CN110843833A - Double-air-inlet type drainage anti-suck-back air conditioner - Google Patents
Double-air-inlet type drainage anti-suck-back air conditioner Download PDFInfo
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- CN110843833A CN110843833A CN201911260198.6A CN201911260198A CN110843833A CN 110843833 A CN110843833 A CN 110843833A CN 201911260198 A CN201911260198 A CN 201911260198A CN 110843833 A CN110843833 A CN 110843833A
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- air
- evaporator
- box body
- compressor
- double
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/0072—Means for cooling only
Abstract
A double-air-inlet type air conditioner with water drainage and back suction prevention is characterized in that an evaporator is arranged at the upper end of the rear part of the inner side of a box body, an electric heater is arranged at the front end of the evaporator, a ventilator is arranged at the upper end of the front part of the inner side of the box body, a fresh air fan is arranged at the bottom end of the rear part of the inner side of the box body, an air inlet of a compressor is connected with an air outlet of the evaporator through a pipeline, an air outlet of the compressor is connected with an air inlet of a condenser arranged at the front part of the inner side of; the high-pressure switch is arranged on a pipeline between the compressor and the condenser, the low-pressure switch is arranged on a pipeline between the compressor and the evaporator, the bottom of the evaporator is provided with a water storage disc, and the bottom of the water storage disc is connected with a double-U-shaped drain pipe. The invention can intake air indoors and outdoors, and has good refrigeration and cooling effects of water drainage and suck back prevention; the local high temperature in a cab, a machinery room and an electric appliance room in the locomotive can be quickly reduced and relieved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a double-air-inlet type drainage anti-suck-back air conditioner.
Background
Air conditioners, i.e., room air conditioners, are units used to provide process air to a room or enclosed space, area. The function of the air conditioner is to adjust the temperature, humidity, cleanliness and air flow rate of the air in the room or the closed space or the area, so as to meet the requirements of human comfort or technological process.
At present, the refrigeration and cooling effects of an air conditioner in a locomotive are poor.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and providing a double-air-inlet type drainage anti-suck-back air conditioner which can realize indoor and outdoor air inlet and has good refrigeration and cooling effects of drainage anti-suck-back.
The technical scheme adopted by the invention for solving the technical problems is as follows: a double-air-inlet type drainage anti-suck-back air conditioner comprises a box body, an air processing assembly, a compression and condensation assembly and a control assembly, wherein the air processing assembly and the compression and condensation assembly are arranged in the box body and mutually independent in space; the evaporator is arranged at the upper end of the rear part of the inner side of the box body, the electric heater is arranged at the front end of the evaporator, the ventilator is arranged at the upper end of the front part of the inner side of the box body, an air supply outlet of the ventilator is communicated with the outer part of the box body, the fresh air fan is arranged at the bottom end of the rear part of the inner side of the box body and is communicated with the outer part of the box body, the compressor is arranged at the middle part of the inner side of the box body, an air inlet of the compressor is connected with an air outlet of the evaporator through a pipeline, an air outlet of the compressor is connected with an air inlet of a condenser arranged at the front part of the inner side of the box body through a drying filter, and the condensing fan is arranged; the high-pressure switch is arranged on a pipeline between the compressor and the condenser, the low-pressure switch is arranged on a pipeline between the compressor and the evaporator, the controller is arranged at the rear end of the inner side of the box body, and the temperature sensors are respectively arranged beside the fresh air fan and the controller; the bottom of the evaporator is provided with a water storage disc, and the bottom of the water storage disc is connected with a double-U-shaped drain pipe.
Furthermore, the U-shape of the upper part of the drain pipe is inverted, and the U-shape of the lower part of the drain pipe is arranged leftwards. When the condensed water flows into the U-shaped bend, the water seal is formed at the U-shaped bend by the self weight of the condensed water and the negative pressure of the indoor cavity is balanced by the positive pressure of the air exhaust generated by the outdoor fan at the end of the water exhaust pipe.
Further, the inboard of evaporimeter is provided with the return air filter screen, the inboard of return air filter screen is provided with the capillary, the pipeline between drier-filter and the evaporimeter is close the evaporimeter section parcel in the capillary.
Furthermore, the evaporator is composed of an internal thread copper pipe and an aluminum cooling fin.
Furthermore, the surface of the aluminum radiating fin is provided with a hydrophilic film, a thread groove is formed in the inner part of the internal thread copper pipe to enhance heat dissipation, and the internal thread copper pipe and the aluminum radiating fin are mechanically expanded.
Furthermore, the electric heater comprises nine round electric heating pipes and a fixed frame, and a two-stage electric heating temperature protection switch is arranged on the electric heater.
Further, the ventilator is a centrifugal fan with forward vanes and a volute.
Further, a motor protection device is arranged in the compressor.
Further, the compressor is a fully enclosed scroll type.
The working principle is as follows:
the invention is installed under the control console in the driver's cabin, the return air inlet of the air conditioner condensing fan is near the indoor end face, the fresh air inlet is at the bottom of the air conditioner, the mixed air enters the evaporator and the electric heater through the return air filter screen after the fresh air and the return air are mixed in the air cavity, and the controller determines whether the air is heated or cooled. The treated air reaches the interior of the cab through an air outlet above the air conditioner and an air supply duct provided on the vehicle console. The air inlet of the compressor condensation system is positioned at the front part of the locomotive and the rear part of the air conditioning unit. The air heated by the condenser energy exchange is discharged from the under-floor air outlet of the locomotive to the outside.
The invention has the advantages that air can be supplied indoors and outdoors by arranging the fresh air fan, the ventilator and the double U-shaped drain pipe, and meanwhile, the refrigeration and cooling effects of draining and preventing suck-back are good; the high temperature in the cab in the locomotive can be quickly reduced and relieved, and a comfortable environment is provided for the operation of workers.
Drawings
FIG. l is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic diagram of the present invention.
In the drawings: 1. the air conditioner comprises a box body, a 21, an evaporator, a 211, a return air filter screen, a 212, a capillary tube, a 22, an electric heater, a 23, a ventilator, 231, an air supply outlet, 24, a fresh air fan, 31, a compressor, 32, a condenser, 33, a condensing fan, 34, a drying filter, 411, a high-pressure switch, 412, a low-pressure switch, 42, a temperature sensor, 43, a controller, 51, a water storage disc, 52 and a water discharge pipe.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention:
as shown in fig. 1 and 2, an embodiment of a double-air-inlet type water-discharge back-suction-prevention air conditioner comprises a box body 1, an air processing assembly and a compression condensing assembly which are arranged in the box body 1 and have mutually independent spaces, and a control assembly, wherein the air processing assembly comprises an evaporator 21, an electric heater 22, a ventilator 23 and a fresh air fan 24, the compression condensing assembly comprises a compressor 31, a condenser 32, a condensing fan 33 and a drying filter 34, and the control assembly comprises a high-pressure switch 411, a low-pressure switch 412, a temperature sensor 42 and a controller 43; the evaporator 21 is arranged at the upper end of the rear part of the inner side of the box body 1, the electric heater 22 is arranged at the front end of the evaporator 21, the ventilator 23 is arranged at the upper end of the front part of the inner side of the box body 1, the air supply outlet 231 of the ventilator is communicated with the outer part of the box body 1, the fresh air fan 24 is arranged at the bottom end of the rear part of the inner side of the box body 1 and is communicated with the outer part of the box body 1, the compressor 31 is arranged at the middle part of the inner side of the box body 1, the air inlet of the compressor 31 is connected with the air outlet of the evaporator 21 through a pipeline, the air outlet of the compressor 31 is connected with the air inlet of the condenser 32 arranged at the front part of the inner side of the box body 1 through a pipeline, the air inlet of; the high pressure switch 411 is arranged on a pipeline between the compressor 31 and the condenser 32, the low pressure switch 412 is arranged on a pipeline between the compressor 31 and the evaporator 21, the controller 43 is arranged at the rear end of the inner side of the box body 1, and the temperature sensor 42 is respectively arranged beside the fresh air fan 24 and the controller 43; the bottom of the evaporator 21 is provided with a water storage disc 51, the bottom of the water storage disc 51 is connected with a double-U-shaped water discharge pipe 52, the U-shape at the upper part of the water discharge pipe 52 is inverted, and the U-shape at the lower part is arranged leftwards.
The inside of the evaporator is provided with a return air filter screen 211, the inside of the return air filter screen 211 is provided with a capillary tube 212, and the section of the pipeline between the drying filter 34 and the evaporator 21, which is close to the evaporator 21, is wrapped in the capillary tube 212.
The evaporator 21 consists of an internal thread copper pipe and an aluminum radiating fin, wherein a hydrophilic film is arranged on the surface of the aluminum radiating fin, a thread groove is formed in the internal thread copper pipe to enhance heat dissipation, and the internal thread copper pipe and the aluminum radiating fin are mechanically expanded; so as to achieve the best heat conduction efficiency; the electric heater 22 is composed of nine round electric heating tubes and a fixed frame, and a two-stage electric heating temperature protection switch is arranged on the electric heater; the fan 23 is a centrifugal fan having a forward vane, a volute. Driven by a 440V 3AC 60Hz double-speed motor, can send two different air volumes of about 400m3/h and 800m3/h under the control of a control system; a motor protection device is arranged in the compressor; the purpose is for the motor to reach too high a temperature, current delay, phase loss or mechanical blocking caused by voltage fluctuation.
The compressor 31 is a fully-closed scroll type, and the power supply is 3AC 440V and 60Hz AC; the condensing fan 33 has two centrifugal condensing fans. When power is supplied to the power supply of 3AC 440V and 60Hz, the total air volume is 2500m3/h, and the static pressure is 150 Pa. Controller 43 may perform all control, regulation, protection, and fault diagnosis functions within the air conditioning system. And a singlechip control mode is adopted, and a core part is a control board and provides an RS232C interface, so that software can be upgraded and installed through the interface. And can use the interface to communicate with the control panel using a laptop computer.
Those not described in detail in the specification are well within the skill of the art.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as being within the protection scope of the present invention.
Claims (9)
1. A double-air-inlet type drainage suck-back-preventing air conditioner is characterized by comprising a box body, an air processing assembly, a compression condensing assembly and a control assembly, wherein the air processing assembly and the compression condensing assembly are arranged in the box body and are mutually independent in space; the evaporator is arranged at the upper end of the rear part of the inner side of the box body, the electric heater is arranged at the front end of the evaporator, the ventilator is arranged at the upper end of the front part of the inner side of the box body, an air supply outlet of the ventilator is communicated with the outer part of the box body, the fresh air fan is arranged at the bottom end of the rear part of the inner side of the box body and is communicated with the outer part of the box body, the compressor is arranged at the middle part of the inner side of the box body, an air inlet of the compressor is connected with an air outlet of the evaporator through a pipeline, an air outlet of the compressor is connected with an air inlet of a condenser arranged at the front part of the inner side of the box body through a drying filter, and the condensing fan is arranged; the high-pressure switch is arranged on a pipeline between the compressor and the condenser, the low-pressure switch is arranged on a pipeline between the compressor and the evaporator, the controller is arranged at the rear end of the inner side of the box body, and the temperature sensors are respectively arranged beside the fresh air fan and the controller; the bottom of the evaporator is provided with a water storage disc, and the bottom of the water storage disc is connected with a double-U-shaped drain pipe.
2. The double inlet type water discharge suck-back prevention air conditioner as claimed in claim 1, wherein the drain pipe has an inverted U-shape at an upper portion thereof and a left-facing U-shape at a lower portion thereof.
3. The double-air-inlet type water-discharge back-suction-prevention air conditioner as claimed in claim 2, wherein a return air filter screen is arranged on the inner side of the evaporator, a capillary tube is arranged on the inner side of the return air filter screen, and a pipeline between the drying filter and the evaporator is wrapped in the capillary tube near the evaporator section.
4. A double inlet type water discharge suck-back prevention air conditioner according to claim 3, wherein the evaporator is composed of an internally threaded copper pipe and an aluminum heat sink.
5. The air conditioner of claim 4, wherein the surface of the aluminum heat sink is provided with a hydrophilic film, the inner thread copper tube is provided with a thread groove for enhancing heat dissipation, and the inner thread copper tube and the aluminum heat sink are mechanically expanded.
6. The double-air-inlet type water-discharge back-suction-prevention air conditioner as claimed in claim 5, wherein the electric heater is composed of nine circular electric heating pipes and a fixed frame, and a two-stage electric heating temperature protection switch is arranged on the electric heater.
7. The air conditioner of claim 6, wherein said fan is a centrifugal fan having a forward vane, a volute.
8. The double-inlet type water-discharge back-suction prevention air conditioner as claimed in claim 7, wherein a motor protection device is arranged inside the compressor.
9. The double-intake drainage back-suction prevention air conditioner as claimed in claim 8, wherein the compressor is a fully-enclosed scroll compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911260198.6A CN110843833A (en) | 2019-12-10 | 2019-12-10 | Double-air-inlet type drainage anti-suck-back air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911260198.6A CN110843833A (en) | 2019-12-10 | 2019-12-10 | Double-air-inlet type drainage anti-suck-back air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110843833A true CN110843833A (en) | 2020-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911260198.6A Pending CN110843833A (en) | 2019-12-10 | 2019-12-10 | Double-air-inlet type drainage anti-suck-back air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110843833A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022096238A1 (en) * | 2020-11-03 | 2022-05-12 | Siemens Mobility GmbH | Air-conditioning system for a vehicle |
-
2019
- 2019-12-10 CN CN201911260198.6A patent/CN110843833A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022096238A1 (en) * | 2020-11-03 | 2022-05-12 | Siemens Mobility GmbH | Air-conditioning system for a vehicle |
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