CN210463632U

CN210463632U - Novel environment-friendly cooling and heating machine using water as refrigerant

Info

Publication number: CN210463632U
Application number: CN201920954928.1U
Authority: CN
Inventors: 宋黎; 张红岩; 刘明军; 苏盈贺; 马士鑫; 李伦; 李伟; 纪晓亮; 宋媛媛; 钱锟; 马思图; 张攀; 孔庆阳
Original assignee: Panasonic Appliances Air Conditioning and Refrigeration Dalian Co Ltd
Current assignee: Panasonic Appliances Air Conditioning and Refrigeration Dalian Co Ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-05-05
Anticipated expiration: 2029-06-24

Abstract

The utility model belongs to the technical field of refrigeration plant, a use water novel environmental protection cold and warm machine as refrigerant is related to, drench the system including evaporimeter, condenser, vapor compressor, canned motor pump, automatic evacuating device, choke valve and drop to water as the refrigerant, fundamentally solves the refrigerant to atmospheric environment's influence and greenhouse effect scheduling problem, in aspects such as environmental protection, economic nature and safety and stability, has other refrigerants to have the advantage that can compare with it. In the running process of the unit, external cold water is cooled by low-temperature refrigerant water which is obtained from the condenser after depressurization and throttling, so that cold water with lower temperature is prepared for refrigeration. The outside warm water absorbs a large amount of condensation heat released in the process of liquefying and condensing the refrigerant vapor to prepare the warm water with higher temperature for heating, sanitary hot water and other process systems. In the process, other high-grade heat sources are not required to be additionally introduced to provide heat energy, so that the energy consumption is reduced, the energy utilization rate is improved, and the efficient utilization of condensation heat is realized.

Description

Novel environment-friendly cooling and heating machine using water as refrigerant

Technical Field

The utility model belongs to the technical field of refrigeration plant, concretely relates to use novel environmental protection cooling and heating machine of water as refrigerant.

Background

With the development of social economy and the advancement of human civilization, the demand of human beings on substances is continuously increased, and the world is facing a series of major problems of gradual resource shortage, increasingly serious energy consumption and the like. Meanwhile, the rapid development of the world economy directly or indirectly causes atmospheric ozone layer destruction, global warming, glacier thawing, sea level rising and other climatic phenomena. At present, the harm caused by reduction of ozone in the atmospheric ozone layer is generally concerned by the international society, and in order to protect the ozone layer from further damage and better protect the earth on which human beings depend, actions for protecting the ozone layer have been carried out internationally for many years, and all countries in the world are strived to pass indexes specified in the protocol, such as 'project on protection of the ozone layer', 'Vienna convention for protection of the ozone layer', and 'Montreal protocol for depletion of substances in the ozone layer'.

With the rapid development of the refrigeration and air-conditioning industry, the demand of refrigerants in the field is huge every year, and the use of chlorofluorocarbon artificial synthetic refrigerants can aggravate the damage to the atmospheric ozone layer and promote the greenhouse effect. Although the research on the substitution of refrigerants by human beings has never been stopped, and a large number of relatively safe and reliable substitutes have been developed, even some of the substitutes have little damage to the ozone layer, the substitutes still promote the greenhouse effect, and the further development of the refrigerants is severely restricted. Therefore, the development of new, efficient and environmentally friendly refrigerants has become a consensus throughout the refrigeration field. As a natural and easily-obtained refrigeration medium, water has the characteristics of environmental protection, economy, stability and the like, does not generate negative influence on the atmospheric ozone layer, does not cause greenhouse effect, has the advantages that other refrigerants cannot be compared with the air ozone layer in the energy-saving field and the refrigeration industry, and can be considered as the most ideal refrigeration working medium. At present, the refrigerating machines using water as refrigerant mainly have two forms of steam jet type refrigeration and lithium bromide absorption type refrigeration, and the two types of refrigeration are widely used and accumulate a lot of experience of successful operation. Therefore, refrigerators using water as a refrigerant in other refrigeration forms will be important issues for development and research in the future refrigeration field.

SUMMERY OF THE UTILITY MODEL

The utility model provides an use water novel environmental protection cooling and heating machine as refrigerant, the unit uses water as the refrigerant, when guaranteeing safe and reliable, green, can provide air conditioner refrigeration or heating, sanitary hot water and the required heat source of process systems etc. according to different demands.

The utility model provides a technical scheme that its technical problem adopted provides an use water novel environmental protection cold and warm machine as refrigerant, include: the system comprises an evaporator, a condenser, a water vapor compressor, a shield pump, a throttle valve and a dripping system; the evaporator comprises a channel A and a channel B, wherein the channel A is respectively connected with a cold water inlet and a cold water outlet of the chilled water system; a refrigerant self-circulating water input end is arranged above the channel B, a refrigerant self-circulating water output end is arranged below the channel B, the refrigerant self-circulating water output end is connected to an inlet of a shielding pump through a pipeline, an outlet of the shielding pump is connected to the refrigerant self-circulating water input end, and the refrigerant self-circulating water input end is connected to a dripping system arranged above the evaporator channel B; a refrigerant condensed water input end and a refrigerant steam output end are also arranged on two sides of the channel B; the condenser comprises a channel C and a channel D, and the channel D is respectively connected with a warm water inlet and a warm water outlet of the warm water system; a refrigerant steam input end and a refrigerant condensed water output end are respectively arranged on two sides of the channel C; the refrigerant steam input end is connected to the outlet of the water vapor compressor through a pipeline, and the inlet of the water vapor compressor is connected to the refrigerant steam output end of the evaporator channel B; the refrigerant water condensation output end is connected to one side of the throttling valve, and the other side of the throttling valve is connected to the refrigerant water condensation input end of the evaporator channel B.

Furthermore, an automatic vacuum pumping device is arranged above the condenser channel C.

Furthermore, the warm water inlet and the warm water outlet are respectively connected with a heating pipeline, a domestic water pipeline or a process system pipeline.

Furthermore, the cold water inlet and the cold water outlet are respectively connected with an air conditioner chilled water circulation pipeline or a cold pipeline for a process system.

Furthermore, the cold and heat sources introduced into the channel A of the evaporator and the channel D of the condenser are water, or external air, or heat conduction oil, or steam, or other residual waste heat generated by a process system.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the circulation process, the refrigerant steam of the evaporator is compressed and heated by the water vapor compressor, and the heated refrigerant steam is directly introduced into the condenser to heat the warm water in the condenser pipe. The condensed high-temperature high-pressure liquid water enters the evaporator through the throttle valve for cooling, is vaporized and evaporated in the evaporator, and absorbs the heat of cold water of an external chilled water system, so that low-temperature cold water is prepared. On the other hand, the process of condensing the refrigerant steam in the condenser releases a large amount of condensation heat, and the condensation heat is absorbed by the warm water, so that the temperature of the warm water is increased, and the warm water with higher taste is obtained. When the unit is used, the cold water required by air-conditioning refrigeration or process system cooling can be prepared according to different energy conditions and requirements of users, and the warm water required by winter heating, sanitary hot water and process heating systems can also be prepared.

2. The utility model discloses earlier will come from the heat promotion of evaporimeter cryogen steam through vapor compressor, rethread condenser is with cryogen steam liquefaction condensation to the condensation heat that releases in the condensation process is whole to be carried out recycle, need not additionally to input other high-grade heat sources, thereby reaches the purpose of refrigeration or heating. The process reduces energy consumption, improves energy utilization rate, and realizes high-efficiency utilization of condensation heat.

3. The utility model relates to an use novel environmental protection cold and warm machine of water as refrigerant to water has advantages such as green, stability height and low-priced easily acquireing as the refrigerant, and fundamentally solves the refrigerant to atmospheric environment's influence and greenhouse effect scheduling problem, in aspects such as environmental protection, economic nature and safety and stability, has other refrigerants to have the advantage that can compare with it.

4. The utility model discloses be provided with the canned motor pump between refrigerant self-circulating water output and refrigerant self-circulating water input to constitute one set of independent moving refrigerant water self-circulating system. The system can repeatedly suck the refrigerant water which enters the evaporator and is not flashed from the refrigerant self-circulation water output end to the refrigerant self-circulation water input end, and then the refrigerant water is sprayed onto the cold water pipe through the dripping system to absorb the heat of the cold water from the chilled water system, so that the low-temperature cold water is prepared. The dripping system is used for dripping the refrigerant water on the surface of the cold water pipe more uniformly, so that the liquid film dispersion amount under different working conditions is met, and the heat exchange coefficient of the heat exchange pipe is enhanced.

5. The utility model discloses set up automatic evacuating device in condenser passageway C's top for the incondensable gas in the extraction barrel guarantees the absolute vacuum state of unit, guarantees the high-efficient operation of system.

Drawings

Fig. 1 is a schematic structural diagram of the novel environment-friendly cooling and heating machine using water as a refrigerant.

In the figure: 1. the system comprises an evaporator, a condenser, a water vapor compressor, a shielding pump, a vacuum pumping device, a throttle valve, a drip system, a channel A, a channel B, a refrigerant vapor output end, a refrigerant condensate input end, a refrigerant self-circulating water output end, a refrigerant self-circulating water input end, a channel D, a channel C, a channel 16, a warm water outlet, a warm water inlet, a cold water outlet, a cold water inlet, a cold water outlet, a cold water condensate output end and a refrigerant vapor input end, wherein the evaporator, the condenser, the water vapor compressor, the shielding pump.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

As shown in fig. 1, a novel environment-friendly cooling and heating machine using water as a refrigerant comprises: the system comprises an evaporator 1, a condenser 2, a water vapor compressor 3, a shield pump 4, a throttle valve 6 and a dripping system 7; the evaporator 1 comprises a channel A8 and a channel B9, wherein the channel A8 is respectively connected with a cold water inlet 19 and a cold water outlet 18 of a chilled water system; a refrigerant self-circulation water input end 13 is arranged above the channel B9, a refrigerant self-circulation water output end 12 is arranged below the channel B9, the refrigerant self-circulation water output end 12 is connected to an inlet of the canned motor pump 4 through a pipeline, an outlet of the canned motor pump 4 is connected to the refrigerant self-circulation water input end 13, and the refrigerant self-circulation water input end 13 is connected to a dripping system 7 arranged above the channel B9 of the evaporator 1; a refrigerant condensed water input end 11 and a refrigerant steam output end 10 are also arranged on two sides of the channel B9; the condenser 2 comprises a channel C15 and a channel D14, the channel D14 is respectively connected with a warm water inlet 17 and a warm water outlet 16 of a warm water system; a refrigerant steam input end 21 and a refrigerant condensed water output end 20 are respectively arranged at two sides of the channel C15; the refrigerant steam input end 21 is connected to the outlet of the water vapor compressor 3 through a pipeline, and the inlet of the water vapor compressor 3 is connected to the refrigerant steam output end 12 of a channel B9 of the evaporator 1; the refrigerant condensation water output end 20 is connected to one side of the throttle valve 6, and the other side of the throttle valve 6 is connected to the refrigerant condensation water input end 11 of the channel B9 of the evaporator 1.

Further, an automatic vacuum pumping device 5 is arranged above the channel C15 of the condenser 2.

Further, the warm water inlet 17 and the warm water outlet 16 are respectively connected with a heating pipeline, a domestic water pipeline or a process system pipeline.

Further, the cold water inlet 19 and the cold water outlet 18 are respectively connected with an air conditioner chilled water circulation pipeline or a cold pipeline for a process system.

When the unit operates, low-temperature low-pressure refrigerant steam in the evaporator 1 is compressed by the water vapor compressor 3, the temperature and the pressure of the gas are simultaneously increased, high-temperature high-pressure gas is formed and enters the condenser 2, and warm water in the condenser 2 is heated. The temperature of the condensed and released refrigerant steam is reduced to form medium-temperature high-pressure refrigerant water, the refrigerant water with the reduced temperature and pressure returns to the evaporator 1 for flashing under the action of the throttle valve 6 on the refrigerant condensation water pipeline, the heat of cold water in a chilled water system is absorbed, and the cold water is cooled by the low-temperature refrigerant water from the condenser 2 after the refrigerant steam is reduced in pressure and throttled in the evaporator 1, so that the cold water with lower temperature is obtained. On the other hand, the warm water absorbs the condensation heat discharged from the condenser 2 to raise the temperature of the warm water, resulting in a higher temperature warm water. The above processes are repeated to complete the refrigeration or heating cycle.

Under the operation mode of the unit under the refrigeration working condition, if cold water at 20 ℃ is prepared, the refrigeration COP of the unit can reach 4-64 according to the difference of the inlet temperature and the heat of warm water; and under the operating mode of the heating working condition, according to different cold water inlet temperatures, the warm water can be prepared to reach the temperature of more than 90 ℃, the COP range of heating is wider, and the efficiency is higher. The operation process does not need to additionally introduce other high-grade heat sources to provide heat energy, reduces energy consumption, improves energy utilization rate and realizes efficient utilization of condensation heat.

In this embodiment, the cold and heat sources introduced into the channel A8 of the evaporator 1 and the channel D14 of the condenser 2 are water, and other cold and heat sources can be adopted according to different needs and limited resources of users, such as: outside air, heat transfer oil, steam, residual waste heat generated by a process system and the like.

The above description is only the specific implementation manner of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the design of the present invention within the technical scope of the present invention.

Claims

1. A novel environment-friendly cooling and heating machine taking water as a refrigerant is characterized in that: the method comprises the following steps: the system comprises an evaporator (1), a condenser (2), a water vapor compressor (3), a shield pump (4), a throttle valve (6) and a dripping system (7); the evaporator (1) comprises a channel A (8) and a channel B (9), wherein the channel A (8) is respectively connected with a cold water inlet (19) and a cold water outlet (18) of a chilled water system; a refrigerant self-circulation water input end (13) is arranged above the channel B (9), a refrigerant self-circulation water output end (12) is arranged below the channel B (9), the refrigerant self-circulation water output end (12) is connected to an inlet of the shielding pump (4) through a pipeline, an outlet of the shielding pump (4) is connected to the refrigerant self-circulation water input end (13), and the refrigerant self-circulation water input end (13) is connected to a dripping system (7) arranged above the channel B (9) of the evaporator (1); a refrigerant condensed water input end (11) and a refrigerant steam output end (10) are also arranged on two sides of the channel B (9); the condenser (2) comprises a channel C (15) and a channel D (14), and the channel D (14) is respectively connected with a warm water inlet (17) and a warm water outlet (16) of a warm water system; a refrigerant steam input end (21) and a refrigerant condensed water output end (20) are respectively arranged at two sides of the channel C (15); the refrigerant steam input end (21) is connected to the outlet of the water vapor compressor (3) through a pipeline, and the inlet of the water vapor compressor (3) is connected to the refrigerant steam output end (10) of the channel B (9) of the evaporator (1); refrigerant water condensation output end (20) is connected to one side of throttle valve (6), and throttle valve (6) other side is connected to refrigerant water condensation input end (11) of evaporimeter (1) passageway B (9).

2. A novel environment-friendly refrigerating and heating machine using water as refrigerant as claimed in claim 1, wherein: an automatic vacuum-pumping device (5) is arranged above the channel C (15) of the condenser (2).

3. A novel environment-friendly refrigerating and heating machine using water as refrigerant as claimed in claim 1, wherein: the warm water inlet (17) and the warm water outlet (16) are respectively connected with a heating pipeline or a domestic water pipeline or a process system pipeline.

4. A novel environment-friendly refrigerating and heating machine using water as refrigerant as claimed in claim 1, wherein: and the cold water inlet (19) and the cold water outlet (18) are respectively connected with an air conditioner chilled water circulation pipeline or a cold pipeline for a process system.

5. A novel environment-friendly refrigerating and heating machine using water as refrigerant as claimed in claim 1, wherein: the cold and heat sources introduced into the channel A (8) of the evaporator (1) and the channel D (14) of the condenser (2) are water or outside air or heat conduction oil or steam or other residual waste heat generated by a process system.