Double-medium nozzle testing device

Abstract

The utility model discloses a double-medium nozzle testing device, two inlets of a double-medium nozzle are respectively connected with a liquid inlet pipe and an injection pipe, the injection pipe is connected with an injection compressed air supply pipeline or an injection steam supply pipeline through an injection detection module, and the injection detection module comprises a compressed air detection pipeline and a steam detection pipeline which are connected in parallel. The inlet end of the compressed air detection pipeline and the inlet end of the steam detection pipeline are connected with the two outlet ends of a three-way valve correspondingly, and the inlet end of the three-way valve is detachably connected with any one of the injection compressed air supply pipeline and the injection steam supply pipeline through a first quick release structure. The outlet end of the compressed air detection pipeline and the outlet end of the steam detection pipeline are connected with the two inlet ends of the three-way pipe correspondingly, and the outlet end of the three-way pipe is detachably connected with the injection pipe through a second quick release structure. The device has the advantage that the atomization effect of the atomized liquid sprayed by the double-medium nozzle is detected and adjusted in an offline state.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco cut filler feeding equipment technical field, especially, is a kind of double medium nozzle testing device. BACKGROUND

[0002] In cigarette production, leaf feeding is one of the most important processes in cut tobacco processing technology, and double medium nozzles are used during leaf feeding. During the process of adding liquid to leaves by double medium nozzles, steam or compressed air is used to inject and atomize the liquid, so that the liquid sprayed by the double medium nozzles is in mist form. However, in actual production process, due to the improper setting of the injection steam or compressed air pressure, it may cause insufficient or excessive atomization of the liquid. Insufficient atomization of the liquid may cause uneven leaf feeding and yellow spot tobacco sheets, while excessive atomization of the liquid may cause some atomized liquid to be taken away by the moisture removal system, resulting in insufficient leaf feeding. The equipment currently used for leaf feeding is a drum feeder. When the equipment is working, the inside of the drum is closed, and the atomization of the liquid inside the drum cannot be observed, so when the atomization effect is not good, the atomization effect cannot be adjusted accordingly. SUMMARY

[0003] The utility model aims at overcoming the shortcomings of the prior art, and provides a double medium nozzle testing device to detect and adjust the atomization effect of the atomized liquid sprayed by the double medium nozzle in offline state, and ensure the atomization effect in actual working process.

[0004] The utility model is implemented by the following technical solutions:

[0005] A double medium nozzle testing device, two inlets of the double medium nozzle are connected to a liquid inlet pipe and an injection pipe respectively, the injection pipe is connected to an injection medium supply pipeline through an injection detection module, the injection detection module includes a compressed air detection pipeline and a steam detection pipeline connected in parallel, an air filter, a first pressure reducing valve, a first pressure gauge and a first check valve are sequentially arranged on the compressed air detection pipeline along the air inlet direction, a steam filter, a second pressure reducing valve, a second pressure gauge and a second check valve are sequentially arranged on the steam detection pipeline along the steam inlet direction, the inlet ends of the compressed air detection pipeline and the steam detection pipeline are connected to two outlet ends of a three-way valve respectively, the injection medium supply pipeline includes an injection compressed air supply pipeline and an injection steam supply pipeline, the inlet end of the three-way valve is detachably connected to any one of the injection compressed air supply pipeline and the injection steam supply pipeline through a first quick release structure, the outlet ends of the compressed air detection pipeline and the steam detection pipeline are connected to two inlet ends of a three-way pipe respectively, and the outlet end of the three-way pipe is detachably connected to the injection pipe through a second quick release structure.

[0006] As a preferred scheme of the double medium nozzle testing device, the liquid inlet pipe is connected with the liquid supply pipe through a liquid detection pipe, two ends of the liquid detection pipe are detachably connected with the liquid supply pipe and the liquid inlet pipe through third quick release structures, and a third one-way valve is arranged on the liquid detection pipe.

[0007] As a preferred scheme of the double medium nozzle testing device, a first stop valve is further arranged on the compressed air detection pipe, and the first stop valve is located upstream of the air filter.

[0008] As a preferred scheme of the double medium nozzle testing device, a second stop valve is further arranged on the steam detection pipe, and the second stop valve is located upstream of the steam filter.

[0009] As a preferred scheme of the double medium nozzle testing device, a third stop valve is further arranged on the liquid detection pipe, and the third stop valve is located upstream of the third one-way valve.

[0010] As a preferred scheme of the double medium nozzle testing device, each quick release structure comprises a flexible hose and quick connectors arranged at two ends of the flexible hose, and the quick connectors are used to connect corresponding two pipe sections.

[0011] As a preferred scheme of the double medium nozzle testing device, a first supply stop valve is arranged on the ejecting compressed air supply pipe, and a second supply stop valve is arranged on the ejecting steam supply pipe.

[0012] As a preferred scheme of the double medium nozzle testing device, a third supply stop valve is arranged on the liquid supply pipe.

[0013] Compared with the prior art, the double medium nozzle testing device has the following advantages:

[0014] The double medium nozzle testing device provided by the utility model realizes offline testing and adjustment of the ejecting pressure, can observe the atomization condition during the adjustment process, guarantees the accuracy of the adjustment result, and thus guarantees the liquid atomization effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic view of the utility model.

[0016] The figure label: 1 double medium nozzle; 2 liquid inlet pipe; 3 injection pipe; 4 injection detection module; 5 compressed air detection pipeline; 6 steam detection pipeline; 7 first stop valve; 8 air filter; 9 first pressure reducing valve; 10 first pressure gauge; 11 first check valve; 12 second stop valve; 13 steam filter; 14 second pressure reducing valve; 15 second pressure gauge; 16 second check valve; 17 three-way valve; 18 injection compressed air supply pipeline; 19 injection steam supply pipeline; 20 first quick release structure; 21 second quick release structure; 22 liquid detection pipeline; 23 liquid supply pipe; 24 third quick release structure; 25 third check valve; 26 third stop valve; 27 first supply stop valve; 28 second supply stop valve; 29 third supply stop valve; 30 flexible hose; 31 quick connector; 32 three-way pipe. DETAILED DESCRIPTION

[0017] The embodiments of the utility model are described in detail below, and the embodiments are implemented on the premise of the technical scheme of the utility model, and detailed implementation modes and specific operation processes are given, but the protection scope of the utility model is not limited to the following embodiments.

[0018] Reference Figure 1 The embodiments disclose a double medium nozzle 1 testing device, two inlets of the double medium nozzle 1 are connected with the liquid inlet pipe 2 and the injection pipe 3 respectively, the injection pipe 3 is connected with the injection medium supply pipeline through the injection detection module 4, the injection detection module 4 includes the compressed air detection pipeline 5 and the steam detection pipeline 6 in parallel, the compressed air detection pipeline 5 is sequentially provided with the first stop valve 7, the air filter 8, the first pressure reducing valve 9, the first pressure gauge 10 and the first check valve 11 along the air inlet direction, the steam detection pipeline 6 is sequentially provided with the second stop valve 12, the steam filter 13, the second pressure reducing valve 14, the second pressure gauge 15 and the second check valve 16 along the steam inlet direction, the inlet ends of the compressed air detection pipeline 5 and the steam detection pipeline 6 are connected with the two outlet ends of the three-way valve 17 respectively, the injection medium supply pipeline includes the injection compressed air supply pipeline 18 and the injection steam supply pipeline 19, the inlet end of the three-way valve 17 is detachably connected with any one of the injection compressed air supply pipeline 18 and the injection steam supply pipeline 19 through the first quick release structure 20, the outlet ends of the compressed air detection pipeline 5 and the steam detection pipeline 6 are connected with the two inlet ends of the three-way pipe 32 respectively, and the outlet end of the three-way pipe 32 is detachably connected with the injection pipe 3 through the second quick release structure 21.

[0019] The inlet pipe 2 is connected to the feed pipe 23 via the feed detection pipe 22. Both ends of the feed detection pipe 22 are detachably connected to the feed pipe 23 and the inlet pipe 2 via a third quick-release structure 24. A third check valve 25 is installed on the feed detection pipe 22. A third shut-off valve 26 is also installed on the feed detection pipe 22, located upstream of the third check valve 25. The check valves are used to prevent backflow of the feed liquid or medium.

[0020] The ejector compressed air supply line 18 is equipped with a first supply shut-off valve 27, and the ejector steam supply line 19 is equipped with a second supply shut-off valve 28. The liquid feed line 23 is equipped with a third supply shut-off valve 29.

[0021] Each quick-release structure includes a telescopic hose 30 and quick connectors 31 located at both ends of the telescopic hose 30, enabling quick connection and disconnection with the corresponding two sections of pipeline via the quick connectors 31. Appropriate testing pipelines can be selectively connected as needed to enable offline testing and adjustment of the ejector pressure, and the atomization situation can be observed during the adjustment process, ensuring the accuracy of the adjustment results and thus guaranteeing the atomization effect of the liquid.

[0022] With the drum feeder stopped, open the inspection door of the drum to observe the atomization of the liquid inside the drum. Connect the two ends of the liquid detection pipe 22 to the liquid supply pipe 23 and the liquid inlet pipe 2 respectively through two third quick-connect structures, and connect the ejector detection module 4 to the ejector pipe 3 through the second quick-release structure 21.

[0023] When compressed air is used as the ejector medium for the liquid feed, the inlet end of the three-way valve 17 is connected to the ejector compressed air supply line 18 via the first quick-release structure 20. The outlet end of the three-way valve 17 is connected to the compressed air detection line 5, while the other outlet end is disconnected, thus connecting the compressed air detection line 5 to the ejector compressed air supply line 18. The third shut-off valve 26 and the third supply shut-off valve 29 are opened, and the liquid feeds sequentially through the liquid supply line 23, the liquid detection line 22, and the inlet pipe 2 before entering the dual-medium nozzle 1. Simultaneously, the first shut-off valve 7 and the first supply shut-off valve 27 are opened, and the compressed air sequentially through the ejector compressed air supply line 18, the compressed air detection line 5, and the ejector pipe 3 before entering the dual-medium nozzle 1. After the compressed air and liquid feed reach the dual-medium nozzle 1, the compressed air atomizes the liquid feed. The pressure of the first pressure reducing valve 9 is adjusted according to the required compressed air pressure, and the pressure value is read through the first pressure gauge 10 to observe the atomization of the liquid feed inside the drum. Adjust the pressure of the first pressure reducing valve 9 according to the atomization results to ensure good atomization. After the test, close all shut-off valves.

[0024] When steam is required as the ejector medium for the liquid, the inlet of the three-way valve 17 is connected to the ejector steam supply line 19 via the first quick-release structure 20. The outlet of the three-way valve 17 is connected, while the other outlet is disconnected, thus connecting the steam detection line 6 to the ejector steam supply line 19. The third shut-off valve 26 and the third supply shut-off valve 29 are opened, and the liquid flows sequentially through the liquid supply line 23, the liquid detection line 22, and the inlet pipe 2 before entering the dual-medium nozzle 1. Simultaneously, the second shut-off valve 12 and the second supply shut-off valve 28 are opened, and steam flows sequentially through the ejector steam supply line 19, the steam detection line 6, and the ejector pipe 3 before entering the dual-medium nozzle 1. After the steam and liquid reach the dual-medium nozzle 1, the steam atomizes the liquid. The pressure of the second pressure reducing valve 14 is adjusted according to the required steam pressure, and the pressure value is read through the second pressure gauge 15 to observe the atomization of the liquid inside the drum. Adjust the pressure of the second pressure reducing valve 14 according to the atomization results to ensure good atomization. After the test, close all shut-off valves.

[0025] With this testing device, the atomization effect of the dual-media nozzle 1 can be observed offline, regardless of whether compressed air or steam is used to eject the liquid, thus ensuring that the dual-media nozzle 1 achieves the same feeding atomization effect during operation.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-medium nozzle testing device, wherein the two inlets of the dual-medium nozzle are respectively connected to an inlet pipe and an ejector pipe, characterized in that: The ejector tube is connected to the ejector medium supply pipeline via an ejector detection module. The ejector detection module includes a compressed air detection pipeline and a steam detection pipeline connected in parallel. The compressed air detection pipeline is provided with an air filter, a first pressure reducing valve, a first pressure gauge, and a first check valve in sequence along the air inlet direction. The steam detection pipeline is provided with a steam filter, a second pressure reducing valve, a second pressure gauge, and a second check valve in sequence along the steam inlet direction. The inlet ends of the compressed air detection pipeline and the steam detection pipeline are respectively connected to the two outlet ends of the three-way valve. The ejector medium supply pipeline includes an ejector compressed air supply pipeline and an ejector steam supply pipeline. The inlet end of the three-way valve is detachably connected to either the ejector compressed air supply pipeline or the ejector steam supply pipeline via a first quick-release structure. The outlet ends of the compressed air detection pipeline and the steam detection pipeline are respectively connected to the two inlet ends of the three-way valve. The outlet end of the three-way valve is detachably connected to the ejector tube via a second quick-release structure.

2. The dual-medium nozzle testing device as described in claim 1, characterized in that: The inlet pipe is connected to the feed pipe via a feed detection pipe. Both ends of the feed detection pipe are detachably connected to the feed pipe and the inlet pipe via a third quick-release structure. A third check valve is provided on the feed detection pipe.

3. The dual-medium nozzle testing device as described in claim 1, characterized in that: The compressed air detection pipeline is also equipped with a first shut-off valve, which is located upstream of the air filter.

4. The dual-medium nozzle testing device as described in claim 1, characterized in that: The steam detection pipeline is also equipped with a second shut-off valve, which is located upstream of the steam filter.

5. The dual-medium nozzle testing device as described in claim 2, characterized in that: The liquid detection pipeline is also equipped with a third shut-off valve, which is located upstream of the third check valve.

6. A dual-medium nozzle testing device as described in claim 1 or 2, characterized in that: Each quick-release structure includes a telescopic hose and quick connectors at both ends of the telescopic hose, which connect to the corresponding two sections of the pipeline.

7. The dual-medium nozzle testing device as described in claim 1, characterized in that: The ejector compressed air supply pipeline is equipped with a first supply shut-off valve, and the ejector steam supply pipeline is equipped with a second supply shut-off valve.

8. The dual-medium nozzle testing device as described in claim 2, characterized in that: The liquid supply pipe is equipped with a third supply shut-off valve.

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