Vacuum moisture regaining cooling water tank for cigarettes

Abstract

The utility model discloses a vacuum moisture regaining cooling water tank for cigarettes. The vacuum moisture regaining cooling water tank is characterized in that a cooling pipeline is arranged in the cooling water tank; the inlet end of the cooling pipeline is connected with one end of the gaseous carbon dioxide transmission pipeline; an electromagnetic valve is arranged on the carbon dioxide transmission pipeline; the other end of the carbon dioxide transmission pipeline is connected with a tank body of the carbon dioxide gas tank; the outlet end of the cooling pipeline is connected with the inlet of the high-pressure compressor; an outlet of the high-pressure compressor is connected with the carbon dioxide gas tank; a water inlet pipe is arranged above the tank body of the cooling water tank; a blow-off pipe and a water outlet pipe are arranged below the cooling water tank body; and the electromagnetic valve is electrically connected with the PLC. According to the technical content disclosed by the utility model, the functions are practical, the cooling effect is good, circulating cooling water in the cooling water tank can be rapidly cooled, the temperature of the circulating cooling water can be reduced in real time when the vacuum moisture regain system is vacuumized, the vacuum degree and the back penetration rate in the vacuum moisture regain tank body are improved, and the industrial application value and the popularization and practical value are better.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette making equipment, and more specifically to a vacuum rehumidification cooling water tank for cigarettes. Background Art

[0002] During the tobacco shred production process, a vacuum rehumidifier is a crucial piece of equipment. Its function is to moderately increase the temperature and moisture content of tobacco leaves, remove green and odorous odors, loosen tobacco blocks and leaves, and kill insect eggs. The operating principle is to use steam through a venturi vacuum pump to evacuate the pressure inside the rehumidifier to 0.95 kPa. The steam then carries atomized water into the vacuum chamber. The atomized water quickly penetrates the tobacco blocks, interacting with the leaves through mass and heat transfer, transferring moisture and heat to the leaves and facilitating their uniform and efficient absorption of moisture. During the rehumidifier's evacuation process, the steam used is relatively high in temperature, requiring cooling water to cool and condense the high-temperature steam in a condenser. The cooling water temperature generally does not exceed 32°C. If the cooling water temperature is too high, the rate at which steam condenses into water in the condenser will slow down, preventing the steam from circulating quickly. This will result in insufficient vacuum during the evacuation process within the rehumidification machine housing, failing to meet the process requirement of 0.95 kPa. The moisture content of the tobacco leaves within the housing will be uneven, or the tobacco leaves will clump and not loosen, failing to achieve the purpose of loosening the tobacco leaves and removing impurities and odors, affecting the sensory quality and hindering the production of the next process. Currently, the cooling water tanks of existing vacuum rehumidification equipment for tobacco are generally located above the production plant. The cooling methods are typically natural cooling and mechanical cooling, i.e., cooling the water within the housing through external natural wind and cooling fans. This results in slow cooling and poor results. Especially in summer, when the outside temperature often reaches above 32°C, it is difficult to reduce the water temperature below the equipment requirements through natural wind and cooling fans. This results in poor evacuation, low tobacco leaf reperfusion, and tobacco leaf clumping, which affects the sensory quality of tobacco products.

[0003] Therefore, how to provide a vacuum rehumidification cooling water tank for cigarettes has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] The purpose of the utility model is to provide a vacuum rehumidification cooling water tank for cigarettes.

[0005] The utility model provides a vacuum rehumidification cooling water tank for cigarettes, comprising a water inlet pipe, a cooling water tank, a cooling pipeline, a gaseous carbon dioxide transmission pipeline, a solenoid valve, a carbon dioxide gas tank and a high-pressure compressor;

[0006] The cooling pipe is provided inside the cooling water tank; the inlet end of the cooling pipe is connected to one end of the gaseous carbon dioxide transmission pipe; the solenoid valve is provided on the gaseous carbon dioxide transmission pipe; the other end of the gaseous carbon dioxide transmission pipe is connected to the tank body of the carbon dioxide gas tank; the outlet end of the cooling pipe is connected to the inlet of the high-pressure compressor; the outlet of the high-pressure compressor is connected to the carbon dioxide gas tank; a water inlet pipe is provided above the cooling water tank body; a sewage pipe and a water outlet pipe are provided below the cooling water tank body; the solenoid valve is electrically connected to the PLC controller.

[0007] Optionally, the vacuum rehumidification cooling water tank further comprises: a pressure gauge;

[0008] The pressure gauge is installed on the gaseous carbon dioxide transmission pipeline;

[0009] The pressure gauge is electrically connected to the PLC controller.

[0010] Optionally, the vacuum rehumidification cooling water tank further comprises: a first manual stop valve;

[0011] The first manual stop valve and the solenoid valve are installed in parallel on the gaseous carbon dioxide transmission pipeline.

[0012] Optionally, the vacuum rehumidification cooling water tank further comprises: a safety valve;

[0013] The safety valve is installed above the carbon dioxide gas tank.

[0014] Optionally, the vacuum rehumidification cooling water tank further comprises: a second manual stop valve;

[0015] The second manual stop valve is installed on the sewage pipe.

[0016] Optionally, the vacuum rehumidification cooling water tank further comprises: an ambient temperature sensor;

[0017] The ambient temperature sensor is installed on one side of the cooling water tank body;

[0018] The ambient temperature sensor is electrically connected to the PLC controller.

[0019] Optionally, the vacuum rehumidification cooling water tank further comprises: a water temperature sensor;

[0020] The water temperature sensor is installed on one side of the cooling water tank body;

[0021] The water temperature sensor is electrically connected to the PLC controller.

[0022] According to the technical content disclosed in the present utility model, the following beneficial effects are achieved: the ambient temperature sensor provided on the water tank body detects the external ambient temperature in real time. When the external ambient temperature is detected to be higher than the process requirement of 32°C, the ambient temperature sensor transmits a signal to the PLC controller. The PLC controller transmits an opening signal to the solenoid valve on the carbon dioxide transmission pipeline. The solenoid valve opens and begins to transmit low-temperature gaseous carbon dioxide to the cooling pipe in the water tank. Heat exchange is carried out with water through the cooling pipe, thereby achieving the purpose of rapid cooling and temperature reduction to meet the water temperature requirements of the vacuum rehumidification evacuation system. The present utility model is practical and has a good cooling effect. It can quickly cool the circulating cooling water in the cooling water tank, and can reduce the temperature of the circulating cooling water in the vacuum rehumidification system in real time when evacuating. It can improve the vacuum degree and repermeability in the vacuum rehumidification box. It has good industrial application value and popularization and practical value.

[0023] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0025] Figure 1 The figure is a schematic diagram of a vacuum rehumidification cooling water tank for cigarettes provided according to an embodiment.

[0026] Explanation of the accompanying symbols: 1. Water inlet pipe; 2. Ambient temperature sensor; 3. Cooling water tank; 4. Cooling pipe; 5. Pressure gauge; 6. Gaseous carbon dioxide transmission pipe; 7. Solenoid valve; 8. Safety valve; 9. Carbon dioxide tank; 10. High-pressure compressor; 11. First manual stop valve; 12. Water outlet pipe; 13. Second manual stop valve; 14. Water temperature sensor; 15. Cooling pipe inlet end; 16. Cooling pipe outlet end; 17. Sewage pipe. DETAILED DESCRIPTION

[0027] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention.

[0028] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0029] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0030] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0031] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0032] like Figure 1 As shown, a vacuum rehumidification cooling water tank for cigarettes is provided, comprising:

[0033] Water inlet pipe 1, cooling water tank 3, cooling pipe 4, gaseous carbon dioxide transmission pipe 6, solenoid valve 7, carbon dioxide gas tank 9 and high-pressure compressor 10;

[0034] The cooling water tank 3 is provided with the cooling pipe 4, and the cooling medium in the cooling pipe 4 is low-temperature gaseous carbon dioxide, which enables the low-temperature cooling pipe 4 to quickly exchange heat with water to achieve the purpose of rapid cooling; the cooling pipe inlet end 15 is connected to one end of the gaseous carbon dioxide transmission pipe 6, and the gaseous carbon dioxide transmission pipe 6 is wrapped with a thermal insulation layer to prevent people from accidentally touching it and getting frostbite; the carbon dioxide transmission pipe 6 is provided with the solenoid valve 7; the other end of the gaseous carbon dioxide transmission pipe 6 is connected to the tank body of the carbon dioxide gas tank 9, and the gaseous carbon dioxide in the carbon dioxide gas tank 9 is transported to the cooling pipe 4 through the transmission pipe; the cooling pipe outlet end 16 is connected to the inlet of the high-pressure compressor 10, which can allow the gaseous carbon dioxide to pass through the high-pressure compressor 10. The high-pressure compressor condenses the carbon dioxide into liquid carbon dioxide; the outlet of the high-pressure compressor 10 is connected to the carbon dioxide gas tank 9, and the condensed liquid carbon dioxide is transported to the tank body of the carbon dioxide gas tank 9; a water inlet pipe 1 is provided above the body of the cooling water tank 3, and the cooling water in the vacuum rehumidification water circulation system is pumped into the cooling water tank 3 through a circulating pump; a sewage pipe 17 and a water outlet pipe 12 are provided below the body of the cooling water tank 3; the water outlet pipe 12 is connected to the vacuum rehumidification circulating water system and can directly enter the vacuum rehumidification circulating water tank to cool the high-temperature steam used for vacuuming, so that the high-temperature steam can be condensed quickly and the pressure in the vacuum rehumidification condenser system can be reduced; the solenoid valve 7 is electrically connected to the PLC controller, and the PLC controller controls the opening and closing of the carbon dioxide transmission.

[0035] In some embodiments, the cooling pipe 4 can be set up in multiple rows and connected in parallel according to actual production needs, so as to expand the contact area between the cooling pipe 4 and the water in the cooling water tank 3 as much as possible, so that the gaseous carbon dioxide fills the interior of the cooling pipe 4, and the connection between the inlet and outlet ends and the cooling pipe 4 box body is sealed to prevent water leakage.

[0036] The vacuum rehumidification cooling water tank further includes: a pressure gauge 5;

[0037] The pressure gauge 5 is installed on the gaseous carbon dioxide transmission pipeline 6, and the pressure gauge 5 is electrically connected to the PLC controller. The pressure gauge 5 can monitor the carbon dioxide transmission pressure in real time.

[0038] The vacuum rehumidification cooling water tank further includes: a first manual stop valve 11;

[0039] The first manual stop valve 11 is installed in parallel with the solenoid valve 7 on the gaseous carbon dioxide transmission pipeline 6. When the solenoid valve 7 fails, the opening and closing of carbon dioxide can be controlled by the first manual stop valve 11.

[0040] The vacuum rehumidification cooling water tank further comprises: a safety valve 8;

[0041] The safety valve 8 is installed above the carbon dioxide gas tank 9 to balance the pressure in the gas tank to prevent overpressure alarm or explosion risk.

[0042] The vacuum rehumidification cooling water tank further includes: a second manual stop valve 13;

[0043] The second manual stop valve 13 is installed on the sewage pipe 17 and can be used to discharge sewage or water when the water tank needs to be maintained.

[0044] The vacuum rehumidification cooling water tank further includes: an ambient temperature sensor 2;

[0045] The ambient temperature sensor 2 is installed on one side of the cooling water tank 3;

[0046] The ambient temperature sensor 2 is electrically connected to the PLC controller.

[0047] The vacuum rehumidification cooling water tank further includes: a water temperature sensor 14;

[0048] The water temperature sensor 14 is installed on one side of the cooling water tank 3;

[0049] The water temperature sensor 14 is electrically connected to the PLC controller.

[0050] Specific working principle:

[0051] Ambient temperature sensor 2 first monitors the ambient temperature in real time. When the ambient temperature rises above the cooling water temperature by more than 32°C, sensor 2 transmits a signal to the PLC controller via a circuit. The PLC controller then controls the solenoid valve 7 on the gaseous carbon dioxide transmission pipeline 6 to open, causing the gaseous carbon dioxide to begin to be transmitted to the cooling pipeline 4 within the cooling water tank 3. The continuous flow of low-temperature gaseous carbon dioxide within the cooling pipeline 4 rapidly reduces the surface temperature of the cooling pipeline 4. At the same time, because the cooling water within the cooling water tank 3 is circulating water, the surface of the cooling pipeline 4 comes into contact with the circulating cooling water at low temperatures, rapidly cooling the cooling water to below the production process requirement of 32°C. When a water temperature sensor 14, located on one side of the cooling water tank 3 and in direct contact with the cooling water within the tank, detects that the cooling water temperature has fallen below the process requirement, it transmits a signal to the PLC controller, which in turn transmits a signal to the solenoid valve 7 on the gaseous carbon dioxide transmission pipeline 6. This valve 7 then activates, shutting off the transmission of gaseous carbon dioxide. At the same time, the gaseous carbon dioxide can be condensed into liquid carbon dioxide through high-pressure compression by the high-pressure compressor 10, and then transported to the carbon dioxide gas tank 9, thereby realizing the recycling of carbon dioxide.

[0052] In summary, the technical content disclosed by the present utility model is to detect the external environmental temperature in real time through an environmental temperature sensor provided on the water tank body. When the external environmental temperature is detected to be higher than the process requirement of 32°C, the environmental temperature sensor transmits a signal to the PLC controller, and the PLC controller transmits an opening signal to the solenoid valve on the carbon dioxide transmission pipeline. The solenoid valve opens and begins to transmit low-temperature gaseous carbon dioxide to the cooling pipe in the water tank, and heat is exchanged with water through the cooling pipe, thereby achieving the purpose of rapid cooling and temperature reduction to meet the water temperature requirement of the vacuum rehumidification evacuation system. The present utility model is practical and has a good cooling effect. It can quickly cool the circulating cooling water in the cooling water tank, and can reduce the temperature of the circulating cooling water in the vacuum rehumidification system in real time when evacuating, thereby improving the vacuum degree and repermeability in the vacuum rehumidification box. It has good industrial application value and popularization and practical value.

[0053] Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art will appreciate that the above examples are for illustration only and are not intended to limit the scope of the present invention. Those skilled in the art will appreciate that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A vacuum rehumidification cooling water tank for cigarettes, characterized in that: include: Water inlet pipe, cooling water tank, cooling pipe, gaseous carbon dioxide transmission pipe, solenoid valve, carbon dioxide gas tank and high-pressure compressor; The cooling pipe is provided inside the cooling water tank; the inlet end of the cooling pipe is connected to one end of the gaseous carbon dioxide transmission pipe; the solenoid valve is provided on the gaseous carbon dioxide transmission pipe; the other end of the gaseous carbon dioxide transmission pipe is connected to the tank body of the carbon dioxide gas tank; the outlet end of the cooling pipe is connected to the inlet of the high-pressure compressor; the outlet of the high-pressure compressor is connected to the carbon dioxide gas tank; a water inlet pipe is provided above the cooling water tank body; a sewage pipe and a water outlet pipe are provided below the cooling water tank body; the solenoid valve is electrically connected to the PLC controller.

2. The vacuum rehumidification cooling water tank for cigarettes according to claim 1, characterized in that: The vacuum rehumidification cooling water tank further comprises: a pressure gauge; The pressure gauge is installed on the gaseous carbon dioxide transmission pipeline; The pressure gauge is electrically connected to the PLC controller.

3. The vacuum rehumidification cooling water tank for cigarettes according to claim 2, characterized in that: The vacuum rehumidification cooling water tank further includes: a first manual stop valve; The first manual stop valve and the solenoid valve are installed in parallel on the gaseous carbon dioxide transmission pipeline.

4. The vacuum rehumidification cooling water tank for cigarettes according to claim 3, characterized in that: The vacuum rehumidification cooling water tank further includes: a safety valve; The safety valve is installed above the carbon dioxide gas tank.

5. The vacuum rehumidification cooling water tank for cigarettes according to claim 4, characterized in that: The vacuum rehumidification cooling water tank further comprises: a second manual stop valve; The second manual stop valve is installed on the sewage pipe.

6. The vacuum rehumidification cooling water tank for cigarettes according to claim 5, characterized in that: The vacuum rehumidification cooling water tank further includes: an ambient temperature sensor; The ambient temperature sensor is installed on one side of the cooling water tank body; The ambient temperature sensor is electrically connected to the PLC controller.

7. The vacuum rehumidification cooling water tank for cigarettes according to claim 6, characterized in that: The vacuum rehumidification cooling water tank further includes: a water temperature sensor; The water temperature sensor is installed on one side of the cooling water tank body; The water temperature sensor is electrically connected to the PLC controller.

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