CN203420852U

CN203420852U - Piston type isothermal gas compressor

Info

Publication number: CN203420852U
Application number: CN201320386810.6U
Authority: CN
Inventors: 肖波
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-02
Filing date: 2013-07-02
Publication date: 2014-02-05
Anticipated expiration: 2023-07-02

Abstract

The utility model provides a piston type isothermal gas compressor which can reduce the discharge temperature and reduce power consumption. The piston type isothermal gas compressor is composed of a gas cylinder body, a gas cylinder head, a valve piece, a piston, piston top ribs, gas cylinder head heat exchange ribs, a piston pin, a crankshaft, and the like. The gas cylinder head heat exchange ribs are arranged in the gas cylinder head and integrated with the gas cylinder head, the piston top ribs are arranged on the top of the piston, and the piston is integrated with the piston top ribs. The gas cylinder head heat exchange ribs are mutually embedded with the piston top ribs. With reference to a compressor of large size, through holes are formed in the gas cylinder head heat exchange ribs, so that compression heat of compressed gas exchange with heat of air or water (liquid) in the through holes. When the compressor works, compression heat in the gas cylinder body is conducted outside the compressor through the heat exchange ribs, and therefore the purposes of reducing power consumption of the compressor, and reducing the discharge temperature of the compressor are achieved.

Description

Piston type isothermal gas compressor

Affiliated technical field

The utility model relates to a kind of piston gas compressor, the piston type isothermal gas compressor that especially can dispel the heat in cylinder block.

Background technique

At present, known piston gas compressor structure be by cylinder, air valve and in cylinder reciprocating piston form.It has constantly changed pressurized gas by cylinder and piston swept volume, and piston compressor is often to be rotated a circle and completed successively air-breathing, compression and exhaust work circulates by bent axle.When compressor operating, because the compressed gas in cylinder does not carry out heat exchange with the external world substantially, in adiabatic compression process.The circulation total work consuming during according to the known adiabatic compression of the first law of thermodynamics is maximum, and compressor power consumption is maximum; And after the high temperature and high pressure gas that outlet valve is discharged dispels the heat to compressor, gas volume dwindles, and is also a kind of power consumption; And in compression process, its chemical property requires delivery temperature must not surpass a certain temperature for some special gas (as the refrigeration agent of rock gas and some easy combustion explosions); Because high temperature causes compressor lubricant oil quality variation, lubrication effect will reduce gradually.If so can realize isothermal compression, can reduce the power consumption of compressor, reduce delivery temperature, improve the volumetric coefficient of compressor, can also reduce the replacing number of times of compressor lubricant oil.For multistage compressor, realize isothermal compression, can also reduce the progression of multistage compressor.

In order to overcome the deficiency that existing piston gas compressor power consumption is large, delivery temperature is high, the utility model provides a kind of piston type isothermal gas compressor, this compressor can not only reduce compressor exhaust temperature and improve the volumetric coefficient of compressor, and can reduce the power consumption of compressor, can also reduce the replacing number of times of compressor lubricant oil.

Model utility content

The utility model solves the technological scheme that its technical problem adopts: piston type isothermal gas compressor is to consist of cylinder block, cylinder head, air valve plate, piston, piston head fin, cylinder head heat exchange fin, wrist pin, bent axle etc.Wherein at cylinder head top, have cylinder head heat exchange fin, cylinder head heat exchange fin and cylinder head are overall structure; At piston head, have piston head fin, the fin of piston and piston head is overall structure, and cylinder head heat exchange fin and piston head fin are chimeric mutually.When compressor operating, the compression heat of cylinder interior is transmitted to cylinder body outside by heat exchange fin.For the larger compressor of volume, in order to alleviate piston weight, piston head fin is designed to hollow-core construction, the heat that is more conducive to piston head fin to absorb is transmitted in lubricant oil, in the middle of cylinder head heat exchange fin, be designed with through hole simultaneously, make air or water (liquid) in compressed high-temperature gas and through hole carry out heat exchange, the heat of compression of compressor is transmitted to cylinder outside.According to the first law of thermodynamics, the principle least in power-consuming of compressor during isothermal compression, when compressor compresses gas, is transmitted to cylinder outside by the heat of compression, thereby reach, reduces the power consumption of compressor, the object of reduction compressor exhaust temperature.

The beneficial effects of the utility model are, when compressor operating, the heat of compression of compressor can be transmitted to cylinder body outside by heat exchange fin, reduce compressor power consumption, reduce compressor exhaust temperature, reduce compressor lubricant oil replacing number of times, for multistage compressor, can also reduce the progression of multistage compressor.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is further illustrated.

Fig. 1 is longitudinal section of the present utility model aufbauprinciple schematic diagram.

Fig. 2 is compared with the longitudinal section aufbauprinciple schematic diagram of small-sized piston formula isothermal gas compressor.

Fig. 3 is the charging stage schematic diagram of piston type isothermal gas compressor.

Fig. 4 is the compression stage schematic diagram of piston type isothermal gas compressor.

Fig. 5 is the exhaust phase schematic diagram of piston type isothermal gas compressor.

1. cylinder heads in figure, 2. cylinder block, 3. piston, 4. wrist pin, 5. air valve cap, 6. bent axle, 7. air-intake valve plate, 8. exhaust valve plate, 9. cylinder head heat exchange fin, 10. piston head fin, 11. heat exchange fin through holes, 12. radiating fin.

Embodiment

In Fig. 1, cylinder block (2) inside is provided with piston (3); Piston head fin (10) is arranged at piston (3) top, and piston head fin (10) is hollow-core construction; In cylinder head (1), there is cylinder head heat exchange fin (9), is designed with through hole (11) in the middle of cylinder head heat exchange fin (9), the heat of compression that in through hole (11), mobile water (liquid) or air are taken away compressor; At the top of cylinder head (1), there are air-intake valve plate (7) and exhaust valve plate (8).When compressor operating, piston (3) moves reciprocatingly in cylinder block (2), and piston head fin (10) is chimeric mutually with cylinder head heat exchange fin (9).

Shown in Fig. 2, it is being more small-sized piston type isothermal gas compressor, because compressor volume is less, therefore there is cylinder head heat exchange fin (9) there is no heat exchange fin through hole (11) in cylinder head (1), the piston head fin (10) on piston (3) is also solid construction; Air-intake valve plate (7) and exhaust valve plate (8) are respectively in cylinder head (1) both sides; There is radiating fin (12) cylinder head (1) outside, and the heat of compression of compressor is transmitted in air thus.

In the charging stage schematic diagram of the piston type isothermal gas compressor shown in Fig. 3, piston (3) is descending, and air-intake valve plate (7) is opened, and exhaust valve plate (8) is closed, and gas enters cylinder interior.

In the charging stage schematic diagram of the piston type isothermal gas compressor shown in Fig. 4, piston (3) is up, air-intake valve plate (7) is closed, exhaust valve plate (8) is closed, gas is compressed, the heat part that compression produces is transmitted in lubricant oil by piston head fin (10), and a part is transmitted to cylinder block outside by cylinder block (2), and some heat is transmitted to compressor outside by cylinder head heat exchange fin (9).

In the exhaust phase schematic diagram of the piston type isothermal gas compressor shown in Fig. 5, piston (3) arrives cylinder head (1) top, piston head fin (10) is completely chimeric with cylinder head heat exchange fin (9), air-intake valve plate (7) is closed, exhaust valve plate (8) is opened, and gas is discharged cylinder.

Claims

1. a piston type isothermal gas compressor, it consists of cylinder block, cylinder head, air valve plate, piston, piston head fin, cylinder head heat exchange fin, wrist pin, bent axle etc., it is characterized in that: at cylinder head top, have cylinder head heat exchange fin; At piston head, have piston head fin, when compressor operating, the compression heat of cylinder block inside is transmitted to cylinder outside by heat exchange fin.

2. piston type isothermal gas compressor according to claim 1, is characterized in that cylinder head heat exchange fin and piston head fin are chimeric mutually.

3. piston type isothermal gas compressor according to claim 1, it is characterized in that: in the middle of compresser cylinder head heat exchange fin, have through hole, make the heat of compression of compressed gas and the air in through hole or water carry out heat exchange, the heat of compression of compressor is transmitted to cylinder outside.