CN87205861U

CN87205861U - Absorptive refrigerating device with tubular element-type molecular sieve

Info

Publication number: CN87205861U
Application number: CN198787205861U
Authority: CN
Inventors: 吴键
Original assignee: East China Institute of Technology
Current assignee: East China Institute of Technology
Priority date: 1987-03-28
Filing date: 1987-03-28
Publication date: 1987-11-04

Abstract

The utility model relates to a novel absorptive refrigerating device molecular sieve, comprising a molecular sieve container, an evaporative condenser, a steam closed tube and an adsorbing agent. The utility model is characterized in that the molecular sieve container adopts a tubular unit structure. The adsorbing agent adopts molecular sieve initial powder which has the distinctive features of good heat transfer performance, short periodicity, high refrigeration duty of the molecular sieve of the unit weight, refrigeration by means of the exhaust heat and energy saving. The cold quantity of 90-140 watts (80-120 kcal per hour) can be provided through per shaft horsepower of the exhaust heat discharged by an oil engine. The utility model can be applied to various occasions of the exhaust heat refrigeration, in particular to the refrigeration by means of the exhaust heat discharged by an internal-combustion engine inboard for the refreshment or the cold source supply for an air conditioner in a passenger ship.

Description

Absorptive refrigerating device with tubular element-type molecular sieve

The utility model relates to a kind of fresh-keeping or aircondition that utilizes utilizing waste heat for refrigeration, particularly a kind of tubular units formula molecular sieve adsorption refrigerating plant.

The molecular sieve adsorption refrigeration has been studied for many years in the world, all be that molecular sieve is closed in the container, it periodically heats outer bound pair and cools off, utilize molecular sieve that the adsorption capacity of water is non-linear relation according to temperature, when being heated, deviate from moisture content, condensation in condenser that sieve container communicates in, and when molecular sieve is cooled, absorb moisture content, in closed container, cause low absolute pressure (1～2 millimetres of mercury or lower), make the water sweat cooling under low pressure in the former condenser.But fail to form formal product always, its reason is: in (1) sieve container with granular or the filling of strip molecular sieve (for example patent 1807643WPI ACC NO:80-H5023C/35 Tchernev D.I. of U.S. Te Qiliefu), but the thermal conductivity of this molecular sieve is very poor, make heating very long with the cycle of cooling, so round-the-clock basis is the volume heaviness.(2) sieve container all adopts flat structure, but internal system pressure is very low, and the bearing strength of slab construction is bad, and volume can not be done very greatly, and institute's dress molecular sieve is limited, and cold is also limited.

The purpose of this utility model is the problem that exists at prior art, and a kind of good heat-transfer is provided, and cycle period is short, and the molecular sieve adsorption refrigerating plant of conversion cold easily.

The utility model is achieved in that it comprises sieve container, evaporative condenser, the steam cross over pipe of UNICOM's sieve container and evaporative condenser, and adsorbent, it is characterized in that sieve container adopts tubular units formula structure, adsorbent adopts molecular screen primary powder.Specifically, sieve container is to be welded on side by side on the steam cross over pipe with several pipes, and the other end of cross over pipe and evaporative condenser welding form an independent unit that seals, one coaxial cylindrical shape fine-structure mesh is arranged, at the annular space filling molecular screen primary powder of pipe with net at every pipe center.The heat conductivility of molecular screen primary powder is much larger than granular molecular sieve, and heating and cooling cycle shorten (can shorten to 10～20 minutes) greatly, have improved the refrigeratory capacity of per kilogram molecular sieve in the unit interval.The unit associations of different numbers is assembled, can adapt to different cold requirements.

The utility model compared with prior art, its distinguishing feature is a good heat-transfer, cycle period is short, and can adapt to the requirement of different colds easily.Can be used for various exhaust heat refrigerating occasions, be particularly useful for marine engine exhaust waste heat refrigeration with fresh-keeping, or the passenger steamer cold source of air conditioning is provided.

The utility model concrete structure is provided by following examples and accompanying drawing thereof.

Accompanying drawing is the structural representation of tubular units formula molecular sieve adsorption refrigerating plant of the present utility model.

Below in conjunction with accompanying drawing the utility model further is described in detail.

Press shown in the figure, the tubular sieve container that one row are arranged in parallel, one coaxial cylindrical shape fine-structure mesh 3 is arranged in the pipe 1, molecular screen primary powder 2 fillings are between pipe 1 and fine-structure mesh 3, these pipes 1 that molecular screen primary powder 2 is housed all are welded on the cross over pipe 4, deaeration, and filling with certain water gaging, welded seal then as refrigeration working medium.When pipe 1 was heated desorption, water vapour entered steam cross over pipe 4 from the central passage of fine-structure mesh 3, be pooled in the evaporative condenser 5, and condensation on water pipe 6, and lodge in the bottom of evaporative condenser 5.When pipe 1 is cooled, water vapour is caused low-pressure in the evaporative condenser 5 by molecular sieve adsorption, water evaporates therein, from water pipe 6 absorption refrigerations, steam and heat all need only pass a very thin molecular sieve layer (promptly managing the poor of inside radius and fine-structure mesh radius), the diesel exhaust gas waste heat of every shaft horsepower can obtain the refrigeration work consumption (0 ℃ of refrigerating fresh-keeping takes off limit, the air-conditioning capping) of 90～140 watts (80～120 kilocalories/time).

Claims

1, a kind of tubular units formula molecular sieve adsorption refrigerating plant, it comprises sieve container, evaporative condenser 5, the steam cross over pipe 4 of UNICOM's sieve container and evaporative condenser 5, and adsorbent is characterized in that sieve container adopts tubular units formula structure, be welded on side by side on the steam cross over pipe 4 with several pipes 1, one coaxial tubular fine-structure mesh 3 is arranged in the pipe 1, and adsorbent adopts molecular screen primary powder 2, and molecular screen primary powder 2 is filled between pipe 1 and the fine-structure mesh 3.