561results about "Energy efficient heating/cooling" patented technology

The present application provides a dynamics analysis method for an ammonia combustion refrigeration system in large park cooling. The method comprises: on the basis of a geometric structure of an ammonia combustion chamber and a fuel supply amount, calculating the heat generated by ammonia combustion and analyzing the heat transfer mode between the combustion chamber and a desorption tower, the heat transfer mode comprising direct contact type heat transfer and partition type heat transfer, and simulating the heat transfer process to obtain and draw the heat flux distribution of the tower wall surface; on the basis of the flow state and a relationship curve between the pressure drop and the flow velocity, analyzing the desorption process of a refrigerant in a solution, and on the basis of the concentration of the solution, a boiling point of the refrigerant, and the vapor pressure, calculating local desorption rates at different positions in the desorption tower and the refrigerant vapor generation amount; and on the basis of the heat flux distribution, calculating the temperature distribution of the solution, and analyzing the heat transfer and mass transfer processes in the desorption tower to obtain a local heat transfer coefficient and the mass transfer efficiency distribution of the surface of a filler.

A method for controlling a system including a heat pump, a space heater, a space cooler, a thermal battery, an electrical battery and a grid access system, the method including turning on at least one of discharging of the thermal battery and discharging of the electric battery, if a hot water demand exists; turning on at least one of the heat pump, charging of the thermal battery, charging of the electric battery and discharging of the electric battery, if a space heating demand exists; turning on charging of the thermal battery, if a space cooling demand exists; and backfeeding electricity from the electric battery to a grid through the grid access system, if electricity sale is desired.

The utility model relates to the technical field of lithium bromide solution purifying devices, in particular to a lithium bromide solution filtering device which comprises a stainless steel cylinder, an upper liquid outlet chamber and a lower liquid inlet chamber which are distributed up and down are arranged in the cylinder, at least two filter elements are fixed on the lower liquid inlet chamber, and the upper portions of the filter elements are communicated with the upper liquid outlet chamber. A vacuumizing opening and a solution outlet are formed in the positions, corresponding to the upper portion of the upper liquid outlet chamber, of the barrel, a solution inlet is formed in the position, corresponding to the middle of the lower liquid inlet chamber, of the barrel, and a drain outlet is formed in the position, corresponding to the bottom of the lower liquid inlet chamber, of the barrel. The lithium bromide solution purification device is reasonable and compact in structure and convenient to use, impurities in a lithium bromide solution are effectively adsorbed and filtered, so that the lithium bromide solution is purified, and the refrigerating effect of a unit is effectively improved; under the state that the solution is not completely discharged, the device achieves the purpose of removing impurities from the solution and filtering the solution during normal operation of a unit, and is simple in structure, flexible to move and capable of being repeatedly used.

The invention discloses a generator-condenser heat exchange coupled automatic cascade absorption type refrigeration cycle system. On the basis of an automatic cascade absorption refrigeration cycle, a non-azeotropic mixed refrigerant and an absorbent are adopted as working media. In the condenser, the mixed refrigerant can release a large amount of temperature slippage heat, the heat is effectively recycled by establishing a coupling heat exchange process between the generator and the condenser, the heating capacity of the generator in the system is reduced, and therefore the COP of circulation is improved. In addition, the system can adjust the refrigeration temperature by replacing the mixed refrigerant, the refrigeration temperature range can be from the room temperature to-100 DEG C or below, and the system has the advantage of being flexible in refrigeration temperature adjustment. Through reasonable arrangement of the generator-condenser coupling heat exchanger, the self-cascade absorption type refrigeration cycle configuration is optimized, the refrigeration efficiency is remarkably improved, the advantages of energy conservation and environmental protection are achieved, the wide refrigeration temperature adjusting range is provided, and the self-cascade absorption type refrigeration cycle system is suitable for various application scenes.

The utility model discloses condensing equipment for a carbon dioxide compression refrigeration system and the carbon dioxide compression refrigeration system comprising the condensing equipment. The condensing equipment comprises a generator for receiving gas carbon dioxide at a first temperature and cooling the gas carbon dioxide at the first temperature into gas carbon dioxide at a second temperature; the intermediate heat exchanger is used for receiving the gas carbon dioxide at the second temperature, so that the gas carbon dioxide at the second temperature is converted into the gas carbon dioxide at the critical temperature; the evaporator enables the gas carbon dioxide at the critical temperature to be cooled by the refrigerant liquid to realize condensation phase change, and the gas carbon dioxide is changed into liquid carbon dioxide to be discharged; a condenser; and an absorber.

The invention relates to an energy-saving efficient refrigerating unit and process, and belongs to the technical field of refrigerating equipment. The refrigerating unit comprises a generator, a condenser, an absorber and an evaporator, the condenser is connected with a flow dividing and pressure reducing pipeline, the flow dividing and pressure reducing pipeline divides a liquid refrigerant into two paths and guides the liquid refrigerant into the absorber and the evaporator, and a solution pump is arranged between a rich liquid outlet of the absorber and a rich liquid inlet of the generator. And an ejector is arranged on a pipeline between the barren liquor inlet of the absorber and the barren liquor outlet of the generator. Refrigerant formed in the condenser is divided into two paths and decompressed, one path serves as a cold source of the absorber, replaces circulating water and absorbs heat outside a pipe of the absorber to generate pool type boiling and phase change, the heat transfer efficiency is greatly improved, the refrigeration efficiency can be improved, and the refrigerant serving as liquid refrigerant self-produced by a unit is stable in temperature and low in cost. The device is slightly influenced by high temperature in summer and can be recycled.

The invention relates to the technical field of absorption type heat exchange and heat supply technologies, in particular to an intelligent large-temperature-difference absorption type heat exchange unit and a heat exchange method.The intelligent large-temperature-difference absorption type heat exchange unit comprises an I-type unit, an II-type unit and a control system.The I-type unit and the II-type unit each comprise a heat pump host, a generator, a condenser, an evaporator, an absorber, a heat exchanger and heat exchange liquid; the heat exchange liquid conducts cascade heat exchange in the generator, the condenser, the evaporator, the absorber and the heat exchanger, the heat exchange liquid comprises a lithium bromide solution and refrigerant water, the control system comprises a controller and a standby plate heat exchange module, and the two heat pump main machines are both in communication connection with the controller. The multi-stage evaporation and multi-stage absorption process is adopted, cascade heat exchange can be achieved, and the temperature difference of inlets and outlets of the I-type unit and the II-type unit is increased, so that the outlet temperature of the units is reduced, irreversible heat transfer loss in the units is reduced, and the efficiency of the units is improved.

The invention relates to the technical field of sub-Kelvin temperature zone refrigeration, and discloses an adsorption type helium-4 continuous operation sub-Kelvin refrigeration system. Comprising a refrigerating system, the refrigerating system comprises an evaporation module, a first helium-4 storage module, a second helium-4 storage module, a switch module and a cooling module, a blade type structure is adopted, under the condition that the helium-4 suction rate is guaranteed, heat loss caused by superfluid helium-4 is effectively reduced, the temperature change of activated carbon is accelerated through a pump core fin structure, and the heat loss is reduced; meanwhile, the condensation recovery rate of the helium-4 is remarkably increased through the densely-arranged small hole structure of the cooling main body, the thermal contact area is increased through the multi-layer nested non-contact structure adopted by the switch upper end cover, the switch lower end cover and the central pipe, and the conduction rate of the switch module is effectively improved; the suction pipe and the activated carbon increase the capacity of the helium-4 of the switch module and the effective heat conduction and resistance ratio of the switch module in the on-off state.

The utility model discloses a heat pump system which comprises at least two indoor units, an outdoor main machine, an air pipe and a liquid pipe. The indoor unit comprises a first refrigerant port and a second refrigerant port communicating with the first refrigerant port. The outdoor main machine comprises a first refrigerant pipeline, a second refrigerant pipeline, a refrigerant outlet pipeline and a refrigerant inlet pipeline. The first refrigerant pipeline is connected with the main connector end of the air pipe. In each indoor unit, the first refrigerant port is connected with the corresponding branch connector end in the air pipe, and the second refrigerant port is connected with the corresponding branch connector end in the liquid pipe. And the second refrigerant pipeline is connected with the main interface end of the liquid pipe. The refrigerant outlet pipeline and the refrigerant inlet pipeline are used for being externally connected with a domestic hot water module, and hot water is prepared through heat exchange between a refrigerant and water. The liquid pipe and the air pipe are further used for being externally connected with a hydraulic module, and heat exchange between the refrigerant and water is achieved. The weight of the outdoor main machine is reduced, the main machine is integrated to a system, and a user can select a domestic hot water module and a hydraulic module according to requirements.

The invention provides a coupled refrigeration and cold supply decoupling system and a design method, and the system comprises a first thermodynamic system which comprises a first condensation module and a first evaporation module; the second thermodynamic system comprises a first generation module and a second condensation module; the first generation module and the first condensation module are subjected to non-substance exchange energy coupling, the first condensation module drives the first generation module to generate vaporization through condensation heat release, and the second condensation module and the first evaporation module are subjected to non-substance exchange energy coupling; the first evaporation module drives the second condensation module to generate condensation through evaporation heat absorption. The coupling type refrigeration and cold supply decoupling system can effectively couple the compression type heat pump system and the absorption / adsorption type refrigeration system, high-grade heat released in the condensation process of the compression type system is used as a heat source of the absorption system, and energy gradient utilization between the compression type system and the absorption system is achieved; and the time relation between refrigeration and cold supply is effectively decoupled.

An electric lithium bromide absorption air conditioning unit and an energy storage refrigeration and heating system, including an electric lithium bromide absorption air conditioning unit and an electric heat storage device; the electric lithium bromide absorption air refrigeration unit comprises an electric heat generator; the electric heat generator comprises an electric heating device and / or an heat storage and heat exchanging device, and a grid power supply; the electric heating storage device comprises a heat storing and exchanging tank; the electric heating device is connected to the grid power supply. The generator used is an electric heating-type heat generator. By utilizing lithium bromide, it disrupts the conventional refrigeration compression cycle air conditioning system to address the global warming issue. This system can also give rise to independent energy storage cooling or heating solutions for grid-side energy storage projects, helping to solve the energy storage issues on the grid user side.

The utility model discloses an efficient hot water type lithium bromide absorption unit, which is characterized in that an evaporator, an absorber and a generator all adopt two-stage heat exchange, a condenser adopts single-stage heat exchange, the unit mainly comprises two independent solution circulation loops and a refrigerant pipeline, and a first-stage generator and a second-stage generator are connected in series through a pipeline. The second-stage absorber, the first-stage absorber and the condenser are connected in series through a pipeline, and the second-stage evaporator and the first-stage evaporator are connected in series through a pipeline. According to the unit, the consumption of high-grade heat energy is reduced or replaced by recovering medium-low temperature waste heat water in a factory, so that the comprehensive utilization efficiency of energy is improved; variable working condition adjustment can be achieved, and adaptability to temperature changes of waste heat water is good; meanwhile, power consumption of the unit can be reduced, and a better heat exchange effect can be achieved.

The utility model belongs to the technical field of heat exchange equipment, and relates to a self-adjustable lithium bromide unit with a prediction function. The unit is composed of an absorber, an evaporator, a condenser, a low-temperature regenerator, a high-temperature regenerator, a low-temperature heat exchanger, a high-temperature heat exchanger, a refrigerant condensate heat recovery device, a low-temperature heat regenerator, a drainage device, a high-temperature heat regenerator, a dilute solution pump, a concentrated solution pump, a refrigerant pump, a temperature sensor, a flow regulating valve, a pressure sensor and a liquid level electrode. And the control center is provided with a prediction module. According to the utility model, the state of the unit is predicted through the prediction module, and the control center adjusts the unit according to the prediction result. And the running state of the unit adopting predictive control is more stable. When external conditions change drastically, the prediction control system responds more correctly and quickly. And safe and stable operation of the unit is ensured.

The utility model belongs to the technical field of heat exchange equipment, and particularly relates to an absorption type device adopting a falling film regenerator. Comprising an absorber, an evaporator, a condenser, a low-temperature regenerator, a high-temperature regenerator, a low-temperature heat exchanger, a high-temperature heat exchanger, a refrigerant condensate heat recovery device, a low-temperature heat regenerator, a drainage device, a high-temperature heat regenerator, a dilute solution pump, a concentrated solution pump and a refrigerant pump, and the high-temperature regenerator and the low-temperature regenerator adopt solution falling film structure units. The heat exchange efficiency of solution and steam is effectively improved, heat of heat source steam is fully recycled, the low-temperature regenerator is of a falling film heat exchange structure, the refrigerant water storage amount in a heat transfer pipe of the low-temperature regenerator is reduced, the refrigerant evaporation efficiency in the high-temperature regenerator is improved, the solution filling amount in the regenerator is effectively reduced, and the unit cost is greatly reduced; and high-temperature heat return and low-temperature heat return are adopted to recover steam condensate heat, efficient recovery of heat source steam heat is achieved, and the use safety of the unit is improved.

The utility model discloses air source heat pump equipment which comprises a rack, a compressor module, an indoor side heat exchanger, a hydraulic module, a domestic hot water module and an outdoor heat exchange module, wherein the compressor module, the indoor side heat exchanger, the hydraulic module, the domestic hot water module and the outdoor heat exchange module are connected. A first chamber and a second chamber which are adjacent left and right are defined on the rack; the outdoor heat exchange module is arranged in the first cavity, and the compressor module, the indoor side heat exchanger, the hydraulic module and the domestic hot water module are arranged in the second cavity. The integration level of the air source heat pump equipment is improved.

The disclosure relates to a method (500) for controlling a decentralized heat pump system (100). The system (100) comprising: a first set (110) of one or more heat pump modules; and one or more second sets (120a-c) of one or more heat pump modules (121, 122, 123, 124); the method (500) 5 comprising: determining (S502) at least one of an outdoor temperature, and data pertaining to an electric grid status of an electric grid (150, 160a-c), determining (S504), based on at least one of said outdoor temperature, and said data pertaining to the electric grid status, and, optionally, a specification of the system (100): an ambient side fluid recirculation loop temperature set 10 point of a working fluid of an ambient side fluid recirculation loop (102); detecting (S506) a temperature of the working fluid of the fluid recirculation loop (102); and controlling (S508) an operation of the first set (110) to adjust the first working temperature of the working fluid of the fluid recirculation loop (102) to match said ambient side fluid recirculation loop temperature set point.

The utility model provides an efficient hot water type lithium bromide absorption unit arranged in a left-right structure, an evaporator, an absorber and a generator all adopt two-stage heat exchange, a condenser adopts single-stage heat exchange, and the unit mainly comprises two independent solution circulation loops and a refrigerant pipeline, the first-stage generator and the second-stage generator, the second-stage evaporator and the first-stage evaporator, and the second-stage absorber and the first-stage absorber and the condenser are connected in series through pipelines; the unit is arranged in a left-right structure, the first-stage generator and the second-stage generator and the condenser are arranged in a left-right mode, the first-stage absorber and the first-stage evaporator are arranged in a left-right mode, and the second-stage absorber and the second-stage evaporator are arranged in a left-right mode. According to the unit, the consumption of high-grade heat energy is reduced or replaced by recovering medium-low-temperature waste heat water in a factory, so that the comprehensive utilization efficiency of energy is improved, meanwhile, the left-right structural arrangement is beneficial to the compactness of the overall structure of the unit, and the occupied area is reduced.

A thermal storage absorption refrigeration unit, including: a thermal storage device and an absorption refrigerating machine; an output end of the thermal storage device is connected to an input end of the absorption refrigerating machine. The excessive wind and solar power, along with electricity from the grid during off-peak hours, are stored in thermal storage device in the form of heat. These thermal storage device are configured to serve as the heat source for the absorption refrigerating machine. The thermal storage device can achieve an energy storage efficiency of 96%, offering advantages over battery storage, compressed air energy storage, and pumped hydro storage in terms of safety, efficiency, energy savings, and low upfront investment.

The invention discloses a single-effect lithium bromide absorption type water chilling unit design method and device, equipment and a medium, and the method comprises the steps: building a hydraulic and thermal coupling calculation model based on the thermodynamic characteristics of a single-effect lithium bromide absorption type water chilling unit; and obtaining input variables, inputting the input variables into the constructed hydraulic and thermal coupling calculation model, and outputting various operation parameters of the water chilling unit. According to the method, various operation parameters of the water chilling unit can be calculated based on external input variable coupling, the inaccuracy of a traditional design calculation method is avoided, and the problems of complex calculation and low precision of the single-effect lithium bromide absorption type water chilling unit under the multivariable coupling condition are solved. The invention can be widely applied to the technical field of central air conditioners.

The utility model discloses a split type multi-combined supply central air-conditioning system driven by solar energy, and belongs to the technical field of cooling and heating equipment. The system comprises a lithium bromide absorption refrigeration type host, a solar heat collector, a refrigeration water tank, a heating water tank, a plate heat exchanger, a fuel cell, a cooling tower, a wall-hanging stove and a fan pipe disc, wherein the lithium bromide absorption refrigeration type main machine absorbs heat energy provided by solar energy through lithium bromide, and the circulation process of refrigeration or heating is completed; water is heated by solar energy absorbed by the solar heat collector and fed into the heating water tank through a pipeline to be heated by the system. The plate heat exchanger is responsible for heat exchange between the lithium bromide absorption refrigeration host and the heating water tank; the fuel cell supplies power to the system, and the wall-hanging stove assists in heating the heating water tank. The cooling tower is used for dissipating heat of the lithium bromide absorption refrigeration host; cold water in the refrigeration water tank is dissipated into a room in an air mode through the fan pipe disc so that the system can conduct refrigeration.

The utility model belongs to the technical field of thermally-driven refrigeration / heat pumps, and particularly relates to a composite compression evaporative condenser which comprises a shell, tube box shell sections and end sockets, the tube box shell sections and the end sockets are located at the two ends of the shell, partition plates are arranged in the tube box shell sections and the end sockets at the two ends respectively, and circulating water inlets are formed in the upper area and the lower area, separated by the partition plates, of the end socket at one end. Circulating water outlets are formed in upper and lower areas, separated by the partition plate, of the seal head at the other end; the interior of the shell is divided into an upper condensation cavity and a lower evaporation cavity corresponding to the partition plates at the two ends, two sets of cooling pipe bundles and liquid level switch plates are alternately arranged between the condensation cavity and the evaporation cavity, and a plurality of heat exchange pipes communicated with the end sockets at the two ends are arranged in the condensation cavity and the evaporation cavity. The composite compression evaporative condenser integrates the functions of the hydraulic turbine compressor, the auxiliary condenser, the auxiliary evaporator and the expansion valve B, the problems mentioned in the background technology can be solved, the cost of the equipment and pipelines can be reduced, and the occupied area of a unit is greatly reduced.

An electric power system is disclosed herein. The electric power system may manage and store electric power and provide uninterrupted electric power, derived from a plurality of electric power sources, to an electric load. The electric power system may contain an energy storage unit and generator assembly. The electric power system may connect to a power grid and renewable energy sources, and may charge the energy storage unit using the power grid, renewable energy sources, and / or generator assembly. The electric power system may be configured to determine load power usage and environmental factors to automatically and continuously modify a charging protocol to, for example, provide high efficiency and / or self-sufficiency from the power grid. The electric power system may operate entirely off-grid and may provide electricity to the load without interruption to power.

The internal and external falling film heat exchanger comprises an upper tube plate, a lower tube plate and multiple sets of heat exchange tubes, an upper solution box is arranged at the bottom of the upper tube plate, an upper refrigerant box is arranged at the top of the upper tube plate, a lower refrigerant box is arranged at the bottom of the lower tube plate, and a lower solution box is arranged on the side face of the lower tube plate. The bottom ends of the heat exchange tubes are communicated with the lower refrigerant box, the top ends of the heat exchange tubes sequentially penetrate through the upper solution box and the upper tube plate and are located in the upper refrigerant box, refrigerants can circulate between the upper refrigerant box and the lower refrigerant box along the heat exchange tubes, and in-tube falling film devices are installed at the top ends of the heat exchange tubes respectively. An out-tube falling film device is arranged between the periphery of each heat exchange tube and the shell of the upper solution box; the system comprises an absorption type circulation assembly, a solar driving circulation assembly, a cooling water circulation assembly and an electric compression circulation assembly. The problems that a traditional air conditioner is low in dehumidification efficiency, an existing solution dehumidification air conditioner is large in air resistance and large in occupied area, and an air source heat pump defrosting mode is low in efficiency are solved.

According to the air source heat pump two-stage heating system, an air source heat pump unit compresses a low-temperature and low-pressure refrigerant into high-temperature and high-pressure gas through a compressor, and heat is transferred to outdoor air / circulating water through a water side / air side heat exchanger. The first-stage heating system is connected with the air energy collecting device and used for primarily increasing the water temperature; the second-stage heating system is connected with the first-stage heating system and is used for further raising the water temperature to the required supply temperature; according to the system, through a series-parallel connection two-stage heating mechanism of air energy, the system flow is effectively reduced, matching with an existing heating system with a small pipe diameter becomes possible, the temperature of supplied water and returned water is remarkably increased, and therefore the good tail end heating effect is ensured.

The utility model relates to the technical field of storage devices, in particular to a copper corrosion inhibitor storage device for a lithium bromide chilled water system, which performs position adjustment through an adjusting device, performs lifting adjustment through a lifting device and performs monitoring through the distance of a monitoring device relative to the storage device. The storage device is limited through the limiting device, and the copper corrosion inhibitor is stored through the storage device; comprising a console; the device further comprises an adjusting device, a lifting device, a monitoring device, a limiting device and a storage device, the adjusting device and the storage device are both installed on the operation table, and the lifting device, the monitoring device and the limiting device are all installed on the adjusting device. The adjusting device adjusts the position, the lifting device lifts, the monitoring device monitors the distance, the limiting device limits, and the storage device stores.

The present invention relates to a heat exchange substation (50) of an energy distribution system comprising: a heat exchanger (51) with thermal inertia comprising a primary side (37a) connected to a primary supply line (36) and to a primary return line (37) and a secondary side (37b), opposite the first primary side (37a), the secondary side (37b) being connected to a secondary supply line (56) and to a secondary return line (57) of a secondary heating circuit (68), the secondary supply and return lines (56, 57) being in communication with one or more heating units (18), wherein the heat exchanger (51) comprises a tank (67) within which a first shell- and-tube circuit (81) is arranged connected at the inlet to the primary supply line (36) and at the outlet to the primary return line (37) and a second shell-and-tube circuit (82) connected at the inlet to the secondary return line (57) and at the outlet to the secondary supply line (56), and the tank (67) contains a phase change material (71), the first shell-and-tube circuit (81) and the second shell-and- tube circuit (82) being in contact with the phase change material (71).

The application discloses an air-conditioning floor heating system and a control method thereof, wherein the air-conditioning floor heating system comprises a floor heating coil pipe for heating a room; an air-conditioning unit comprising a compressor, an evaporator, a throttling device and a condenser connected in sequence, the condenser is in heat exchange with a water inlet pipe of the floor heating coil pipe to supply heat for the floor heating coil pipe; a bypass pipeline is arranged in parallel with the condenser and is used for bypassing part of refrigerant discharged by the compressor; and a heat storage water tank, the bypass pipeline passes through the heat storage water tank and is used for heating water in the heat storage water tank, the water in the heat storage water tank is in heat exchange with the water inlet pipe of the floor heating coil pipe to heat water inlet of the floor heating coil pipe. The application solves the problem of water resource waste or high energy consumption in the anti-freezing mode of the air-conditioning floor heating system in the prior art, prevents the floor heating coil pipe from being damaged due to internal water freezing expansion, improves the anti-freezing property and operation stability of the floor heating coil pipe, and achieves the effects of saving water resource and saving energy consumption.

The present invention relates to the technical field of water heaters, and specifically to an air-energy heat pump water heater, comprising: a water heater shell, which can be used to provide support when the water heater is installed; an evaporator, which is fixedly installed on the left inner wall of the water heater shell; a compressor, which is fixedly installed on the top inner wall of the water heater shell; and a bellows. The present invention effectively solves the problem of reduced heat exchange efficiency due to long-term use by descaling the surface of the heat exchange tube when the air-energy heat pump water heater is in use, and effectively solves the problem of slow heat absorption speed of the refrigerant from the air due to filter blockage by enhancing the air circulation when the air-energy heat pump water heater is in use, thereby accelerating the speed of heat absorption and evaporation of the refrigerant. The overall heat exchange efficiency is improved, and when the air-energy heat pump water heater is in use, the water circulation is enhanced, and then the heat exchange area is increased in disguise, thereby improving the heat exchange efficiency.

The invention discloses a solar thermal collector driven adsorption refrigeration operation test system, comprising: a heat-driven adsorption refrigeration test device, a thermal stability maintenance effect inspection box and a stabilizing bracket. The heat-driven adsorption refrigeration test device consists of a heat sink, an evaporating tube, a heat conducting tube, a collector flexible connector, a solar thermal collector tube and a solar thermal collector tube tray. A heat dissipation tube is fixedly installed at the inner end of the heat sink, an adsorbent barrel is fixedly installed at the inner end of the heat dissipation barrel, and an adsorbent barrel rib is fixedly installed at the outer end of the adsorbent barrel. The solar thermal collector driven adsorption refrigeration operation test system can realize the performance parameter test of the solar thermal collector driven adsorption refrigeration system. Referring to the experimental results, the industrialization development of the adsorption refrigeration technology can be promoted by optimizing the structure and material of the adsorption bed, improving the heat and mass transfer performance, and improving the refrigeration efficiency of the system.

To provide an absorption type refrigeration system capable of suppressing increase in electric power consumption and shortening of a service life of a pump.SOLUTION: An absorption type refrigeration system includes: water supply piping 24 for sending out cooling water to a lower water tank 23; a float valve 25 for opening / closing the water supply piping 24; a water level sensor 26 for detecting a water level of the lower water tank 23; a control device that stops a cooling water pump P when a water level detected by the water level sensor 26 is lower than a first level, and starts an operation of the cooling water pump P when the water level detected through the water level sensor 26 is equal to or higher than a second level exceeding the first level; and second water supply piping 27 provided separately from the water supply piping 24 to send out the cooling water to the lower water tank 23. When stop frequency or operation start frequency of the cooling water pump P reaches predetermined frequency or more, the control device reduces a pressure-feed amount of the cooling water to be pressure-fed per unit time by the cooling water pump P.SELECTED DRAWING: Figure 2