the pressure in the gas-liquid separation cylinder is higher than the pressure in the residual wine collection box, the conduction valve is closed, and an air hole for releasing gas is arranged on the top of the residual wine collection box.

[0010] It is further defined that the liquid inlet is located in the axial direction of the gas-liquid separation cylinder, the liquid discharge port is located in the diameter direction of the gas-liquid separation cylinder, and the liquid discharge port is at the bottom of the gas-liquid separation cylinder. With such a structural design, the axial liquid inlet is convenient for connection with external pipelines, and the liquid discharge port is located at the bottom to ensure that the liquor is completely discharged and avoid residue.

[0011] It is further defined that a buffer head is installed at a position corresponding to the liquid inlet inside the gas-liquid separation cylinder, and the buffer head is provided with a connecting nozzle communicated with the inner cavity, and a plurality of through holes are provided on the circumference of the buffer head. With such a structural design, the buffer head mainly plays a role in slowing down the inflowing liquor, avoiding the flow rate being too fast to achieve effective gas-liquid separation, and avoiding the liquor from flowing out with the gas. The buffer head can forcibly change the flow direction of the liquor, thereby achieving the effect of slowing down the flow. Specifically, the liquor flows in from the connecting nozzle along the axis, and then flows out from the through holes on the circumference of the buffer head. The through holes are in the radial direction of the buffer head. Therefore, the liquor moving along the axial direction can be forced to change to radial movement, thereby slowing down the flow and ensuring sufficient time for gas-liquid separation.

[0012] It is further defined that the outer ring of the connecting nozzle is provided with threads, and the buffer head is threadedly connected to the gas-liquid separation cylinder. Such a structural design enables the buffer head and the gas-liquid separation cylinder to be disassembled and assembled through threaded connection.

[0013] It is further defined that a second liquid level sensor is installed on the body of the residual wine collection box, the air hole of the residual wine collection box is also connected to an exhaust pipe, and an anti-overflow electric valve is arranged on the pipeline of the exhaust pipe. With such a structural design, when the liquor in the residual wine collection box is not discharged and continues to increase, after the liquid level of the liquor collected in the residual wine collection box reaches the height sensed by the second liquid level sensor, the anti-overflow electric valve is closed to prevent the liquor from overflowing through the exhaust pipe connected to the air hole, and the exhaust pipe is used to discharge the gas in the residual wine collection box. In addition, an alarm mechanism, such as an audible and visual alarm, can also be arranged to work in conjunction with the second liquid level sensor to inform the staff that there is too much liquor in the residual wine collection box, and the staff should promptly perform maintenance and manually discharge the liquor inside.

[0014] It is further defined that both the first liquid level sensor and the second liquid level sensor adopt float switches. With such a structural design, the float switches are simple, reliable and resistant to various environments.

[0015] It is further specified that a siphon-destroying air inlet valve is provided at the outlet of the mass flowmeter. With such a structural design, negative pressure backdraft will occur when transferring liquor from a high position to a low position. At this time, the gas-liquid separation cylinder is emptied of air by the negative pressure, and the gas-liquid separation function will fail. For this reason, a siphon-destroying air inlet valve is provided at the outlet of the mass flowmeter. Once negative pressure appears in the pipeline, the siphon-destroying air inlet valve will automatically open and inlet air instantly, ensuring that the normal working conditions of the gas-liquid separation cylinder remain unchanged, and the gas-liquid separation cylinder can still work normally, thereby ensuring the metering accuracy remains unchanged.

[0016] It is further defined that it includes a shell located at the outermost side for protection and providing an installation position. With such a structural design, the shell is at the outermost side to protect the internal components and provide an installation position.

[0017] Beneficial effects of the utility model:

[0018] 1. It is connected in series to the single pipeline for conveying liquor, and no additional pipeline is required;

[0019] 2. The buffer head in the gas-liquid separation cylinder has a buffering effect on the gas-liquid mixture (air mixed with liquor). The gas-liquid separation cylinder can separate the gas and liquid and discharge the air, ensuring that the air will not enter the mass flow meter, thus achieving accurate measurement;

[0020] 3. The small amount of liquor sprayed out by the exhaust valve can be collected and recycled, which will not cause economic losses;

[0021] 4. It integrates the two functions of exhaust and metering, which realizes both automatic exhaust and precise metering without manual intervention, reduces complexity and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0023] Figure 1 This is a schematic diagram of the external structure of an embodiment of a liquor conveying and metering device based on single-tube exhaust of the utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of an embodiment of a liquor conveying and metering device based on single-tube exhaust of the utility model;

[0025] Figure 3 It is a schematic diagram of the internal structure of a liquor delivery and metering device based on single-tube exhaust in the utility model after removing the flow meter, the siphon-breaking air inlet valve, and the outlet electric valve;

[0026] Figure 4 It is a structural schematic diagram of a buffer head in an embodiment of a liquor conveying and metering device based on single-tube exhaust of the utility model;

[0027] The main component symbols are described as follows:

[0028] 1. Shell;

[0029] 2. Gas-liquid separation cylinder; 201. liquid inlet; 202. liquid outlet; 203. liquid discharge pipe;

[0030] 3. Mass flow meter;

[0031] 4. Siphon damages the intake valve;

[0032] 5. Export electric valve;

[0033] 6. Residual wine collection box;

[0034] 7. Exhaust valve;

[0035] 8. Anti-overflow electric valve;

[0036] 9. Conducting valve;

[0037] 10. The first liquid level sensor;

[0038] 11. Second liquid level sensor;

[0039] 12. Buffer head; 121. Through hole; 122. Connecting nozzle. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0041] like Figure 1-4As shown, a liquor conveying and metering device based on single-tube exhaust of the utility model is arranged on the liquor conveying pipeline, and comprises a gas-liquid separation cylinder 2 and a residual liquor collecting box 6, wherein the gas-liquid separation cylinder 2 is provided with a liquid inlet 201 and a liquid outlet 202;

[0042] The discharge port 202 of the gas-liquid separation cylinder 2 is connected to the mass flow meter 3 through the discharge pipe 203, the outlet electric valve 5 is installed on the pipeline of the discharge pipe 203, and the cylinder body of the gas-liquid separation cylinder 2 is installed with a first liquid level sensor 10;

[0043] The top of the gas-liquid separation cylinder 2 is connected to the residual wine collection box 6 through a first pipeline, an exhaust valve 7 is arranged on the first pipeline between the gas-liquid separation cylinder 2 and the residual wine collection box 6, the bottom of the residual wine collection box 6 is connected to the gas-liquid separation cylinder 2 through a second pipeline, a conduction valve 9 based on air pressure control is arranged on the second pipeline between the gas-liquid separation cylinder 2 and the residual wine collection box 6, when the pressure in the gas-liquid separation cylinder 2 is lower than the pressure in the residual wine collection box 6, the conduction valve 9 is opened, when the pressure in the gas-liquid separation cylinder 2 is higher than the pressure in the residual wine collection box 6, the conduction valve 9 is closed, and an air hole for releasing gas is arranged on the top of the residual wine collection box 6.

[0044] In this embodiment:

[0045] The utility model is a liquor conveying and metering device based on single-tube exhaust, which is located on a single-tube pipeline for conveying liquor. The function of the gas-liquid separation cylinder 2 is to completely separate gas and liquid in the cylinder body. The gas-liquid separation cylinder 2 is placed horizontally, with one end being a liquid inlet 201 for entering liquor, and the bottom of the other end being a liquid discharge port 202. An exhaust valve 7 is arranged on the first pipeline between the gas-liquid separation cylinder 2 and the residual liquor collection box 6, which is used to exhaust the gas in the gas-liquid separation cylinder 2. The liquor separated from the gas flows to the other end of the gas-liquid separation cylinder 2, and finally flows out from the liquid discharge port 202 at the bottom of the gas-liquid separation cylinder, and flows into the mass flow meter 3 through the outlet electric valve 5 for metering.

[0046] When a large amount of gas enters the gas-liquid separation cylinder 2, the exhaust valve 7 does not have time to exhaust all the gas, which will cause gas to be discharged from the discharge port 202 of the gas-liquid separation cylinder 2 and enter the mass flow meter 3, causing measurement accuracy errors. To avoid this phenomenon, a first liquid level sensor 10 for detecting the liquor level is installed on the gas-liquid separation cylinder 2. When the liquid level is lower than the position of the first liquid level sensor 10, the outlet electric valve 5 on the discharge pipe 203 is closed in time. After the gas is exhausted and the liquor level rises, the outlet electric valve 5 is opened again to prevent the gas from entering the mass flow meter 3.

[0047] During the exhaust process of the exhaust valve 7, a small amount of liquor will be sprayed out along with the gas. The utility model provides a residual liquor collection box 6 for collecting the liquor. A conduction valve 9 based on air pressure control is provided on the second pipeline between the gas-liquid separation cylinder 2 and the residual liquor collection box 6. When the self-priming pump is working, the inside of the gas-liquid separation cylinder 2 is in a positive pressure state, and the conduction valve 9 is automatically closed. When the self-priming pump stops working, the inside of the gas-liquid separation cylinder 2 is in a depressurized state, and the conduction valve 9 is automatically opened. The liquor in the residual liquor collection box 6 will automatically flow into the gas-liquid separation 2 to achieve automatic emptying.

[0048] Preferably, the liquid inlet 201 is located in the axial direction of the gas-liquid separation cylinder 2, the liquid outlet 202 is located in the diameter direction of the gas-liquid separation cylinder 2, and the liquid outlet 202 is at the bottom of the gas-liquid separation cylinder 2. With this structural design, the axial liquid inlet is convenient for connection with external pipelines, and the liquid outlet 202 is located at the bottom to ensure that the liquor is completely discharged and avoid residue. In fact, other liquid inlet and outlet structures of the gas-liquid separation cylinder 2 can also be considered according to specific circumstances.

[0049] Preferably, a buffer head 12 is installed at a position corresponding to the liquid inlet 201 inside the gas-liquid separation cylinder 2. The buffer head 12 is provided with a connecting nozzle 122 communicating with the inner cavity. The circumference of the buffer head 12 is provided with a plurality of through holes 121. With such a structural design, the buffer head 12 mainly plays a role in slowing down the inflowing liquor. The buffer head 12 can force the liquor to change its flow direction, thereby achieving the effect of slowing down. Specifically, the liquor flows in from the connecting nozzle 122 along the axis, and then flows out from the through holes 121 on the circumference of the buffer head 12. The through holes 121 are in the radial direction of the buffer head 12. Therefore, the liquor moving along the axial direction can be forced to change to radial movement, thereby slowing down. In fact, other buffer structures can also be considered according to specific circumstances.

[0050] Preferably, the outer ring of the connecting nozzle 122 is provided with threads, and the buffer head 12 is threadedly connected to the gas-liquid separation cylinder 2. Such a structural design realizes the disassembly and assembly of the buffer head 12 and the gas-liquid separation cylinder 2 through the form of threaded connection. In fact, other installation structures of the buffer head 12 can also be considered according to specific circumstances.

[0051] Preferably, the body of the residual wine collection box 6 is installed with a second liquid level sensor 11, and the air hole of the residual wine collection box 6 is also connected to an exhaust pipe, and an anti-overflow electric valve 8 is arranged on the pipeline of the exhaust pipe. With such a structural design, when the liquor in the residual wine collection box 6 is not drained away and continues to increase, and the liquor level collected in the residual wine collection box 6 reaches the height sensed by the second liquid level sensor 11, the anti-overflow electric valve 8 is closed to prevent the liquor from overflowing through the exhaust pipe connected to the air hole. The exhaust pipe is used to discharge the gas in the residual wine collection box 6. In addition, an alarm mechanism, such as an audible and visual alarm, can be arranged to work in conjunction with the second liquid level sensor 11 to inform the staff that there is too much liquor in the residual wine collection box 6, and the staff should promptly perform maintenance and manually drain the liquor inside. In fact, other structural shapes that can prevent the failure of drainage and the rise and overflow of the liquor in the residual wine collection box 6 can also be considered according to specific circumstances.

[0052] Preferably, the first liquid level sensor 10 and the second liquid level sensor 11 are both float switches. With such a structural design, the float switch is simple, reliable and resistant to various environments. In fact, other types of the first liquid level sensor 10 and the second liquid level sensor 11 can also be considered according to specific circumstances.

[0053] Preferably, a siphon-destroying air intake valve 4 is provided at the outlet of the mass flowmeter 3. With such a structural design, when transferring liquor from a high position to a low position, a phenomenon of negative pressure backdraft will occur. At this time, the gas-liquid separation cylinder 2 is evacuated by the negative pressure to allow air to enter, and the gas-liquid separation function will fail. For this reason, a siphon-destroying air intake valve 4 is provided at the outlet of the mass flowmeter. Once negative pressure appears in the pipeline, the siphon-destroying air intake valve 4 automatically opens to allow air to enter, ensuring that the normal working conditions of the gas-liquid separation cylinder 2 remain unchanged, and the gas-liquid separation cylinder 2 can still work normally, ensuring that the metering accuracy remains unchanged. In fact, other structural shapes that prevent negative pressure from destroying normal operation can also be considered according to specific circumstances.

[0054] Preferably, the housing 1 is located at the outermost side for protection and providing an installation position. In this structural design, the housing 1 is at the outermost side to protect the internal components and provide an installation position. In fact, other installation protection structures can also be considered according to specific circumstances.

[0055] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A liquor delivery and metering device based on single-tube exhaust, characterized in that: It is arranged on a pipeline for conveying liquor, and comprises a gas-liquid separation cylinder (2) and a residual liquor collection box (6), wherein the gas-liquid separation cylinder (2) is provided with a liquid inlet (201) and a liquid outlet (202); The liquid discharge port (202) of the gas-liquid separation cylinder (2) is connected to a mass flow meter (3) via a liquid discharge pipe (203), an outlet electric valve (5) is installed on the pipeline of the liquid discharge pipe (203), and a first liquid level sensor (10) is installed on the cylinder body of the gas-liquid separation cylinder (2); The top of the gas-liquid separation cylinder (2) is connected to the residual wine collection box (6) via a first pipeline, an exhaust valve (7) is arranged on the first pipeline between the gas-liquid separation cylinder (2) and the residual wine collection box (6), the bottom of the residual wine collection box (6) and the gas-liquid separation cylinder (2) are connected via a second pipeline, an air pressure-controlled conduction valve (9) is arranged on the second pipeline between the gas-liquid separation cylinder (2) and the residual wine collection box (6), when the pressure in the gas-liquid separation cylinder (2) is lower than the pressure in the residual wine collection box (6), the conduction valve (9) is opened, when the pressure in the gas-liquid separation cylinder (2) is higher than the pressure in the residual wine collection box (6), the conduction valve (9) is closed, and an air hole for releasing gas is arranged on the top of the residual wine collection box (6).

2. According to claim 1, a liquor delivery and metering device based on single-tube exhaust is characterized in that: The liquid inlet (201) is located in the axial direction of the gas-liquid separation cylinder (2), the liquid discharge port (202) is located in the diameter direction of the gas-liquid separation cylinder (2), and the liquid discharge port (202) is located at the bottom of the gas-liquid separation cylinder (2).

3. A liquor delivery and metering device based on single-tube exhaust according to claim 2, characterized in that: A buffer head (12) is installed at a position corresponding to the liquid inlet (201) inside the gas-liquid separation cylinder (2), and the buffer head (12) is provided with a connecting nozzle (122) communicating with the inner cavity, and a plurality of through holes (121) are provided on the circumference of the buffer head (12).

4. The liquor delivery and metering device based on single-tube exhaust according to claim 3 is characterized by: The outer ring of the connecting nozzle (122) is provided with threads, and the buffer head (12) is threadedly connected to the gas-liquid separation cylinder (2).

5. The liquor delivery and metering device based on single-tube exhaust according to claim 1 is characterized in that: A second liquid level sensor (11) is installed on the body of the residual wine collection box (6), and an air hole of the residual wine collection box (6) is connected to an exhaust pipe, and an anti-overflow electric valve (8) is arranged on the pipeline of the exhaust pipe.

6. The liquor delivery and metering device based on single-tube exhaust according to claim 5 is characterized by: The first liquid level sensor (10) and the second liquid level sensor (11) both adopt float switches.

7. The liquor delivery and metering device based on single-tube exhaust according to claim 1 is characterized by: A siphon-breaking air intake valve (4) is arranged at the outlet of the mass flow meter (3).

8. The liquor delivery and metering device based on single-tube exhaust according to claim 1 is characterized by: It comprises a shell (1) located at the outermost side and used for protection and providing an installation position.

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