DE7813437U1 - BOILERS, ESPECIALLY STEEL BOILERS - Google Patents

Description

- 5 - KH / 78/2

Description;

The invention relates to a heating boiler, in particular a steel boiler, which has a furnace and a water-filled, has in itself subdivided boiler room with inlet and outlet nozzles for the heating water.

Keizkessel for central heating need to run to allow nasty water, at least one inlet port for the return water and one outlet port for the Have heated water. In the case of the boilers of known design, the inlet connection and the outlet connection are for the water at the back or on the side at the back part of the boiler arranged around the boiler with the shortest possible connections, usually on the wall nasty boiler room to be able to connect the pipes to the heating network. It is disadvantageous that as a result tie operating and monitoring elements for the heating rush also be arranged at the rear of the boiler nuts. This hinders their operation, monitoring and maintenance as well as their assembly.

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In order to use the natural flow tendencies in the boiler, the inlet port for the return water in the lower part of the boiler is arranged approximately at burner height or slightly above the grate in the known boilers, while the outlet port for the heated water is at the height of the highest point of the Boiler is located. This arrangement has the disadvantage that the cooled return water cools the furnace wall in the vicinity of the inlet connection considerably, so that condensation can form on the furnace wall, especially in smaller systems that are not constantly monitored. Significant corrosion damage is then the consequence of steel boilers.

It is the object of the invention, the known boilers, in particular commercial steel boilers intended for installation by non-specialists, so that the above mentioned disadvantages can be avoided and that both better operation, maintenance and assembly as well as a besseier Inlet of the return water with a more even furnace temperature curve is achieved.

The objects are achieved in that at least one inlet connection for the water is located at the front of the boiler. By arranging at least one inlet connection

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on the front part of the heating boiler it is advantageous to simply the return line of the heating network with its Keß- and Control devices placed on the front of the boiler. In this way, the return side can be easily installed and monitored and be serviced, surprisingly it has been found that a connection to the heating network at a Routing of the return line from the ceiling of the heating room

ozn to the front of the boiler no cheaper than the known relocation is.

In an embodiment of the invention it is provided that at least one outlet for the water on the front part of the boiler is arranged. This ensures that the water exiting the boiler is also at the front can be discharged, and it has been found that the circulation pump for the heating network is not over the leading edge of the burner protrudes, so that this does not result in any increase in the space required. Particularly beneficial is that at a glance not only the function of the heating and control devices, but also the circulation pump can be monitored.

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In a further embodiment of the invention it is provided that the inlet and outlet connections for the "water at the front Part of the boiler, especially close to each other, are arranged. This configuration is advantageous achieved that all measuring and control devices, valves, pumps, etc., which are necessary for the heating circuit, on the The front of the boiler can be arranged. This is how easy operation, monitoring and control has been achieved until now Maintenance of these system parts possible. It is particularly advantageous that between the Einlaßstutζenrohr and the Outlet pipe very short distances are created, the good overflow and allow hish opportunities.

In a further embodiment of the invention it is provided that the inlet port arranged on the front side above the Fire racks, especially above the smoke exhaust pipes, in opens into the boiler room. By this measure, in particular, the corrosion behavior is further improved, since it increases a preheating exchange in the boiler takes place between cooled and heated water, which leads to a preheating of the from the upper part leads downward sinking cooler water. This means that the dew point is not reached at the Fire chamber wall avoided with certainty. Surprising-

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wisely this results in a more even temperature profile overall in the oven than in the known arrangement. Another benefit is that the return line is shortened. Overall, this results from the arrangement of the flow and return lines on the upper, front part of the boiler easier operation, maintenance and monitoring as well as increased corrosion resistance and a improved, even oven cycle.

In a further embodiment of the invention it is provided that the inlet port arranged on the front side and / or the The outlet connection is arranged in a wall part which is detachably fastened by fastening elements in the wall of the boiler room are. By arranging the inlet and outlet nozzles in a detachable wall part, the inlet and outlet lines can be easily removed Boiler can be assembled separately, so that it is possible to have all pumps, valves, measuring and control devices etc. in one pre-assembled Unite structural unit. It is still advantageously possible, despite the new position of the inlet and outlet connections ! National steel boilers can be used unchanged, as there are standard steel boilers that are in the upper part have a flow battery. The cover, which is already present, can be used if the flow-through battery is dispensed with the domestic water can simply be used for the installation of the inlet and outlet connections at the front.

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± Another embodiment of the invention provides that the inlet nozzle is a tubular guide element for the water has, which extends into the rear part of the boiler room. It is advantageous through a tubular guide element possible to direct the return water into the part of the Eeizkessel in which it can sink cheaply and safely a Eessel circulation results. The result is a good, even one Heating the water in the boiler.

In a further embodiment of the invention it is provided that the mouth of the tubular guide organ guides the inflowing water laterally downwards, in particular cut off at an angle, is trained. This further improves mixing and circulation in the boiler. the Laterally - downward line of the return water ensures that the circulation in the heating boiler continues as intended gets going and is stably maintained. This means that the water flow in the boiler can be improved with simple smocks achieved without having to accept the existing Kachteile in the known introduction.

In a further embodiment of the invention it is provided that a connection unit on the front side of the boiler for measuring the water condition and controlling the

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Water, etc. is arranged with the inlet and outlet ports is in communication and has at least one valve block connected to the inlet and outlet port lines is. By arranging a, preferably pre-assembled, connection unit, which is advantageous for a the inlet and outlet pipes share a common valve block aufweise ,, is a particularly compact measuring and control unit available, which takes up little space and is particularly clear. Durdi result in the connection unit There are considerable advantages over conventional piping, including in terms of manufacture and assembly.

In a further embodiment it is provided that the valve block has overflow lines located in the block between the inlet and outlet connection lines, with valves, preferably one throttle valve each. This design advantageously ensures that the return water and the flow water in the valve block according to the desired circuit and boiler water temperature can be mixed in doses. This means that both parts can be used in the heating circuit as well as in the boiler optimal temperature can be set. The setting is done simply through the throttle valves and at least

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a control valve that are integrated in the valve block. the
Valves can be set manually, but they can also be controlled by motors.

It is provided that the valve block is cast, in particular with cast-in overflow lines. A gas version offers both manufacturing and assembly Advantages, since the pipe connection threads, valve seats etc. can at least be preformed. This is how the Introduction of a valve block common to the inlet and outlet lines achieved the greatest possible advantage.

In a further embodiment of the invention it is provided that the centrifugal pump is arranged on the front part of the boiler, in particular directly above the valve block or the heating and control elements. This arrangement results
compared to the otherwise usual arrangement on the rear wall of the boiler a particularly favorable monitoring and
Maintenance option for the centrifugal pump, which surprisingly has shown that the centrifugal pump does not require any additional space at this, at first glance, unfavorable location, since it does not protrude over the front edge of the burner, which is the part of the boiler that protrudes furthest into the heating room forms.

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The invention is explained in more detail with reference to drawings, which show a particularly preferred embodiment and from which further details can be found.

The drawings show in detail:

Fig. 1 shows a conventional boiler with a domestic hot water battery,

2 shows a boiler according to the invention with the associated fittings,

3 shows a section through the inventive Boiler along the line III, III in Fig. 2,

4 shows a detailed view of the connection unit; With the valve block according to the invention as well

5 shows the circuit diagram of the connection unit accordingly Fig. 4.

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In Fig. 1, for comparison purposes, a boiler known Design shows, 1 denotes the burner, the flame of which is drawn in the furnace 2 and that of the multiple subdivided Boiler room 3 is surrounded, located above the furnace 2 the flue gas pipes 4 through which the flue gases are drawn off into the chimney connection socket 5. About at the burner height is in the rear wall of the inlet port 6 for the return water, while the outlet port 7 in the rear wall of the uppermost part of the boiler is arranged. The domestic water battery is in the top part of the boiler room 5 arranged, which serves as a water heater for domestic water and the domestic water generation in the not shown Domestic hot water tank supplemented. The uppermost part of the boiler room has the connecting pieces for the domestic hot water storage tank on. The flow through the boiler of known design is such that the cooled return water through the Nozzle 6 enters the boiler room 3, here the burner 1 is heated by the flame and with further heating on the flue gas pipes 4 in the boiler room 3 rises to the outlet nozzle 7 through which the heated water enters the boiler leaves.

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In contrast, Pigur 2 shows a heating boiler in the manner according to the invention Execution. Here, too, 1 denotes the burner and 2 the combustion chamber, 3 the boiler room and 4 the flue gas pipes and 5 the chimney connection piece. With regard to the external dimensions and the internal structure differs The boiler according to the invention does not differ from the boilers except by removing the domestic hot water battery known design. A boiler of known design can therefore be used without modification. ! Correspondingly are also with the boiler according to the invention on the rear wall nozzle 6 and 7 available. The nozzle 6 and 7 are, however closed by closures 12. Since the invention The boiler outlet 14 for the heated water is no longer at the highest point in boiler room 3, but somewhat below, a vent 13 is advantageously arranged in the closure flange 12 for the nozzle 7.

The Rücklaufwasper is via the inlet connection pipe 14 in the introduced upper part of the boiler 3, wherein the inlet connection pipe 14 is advantageously cut obliquely at the end. The oblique cutting results in an enlargement of the outflow opening as well as an obliquely downward one Outflow of the return water. In this way

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stands extremely easy, although the water through the inlet nozzle pipe 14 is fed to the upper part of the boiler, a circulating flow that becomes unpredictable which has been inexpensive, even oven gear.

At the top of the boiler there is a dio at the front Connection unit for measuring the water condition and regulating the water with the valve block 18 is arranged. In of this unit, which is explained in more detail in FIGS. 4 and 5, part 15 is the actuator for the control valve 21 as well as part 16 the centrifugal pump. As can be seen, the front of the boiler is not extended by the fitting Relocated towards the vome, since the part that protrudes farthest into the room is the outside of the burner 1.

In Figure 3 is a section through the upper part of the boiler room 3 is shown, from which the position and the bevel of the Inlet socket pipe 14 can be seen. Surprisingly it is completely sufficient if the tube 14 is cut off laterally and pointing downwards at its outlet end to the To influence the flow of water so that a circulating, uniform flow is established in the boiler room 3. The prerequisite for this is, among other things, that the outflow 17

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for the heated water close to the point of passage of the inlet connection pipe 14 through the front wall of the Heizkesselü lies. The thermostat fuse 11 is still in the upper part arranged, the same purpose in both the known and in the boiler design according to the invention Fulfills.

Both the inlet connection pipe 14 for the return water and the outlet connection 17 are preferably detachable Cover arranged. This enables the preassembled connection part to be attached particularly easily, which can be supplied completely assembled by the manufacturer and only by the heater operator still needs to be used easily. Furthermore, a conventional heating boiler can advantageously be used due to the cover design can be used by simply removing the domestic hot water battery.

In Figure 4, the connection unit is as a detail with the Valve block 18 shown. In the valve block are the throttle valves 19 and 20, which can be adjusted by hand and which adjust the free cross-sections of the overflow lines in the valve block 18. That way you can

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both a heating circuit and a boiler circuit can be set. This is especially true when the valve is closed 21 important, as this allows the water in the boiler to maintain its advantageous flow.

The Yentil 2, a control valve, determines the flow of heated water to the heating circuit and ensures that the necessary inlet temperature is maintained in the heating circuit will. The control valve 21 is preferably controlled by a thermostat, driven by a motor and thus enables one fully automatic heating control. Further measuring devices, such as the thermometer 22 and the manometer, are in the connection unit 23 arranged, as well as the centrifugal pump 16, the valves 24 and other measuring and control devices, in particular for lie Safety of the heating circuit, e.g. B. Pressure monitors, safety thermostats Etc.

Figure 5 shows the circuit diagram of the connection unit, from which in particular the function of the two throttle valves 19 and 20 and of the control valve 21 can be seen. According to the arrows shown, there are two circuits, one of the main current Heizungskreislau.f _t which is held by the centrifugal pump 16 directly into path and the partial flow boiler circuit

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run, which supplies the heating circuit with the necessary amount of heated water. Through this training the boiler becomes particularly suitable for low-temperature heating systems, e.g. B. for underfloor heating.

The dashed arrows in Figure 5 indicate the boiler circuit, otherwise the flow is normal if the system is kept normal vice versa in this overflow line.

In summary, it should be noted that the boiler according to the invention is a special one with simple smocks advantageous solution has been found, the components of which cooperate both the assembly and the maintenance and monitoring as well as the corrosion protection and especially the controllability of the known boilers,

The solution according to the invention is not limited to the embodiment shown, but z. B. also on an arrangement the inlet and outlet nozzle can be used laterally at the front.

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Claims (13)

Annex KH / 78/2 boilers, in particular steel boilers requirements 1. Boilers, especially steel boilers, of the one Firebox and a water-filled, divided boiler room with inlet and outlet supports for the Having heating water, characterized in that at least one inlet connection (14) for the water is located at the front of the boiler. 2. Boiler according to claim 1, characterized in that that also at least one outlet (17) for the water on the front part of the boiler is arranged. 3. Boiler according to claim 1 or 2, characterized in that the inlet (14) and Outlet nozzle (17) for the water on the front part of the boiler, especially close to each other, are arranged. 7813437 10/26/78 - 2 - ΕΞ / 78/2 4. Boiler according to claim. 1, 2 or 3 »thereby, characterized in that the inlet connection (14) arranged on the front rivet receives the refining chamber (2), especially above the smoke exhaust pipes (4), opens into the boiler room (3). 5. Boiler according to claim 1, 2, 3 or 4, characterized characterized in that the inlet connector (14) and / or the outlet connector arranged on the front side (17) in a wall part which is detachably fastened by fastening elements in the wall of the boiler room are arranged. 6. Boiler according to claim 1, 2, 3, 4 or 5, characterized characterized in that the inlet port (14) has a tubular guide element for the water, which extends into the rear rope of the boiler room (3). 7. A heating boiler according to claim 6, characterized in that the moon (14a) of the tubular guide member, the inflowing water laterally downward conductive , in particular cut off at an angle, is formed. 7813437 10/26/78 - 3 - KH / 73/2 8. Boiler according to claim T, 2, 3, 4, 5, 6 or 7, characterized in that on The front side of the boiler has a connection unit for measuring the water condition and regulating the Water, etc. is arranged, which is in communication with the inlet (Η) and outlet (17). S. boiler according to claim 8, characterized in that the terminal unit has at least one valve block (18) which is connected to the inlet (14) uji \ Auslaßstutzenleitungen (17). 10. Boiler according to claim 9, characterized in that that the valve block (16) located in the sheet metal overflow lines between the inlet and Has outlet connection lines. 11. Boiler according to claim 10, characterized in that that the overflow lines are provided with valves, preferably one throttle valve (19, 20) each are. 7813437 2S.10.78 - 4 - EH / 78/2 12. Boiler according to claim 9, 10 or 11, characterized characterized in that the valve block (18) cast, in particular with cast-in overflow lines. 13. Boiler according to one of the preceding claims, characterized in that the centrifugal pump (16) on the front part of the boiler, in particular is arranged directly above the valve block (18) or the measuring and control elements (19, 20, 21, 22, 23). - Description - 7813437 10/26/78