DE202017102399U1 - Hot water system for storing and distributing warm water - Google Patents

Abstract

A hot water system (12) for storing and distributing hot water, in particular on a household heating (10), with a hot water storage device (38) for storing warm water, which has a first storage area (40) and a second storage area (42), and with a hot water distribution device (68) having a first storage port (100) for connection to the first storage area (40) and a second storage port (102) for connection to the second storage area (42), the at least one consumer port (80) for connecting a Hot water consumer (28) having at least one utility connection (82) for connecting a hot water supply (14) having a valve arrangement (112, 124, 140) for selectively switching hydraulic paths between the storage ports (100, 102), the at least one Consumer terminal (80) and the at least one utility connection (82), and having a pump (114, 126, 142), which together with the valve assembly (112, 124, 140) is adapted to circulate hot water within the hot water storage device (38).

Description

Background of the invention

The invention relates to a hot water system for storing and distributing hot water, in particular on a commercial or household heating, with a hot water storage device and with a hot water distribution device for distributing water between a hot water storage device, at least one hot water consumer and at least one hot water supplier.

Generic hot water systems are used to provide households or businesses with warm water for washing and heating purposes. The hot water systems are usually part of the heating provided there. They deliver warm water from at least one hot water supplier to at least one hot water consumer. Hot water suppliers may be in particular Brennheizanlagen or heat pump systems. Hot water consumers can be service water outlets, such as faucets, or radiators and floor heating.

In addition, modern heating systems for commercial and domestic use increasingly include solar systems and photovoltaic systems. By means of solar systems, sunlight can be used directly for heating a heat carrier. In photovoltaic systems, electricity is generated with sunlight. The amount of electricity that can be used to heat water depends on many factors. Sometimes there is a lot of power available as an overcurrent. Sometimes, however, only comparatively little overcurrent is available, so that correspondingly only little heat input into hot water can be achieved.

Underlying task

The invention has for its object to make a hot water system of the type mentioned technically functional and economic in terms of usable amount of overcurrent.

Inventive solution

This object is achieved with a hot water system for storing and distributing hot water, especially on a commercial or household heating, which is provided with a hot water storage device for storing warm water. The hot water storage device has a first storage area and a second storage area. Furthermore, a hot water distribution device is provided which has a first storage port for connection to the first storage area and a second storage port for connection to the second storage area. In addition, at least one consumer port for connecting a hot water consumer, at least one utility connection for connecting a hot water supplier, a valve arrangement for selectively switching hydraulic paths between the storage ports, the at least one consumer port and the at least one utility port and a pump is provided, which together with the valve assembly is set up to circulate hot water within the hot water storage device.

The invention is also directed to a use of such a hot water system according to the invention in a commercial or household heating.

According to the invention, a hot water system is provided in which a hot water storage device is selectively coupled to a hot water distribution device. The hot water distribution device is provided as a compact unit with various connections and with a valve assembly and with a pump. The valve assembly is designed not only to switch from different hydraulic paths between the terminals, but it is specially tuned together with the pump that can be pumped inside the hot water storage hot water.

In this case, hot water in particular is circulated from the first storage area into the second storage area by means of the pump when the valve arrangement is correspondingly switched. In this way, even with little available excess energy within the hot water storage device in the first storage area, a comparatively small storage volume can be heated to a comparatively high temperature. This comparatively small volume can then be used for hot tap water. Alternatively, this hot water can also be pumped with the aid of the device according to the invention in the second storage volume, so that again heated in the first storage area and there residual energy can also be used with low energy or temperature level for heating the hot water storage device.

Advantageous developments of the invention

In an advantageous embodiment of the invention, the first storage area is provided with an electric heater, in particular in shape an electric heating rod, which is preferably steplessly regulated. The second storage area is advantageously designed as a stratified storage, in particular with a stratification tube. In the first storage area so excess energy can be fed, which is in the form of electric current. Due to the stepless controllability of this electric heater, even the smallest amounts of excess energy can be absorbed in the first storage area. In this case, this first memory area as described above is relatively small in the inventive solution compared to the total memory. Thus, in this small storage area relatively quickly higher water temperatures can be achieved, which can be used in the following sense especially for hot water. At the same time, however, with the pumping according to the invention into the second storage area, the first storage area can also be brought back to a lower energy level in order then to feed in excess electrical energy there again.

Preferably, the electric heater is further configured to be connected to a photovoltaic system. With the arrangement of this type, the excess electrical energy available from the associated photovoltaic system can be converted into thermal energy and stored in a meaningful way.

The first storage area is advantageously arranged above the second storage area, and in particular preferably the first and the second storage area are largely but not completely separated from each other in a fluid-conducting manner. The first storage area arranged above the second storage area always collects the water with the highest temperature, because warm water is known to rise and collect in a water reservoir in its upper area. In a largely but not complete separation of the two storage areas of this thermally induced exchange of water is still possible. At the same time, however, it is ensured that as little as possible mixing of water takes place between the storage areas. From the then always maximum warm, first storage area can be correspondingly optimally possible warm water, especially as hot service water can be removed.

The pump is inventively preferably together with the valve assembly adapted to further promote hot water from the hot water storage device to the at least one consumer port. The pump of this type thus assumes a dual function, whereby the overall arrangement is simplified in terms of the number of components and thus to make more cost-effective.

Further, the pump is advantageously configured together with the valve arrangement to further promote hot water from the at least one utility connection to the hot water storage device and / or the at least one consumer connection. The inventively provided pump thus assumes the functions of filling and emptying of the memory itself.

The valve arrangement and in particular also the pump are particularly advantageously arranged in a cubic housing, wherein the storage port is formed on one side of the housing, whereas the at least one utility port and the at least one consumer port are formed on one of the other sides of the housing. Such a cubic housing forms a "distribution box" in which all relevant functions are integrated in a compact, tidy and space-saving manner. In particular, such an arrangement is also very easy to assemble, operate and maintain.

Advantageously, a control arrangement for controlling the valve arrangement is further provided on the hot water system according to the invention, which is operatively coupled to measuring devices on the hot water storage device to which at least one hot water consumer and at least one hot water supplier. Measuring devices are in particular temperature measuring devices. With the integration of measuring devices, control devices, switching devices and conveying devices, all required functions can be mapped in just one structural unit.

Moreover, an operating arrangement for manually operating the control arrangement by an operator and / or a display arrangement for displaying measured values of the measuring devices for an operator is preferably provided on the hot water system according to the invention. The operating arrangement completes the such assembly according to the invention advantageous so that it can be operated by ordinary operators without any special prior knowledge in a simple manner.

Brief description of the drawings

An exemplary embodiment of the solution according to the invention will be explained in more detail below with reference to the attached schematic drawings. It shows:

1 a aufrochende front view of a household heating with a hot water system according to the invention,

2 a hot water distribution device of the hot water system according to 1 and

3 a hot water storage device according to the hot water system 1 ,

Detailed description of the embodiment

In the 1 to 3 is a household heating 10 illustrates that as essential assemblies a hot water system 12 as well as various hot water suppliers 14 includes. As a hot water supplier 14 are a solid fuel boiler 16 as well as a solar system 18 intended. The solar system 18 is with solar modules 20 provided where solar energy can be introduced in the form of heat in a liquid heat carrier. As an additional provider 22 is at the household heating 10 a photovoltaic system 24 connected. The photovoltaic system 24 is with photovoltaic modules 26 provided that solar energy can be converted into electricity.

As a hot water consumer 28 is at the hot water facility 12 a heating system 30 connected. The heating system 30 is with a first heating circuit 32 and a second heating circuit 34 designed in particular in each case (not shown) radiator for heating rooms of an associated household are. As another hot water consumer 28 is at the hot water facility 12 a fresh water system 36 connected. At the fresh water plant 36 For the household hot drinking water and service water, especially for bathing and showering, can be taken.

To the hot water system 12 further includes a hot water storage device 38 in the form of a cylindrical, tank-like and thereby upright storage container with a first, upper storage area 40 and a second lower memory area 42 , The storage areas 40 and 42 are by means of a substantially horizontally extending in the storage tank separating plate 44 separated. The separating plate 44 separates the two memory areas 40 and 42 largely, but not completely fluid-conducting from each other.

In the first, upper memory area 40 is an electric heater 46 arranged in the form of an electric heating rod, which is substantially horizontal in the lower portion of the storage area 40 extends. The heating element is connected to a power regulator 48 coupled electrically conductive and can be controlled by means of this infinitely. The electric heater 46 or their power controller 48 is doing with electric power of the photovoltaic system 24 provided.

In the second, lower memory area 42 is standing arranged a stratification tube 50 , With this layering tube 50 is the second memory area 42 designed as a stratified storage in which water of different temperatures can be stored in layers one above the other. The highest temperature water is at the top due to the thermal buoyancy of warm water and the lowest temperature water is at the bottom of the stratified tank.

At the hot water storage device 38 a total of eight inlet and outlet pipes are arranged. From these pipes leads a first inlet pipe 52 and a first outlet pipe 54 each in the upper storage area 40 , A second outlet pipe 56 leads out of the upper part of the stratification tube 50 out. A second inlet pipe 58 leads into the middle part of the stratification pipe 50 into it. A third inlet pipe 60 and a fourth inlet pipe 62 lead into the lower part of the stratification tube 50 into it. Finally, lead a third outlet pipe 64 and a fourth outlet tube 66 from the lowest section of the lower memory area 42 below the stratification tube 50 out.

At the hot water system 12 is also a hot water distribution device 68 intended. This has a first heating circuit connection 70 and a second heating circuit connection 72 on. Furthermore, a solid fuel boiler connection 74 , a solar system connection 76 and a fresh water system connection 78 intended. The connections 70 . 72 and 78 thus each form a consumer connection 80 for connecting one heat consumer each, while the connections 74 and 76 one utility connection each 82 for connecting each of a hot water supplier to the hot water distribution device 68 represent.

In the hot water distribution device 68 Further, manifolds are arranged, namely a first manifold 84 , a second manifold 86 , a third manifold 88 , a fourth manifold 90 , a fifth manifold 92 , a sixth manifold 94 , a seventh manifold 96 and an eighth manifold 98 , From these collecting pipes form the headers 84 and 86 each a first storage port 100 to connect to the first memory area 40 the hot water storage device 38 while the headers 88 . 90 . 92 . 94 . 96 and 98 each a second storage port 100 to connect to the second memory area 42 the hot water storage device 38 form.

Specifically, the first collection pipe 84 to the first inlet pipe 52 connected. The second manifold 86 is at the first outlet pipe 54 connected. The third manifold 88 is at the second outlet pipe 56 connected. The fourth manifold 90 is to the second inlet pipe 58 connected. The fifth manifold 92 is at the third inlet pipe 60 connected. The sixth manifold 94 is at the fourth inlet pipe 62 connected. The seventh manifold 96 is at the third outlet pipe 64 connected, and the eighth manifold 98 is finally to the fourth outlet pipe 66 connected.

The first collection pipe 84 serves as the first, hot flow for the solid fuel boiler 16 and the solar system 18 , The second manifold 86 serves as a flow for the fresh water system 36 , The third manifold 88 serves as a flow for the heating system 30 or the two heating circuits 32 and 34 , The fourth manifold 90 serves as the second, medium-warm flow for the solid fuel boiler 16 and the solar system 18 , The fifth manifold 92 serves as return for the fresh water system 36 , The sixth manifold 94 serves as return for the heating system 30 or the two heating circuits 32 and 34 , The seventh manifold 96 serves as return for the solar system 18 and the eighth manifold 98 serves as return for the solid fuel boiler 16 ,

The hot water distribution device 68 is also with a fresh water system circulation pump 104 , a fresh water heat exchanger 106 , a fresh water system valve assembly 108 and a freshwater pump 110 fitted.

The freshwater system valve arrangement 108 is to the manifold 84 , which is a flow for the fresh water system 36 forms, and to the manifold 92 which is a return for the fresh water system 36 forms, connected. With the fresh water system valve arrangement 108 is at the same time a valve assembly 112 created to provide hot water within the hot water storage facility 38 to pump. At the same time with the fresh water pump 110 at the same time a pump 114 created to provide hot water within the hot water storage facility 38 to pump. The water to be pumped through the first inlet pipe 52 from the first storage area 40 the hot water storage device 38 taken and through the manifold 92 and the third inlet pipe 60 in the lower area of the stratification tube 50 and thus in the lower, second memory area 42 circulated.

Furthermore, in the hot water distribution device 68 a first heating circuit circulation pump 116 , a first heating circuit mixer 118 , a second heating circuit circulation pump 120 and a second heating circuit mixer 122 intended. With the heating circuit mixers 118 and 122 is such a valve arrangement 124 created to hot water from the hot water storage device 38 to at least one of the consumer connections 80 namely the first heating circuit connection 70 and the second heating circuit connection 72 to promote. The heating circuit circulation pumps act here 116 and 120 again each as a pump 126 to get the hot water from the hot water storage tank 38 to at least one of the consumer connections 80 to promote. The hot water is through the second outlet pipe 56 from the upper part of the stratified charge tube 50 the lower memory area 42 the hot water storage device 38 taken and through the manifold 88 the two heating circuits 32 and 34 supplied as a supply. The return of water as return flow takes place from the two heating circuits 32 and 34 into the manifold 94 and from there through the fourth inlet pipe 62 in the lower part of the stratified charge tube 50 ,

In the hot water distribution device 68 are also a solar plant circulation pump 128 , a solar system heat exchanger 130 , a solar system valve assembly 132 , a solar system pump 134 , a solid fuel boiler circulation pump 136 and a solid fuel boiler mixer 138 installed. The solar system valve arrangement 132 and the solid fuel boiler mixer 138 each form a valve assembly 140 to get hot water from the solar system connection 76 or the solid fuel boiler connection 74 than ever one of the utility connections 82 to the hot water storage device 38 and / or at least one of the consumer connections 80 to promote. At the same time, the solar system pump act 134 and the solid fuel boiler circulation pump 136 than ever a pump 142 to get the hot water from the at least one utility connection 82 to the hot water storage device 38 and / or at least one of the consumer connections 80 to promote.

The water distribution device 68 is with a cubic case 144 designed in which all components 70 to 142 are housed. Here are the connections 70 . 72 . 74 . 76 and 78 on a first page 146 of the housing 144 , namely the top, and the connections for the headers 84 . 86 . 88 . 90 . 92 . 94 . 96 and 98 on a second page 148 of the housing 144 , namely related to 1 right side, trained. The headers 84 to 98 each extend transversely and substantially horizontally through the entire housing 144 through and protrude on both side walls of the housing 144 out of this, leaving them on the opposite, third side 150 of the housing 144 can be connected.

In the lower part of the housing 144 there is a control arrangement 152 in the form of an electrical circuit board. The board is equipped with various first measuring devices 154 at the hot water storage device 38 electrically coupled, which are designed in particular as temperature sensors. Furthermore, second, such measuring devices 156 at the hot water consumers 28 and third, such measuring devices 158 at the hot water suppliers 14 be installed. The control arrangement 152 is doing with an operating arrangement 160 for manual operation of the control arrangement 152 and with a display arrangement 162 in the form of a display for displaying measured values of the measuring devices 154 . 156 and 158 operationally coupled. The operating arrangement 160 and the display arrangement 162 are located in the upper, front, middle part of the cubic housing 144 and there are for an operator of the hot water distribution device 68 easy to reach and advantageous to see.

Finally, it should be noted that all the features that are mentioned in the application documents and in particular in the dependent claims, despite the formal reference to one or more specific claims, even individually or in any combination should receive independent protection.

LIST OF REFERENCE NUMBERS

10

household heating

12

Warm water system

14

Warm water utilities

16

Solid fuel boiler

18

solar system

20

solar module

22

accessory provider

24

photovoltaic system

26

photovoltaic module

28

Hot water consumers

30

heating system

32

first heating circuit

34

second heating circuit

36

Fresh water system

38

Hot water storage device

40

first storage area

42

second memory area

44

Divider

46

electric heating

48

power controller

50

stratification pipe

52

first inlet pipe

54

first outlet pipe

56

second outlet pipe

58

second inlet pipe

60

third inlet pipe

62

fourth inlet pipe

64

third outlet pipe

66

fourth outlet pipe

68

Hot water distributor

70

first heating circuit connection

72

second heating circuit connection

74

Solid fuel boiler connection

76

Solar system connection

78

Fresh water system connection

80

consumer connection

82

utilities connection

84

first manifold

86

second manifold

88

third manifold

90

fourth manifold

92

fifth manifold

94

sixth manifold

96

seventh collecting pipe

98

Eighth collection tube

100

first storage port

102

second storage port

104

Fresh water system circulation pump

106

Fresh water heat exchanger

108

Fresh water system valve assembly

110

Fresh water pump

112

valve assembly

114

pump

116

first heating circuit circulation pump

118

first heating circuit mixer

120

second heating circuit circulation pump

122

second heating circuit mixer

124

valve assembly

126

pump

128

Solar system circulation pump

130

Solar system heat exchanger

132

Solar system valve assembly

134

Solar system pump

136

Solid fuel boiler circulating pump

138

Solid fuel boiler mixer

140

valve assembly

142

pump

144

cubic housing

146

first side of the housing

148

second side of the housing

150

third side of the case

152

control arrangement

154

first measuring device to hot water storage device

156

second measuring device to hot water consumers

158

third measuring device to hot water supplier

160

operating arrangement

162

display assembly

Claims (10)

Hot water system ( 12 ) for storing and distributing warm water, in particular on a domestic heating ( 10 ), with a hot water storage device ( 38 ) for storing warm water containing a first storage area ( 40 ) and a second memory area ( 42 ), and with a hot water distribution device ( 68 ), which has a first storage port ( 100 ) for connection to the first memory area ( 40 ) and a second memory port ( 102 ) for connection to the second memory area ( 42 ) having at least one consumer connection ( 80 ) for connecting a hot water consumer ( 28 ) having at least one utility connection ( 82 ) for connecting a hot water supplier ( 14 ), which has a valve arrangement ( 112 . 124 . 140 ) for optional switching of hydraulic paths between the storage ports ( 100 . 102 ), the at least one consumer connection ( 80 ) and the at least one utility connection ( 82 ), and a pump ( 114 . 126 . 142 ), which together with the valve arrangement ( 112 . 124 . 140 ) is arranged to provide hot water within the hot water storage device ( 38 ) umzupumpen. Hot water installation according to claim 1, characterized in that the first storage area ( 40 ) with an electric heater ( 46 ), which in particular is steplessly regulated, and the second memory area ( 42 ) is designed as a layer memory, in particular with a laminating tube ( 50 ). Hot water installation according to claim 2, characterized in that the electric heating ( 46 ) is adapted to a photovoltaic system ( 24 ) to be connected. Hot water installation according to one of claims 1 to 3, characterized in that the first storage area ( 40 ) above the second memory area ( 42 ) is arranged and in particular the first and the second memory area ( 40 . 42 ) are largely but not completely separated from one another in a fluid-conducting manner. Hot water installation according to one of claims 1 to 4, characterized in that the pump ( 114 . 126 . 142 ) together with the valve arrangement ( 112 . 124 . 140 ) is arranged to also hot water from the hot water storage device ( 38 ) to the at least one consumer connection ( 80 ) to promote. Hot water installation according to one of claims 1 to 5, characterized in that the pump ( 114 . 126 . 142 ) together with the valve arrangement ( 112 . 124 . 140 ) is arranged, further hot water from the at least one utility connection ( 82 ) to the hot water storage device ( 38 ) and / or the at least one consumer connection ( 80 ) to promote. Hot water installation according to one of claims 1 to 6, characterized in that the valve arrangement ( 112 . 124 . 140 ) and especially the pump ( 114 . 126 . 142 ) in a cubic housing ( 144 ) and the memory port ( 100 . 102 ) on one side ( 148 ) of the housing ( 144 ), whereas the at least one utility connection ( 82 ) and the at least one consumer connection ( 80 ) on one of the other pages ( 146 ) of the housing ( 144 ) are formed. Hot water installation according to one of claims 1 to 7, characterized in that a control arrangement ( 152 ) for controlling the valve arrangement ( 112 . 124 . 140 ), which is operationally equipped with measuring equipment ( 154 . 156 . 158 ) at the hot water storage device ( 38 ) to which at least one hot water consumer ( 28 ) and at least one hot water supplier ( 14 ) is to be coupled. Hot water system according to claim 8, characterized in that an operating arrangement ( 160 ) for manually operating the control arrangement ( 152 ) by an operator and / or a display device ( 162 ) for displaying measured values of the measuring devices ( 154 . 156 . 158 ) is provided for an operator. Use of a hot water system ( 12 ) according to one of claims 1 to 9 in a household heating ( 10 ).

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