Water collecting and draining device for evaporator

Abstract

The utility model relates to a water collecting and draining device for an evaporator, which comprises a water collecting and draining module, the water collecting and draining module comprises a pipeline with two closed ends, the bottom wall of the pipeline is provided with a first draining hole, the top wall of the pipeline is provided with a plurality of first water collecting ports at intervals, and the side wall of the pipeline is provided with a first connecting port; the first water collecting module comprises a first water collecting pipeline with one closed end, the open end of the first water collecting pipeline is connected with the first connecting port in an inserted mode, and a plurality of second water collecting ports are formed in the top wall of the first water collecting pipeline. According to the utility model, different installation environments and requirements can be adapted, and the layout of the number of the modules can be flexibly adjusted according to different use scenes so as to meet specific space and function requirements; due to the detachable design, the water collecting and draining device is more convenient to install and maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to evaporator technical field especially is related to a water collecting and draining device for evaporator. BACKGROUND

[0002] The evaporator of heat pump unit can produce a large amount of condensed water when defrosting, if these condensed water cannot be drained in time, will be accumulated in the bottom of evaporator, in low temperature environment can freeze, lead to heat exchange pipe freeze, thereby make heat pump unit invalid.

[0003] In order to avoid this situation, the evaporator in the prior art is usually placed on a special drainage structure. This drainage structure not only supports the evaporator, but also effectively drains the condensed water. In order to prevent icing at the bottom, some heat pump units are equipped with heating belts on the drainage structure to heat the drainage pipeline to prevent the condensed water from freezing.

[0004] However, the heating wire inside the heating belt can hinder the flow of condensed water, so that the system needs to defrost frequently, which not only affects the efficiency of the heat pump, but also reduces the user experience. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims at overcoming the defects or deficiencies of the prior art, and provides a water collecting and draining device for evaporator.

[0006] A water collecting and draining device for evaporator, comprising:

[0007] A water collecting and draining module, comprising a pipe closed at both ends, a first drainage hole is opened on the bottom wall of the pipe, a plurality of first water collecting openings are arranged on the top wall of the pipe at intervals, and a first connecting opening is opened on the side wall of the pipe.

[0008] A first water collecting module, comprising a first water collecting pipe closed at one end, the open end of the first water collecting pipe is inserted into the first connecting opening, and a plurality of second water collecting openings are arranged on the top wall of the first water collecting pipe.

[0009] Compared with the prior art, the water collecting and draining device for evaporator can adapt to different installation environments and requirements, and can flexibly adjust the number and layout of the water collecting module according to different use scenarios to meet the specific space and functional requirements. The detachable design makes the installation and maintenance of the water collecting tank more convenient.

[0010] In an embodiment, the first drainage hole is arranged at the maximum height from the bottom wall to the top wall of the pipe; and the height from the bottom wall to the top wall of the first water collecting pipe continuously increases from the closed end to the open end.

[0011] In an embodiment, the water collecting and draining module further comprises a first heating unit fixedly arranged below the bottom wall thereof, and the first water collecting module further comprises a second heating unit fixedly arranged below the bottom wall thereof, wherein the first heating unit and the second heating unit are respectively provided with a separate power supply lead.

[0012] In an embodiment, the first heating unit comprises an electric heating film and a heat preservation sponge fixedly arranged below the electric heating film, and the second heating unit has the same structure as the first heating unit.

[0013] In an embodiment, the water collecting and draining module further comprises a plurality of drainage plates arranged on the top wall thereof on both sides of the plurality of first water collecting openings, and the first water collecting module further comprises a plurality of drainage plates arranged on the top wall thereof on both sides of the plurality of second water collecting openings.

[0014] In an embodiment, the water collecting and draining module further comprises a plurality of drainage plates arranged on the top wall thereof on both sides of the plurality of first water collecting openings, and the first water collecting module further comprises a plurality of drainage plates arranged on the top wall thereof on both sides of the plurality of second water collecting openings.

[0015] In an embodiment, a sealing ring is arranged along the opening edge of the first connecting opening.

[0016] In an embodiment, the water collecting and draining module further comprises a first mounting unit, and the pipeline is fixedly arranged in the first mounting unit, which comprises a first long side plate and a second long side plate arranged in parallel to each other, the first long side plate is provided with a first connecting groove connected with the first water collecting module, the second long side plate is provided with a second draining hole, and the first draining hole and the second draining hole are connected by the pipeline.

[0017] The first water collecting module further comprises a second mounting unit, and the first water collecting pipeline is fixedly arranged in the second mounting unit, which comprises a third long side plate and a fourth long side plate arranged in parallel to each other; the third long side plate and the fourth long side plate are respectively provided with a mounting edge on one side close to the opening end of the first water collecting pipeline, and the mounting edges are fixedly connected with the first mounting unit.

[0018] In an embodiment, the water collecting and draining module further comprises a second water collecting module and a third water collecting module, and the side wall of the water collecting and draining module is further provided with a second connecting opening.

[0019] The second water collecting module comprises a second water collecting pipeline with one end closed, the opening end of the second water collecting pipeline is inserted into the second connecting opening, a plurality of third water collecting openings are arranged on the top wall of the second water collecting pipeline, and a third connecting opening is arranged on the side wall of the second water collecting pipeline.

[0020] A third water collecting module includes a third water collecting pipe with one closed end, the open end of the third water collecting pipe is plugged into the third connecting port, and a plurality of fourth water collecting ports are arranged on the top wall of the third water collecting pipe.

[0021] In an embodiment, the height of the bottom wall to the top wall of the second water collecting pipe is continuously increased from the closed end to the open end; and the height of the bottom wall to the top wall of the third water collecting pipe is continuously increased from the closed end to the open end.

[0022] For better understanding and implementation, the utility model is described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the overall structure schematic view of the embodiment of the utility model;

[0024] Figure 2 It is the water collecting and draining module structure schematic view of the embodiment of the utility model;

[0025] Figure 3 It is the radial section structure side view of the water collecting and draining module of the embodiment of the utility model;

[0026] Figure 4 It is the radial section structure schematic view of the water collecting and draining module of the embodiment of the utility model;

[0027] Figure 5 It is the axial section structure schematic view of the water collecting and draining module of the embodiment of the utility model;

[0028] Figure 6 It is the first water collecting module structure schematic view of the embodiment of the utility model;

[0029] Figure 7 It is the second heating unit structure schematic view of the embodiment of the utility model;

[0030] Figure 8 It is the second water collecting module structure schematic view of the embodiment of the utility model;

[0031] Figure 9 It is the third heating unit structure schematic view of the embodiment of the utility model;

[0032] Figure 10 It is the axial section structure schematic view of the second water collecting module of the embodiment of the utility model;

[0033] Figure 11 It is the third water collecting module structure schematic view of the embodiment of the utility model;

[0034] Figure 12 It is the fourth heating unit structure schematic view of the embodiment of the utility model. DETAILED DESCRIPTION

[0035] The scheme of the utility model is explained in detail below in combination with the drawings.

[0036] As Figure 2 shown, the water collecting and draining device for the evaporator comprises a bottom disc 100 and a water receiving device 200 fixedly arranged on the bottom disc 100.

[0037] The bottom disc 100 is used for supporting the water receiving device 200.

[0038] The water receiving device 200 comprises a water collecting and draining module 210, a first water collecting module 220, a second water collecting module 230 and a third water collecting module 240 connected through a detachable structure.

[0039] The water collecting and draining module 210 comprises a first mounting unit 211, a first drainage unit 212 fixedly connected with the first mounting unit 211 and a water collecting and draining module 213 fixedly connected with the first drainage unit 212.

[0040] The first mounting unit 211 is fixedly connected with the bottom disc 100 through a detachable structure and comprises first and second long side plates 2111 and 2112 arranged in parallel, first and second end plates 2113 and 2114 fixedly arranged between the first and second long side plates 2111 and 2112, and a hollow cavity formed by the first and second long side plates 2111 and 2112 and the first and second end plates 2113 and 2114; the first long side plate 2111 is provided with a first connecting groove 2111A connected with the first water collecting module 220 and a first connecting groove 2111B connected with the second water collecting module 230; and the second long side plate 2112 is provided with a second draining hole 2112A.

[0041] Specifically, the first long side plate 2111 is provided with a first mounting edge 2111C on the outer side, and the first mounting edge 2111C is fixedly arranged on the bottom disc 100 through a detachable structure, so as to realize the fixed connection of the first mounting unit 211 with the bottom disc 100.

[0042] The first drainage unit 212 comprises a first drainage plate 2121 fixedly connected with the first long side plate 2111 at a certain angle and a second drainage plate 2122 fixedly connected with the second long side plate 2112 at a certain angle; specifically, the included angle between the first and second drainage plates 2121 and 2122 and the inner sides of the first and second long side plates 2111 and 2112 is an acute angle.

[0043] The water collecting and draining module 213 is a hollow pipe arranged in the first mounting unit 211, which specifically comprises a first side plate 2131 and a second side plate 2132 arranged in parallel and oppositely, a first top plate 2133 and a first bottom plate 2134 fixedly connected with the first side plate 2131 and the second side plate 2132 and arranged in parallel and oppositely;

[0044] The first side plate 2131 is fixedly connected with the first drainage plate 2121, and the second side plate 2132 is fixedly connected with the second drainage plate 2122; the first side plate 2131 is provided with a first connecting port 2131A connected with the first water collecting module 220 and a second connecting port 2131B connected with the second water collecting module 230, wherein the first connecting port 2131A is arranged at a position opposite to the first connecting groove 2111A, and the second connecting port 2131B is arranged at a position opposite to the first connecting groove 2111B; a plurality of first water collecting ports 2133A are arranged on the first top plate 2133 at intervals; the height of the first bottom plate 2134 to the first top plate 2133 gradually increases from both ends of the hollow pipe to the middle, and at the position with the maximum height, the first bottom plate 2134 is provided with a first drainage hole 2134A.

[0045] Specifically, the pipeline 2135 for connecting the second drainage hole 2112A and the first drainage hole 2134A is further included.

[0046] In order to make the evaporator not contact the water receiving device 200 as much as possible, a plurality of first rubber pads 214 fixedly arranged on the first top plate 2133 are further included.

[0047] In order to prevent the water receiving tray from icing in an extremely low environment, the first heating unit 215 is further included, which comprises a first electric heating heating film 2151 fixedly arranged under the first bottom plate 2134 and a first heat preservation sponge 2152 fixedly arranged under the first electric heating heating film 2151.

[0048] In order to reinforce the first heating unit 215, a plurality of first support plates 2153 fixedly connected with the first long side plate 2111 and the second long side plate 2112 and arranged horizontally below the first heat preservation sponge 2152 are further included.

[0049] In order to reduce the heat loss and absorption of the electric heating heating film and absorb and disperse the impact force of the water flow, a first sponge layer (not shown in the figure) fixedly arranged between the first support plate 2153 and the first heat preservation sponge 2152 is further included.

[0050] The first water collecting module 220 comprises a second mounting unit 221, a second drainage unit 222 fixedly connected with the second mounting unit 221, and a first water collecting pipe 223 fixedly connected with the second drainage unit 222;

[0051] The second mounting unit 221 is fixedly connected with the bottom plate 100 through a detachable structure, and includes a third long side plate 2211 and a fourth long side plate 2212 arranged in parallel, and a third end plate 2213 fixedly arranged between the third long side plate 2211 and the fourth long side plate 2212;

[0052] Specifically, the long side outer side of the third long side plate 2211 is provided with a second mounting edge 2211A, which is fixedly arranged on the bottom plate 100 through a detachable structure, so as to realize the fixed connection between the second mounting unit 221 and the bottom plate 100.

[0053] Specifically, the third long side plate 2211 and the fourth long side plate 2212 are respectively provided with a third mounting edge 2214 on the side away from the third end plate 2213, which is fixedly arranged on the first mounting unit 211 through a detachable structure, so as to realize the fixed connection between the second mounting unit 221 and the first mounting unit 211.

[0054] The second drainage unit 222 includes a third drainage plate 2221 fixedly connected with the third long side plate 2211 at a certain angle, and a fourth drainage plate 2222 fixedly connected with the fourth long side plate 2212 at a certain angle. Specifically, the included angle between the third drainage plate 2221 and the fourth drainage plate 2222 and the inner side of the third long side plate 2211 and the fourth long side plate 2212 respectively is an acute angle.

[0055] The first water collecting pipeline 223 is a hollow pipeline arranged in the second mounting unit 221. One end of the hollow pipeline is fixedly connected with the third end plate 2213, and the other end extends to the outside of the second mounting unit 221 by a certain length. The extension part is directly connected with the first connecting port 2131A, so as to realize the through connection between the water collecting and draining module 213 and the first water collecting pipeline 223.

[0056] Specifically, the third side plate 2231 and the fourth side plate 2232 are arranged in parallel, and the second top plate 2233 and the second bottom plate 2234 are fixedly connected with the third side plate 2231 and the fourth side plate 2232 perpendicularly and arranged in parallel. The third side plate 2231 is fixedly connected with the third drainage plate 2221, and the fourth side plate 2232 is fixedly connected with the fourth drainage plate 2222. A plurality of second water collecting ports 2233A are arranged on the second top plate 2233 at intervals. In order to make the defrosting water collected by the first water collecting pipeline 223 flow into the water collecting and draining module 213, the height between the second bottom plate 2234 and the second top plate 2233 increases from the side close to the third end plate 2213 to the side close to the first water collecting pipeline 223.

[0057] In order to make the evaporator not contact the water receiving device 200 as much as possible, a plurality of second rubber pads 224 are fixedly arranged on the second top plate 2233.

[0058] In order to prevent the occurrence of water tank icing in extremely low environment, a second heating unit 225 is further included, which comprises a second electric heating film 2251 fixedly arranged under a second bottom plate 2234, and a second heat preservation sponge 2252 fixedly arranged under the second electric heating film 2251.

[0059] In order to reinforce the second heating unit 225, a plurality of second support plates 2253 are further included, which are fixedly connected with the third long side plate 2211 and the fourth long side plate 2212, and horizontally arranged below the second heat preservation sponge 2252.

[0060] In order to reduce the heat loss and absorption of the electric heating film and absorb and disperse the impact force of water flow, a second sponge layer (not shown in the figure) is further included, which is fixedly arranged between the second support plate 2253 and the second heat preservation sponge 2252.

[0061] The second water collecting module 230 is fixedly connected with the water collecting and draining module 210 and parallel to the first water collecting module 220, and specifically comprises a third mounting unit 231, a third drainage unit 232 fixedly connected with the third mounting unit 231, and a second water collecting pipeline 233 fixedly connected with the third drainage unit 232.

[0062] The third mounting unit 231 is fixedly connected with the bottom plate 100 through a detachable structure, and specifically comprises a fifth long side plate 2311 and a sixth long side plate 2312 arranged in parallel, and a fourth end plate 2313 fixedly arranged between the fifth long side plate 2311 and the sixth long side plate 2312.

[0063] Specifically, the fifth long side plate 2311 is provided with a fourth mounting edge 2311A on the outer side of the long side, which is fixedly arranged on the bottom plate 100 through a detachable structure, so as to realize the fixed connection between the third mounting unit 231 and the bottom plate 100.

[0064] Specifically, the fifth long side plate 2311 and the sixth long side plate 2312 are provided with a fifth mounting edge 2314 on the side away from the fourth end plate 2313, which is fixedly arranged on the first mounting unit 211 through a detachable structure, so as to realize the fixed connection between the third mounting unit 231 and the first mounting unit 211; the fifth long side plate 2311 is provided with a third connecting groove 2311B connected with the third water collecting module 240.

[0065] The third drainage unit 232 comprises a fifth drainage plate 2321 fixedly connected with the fifth long side plate 2311 at an angle and a sixth drainage plate 2322 fixedly connected with the sixth long side plate 2312 at an angle, and specifically, the fifth drainage plate 2321 and the sixth drainage plate 2322 are connected with the inner sides of the fifth long side plate 2311 and the sixth long side plate 2312 at an acute angle.

[0066] The second water collecting pipe 233 is a hollow pipe arranged in the third mounting unit 231, one end of the hollow pipe is fixedly connected with the fourth end plate 2313, and the other end extends to outside of the third mounting unit 231 by a certain length, the extending part is directly connected with the second connecting port 2131B, so as to realize the through connection between the water collecting and draining module 213 and the second water collecting pipe 233.

[0067] Specifically, the second water collecting pipe 233 comprises a fifth side plate 2331 and a sixth side plate 2332 arranged in parallel and opposite to each other, a third top plate 2333 and a third bottom plate 2334 fixedly connected with the fifth side plate 2331 and the sixth side plate 2332 perpendicularly and arranged in parallel and opposite to each other; the fifth side plate 2331 is fixedly connected with the fifth drainage plate 2321, and the sixth side plate 2332 is fixedly connected with the sixth drainage plate 2322; the fifth side plate 2331 is provided with a third connecting port 2331A close to the fourth end plate 2313; a plurality of third water collecting ports 2333A are arranged on the third top plate 2333 at intervals; in order to make the defrosting water collected by the second water collecting pipe 233 flow into the water collecting and draining module 213, the height between the third bottom plate 2334 and the third top plate 2333 increases from the side close to the fourth end plate 2313 to the side close to the water collecting and draining module 213.

[0068] In order to make the evaporator not contact the water receiving device 200 as much as possible, a third rubber pad 234 fixedly arranged on the third top plate 2333 is further included.

[0069] In order to prevent the water receiving tray from icing in an extremely low environment, a third heating unit 235 is further included, which comprises a third electric heating film 2351 fixedly arranged under the third bottom plate 2334 and a third thermal insulation sponge 2352 fixedly arranged under the third electric heating film 2351.

[0070] In order to reinforce the third heating unit 235, a plurality of third supporting plates 2353 fixedly connected with the fifth long side plate 2311 and the sixth long side plate 2312 perpendicularly and arranged horizontally below the third thermal insulation sponge 2352 are further included.

[0071] In order to reduce the heat loss and absorption of the electric heating film and disperse the impact force of the water flow, a third sponge layer (not shown in the figure) fixedly arranged between the third supporting plate 2353 and the third thermal insulation sponge 2352 is further included.

[0072] The third water collecting module 240 comprises a fourth mounting unit 241, a fourth drainage unit 242 fixedly connected with the fourth mounting unit 241, and a third water collecting pipeline 243 fixedly connected with the fourth drainage unit 242;

[0073] The fourth mounting unit 241 is fixedly connected with the bottom disc 100 through a detachable structure, and comprises a seventh long side plate 2411 and an eighth long side plate 2412 arranged in parallel and oppositely, and a fifth end plate 2413 fixedly arranged between the seventh long side plate 2411 and the eighth long side plate 2412;

[0074] Specifically, the long side outer side of the seventh long side plate 2411 is provided with a sixth mounting edge (not shown in the figure), and the sixth mounting edge 2411A is fixedly arranged on the bottom disc 100 through a detachable structure, so as to realize the fixed connection between the fourth mounting unit 241 and the bottom disc 100.

[0075] Specifically, the seventh long side plate 2411 and the eighth long side plate 2412 are provided with a seventh mounting edge 2414 on the side away from the fifth end plate 2413, and the seventh mounting edge 2414 is fixedly arranged on the third mounting unit 231 through a detachable structure, so as to realize the fixed connection between the fourth mounting unit 241 and the third mounting unit 231.

[0076] The fourth drainage unit 242 comprises a seventh drainage plate 2421 fixedly connected with the seventh long side plate 2411 at a certain angle, and an eighth drainage plate 2422 fixedly connected with the eighth long side plate 2412 at a certain angle.

[0077] The third water collecting pipeline 243 is a hollow pipeline arranged in the fourth mounting unit 241, one end of the hollow pipeline is fixedly connected with the fifth end plate 2413, and the other end extends to the outside of the fourth mounting unit 241 by a certain length, and the extending part is directly inserted into connection with the third connecting port 2331A, so as to realize the through connection between the second water collecting pipeline 233 and the third water collecting pipeline 243.

[0078] Specifically, the seventh side plate 2431 and the eighth side plate 2432 are arranged in parallel, and the fourth top plate 2433 and the fourth bottom plate 2434 are fixedly connected with the seventh side plate 2431 and the eighth side plate 2432 and arranged in parallel; the seventh side plate 2431 is fixedly connected with the seventh drainage plate 2421, and the eighth side plate 2432 is fixedly connected with the eighth drainage plate 2422; a plurality of fourth water collecting openings 2433A are arranged on the fourth top plate 2433 at intervals; in order to make the defrosting water collected by the third water collecting pipeline 243 flow into the second water collecting pipeline 233, the height between the fourth bottom plate 2434 and the fourth top plate 2433 gradually increases from the side close to the fifth end plate 2413 to the side close to the second water collecting pipeline 233.

[0079] In order to make the evaporator not contact the water receiving device 200 as much as possible, a plurality of fourth rubber pads 244 fixedly arranged on the fourth top plate 2433 are further included.

[0080] In order to prevent the water receiving plate from icing in an extremely low environment, a fourth heating unit 245 is further included, which comprises a fourth electric heating film 2451 fixedly arranged under the fourth bottom plate 2434 and a fourth heat preservation sponge 2452 fixedly arranged under the fourth electric heating film 2451.

[0081] In order to reinforce the fourth heating unit 245, a plurality of fourth support plates 2453 fixedly connected with the seventh long side plate 2411 and the eighth long side plate 2412 and horizontally arranged below the fourth heat preservation sponge 2452 are further included.

[0082] In order to reduce the heat loss and absorption of the electric heating film and absorb and disperse the impact force of the water flow, a fourth sponge layer (not shown in the figure) fixedly arranged between the fourth support plate 2453 and the fourth heat preservation sponge 2452 is further included.

[0083] In order to adapt to different working conditions or energy saving requirements, the first heating unit 215, the second heating unit 225, the third heating unit 235 and the fourth heating unit 245 are all provided with separate power supply leads, so as to realize independent control of each heating unit.

[0084] In order to realize sealed connection between the water receiving modules, a sealing ring is arranged along the opening edge of the first connecting port 2131A, the second connecting port 2131B and the third connecting port 2331A.

[0085] Compared with the prior art, the utility model achieves the following technical effects:

[0086] 1) The water collecting and draining device is composed of a plurality of detachably connected modules; so that the water collecting and draining device can adapt to different installation environments and requirements, and according to different use scenarios, the number and layout of each module can be flexibly adjusted to meet specific space and functional requirements; the detachable design makes the installation and maintenance of the water collecting and draining device more convenient;

[0087] 2) By reasonably arranging the heating wire, direct contact with the condensed water is avoided, the risk of electric leakage is reduced, and the electrical safety of the whole system is improved;

[0088] 3) Reduce the contact area between the evaporator and the bottom plate, reduce the water collection and icing phenomenon, and significantly improve the reliability and safety of the whole unit;

[0089] 4) Improve the working environment, reduce the electrical safety risk, and reduce the failure rate;

[0090] 5) Reduce the replacement and maintenance of components caused by impact force, and reduce the maintenance cost of the equipment.

[0091] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. In the embodiments of the present application and the claims, the singular forms "a", "said" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that "a plurality of" means two or more, unless otherwise stated. The terms "first", "second", "third" and the like are only used to distinguish, not to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. The term "and / or" used herein means and includes any or all possible combinations of one or more associated listed items. The above description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. In the description of the present application, the specific meaning of the above terms in the present application can be understood by the person of ordinary skill in the art according to the specific circumstances.

[0092] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application.

Claims

1. A water collection and drainage device for an evaporator, characterized by: The water collection and drainage module comprises a pipe with two closed ends, a first drainage hole is formed on the bottom wall of the pipe, a plurality of first water collection openings are arranged on the top wall of the pipe in a spaced manner, and a first connecting opening is formed on the side wall of the pipe. The first water collection module comprises a first water collection pipe with one closed end, the open end of the first water collection pipe is inserted into the first connecting opening, and a plurality of second water collection openings are arranged on the top wall of the first water collection pipe. The first drainage hole is arranged at the maximum height from the bottom wall to the top wall of the pipe; and the height from the bottom wall to the top wall of the first water collection pipe continuously increases from the closed end to the open end.

2. The water collecting and draining device for an evaporator according to claim 1, characterized by: The water collection and drainage module further comprises a first heating unit fixedly arranged below the bottom wall thereof, and the first water collection module further comprises a second heating unit fixedly arranged below the bottom wall thereof, wherein the first heating unit and the second heating unit are respectively provided with a separate power supply lead.

3. The water collecting and draining device for an evaporator according to claim 2, characterized by: The first heating unit comprises an electric heating film and a heat preservation sponge fixedly arranged below the first heating unit, and the second heating unit has the same structure as the first heating unit.

4. The water collecting and draining device for an evaporator according to claim 3, characterized by: The water collection and drainage module further comprises a plurality of rubber pads fixedly arranged on the top wall thereof, and the first water collection module further comprises a plurality of rubber pads fixedly arranged on the top wall thereof.

5. The water collecting and draining device for an evaporator according to claim 4, characterized by: The water collection and drainage module further comprises a plurality of drainage plates arranged on the top wall thereof and located on both sides of the plurality of first water collection openings; and the first water collection module further comprises a plurality of drainage plates arranged on the top wall thereof and located on both sides of the plurality of second water collection openings.

6. The water collecting and draining device for an evaporator according to claim 5, characterized in that: A sealing ring is arranged along the open edge of the first connecting opening.

7. The water collecting and draining device for an evaporator according to claim 6, characterized by:

8. The water collection and drainage device for an evaporator according to claim 7, wherein: The water collection and drainage module further comprises a first mounting unit, and the pipe is fixedly arranged in the first mounting unit, which comprises a first long side plate and a second long side plate arranged in parallel, the first long side plate is provided with a first connecting groove connected with the first water collection module, the second long side plate is provided with a second drainage hole, and the first drainage hole and the second drainage hole are connected by a pipe; The first water collection module further comprises a second mounting unit, and the first water collection pipe is fixedly arranged in the second mounting unit, which comprises a third long side plate and a fourth long side plate arranged in parallel; the third long side plate and the fourth long side plate are respectively provided with mounting edges on one side close to the open end of the first water collection pipe, and the mounting edges are fixedly connected with the first mounting unit. The water collection and drainage module further comprises a second water collection module and a third water collection module; and the side wall of the water collection and drainage module is further provided with a second connecting opening; 9. The water collecting and draining device for an evaporator according to claim 8, characterized by: The second water collection module comprises a second water collection pipe with one closed end, the open end of the second water collection pipe is inserted into the second connecting opening, and a plurality of third water collection openings are arranged on the top wall of the second water collection pipe; and a third connecting opening is formed on the side wall of the second water collection pipe. The third water collection module comprises a third water collection pipe with one closed end, the open end of the third water collection pipe is inserted into the third connecting opening, and a plurality of fourth water collection openings are arranged on the top wall of the third water collection pipe. ​ 10. The water collecting and draining device for an evaporator according to claim 9, characterized by: The height of the bottom wall to the top wall of the second water collecting pipe continuously increases from the closed end to the open end; the height of the bottom wall to the top wall of the third water collecting pipe continuously increases from the closed end to the open end.

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