SE469805B

SE469805B - 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

Info

Publication number: SE469805B
Application number: SE9103725A
Authority: SE
Inventors: H Andersson
Original assignee: Heimer Andersson Ab
Priority date: 1991-12-17
Filing date: 1991-12-17
Publication date: 1993-09-13
Also published as: WO1993012390A1; ATE155224T1; EP0616675A1; EP0616675B1; DE69220811D1; SE9103725L; SE9103725D0

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

15 20 25 30 35 40 469 eos 2 Den på ritningarna visade utföringsformen av en uppvärmningsan- läggning enligt föreliggande uppfinning är avsedd för upp- värmning av en lokal 5 med ett eller flera rum i en byggnad, som är avgränsad med linjerna A och B. Dessa kan även utgöra begränsningslinjer för ett bjälklag i lokalen 5. I bjälklaget är anordnad en rörslinga 4, vars ingångssida är kopplad till ; utgångssidan från en kompressor 1, vilken är belägen på utsidan av byggnaden A,B. Slingans 4 relativt kompressorn motsatta ände är via ett stryporgan 6 kopplat till en yttre rörslinga 2, vars relativt stryporganet 6 motsatta ände är kopplad till kompres- sorns 1 ingångssida. Rörslingan 2 utgöres av en förångnings- slinga, vilken är förlagd på i och för sig känt sätt i ett markomrâde 3 på utsidan av byggnaden A,B. Således skall rör- slingan 2 med fördel vara förlagd på frostfritt djup och med lämpligt avstånd mellan de olika parterna i slingan. Parterna visas såsom parallella delar på ritningen. Rörslingan 2 kan även utgöras av två med varandra hopkopplade parallella slingor. 15 20 25 30 35 40 469 eos 2 The embodiment of a heating system according to the present invention shown in the drawings is intended for heating a room 5 with one or more rooms in a building, which is delimited by lines A and B. These can also constitute boundary lines for a floor in the room 5. A pipe loop 4 is arranged in the floor, the entrance side of which is connected to; the output side from a compressor 1, which is located on the outside of the building A, B. The opposite end of the loop 4 relative to the compressor is connected via a throttling member 6 to an outer pipe loop 2, the opposite end of which relative to the throttling member 6 is connected to the inlet side of the compressor 1. The pipe loop 2 consists of an evaporation loop, which is located in a manner known per se in a ground area 3 on the outside of the building A, B. Thus, the pipe loop 2 should advantageously be located at a frost-free depth and with a suitable distance between the various parts of the loop. The parts are shown as parallel parts in the drawing. The pipe loop 2 can also consist of two parallel loops interconnected.

På den första delen av kondenseringsslingan 4 i bjälklaget är anordnad en värmeisolering 7, som följes av en ytterligare värmeisolering 10.On the first part of the condensing loop 4 in the floor is arranged a thermal insulation 7, which is followed by a further thermal insulation 10.

Värmeisoleringen 7 består av ett lämpligt plastskikt 8, som är rörformigt och på insidan är försett med flänsar F, som vilar mot själva röret i rörslingan 4 och mellan sig bildar luftspal- ter 9. Luftspalterna 9 bildar tillsammans med själva plast- överdraget 8 ett motstånd mot övergång av värme från köldmediet i slingan 4 till omgivningen. _ Värmeisoleringen 10 på kondenseringsslingan 4 efter Värmeisole- ringen 7 utgöres av ett plastöverdrag 11, vilket är applicerat direkt på rörväggen i slingan 4. Detta ger en mindre värmeiso- lering och större värmeövergång till omgivningen än Värmeisole- ringen 7. Genom denna successiva reducering av Värmeisoleringen på slingan 4 uppnås en viss förkondensering i rörslingan Pri' närmast kompressorns 1 utgångssida utan risk för en oaccepta- belt hög yttemperatur på bjälklaget i lokalen 5.The thermal insulation 7 consists of a suitable plastic layer 8, which is tubular and on the inside is provided with flanges F, which rest against the pipe itself in the pipe loop 4 and between them form air gaps 9. The air gaps 9 together with the plastic coating 8 themselves form a resistance against the transfer of heat from the refrigerant in loop 4 to the environment. The thermal insulation 10 on the condensing loop 4 after the thermal insulation 7 consists of a plastic coating 11, which is applied directly to the pipe wall in the loop 4. This provides less thermal insulation and greater heat transfer to the surroundings than the thermal insulation 7. Through this successive reduction of The thermal insulation on the loop 4 achieves a certain pre-condensation in the pipe loop Pri 'closest to the output side of the compressor 1 without risk of an unacceptably high surface temperature on the floor in the room 5.

I en prototyp av den på ritningarna visade utföringsformen av en uppvärmningsanläggning enligt föreliggande uppfinning har i slingan 4 tillämpats ett kopparrör med diametern 3/8" av vanligIn a prototype of the embodiment of a heating system according to the present invention shown in the drawings, a copper pipe with a diameter of 3/8 "of ordinary

Claims

10 15 20 25 30 35 40 s 469 805 cooling pipe type and length approx. 45 m. In the evaporation loop 2 two parallel loops of 15 m each and a diameter of 3/8 "have been used. The refrigerant has been R22 but also 134A can be applicable and of course Compressor 1 has an output of 30OW and the achieved heat factor has been calculated at 3.84 at the time of start-up and can today be calculated at about 3.5.Many modifications are of course possible within the framework of the following patent claims defined in the patent claims

A system for heating a room (A, B) with one or more rooms in a building, which comprises a compressor (1) for compressing a refrigerant from an evaporator loop (2), which is connected to the inlet side of the compressor (1). and which is located in an area (3) outside the room (A, B) for heat absorption from the surroundings, characterized in that the output side of the compressor (1) is connected to a loop (4) located in the room (A, B) for condensing of the refrigerant compressed in the compressor (1), that the evaporating loop (2) is connected to the condensing loop (4) and that the first part of the condensing loop (4) in the floor (5) under the room (A, B) is heat insulated ( 7.10) to counteract the transfer of heat from it to the environment.

Plant according to claim 1, characterized in that the thermal insulation is divided into a first portion (7) closest to the compressor (1) and a subsequent second portion (10).

Plant according to Claim 2, characterized in that the thermal insulation (7) on the first portion has a greater thermal insulation capacity than the thermal insulation (10) on the second portion.

Plant according to Claim 2 or 3, characterized in that the thermal insulation (7) on the first portion is a plastic cover (8) and a number of air layers (9) closest to the condensing loop (4) itself. 10 15 20 25 30 35 40 469 805 4

Plant according to claim 3, characterized in that the thermal insulation (10) on the second portion is a plastic layer (11) directly on the condensing loop (4). - w