Water chilling unit

Abstract

The invention discloses a water chilling unit, and relates to the technical field of refrigeration equipment, the water chilling unit comprises a mounting rack, and the mounting rack comprises an upper accommodating cavity and a lower accommodating cavity which are distributed up and down along a first direction; the condensing fan, the dry cooler and the condenser are sequentially arranged in the upper containing cavity in a stacked mode in the second direction, and the plate heat exchanger, the expansion tank, the circulating pump and the compressor are sequentially arranged in the lower containing cavity side by side in the third direction. The first direction, the second direction and the third direction are perpendicular to each other. Each part of the water chilling unit is divided into two parts, the two parts are arranged in the mounting frame in an up-down distribution mode, and each part is arranged in a stacked or side-by-side mode according to the appearance, so that each part of the water chilling unit can be compactly arranged in the mounting frame, the arrangement is more reasonable, the size of the water chilling unit can be reduced to a certain extent, and the occupied space is smaller.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and in particular to a water chiller. Background Art

[0002] The chiller evaporates the low-temperature and low-pressure refrigerant through the evaporator to absorb heat from the surrounding environment. After compression, the refrigerant becomes a high-temperature and high-pressure gas, releases heat in the condenser and turns into liquid. The liquid refrigerant then enters the evaporator again through the expansion valve, and the process is repeated to achieve refrigeration.

[0003] In the process of realizing the present application, the inventors found that there are at least the following technical problems in the prior art: the existing chillers have unreasonable internal structure layout, resulting in a large overall size and occupying too much space. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a chiller, in which the components are arranged in an up-and-down distribution manner in a mounting frame and are arranged in a stacked or side-by-side manner. The layout of the entire unit is relatively compact, which effectively solves the technical problem of the existing chiller occupying a large space.

[0005] To achieve the above-mentioned purpose, the present invention provides a chiller, including a mounting frame, the mounting frame including an upper accommodating chamber and a lower accommodating chamber distributed up and down along a first direction; also including a condensing fan, a dry cooler and a condenser stacked in sequence in the upper accommodating chamber along a second direction, and a plate heat exchanger, an expansion tank, a circulating pump and a compressor arranged side by side in sequence in the lower accommodating chamber along a third direction; the first direction, the second direction and the third direction are perpendicular to each other.

[0006] Preferably, it further comprises an upper pipe heater and a lower pipe heater distributed on both sides of the expansion tank along the first direction.

[0007] Preferably, it further comprises an expansion water tank, which is located above the expansion tank; the expansion water tank and the plate heat exchanger are both distributed along the second direction.

[0008] Preferably, a left side plate is fixedly provided on one side of the lower accommodating chamber, and one end of the expansion water tank is fixedly provided on the left side plate; the upper pipeline heater is fixedly connected to a side of the expansion water tank away from the left side plate.

[0009] Preferably, a back side plate is fixedly arranged at the back of the lower accommodating chamber, and the expansion tank and the circulating pump are both fixedly arranged at the back side plate.

[0010] Preferably, a bottom side plate is fixedly provided at the bottom of the lower accommodating chamber, and the plate heat exchanger, the lower pipe heater and the compressor are all fixedly provided on the bottom side plate.

[0011] Preferably, the mounting frame comprises a front frame and a rear frame arranged in parallel along the second direction, a bearing plate is fixedly arranged between the front frame and the rear frame, and the upper accommodating cavity and the lower accommodating cavity are respectively arranged on both sides of the bearing plate; the bearing plate is provided with a forklift hole.

[0012] Preferably, a fixed plate is fixed in the upper accommodating cavity; the condensing fan and the condenser are respectively arranged on both sides of the fixed plate; the condensing fan includes an upper fan and a lower fan distributed up and down along the first direction, and the upper fan and the lower fan are both fixed on the fixed plate.

[0013] Preferably, an exhaust valve is fixedly provided on a side of the fixing plate away from the condenser, and the exhaust valve is connected to the top of the dry cooler.

[0014] Preferably, it also includes a liquid inlet pipe and a liquid outlet pipe fixedly arranged at the bottom of the lower accommodating chamber, and the circulating pump is fixedly arranged just above the liquid inlet pipe.

[0015] Compared with the prior art, the chiller provided by the present invention has at least the following beneficial effects:

[0016] The present invention optimizes the structure of the mounting frame of the chiller, and the optimized mounting frame includes an upper accommodating chamber and a lower accommodating chamber which are distributed up and down along a first direction, wherein the condensing fan, the dry cooler and the condenser are stacked in the upper accommodating chamber in sequence along the second direction, and the plate heat exchanger, the expansion tank, the circulating pump and the compressor are arranged in the lower accommodating chamber in sequence side by side along the third direction; that is, the components of the chiller are divided into two parts, and the two parts are arranged in the mounting frame in an up-and-down distribution manner, and each part is arranged in a stacked or side-by-side manner according to the appearance, so that the components of the chiller can be compactly arranged in the mounting frame, the layout is more reasonable, the size of the chiller can be reduced to a certain extent, and the space occupied is smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 A front view of a water chiller provided by a specific embodiment of the present invention;

[0019] Figure 2 for Figure 1 Axonometric view of

[0020] Figure 3 The present invention provides a working principle diagram of a chiller according to a specific embodiment of the present invention.

[0021] The reference numerals are as follows:

[0022] Mounting frame 11, condensing fan 12, dry cooler 13, condenser 14, plate heat exchanger 15, expansion tank 16, circulating pump 17, compressor 18, upper pipe heater 19, lower pipe heater 20, expansion water tank 21, exhaust valve 22, liquid inlet pipe 23, liquid outlet pipe 24, first branch pipe 25, second branch pipe 26, control valve 27, third branch pipe 28 and expansion valve 29;

[0023] An upper accommodating chamber 111, a lower accommodating chamber 112, a left side plate 113, a back side plate 114, a bottom side plate 115, a front frame 116, a rear frame 117, a bearing plate 118 and a fixing plate 119;

[0024] Forklift hole 1181;

[0025] An upper fan 121 and a lower fan 122 . DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] The embodiment of the present invention discloses a water chiller, as shown in the attached Figure 1 and 2 As shown, the mounting frame 11 includes an upper accommodating chamber 111 and a lower accommodating chamber 112 which are distributed up and down along a first direction. The upper accommodating chamber 111 and the lower accommodating chamber 112 are independent of each other, and the arrangement of the components inside the upper accommodating chamber 111 is different. On the basis of meeting the thinning design requirements, the layout of the components in the upper accommodating chamber 111 also needs to meet the design requirements of large ventilation volume, and the layout of the components in the lower accommodating chamber 112 also needs to meet the design requirements of convenient maintenance.

[0029] It should be noted that the upper accommodating chamber 111 is a non-enclosed structure, ensuring that the top and both sides of the chiller can be ventilated, significantly reducing wind resistance, increasing the overall ventilation volume, reducing the overall noise level, and achieving efficient refrigeration and energy saving in a limited space. The lower accommodating chamber 112 is a closed structure, surrounded by multiple side panels, ensuring that the entire unit has good waterproof performance.

[0030] The chiller also includes a condensing fan 12, a dry cooler 13 and a condenser 14 which are stacked in sequence in the upper accommodating chamber 111 along the second direction; considering that the dry cooler 13 and the condenser 14 are both plate structures, the components in the upper accommodating chamber 111 are arranged in a stacked manner, which can reduce the length or width of the chiller as a whole, make the layout more compact, and occupy less space.

[0031] Furthermore, the chiller also includes a plate heat exchanger 15, an expansion tank 16, a circulating pump 17 and a compressor 18 which are arranged side by side in the lower accommodating chamber 112 along the third direction; that is, the components in the lower accommodating chamber 112 are arranged side by side to make full use of the space of the lower accommodating chamber 112, with a more compact layout and a smaller occupied space. It can also avoid overlapping components and increase the difficulty of inspection and maintenance, making maintenance convenient.

[0032] The first direction, the second direction and the third direction are perpendicular to each other. It should be noted that the first direction in the text refers to the length direction of the mounting frame 11, specifically to the attachment Figure 2 The second direction refers to the thickness direction of the mounting frame 11, specifically refers to the attached Figure 2 The third direction refers to the width direction of the mounting frame 11, specifically the attached Figure 2 The X-axis in .

[0033] To sum up, the components of the chiller are mainly divided into two parts, which are arranged in an up-and-down manner in the mounting frame 11, and each part is arranged in a stacked or side-by-side manner according to the appearance, so that the components of the chiller can be compactly arranged in the mounting frame 11, the layout is more reasonable, and the size of the chiller can be reduced to a certain extent, occupying less space.

[0034] The chiller also includes an upper pipe heater 19 and a lower pipe heater 20 distributed on both sides of the expansion tank 16 along the first direction. That is, the upper pipe heater 19 and the lower pipe heater 20 are arranged in an up-and-down manner and are distributed on both sides of the expansion tank 16, which can not only keep the two pipe heaters at an appropriate distance from other components to avoid affecting the installation of other components and facilitate the daily maintenance and inspection of the pipe heaters, but also make full use of the space of the lower accommodating chamber 112 to achieve a compact layout and effectively reduce the occupied space. In this way, the number of components in the chiller is reduced, the layout is simple, the assembly is more convenient, and a thin design can be achieved.

[0035] The chiller also includes an expansion water tank 21, which is located above the expansion tank 16; the expansion water tank 21 and the plate heat exchanger 15 are distributed along the second direction, which not only optimizes the liquid replenishment effect, but also enables the expansion water tank 21 to effectively utilize the space on the upper left of the lower accommodating chamber 112, making the layout more compact and space-saving, naturally reducing the occupied space, and making maintenance more convenient.

[0036] A left side plate 113 is fixedly provided on one side of the lower accommodating chamber 112, and one end of the expansion water tank 21 is fixedly provided on the left side plate 113 to ensure that the expansion water tank 21 is firmly fixed. The upper pipe heater 19 is fixedly connected to the side of the expansion water tank 21 away from the left side plate 113, optimizing the liquid replenishment effect under the premise of meeting the compact layout. In addition, a right side plate is fixedly provided on the other side of the lower accommodating chamber 112, and the left side plate 113 and the right side plate are parallel to each other, and the two respectively block the left and right sides of the lower accommodating chamber 112.

[0037] The back of the lower accommodating chamber 112 is fixedly provided with a back side plate 114, and the expansion tank 16 and the circulating pump 17 are both fixedly provided on the back side plate 114, so as to ensure that the expansion tank 16 and the circulating pump 17 are firmly fixed and realize a compact layout. Specifically, the backs of both the expansion tank 16 and the circulating pump 17 are fixedly provided with a connecting seat, and an adjustable structure is adopted between the connecting seat and the back side plate 114; that is, the back side plate 114 is provided with a plurality of groups of mounting holes, and the connecting seat is selectively connected to one of the groups of mounting holes by means of bolts, and by adjusting the mounting position of the connecting seat on the back side plate 114, the fixed positions of the expansion tank 16 and the circulating pump 17 on the back side plate 114 can be flexibly adjusted to compensate for the assembly errors of the components, improve the assembly accuracy, and avoid interference of the components during the assembly process. The front side of the lower accommodating chamber 112 is provided with a double-opening door, which can not only protect the components in the lower accommodating chamber 112, so that the whole set has high waterproof performance, but also facilitate the maintenance of the components in the lower accommodating chamber 112.

[0038] A bottom side plate 115 is fixedly provided at the bottom of the lower accommodating chamber 112, and the plate heat exchanger 15, the lower pipe heater 20, and the compressor 18 are all fixedly provided on the bottom side plate 115 to ensure that the three are firmly fixed. In order to prevent the lower pipe heater 20 from contacting the bottom side plate 115, a heat insulation seat is fixedly provided at the bottom of the lower pipe heater 20, and the heat insulation seat is fixed to the bottom side plate 115 by means of bolts to avoid reducing the heat transfer of the lower pipe heater 20 to the mounting frame 11, and to provide stable support for the lower pipe heater 20. Of course, the plate heat exchanger 15 can also be fixed to the bottom side plate 115 by means of a heat insulation seat to avoid burns caused by excessive temperature of the mounting frame 11. In addition, the compressor 18 can be fixed to the bottom side plate 115 by means of a vibration damping seat to reduce the noise generated during the operation of the compressor 18.

[0039] The mounting frame 11 includes a front frame 116 and a rear frame 117 arranged in parallel along the second direction, a bearing plate 118 is fixedly arranged between the front frame 116 and the rear frame 117, and the bearing plate 118 is located between the front frame 116 and the rear frame 117, dividing the space between the front frame 116 and the rear frame 117 into two, forming an upper accommodating chamber 111 and a lower accommodating chamber 112, wherein the upper accommodating chamber 111 and the lower accommodating chamber 112 are respectively arranged on both sides of the bearing plate 118. In addition, the dry cooler 13, the condenser 14 and the fixing plate 119 can be fixed on the bearing plate 118, so that the bearing plate 118 provides support for the three. The load-bearing plate 118 is arranged near the middle of the mounting frame 11, ensuring that the center of gravity of the entire unit falls on the load-bearing plate 118. The load-bearing plate 118 is relatively thick, and is provided with a forklift hole 1181 penetrating along the second direction, so as to facilitate the forklift to carry the heavier chiller and avoid the chiller from tipping over due to unstable center of gravity during the transportation process. Specifically, the front frame 116 and the rear frame 117 are both rectangular frames.

[0040] In addition, reinforcing plates are provided on both sides of the bottom of the lower accommodating chamber 112, and the reinforcing plates are used to enhance the connection strength between the front frame 116 and the rear frame 117. The reinforcing plates are provided with structural holes penetrating along the third direction, so that a palm or a clamp can pass through the structural holes to lift the entire unit.

[0041] A fixing plate 119 is fixedly arranged in the upper accommodating chamber 111; the condensing fan 12 and the condenser 14 are respectively arranged on both sides of the fixing plate 119; the condensing fan 12 includes an upper fan 121 and a lower fan 122 which are distributed up and down along the first direction, and the upper fan 121 and the lower fan 122 are fixedly arranged on the fixing plate 119. The two fans are arranged in a vertically symmetrical manner to ensure uniform distribution of airflow and structural stability of the whole unit, which increases air volume output and reduces energy consumption. Moreover, the two fans do not interfere with each other, and can also improve the working efficiency of the chiller. The setting of the condensing fan 12 enables the whole unit to integrate natural cooling technology, and provides cooling capacity by utilizing the low temperature of the environment, so as to achieve higher energy utilization while ensuring cooling performance.

[0042] An exhaust valve 22 is fixedly arranged on one side of the fixing plate 119 away from the condenser 14. The exhaust valve 22 is connected to the top of the dry cooler 13 and is dedicated to serving the dry cooler 13. The exhaust valve 22 guides the gas to be exhausted from the highest point of the dry cooler 13 to the front of the fixing plate 119, which not only ensures that the dry cooler 13 has excellent exhaust performance, but also facilitates the front replacement and maintenance of the exhaust valve 22 without disassembling the fixing plate 119 and the condenser 14, making maintenance more convenient and efficient.

[0043] The chiller also includes a liquid inlet pipe 23 and a liquid outlet pipe 24 fixed at the bottom of the lower accommodating chamber 112, and the circulating pump 17 is fixed just above the liquid inlet pipe 23, effectively utilizing the bottom space of the lower accommodating chamber 112 to achieve a compact layout, which is conducive to reducing the occupied space.

[0044] As attached Figure 3 As shown, the chiller also includes a first branch pipe 25 and a second branch pipe 26 which are arranged in parallel between the liquid inlet pipe 23 and the liquid outlet pipe 24. The first branch pipe 25 is provided with a plate heat exchanger 15, and the second branch pipe 26 is provided with a dry cooler 13 and a control valve 27. When the control valve 27 is opened, the fluid in the liquid inlet pipe 23 is divided into two paths, one of which flows into the plate heat exchanger 15 through the first branch pipe 25, and the other flows into the dry cooler 13 through the second branch pipe 26. The chiller also includes a third branch pipe 28 whose two ends are respectively connected to the two ends of the plate heat exchanger 15. The third branch pipe 28 is provided with a condenser 14, a compressor 18 and an expansion valve 29. The condenser 14 is directly opposite to the condensing fan 12 and the dry cooler 13.

[0045] The gaseous refrigerant coming out of the plate heat exchanger 15 is compressed by the compressor 18 to become a high-temperature and high-pressure gas. The high-temperature and high-pressure gas enters the condenser 14 along the third branch pipe 28. Under the action of the condensing fan 12 and the dry cooler 13, the condenser 14 exchanges heat with the air in the external environment, and the gas is cooled and converted into a high-temperature and high-pressure liquid. The high-temperature and high-pressure liquid enters the plate heat exchanger 15 through the expansion valve 29. Under the action of the expansion valve 29, the pressure drops sharply to form a high-speed rotating steam vortex; in the plate heat exchanger 15, the steam interacts with the cooling water or air to cool the steam and turn it into a low-temperature and low-pressure gas. Then the low-temperature and low-pressure gas is compressed again by the compressor 18, and this cycle is repeated, continuously exchanging heat with the working medium in the chiller to achieve refrigeration.

[0046] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0047] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A chiller, characterized in that: The invention comprises a mounting frame (11), wherein the mounting frame (11) comprises an upper accommodating chamber (111) and a lower accommodating chamber (112) which are distributed vertically along a first direction; further comprising a condensing fan (12), a dry cooler (13) and a condenser (14) which are sequentially stacked in the upper accommodating chamber (111) along a second direction, and a plate heat exchanger (15), an expansion tank (16), a circulating pump (17) and a compressor (18) which are sequentially arranged side by side in the lower accommodating chamber (112) along a third direction; the first direction, the second direction and the third direction are mutually perpendicular in pairs.

2. The chiller according to claim 1, characterized in that: It also includes an upper pipeline heater (19) and a lower pipeline heater (20) distributed along the first direction on both sides of the expansion tank (16).

3. The chiller according to claim 2, characterized in that: It also includes an expansion water tank (21), wherein the expansion water tank (21) is located above the expansion tank (16); the expansion water tank (21) and the plate heat exchanger (15) are both distributed along the second direction.

4. The chiller according to claim 3, characterized in that: A left side plate (113) is fixedly provided on one side of the lower accommodating chamber (112), and one end of the expansion water tank (21) is fixedly provided on the left side plate (113); the upper pipe heater (19) is fixedly connected to a side of the expansion water tank (21) away from the left side plate (113).

5. The chiller according to claim 4, characterized in that: A back side plate (114) is fixedly arranged on the back of the lower accommodating chamber (112), and the expansion tank (16) and the circulating pump (17) are both fixedly arranged on the back side plate (114).

6. The water chiller according to claim 4, characterized in that: A bottom side plate (115) is fixedly arranged at the bottom of the lower accommodating chamber (112), and the plate heat exchanger (15), the lower pipe heater (20), and the compressor (18) are all fixedly arranged on the bottom side plate (115).

7. The water chiller according to any one of claims 1 to 6, characterized in that: The mounting frame (11) comprises a front frame (116) and a rear frame (117) arranged in parallel along the second direction; a bearing plate (118) is fixedly arranged between the front frame (116) and the rear frame (117); the upper accommodating cavity (111) and the lower accommodating cavity (112) are respectively arranged on two sides of the bearing plate (118); and the bearing plate (118) is provided with a forklift hole (1181).

8. The water chiller according to any one of claims 1 to 6, characterized in that: A fixing plate (119) is fixedly arranged in the upper accommodating cavity (111); the condensing fan (12) and the condenser (14) are respectively arranged on both sides of the fixing plate (119); the condensing fan (12) comprises an upper fan (121) and a lower fan (122) which are distributed up and down along the first direction, and the upper fan (121) and the lower fan (122) are both fixedly arranged on the fixing plate (119).

9. The water chiller according to claim 8, characterized in that: An exhaust valve (22) is fixedly provided on a side of the fixing plate (119) away from the condenser (14), and the exhaust valve (22) is connected to the top of the dry cooler (13).

10. The water chiller according to any one of claims 1 to 6, characterized in that: It also includes a liquid inlet pipe (23) and a liquid outlet pipe (24) fixedly arranged at the bottom of the lower accommodating chamber (112), and the circulating pump (17) is fixedly arranged directly above the liquid inlet pipe (23).

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