SE429997B

SE429997B - Heat recuperating plant

Info

Publication number: SE429997B
Application number: SE8003975A
Authority: SE
Inventors: A Karlsson
Original assignee: Wedholms Ab
Priority date: 1980-05-28
Filing date: 1980-05-28
Publication date: 1983-10-10
Also published as: SE8003975L

Abstract

A heat recuperation plant comprising a water-filled vessel 10 with a lower inlet 12 for cold water and an upper outlet 14 for hot water. At least one pipeline for superheated gas is arranged for heating the water in the vessel. The pipeline comprises, seen in the direction of the gas flow, at least one inner tube sling 16, 18 arranged inside an upper portion of the vessel, and at least one outer tube sling 16', 18' arranged in a closed, water-filled compartment 20 between a lower portion of the vessel and a jacket 22 surrounding this portion at a distance. At the bottom, the water-filled compartment is provided with a feeding pipe 24 for water, the temperature of which will normally be above room temperature. Above, the water-filled compartment is provided with an outlet pipe 26 for water having a temperature above the water temperature in the feeding pipe. By means of a circulating pump 32, the water is brought to circulate upwards in said compartment in counter-current around the outer tube sling 16', 18' of the vessel 10. The water in the compartment 20 preheats the water in the vessel, simultaneously with its own temperature rising due to heating from the outer tube sling. The final temperature for the service water in the vessel is regulated via the tube sling 16, 18 inside the upper portion of the vessel. A particular by-pass valve 30 is arranged between the feeding and outlet pipes 24, 26 for regulating of the preheating intensity of the water in the vessel. <IMAGE>

Description

l0 l5 än 25 30 35 deaoaàvß-5 Z aren. När radiatorsystemet ej är i drift, t.ex. under den var- ma årstiden, cirkuleras vattnet via shuntventilen direkt till- baka till pumpen. Härigenom åstadkommes en ökning av k-värdet hos vattnet i behållaren. 2 Uppfinningens principer kommer att beskrivas närmare ne- dan i form av ett föredraget utföringsexempel under hänvisning till den bifogade ritningen, på vilken den nya anläggningen åskådliggöres i vy från sidan, delvis i sektion. l0 l5 än 25 30 35 deaoaàvß-5 Z aren. When the radiator system is not in operation, e.g. during the hot season, the water is circulated via the shunt valve directly back to the pump. This results in an increase in the k-value of the water in the container. The principles of the invention will be described in more detail below in the form of a preferred embodiment with reference to the accompanying drawing, in which the new plant is illustrated in side view, partly in section.

Den på ritningen âskådliggjorda vattenfyllda behållaren l0 innefattar ett inlopp l2 vid den undre änden och ett utlopp l4 vid den övre änden. Vid inloppet tillföres kallvatten till be- hâllaren och efter uppvärmning av vattnet till avsedd tempe- ratur kan detta avtappas vid utloppet. Temperaturskiktningen i behållaren l0 medför att tappvattnet i anslutning till ut-0 loppet l4 vid behållarens övre ände alltid har den högsta tem- peraturen. För att temperaturskiktningen ej skall störas är botteninloppet försett med en icke visad radiell diffusor. hﬂ0ppen15,1g är via en rörledning driftmässigt kopplad till ett.eller flera icke visade kompressorkyla§grë9àt= VëYVld bßhållﬂfeﬂ och de därtill hörande komponenterna kan sägas utgöra konden- sorsidan hos en värmepump. På ritningen visas den nya anord- ningens rörledning i form av två rörslingor l6, l6', l8, l8' men antalet slingor är inte alls kritiskt för uppfinningen. körledningen innefattar på konventionellt sätt ett gasformigt köldmedium, t.ex. arcton eller freon. Inuti ett övre parti av behållaren l0 är de båda med köldmediet fyllda rörslingorna ggspiralformigt anordnade, varvid den ena slingan l8 befinner sig inuti den andra. Vid ett undre parti av behållaren fort- Allsätter rörslingorna l6', l8', likaledes i spiralform g i ett utrymme 20, vilket av- gränsas av själva behållaren l0 och en utanför denna med mel- ~lanrum anordnad metallmantel 22.The water-filled container 10 illustrated in the drawing includes an inlet 12 at the lower end and an outlet 14 at the upper end. At the inlet, cold water is supplied to the tank and after heating the water to the intended temperature, this can be drained at the outlet. The temperature stratification in the container 10 means that the tap water in connection with the outlet 14 at the upper end of the container always has the highest temperature. In order not to disturb the temperature stratification, the bottom inlet is provided with a radial diffuser (not shown). h ﬂ0 ppen15,1g is via a pipeline operationally connected to one.or several not shown compressor cooling§grë9àt = VëYVld bßhåll ﬂ fe ﬂ and the associated components can be said to form the condenser side of a heat pump. The drawing shows the pipeline of the new device in the form of two pipe loops 16, 16 ', 16, 18', but the number of loops is not at all critical for the invention. the overhead contact line comprises in a conventional manner a gaseous refrigerant, e.g. arcton or freon. Inside an upper part of the container 10, the two tubing loops filled with the refrigerant are arranged in a spiral-shaped manner, one loop 18 being located inside the other. At a lower part of the container, the pipe loops 16 ', 18', likewise continue in spiral shape g in a space 20, which is delimited by the container 10 itself and a metal jacket 22 arranged therebetween outside it.

Det nämnda utrymmet 20 är slutet och fyllt med vatten, som via en inmatningsledning 24 vid utrymmets nedre del passerar mot utmatningsledningen 26 vid den övre delen. Det_bör obser- veras att vattnet i det nämnda.utrymmet 20 cirkulerar i mot- leström kring rörslingorna l5', l8', vilket ger maximal utnyttj- ningsgrad hos anläggningen. In- och utmatningsledningarna 24, lO 15 20 25 8003975-'3 26 är, ehuru detta inte visas på ritningen, anslutna till ett radiatorsystem för uppvärmning av bostadshus eller arbetslo- kaler. Parallellt med de icke visade radiatorerna finns en radiatorshuntledning 28, vars genomströmningsmängd regleras av shuntventilen 30. En cirkulationspump 32 är inkopplad i anslutning till inmatningsledningen 24 för cirkulering av vatt- net i radiatorsystemet.The said space 20 is closed and filled with water, which passes via a supply line 24 at the lower part of the space towards the discharge line 26 at the upper part. It should be noted that the water in the said space 20 circulates in motel current around the pipe loops l5 ', l8', which gives the maximum degree of utilization of the plant. The supply and discharge lines 24, 10 15 20 25 8003975-'3 26 are, although not shown in the drawing, connected to a radiator system for heating residential buildings or work premises. In parallel with the radiators (not shown), there is a radiator shunt line 28, the flow rate of which is regulated by the shunt valve 30. A circulation pump 32 is connected in connection with the supply line 24 for circulating the water in the radiator system.

Hela vattenbehållaren är isolerad på konventionellt sätt men detta har inte åskådliggjorts på ritningen.The entire water tank is insulated in a conventional manner, but this has not been illustrated in the drawing.

Det i behållaren l0 via inloppet l2 inmatade vattnet har normalt en temperatur av mellan approximativt 5-20°C och tapp- vattnet vid den övre änden erhåller normalt en temperatur av mellan approximativt 50-8006. Den via rörledningen l6, 18 in- matade gasen har en temperatur av mellan approximativt 60-ll0°C och gastemperaturen då rörslingan lämnar behållaren lO upp- går till approximativt 30~45°C. Det till utrymmet 20 i inmat- ningsledningen 24 passerande vattnet håller en temperatur av approximativt 30-4500 och vattentemperaturen i utmatningsled- ningen 26 från utrymmet håller en temperatur av approximativt 35-6o°c.The water fed into the container 10 via the inlet 12 normally has a temperature of between approximately 5-20 ° C and the tap water at the upper end normally obtains a temperature of between approximately 50-8006. The gas fed via the pipeline 16, 18 has a temperature of between approximately 60-110 ° C and the gas temperature when the pipe loop leaves the container 10 amounts to approximately 30 ~ 45 ° C. The water passing to the space 20 in the supply line 24 maintains a temperature of approximately 30-4500 and the water temperature in the discharge line 26 from the space maintains a temperature of approximately 35-6o ° c.

Modifikationer av den ovan i samband med ritningen beskriv- na anläggningen kan naturligtvis utföras inom uppfinningens ram. Beskrivningen är endast avsedd att ange principerna för den nya värmeâtervinningsanläggningen.Modifications of the plant described above in connection with the drawing can of course be carried out within the scope of the invention. The description is only intended to state the principles for the new heat recovery plant.

Claims

1. eorazsWse-s

2. PÅTENTKRÅV g l. »Heat recovery plant comprising a water? filled container (l0) with one inlet (l2) for cold water and an upper outlet_ (lfl_) for hot water, wherein at least one pipeline intended for superheated gas is arranged for heating the water in the container, characterized in that the pipe - seen in the gas supply direction - comprises at least one inner pipe loop (16, 18), arranged inside an upper part of the container, and at least one outer pipe loop (16 ', 18'), arranged in a closed water-filled space (20) (between a lower part of the container (10) and a portion (22) surrounding this space at intervals, said 'water-filled space (20) at the bottom being provided with a supply line (24) for water with a temperature which normally exceeds the room temperature , and at the top with a discharge line (26) for water with a temperature which is higher than the water temperature in the supply line. A plant according to claim 1, characterized in that several pipe loops (16, 18; 16 ', 18') are connected in parallel in a stirrer dningen. '

3. Plant according to claim 1 or 2, characterized in that the pipeline is connected to one or more compressor cooling units and that the supply and discharge lines (24 and 26, respectively) of said space (20) are included in a - radiator system , in which a circulation pump (32) is arranged 2 * to effect the circulation of the water.

Installation according to claim 3, characterized in that the radiator system comprises a shunt valve (30), which via a radiator shunt line (28) enables optimization of the heat transfer number from the pipe loop (16 ', 18') to the water. in said space (20) and from the water in said space to the water in the container (l0).

Plant according to one of Claims 1 to 4, characterized in that the entire container (10) is enclosed by insulation.