CN-122015066-A - Novel clean steam generation device and control method thereof

CN122015066ACN 122015066 ACN122015066 ACN 122015066ACN-122015066-A

Abstract

The invention discloses a novel clean steam generating device and a control method thereof, wherein the novel clean steam generating device comprises a pretreatment filtering unit, a reverse osmosis purifying unit, an electric heating steam generating unit, a double heat exchange evaporating unit and a PLC control unit which are arranged in an outer shell, a water outlet of the pretreatment filtering unit is communicated with a water inlet of the reverse osmosis purifying unit in a sealing way through a pipeline, a purified water outlet of the reverse osmosis purifying unit is communicated with a purified water inlet of the double heat exchange evaporating unit in a sealing way through a pipeline, a primary steam outlet of the electric heating steam generating unit is communicated with a primary steam inlet of the double heat exchange evaporating unit in a sealing way through a pipeline, and a pure steam outlet of the double heat exchange evaporating unit is directly communicated to a steam utilization end through a pipeline.

Inventors

ZHAO HONGZHENG
ZHAO LIANG
YU JUAN

Assignees

舍默节能技术(镇江)有限公司

Dates

Publication Date: 20260512
Application Date: 20260330

Claims (10)

1. The novel clean steam generating device is characterized by comprising a pretreatment filtering unit, a reverse osmosis purifying unit, an electric heating steam generating unit, a double heat exchange evaporating unit and a PLC control unit which are arranged in an outer shell; The water outlet of the pretreatment filtering unit is communicated with the water inlet of the reverse osmosis purifying unit in a sealing way through a pipeline, and the purified water outlet of the reverse osmosis purifying unit is communicated with the purified water inlet of the double heat exchange evaporating unit in a sealing way through a pipeline; the primary steam outlet of the electric heating steam generation unit is communicated with the primary steam inlet of the double heat exchange evaporation unit in a sealing way through a pipeline, and the pure steam outlet of the double heat exchange evaporation unit is directly communicated to a steam utilization end through a pipeline; The PLC control unit is respectively and electrically connected with the pretreatment filtering unit, the reverse osmosis purification unit, the electric heating steam generation unit and the double heat exchange evaporation unit, so that full-automatic control of the device is realized.
2. The novel clean steam generating device according to claim 1, wherein the pretreatment filter unit is a multi-medium filter, the water inlet end and the water outlet end of the multi-medium filter are provided with pressure detection meters, and the multi-medium filter is internally provided with a differential pressure automatic alarm device; And the signal output end of the pressure difference automatic alarm device is in communication connection with the signal input end of the PLC control unit.
3. The novel clean steam generating device according to claim 1, wherein the double heat exchange evaporation unit is a double heat exchange structure of an external preheater and an evaporator which are independently and serially combined; The evaporator is internally and fixedly provided with a pressure sensor and a liquid level transmitter, and the pressure sensor and the signal output end of the liquid level transmitter are electrically connected with the PLC control unit.
4. The novel clean steam generating device according to claim 1, wherein the reverse osmosis purification unit is a deep purification structure formed by connecting a plurality of groups of reverse osmosis hosts in series from top to bottom, the input ends and the output ends of the reverse osmosis hosts are sequentially connected from top to bottom, and the output end of the reverse osmosis host at the lowest end is communicated with the purified water inlet of the double heat exchange evaporation unit in a sealing manner through a pipeline.
5. The novel clean steam generating device according to claim 1, wherein all pipelines, cavities and heat exchange components in direct contact with purified water and pure steam in the device are made of SUS304 stainless steel; The welding part of the pipeline and the device cylinder body is in sealing connection by adopting an inner argon protection full-automatic welding process and an outer argon protection full-automatic welding process.
6. The novel clean steam generating device according to claim 1, wherein the pretreatment filtering unit, the reverse osmosis purifying unit, the electric heating steam generating unit, the double heat exchange evaporating unit and the PLC control unit are all arranged on a bracket at the bottom in the outer shell, and the PLC control unit is provided with a remote signal transmission interface which can remotely transmit operating parameters of the device to an external control room.
7. The control method of a novel clean steam generator according to any one of claims 1 to 6, comprising the steps of: the raw water is primarily filtered by the pretreatment filtering unit and then is conveyed to the reverse osmosis purifying unit through a pipeline to prepare purified water; Pure water is pumped into a double heat exchange evaporation unit, and primary steam is introduced into the double heat exchange evaporation unit by an electric heating steam generation unit for heat exchange and heating; The PLC control unit adjusts the primary steam air inflow and the purified water inflow in real time according to the pressure signal and the liquid level signal of the double heat exchange evaporation unit, and realizes constant-pressure pure steam output.
8. The method of claim 7, wherein the purified water is heated and evaporated in the double heat exchange evaporation unit to form secondary steam, the secondary steam rises at a low speed in the evaporator, the impurity separation and purification are realized by the height of the evaporator cavity, and the purified pure steam is conveyed to the steam utilization end through the outlet.
9. The method of claim 7, wherein condensed water formed after primary steam heat exchange in the double heat exchange evaporation unit is settled to the bottom along the cavity of the double heat exchange evaporation unit and is discharged into the circulation loop through the condensation pipeline to realize recycling.
10. The method of claim 7, wherein the PLC collects pressure difference data of the multi-medium filter in real time, and when the pressure difference exceeds a preset threshold value, the pressure difference automatic alarm device is triggered, and early warning prompt or device protective shutdown operation is performed.

Description

Novel clean steam generation device and control method thereof Technical Field The invention belongs to the technical field of pure steam preparation, and particularly relates to a novel clean steam generation device and a control method thereof. Background In the fields of food production and processing, medical health and medical instrument production, steam is required to be directly contacted with materials and medical instruments for disinfection, sterilization, heating, drying and other processes, steam generated by a traditional industrial boiler contains pollutants such as boiler feed water chemicals, pipeline scale, rust and the like, so that food pollution and medical instrument infection risks are easily caused, and meanwhile, reactive pollutants can corrode equipment and shorten the service life of the instruments. The traditional gas steam boiler needs to be far away from a clean room, is limited by supervision, cannot be adapted to special scenes such as disaster areas and emergency, and has the problems of dead angle of a sanitary structure, poor sealing, easiness in pollution by low-sanitary-level media, low automation control level and the like, so that the requirements of high-sanitary standards and stable operation in the food, medical and pharmaceutical industries are difficult to meet, and therefore, the novel clean steam generating device and the control method thereof are provided. Disclosure of Invention The invention aims to provide a novel clean steam generating device and a control method thereof, so as to solve the problems in the background technology. The novel clean steam generating device comprises a pretreatment filtering unit, a reverse osmosis purifying unit, an electric heating steam generating unit, a double heat exchange evaporating unit and a PLC control unit which are arranged in an outer shell, wherein a water outlet of the pretreatment filtering unit is communicated with a water inlet of the reverse osmosis purifying unit in a sealing manner through a pipeline, a pure water outlet of the reverse osmosis purifying unit is communicated with a pure water inlet of the double heat exchange evaporating unit in a sealing manner through a pipeline, a primary steam outlet of the electric heating steam generating unit is communicated with a primary steam inlet of the double heat exchange evaporating unit in a sealing manner through a pipeline, a pure steam outlet of the double heat exchange evaporating unit is directly communicated to a steam utilization end through a pipeline, and the PLC control unit is respectively and electrically connected with the pretreatment filtering unit, the reverse osmosis purifying unit, the electric heating steam generating unit and the double heat exchange evaporating unit, so that full-automatic control of the device is realized. Preferably, the pretreatment filter unit is a multi-medium filter, the water inlet end and the water outlet end of the multi-medium filter are both provided with pressure detection meters, the multi-medium filter is internally provided with a differential pressure automatic alarm device, and the signal output end of the differential pressure automatic alarm device is in communication connection with the signal input end of the PLC control unit. The dual heat exchange evaporation unit is of a dual heat exchange structure formed by independently and serially combining an external preheater and an evaporator, wherein a pressure sensor and a liquid level transmitter are fixedly arranged in the evaporator, and signal output ends of the pressure sensor and the liquid level transmitter are electrically connected with the PLC control unit. Preferably, the reverse osmosis purification unit is a deep purification structure formed by connecting a plurality of groups of reverse osmosis hosts in series from top to bottom, the input ends and the output ends of the reverse osmosis hosts are sequentially connected from top to bottom, and the output end of the reverse osmosis host at the lowest end is communicated with the purified water inlet of the double heat exchange evaporation unit in a sealing way through a pipeline. Preferably, all pipelines, cavities and heat exchange parts in the device, which are in direct contact with purified water and pure steam, are made of SUS304 stainless steel materials, and the welding parts of the pipelines and the device cylinder are in sealing connection by adopting an inner argon and outer argon protection full-automatic welding process. Preferably, the pretreatment filtering unit, the reverse osmosis purifying unit, the electric heating steam generating unit, the double heat exchange evaporating unit and the PLC control unit are all arranged on a support at the bottom of the outer shell, and the PLC control unit is provided with a remote signal transmission interface, so that the operating parameters of the device can be remotely transmitted to an external control room. A control method of a no