Wastewater heat recovery apparatus monitoring system

Abstract

The present invention relates to a wastewater heat recovery apparatus monitoring system including a heat recovery apparatus and a monitoring apparatus. The heat recovery apparatus comprises: a settling filter unit that receives wastewater and settles sediment contained in the wastewater along a settling processing container; a heat-exchanging unit that receives the wastewater from which the sediment has been removed while passing through the settling filter unit, and simultaneously receives cold clean water, to perform heat exchange between the wastewater and the cold clean water to convert the cold clean water into hot clean water; a filtering unit installed between the settling filter unit and the heat-exchanging unit, for performing a first stage filtering of fine foreign substances contained in the wastewater that passes through the settling filter unit and a second stage filtering of fine foreign substances contained in the wastewater that passes through the heat-exchanging unit; and a heat recovery sensing unit that receives an input valve sensed by a connected wastewater pressure sensor, receives cold clean water temperature information sensed by a cold clean water temperature sensor, receives hot clean water temperature information sensed by a hot wastewater temperature sensor, and receives temperature information of a first wastewater sensed by a first wastewater temperature sensor; and receives temperature information of a second wastewater from a second wastewater temperature sensor. The monitoring apparatus is connected to the heat recovery apparatus through an information communication network to control and monitor the operating state of the heat recovery apparatus, to receive the pressure value, cold clean water temperature information, hot clean water temperature information, temperature information of the first wastewater, and temperature information of the second wastewater received from the heat recovery sensing unit, and to display an operating screen, the operating state, an alarm screen, a temperature graph, and a pressure graph of the heat recovery apparatus.

1 . A wastewater heat recovery apparatus monitoring system, comprising:
 a heat recovery apparatus that includes a settling filter unit that receives wastewater and settles   
       sediment contained in the wastewater using a settling process; a heat exchanging unit that receives the wastewater from which the sediment has been removed while passing through the settling filter unit, and simultaneously receives cold clean water, to perform heat exchange between the wastewater and the cold clean water to convert the cold clean water into hot clean water; a filtering unit installed between the settling filter unit and the heat-exchanging unit, for performing a first stage filtering of fine foreign substances contained in the wastewater that passes through the settling filter unit and a second stage filtering of fine foreign substances contained in the wastewater that passes through the heat-exchanging unit; and a heat recovery sensing unit that receives a pressure value sensed by a connected wastewater pressure sensor, receives cold clean water temperature information sensed by a cold clean water temperature sensor, receives hot clean water temperature information sensed by a hot wastewater temperature sensor, and receives temperature information of a first wastewater sensed by a first wastewater temperature sensor; and receives temperature information of a second wastewater from a second wastewater temperature sensor; and
 a monitoring apparatus that is connected to the heat recovery apparatus through an information communication network to control and monitor the operating state of the heat recovery apparatus, receives the pressure value, cold clean water temperature information, hot clean water temperature information, temperature information of the first wastewater, and temperature information of the second wastewater received from the heat recovery sensing unit, and displays an operating screen, the operating state, an alarm screen, a temperature graph, and a pressure graph of the heat recovery apparatus. 
 
     
     
         2 . The system according to  claim 1 , wherein the settling filter unit includes:
 a wastewater settling tank formed in a cone shape whose lower sectional area is less than upper sectional area;   a wastewater supply inlet that is included at an upper one side of the wastewater settling tank and with which the wastewater is supplied;   a wastewater discharge outlet that extends upward communicating with an top surface of the wastewater settling tank and discharges the wastewater from which sediment has been removed;   a sediment collection tank that is integrally formed in the lower portion of the wastewater settling tank and in which the sediment is settled and gathered; and   a sediment discharge outlet that extends downward communicating with the bottom surface of the sediment collection tank and includes a sediment discharge valve to discharge the sediment periodically.   
     
     
         3 . The system according to  claim 1 , wherein the heat exchanging unit includes:
 a wastewater supply space that includes a wastewater feeding entrance to be provided with the wastewater that passed through the settling filter unit;   a wastewater discharge space that communicates with the wastewater supply space through a plurality of pipes and includes a wastewater discharge opening to discharge the wastewater supplied to the wastewater supply space; and   a heat exchange space that includes a cold clean water feeding entrance and a hot clean water discharge opening so that the cold clean water flows on the surfaces of the plurality of the pipes and the cold clean water receives the heat of the wastewater to be a hot clean water.   
     
     
         4 . The system according to  claim 3 , wherein the heat exchanging unit includes: a wastewater backflow module that is connected to the wastewater feeding entrance and the wastewater discharge opening and mounted therebetween in order to make the wastewater fed to the wastewater feeding entrance and discharged through the wastewater discharge opening flow in the reverse direction, and
 wherein the system further comprises a wastewater discharge valve to discharge the wastewater flowing from the wastewater discharge opening while the filtering unit stops filtering in case that the wastewater reversely flows by the wastewater backflow module.   
     
     
         5 . The device according to  claim 1 , wherein the filtering unit includes: first and second filters that are installed apart each other; a first path switching module that alternatively switches any one of the first and second filters and transfers the wastewater that passed through the setting filter unit thereto; and a second path switching module that alternatively switches any one of the first and second filters and transfers the wastewater that passes through the heat exchanging unit thereto, and wherein in case that the first path switching module transfers the wastewater that passed through the settling filter unit to the first filter, the second path switching module transfers the wastewater that passes through the heat exchanging unit to the second filter, and in case that the first path switching module transfers the wastewater that passed through the settling filter unit to the second filter, the second path switching module transfers the wastewater that passed through the heat exchanging unit to the first filter. 
     
     
         6 . The device according to  claim 5 , further including a wastewater pressure sensor for sensing a supply pressure of the wastewater supplied to the settling filter unit, wherein in case that a pressure value sensed in the wastewater pressure sensor is higher than a reference region, the first path switching module switches to transfer the wastewater that passed through the settling filter unit to the second filter, and the second path switching module switches to transfer the wastewater that passed through the heat exchanging unit to the first filter, and in the case that a pressure value sensed in the wastewater pressure sensor is not higher than a reference region, the second path switching module transfers the wastewater that passed through the settling filter unit to the first filter, the second path switching module transfers the wastewater that passes through the heat exchanging unit to the second filter. 
     
     
         7 . The system according to  claim 6 , wherein an alarm is generated in case that the pressure value sensed in the wastewater pressure sensor is lower than a reference region. 
     
     
         8 . The system according to  claim 1 , further comprising:
 a cold clean water temperature sensor for sensing temperature of the cold clean water supplied to the heat exchanging unit;   a hot clean water temperature sensor for sensing temperature of the hot clean water whose heat was exchanged in the heat exchanging unit;   a first wastewater temperature sensor for sensing temperature of the wastewater supplied to the heat exchanging unit; and   a second wastewater temperature sensor for sensing temperature of the wastewater whose heat was exchanged in the heat temperature.   
     
     
         9 . The system according to  claim 1 , wherein the heat recovery sensing unit includes:
 a transmission module for transmitting pressure value, cold clean water temperature information, hot clean water temperature information, temperature information of the first wastewater, and temperature information of the second wastewater that are received from the wastewater pressure sensor, the cold clean water temperature sensor, the hot clean water temperature sensor, and the temperature sensors of the first and second wastewater, to a monitoring unit through the communication network, and receiving control signals for the settling filter unit, the heat exchanging unit, the filtering unit and the heat recovery sensing unit from the monitoring apparatus; and   a control module for controlling the settling filter unit, the heat exchanging unit, the filtering unit and the heat recovery sensing unit according to the control signals received from the transmission module.   
     
     
         10 . The system according to  claim 1 , wherein the monitoring apparatus includes:
 an operation screen display unit for displaying an operation screen, an operation state, an alarm screen, a temperature graph and a pressure graph of the heat recovery apparatus, and additionally displaying cold clean water temperature information, hot clean water temperature information and first and second wastewater temperature information transmitted from the heat recovery apparatus and a pressure value transmitted from the wastewater pressure sensor, and calorie obtained when the cold clean water changes to the hot clean water by comparing temperature values between the hot and cold clean water temperature sensors or the first and second wastewater temperature sensors; and   a heat recovery apparatus setting unit for displaying a pressure value applied from the wastewater pressure sensor and a pressure value input according to a key input signal of a user, controlling the wastewater pressure sensor to have an input value, and controlling the heat recovery apparatus by setting a sediment discharge outlet operating time in the heat recovery apparatus and transmitting the set control signal to the transmission module in the heat recovery sensing unit of the heat recovery apparatus to control the heat recovery apparatus.   
     
     
         11 . The system according to  claim 10 , wherein the heat recovery apparatus setting unit sets and controls an operation time of the heat exchanging unit in the heat recovery apparatus according to the set control signal and displays the operation time of the heat recovery unit, so as to circulate the wastewater in the forward or reverse direction in the set time. 
     
     
         12 . The system according to  claim 1 , wherein the monitoring apparatus includes:
 an alarm screen display unit for displaying, in case that elements in the settling filter unit, the heat exchanging unit, the filtering unit and the heat recovery sensing unit of the heat recovery apparatus do not operate the operations set in advance, state and time information of the elements;   a temperature graph generating unit for receiving temperature information sensed by the cold clean water temperature sensor, the hot clean water temperature sensor, the first wastewater temperature sensor and the second wastewater temperature sensor of the heat recovery apparatus, generating a time series transition curved graph and displaying the time series transition curved graph; and   a pressure graph generating unit for receiving pressure information sensed by the wastewater pressure sensor of the heat recovery apparatus and generating and displaying a transition curved graph using the pressure information.   
     
     
         13 . The system according to  claim 1  or  12 , wherein the monitoring apparatus Includes a data extraction/management unit for storing and managing in a database DB the pressure information sensed by the wastewater pressure sensor of the heat recovery apparatus, the calorie information obtained when the cold clean water changes to the hot clean water by comparing temperature values between the hot and cold clean water temperature sensors or the first and second wastewater temperature sensors, the temperature information transmitted to the temperature graph generating unit from the heat recovery apparatus, the pressure information transmitted to the pressure graph generating unit from the heat recovery apparatus, and flow-meter information transmitted from the valves of the heat recovery apparatus. 
     
     
         14 . The system according to  claim 1 , wherein the monitoring apparatus includes a language converter for converting the language of the operation screen, the operation state, the alarm screen, the temperature graph and the pressure graph of the heat recovery apparatus into one of Korean, Chinese and English and displaying the converted language.