DE3137146A1 - "BOILER FOR PRODUCING AND STORING HOT WATER" - Google Patents

Abstract

1. Water heater for the production and storage of hot water, with a heating unit (4) arranged inside a riser pipe (6) in the lower portion of the container (1), said container being equipped with a hot water connection and a cold water connection, wherein the riser pipe (6) opens into the upper region of the container (1), that portion (housing 5) of the riser pipe (6) which receives the heating unit (4) is closed relative to the interior of the container (1), the cold water supply conduit (2) to the container (1) is equipped with a bypass conduit (11) which opens into the housing (5) for the heating unit (4), and a closure means (14) is arranged in the cold water supply conduit (2) between the container (1) and the place (17) where the bypass conduit (11) is connected to the cold water supply conduit (2), characterised in that the cold water supply conduit (2) to the container (1) is equipped in a manner known per se with a connecting means for a flexible cleaning tube (15), and a connecting means for connecting-on a flexible cleaning tube (16) is provided at the discharge side of the riser pipe (6) inside the container (1), the latter means separating the interior of the riser pipe from the interior of the container when the cleaning tube (16) is connected-on.

Description

EUREKA, Nickelweg 5, 44o7 Emsdetten

"Boiler for the production and storage of hot water"

The invention relates to a boiler for the production and storage of hot water with a A heating unit located in the lower part of the boiler and a boiler insulated against heat loss connecting the heating unit, in the upper area of the Boiler opening riser pipe and a hot water and a Ka It water connection =

A device of this type is described in CH-PS 524. By arranging the heat exchanger in lower area of the boiler and the provision of a corresponding opening in the upper area of the boiler Riser pipe ensures that even at low Heat output of the heat generator as early as possible Hot water is available =

The well-known boiler is in the lower area with a KaIt water to line and in the upper area with a Hot water tap provided «Difficulties with these arrangements are that the cleaning of the heat generator is extremely difficult because the removal of the heating unit very difficult prepares, especially if it is due to limescale The entire outside diameter of the actual Liehen heating units has also been enlarged »A cleaning the riser pipe is much more difficult, so that so far usually on such cleaning and decalcifying work is waived, but what the The efficiency of the known devices is reduced enormously will.

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The invention is based on the object. To improve the known arrangement of the boiler for generating and storing hot water so that easy decalcification and cleaning of the own heating unit and riser pipe is possible and at the same time optimal corrosion protection is achieved.

These additions on which the invention is based will become solved by the features mentioned in the claims.

Refrigerants are used as the heating medium for the heating unit from cold circuits, pump hot water, steam, oil, Solar circuits, heat recovery systems, etc. in Question.

The construction of the invention ensures a continuous feed to the heating unit via the actual cold water connection, regardless of whether cold water flows into the tank or not. If no hot water is tapped, it flows through the thermodynamic Force the heated hot water up through the riser pipe, over the cold water inlet flows cold water from the cold water area of the tank after. If hot water is drawn off and cold water flows automatically from the mains into the container, this is how cold water is supplied during hot water production directly from the pipeline network.

The heating unit and the riser pipe are cleaned in such a way that the cold water supply to the boiler is blocked and then a cleaning hose is screwed to the Kaitwasser connection. Through the hot water opening of the actual boiler, the riser pipe is also connected to a cleaning hose.

The cleaning hoses are then short-circuited with a cleaning pump and a cleaning agent container so that the cleaning agent can be pumped over.
5

Is essential in the arrangement according to the invention furthermore that, in contrast to the previously known devices, sufficient protection against corrosion is achieved is »If the heating unit is installed without electrical separation, the magnesium of the magnesium sacrificial anode is sacrificed in accordance with the absence of electrical voltage for higher-quality metal »The heat exchanger is protected, the storage tank is partially unprotected, so that then corrosion damage despite Magnesia occur around -0.pf er anode.

If the heat exchanger, as the invention, it is proposed according electrically separated from the actual boiler, the sacrificial anode operates by this construction again as intended and aer memory is optimally protected. The separation takes place in the water through the cylinder of the heating unit, which consists of an electrically non-conductive, insulating material, whereby the cold water supply line can also be through a non-conductive material.

Further advantageous embodiments of the invention Arrangement emerge from the following description with reference to the drawing.

In the drawing are essentially the state of Technology belonging circuit arrangements, dispensing lines, etc. not shown for reasons of clarity.

In the drawing, 1 denotes the actual boiler, the at 2 a cold water supply line and at 3 has a connecting piece to which the hot water tap can connect. Inside the boiler, a heating unit 4 is provided, which inside a housing 5 is arranged, to which an upwardly directed riser 6 connects, which in upper area of the boiler 1 opens. The heating unit can be provided on a boiler flange 7, which, As the drawing clearly shows, electrically from the rest of the boiler wall via an insulating layer 8 is separated.

At 9 and 1o are the lines for the heating unit 5 recognizable.

The cold water supply line separates into a bypass line 11, which leads into the interior of the housing 5, ie to the heating unit 4, and into the main line 12, which opens into the actual boiler 1 in the lower area of the same. Between the mouth of the by-pass line 11 into the line 2 and between the mouth of the conduit section 12, a closure device 14 is installed, which makes it possible to adjust an inflow of cold water directly from the To line 2 to the Hei ζ unit 4 or a feed of Water to the interior of the boiler or a circuit between the interior of the boiler and the by-pass line 11 to allow Liehen.

At 15 and 16 cleaning hoses are shown. The cleaning tube 15 can be connected to the cold water inlet pipe 4 and the cleaning tube 16 through the nozzle 3 at ^d: are connected as upper end of the riser, wherein in the short-circuit

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Cleaning hoses including a pump and a detergent container are now problem-free Clean both the heating unit 4 and the interior of the housing 5 and the riser pipe 6 can take place.

It can be seen, that by this measure a quick cleaning that can also be carried out by laypeople is possible, without having to dismantle the boiler is ^ whereby the local conditions are also problem-free enable cleaning of the boiler and the heating unit.

Characterized, that the housing 5 and the riser 6 from electrically insulating material exist ^, the Possibility created ^ that the actual heat exchanger is completely electrically separated from the boiler.

According to the invention, there is thus a hot water storage tank created with a heat exchanger - with, of course, several heating units in the boiler or hot water storage tank can be provided - the heat exchangers are structurally arranged so that without an expansion It is possible to decalcify the heat exchanger ^ while still the insulated installation of the heat exchanger guarantees optimal corrosion protection for the tank is.

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Claims (1)

Expectations: 1o 15th 2o Boiler for generating and storing hot water with a heating unit arranged in the lower part of the boiler, a boiler insulated against heat losses, a riser pipe connected to the heating unit and opening in the upper area of the boiler, and a hot water and cold water connection, thereby geke nnzei It is ensured that the cold water supply line (?) to the boiler (1) is equipped with a bypass line (11) which opens into the heating unit (4), with a closure device (14) in the cold water supply line between Boiler and mouth of the by-pass line is arranged. Device according to claim 1, characterized by the fact that the locking device (14) is designed in the form of a locking slide. 3137H6 -Z- 3. Boiler according to claim 1 and 2, characterized in that the cold water supply line (2) is equipped with a connection device for a cleaning hose (15), on the delivery side of the riser pipe C6) inside the boiler CT) a connection device for connecting a cleaning hose (16) is provided and in the area of the mouth of the riser pipe of the boiler via a corresponding flange (3) is open. 4. Device according to one or more of the preceding claims, characterized in that the wall of the heating unit around giving riser pipe (5) and the actual riser pipe (6) are made of plastic. 5. Device according to one or more of the preceding claims, characterized in that the Ka ltwasserzulauf line (2) made of electrically insulating material .consists. 6. Device according to one or more of the The preceding claims, characterized in that an insulating washer (8) is inserted between the flange closing off the opening for receiving the heating unit and the container.