Ice cleaning machine with cold water recycling mechanism
By setting up a cold water recovery mechanism in the ice cleaning machine, and recycling and reusing the ice water in the ice storage cavity and the ice discharge mechanism, the reduction of ice storage volume and pollution caused by ice water accumulation is solved, the quality of ice cubes and water utilization rate is improved, and the health of users is ensured.
Patent Information
- Application Number
- CN202422162806.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The accumulation of ice water in existing ice cleaning machines is not cleaned in time, resulting in a decrease in ice storage and prone to bacterial growth, affecting the quality of ice and user health.
An ice cleaner with a cold water recovery mechanism is designed, including a cold water tank, a first and second return flow passages, and a water inlet flow passage, for recycling ice water in the ice storage chamber and the ice discharge mechanism, and reusing it to make ice, avoid accumulation, and improve ice storage capacity and ice quality.
Ice water is cleaned in time through a cold water recycling mechanism to maintain the ice storage capacity of the ice storage chamber, avoid ice pollution, improve the quality of ice, reduce water resource waste, and ensure user health.
Smart Images
Figure CN223126294U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ice-making drinking fountains, in particular to an ice purifier with a cold water recovery mechanism. Background Art
[0002] An ice purifier is an intelligent small household appliance with functions such as ice-making, water purification, and drinking. It first filters raw water to produce pure water, and then uses the pure water to make ice, realizing the integration of water purification, drinking, and ice-making, which is more convenient than a simple drinking fountain and ice maker in daily use.
[0003] In daily use, there are mostly ice cubes remaining in the ice purifier. If stored for a long time, the ice cubes will melt, forming ice water inside the ice purifier. If the ice water is not cleaned in time and accumulates inside the ice purifier, it will occupy a part of the space originally used for storing ice cubes, reducing the actual ice storage capacity of the ice purifier. Moreover, the accumulated ice water is prone to breed bacteria, causing the ice storage space and ice cubes of the ice purifier to be easily contaminated, not only affecting the quality of the ice cubes but also potentially affecting the health of users.
[0004] The present utility model is studied and proposed in view of the deficiencies of the existing technology. Summary of the Utility Model
[0005] In view of the problem that the ice water accumulation in the existing ice purifier is not cleaned in time, resulting in a reduction in the actual ice storage capacity of the ice purifier, and the accumulated ice water is prone to breed bacteria, affecting the quality of the ice cubes and the health of users, the present utility model proposes an ice purifier with a cold water recovery mechanism.
[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows:
[0007] An ice purifier with a cold water recovery mechanism, comprising a body, and the body includes:
[0008] An ice-making box, the ice-making box is connected with an ice-making mechanism and an ice discharging mechanism, and an ice storage cavity communicating between the ice-making mechanism and the ice discharging mechanism is further arranged in the ice-making box;
[0009] A cold water recovery mechanism, which includes a cold water tank, a first return flow channel arranged between the ice storage cavity and the cold water tank, a second return flow channel arranged between the ice discharging mechanism and the cold water tank, and a water inlet flow channel arranged between the cold water tank and the ice-making mechanism.
[0010] For the ice purifier with a cold water recovery mechanism as described above, the ice-making mechanism includes an ice-making box arranged in the ice-making box and an ice-making device arranged in the ice-making box. An ice-making cavity is arranged in the ice-making box, the ice-making cavity is formed by a depression downward from the top of the ice-making box, the ice-making device can extend into the ice-making cavity to make ice, and the water inlet flow channel communicates between the ice-making cavity and the cold water tank.
[0011] An ice purifier with a cold water recovery mechanism as described above, wherein the cold water tank is provided with a water outlet, the water outlet is connected to the ice-making chamber through a first pipeline, and the water inlet flow channel is arranged in the first pipeline.
[0012] An ice purifier with a cold water recovery mechanism as described above, wherein the cold water tank is placed below the ice-making refrigerator, the ice-making box is arranged near the top of the ice-making refrigerator, a water pump is arranged in the first pipeline, and the water pump is installed on one side of the cold water tank.
[0013] An ice purifier with a cold water recovery mechanism as described above, wherein the ice-making refrigerator is provided with a first return port communicated with the ice storage chamber, the cold water tank is provided with a first water inlet, the first return port is connected to the first water inlet through a second pipeline, and the first return flow channel is arranged in the second pipeline.
[0014] An ice purifier with a cold water recovery mechanism as described above, wherein the first return port is arranged at the bottom of the ice-making refrigerator, an installation pipe extending outward from the bottom of the ice-making refrigerator is further arranged at the first return port, the first return port penetrates through the installation pipe, and the installation pipe is used for connecting with the second pipeline.
[0015] An ice purifier with a cold water recovery mechanism as described above, wherein an ice outlet slideway, an ice outlet and a second return port are arranged in the ice outlet mechanism, the second return port is located in front of the ice outlet in the ice outlet slideway, the cold water tank is provided with a second water inlet, the second return port and the second water inlet are connected through a third pipeline, and the second return flow channel is arranged in the third pipeline.
[0016] An ice purifier with a cold water recovery mechanism as described above, wherein the first return flow channel, the second return flow channel and the water inlet flow channel are respectively connected with corresponding cold water tank connection ports in the cold water tank, and each cold water tank connection port is arranged on the same side in the cold water tank.
[0017] An ice purifier with a cold water recovery mechanism as described above, wherein a water level switch is arranged in the cold water tank.
[0018] An ice purifier with a cold water recovery mechanism as described above, wherein a disinfector is arranged in the cold water tank.
[0019] Compared with the prior art, the beneficial effects of the present utility model are:
[0020] The ice purifier of the present utility model includes a cold water recovery mechanism. The cold water tank is connected with a first return flow channel communicating with the ice storage cavity of the ice making mechanism, a second return flow channel communicating with the ice discharging mechanism, and a water inlet flow channel communicating with the ice making cavity of the ice making mechanism. The first return flow channel is used for allowing the ice water accumulated in the ice storage cavity to flow back to the cold water tank for secondary utilization. The second return flow channel is used for allowing the ice water accumulated in the ice discharging mechanism to flow back to the cold water tank for secondary utilization. The water in the cold water tank flows into the ice making mechanism through the water inlet flow channel for ice making. By recovering the cold water formed during the ice storage and ice discharging processes through the cold water recovery mechanism, the water accumulated in the ice storage cavity and the ice discharging mechanism can be cleaned in time, thereby maintaining the ice storage capacity in the ice storage cavity, preventing the ice cubes from being contaminated by bacteria, microorganisms, etc., which is beneficial to improving the quality of the ice cubes and ensuring the health of users. In addition, by setting the cold water recovery mechanism to recover and reuse the ice water in the ice storage cavity and the ice discharging mechanism, the utilization rate of water can be improved and water resource waste can be reduced.
[0021] The following will further illustrate the present utility model in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 is the internal structure diagram of the ice purifier body of the present utility model;
[0023] Figure 2 is the exploded view of the ice making mechanism, ice discharging mechanism and ice making box of the present utility model;
[0024] Figure 3 is the water circuit schematic diagram of the cold water tank of the present utility model with the ice making mechanism, ice making box and ice discharging mechanism;
[0025] Figure 4 is the top view of the ice making mechanism, ice discharging mechanism and ice making box of the present utility model;
[0026] Figure 5 is Figure 4 the A - A cross-sectional view in
[0027] Figure 6 is Figure 4 the B - B cross-sectional view in
[0028] Figure 7 is the three-dimensional view of the cold water tank of the present utility model;
[0029] Figure 8 is Figure 7 the C - C cross-sectional view in DETAILED DESCRIPTION OF THE EMBODIMENTS
[0030] The following will describe the embodiments of the present utility model in detail with reference to the accompanying drawings.
[0031] As Figure 1As shown in FIG8 , the utility model provides an ice purifier with a cold water recovery mechanism, comprising a body 1, wherein the body 1 comprises a refrigerator 11, an ice-making mechanism 12, an ice-dispensing mechanism 13, and a cold water recovery mechanism 14, wherein the refrigerator 11 is detachably installed in the body 1, and the ice-making mechanism 12 and the ice-dispensing mechanism 13 are respectively connected to the refrigerator 11, and an ice storage chamber 111 connected to the ice-making mechanism 12 and the ice-dispensing mechanism 13 is also provided in the refrigerator 11; in this embodiment, the ice purifier also comprises a pure water making mechanism, and a pure water flow channel for conveying pure water can be provided between the pure water making mechanism and the ice-making mechanism 12; after the pure water making mechanism makes pure water, the pure water flows into the ice-making mechanism 12 through the pure water flow channel, and the pure water is made into ice cubes by the ice-making mechanism 12, and then the pure water is made into ice cubes by the ice-making mechanism 12. The ice mechanism 12 transports the ice cubes to the ice storage chamber 111, and the ice discharging mechanism 13 finally outputs the ice cubes for users to use; wherein, the ice storage chamber 111 can store ice cubes, but in daily use, ice cubes are easily accumulated inside the ice purifier. As time goes by, the ice cubes melt to form ice water and accumulate in the ice storage chamber 111. If the ice water in the ice storage chamber 111 is not cleaned in time, the ice storage space in the ice storage chamber 111 will be reduced, thereby reducing the ice storage capacity of the ice purifier. In addition, ice water is easy to breed bacteria, making the ice cubes immersed in the ice water easily contaminated, thereby affecting the quality of the ice cubes and even affecting the health of users. Therefore, a cold water recovery mechanism 14 is provided in the ice purifier of the utility model, and the cold water recovery mechanism 14 is mainly used to recover cold water formed by the melting of ice cubes or other water suitable for ice making.
[0032] Specifically, Figure 3As shown, the cold water recovery mechanism 14 includes a cold water tank 141, a first return flow channel 142 provided between the ice storage chamber 111 and the cold water tank 141, a second return flow channel 143 provided between the ice discharging mechanism 13 and the cold water tank 141, and a water inlet flow channel 144 provided between the cold water tank 141 and the ice making mechanism 12. In this embodiment, the cold water tank 141 can hold water suitable for making ice. The cold water tank 141 is connected to the first return flow channel 142, the second return flow channel 143, and the water inlet flow channel 144. Among them, the first return flow channel 142 is used to supply the ice water accumulated in the ice storage chamber 111 to flow back into the cold water tank 141 for secondary use. The second return flow channel 143 is used to supply the ice water accumulated in the ice discharging mechanism 13 to flow back into the cold water tank 141 for secondary use. The water in the cold water tank 141 flows into the ice making mechanism 12 through the water inlet flow channel 144 for ice making. By recovering the cold water formed during the ice storage and ice discharging processes through the cold water recovery mechanism 14, the ice water accumulated in the ice storage chamber 111 and the ice discharging mechanism 13 can be cleaned in time, so as to maintain the ice storage capacity in the ice storage chamber 111, avoid the ice being contaminated by bacteria, microorganisms, etc., which is beneficial to improving the quality of the ice and ensuring the health of users. In addition, by setting the cold water recovery mechanism 14 to recover and reuse the ice water in the ice storage chamber 111 and the ice discharging mechanism 13, the utilization rate of water can be improved and water resource waste can be reduced.
[0033] It should be noted that, in this embodiment, as Figure 1 , Figure 5 and Figure 6 shown, the ice making mechanism 12 can adopt a refrigeration system formed by combining common refrigeration modules such as a compressor 181, an evaporator, and a condenser 182; the ice discharging mechanism 13 can adopt a common ice discharging slideway 131 communicating with the ice storage chamber 111. Since the ice melts faster due to the friction with the ice discharging slideway 131 when the ice is discharged, it is easy for ice water to remain in the ice discharging slideway 131. Therefore, the second return flow channel 143 is provided between the ice discharging mechanism 13 and the cold water tank 141. When the ice in the ice discharging slideway 131 passes through the second return flow channel 143, the excess ice water can directly flow into the second return flow channel 143 and flow back into the cold water tank 141 along the second return flow channel 143, which is beneficial to preventing cold water from flowing out at the ice discharging mechanism 13 and avoiding too much ice water from flowing out during the ice discharging process, thereby improving the user experience.
[0034] In some embodiments, as Figure 2 and Figure 5As shown, the ice making mechanism 12 includes an ice making box 121 disposed in the ice making refrigerator 11 and an ice maker 122 disposed in the ice making box 121. An ice making cavity 123 is provided in the ice making box 121, and the ice making cavity 123 is formed by a downward depression at the top of the ice making box 121. The ice maker 122 can extend into the ice making cavity 123 to make ice. The water inlet flow channel 144 communicates between the ice making cavity 123 and the cold water tank 141. In this embodiment, the ice making cavity 123 can accommodate the water to be made into ice. The ice maker 122 can be understood as an evaporator connected to the compressor 181. The evaporator is connected with a plurality of ice making heads 1221 extending downward. Each ice making head 1221 extends into the ice making cavity 123 to make water into ice. Optionally, an opening 110 is provided in the ice making refrigerator 11 above the ice making box 121. The opening 110 can be used as the end of the water inlet flow channel 144. A short pipe can be connected to the opening 110, and the short pipe can extend into the ice making cavity 123 and is used to divert water into the ice making cavity 123.
[0035] Furthermore, as Figure 1 , Figure 3 and Figure 5 shown, the cold water tank 141 is provided with a water outlet 1411. The water outlet 1411 is connected to the ice making cavity 123 through a first pipe 15. The water inlet flow channel 144 is provided in the first pipe 15. In this embodiment, the first pipe 15 can be a conventional water pipe, and the first pipe 15 forms the water inlet flow channel 144. By using a pipeline connection between the cold water tank 141 and the ice making cavity 123, it is beneficial to improve the flexible arrangement of the cold water tank 141, the ice making refrigerator 11 and the ice making box 121 in the ice purification machine and facilitate equipment installation.
[0036] Furthermore, as Figure 1 shown, the cold water tank 141 is placed below the ice making refrigerator 11. The ice making box 121 is disposed near the top of the ice making refrigerator 11. A water pump 151 is provided in the first pipe 15, and the water pump 151 is installed on one side of the cold water tank 141. In this embodiment, the ice making box 121 is installed in the ice making refrigerator 11 and above the ice storage cavity 111, so that the ice making mechanism 12 can transport ice cubes into the ice storage cavity 111. Since the cold water tank 141 is installed below the ice making refrigerator 11, there is a height difference between the cold water tank 141 and the ice making cavity 123, so that the water inlet flow channel 144 draws water from bottom to top. Therefore, a water pump 151 is installed in the first pipe 15, and the water pump 151 pumps the water in the cold water tank 141 from bottom to top into the ice making cavity 123 to improve the water guiding efficiency between the cold water tank 141 and the ice making mechanism 12, thereby ensuring the ice making efficiency of the ice purification machine.
[0037] In some embodiments, such asFigure 1 , Figure 3 and Figure 5 As shown in Figure 1 , Figure 3 and Figure 5 , the ice maker 11 is provided with a first return port 112 communicating with the ice storage chamber 111. The cold water tank 141 is provided with a first water inlet 1412. The first return port 112 is connected to the first water inlet 1412 through a second pipeline 16, and the first return flow channel 142 is arranged in the second pipeline 16. Further, the first return port 112 is arranged at the bottom of the ice maker 11, and an installation pipe 113 extending outward from the bottom of the ice maker 11 is further arranged at the first return port 112. The first return port 112 penetrates through the installation pipe 113, and the installation pipe 113 is used for connecting with the second pipeline 16. In this embodiment, by arranging the first return port 112 at the bottom of the ice maker 11, cold water can directly flow into the first return flow channel 142 through the first return port 112, and the cold water flows naturally under the action of gravity, which is beneficial to reducing the water supply energy consumption of the ice cleaner. The first return port 112 longitudinally penetrates through the installation pipe 113, and one end of the second pipeline 16 can be directly connected to the installation pipe 113, which is convenient for pipeline installation; in addition, the second pipeline 16 can adopt a conventional water pipe, and the second pipeline 16 forms the first return flow channel 142. By adopting pipeline connection between the cold water tank 141 and the ice storage chamber 111, it is beneficial to improve the flexible arrangement of the cold water tank 141 and the ice maker 11 in the ice cleaner and facilitate equipment installation.
[0038] In some embodiments, such as Figure 3 and Figure 6As shown, the ice discharging mechanism 13 is provided with an ice discharging chute 131, an ice discharging port 132 and a second return port 133 arranged in the ice discharging chute 131. The second return port 133 is located on the front side of the ice discharging port 132 in the ice discharging chute 131. The cold water tank 141 is provided with a second water inlet 1413. The second return port 133 and the second water inlet 1413 are connected by a third pipeline 17, and the second return flow channel 143 is arranged in the third pipeline 17. In this embodiment, the ice discharging mechanism 13 can be provided with an ice discharging chute 131 for discharging ice cubes. The ice discharging port 132 is arranged at the end of the ice discharging chute 131. The head end of the ice discharging chute 131 passes through the ice making box 11 and communicates with the ice storage cavity 111. The second return port 133 is arranged between the ice discharging port 132 and the head end of the ice discharging chute 131 and is close to the ice discharging port 132. By arranging the second return port 133 on one side of the ice discharging port 132 and connecting the second return port 133 and the second water inlet 1413 through a pipeline, it is beneficial to the flexible installation of the ice discharging mechanism 13 and the cold water tank 141. Optionally, a water pipe connection part 1331 can be arranged at the second return port 133, and this water pipe connection part is similar to the installation pipe 113 at the first return port 112. It should be noted that a ice delivering mechanism 19 can also be arranged between the ice discharging chute 131 and the ice storage cavity 111. The ice delivering mechanism 19 is used to deliver the ice cubes in the ice storage cavity 111 to the ice discharging chute 131 for export for users to use. In some embodiments, the ice delivering mechanism 19 can use an electric ice pusher to deliver the ice cubes from the bottom of the ice storage cavity 111 upward along a vertically ascending or helically ascending path to the head end of the ice discharging chute 131.
[0039] Preferably, in some embodiments, such as Figure 1 、 Figure 5 and Figure 6 As shown, the first return flow channel 142, the second return flow channel 143 and the water inlet flow channel 144 are respectively connected with corresponding cold water tank connection ports in the cold water tank 141, and each of the cold water tank connection ports is arranged on the same side in the cold water tank 141. In this embodiment, the cold water tank connection port of the first return flow channel 142 can be understood as the above-mentioned first water inlet 1412, the cold water tank connection port of the second return flow channel 143 can be understood as the above-mentioned second water inlet 1413, and the cold water tank connection port of the water inlet flow channel 144 can be understood as the above-mentioned water outlet 1411. Each of the cold water tank connection ports can be arranged on any side wall of the cold water tank 141. By arranging each of the cold water tank connection ports on the same side in the cold water tank 141, it is convenient for pipeline connection and improves the installation efficiency of the ice purifier. It should be noted that Figure 1 、 Figure 5 and Figure 6The distribution of the first water inlet 1412, the second water inlet 1413, and the water outlet 1411 in [it] is the distribution in one of the embodiments. The present invention does not specifically limit the distribution of the above-mentioned first water inlet 1412, second water inlet 1413, and water outlet 1411.
[0040] Preferably, as Figure 8 shown, a water level switch 145 is provided in the cold water tank 141. In this embodiment, the water level switch 145 can be electrically connected to the water pump 151 and the ice making mechanism 12 through the control system in the ice making machine. The water level situation in the cold water tank 141 is detected by the water level switch 145 and a signal is sent to the control system, so as to drive the water pump 151 and the ice making mechanism 12. For example, when the water level switch 145 detects that the water level in the cold water tank 141 is low, the water level switch 145 sends a signal to the control system to drive the water pump 151 to stop pumping water or drive the ice making mechanism 12 to stop making ice; when the water level switch 145 detects that the water level in the cold water tank 141 is high, the water level switch 145 sends a signal to the control system to drive the water pump 151 to start pumping water and drive the ice making mechanism 12 to start making ice; by arranging the water level switch 145 in the cold water tank 141, it is beneficial to detect the water level situation in the cold water tank 141, timely adjust and control the operation of the water pump 151 and the ice making mechanism 12, and ensure the operation safety of the equipment. Optionally, the water level switch 145 can be a capacitive water level switch, an electrode type water level switch, a float type water level switch, etc.
[0041] Preferably, as Figure 8 shown, a disinfector 146 is provided in the cold water tank 141. The disinfector 146 is used to disinfect the water in the cold water tank 141 to prevent bacteria from growing due to the long storage time of the water in the cold water tank 141, improve the ice quality by improving the water quality, and ensure the health of users. Optionally, the disinfector 146 can be a UV disinfection lamp, an ozone generator, etc.
[0042] The above only uses embodiments to further illustrate the technical content of the present invention to make it easier for readers to understand, but it does not mean that the implementation modes of the present invention are limited to this. Any technical extension or re-creation based on the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.
Claims
1. An ice purifier with a cold water recovery mechanism, comprising a body (1), characterized in that, The body (1) includes: A refrigerator (11) connected with an ice making mechanism (12) and an ice discharging mechanism (13), and an ice storage cavity (111) communicating between the ice making mechanism (12) and the ice discharging mechanism (13) is further arranged in the refrigerator (11); A cold water recycling mechanism (14), which includes a cold water tank (141), a first return flow channel (142) arranged between the ice storage cavity (111) and the cold water tank (141), a second return flow channel (143) arranged between the ice discharging mechanism (13) and the cold water tank (141), and a water inlet flow channel (144) arranged between the cold water tank (141) and the ice making mechanism (12).
2. The ice purifier with a cold water recovery mechanism according to claim 1, characterized in that, The ice making mechanism (12) includes an ice making box (121) arranged in the refrigerator (11) and an ice maker (122) arranged in the ice making box (121). An ice making cavity (123) is arranged in the ice making box (121), and the ice making cavity (123) is formed by a downward depression at the top of the ice making box (121). The ice maker (122) can extend into the ice making cavity (123) to make ice, and the water inlet flow channel (144) communicates between the ice making cavity (123) and the cold water tank (141).
3. The ice purifier with a cold water recovery mechanism according to claim 2, characterized in that, The cold water tank (141) is provided with a water outlet (1411), and the water outlet (1411) is connected with the ice making cavity (123) through a first pipeline (15), and the water inlet flow channel (144) is arranged in the first pipeline (15).
4. The ice purifier with a cold water recovery mechanism according to claim 3, characterized in that, The cold water tank (141) is placed below the refrigerator (11), the ice making box (121) is arranged near the top of the refrigerator (11), a water pump (151) is arranged in the first pipeline (15), and the water pump (151) is installed on one side of the cold water tank (141).
5. The ice purifier with a cold water recovery mechanism according to claim 1, characterized in that, The refrigerator (11) is provided with a first return port (112) communicating with the ice storage cavity (111), the cold water tank (141) is provided with a first water inlet (1412), the first return port (112) is connected with the first water inlet (1412) through a second pipeline (16), and the first return flow channel (142) is arranged in the second pipeline (16).
6. The ice purifier with a cold water recovery mechanism according to claim 5, characterized in that, The first return port (112) is arranged at the bottom of the refrigerator (11), and an installation pipe (113) extending outward from the bottom of the refrigerator (11) is further arranged at the first return port (112). The first return port (112) penetrates through the installation pipe (113), and the installation pipe (113) is used for connecting with the second pipeline (16).
7. The ice purifier with a cold water recovery mechanism according to claim 1, characterized in that, The ice discharging mechanism (13) is provided with an ice discharging chute, an ice discharging port (132) and a second return port (133) arranged in the ice discharging chute. The second return port (133) is located on the front side of the ice discharging port (132) in the ice discharging chute. The cold water tank (141) is provided with a second water inlet (1413). The second return port (133) and the second water inlet (1413) are connected through a third pipeline (17). The second return flow channel (143) is arranged in the third pipeline (17).
8. A ice purifier with a cold water recovery mechanism according to any one of claims 1 - 7, characterized in that, The first return flow channel (142), the second return flow channel (143) and the water inlet flow channel (144) are respectively connected with corresponding cold water tank (141) connection ports in the cold water tank (141). Each of the cold water tank (141) connection ports is arranged on the same side in the cold water tank (141).
9. A ice purifier with a cold water recovery mechanism according to any one of claims 1 - 7, characterized in that, A water level switch (145) is arranged in the cold water tank (141).
10. A kind of ice purifier with a cold water recovery mechanism according to any one of claims 1 - 7, characterized in that, A sterilizer (146) is arranged in the cold water tank (141).