CN2563520Y

CN2563520Y - Industrial low noise air refrigerator

Info

Publication number: CN2563520Y
Application number: CN 02278301
Authority: CN
Inventors: 钱本睿; 吴力
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-05
Filing date: 2002-07-05
Publication date: 2003-07-30
Anticipated expiration: 2012-07-05

Abstract

The utility model provides an industrial low noise air refrigerator which mainly comprises a swirl chamber, a expansion chamber, an exhaust tube and a silencer, wherein, the portion of the intermediate piece of a vortex tube being arranged inside the expansion chamber is taken as the swirl chamber; a gas vent is arranged on the wall of the swirl chamber and communicated with the expansion chamber; the swirl chamber takes the shape of a circular cylinder; an archimedes helical line is arranged on an inner cavity of the swirl chamber; the direction of the archimedes helical line points at a hot air flow outlet; one end of the vortex tube is communicated with a hot air flow eduction tube and the other end of the vortex tube is communicated with a cold air flow eduction tube through a separate hole; an anechoic chamber is arranged between both ends of the vortex tube and the cold air flow eduction tube and the hot air flow eduction tube; sound damping materials are laid on the internal surface of the anechoic chamber; the included angle theta of the direction of the gas vent on the swirl chamber and the radial direction of a pipe of the swirl chamber is 50 to 65 DEG; the diameter of the separate hole is half of the inside diameter of the swirl chamber; the included angle phi of the compressed air inlet direction of the expansion chamber and the radial direction of a cavity body of the expansion chamber is 50 to 65 DEG.

Description

Industry low noise cold air machine

Technical field

The utility model relates to a kind of industrial low noise cold air machine, is large-scale cooling system.Be mainly used in large enterprise.

Background technology

At present, large enterprise, smelter particularly, the equipment (as instrument, instrument and motor unit etc.) of high-temperature area operation is bigger owing to the conventional cooling method (as air-conditioning, pipe/plate type heat exchanger etc.) that adopts is affected by the external environment, and can not reach effective cooling-down effect, and many electromechanical equipments can't normally move under high temperature (particularly summer) state, even damage, shortened the service life of electromechanical equipment, and the production maintenance cycle shortens, and production cost improves; In addition, the air-conditioning (as cabinet-type air conditioner) that use in the control room of some high-temperature area is owing to be subjected to the influence of dust, pernicious gas, and also shorten greatly service life.Go back the good solution of neither one till now and solve this problem.

The compressed air refrigeration machine that State Intellectual Property Office announces (patent No.: ZL:99237879.6) reached certain effect in actual applications, but because the structural design aspect makes it have the defective of following several respects:

1, the structure of compressed air induction part is comparatively complicated, and bond sites is more, if sealing is bad in the assembling process, very easily causes the gas leakage loss, and air pressure descends, and is unfavorable to refrigeration:

2, this refrigeration machine is comparatively responsive to compressed-air actuated force value, and when being lower than 0.3mpa, refrigeration significantly descends;

3, the unlimited indication of the adjusting of control valve, regulated quantity are difficult for grasping; And careless slightly in operating process, control valve very easily flies out and hurts sb.'s feelings under the impact of air-flow;

4, the hot and cold air floss hole does not have effective silencing means, and in use the noise of Chan Shenging allows operating personnel can't stand (according to test noise＞120dB (A)).Exactly because above-mentioned reason makes this product can't carry out large tracts of land and promotes.

Summary of the invention

The purpose of this utility model is to solve that the high-temperature area operational outfit freezes, cooling, thermostatic control, and thoroughly solve many dirt high temperature, pernicious gas, rainy water etc. can't use conventional air-conditioning under the situation or adopt form cooling such as air-cooled, water-cooled, oil cooling and can not reach the problem of refrigeration etc.Design a kind of industrial low noise cold air machine, have not electricity consumption, not water, without fluorine Lyons,, characteristics such as cost low pollution-free to air.

The technical solution of the utility model: mainly form by minor air cell, expanding chamber, blast pipe, muffler, place part in the expansion chamber as the minor air cell in the vortex tube stage casing, having gas port on the eddy current locular wall communicates with expanding chamber, vortex tube one end communicates with the thermal current delivery line, and the vortex tube other end communicates with the cold airflow delivery line through sorting hole.

Described industrial low noise cold air machine is provided with the anechoic chamber between its vortex tube two ends and the hot and cold air delivery line, and anechoic chamber's inner surface is laid with acoustic material.

Described industrial low noise cold air machine, its minor air cell is cylindrical, on its inner chamber spiral of Archimedes is arranged, the direction of spiral of Archimedes is pointed to the thermal current outlet.

Described industrial low noise cold air machine, in the minor air cell direction of gas port and minor air cell's caliber to angle theta be 50～65 the degree.

Described industrial low noise cold air machine, the diameter of its sorting hole is 1/2nd of minor air cell's internal diameter.

Described industrial low noise cold air machine, the compressed air inlet direction of its expanding chamber and its cavity angle Φ radially are 50～65 degree.

Described industrial low noise cold air machine, the length of its minor air cell are 8～12 times of its internal diameter.

Described industrial low noise cold air machine, the internal diameter of its anechoic chamber are 2～3 times of vortex tube internal diameter, and the length of anechoic chamber is 1.5～3 times of its internal diameter.

Described industrial low noise cold air machine, the hot and cold air delivery line becomes an angle of 90 degrees with vortex tube, and its part of inserting the anechoic chamber will make its port surpass the vortex tube outlet.

The utility model has the advantages that:

1, few, the simple structure of low noise, connecting portion, convenient operating maintenance;

2, refrigeration (heat) is effective;

3, the starting time is short;

4, refrigeration working medium is cheap and easy to get, can adopt air, also available other source of the gas;

5, according to different purposes, cold and hot gas uses and exchanges conveniently;

6, the temperature of hot and cold air is adjustable;

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is expand chamber and A-A cross section, a minor air cell cut-away view of Fig. 1.

The specific embodiment

Below in conjunction with the description of drawings specific embodiment of the present utility model and operation principle:

The stage casing of vortex tube 1 is as minor air cell 2, and it places in expanding chamber 3 chambeies.Have gas port 21 on the eddy current locular wall and communicate with the expansion chamber, expanding chamber has compressed air inlet 31, and vortex tube one end communicates with thermal current delivery line 4, and the vortex tube other end communicates with cold airflow delivery line 6 through sorting hole 5.The minor air cell is cylindrical, and spiral of Archimedes 7 is arranged on its inner chamber, and the direction of spiral of Archimedes is pointed to the thermal current outlet, is beneficial to the derivation of thermal current.Between vortex tube two ends and hot and cold air outlet, be provided with anechoic chamber 8,9.When the gas port in the minor air cell is a plurality of, evenly distribute around the eddy current locular wall, the direction of gas port and minor air cell's caliber are 50～65 degree to angle theta, make air-flow and eddy current locular wall laterally near tangent, so that form eddy current.The diameter of sorting hole is 1/2nd of minor air cell's internal diameter, and it passes through the cold airflow at eddy current center, enters anechoic chamber 9, derives from wireway 6 then.

During work, compressed air under the normal temperature state (more than the 0.15mpa) enters expanding chamber by air inlet 31 and expands, air inlet 31 directions and expanding chamber cavity angle Φ radially is 50～65 degree, so that fair speed compressed air tangentially enters, take advantage of a situation and enter the minor air cell by gas port 21, air-flow through second-compressed forms the eddy current of rotation at a high speed in the minor air cell, the exchange of process kinetic energy is separated into temperature two parts inequality.The gas of the core of eddy current goes out to an effluent through sorting hole 5, is cold airflow (temperature is-10 ℃～50 ℃); The gas of swirl edge part flows out to opposite side and through adjusting control valve 10 controls, is thermal current (temperature is 70 ℃～130 ℃).Adjusting control valve (mechanical valve or magnetic valve) is used for changing the pressure of gas in the thermal current end vortex tube, thereby the flow-rate ratio that can regulate cold and hot two parts air-flow, thereby changes the temperature of hot and cold air.Gas port is established when a plurality of and is evenly distributed around the eddy current locular wall.

Anechoic chamber 8,9 is main to adopt the expanding noise-cancelling theorys, utilizes the change of cross-section of pipeline to make the air-flow expansion and shrinks the reflection that causes and interfere and eliminate the noise.For preventing that gas shock anechoic chamber housing from producing the secondary noise, laid one deck acoustic material 81,91 simultaneously on inboard each surface of housing.The hot and cold air delivery line becomes an angle of 90 degrees with vortex tube, and the part of inserting the anechoic chamber will make its port surpass the vortex tube outlet, so that air-flow fully reverberates noise reduction in the anechoic chamber, is discharged by cold and hot gas discharge pipe 4,6 through the hot and cold air of noise reduction.And such design, the power performance of air is greatly improved, drag losses less (about 20%).

Claims

1, a kind of industrial low noise cold air machine, mainly form by minor air cell, expanding chamber, blast pipe, muffler, it is characterized in that the vortex tube stage casing places the part in the expansion chamber to constitute the minor air cell, having gas port on the eddy current locular wall communicates with expanding chamber, vortex tube one end communicates with the thermal current delivery line, and the vortex tube other end communicates with the cold airflow delivery line through sorting hole.

2, industrial low noise cold air machine according to claim 1 is characterized in that being provided with the anechoic chamber between vortex tube two ends and the hot and cold air delivery line, and anechoic chamber's inner surface is laid with acoustic material.

3, industrial low noise cold air machine according to claim 1 and 2 is characterized in that the minor air cell is cylindrical, on its inner chamber spiral of Archimedes is arranged, and the direction of spiral of Archimedes is pointed to the thermal current outlet.

4, industrial low noise cold air machine according to claim 1 and 2, it is characterized in that the direction of gas port in the minor air cell and minor air cell's caliber to angle theta be 50～65 degree.

5, industrial low noise cold air machine according to claim 1 and 2, the diameter that it is characterized in that sorting hole is 1/2nd of minor air cell's internal diameter.

6, industrial low noise cold air machine according to claim 1 and 2 is characterized in that the compressed air inlet direction of expanding chamber and expanding chamber cavity angle Φ radially are 50～65 degree.

7, industrial low noise cold air machine according to claim 1 and 2, the length that it is characterized in that the minor air cell is 8～12 times of its internal diameter.

8, industrial low noise cold air machine according to claim 1 and 2, the internal diameter that it is characterized in that the anechoic chamber is 2～3 times of vortex tube internal diameter, the length of anechoic chamber is 1.5～3 times of its internal diameter.

9, industrial low noise cold air machine according to claim 1 and 2 is characterized in that the hot and cold air delivery line becomes an angle of 90 degrees with vortex tube, and its part of inserting the anechoic chamber will make its port surpass the vortex tube outlet.