Dehumidification dryer device without switching control signals of cleaning valve

Abstract

The utility model relates to a dehumidification dryer device without switching cleaning valve control signals, which comprises a drying loop, the drying loop comprises a drying charging barrel, a drying filter, a cooler, a drying fan, a moisture absorption barrel and a drying heating pipe, the inlet of the drying filter is connected with the drying charging barrel, and the outlet of the drying filter is connected with the cooler. An inlet of the drying fan is connected with the cooler, an outlet of the drying fan is connected with the moisture absorption barrel, an inlet of the drying heating pipe is connected with the moisture absorption barrel, and an outlet of the drying heating pipe is connected with the drying material barrel. According to the dehumidification dryer device without switching the control signal of the cleaning valve, a signal line does not need to be arranged between the electromagnetic valve of the material cleaning device and the control panel of the conveying device, and the wiring cost is reduced. Signal switching is not needed when a material conveying pipeline or a conveying device is switched, and the possibility of operation and operation errors of field operation personnel is reduced. As no signal line needs to be configured, even if manufacturers of the on-site drying machine and the conveying device are not unified, cooperative use can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of dehumidification dryers, in particular to the field of material cleaning valve devices, and specifically refers to a dehumidification dryer device without switching cleaning valve control signals. Background Art

[0002] The bottom of the drying barrel of the dehumidifying dryer is generally equipped with a material cleaning valve device to prevent the material from remaining in the pipeline and causing poor molding. The material cleaning solenoid valve is connected to the control panel of the corresponding material conveying device through a signal line for control. For situations where the conveying distance is long and the material conveying pipeline and conveying device need to be switched frequently, the corresponding signal line also needs to be switched accordingly when the material pipeline or conveying device is switched, and the wiring cost of the signal line is high when the conveying distance is long. The use defects of the existing technology are:

[0003] 1) A signal line needs to be configured between the solenoid valve of the material cleaning device and the control panel of the conveying device, which results in high wiring costs.

[0004] 2) When the material conveying pipeline or conveying device is switched, the corresponding solenoid valve signal line also needs to be switched, which increases the workload of on-site operators and is prone to switching errors.

[0005] 3) When the on-site dryer and conveying device manufacturers are not unified, the signal line connectors or aviation plugs may be of different models, resulting in practical operation difficulties. Utility Model Content

[0006] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a dehumidification dryer device which has simple structure, low cost and wide application range and does not require switching of purge valve control signals.

[0007] In order to achieve the above-mentioned purpose, the dehumidification dryer device of the utility model without switching the purge valve control signal is as follows:

[0008] The dehumidification dryer device that does not require switching of the purge valve control signal has the following main features: the device includes a drying circuit, the drying circuit includes a drying barrel, a drying filter, a cooler, a drying fan, a moisture absorption barrel and a drying heating tube, the inlet of the drying filter is connected to the drying barrel, the outlet of the drying filter is connected to the cooler, the inlet of the drying fan is connected to the cooler, the outlet of the drying fan is connected to the moisture absorption barrel, the inlet of the drying heating tube is connected to the moisture absorption barrel, and the outlet of the drying heating tube is connected to the drying barrel.

[0009] Preferably, the device also includes a regeneration circuit, the regeneration circuit includes the desiccant cylinder, the desiccant cylinder also includes a regeneration filter, a regeneration fan, a heat exchange device and a regeneration heating pipe, the outlet of the regeneration filter is connected to the inlet of the regeneration fan, the outlet of the regeneration fan is connected to the cooler, the inlet of the heat exchange device is connected to the cooler, the outlet of the heat exchange device is connected to the regeneration heating pipe, and the regeneration heating pipe is connected to the desiccant cylinder.

[0010] Preferably, the device further comprises a cleaning device and a sensor, wherein the cleaning device is connected to the drying barrel, the cleaning device has a cleaning valve, and the sensor is installed on the air supply pipe of the cleaning valve.

[0011] Preferably, the device further comprises a secondary side hopper and a conveying device, the inlet of the secondary side hopper is connected to a cleaning device, and the conveying device is connected to the secondary side hopper.

[0012] Preferably, the device further comprises a conveying filter and a conveying fan, the outlet of the drying cylinder is connected to the conveying filter, and the outlet of the conveying filter is connected to the conveying fan.

[0013] Preferably, the device filters dust in the dry return air through a dry filter, the air cooler reduces the dry return air temperature, the dry fan serves as a power source, the moisture absorption cylinder absorbs moisture in the dry air to obtain low dew point dry air, the dry heating tube heats the dry air, the dry barrel heats and dries the plastic particles, and the air coming out of the dry barrel is circulated, dehumidified and heated to dry the plastic particles.

[0014] Preferably, the device uses a regeneration fan as the power source of the drying circuit, the regeneration filter filters dust in the air, the heat exchange device recycles part of the regeneration exhaust heat, the regeneration heating tube heats the regeneration air, and the moisture absorbed in the dehumidification core is blown out by the high-temperature regeneration air.

[0015] The dehumidification dryer device of the utility model that does not require switching of the cleaning valve control signal does not require a signal line to be configured between the material cleaning device solenoid valve and the conveying device control panel, thereby reducing wiring and reducing costs. No signal switching is required when switching the material conveying pipeline or the conveying device, thereby reducing the possibility of operation and operation errors by on-site operators. Since there is no need to configure a signal line, even if the on-site dryer and conveying device manufacturers are not unified, they can be used together. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structural working process diagram of the dehumidification dryer device of the utility model which does not require switching of the purge valve control signal.

[0017] Figure 2 This is an opening and closing timing diagram of the dehumidification dryer device of the utility model that does not require switching of the purge valve control signal.

[0018] Reference numerals:

[0019] 1 Drying barrel

[0020] 2 Filter drier

[0021] 3 Cooler

[0022] 4 Drying fan

[0023] 5. Desiccant tube

[0024] 6 Drying heating tube

[0025] 7 Regeneration filter

[0026] 8 Regeneration fan

[0027] 9 Heat exchange device

[0028] 10 Regeneration heating tube

[0029] 11 Cleaning device

[0030] 12 Sensors

[0031] 13 Filters

[0032] 14 Secondary side hopper

[0033] 15 Conveying device

[0034] 16 Conveyor filter

[0035] 17 Conveying fan

[0036] 18 Suction tube DETAILED DESCRIPTION

[0037] In order to more clearly describe the technical content of the present invention, further description is given below in conjunction with specific embodiments.

[0038] The utility model discloses a dehumidifying dryer device which does not need to switch the cleaning valve control signal, which includes a drying circuit, and the drying circuit includes a drying barrel, a drying filter, a cooler, a drying fan, a moisture absorption barrel and a drying heating pipe. The inlet of the drying filter is connected to the drying barrel, the outlet of the drying filter is connected to the cooler, the inlet of the drying fan is connected to the cooler, the outlet of the drying fan is connected to the moisture absorption barrel, the inlet of the drying heating pipe is connected to the moisture absorption barrel, and the outlet of the drying heating pipe is connected to the drying barrel.

[0039] As a preferred embodiment of the utility model, the device also includes a regeneration circuit, the regeneration circuit includes the desiccant cylinder, the desiccant cylinder also includes a regeneration filter, a regeneration fan, a heat exchange device and a regeneration heating pipe, the outlet of the regeneration filter is connected to the inlet of the regeneration fan, the outlet of the regeneration fan is connected to the cooler, the inlet of the heat exchange device is connected to the cooler, the outlet of the heat exchange device is connected to the regeneration heating pipe, and the regeneration heating pipe is connected to the desiccant cylinder.

[0040] As a preferred embodiment of the utility model, the device further comprises a cleaning device and a sensor, the cleaning device is connected to the drying barrel, the cleaning device has a cleaning valve, and the sensor is installed on the air supply pipe of the cleaning valve.

[0041] As a preferred embodiment of the utility model, the device further comprises a secondary side hopper and a conveying device, the inlet of the secondary side hopper is connected to the cleaning device, and the conveying device is connected to the secondary side hopper.

[0042] As a preferred embodiment of the utility model, the device further comprises a conveying filter and a conveying fan, the outlet of the drying cylinder is connected to the conveying filter, and the outlet of the conveying filter is connected to the conveying fan.

[0043] As a preferred embodiment of the utility model, the device filters the dust in the dry return air through the dry filter, the air cooler reduces the dry return air temperature, the dry fan serves as a power source, the moisture absorption cylinder absorbs the moisture in the dry air to obtain low dew point dry air, the dry heating tube heats the dry air, the dry barrel heats and dries the plastic particles, and the air coming out of the dry barrel is circulated, dehumidified and heated to dry the plastic particles.

[0044] As a preferred embodiment of the utility model, the device uses a regeneration fan as a power source for a drying circuit, the regeneration filter filters dust in the air, the heat exchange device recycles and utilizes part of the regeneration exhaust heat, the regeneration heating pipe heats the regeneration air, and the moisture absorbed in the dehumidification core is blown out by the high-temperature regeneration air.

[0045] In the specific implementation of the utility model, the device is a high-performance, low-energy consumption dehumidification dryer that does not require signal switching for the purge valve device control. The dehumidification dryer monitors the drying and regeneration cycle devices in real time, automatically adjusts the fan frequency and other setting parameters according to the actual drying capacity, and achieves energy saving by adjusting the air volume and temperature.

[0046] like Figure 1As shown in the figure, the drying circuit of the dehumidifying dryer takes the drying fan as the power source and the drying barrel as the starting point. The drying air passes through the following path: drying barrel → drying filter (filtering dust in the drying return air) → air cooler (lowering the drying return air temperature to protect the drying fan and obtain better drying effect) → drying fan (power source) → moisture absorption barrel (absorbing moisture in the drying air to obtain low dew point dry air) → drying heating tube (heating the drying air) → drying barrel to heat and dry the plastic particles. The air coming out of the drying barrel is dehumidified and heated in this cycle to dry the plastic particles.

[0047] The regeneration circuit of the dehumidifier dryer uses the regeneration fan as the power source, regeneration filter (filters dust in the air) → regeneration fan (power source) → cooler → heat exchange device (recycles part of the regeneration exhaust heat) → regeneration heating tube (heats the regeneration air) → dehumidification cylinder, and the moisture absorbed in the dehumidification cylinder core is blown out by the high-temperature regeneration air.

[0048] By installing a sensor on the purge valve air supply pipeline, the conveying device starts when the conveying hopper is empty. After the conveying device is started, the sensor detects the air flow in the pipeline. When the flow reaches the set value, the purge valve opens. After the purge valve opening time reaches the set time, the valve closes and enters the pipeline cleaning stage. After the conveying device reaches the set time, the cleaning ends and the conveying device stops running. The conveying hopper enters the full cup confirmation. When the hopper is full, the conveying process ends. When the conveying hopper is empty again, it enters the next conveying cycle and the cycle continues. (See the attached timing diagram for details). The opening of the purge device valve is controlled by a sensor. There is no need to configure a signal line between the purge device solenoid valve and the conveying device control panel, which reduces wiring and reduces costs while reducing the possibility of operation and operation errors by on-site operators.

[0049] The specific implementation scheme of this embodiment can refer to the relevant description in the above embodiment, which will not be repeated here.

[0050] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0051] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" refers to at least two.

[0052] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] The dehumidification dryer device of the utility model that does not require switching of the cleaning valve control signal does not require a signal line to be configured between the material cleaning device solenoid valve and the conveying device control panel, thereby reducing wiring and reducing costs. No signal switching is required when switching the material conveying pipeline or the conveying device, thereby reducing the possibility of operation and operation errors by on-site operators. Since there is no need to configure a signal line, even if the on-site dryer and conveying device manufacturers are not unified, they can be used together.

[0054] In this specification, the utility model has been described with reference to its specific embodiments. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the utility model. Therefore, the description and drawings should be regarded as illustrative rather than restrictive.

Claims

1. A dehumidification dryer device without switching a purge valve control signal, characterized in that: The device comprises a drying circuit, which comprises a drying cylinder, a drying filter, a cooler, a drying fan, a moisture absorption cylinder and a drying heating tube. The inlet of the drying filter is connected to the drying cylinder, the outlet of the drying filter is connected to the cooler, the inlet of the drying fan is connected to the cooler, the outlet of the drying fan is connected to the moisture absorption cylinder, the inlet of the drying heating tube is connected to the moisture absorption cylinder, and the outlet of the drying heating tube is connected to the drying cylinder.

2. The dehumidification dryer device without switching the purge valve control signal according to claim 1, characterized in that: The device also includes a regeneration circuit, which includes the desiccant cylinder, which also includes a regeneration filter, a regeneration fan, a heat exchange device and a regeneration heating pipe. The outlet of the regeneration filter is connected to the inlet of the regeneration fan, the outlet of the regeneration fan is connected to a cooler, the inlet of the heat exchange device is connected to a cooler, the outlet of the heat exchange device is connected to the regeneration heating pipe, and the regeneration heating pipe is connected to the desiccant cylinder.

3. The dehumidification dryer device without switching the purge valve control signal according to claim 1, characterized in that: The device also includes a cleaning device and a sensor. The cleaning device is connected to the drying barrel. The cleaning device has a cleaning valve. The sensor is installed on the air supply pipeline of the cleaning valve.

4. The dehumidification dryer device without switching the purge valve control signal according to claim 3, characterized in that: The device also includes a secondary side hopper and a conveying device. The inlet of the secondary side hopper is connected to the cleaning device, and the conveying device is connected to the secondary side hopper.

5. The dehumidification dryer device without switching the purge valve control signal according to claim 1, characterized in that: The device also includes a conveying filter and a conveying fan. The outlet of the drying barrel is connected to the conveying filter, and the outlet of the conveying filter is connected to the conveying fan.

6. The dehumidification dryer device without switching the purge valve control signal according to claim 1, characterized in that: The device filters dust in dry return air through a dry filter, the cooler reduces the temperature of dry return air, the dry fan serves as a power source, the moisture absorption cylinder absorbs moisture in the dry air to obtain low dew point dry air, the dry heating tube heats the dry air, the dry barrel heats and dries the plastic particles, and the air coming out of the dry barrel is circulated, dehumidified and heated to dry the plastic particles.

7. The dehumidification dryer device without switching the purge valve control signal according to claim 2, characterized in that: The device uses a regeneration fan as a power source for a drying circuit, a regeneration filter filters dust in the air, the heat exchange device recycles part of the regeneration exhaust heat, the regeneration heating pipe heats the regeneration air, and the moisture absorbed in the dehumidification cylinder core is blown out by the high-temperature regeneration air.

Images