Air Conditioning Equipment

Abstract

To provide an air conditioning system for performing spot air conditioning with a use side unit and a heat source side unit integrally installed on a frame, while allowing for implementing efficient pipe connection and installation on the frame.SOLUTION: The air conditioning system includes: a use side unit 10 having a use side heat exchanger 12 and a use side fan 13 in a housing 11; and a heat source side unit 20 having a heat source side heat exchanger 22, a heat source side fan 23, and a compressor in a housing 21. The use side unit 10 and the heat source side unit 20 are installed on one frame 40. The use side unit 10 and the heat source side unit 20 are pipe-connected. A pipe takeout port 17 of the housing 11 of the use side unit 10 and a pipe takeout port 27 of the housing 21 of the heat source side unit 20 are arranged adjacent to one side on the frame 40. Thereby, the air conditioning system 1 is obtained which has a shorter refrigerant pipe 28 connecting the use side unit 10 and the heat source side unit 20, and the air conditioning system shows excellent productivity and usability.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an air conditioner that has a utilization unit and a heat source unit and performs air conditioning operations such as cooling, and in particular to an air conditioner for spot conditioning in which the utilization unit and the heat source unit are integrated. [Background technology]

[0002] Patent Document 1 discloses an air conditioning system that includes a user-side unit having a user-side heat exchanger and a user-side fan, and a heat-source-side unit having a heat-source-side heat exchanger, a heat-source-side fan, a compressor, etc., and that performs air conditioning operations such as cooling by connecting the user-side unit and the heat-source-side unit through piping.

[0003] In addition, air conditioning systems that are used to cool or heat large spaces where it is difficult to install a normal air conditioning system, such as factories, workshops, warehouses, gymnasiums, etc., are known that have a heat source unit and a user unit integrated together and perform spot air conditioning.

[0004] For example, Patent Document 2 discloses an air conditioner in which a heat source unit and a user side unit are arranged on a single stand. The heat source unit and the user side unit are arranged back to back with their respective air outlets facing outward and their air inlets facing inward, and an air intake space is provided between the user side unit and the heat source side unit. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2013-200103 A [Patent Document 2] JP 2011-94879 A Summary of the Invention [Problem to be solved by the invention]

[0006] In an air conditioning system that has a heat source unit and a user unit integrated together, it is desirable to make the heat source unit and the user unit compatible by matching the specifications of the user unit to those of the heat source unit, which is often installed outdoors. This improves the productivity of the user unit, weather resistance and waterproofing, etc. are improved.

[0007] However, in this type of air conditioner, if the housing of the user side unit is made to the same specifications as the housing of the heat source side unit, when the heat source side unit and the user side unit are placed back to back on the stand, the pipe connection ports of the heat source side unit and the user side unit are far apart. This results in uneconomical long refrigerant pipes, and since it is not easy to connect the pipes at such a distant location, there is a problem in productivity that needs to be improved.

[0008] Furthermore, the installation space for the air conditioner, including the heat source unit and the service space for the user unit, becomes large, which causes a problem in terms of use in that the installation, movement and use locations of the air conditioner are restricted.

[0009] The present invention has been made in consideration of the above-mentioned circumstances, and an object of the present invention is to provide an integrated, mobile air conditioning system in which the length of refrigerant piping connecting the user unit and the heat source unit is short, and which has excellent productivity and usability. [Means for solving the problem]

[0010] The air conditioner of the present invention comprises a user side unit in which a user side heat exchanger and a user side fan are provided in a user side housing, and a heat source side unit in which a heat source side heat exchanger, a heat source side fan and a compressor are provided in a heat source side housing, and the user side unit and the heat source side unit are mounted on a single stand. Place them back to back so that the air outlet faces outward and the air inlet faces inward. An air conditioning apparatus that is installed and connected by piping, the user side housing and the heat source side housing The left and right positions are opposite to each other in terms of the blowing direction. Piping outlet but The present invention is characterized in that it is provided. Effect of the Invention

[0012] According to the air conditioner of the present invention, in an air conditioner in which a user side unit and a heat source side unit are installed on a single stand and connected by piping, the piping outlets of the user side housing and the heat source side housing are provided close to one side of the stand. This makes it possible to shorten the refrigerant piping connecting the user side unit and the heat source side unit. In addition, because the piping outlets of the user side housing and the heat source side housing are close to each other, the refrigerant piping connection work is easy in the production process of the air conditioner. This improves the productivity of the air conditioner.

[0013] In addition, since the installation space, including the service space for the user unit and the heat source unit, can be made narrower, there are fewer restrictions on where the air conditioner can be installed, and the work of moving and installing the air conditioner is also easier. This improves the utilization performance of the air conditioner.

[0014] Furthermore, according to the air conditioner of the present invention, the user side unit and the heat source side unit are installed back to back on a single stand with their respective air outlets facing outward and their air inlets facing inward, and the user side housing and the heat source side housing are provided with piping outlets at positions opposite to the left and right of the air outlet direction. This brings the piping outlets of the user side unit and the heat source side unit close to each other on the stand, shortening the refrigerant piping connecting the user side unit and the heat source side unit. This improves the productivity of the air conditioner. Also, the installation space for the user side unit and the heat source side unit is narrowed, making it easier to move and install the air conditioner.

[0015] According to the air conditioner of the present invention, the user-side housing may be formed to be installed outdoors in substantially the same specifications as the heat source-side housing. This allows workers to efficiently connect the piping and install the unit on the rack. Also, the user-side unit and the heat source-side unit can be shared, which is economical. The user-side housing may be formed to be substantially the same specifications as the heat source-side housing, which is usually installed outdoors. weather resistance Therefore, the air conditioner can be installed and used in places with harsh operating environments. [Brief description of the drawings]

[0016] [Figure 1] 1 is a side view showing a schematic configuration of an air conditioning apparatus according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a plan view of a usage-side unit of the air conditioning apparatus according to the embodiment of the present invention. [Diagram 3] FIG. 2 is a plan view of the heat source side unit of the air conditioning apparatus according to the embodiment of the present invention. [Figure 4] FIG. 2 is a plan view of a utilization side unit and a heat source side unit of the air conditioning apparatus according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an air-conditioning apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration of an air conditioning device 1 according to an embodiment of the present invention. As shown in Fig. 1, the air conditioner 1 is a mobile spot air conditioning device, and has a user-side unit 10 and a heat source-side unit 20 mounted on a stand 40. The air conditioner 1 is a mobile, powerful spot air conditioner in which the user-side unit 10 and the heat source-side unit 20 are integrated together.

[0018] The utilization side unit 10 is a device that mainly cools or heats utilization side air and supplies it. The utilization side unit 10 has a configuration equivalent to the outdoor unit of a general packaged air conditioner.

[0019] Specifically, the user-side unit 10 has a housing 11 as a user-side housing, which is a substantially box-shaped casing formed from a metal plate or the like. The housing 11 is formed in a form corresponding to that of an outdoor unit, that is, a form for installing a general packaged air conditioner outdoors. A user-side heat exchanger 12 and a user-side fan 13, which are components constituting a refrigeration cycle, are provided inside the housing 11.

[0020] The heat source unit 20 is a device that mainly radiates or absorbs heat to or from the exhaust air. The heat source unit 20 has a configuration equivalent to the outdoor unit of a general packaged air conditioner.

[0021] Specifically, the heat source side unit 20 has a housing 21 as a heat source side housing, which is a substantially box-shaped casing formed from a metal plate or the like. The housing 21 is in a form equivalent to that of a typical packaged air conditioner for outdoor installation, that is, the housing of an outdoor unit. Inside the housing 21, a heat source side heat exchanger 22 and a heat source side fan 23, which are components constituting a refrigeration cycle, are provided.

[0022] The housing 11 of the user side unit 10 is weather resistance The housing 11 of the utilization side unit 10 is made to have substantially the same specifications in terms of insulation and waterproofing as the housing 21 of the heat source side unit 20. As described above, the housing 11 of the utilization side unit 10, like the housing 21 of the heat source side unit 20, is designed for outdoor installation.

[0023] The user-side heat exchanger 12 of the user-side unit 10 is connected to the heat-source-side heat exchanger 22 of the heat-source-side unit 20 via a refrigerant pipe 28. In detail, the user-side heat exchanger 12 and the heat-source-side heat exchanger 22 are connected via a compressor (not shown) that compresses low-pressure refrigerant to high pressure, an expansion valve (not shown) that expands high-pressure refrigerant to low pressure, the refrigerant pipe 28, and other refrigerant pipes (not shown), etc., to form a vapor compression refrigeration cycle circuit. For example, an HFC refrigerant or the like is adopted as the refrigerant used in the refrigeration cycle.

[0024] A piping outlet 17 is formed in the housing 11 of the user side unit 10, through which a refrigerant piping 28 connected to the heat source side unit 20 is inserted. The piping outlet 17 is, for example, a knockout hole. With the refrigerant piping 28 inserted, the piping outlet 17 is blocked by a piping outlet blocking plate 30. The position where the piping outlet 17 is formed will be described in detail later.

[0025] A piping outlet 27 is formed in the housing 21 of the heat source side unit 20, through which a refrigerant piping 28 connected to the user side unit 10 is inserted. The piping outlet 27 is, for example, a knockout hole. The piping outlet 27 is blocked by a piping outlet blocking plate 30 with the refrigerant piping 28 inserted therethrough. The position where the piping outlet 27 is formed will be described later in detail.

[0026] The housing 11 of the user-side unit 10 is formed with an intake port 15, which is an opening for sucking in air, and an outlet port 16, which is an opening for blowing out air. The intake port 15 is provided with a user-side heat exchanger 12 that exchanges heat between the air drawn in from the outside and the refrigerant. As a result, for example, during cooling operation, the air drawn in from the outside is cooled by the refrigerant evaporating in the user-side heat exchanger 12.

[0027] A utilization-side fan 13 is provided at the air outlet 16 to blow out to the outside the air in the housing 11 that has exchanged heat with the utilization-side heat exchanger 12. The utilization-side fan 13 is, for example, a propeller fan, and is rotationally driven by a motor (not shown).

[0028] The air conditioning device 1 according to this embodiment is equipped with a particularly powerful user-side fan 13. Specifically, the user-side fan 13 has a powerful blowing capacity that can blow air out of the air outlet 16 at a wind speed of 5 m / s, for example. This allows a strong blast of air with a straight line to be delivered far away in a large-scale work site such as a factory, and allows efficient cooling or heating of only the work space by targeting the work space.

[0029] In addition, the air outlet 16 is provided with an airflow direction guide 14 for adjusting the flow direction of the air sent by the utilization-side fan 13. The airflow direction guide 14 has an outer periphery that surrounds the outer periphery of the utilization-side fan 13, for example, in a substantially cylindrical shape. The inside surrounded by the outer periphery of the airflow direction guide 14 is an opening that connects to the air outlet 16 through which the air flows, and a variable airflow direction adjustment plate (not shown) that adjusts the air flow is provided there.

[0030] With this configuration, the air cooled or heated in the utilization side heat exchanger 12 can be efficiently circulated toward the work space that requires it so that the temperature difference with the surrounding air becomes sufficiently large.

[0031] The housing 21 of the heat source unit 20 is formed with an inlet 25, which is an opening for sucking in air, and an outlet 26, which is an opening for blowing out air. The inlet 25 is provided with a heat source side heat exchanger 22 that exchanges heat between the air sucked in from the outside and the refrigerant. As a result, for example, during cooling operation, the refrigerant in the heat source side heat exchanger 22 is cooled by the air flowing in from the inlet 25. In other words, the air sucked in from the inlet 25 is heated by heat exchange with the refrigerant in the heat source side heat exchanger 22.

[0032] A heat source-side fan 23 is provided at the air outlet 26 to blow out to the outside the air inside the housing 21 that has exchanged heat with the heat source-side heat exchanger 22. The heat source-side fan 23 is, for example, a propeller fan, and is rotationally driven by a motor (not shown).

[0033] In addition, air outlet 26 is provided with air direction guide 24 for adjusting the blowing direction of air sent by heat source-side fan 23. Air direction guide 24 has an outer frame portion that surrounds the outer periphery of heat source-side fan 23 and has, for example, a substantially rectangular shape, and is formed from a metal plate material, a resin plate material, or the like.

[0034] The stand 40 is a stand that integrally supports the user side unit 10 and the heat source side unit 20. The stand 40 is formed from, for example, angle iron, channel iron, or other steel material. The stand 40 is formed with a base 41 whose outer periphery forms a substantially rectangular frame shape when viewed from above. The user side unit 10 and the heat source side unit 20 are fixed to the upper part of the base 41.

[0035] A drain pan 42 is provided between the user-side unit 10 and the stand 40. The drain pan 42 is a member for receiving moisture that adheres to and drips from the user-side heat exchanger 12 of the user-side unit 10 and discharging it into a water pipe (not shown). By providing the drain pan 42, moisture dripping from the user-side heat exchanger 12 of the user-side unit 10 can be collected and appropriately drained, and the moisture can be prevented from scattering in the work space.

[0036] The stand 40 may be formed with a user-side unit installation stand (not shown) for installing the user-side unit 10. For example, the user-side unit installation stand is formed to protrude upward from the upper part of the base 41 so that the bottom of the user-side unit 10 can be supported at a position higher than the bottom of the heat source unit 20.

[0037] In this manner, the user-side unit 10 is fixed at a high position by providing the user-side unit installation stand on the top of the base 41. By providing the user-side unit 10 at a high position, the position of the air outlet 16 of the user-side unit 10 becomes higher, and the cool air and hot air for air conditioning can be blown widely and efficiently into the work space.

[0038] Four wheels 43 are provided near the corners of the lower part of the base 41. The wheels 43 are, for example, casters having rubber wheels or the like, and one end side may be a fixed wheel that can move in a predetermined direction, and the other end side may be a swivel wheel that can change direction. By providing the wheels 43, the base 40 is configured to be movable while integrally supporting the utilization side unit 10 and the heat source side unit 20.

[0039] The user side unit 10 and the heat source side unit 20 are mounted on a stand 40 so that their respective air intake ports 15 and 25 face each other. That is, the user side unit 10 and the heat source side unit 20 are disposed back to back so that the user side heat exchanger 12 side and the heat source side heat exchanger 22 side face each other.

[0040] In other words, the utilization side unit 10 and the heat source side unit 20 are disposed so that the air outlet 16 of the utilization side unit 10 and the air outlet 26 of the heat source side unit 20 face outward, so that they blow air in opposite directions.

[0041] As described above, the user side unit 10 and the heat source side unit 20 are arranged with the intake ports 15 and 25 facing inward and the exhaust ports 16 and 26 facing in opposite directions so that air is blown out in opposite directions, thereby achieving efficient air conditioning in large factories, logistics warehouses, etc.

[0042] That is, cooled or heated air can be efficiently and powerfully blown from the air outlet 16 of the utilization side unit 10 to the work area to be air-conditioned. Then, from the air outlet 26 of the heat source side unit 20 facing the opposite side to the air outlet 16 of the utilization side unit 10, the hot exhaust air for air conditioning can be discharged to a space away from the space requiring air conditioning.

[0043] FIG. 2 is a plan view of the usage-side unit 10 of the air conditioning apparatus 1. As shown in FIG. As shown in FIG. 2, the piping outlet 17 of the housing 11 of the user side unit 10 is formed, for example, near the lower part of the right side wall with respect to the air blowing direction A.

[0044] FIG. 3 is a plan view of the heat source side unit 20 of the air conditioning apparatus 1. As shown in FIG. As shown in Fig. 3, the piping outlet 27 of the housing 21 of the heat source side unit 20 is formed near the lower part of the side wall on the opposite side to the piping outlet 17 of the housing 11 of the user side unit 10 shown in Fig. 2. Specifically, the piping outlet 27 of the housing 21 of the heat source side unit 20 is formed near the lower part of the side wall on the left side with respect to the air blowing direction B.

[0045] That is, as shown in Figures 2 and 3, the piping outlet 17 of the housing 11 of the user side unit 10 and the piping outlet 27 of the housing 21 of the heat source side unit 20 are located near the lower part of the side walls of the housing 11 and the housing 21, respectively, at positions that are approximately 180 degrees opposite each other.

[0046] In addition, conversely to the above embodiment, the piping outlet 17 of the housing 11 of the user side unit 10 may be formed near the lower part of the side wall on the left side with respect to the blowing direction A, and the piping outlet 27 of the housing 21 of the heat source side unit 20 may be formed near the lower part of the side wall on the right side with respect to the blowing direction B.

[0047] In other words, the housing 11 of the user side unit 10 and the housing 21 of the heat source side unit 20 have approximately the same outdoor installation specifications, but the piping outlet 17 of the user side unit 10 and the piping outlet 27 of the heat source side unit 20 are located in positions that are approximately 180 degrees opposite each other.

[0048] That is, the housing 11 of the utilization side unit 10 and the housing 21 of the heat source side unit 20 are provided with piping outlets 17, 27 at positions opposite to the left and right with respect to the air blowing directions A, B, respectively.

[0049] FIG. 4 is a plan view of the utilization side unit 10 and the heat source side unit 20, and shows a state in which the utilization side unit 10 and the heat source side unit 20 are connected by a refrigerant pipe . As shown in FIG. 4, in the air conditioning device 1, the piping outlet 17 of the housing 11 of the utilization side unit 10 and the piping outlet 27 of the housing 21 of the heat source side unit 20 are arranged adjacent to each other on one side of the stand 40.

[0050] With this configuration, the utilization side unit 10 and the heat source side unit 20 can be connected with refrigerant piping 28 that is shorter than in the prior art. Therefore, since the refrigerant piping 28 can be shortened, the cost of parts can be reduced, and the production cost of the air conditioner 1 can be reduced.

[0051] Furthermore, this configuration makes it easy to connect the piping between the utilization side unit 10 and the heat source side unit 20. That is, in the production process, workers can efficiently perform the work of installing the utilization side unit 10 and the heat source side unit 20 on the stand 40 and the work of connecting the piping between the utilization side unit 10 and the heat source side unit 20. This improves the productivity of the air conditioning device 1.

[0052] Furthermore, since the service space S of the utilization side unit 10 and the heat source side unit 20 on the stand 40 is compact, the total installation space including the service space S can be made small.

[0053] Therefore, when using the air conditioning device 1, it is possible to move the air conditioning device 1 into narrow spaces, and work such as moving and installing the device is also easy. In other words, the usability of the air conditioning device 1 is improved, and users can efficiently move and install the air conditioning device 1 to places where air conditioning is required, and perform air conditioning.

[0054] Also, as described above, in the air conditioning device 1 according to this embodiment, the housing 11 of the utilization side unit 10 is made to approximately the same outdoor installation specifications as the housing 21 of the heat source side unit 20. In this way, by adopting housings 11, 21 with approximately the same outdoor installation specifications for the utilization side unit 10 and the heat source side unit 20, it is possible to share components and manufacturing dies for the housings 11, 21. This makes it possible to reduce the production costs of the air conditioning device 1, making it economical.

[0055] The utilization side unit 10 is generally substantially the same as the heat source side unit 20 that is installed outdoors. weather resistance This provides excellent durability even in harsh operating environments such as factories, enabling high-performance, highly efficient air conditioning operation.

[0056] In the above description, an example of an embodiment in which the piping outlets 17, 27 are formed near the lower part of the side walls of the housings 11, 21 has been shown, but the positions at which the piping outlets 17, 27 are formed are not limited to this. The piping outlets 17, 27 may be formed, for example, on opposing wall portions of the housings 11 and 21, i.e., at positions where the user side unit 10 and the heat source side unit 20 face each other.

[0057] That is, piping outlet 17 may be provided near the lower part of the wall on the suction port 15 side of housing 11, and piping outlet 27 may be provided near the lower part of the wall on the suction port 25 side of housing 21 so as to face piping outlet 17.

[0058] For example, the piping outlet 17 of the utilization side unit 10 may be formed near the lower part of the wall of the housing 11 on the utilization side heat exchanger 12 side, on the right side of the blowing direction A shown in Fig. 2. And the piping outlet 27 of the heat source side unit 20 may be formed near the lower part of the wall of the housing 21 on the heat source side heat exchanger 22 side, on the left side of the blowing direction B shown in Fig. 3.

[0059] In this way, even by configuring the piping outlet 17 of the user side unit 10 and the piping outlet 27 of the heat source side unit 20 to be positioned symmetrically on the left and right sides of the wall portion on the suction port 15, 25 side of the housings 11, 21 in the outdoor installation specifications, an integrated mobile air conditioning unit with short refrigerant piping 28 can be obtained.

[0060] In this embodiment, the housing 11 of the utilization side unit 10 has substantially the same outdoor installation specifications as the housing 21 of the heat source side unit 20, but the size and shape of the housings 11, 21 are not limited to being the same. The size and shape of the utilization side heat exchanger 12 and the heat source side heat exchanger 22 may be different.

[0061] For example, in order to improve heat exchange efficiency, the heat source side heat exchanger 22 may have a larger air blowing area, i.e., an area seen from the suction ports 15, 25 in the blowing directions A, B, than the utilization side heat exchanger 12. Specifically, the height dimension of the heat source side heat exchanger 22 may be larger than the height dimension of the utilization side heat exchanger 12.

[0062] 1 may be provided in greater numbers than the user-side fans 13. For example, two heat-source-side fans 23 may be provided. Even with such a configuration, it is possible to obtain an air conditioner 1 that can blow out suitable cool air even when the surrounding temperature is high, and that has excellent energy-saving properties.

[0063] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit and scope of the present invention. [Explanation of symbols]

[0064] 1. Air conditioning equipment 10 User unit 11. Housing 12 User side heat exchanger 13 User side fan 14 Wind Direction Guide 15 Intake port 16 Air outlet 17 Piping outlet 20 Heat source unit 21 Housing 22 Heat source side heat exchanger 23 Heat source fan 24 Wind Direction Guide 25 Intake port 26 Air outlet 27 Piping outlet 28 Refrigerant piping 30 Piping outlet blocking plate 40 Mount 41 Foundation 42 Drain pan 43 wheels S Service Space A, B blowing direction

Claims

1. a utilization side unit including a utilization side heat exchanger and a utilization side fan provided in a utilization side housing; a heat source side unit in which a heat source side heat exchanger, a heat source side fan, and a compressor are provided in a heat source side housing, The user side unit and the heat source side unit are installed back to back on a single stand with their respective air outlets facing outward and their respective air inlets facing inward, and the air conditioning apparatus is connected by piping, The air conditioner according to claim 1, wherein the utilization side housing and the heat source side housing are provided with piping outlets at positions opposite to the left and right with respect to the blowing direction.

2. 2. The air conditioner according to claim 1, wherein the utilization side housing is formed to the same outdoor installation specifications as the heat source side housing.

Images