阅读说明：本技术 一种可生产淡水的太阳能吸收式制冷装置 (Solar absorption type refrigerating device capable of producing fresh water ) 是由 黄宝永 *** *** 于 2019-10-08 设计创作，主要内容包括：本发明利用吸收式制冷技术与太阳能集热盘管原理,将两者相互起来,省略掉了两者之间的能量转换步骤,用太阳能加热技术和吸收式制冷技术,将无序低级的热能转换成可制冷的能量,降低了资源浪费以及运营的支出,提高了能源利用效率,降低了碳排放。并且将整个制冷系统所产生的废热用于生产淡水以及粗海盐,在提能了能源二次利用效率的同时生产出粗海盐及可供人食用的淡水,特别适用于淡水资源以及电能缺乏的落后地区和岛屿,可正常满足该类地区环境的大部分生活所需。(The solar energy refrigeration system and the solar energy heat collection coil pipe have the advantages that the absorption refrigeration technology and the solar energy heat collection coil pipe principle are utilized, the energy conversion step between the absorption refrigeration technology and the solar energy heat collection coil pipe is omitted, the disordered low-grade heat energy is converted into the energy capable of being refrigerated by the solar energy heating technology and the absorption refrigeration technology, the resource waste and the operation expenditure are reduced, the energy utilization efficiency is improved, and the carbon emission is reduced. Waste heat generated by the whole refrigeration system is used for producing fresh water and crude sea salt, the energy secondary utilization efficiency is improved, and simultaneously the crude sea salt and the fresh water which can be eaten by people are produced, so that the system is particularly suitable for laggard areas and islands where fresh water resources and electric energy are lacked, and can normally meet most living needs of environments in the areas.)

1. A solar energy absorption type refrigerating device capable of producing fresh water is characterized in that a solar heat collecting coil is a heat collecting coil made of double-square-shaped semi-open glass, the bottom of the solar heat collecting coil is provided with an opening, the production cost is reduced, the heat absorbing area is increased, and the bottom of the solar heat collecting coil is easy to maintain and overhaul. The glass tube is divided into an inner layer and an outer layer, and meanwhile, in order to improve the heat preservation efficiency and the heat absorption efficiency, the inner layer and the outer layer of the glass tube are vacuumized and the inner layer and the outer layer of the glass tube are provided with heat absorption coatings, so that the heat absorption capacity of the glass tube is improved.

2. A solar energy absorption type refrigerating device capable of producing fresh water is characterized in that a solar energy heat collecting coil pipe and an absorption type refrigerating machine are connected with each other through a heat exchange coil pipe, heat generated by the solar energy heat collecting coil pipe through absorbing solar energy is utilized in a refrigerating technology, heat energy emission is reduced, and energy utilization efficiency is improved.

3. A solar energy absorption refrigerating device capable of producing fresh water is characterized in that a heat exchange barrel concentrates a whole generator and an evaporator together, so that the mixing speed of concentrated solution and secondary refrigerant is increased, the circulation time is shortened, and the refrigerating efficiency of a whole refrigerating system is improved.

A solar energy absorption type refrigerating device capable of producing fresh water is characterized in that a seawater condensation barrel is combined with a fresh water generator, waste heat generated by the whole system is absorbed, and simultaneously, the waste heat is utilized to distill seawater to generate crude sea salt and edible fresh water. The waste heat emission is reduced, and the energy is recycled for the second time.

Technical Field

The invention belongs to a solar absorption refrigerating device, and particularly relates to a solar absorption refrigerating device capable of producing fresh water.

Background

With the advancement of technology, refrigeration plays an increasingly important role in everyday life as well as in industrial applications. Refrigeration is a considerable responsibility in food and medicine preservation in daily life. In industrial applications, refrigeration is an essential role in the building, smelting and petroleum industries. In the present refrigerating unit, the refrigeration technology is mainly compressor refrigeration, the traditional refrigeration technology uses a compressor to refrigerate, the refrigerant can be used in the refrigeration process, the refrigerant is mainly Freon refrigerant at present, and the refrigerant can cause great damage to the environment after being discarded, so that ozone holes are caused. The compressor refrigerating device has the advantages of large volume, complex structure, low energy utilization efficiency and high maintenance cost, and the machine body vibration can cause irreparable damage to buildings.

According to the defects of the traditional refrigerating device, a solar absorption refrigerating device capable of producing fresh water is provided, has stable functions and low maintenance cost, and can be used for lagging areas and islands with weak power supply and fresh water shortage.

Advantages of the invention

The absorption refrigeration device capable of utilizing solar heat is stable in structure, low in maintenance cost and easy to put into practical use.

The absorption refrigeration device capable of utilizing solar heat is high in energy utilization efficiency and multiple in energy cycle times, and can fully achieve the purposes of energy conservation and emission reduction.

The absorption refrigeration device capable of utilizing solar heat is characterized in that the absorber and the evaporator are accommodated in the heat exchange barrel together, so that the heat exchange efficiency is high, the circulation frequency of the secondary refrigerant is high, and the refrigeration effect is good.

The absorption refrigeration device capable of utilizing solar heat is characterized in that a set of vacuumizing device is additionally arranged outside the whole refrigeration system to vacuumize the whole refrigeration system, so that the latent heat of vaporization required by the secondary refrigerant converted from liquid to gas is reduced, and the supercooling degree of the whole refrigeration system is improved.

Disclosure of Invention

The invention mainly provides an absorption type refrigeration technology by utilizing solar energy. According to the principle of absorption refrigeration, an absorption refrigeration device capable of utilizing solar heat is provided, and edible fresh water and inedible crude sea salt are produced by recovering condensation heat and evaporating seawater. Fresh water and crude salt are produced while refrigeration is realized, the cyclic utilization of energy is realized, the production cost is reduced, and the waste of energy is avoided.

Now, a technical scheme is provided for solving the technical problems

The invention mainly adopts the technical scheme that: a solar absorption type refrigerating device capable of producing fresh water mainly comprises a solar heat collecting coil pipe, a seawater condensation barrel, an evaporator, a generator, a heat exchanger, an automatic vacuumizing device, a heat exchange barrel, a vacuum electric pump, a solution electric pump, a secondary refrigerant electric pump, an oil filtering pipe, a bypass valve, a regulating valve, a check valve, an electric regulating valve, a seawater cooling barrel, a forced cooling air cooler, a salt screening net and the like.

Wherein the seawater condensation barrel is connected with the seawater cooling barrel, the heat exchange barrel is connected with the generator and the seawater condensation barrel, and the automatic vacuum pumping device is connected with the generator, the seawater condensation barrel and the heat exchange barrel. The heat exchanger is interconnected with the generator and the heat exchange tub.

The solar absorption refrigeration device capable of producing fresh water further comprises a solution electric pump, a secondary refrigerant electric pump and a vacuum electric pump. The solution is transported into the automatic vacuum pumping device from the heat exchange barrel by the solution electric pump, then is transported into the heat exchanger by vacuum pumping, is shunted into the heat exchange barrel by the heat exchange rear part, and the rest flows into the generator. The secondary refrigerant is heated by the evaporator and then sent into the heat exchange barrel again by the secondary refrigerant electric pump to absorb heat again, and the secondary refrigerant and the solution are mixed with each other in the heat exchange barrel to generate a dilute solution so as to be used for next refrigeration. The generator is provided with a pipeline which is mutually connected with the solar heat collecting coil pipe, and the dilute solution in the generator is heated by the heat collected by the solar heat collecting coil pipe, so that the dilute solution is heated to generate a concentrated solution and secondary refrigerant steam. The heated secondary refrigerant steam flows into a seawater condensation barrel through a pipeline, and after condensation, a large amount of heat is released to evaporate the seawater for cooling, so that the seawater is evaporated to become fresh water steam and crude sea salt. The secondary refrigerant steam is cooled by the seawater in the seawater condensation barrel, then changed into secondary refrigerant liquid again, flows into the evaporator, is cooled for a required cooling object, is changed into a high-temperature gas-liquid mixture again, then flows into the heat exchange barrel, is mixed with the concentrated rain solution in the absorber in the heat exchange barrel, and is changed into the dilute solution again to carry out the next refrigeration cycle.

The automatic vacuum pumping device is characterized in that each component in the whole device is connected with each other, air in the whole refrigeration system is pumped out, the whole system is in a vacuum state, and evaporation of secondary refrigerant and purification of dilute solution are facilitated.

The forced cooling air cooler is installed on the upper portion of the seawater condensation barrel, so that secondary refrigerant can be cooled better, the forced cooling air cooler is connected with a ventilating pipeline in a chained mode, evaporated fresh water steam is conveyed to the fresh water collecting device, in the transportation process, the steam can be cooled in the pipeline and becomes fresh water liquid, and finally the fresh water liquid flows into the fresh water collecting device.

The invention has the following technical advantages: the seawater is utilized to cool the refrigerating device, and the heat emitted by the seawater condensation barrel is absorbed by the seawater, so that fresh water and crude sea salt are produced. The function of producing fresh water is realized while the refrigeration and temperature reduction are realized. The waste of energy is reduced, the secondary utilization of energy is realized, and the operation cost is reduced.

The seawater used for cooling is introduced into the seawater condensation barrel, and after the seawater is absorbed by the heat emitted by the seawater condensation barrel, the forced air is forced to circulate by the forced cooling air cooler, so that the evaporation speed is increased, the cooling of the refrigerating device is facilitated, and the supercooling degree of the refrigerating device is improved.

The invention has stable structure, low maintenance cost and simple operation flow, and is particularly suitable for the lagging areas with insufficient electric energy supply and isolated islands and ships.

It should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Drawings

FIG. 1 is a schematic diagram of a solar absorption refrigeration unit for producing fresh water according to the present invention;

fig. 2 is a schematic perspective view of the solar heat collecting coil according to the present invention.

Fig. 3 is a schematic perspective view of a seawater condensing barrel according to the present invention.

In the figure: 1 vacuum absorption pipeline, 2 electromagnetic control valve, 3 high temperature hot water valve, 4 manual control standby, 5 low temperature hot water outlet, 6 air circulation valve A, 7 air circulation valve B, 8 air outlet, 9 oil filter pipe, 10 check valve, 11 automatic vacuum pumping device, 12 air pressure display, 13 heat exchange barrel, 14 condensation pipeline, 15 evaporator, 16 condensation water inlet, 17 absorber, 18 secondary refrigerant decompression U-shaped pipe, 19 evaporator interface, 20 secondary refrigerant pipeline control valve, 21 solution sprayer, 22 secondary refrigerant pipeline, 23 fresh water outlet, 24 condensation coil, 25 secondary refrigerant spray outlet, 26 secondary refrigerant steam pipeline, 27 vacuum valve C, 28 generator, 29 high temperature secondary refrigerant inlet, 30 low temperature secondary refrigerant outlet, 31 fresh water distillation pipeline, 32 screen salt net, 33 seawater inlet, 34 cooling water tank, 35 low temperature water inlet, 36 heat preservation water tank, 37 high temperature water outlet, 38 heat collecting coil, 39 solution electric pump and 40 refrigerating medium electric pump.

Detailed Description

The low-temperature low-pressure secondary refrigerant liquid is sprayed on the evaporator through the secondary refrigerant spraying port, and becomes overheated low-heat low-pressure secondary refrigerant liquid after absorbing heat, the low-heat low-pressure secondary refrigerant liquid is pumped by the solution electric pump and sprayed on the evaporator through the secondary refrigerant spraying port again, and at the moment, the low-heat low-pressure state of the secondary refrigerant liquid is changed into the medium-heat low-pressure state. In the secondary spraying process of the secondary refrigerant liquid, the secondary refrigerant liquid is fully contacted with concentrated solution in the heat exchange barrel, after being contacted and mixed with each other to become dilute solution, one part of the dilute solution is pumped to a secondary refrigerant spraying port by a secondary refrigerant electric pump to be continuously sprayed on an evaporator to absorb heat, the other part of the dilute solution is pumped to an automatic vacuum pumping device by a solution electric pump to be conveyed to a heat exchanger after being strongly vacuumized to absorb a part of heat after being reheated, at the moment, the medium-heat and low-pressure liquid in the dilute solution is changed into medium-heat and medium-pressure gas-liquid mixture, the medium-heat and medium-pressure dilute solution gas-liquid mixture is pumped to continuously flow into a generator and is subjected to heat exchange with high-temperature hot water in the generator to absorb heat from the high-temperature hot water, the secondary refrigerant in the dilute solution has gas-liquid mixture changed into high-temperature and high-pressure steam, and flows into a seawater condensation barrel through, the high-temperature and high-pressure secondary refrigerant steam is changed into a low-temperature and medium-pressure secondary refrigerant gas-liquid mixture, the low-temperature and medium-pressure secondary refrigerant gas-liquid mixture is pumped and sent, the low-temperature and medium-pressure secondary refrigerant gas-liquid mixture continuously flows into the secondary refrigerant pressure reduction U-shaped pipe, the secondary refrigerant is reduced in pressure by the U-shaped pipe, the low-temperature and medium-pressure secondary refrigerant liquid is changed into low-temperature and low-pressure secondary refrigerant liquid, the low-temperature and medium-pressure secondary refrigerant liquid flows into the evaporator, and the low-temperature and medium-pressure secondary refrigerant.

In the process, the vacuum absorption pipeline is connected with the generator, the automatic vacuumizing device and the heat exchange barrel to vacuumize the whole refrigerating system, so that the whole system is in a vacuum state, the latent heat of vaporization required by the change of the secondary refrigerant liquid into the secondary refrigerant steam is reduced, the supercooling degree of the whole system is improved, the work required by refrigeration is reduced, and the purposes of energy conservation and emission reduction are achieved.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.