DE8914016U1 - Central storage combination for domestic hot water supply in the smallest space - Google Patents

Description

Title (technical
Description as in the application, field 6):

Type of the subject matter of the application:

State of the art:

Criticism of the stand
Technology &idigr;

Task:

Solution (reproduction of the characterizing part of the claim) Central storage combination San-Ko / ZSK

The invention relates to a domestic hot water preparation system for supplying hot water to sanitary facilities.

Large domestic hot water systems have been around for many years and are used for sanitary facilities. The smallest systems are equipped with a 200 litre storage tank.

According to section 5.1 of the storage tank systems used so far, the large storage tanks are used. They are needed to mix the temperature differences of the unbalanced hot water circuits, as well as the temperatures/fluctuations caused by the temperature control circuit, to the domestic hot water temperature.

The invention is based on the object of eliminating the above-mentioned disadvantages in a storage system and of creating a system which covers the required demand with small amounts of heating water and the smallest possible storage of hot water.

The goal has been achieved:

-due to the smallest storage volume and smallest space requirement for the entire system

-The hot water outlet temperature of the plate heat exchanger corresponds to the system temperature through the fast-acting heat quantity regulator -through the separate routing of the individual hot water flows and their balancing through the adjustment throttles -Switching of the pumps through the changeover thermostat mounted in the lowest storage point.

-Maintaining the very good stratification through the baffle plate mounted in the storage water inlet.

Description of an .;,. example:

San-Ko / ZSK I

1. Plate heat exchanger in series

Performance
Primary temperatures
Secondary temperatures : 20
: 60
: 10 KW
- 35 ^r C
- 55 ^C C Storage Storage volume : 50 ltr. Heat quantity regulator Temperature range
K value : 40
• 1 9 - 60 ^e C Charging pump Working pressure
Water quantity : 0.4
: 360 bar
ltr. / h

5. Changeover thermostat
Temperature range

6. Adjustment throttles

30 - 60 C

6.1 Water quantity 6.37 1 > ' min 6.2 Water quantity 6.37 1 > ' min 6.3 Water quantity 3.33 1 / ' min Hot water temperature : 54 ^rC Operating pressure WW side 10bars Operating pressure HW side : 10bars Heating time (storage) 12 min. Dispensing capacity . 9.7 1 / min Tapping time (max) : 15 minutes. Domestic water temp. : 10"C Heating water return (min) 25"C Heating water return (max) : 40"C

Reproduction of the characterizing part of the subclaims: The existing domestic water differential pressure controls the heating water flow of the plate heat exchanger 1 via the measuring orifice 5.2 of the temperature-limited heat quantity controller 5.1.
The energy stored in the heating water is transferred to the domestic water in countercurrent. The heat quantity controller regulates the set target temperature of 55*C using the temperature sensor 5.3.

• t I

,•^•The automatically adjusted heat transfer in the plate heat exchanger is limited by the regulating throttles 6.1 (charging capacity) and 6.2 (tapping capacity). The band charging throttle 6.3 (storage tank), as well as the size of the storage tank 2, are determined by the domestic water requirement. The peak tapping quantity is the sum of the storage tank final discharge and the plate heat exchanger heating. When the storage tank is final discharged, the alternating thermostat 8 is flowed to by the incoming cold domestic water and switches from circulation to charging mode.

operation. After the tapping process has ended, the storage tank is charged via the non-return valve 7.1 until the changeover thermostat switches back to circulation operation when the set temperature is reached.

The check valve 7.3 prevents a short circuit via the circulation line when the charging pump 3 is switched on, and the check valve 7.2 prevents a short circuit via the storage tank when the circulation pump 4 is switched on.

In circulation mode, the service water temperature in the circulation circuit is regulated to 54 ⁰ C via the plate heat exchanger. To maintain the temperature stratification in the storage tank, the incoming cold service water is distributed horizontally on the storage tank base via the baffle plate on the changeover thermostat immersion sleeve (9) located in the inlet. The embodiment shown and described is only an example of how the invention can be implemented.

Achievable advantages: A domestic hot water system according to the invention

Preparation plant San-Ko / ZSK as central storage combination:

- with high performance

- with little space requirement

- with low production costs.

The installation can take place in any room of a house.

It is mainly used in district heating systems that require a high level of cooling of the heating water.

The cladding can be customized to any decor.

· ·

&igr; · < e

1 PLATE HEAT EXCHANGER

2 STORAGE

3 CHARGING PUMP

4 CIRCULATION PUMP

1 HEAT QUANTITY REGULATOR WITH

TEMPERATURE LIMITER 5.2 MEASURING BLENOE TO 51 TEMPERATURE SENSOR TO

6 CONTROL THROTTLE

7 CHECK VALVE

&bgr; CHANGING THERMOSTAT 9 IMMERSION SLEEVE WITH REGULATOR MAGNESIUM ANODE

Claims (1)

INSURANCE CLAIMS Expression : Central - storage - combination San - Ko / ZSK - for domestic hot water supply in the smallest of spaces Characteristic part Characterized by
that the hot water temperature of the plate heat exchanger corresponds to the system temperature. by routing the individual hot water streams separately and balancing them using the adjustment throttles. Switching of the pumps using the changeover thermostat installed at the lowest storage point.
Maintaining the very good stratification through the baffle plate mounted in the storage water inlet.