EP0616675B1 - A space-heating system using a heat pump with an underfloor tube arrangement - Google Patents

A space-heating system using a heat pump with an underfloor tube arrangement Download PDF

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Publication number
EP0616675B1
EP0616675B1 EP93900489A EP93900489A EP0616675B1 EP 0616675 B1 EP0616675 B1 EP 0616675B1 EP 93900489 A EP93900489 A EP 93900489A EP 93900489 A EP93900489 A EP 93900489A EP 0616675 B1 EP0616675 B1 EP 0616675B1
Authority
EP
European Patent Office
Prior art keywords
coil
compressor
thermal insulation
premises
installation according
Prior art date
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.)
Expired - Lifetime
Application number
EP93900489A
Other languages
German (de)
French (fr)
Other versions
EP0616675A1 (en
Inventor
Heimer Andersson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HEIMER ANDERSSON AB
Original Assignee
HEIMER ANDERSSON AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HEIMER ANDERSSON AB filed Critical HEIMER ANDERSSON AB
Publication of EP0616675A1 publication Critical patent/EP0616675A1/en
Application granted granted Critical
Publication of EP0616675B1 publication Critical patent/EP0616675B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D15/00—Other domestic- or space-heating systems
    • F24D15/04—Other domestic- or space-heating systems using heat pumps
    • 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

Definitions

  • the present invention relates to an installation in accordance with the preamble of claim 1.
  • One object of the present invention is to realize a new heating installation with improved properties than hitherto known heating installations.
  • FIG. 1 is a skeleton diagram of one embodiment of a heating installation according to the present invention.
  • Fig 2 shows a cross section along the line II-II in fig 1.
  • Fig 3 shows a cross section along the line III-III in fig 1.
  • the embodiment of a heating installation according to the present invention shown on the drawings is intended for heating a premises 5 with one or more rooms in a building which is defined by the lines A and B. These may also constitute defining lines for a flooring structure in the premises 5.
  • a pipe coil 4 whose input side is coupled to the output side from a compressor 1 which is located on the outside of the building A, B.
  • the opposite end of the coil 4 relative to the compressor is coupled via a throttle member 6 to an outer pipe coil 2 whose opposite end relative to the throttle member 6 is coupled to the input side of the compressor 1.
  • the pipe coil 2 consists of a vaporization coil which is disposed in a per se known manner in a ground region 3 on the outside of the building A, B.
  • the pipe coil 2 shall advantageously be disposed at a frost-free depth and with suitable spacing between the different parts in the coil.
  • the parts are shown as parallel portions on the drawing.
  • the pipe coil 2 can also consist of two mutually interconnected parallel coils.
  • thermal insulation 7 On the first part of the condenser coil 4 in the flooring structure there is disposed a thermal insulation 7 which is followed by an additional thermal insulation 10.
  • the thermal insulation consists of a suitable plastic layer 8 which is tubular and is on the inside provided with flanges F, which rest on the pipe itself in the pipe coil 4 and therebetween form air gaps 9.
  • the air gaps 9 form together with the plastic coating 8 itself a resistance to transfer of heat from the coolant in the coil 4 to the surroundings.
  • the thermal insulation 10 on the condensation coil 4 after the thermal insulation 7 consists of a plastic coating 11 which is applied direct on the pipe wall in the coil 4. This gives lesser thermal insulation and greater thermal transfer to the surroundings than the thermal insulation 7.

Abstract

The present invention relates to an installation for heating a premises (A, B) with one or more rooms in a building, which comprises a compressor (1) for compressing a coolant medium from a vaporization coil (2) which is coupled to the input side of the compressor (1) and which is disposed in a region (3) outside the premises (A, B) for thermal absorption from the surroundings, the output side of the compressor (1) being coupled to a coil (4) disposed in the premises (A, B) for condensing the coolant compressed in the compressor (1) and that the vaporization coil (2) is interconnected to the condensation coil (4).

Description

  • The present invention relates to an installation in accordance with the preamble of claim 1.
  • Known heating installations have a relatively complicated construction which entails both high manufacturing costs and high installation costs. Moreover known heating installations entail highrunning costs in addition to which are primarily added the requisite energy consumDtion for the desired heat exchange. A previously known installation is disclosed in WO-A-9 106 811.
  • One object of the present invention is to realize a new heating installation with improved properties than hitherto known heating installations.
  • This object is satisfied according to the present invention in the installation disclosed in the introduction by employing therein the characterising features as set forth in one or more of the appended claims.
  • Through the present invention there will be achieved a new heating installation which, in comparison with previously known heating installations has a simpler construction, which contributes in considerably lower costs than for known constructions. The simpler construction which is made possible through the present invention moreover also reduces maintenance and repair costs. Through the present invention pumps or fans will no longer be required, which entails lower energy consumption and thereby affords to the installation according to the present invention considerably higher energy and/or power factor than hitherto known heating installations.
  • One embodiment of the present invention will be described more closely hereinbelow with reference to the accompanying drawings. Fig 1 is a skeleton diagram of one embodiment of a heating installation according to the present invention. Fig 2 shows a cross section along the line II-II in fig 1. Fig 3 shows a cross section along the line III-III in fig 1.
  • The embodiment of a heating installation according to the present invention shown on the drawings is intended for heating a premises 5 with one or more rooms in a building which is defined by the lines A and B. These may also constitute defining lines for a flooring structure in the premises 5. In the flooring structure, there is disposed a pipe coil 4 whose input side is coupled to the output side from a compressor 1 which is located on the outside of the building A, B. The opposite end of the coil 4 relative to the compressor is coupled via a throttle member 6 to an outer pipe coil 2 whose opposite end relative to the throttle member 6 is coupled to the input side of the compressor 1. The pipe coil 2 consists of a vaporization coil which is disposed in a per se known manner in a ground region 3 on the outside of the building A, B. Thus, the pipe coil 2 shall advantageously be disposed at a frost-free depth and with suitable spacing between the different parts in the coil. The parts are shown as parallel portions on the drawing. The pipe coil 2 can also consist of two mutually interconnected parallel coils.
  • On the first part of the condenser coil 4 in the flooring structure there is disposed a thermal insulation 7 which is followed by an additional thermal insulation 10.
  • The thermal insulation consists of a suitable plastic layer 8 which is tubular and is on the inside provided with flanges F, which rest on the pipe itself in the pipe coil 4 and therebetween form air gaps 9. The air gaps 9 form together with the plastic coating 8 itself a resistance to transfer of heat from the coolant in the coil 4 to the surroundings.
  • The thermal insulation 10 on the condensation coil 4 after the thermal insulation 7 consists of a plastic coating 11 which is applied direct on the pipe wall in the coil 4. This gives lesser thermal insulation and greater thermal transfer to the surroundings than the thermal insulation 7. Through this successive reduction of the thermal insulation on the coil 4 there is achieved a certain precondensation in the pipe coil most close to the output side of the compressor 1 without the risk of an unacceptably high surface temperature on the flooring structure in the premises 5.
  • In one prototype of the embodiment of a heating installation according to the present invention shown on the drawings a copper pipe of 7 mm (3/8") diameter of normal cooling pipe and length of approx. 45 m was applied in the coil 4. In the vaporization coil 2 two parallel coils each of 15 m and diameter 7 mm (3/8") were utilized. The coolant was R22 but 134A can also be applicable and naturally also other types of coolants. The compressor 1 has on a power output of 300 W and the achieved power factor has been calculated at 3,84 at the time of start-up and can today be calculated at approx. 3,5.

Claims (5)

  1. Installation for heating a premises (A, B) with one or more rooms in a building, which comprises a compressor (1) for compressing a coolant medium from a vaporization coil (2) which is coupled to the input side of the compressor (1) and which is disposed in a region (3) outside the premises (A, B) for thermal absorption from the surroundings, wherein the output side of the compressor (1) is coupled to a coil (4) disposed in the premises (A, B) for condensing the coolant compressed in the compressor (1), and wherein the vaporization coil (2) is interconnected to the condensation coil (4) characterized in that the first part of the condensation coil (4) in the flooring structure (5) beneath the premises (A, B) is thermally insulated (7, 10) for counteracting transfer of heat from the same to the surroundings.
  2. Installation according to claim 1, characterized in that the thermal insulation is divided into a first part (7) closest to the compressor (1) and a second part (10) following thereon.
  3. Installation according to claim 2, characterized in that the thermal insulation (7) on the first part has greater thermal insulation capacity than the thermal insulation (10) on the second part.
  4. Installation according to claim 2 or 3, characterized in that the thermal insulation (7) is a plastic coating and a number of air layers (9) closest to the condensation coil (4) itself.
  5. Installation according to claim 3, characterized in that the thermal insulation (10) on the second part is a plastic layer (11) direct on the condensation coil (4).
EP93900489A 1991-12-17 1992-12-16 A space-heating system using a heat pump with an underfloor tube arrangement Expired - Lifetime EP0616675B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9103725A SE469805B (en) 1991-12-17 1991-12-17 A heating system comprising a heat pump where the condensation loop is placed in the floor joist and where the first part of the condensation loop is provided with an insulation
SE9103725 1991-12-17
PCT/SE1992/000871 WO1993012390A1 (en) 1991-12-17 1992-12-16 A space-heating system using a heat pump with an underfloor tube arrangement

Publications (2)

Publication Number Publication Date
EP0616675A1 EP0616675A1 (en) 1994-09-28
EP0616675B1 true EP0616675B1 (en) 1997-07-09

Family

ID=20384623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93900489A Expired - Lifetime EP0616675B1 (en) 1991-12-17 1992-12-16 A space-heating system using a heat pump with an underfloor tube arrangement

Country Status (5)

Country Link
EP (1) EP0616675B1 (en)
AT (1) ATE155224T1 (en)
DE (1) DE69220811D1 (en)
SE (1) SE469805B (en)
WO (1) WO1993012390A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10429083B2 (en) 2013-08-30 2019-10-01 Qingdao Hisense Hitachi Air-conditioning Systems Co., Ltd. Multi-type air conditioner system
CN103471183B (en) * 2013-08-30 2016-01-06 青岛海信日立空调系统有限公司 Ground heating type multi-online air-conditioning system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2523701A1 (en) * 1982-03-17 1983-09-23 Bernier Jacques Linked internal and external buried heat transfer circuits - opt of plastic tubing, involve only one fluid and one compressor
DE3936332A1 (en) * 1989-10-30 1991-05-02 Brinke Matthias Henning DIRECTLY - SURFACE HEATING / COOLING SYSTEM

Also Published As

Publication number Publication date
SE9103725D0 (en) 1991-12-17
DE69220811D1 (en) 1997-08-14
ATE155224T1 (en) 1997-07-15
WO1993012390A1 (en) 1993-06-24
EP0616675A1 (en) 1994-09-28
SE469805B (en) 1993-09-13
SE9103725L (en) 1993-06-18

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