CN2708173Y - Air source heat pump water heater with adjustable capacity - Google Patents

Abstract

An air source heat pump water heater with adjustable capacity of the utility model is composed of a compressor, a gas-liquid segregator, a dry filter, a capillary module, an air-cooled heat exchanger, a condenser coil, a living hot-water tank, a temperature sensor and a controller. Three capillaries with different lengths are designed respectively according to the operating conditions of winter, summer and transition season and the three capillaries are connected in parallel to form the capillary module. Three refrigeration electromagnetic valve are used for controlling on-off of the capillary module. The season energy efficiency ratio of the air source heat pump water heater and the economic performance for running all the yearround can be greatly improved. The draught fan controller with the temperature sensor controls the rotation rate of the axial flow fan according to the degree of superheat of the cold-producing medium at the exit of the evaporator coil detected. Multi-segmentation automatic air conditioning function can be obtained. The evaporator can obtain reasonable air heat energy under any operating condition. The utility model has the advantages of efficient energy-saving, safety, reliability, long service life, simple operation, etc.

Description

The air source hot pump water heater that capacity is adjustable

Technical field

The utility model relates to a kind of air source hot pump water heater, relates in particular to a kind of air source hot pump water heater with automatic capacity regulating function, belongs to heat supply of energy class and air-conditioning technical field.

Background technology

The water heater product of generally selling on China water heater market is electric heater, gas heater and solar water heater etc. at present.Wherein, electric heater is a cost with the electric power that consumes a large amount of costlinesses, is unfavorable for the reasonable utilization of the energy; In use then there is serious potential safety hazard in gas heater, and report is arranged during the annual poisoning that causes because of the use of gas heater; Conventional solar water heater can not be produced hot water overcast and rainy, can only rely on electrical heating to remedy the deficiency of solar energy, thereby the wasting phenomenon that also has the energy particularly uses this water heater very uneconomical at some overcast and rainy many southern areas.So, a kind of novel water heater based on the heat pump cycle principle begins to show up prominently on water heater market, it is to utilize evaporimeter to absorb heat energy (solar energy, air or water etc.) from surrounding environment, and by condenser heat energy is discharged into and goes in the water tank, thereby realizes the production of hot water.That Teat pump boiler has is energy-efficient, can round-the-clockly use, advantage such as safe and reliable, and has realized the rudimentary utilization of the energy, has wide development and application prospect.

Most air source hot pump water heaters of domestic production at present and sale all design and process by winter condition.When these Teat pump boilers move under transition season and summer condition, cold-producing medium evaporating temperature (pressure) can raise along with the rising of outside air temperature, the pressure reduction at capillary two ends reduces thereupon, because length capillaceous is fixed, make the refrigerant mass fluxes that flows into evaporator with heat pump reduce, the compressor air suction degree of superheat increases, and then influences the volumetric efficiency and the electric efficiency of compressor, even causes the compressor can't operate as normal.This shows, can not satisfy the needs of whole year operation operating mode fully by the capillary pipe length of winter condition design, make that not only the average of the whole year heating performance coefficient of air source hot pump water heater is difficult to improve, and to producing safety, stable operation and actual life of compressor harmful effect.Do not retrieve the relevant proprietary material that relates to this type of problem-solving approach up to now as yet.

Summary of the invention

The purpose of this utility model is at the deficiencies in the prior art, a kind of high-efficiency heat pump hot-water device with automatic capacity regulating function is provided, can effectively solve system matches and capacity regulating problem in the Teat pump boiler whole year operation, improve the seasonal energy efficiency ratio (seer) (EER) and the economic performance of system.

In order to realize such purpose, in the technical solution of the utility model, adopt the capillary paralleling of three different lengths to form the capillary group, replace the capillary of conventional single length that Teat pump boiler adopts.The length of three capillaries respectively according to winter, summer and transition season operating mode design, and adopt the in addition break-make control of three refrigeration magnetic valves.In addition, adopted the fan governor of a band temperature sensor, can come Control Shaft flow fan rotating speed according to the evaporation coil outlet refrigerant superheat degree that detects, realize the automatic air quantity regulatory function of multisection type, make evaporimeter under any operating mode, can obtain rational air heat energy.

The utility model is made up of parts such as compressor, gas-liquid separator, device for drying and filtering, magnetic valve, capillary group, current collector, air cooling heat exchanger, condenser coil, domestic hot-water's case, temperature sensor and controllers.The exhaust outlet of compressor is connected with the condenser coil import of domestic hot-water's case inside, the outlet drying filter of condenser coil is connected with a port of afflux/current divider, each is connected with three capillaries that are uneven in length through a magnetic valve its excess-three port of afflux/current divider respectively, the port of export of three capillaries is connected with the import of evaporation coil after being together in parallel by an afflux/current divider again, the outlet of evaporation coil is connected with the air entry of compressor through gas-liquid separator again, thereby forms the closed circulation path of cold-producing medium.

Compressor of the present utility model adopts totally-enclosed rotary compressor, is provided with gas-liquid separator in suction side and produces Wet Compression to prevent compressor.The capillary group is formed by the capillary paralleling of three different lengths, adopts three refrigeration magnetic valves to switch respectively, is applied to winter, summer and spring and autumn operating mode respectively.On capillary group upstream, be provided with device for drying and filtering, with the obstruction of avoiding moisture in the cold-producing medium or impurity to cause pipeline.Air cooling heat exchanger is made up of evaporation coil and aerofoil fan, and evaporation coil is the fin tube type structure, and aerofoil fan carries out the adjusting of multisection type air quantity by a fan governor that has temperature sensor according to evaporation coil outlet refrigerant superheat degree.Condenser coil is the sped structure that copper pipe dish system forms, and is set directly at the bottom of domestic hot-water's case, utilizes the condensation heat of cold-producing medium to heat the domestic hot-water.Domestic hot-water's case is the pressure-bearing type structure, and inner water tank is formed by corrosion resistant plate weldering system, fills the polyurethane foaming thermal-insulating between inner bag and the shell.Water tank upper is provided with an outlet pipe, and the bottom is provided with a water inlet.The water inlet of water tank can directly be connected with the city tap-water pipe network, relies on tap water pressure that hot water is extruded from tank top.In order to reduce the influence of cold water as far as possible to the temperature inside the box layering, adopt ring-like water inlet pipe, tube wall is provided with some equally spaced diffusing stream apertures.The temperature sensor of an armouring also is equipped with in water tank inside, is used to measure hot water temperature in the case.Can in 30～60 ℃ of scopes, establish the hot water temperature arbitrarily by the controller user; the hot water temperature is lower than and opens the machine temperature (in order to prevent the frequent start-stop of compressor in water tank; controller generates the machine that an opens temperature that is lower than 5 ℃ of design temperatures automatically) time; controller will start compressor automatically; when the hot water temperature reaches design temperature, the compressor autostop.

The utility model adopts the capillary paralleling of three different lengths to form the capillary group, adopt the refrigeration magnetic valve to carry out switching controls, be applied to winter, summer and spring and autumn operating mode respectively, can greatly improve the seasonal energy efficiency ratio (seer) of air source hot pump water heater and the economic performance of whole year operation.Air cooling heat exchanger is made up of evaporation coil and aerofoil fan, can export refrigerant superheat degree scope according to evaporation coil, aerofoil fan is carried out the automatic air quantity of syllogic regulate, and has guaranteed reliable, the efficient operation of compressor.The utility model efficiently solves system matches and the capacity regulating problem in the Teat pump boiler whole year operation, has energy-efficient, safe and reliable, long service life, simple operation and other advantages, has commercialization development and application prospect.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Among Fig. 1, device for drying and filtering 1, gas-liquid separator 2, afflux/current divider 3, magnetic valve 4, evaporation coil 5, aerofoil fan 6, fan governor 7, coagulate water pond 8, capillary 9, compressor 10, shell 11, water inlet 12, inner water tank 13, heat-insulation layer 14, tank shell 15, delivery port 16, temperature sensor 17, controller 18, condenser coil 19.

The specific embodiment

For the technical solution of the utility model being described in further detail below in conjunction with accompanying drawing.

Accompanying drawing 1 is an overall structure schematic diagram of the present utility model.

As shown in the figure, the utility model by device for drying and filtering 1, gas-liquid separator 2, afflux/current divider 3, magnetic valve 4, evaporation coil 5, aerofoil fan 6, fan governor 7, coagulate parts such as water pond 8, capillary 9, compressor 10, shell 11, water inlet 12, inner water tank 13, heat-insulation layer 14, tank shell 15, delivery port 16, temperature sensor 17, controller 18, condenser coil 19 and form.The exhaust outlet of compressor 10 is connected with the import of condenser coil 19, the outlet drying filter 1 of condenser coil 19 is connected with a port of afflux/current divider 3, each is connected with three capillaries that are uneven in length 9 through a magnetic valve 4 its excess-three port of afflux/current divider 3 respectively, the port of export of three capillaries 9 is connected with the import of evaporation coil 5 after being together in parallel by an afflux/current divider 3 again, the outlet of evaporation coil 5 is connected through the air entry of gas-liquid separator 2 with compressor 10, thereby forms the closed circulation path of cold-producing medium.Coagulate water pond 8 and be located at below the evaporation coil 5, and coagulate water pipe by one of bottom humid air is derived at the water that coagulates that the evaporation coil surface sweating forms.The rotating speed of aerofoil fan 6 is controlled automatically by the fan governor 7 that has two temperature sensor T.Two temperature sensor T of fan governor 7 are separately positioned on the import and export pipe of evaporation coil 5, to detect the degree of superheat of cold-producing medium.In all above-mentioned refrigeration parts, except that condenser coil, all be encapsulated in the shell 11, as the off-premises station of Teat pump boiler.

The cyclic process of cold-producing medium is as follows: the liquid refrigerant after capillary 9 throttlings flows in the evaporation coil 5, under the effect of aerofoil fan 6, carry out heat convection with outdoor air, absorb airborne heat and evaporate, flow into compressor 10 through gas-liquid separator 2 then, enter condenser coil 19 after being compressed, condensation heat is discharged water in the feed-tank inner bag 13 at this, condensed refrigerant liquid drying filter 1, magnetic valve 4, capillary 9 flow in the evaporation coil 5 again, finish once circulation thus.

Domestic hot-water's case is made up of water inlet pipe 12, inner water tank 13, heat-insulation layer 14, tank shell 15, outlet pipe 16, temperature sensor 17, controller 18, condenser coil 19.Condenser coil 19 is arranged on the bottom of inner bag 13, and water inlet pipe 12 and outlet pipe 16 are separately positioned on the bottom and the top of inner bag 13,17 middle and upper parts that are arranged on inner bag 13 of temperature sensor.Water inlet pipe 12 is connected with the running water pipe network, opens the valve on the outlet pipe 16 when using hot water, utilizes the pressure head of running water to eject hot water.Controller 18 is embedded in the heat-insulation layer 14, and its control panel then is emerging on the tank shell 15.As input quantity, the hot water that can set according to the user is temperature (30～60 ℃) and temperature sensor 17 water temperature that be detected eventually, realizes the automatic start-stop of compressor 10 is controlled with the detection signal of temperature sensor 17 for controller 18.By controller 18, the user also can be switched the state of three magnetic valves 4 according to operating mode in different season and selected suitable capillary pipe length.

Claims (3)

1, the air source hot pump water heater that a kind of capacity is adjustable, mainly comprise evaporation coil (5), compressor (10), and be placed on condenser coil (19) in domestic hot-water's case, the exhaust outlet that it is characterized in that compressor (10) is connected with the import of condenser coil (19), the outlet drying filter (1) of condenser coil (19) is connected with a port of afflux/current divider (3), each is connected with three capillaries that are uneven in length (9) through a magnetic valve (4) its excess-three of afflux/current divider (3) port respectively, the port of export of three capillaries (9) is connected with the import of evaporation coil (5) after being together in parallel by an afflux/current divider (3) again, the outlet of evaporation coil (5) is connected through the air entry of gas-liquid separator (2) with compressor (10), thereby forms the closed circulation path of cold-producing medium; Evaporation coil (5) and aerofoil fan (6) are formed air cooling heat exchanger, the rotating speed of aerofoil fan (6) is controlled automatically by fan governor (7), be embedded in controller (18) in the water tank heat-insulation layers (14) with the detection signal that is arranged on the temperature sensor (17) in the inner water tank as input quantity, according to the hot water start and stop of warm automatic control compressor (10) eventually of user's setting, and the state to three magnetic valves (4) switches under the Various Seasonal operating mode.

2, the adjustable air source hot pump water heater of capacity as claimed in claim 1, it is characterized in that described three capillaries (9) respectively by winter, summer and transition season operating mode design, and carry out break-make control by three magnetic valves (4) respectively.

3, the adjustable air source hot pump water heater of capacity as claimed in claim 1 is characterized in that described fan governor (7) has two temperature sensors (T), is located at respectively on the import and export pipe of evaporation coil (5), to detect the degree of superheat of cold-producing medium.

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