CN218805805U - Drainage structure for preventing condensate water from flowing reversely for air conditioner of railway vehicle - Google Patents
Drainage structure for preventing condensate water from flowing reversely for air conditioner of railway vehicle Download PDFInfo
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- CN218805805U CN218805805U CN202223446843.3U CN202223446843U CN218805805U CN 218805805 U CN218805805 U CN 218805805U CN 202223446843 U CN202223446843 U CN 202223446843U CN 218805805 U CN218805805 U CN 218805805U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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Abstract
The utility model discloses a rail vehicle air conditioner prevents palirrhea drainage structures of comdenstion water, sets up on the bottom plate of air conditioner, include: the bottom plate is divided into a top surface and a bottom surface, and the top surface faces the inside of the air conditioner cavity; openings of the evaporation cavity drainage groove and the fresh air cavity drainage groove face the bottom surface and are fixed on the bottom surface, an inlet of the communicating pipe is communicated with an outlet of the fresh air cavity drainage groove and extends into the evaporation cavity drainage groove, and outlets of the communicating pipe are arranged in the outlet of the evaporation cavity drainage groove; the water nozzle is fixed on the bottom plate and is provided with a through stepped hole, the reducing part of the stepped hole is a transition surface, one end of the large hole of the stepped hole, which is far away from the transition surface, is a water nozzle inlet, the other end of the stepped hole is a water nozzle outlet, the water nozzle inlet is flush with the top surface, and the outlet is arranged in the fresh air cavity drainage groove; the water collecting cover is fixed above the water diversion nozzle, and a water inlet is arranged at the bottom end of one side wall. The problem that the existing drainage structure cannot meet the drainage of condensed water on the premise of centralized drainage of the fresh air cavity and the evaporation cavity is solved.
Description
Technical Field
The utility model relates to a rail vehicle air conditioner field especially relates to a rail vehicle air conditioner prevents palirrhea drainage structures of comdenstion water.
Background
During the refrigeration process of the air conditioner of the railway vehicle, condensed water separated out from the surface of the evaporator directly enters the evaporation cavity drainage tank through the evaporation cavity drainage mechanism. When the fresh air volume is large and the rail vehicle is in the storm rain, a certain amount of rainwater can be sucked into the fresh air cavity. The negative pressure in the evaporation cavity is large, so that the negative pressure in the fresh air cavity communicated with the evaporation cavity is large, condensed water and rainwater must be separately discharged, and otherwise, the condensed water can be completely sucked to the fresh air cavity under the influence of air pressure difference.
Unlike household air conditioners, the weight and space of rail vehicle air conditioners are strictly limited, and the current rail vehicle air conditioners with partial outlets require the collection and exhaust of fresh air cavities and evaporation cavities. If directly make evaporation chamber and new trend chamber sharing a collection calandria, the negative pressure can make the unable discharge of air conditioner comdenstion water, leads to the comdenstion water all by the suck-back to new trend chamber, forms the splash even under the effect of external air current, and inside the comdenstion water entered into the carriage through wind gap and wind channel under the effect of fan, not only influenced the comfort level of carriage internal environment, more can cause the influence to the electrical equipment in the car.
Disclosure of Invention
The utility model provides a rail vehicle air conditioner prevents palirrhea drainage structures of comdenstion water to overcome current drainage structures and can't satisfy comdenstion water exhaust problem under the prerequisite of new trend chamber and evaporation chamber collection row.
In order to realize the purpose, the technical scheme of the utility model is that:
a drainage structure of a rail vehicle air conditioner for preventing backflow of condensed water is arranged on a bottom plate of the air conditioner, and comprises: the bottom plate is divided into a top surface and a bottom surface, and the top surface faces the inside of the air conditioner cavity;
the openings of the evaporation cavity drainage groove and the fresh air cavity drainage groove face the bottom surface, the evaporation cavity drainage groove and the fresh air cavity drainage groove are fixed on the bottom surface, the inlet of the communicating pipe is communicated with the outlet of the fresh air cavity drainage groove, the communicating pipe extends into the evaporation cavity drainage groove, and the outlet of the communicating pipe is arranged in the outlet of the evaporation cavity drainage groove;
the water nozzle is fixed on the bottom plate, the water nozzle is provided with a through step hole, the reducing part of the step hole is a transition surface, the end, far away from the transition surface, of the large hole of the step hole is a water nozzle inlet, the other end of the step hole is a water nozzle outlet, the water nozzle inlet is flush with the top surface, and the water nozzle outlet is arranged in the fresh air cavity drainage groove;
the water collecting cover is fixed above the water diversion nozzle, and a water inlet is formed in the bottom end of one side wall of the water collecting cover.
Further, communicating pipe comprises horizontal pipe, arc elbow and the outlet pipe that connects gradually, horizontal pipe intercommunication new trend chamber water drainage tank export, inside the horizontal pipe stretched into evaporation chamber water drainage tank, the outlet pipe was established in evaporation chamber water drainage tank export.
Further, the arc-shaped elbow is a 90-degree elbow.
Further, evaporation chamber drain tank bottom is equipped with the protecting tube, the protecting tube is evaporation chamber drain tank export, the outlet pipe is established in the protecting tube.
Furthermore, the outlet of the water nozzle is far away from the outlet of the fresh air cavity drainage groove.
Furthermore, a semicircular baffle is arranged at the outlet of the water nozzle.
Further, still include the rubber buffer, the cover top of catchmenting is equipped with the hole of installation rubber buffer.
The utility model has the advantages that:
after condensed water is separated out from the surface of an evaporator of the air conditioner, the condensed water directly enters an evaporation cavity drainage groove through an evaporation cavity drainage mechanism of the air conditioner and is discharged from an outlet of the evaporation cavity drainage groove; when the rainfall is small, rainwater entering the fresh air cavity can not form accumulated water on the bottom plate and can be naturally evaporated, and when the rainfall is large, rainwater entering the fresh air cavity can form accumulated water on the bottom plate, flows into the water collecting cover from the water inlet of the water collecting cover, enters the fresh air cavity drainage tank from the water diversion nozzle, flows through the communicating pipe from the fresh air cavity drainage tank, and is finally discharged from the outlet of the communicating pipe arranged in the outlet of the evaporation cavity drainage tank;
an outlet of the communicating pipe is communicated with the outside atmosphere, an air pressure difference is formed between the communicating pipe and a fresh air cavity with negative pressure, rainwater in the fresh air cavity is prevented from being discharged, a step hole arranged in the water diversion nozzle can be matched with the water collection cover to store a certain amount of rainwater and accumulate a certain liquid level, so that the rainwater can flow into a fresh air cavity drainage tank by increasing the water pressure to resist the air pressure difference, and on the other hand, airflow flowing backwards to the fresh air cavity can be formed due to the air pressure difference, the upward resistance of the airflow can be increased due to small holes of the step hole, and the rainwater accumulated in the water collection cover is prevented from being blown away and splashed;
when rainwater stored in the water collecting cover and the step hole is not enough to resist the air pressure difference, the backflow airflow formed by the air pressure difference can blow away accumulated water to splash, and the water collecting cover above the water diversion nozzle can play a role in blocking at the moment, so that the rainwater is prevented from splashing in the fresh air cavity;
the utility model discloses make rainwater and comdenstion water get into from new trend chamber and evaporation chamber respectively, discharge from same position, satisfied the demand that new trend chamber and evaporation chamber collection were arranged to the hindrance that causes the drainage through reducing the atmospheric pressure difference makes the drainage go on smoothly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a front view of a drainage structure for preventing backflow of condensed water of a rail vehicle air conditioner according to the present invention, which is provided on a bottom plate;
FIG. 2 is an enlarged view of a portion of FIG. 1 at C;
fig. 3 is a schematic structural view of a water diversion nozzle of a drainage structure of a railway vehicle air conditioner for preventing backflow of condensed water, which is disclosed by the present invention;
fig. 4 is a top view of a drainage structure of a rail vehicle air conditioner for preventing backflow of condensed water, which is provided on a bottom plate;
fig. 5 is a first structural schematic diagram of a drainage structure of a rail vehicle air conditioner for preventing backflow of condensed water, according to the present invention;
fig. 6 is a second schematic structural view of a drainage structure of a rail vehicle air conditioner for preventing backflow of condensed water, according to the present invention;
FIG. 7 is a sectional view taken along line D-D of FIG. 5;
fig. 8 is a structural schematic diagram of a water collecting cover of a drainage structure of a rail vehicle air conditioner for preventing backflow of condensed water, according to the present invention;
in the figure: 1. the novel water-saving device comprises, by weight, 1-1 parts of an evaporation cavity drainage channel, 1-2 parts of an evaporation cavity drainage channel inlet, 1-2 parts of a protective pipe, 2 parts of a fresh air cavity drainage channel, 2-1 parts of a fresh air cavity drainage channel outlet, 3 parts of a water diversion nozzle, 3-1 parts of a step hole, 3-2 parts of a semicircular baffle, 4 parts of a water collection cover, 4-1 parts of a water inlet, 4-2 parts of a rubber plug, 5 parts of a communicating pipe, 5-1 parts of a horizontal section, 5-2 parts of an arc-shaped elbow, 5-3 parts of an outlet section, A and a bottom plate.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The present embodiment provides a drainage structure of a rail vehicle air conditioner for preventing backflow of condensed water, as shown in fig. 1 to 8, provided on a bottom plate a of the air conditioner, including: the air conditioner comprises an evaporation cavity drainage channel 1, a fresh air cavity drainage channel 2, a water nozzle 3, a water collecting cover 4 and a communicating pipe 5, wherein a bottom plate A is divided into a top surface and a bottom surface, and the top surface faces the inside of an air conditioner cavity;
the openings of the evaporation cavity drainage tank 1 and the fresh air cavity drainage tank 2 face the bottom surface, the evaporation cavity drainage tank 1 and the fresh air cavity drainage tank 2 are fixed on the bottom surface, the inlet of the communicating pipe 5 is communicated with the outlet 2-1 of the fresh air cavity drainage tank, the communicating pipe 5 extends into the evaporation cavity drainage tank 1, and the outlet of the communicating pipe 5 is arranged in the outlet of the evaporation cavity drainage tank 1;
in the embodiment, the evaporation cavity drainage groove 1 and the fresh air cavity drainage groove 2 are welded on the bottom surface, and the sealing glue is coated on the circumferential welding line to ensure sealing;
the water diversion nozzle 3 is fixed on the bottom plate A, as shown in figure 2, the water diversion nozzle 3 is provided with a through step hole 3-1, the diameter change part of the step hole 3-1 is a transition surface, one end of a large hole of the step hole 3-1, which is far away from the transition surface, is an inlet of the water diversion nozzle 3, the other end of the step hole 3-1 is an outlet of the water diversion nozzle 3, the inlet of the water diversion nozzle 3 is flush with the top surface, and the outlet of the water diversion nozzle 3 is arranged in the fresh air cavity drainage groove 2;
the water collecting cover 4 is fixed above the water diversion nozzle 3, and as shown in fig. 8, a water inlet 4-1 is formed in the bottom end of one side wall of the water collecting cover 4;
the air conditioner is provided with an evaporation cavity drainage mechanism, a pipeline on the evaporation cavity drainage mechanism is connected with an inlet 1-1 of an evaporation cavity drainage groove shown in figure 4, and condensed water enters the evaporation cavity drainage groove 1 through the evaporation cavity drainage mechanism and is discharged from an outlet of the evaporation cavity drainage groove;
when the rainfall is small, rainwater entering the fresh air cavity can not form accumulated water on the bottom plate A and can be naturally evaporated, and when the rainfall is large, the rainwater entering the fresh air cavity can form accumulated water on the bottom plate A, the rainwater flows into the water collecting cover from the water inlet 4-1 of the water collecting cover 4, enters the fresh air cavity drainage tank 2 from the water nozzle 3, flows through the communicating pipe 5 from the fresh air cavity drainage tank 2, and is finally discharged from the outlet of the communicating pipe 5 arranged in the outlet of the evaporation cavity drainage tank 1, so that the rainwater and condensed water respectively enter the fresh air cavity and the evaporation cavity and are discharged from the same position, and the requirements of collection and discharge of the fresh air cavity and the evaporation cavity are met;
an outlet of the communicating pipe 5 is communicated with the outside atmosphere, an air pressure difference is formed between the communicating pipe 5 and a fresh air cavity with negative pressure, rainwater in the fresh air cavity is prevented from being discharged, a step hole 3-1 arranged in the water diversion nozzle 3 can be matched with the water collection cover 4 to store certain rainwater and accumulate certain liquid level, so that the rainwater can flow into a fresh air cavity drainage groove by increasing water pressure to resist the air pressure difference, and on the other hand, airflow flowing backwards to the fresh air cavity can be formed due to the air pressure difference, and the upward resistance of the airflow can be increased by small holes of the step hole 3-1, so that the rainwater accumulated in the water collection cover 4 is prevented from being blown away and splashed;
when the rainwater stored in the water collecting cover 4 and the rainwater stored in the stepped hole 3-1 are not enough to resist the air pressure difference, the backflow airflow formed by the air pressure difference can blow away the accumulated water to splash, and the water collecting cover 4 above the water guide nozzle can play a role in blocking at the moment, so that the rainwater is prevented from splashing in the fresh air cavity.
In a specific embodiment, as shown in fig. 7, the communicating pipe 5 is composed of a horizontal pipe 5-1, an arc-shaped elbow 5-2 and an outlet pipe 5-3 which are connected in sequence, the horizontal pipe 5-1 is communicated with an outlet 2-1 of a fresh air cavity drainage channel, the horizontal pipe 5-1 extends into the interior of the evaporation cavity drainage channel 1, and the outlet pipe 5-3 is arranged in the outlet of the evaporation cavity drainage channel 1;
in the rainwater discharging process, the relation between the air pressure difference and the water pressure of rainwater in the communicating pipe 5 is in dynamic change, when the amount of rainwater flowing into the fresh air cavity drainage tank 2 is large, the air pressure difference is smaller than the water pressure of the rainwater in the communicating pipe 5, and the rainwater can be smoothly discharged;
when the amount of rainwater flowing into the fresh air cavity drainage groove 2 is small, the air pressure difference is larger than the water pressure of the rainwater in the communicating pipe 5, the difference value between the air pressure difference and the water pressure of the rainwater in the communicating pipe 5 is small, and the rainwater can form a liquid seal at the arc-shaped elbow 5-2 under the combined action of the air pressure difference and the water pressure of the rainwater in the communicating pipe 5 to block the backflow of the rainwater;
when the rainwater volume that flows into in new trend chamber water drainage tank 2 is not enough to be full communicating pipe 5, the rainwater can receive pressure differential to influence the refluence, nevertheless because the rainwater volume is too little, has simultaneously to catchment cover 4 to block, consequently can not lead to the fact the influence to the new trend chamber.
In the specific embodiment, the arc-shaped elbow 5-2 is a 90-degree elbow, and the 90-degree elbow can better play a role in liquid seal.
In a specific embodiment, as shown in fig. 7, a protective pipe 1-2 is arranged at the bottom of the evaporation cavity drainage tank 1, the protective pipe 1-2 is an outlet of the evaporation cavity drainage tank 1, the outlet pipe 5-3 is arranged in the protective pipe 1-2, and the protective pipe 1-2 can protect the inner outlet pipe 5-3.
In the specific embodiment, the outlet of the water guide nozzle 3 is far away from the outlet of the fresh air cavity drainage groove 2, so that the backflow air flow is prevented from directly impacting the outlet of the water guide nozzle 3.
In the specific embodiment, as shown in fig. 3, the outlet of the water diversion nozzle 3 is provided with a semicircular baffle 3-2, and the upward resistance of the backflow air flow is increased by reducing the area through which the air flow can pass.
In a specific embodiment, as shown in fig. 2, the rainwater collecting cover further comprises a rubber plug 4-2, a hole for installing the rubber plug 4-2 is formed in the top end of the water collecting cover 4, and as the water diversion nozzle 3 needs to pass rainwater, silt in the rainwater can block the step hole 3-1 in a long-time use process, a hole is formed in the top end of the water collecting cover 4 above the water diversion nozzle 3, so that the water diversion nozzle is convenient for maintenance personnel to clean, and the hole is blocked by the rubber plug 4-2.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. A drainage structure of a rail vehicle air conditioner for preventing backflow of condensed water is arranged on a bottom plate (A) of the air conditioner, and is characterized by comprising: the air conditioner comprises an evaporation cavity drainage channel (1), a fresh air cavity drainage channel (2), a water diversion nozzle (3), a water collection cover (4) and a communication pipe (5), wherein the bottom plate (A) is divided into a top surface and a bottom surface, and the top surface faces the inside of an air conditioner cavity;
openings of the evaporation cavity drainage tank (1) and the fresh air cavity drainage tank (2) face the bottom surface, the evaporation cavity drainage tank (1) and the fresh air cavity drainage tank (2) are fixed on the bottom surface, an inlet of the communicating pipe (5) is communicated with an outlet of the fresh air cavity drainage tank (2), the communicating pipe (5) extends into the evaporation cavity drainage tank (1), and an outlet of the communicating pipe (5) is arranged in an outlet of the evaporation cavity drainage tank (1);
the water diversion nozzle (3) is fixed on the bottom plate (A), the water diversion nozzle (3) is provided with a through step hole (3-1), the reducing part of the step hole (3-1) is a transition surface, one end, far away from the transition surface, of a large hole of the step hole (3-1) is an inlet of the water diversion nozzle (3), the other end of the step hole (3-1) is an outlet of the water diversion nozzle (3), the inlet of the water diversion nozzle (3) is parallel to the top surface, and the outlet of the water diversion nozzle (3) is arranged in a fresh air cavity drainage channel (2);
the water collecting cover (4) is fixed above the water diversion nozzle (3), and a water inlet (4-1) is formed in the bottom end of one side wall of the water collecting cover (4).
2. The drainage structure for preventing backflow of condensed water of the air conditioner of the railway vehicle as claimed in claim 1, wherein the communication pipe (5) is composed of a horizontal pipe (5-1), an arc-shaped elbow (5-2) and an outlet pipe (5-3) which are connected in sequence, the horizontal pipe (5-1) is communicated with an outlet of the fresh air cavity drainage tank (2), the horizontal pipe (5-1) extends into the evaporation cavity drainage tank (1), and the outlet pipe (5-3) is arranged in the outlet of the evaporation cavity drainage tank (1).
3. A drainage structure of a rail vehicle air conditioner for preventing backflow of condensed water according to claim 2, wherein the curved elbow (5-2) is a 90-degree elbow.
4. A drainage structure of a railway vehicle air conditioner for preventing backflow of condensed water according to claim 2, characterized in that a protective pipe (1-2) is arranged at the bottom of the evaporation cavity drainage tank (1), the protective pipe (1-2) is an outlet of the evaporation cavity drainage tank (1), and the outlet pipe (5-3) is arranged in the protective pipe (1-2).
5. The drainage structure for preventing backflow of condensed water of the rail vehicle air conditioner as claimed in claim 1, wherein the outlet of the water diversion nozzle (3) is far away from the outlet of the fresh air cavity drainage groove (2).
6. A drainage structure for preventing backflow of condensed water of a railway vehicle air conditioner according to claim 1, wherein the outlet of the water diversion nozzle (3) is provided with a semicircular baffle (3-2).
7. The drainage structure for preventing backflow of condensed water of the air conditioner of the railway vehicle as claimed in claim 1, further comprising a rubber plug (4-2), wherein a hole for installing the rubber plug (4-2) is formed at the top end of the water collection cover (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223446843.3U CN218805805U (en) | 2022-12-22 | 2022-12-22 | Drainage structure for preventing condensate water from flowing reversely for air conditioner of railway vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223446843.3U CN218805805U (en) | 2022-12-22 | 2022-12-22 | Drainage structure for preventing condensate water from flowing reversely for air conditioner of railway vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218805805U true CN218805805U (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223446843.3U Active CN218805805U (en) | 2022-12-22 | 2022-12-22 | Drainage structure for preventing condensate water from flowing reversely for air conditioner of railway vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218805805U (en) |
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2022
- 2022-12-22 CN CN202223446843.3U patent/CN218805805U/en active Active
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