KR101350941B1 - Variable flow rate district heating pre-insulated pipe against seasonally varying heat loads - Google Patents

Abstract

The present invention relates to a double heat insulation pipe system for variable flow district heating according to seasonal heat load fluctuations, more specifically, heating, hot water supply pipes are installed as integrated pipes, and only the integrated pipes and recovery pipes are installed to provide construction cost and equipment construction cost. In addition, the cost of facility management and maintenance is relatively reduced, and the heating water that passes the hot water heat exchanger and heats the hot water is not returned to the main integrated heat exchanger, but is circulated to the hot water distributor or floor coil installed in each household or floor. The use efficiency of the heating water supplied by heating water is increased, and the occurrence of heat loss lost in the process of circulating the heating water to the main integrated heat exchanger is minimized, and the main integrated heat exchanger is installed to supply the heating water at all times, Generation of water regardless of season by installing hot water heat exchanger for each household or floor Heating, cooling, and hot water can be freely used for each star or floor, providing convenience to the user.Plumbing that was previously installed by installing two supply pipes by supplying cold water and hot water before use water through one hot water supply pipe Compared with the system, the cost is reduced, and the construction time of one hot water supply pipe can shorten the working time and greatly improve the workability. The main integrated supply pipe and the main integrated recovery pipe are double pipes provided with auxiliary pipes therein. By being formed, the heating water is simultaneously transferred to the outer tube and the inner tube during the winter season, and the heating water is transferred to the inner tube only during the summer season, and the outer tube is formed as an air layer, thereby reducing heat loss and thereby increasing the insulation effect.

Description

Variable flow rate district heating pre-insulated pipe against seasonally varying heat loads}

The present invention relates to a double heat insulation pipe system for variable flow district heating according to seasonal heat load fluctuations, more specifically, heating, hot water supply pipes are installed as integrated pipes, and only the integrated pipes and recovery pipes are installed to provide construction cost and equipment construction cost. In addition, the cost of facility management and maintenance is relatively reduced, and the heating water that passes the hot water heat exchanger and heats the hot water is not returned to the main integrated heat exchanger, but is circulated to the hot water distributor or floor coil installed in each household or floor. The use efficiency of the heating water supplied by heating water is increased, and the occurrence of heat loss lost in the process of circulating the heating water to the main integrated heat exchanger is minimized, and the main integrated heat exchanger is installed to supply the heating water at all times, Generation of water regardless of season by installing hot water heat exchanger for each household or floor Heating, cooling, and hot water can be freely used for each star or floor, providing convenience to the user.Plumbing that was previously installed by installing two supply pipes by supplying cold water and hot water before use water through one hot water supply pipe Compared with the system, the cost is reduced, and the construction time of one hot water supply pipe can shorten the working time and greatly improve the workability. The main integrated supply pipe and the main integrated recovery pipe are double pipes provided with auxiliary pipes therein. As a result, the heating water is simultaneously transferred to the outer tube and the inner tube during the winter season, and the heating water is transferred to the inner tube only during the summer season. The present invention relates to a double heat insulation tube system for district heating of a flow rate.

In recent years, apartment complexes and medium-sized buildings have been equipped with common heating facilities for the entire complex, rather than individual heating and individual hot water supply systems, and supply heating hot water to each household or floor through a common pipe network. The system is constructed by a central supply system that supplies water to each generation or floor through a pipe network after heating the water to the appropriate temperature through the heat exchange between the hot water and the water supply.

This central supply method uses a relatively efficient heat source device and manages it as a manager with specialized skills, so that the central supply method can actively respond to the decrease in efficiency with the age of the device compared to the individual method, and the simultaneous use rate is applied. It is easy to cope with emergencies such as fire by reducing total device capacity and gathering fire power in one place.

As shown in FIG. 1, the centralized heating system includes a circulation pump 2 for circulating high temperature water in a heat production facility 1 for producing high temperature water. The hot water pipe 5 is connected to the circulation pump 2 through the heat exchanger 3 for heating and the heat exchanger 4 for supplying and recovering hot water to or from the building A .

The heating heat exchanger 3 is provided with a heating supply pipe 3-1 and a heating return pipe 3-2 connected to the respective generations and rooms and the hot water supply heat exchanger 4 is provided with hot water A supply pipe 4-1 and a hot water supply return pipe 4-2 are installed. That is, it is a 4-pipe system.

However, in the conventional 4-pipe type centralized heating system, there are problems in that construction cost, facility construction cost, facility management and maintenance cost are increased in order to install each piping, and a large number of piping installation causes heat loss There is a problem that this occurs.

In addition, the conventional four-pipe type of central heating method has a problem that heating is not available because only hot water is supplied when heating hot water is not supplied in summer.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

The heating and hot water supply pipes are installed as integrated pipes, and only the integrated pipes and recovery pipes are installed, thereby reducing construction costs, facility construction costs, facility management and maintenance costs, and heating water for heating hot water through a hot water heat exchanger. Rather than return to the main integrated heat exchanger, the efficiency of use of the heated water is increased by circulating the hot water distributor installed on each household or floor by floor or directly to the floor coil. The purpose of the present invention is to provide a double heat insulation pipe system for variable flow district heating according to seasonal heat load fluctuations, which minimizes the loss of heat loss during the process.

In addition, by installing the main integrated heat exchanger to supply heating water at all times and by installing the hot water supply heat exchanger for each household or each floor, heating, cooling and hot water supply can be freely used for each household or floor regardless of the season. The purpose of the present invention is to provide a double heat insulation tube system for variable flow district heating according to seasonal heat load variation that can be provided.

In addition, by supplying the cold water and hot water to the water supply through one hot water supply pipe, the cost is reduced compared to the piping system that was previously installed by installing two supply pipes, and the work time is shortened by constructing one hot water supply pipe. Of course, it is another object to provide a double flow pipe system for variable flow district heating according to seasonal heat load fluctuations that can greatly improve workability.

In addition, the main integrated supply pipe and the main integrated recovery pipe is formed of a double pipe with an auxiliary pipe therein, so that in winter, the heating water is transferred simultaneously to the exterior and the inner pipe, and in the summer, the heating water is transferred only to the inner pipe, and the exterior is to the air layer. Another purpose is to provide a double heat insulation pipe system for variable flow district heating according to seasonal heat load fluctuations, which are formed to reduce heat loss and thereby increase adiabatic effect.

In order to achieve the above object, the present invention is a main integrated heat exchanger for producing a high-temperature heating water supplied to each generation or each floor through heat exchange by receiving a heat source produced in a heat production facility;

A main integrated supply pipe connected to the main integrated heat exchanger and formed of a double pipe to supply high temperature heating water heat exchanged in the main integrated heat exchanger;

A main integrated recovery pipe connected to the main integrated heat exchanger and formed of a double pipe to recover used heating water;

It is installed for each household or floor, and is branched to the main integrated supply pipe and the main integrated recovery pipe, respectively, and heat-exchanges the hot water supplied by the heating water supplied from the main integrated heat exchanger and the time water supplied through the water pipe. A hot water heat exchanger for supplying and discharging the heating water heat-exchanged with the time water to the main integrated recovery pipe;

A hot water supply pipe connected to the hot water supply heat exchanger and supplying the hot water heat exchanger;

A mixing unit installed in the hot water supply pipe and the water supply pipe to mix the supplied hot water and the time water at a predetermined temperature;

A control unit connected to the mixing unit to control the mixing unit;

The hot water supply pipe for supplying the water mixed at a suitable temperature through the mixing unit in one line before use; relates to a double heat insulating pipe system for variable flow rate district heating according to the seasonal heat load variation, characterized in that it comprises a.

As described above, the dual heat insulation pipe system for variable flow rate district heating according to the seasonal heat load fluctuation of the present invention is installed as an integrated pipe for heating and hot water supply pipes, and only the integrated pipe and the recovery pipe are installed for construction cost and facility construction cost. In addition, the cost of facility management and maintenance is relatively reduced, and the heating water that passes the hot water heat exchanger and heats the hot water is not returned to the main integrated heat exchanger, but is circulated to the hot water distributor or floor coil installed in each household or floor. In this case, the use efficiency of the heating water supplied by using the heating water increases, and the generation of heat loss lost during the circulation of the heating water into the main integrated heat exchanger is minimized.

In addition, by installing the main integrated heat exchanger to supply heating water at all times and by installing the hot water supply heat exchanger for each household or each floor, heating, cooling and hot water supply can be freely used for each household or floor regardless of the season. There is an effect that can be provided.

In addition, by supplying the cold water and hot water to the water supply through one hot water supply pipe, the cost is reduced compared to the piping system that was previously installed by installing two supply pipes, and the work time is shortened by constructing one hot water supply pipe. Of course, workability can be greatly improved.

In addition, the main integrated supply pipe and the main integrated recovery pipe is formed of a double pipe with an auxiliary pipe therein, so that in winter, the heating water is transferred simultaneously to the exterior and the inner pipe, and in the summer, the heating water is transferred only to the inner pipe, and the exterior is to the air layer. It is formed to reduce heat loss, thereby increasing the thermal insulation effect.

1 is a system diagram showing a conventional centralized heating method,
Figure 2 is a structural diagram showing a double heat pipe system for variable flow rate district heating according to seasonal heat load variation according to an embodiment of the present invention,
Figure 3 is a detailed structural diagram showing a double heat pipe system for variable flow rate district heating according to the seasonal heat load change according to an embodiment of the present invention,
Figure 4 is a schematic diagram showing a double heat pipe system for variable flow rate district heating according to seasonal heat load variation according to an embodiment of the present invention,
5 is a perspective view showing the main integrated supply pipe and the main integrated recovery pipe of the present invention,
6 is a front view showing the main integrated supply pipe and the main integrated recovery pipe of the present invention.

The present invention has the following features in order to achieve the above object.

The present invention is a main integrated heat exchanger for producing high-temperature heating water supplied to each generation or each floor through heat exchange by receiving a heat source produced in a heat production facility;

A main integrated supply pipe connected to the main integrated heat exchanger and formed of a double pipe to supply high temperature heating water heat exchanged in the main integrated heat exchanger;

A main integrated recovery pipe connected to the main integrated heat exchanger and formed of a double pipe to recover used heating water;

It is installed for each household or floor, and is branched to the main integrated supply pipe and the main integrated recovery pipe, respectively, and heat-exchanges the hot water supplied by the heating water supplied from the main integrated heat exchanger and the time water supplied through the water pipe. A hot water heat exchanger for supplying and discharging the heating water heat-exchanged with the time water to the main integrated recovery pipe;

A hot water supply pipe connected to the hot water supply heat exchanger and supplying the hot water heat exchanger;

A mixing unit installed in the hot water supply pipe and the water supply pipe to mix the supplied hot water and the time water at a predetermined temperature;

A control unit connected to the mixing unit to control the mixing unit;

It is characterized in that it comprises a; hot water supply pipe for supplying the water mixed at an appropriate temperature through the mixing unit in one line before use.

The present invention having such characteristics can be more clearly described by the preferred embodiments thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing in detail several embodiments of the present invention with reference to the accompanying drawings, it is to be understood that the present invention is not limited to the details of construction and the arrangement of components shown in the following detailed description or illustrated in the drawings will be. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front," "back," "up," "down," "top," "bottom, Expressions and predicates used herein for terms such as "left," " right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation. Also, terms such as " first "and" second "are used herein for the purpose of the description and the appended claims, and are not intended to indicate or imply their relative importance or purpose.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

2 is a structural diagram showing a double heat insulation tube system for variable flow rate district heating according to seasonal heat load variation according to an embodiment of the present invention, Figure 3 is a variable flow rate region according to seasonal heat load variation according to an embodiment of the present invention Detailed structure diagram showing a double heat insulation tube system for heating, Figure 4 is a schematic diagram showing a double heat insulation tube system for variable flow rate district heating according to the seasonal heat load change according to an embodiment of the present invention, Figure 5 is the main integrated supply pipe of the present invention And a perspective view of the main integrated recovery pipe, Figure 6 is a front view showing the main integrated supply pipe and the main integrated recovery pipe of the present invention.

2 to 6, the integrated piping system formed of one hot water supply pipe using the district heating of the present invention is the main integrated heat exchanger 10, the main integrated supply pipe 20, and the main integrated recovery pipe (30), heating water supply pipe (40), heating water recovery pipe (50), branch supply pipe (70), branch recovery pipe (80), hot water supply pipe (90), hot water heat exchanger (60) ), Cold and hot water piping system.

As shown in Figures 2 and 4, the main integrated heat exchanger 10 is installed in the machine room (not shown) of the apartment house and building of the heat supply target, and is connected to the hot water pipe (supply pipe, recovery pipe) to heat Heated water is produced by heat exchange by passing the hot water supplied from the production facility (H) and supplied.

That is, the main integrated heat exchanger 10 is provided with a heat source of any one of hot water, medium temperature water or steam produced in a heat production facility (H) such as a central boiler of the medium-large sized common, power plant waste heat to heat the water through heat exchange. To produce.

And, the main integrated supply pipe 20 supplies the heating water heat exchanged in the main integrated heat exchanger 10, the main integrated supply pipe 20 is installed as a single insulation pipe in the pipe pit in the case of apartment houses and buildings .

In addition, the main integrated recovery pipe 30 is connected to the main integrated supply pipe 20 to recover the heating water. Here, the main integrated recovery pipe 30 is installed as a single insulation pipe in the pipe pit in the same way as the main integrated supply pipe 20 in the case of apartment houses and buildings, the main integrated recovery pipe 30 and the main integrated supply pipe ( 20) the ends are interconnected or separated, it is preferable that the flow rate valve (not shown), the air bleed valve (not shown) and the like is installed at the end portion. At this time, one or more circulation pumps 31 are installed in the main integrated recovery pipe 30.

Here, the main integrated supply pipe 20 and the main integrated recovery pipe 30 is a double pipe, as shown in Figure 5 and 6, the auxiliary pipes 20-1, 30-1 are further provided therein, the winter (appearance) Means the external pipe of the main integrated supply pipe 20 and the main integrated recovery pipe 30) and the auxiliary water (also referred to as the inner pipe provided in the exterior) is simultaneously transported, and in the summer the auxiliary pipe (20-1, The heating water is supplied only to 30-1) and the exterior acts as a heat insulating material to the air layer, and the formed air layer is naturally balanced by the auxiliary pipes 20-1 and 30-1, and has a lower thermal conductivity than any existing heat insulating material. .

And, the support 20 (20-1, 30-1) is further provided so that the support 20 (20-2, 30-2) spaced apart from each other in the interior of the main integrated supply pipe 20 and the main integrated recovery pipe (30). Installed in the outer periphery of the auxiliary pipe (20-1, 30-1) and the outer periphery of the main integrated supply pipe 20 and the main integrated recovery pipe 30 is inserted into the support (20-2, 30-2) Insertion groove (not shown) is formed so as to. At this time, the combination of the support (20-2, 30-2) is a variety of changes depending on the appearance of the main integrated supply pipe 20 and the main integrated recovery pipe 30 and the design of the auxiliary pipe (20-1, 30-1) Combined with the examples.

Thus, the main integrated supply pipe 20 and the main integrated recovery pipe 30 is formed by a double pipe, it is possible to flexibly supply the flow rate in the summer and winter, which is made of heat loss reduction.

On the other hand, the heating water supply pipe 40 is installed for each household if you want to provide a hot water production structure for each household, each floor is installed for each floor to provide a hot water production structure for each floor, the main integrated supply pipe (20) Branch connected to supply heating water. Here, the heating water supply pipe 40 is a constant flow valve (not shown) for maintaining a constant flow rate of the heating water, and each piping installed in each room of each generation of the apartment house or the room of each floor of the building (Not shown) is connected to the supply side of the heating water distributor 150, or directly connected to the bottom coil (not shown).

In addition, the heating water recovery pipe 50 is installed for each household to provide a hot water production structure for each household, similar to the heating water supply pipe 40, and for each floor to provide a hot water production structure for each floor. It is installed every time, the branch is connected to the main integrated recovery pipe 30 to recover the heating water used through the heating water supply pipe (40). Here, the heating water recovery pipe 50 is also connected to the recovery side of the heating water distributor 150, or directly connected to the bottom coil.

2 to 4, the hot water supply heat exchanger 60 is a hot water supply through the heat exchange of the water supplied from the main integrated heat exchanger 10 and the water supplied through the water pipe 100 from the outside. Produces and delivers to cold and hot water piping system.

Here, the hot water supply heat exchanger 60 is installed for each household or each floor, as shown in Figure 2, the branch supply pipe 70 and connected to the heating water supply pipe 40 and the heating water recovery pipe 50, respectively, A branch recovery pipe 80 is further formed, and heating water is supplied / recovered to the hot water supply heat exchanger 60 by the branch supply pipe 70 and the branch recovery pipe 80.

In addition, the hot water is produced by the hot water heat exchanger 60 is supplied to the cold and hot water piping system through the hot water supply pipe 90, the hot water heat exchanger 60 is extended from the water supply pump 101 to the cold and hot water piping system. It is connected to the water pipe 100 branched from the water pipe 100 is connected to receive the hot water supply. The hot water heat exchanger 60 may be any one of a plate heat exchanger, a spiral heat exchanger, or a shell & tube heat exchanger, and uses a plate heat exchanger having a small double volume and excellent thermal efficiency. It is preferable to configure the hot water supply heat exchanger. Since the heat exchangers as described above are well known techniques, detailed description of the structure of the heat exchanger will be omitted.

As shown in FIG. 3, the branch supply pipe 70 is branched from the heating water supply pipe 40 and connected to the hot water supply heat exchanger 60 in each floor of the apartment building or each floor of the building. The heating water supplied through the water supply pipe 40 is configured to provide a flow path supplied to the hot water supply heat exchanger 60.

The branch recovery pipe 80 is installed to be connected to the hot water supply heat exchanger 60 by being branched from the heating water recovery pipe 50 in each floor or each floor of the building of the apartment house, and the hot water supply heat exchanger 60 is provided. ) Transfers the heating water heat-exchanged with the municipal water to the heating water recovery pipe (50).

The hot water supply pipe 90 is connected to the hot water heat exchanger 60 to transfer the hot water that is heat-exchanged with the heating water to the cold / hot water piping system.

2 to 4, the cold and hot water piping system is installed in the hot water supply pipe 90 and the water pipe 100, the mixing unit 110 for mixing the supplied hot water and the time water at a set temperature; A control unit 120 connected to the mixing unit 110 to control the mixing unit 110; It is composed of a hot water supply pipe 130 for supplying the water mixed at an appropriate temperature through the mixing unit 110 in one line to the use faucet 140.

Here, the mixing unit 110 includes a mixture (not shown) to which the water pipe 100 and the hot water supply pipe 90 are connected, respectively; A control valve (not shown) inserted into the mixture to control the inflow of cold water and hot water introduced through the cold water pipe and the hot water pipe connected to the mixture; A motor (not shown) for flowing the control valve by an electric force is included.

And, one side of the mixture may be further provided with a temperature sensor for sensing the temperature of the water mixed in the mixture.

In addition, the input unit (not shown) for transmitting the temperature of the water desired by the user to the control unit 120 may be configured to transmit the input value input by the user to the control unit 120 in a wired or wireless manner.

Meanwhile, the hot water supply pipe 130 is constructed such that cold water and hot water are supplied to the faucet 140 through one supply pipe, thereby reducing the cost of about 50% compared to the conventional piping system installed by installing two supply pipes. Not only can it be obtained, by constructing one supply pipe, the work time can be shortened and workability can be greatly improved.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings, and the terminology or words used in the specification and claims are used to explain the invention in its best way. Based on the principle that the concept of can be properly defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

10: main integrated heat exchanger 20: main integrated supply pipe
30: main integrated recovery pipe 40: heating water supply pipe
50: heating water recovery pipe 60: hot water supply heat exchanger
70: branch supply pipe 80: branch recovery pipe
90: hot water supply pipe 100: water pipe
110: mixing unit 120: control unit
130: hot water supply pipe 140: use faucets
150: heating water distributor

Claims (8)

A main integrated heat exchanger (10) which receives the heat source produced in the heat production facility (H) and produces high-temperature heating water supplied to each household or each floor through heat exchange;
A main integrated supply pipe 20 connected to the main integrated heat exchanger 10 and formed of a double pipe to supply high-temperature heating water heat exchanged by the main integrated heat exchanger 10;
A main integrated recovery pipe (30) connected to the main integrated heat exchanger (10) and formed of a double pipe to recover used heating water;
It is installed for each household or each floor, and are branched to the main integrated supply pipe 20 and the main integrated recovery pipe 30, respectively, and the heating water and the municipal water pipe (100) supplied from the main integrated heat exchanger (10) A hot water heat exchanger 60 for supplying hot water by heat-exchanging the time water supplied through the water supply, and discharging the heating water heat-exchanged with the time water to the main integrated recovery pipe 30;
A hot water supply pipe 90 connected to the hot water heat exchanger 60 to supply hot water that is heat-exchanged;
A mixing unit 110 installed at the hot water supply pipe 90 and the water pipe 100 to mix the hot water supply and the hot water at a set temperature;
A control unit 120 connected to the mixing unit 110 to control the mixing unit;
And a hot water supply pipe 130 for supplying the water mixed at an appropriate temperature through the mixing unit 110 in one line to the faucet 140.
The main integrated supply pipe 20 and the main integrated recovery pipe 30 is a double pipe, the auxiliary pipe (20-1, 30-1) is further provided therein in the winter season and the auxiliary pipe (20-1, 30-1) The heating water is simultaneously transferred to), the heating water is supplied only to the auxiliary pipes (20-1, 30-1) in the summer, the exterior is a double layer insulation for the variable flow district heating according to the seasonal heat load fluctuation, characterized in that the role of the insulation to the air layer Tubular system.
The method of claim 1,
The main integrated supply pipe 20 is branched by each generation or each floor, the heating water supply pipe 40 for supplying high-temperature heating water is formed bifurcated for variable flow district heating according to seasonal heat load variation, characterized in that the branching Tubular system.
The method of claim 1,
The main integrated recovery pipe (30) for variable heating district heating according to seasonal heat load fluctuations, characterized in that the branched water heating pipe 50 for recovering the heating water used for branching by each generation or each floor Double insulation tube system.
3. The method of claim 2,
The heating water supply pipe 40 is a seasonal heat load variation, characterized in that the branch supply pipe 70 is branched to be interconnected with the hot water supply heat exchanger 60 installed for each household or each floor to supply high temperature heating water. Double heat pipe system for variable flow district heating according to
4. The method of claim 3,
A branch recovery pipe (80) is formed in the heating water recovery pipe (50) so that the branch recovery pipe (80) is interconnected with the hot water heat exchanger (60) installed for each household or each floor to recover the heating water heat exchanged in the hot water heat exchanger (60). Double heat pipe system for variable flow rate district heating according to seasonal heat load fluctuation.
4. The method according to claim 2 or 3,
The heating water supply pipe 40 and the heating water recovery pipe 50 are directly connected to the heating water distributor 150 or the bottom coil, the heating water is used, characterized in that the double heat insulating pipe for variable flow rate district heating according to seasonal heat load variation system.
The method of claim 1,
The auxiliary pipes 20-1 and 30-1 are further provided with support members 20-2 and 30-2 so as to be spaced apart from each other in the interior of the main integrated supply pipe 20 and the main integrated recovery pipe 30. Double heat pipe system for variable flow district heating according to seasonal heat load fluctuation. delete

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