CN112050261A - Intelligent gas waste heat utilization energy-saving device - Google Patents

Abstract

The invention relates to an intelligent gas waste heat utilization energy-saving device, which comprises: the intelligent heat exchanger system comprises a heat storage water tank, wherein the heat storage water tank is provided with a temperature pressure gauge, a pressure safety valve, an automatic water replenishing valve and a water inlet and outlet. Automatic control module (temperature sensor), circulating pump (low power high pressure resistant). The waste heat utilization energy-saving device can realize the recycling of waste heat dissipation of the gas stove, tap water is subjected to heat exchange and is stored in the heat storage water tank through the special heat exchanger, the utilization rate of the gas heat is improved, and meanwhile, hot water can be directly supplied to food cleaning, dish and dish decontamination, food thawing and even indoor heating, so that the electric energy required by electric heating water is saved. The device has simple structure, can be assembled on any cooking bench, and has good effect and low cost. Therefore, the method has good application prospect in catering environments such as home kitchens, restaurants and the like.

Description

A smart gas waste heat utilization energy-saving device

technical field

The patent of the present invention belongs to the field of energy saving and high-efficiency utilization, and relates to the waste heat utilization technology of gas stoves, and an intelligent device for automatic control, which is a supporting device for domestic and commercial gas stoves.

Background technique

Gas stoves refer to kitchen appliances that are heated by direct fire with gas fuels such as liquefied petroleum gas (liquid), artificial gas, and natural gas. They are widely used in people's daily life and are closely related to people's lives. Exacerbated by the adverse effects of the greenhouse effect, various countries are paying more and more attention to energy conservation and greenhouse gas emissions. According to my country's national standard (GB16410-2007), the thermal efficiency of desktop gas cookers and built-in gas cookers should be higher than 55% and 50%, respectively. It can be seen that a large proportion of the heat of the gas stove is still unused during the use process. While causing huge energy waste, the heat will also increase the temperature of the kitchen, worsen the working environment of the people in the kitchen, and reduce the temperature of the kitchen. The service life of the cooker. Therefore, reasonable recycling of this part of the heat for thermal storage and use at any time will inevitably bring considerable environmental and economic benefits, and will also improve people's comfort during kitchen operation.

In normal use, families, restaurants, hotels and canteens need a lot of hot water for washing, washing food, washing dishes, cleaning up oil, and thawing food. In most areas of my country, especially the areas north of the Yangtze River , The winter is relatively cold, and electric heating water equipment has become an indispensable kitchen appliance for people. This leads to additional waste of electrical energy, additional equipment expenses, and hidden dangers to water and electricity safety.

The existing heat exchangers are all cooktops, which are not friendly to the users of the existing cooktops, and the heat exchange efficiency is not high. hot water function.

SUMMARY OF THE INVENTION

Aiming at the defects in the prior art, the patent of the present invention provides an intelligent energy-saving device for utilizing waste heat of gas, which is a device that can effectively absorb waste heat of gas and store hot water.

The technical solution of the patent of the present invention is to provide a gas waste heat utilization energy-saving device that can be installed on existing domestic and commercial gas stoves, including: a heat exchanger that can be installed in the stove bracket, an external hot water storage tank, Circulating pump, automatic control module.

The hot water storage tank includes a temperature pressure gauge, a pressure safety valve, an automatic water replenishing valve, and a water inlet and outlet.

Compared with the prior art, the present invention has the following beneficial effects: the cost of the sheathing device is low, the thermal efficiency can be increased by 10%, the residual heat exchange heat can be continuously used after being stored, and the water stored in the hot water storage tank can be used as a backup when the water is stopped.

In the present invention, through the heat exchanger installed in the stove support, when the cold water enters from the cold water inlet pipe, the waste heat that is dissipated into the air is drawn through the heat exchanger pipe through the periphery of the outer flame of the gas stove, and then enters the storage tank. The hot water tank conducts heat exchange, effectively storing the waste heat of the gas and using it at any time for kitchen and bathroom washing and other work, effectively saving the electrical resources required for heating cold water. At the same time, the direct discharge of waste heat is avoided, resulting in a large amount of heat waste.

By setting the heat exchange device, the hot water heated by the waste heat can be stored in the hot water storage tank, and when the hot water operation is required, it can be discharged through the outlet of the hot water pipe, hot water faucet and other devices.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the patent of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic diagram of the arrangement of the heat exchange device installed in the gas stove support provided by the gas waste heat utilization energy-saving device according to an embodiment of the present invention. Figure 1. 1. Stove shell; 2. Feet; 3. Switch; 4. Pot holder; 5. Pot; 6. Air supply pipe; 7. Outer flame cover; 8. Inner flame cover; 9. Heat exchanger; 10 , pot handle; 11, water inlet; 12, water outlet; 13, temperature sensor.

FIG. 2 is a schematic structural diagram of a hot water storage tank of a gas waste heat utilization energy-saving device provided by an embodiment of the patent of the present invention. Figure 2.1, hot water storage tank shell; 2, insulation layer; 3, exhaust valve; 4, support; 5, temperature and pressure gauge; 6, circulating water outlet; 7, circulating water inlet; 8, pressure automatic water supply port 9 , the water outlet.

Fig. 3 is a plan view of a gas preheating utilization energy saving system device. In Figure 3: 1. Stove; 2. Stove switch; 3. Heat exchanger; 4. Insulation circulation pipe; 5. Circulation pump; 6. Hot water storage tank (specific structure is shown in the design drawing); 7. Automatic controller; 8. The water supply port of the hot water storage tank; 9. The water outlet of the hot water storage tank; 10. The stove eye.

Detailed ways

The direct discharge of gas waste heat will not only cause the loss of life of the cooker, but also affect the indoor temperature and deteriorate the operating environment. An example of the implementation of the present invention provides an energy-saving device for utilizing gas waste heat. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Embodiment 1: Please refer to Figures 1-2. This embodiment provides an intelligent gas waste heat utilization device with a simple structure, including a shell 1, a heat exchanger 9 installed on the original stove, a sensor 13, a cold water inlet pipe 11, Hot water outlet pipe 12. In Figure 2, the hot water storage tank includes a thermal insulation shell, a circulating pump (controlled by a temperature sensor), a water inlet and outlet, and a water outlet.

In this embodiment, combined with the overall device layout diagram in FIG. 3 , the circulating pump 5 is automatically controlled to pass the cold water through the heated heat exchanger 3 , and the heated hot water is stored in the hot water storage tank through the circulation line 4 . The hot water storage tank has good thermal insulation, which can keep the hot water warm for a long time, so as to continuously use the waste heat of gas to exchange heat and hot water. It not only improves the utilization efficiency of gas, but also indirectly reduces the electricity consumption of electric heating water. It also solves the problem that the indoor temperature and humidity are affected by the residual heat of the gas, which affects the living comfort of the user.

The above is only the preferred embodiment of the patent of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principle of the patent of the present invention, several improvements and replacements can be made. These improvements and replacement should also be considered as the protection scope of this patent.

Claims (7)

1. An intelligent gas waste heat utilization energy-saving device, characterized in that it comprises a heat exchanger, a hot water storage tank, and an automatic control sensor, and the water tank is provided with a temperature pressure gauge, a pressure safety valve, an automatic water replenishing valve, and a water inlet and outlet. 2. This set of devices can be easily retrofitted and installed in the original household and commercial gas stoves, and the parts are all hidden. 3. The intelligent gas waste heat utilization energy-saving device according to claim 1, characterized in that: the heat exchanger is a composite metal tube with good oxidation resistance and high thermal conductivity. Gradually increase to make the heat exchanger bowl-shaped. 4. The intelligent gas waste heat utilization energy-saving device according to claim 1, characterized in that: temperature and pressure sensors are installed in the hot water storage tank, and the circulating pump and the temperature sensor are connected to the central control system and received by the central control system. its control. 5. The smart gas waste heat utilization energy-saving device according to claim 1, wherein the hot water storage tank is a double-layer stainless steel thermal insulation water tank, and the whole adopts polyurethane foam thermal insulation molding. 6. The intelligent gas waste heat utilization energy-saving device according to claim 1, wherein the controller adopts a temperature sensor and is placed near the gas port. 7 . The intelligent gas waste heat utilization energy-saving device according to claim 1 , wherein the circulating pump is a low power consumption (10 watts/hour), high temperature and high pressure circulating pump. 8 .

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