JP2001241719A - Heat exchanging ventilator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the productivity and to reduce the cost of a large floor type heat exchanging ventilator. SOLUTION: A heat exchanging ventilator comprising a plurality of piled up same structured heat exchange units 5, wherein the heat exchange unit 5 comprising a floor type blower unit 3, wherein a variable rotational speed air supply blower 1 and a variable rotational speed air exhaust blower 2 are separately built into a unit of a hexahedron air blowing casing 6 and an air supply inlet and an air supply outlet hole 9 are formed on the side of the air supply blower 1 and an exhaust air inlet hole and an exhaust air outlet hole 10 are formed on the side of the exhaust blower 1, is built in with a hexahedron heat exchange casing 15 built in with a heat exchanger 4 continuously heat exchanges between the air supply flow and air exhaust flow.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large, floor-standing type heat exchange ventilator for performing heat exchange ventilation by supply and exhaust through a heat exchanger.

[0002]

2. Description of the Related Art For ventilation of a large space such as a building or a company building, a large-sized floor-mounted heat exchange ventilator as disclosed in, for example, JP-A-6-101883 is often used. This type of heat exchange ventilator is basically
As shown in FIG. 8, an exhaust blower for forming an exhaust flow from an indoor to an outdoor (mostly outdoor) in an exhaust passage, and an air supply for forming an air supply flow from an outdoor (mostly outdoor) to the indoor in an air supply passage. A blower 30 and a heat exchanger 31 which constitutes a part of a path of an exhaust passage and an air supply passage and performs continuous heat exchange between the air supply and exhaust flows.
It is composed of In the heat exchanger 31, which is the main body of heat exchange, a plurality of primary passages through which the exhaust air flow as the primary air flow passes and a plurality of secondary passages through which the supply air flow as the secondary air flow crosses in an independent state inside. Hexahedral laminated structures are often used.

The capacity of the air blower 30 and the exhaust blower is set according to the amount of air to be processed, and the heat exchanger 31 also has a multi-stage hierarchical structure. In heat exchange ventilation, ventilation can be performed by air supply and exhaust that suppresses fluctuations in state quantities such as indoor temperature and humidity by performing heat exchange between the air supply and exhaust flow. In some cases, it is more comfortable to take the exhaust gas as it is, and in such a case, the exhaust gas can be made to bypass the heat exchanger 31 by the bypass passage. In some cases, a filter unit 33 incorporating a medium-high performance filter 32 is connected in a hierarchical structure so that the cleanliness of air taken into a room can be kept high.

[0004]

In the large-sized floor-installed type heat exchange ventilator as described above, an air supply fan 30 and an exhaust air blower each corresponding to a required processing capacity are selected, and a heat exchanger 31 is provided. Are also configured in accordance with the number of layers and are manufactured uniformly for each product. Therefore, it is necessary to prepare parts individually for each heat exchange ventilator of items having different processing capacities, which has resulted in low productivity and high cost. Further, even when it is necessary to change the air volume by a small amount at the time of construction, it can be dealt with only by replacing the pulley 34 or the belt 35 of the air blower 30 or the exhaust blower,
It is also less responsive to changes in air volume. further,
Since it is large and heavy, it requires robust packing materials for handling the cargo, so the packaging cost is high.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is an object of the present invention to improve the productivity and cost of a large-sized floor-mounted heat exchange ventilator. To obtain a heat exchange ventilator with good responsiveness to changes in the processing air volume,
The aim is to improve the installation of the heat exchange ventilator and reduce the amount of packaging materials.

[0006]

In order to achieve the above object, an invention according to claim 1 comprises an air supply blower having a variable rotation speed and an exhaust air blower having a variable rotation speed provided in a single hexahedral blower casing. A blower unit that is installed on the floor and has an air inlet and an air outlet on the air blower side of the air blow casing and an exhaust air inlet and an air outlet on the exhaust blower side. In addition, an integer number of heat exchange units of the same shape and the same configuration incorporating a heat exchanger that continuously exchanges heat between the supply air flow and the exhaust air flow are stacked in a hexahedral heat exchange casing that can be stacked on the blower unit. In the heat exchange unit, an air supply passage for passing an air supply flow in which an outlet side communicates with an air supply intake port of a blower unit, and an exhaust passage for passing an exhaust air flow in which the outlet side communicates with an exhaust air inlet, Connect the inlet of the air supply passage to the outside of the room Kill way is opened, to employ a means for opening and so can contact the inlet of the exhaust passage into the room.

In order to achieve the above object, a second aspect of the present invention is to separate and incorporate a variable-speed air supply fan and a variable-speed exhaust fan into a single hexahedral air-blowing casing. A hexahedron is installed on the blower unit installed on the floor, which has an air inlet and an air outlet on the air blower side of the air blow casing and also has an exhaust air inlet and an air outlet on the exhaust blower side. A heat exchange unit incorporating a heat exchanger that continuously exchanges heat between the supply air flow and the exhaust air flow is built in the heat exchange casing, and the heat exchange unit is connected to the air supply inlet of the blower unit. An air supply passage through which the supply air flow communicates with the outlet port, and an exhaust passage through which the exhaust air flow communicates with the exhaust suction port, which is connected to the exhaust suction port, are opened so that the inflow port of the air supply passage can be communicated outside the room. The entrance of the passage can be connected to the room Is the mouth, to adopt the means constituting the heat exchange unit of the same heat exchange unit having the same shape same configuration on the heat exchange unit so as stacking integer number.

According to a third aspect of the present invention, there is provided the heat exchange unit according to any one of the first and second aspects, wherein the inlet of the air supply passage and the inlet of the exhaust passage are provided. A plurality of means each of which is openable so as to be closed in different directions is employed.

In order to achieve the above object, a fourth aspect of the present invention is directed to the means according to any one of the first to third aspects, wherein a plurality of supply air outlets and exhaust air outlets of the blower unit are provided in different directions. A means for opening in a closeable manner is adopted.

In order to achieve the above object, a fifth aspect of the present invention provides an air supply blower and an exhaust blower according to any one of the first to fourth aspects, wherein the air supply blower and the exhaust blower are provided with a turbo fan and a variable speed motor. And a means provided substantially at the center of a blower casing having no enlargement factor to make the rotation surface of each turbofan substantially horizontal.

In order to achieve the above object, the invention according to claim 6 is directed to the means according to any one of claims 1 to 5, wherein dust is formed on an inflow side of an airflow into a heat exchanger of a heat exchange unit. Means having a holding structure capable of detachably holding the air cleaning means together with the pre-filter to be removed is adopted.

According to a seventh aspect of the present invention, there is provided a transporting apparatus according to any one of the first to sixth aspects, wherein a work tool such as a fork of a cargo handling device can be inserted into the bottom of the blower unit. Means for integrally configuring the structure for use.

[0013]

1 to 17 show a heat exchange ventilator according to the present embodiment. This heat exchange ventilator is a large-sized floor-installed type that is provided for ventilation of a large space such as a building or a company building, and has a built-in air blower 1 and an exhaust blower 2. A layered structure is adopted in which a heat exchange unit 5 in which a laminated heat exchanger 4 is incorporated is stacked on the blower unit 3 on the installation side. In the blower unit 3, the inside of a single hexahedral blower casing 6 is equally divided into left and right air chambers, and the air blower 1 is provided for one air chamber and the exhaust blower 2 is provided for the other air chamber. Each is incorporated and configured. As shown in FIG. 1, the bottom of the blower casing 6 is formed of a rigid high-strength steel plate or the like into a pallet shape used for cargo handling work. And two rows of channel-like transport structures 8 that are continuous from the rear surface to the rear surface.

An air supply outlet 9 is provided on the side, back and front facing one air chamber of the blower unit 3, and an exhaust outlet 10 is provided on the side, back and front facing the other air chamber. I have. These supply air outlet 9 and exhaust air outlet 10 leave one or two duct pipes easy to install under installation conditions,
Others are closed by the closing plate 22. An air inlet is provided on the rear upper surface facing one air chamber of the blower unit 3, and an exhaust air inlet is provided on the rear upper surface facing the other air chamber. The air supply blower 1 and the exhaust blower 2
Each of the turbofans 11 and the variable-speed motor 12 are assembled in a box-shaped casing 13 having no expansion ratio, and are mounted at substantially the center of each air chamber so that the rotation surface of each turbofan 11 is substantially horizontal. (See FIGS. 1 and 2). Each motor 1 of the air blower 1 and the exhaust blower 2
2 is controlled at a variable speed by an inverter drive circuit 14 attached to the blower unit 3, an airflow from the air supply inlet to the air supply outlet 9 is formed by the operation of the air blower 1, and the air blower 2 By the operation, an airflow from the exhaust inlet to the exhaust outlet 10 is formed.

The heat exchange units 5 stacked on the blower unit 3 are provided in a hexahedral heat exchange casing 15 with a plurality of linear primary passages for passing a primary air flow (exhaust air flow) and a secondary air flow (supply air flow). A plurality of linear secondary passages passing through the interior cross each other in an independent state, the entrance and exit ends of the primary passage open on two opposite surfaces, and the entrance and exit ends of the secondary passage open on the other two opposite surfaces. In addition, the heat exchanger 4 having a laminated structure composed of a hexahedron with both closed edges is detachably incorporated (see FIG. 13). The heat exchanger 4 is incorporated such that its small ends face both sides of the heat exchange casing 15 and the primary passage and the secondary passage are substantially parallel to a diagonal line of the heat exchange casing 15. An air supply chamber 16 is defined on one side of the heat exchange casing 15 facing one of the small openings of the heat exchanger 4, and an exhaust chamber 17 is defined on the other side facing the other small opening (FIG. 1). 2, 10).

On the back side of the heat exchange unit 5, an air supply passage 18 through which an air outlet communicates with an air inlet of the blower unit 3 through an air outlet, and an exhaust air flow through which an outlet communicates with an exhaust air inlet. The exhaust passage 19 is formed independently for all the paths. The primary passage of the heat exchanger 4 forms a part of the exhaust passage 19, and the secondary passage forms a part of the air supply passage 18. Heat exchange casing 15 facing air supply chamber 16
Air supply passage 18
The outdoor suction port 20 serving as an inlet of the exhaust chamber 17 is
An indoor suction port 21 serving as an inflow port of the exhaust passage 19 is opened in the upper part, the side face, the back face, and the front face on one side of the heat exchange casing 15 facing the heat exchanger casing 15. These outdoor suction ports 2
0 and the indoor suction port 21 leave one or two duct pipes which are easy to install under installation conditions,
It is closed at 2 (see FIG. 14). A bypass passage bypassing the primary passage of the heat exchanger 4 is provided in the exhaust chamber 17 so as to be opened and closed by an opening and closing damper.

As shown in FIG. 13, a pre-filter 23 for removing dust is held by a holding structure 24 on the inlet side of the supply air flow and the inlet side of the exhaust air flow of the heat exchanger 4 in a detachable manner. The holding structure 24 of each pre-filter 23 is provided with an inner and outer two-stage holding frame portion 25, the outer holding frame portion 25 is provided with the pre-filter 23, and the inner holding frame portion 25 is provided with a medium-performance filter or a deodorizing filter for purifying air. Means 26 are retained as needed. These pre-filters 23
The air purifying unit 26 and the air purifying unit 26 can perform maintenance by attaching / detaching from an inspection port provided on the front of the heat exchange casing 15. In addition, the blowing unit 3
And the heat exchange unit 5 may be configured separately or may be configured integrally.

When it is desired to increase the processing air volume of the heat exchange ventilator, the heat exchange unit 5 having the same shape and the same configuration as the heat exchange unit 5 is stacked on the heat exchange unit 5 as shown in FIGS. What is necessary is just to set it up mutually and to comprise a multi-stage | rank hierarchical structure, and to set up the rotation speed of each motor 12 of the air blower 1 and the exhaust air blower 2 by the inverter drive circuit 14. The outdoor suction port 20 and the indoor suction port 21 on the upper surface of the lower heat exchange unit 5 are closed on the lower surface of the upper heat exchange unit 5, and the air supply passages 18 and the exhaust passages 19 on the back side of each heat exchange unit 5 are connected. Communicate with the air supply inlet and the exhaust air inlet of the blower unit 3 respectively.

As shown in FIG. 9, a supply air outlet 9 of the blower unit 3 is connected to a room through a duct 27 as shown in FIG. Is connected to the outside by the duct 27. The exhaust outlet 10 may be connected to an air conditioner 28 installed indoors as shown in FIG. 16 by switching the air passage switching means or the like. As shown in FIG. 10, the outdoor suction port 20 of each heat exchange unit 5 is provided with a convenient one that matches the condition of the installation place.
And the indoor suction port 21 is connected to the room through the duct 27, which is convenient for the installation location. Note that the indoor suction port 21 may be connected to the outlet side of an air conditioner 28 installed indoors as shown in FIG. As described above, since the supply air outlet 9, the exhaust air outlet 10, the outdoor suction port 20, and the indoor suction port 21 are provided in multiple directions, the duct piping has a high degree of freedom.
As shown in 1, 12, 16, and 17, duct piping can be performed according to the conditions of the installation location, and the height of the connection portion with the duct can be selected to some extent.

The air supply blower 1 and the exhaust blower 2 are housed in a box-shaped casing 13 having no enlargement ratio, and are mounted at substantially the center of each air chamber so that the rotation surface of each turbo fan 11 is substantially horizontal. The air supply outlet 9 in any direction,
The blowing conditions are the same for the exhaust air outlet 10, and the degree of freedom of the duct piping can be increased without impairing the air blowing performance. When the air supply blower 1 and the exhaust air blower 2 are operated, the heat exchanger 4 of each heat exchange unit 5 performs ventilation by simultaneous supply and exhaust with continuous heat exchange between the supply air flow and the exhaust air flow. . When the bypass passage of the heat exchange unit 5 is opened, the exhaust flow bypasses the heat exchanger 4 and ordinary ventilation without heat exchange is performed. In order to purify the outside air supplied to the room, a medium-performance filter may be mounted inside the pre-filter 23 on the secondary passage side of the heat exchanger 4 (see FIG. 13). Further, if a deodorizing filter is installed inside the pre-filter 23 on the primary passage side, it is possible to remove exhaust components to the outside of the store at a pet shop or the like, and it is possible to eliminate odor problems and the like in the neighborhood.

When manufacturing heat exchange ventilators having different processing air volumes, it is sufficient to adopt a hierarchical structure of the number of heat exchange units 5 corresponding to the processing air volume, and the productivity is high.
In addition, the blower unit 3 and the heat exchange unit 5 can be used in common, and there is no need to prepare separate parts, so that the cost is significantly reduced. This heat exchange ventilator has a large mass and requires robust packaging materials for packaging. Also,
Usually, a pallet is used for handling during transportation and installation. However, since a transport structure 8 that can insert a working tool such as a fork of a cargo handling device is integrally formed at the bottom of the blowing unit 3. The transport structure 8 can be directly moved by the cargo handling device without using a pallet. Therefore, packaging materials can be simplified and pallets are not required, which can contribute to effective use of resources and reduce costs.

[0022]

According to the first aspect of the present invention, it is possible to improve the productivity and reduce the cost of a large-sized, floor-mounted heat exchange ventilator.

According to the second aspect of the present invention, it is possible to improve the productivity and reduce the cost of the large-sized floor-installed heat exchange ventilator.

According to the third aspect of the present invention, the degree of freedom of the duct pipe is increased, and the installability is improved, in addition to the effect according to the first or second aspect.

According to the invention of claim 4, in addition to the effect according to any one of claims 1 to 3, the degree of freedom of the duct pipe is increased, and the installability is improved.

According to the fifth aspect of the present invention, in addition to the effect according to any one of the first to fourth aspects, the supply air outlet and the exhaust air outlet of the blower unit can be arranged in multiple directions without disturbing the blowing performance. Can be established.

According to the sixth aspect of the present invention, the air purifying function can be achieved by the simple operation of mounting the air purifying means together with the effect according to any one of the first to fifth aspects. become.

According to the seventh aspect of the present invention, in addition to the effect according to any one of the first to sixth aspects, the transportation and the movement at the time of installation are facilitated, and the packaging materials and pallets can be saved.

[Brief description of the drawings]

FIG. 1 is a front view showing a heat exchange ventilation device according to an embodiment.

FIG. 2 is a plan view showing the heat exchange ventilator according to the embodiment.

FIG. 3 is a right side view showing the heat exchange ventilation device according to the embodiment.

FIG. 4 is a left side view showing the heat exchange ventilator according to the embodiment.

FIG. 5 is a front view showing a heat exchange unit of the heat exchange ventilator according to the embodiment.

FIG. 6 is a plan view showing a heat exchange unit of the heat exchange ventilator according to the embodiment.

FIG. 7 is a right side view showing a heat exchange unit of the heat exchange ventilator according to the embodiment.

FIG. 8 is a left side view showing the heat exchange unit of the heat exchange ventilator according to the embodiment.

FIG. 9 is a plan view showing a duct connection mode of a blower unit of the heat exchange ventilator according to the embodiment.

FIG. 10 is a plan view showing a duct connection mode of the heat exchange unit of the heat exchange ventilator according to the embodiment.

FIG. 11 is a front view showing an example of a duct connection form of the heat exchange ventilator according to the embodiment.

FIG. 12 is a front view showing an example of a duct connection form of the heat exchange ventilator according to the embodiment.

FIG. 13 is an enlarged configuration diagram showing a heat exchanger part of the heat exchange ventilator of the embodiment.

FIG. 14 is a front view and a side view showing a hierarchical structure of the heat exchange ventilation device of the embodiment.

FIG. 15 is a front view and a side view showing a hierarchical structure of the heat exchange ventilation device of the embodiment.

FIG. 16 is a front view showing an example of a duct connection form of the heat exchange ventilation apparatus according to the embodiment.

FIG. 17 is a front view showing an example of a duct connection form of the heat exchange ventilator according to the embodiment.

FIG. 18 is a side view showing a conventional heat exchange ventilation device.

[Explanation of symbols]

1 air supply blower, 2 exhaust blower, 3 blower unit, 4 heat exchanger, 5 heat exchange unit, 6
Blower casing, 8 transport structure, 9 air supply outlet, 10 exhaust outlet, 11 turbo fan, 1
2 motor, 14 inverter drive circuit, 15
Heat exchange casing, 18 air supply passage, 19 exhaust passage, 20 outdoor suction port, 21 indoor suction port, 23
Pre-filter, 24 holding structure, 26 air cleaning means.

Claims (7)

[Claims] A variable-speed air supply fan and a variable-speed exhaust fan are separately installed in a single hexahedral air-blowing casing. A hexahedral heat exchange casing that can be stacked on the blower unit that is configured on the floor that has an air intake port and an air supply outlet and that also has an exhaust air inlet and an exhaust air outlet on the exhaust blower side. The heat exchange unit of the same shape and the same configuration incorporating a heat exchanger that continuously performs heat exchange between the supply air flow and the exhaust air flow is formed by stacking an integral number of heat exchange units. An air supply passage through which the air outlet communicates with the air inlet and an exhaust air passage through which the exhaust air communicates with the exhaust air inlet are formed, and the inlet of the air supply passage is connected to the outside of the room. Open and exhaust A heat exchange ventilator with an opening at the inlet of the passage so that it can communicate with the room. 2. A variable-speed air supply blower and a variable-speed exhaust blower are installed separately in a single hexahedral blower casing. An air inlet and an air supply outlet are provided, and an air supply unit and an exhaust air flow are provided in a hexahedral heat exchange casing on a blower unit installed on the floor, which also has an exhaust air inlet and an exhaust outlet on the exhaust blower side. A heat exchange unit that incorporates a heat exchanger that continuously performs heat exchange between the air supply units is stacked, and the heat exchange unit has an air supply flow in which an outlet side communicates with the air supply suction port of the blower unit. And an exhaust passage through which an exhaust flow is connected to the exhaust suction port on the outflow side.The inlet of the air supply passage is opened so as to be able to communicate with the outside of the room. Open it so that you can communicate indoors, A heat exchange ventilator configured so that an integral number of heat exchange units having the same shape and the same configuration as the heat exchange unit can be stacked on the heat exchange unit. 3. The heat exchange ventilator according to claim 1, wherein a plurality of inlets of an air supply passage and a plurality of inlets of an exhaust passage of the heat exchange unit are provided in different directions. A heat exchange ventilator that can be closed to open. 4. The heat exchange ventilator according to claim 1, wherein a plurality of supply air outlets and a plurality of exhaust air outlets of the blower unit can be closed in different directions. Open heat exchange ventilator. 5. The heat exchange ventilator according to claim 1, wherein the air supply blower and the exhaust air blower are each constituted by a turbo fan and a variable speed motor. , A heat exchange ventilator that is provided approximately at the center of a blower casing with no enlargement ratio, and the rotating surfaces of those turbo fans are substantially horizontal. 6. The heat exchange ventilator according to any one of claims 1 to 5, further comprising a pre-filter for removing dust and a pre-filter that removes dust on an inflow side of the air flow to the heat exchanger of the heat exchange unit. A heat exchange ventilator having a holding structure capable of detachably holding both cleaning means. 7. The heat exchange ventilator according to claim 1, wherein a transporting structure in which a working tool such as a fork of a cargo handling device can be inserted into a bottom portion of the blower unit. Heat exchange ventilator.