KR200373284Y1 - Air conditioning and Heating system of manhole using geothermal - Google Patents

Abstract

By using underground heat in winter and reverse heat in summer in summer, a manhole cooling and heating system using geothermal heat, which can reduce the operating cost of an air conditioning system, is disclosed. The geothermal heating and cooling system of the manhole according to the present invention has a multi-stage heat exchange pipe of a horizontal heating structure in the air-conditioning equipment room, the manhole bottom and the outer circumference of the manhole, and the inlet of the heat exchange pipe is connected to the inside of the manhole. A circulation device having a structure in which the heat medium absorbing heat is filled and circulated is placed inside the manhole, and a heat pump and heat medium for transferring heat of the heat medium absorbing geothermal heat into the manhole are provided at the inlet and outlet of the heat exchange pipe. It includes a circulation pump connected. Here, the manhole refers to a space in which various equipments (eg, communication equipment, transformers, signal controllers, cables, and other devices exposed to the ground) can be installed and manipulated in the underground structure. Abbreviated as manhole.

Description

Air conditioning and heating system of manhole using geothermal

The present invention relates to a cooling and heating system using geothermal heat, and more particularly, a heat exchange pipe surrounding the outside of a manhole buried in the ground, and the inside of the manhole dissipates heat or cold heat obtained from the heat exchange pipe. The present invention relates to a manhole cooling and heating system using geothermal heat which is provided with a heat pump and uses underground heat in winter and reverse heat in summer in summer, thereby reducing the operating cost of the air conditioning system.

In general, water and sewage pipes, various communication and power cable gas pipes, etc. are being buried underground for efficient utilization of ground water and urban aesthetics due to the increase in urban density such as industrial development and population increase. On such lines as water, sewage pipes, various communication and power cables, and gas pipes, work spaces for inspecting or cleaning them at regular distances, that is, manholes, are provided. Here, inside the manhole for communication or power, various equipment for supporting this may be installed. Since various equipments installed in the manhole are sensitive to temperature changes, they should be cool in summer and warm in winter. Therefore, in the equipment room where the equipment is installed, the air conditioner and the heater for air conditioning are installed together.

However, since the air conditioner and the warmer must discharge heat from inside or supply heat from the outside, a heat dissipation device or a heat supply device from the outside is required and these devices are provided on the ground around the manhole. Such a device resulted in a contradiction with the original purpose of laying various cables underground for aesthetics of the city. In addition, there was a problem in that additional energy is required to drive the air conditioner and the heater.

The present invention is devised to solve the above problems, the object of the present invention is to obtain infinite geothermal heat through the heat exchange pipe, heat or heat dissipation into the manhole by using heat obtained from the heat exchange pipe installed inside the manhole In addition to having a structure that does not require a device for discharging or supplying the internal heat to provide a cooling and heating system of the manhole using geothermal heat that does not have a problem that can hinder the urban aesthetics that may occur when exposed to the outside.

1 is a perspective view schematically showing a heating system of a manhole using geothermal heat according to the present invention,

2 is a view showing a state of use of the heating and cooling system of the manhole using geothermal heat according to the present invention,

3 is a view showing a mounting structure of the heat exchange pipe shown in FIG.

4 and 5 are a perspective view and a state diagram showing the cooling and heating system of the manhole using geothermal heat according to another embodiment.

<Explanation of symbols for the main parts of the drawings>

100: Manhole cooling and heating system using geothermal

110: structure pad 112: seating portion

120: air conditioning equipment room 122: manhole cover

130: heat exchange pipe 132a: one end

132b: end 140: support

142: coupling bolt 144: nut

150: heat pump 160: circulation pump

In order to achieve the above object, the present invention,

An air-conditioning and heating equipment room installed in the inner bottom of the manhole;

A heat exchange pipe having a spiral multistage structure horizontally at the bottom and the outer circumferential surface of the manhole, and having one end portion and one end portion connected to the inside of the air-conditioning equipment room and having a structure in which a heat medium absorbing geothermal heat is filled and circulated;

A heat pump which is placed inside the air-conditioning equipment room and has one end and an end of the heat exchange pipe connected to transfer heat of the heat medium absorbing geothermal heat into the manhole; And

It provides a geothermal heating and cooling system for a manhole using a circulation pump mounted to one end or the end of the heat exchange pipe for the circulation of the heat medium.

Hereinafter, with reference to the accompanying drawings, a cooling system for a manhole using geothermal heat according to an embodiment of the present invention will be described.

1 is a perspective view schematically showing a heating system of a manhole using geothermal heat according to the present invention, Figure 2 is a view showing a state of use of the heating and cooling system of a manhole using geothermal heat according to the present invention, Figure 3 is shown in Figure 1 4 and 5 are a perspective view and a state diagram schematically showing a cooling and heating system of a manhole using geothermal heat according to another embodiment.

As shown in FIGS. 1 and 2, the manhole cooling and heating system 100 using geothermal heat according to the present invention has a structure pad 110, an air conditioning equipment room 120, a heat exchange pipe 130, a heat pump 150, and circulation. With a pump 160.

The structure pad 110 is made of concrete and has a thick plate shape of rectangular or square shape. At this time, on the upper surface of the structure pad 110, a structure having an internal space in which equipment is to be installed, that is, a seating portion 112 is formed, such a structure pad 110 is disposed on the bottom surface of the manhole. The cooling and heating equipment room 120 is disposed above the structure pad 110 formed as described above.

The air conditioning and heating equipment room 120 has an empty housing shape so that the equipment can be installed where the equipment for supporting various communication cables or power cables is installed. The air conditioning and heating equipment room 120 is seated on the seating portion 112 formed on the structure pad 110. At this time, the manhole cover 122 communicating with the outside (ground) is formed in the upper portion of the air conditioning equipment room 120. The heat exchange pipe 130 is disposed on the outer circumferential surface of the cooling and heating equipment room 120 formed as described above.

The heat exchange pipe 130 is a hollow hollow tube inside is filled with a heat medium. The heat exchange pipe 130 has a multi-stage structure of at least two stages while winding in a horizontal spiral in a state spaced apart from the outer wall of the air conditioning and heating equipment room 120 at a predetermined interval. That is, the heat exchange pipe 130 starts in the interior of the air conditioning equipment room 120 and horizontally winds the lower portion of the outside of the air conditioning equipment room 120 in a spiral shape, and then winds the central portion of the air conditioning equipment room 120 in a horizontal spiral likewise. Finally, after winding the upper portion of the heating and cooling equipment room 120 in a spiral, the heat exchange pipe 130 is extended to the lower portion of the first heating and cooling equipment room 120 is connected to the inside again. In order to support the heat exchange pipe 130 having a multi-stage structure, a plurality of supports 140 fixed to the outer wall surface of the air conditioning and heating equipment room 120 protruding outward from the lower part of the spiral heat exchange pipe 130 are provided. Is placed. At this time, the support 140 should be arranged in a quantity sufficient to withstand the spiral heat exchange pipe 130, and it is natural that the support 140 also has the same multi-stage structure as the multi-stage structure of the heat exchange pipe 130. something to do. On the other hand, the heat exchange pipe 130 and the support 140 has a coupling structure as shown in FIG. That is, the heat exchange pipe 130 settled on the upper portion of the support 140 has a coupling bolt 142 having a "∩" shape extending downward through the support 140 and surrounding the heat exchange pipe 130. , Has a nut 144 screwed to the bottom of the coupling bolt 142.

On the other hand, the heat pump 150 and the circulation pump 160 is placed inside the air-conditioning equipment room 120.

The heat pump 150 is a device for transferring a low temperature heat source to a high temperature or a high temperature heat source to a low temperature by using heat of a refrigerant or condensation heat, and an end portion 132a and an end portion 132b of the heat exchange pipe 130 are provided. The heat medium in the heat exchange pipe 130 is circulated. Here, the heat pump 150 will be briefly described. The heat has a property of moving from a high place to a low place. The heat pump is named because it pulls heat from a low temperature to a high temperature on the contrary. Initially, it was developed for evaporating compressed refrigerant such as refrigerators, freezers, and air conditioners to take away heat from surroundings. However, it is now used to encompass a cooling device that transfers a low temperature heat source to a high temperature by using heat of a refrigerant or condensation heat, a heating device that transfers a high temperature heat source to a low temperature, and a combined cooling and heating device. The structure consists of a compressor, an evaporator, a condenser, and an expansion valve. The principle of operation is to repeat the cycle of evaporating the compressed refrigerant at high and high pressure from the compressor and then sending it to the condenser to radiate high temperature heat outward. In contrast to cooling, the system is configured so that the condenser acts as an evaporator and the evaporator acts as a condenser so that the condensed refrigerant is heat exchanged with hot outside air to cool the target point to be cooled.

In addition, the circulation pump 160 is disposed around the end portion 132b of the heat exchange pipe 130 to facilitate circulation of the heat medium.

However, when the size of the air conditioning equipment room 120 is small, the circulation structure (cycle, cycle) of the heat exchange pipe 130 may be shortened. When the circulation structure is shortened as described above, there is a problem that the heat medium moving along the heat exchange pipe 130 does not absorb sufficient geothermal heat. Therefore, when the air conditioning equipment room 120 is small, as shown in FIGS. 4 and 5, the arrangement of the heat exchange pipes 130 is disposed in one or more stages, and the heat exchange pipe is further extended in the downward direction of the air conditioning equipment room 120. 130 extends deeper underground and then rises again. At this time, when extending underground, the zigzag shape may absorb much geothermal heat without going deeper.

In the ground heating and cooling system of geothermal manhole according to the present invention, devices for cooling, heating, and hot water supply using geothermal energy, which are alternative energy, must obtain stable heat from underground soil, rock or sand. It is a system that can be effectively installed and used in places where it is difficult to install due to various factors such as limitations, preservation of underground storage, excessive construction cost due to excavation, and long construction period.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art will be able to variously modify and change the present invention without departing from the spirit and scope of the present invention described in the utility model registration claims. It will be appreciated.

Claims (5)

An air-conditioning and cooling equipment room 120 having an empty interior installed on an inner bottom surface of the manhole; The one end 132a and the end 132b are connected to the inside of the air-conditioning equipment room 120 while the heat medium absorbing the geothermal heat is filled and circulated while having a horizontal spiral multistage structure on the outer circumferential surface of the air-conditioning equipment room 120. A heat exchange pipe 130 having a structure; One end 132a of the heat exchange pipe 130 and the end 132b of the heat exchange pipe 130 are connected to the inside of the air conditioning equipment room 120 while being placed inside the air conditioning equipment room 120. Heat pump 150 for transmitting to; And And a circulation pump (160) mounted on one end (132a) or the end (132b) of the heat exchange pipe (130) for circulation of the heat medium. The method according to claim 1, wherein the plate-shaped structure pad 110 is disposed on the bottom surface of the manhole, the heating and cooling equipment room 120 is placed on the structure pad 110, the heating and cooling of the manhole using geothermal system. According to claim 1, wherein the lower portion of the heat exchange pipe 130 disposed outside the air conditioning equipment room 120 to support the heat exchange pipe 130 a plurality of on the outer peripheral surface of the air conditioning equipment room 120 Manhole cooling system using geothermal heat, characterized in that the support 140 is mounted. According to claim 3, The heat exchange pipe 130 on the support 140, the coupling bolt 142 having a "??" shape is wrapped while passing through the support 140, the coupling bolt ( The heating and cooling system of the manhole using geothermal heat, characterized in that the nut 144 is fastened to the lower end of the 142 to fix the support 140 and the heat exchange pipe 130. The system of claim 1, wherein the heat exchange pipe (130) further extends into the lower ground of the air-conditioning equipment room (120) to absorb more geothermal heat.