MX2010009714A

MX2010009714A - Water heater arrangement.

Info

Publication number: MX2010009714A
Application number: MX2010009714A
Authority: MX
Inventors: Jozsef Bereznal
Original assignee: B B I P Szellemi Tulajdonjog Hasznositoe Es Vagyonkezeloe Korlatolt Feleloessegue Tarsasag
Priority date: 2008-03-05
Filing date: 2009-03-04
Publication date: 2010-11-12
Also published as: CN101970948B; RU2496061C2; WO2009109794A1; HUP0800147A2; EP2255135A1; US20110058796A1; HU229686B1; RU2010139995A; CN101970948A

Abstract

A water heater arrangement comprising a gas-operated water heater device (1) that has an cold water inlet pipeline (2) and an hot water outlet pipeline (3), and which further comprises a storage type electric water heater (4) inserted serially into the hot water outlet pipeline (3), and which is equipped with a thermostat (5). In an embodiment it absorbs and utilizes the waste heat of the gas-operated water heater device (1).

Description

WATER HEATER SET This invention relates to a water heater assembly for serving hot water outlets of utility companies, which includes a gas operated water heater or a combined circulation heater and half water heater having a cold water inlet and a hot water outlet pipe.

In homes and places with low demand for hot water, gas water heaters are generally used. Among them we can find the types of circulator that are operated by the flow of water caused by the opening of a tap of hot water at a site of the water intake. The water heating included in the pipe section between the water heater and the water intake site, as well as the slow onset of the heat transfer to initially heat the flow causes that even for a relatively long time, only cold water or not hot enough to reach the water intake site. This disadvantage is annoying especially in the case of the intention to take a small amount of hot water, when there is a great waste of time and water and practically no amount is used. The devices in general, when start of the water flow start to work with the maximum power of the gas burner, which however can produce an overheating after the initial period mentioned, and this can also be annoying, for example, in the next opening that is repeated within a short time, where the user does not have overheated water.

In addition, boilers with gas-operated storage heaters - including an integrated buffer tank - are also used. The hot water is transferred to the place of the water intake from this damping reservoir. The tank is heated in a controlled manner, which results in a smoother gas burner energy consumption characteristic. If the size of the damping reservoir is small then this does not significantly increase the dimensions of the device, but the hot water will quickly deplete. If the damping reservoir is large, then depletion will occur later, but the gas energy used for heating may appear superfluous if hot water is not taken for a long time. This disadvantage can be reduced by increasing thermal insulation, which can lead to an increase in cost.

It is also possible to use a deposit of damping placed outside the device, so the dimensions of the device will not be increased, but to reach the controlled temperature a separate circulation pump must be used, which is also expensive.

These solutions have a common disadvantage, that in case of lack of gas supply, they do not provide hot water, or only with a large buffer tank are suitable for a temporary supply of more significant hot water.

Another frequent category of water heaters uses electric heating, and in the tank of the thermal insulated device, it stores a hot water reserve of controlled temperature. Its advantage is the possibility of simple and inexpensive realization of temperature regulation. Its disadvantage is, however, that they generally require more space than gas circulation devices and consume significant electrical power. Another disadvantage is that in case of prolonged power outages, there is no longer hot water supply.

The object of this invention is to find a solution which, even in the case of taking it frequently or only small amounts of hot water, eliminates the delay effect, and at the same time is of favorable energy consumption, requires little initial investment and is operable, even in the lack of considerable energy supply.

The invention is based on the recognition that the advantages of gas operated water heaters can be combined with the advantages of electric water heaters of small size, and with this set an optimum operation and size can be achieved. of the global device virtually unchanged.

Another plus of this set is the elimination of the effect that occurs while taking a very small amount of hot water, when due to the small amount, the gas water heater does not turn on automatically, and even in the heater tank storage only cold water flows, which after many small intakes only stores cold water. In the solution applied by us, however, the electric storage heater boiler constantly heats the water to the pre-set temperature, that is, during breaks between the short intervals. This provides both the heat balance and the minimization of the tank size.

The object of the invention is achieved by means of a water heater according to the introductory paragraph, in which an electric type water heater is inserted Storage, in series in the hot water outlet pipe, whose electric water heater is equipped with a thermostat.

In addition, the invention is presented by means of the drawings, wherein Figure 1 is a gas-operated water heating device with electric water heater according to the invention, connected from the outside, Figure 2 is a gas-operated water heating device with electric water heater according to the invention, connected in an integrated manner.

In Figure 1 there is shown a circulating water heater device operated with optional gas 1. The gas operated water heater device 1 has a cold water inlet pipe 2 and a hot water outlet pipe 3. In this latter , in the series assembly, an electric water heater 4 is inserted according to the invention, connected externally to the front part. The electric water heater 4 has an electrical connector 8 connected to a heating wire, as well as a thermostat 5 which detects the temperature of the stored damping water and consequently controls the heating wire. According to Figure 1, the electric water heater 4 is inserted into the hot water outlet pipe 3 outside of the circulating water heater device operated with gas 1, but in its vicinity. This assembly can be advantageous from the point of view of the effective use of space. In such a case, it may be useful to cover the reservoir of the electric water heater 4 with thermal insulating material, since due to its external location it does not come into contact with a significant amount of additional available heat. The electric water heater 4 can be placed further away from the circulating water heater device operated with gas 1 in the hot water pipe to the place of the water intake.

In the case of another mode, shown in Figure 2, the electric water heater is integrated into the circulating water heater device operated with gas 1. Its advantage is that it is not necessary to direct or disassemble the hot water pipeline. . Its other advantage may be that in the case of a proper design and placement, the damping storage tank of the electric water heater 4 may utilize the otherwise unusable waste heat that develops in the circulating water heater device operated with gas. For this purpose we can use a heat transfer element that penetrates into the combustion space 7 of the circulating water heater device operated with gas 1, and by transferring This heat preheats the amount of water included in the electric water heater 4, thus reducing the amount of electrical energy necessary for heating to a pre-set minimum temperature. This heating is carried out in a controlled manner, that is to say, the thermostat 5 keeps the water included in the electric water heater 4, that is to say in the damping tank.

It is sufficient to choose a low storage capacity for the electric water heater 4 which functions as a buffer reservoir, since it basically serves to compensate for the temperature delay and the excess of the simple water heater operated with gas or water heater device combined circulation 1. For this it is generally sufficient to apply a buffer tank of less than 20 liters, for example, 5-15 liters. However, with such buffer volumes we reach the place of the water intake at a completely stable temperature which can be adjusted by the thermostat 5 of the electric water heater 4. The electric water heater 4 heats the system also in the subsequent period to the water intake, therefore a small-sized deposit is sufficient. We can also choose this relatively low temperature, this will not prevent the possibly much hotter water supplied by the operated water heater device with gas 1 with a certain time delay, also reach the place of the water intake. When the tap in the place of the water intake is closed, the water remaining in the reservoir of the electric water heater 4 will be of a temperature higher than that which is preset by the thermostat 5. Then, until cooling down again of the water included in the buffer reservoir, the electric heating operation is not required. For this reason we can achieve a safe operation for the environment, with a favorable energy consumption.

By means of the assembly according to the invention, it can be provided that in case of lack of gas or heavy electric current, there is the possibility of obtaining hot water from utility companies. At the same time, the disadvantageous delay of the heating of water operated with gas with a more favorable economy is also eliminated, because the water included in the damping tank of the electric heating balances the slow reaction in the temperature or overheating, either in case of simple water heating devices or combined circulation water heaters. The buffer reservoir of electric heating with a relatively small size will increase the dimensions only to a small extent and consumes little electrical energy. In case of integration with the device operated with gas, the buffer tank does not require significant thermal insulation.

LIST OF REFERENCES 1 gas operated water heater device 2 cold water inlet pipe 3 hot water outlet pipe 4 electric water heater 5 thermostat 6 heat transfer element 7 combustion space 8 electrical connector

Claims

CLAIMS:

1. Water heater assembly with a gas operated water heating device (1) which is connected to a cold water inlet pipe (2) and a hot water outlet pipe (3), characterized in that it also comprises an electric water heater Storage type water (4) inserted in series in the hot water outlet pipe (3), and which is equipped with a thermostat (5).

2. Assembly according to claim 1, characterized in that the electric water heater (4) is integrated in the gas-operated water heating device (1).

3. Assembly according to claim 1, characterized in that the electric water heater (4) is outside connected to the gas-operated water heating device (1).

4. Assembly according to claim 1, characterized in that the storage tank of the electric water heater (4) has a storage volume of less than 20 liters.

5. Assembly according to claim 2, characterized in that the electric water heater (4) is integrated inside the gas-operated water heating device (1) in order to absorb and use its 52-684 residual heat.

6. Assembly according to claim 5, characterized in that the electric water heater (4) is integrated in the gas-operated water heating device (1) with a heat transfer element (6) that penetrates its combustion space.

7. Assembly according to any of claims 1-6, characterized in that the deposit of the electric water heater (4) is covered by thermal insulation material. 52-684