Two-way automatic pressure-stabilizing water supply system of loosening and dampening machine

Abstract

The utility model belongs to the technical field of tobacco production equipment, and particularly relates to a two-way automatic pressure-stabilizing water supply system of a loosening and dampening machine. Comprising a first water supply loop, a second water supply loop, a three-way electric ball valve, a buffer water tank and a loosening and moisture regaining roller, the first water supply loop and the second water supply loop are respectively provided with a pneumatic angle valve, and outlet ends of the first water supply loop and the second water supply loop are communicated and then connected with a first channel of a three-way electric ball valve; a second channel of the three-way electric ball valve is connected with a water inlet of the buffer water tank through a water inlet pipeline; a third channel of the three-way electric ball valve is connected with a nozzle of the loosening and dampening roller through a first water conveying pipeline; a water conveying opening of the temporary storage water tank is connected with a second water conveying pipeline, and the second water conveying pipeline communicates with the first water conveying pipeline. The double-way water supply pipeline is arranged, water supply sources are switched through the pneumatic angle valve, and when water supply of one way is insufficient, the other way can be switched to achieve emergency water supply.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco production equipment, and in particular relates to a dual-path automatic pressure-stabilizing water supply system of a loosening and rehumidifying machine. Background Art

[0002] The statements in this section merely provide background technical information related to the present invention and do not necessarily constitute prior art.

[0003] The loosening and rehumidifying machine is a special equipment used to loosen and rehumidify the sliced ​​tobacco sheets and thin slices in the tobacco silk production process; the leaves are rotated and conveyed by the loosening and rehumidifying drum to achieve the loosening of the tobacco blocks while increasing the moisture content and temperature of the tobacco sheets, thereby meeting the technological requirements of silk making.

[0004] The loosening and rehumidifying machine uses a water-steam dual-medium nozzle to inject steam to drive the water in the water pipeline to atomize into uniform droplets and spray them onto the surface of the material. The manual ball valve needs to be opened manually before production begins.

[0005] Long-term practical experience shows that long-term use of tap water as process water will cause scaling of the dual-media nozzle due to water quality, resulting in poor atomization effect of the dual-media nozzle, which in turn causes large fluctuations in the water content at the drum outlet and material sticking to the inner wall of the drum. When using pure water alone, a malfunction in the pure water preparation device will lead to insufficient or interrupted water supply capacity, affecting normal production.

[0006] In addition, there is currently no means to detect the water supply capacity of the water supply circuit, and there is no backup circuit when the water supply pressure of the water supply circuit is unstable. Affected by the unstable water source pressure, the problem of large fluctuations in process water flow due to excessive water supply pressure has occurred many times during the production process; moreover, the unstable water supply pressure also seriously affects the atomization effect of the nozzle in the drum and cannot meet the production process requirements. Utility Model Content

[0007] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a dual-channel automatic pressure-stabilizing water supply system for a loose dehumidification machine, aiming to solve the problems of insufficient water supply capacity, inability to automatically switch water sources, lack of means to detect water supply capacity, unstable water supply pressure, etc.

[0008] To achieve the above objectives, one or more embodiments of the present invention provide the following technical solutions:

[0009] The utility model provides a dual-circuit automatic pressure-stabilizing water supply system for a loosening and rehumidifying machine in a first aspect, comprising: a first water supply circuit, a second water supply circuit, a three-way electric ball valve, a buffer water tank and a loosening and rehumidifying drum;

[0010] The first water supply circuit and the second water supply circuit are respectively provided with pneumatic angle valves, and the outlet ends of the first water supply circuit and the second water supply circuit are connected to the first channel of the three-way electric ball valve after being connected;

[0011] The second channel of the three-way electric ball valve is connected to the water inlet of the buffer water tank through the water inlet pipeline, and the third channel of the three-way electric ball valve is connected to the nozzle of the loose rehumidification drum through the first water delivery pipeline;

[0012] The water delivery port of the cache water tank is connected to the second water delivery pipeline, and the second water delivery pipeline is in communication with the first water delivery pipeline.

[0013] Furthermore, the first water supply circuit and the second water supply circuit are respectively provided with pressure sensors.

[0014] Furthermore, the buffer water tank is fixedly arranged below the loose rehumidification drum through a bracket.

[0015] Furthermore, the first water delivery pipeline is provided with an electric contact pressure gauge and an electromagnetic flow meter.

[0016] Furthermore, the second water supply pipeline is provided with a water pump, a manual valve, a barrel pressure reducing valve and a third pressure sensor.

[0017] Furthermore, an overflow port is provided on one side of the upper end of the cache water tank, and the overflow port is connected to an overflow pipe.

[0018] Furthermore, a drain outlet is provided at the bottom of the cache water tank, and the drain outlet is connected to a drainage pipeline.

[0019] Furthermore, a removable cover is provided on the top of the cache water tank.

[0020] Furthermore, the detachable cover is provided with a handle.

[0021] Furthermore, a liquid level detection switch is provided inside the cache water tank.

[0022] One or more of the above technical solutions have the following beneficial effects:

[0023] (1) The utility model can provide two water sources for the loose dehumidification machine by setting up a dual-circuit water supply pipeline. The water supply source is switched by a pneumatic angle valve, so that when one water supply is insufficient, it can be switched to the other to achieve emergency water supply. At the same time, by designing a set of water supply buffer tanks after the water supply pipeline is merged, the water supply pressure can be effectively guaranteed to be stable, which solves the problem of no backup circuit when the water supply pressure of the existing water supply circuit is unstable.

[0024] (2) The two water supply circuits in the utility model are respectively a tap water supply circuit and a purified water supply circuit. After the water source flows into the supply pipeline, the water supply path is divided into a first water supply circuit that directly passes through the loose rehumidification drum and a second water supply circuit that is stored in a buffer water tank and then transported to the loose rehumidification drum through a three-way pneumatic ball valve. This can avoid unstable water supply pressure or the buffer water tank being abnormal and unable to work, and ensure the stability of the water supply source of the loose rehumidification drum.

[0025] (3) The utility model connects an overflow pipe to the upper part of the cache water tank, and the overflow pipe discharges excess water in the water tank into the ditch, thereby avoiding the potential danger of uncontrollable liquid level in the cache water tank due to abnormal conditions.

[0026] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0028] Figure 1 This is a structural diagram of a dual-path automatic pressure-stabilizing water supply system of a loose moisture regaining machine of Example 1.

[0029] In the figure, 1. the first water supply circuit, 2. the second water supply circuit, 3. the first pneumatic angle valve, 4. the second pneumatic angle valve, 5. the first pressure sensor, 6. the second pressure sensor, 7. the three-way electric ball valve, 8. the water inlet pipeline, 9. the first water delivery pipeline, 10. the loose rehumidification roller, 11. the second water delivery pipeline, 12. the dual-medium nozzle, 13. the manual valve, 14. the barrel pressure reducing valve, 15. the third pressure sensor, 16. the electric contact pressure gauge, 17. the electromagnetic flow meter, 18. the bracket, 19. the process water pump, 20. the low liquid level detection switch, 21. the high liquid level detection switch, 22. the overflow valve, 23. the overflow pipeline, 24. the drainage pipeline, 25. the drainage ball valve, 26. the removable cover plate, 27. the handle. DETAILED DESCRIPTION

[0030] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0031] Embodiment 1

[0032] like Figure 1 As shown, the utility model proposes a dual-circuit automatic pressure-stabilizing water supply system for a loosening and rehumidifying machine, comprising: a first water supply circuit 1, a second water supply circuit 2, a three-way electric ball valve 7, a buffer water tank 9 and a loosening and rehumidifying drum 10;

[0033] The first water supply circuit 1 and the second water supply circuit 2 are respectively provided with pneumatic angle valves. The outlet ends of the first water supply circuit 1 and the second water supply circuit 2 are connected through a water supply pipeline and then connected to the first channel of the three-way electric ball valve 7; the second channel of the three-way electric ball valve 7 is connected to the water inlet of the buffer water tank 9 through a water inlet pipeline 8, and the third channel of the three-way electric ball valve 7 is connected to the nozzle of the loose rehumidification drum 10 through a first water delivery pipeline 11;

[0034] The water delivery port of the cache water tank 9 is connected to the second water delivery pipeline 12 , and the second water delivery pipeline 12 is in communication with the first water delivery pipeline 11 .

[0035] The utility model can provide two water sources, namely, tap water and purified water, for the loosening and rehumidifying machine by arranging a double-channel water supply pipeline, and the water supply source is switched by controlling the pneumatic angle valve on the water supply pipeline.

[0036] The utility model provides a buffer water tank so that there are two water supply paths between the three-way ball valve and the loosening and rehumidification drum. The first water supply path is a first water supply pipeline that directly connects the three-way ball valve to the nozzle in the loosening and rehumidification drum, and the second water supply pipeline is an indirect water supply path through the buffer water tank. The purpose of providing the dual water supply paths is to ensure the stability of the water supply source of the loosening and rehumidification drum and meet the production process requirements.

[0037] As a further technical solution, the first water supply circuit 1 is a tap water pipeline, the second water supply circuit 2 is a pure water pipeline, and the first water supply circuit 1 is provided with a first pneumatic angle valve 3 and a first pressure sensor 5 in sequence along the direction from its inlet to its outlet; the second water supply circuit 2 is provided with a second pneumatic angle valve 4 and a second pressure sensor 6 in sequence along the direction from its inlet to its outlet;

[0038] In the utility model, the water source of the loose dehumidification machine is preferably supplied with purified water, and tap water is supplied as a backup water source; the tap water and purified water are introduced into the water supply pipeline through the pneumatic angle valve and then enter the first channel of the three-way ball valve. The pneumatic angle valve has the function of in-position detection, and a set of pressure sensors for detecting the water supply pressure are installed before the tap water and purified water pass through the pneumatic angle valve to detect the water pressure of the water supply circuit. It should be noted that the pneumatic angle valve, the three-way electric ball valve, and the pressure sensor are all connected to the control module, and the control module is used to receive the monitoring data of the sensor and send control signals to control the actions of each module.

[0039] As a further technical solution, the spray nozzle of the loose rehumidification drum can use a dual-media nozzle. The dual-media nozzle is a commonly used spray nozzle that uses two different media of pressure fluid to mix and spray, thereby producing uniform and fine atomized particles.

[0040] As a further technical solution, the buffer water tank 9 is fixedly arranged on the ground below the loose rehumidification drum 10 by a bracket 18, and the bracket 18 is an L-shaped bracket.

[0041] In this example, the cache water tank 9 is installed on the ground below the loose rehumidification drum, and the cache water tank 9 is fixed to the ground by two sets of L-shaped brackets 18; the installation position of the cache water tank 9 can be selected according to the site location.

[0042] As a further technical solution, an overflow port is provided at the upper end of the side of the cache water tank 9, and the overflow port is connected to the overflow pipe 23, and an overflow valve 22 is provided on the overflow pipe 23. A drain port is provided at the bottom of the cache water tank 9, and the drain port is connected to the drain pipe 24, and a drain ball valve 25 is provided on the drain pipe 24.

[0043] In this embodiment, a set of overflow valves 22 are connected to the overflow pipe 23 just above the overflow end of the cache water tank 9 10 m in front of the overflow port. The overflow valves 22 discharge excess water in the cache water tank 9 into the ditch through the overflow pipe 23 .

[0044] According to the needs of equipment maintenance and servicing, a drainage pipe 24 is connected to the bottom of the cache water tank 9, and a set of drainage ball valves 25 are installed on the drainage pipe 24 to directly discharge the water stored in the cache water tank 9. The drainage pipe 24 converges with the overflow pipe 23 to drain the water into the ditch.

[0045] As a further technical solution, the water inlet of the cache water tank 9 for connecting to the second water supply pipeline 12 and the overflow port for connecting to the overflow pipeline 23 are arranged on one side of the water tank, and the water inlet is arranged on the low side, and the overflow port is arranged on the high side; the water inlet of the cache water tank 9 for connecting to the water inlet pipeline 8 is arranged on the other side thereof, and the water inlet is arranged on the high side.

[0046] The water source enters the cache water tank 9 through the water inlet pipeline 8, and the process water inside the cache water tank 9 is transported through the water delivery port along the second water delivery pipeline 12 to the nozzle connected to the end of the first water delivery pipeline 11.

[0047] The first water delivery pipeline 11 is provided with an electric contact pressure gauge 16 and an electromagnetic flow meter 17; the electric contact pressure gauge 16 and the electromagnetic flow meter 17 are sequentially arranged along the direction from the connecting point of the first water delivery pipeline 11 and the second water delivery pipeline 12 to the nozzle;

[0048] The second water delivery pipeline 12 is provided with a manual valve 13, a barrel pressure reducing valve 14, and a pressure sensor 15 in sequence. The manual valve 13, the barrel pressure reducing valve 14, and the third pressure sensor 15 are arranged in sequence along the water delivery end of the cache water tank 9 to the end of the second water delivery pipeline 12;

[0049] In this embodiment, the materials of the water inlet pipe and the water outlet pipe can be selected according to the on-site environment, for example, stainless steel can be used; the detection and execution devices such as the manual valve 13, the barrel pressure reducing valve 14, the third pressure sensor 15, the electric contact pressure gauge 16, and the electromagnetic flow meter 17 can select different detection and execution devices according to the process and equipment requirements, and the selected detection and execution devices are all connected to the control module, and the actions of each device are controlled by the control module.

[0050] As a further technical solution, a process water pump 19 is installed at the water inlet of the cache water tank 9. The process water pump 19 is connected to the control module. The process water pump 19 is used to power the second water supply pipeline 12. According to the production process index requirements of this embodiment, a process water pump with a power of 0.37kw is selected.

[0051] Furthermore, a detachable cover plate 26 is provided on the top of the cache water tank 9 , and a handle 27 is provided on the detachable cover plate 26 .

[0052] In this embodiment, the buffer water tank 9 is designed as a rectangular stainless steel structure according to the on-site requirements, with a capacity of 100m 3 The water source for the cache water tank is supplied by the workshop pure water system and municipal tap water. Other supply sources can be selected according to different application scenarios.

[0053] At the same time, in order to facilitate the maintenance and care of the inside of the cache water tank 9, a removable cover 26 is installed on the top of the cache water tank, and two sets of hard plastic handles 27 are installed on the removable cover 26. The handles 27 are provided to facilitate the installation and removal of the removable cover 26.

[0054] Furthermore, a liquid level detection switch is provided inside the cache water tank 9 , and the liquid level detection switch includes a low liquid level detection switch 20 and a high liquid level detection switch 21 .

[0055] In this embodiment, a set of low liquid level detection switch 20 and a high liquid level detection switch 21 are installed at the outer end of the cache water tank 9 at a distance of 200 mm and 600 mm from the lower end of the water tank; the liquid level detection switch selects a liquid level tuning fork detection switch, and two or more groups of liquid level detection switches can be set according to the capacity and structure of the cache water tank 9; the liquid level detection switch is connected to the control module, and the liquid level signal in the cache water tank is detected by setting the liquid level detection switch.

[0056] Although the above describes the specific implementation methods of the utility model in combination with the accompanying drawings, it is not intended to limit the scope of protection of the utility model. Technical personnel in the relevant field should understand that on the basis of the technical solution of the utility model, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the utility model.

Claims

1. A dual-circuit automatic pressure-stabilizing water supply system for a loose moisture recovery machine, characterized in that: include: The first water supply circuit, the second water supply circuit, the three-way electric ball valve, the buffer water tank and the loose rehumidification drum; The first water supply circuit and the second water supply circuit are respectively provided with pneumatic angle valves, and the outlet ends of the first water supply circuit and the second water supply circuit are connected to the first channel of the three-way electric ball valve after being connected; The second channel of the three-way electric ball valve is connected to the water inlet of the buffer water tank through the water inlet pipeline, and the third channel of the three-way electric ball valve is connected to the nozzle of the loose rehumidification drum through the first water delivery pipeline; The water delivery port of the cache water tank is connected to the second water delivery pipeline, and the second water delivery pipeline is in communication with the first water delivery pipeline.

2. The dual-channel automatic pressure-stabilizing water supply system of a loose moisture recovery machine according to claim 1 is characterized in that: The first water supply circuit and the second water supply circuit are respectively provided with pressure sensors.

3. The dual-circuit automatic pressure-stabilizing water supply system of a loose moisture recovery machine according to claim 1 is characterized in that: The buffer water tank is fixedly arranged below the loose rehumidification drum through a bracket.

4. The dual-channel automatic pressure-stabilizing water supply system of a loose moisture recovery machine according to claim 1 is characterized in that: The first water delivery pipeline is provided with an electric contact pressure gauge and an electromagnetic flow meter.

5. The dual-circuit automatic pressure-stabilizing water supply system of a loose moisture recovery machine according to claim 1 is characterized in that: The second water delivery pipeline is provided with a water pump, a manual valve, a barrel pressure reducing valve and a third pressure sensor.

6. The dual-circuit automatic pressure-stabilizing water supply system of a loose moisture recovery machine according to claim 1 is characterized in that: An overflow port is provided on one side of the upper end of the cache water tank, and the overflow port is connected to an overflow pipe.

7. The dual-circuit automatic pressure-stabilizing water supply system of a loose moisture recovery machine according to claim 1 is characterized in that: A drain outlet is provided at the bottom of the cache water tank, and the drain outlet is connected to a drain pipeline.

8. The dual-circuit automatic pressure-stabilizing water supply system of a loose moisture recovery machine according to claim 1 is characterized in that: A detachable cover is provided on the top of the cache water tank.

9. A dual-channel automatic pressure-stabilizing water supply system for a loose moisture recovery machine according to claim 8, characterized in that: The detachable cover is provided with a handle.

10. The dual-channel automatic pressure-stabilizing water supply system of a loose moisture recovery machine according to claim 1, characterized in that: A liquid level detection switch is arranged inside the cache water tank.

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