CN204611930U - A kind of low-temperature radiator heating structure - Google Patents

Abstract

The utility model discloses a heating structure of a low-temperature radiator, which comprises a main water supply pipe, a main return water pipe and a plurality of radiator units with low water resistance and a large surface. One end of the upper end of each radiator unit is connected to the main water supply pipe , and one end of the diagonal is connected to the main return water pipe. The low-temperature hot water of the current floor heating standard is used to achieve the purpose of radiator heating, thereby solving the contradiction between improving indoor comfort and energy saving, and the wide range of sources of low-temperature hot water creates conditions for further utilization of energy-saving technologies.

Description

A low-temperature radiator heating structure

technical field

The utility model relates to a low-temperature radiator heating structure, which belongs to the technical field of low-temperature heating.

Background technique

    At present, the temperature design of indoor heating water supply is generally high, the radiator volume or heat dissipation surface area is small, and the surface temperature is relatively high. Generally, the supply and return water is 95/70°C, which is the "standard working condition" of the radiator (average water temperature -18°C room temperature) 64.5°C, even with consumer-type gas water heaters and plastic pipes, it still reaches 54.5°C at 85/60°C. However, if the temperature of high-temperature heating water exceeds 60°C, it is easy to scale in the pipeline or accelerate the corrosion of pipeline equipment. If the temperature exceeds 70°C, the organic dust will burn on the surface of the radiator and emit dust particles or gases that are harmful to health. This way of heating the indoor air will cause the indoor air to be more violently disturbed, and the local relative humidity will be drastically reduced, resulting in a sense of dryness and heat, the degree of air ionization will increase, and the human body will be more likely to be charged with static electricity. Observation by infrared photography shows that the temperature field in the high-temperature radiation chamber is not uniform enough. On the other hand, high-temperature water heating is not conducive to energy saving. First of all, it is difficult to improve the energy utilization efficiency of water heaters. It is basically impossible to use condensation technology, heat pump technology, solar hot water, etc., the heat loss of external network pipes is relatively large, and the indoor comfortable temperature requirements are relatively relatively low. On the high side.

In order to achieve low-temperature heating, the floor heating commonly used now is not only expensive, but also has hidden pipes, and the energy-saving effect in practical applications is not very ideal. Because of the thermal insulation at the bottom of the ground water pipes and the influence of the floor covering above, the savings are about 30 % energy is offset again, and even wastes more, and because of the slow characteristics of changing room temperature, behavioral energy saving cannot be achieved.

Utility model content

The technical problem to be solved by the utility model is to provide a low-temperature radiator heating structure, which uses the low-temperature hot water of the current floor heating standard to achieve the purpose of radiator heating, thereby solving the contradiction between improving indoor comfort and energy saving, and low-temperature hot water is widely used The source has created conditions for further utilization of energy-saving technologies.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A low-temperature radiator heating structure, including a main water supply pipe, a main return water pipe and a plurality of radiator units with low water resistance and large surface, one end of the upper end of each radiator unit is connected to the main water supply pipe, and its diagonal Connect one end to the return water main.

The aforementioned low-temperature radiator heating structure is characterized in that: the main water supply pipe and the main return water pipe are parallel double-pipe and same-course circulation structures.

The aforementioned low-temperature radiator heating structure is characterized in that: an automatic thermostatic valve is also arranged between the radiator unit and the main water supply pipe.

The aforementioned low-temperature radiator heating structure is characterized in that: the other end of the upper end of the radiator unit is provided with an automatic exhaust valve.

The aforementioned low-temperature radiator heating structure is characterized in that: a manual control valve is provided at the joint between the lower end of the radiator unit and the return water main pipe.

The aforementioned low-temperature radiator heating structure is characterized in that: a system exhaust valve is arranged at the highest point of the main water supply pipe and the main return water pipe.

The aforementioned low-temperature radiator heating structure is characterized in that: the water supply temperature of the main water supply pipe is less than or equal to 60°C, and the return water temperature of the main return water pipe is less than or equal to 50°C.

The aforementioned low-temperature radiator heating structure is characterized in that: the radiator unit is a single column radiator or a cavity flat panel radiator.

The beneficial effects of the utility model are:

1. The use of low-temperature water supply can maximize the combustion heat exchange efficiency in ordinary water heaters, and can give full play to the advantages of condensing water heaters to increase the gas efficiency to 109% to save energy and reduce emissions. It can also make heat pump water supply equipment Increase the COP value by about 1.0, or double the utilization rate of solar hot water, and achieve the effect of directly saving primary energy by 10%-30% or even higher;

2. The indoor comfort is improved by reducing the temperature of the radiator, and the indoor temperature field is more uniform, reaching the state between the floor radiant heating and the traditional radiator, so that the room temperature at the same comfortable temperature in the room is reduced by 1°C, which can save about 6 hours during use. % of energy;

3. The position of the low-temperature radiator is flexible, which can avoid the traditional window position and the characteristics of heating air, which leads to the disadvantage of easy to lose more energy through the window;

4. The total circulation resistance of such a system is very small, so a small circulation pump power or a small flow water pressure can meet the requirements, which also solves the problem of high energy consumption of circulation pumps in low-temperature radiation systems such as floor heating;

5. The material selection of the low-temperature radiator is flexible, and cheap steel products can also operate for a long time in a low-temperature environment;

6. Compared with the floor heating system, the loss of heat energy through the floor is much smaller, and the room temperature rises several times faster. Combining the automatic thermostatic valve and manual opening valve on each radiator, it is convenient to set the use status or room of each group Temperature, or flexible switch, provides convenient operability for behavioral energy saving, and makes the overall energy saving of the system 30%-50%, even exceeding the well-operated floor heating system;

7. The components used in the system are all mature products with few types and low technical cost requirements. There are no electronic components, and they all work on mechanical and physical principles. The cost is low, safe and reliable, and the service life is long. The cost is only lower than that of the same grade. The traditional heating increases by 10%-20%, which is lower than that of floor heating. The implementation technology is very simple, easy to promote, improves comfort, and has remarkable energy-saving effects. The temperature difference is small, and it can be widely used in a large number of newly-built commercial houses that meet the national energy-saving standards. If the residents have a good awareness of energy-saving behaviors, some people open the room, no one closes it, and adjust the room temperature to 16-18°C, living per square meter per year The energy consumption of space heating can be fully controlled at the standard of energy-saving room.

Description of drawings

Fig. 1 is a schematic diagram of a low-temperature radiator heating structure of the present invention.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings of the description.

As shown in Figure 1, a low-temperature radiator heating structure includes a water supply main pipe 1, a return water main pipe 2 and a plurality of radiator units 3 with low water resistance and large surface, and the upper end of each radiator unit 3 One end is connected to the water supply main pipe 1, and the opposite end is connected to the return water main pipe 2. By enlarging the heat dissipation surface area of the radiator by more than 50% or even increasing it by 100%, a radiator unit 3 with low water resistance and large surface is used, such as a single standpipe The water-capacity radiator greatly increases the contribution of radiator radiation to heat dissipation, and achieves a good heating effect by using low-temperature water supply. In this embodiment, the water supply temperature of the main water supply pipe 1 is less than or equal to 60°C, or even as low as 45°C, and the return water temperature of the return water main pipe 2 is less than or equal to 50°C, or even as low as 35°C. Compared with the traditional 85°C water supply temperature, for every 1°C drop in water supply temperature, the radiator design specification should be increased by at least 2%.

In addition, the water supply main pipe 1 and the return water main pipe 2 are parallel double-pipe circulation structures, that is, supply first and then return. The return water pipe of the next group of heating radiators, and so on, pull out a return water pipe from the radiator at the end, and return to the return water main pipe 2 of the main pipe, so that the water flow of each group of radiators in the system is basically the same Yes, the system is very balanced. Among them, the return water main pipe 2 is connected to the hot water source, and forms a closed cycle with the hot water source such as the heating side of the gas wall-hung boiler, which must have a small circulating water pump and an expansion tank to maintain the pressure of the pipeline to form a complete closed system. Fill the system piping including the radiator with water.

According to the thermal principle, there is also an automatic thermostatic valve 4 between the radiator unit 3 and the main water supply pipe 1. The automatic thermostatic valve 4 is controlled to open and close according to the room temperature, so that hot water enters the radiator slowly, releases heat, cools down and naturally sinks to the lower part. Walk.

The connection between the lower end of the radiator unit 3 and the return water main pipe 2 is provided with a manual control valve 5, through which the manual control valve 5 quickly controls the switch, so that the stroke and water flow of hot water in each column of the radiator are also Basically the same, and there is almost no resistance, so a small circulation pump power or a small flow water pressure can meet the requirements, which also solves the problem of high energy consumption of circulation pumps in low-temperature radiation systems such as floor heating.

The other end of the upper end of the radiator unit 3 is provided with an automatic exhaust valve 7, and the highest point of the main water supply pipe (1) and return water main pipe 2 is provided with a system exhaust valve 6 to ensure that the pipeline is always Run with full water.

The radiator unit 3 is a single-column radiator or a cavity flat-plate radiator. In order to save room area, a radiator in the form of a high column can be selected to reduce the occupied area.

In summary, the utility model provides a low-temperature radiator heating structure, which uses the low-temperature hot water of the current floor heating standard to achieve the purpose of radiator heating, thereby solving the contradiction between improving indoor comfort and energy saving, and low-temperature hot water is widely used The source has created conditions for further utilization of energy-saving technologies.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims (8)

1. a low-temperature radiator heating structure, it is characterized in that: the radiator unit (3) comprising water main (1), backwater main (2) and the large surface of multiple low water drag, one end of the upper end of described each radiator unit (3) connects water main (1), and the one end at its diagonal angle connects backwater main (2).

2. a kind of low-temperature radiator heating structure according to claim 1, is characterized in that: described water main (1) and backwater main (2) are parallel two-tube same journey loop structure.

3. a kind of low-temperature radiator heating structure according to claim 1 and 2, is characterized in that: be also provided with automatic constant temperature valve (4) between described radiator unit (3) and water main (1).

4. a kind of low-temperature radiator heating structure according to claim 3, is characterized in that: the other end of the upper end of described radiator unit (3) is provided with automatic exhaust steam valve (7).

5. a kind of low-temperature radiator heating structure according to claim 4, is characterized in that: the bottom of described radiator unit (3) and the junction of backwater main (2) are provided with hand control valve (5).

6. a kind of low-temperature radiator heating structure according to claim 5, is characterized in that: the peak place of described water main (1) and backwater main (2) is provided with system exhaust valve (6).

7. a kind of low-temperature radiator heating structure according to claim 6, is characterized in that: the supply water temperature of described water main (1) is for being less than or equal to 60 DEG C, and the return water temperature of backwater main (2) is for being less than or equal to 50 DEG C.

8. a kind of low-temperature radiator heating structure according to claim 7, is characterized in that: described radiator unit (3) is single column-type radiator or cavity flat-plate radiator.