ES2242680T3 - PROCEDURE FOR THE SERVICE OF A CAPE ACCUMULATOR. - Google Patents

Abstract

Procedure for the service of a layer accumulator (1) in which, in addition to the temperature of the incoming hot water, the temperature at a certain height of the layer accumulator (1) and the temperature is detected by a thermal probe (13) accumulator (1) is charged by feeding hot water when a certain temperature is not reached, until the temperature in the lowest zone of the accumulator has reached a certain value, characterized in that at certain times, the accumulator (1) is only charged from the highest part of the layer accumulator (1) to approximately the thermal probe (13), the load being terminated after a certain temperature has been reached in the thermal probe (13) at a certain distance from the bottom of the accumulator, after a given time, preferably 5 to 10 minutes.

Description

Procedure for the service of an accumulator of layers.

The invention relates to a process according to the preamble of claim 1.

Such a procedure is disclosed, for example, in document DE-A-19855442.

In a conventional procedure for service of a layer accumulator a heating starts after a heat requirement, which is detected in most cases by a thermal probe arranged at half the height of the layer accumulator. For this, a heat generator is connected and starts a charge pump, which sucks fresh water through of the cold water outlet and transports it to the heat exchanger hot. The heated water is then transported to the most area high layer accumulator. Normally, heating does not finish until the layer accumulator is completely heated, that is, until a temperature is exceeded determined in the lowest zone of the layer accumulator. The temperature detection in the lowest zone of the storage tank layers can be made directly using a thermal probe arranged in this area or indirectly by detecting the temperature of the hot water that enters the highest zone of the layer accumulator. However, in the case indicated last place, it is necessary to know exactly the power of heat exchanger or a heat source requesting it. From this way the temperature in the lowest zone of the layer accumulator from temperature rise conditioned by the power of the heat exchanger with a determined performance and water inlet temperature hot.

However, under certain conditions it is not It is necessary to fully charge the battery. In the afternoon, by For example, it is not necessary to charge the battery completely. A full charge of the accumulator makes it present a level of correspondingly high temperature, so they are generated correspondingly high radiation losses.

The objective of the invention is to propose a procedure of the type indicated at the beginning with which you can Avoid this inconvenience.

According to the invention, this is achieved in a procedure of the type indicated at the beginning thanks to the characterizing properties of claim 1.

Thanks to the proposed measures, it is possible heat the layer accumulator only partially, so that in case it is necessary to drink a large enough amount of water of service for certain forms of needs, without having to accept therefore the inconvenience of high losses due to radiation.

Another objective of the invention is to propose a device for performing the procedure according to the invention.

Starting from a device according to the preamble of claim 2, therefore, the properties are proposed characterizing of claim 2.

Thanks to the provision of a thermal probe in the indicated area, the load can be limited mainly to the area arranged above this thermal probe, preventing by reheating for the predetermined time that start again after a short time just by the heat radiation thus producing cycles of Frequent work of the heat source.

Thanks to the control programmer clock you can determine the period of time during which it should be performed only a partial load, however, a complete load of the accumulator in other times when there is a requirement of hot.

Thanks to the characteristics of the claim 3, the advantage is that a full load of the accumulator can be detected very easily, being able to give up control or detection of source power of heat and step.

Next, the invention will be explained more in detail with the help of the drawing, which shows schematic a layer accumulator for the realization of procedure according to the invention.

In the lowest zone of a layer accumulator 1 a cold water inlet 2 flows out, leaving this area a cold water outlet 4, in which a pump is arranged circulation 5 leading to a heat exchanger 6, which is requested by a heat source not shown. This one leads a hot water inlet 7 to the highest zone of the accumulator 1. In addition, a service water pipe 3 leaves the highest zone of accumulator 1.

In the lowest zone of accumulator 1 is arranged a thermal probe 14, which is connected by a signal line 24 with a control 10. With this control you are connected by another signal line 23 another thermal probe 13, which is arranged at a greater distance 27 from the bottom of the accumulator. It is advisable to arrange this thermal probe 13 at a height of approx. 2/3 or 3/4 of the total height.

Another thermal probe 12 is arranged in an area of the hot water inlet 7, which is intended for detect the hot water inlet temperature in the accumulator 1 and which is connected by a signal line 22 with control 10.

The control 10 is provided with a clock programmer 11, with which one or several lapses can be determined of time in which only a partial load of the accumulator 1.

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The control 10 is also connected by a signal line 21 with the pump

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When drinking service water through the pipeline service water 3, cold water enters the service through the cold water inlet 2 in the lower zone of the accumulator 1.

If there is a heat requirement, which is starts when the temperature stays below a value determined in the area of the thermal probe 13, the pump circulation 5 transports fresh water from the lowest zone of the accumulator 1 through the cold water outlet 4 to the heat exchanger heat 6, the latter being requested by a heat source not represented.

The water heated in the heat exchanger enters during this process in the highest zone of the accumulator one.

In case of a full charge, the charge does not ends until a certain temperature has been reached in the lowest zone of the accumulator 1, that is, in the zone of the probe thermal 14.

In the case of a partial charge of the accumulator 1, for example in the afternoon, the load ends at a time when set at a certain time, for example 5 to 10 min., after a predetermined temperature is reached in the probe zone thermal 13. By recharging for the predetermined time after reaching the predetermined temperature in the probe Thermal 13 is guaranteed that after finishing charging partial a very small service water outlet or radiation from heat does not lead to a new load, which would be a great inconvenient, particularly if a fire point is used as heat source for heat exchanger 6, and will drive to a greater emission of harmful substances.

This reduces losses by radiation due to the partial charge of the accumulator during times when you don't expect large service water outlets, since not all the accumulator is kept at a level of high temperature

Claims (3)

1. Procedure for the service of a layer accumulator (1) in which, in addition to the temperature of the incoming hot water, the temperature at a certain height of the layer accumulator (1) is detected by a thermal probe (13) and the accumulator (1) is charged by feeding hot water when a certain temperature is not reached, until the temperature in the lowest zone of the accumulator has reached a certain value, characterized in that at certain times, the accumulator (1) only the highest part of the layer accumulator (1) is charged to approximately the thermal probe (13), the load being terminated after a certain temperature has been reached in the thermal probe (13) at a certain distance from the bottom of the accumulator, after having After a certain time, preferably 5 to 10 minutes. 2. Device for carrying out the method according to claim 1, comprising a layer accumulator (1) with a cold water inlet that flows into the lower zone of the latter, a cold water outlet that leaves this area, which leads to a heat exchanger (6) and a hot water inlet (7), which flows into the highest area of the accumulator (1), from which a service water pipe (3) comes out, the inlet being connected of hot water with the heat exchanger (6) and at least one thermal probe (13) being arranged between the bottom and the upper end of the accumulator (1), which is connected to a control (10) and another thermal probe being provided (12), also connected to the control (10), to detect the inlet temperature, characterized in that the thermal probe (13) provided between the bottom and the upper end of the accumulator (1) is arranged between the upper third and the fourth above the height of the accumulator (1) and the control is provided with a programmer clock (11). Device according to claim 2, characterized in that another thermal probe (14) connected to the control (10) is arranged in the lowest zone of the accumulator (1).