Pipeline control method, device and equipment of moisture regaining machine, medium and program product

Abstract

The invention relates to a pipeline control method, device and equipment of a damping machine, a medium and a program product. The method comprises the following steps: acquiring a condensate water discharge signal for the moisture regaining machine heat exchange system; the pipeline switching valve group is controlled to be switched into a first state; in the first state, the steam input pipeline is communicated with the condensate water recovery pipeline, and the steam input pipeline and the condensate water recovery pipeline are both disconnected with the heat exchanger; the steam valve is controlled to be adjusted to a first opening degree from a closed state at a first adjusting speed, so that condensate water in the steam input pipeline is transited to a flowing state from a static state and is discharged through the condensate water recovery pipeline; and under the condition that the pipeline temperature of the condensate water recycling pipeline is larger than the first temperature threshold value and smaller than the second temperature threshold value, the valve opening degree of the steam valve is controlled to be adjusted from the first opening degree to the second opening degree, and the second opening degree is larger than the first opening degree. By means of the method, the condensate water discharging efficiency can be improved, and potential safety hazards are avoided.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline control, and particularly to a pipeline control method, device, equipment, medium and program product for a conditioning machine. Background Art

[0002] A conditioning machine is a core device used for material conditioning in cigarette production, and its performance directly affects production efficiency and product quality. The heat exchanger of the conditioning machine is used to achieve heat exchange between the steam circuit and the circulating air circuit. The heat of the steam in the steam circuit is transferred to the circulating air circuit through the heat exchanger, and the circulating air in the circulating air circuit enters the conditioning machine, thereby realizing the temperature control of the material in the conditioning machine. After the conditioning machine stops or the heat exchanger completes heat exchange, there is often a large amount of condensate in the steam circuit. Therefore, before production, it is necessary to discharge the condensate.

[0003] In the traditional method, the condensate discharge operation is usually carried out manually. However, due to the water hammer effect of the condensate in the pipeline, it is easy to be dangerous during the condensate discharge process, and the discharge process depends on the experience of technicians, resulting in low discharge efficiency. Summary of the Invention

[0004] Based on this, in view of the above technical problems, it is necessary to provide a pipeline control method, device, equipment, medium and program product for a conditioning machine, so as to reduce the safety risk and improve the discharge efficiency.

[0005] In a first aspect, the present application provides a pipeline control method for a conditioning machine, including:[[]]

[0006] Obtaining a condensate discharge signal for the heat exchange system of the conditioning machine; the heat exchange system of the conditioning machine includes a steam input pipeline, a condensate recovery pipeline, a heat exchanger and a pipeline switching valve group; a steam valve is provided in the steam input pipeline;

[0007] Controlling the pipeline switching valve group to switch to a first state; in the first state, the steam input pipeline is communicated with the condensate recovery pipeline, and both the steam input pipeline and the condensate recovery pipeline are cut off from the heat exchanger;

[0008] Controlling the steam valve to be adjusted from the closed state to a first opening degree at a first adjustment rate, so that the condensate in the steam input pipeline transitions from a static state to a flowing state and is discharged through the condensate recovery pipeline;

[0009] When the pipeline temperature of the condensate recovery pipeline is greater than a first temperature threshold and less than a second temperature threshold, controlling the valve opening degree of the steam valve to be adjusted from the first opening degree to a second opening degree, and the second opening degree is greater than the first opening degree.

[0010] In one embodiment, it further includes: when the pipeline temperature of the condensate recovery pipeline is not less than the second temperature threshold, controlling the pipeline switching valve group to switch to the second state; in the second state, the steam input pipeline is communicated with the heat exchange input pipeline of the heat exchanger, the heat exchange output pipeline of the heat exchanger is communicated with the condensate recovery pipeline, and the steam input pipeline is cut off from the condensate recovery pipeline; controlling the valve opening of the steam valve to be adjusted from the second opening to the third opening, and the third opening is greater than the second opening.

[0011] In one embodiment, the pipeline switching valve group includes: a first control valve disposed between the steam input pipeline and the heat exchange input pipeline; a second control valve disposed between the heat exchange output pipeline and the condensate recovery pipeline; a connecting pipeline, one end of the connecting pipeline is connected to the first control valve, and the other end of the connecting pipeline is connected to the second control valve; wherein, when the pipeline switching valve group switches to the first state, the first control valve is in the first sub-state, and the second control valve is in the second sub-state; when the first control valve is in the first sub-state, the steam input pipeline is communicated with the connecting pipeline, and the steam input pipeline is cut off from the heat exchange input pipeline; when the second control valve is in the second sub-state, the condensate recovery pipeline is communicated with the connecting pipeline, and the condensate recovery pipeline is cut off from the heat exchange output pipeline.

[0012] In one embodiment, when the pipeline switching valve group switches to the second state, the first control valve is in the third sub-state, and the second control valve is in the fourth sub-state; when the first control valve is in the third sub-state, the steam input pipeline is communicated with the heat exchange input pipeline, and the steam input pipeline is cut off from the connecting pipeline; when the second control valve is in the fourth sub-state, the condensate recovery pipeline is communicated with the heat exchange output pipeline, and the condensate recovery pipeline is cut off from the connecting pipeline.

[0013] In one embodiment, a third control valve is provided in the heat exchange input pipeline; after controlling the valve opening of the steam valve to be adjusted from the second opening to the third opening, it further includes: obtaining the first steam pressure in the steam input pipeline within the first preset time period; when the first steam pressure is within the first pressure range within the first preset time period, adjusting the valve opening of the third control valve until the steam pressure in the heat exchange input pipeline is at a preset pressure value; obtaining the second steam pressure in the heat exchange input pipeline within the second preset time period; when the second steam pressure is within the second pressure range within the second preset time period, adjusting the valve opening of the third control valve to the fourth opening.

[0014] In one embodiment, the pipeline switching valve group is further connected to a discharge pipeline; correspondingly, before controlling the pipeline switching valve group to be in the first state, it further includes: controlling the pipeline switching valve to switch to the third state; in the third state, the heat exchange output pipeline of the heat exchanger is connected to the discharge pipeline, so that the condensed water in the heat exchanger is discharged through the discharge pipeline.

[0015] Second, the present application also provides a pipeline control device for a rehumidifier, including:

[0016] A first acquisition module, configured to acquire a condensed water discharge signal for the heat exchange system of the rehumidifier; the heat exchange system of the rehumidifier includes a steam input pipeline, a condensed water recovery pipeline, a heat exchanger, and a pipeline switching valve group; a steam valve is provided in the steam input pipeline;

[0017] A first control module, configured to control the pipeline switching valve group to switch to the first state; in the first state, the steam input pipeline is communicated with the condensed water recovery pipeline, and both the steam input pipeline and the condensed water recovery pipeline are cut off from the heat exchanger;

[0018] A second control module, configured to control the steam valve to be adjusted from the closed state to the first opening degree at the first adjustment rate, so that the condensed water in the steam input pipeline transitions from the static state to the flowing state and is discharged through the condensed water recovery pipeline;

[0019] A third control module, configured to control the opening degree of the steam valve to be adjusted from the first opening degree to the second opening degree when the pipeline temperature of the condensed water recovery pipeline is greater than the first temperature threshold and less than the second temperature threshold, and the second opening degree is greater than the first opening degree.

[0020] Third, the present application also provides a computer device, including a memory and a processor, where the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0021] Acquire a condensed water discharge signal for the heat exchange system of the rehumidifier; the heat exchange system of the rehumidifier includes a steam input pipeline, a condensed water recovery pipeline, a heat exchanger, and a pipeline switching valve group; a steam valve is provided in the steam input pipeline;

[0022] Control the pipeline switching valve group to switch to the first state; in the first state, the steam input pipeline is communicated with the condensed water recovery pipeline, and both the steam input pipeline and the condensed water recovery pipeline are cut off from the heat exchanger;

[0023] Control the steam valve to be adjusted from the closed state to the first opening degree at the first adjustment rate, so that the condensed water in the steam input pipeline transitions from the static state to the flowing state and is discharged through the condensed water recovery pipeline;

[0024] When the pipeline temperature of the condensate recovery pipeline is greater than the first temperature threshold and less than the second temperature threshold, control the valve opening of the steam valve to be adjusted from the first opening to the second opening, and the second opening is greater than the first opening.

[0025] Fourthly, the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0026] Obtain a condensate discharge signal for the heat exchange system of the rehumidifier; the heat exchange system of the rehumidifier includes a steam input pipeline, a condensate recovery pipeline, a heat exchanger, and a pipeline switching valve group; a steam valve is arranged in the steam input pipeline;

[0027] Control the pipeline switching valve group to switch to the first state; in the first state, the steam input pipeline is communicated with the condensate recovery pipeline, and both the steam input pipeline and the condensate recovery pipeline are cut off from the heat exchanger;

[0028] Control the steam valve to be adjusted from the closed state to the first opening at the first adjustment rate, so that the condensate in the steam input pipeline transitions from the static state to the flowing state and is discharged through the condensate recovery pipeline;

[0029] When the pipeline temperature of the condensate recovery pipeline is greater than the first temperature threshold and less than the second temperature threshold, control the valve opening of the steam valve to be adjusted from the first opening to the second opening, and the second opening is greater than the first opening.

[0030] Fifthly, the present application also provides a computer program product, including a computer program. When the computer program is executed by a processor, the following steps are implemented:

[0031] Obtain a condensate discharge signal for the heat exchange system of the rehumidifier; the heat exchange system of the rehumidifier includes a steam input pipeline, a condensate recovery pipeline, a heat exchanger, and a pipeline switching valve group; a steam valve is arranged in the steam input pipeline;

[0032] Control the pipeline switching valve group to switch to the first state; in the first state, the steam input pipeline is communicated with the condensate recovery pipeline, and both the steam input pipeline and the condensate recovery pipeline are cut off from the heat exchanger;

[0033] Control the steam valve to be adjusted from the closed state to the first opening at the first adjustment rate, so that the condensate in the steam input pipeline transitions from the static state to the flowing state and is discharged through the condensate recovery pipeline;

[0034] When the pipeline temperature of the condensate recovery pipeline is greater than the first temperature threshold and less than the second temperature threshold, control the valve opening of the steam valve to be adjusted from the first opening to the second opening, and the second opening is greater than the first opening.

[0035] The above pipeline control method, device, equipment, medium and program product of the humidifying machine avoid the influence on the heat exchanger during the condensate discharge process by controlling the pipeline switching valve group to switch to the first state, connecting the steam input pipeline and the condensate recovery pipeline, and cutting off both the steam input pipeline and the condensate recovery pipeline from the heat exchanger. By introducing the first adjustment rate and the first opening degree, and controlling the steam valve to adjust from the closed state to the first opening degree at the first adjustment rate, the condensate in the steam input pipeline can be transitioned from a static state to a flowing state and discharged through the condensate recovery pipeline, avoiding the water hammer effect caused by too large a valve opening degree or too fast an adjustment rate of the steam valve and preventing potential safety hazards. When the pipeline temperature in the condensate recovery pipeline is greater than the first temperature threshold and less than the second temperature threshold, the steam in the pipeline is unsaturated steam at this time. By controlling the valve opening degree of the steam valve to adjust from the first opening degree to the second opening degree, the discharge speed of the condensate can be increased, which is beneficial to improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments of the present application or related technologies. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0037] Figure 1 It is an application environment diagram of the pipeline control method of the humidifying machine in an embodiment;

[0038] Figure 2A It is a schematic flowchart of the pipeline control method of the humidifying machine in an embodiment;

[0039] Figure 2B It is a schematic structural diagram of the system when the pipeline switching valve group is switched to the first state in an embodiment;

[0040] Figure 3A It is a schematic flowchart of the control steps of the steam valve in an embodiment;

[0041] Figure 3B It is a schematic structural diagram of the system when the pipeline switching valve group is switched to the second state in an embodiment;

[0042] Figure 4 It is a schematic flowchart of the control steps of the third control valve in an embodiment;

[0043] Figure 5 It is a schematic structural diagram of the system when the pipeline switching valve group is switched to the third state in an embodiment;

[0044] Figure 6 It is a schematic flow diagram of the pipeline control method of the conditioning machine in another embodiment;

[0045] Figure 7 It is a structural block diagram of the pipeline control device of the conditioning machine in one embodiment;

[0046] Figure 8 It is the internal structure diagram of a computer device in one embodiment. Detailed implementation manners

[0047] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0048] The pipeline control method of the conditioning machine provided by the embodiments of the present application can be applied to a Figure 1 conditioning machine heat exchange system as shown.

[0049] Among them, the conditioning machine heat exchange system includes a steam input pipeline 1, a condensate recovery pipeline 2, a heat exchange input pipeline 3, a heat exchange output pipeline 4 and a connection pipeline 5; the heat exchange input pipeline 3 is connected between the output end of the steam input pipeline 1 and the steam input end of the heat exchanger 6; the heat exchange output pipeline 4 is connected between the condensate output end of the heat exchanger 6 and the input end of the condensate recovery pipeline 2; one end of the connection pipeline 5 is connected to the output end of the steam input pipeline 1 and the input end of the heat exchange input pipeline 3 through a first control valve 7; the other end of the connection pipeline 5 is connected to the output end of the heat exchange output pipeline 4 and the input end of the condensate recovery pipeline 2 through a second control valve 8. The conditioning machine heat exchange system may further include an exhaust pipeline 9. One end of the exhaust pipeline 9 is connected to the second control valve 8, and the other end of the exhaust pipeline 9 is connected to a trench. It can be understood that the steam input end and the condensate output end of the heat exchanger 6 are communicated with each other.

[0050] Exemplarily, a steam valve may be provided in the steam input pipeline, and a third control valve may be provided in the heat exchange input pipeline.

[0051] Exemplarily, a steam device may be connected to the input end of the steam input pipeline for supplying steam to the steam input pipeline.

[0052] Among them, the moisture regain machine heat exchange system may further include a circulating air circuit. The circulating air circuit includes a circulating air input pipeline 10 and a circulating air output pipeline 11; the circulating air input pipeline 10 is connected between the circulating air output end of the heat exchanger 6 and the input end of the moisture regain machine 12; the circulating air output pipeline 11 is connected between the circulating air input end of the heat exchanger 6 and the output end of the moisture regain machine 12. It can be understood that the circulating air input end and the circulating air output end of the heat exchanger 6 are communicated with each other.

[0053] Exemplarily, a fan 13 and a circulating air valve 14 may be provided in the circulating air circuit. Among them, the fan is used to provide circulating air.

[0054] Exemplarily, a first temperature sensor 10-1 may be provided in the circulating air input pipeline 10 for measuring the first temperature in the circulating air input pipeline, and a second temperature sensor 11-1 may be provided in the circulating air output pipeline 11 for measuring the second temperature in the circulating air output pipeline.

[0055] In an exemplary embodiment, as Figure 2A shown, a pipeline control method for a moisture regain machine is provided, including:

[0056] S210. Obtain a condensate discharge signal for the moisture regain machine heat exchange system; the moisture regain machine heat exchange system includes a steam input pipeline, a condensate recovery pipeline, a heat exchanger, and a pipeline switching valve group; a steam valve is provided in the steam input pipeline.

[0057] Among them, the condensate discharge signal may include at least one of a moisture regain machine start signal, a moisture regain machine heat exchange system start signal, etc. This application does not make any limitations on the specific triggering conditions and signal types of the condensate discharge signal.

[0058] Among them, the pipeline switching valve group is used to switch the connection state of each pipeline in the moisture regain machine heat exchange system, so as to realize the switching of different working states.

[0059] In an alternative embodiment, the working state of the pipeline switching valve group may include a first state, a second state, etc.

[0060] Exemplarily, when the pipeline switching valve group is switched to the first state, the steam input pipeline is communicated with the condensate recovery pipeline, and both the steam input pipeline and the condensate recovery pipeline are cut off from the heat exchanger.

[0061] Exemplarily, when the pipeline switching valve group is switched to the second state, the steam input pipeline is communicated with the heat exchange input pipeline of the heat exchanger, the heat exchange output pipeline of the heat exchanger is communicated with the condensate recovery pipeline, and the steam input pipeline is cut off from the condensate recovery pipeline.

[0062] S220. Control the pipeline switching valve group to switch to the first state. In the first state, the steam input pipeline is communicated with the condensate recovery pipeline, and both the steam input pipeline and the condensate recovery pipeline are cut off from the heat exchanger.

[0063] Continue to refer to Figure 1 , the pipeline switching valve group may include a first control valve, a second control valve and a connecting pipeline. The first control valve is arranged between the steam input pipeline and the heat exchange input pipeline, the second control valve is arranged between the heat exchange output pipeline and the condensate recovery pipeline, one end of the connecting pipeline is connected to the first control valve, and the other end of the connecting pipeline is connected to the second control valve.

[0064] Exemplarily, the first control valve may be a three-way valve or a four-way valve, etc. The second control valve may be a three-way valve or a four-way valve, etc. It should be noted that the present application does not make any limitation on the specific valve types of the first control valve and the second control valve.

[0065] Refer to Figure 2B The figure shows a schematic diagram of the system structure when the pipeline switching valve group is switched to the first state. When the pipeline switching valve group is switched to the first state, the first control valve 7 is in the first sub-state, and the second control valve 8 is in the second sub-state. Among them, when the first control valve 7 is in the first sub-state, the steam input pipeline 1 is communicated with the connecting pipeline 5, and the steam input pipeline 1 is cut off from the heat exchange input pipeline; when the second control valve 8 is in the second sub-state, the condensate recovery pipeline 2 is communicated with the connecting pipeline 5, and the condensate recovery pipeline 2 is cut off from the heat exchange output pipeline.

[0066] S230. Control the steam valve to be adjusted from the closed state to the first opening degree at the first adjustment rate, so that the condensate in the steam input pipeline transitions from the static state to the flowing state and is discharged through the condensate recovery pipeline.

[0067] Among them, the first adjustment rate is used to characterize the adjustment speed during the process of adjusting the steam valve from the closed state to the first opening degree.

[0068] Among them, the closed state can be understood as that the steam valve is in the off state, that is, the valve opening degree of the steam valve is 0%.

[0069] It should be noted that the first opening degree and the first adjustment rate can be set by technicians according to needs or experience, or determined through a large number of experiments. The present application does not make any limitation on this. Exemplarily, the first opening degree can be set to 5%. The first adjustment rate can be set to 5% / min, that is, the valve opening degree of the steam valve is adjusted from 0% to 5% in 1 minute.

[0070] S240. When the pipeline temperature of the condensate recovery pipeline is greater than the first temperature threshold and less than the second temperature threshold, control the valve opening of the steam valve to be adjusted from the first opening to the second opening, and the second opening is greater than the first opening.

[0071] Among them, the pipeline temperature of the condensate recovery pipeline can be detected by setting a temperature sensor in the condensate recovery pipeline.

[0072] Among them, the first temperature threshold and the second temperature threshold can be set by technicians according to needs or experience, or determined through a large number of experiments. This application does not make any limitations on this. Exemplarily, the first temperature threshold can be set to 100 °C, and the second temperature threshold can be set to 120 °C.

[0073] In an alternative embodiment, the steam valve can be controlled to be adjusted from the first opening to the second opening at the second adjustment rate. It should be noted that the second opening and the second adjustment rate can be set by technicians according to needs or experience, or determined through a large number of experiments. This application does not make any limitations on this. Exemplarily, the second opening can be set to 10%. The second adjustment rate can be set to 5% / min, that is, the valve opening of the steam valve is adjusted from 5% to 10% in 1 minute.

[0074] The above pipeline control method of the conditioning machine conducts the steam input pipeline and the condensate recovery pipeline by controlling the pipeline switching valve group to switch to the first state, and both the steam input pipeline and the condensate recovery pipeline are cut off from the heat exchanger, thereby avoiding the influence of the condensate discharge process on the heat exchanger. By introducing the first adjustment rate and the first opening, and controlling the steam valve to be adjusted from the closed state to the first opening at the first adjustment rate, the condensate in the steam input pipeline can be transitioned from a static state to a flowing state and discharged through the condensate recovery pipeline, avoiding the occurrence of water hammer effect due to too large a valve opening or too fast an adjustment rate of the steam valve, and avoiding potential safety hazards. When the pipeline temperature of the condensate recovery pipeline is greater than the first temperature threshold and less than the second temperature threshold, the steam in the pipeline is unsaturated steam at this time. By controlling the valve opening of the steam valve to be adjusted from the first opening to the second opening, the discharge speed of the condensate can be increased, which is beneficial to improving work efficiency.

[0075] Based on the technical solutions of the above embodiments, this application also provides an alternative embodiment, in which a control step of the steam valve is added.

[0076] Refer to Figure 3A The schematic flow chart of the control steps of the shown steam valve includes:

[0077] S310. When the pipeline temperature of the condensate recovery pipeline is not less than the second temperature threshold, control the pipeline switching valve group to switch to the second state; in the second state, the steam input pipeline is communicated with the heat exchange input pipeline of the heat exchanger, the heat exchange output pipeline of the heat exchanger is communicated with the condensate recovery pipeline, and the steam input pipeline is cut off from the condensate recovery pipeline.

[0078] Reference Figure 3B Refer to the schematic diagram of the system structure when the pipeline switching valve group is switched to the second state as shown. When the pipeline switching valve group is switched to the second state, the first control valve 7 is in the third sub-state, and the second control valve 8 is in the fourth sub-state; when the first control valve 7 is in the third sub-state, the steam input pipeline 1 is communicated with the heat exchange input pipeline 3, and the steam input pipeline 1 is cut off from the connecting pipeline 5; when the second control valve 8 is in the fourth sub-state, the condensate recovery pipeline 2 is communicated with the heat exchange output pipeline 4, and the condensate recovery pipeline 2 is cut off from the connecting pipeline 5.

[0079] Among them, the second temperature threshold can be set to 120 °C. It can be understood that when the pipeline temperature of the condensate recovery pipeline is not less than the second temperature threshold, it can be determined that the steam in the pipeline is in the saturated steam stage at this time. By switching the pipeline switching valve group to the second state, it is convenient to input steam into the heat exchanger for heat exchange.

[0080] S320. Control the valve opening of the steam valve to be adjusted from the second opening to the third opening, and the third opening is greater than the second opening.

[0081] In an optional embodiment, the steam valve can be controlled to be adjusted from the second opening to the third opening at the third adjustment rate. It should be noted that the third opening and the third adjustment rate can be set by those skilled in the art according to needs or experience, or determined through a large number of experiments. The present application does not make any limitations in this regard. Exemplarily, the third opening can be set to 100%, and the third adjustment rate can be set to 90% / min, that is, the valve opening of the steam valve is adjusted from 10% to 100% in 1 minute.

[0082] In the above steps, by controlling the pipeline switching valve group to switch to the second state when the pipeline temperature of the condensate recovery pipeline is not less than the second temperature threshold, it is possible to communicate the steam input pipeline with the heat exchange input pipeline of the heat exchanger, communicate the heat exchange output pipeline of the heat exchanger with the condensate recovery pipeline, and cut off the steam input pipeline from the condensate recovery pipeline when the steam in the pipeline is in the saturated steam stage, so as to facilitate the supply of steam to the heat exchanger. Control the steam valve to be adjusted from the second opening to the third opening at the third adjustment rate, so as to ensure the safety and stability of steam supply.

[0083] Based on the technical solutions of the above embodiments, the present application also provides an alternative embodiment. In this alternative embodiment, a third control valve is provided in the heat exchange input pipeline, and the control steps of the third control valve are added.

[0084] Refer to Figure 4 The schematic flow diagram of the control steps of the third control valve shown, including:

[0085] S410. Obtain the first steam pressure in the steam input pipeline within the first preset time period.

[0086] In an alternative embodiment, after the preset time or after the steam pressure in the steam input pipeline reaches the preset steam pressure, by controlling the valve state, the steam input pipeline is cut off from other pipelines, and the first steam pressure in the steam input pipeline within the first preset time period is obtained.

[0087] Optionally, the third control valve and the steam valve can be closed to cut off the steam input pipeline from other pipelines to realize the airtightness detection of the steam input pipeline.

[0088] It should be noted that the first preset time period and the preset steam pressure can be set by technicians according to needs or experience, or determined through a large number of experiments. The present application does not make any limitations on this. Exemplarily, the time length of the first preset time period can be set to 3 min, and the preset steam pressure can be set to 0.8 MPa.

[0089] Optionally, a first pressure sensor can be provided in the steam input pipeline to detect the first steam pressure in the steam input pipeline.

[0090] S420. When the first steam pressure is within the first pressure range within the first preset time period, adjust the valve opening of the third control valve until the steam pressure in the heat exchange input pipeline reaches the preset pressure value.

[0091] Exemplarily, the first pressure range can be determined according to the preset steam pressure and the preset fluctuation value. Optionally, the preset fluctuation value can be set to 0.01 MPa, and the first pressure range can be set to 0.8 MPa - 0.081 MPa. s

[0092] In an alternative embodiment, the steam input pipeline can be connected to at least one heat exchange input pipeline. Correspondingly, the preset pressure value can be set to 0.3 MPa. The preset pressure value can be set by technicians according to needs or experience, or determined through a large number of experiments. The present application does not make any limitations on this.

[0093] S430. Obtain the second steam pressure in the heat exchange input pipeline within the second preset time period.

[0094] In an optional embodiment, by controlling the valve state, the heat exchange input pipeline can be cut off from other pipelines, so as to obtain the second steam pressure in the heat exchange input pipeline within a second preset time period.

[0095] Optionally, after the steam pressure in the heat exchange input pipeline reaches a preset pressure value, the third control valve can be closed, and the input control valve of the heat exchanger or the output control valve of the heat exchange input pipeline can be closed, so as to obtain the second steam pressure in the heat exchange input pipeline within a second preset time period, so as to realize the tightness detection of the heat exchange input pipeline.

[0096] Optionally, a second pressure sensor can be arranged in the heat exchange input pipeline to detect the second steam pressure in the heat exchange input pipeline.

[0097] It should be noted that the second preset time period can be set by technicians according to needs or experience, or determined through a large number of experiments, and the present application does not make any limitations thereto. Exemplarily, the time length of the second time period can be set to 5 min.

[0098] S440. When the second steam pressure is within the second pressure range during the second preset time period, adjust the valve opening of the third control valve to a fourth opening.

[0099] Exemplarily, the second pressure range can be determined according to the preset pressure value and the preset fluctuation value. Optionally, the preset fluctuation value can be set to 0.01 MPa, and the second pressure range can be set to 0.3 MPa - 0.031 MPa.

[0100] It should be noted that the fourth opening can be set by technicians according to needs or experience, or determined through a large number of experiments, and the present application does not make any limitations thereto. Exemplarily, the fourth opening can be set to 100%.

[0101] In the above steps, by obtaining the first steam pressure in the steam input pipeline within the first preset time period, when the first steam pressure is within the first pressure range during the first preset time period, it is determined that the steam input pipeline has no leakage. By obtaining the second steam pressure in the heat exchange input pipeline within the second preset time period, when the second steam pressure is within the second pressure range during the second preset time period, it is determined that the steam input pipeline has no leakage, and then the valve opening of the third control valve is adjusted to the fourth opening to supply steam to the heat exchange device.

[0102] In an alternative embodiment, the pipeline switching valve group is further connected to a discharge pipeline; correspondingly, before controlling the pipeline switching valve group to be in the first state, it further includes: controlling the pipeline switching valve to switch to the third state; in the third state, the heat exchange output pipeline of the heat exchanger is connected to the discharge pipeline, so that the condensed water in the heat exchanger is discharged through the discharge pipeline.

[0103] Reference Figure 5 The figure shows a schematic diagram of the system structure when the pipeline switching valve group is switched to the third state. When the pipeline switching valve group is switched to the third state, the first control valve 7 is in the fifth sub-state, and the second control valve 8 is in the sixth sub-state; when the first control valve 7 is in the fifth sub-state, the steam input pipeline is cut off from the heat exchange input pipeline 3, and the steam input pipeline is cut off from the connection pipeline; when the second control valve 8 is in the sixth sub-state, the heat exchange output pipeline is cut off from the condensed water recovery pipeline, the heat exchange output pipeline is cut off from the connection pipeline, and the heat exchange output pipeline 4 is communicated with the discharge pipeline 9.

[0104] In an alternative embodiment, a condensed water discharge valve is provided in the discharge pipeline, which can control the pipeline switching valve to switch to the third state, open the condensed water discharge valve, and close the condensed water discharge valve after a preset discharge duration.

[0105] In an alternative embodiment, continuing to refer to Figure 1 , the heat exchange system of the conditioning machine may further include a circulating air circuit. The circulating air circuit includes a circulating air input pipeline 10 and a circulating air output pipeline 11; the circulating air input pipeline 10 is connected between the circulating air output end of the heat exchanger 6 and the input end of the conditioning machine 12; the circulating air output pipeline 11 is connected between the circulating air input end of the heat exchanger 6 and the output end of the conditioning machine 12. It can be understood that the circulating air input end and the circulating air output end of the heat exchanger 6 are communicated with each other. A fan 13 and a circulating air valve 14 may be provided in the circulating air circuit. A first temperature sensor 10-1 may be provided in the circulating air input pipeline 10 for measuring the first temperature in the circulating air input pipeline 10, and a second temperature sensor 11-1 may be provided in the circulating air output pipeline 11 for measuring the second temperature in the circulating air output pipeline 11.

[0106] In an alternative embodiment, the pipeline control method of the conditioning machine further includes: adjusting the valve opening of the circulating air valve, obtaining the first temperature detected by the first temperature sensor and the second temperature detected by the second sensor, and determining the effectiveness of the first temperature sensor and the second temperature sensor according to the first temperature and the second temperature.

[0107] Exemplarily, the valve opening of the circulating air valve can be increased. If the first temperature does not rise, it is determined that the first temperature sensor is faulty. The valve opening of the circulating air valve can be decreased. If the first temperature does not drop, it is determined that the first temperature sensor is faulty.

[0108] Exemplarily, when the first temperature rises and the second temperature does not rise synchronously with the first temperature, it is determined that the second temperature sensor fails. When the first temperature drops and the second temperature does not drop synchronously with the first temperature, it is determined that the second temperature sensor fails.

[0109] In an exemplary embodiment, as Figure 6 shown, another pipeline control method for a rehumidifier is also provided, including:

[0110] S610. Obtain a condensate discharge signal for the heat exchange system of the rehumidifier; the heat exchange system of the rehumidifier includes a steam input pipeline, a condensate recovery pipeline, a heat exchanger, and a pipeline switching valve group; a steam valve is provided in the steam input pipeline;

[0111] S620. Control the pipeline switching valve to switch to the third state; in the third state, the heat exchange output pipeline of the heat exchanger is connected to the discharge pipeline, so that the condensate in the heat exchanger is discharged through the discharge pipeline.

[0112] S630. Obtain a condensate discharge signal for the heat exchange system of the rehumidifier; the heat exchange system of the rehumidifier includes a steam input pipeline, a condensate recovery pipeline, a heat exchanger, and a pipeline switching valve group; a steam valve is provided in the steam input pipeline;

[0113] S640. Control the pipeline switching valve group to switch to the first state; in the first state, the steam input pipeline is communicated with the condensate recovery pipeline, and both the steam input pipeline and the condensate recovery pipeline are cut off from the heat exchanger;

[0114] S650. Control the steam valve to adjust from the closed state to the first opening degree at the first adjustment rate, so that the condensate in the steam input pipeline transitions from the static state to the flowing state and is discharged through the condensate recovery pipeline;

[0115] S660. When the pipeline temperature of the condensate recovery pipeline is greater than the first temperature threshold and less than the second temperature threshold, control the valve opening degree of the steam valve to be adjusted from the first opening degree to the second opening degree, and the second opening degree is greater than the first opening degree.

[0116] S670. When the pipeline temperature of the condensate recovery pipeline is not less than the second temperature threshold, control the pipeline switching valve group to switch to the second state; in the second state, the steam input pipeline is communicated with the heat exchange input pipeline of the heat exchanger, the heat exchange output pipeline of the heat exchanger is communicated with the condensate recovery pipeline, and the steam input pipeline is cut off from the condensate recovery pipeline;

[0117] S680. Control the valve opening degree of the steam valve to be adjusted from the second opening degree to the third opening degree, and the third opening degree is greater than the second opening degree.

[0118] It should be understood that although the steps in the flowcharts involved in the above-described embodiments are displayed in sequence according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear indication in this document, the execution of these steps has no strict order limit, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-described embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be executed alternately or in turn with at least a part of other steps or steps or stages in other steps.

[0119] Based on the same inventive concept, an embodiment of the present application further provides a pipeline control device for a tobacco moisture conditioner for implementing the pipeline control method of the tobacco moisture conditioner involved above. The solution provided by this device to solve the problem is similar to the solution described in the above method. Therefore, the specific limitations in one or more embodiments of the pipeline control device for a tobacco moisture conditioner provided below can refer to the limitations on the pipeline control method of the tobacco moisture conditioner in the above text, and will not be repeated here.

[0120] In an exemplary embodiment, as Figure 7 shown, a pipeline control device for a tobacco moisture conditioner is provided, including: an acquisition module 710, a first control module 720, a second control module 730, and a third control module 740, where:

[0121] A first acquisition module 710 is configured to acquire a condensate discharge signal for the heat exchange system of the tobacco moisture conditioner; the heat exchange system of the tobacco moisture conditioner includes a steam input pipeline, a condensate recovery pipeline, a heat exchanger, and a pipeline switching valve group; a steam valve is provided in the steam input pipeline.

[0122] A first control module 720 is configured to control the pipeline switching valve group to switch to a first state; in the first state, the steam input pipeline is communicated with the condensate recovery pipeline, and both the steam input pipeline and the condensate recovery pipeline are cut off from the heat exchanger.

[0123] A second control module 730 is configured to control the steam valve to be adjusted from a closed state to a first opening degree at a first adjustment rate, so that the condensate in the steam input pipeline transitions from a stationary state to a flowing state and is discharged through the condensate recovery pipeline.

[0124] A third control module 740 is configured to control the valve opening degree of the steam valve to be adjusted from the first opening degree to a second opening degree, where the second opening degree is greater than the first opening degree, when the pipeline temperature of the condensate recovery pipeline is greater than a first temperature threshold and less than a second temperature threshold.

[0125] In one embodiment, it further includes: a fourth control module, configured to control the pipeline switching valve group to switch to a second state when the pipeline temperature of the condensate recovery pipeline is not less than a second temperature threshold; in the second state, the steam input pipeline is communicated with the heat exchange input pipeline of the heat exchanger, the heat exchange output pipeline of the heat exchanger is communicated with the condensate recovery pipeline, and the steam input pipeline is cut off from the condensate recovery pipeline; a fifth control module, configured to control the valve opening of the steam valve to be adjusted from a second opening to a third opening, and the third opening is greater than the second opening.

[0126] In one embodiment, the pipeline switching valve group includes: a first control valve, which is arranged between the steam input pipeline and the heat exchange input pipeline; a second control valve, which is arranged between the heat exchange output pipeline and the condensate recovery pipeline; a connecting pipeline, one end of the connecting pipeline is connected to the first control valve, and the other end of the connecting pipeline is connected to the second control valve; wherein, when the pipeline switching valve group switches to a first state, the first control valve is in a first sub-state and the second control valve is in a second sub-state; when the first control valve is in the first sub-state, the steam input pipeline is communicated with the connecting pipeline, and the steam input pipeline is cut off from the heat exchange input pipeline; when the second control valve is in the second sub-state, the condensate recovery pipeline is communicated with the connecting pipeline, and the condensate recovery pipeline is cut off from the heat exchange output pipeline.

[0127] In one embodiment, when the pipeline switching valve group switches to a second state, the first control valve is in a third sub-state and the second control valve is in a fourth sub-state; when the first control valve is in the third sub-state, the steam input pipeline is communicated with the heat exchange input pipeline, and the steam input pipeline is cut off from the connecting pipeline; when the second control valve is in the fourth sub-state, the condensate recovery pipeline is communicated with the heat exchange output pipeline, and the condensate recovery pipeline is cut off from the connecting pipeline.

[0128] In one embodiment, it further includes: a second acquisition module, configured to acquire a first steam pressure in the steam input pipeline within a first preset time period; a sixth control module, configured to adjust the valve opening of the third control valve until the steam pressure in the heat exchange input pipeline reaches a preset pressure value when the first steam pressure is within a first pressure range within the first preset time period; a third acquisition module, configured to acquire a second steam pressure in the heat exchange input pipeline within a second preset time period; a seventh control module, configured to adjust the valve opening of the third control valve to a fourth opening when the second steam pressure is within a second pressure range within the second preset time period.

[0129] In one embodiment, it further includes: an eighth control module, configured to control the pipeline switching valve to switch to a third state; in the third state, the heat exchange output pipeline of the heat exchanger is connected to the discharge pipeline, so that the condensed water in the heat exchanger is discharged through the discharge pipeline.

[0130] Each module in the pipeline control device of the above-mentioned tobacco moisture conditioner can be implemented in whole or in part by software, hardware, and their combination. The above-mentioned modules can be embedded in the processor in the computer device in the form of hardware or be independent of it, or be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above-mentioned modules.

[0131] In an exemplary embodiment, a computer device is provided. The computer device can be a terminal, and its internal structure diagram can be as Figure 8 shown. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit, and an input device. Among them, the processor, the memory, and the input / output interface are connected through a system bus, and the communication interface, the display unit, and the input device are connected to the system bus through the input / output interface. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used for exchanging information between the processor and external devices. The communication interface of the computer device is used for communicating with external terminals in a wired or wireless manner. The wireless manner can be implemented through WIFI, a mobile cellular network, near field communication (NFC), or other technologies. When the computer program is executed by the processor, it implements a pipeline control method for a tobacco moisture conditioner. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device, or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer covered on the display screen, or a button, a trackball, or a touchpad provided on the outer shell of the computer device, or an external keyboard, a touchpad, or a mouse, etc.

[0132] Those skilled in the art can understand that Figure 8 the structure shown in

[0133] In one embodiment, a computer device is further provided, including a memory and a processor. A computer program is stored in the memory, and when the processor executes the computer program, the steps in the foregoing method embodiments are implemented.

[0134] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the foregoing method embodiments are implemented.

[0135] In one embodiment, a computer program product is provided, including a computer program. When the computer program is executed by a processor, the steps in the foregoing method embodiments are implemented.

[0136] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, database, or other medium used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The databases involved in the embodiments provided in this application can include at least one of relational databases and non-relational databases. Non-relational databases can include distributed databases based on blockchain, etc., without limitation. The processors involved in the embodiments provided in this application can be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, data processing logics based on quantum computing, artificial intelligence (AI) processors, etc., without limitation.

[0137] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope recorded in this application.

[0138] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. A pipeline control method for a humidifying machine, characterized in that, The method includes: Obtaining a condensate discharge signal for the moisture regain machine heat exchange system; the moisture regain machine heat exchange system includes a steam input pipeline, a condensate recovery pipeline, a heat exchanger, and a pipeline switching valve group; a steam valve is provided in the steam input pipeline. Controlling the pipeline switching valve group to switch to the first state; in the first state, the steam input pipeline is communicated with the condensate recovery pipeline, and both the steam input pipeline and the condensate recovery pipeline are cut off from the heat exchanger. Controlling the steam valve to be adjusted from the closed state to the first opening degree at the first adjustment rate, so that the condensate in the steam input pipeline transitions from the static state to the flowing state and is discharged through the condensate recovery pipeline. When the pipeline temperature of the condensate recovery pipeline is greater than the first temperature threshold and less than the second temperature threshold, controlling the valve opening degree of the steam valve to be adjusted from the first opening degree to the second opening degree, and the second opening degree is greater than the first opening degree.

2. The method according to claim 1, wherein It further includes: When the pipeline temperature of the condensate recovery pipeline is not less than the second temperature threshold, controlling the pipeline switching valve group to switch to the second state; in the second state, the steam input pipeline is communicated with the heat exchange input pipeline of the heat exchanger, the heat exchange output pipeline of the heat exchanger is communicated with the condensate recovery pipeline, and the steam input pipeline is cut off from the condensate recovery pipeline. Controlling the valve opening degree of the steam valve to be adjusted from the second opening degree to the third opening degree, and the third opening degree is greater than the second opening degree.

3. The method according to claim 2, wherein The pipeline switching valve group includes: A first control valve, which is arranged between the steam input pipeline and the heat exchange input pipeline. A second control valve, which is arranged between the heat exchange output pipeline and the condensate recovery pipeline. A connecting pipeline, one end of the connecting pipeline is connected to the first control valve, and the other end of the connecting pipeline is connected to the second control valve. Wherein, when the pipeline switching valve group switches to the first state, the first control valve is in the first sub-state and the second control valve is in the second sub-state. When the first control valve is in the first sub-state, the steam input pipeline is communicated with the connecting pipeline, and the steam input pipeline is cut off from the heat exchange input pipeline. When the second control valve is in the second sub-state, the condensate recovery pipeline is communicated with the connecting pipeline, and the condensate recovery pipeline is cut off from the heat exchange output pipeline.

4. The method according to claim 3, wherein When the pipeline switching valve group switches to the second state, the first control valve is in the third sub-state and the second control valve is in the fourth sub-state. When the first control valve is in the third sub-state, the steam input pipeline is communicated with the heat exchange input pipeline, and the steam input pipeline is cut off from the connecting pipeline. When the second control valve is in the fourth sub-state, the condensate recovery pipeline is communicated with the heat exchange output pipeline, and the condensate recovery pipeline is cut off from the connecting pipeline.

5. The method according to claim 2, wherein A third control valve is provided in the heat exchange input pipeline; after the valve opening degree of the steam valve is adjusted from the second opening degree to the third opening degree, the following steps are further included: Obtain the first steam pressure in the steam input pipeline within the first preset time period; When the first steam pressure is within the first pressure range within the first preset time period, adjust the valve opening degree of the third control valve until the steam pressure in the heat exchange input pipeline reaches a preset pressure value; Obtain the second steam pressure in the heat exchange input pipeline within the second preset time period; When the second steam pressure is within the second pressure range within the second preset time period, adjust the valve opening degree of the third control valve to the fourth opening degree.

6. The method according to any one of claims 1-5, characterized in that, The pipeline switching valve group is further connected to a discharge pipeline; correspondingly, before controlling the pipeline switching valve group to be in the first state, the following steps are further included: Control the pipeline switching valve to switch to the third state; in the third state, the heat exchange output pipeline of the heat exchanger is connected to the discharge pipeline, so that the condensed water in the heat exchanger is discharged through the discharge pipeline.

7. A pipeline control device for a rehumidifier, characterized in that, The device includes: A first acquisition module, configured to acquire a condensed water discharge signal for the heat exchange system of the conditioning machine; the heat exchange system of the conditioning machine includes a steam input pipeline, a condensed water recovery pipeline, a heat exchanger, and a pipeline switching valve group; a steam valve is provided in the steam input pipeline; A first control module, configured to control the pipeline switching valve group to switch to the first state; in the first state, the steam input pipeline is communicated with the condensed water recovery pipeline, and both the steam input pipeline and the condensed water recovery pipeline are cut off from the heat exchanger; A second control module, configured to control the steam valve to be adjusted from the closed state to the first opening degree at the first adjustment rate, so that the condensed water in the steam input pipeline transitions from the static state to the flowing state and is discharged through the condensed water recovery pipeline; A third control module, configured to control the valve opening degree of the steam valve to be adjusted from the first opening degree to the second opening degree when the pipeline temperature of the condensed water recovery pipeline is greater than the first temperature threshold and less than the second temperature threshold, and the second opening degree is greater than the first opening degree.

8. A computer device, comprising a memory and a processor, the memory storing a computer program, characterized in that, When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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