CN212081331U - Commercial gas kitchen range waste heat recovery supplies dish washer hot water automatic control system - Google Patents
Commercial gas kitchen range waste heat recovery supplies dish washer hot water automatic control system Download PDFInfo
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- CN212081331U CN212081331U CN202020451748.4U CN202020451748U CN212081331U CN 212081331 U CN212081331 U CN 212081331U CN 202020451748 U CN202020451748 U CN 202020451748U CN 212081331 U CN212081331 U CN 212081331U
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Abstract
The utility model discloses a commercial gas kitchen range waste heat recovery supplies hot water automatic control system of dish washer, its control system includes that system parameter sets for, kitchen range start signal detects, temperature detection in the hot water storage tank, liquid level detection, circulation heat pump open and stop control, water supply valve on-off control, feed pump open and stop control in the hot water storage tank to make the hot water control system automation mechanized operation of a whole set of gas kitchen range waste heat recovery supplies dish washer. The control system of the utility model supplies hot water generated by preferentially utilizing waste heat to the dish washer, not only can save energy and reduce the consumption of conventional energy, but also can provide convenience for installing the dish washer for kitchens due to insufficient design of electric power or fuel gas; meanwhile, under the condition that the residual heat hot water is not used in the dishwasher, the residual heat hot water is supplemented to a kitchen, so that the conventional energy consumption of the kitchen is further reduced.
Description
Technical Field
The utility model relates to a kitchen cooking utensils economizer system field specifically is a commercial gas kitchen range waste heat recovery supplies dish washer hot water automatic control system.
Background
At present family, dining room or dining room use dish washer in a large number, dish washer need use a large amount of hot water to bowl dish washing at present, and this kind of hot water all adopts heat sources such as electrical heating or steam to heat, and large-scale dining room, dining room are with dish washer electrical heating power more than 30kW, need use a large amount of energy to prepare hot water for dish washer.
Meanwhile, gas cooking utensils (big cookers, stir-frying cookers and the like) are necessary to be equipped in kitchens, a plurality of existing cooking utensils, particularly large cooking utensils, are all matched with a flue gas waste heat recovery and utilization device, and the waste heat recovery type cooking stove exchanges heat with the waste heat recovery and utilization device through a cooking stove smoke exhaust pipe by utilizing flue gas waste heat generated by the cooking utensils to produce hot water and convert the flue gas heat into heat energy of water. The gas cooker and the dish washer have a sequence in use flow and time, the gas cooker (a large pot stove and a frying stove) is used before dining, and the dish washer is used after dining, so that hot water generated by the waste heat recovery type stove can be fully utilized as a hot water source of the dish washer, the generated hot water is used for the dish washer, energy can be saved, the consumption of conventional energy is reduced, convenience in installing the dish washer can be provided for a kitchen due to insufficient electric power or gas design, and redundant hot water can be supplied to other water consumption points in the kitchen after the kitchen for use.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a commercial gas cooking stove waste heat recovery supplies dish washer hot water automatic control system, with the hot water source of the hot water of surplus commercial gas cooking stove waste heat recovery production as the dish washer, reduce the consumption of the conventional energy (electric power, steam etc.) of dish washer, play energy-conserving effect.
In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:
the utility model provides a commercial gas kitchen range waste heat recovery supplies dish washer hot water automatic control system which characterized in that: including heat storage water tank, dish washer to and an at least waste heat recovery type kitchen range, wherein:
a smoke heat exchange pipeline and a smoke waste heat recovery device are respectively arranged in each waste heat recovery type stove, each smoke waste heat recovery device respectively comprises a heating water tank, the smoke heat exchange pipeline is arranged in the heating water tank to realize heat exchange of water in the heating water tank, the heating water tank is communicated with a cold water inlet pipe and a hot water outlet pipe, the cold water inlet pipe and the hot water outlet pipe are respectively provided with an electromagnetic valve or an electric valve, the cold water inlet pipe of the heating water tank in each waste heat recovery type stove is respectively communicated with a tap water inlet pipe, the hot water outlet pipe of the heating water tank in each waste heat recovery type stove is respectively communicated with the top of a heat storage water tank, and each hot water outlet pipe is respectively provided with a temperature sensor;
a liquid level sensor and a temperature sensor are arranged in the hot water storage tank, a water supply opening is formed in the lower portion of the hot water storage tank, the water supply opening is communicated with a hot water supply pipe, and a first water supply pump and a pressure sensor are arranged on the hot water supply pipe in a communicating mode; the lower part of the hot water storage tank is also provided with a circulation port which is communicated with a water outlet pipe, the water outlet pipe is communicated with and provided with a circulation heating pump and a pressure sensor, and the water outlet pipe is communicated with each heating water tank;
a water inlet electromagnetic valve or an electric valve is arranged at the water inlet of the dish washing machine, a hot water supply pipe of the hot water storage tank is communicated with the water inlet of the dish washing machine through the water inlet electromagnetic valve or the electric valve, and a temperature sensor is arranged in the dish washing machine;
the central control system is used for receiving data collected by the temperature sensors, the pressure sensors and the liquid level sensors, is electrically connected with the electromagnetic valves or the electric valves, the first water supply pump and the circulating heating pump, and controls the opening and closing of the electromagnetic valves or the electric valves and the opening and closing of the first water supply pump and the circulating heating pump.
A commercial gas kitchen range waste heat recovery supplies dishwasher hot water automatic control system, its characterized in that: the cold water inlet pipe of the heating water tank and the water outlet pipe connected with the hot water storage tank in each waste heat recovery type cooking stove are connected in parallel and communicated to a tap water inlet pipe, the tap water inlet pipe is communicated and provided with a water supplementing electromagnetic valve or an electric valve and a flowmeter, and the tap water inlet pipe is connected to an external tap water pipe network through the water supplementing electromagnetic valve or the electric valve and the flowmeter; the flowmeter, the water replenishing electromagnetic valve or the electric valve are respectively and electrically connected with the central control system, the central control system receives flowmeter data, and the central control system controls the opening and closing of the water replenishing electromagnetic valve or the electric valve.
A commercial gas kitchen range waste heat recovery supplies dishwasher hot water automatic control system, its characterized in that: the hot water outlet pipes of the heating water tanks in each waste heat recovery type cooking range are connected in parallel and communicated to a hot water main pipe, and the hot water main pipe is communicated to the top of the heat storage water tank.
A commercial gas kitchen range waste heat recovery supplies dishwasher hot water automatic control system, its characterized in that: the hot water storage tank is provided with a plurality of water supply ports at the lower part, each water supply port is respectively communicated with a hot water supply pipe, wherein a first water supply pump and a pressure sensor are communicated and installed on part of the hot water supply pipes, and the hot water supply pipes with the first water supply pumps and the pressure sensors are communicated with one or more dish washing machines in a one-to-one correspondence manner; the other hot water supply pipes are communicated with a second water supply pump and a pressure sensor, the hot water supply pipe with the second water supply pump and the pressure sensor is communicated to other kitchen water consumption points, and the second water supply pump and the corresponding pressure sensor are also electrically connected with the central control system.
A commercial gas kitchen range waste heat recovery supplies dishwasher hot water automatic control system, its characterized in that: the dishwasher is characterized in that at least one of a rinsing cylinder, a main washing cylinder and a preheating cylinder is arranged in the dishwasher, a water inlet electromagnetic valve or an electric valve is arranged at a water inlet of each cylinder, a hot water supply pipe of a hot water storage tank is communicated with at least one of the rinsing cylinder, the main washing cylinder and the preheating cylinder in the dishwasher through the water inlet electromagnetic valve or the electric valve, and a temperature sensor is arranged in at least one of the rinsing cylinder, the main washing cylinder and the preheating cylinder;
at least one of the rinsing cylinder, the main washing cylinder and the preheating cylinder of the dishwasher is internally provided with an auxiliary heat source, the auxiliary heat source is in a form including but not limited to electric heating and steam heating, and the central control system is in control connection with the auxiliary heat source.
A commercial gas kitchen range waste heat recovery supplies dishwasher hot water automatic control system, its characterized in that: the central control system is connected with a human-computer interface, and system parameters can be set through the human-computer interface; the central control system is also electrically connected with an ignition device of the waste heat recovery type stove, and the central control system detects and acquires a waste heat recovery type stove starting signal; meanwhile, the central control system detects the temperature of the waste heat recovery device according to the data of a temperature sensor on a hot water outlet pipe from the heating water tank to the heat storage water tank, the central control system detects the temperature in the heat storage water tank according to the data of a temperature sensor in the heat storage water tank, the central control system detects the liquid level in the heat storage water tank according to the data of a liquid level sensor in the heat storage water tank, and the central control system detects the internal pressure of a hot water supply pipe and the internal pressure of a water outlet pipe according to the data of a pressure sensor; and the central control system controls the start and stop of the circulating heating pump and each water supply pump and the start and stop of each electromagnetic valve or each electric valve based on each sensor data.
A commercial gas kitchen range waste heat recovery supplies dishwasher hot water automatic control system, its characterized in that: the combined heating mode of water jacking and circulating heating can be adopted, and the combined heating mode comprises the following three operation modes which can be disassembled: water-ejecting mode and circulating heating mode; automatically selecting operation according to the real-time working state;
setting parameters of the central control system, including but not limited to setting of water temperature at an outlet of the waste heat recovery device, setting of water temperature of the hot water storage tank, setting of high and low liquid levels of the hot water storage tank, setting of outlet pressure of the circulating heating pump, setting of outlet pressure of the water supply pump and setting of system operation time period; therefore, the system can be sensed and executed at the preset time node needing to execute the action;
after the parameters are set, the system automatically operates, and automatically heats and supplies hot water according to the working states of the waste heat recovery type stove and the dish-washing machine;
in the operation time period of the waste heat recovery type stove, the waste heat recovery system operates, and the system automatically heats hot water and stores the hot water in the hot water storage tank; in the operation time period of the dish washer, the water supply system is operated, and the system automatically supplies hot water to the dish washer;
in the operation period of the waste heat recovery type stove: when any stove operates, once the main gas fire valve is opened, an operation signal is output to the central control system, the central control system displays the operation state of the gas stove and enters the operation stage of the waste heat recovery system to detect and control the temperature of the heat storage water tank and the liquid level of the heat storage water tank; when all the stoves stop working, namely all the waste heat recovery type stove gas main fire valves are in a closed state, no working signal is output to the central control system, the central control system displays the running stop of the stoves, and the gas stove waste heat recovery system is in a standby state;
in the working process of the waste heat recovery type cooking range, the system continuously detects the liquid level and the temperature of the heat storage water tank and outputs a signal to the central control system, and the central control system automatically selects a circulating heating or water jacking mode according to the comparison judgment of the fed back liquid level and temperature of the heat storage water tank and the preset liquid level and temperature;
during the dishwasher run period: after the dish washer solenoid valve that intakes is opened, when water supply pressure controller pressure reduces to being less than the settlement low pressure value, give central control system with the signal feedback, central control system stops according to opening of the automatic first working shaft that judges of liquid level in the heat storage water tank, promptly: when the liquid level in the hot water storage tank is higher than the starting liquid level of the first water supply pump, starting the first water supply pump to supply hot water to the dish washing machine; when the liquid level in the hot water storage tank is lower than the starting liquid level of the first water supply pump, the first water supply pump does not work and is automatically switched to a tap water pipeline to supply water to the dish washing machine;
during the working process of the dishwasher, the temperature of a rinsing cylinder, a main washing cylinder or a pre-washing cylinder in the dishwasher is detected and judged in real time, namely: when the water supply temperature meets the use temperature of the dish-washing machine, the auxiliary heat source is not started; when the temperature of the water supply is lower than the using temperature of the dish washing machine, the auxiliary heat source is started to heat so as to ensure the normal operation of the dish washing machine.
A commercial gas kitchen range waste heat recovery supplies dishwasher hot water automatic control system, its characterized in that: when the waste heat recovery system is in operation: the start and stop of the circulation heating pump are detected and controlled according to the liquid level of the hot water storage tank, namely: when the liquid level value of the heat storage water tank is lower than the stop liquid level value of the circulating heating pump, the waste heat recovery system starts a water ejecting mode, and tap water is heated in real time through a waste heat recovery type stove and is conveyed into the heat storage water tank for storage; when the liquid level value of the hot water storage tank is higher than the stop liquid level value of the circulating heating pump, the waste heat recovery system starts the circulating heating mode to start the circulating heating pump, and the mode of increasing the temperature of the hot water storage tank is adopted to ensure that the water tank does not overflow, so that the waste of water resources is prevented;
when the water supply system is in operation: the water supply level value of the second water supply pump is higher than that of the first water supply pump, namely: when the detection liquid level of the hot water storage tank is higher than the water supply level value of the second water supply pump, the first water supply pump and the second water supply pump are simultaneously in a standby working state; when the detected liquid level of the hot water storage tank is higher than the water supply level value of the first water supply pump and lower than the water supply level value of the second water supply pump, the first water supply pump is in a standby working state, and the second water supply pump can not be started; when the detection liquid level of the hot water storage tank is lower than the water supply level value of the first water supply pump, the first water supply pump and the second water supply pump can not be started.
A commercial gas kitchen range waste heat recovery supplies dishwasher hot water automatic control system, its characterized in that: the central control system can set N operation time intervals according to requirements, wherein N is more than or equal to 1, the system is in an input standby state in each operation time interval, and the system is in a stop state outside the operation time intervals.
The automatic control system of the utility model carries out centralized recovery, storage and supply to hot water recovered by the waste heat of one or more commercial gas stoves; the automatic operation and switching are controlled by the liquid level in the water tank and the pressure on the pipeline, and the water is supplied to a dish washer and other water points in a kitchen.
The utility model discloses an automatic control system can realize following mesh: the waste heat of the flue gas of the gas stove is fully utilized; storing and supplying hot water in the hot water storage tank; waste caused by overflow of full water of the hot water storage tank is avoided; the abnormal operation of the dish washer caused by the water shortage of the hot water storage tank is avoided.
The utility model discloses an automatic control system controls waste heat recovery hot water supply dish washer, can the energy saving, reduces the consumption of conventional energy, also can provide the installation dish washer facility for the kitchen because of electric power or gas design are not enough.
Drawings
Fig. 1 is a schematic diagram of the structure of the automatic control system of the present invention.
Fig. 2 is a flow chart of the automatic control system of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, a commercial gas stove waste heat recovery supplying dishwasher hot water automatic control system comprises a heat storage water tank 4, a dishwasher 18, and at least one waste heat recovery type stove 1, wherein:
a flue gas heat exchange pipeline 3 and a flue gas waste heat recovery device 2 are respectively arranged in each waste heat recovery type stove 1, each flue gas waste heat recovery device 2 respectively comprises a heating water tank, each flue gas heat exchange pipeline 3 is arranged in each heating water tank to realize heat exchange of water in the heating water tank, each heating water tank is communicated with a cold water inlet pipe and a hot water outlet pipe, each cold water inlet pipe and each hot water outlet pipe are respectively provided with an electromagnetic valve or an electric valve 6, the cold water inlet pipe of each heating water tank in each waste heat recovery type stove 1 is respectively communicated with a tap water inlet pipe, the hot water outlet pipe of each heating water tank in each waste heat recovery type stove 1 is respectively communicated with the top of a heat storage water tank 4, and each hot water outlet pipe is respectively provided with a temperature;
a liquid level sensor H and a temperature sensor T1 are arranged in the hot water storage tank 4, a water supply port is arranged at the lower part of the hot water storage tank 4, the water supply port is communicated with a hot water supply pipe, and a first water supply pump 11 and a pressure sensor P1 are communicated and arranged on the hot water supply pipe; the lower part of the hot water storage tank 4 is also provided with a circulation port which is communicated with a water outlet pipe, the water outlet pipe is communicated with and provided with a circulation heating pump 8 and a pressure sensor P2, and the water outlet pipe is communicated with each heating water tank;
a water inlet electromagnetic valve or an electric valve 17 is arranged at the water inlet of the dish washing machine 18, a hot water supply pipe of the hot water storage tank 4 is communicated with the water inlet of the dish washing machine 18 through the water inlet electromagnetic valve or the electric valve, and a temperature sensor T2 is arranged in the dish washing machine 18;
the system further comprises a central control system 7, temperature sensors T1, T2, T3, pressure sensors P1, P2 and P3, wherein the liquid level sensors H are respectively electrically connected to the central control system 7, the central control system 7 receives data collected by the temperature sensors, the pressure sensors and the liquid level sensors, the central control system 7 is also respectively electrically connected with electromagnetic valves or electric valves, the first water supply pump 11 and the circulating heating pump 8, and the central control system 7 controls the opening and closing of the electromagnetic valves or the electric valves 6 and 17 and the starting and stopping of the first water supply pump 11 and the circulating heating pump 8.
The cold water inlet pipe of the heating water tank and the water outlet pipe connected with the hot water storage tank in each waste heat recovery type cooking stove 1 are connected in parallel and communicated to a tap water inlet pipe, the tap water inlet pipe is communicated with and provided with a water supplementing electromagnetic valve or an electric valve 5 and a flowmeter 10, and the tap water inlet pipe is connected to an external tap water pipe network through the water supplementing electromagnetic valve or the electric valve 5 and the flowmeter 10; the flowmeter 10 and the water replenishing electromagnetic valve or the electric valve 5 are respectively and electrically connected with the central control system 7, the central control system 7 receives data of the flowmeter 10, and the central control system 7 controls the opening and closing of the water replenishing electromagnetic valve or the electric valve 5.
The hot water outlet pipes of the heating water tanks in each waste heat recovery type cooking range 1 are connected in parallel and communicated to a hot water main pipe, and the hot water main pipe is communicated to the top of the heat storage water tank 4.
A plurality of water supply ports are arranged at the lower part of the hot water storage tank 4, each water supply port is respectively communicated with a hot water supply pipe, a first water supply pump 11 and a pressure sensor P1 are arranged on part of the hot water supply pipes in a communication mode, and the hot water supply pipes with the first water supply pumps 11 and the pressure sensors P1 are communicated with one or more dish washing machines 18 in a one-to-one correspondence mode; the other hot water supply pipes are communicated with and provided with a second water supply pump 13 and a pressure sensor P3, a hot water supply pipe with the second water supply pump 13 and a pressure sensor P3 is communicated with other kitchen water points, and the pressure sensor P3 and the second water supply pump 13 are also electrically connected with the central control system 7.
The dishwasher 18 internally comprises at least one of a rinsing cylinder 16, a main washing cylinder 15 and a preheating cylinder, a water inlet electromagnetic valve or an electric valve 17 is arranged at the water inlet of each cylinder, a hot water supply pipe of the hot water storage tank 4 is communicated with at least one of the rinsing cylinder 16, the main washing cylinder 15 and the preheating cylinder in the dishwasher through the water inlet electromagnetic valve or the electric valve 17, and a temperature sensor T2 is arranged in at least one of the rinsing cylinder 16, the main washing cylinder 15 and the preheating cylinder;
at least one of the rinsing tub 16, the main washing tub 15 and the preheating tub of the dishwasher 18 is internally provided with an auxiliary heat source in the form of, but not limited to, electric heating, steam heating, and the central control system 7 is in control connection with the auxiliary heat source.
The central control system 7 is connected with a human-computer interface, and system parameters can be set through the human-computer interface; the central control system 7 is also electrically connected with an ignition device of the waste heat recovery type stove, and the central control system detects and acquires a waste heat recovery type stove starting signal; meanwhile, the central control system 7 detects the temperature of the waste heat recovery device according to the data of a temperature sensor T3 from the heating water tank to a hot water outlet pipe of the hot water storage tank 4, the central control system 7 detects the temperature in the hot water storage tank 4 according to the data of a temperature sensor T1 in the hot water storage tank 4, the central control system 7 detects the liquid level in the hot water storage tank 4 according to the data of a liquid level sensor H in the hot water storage tank 4, and the central control system 7 detects the internal pressure of a hot water supply pipe and a water outlet pipe according to the data of pressure sensors P1, P2 and P3; the central control system 7 controls the start and stop of the circulation heating pump 8, the water supply pumps 11 and 13, and the start and stop of the solenoid valves or the solenoid valves 5, 6 and 17 based on the sensor data.
The utility model discloses can adopt the joint heating mode of water-logging and circulation heating, it contains and can disassemble for following three kinds of operational modes: water-ejecting mode and circulating heating mode; automatically selecting operation according to the real-time working state;
setting parameters of the central control system, including but not limited to setting of water temperature at an outlet of the waste heat recovery device, setting of water temperature of the hot water storage tank, setting of high and low liquid levels of the hot water storage tank, setting of outlet pressure of the circulating heating pump, setting of outlet pressure of the water supply pump and setting of system operation time period; therefore, the system can be sensed and executed at the preset time node needing to execute the action;
after the parameters are set, the system automatically operates, and automatically heats and supplies hot water according to the working states of the waste heat recovery type stove and the dish-washing machine;
in the operation time period of the waste heat recovery type stove, the waste heat recovery system operates, and the system automatically heats hot water and stores the hot water in the hot water storage tank; in the operation time period of the dish washer, the water supply system is operated, and the system automatically supplies hot water to the dish washer;
in the operation period of the waste heat recovery type stove: when any stove operates, once the main gas fire valve is opened, an operation signal is output to the central control system, the central control system displays the operation state of the gas stove and enters the operation stage of the waste heat recovery system to detect and control the temperature of the heat storage water tank and the liquid level of the heat storage water tank; when all the stoves stop working, namely all the waste heat recovery type stove gas main fire valves are in a closed state, no working signal is output to the central control system, the central control system displays the running stop of the stoves, and the gas stove waste heat recovery system is in a standby state;
in the working process of the waste heat recovery type cooking range, the system continuously detects the liquid level and the temperature of the heat storage water tank and outputs a signal to the central control system, and the central control system automatically selects a circulating heating or water jacking mode according to the comparison judgment of the fed back liquid level and temperature of the heat storage water tank and the preset liquid level and temperature;
during the dishwasher run period: after the dish washer solenoid valve that intakes is opened, when water supply pressure controller pressure reduces to being less than the settlement low pressure value, give central control system with the signal feedback, central control system stops according to opening of the automatic first working shaft that judges of liquid level in the heat storage water tank, promptly: when the liquid level in the hot water storage tank is higher than the starting liquid level of the first water supply pump, starting the first water supply pump to supply hot water to the dish washing machine; when the liquid level in the hot water storage tank is lower than the starting liquid level of the first water supply pump, the first water supply pump does not work and is automatically switched to a tap water pipeline to supply water to the dish washing machine;
during the working process of the dishwasher, the temperature of a rinsing cylinder, a main washing cylinder or a pre-washing cylinder in the dishwasher is detected and judged in real time, namely: when the water supply temperature meets the use temperature of the dish-washing machine, the auxiliary heat source is not started; when the temperature of the water supply is lower than the using temperature of the dish washing machine, the auxiliary heat source is started to heat so as to ensure the normal operation of the dish washing machine.
The utility model discloses in, when the waste heat recovery system operation: the start and stop of the circulation heating pump are detected and controlled according to the liquid level of the hot water storage tank, namely: when the liquid level value of the heat storage water tank is lower than the stop liquid level value of the circulating heating pump, the waste heat recovery system starts a water ejecting mode, and tap water is heated in real time through a waste heat recovery type stove and is conveyed into the heat storage water tank for storage; when the liquid level value of the hot water storage tank is higher than the stop liquid level value of the circulating heating pump, the waste heat recovery system starts the circulating heating mode to start the circulating heating pump, and the mode of increasing the temperature of the hot water storage tank is adopted to ensure that the water tank does not overflow, so that the waste of water resources is prevented;
when the water supply system is in operation: the water supply level value of the second water supply pump is higher than that of the first water supply pump, namely: when the detection liquid level of the hot water storage tank is higher than the water supply level value of the second water supply pump, the first water supply pump and the second water supply pump are simultaneously in a standby working state; when the detected liquid level of the hot water storage tank is higher than the water supply level value of the first water supply pump and lower than the water supply level value of the second water supply pump, the first water supply pump is in a standby working state, and the second water supply pump can not be started; when the detection liquid level of the hot water storage tank is lower than the water supply level value of the first water supply pump, the first water supply pump and the second water supply pump can not be started.
The utility model discloses a central control system 7 can set for a N operation period as required, and N more than or equal to 1, system are in to drop into standby state in every operation period, and the system is in the stop state outside the operation period.
In the utility model, each commercial gas stove 1 is provided with a flue gas waste heat recovery device 2, and the flue gas waste heat recovery device 2 comprises a heating water tank and a temperature sensor T3; the heating water tank is connected with a cold water inlet pipe and a hot water outlet pipe, and each cold water inlet pipe and each hot water outlet pipe can be provided with an electromagnetic valve or an electric valve 6; a liquid level sensor H and a temperature sensor T1 are arranged in the hot water storage tank 4; the hot water outlet of the hot water storage tank 4 is provided with pressure sensors P1, P2 and P3;
the central control system comprises system parameter setting, waste heat recovery type stove starting signal detection, waste heat recovery device temperature detection, temperature detection in the heat storage water tank, liquid level detection in the heat storage water tank, start-stop control of the circulating heating pump 8, on-off control of the tap water replenishing valve 5 and start-stop control of the water supply pumps (11 and 13);
the cold water inlet pipes of the waste heat recovery type cooking ranges are connected to a tap water inlet pipe in a correlation mode, and a water supplementing electromagnetic valve or a water supplementing electric valve 5 is installed at the front end of the tap water inlet pipe; hot water outlet pipes of all the waste heat recovery type cooking ranges are connected in parallel to a hot water main pipe, and the hot water main pipe is connected to the hot water storage tank 4; the lower end of the hot water storage tank 4 is connected with a circulating water outlet pipe, and the circulating water outlet pipe and the cold water inlet pipe of the waste heat recovery type stove are connected in parallel to be connected with a tap water inlet pipe; a circulating heating pump 8 is arranged on the circulating water outlet pipe; the lower end of the hot water storage tank 4 is connected with a water supply pipe, and a first water supply pump 11 and a second water supply pump 13 are installed on the water supply pipe; the first water supply pump 11 is connected with the dishwasher 18, and the second water supply pump 13 is connected with other water points in the kitchen;
the utility model also provides a control system of operation process.
(1) When any commercial gas stove 1 is started, a switching signal of the main fire valve 3 is sent to the central control system, and the waste heat recovery system enters a working state.
(2) The waste heat recovery system automatically selects a water jacking mode or a circulating heating mode according to the change of the liquid level H in the hot water storage tank;
(3) when all the commercial gas stoves 1 stop working (i.e. the main fire valve 3 is fully closed), the waste heat recovery system delays for a certain time to stop working.
(4) When the dishwasher starts to work, the water supply system of the dishwasher is automatically started according to the change of the water supply pipe pressure controller P1;
(5) when the liquid level of the hot water storage tank is enough, the central control system 7 controls the starting of the water supply pump 11, and hot water in the hot water storage tank is supplied to the dish washing machine for use through the water supply pump; simultaneously detecting whether the temperature of a temperature sensor T2 in the dish washer meets the temperature requirement of the dish washer; if yes, the auxiliary heat source of the dishwasher is not started; if not, automatically starting an auxiliary heat source of the dishwasher to heat the hot water;
(6) when the liquid level of the hot water storage tank is insufficient, the central control system 7 does not start the water supply pump 11, and the water supply of the dish washing machine is automatically switched into tap water supply at the moment; simultaneously detecting whether the temperature of a temperature sensor T2 in the dish washer meets the temperature requirement of the dish washer; if yes, the auxiliary heat source of the dishwasher is not started; if not, automatically starting an auxiliary heat source of the dishwasher to heat the hot water;
(7) when other water in the kitchen needs to use hot water, the central control system 7 automatically judges according to the change of the water supply pressure pipe pressure controller P3 and the liquid level value in the hot water storage tank, and controls the start or stop of the water supply 13;
referring to fig. 2, the present invention discloses a signal control flow chart of an automatic control system.
When the waste heat recovery system is started, entering a working stage (S100) of the waste heat recovery system; the stove power is turned on (S200); opening a main air valve (S300), and judging the temperature of the heat exchange device (S400); if the temperature of the heat exchange device (S400) is judged to be yes, the electromagnetic valve of the heat exchange device is opened (S5002), if the temperature of the heat exchange device (S400) is judged to be no, the electromagnetic valve of the heat exchange device is closed (S5001); after the electromagnetic valve of the heat exchange device is opened (S5002), the liquid level of the hot water storage tank is entered (S600) and the two states are judged; when the liquid level of the hot water storage tank is lower than the starting liquid level of the circulating pump (S7001), a tap water electromagnetic valve is opened (S8001); when the liquid level of the heat storage water tank is equal to or higher than the starting liquid level of the circulating pump (S7002), starting the circulating heating pump (S8002); when the heat exchanger solenoid valve is closed (S5001), the tap water solenoid valve is closed (S9001), and the circulation heating pump is stopped (S9002);
and circularly detecting until the operation of the waste heat recovery system is finished within the set time period.
Entering a water supply system working stage when a dishwasher water supply system is started) (R100); the method comprises the following steps that two states are set, namely a dishwasher working state (R2001) and a kitchen other water consumption point working state (R2002);
when the dishwasher is started (R2001), judging the water supply pressure P2 of the dishwasher (R3001); when P2 is lower than the set value (R4001), entering the hot water storage tank liquid level judgment (S600); when P2 is higher than the set value (R4002), the dishwasher water supply pump stops working (R5001); when the dishwasher supply water pressure P2 is lower than the set value (R4001), the hot water tank level is determined to have two states: when the hot water storage tank liquid level is higher than the P2 start liquid level (R7002), the dishwasher water supply pump is started (R8002); when the liquid level of the hot water storage tank is lower than the starting liquid level P2 (R7003), the water supply pump of the dishwasher stops working (R8004);
when other water points of the kitchen are started (R2002), judging other water point pressure P3 (R3002); when P3 is lower than the set value (R4003), entering the hot water storage tank liquid level judgment (S600); when P3 is higher than the set value (R4004), the other water supply pumps stop not operating (R5002); when the water supply pressure P3 at other water consumption points in the kitchen is lower than the set value (R4003), the liquid level of the hot water storage tank is judged to have two states: when the liquid level of the hot water storage tank is higher than the starting liquid level P3 (R7001), the other water point water supply pumps are started (R8001); when the liquid level of the hot water storage tank is lower than the starting liquid level P3 (R7002), the other water using point water supply pumps stop not working (R8003);
and the detection is circulated until the set time period for the operation of the water supply system is finished.
And in the system operation period, the central control system executes central control by means of the control mode.
The embodiments of the present invention are only descriptions of the preferred embodiments of the present invention, not right the present invention is designed and limited, without departing from the design concept of the present invention, the technical personnel in the field should fall into the protection scope of the present invention for various modifications and improvements made by the technical solution of the present invention, and the technical contents of the present invention are all recorded in the claims.
Claims (9)
1. The utility model provides a commercial gas kitchen range waste heat recovery supplies dish washer hot water automatic control system which characterized in that: including heat storage water tank, dish washer to and an at least waste heat recovery type kitchen range, wherein:
a smoke heat exchange pipeline and a smoke waste heat recovery device are respectively arranged in each waste heat recovery type stove, each smoke waste heat recovery device respectively comprises a heating water tank, the smoke heat exchange pipeline is arranged in the heating water tank to realize heat exchange of water in the heating water tank, the heating water tank is communicated with a cold water inlet pipe and a hot water outlet pipe, the cold water inlet pipe and the hot water outlet pipe are respectively provided with an electromagnetic valve or an electric valve, the cold water inlet pipe of the heating water tank in each waste heat recovery type stove is respectively communicated with a tap water inlet pipe, the hot water outlet pipe of the heating water tank in each waste heat recovery type stove is respectively communicated with the top of a heat storage water tank, and each hot water outlet pipe is respectively provided with a temperature sensor;
a liquid level sensor and a temperature sensor are arranged in the hot water storage tank, a water supply opening is formed in the lower portion of the hot water storage tank, the water supply opening is communicated with a hot water supply pipe, and a first water supply pump and a pressure sensor are arranged on the hot water supply pipe in a communicating mode; the lower part of the hot water storage tank is also provided with a circulation port which is communicated with a water outlet pipe, the water outlet pipe is communicated with and provided with a circulation heating pump and a pressure sensor, and the water outlet pipe is communicated with each heating water tank;
a water inlet electromagnetic valve or an electric valve is arranged at the water inlet of the dish washing machine, a hot water supply pipe of the hot water storage tank is communicated with the water inlet of the dish washing machine through the water inlet electromagnetic valve or the electric valve, and a temperature sensor is arranged in the dish washing machine;
the central control system is used for receiving data collected by the temperature sensors, the pressure sensors and the liquid level sensors, is electrically connected with the electromagnetic valves or the electric valves, the first water supply pump and the circulating heating pump, and controls the opening and closing of the electromagnetic valves or the electric valves and the opening and closing of the first water supply pump and the circulating heating pump.
2. A commercial gas stove waste heat recovery supplying dishwasher hot water automatic control system as claimed in claim 1, characterized in that: the cold water inlet pipe of the heating water tank and the water outlet pipe connected with the hot water storage tank in each waste heat recovery type cooking stove are connected in parallel and communicated to a tap water inlet pipe, the tap water inlet pipe is communicated and provided with a water supplementing electromagnetic valve or an electric valve and a flowmeter, and the tap water inlet pipe is connected to an external tap water pipe network through the water supplementing electromagnetic valve or the electric valve and the flowmeter; the flowmeter, the water replenishing electromagnetic valve or the electric valve are respectively and electrically connected with the central control system, the central control system receives flowmeter data, and the central control system controls the opening and closing of the water replenishing electromagnetic valve or the electric valve.
3. A commercial gas stove waste heat recovery supplying dishwasher hot water automatic control system as claimed in claim 1, characterized in that: the hot water outlet pipes of the heating water tanks in each waste heat recovery type cooking range are connected in parallel and communicated to a hot water main pipe, and the hot water main pipe is communicated to the top of the heat storage water tank.
4. A commercial gas stove waste heat recovery supplying dishwasher hot water automatic control system as claimed in claim 1, characterized in that: the hot water storage tank is provided with a plurality of water supply ports at the lower part, each water supply port is respectively communicated with a hot water supply pipe, wherein a first water supply pump and a pressure sensor are communicated and installed on part of the hot water supply pipes, and the hot water supply pipes with the first water supply pumps and the pressure sensors are communicated with one or more dish washing machines in a one-to-one correspondence manner; the other hot water supply pipes are communicated with a second water supply pump and a pressure sensor, the hot water supply pipe with the second water supply pump and the pressure sensor is communicated to other kitchen water consumption points, and the second water supply pump and the corresponding pressure sensor are also electrically connected with the central control system.
5. A commercial gas stove waste heat recovery supplying dishwasher hot water automatic control system as claimed in claim 1, characterized in that: the dishwasher is characterized in that at least one of a rinsing cylinder, a main washing cylinder and a preheating cylinder is arranged in the dishwasher, a water inlet electromagnetic valve or an electric valve is arranged at a water inlet of each cylinder, a hot water supply pipe of a hot water storage tank is communicated with at least one of the rinsing cylinder, the main washing cylinder and the preheating cylinder in the dishwasher through the water inlet electromagnetic valve or the electric valve, and a temperature sensor is arranged in at least one of the rinsing cylinder, the main washing cylinder and the preheating cylinder;
at least one of the rinsing cylinder, the main washing cylinder and the preheating cylinder of the dishwasher is internally provided with an auxiliary heat source, the auxiliary heat source is in a form including but not limited to electric heating and steam heating, and the central control system is in control connection with the auxiliary heat source.
6. A commercial gas stove waste heat recovery supplying dishwasher hot water automatic control system as claimed in claim 1, characterized in that: the central control system is connected with a human-computer interface, and system parameters can be set through the human-computer interface; the central control system is also electrically connected with an ignition device of the waste heat recovery type stove, and the central control system detects and acquires a waste heat recovery type stove starting signal; meanwhile, the central control system detects the temperature of the waste heat recovery device according to the data of a temperature sensor on a hot water outlet pipe from the heating water tank to the heat storage water tank, the central control system detects the temperature in the heat storage water tank according to the data of a temperature sensor in the heat storage water tank, the central control system detects the liquid level in the heat storage water tank according to the data of a liquid level sensor in the heat storage water tank, and the central control system detects the internal pressure of a hot water supply pipe and the internal pressure of a water outlet pipe according to the data of a pressure sensor; and the central control system controls the start and stop of the circulating heating pump and each water supply pump and the start and stop of each electromagnetic valve or each electric valve based on each sensor data.
7. An automatic control system for hot water of a commercial gas stove waste heat recovery supply dishwasher as claimed in any one of claims 1 to 6, characterized in that: the combined heating mode of water jacking and circulating heating can be adopted, and the combined heating mode comprises the following three operation modes which can be disassembled: water-ejecting mode and circulating heating mode; automatically selecting operation according to the real-time working state;
setting parameters of the central control system, including but not limited to setting of water temperature at an outlet of the waste heat recovery device, setting of water temperature of the hot water storage tank, setting of high and low liquid levels of the hot water storage tank, setting of outlet pressure of the circulating heating pump, setting of outlet pressure of the water supply pump and setting of system operation time period; therefore, the system can be sensed and executed at the preset time node needing to execute the action;
after the parameters are set, the system automatically operates, and automatically heats and supplies hot water according to the working states of the waste heat recovery type stove and the dish-washing machine;
in the operation time period of the waste heat recovery type stove, the waste heat recovery system operates, and the system automatically heats hot water and stores the hot water in the hot water storage tank; in the operation time period of the dish washer, the water supply system is operated, and the system automatically supplies hot water to the dish washer;
in the operation period of the waste heat recovery type stove: when any stove operates, once the main gas fire valve is opened, an operation signal is output to the central control system, the central control system displays the operation state of the gas stove and enters the operation stage of the waste heat recovery system to detect and control the temperature of the heat storage water tank and the liquid level of the heat storage water tank; when all the stoves stop working, namely all the waste heat recovery type stove gas main fire valves are in a closed state, no working signal is output to the central control system, the central control system displays the running stop of the stoves, and the gas stove waste heat recovery system is in a standby state;
in the working process of the waste heat recovery type cooking range, the system continuously detects the liquid level and the temperature of the heat storage water tank and outputs a signal to the central control system, and the central control system automatically selects a circulating heating or water jacking mode according to the comparison judgment of the fed back liquid level and temperature of the heat storage water tank and the preset liquid level and temperature;
during the dishwasher run period: after the dish washer solenoid valve that intakes is opened, when water supply pressure controller pressure reduces to being less than the settlement low pressure value, give central control system with the signal feedback, central control system stops according to opening of the automatic first working shaft that judges of liquid level in the heat storage water tank, promptly: when the liquid level in the hot water storage tank is higher than the starting liquid level of the first water supply pump, starting the first water supply pump to supply hot water to the dish washing machine; when the liquid level in the hot water storage tank is lower than the starting liquid level of the first water supply pump, the first water supply pump does not work and is automatically switched to a tap water pipeline to supply water to the dish washing machine;
during the working process of the dishwasher, the temperature of a rinsing cylinder, a main washing cylinder or a pre-washing cylinder in the dishwasher is detected and judged in real time, namely: when the water supply temperature meets the use temperature of the dish-washing machine, the auxiliary heat source is not started; when the temperature of the water supply is lower than the using temperature of the dish washing machine, the auxiliary heat source is started to heat so as to ensure the normal operation of the dish washing machine.
8. An automatic control system for hot water of a commercial gas stove waste heat recovery supply dishwasher as claimed in any one of claims 1 to 6, characterized in that: when the waste heat recovery system is in operation: the start and stop of the circulation heating pump are detected and controlled according to the liquid level of the hot water storage tank, namely: when the liquid level value of the heat storage water tank is lower than the stop liquid level value of the circulating heating pump, the waste heat recovery system starts a water ejecting mode, and tap water is heated in real time through a waste heat recovery type stove and is conveyed into the heat storage water tank for storage; when the liquid level value of the hot water storage tank is higher than the stop liquid level value of the circulating heating pump, the waste heat recovery system starts the circulating heating mode to start the circulating heating pump, and the mode of increasing the temperature of the hot water storage tank is adopted to ensure that the water tank does not overflow, so that the waste of water resources is prevented;
when the water supply system is in operation: the water supply level value of the second water supply pump is higher than that of the first water supply pump, namely: when the detection liquid level of the hot water storage tank is higher than the water supply level value of the second water supply pump, the first water supply pump and the second water supply pump are simultaneously in a standby working state; when the detected liquid level of the hot water storage tank is higher than the water supply level value of the first water supply pump and lower than the water supply level value of the second water supply pump, the first water supply pump is in a standby working state, and the second water supply pump can not be started; when the detection liquid level of the hot water storage tank is lower than the water supply level value of the first water supply pump, the first water supply pump and the second water supply pump can not be started.
9. An automatic control system for hot water of a commercial gas stove waste heat recovery supply dishwasher as claimed in any one of claims 1 to 6, characterized in that: the central control system can set N operation time intervals according to requirements, wherein N is more than or equal to 1, the system is in an input standby state in each operation time interval, and the system is in a stop state outside the operation time intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020451748.4U CN212081331U (en) | 2020-04-01 | 2020-04-01 | Commercial gas kitchen range waste heat recovery supplies dish washer hot water automatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020451748.4U CN212081331U (en) | 2020-04-01 | 2020-04-01 | Commercial gas kitchen range waste heat recovery supplies dish washer hot water automatic control system |
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| Publication Number | Publication Date |
|---|---|
| CN212081331U true CN212081331U (en) | 2020-12-04 |
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|---|---|---|---|
| CN202020451748.4U Active CN212081331U (en) | 2020-04-01 | 2020-04-01 | Commercial gas kitchen range waste heat recovery supplies dish washer hot water automatic control system |
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| Country | Link |
|---|---|
| CN (1) | CN212081331U (en) |
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2020
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