CN101371084A - Heat pump for heating swimming pool water - Google Patents

Heat pump for heating swimming pool water Download PDF

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Publication number
CN101371084A
CN101371084A CNA2006800442354A CN200680044235A CN101371084A CN 101371084 A CN101371084 A CN 101371084A CN A2006800442354 A CNA2006800442354 A CN A2006800442354A CN 200680044235 A CN200680044235 A CN 200680044235A CN 101371084 A CN101371084 A CN 101371084A
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CN
China
Prior art keywords
heat pump
condenser
heat
heat exchange
cryogenic fluid
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2006800442354A
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Chinese (zh)
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CN101371084B (en
Inventor
J·科罗伊
J·奎雷尔
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FINANC PISCINE EQUIPEMENT
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FINANC PISCINE EQUIPEMENT
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Publication of CN101371084A publication Critical patent/CN101371084A/en
Application granted granted Critical
Publication of CN101371084B publication Critical patent/CN101371084B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B6/00—Compression machines, plants or systems, with several condenser circuits
    • F25B6/02—Compression machines, plants or systems, with several condenser circuits arranged in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/027—Condenser control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B6/00—Compression machines, plants or systems, with several condenser circuits
    • F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/17—Control issues by controlling the pressure of the condenser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/193—Pressures of the compressor
    • F25B2700/1931—Discharge pressures

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Air Conditioning Control Device (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

The invention relates to a heat pump, a primary circuit of which, comprises a compressor (10), a condenser (12) forming a heat exchanger between the refrigerating fluid and the swimming pool water, an expander (14) and an evaporator (16) forming a heat exchanger between the external surroundings and the refrigerating fluid. The condenser (12) comprises two heat exchange circuits and the heat pump comprises a pressure sensor (18), a member for switching the circulation of the refrigerating fluid between states in which it is circulated in just one or in at least two of the heat exchange circuits, and a member for controlling the switching member according to the value of the signal from the sensor (18). Application is applied to the heating of swimming pool water.

Description

The heat pump that is used for heating swimming pool water
The present invention relates to a kind of heat pump that is used for heating swimming pool water, and a kind of method of heating swimming pool water.
This heat pump is a kind of thermodynamic system that comprises the main loop of cryogenic fluid, and this loop is included as the compressor of condenser feed flow, and condenser forms the heat exchanger between cryogenic fluid and the thermal source, expander and the evaporimeter that forms heat exchanger.Heat exchanger and low-temperature receiver and thermal source heat-shift, one of them is an external agency, for example atmosphere or current.
American documentation literature US5272885 has described a kind of heat pump as room air conditioner.It comprises the device that forms heat pump on the one hand, also comprises many user loops on the other hand.In this was used, external agency was made of water supply installation.In the air heat pattern, the water that the disclosed device cooling water supply facility of the document provides, in the air refrigerating mode, this device draws heat and heats the water of water supply installation from the air of air-conditioning unit inside.
This device is very complicated, because it has comprised many control systems: the internal controller of each air-conditioning equipment, distribution control unit and peripheral control unit.These all controllers carry out standard-sized sheet or full cut-off control or gradual adjusting (aperture of flow control valve is regulated, the gradual adjusting of variable displacement compressor and expander, the additional opening degree control of flow control valve etc.).In heat pump and each air-conditioning unit, many sensors have been comprised.Two valves can insert the loop with supplementary heat exchanger.
These devices were described, because it shows that the basic air conditioning use heat pump in house can be very complicated, be that it can need many equipment with functions such as detection, adjusting, controls, and these equipment easily break down, therefore the installation of this heat pump needs the professional and technical personnel.This system should be used to add hot water rather than air conditioning by transformation.
Document GB-2015139 and 406137 has described the state switching device that heat transmission equipment provides the various heat exchange surface area.
Use the heat pump swimming-pool water well-known.This heat pump comprises a main cryogenic fluid loop, as shown in Figure 1, this loop comprises compressor 10, compressor 10 is given condenser 12 (forming the heat exchanger between cryogenic fluid and the swimming-pool water to be heated) feed flow, expander 14 and evaporimeter 16 (forming for example heat exchanger between outside air and the cryogenic fluid of external agency).
The specification of these heat exchangers is size especially, and the metering needle of expansion gear and compressor is optimized certain specific operation.Especially, this condenser allows heat pump to provide peak power when keeping its optimum operating condition, and this optimum operating condition is based on cryogenic fluid loop (pressure and temperature of cryogenic fluid) angle.
When this heat pump was used for heating swimming pool water, some running parameter had specific value.Thereby, even the swimming-pool water temperature is very low, being higher than 0 ℃ a little, the user also wishes to obtain to be usually located at a temperature between 15 and 32 ℃.In addition, the flow of this swimming pool recirculated water usually between 5 to 15 cubic metres per hour between.
It is contemplated that when the big especially and/or low especially heat exchange amount that causes of temperature was big especially when the circulating water flow in the condenser, cryogenic fluid was cooled to low especially degree, so the cryogenic fluid pressure in the condenser is very low.The output of the heat pump that common do as one likes energy coefficient defines has also reduced and perhaps heat pump can show that operation troubles even heat pump damage.
On the other hand, if the low or high heat exchange amount reduction that causes in the condenser of swimming-pool water temperature owing to discharge, refrigeration stream cognition is heated to a significant degree and can causes that the pressure in the condenser raises.So the output of heat pump also can reduce, disturbed normal operation, even heat pump is damaged.Especially, above behind the specific pressure, machine can cut out by a pressure security sense switch.
Consider these actual states, the swimming pool heat pump generally includes one and is arranged in the fluid branch road of heat pump upstream so that the discharge in adjusting heat pump condenser (heat exchanger) second loop becomes possibility, so heat exchange keeps optimum state, the operation of heat pump also can be satisfactory.Therefore this device should comprise an adjusting device that is used for changing the condenser circulating water flow.Consider the discharge that needs adjusting, this adjusting device is to be difficult to operation and expensive.Usually it only can be replaced by a single manual equipment that any regulatory function can not be provided.
Therefore, existing heat pump exists some problems, and these problems are associated with complexity, the costliness enumerated and shortcoming such as be easy to be out of order among the american documentation literature US-5272885 at least in part.These problems have been brought serious obstacle on swimming pool is used, because in general the owners of swimming pool do not possess the technological know-how of operation heat pump.
The objective of the invention is to address the above problem, perhaps reduce the seriousness of problem at least, be used for the heat pump of heating swimming pool water, reduce cost especially and the sensitiveness of fault by simplification.
According to the present invention, the solution of the problems referred to above is by the heat exchange amount in the change condenser cryogenic fluid heat exchange loop, rather than by changing the flow of the water that circulates in the condenser.This variation can only realize between two values by simple and durable equipment.
Or rather, according to the present invention, when big and water temperature was low when the discharge of the porch, second loop of condenser, promptly when second loop of condenser has big heat absorption capacity, the heat transfer sheet area in the main loop of condenser can automatic minimizing.
Otherwise, when the discharge at condenser inlet place reduces and water temperature is high and when causing condenser to have less heat absorption capacity, the heat transfer sheet area in the main loop of cryogenic fluid of condenser is increase automatically.
Therefore, identical heat can be sent to second loop of condenser basically, and the main loop of heat pump may operate under the optimum operation pattern of cryogenic fluid Pressure/Temperature.
This result's acquisition can be by using the condenser that has a large amount of heat exchange loops in a kind of main loop in practice, and one or more in these loops is access in closed circuit.In this condenser, the main loop of cryogenic fluid comprises at least one heat exchange loop all the time, and at least one heat exchange loop can be access in closed circuit by at least one switching device, it is controlled by control device, the sensor that control device connects can detect operational factor, for example the cryogenic fluid steam pressure between compressor and the expander.
Therefore, when recording the pressure rising,, when reducing, carries out the pressure that records opposite operation by inserting the main loop that additional heat exchange loop increases expander.
Or rather, the present invention relates to a kind of heat pump that is used for heating swimming pool water, the main loop of this heat pump refrigerating fluid comprises: compressor, the condenser of the heat exchanger between the swimming-pool water that forms cryogenic fluid and in second loop, circulate, expander and form external agency and cryogenic fluid between the evaporimeter of heat exchanger; According to the present invention, condenser comprises at least two heat exchange loops, and heat pump comprises the sensor that is used to detect the operation of heat pump parameter, at least one can switch to cryogenic fluid only at a heat exchange loop or the state switching device that circulates at least two heat exchange loops and the parts according to the signal value control switching device shifter of sensor.
Preferably, at least one switching device shifter comprises at least one magnetic valve.
Preferably, the sensor that detects the operation of heat pump parameter detects the cryogenic fluid pressure of the high-pressure section of refrigerating circuit, for example between compressor and the condenser.
In one embodiment, heat pump comprises that at least two are connected on heat exchange loop in the condenser.Further can also comprise branch road, it is with respect to one of them heat exchange loop.
In another embodiment, heat pump comprises that at least two are connected in parallel on heat exchange loop in the condenser.
The invention still further relates to a kind of method of utilizing aforementioned heat pump heating swimming pool water, comprise the operational factor of measuring heat pump, relatively this parametric measurement value and threshold value when this parameter value surpasses threshold value, are controlled at the switching of the cryogenic fluid circulation of heat exchange loop.
Preferably, be to increase or reduce according to this parameter, this with use two different threshold values relatively comprising of threshold value, therefore control and have hysteresis effect.
According to following exemplary embodiments and relevant drawings, other features and advantages of the present invention can be able to more clearly illustrate, wherein:
Fig. 1 shows a kind of heat pump schematics that is used for heating swimming pool water as mentioned above;
Fig. 2 and 3 illustrates two embodiment of the heat exchange loop device in the main loop of heat pump condenser;
Fig. 4 shows according to heat pump condenser schematic diagram of the present invention; With
Fig. 5 is the perspective view after condenser shown in Figure 4 is removed the part parts.
As shown in Figure 1, compressor 10 makes the gaseous state refrigerant liquid be compressed to high pressure conditions, and this pressure can be recorded by sensor 18 easily.The gaseous state cryogenic fluid enters condenser 12 and circulation in its main loop feature 20.
Main loop feature 20 according to condenser 12 of the present invention can comprise at least two series connection heat exchange loops 22, and one of them can have a branch road 24, and branch road 24 inserts or do not insert closed circuit by the switching of magnetic valve 26.When valve 26 was opened, cryogenic fluid for example circulated in two coil pipes successively at two heat exchange loops 22, when valve 26 is given branch road 24 feed flows, had only second loop 22 by feed flow.
Fig. 3 shows a scheme that is arranged in parallel heat exchange loop 22, and except first, each heat exchange loop inserts or do not insert closed circuit by magnetic valve 28 controls that are associated.
Series loop shown in Figure 2 and shunt circuit shown in Figure 3 are similar, can comprise a large amount of heat exchange loops, and promptly coil pipe is such as shown in phantom in FIG..
In addition, the series connection shown in Fig. 2 and Fig. 3 and equipment in parallel are combined also be fine.
Key character of the present invention is that the heat-exchange capacity in the main loop 20 of condenser 12 can be changed to many values so that heat pump always works under its optimum operating condition by using magnetic valve 26 and 28.
Fig. 4 illustrates an embodiment of condenser 12 of the present invention.In this embodiment, before water is reversed towards water export 36 once more by the end of external shell 34, current pass inlet 30 arrive condensers 12 opposite end near, run into the bottom 31 of guider 32, make flow of water reverses to the homonymy that enters the mouth.
When current circulated between mesotube portion and guider 32, water circulated on the surface of the coil pipe 38 that forms first heat exchange loop 22.When current circulated between the outer wall of guider 32 and housing 34, water circulated on the surface of another coil pipe 40 of second heat exchange loop 22 that forms main loop.
Not shown two coil pipes 38 and 40 series connection or the pipeline of parallel connection or the annexation of magnetic valve of determining among Fig. 4.
Fig. 5 shows the practical embodiments of condenser shown in Figure 4, and identical parts adopt identical Reference numeral.
Though shown the influence of the condensator outlet pressure that the change of the heat exchange area of condenser is measured, can also adopt the parameter of other measurements.In fact, need detected pressures on the one hand usually, detect the cryogenic fluid temperature of at least one position in the main loop on the other hand.In fact these two parameters are most important for obtaining the heat pump optimum working performance.Therefore, this measurement parameter can be in any combination of art of heat pumps for the various parameters that reach this purpose.

Claims (8)

1. heat pump that is used for heating swimming pool water, the main loop of the cryogenic fluid of such heat pump comprises:
-compressor (10),
-condenser (12), its form cryogenic fluid and the swimming-pool water that in second loop, circulates between heat exchanger;
-expander (14) and
-evaporimeter (16), it forms the heat exchanger between external agency and the cryogenic fluid,
It is characterized in that condenser (12) comprise at least two heat exchange loops (22) and
Heat pump comprises the sensor (18) that is used to detect the operation of heat pump parameter,
At least one switching device shifter (26,28), this device the circulation of cryogenic fluid can be switched to only therein in the heat exchange loop (22) circulation or at least two heat exchange loops (22), circulate and
At least according to the parts of controlling switching device shifter from the signal value of sensor (18).
2. heat pump as claimed in claim 1 is characterized in that described at least one switching device shifter comprises at least one magnetic valve (26,28).
3. heat pump as claimed in claim 1 or 2, the sensor (18) that it is characterized in that being used to detect the operation of heat pump parameter detects the cryogenic fluid pressure of refrigerating circuit high-pressure section.
4. as the described heat pump of each claim among the claim 1-3, it is characterized in that also comprising the heat exchange loop (22) of at least two series connection that are arranged in condenser (12).
5. heat pump according to claim 4 is characterized in that also comprising a branch road with respect to one of them heat exchange loop (22) (24).
6. as the described heat pump of each claim among the claim 1-3, it is characterized in that comprising the heat exchange loop (22) of at least two parallel connections that are arranged in condenser (12).
7. method of utilizing the described heat pump swimming-pool water of aforementioned each claim is characterized in that comprising:
Measure the operational factor of heat pump,
Relatively this measured value of parameters and threshold value,
When this parameter value surpasses threshold value, be controlled at the switching of cryogenic fluid circulation in the heat exchange loop (22).
8. method according to claim 7 is characterized in that: according to described parameter value is to increase or reduce, and use two different threshold values with relatively comprising of threshold value, so control has hysteresis effect.
CN2006800442354A 2005-11-28 2006-11-28 Heat pump for heating swimming pool water Expired - Fee Related CN101371084B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0512028 2005-11-28
FR0512028A FR2894017B1 (en) 2005-11-28 2005-11-28 HEAT PUMP FOR HEATING POOL WATER
PCT/FR2006/002601 WO2007060343A1 (en) 2005-11-28 2006-11-28 Heat pump for heating swimming pool water

Publications (2)

Publication Number Publication Date
CN101371084A true CN101371084A (en) 2009-02-18
CN101371084B CN101371084B (en) 2010-06-23

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CN2006800442354A Expired - Fee Related CN101371084B (en) 2005-11-28 2006-11-28 Heat pump for heating swimming pool water

Country Status (8)

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US (1) US20080296396A1 (en)
EP (1) EP1957889B1 (en)
CN (1) CN101371084B (en)
AT (1) ATE474194T1 (en)
DE (1) DE602006015515D1 (en)
ES (1) ES2351707T3 (en)
FR (1) FR2894017B1 (en)
WO (1) WO2007060343A1 (en)

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CN112378133A (en) * 2020-11-06 2021-02-19 广州菲亚兰德科技有限公司 Temperature control method of swimming pool and swimming pool equipment

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CN108444074A (en) * 2018-03-05 2018-08-24 重庆美的通用制冷设备有限公司 The method for heating and controlling of heat regenerator, apparatus and system in air-conditioning
CN112378133A (en) * 2020-11-06 2021-02-19 广州菲亚兰德科技有限公司 Temperature control method of swimming pool and swimming pool equipment

Also Published As

Publication number Publication date
FR2894017A1 (en) 2007-06-01
CN101371084B (en) 2010-06-23
FR2894017B1 (en) 2008-02-15
EP1957889A1 (en) 2008-08-20
ATE474194T1 (en) 2010-07-15
DE602006015515D1 (en) 2010-08-26
US20080296396A1 (en) 2008-12-04
WO2007060343A1 (en) 2007-05-31
ES2351707T3 (en) 2011-02-09
EP1957889B1 (en) 2010-07-14

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