CN209944575U - Condensing and heat exchanging system of outdoor unit of air conditioner - Google Patents
Condensing and heat exchanging system of outdoor unit of air conditioner Download PDFInfo
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- CN209944575U CN209944575U CN201920765677.2U CN201920765677U CN209944575U CN 209944575 U CN209944575 U CN 209944575U CN 201920765677 U CN201920765677 U CN 201920765677U CN 209944575 U CN209944575 U CN 209944575U
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Abstract
The utility model relates to an air conditioning technology field discloses an air condensing and heat exchanging system of outdoor unit, including dry cooler, outer fan, set up in dry cooler export with output pipeline between the plate heat exchanger refrigerant entry, set up in plate heat exchanger refrigerant export with input pipeline, water pump between the dry cooler entry. The utility model has the advantages of it is following and effect: the refrigerant is condensed and exchanges heat with the refrigerant of the indoor unit in the plate heat exchanger, and the refrigerant selects water, so that the specific heat capacity is large and stable, and the heat exchange is efficient and stable; the plate heat exchanger occupies a small area during installation, is convenient to install according to the actual building topography, and has strong installation adaptability; the controller controls the rotating speed of the external fan through the water temperature of the refrigerant, and plays roles in automatic control and speed regulation, energy conservation and consumption reduction; and the time sensor, the controller and the second contactor are used for switching the two water pumps at regular time.
Description
Technical Field
The utility model relates to an air conditioning technology field, in particular to air condensing and heat exchanging system of outdoor unit.
Background
The machine room air conditioner is a high-precision air conditioner specially used for a machine room, and the main service object is equipment in the machine room, so that stable and reliable working temperature, relative humidity and air cleanliness are provided for the machine room. The structure of air conditioner includes indoor set and off-premises station, and prior art generally adopts the mode of forced air cooling heat transfer when wherein the off-premises station condensation heat transfer, but the mode of forced air cooling heat transfer has following shortcoming: the specific heat capacity of air is little and unstable, and heat transfer performance is unstable, and the heat transfer efficiency is also lower through the heat transfer mode of the copper pipe aluminium fin of air and condenser simultaneously.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air condensing units condensation heat transfer system has the effect that heat exchange efficiency is high.
The above technical purpose of the present invention can be achieved by the following technical solutions: a condensation heat exchange system of an outdoor unit of an air conditioner comprises a dry cooler, an outer fan, a plate heat exchanger, an output pipeline arranged between an outlet of the dry cooler and a refrigerant inlet of the plate heat exchanger, an input pipeline arranged between the refrigerant outlet of the plate heat exchanger and the inlet of the dry cooler, and a water pump.
By adopting the technical scheme, the plate heat exchanger comprises a refrigerant inlet, a refrigerant outlet, a refrigerant inlet and a refrigerant outlet, and the refrigerant of the indoor unit of the air conditioner enters the plate heat exchanger from the refrigerant inlet, exchanges heat with the refrigerant and then comes out from the refrigerant outlet and then returns to the indoor unit. The water pump drives the refrigerant to circularly flow in the dry cooler, the output pipeline, the plate heat exchanger and the input pipeline, the low-temperature refrigerant enters the plate heat exchanger, exchanges heat with the refrigerant, and then enters the dry cooler and the plate heat exchanger through the output pipeline after being cooled. Compared with air cooling heat exchange in the prior art, the heat exchange efficiency is high, the heat loss is small, and the heat exchange effect is better.
The utility model discloses a further set up to: the water supply system also comprises a water replenishing tank and a water supply pipe, wherein one end of the water supply pipe is communicated with the water replenishing tank, and the other end of the water supply pipe is communicated with the input pipeline tank.
By adopting the technical scheme, the water replenishing tank is connected with the input pipeline through the water supply pipe and is used for replenishing the refrigerant.
The utility model discloses a further set up to: the water replenishing tank is provided with a water replenishing pipe, a water discharge opening and a water discharge valve for opening and closing the water discharge opening.
The utility model discloses a further set up to: the water pumps are arranged on the output pipeline, and the number of the water pumps is two and the two water pumps are arranged in parallel.
Through adopting above-mentioned technical scheme, the water pump sets up two, and one of them water pump operation, another water pump is as reserve.
The utility model discloses a further set up to: the system comprises two dry coolers, wherein one end of the input pipeline is divided into two input branch pipes, and the input branch pipes are respectively connected with the two dry coolers; one end of the output pipeline is divided into two output branch pipes, and the output branch pipes are respectively connected with the two dry coolers.
Through adopting above-mentioned technical scheme, dry the cold ware sets up two, and when one of them dry the cold ware trouble, another dry the cold ware starts the operation, guarantees air condensing units's normal operating.
The utility model discloses a further set up to: the input branch pipe is provided with a first valve, and the output branch pipe is provided with a second valve.
The utility model discloses a further set up to: the first valve and the second valve are both ball valves.
The utility model discloses a further set up to: the water pump control system comprises a water pump, a controller, a water temperature sensor, a time sensor, a frequency converter, a first contactor and a second contactor, wherein the water temperature sensor is used for detecting the temperature of a refrigerant and is electrically connected with the controller, the time sensor is electrically connected with the controller, the frequency converter is electrically connected with the controller, the first contactor is connected with the frequency converter and the controller and is used for controlling the outer fan, and the second contactor is connected with the controller and is used for controlling the water pump.
By adopting the technical scheme, the water temperature sensor is arranged on the input pipeline and used for detecting the temperature of the refrigerant and sending a temperature signal, the controller sends a voltage signal after receiving the temperature signal, and the frequency converter controls the speed change of the outer fan through the first contactor after receiving the voltage signal. After the controller sends out a switching signal, the contactor controls the external fan to start and stop after receiving the switching signal.
The time sensor transmits a time signal to the controller, the controller sends a switching signal after receiving the time signal, the contactor II controls the water pumps to start and stop after receiving the switching signal, and when the number of the water pumps is two, the two water pumps can be switched to operate at regular time.
The utility model discloses a further set up to: the cold medium circulating in the dry cooler, the output pipeline, the input pipeline and the plate heat exchanger is water.
By adopting the technical scheme, the specific heat capacity of water is large and stable, and the heat exchange capacity is strong.
The utility model has the advantages that:
the water pump drives the refrigerant to circularly flow in the dry cooler, the output pipeline, the plate heat exchanger and the input pipeline, and the refrigerant is condensed and exchanged with the refrigerant of the indoor unit in the plate heat exchanger, so that the heat exchange efficiency is high and the heat exchange effect is good.
And secondly, water is selected by a refrigerant, the specific heat capacity is large and stable, and the heat exchange performance is stable and efficient in the heat exchange process of the plate heat exchanger.
The plate heat exchanger occupies a small area during installation, is convenient to install according to the actual building terrain, and has strong installation adaptability;
a water temperature sensor in a condensation heat exchange system of the air conditioner outdoor unit detects the water temperature, and a controller controls the rotating speed of an external fan through the water temperature of a refrigerant, so that the effects of automatic control, speed regulation, energy conservation and consumption reduction are achieved; and the time sensor, the controller and the second contactor are used for switching the two water pumps at regular time.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the embodiment.
Fig. 2 is a control schematic of the embodiment.
In the figure, 1, a dry cooler; 11. an outer fan; 2. a plate heat exchanger; 3. an output pipeline; 31. an output branch pipe; 311. a second valve; 4. an input pipeline; 41. an input branch pipe; 411. a first valve; 5. a water pump; 6. a water replenishing tank; 61 a water supply pipe; 62. a water replenishing pipe; 63. a water discharge opening; 64. a water drain valve; 7. a controller; 71. a first contactor; 72. a second contactor; 73. a frequency converter; 8. a water temperature sensor; 9. and a time sensor.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Example (b): a condensation heat exchange system of an air conditioner outdoor unit is shown in figure 1 and comprises two dry coolers 1, two outer fans 11 corresponding to the dry coolers 1 and a plate type heat exchanger 2, wherein the plate type heat exchanger 2 comprises a refrigerant inlet, a refrigerant outlet, a refrigerant inlet and a refrigerant outlet, and the refrigerant inlet and the refrigerant outlet are connected with an air conditioner indoor unit through copper pipes. An input pipeline 4 and an output pipeline 3 are arranged between the plate heat exchanger 2 and the dry cooler 1, one end of the output pipeline 3 is divided into two output branch pipes 31, and the other end of the output pipeline is connected with a refrigerant inlet of the plate heat exchanger 2. Two output branch pipes 31 are respectively connected with the outlets of the two dry coolers 1. One end of the input pipeline 4 is divided into two input branch pipes 41, and the other end is connected with a refrigerant outlet of the plate heat exchanger 2. The input branch pipes 41 are respectively connected with the outlets of the two dry coolers 1. The first valve 411 is installed on the input branch pipe 41, the second valve 311 is installed on the output branch pipe 31, and the first valve 411 and the second valve 311 are ball valves respectively.
Two water pumps 5 are arranged on the output pipeline 3, and the two water pumps 5 are arranged in parallel. The condensation heat exchange system of the air conditioner outdoor unit further comprises a water replenishing tank 6, a water supply pipe 61 with one end communicated with the water replenishing tank 6 and the other end communicated with the output pipeline 3, and a water replenishing pipe 62 communicated with the water replenishing tank 6, wherein the water replenishing tank 6 is provided with a water discharge opening 63 and a water discharge valve 64 for opening and closing the water discharge opening 63. The refrigerants in the dry cooler 1, the output pipeline 3, the input pipeline 4, the plate heat exchanger 2 and the water replenishing tank 6 are all water.
As shown in fig. 2, the condensing and heat exchanging system of the outdoor unit of the air conditioner further includes a controller 7, a water temperature sensor 8 installed on the input pipeline 4, a time sensor 9 electrically connected to the controller 7, a frequency converter 73 electrically connected to the controller 7, a first contactor 71 electrically connected to the frequency converter 73 and the controller 7, and a second contactor 72 electrically connected to the controller 7, wherein the number of the first contactors 71 is two, and the two contactors are respectively connected to the external fan 11 and are used for controlling the start, the rotation speed, and the stop of the external fan 11. The second contactors 72 are connected with the two water pumps 5 respectively and used for controlling the start and stop of the water pumps 5.
When the condensing heat exchange system of the outdoor unit of the air conditioner works: the water pump 5 drives the refrigerant to circularly flow in the dry cooler 1, the output pipeline 3, the plate heat exchanger 2 and the input pipeline 4. The refrigerant of the indoor unit of the air conditioner enters the plate type heat exchanger 2, exchanges heat with the refrigerant and then flows back to the indoor unit of the air conditioner. The time sensor 9 transmits a time signal to the controller 7 at regular time, the controller 7 sends a switching signal to the second contactor 72 after receiving the time signal, and the second contactor 72 controls one of the water pumps 5 to stop and the other water pump 5 to run so as to switch the two water pumps 5 to run at regular time. The water temperature sensor 8 transmits a temperature signal to the controller 7 after detecting the temperature of the refrigerant, the controller 7 sends a voltage signal to the frequency converter 73 after receiving the temperature signal, the frequency converter 73 controls the speed of the outer fan 11 through the first contactor 71, and the first contactor 71 can control the start and stop of the outer fan 11 when the controller 7 sends a switching signal to the first contactor 71.
Claims (9)
1. The utility model provides an air condensing and heat exchanging system which characterized in that: the dry cooling device comprises a dry cooling device (1), an outer fan (11), a plate type heat exchanger (2), an output pipeline (3) arranged between an outlet of the dry cooling device (1) and a refrigerant inlet of the plate type heat exchanger (2), an input pipeline (4) arranged between a refrigerant outlet of the plate type heat exchanger (2) and an inlet of the dry cooling device (1), and a water pump (5).
2. The outdoor unit of an air conditioner of claim 1, wherein: the water supply system also comprises a water replenishing tank (6) and a water supply pipe (61) of which one end is communicated with the water replenishing tank (6) and the other end is communicated with the input pipeline (4).
3. The outdoor unit of an air conditioner of claim 2, wherein: the water replenishing tank (6) is provided with a water replenishing pipe (62), a water draining opening (63) and a water draining valve (64) for opening and closing the water draining opening (63).
4. The outdoor unit of an air conditioner of claim 1, wherein: the water pumps (5) are arranged on the output pipeline (3), and the number of the water pumps (5) is two and the two water pumps are connected in parallel.
5. The outdoor unit of an air conditioner of claim 1, wherein: the air conditioner comprises two dry coolers (1), one end of the input pipeline (4) is divided into two input branch pipes (41), and the input branch pipes (41) are respectively connected with the two dry coolers (1); one end of the output pipeline (3) is divided into two output branch pipes (31), and the output branch pipes (31) are respectively connected with the two dry coolers (1).
6. The outdoor unit of an air conditioner of claim 5, wherein: the input branch pipe (41) is provided with a first valve (411), and the output branch pipe (31) is provided with a second valve (311).
7. The outdoor unit of an air conditioner of claim 6, wherein: the first valve (411) and the second valve (311) are both ball valves.
8. The condensing and heat exchanging system of an outdoor unit of an air conditioner of claim 1, 4 or 5, wherein: the water pump control system is characterized by further comprising a controller (7), a water temperature sensor (8) used for detecting the temperature of a refrigerant and electrically connected with the controller (7), a time sensor (9) electrically connected with the controller (7), a frequency converter (73) electrically connected with the controller (7), a first contactor (71) connected with the frequency converter (73) and the controller (7) and used for controlling the outer fan (11), and a second contactor (72) connected with the controller (7) and used for controlling the water pump (5).
9. The outdoor unit of an air conditioner of claim 8, wherein: the cold medium circulating in the dry cooler (1), the output pipeline (3), the input pipeline (4) and the plate heat exchanger (2) is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920765677.2U CN209944575U (en) | 2019-05-24 | 2019-05-24 | Condensing and heat exchanging system of outdoor unit of air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920765677.2U CN209944575U (en) | 2019-05-24 | 2019-05-24 | Condensing and heat exchanging system of outdoor unit of air conditioner |
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| CN209944575U true CN209944575U (en) | 2020-01-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280640A (en) * | 2021-05-19 | 2021-08-20 | 中国电子科技集团公司第四十八研究所 | Automatic ash removal system of vanadium nitrogen alloy sintering equipment flue |
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2019
- 2019-05-24 CN CN201920765677.2U patent/CN209944575U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280640A (en) * | 2021-05-19 | 2021-08-20 | 中国电子科技集团公司第四十八研究所 | Automatic ash removal system of vanadium nitrogen alloy sintering equipment flue |
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