CN113883737A

CN113883737A - Forced supercooling type condensing system

Info

Publication number: CN113883737A
Application number: CN202111304591.8A
Authority: CN
Inventors: 蒋林杰; 牟晓烽; 陈旭; 姚丹红
Original assignee: SHANGHAI COMER MACHINERY CO Ltd
Current assignee: SHANGHAI COMER MACHINERY CO Ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-01-04

Abstract

The invention discloses a forced supercooling type condensing system which comprises a condenser, an evaporator and a compressor, wherein the condenser comprises a condenser shell, the top of the condenser shell is provided with a first air inlet, the bottom of the condenser shell is provided with a liquid outlet pipe, and the liquid outlet pipe comprises a collecting port positioned in the condenser shell and a liquid outlet positioned outside the condenser shell; the first air inlet is connected with one end of the compressor, the liquid outlet pipe is connected with the evaporator, and the evaporator is connected with the other end of the compressor; a condensation pipe group is arranged in the condenser and is vertical to the liquid outlet pipe; the collection port is spaced a distance H1 from the bottom end of the condenser housing that is greater than the distance H2 from the top surface of the bank of condenser tubes to the bottom end of the condenser housing. The forced supercooling type condensing system is simple in structure, a subcooler is not required to be added independently, the probability of vaporization of the refrigerant liquid is reduced, and the problem of vaporization of the refrigerant liquid in the high-pressure liquid pipe in the running process of the water chilling unit is solved.

Description

Forced supercooling type condensing system

Technical Field

The invention relates to a condensing system, in particular to a forced supercooling type condensing system.

Background

In the existing refrigeration system, in order to achieve the supercooling effect, a subcooler of a device specially used for supercooling is generally additionally arranged behind a condenser. The structure type of the super-cooling system is a sleeve type, a spray type or a plate exchange type, and the like, the principle is that cooling water with the temperature lower than that of condensed saturated liquid is used for cooling again, the super-cooling purpose can be achieved only by adding other equipment, and the equipment cost is increased.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a forced supercooling type condensing system.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a forced supercooling type condensing system is characterized in that: the condenser comprises a condenser, an evaporator and a compressor, wherein the condenser comprises a condenser shell, the top of the condenser shell is provided with a first air inlet, the bottom of the condenser shell is provided with a liquid outlet pipe, and the liquid outlet pipe comprises a collecting port positioned in the condenser shell and a liquid outlet positioned outside the condenser shell; the first air inlet is connected with one end of the compressor, the liquid outlet pipe is connected with the evaporator, and the evaporator is connected with the other end of the compressor; a condensation pipe group is arranged in the condenser and is vertical to the liquid outlet pipe; the distance H1 between the collection port and the bottom end of the condenser shell is larger than the distance H2 between the top surface of the condensation tube group and the bottom end of the condenser shell.

Preferably, the condensation pipe group comprises a plurality of mutually parallel condensation pipes, and the extension direction of the condensation pipes is perpendicular to the liquid outlet pipe.

Preferably, a throttling device is arranged between the condenser and the evaporator.

Preferably, the throttling device is an expansion valve or an orifice plate.

The technical scheme can obtain the following beneficial effects: the forced supercooling type condensing system is simple in structure, a subcooler is not required to be added independently, the probability of vaporization of the refrigerant liquid is reduced, and the problem of vaporization of the refrigerant liquid in the high-pressure liquid pipe in the running process of the water chilling unit is solved.

Drawings

Fig. 1 is a schematic structural diagram of a forced supercooling-type condensing system according to a preferred embodiment of the present invention.

Fig. 2 is a schematic view of the structure of the condenser of fig. 1.

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

As shown in fig. 1 and 2, the forced supercooling type condensing system in this embodiment includes an evaporator 1, a compressor 2 and a condenser 3, wherein the condenser 3 includes a condenser casing 31, a first air inlet 32 is provided at the top of the condenser casing 31, a liquid outlet pipe 33 is provided at the bottom of the condenser casing 31, the liquid outlet pipe 33 includes a collection port 331 located inside the condenser casing 31 and a liquid outlet 332 located outside the condenser casing; the first air inlet 32 is connected with one end of the compressor 2, the liquid outlet 332 of the liquid outlet pipe 33 is connected with the evaporator 1, and the evaporator 1 is connected with the other end of the compressor 2. The compressor 2 is used to compress and deliver refrigerant vapor and create a low pressure in the evaporator. In addition, a throttling device 4 is further disposed between the evaporator 1 and the condenser 3, and the throttling device is an expansion valve in the embodiment, and performs throttling and pressure reducing functions on the refrigerant and adjusts the flow rate of the refrigerant entering the evaporator. Of course, in other embodiments, an orifice plate may be used as the throttling means.

The condenser 3 is internally provided with a condensation pipe group 34, the condensation pipe group 34 comprises a plurality of parallel condensation pipes, and the extension direction of the condensation pipes is perpendicular to the liquid outlet pipe 33. The distance H1 from the collection port 331 to the bottom end of the condenser case 31 is greater than the distance H2 from the top 341 of the condenser tube group 34 to the bottom end of the condenser case 31.

The evaporator 1 is a device for outputting cold energy, and the refrigerant absorbs the heat of the cooled object in the evaporator 1, thereby achieving the purpose of preparing the cold energy. The condenser 3 is a device which outputs heat, and the heat absorbed from the evaporator 1 together with the heat converted from the work consumed by the compressor 2 is carried away by the cooling medium in the condenser 3. According to the second law of thermodynamics, the work (electric energy) consumed by the compressor plays a role in compensation, so that the refrigerant continuously absorbs heat from a low-temperature object and releases heat to a high-temperature object, thereby completing the whole refrigeration cycle.

Specifically, the refrigerant exchanges heat with the object to be cooled in the evaporator 1, absorbs the heat of the object to be cooled, and is vaporized into steam. The compressor 1 continuously pumps the vapor generated in the evaporator 1, compresses the vapor, and discharges the compressed vapor at a high pressure, thereby consuming energy. The compressed high-temperature and high-pressure steam is cooled by a normal-temperature cooling medium in the condenser 3 and condensed into high-pressure liquid. The high-pressure liquid is throttled by the expansion valve, and the throttled low-pressure and low-temperature wet steam enters the evaporator 1 to be vaporized again to absorb the heat of the cooled object, and the process is repeated.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. A forced supercooling type condensing system is characterized in that: the condenser comprises a condenser, an evaporator and a compressor, wherein the condenser comprises a condenser shell, the top of the condenser shell is provided with a first air inlet, the bottom of the condenser shell is provided with a liquid outlet pipe, and the liquid outlet pipe comprises a collecting port positioned in the condenser shell and a liquid outlet positioned outside the condenser shell; the first air inlet is connected with one end of the compressor, the liquid outlet pipe is connected with the evaporator, and the evaporator is connected with the other end of the compressor; a condensation pipe group is arranged in the condenser and is vertical to the liquid outlet pipe; the distance H1 between the collection port and the bottom end of the condenser shell is larger than the distance H2 between the top surface of the condensation tube group and the bottom end of the condenser shell.

2. The forced supercooling-type condensing system of claim 1, wherein: the condenser pipe group comprises a plurality of condenser pipes which are parallel to each other, and the extension directions of the condenser pipes are perpendicular to the liquid outlet pipe.

3. The forced supercooling-type condensing system of claim 2, wherein: and a throttling device is arranged between the condenser and the evaporator.

4. The forced supercooling-type condensing system of claim 3, wherein: the throttling device is an expansion valve or an orifice plate.