Water chilling unit

Abstract

The utility model relates to the technical field of refrigeration, and particularly discloses a water chilling unit. The water chilling unit comprises a case and a condenser. The condenser is arranged in the machine box and comprises a first condenser body, a second condenser body and a third condenser body which are arranged in an inclined mode. The first end of the first condenser body is adjacent to the first end of the second condenser body, the second end of the first condenser body and the second end of the second condenser body are opened, and the second end of the second condenser body is adjacent to the second end of the third condenser body. The first end of the second condenser body and the first end of the third condenser body are opened, and the second end of the first condenser body and the first end of the third condenser body are arranged adjacent to the two opposite sides of the machine box respectively. The water chilling unit is more compact in overall structure and smaller in size, so that layout and installation in the environment such as a container are facilitated, and a larger arrangement space can be reserved for other equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigeration technical field more specifically, relate to a water chiller. BACKGROUND

[0002] Water chiller has wide application in various trades and professions, such as being used for container refrigeration. Water chiller generally includes refrigerant circulation system and water circulation system, and the refrigerant circulation system usually includes evaporator, condenser, compressor, fan and other devices, and the water circulation system usually includes water pump and other devices. The condenser usually adopts V-shaped condenser, which includes two condenser bodies distributed in V shape.

[0003] In the process of realizing the present application, the inventor found that there are at least the following problems in the prior art:

[0004] The overall size of the water chiller is large, which is not conducive to layout and installation in the environment such as container. Therefore, how to make the water chiller compact and reduce the volume is a technical problem to be solved in the field. UTILITY MODEL CONTENTS

[0005] Therefore, the purpose of the utility model is to provide a water chiller, and the structural design of the water chiller can effectively solve the problem of large volume of the water chiller.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0007] A water chiller, comprising:

[0008] A case;

[0009] A condenser is arranged in the case, and the condenser comprises a first condenser body, a second condenser body and a third condenser body arranged obliquely respectively, the first end of the first condenser body is adjacent to the first end of the second condenser body, the second end of the first condenser body is away from the second end of the second condenser body, the second end of the second condenser body is adjacent to the second end of the third condenser body, the first end of the second condenser body is away from the first end of the third condenser body, and the second end of the first condenser body and the first end of the third condenser body are arranged adjacent to the two opposite sides of the case respectively.

[0010] Optionally, in the above water chiller, the condenser further comprises:

[0011] A first connecting piece, the first end of the first condenser body and the first end of the second condenser body are arranged in the first connecting piece respectively;

[0012] A second connecting piece, the second end of the second condenser body and the second end of the third condenser body are respectively arranged on the second connecting piece.

[0013] Optionally, in the water chiller, the condenser further comprises two third connecting pieces, which are respectively arranged on opposite sides of the condenser, and the second condenser body and the third condenser body are respectively arranged on the corresponding third connecting pieces.

[0014] Optionally, in the water chiller, at least one of the first connecting piece, the second connecting piece and the third connecting piece is connected with the cabinet.

[0015] Optionally, in the water chiller, the third connecting piece comprises a triangular plate and a vertical plate, the vertical plate is arranged on two sides of the triangular plate and corresponds to the side of the second condenser body and the third condenser body respectively.

[0016] Optionally, in the water chiller, the opening angle between the first condenser body and the second condenser body is equal to the opening angle between the second condenser body and the third condenser body.

[0017] Optionally, in the water chiller, the cabinet is provided with a first installation area, a second installation area and a third installation area arranged in sequence, the fan of the water chiller is arranged in the first installation area, the condenser is arranged in the second installation area, and the water pump, the evaporator and the compressor of the water chiller are arranged in the third installation area.

[0018] Optionally, in the water chiller, the water pump, the evaporator and the compressor are arranged along the length direction of the third installation area.

[0019] Optionally, in the water chiller, the water chiller comprises two compressors, the two compressors are respectively used for communicating with the first condenser body, the second condenser body and the third condenser body, and the two compressors are respectively arranged at two ends of the length direction of the third installation area.

[0020] Optionally, in the water chiller, the electric control box of the water chiller is arranged at one end of the width direction of the third installation area, the heater of the water chiller is arranged at the other end of the width direction of the third installation area, and the heater, the water pump, the evaporator and the expansion tank of the water chiller are sequentially arranged along the length direction of the third installation area between the two compressors.

[0021] The water chiller provided by the utility model has at least the following beneficial effects:

[0022] The water chiller unit provided by the utility model comprises a case and a condenser. The condenser is arranged on the case, and the condenser comprises a first condenser body, a second condenser body and a third condenser body, which are arranged in a staggered manner. The first end of the first condenser body is adjacent to the first end of the second condenser body, the second end of the first condenser body is away from the second end of the second condenser body, the second end of the second condenser body is adjacent to the second end of the third condenser body, the first end of the second condenser body is away from the first end of the third condenser body, and the second end of the first condenser body and the first end of the third condenser body are arranged adjacent to the opposite sides of the case respectively.

[0023] The water chiller unit provided by the utility model comprises a first condenser body, a second condenser body and a third condenser body arranged in a staggered manner, and the first end of the first condenser body and the first end of the third condenser body are arranged adjacent to the opposite sides of the case respectively, so that the space of the case can be fully utilized. Compared with the conventional V-shaped condenser, the water chiller unit provided by the utility model has a larger heat exchange area, so that the heat exchange efficiency can be improved. Similarly, in the case of providing the same heat exchange area, the water chiller unit provided by the utility model has a smaller overall volume and occupies a smaller space, so that the overall structure of the water chiller unit is more compact, the volume is reduced, the layout and installation in the container and other environments are facilitated, and a larger arrangement space can be reserved for the battery and other devices. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative labor.

[0025] Figure 1 It is a structure schematic view of the water chiller unit of one specific embodiment of the utility model.

[0026] Figure 2 It is a front view schematic view of the water chiller unit.

[0027] Figure 3 It is an explosion schematic view of the water chiller unit.

[0028] Figure 4 It is a structure schematic view of the condenser.

[0029] REFERENCE SIGNS:

[0030] 1-cabinet; 2-condenser; 3-fan; 4-pump; 5-evaporator; 6-compressor; 7-heater; 8-expansion tank; 9-electric control box; 10-water supplement tank;

[0031] 11-first mounting area; 12-second mounting area; 13-third mounting area;

[0032] 21-first condenser body; 22-second condenser body; 23-third condenser body; 211-first end of the first condenser body; 212-second end of the first condenser body; 221-first end of the second condenser body; 222-second end of the second condenser body; 231-first end of the third condenser body; 232-second end of the third condenser body; 24-first connecting piece; 25-second connecting piece; 26-third connecting piece; 261-triangle plate; 262-vertical plate. DETAILED DESCRIPTION

[0033] The utility model discloses an example of a water chiller to improve space utilization and reduce space occupation.

[0034] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative work belong to the protection scope of the utility model.

[0035] The water chiller provided in the application specifically comprises a cabinet, a refrigerant circulation assembly and a cooling water circulation assembly. The refrigerant circulation assembly is arranged in the cabinet and can realize circulation of refrigerant. The cooling water circulation assembly is arranged in the cabinet and can realize circulation of cooling water. The cooling water includes but is not limited to water or water solution with additives. The cooling water circulation assembly is connected with the refrigerant circulation assembly. The cooling water can exchange heat with the refrigerant in the refrigerant circulation assembly after cooling the heat generating equipment.

[0036] Exemplarily, the refrigerant circulation assembly comprises a compressor, a condenser, an evaporator and a throttling device, the evaporator comprises a first heat exchange channel and a second heat exchange channel, and heat exchange can be performed between the first heat exchange channel and the second heat exchange channel, the compressor, the condenser, the throttling device and the first heat exchange channel of the evaporator are connected by a first pipeline respectively, forming a refrigerant circulation loop. The second heat exchange channel of the evaporator, the water pump and the expansion tank are connected by a second pipeline with a load end respectively, forming a cooling liquid circulation loop, and being used for cooling the heating equipment of the load end, and the expansion tank can play a role of pressure setting and liquid supplement. The water chiller can be a wind-cooled water chiller, that is, a fan is arranged in cooperation with the condenser, and the fan drives the flow of gas to exchange heat with the condenser to take away the heat of the condenser.

[0037] In the present application, the layout of each device of the water chiller is mainly optimized to ensure that the unit can also meet the refrigeration requirements in the case of relatively small size. In the following embodiments, the layout of each device is mainly described.

[0038] In some embodiments, referring to Figures 1-4 The water chiller provided by the utility model comprises a case 1 and a condenser 2. The case 1 is a main supporting structure of the water chiller, and can be a frame structure, a box-shaped structure or other structures according to requirements. The condenser 2 is arranged on the case 1, and the condenser 2 comprises a first condenser body 21, a second condenser body 22 and a third condenser body 23. It can be understood that the structures of the first condenser body 21, the second condenser body 22 and the third condenser body 23 can be the same or different. Unlike the conventional V-shaped condenser 2, the condenser 2 in the embodiment is composed of three heat exchangers. The first condenser body 21, the second condenser body 22 and the third condenser body 23 are arranged obliquely to increase the heat exchange area.

[0039] The first end 211 of the first condenser body 21 is adjacent to the first end 221 of the second condenser body 22, and the second end 212 of the first condenser body 21 is open and far away from the second end 222 of the second condenser body 22. The second end 222 of the second condenser body 22 is adjacent to the second end 232 of the third condenser body 23, and the first end 221 of the second condenser body 22 is open and far away from the first end 231 of the third condenser body 23. It can be understood that the first end 211 of the first condenser body 21 is opposite to the second end thereof, the first end 221 of the second condenser body 22 is opposite to the second end thereof, and the first end 231 of the third condenser body 23 is opposite to the second end thereof. Figure 1In the specific implementation, the first end is the end close to the fan 3, and the second end is the end away from the fan 3. As arranged above, the first condenser body 21, the second condenser body 22 and the third condenser body 23 are arranged in a zigzag shape, and specifically, can be arranged in an N shape. In addition, it should be noted that the adjacent mentioned herein and below means that two components are arranged in abutment, or there is a spacing between two components and no other components are arranged in the spacing.

[0040] The second end 212 of the first condenser body 21 and the first end 231 of the third condenser body 23 are arranged adjacent to the opposite sides of the cabinet 1, respectively. That is, the second end 212 of the first condenser body 21 is arranged adjacent to one side of the cabinet 1, and the first end 231 of the third condenser body 23 is arranged adjacent to the other side of the cabinet 1 opposite to the one side. The first condenser body 21, the second condenser body 22 and the third condenser body 23 occupy the space between the opposite sides of the cabinet 1, so that the space in this direction is fully utilized, and the heat exchange area of the condenser 2 as a whole is increased. Exemplarily, the second end 212 of the first condenser body 21 and the first end 231 of the third condenser body 23 are arranged in abutment with the opposite sides of the cabinet 1, respectively.

[0041] The water chiller provided by the utility model has the condenser 2 including the first condenser body 21, the second condenser body 22 and the third condenser body 23 arranged in sequence and adjacent to each other, the three are arranged in an inclined manner, and the second end 212 of the first condenser body 21 and the first end 231 of the third condenser body 23 are arranged adjacent to the opposite sides of the cabinet 1, respectively, so that the space of the cabinet 1 can be fully utilized. Compared with the conventional V-shaped condenser 2, the water chiller provided by the utility model has a larger heat exchange area provided by the condenser 2 as a whole under the condition of occupying the same space, so that the heat exchange efficiency can be improved. Similarly, under the condition of providing the same heat exchange area, the water chiller provided by the utility model has a smaller volume and occupies a smaller space, so that the overall structure of the water chiller is more compact, and the volume of the water chiller is reduced, so as to facilitate the layout and installation in the environment of a container and the like.

[0042] Exemplarily, the first condenser body 21, the second condenser body 22 and the third condenser body 23 extend along the length direction of the cabinet 1 and are arranged in sequence and abutted along the width direction of the cabinet 1, and the second end 212 of the first condenser body 21 and the first end 231 of the third condenser body 23 are arranged in abutment with the opposite sides of the cabinet 1 along the width direction, respectively.

[0043] In some embodiments, the condenser 2 further comprises a first connecting member 24 and a second connecting member 25. The first end 211 of the first condenser body 21 and the first end 221 of the second condenser body 22 are respectively arranged at the first connecting member 24. That is, the first connecting member 24 connects the first end 211 of the first condenser body 21 and the first end 221 of the second condenser body 22. The second end 222 of the second condenser body 22 and the second end 232 of the third condenser body 23 are respectively arranged at the second connecting member 25. That is, the second connecting member 25 connects the second end 222 of the second condenser body 22 and the second end 232 of the third condenser body 23, so that the first connecting member 24 and the second connecting member 25 connect the first condenser body 21, the second condenser body 22 and the third condenser body 23 as a whole, so as to facilitate the installation of the whole condenser 2 in the case 1. The condenser 2 can be assembled as a whole, and then assembled with the case 1, which facilitates the assembly operation.

[0044] In some embodiments, the condenser 2 further comprises two third connecting members 26, which are respectively arranged at opposite sides of the condenser 2, and the opposite sides of the second condenser body 22 and the third condenser body 23 are respectively arranged at the corresponding third connecting members 26. The second condenser body 22 and the third condenser body 23 are further fixed from both sides by the third connecting members 26, so that the connection is more stable and reliable, and the second condenser body 22 and the third condenser body 23 can be kept in a state of a preset included angle. For example, the two third connecting members 26 are respectively arranged at the two sides in the length direction of the condenser 2, and the opposite sides in the length direction of the second condenser body 22 and the third condenser body 23 are respectively connected by the corresponding third connecting members 26.

[0045] In some embodiments, at least one of the first connecting member 24, the second connecting member 25 and the third connecting member 26 is connected with the cabinet 1. After the first condenser body 21, the second condenser body 22 and the third condenser body 23 are connected as a whole, the first condenser body 21, the second condenser body 22 and the third condenser body 23 are connected with the cabinet 1 through at least one of the first connecting member 24, the second connecting member 25 and the third connecting member 26. In one way, the condenser 2 is connected with the cabinet 1 through the first connecting member 24, the second connecting member 25 or the third connecting member 26. In another way, the condenser 2 is connected with the cabinet 1 through the first connecting member 24 and the second connecting member 25; or, the condenser 2 is connected with the cabinet 1 through the second connecting member 25 and the third connecting member 26; or, the condenser 2 is connected with the cabinet 1 through the first connecting member 24 and the third connecting member 26. In another way, the condenser 2 is connected with the cabinet 1 through the first connecting member 24, the second connecting member 25 and the third connecting member 26. By connecting with the cabinet 1 through the first connecting member 24, the second connecting member 25 or the third connecting member 26, the structure is simplified, and it is not necessary to separately provide a structure for connecting with the cabinet 1 on the condenser 2. Specifically, at least one of the first connecting member 24, the second connecting member 25 and the third connecting member 26 is detachably connected with the cabinet 1, such as bolt connection. Thus, the condenser 2 as a whole can be conveniently detached from the cabinet 1, and the maintenance of the condenser is facilitated.

[0046] In some embodiments, the third connecting member 26 comprises a triangular plate 261 and a vertical plate 262, and the vertical plate 262 is arranged on two sides of the triangular plate 261 and corresponds to the side edges of the second condenser body 22 and the third condenser body 23, respectively. By using the triangular plate 261 to support the second condenser body 22 and the third condenser body 23, the overall structure is more stable and reliable due to the stability of the triangle. For example, the vertical plate 262 is perpendicular to the triangular plate 261, and the vertical plate 262 is convenient to connect with the second condenser body 22 and the third condenser body 23, or to connect with the cabinet 1. In the case that the second condenser body 22 and the third condenser body 23 have the same shape and size, the lengths of the two sides of the triangular plate 261 corresponding to the second condenser body 22 and the third condenser body 23 are equal, i.e. the triangular plate 261 is an isosceles triangular plate 261, so that the overall structure of the condenser is more stable and reliable.

[0047] In some embodiments, the opening angle α between the first condenser body 21 and the second condenser body 22 is equal to the opening angle β between the second condenser body 22 and the third condenser body 23. For example, the first condenser body 21 is parallel to the third condenser body 23. By the above arrangement, the space is fully utilized, and the inclination degrees of the first condenser body 21, the second condenser body 22 and the third condenser body 23 are the same, so that the refrigeration effects provided by the first condenser body 21, the second condenser body 22 and the third condenser body 23 are similar, thereby making the temperature distribution of the refrigerant more uniform, and thus improving the refrigeration efficiency of the water chiller.

[0048] In some embodiments, the second end 222 of the second condenser body 22 and the second end 232 of the third condenser body 23 are detachably connected with the second connecting member 25, the first connecting member 24 comprises a first connecting part and a second connecting part capable of relative rotation, and the first connecting part and the second connecting part can be locked in different positions of the rotation stroke. For example, the first connecting part and the second connecting part are connected by bolts, when the bolts are loosened, the two can rotate relative to each other, and when the bolts are tightened, the two are fastened. As arranged above, the third condenser body 23 can be connected to the second condenser body 22 or detached from the condenser body according to the needs. And after the third condenser body 23 is detached, the included angle between the first condenser body 21 and the second condenser body 22 can be adjusted to adapt to the width of the cabinet 1, so that the combination mode of the water chiller is more diversified.

[0049] In some embodiments, the cabinet 1 is provided with a first installation area 11, a second installation area 12 and a third installation area 13 distributed in sequence, the fan 3 of the water chiller is arranged in the first installation area 11, the condenser 2 is arranged in the second installation area 12, and the water pump 4, the evaporator 5 and the compressor 6 of the water chiller are arranged in the third installation area 13. Figure 1 In some embodiments, the first installation area 11, the second installation area 12 and the third installation area 13 are distributed in sequence along the height of the cabinet 1. As arranged above, the connection between the compressor 6, the condenser 2 and the evaporator 5 can be facilitated, and at the same time, the internal longitudinal space of the water chiller is fully utilized, so that the internal structure of the water chiller is more compact, and the space required for installing the water chiller is reduced. In addition, the fan 3 is arranged in the first installation area 11, which can effectively reduce the noise generated by the rotation of the fan 3.

[0050] In some embodiments, the water pump 4, the evaporator 5 and the compressor 6 are arranged along the length direction of the third installation area 13. As arranged above, the layout is more reasonable, and the congestion degree of the space at the bottom of the water chiller is reduced, thereby reducing the air resistance, making the airflow more uniform, and the return air heat dissipation more smooth, thereby improving the heat exchange efficiency and the performance of the water chiller.

[0051] In some embodiments, the water chiller comprises two compressors 6, and the two compressors 6 are respectively used for communicating with the first condenser body 21, the second condenser body 22 and the third condenser body 23, and the two compressors 6 are respectively arranged at two ends of the length direction of the third installation area 13. The two compressors 6 form a double cycle, which further improves the efficiency of the water chiller. The two compressors 6 are large in size and generate a large amount of heat during operation, so they are respectively arranged at two ends of the length direction of the third installation area 13, that is, they are arranged far away from each other, so as to avoid the heat concentration and affect the refrigeration effect of the water chiller. And the two compressors 6 are respectively arranged on the two sides, which is convenient for connecting with the condenser 2.

[0052] In some embodiments, the electric control box 9 of the water chiller is arranged at one end of the third installation area 13 in the width direction, the heater 7 of the water chiller is arranged at the other end of the third installation area 13 in the width direction, and the heater 7, the water pump 4, the evaporator 5 and the expansion tank 8 of the water chiller are sequentially arranged along the length direction of the third installation area 13 between the two compressors 6. For the convenience of description, the width direction is referred to as the front-rear direction, and the length direction is referred to as the left-right direction. In this embodiment, the third installation area 13 is designed in a front-rear layout structure, the electric control box 9 is arranged at the front side inside the third installation area 13, and the compressor 6, the expansion tank 8, the evaporator 5, the water pump 4, the heater 7, the other compressor 6 and the water replenishing tank 10 are sequentially arranged from left to right at the back of the electric control box 9. As arranged above, the layout is more reasonable, the congestion degree of the space at the bottom of the water chiller is reduced, the air resistance is reduced, the airflow is more uniform, the return air is more smooth, and the heat exchange efficiency is improved, so that the performance of the water chiller is more outstanding. At the same time, the electric control box 9 is arranged at the front side, so that the maintenance and other operations of the electric control box 9 are facilitated.

[0053] In some embodiments, the evaporator 5 is a plate heat exchanger, which has simple and compact structure and saves the occupied space of the water chiller as a whole. In other embodiments, the evaporator 5 can also have other structures.

[0054] The embodiments in the specification are described in a progressive manner, and each embodiment mainly explains the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0055] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A water chiller unit, characterized in that, include: Chassis (1); A condenser (2) is disposed in the chassis (1). The condenser (2) includes a first condenser body (21), a second condenser body (22), and a third condenser body (23) that are respectively inclined. The first end (211) of the first condenser body (21) is adjacent to the first end (221) of the second condenser body (22). The second end (212) of the first condenser body (21) is far away from the second end (222) of the second condenser body (22). The second end (222) of the second condenser body (22) is adjacent to the second end (232) of the third condenser body (23). The first end (221) of the second condenser body (22) is far away from the first end (231) of the third condenser body (23). The second end (212) of the first condenser body (21) and the first end (231) of the third condenser body (23) are respectively adjacent to the two sides opposite to the chassis (1).

2. The chiller unit according to claim 1, characterized in that, The condenser (2) also includes: The first connector (24) has the first end (211) of the first condenser body (21) and the first end (221) of the second condenser body (22) respectively located on the first connector (24). The second connector (25) has the second end (222) of the second condenser body (22) and the second end (232) of the third condenser body (23) respectively located on the second connector (25).

3. The chiller unit according to claim 2, characterized in that, The condenser (2) also includes two third connectors (26), which are respectively disposed on opposite sides of the condenser (2). The opposite sides of the second condenser body (22) and the third condenser body (23) are respectively disposed on the corresponding third connectors (26).

4. The chiller unit according to claim 3, characterized in that, At least one of the first connector (24), the second connector (25) and the third connector (26) is connected to the chassis (1).

5. The chiller unit according to claim 3, characterized in that, The third connector (26) includes a triangular plate (261) and a vertical plate (262). The vertical plate (262) is located on both sides of the triangular plate (261) and corresponds to the sides of the second condenser body (22) and the third condenser body (23), respectively.

6. The chiller unit according to claim 1, characterized in that, The angle (α) between the first condenser body (21) and the second condenser body (22) and the angle (β) between the second condenser body (22) and the third condenser body (23) are equal.

7. The chiller unit according to any one of claims 1-6, characterized in that, The chassis (1) is provided with a first installation area (11), a second installation area (12) and a third installation area (13) arranged in sequence. The fan (3) of the chiller unit is located in the first installation area (11), the condenser (2) is located in the second installation area (12), and the water pump (4), evaporator (5) and compressor (6) of the chiller unit are all located in the third installation area (13).

8. The chiller unit according to claim 7, characterized in that, The water pump (4), the evaporator (5), and the compressor (6) are arranged along the length of the third installation area (13).

9. The chiller unit according to claim 7, characterized in that, The chiller unit includes two compressors (6), which are respectively used to communicate with the first condenser body (21), the second condenser body (22) and the third condenser body (23), and the two compressors (6) are respectively located at both ends of the length direction of the third installation area (13).

10. The chiller unit according to claim 9, characterized in that, The electrical control box (9) of the chiller unit is located at one end of the width direction of the third installation area (13), and the heater (7) of the chiller unit is located at the other end of the width direction of the third installation area (13). The heater (7), the water pump (4), the evaporator (5) and the expansion tank (8) of the chiller unit are distributed sequentially along the length direction of the third installation area (13) between the two compressors (6).

Images