DE202009008708U1 - Heatable buffer by a heat pump - Google Patents

Abstract

A heatable buffer (2) which can be heated by a heat pump (2) with connections (4, 5) opening at least into an interior (3) of the buffer for feeding water to be fed in and another for its removal, in which a condenser (6) of the heat pump ( 1) in the interior (3) of the buffer memory (2) and additionally an evaporator (7) of the heat pump (1) in the interior (3) of the buffer memory (2) are arranged.

Description

The The invention described below relates to one of heat pump Heatable buffer according to the introductory part of the independent Claim.

Such from a heat pump heatable storage tanks are known in many variations, they serve the purpose of the heat pump to a higher one Temperature level, prior to its use as a service or to store heating water.

For this is the condenser of the heat pump arranged in the lower region of the interior of the buffer memory, to one as possible large volume of water of the buffer to a higher temperature bring to. Here, the disadvantage occurs that a temperature stratification is not achievable, since the entire volume of the interior of the Buffer due to the low position of the capacitor in the buffer memory on the revolution the water participates.

Consequently The invention is initially the task is based, a temperature stratification in the buffer memory to reach and maintain and then, one more Summary of the essential elements of the circulation of the heat pump in or on the cache.

The solution These tasks take place in a heatable by a heat pump buffer memory the beginning closer designated type according to the invention by the characteristics of the independent Claim.

By this inventive Arrangement results in the possibility with the arrangement of the capacitor above the evaporator only the to heat the upper area of the interior of the buffer tank, So you on one opposite the lower area much higher To bring and maintain this temperature level, because further work of the capacitor even only the upper area the water volume of the interior of the buffer storage benefits. To this effect is added the fact that the lower one Area of water volume of the interior of the buffer tank through heat the evaporator is withdrawn, the temperature is lowered, thereby the temperature spread in the interior of the buffer between raised above and below. This is the heat extracted from the lower part of the interior but not lost, but benefits the upper section again.

Further Embodiments and particularly advantageous developments of the invention result from the features of the dependent claims.

Based on 1 The drawing below an embodiment of the invention will be shown and described below.

It shows:

1 : a circuit diagram of a heatable by a heat pump buffer.

A heat pump 1 , here a compression heat pump, its electric motor 8th over a wave 25 a compressor 9 The heat pump drives, heats a greater height than width having buffer memory 2 by means of one in his interior 3 in its upper area 10 arranged capacitor 6 on. The cache 2 has connections 4 and 5 on, by means of which water to be heated in a lower area 11 of the buffer memory 2 fed and from the upper area 10 can be deducted. In the upper area 10 of the interior 3 of the buffer memory 2 is the capacitor 6 and below in the lower area 11 of the interior 3 of the buffer memory 2 is an evaporator 7 the heat pump 1 arranged, which form both heat exchangers and those via pipelines 12 to 15 with the heat pump 1 are connected. Here is the outlet of the compressor 9 over the line 12 with the top inlet 16 of the capacitor 6 whose bottom is below the inlet 16 arranged outlet 17 over the line 13 with an inlet of an expansion valve 18 connected. The top outlet 19 of the evaporator 7 is over the line 14 with an inlet of the compressor 9 , the outlet of the expansion valve 18 is over the line 15 with the inlet located below 20 of the evaporator 7 connected.

The acting as a heat exchanger condenser 6 or evaporator 7 is designed as a smooth tube heat exchanger with relatively large cross-sections.

The circuit of the heat pump 1 is from the capacitor 6 , the evaporator 7 , the compressor 9 , the expansion valve 18 and the lines connecting these elements 12 to 15 formed, of which capacitor 6 and evaporator 7 already together with parts of the pipes 12 to 15 in the interior 3 of the buffer memory 2 are arranged. The remaining parts of the circuit, namely compressor 9 and expansion valve 18 , can now be easily next to, under or over a container 21 of the buffer memory 2 in a surrounding, with a thermal insulation 22 of the buffer memory 2 provided housing 23 be introduced so that heat pump 1 and cache 2 as a unit 24 represent and can be sold together, set up and connected.

Claims (4)

From a heat pump ( 1 ) heatable buffer memory ( 2 ) with at least one interior space ( 3 ) of the buffer memory ( 4 . 5 ) for a feed of aufheizenden water and another for its removal, in which a capacitor ( 6 ) of the heat pump ( 1 ) in the interior ( 3 ) of the buffer memory ( 2 ) and in addition an evaporator ( 7 ) of the heat pump ( 1 ) in the interior ( 3 ) of the buffer memory ( 2 ) are arranged. Buffer memory ( 2 ) according to claim 1, whose capacitor ( 6 ) and its evaporator ( 7 ) are arranged one above the other, wherein the capacitor ( 6 ) above the evaporator ( 7 ) is located. Buffer memory ( 2 ) according to claim 1 or 2, whose condenser inlet ( 16 ) above the condenser outlet ( 17 ) and its evaporator outlet ( 19 ) above the evaporator inlet ( 16 ) are arranged. Buffer memory ( 2 ) according to one of claims 1 to 3, whose capacitor ( 6 ) and its evaporator ( 7 ) are designed as a smooth-tube heat exchanger with a relatively large cross-section.