SK662023U1 - Hydraulic module with optional plates and heating device equipped with hydraulic module - Google Patents

Abstract

A hydraulic module for a heating device, characterized in that it includes the main body (1) of the hydraulic module and at least one optional plate (80) for system heating device and/or at least one optional plated (90) for combined heating device, which is hydraulically connected to the main body (1) of the hydraulic module.

Description

The field of technology

The technical solution refers to hydraulic modules that are part of heating devices, intended for space heating and/or for the preparation of domestic hot water.

Current state of the art

Current heating devices, such as wall-mounted water heaters, are located in buildings near water distribution systems and have their input and output connection connectors arranged according to standards and norms, to ensure easy installation and maintenance. The connectors are used to connect the heating device to individual circuits for space heating and/or for the preparation of domestic hot water and are connected to the hydraulic module inside the heating device.

Hydraulic modules are manufactured as separate units, are built into the heating equipment and are primarily intended to ensure the circulation of the heat-carrying fluid through the heat exchangers and direct the heated/cold water to/from the individual circuits using a circulation pump and a switching valve. The hydraulic module can also supply heat for heating to the external hot water storage tank.

In addition to the basic function - the circulation of the heat-carrying liquid - hydraulic modules implement more and more different functions (bypass function, filling loop, pressure, flow, temperature measurement, safety safety valve, etc.), which makes their construction more and more complicated.

An example of a complicated design of a hydraulic module, assembled from three structural parts to ensure a number of functions, is the technical solution described in document WO2018202436 A1. Its biggest disadvantage is that all three structural parts, which have a diametrically different design, are needed for the proper functioning of the hydraulic module. The structural parts are interconnected and fixed to the plate exchanger, and the functions are implemented using a number of connected components. The production, assembly and maintenance of such a complicated hydraulic module is difficult.

Document DE102019215021 A1 describes a hydraulic module for a heating device to be arranged on a base device constituting a heating device, with connection lines routed through the hydraulic module for hydraulically connecting the base device to a heat source and/or cooler. The hydraulic module functions as a hydraulic interface between the heat generator and heat accumulator on the one hand and the heat source and cooler on the other. The described hydraulic module can be prepared for assembly in the installation space in a pre-assembly manner and can also be additionally expanded with other subassemblies. The hydraulic module is either arranged on the upper side of the base unit, or alternatively the hydraulic module can be arranged spatially between the storage module and the heat generator module. The hydraulic module is designed in such a way that it can alternatively be arranged spatially separately from the base unit on the wall of the installation room. Although this solution guarantees greater variability than the solution described in document WO2018202436 A1, it requires a large number of connecting accessories for various combinations of functions and devices.

The number of functions and thus components provided by hydraulic modules in current heating devices is constantly increasing. This has a great impact on the construction of hydraulic modules, which are increasingly complex and require a large number of connections.

The task of the technical solution is to create such a construction of the hydraulic module that ensures the simple implementation of optional functions without structural changes to the basic design and at the same time without the need for an excessive amount of connections.

The essence of the technical solution

The shortcomings of the state of the art are solved by the presented technical solution of the hydraulic module, which includes a basic body and at least one optional board.

The basic body and optional plates are separate structural parts that can be easily connected in a watertight manner and enable simple assembly and also maintenance of the resulting hydraulic module.

The first structural part forms the basic body of the hydraulic module and includes connections and basic functions that are required in all variants of a certain group of hydraulic modules - that is, it includes at least one circulation pump and a three-way switching valve for switching heating circuits.

SK 66-2023 U1

The second structural part - the optional board - includes optional functions that are only needed in some variants of a certain group of hydraulic modules. It includes, for example, a bypass function, a filling loop, a flow sensor and other required functions.

The optional functions depend on whether it is a so-called system heating device - such a heating device produces heat for space heating and possibly supplies hot water to the storage tank - or whether it is a so-called combined heating device - such a heating device produces heat for space heating and with the help of a secondary plate heat exchanger supplies heat for the preparation of domestic hot water.

The proposed technical solution, thanks to such a configuration, makes it possible to use the same basic body of the hydraulic module for a system heating device or a combined heating device. Optional boards are designed with the required functions in mind and can be of several types. It is possible to connect several optional boards to the resulting hydraulic module. The optional plates are hydraulically connectable to the base body of the hydraulic module and are also connectable to each other.

The integration of functions (components) into various optional boards is innovative. These are simply watertight mounted to the main body of the hydraulic module. In the case of combined heating devices, the optional plates are mounted between the base body of the hydraulic module and the plate heat exchanger.

Overview of images on drawings

The technical solution will be explained with reference to, but not limited to, images.

These show:

fig. 1 - optional board for the system heating device, designed for space heating and hot water supply for the heat exchanger located in the external water tank

fig. 2 - cross-section of the optional board from picture 1

fig. 3 - optional plate for a combined heating device, intended for space heating and preparation of domestic hot water

fig. 4 - cross-section of the optional board from picture 3

fig. 5 - the basic body of the hydraulic module with the indicated connection direction of the optional board from Figure 3

fig. 6 - connection of two different optional boards on top of each other

fig. 7 - simplified diagram showing the system heater and connection points for the optional system heater board

fig. 8 - simplified diagram showing the combined heating device and connection points for the optional board intended for the combined heating device

Implementation examples

Example 1

Hydraulic module with optional plate 80 for system heating equipment

In fig. 1 and 2 is a side view and cross-sectional view of an example of an optional system heater plate 80 that provides a bypass function in the hydraulic module. The optional board 80 is made of a suitable plastic material, has the shape of a cuboid and has integrated connection channels and connection points. The board is reinforced with ribs 3. On the shortest side surfaces there are shaped handles 2 with holes for fastening screws. The bypass valve 13 is inserted into the connection channel on the optional board 80 and is fixed with a clip 4. The bypass valve 13 is connected to the bypass channel 7.

The diagram in fig. 7 shows an exemplary system heating device 100 with a primary heat exchanger 10, a circulation pump 11, a three-way switching valve 12, and a bypass valve 13, wherein the bypass valve 13 is arranged on an optional board 80, and where the circulation pump 11 and the three-way switching valve 12 are arranged on the base body 1 of the hydraulic module.

The basic body 1 of the hydraulic module is equipped with connectors 17.170 to/from the heating water circuit and 19.190 to/from the external storage tank. Connectors 17 for the output of hot water intended for space heating and 170 (return from heating) connect the heating device to the system of radiators (or other heat exchangers) in the heated space (not shown). Connectors 19 (to the external tank) and 190 (from the external tank) connect the heating device to the heat exchanger in the external water storage tank (not shown).

SK 66-2023 U1

In the event that the external storage tank is not used, connectors 19 and 190 can be closed with blanking cap 6.

Connectors 19 and 190 can be advantageously connected to each other to ensure the bypass function.

The optional board 80 is hydraulically connectable to the basic body 1 of the hydraulic module of the heating device and is equipped with connection points A, B, C, D.

Connection point A is a connection to the channel supplying heated water from the primary heat exchanger 10.

Connection point B is a connection to the channel supplying return water to the three-way valve 12.

Connection point C is a connection to the channel supplying heated water to the heat exchanger in the external storage tank via connector 19.

Connection point D is a connection to the channel supplying return water from the external storage tank through the connector 190. The heat exchanger in the external storage tank is, for example, a snake.

Example 2

Hydraulic module with optional plate 90 for combined heating equipment

In fig. 3 and 4 is a side view and cross-sectional view of an example of an optional combination heater plate 90 that provides multiple functions in the hydraulic module.

The optional board 90 is made of a suitable plastic material, has the shape of a cuboid and has integrated connection channels and connection points. The board is reinforced with ribs 3. On the shortest side surfaces there are shaped handles 2 with holes for fastening screws. The bypass valve 13 is inserted into the connecting channel on the optional board 90 and is fixed with a clip 4. The optional board 90, in addition to the bypass valve 13, further includes connecting channels and connectors for the filling loop 14, the temperature sensor 15, and the flow sensor 16.

Fig.5 shows the assembly of the hydraulic module consisting of the optional plate 90 for the combined heating device and the basic body 1 of the hydraulic module.

The diagram in fig. 8 shows the connection of an exemplary combined heating device 200 with a primary heat exchanger 10, a circulation pump 11, a three-way switching valve 12 and a bypass valve 13. The bypass valve 13 is connected to the bypass pipe 7.

Connectors 17 (to the heating water circuit) and 170 (return from the heating water circuit) connect the heating device to the system of radiators (or other heat exchangers) in the heated space (not shown).

Connector 180 (return from the domestic hot water circuit) is connected to flow sensor 16. Connector 18 (hot water outlet to the domestic hot water circuit) is connected to the temperature sensor 15 and to the filling loop 14.

The optional plate 90 for the combined heating device is hydraulically connectable to the base body 1 of the hydraulic module of the heating device and is equipped with connection points A1, B1, E, F.

Connection point A1 is a connection to the channel supplying heated water from the primary heat exchanger 10.

Connection point B1 is a connection to the channel supplying return water to the three-way switching valve 12.

Connection point E is a connection to the channel supplying heated service water from the plate heat exchanger 5 to the hot service water circuit via connector 18.

Connection point F connection to the channel supplying cold utility water to the plate heat exchanger 5 via connector 180.

The diagram in Fig. 8 does not show the secondary plate heat exchanger 5, which is part of the combined heating device 200.

Example 3

Hydraulic module with optional plate 80 for system heating device and with optional plate 90 for combined heating device

fig. 6 shows the connection of two different optional boards (80, 90) on top of each other. By connecting such an assembly to the basic body 1 of the hydraulic module and to the plate heat exchanger 5 (not shown), another variant of the hydraulic module is created.

The optional plates (80, 90) are hydraulically connected to each other and are mechanically connected by means of grips (2) and screws (not shown).

As can be seen from the examples of implementation, the optional boards (80, 90) allow to integrate different combinations of functions and especially functions not used so far, which facilitates the change of the design of the hydraulic module in the future.

SK 66-2023 U1

To achieve variability, it is sufficient to observe the dimensions of the optional boards and the location of the connection points.

In the above examples, the connection points are designed as hollow holes for the placement of the gasket, but other methods of connection are not limited by this.

Industrial applicability

The optional plates allow easy production and assembly of hydraulic modules and, in particular, a great variability of the 10 functions provided by heating devices equipped with such hydraulic modules.

At the same time, the maintenance of the hydraulic module is simplified, since in the event of a malfunction, it is easier to diagnose the location of the malfunction and it is not necessary to replace the entire hydraulic module, but only a faulty board or a non-functioning valve or sensor.

SK 66-2023 U1

List of relationship tags

100 - system heating device

200 - combined heating device

- basic body of the hydraulic module

- fasteners for screwing

- reinforcing ribs

- clip

- plate heat exchanger

- plug

- bypass channel

- optional board for system heating device

- optional plate for combined heating device

- primary heat exchanger

- circulation pump three-way switching valve

- bypass valve

- filling loop

- temperature sensor

- flow sensor

17,170 - connectors to the heating water circuit

18,180 - connectors for the domestic hot water circuit

19,190 - connectors to the external storage tank

The arrows indicate the direction of the flow (to, from) led by the respective water circuit and (to, from) the external reservoir

A, A1 - connection to the channel supplying heated water from the primary heat exchanger

B, B1 - connection to the channel supplying return water to the three-way valve

C - connection to the channel supplying heated water to the heat exchanger in the external tank

D - connection to the channel supplying return water from the heat exchanger in the external tank

E - connection to the channel supplying heated domestic water from the plate heat exchanger to the domestic hot water circuit

F - connection to the channel supplying cold utility water to the plate heat exchanger

Claims (6)

1. A hydraulic module for a heating device, characterized in that it includes a basic body (1) of a hydraulic module and at least one optional board (80) for a system heating device and/or at least one optional board (90) for a combined heating device, which is hydraulically connectable to the main body (1) of the hydraulic module. 2. Hydraulic module according to claim 1, characterized in that the basic body (1) of the hydraulic module includes at least one circulation pump (11), a three-way switching valve (12) for switching heating circuits, connectors (17, 170) to the heating water circuit, connectors (18,180) to the domestic hot water circuit and connectors (19,190) to the external water tank. 3. Hydraulic module according to claims 1 or 2, characterized in that the bypass valve (13) is arranged on the optional board (80) for the system heating device and the optional board (80) for the system heating device includes handles (2), channels, connectors and connection points (A, B, C, D). 4. Hydraulic module according to claims 1 or 2, characterized in that the bypass valve (13) is arranged on the optional board (90) for the combined heating device and the optional board (90) for the combined heating device includes connectors for the filling loop (14) , for the temperature sensor (15) and for the flow sensor (16), handles (2), channels and connection points (A1, B1, E, F). 5. System heating device (100), with a hydraulic module according to claim (1), equipped with an optional board (80) for a system heating device, with a primary heat exchanger (10), wherein the heating device (100) is connectable to a space heating circuit and with an external storage tank using connectors (17,170, 19,190), characterized in that the connection point (A) is a connection to the channel supplying heated water from the primary heat exchanger (10), the connection point (B) is a connection to the channel supplying return water to of the three-way valve (12), connection point (C) is a connection to the channel supplying heated water to the heat exchanger in the external storage tank via connector (19), connection point (D) is a connection to the channel supplying return water from the heat exchanger in the external storage tank through connector (190). 6. A combined heating device (200), with a primary heat exchanger (10), with a plate heat exchanger (5), equipped with a hydraulic module according to claim (4), including an optional plate (90) for a combined heating device, wherein the heating device (200) ) can be connected to the space heating circuit and to the domestic hot water circuit using connectors (17,170,18,180), characterized in that the connection point (A1) is a connection to the channel supplying heated water from the primary heat exchanger (10), connection point (B1) ) is the connection to the channel supplying the return water to the three-way valve (12), the connection point (E) is the connection to the channel supplying the heated service water from the plate heat exchanger (5) to the hot service water circuit through the connector (18), the connection point (F ) is a connection to the channel supplying cold water from the service water circuit to the plate heat exchanger (5) through the connector (180).