1088 results about "Hot water storage tank" patented technology

A combination water and coffee dispenser includes a hollow housing having an interior chamber. A water supply line extends from a domestic water source into the interior chamber for supplying fresh water to a cold water storage tank, a hot water storage tank and possibly to a raw water dispensing nozzle on the exterior of the housing. A liquid coffee concentrate storage container is received within the interior chamber and is in liquid communication with a pump. A discharge tube extends from the pump to a mixing chamber. Hot water is routed from the hot water storage tank to the mixing chamber wherein the hot water is mixed with liquid coffee concentrate to produce coffee having a predetermined concentration. The pump speed and thus the concentration of coffee produced in the mixing chamber is controlled by a potentiometer. The device is also equipped with a chilled compartment for storing refrigerated liquid coffee concentrate formulations.

The invention discloses a compressed air energy storage system, which comprises a compressor unit, a pre-expansion device, a turbine expansion machine, an intermediate cooler, an electric motor, a power generator, a hot water storage tank and a cold water storage tank, wherein the system utilizes electric energy which is not used up in the user electricity consumption valley period or wind power station power generation peak period for driving the compressor unit to work, the air at the normal pressure is compressed to high pressure, in addition, the part of air with rich pressure energy is stored into a high-pressure-resistance hole, in addition, the stored high-pressure air is released in the user electric consumption peak period or the wind power field generation valley period, an expansion unit is pushed to apply work, and the electric energy is output. The air pre-expansion device is additionally arranged at an outlet of an air storage chamber, so the air inlet pressure of the air turbine expansion machine is stable, the work stability of a power generation system is enhanced, low-temperature air at an outlet of the pre-expansion device is utilized for cooling hot water from the hot water storage tank, the temperature of the low-temperature air is raised through absorption of heat from the hot water, and the cooled water enters the cold water storage tank. The compressed air energy storage system is provided with the hot water storage tank and the cold water storage tank, the water is cyclically utilized in a closed loop, the water is not consumed, in addition, the heat discharged by the compressor is fully utilized and conveyed back to the high-pressure air at the outlet of the pre-expansion device. The high-pressure air at the outlet of the pre-expansion device is recovered through a heat recovering device (HRH).

The object of the present invention is to provide a compact lightweight heat pump hot-water supply system. The hot-water supply system heats water through heat exchange between high-temperature refrigerant of a heat pump circuit and water of a water circulating circuit. The system is an instantaneous water heater unit for instantaneously heating, at a water heat exchanger, water supplied through a water supply pipe and supplying hot water to a using end unit. In this system, therefore, large-capacity hot-water storage tank in conventional systems is no longer needed. Sufficient heat of condensation to heat water can not be produced, because pressure conditions of the heat pump circuit is not stabilized just after the start of operation. Therefore, during a short period of rising time, hot water stored in a hot-water supply tank and water from the water heat exchanger are mixed and the mixture is supplied to keep the hot water at a preset temperature. It is, therefore, possible to downsize the hot-water supply tank.

The cooling-heating air-conditioning hot water three-purpose machine is characterized by that on the original air-conditioner a countercurrent water-cooling heat exchanger and a three-way two-position reversing electromagnetic valve formed from electromagnetic auxiliary valve and pneuamtic main valve are added, and two energy-saving water-heating control modes of refrigeration mode and heating mode are increased, and a double-loop two-way throttle mechanism also can be adopted or the spiral coil tube-in-tube water-cooling heat-exchanger can be pdlaced in the hot water storage tank, so that said invented three-purpose machine can be used throughout the year, and possesses several functions of refrigeration, heating and providing cold and hot water.

The supply-and-demand control apparatus (100) includes: an obtaining unit (201g) that obtains power consumption and heat consumption; a forecast processing unit (201h) that obtains demand forecast data on each of electric power and an amount of heat using the power consumption and heat consumption, respectively; a supply-and-demand planning unit (200) that calculates a control parameter (the fourth and fifth columns in FIG. 7) for controlling operations of an electricity storage system (102) and a heat pump (104) that supplies heat to a hot water storage tank (105), by substituting the calculated demand forecast data into a predetermined function; and a supply-and-demand control unit (204) that controls the operations using the control parameter, wherein the supply-and-demand planning unit (200) calculates the control parameter such that electric power generated by a solar power system (101) is distributed to the electricity storage system (102) and the heat pump (104).

A hot-water supply system heats water through heat exchange between high-temperature refrigerant of a heat pump circuit and water of a water circulating circuit. The system is an instantaneous water heater unit for instantaneously heating, at a water heat exchanger, water supplied through a water supply pipe and supplying hot water to a using end unit. Therefore, a large-capacity hot-water storage tank is not needed. Sufficient heat of condensation to heat water can not be produced, because pressure conditions of the heat pump circuit is not stabilized just after the start of operation. Therefore, during a short period of rising time, hot water stored in a hot-water supply tank and water from the water heat exchanger are mixed and the mixture is supplied to keep the hot water at a preset temperature. Therefore, it is possible to use a smaller hot-water supply tank.

The invention provides a forced-convention heat transfer experimental device for a strong inner heat source containing porous medium passage. The device mainly comprises a water storage tank, a cooler, a surge tank, a filter, a preheater, a pebble bed experimental section, a vapor-water separator, a condensing cooler, a water return tank, a cooling water tank and a cooling tower which are connected through pipelines, wherein an electromagnetic inductor is arranged outside the pebble bed experimental section; a circulating water pump is arranged between the cooler and the filter; a cooling water pump is arranged among the cooling water tank, the condensing cooler and the cooler; valves or measuring instruments are arranged on related positions of the pipelines; and the measuring instrumentis connected with a data collection system. By adopting proper technology and reasonable design, the device realize simultaneous heating on all metal balls in the porous medium passage to ensure thatthe passage becomes a strong inner heat source containing porous medium passage, so that the heating condition of the pebble bed water-cooled reactor passage can be truly simulated.

The invention relates to a shower, heating and air conditioning complex system device for producing hot water by using solar energy, air source and low power. The device is formed by grafting and compounding a solar water heating system, a shower system, a floor heating system and an auxiliary heating system, and is provided with a control system; the auxiliary heating system is formed by grafting and compounding an air source pump and an air conditioner; in a steam compression refrigeration system of the air conditioner, a third heat exchanger which takes water as a heat exchange medium and one of a first heat exchanger and a second heat exchanger which takes air as the heat exchange medium in the system are connected with each other in parallel by using a pair of tee joints and two pairs of electromagnetic valves; and the third heat exchanger is provided with a temperature controller, is connected with a solar hot water storage tank by using a water inlet pipe and a water outlet pipe in a sealing way, and is connected with a hot water pump and an electromagnetic valve. The device has the advantages of saving electricity by 70 percent compared with an electric heater and saving a host compared with a special air-source heat pump, can be used for heating in winter and used for conditioning air in summer, recovers waste heat discharged from an original outdoor unit for producing hot water used for shower without reducing an energy efficiency ratio, acquires two gains by using one part of power, saves energy and reduces emission.

The invention relates to a multiple water tank solar-heat pump composite hot water system and a control method thereof. The system is provided with two to five parallel hot water storage tanks; an electromagnetic valve is arranged on a water supply / return main pipe of each hot water storage tank; an electromagnetic valve is also arranged on a water inlet / outlet branch pipe; the bottom of each hot water storage tank is provided with a temperature sensor; a hot water connecting pipe enters from the bottom of each hot water storage tank and comes out from the upper part of the hot water storage tank; the hot water storage tanks are connected in series by the hot water connecting pipes. A water supply / return pipe of a solar heat collector near one end of a cold water inlet is connected with the water supply / return main pipe of the parallel hot water storage tank; a supply / return water pipe of a heat pump in the other end of the water inlet is connected with the water supply / return main pipe of the parallel hot water storage tank. The system is provided with heat charge by the heat pump, solar energy and combination of the solar energy and the heat pump; according to the weather condition, the multiple water tank-heat pump composite hot water system automatically selects a heating mode, makes full use of solar energy and off-peak electricity and has the advantages of flexible control, low operating cost, etc.

The invention relates to an electric water heater with a heating water tank, which consists of the heating water tank, a water storage tank, a water inlet pipe, a water outlet pipe, a water pump, a controller, a display, a shell and a bottom plate. The heating water tank is specially used for heating water which flows through the heating water tank; the heating water tank can be arranged in the water storage tank and can also be arranged outside the water storage tank; two paths of water enter the heating water tank; when the electric water heater is matched with the water pump to work, one water heater only needs one heating water tank and one group of electric heating pipes and the rapid heating and preheating are both carried out by the group of electric heating pipes; and when the water pump is not used, besides the heating water tank, more than one special electric heating pipes for preheating can be arranged.

The invention relates to a novel geothermal energy solar central air conditioner system and belongs to the technical field of central air conditioning systems, in particular to a high-efficient and energy-saving device for refrigerating or supplying heat for a green environmental protection area. The device comprises a solar thermal collector, a hot water storage tank, a water tank valve, a ground tube valve, a circulating water pump, a ground tube heat collecting system, a heat exchanger, and a floor radiation or fan coil. A ground source heat pump uses energy of normal-temperature soil on shallow ground or ground temperature in water source as a low-grade heat energy resource. The system is suitable for houses and commercial buildings, and is the energy-saving technology with sustainable development. The system realizes heat transmission to ground heat sources by using flowing of a cyclic medium in a closed ground pipe. The system adopts solar energy as auxiliary heat sources. The solar thermal collector is preferentially used for colleting heat when sunshine is sufficient. The heat pump system can be designed with smaller load, and thus, the initial investment of the ground source heat pump can be greatly reduced.

An object is to provide a refrigerating apparatus which eliminates a disadvantage that a refrigerant circuit is overloaded and which can safely be operated. The refrigerating apparatus includes a control unit which starts the operation of a refrigerant compressor of the refrigerant circuit in response to an operation signal and which regulates an expansion valve so that the temperature of a refrigerant in a water heat exchanger becomes +80° C. or more and so that the temperature of the refrigerant in an evaporator becomes 0° C. or less. The control unit detects a state of a case where a cold storage amount in an ice cold storage tank of an ice cold storage unit reaches a predetermined amount or more and a state of a case where the control unit judges that a hot water storage tank is full of hot water, after the elapse of a predetermined time from the start of the operation of the compressor, and stops the operation of the compressor when one of the states is satisfied.

There is disclosed a highly efficient cooling device which can reduce energy consumption, and the cooling device comprises: a refrigeration cycle circuit including a compressor, a radiator, an expansion valve and an evaporator; a cooling container in which a cooling object is stored; and a hot water storage tank which stores hot water. Moreover, the cooling object in the cooling container is cooled by absorption of heat in the evaporator, water is boiled by release of the heat in the radiator to store the hot water in the hot water storage tank, and the hot water in the hot water storage tank can be supplied into the cooling container.

A hot water storage tank (3) and a circulating path (12) coupled to the hot water storage tank (3) are provided. An operation is possible wherein low-temperature water, let out from a lower part of the hot water storage tank (3) and entering the circulating path (12), is heated and boiled up by a heat pump heating source for forwarding to an upper part of the hot water storage tank (3). A refrigerant circulating circuit of the heat pump heating source is provided with a defrost circuit (38) for supplying hot gas from a compressor (25) to an air heat exchanger (28). It is possible to perform a defrost operation for providing a supply of hot gas to the air heat exchanger (28), with a water circulation pump (13) of the circulating path (12) held in abeyance. The water circulation pump (13) is made active if the defrost operation has been continued for not less than a predetermined time period since the start thereof.

An object is to provide a heating tank capable of highly efficiently heating a target to be heated and having high safety and reliability, and a hot water storage tank. The heating tank in which the target to be heated is stored and which heats the target to be heated by a circulated refrigerant of a heat pump, for example, the hot water storage tank which is heated by the circulated refrigerant of the heat pump to produce hot water in the tank includes a heat exchanger in which a wall surface of a tank main body is partially secured to peripheral edge portions and inner portions of two metal plates and in which non-secured portions swell to constitute a refrigerant passage closed except an inlet and an outlet. A thickness dimension of one metal plate is set to be larger than that of the other metal plate, and the one metal plate is arranged on the inner side of the other metal plate.

A cogeneration system includes a first cooling device disposed in a cooling water circulation path extending between an engine and a waste-heat heat exchanger, and a second cooling device disposed in a hot water circulation pipe extending between a hot water storage tank and a hot air heater. The first cooling device is activated to cool cooling water when the temperature of hot water stored in the hot water storage tank exceeds a first predetermined value, and the second cooling device is activated to cool the hot water when the temperature of hot air inside the hot air heater exceeds a second predetermined value.

A water tower applied to the water source heat pump central air conditioner is provided, and includes a tower body, a water storage tank, an air distributing device, cooling fillers, a water distributing device, a water collector, and ventilating equipment, wherein the water storage tank is arranged at the bottom of the interior of the tower body, and the air distributing device, the cooling fillers, the water distributing device, the water collector and the ventilating equipment are sequentially arranged above the water storage tank. Furthermore, the water tower applied to the water source heat pump central air conditioner includes a plurality of return water pipes and a plurality of supply pipes; the water inlet ends of the multiple return water pipes are in connection with the return water outlets of a plurality of air conditioner main units, arranged in all storeys correspondingly.

The invention discloses an air-conditioner condensate water recovery device. The air-conditioner condensate water recovery device comprises an air-conditioner outdoor unit and an air-conditioner indoor unit, a condenser and a refrigeration device are arranged on the air-conditioner outdoor unit, the refrigeration device comprises a first water storage tank, a main drainage pipe and branch refrigeration water pipes, and refrigeration sheets are arranged on the branch refrigeration water pipes; a fan is arranged on the rear portion of the refrigeration device; an overflow pipe and a first solenoid valve are arranged on the lower portion of the main drainage pipe; an atomization device is arranged on the side face of the air-conditioner indoor unit, and the atomization device comprises a second water storage tank, an atomization tank and a water pump; a filter screen layer, an activated carbon layer, a PP cotton layer and a filter water storage cavity are sequentially arranged inside the second water storage tank from top to bottom; an ultrasonic atomizer and a venturi tube are arranged in the atomization tank; and a plastic threaded pipe is arranged on the upper portion of the atomization tank. The air-conditioner condensate water recovery device can collect condensate water, refrigeration cold contained in the condensate water can be fully used for cooling the air-conditioner outdoor unit, and indoor air can be humidified through the collected condensate water.

A hot water storage tank having a capacity of approximately a quart to a gallon for a sink, a tub or the like is constructed of an insulated (fiber or vacuum) metal or plastic container including connections to a hot water influent pipe and an effluent pipe to the hot water faucet. This apparatus would eliminate the problem of wasting the cold water from the hot water faucet while waiting for the water to heat up.

An energy efficient laundry facility comprises a space heating system, an air conditioning system, a plurality of clothes washers, a plurality of clothes dryers, a hot water storage tank supplying the washers, a source of cold water and conduit means interconnecting the aforesaid. Dedicated heat recovery units are associated respectively with the dryers and employ high temperature dryer exhaust air to heat water for supply to the storage tank. A controller and temperature sensing means regulate the flow of hot water from the dryers to the storage tank. High temperature water is directed to the top of the storage tank and lower temperature water to an intermediate point in the storage tank. Hot water from the dryers is also directed to the space heating system. Each heat recovery unit comprises a heat exchanger, a blower, a water circulation pump, a water temperature sensor, and a dedicated controller. The controller may also include a dryer exhaust pressure monitor, a pressure controller, and a variable speed blower drive. The heat exchanger is of the counterflow type and each recovery unit has its heat exchanger and blower arranged to provide for right angle air flow resulting in a compact unit for mounting atop a clothes dryer. Hot water may also be drawn from the storage tank for use in either an air or hydronic space heating system.

A water tempering system comprising a mixing tank located downstream from the main hot water storage tank, the mixing tank receiving a supply of hot water at a first temperature and a supply of cold water, the hot water and cold water supplies mixing within the mixing tank to provide a source of tempered hot water at a reduced, second temperature that is discharged from the mixing tank for distribution and use within an overall system. The amount of cold water directed to the mixing tank is controlled by a variable frequency drive pump which can adjust depending on system demands to ensure that sufficient cold water is directed to the mixing tank to ensure adequate mixing occurs to bring the temperature of the hot water to the second reduced temperature even during periods of low demand.

A water heater is safe because the hot water supply temperature detection sensor can detect the fault even if it fails, so the user will not be scalded. It includes: a heat source that heats tap water or water stored in a hot water storage tank to a set temperature; a hot water supply flow sensor that detects the amount of hot water supplied from the above heat source or hot water storage tank; The water supply temperature detection thermistor is used to detect the temperature of the hot water supply; the control device controls the heating amount of the heat source according to the temperature of the hot water supply detected by the hot water supply temperature detection thermistor. A microcomputer is provided which detects the hot water supply flow rate sensor when the hot water supply volume exceeds a prescribed amount (2 liters per minute), and continues the detection by the hot water supply temperature detection thermistor for a prescribed time (10 seconds). If the temperature is lower than the specified temperature (55°C), it is determined that the hot water supply temperature detection thermistor is abnormal.

The invention discloses a system and a method for recycling waste heat of bath sewage by utilizing an absorption heat pump. The system comprises a hot water storage tank, a cesspool, a tap-water pipe and an absorption heat pump set, wherein the tap water is divided into two branches after being pressurized by a feed water pump; one branch exchanges heat in the absorption heat pump set firstly and then enters the hot water storage tank; the other branch enters a tap-water preheater and exchanges heat with the sewage directly; the effluent absorbs heat and rises the temperature through an absorber and a condenser and then enters the hot water storage tank for being used as hot water for bath; the bath sewage is collected by the cesspool and is purified; the purified sewage is filtered by a filter, is pressurized by a sewage pump, then enters the tap-water preheater, and exchanges heat with the tap water firstly; and the effluent exchanges heat with refrigerating fluid of an evaporator and then is exhausted. The invention does not need to additionally install a boiler as a heat source; and the tap water exchanges heat with the bath sewage directly, so the heat exchange efficiency is improved.

Disclosed is a high-efficiency solar integrated external wall for a building, which comprises an external side, an internal cavity and an internal side, wherein, the external side of the wall is made of toughened glass, the internal cavity of the wall comprises a solar heat collector and a thermal insulating layer, and the internal side of the wall is made of toughened glass, wherein, the solar heat collector comprises a metal heat collection plate and a metal heat collection pipe. The metal heat collection pipe comprises several branch pipes, an upper main pipe and a lower main pipe, the pipes are filled with heat carrying medium; the surface of the metal heat collection plate is coated with a coating having a sunlight absorption function; the metal heat collection plate and the metal heat collection pipe are machined integratedly, the metal heat collection pipe is arranged in the middle of the metal heat collection plate. The upper main pipe and the lower main pipe of the metal heat collection pipe connect with an upright hot water storing tank through an inlet pipe and an outlet pipe, a circulating pump is arranged between the upright hot water storing tank and the high-efficiency solar integrated external wall. Because the internal cavity is actually a close space enclosed by two layers of toughened glass, as is well known, the air in the close space also have a thermal insulating function, therefore, the thermal insulating effect of the invention is excellent.

A device and a method for power generation by waste heat of a blast furnace slag belong to the technical field of utilization of waste heat of iron-making blast furnace slag. The device for power generation by the waste heat of the blast furnace slag comprises a water pump, a hot water pool, a heat exchanger, a hot water storage tank, a water-feeding pump, a high-pressure nitrogen source, blast furnace slag, a thermal deaerator, a high-temperature water tank, a flash tank, a steam turbine, a generator, a condenser and a condensing pump. On the premise of not influencing free flow of the blast furnace slag and an original slag flushing process, partial waste superheat of blast furnace slag is recycled to generate steam and power, and the device for power generation by the waste heat of the blast furnace slag is economical and suitable to use and reliable in technology.

The invention relates to a solar photovoltaic heat pump system, which comprises a solar photovoltaic electricity generation system, a recycle cooling system and a heat pump hot water system. A waterside inlet of an evaporator is connected with an inlet branch of a condenser through a branch, a fourth temperature control valve is arranged in the middle part, a cooler is pasted on the back of a photovoltaic component, an outlet of the cooler is respectively connected with a hot water storage tank and a constant-temperature water tank through a second temperature control valve and a first temperature control valve, a left side branch in the lower part of the hot water storage tank is connected with the cooler through a first recycle water pump, a right side branch in the upper part of the hot water storage tank is connected with the waterside inlet of the evaporator through a second recycle water pump and a third temperature control valve, an outlet of the evaporator is connected with the lower right side of the hot water storage tank through a pipe, the waterside inlet of the evaporator is connected with a third recycle water pump and the constant water tank in series through the pipe, a refrigeration loop of the evaporator is connected with a regenerator and is connected with an air entry and an exhaust outlet of a compressor through a liquid storage tank, and the inlet and the outlet of the condenser is connected with the evaporator entry through the regenerator and the electronic expansion valve.

The invention relates to the fluid heater using a heat pump and a control method of the fluid heater, in particular, a primary heating type heat pump water heater with a temperature control switching function and a three-water tank double-loop circulation water heating structure. The primary heating type heat pump water heater includes a heat pump unit and three water tanks; the first water tank and the second water tank are connected with a condenser through a three-way valve and a circulating pump, so that a first heating circulating loop and a second heating circulating loop of which the switching is controlled by the three-way valve can be formed; cold water inlets of the first water tank and the second water tank are connected with a cold water incoming pipeline through a first electromagnetic valve and a second electromagnetic valve; and hot water outlets at the tops of the first water tank and the second water tank are connected with a hot water storage tank through a three-way constant temperature hot water pipe, so that a first constant temperature water outgoing channel and a second constant temperature water outgoing channel which are controlled by the first electromagnetic valve and the second electromagnetic valve can be formed. The temperature control-switched three-water tank double-loop circulation water heating structure is adopted to product hot water, and outgoing water temperature can achieve set temperature and is not affected by incoming water flow, and the stability and continuity of the heating of hot water can be ensured.

The invention discloses a continuous drying device for powdery simple substance explosive. A drying station is placed on the upper end face of a hot water circulating jacket and supported by an inner support frame body, a static rotation connecting unit can drive the drying station under the action of a driving transmission unit to rotate at a proper rotational speed, and thermostatic hot water in a hot water storage tank can be circularly supplied to the hot water circulating jacket; and a distribution plate, a scraping plate and a rake feeder are arranged along the radial direction of the drying station through an outer support frame body. The powdery simple substance explosive is conveyed to the drying station between the distribution plate and the scraping plate by a feeder; the powdery explosive is subjected to processes of spreading, water evaporation, raking and water evaporation in turn along with the circular motion of the drying station; and when the drying station rotates for one circle, the dried powdery simple substance explosive is scraped into a hopper by the scraping plate. The device solves the problems of continuous operation and field isolation in the powdery simple substance explosive drying process, and has the predominant advantages of good inherent safety, short drying process period, low energy consumption, high efficiency and the like.

A hot water storage tank (3) and a circulating path (12) coupled to the hot water storage tank (3) are provided. An operation is possible wherein low-temperature water, let out from a lower part of the hot water storage tank (3) and entering the circulating path (12), is heated and boiled up by a heat pump heating source for forwarding to an upper part of the hot water storage tank (3). A refrigerant circulating circuit of the heat pump heating source is provided with a defrost circuit (38) for supplying hot gas from a compressor (25) to an air heat exchanger (28). It is possible to perform a defrost operation for providing a supply of hot gas to the air heat exchanger (28), with a water circulation pump (13) of the circulating path (12) held in abeyance. The water circulation pump (13) is made active if the defrost operation has been continued for not less than a predetermined time period since the start thereof.

The invention discloses a regional system with cooling, heating and hot-water supplying functions and a control method thereof. The regional system with cooling, heating and hot-water supplying functions is composed of a domestic hot water storage tank, an air conditioner end system, a ground source heat exchange system and a water source heat pump unit. The regional system with cooling, heating and hot-water supplying functions is capable of solving the requirements of buildings in cooling, heating and hot-water supplying. The regional system with cooling, heating and hot-water supplying functions can be used for refrigerating in summer, and the water source heat pump unit can be used for heating in winter, so that the domestic hot water can be prepared in spring, autumn and winter; in combination with an advanced machine room control method, a set of complete warm-cold hot water requirements are provided for buildings; and the regional system with cooling, heating and hot-water supplying functions is energy-saving and environment-friendly and is widely applied to places such as a restaurant, a hotel, a hospital, a house and the like.