118 results about "Heating energy" patented technology

The invention discloses an optimal scheduling method for a ground source heat pump system, and relates to the technical field of new energy utilization and intelligent control of a heat supply system.The method comprises the steps that the ground source heat pump system is divided into a tail end heat exchange layer, a water pump transmission and distribution layer and a source side heat pump coupling layer on the basis of a heat energy conversion and transmission path; constructing a response coupling relation and a mapping model; operating data of three layers of equipment are collected, a time sequence of each layer is established, a dynamic delay structure matching coefficient is calculated, and a multi-layer linkage response lag risk is identified based on a first threshold value; further monitoring a second derivative of the source side temperature change, calculating a thermal inertia interference index, and judging that the thermal response of the source side is abnormal in combination with a second threshold value; and the water supply flow of each branch is extracted, the target water supply value and the total flow of the system are combined, a flow deviation factor is calculated, flow distribution deviation is recognized according to a third threshold value, accurate strategy generation and intelligent scheduling control based on multi-parameter dynamic characteristics are achieved, and the response coordination and operation stability of the system are improved.

The utility model discloses a heat recovery and utilization system and a micro-pressure steam heat energy unit, and an efficient heat energy recovery and reutilization loop is constructed through equipment such as an evaporator, a screw compressor, a condenser, an expansion valve and a flash tank. The evaporator absorbs heat from heat source water and evaporates a refrigerant into low-pressure gas, then high-temperature hot water is generated through the compression and condensation process, meanwhile, the flash tank is used for converting the high-temperature hot water into micro-pressure steam so as to meet the requirement for low-pressure steam in the system, by efficiently recycling and utilizing waste heat, the dependence of the system on external steam and electric power is reduced, and the energy consumption of the system is reduced. Therefore, energy efficiency is improved, operation cost is reduced, and energy waste and environmental influence are reduced.

The invention provides a noise isolation type heat energy transfer heating method and system, and belongs to the technical field of industrial waste heat utilization and heating ventilation air conditioning. The system comprises a waste heat fluid collecting unit, a first-stage heat exchanger unit, a middle heat transfer medium circulating unit, a second-stage heat exchanger unit and a heating circulating water conveying unit which are sequentially connected through pipelines. The system further comprises an acoustic isolation structure unit, a temperature regulation and control unit and a system supporting frame unit which are coupled with the thermal unit structure. The core of the system is that through thermal-acoustic integrated collaborative design, waste heat of heat source equipment is efficiently transferred, meanwhile, effective isolation of overall operation noise of the system is achieved through a multi-mode and multi-physical-field noise suppression mechanism, the technical contradiction that heat energy recovery and noise control are separated mutually in the prior art is solved, and the system is suitable for large-scale popularization and application. And the device is particularly suitable for heating places with strict requirements on sound environments.

The invention relates to a thermal energy storage system and method based on temperature stratification and dynamic isothermal layer control. The system comprises a pressure-resistant shell internally provided with a tower-type layered heat storage unit, the unit is composed of a plurality of heat storage cavities which are stacked up and down, and the temperature gradient with the high temperature at the upper part and the low temperature at the lower part is naturally formed by utilizing the characteristic that the water temperatures are different and the densities are different; a partition plate with a water passing structure is arranged between every two adjacent cavities so as to balance the water level and prevent turbulent flow. And each chamber is provided with a water outlet valve and a water return inlet valve which are independently controlled. According to the method, opening and closing of valves of corresponding temperature layers are dynamically controlled according to the real-time temperature of external thermal equipment through a homothermal layer control strategy, synchronous movement of a water taking layer and a water returning layer along with process temperature changes is achieved, and therefore accurate storage and taking and gradient cyclic utilization of heat energy are completed. The problems that in the prior art, a system is redundant, and the heat energy mixing and single-time utilization efficiency is low are solved, the structure is simplified, heat energy is stably stored, the energy efficiency is maximized, and the energy-saving effect is remarkable.

To provide a technique capable of accurately estimating heat energy consumption of a heat utilization facility without requiring an expensive flowmeter and without stopping a factory.SOLUTION: An estimation device (1) includes an estimation unit (11) configured to acquire a first measurement value from each of a plurality of heat utilization facilities (21 to 22) and calculate an estimation value of thermal energy consumption of each of the plurality of heat utilization facilities (21 to 22) from the first measurement value, a correction value calculation unit (12) configured to calculate a correction value from an analysis value of a drain flow rate of an entire plant (2) including the plurality of heat utilization facilities (21 to 22) calculated by a simulator (3) and an actual measurement value of the drain flow rate of the entire plant (2), and an estimation unit (13) configured to estimate the thermal energy consumption of each of the plurality of heat utilization facilities (21 to 22) by correcting the estimation value using the correction value.SELECTED DRAWING: Figure 4

The invention relates to an immersion bath for cryotherapy. The immersion bath comprises an immersion tank, which can be filled with water, for immersing a substantial portion of the body of a person, and a temperature-control device which is designed to control the temperature of a temperature-control medium and to transfer heat energy between the temperature-control medium and the immersion tank and / or the water in a heat transfer region. The temperature-control device includes a temperature-control unit which controls the temperature of the temperature-control medium, and a control device which controls the temperature-control unit. The temperature-control unit has an ice-generation mode, in which the temperature-control unit controls the temperature of the temperature-control medium in the heat transfer region to a temperature of less than or equal to 0°C, and a defrost mode, in which the temperature-control unit controls the temperature of the temperature-control medium in the heat transfer region to a temperature of greater than 0°C. The control device is designed such that it operates the temperature-control unit, upon start-up, in a repetitive temperature-control cycle in which the temperature-control unit operates alternately in the ice-generation mode and in the defrost mode.

The embodiment of the invention provides a baking waste heat recovery method and system based on multistage heat exchange, and belongs to the technical field of waste heat recovery and utilization. The method comprises the steps that exhaust operation parameters in the baking process are obtained, and a plurality of thermotechnical stages and stage identifiers corresponding to the thermotechnical stages are obtained; determining a heat grade index and a dew point difference of each thermal stage based on the stage identifier, and generating a cascade sequence and a valve position control parameter corresponding to each thermal stage; calling the corresponding cascading sequence and the valve position control parameters according to the stage identifiers to execute sequential heat exchange, and calculating to obtain a heat recovery result of each thermal stage; and according to the stage identifier and the production line rhythm, the heat recovery result is distributed to the heat utilization link according to the priority matrix, and the priority matrix and the distribution quantity are dynamically corrected based on the energy demand during stage switching. According to the scheme, dynamic matching of heat energy and self-adaptive control of condensation risks in the baking process are achieved, so that the waste heat utilization rate is increased, and the temperature field in the furnace is kept stable.

A datacenter dry cooling system and method for cooling a heat-generating source are provided. The configuration includes an evaporating pad disposed on an air-to-liquid heat exchanger panel and an evaporating cooling water distribution arrangement for applying a controlled measured amount cooling water to the evaporating pad. The applied water serves is to be evaporated while the evaporating pad is exposed to ambient airflow to dissipate thermal energy of warmed liquid received from the heat-generating sources. The evaporating pad incorporates at least one of a temperature sensor or a humidity sensor for detecting outside temperature or humidity levels. A controller communicatively-coupled to the temperature or humidity sensor controls the volume flow of the cooling water based on the detected temperature or humidity levels.

The invention discloses an intelligent heat supply energy-saving control method based on deep learning, particularly relates to the technical field of water source heat pump heat supply, and is used for solving the problems of sudden increase of invalid power consumption of a compressor and recessive attenuation of energy efficiency caused by a monitoring blind area of a water body temperature field in the prior art. The method comprises the following steps: acquiring upstream water environment parameters of a heat absorption port in real time, and generating a downstream dynamic temperature distribution state by adopting deep learning enhanced dynamic heat transfer coupling analysis; on the basis of thermal gradient vortex structure recognition and water body heat capacity supplement rate unbalance judgment, a local low-temperature area is accurately positioned; establishing an electric hydraulic frequency domain coupling relation between the heat pump operation frequency and the water body flow velocity pulsation spectrum, and quantifying the hydraulic resonance triggering probability; ineffective power consumption increment is evaluated in combination with the low-temperature region state parameters and the resonance probability; and finally, the driving frequency of the compressor is dynamically adjusted according to the condition that the invalid power consumption increment exceeds the threshold value, and the flow of the circulating pump is synchronously optimized, so that full-chain control from local low-temperature region identification to energy efficiency closed-loop optimization is realized.

The application discloses a power plant start-up stage feedwater heating energy-saving operation method, which is applied to a self-adaptive feedwater regenerative system in a thermal power plant; the self-adaptive feedwater regenerative system comprises a high-pressure heater group and a bypass steam supply branch; the bypass steam supply branch is respectively communicated with a condenser in the thermal power plant and a steam side of at least one high-pressure heater in the high-pressure heater group; during the start-up stage of the thermal power plant, the pressure value change of main steam is acquired and monitored in real time, so as to judge whether the pressure value is in a preset operation range; if yes, the bypass steam supply branch is opened, part of the main steam is introduced into the steam side of the at least one high-pressure heater in the high-pressure heater group, the feedwater flowing through the water side of the high-pressure heater is heated, and meanwhile, the remaining part of the main steam is introduced into the condenser; after the thermal power plant meets preset normal operation conditions, the bypass steam supply branch is closed, and a normal feedwater heating mode is switched synchronously.

The invention discloses a heat pump system and a waste heat recovery method, and belongs to the technical field of heat pump waste heat recovery, the heat pump system is used for recovering waste heat of a waste heat source, the waste heat source comprises a water outlet pipe and a water inlet pipe, and the heat pump system comprises a first-stage heat exchange unit, a second-stage heat exchange unit and a cold using end assembly; the first-stage heat exchange unit comprises a first condensation assembly and a first evaporation assembly, and a heating side channel of the first condensation assembly is connected with the water outlet pipe and used for receiving waste heat and heating water into high-temperature water. A cooling side channel of the first evaporation assembly is used for introducing normal-temperature water and outputting low-temperature water after the normal-temperature water is cooled; the second-stage heat exchange unit comprises a second condensation assembly and a second evaporation assembly. The two ends of a heating side channel of the second condensation assembly communicate with a cooling side channel of the first evaporation assembly and the water inlet pipe correspondingly. And the cold end assembly is in heat exchange connection with the second evaporation assembly. Waste heat can be converted into high-grade heat energy and cold energy at the same time, consumption of primary energy is reduced, and the energy utilization efficiency is improved.

The invention provides a thermal power poly-generation system integrating waste heat recovery and pump heat energy storage. The thermal power poly-generation system comprises a combined heat and power generation system, and a flue gas waste heat utilization system exchanges heat with flue gas of the combined heat and power generation system and recovers flue gas waste heat; the pump heat energy storage system comprises a heat pump and a heat storage system, the heat storage system is connected with the combined heat and power generation system and the flue gas waste heat utilization system through pipelines for heat exchange through the heat pump, and the heat storage system is further electrically connected with the combined heat and power generation system for heat storage. The flue gas desulfurization waste heat recovery system is arranged on the tail flue of the boiler, so that the flue gas waste heat can be effectively recovered, and the coal consumption of a unit is reduced; cold energy supply can be achieved through the pump heat energy storage system, meanwhile, surplus electric energy and waste heat are converted into high-temperature heat energy to be stored in a high-temperature storage tank, the high-temperature heat energy is released when needed to generate steam, the steam is reinjected into a steam turbine thermodynamic system, the thermoelectricity operation interval is widened, the unit variable load rate is increased, and the power generation efficiency is improved. The operation regulation capability of the combined heat and power generation system is enhanced, and more flexible regulation and control means are provided.

An integrated underground heat storage and heat transfer system is provided for CO2-based heating and cooling installations. The invention enables both energy storage and heat exchange in a single Underground Thermal Energy Storage (UTES) system. Excess heat produced during warm weather heats the ground to relatively high temperatures, which in cool weather serves as an artificial geothermal source. A geothermal heat pump (GHP) system reclaims this heat during cool weather. When the GHP is reversed in warm weather, the rejected heat is sent to a separate loop installed in cold earth.

This invention relates to the field of low-grade thermal power generation technology, and more particularly to a Karina cycle power generation system based on an ORC working fluid pair and its application. The system includes a power generation unit with a circulating working fluid consisting of a first low-boiling-point component and a second high-boiling-point component. An external heat source is introduced into the heat exchange unit to heat the working fluid. A phase change separation unit separates the heated working fluid into a gas phase branch and a liquid phase branch. The gas phase branch is connected to a turbine expander to convert thermal energy into electrical energy. A control device acquires external heat source temperature distribution data and real-time phase change temperature data of the working fluid through a status acquisition module. A temperature difference calculation module generates heat exchange temperature difference data including temperature deviation values. A circulation control module receives the heat exchange temperature difference data and outputs flow regulation commands to a pressurized pumping unit to adjust the circulating flow rate of the working fluid, reduce the heat exchange temperature difference, and improve the thermoelectric conversion efficiency.

This invention related to a system configured to circulate a thermal fluid in a circulation loop connected to at least one flow control valve, where the system includes the thermal fluid; one or more heat exchangers; at least one flow control valve configured to redirect a thermal fluid flow to contact the heat exchanger connected to one or more thermal elements; and a controller configured to set states of the flow control valves to configure a thermal fluid path and control transfer of thermal energy from the thermal elements. This invention also related to a method for circulating a thermal fluid in a circulation loop connected to at least one flow control valve.

The utility model discloses a cement clinker bleaching device which comprises a machine body, a feeding pipe is installed at the top of the machine body and communicated with an external rotary kiln, bearings are arranged on the left side and the right side of the machine body respectively, and a first stirring shaft and a second stirring shaft are arranged on the bearings on the two sides respectively. According to the cement clinker bleaching device, the heating cavity is formed in the bleaching machine, the cold water is injected into the heating cavity, the cold water can absorb heat carried by clinker in the bleaching process, and heat can be supplied to equipment such as a boiler after the cold water absorbs heat, so that the utilization rate of waste heat of the clinker is increased, and further, the utilization rate of waste heat of the clinker is increased. After the clinker is bleached, the temperature of the clinker is still 200 DEG C or above, residual waste heat in the clinker can be recycled again through a subsequent waste heat recycling assembly, and the recycled heat energy is directly fed into a kiln opening of the rotary kiln to be used by the rotary kiln.

The invention relates to a defrosting method and device of a hot water unit, the hot water unit and electronic device.The method comprises the steps that the defrosting duration of a current defrosting period is determined on the basis of a target factor and the defrosting duration of a previous defrosting period, the target factors comprise the heat exchange capacity attenuation rate of the hot water unit and the heating energy efficiency ratio of the hot water unit; wherein the defrosting duration of the first defrosting period is a first preset duration; the environment temperature of the environment where the hot water unit is located and the defrosting temperature of the hot water unit in the current defrosting period are obtained; the compressor frequency of the hot water unit is determined based on the temperature difference between the environment temperature and the defrosting temperature; and within the defrosting duration of the current defrosting period, the hot water unit is defrosted according to the determined compressor frequency. By means of the defrosting control method and device, the problem that in the prior art, defrosting control of the hot water unit is achieved through the defrosting condition set at the fixed environment temperature, and consequently the defrosting effect is poor is solved.

Provided is a refrigeration apparatus (100), in which a refrigerant and an adsorbent circulate, comprising a compressor (131), a decompression mechanism (132), a first heat recovery unit (133), a second heat recovery unit (134), and a control unit (105). The first heat recovery unit (133) recovers hot heat generated when the adsorbent adsorbs the refrigerant. The second heat recovery unit (134) recovers cold heat generated when the adsorbent desorbs the refrigerant. The first heat recovery unit (133) has a first heat transfer tube (133a) through which a mixture of the refrigerant and the adsorbent passes. The control unit (105) changes at least one of the rotation speed of the compressor (131) and the throttle amount of the decompression mechanism (132), and, when changing the capacity of the second heat recovery unit (134) from a first capacity to a second capacity larger than the first capacity, increases the area ratio of the refrigerant occupying a first cross section C of a second heat transfer tube (134a).

The invention discloses a temperature follow-up multi-objective optimization temperature control method, which comprises the following steps of: setting system parameters, and configuring temperature control parameters which comprise a temperature control lower limit, a temperature control upper limit, a temperature acquisition and temperature control judgment period and a temperature measurement effective range; real-time data acquisition and analysis are carried out, and effective temperature data are screened out; judging the type of a temperature control interval, acquiring the maximum temperature from the effective temperature data, and judging the current temperature control state interval of the system according to the maximum temperature; and based on the judgment result of the temperature control state interval, dynamically setting a temperature control target for each temperature control object, and controlling the on-off state of a heater of each temperature control object according to the temperature control target. According to the temperature control method provided by the invention, the temperatures of a plurality of temperature control objects are monitored, the highest temperature in the system is identified, and the temperature control target values of the objects are dynamically adjusted in a zoning manner by combining the temperature control upper and lower limits and the temperature consistency deviation, so that collaborative optimization of multi-target temperature consistency and heating energy consumption is realized.

The application discloses a composite cooling system which comprises a heat exchanger and a refrigeration system. The composite cooling system comprises the heat exchanger for exchanging cold and heat energy and the refrigeration system connected with the heat exchanger for forming a main refrigeration cycle and a secondary refrigeration cycle. The refrigeration system comprises at least one expansion valve. By controlling the expansion valve, the cold energy generated by the main refrigeration cycle can be used to perform secondary heat dissipation on a high-heat-source through the heat exchanger, and the secondary refrigeration cycle can be used to dissipate heat of other heat sources. The heat exchanger has a cold end inlet, a cold end outlet, a hot end inlet and a hot end outlet. The cold end inlet and the cold end outlet are in communication. The hot end inlet and the hot end outlet are in communication and are not in communication with the cold end inlet and the cold end outlet. The refrigeration system comprises an expansion valve, a heat dissipation unit and a compressor. The expansion valve is connected with the cold end inlet. The heat dissipation unit is connected with the expansion valve. The compressor is connected with the heat dissipation unit and the cold end outlet.

This utility model discloses a condensation-reheat type gas whitening device, belonging to the field of humid gas whitening technology. It includes: a hydrophobic storage system for storing steam condensate from a hydrophobic pipe and outputting high-humidity gas from the steam condensate; a condensation system connected to the hydrophobic storage system for condensing and drying the high-humidity gas output from the hydrophobic storage system into saturated humid gas before output; and a reheating device connected to the hydrophobic storage system and the condensation system for cooling the steam condensate output from the hydrophobic pipe before inputting it into the hydrophobic storage system, and simultaneously heating the saturated humid gas output from the condensation system to form unsaturated high-temperature gas before discharge. This application utilizes heat exchange between the saturated humid gas and the steam condensate in the reheating device, which can effectively reduce the temperature of the steam condensate entering the hydrophobic storage system, thereby mitigating the degree of flash evaporation of the steam condensate.

The invention discloses a frostless heating and refrigerating air source heat pump which comprises a fin air heat exchanger, a circulating water heat exchanger and a compressor throttling assembly. A cooling tower filler is arranged above the fin air heat exchanger, a spray header is arranged above the cooling tower filler, an air outlet water baffle is arranged above the spray header, and an exhaust fan is arranged above the air outlet water baffle; an air inlet is arranged below the fin air heat exchanger, and a liquid storage tank is arranged below the air inlet; the anti-freezing solution in the liquid storage tank is conveyed to the spraying head through the spraying water pump and the spraying pipeline; and liquid level meters are arranged at different liquid level heights in the liquid storage tank. Frosting is avoided during operation in winter, extra heat energy is not paid for defrosting shutdown any more, the higher the humidity of the operation environment is, the larger the heating capacity of the unit is, and the higher the energy efficiency ratio is; heating in winter can be efficiently and stably carried out at the environment temperature of-30 DEG C or above; the refrigeration coefficient in summer is the same as that of a water-cooling unit, and efficient and stable operation can be achieved in extremely hot weather of 40 DEG C or above.

We provide a sauna stove with a simple configuration that supplies appropriate humidity to the sauna room. [Solution] The sauna stove 1 comprises a heater element 2 for heating the sauna room, a metal housing 3 for housing the heater element 2, and a metal water storage container 6 attached to the outer surface of the housing 3, having an opening 5 at the top and storing water W inside. Therefore, the thermal energy of the housing 3 heated by the heater element 2 can be transferred to the water storage container 6, thereby heating the water storage container 6. As a result, the water W inside the water storage container 6 is heated, and steam can be supplied into the sauna room through the opening 5.

This invention discloses a method for regulating the operation of a low-temperature return water cogeneration heating system, comprising: determining the minimum supply water temperature t0 of the system; when the heating load is greater than the load threshold Q0, using a quality regulation method, the system operates at the maximum circulating water volume, and the supply water temperature gradually decreases from the design temperature to the minimum supply water temperature t0; when the heating load is less than or equal to the load threshold Q0, using a quantity regulation method, the circulating water volume can be changed within a set range to maintain the supply water temperature at the minimum supply water temperature t0; calculating the equivalent heating power of each stage of steam and each operating condition; using the lowest weighted equivalent heating power w of the power plant as the sorting principle, determining the steam extraction sequence and steam volume of each unit during the heating load change process. This invention achieves refined regulation of power plant heating, incorporating power plant circulating water volume, supply water temperature, heating steam matching, and unit back pressure into the heating regulation scope on the basis of traditional simple quality and quantity regulation, thereby optimizing the power plant's heating energy consumption.

A domestic hot water supply system comprising: a cold water inlet (302) for receiving cold water from a main supply; a hot water outlet (304) connected to supply hot water to the domestic hot water outlet on demand, the domestic hot water outlet being enabled by a user; a heat exchanger (308) for heating water using the hot fluid received from the hot fluid source (306); an electric heater (326); a heat storage device (342) for storing heat; a circulation pump (320) for pumping water from the heat storage device (342) to the heat exchanger (308); and a controller (340) to control operation of the system to supply hot water to the hot water outlet (304) in such a manner that water heated at the heat exchanger (308) is used if sufficient hot fluid is received from the hot fluid source (306) to enable water to be heated at the heat exchanger (308) using thermal energy from the hot fluid; if heat sufficient to supply hot water has been stored in the heat storage device (342), using water from the heat storage device (342), or causing water to travel from a heat exchanger (308) via an electric heater (326) to a hot water outlet (304), the heat exchanger being controlled to heat water therethrough; and if it is determined that the temperature of the hot water at the hot water outlet (304) is higher than the desired temperature, controlling the system to travel cold water from the cold water inlet (302) to mix with the hot water to reduce the temperature of the mixed water traveling to the hot water outlet (304).

The present invention relates to a drain system for recovering thermal energy from a flow of shower or faucet greywater. The drain system comprises: a drain collector having a receiving surface for receiving greywater, and a drain collector outlet formed in the receiving surface for discharging greywater from the receiving surface; a heat exchanger configured to heat a flow of incoming cold water with the greywater; an upstream filter and a downstream filter, arranged to filter the greywater flowing along the receiving surface to the drain collector outlet, wherein the upstream filter comprises a first filter screen protruding from the receiving surface and the downstream filter comprises a second filter screen arranged upstream the drain collector outlet.

The utility model discloses a novel flow distribution device based on the return water temperature of a thermal chamber, which comprises a bottom plate, a first heat supply pipeline loop is arranged above the bottom plate, a first electric control valve, a first temperature sensor and a first flowmeter are arranged above the first heat supply pipeline loop, and a second electric control valve, a second temperature sensor and a second flowmeter are arranged above the first electric control valve. And a first wireless transmission device is fixedly installed on one side of the surface of the first electric adjusting valve, a first adjusting valve controller is fixedly installed above the first electric adjusting valve, and a second heat supply pipeline loop is arranged on the portion, close to the first electric adjusting valve, of the bottom plate. By means of the structure, flow and temperature data can be observed in real time, real-time adjustment can be carried out, workload of operators is reduced, labor cost is reduced, heat energy waste can be reduced, operation cost of companies is further reduced, the functions of data acquisition, fault alarm, historical recording and the like can be achieved, and operation management is facilitated.

The invention discloses a high-temperature slag heat energy recovery device and method using water mist air cooling. Comprising a feeding mechanism, a crushing and lifting mechanism, a solid waste heat recovery furnace, a first-stage waste heat recovery mechanism, a second-stage waste heat recovery mechanism, a water mist generation mechanism, a hot air waste heat recovery furnace and a hot water pipe. A crushing and lifting mechanism is arranged between the feeding mechanism and the solid waste heat recovery furnace, the discharging end of the feeding mechanism is connected with the feeding end of the crushing and lifting mechanism, and the discharging end of the crushing and lifting mechanism is connected with the feeding end of the solid waste heat recovery furnace; a first-stage heat exchange water pipe is arranged in the hot air waste heat recovery furnace, the solid waste heat recovery furnace is provided with a second-stage heat exchange water pipe, and the first-stage heat exchange water pipe and the second-stage heat exchange water pipe are respectively connected with a hot water pipe; the feeding mechanism comprises a conveying unit, a first-stage waste heat recovery mechanism and a second-stage waste heat recovery mechanism which are connected are sequentially arranged on the conveying unit, the second-stage waste heat recovery mechanism is connected with an air inlet of the hot air waste heat recovery furnace, and the first-stage waste heat recovery mechanism is connected with an air outlet of the hot air waste heat recovery furnace. And the water mist generation mechanism is connected with the primary waste heat recovery mechanism. The heat recovery efficiency of multi-stage air cooling is improved, the air consumption is reduced, the production cost is reduced, and the device is more environmentally friendly.

The utility model belongs to the technical field of sewage treatment, and discloses sewage source heat pump sludge drying equipment. According to the sewage source heat pump sludge drying equipment, a low-temperature heat source is extracted from sewage through the heat pump unit and converted into high-temperature hot air through the water-air heat exchanger, the high-temperature hot air is directly used for the heating process of the sludge drying box, and the utilization efficiency of heat energy is greatly improved; the design of the water air conditioning unit realizes the linkage operation of the heat pump unit and a plant air conditioning pipeline, so that the heat source requirement of sludge drying can be met, waste heat can be conveyed to a plant air conditioning system, and the gradient utilization of heat energy is realized; hot air enters the sludge drying box from the top, multiple layers of sludge conveying belts are arranged in the sludge drying box, sludge can be conveyed in a layered mode, the drying area is increased, the sludge can make full contact with the sludge, the drying efficiency is improved, and the drying time is shortened.

The present application relates to water purification equipment technical field, especially a kind of water purifier anti-freezing system and method, in water purifier integration heat dissipation module, temperature detection module, heating water tank and control module, heat dissipation water tank and heating water tank are communicated;The first temperature detection unit of temperature detection module is used to detect the cavity temperature of water purifier;Second temperature detection unit is used to detect the temperature in heating water tank, in the night without using, control module in the cavity temperature of water purifier body is less than first preset temperature, and the temperature in heating water tank is not less than second preset temperature, control the water in heating water tank is transferred to heat dissipation water tank, and control heat dissipation device opens, to make the heat of heat dissipation water tank be transferred to the cavity inside of water purifier, so it is the heat of hot water in heating water tank to the cavity in water purifier, promote the temperature in cavity, prevent the situation that water cannot be discharged due to pipe icing caused by temperature in water purifier is too low, and avoid the waste of heat energy in heating water tank.