CN212563576U

CN212563576U - Piston rod of reciprocating compressor

Info

Publication number: CN212563576U
Application number: CN202021443268.XU
Authority: CN
Inventors: 丁义勇; 王淑玲
Original assignee: Daqing Aopu Electronic Technology Co ltd
Current assignee: Daqing Aopu Electronic Technology Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-02-19
Anticipated expiration: 2030-07-21

Abstract

The utility model discloses a reciprocating compressor piston rod, including installing the piston rod main part in the compressor main part, the inside hollow structure that is of piston rod main part is provided with feed liquor room and play liquid room in the piston rod main part, and the bottom of feed liquor room is located out liquid indoor portion, and feed liquor roof portion inner wall swing joint has last cock body, and goes out liquid roof portion inner wall swing joint and have lower cock body, goes out liquid roof portion internal diameter and is less than lower cock body diameter, and goes up the cock body top and have last guide bar through the screw fixation, and feed liquor roof portion outer wall welding has the support, goes up guide bar sliding connection in support inner wall. The utility model discloses a set up out liquid chamber, feed liquor room isotructure, can utilize the reciprocating motion of piston rod main part self, the cock body and play liquid chamber displacement in the drive, and then take out the coolant liquid in feed liquor pipe and the liquid outlet pipe and send, realize the circulative cooling of coolant liquid, and coolant liquid circulating speed can change based on the frequency change of piston rod main part motion and change, has ensured the cooling effect.

Description

Piston rod of reciprocating compressor

Technical Field

The utility model relates to a reciprocating compressor technical field especially relates to a reciprocating compressor piston rod.

Background

The reciprocating compressor is a compressor which periodically changes the volume of a cylinder body through the reciprocating motion of a piston or a diaphragm in a cylinder and realizes the pressurization and the delivery of gas; when the compressor is used, a large amount of heat is easily generated due to the reciprocating motion of the piston, if the heat cannot be effectively transferred, the compressor is very easy to damage, the heat dissipation performance of piston rods of most of the existing compressors is poor, and although some compressors and piston rods do not exceed the temperature standard, the service life of the compressors and the piston rods is still influenced by high temperature.

Through search, chinese patent application No. CN201220476898.6 discloses a piston rod of a reciprocating compressor. The piston rod comprises a piston rod body, wherein one end of the piston rod body is provided with a piston connecting part, and the other end of the piston rod body is provided with a crosshead connecting part; the center of the piston rod body is provided with an oil channel which extends inwards to the middle rear part from the end surface of the crosshead connecting part, and the outer end of the oil channel is provided with a connecting part with internal threads; an oil pipe is further arranged in the oil duct, an oil baffle ring is arranged between the inner end of the oil pipe and the oil duct, an oil outlet is further arranged on the outer wall of the inner end of the oil pipe, an oil inlet wire head with external threads is arranged at the outer end of the oil pipe, and the oil inlet wire head is connected to a connecting part on the oil duct; and an oil discharge port communicated to the oil duct is also arranged on the outer wall of the piston rod body on the inner side of the crosshead connecting part. The piston rod in the above patent has the following disadvantages: although the piston rod has a certain heat dissipation effect, the heat dissipation effect is poor, and the cooling circulation rate cannot be automatically adjusted according to the motion condition of the piston rod.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a piston rod of a reciprocating compressor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a reciprocating compressor piston rod comprises a piston rod main body arranged in a compressor main body, wherein the interior of the piston rod main body is of a hollow structure, a liquid inlet chamber and a liquid outlet chamber are arranged in the piston rod main body, the bottom of the liquid inlet chamber is positioned in the liquid outlet chamber, the inner wall of the top of the liquid inlet chamber is movably connected with an upper plug body, the inner wall of the top of the liquid outlet chamber is movably connected with a lower plug body, the inner diameter of the top of the liquid outlet chamber is smaller than the diameter of the lower plug body, an upper guide rod is fixed at the top of the upper plug body through screws, a support is welded on the outer wall of the top of the liquid inlet chamber, the upper guide rod is connected to the inner wall of the support in; the circumferential outer wall of the liquid inlet chamber is provided with uniformly distributed liquid discharging holes, and the liquid discharging holes correspond to the upper plug body in position; a liquid inlet pipe is welded on the side wall of the bottom end of the liquid inlet chamber, the liquid inlet pipe sequentially penetrates through the liquid outlet chamber and the inner wall of the compressor body in a sealing manner, a liquid outlet pipe is welded at the bottom of the liquid outlet chamber, and the liquid outlet pipe penetrates through the inner wall of one side of the compressor body in a sealing manner; the compressor is characterized in that a heat dissipation mechanism is arranged on one side of the compressor body, the liquid inlet pipe and the liquid outlet pipe form a circulation loop through the heat dissipation mechanism, and cooling liquid is filled in the liquid inlet pipe and the liquid outlet pipe.

As a further aspect of the present invention: the impeller is installed through the mounting bracket in the feed liquor chamber, goes up the cock body and is hollow structure, and impeller axis and the coincidence of last cock body axis just correspond with the outage position.

As a further aspect of the present invention: an annular liquid discharge groove is formed in the inner wall of one side of the liquid outlet chamber, and the inner diameter of the liquid discharge groove is larger than the diameter of the lower plug body.

As a further aspect of the present invention: the top surface of the lower plug body is of a circular ring structure, and extends towards the lower part of the outer side of the circumference; the inner wall of the lower plug body is movably connected with two lower guide rods, and the lower guide rods are welded on the inner wall of the liquid outlet chamber.

As a further aspect of the present invention: the heat dissipation mechanism is specifically a heat dissipation cold bar, and the input and output ends of the heat dissipation cold bar are respectively connected to one ends of the liquid inlet pipe and the liquid outlet pipe.

As a further aspect of the present invention: still be provided with temperature sensor on the drain pipe, and be located the circulation case that still is provided with automatically controlled valve and pump body on the drain pipe in the compressor main part outside.

As a further aspect of the present invention: the liquid inlet pipe is also provided with a thermosensitive ceramic ring, and the thermosensitive ceramic ring is positioned on the outer side of the compressor main body.

The utility model has the advantages that:

1. the utility model discloses a set up out liquid chamber, feed liquor room isotructure, can utilize the reciprocating motion of piston rod main part self, the cock body and play liquid chamber displacement in the drive, and then take out the coolant liquid in feed liquor pipe and the liquid outlet pipe and send, realize the circulative cooling of coolant liquid, and coolant liquid circulating speed can change based on the frequency change of piston rod main part motion and change, has ensured the cooling effect.

2. By arranging the impeller, when the upper plug body is sucked, the synchronous belt impeller rotates to stir the cooling liquid around the impeller, so that the cooling liquid can be uniformly dispersed to the inner wall of the piston rod main body, and the cooling effect is improved; by providing the drain tank, a sufficient space can be provided to facilitate the discharge of the coolant.

3. By arranging the shape structure of the lower plug body, the sealing performance can be improved, and meanwhile, the flow guide effect on cooling liquid is achieved during liquid drainage, so that the liquid drainage speed is improved; by arranging the heat dissipation cold row, the cooling liquid can be fully cooled, so that the cooling effect is improved; the temperature sensor and the circulation box are arranged, so that the temperature of liquid in the liquid outlet pipe can be conveniently detected, when the temperature is higher, the electric control valve and the pump body of the circulation box are controlled to work, so that new cooling liquid can be conveniently replaced, and meanwhile, old cooling liquid is pumped into the circulation box for cooling and standby, so that the temperature control effect is improved; through setting up the temperature sensing ceramic circle, can be convenient for reflect the temperature of coolant liquid directly perceivedly, be convenient for observe, promoted the practicality.

Drawings

Fig. 1 is a schematic structural diagram of a reciprocating compressor piston rod according to the present invention;

fig. 2 is a schematic structural view of a reciprocating compressor piston rod according to the present invention in cross section;

FIG. 3 is a schematic structural view of a liquid inlet chamber and a liquid outlet chamber of a piston rod of a reciprocating compressor according to the present invention;

fig. 4 is a circuit flow chart of the piston rod of the reciprocating compressor according to the present invention.

In the figure: 1-piston rod body, 2-compressor body, 3-liquid inlet pipe, 4-thermal sensitive ceramic ring, 5-heat dissipation cold discharge, 6-circulation box, 7-liquid outlet pipe, 8-temperature sensor, 9-upper guide rod, 10-upper plug body, 11-liquid outlet chamber, 12-liquid inlet chamber, 13-limiting ring, 14-impeller, 15-sealing ring, 16-liquid discharge groove, 17-lower plug body, 18-lower guide rod and 19-liquid discharge hole.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

A reciprocating compressor piston rod is shown in figures 1-4 and comprises a piston rod main body 1 arranged in a compressor main body 2, wherein the interior of the piston rod main body 1 is of a hollow structure, a liquid inlet chamber 12 and a liquid outlet chamber 11 are arranged in the piston rod main body 1, the bottom of the liquid inlet chamber 12 is positioned in the liquid outlet chamber 11, the inner wall of the top of the liquid inlet chamber 12 is movably connected with an upper plug body 10, the inner wall of the top of the liquid outlet chamber 11 is movably connected with a lower plug body 17, the inner diameter of the top of the liquid outlet chamber 11 is smaller than the diameter of the lower plug body 17, an upper guide rod 9 is fixed at the top of the upper plug body 10 through screws, a support is welded on the outer wall of the top of the liquid inlet chamber 12, the upper guide rod 9 is connected to the inner wall of the support in a sliding mode; the circumferential outer wall of the liquid inlet chamber 12 is provided with liquid discharging holes 19 which are uniformly distributed, and the liquid discharging holes 19 correspond to the upper plug body 10; the side wall of the bottom end of the liquid inlet chamber 12 is welded with a liquid inlet pipe 3, the liquid inlet pipe 3 sequentially penetrates through the liquid outlet chamber 11 and the inner wall of the compressor main body 2 in a sealing manner, the bottom of the liquid outlet chamber 11 is welded with a liquid outlet pipe 7, and the liquid outlet pipe 7 penetrates through the inner wall of one side of the compressor main body 2 in a sealing manner; a heat dissipation mechanism is arranged on one side of the compressor main body 2, the liquid inlet pipe 3 and the liquid outlet pipe 7 form a circulation loop through the heat dissipation mechanism, and cooling liquid is filled in the liquid inlet pipe 3 and the liquid outlet pipe 7; through setting up out liquid chamber 11, feed liquor chamber 12 isotructures, can utilize piston rod main part 1 self reciprocating motion, drive cock body 10 and play liquid chamber 11 displacements, and then take out the delivery to the coolant liquid in feed liquor pipe 3 and the drain pipe 7, realize the circulative cooling of coolant liquid, and coolant liquid circulating speed can change based on the frequency change of piston rod main part 1 motion, has ensured the cooling effect.

In order to improve the heat dissipation effect; as shown in fig. 2 and 3, an impeller 14 is installed in the liquid inlet chamber 12 through an installation frame, the upper plug 10 is of a hollow structure, and a central axis of the impeller 14 is overlapped with a central axis of the upper plug 10 and corresponds to the position of the liquid discharge hole 19; through setting up impeller 14, can be when the stopper body 10 is sucked up, synchronous belt movable impeller 14 is rotatory, stirs the coolant liquid through impeller 14 is peripheral, and then makes the coolant liquid can be by even dispersion to piston rod main part 1 inner wall, promotes the cooling effect.

To facilitate the discharge of the cooling liquid; as shown in fig. 3, an annular liquid discharge groove 16 is formed in the inner wall of one side of the liquid outlet chamber 11, and the inner diameter of the liquid discharge groove 16 is larger than the diameter of the lower plug 17; by providing drain tank 16, sufficient space can be provided for draining the coolant.

In order to improve the liquid drainage effect; as shown in fig. 3, the top surface of the lower plug 17 is a circular ring structure, and the top surface of the lower plug 17 extends downward to the outside of the circumference; lower cock body 17 inner wall swing joint has two guide bars 18 down, and lower guide bar 18 welds in play liquid chamber 11 inner wall, through setting up the shape structure of cock body 17 down, can promote the leakproofness when, plays the effect of water conservancy diversion to the coolant liquid when flowing back to flowing back speed has been promoted.

In order to improve the cooling effect; as shown in fig. 1, the heat dissipation mechanism is specifically a heat dissipation cold bar 5, and an input end and an output end of the heat dissipation cold bar 5 are respectively connected to one end of a liquid inlet pipe 3 and one end of a liquid outlet pipe 7; through setting up heat dissipation cold row 5, can fully cool down the coolant liquid to promote the cooling effect.

In order to improve the temperature control effect; as shown in fig. 1 and 2, a temperature sensor 8 is further disposed on the liquid outlet pipe 7, and a circulation box 6 having an electric control valve and a pump body is further disposed on the liquid outlet pipe 7 located outside the compressor main body 2, wherein the model of the temperature sensor 8 is QAA 2012; a control unit is also arranged on one side of the compressor main body 2 and is electrically connected with the temperature sensor 8, an electric control valve of the circulation box 6 and the pump body; through setting up temperature sensor 8 and circulation case 6, can be convenient for detect the inside liquid temperature of drain pipe 7, when the temperature was on the high side, the automatically controlled valve and the pump body work of control circulation case 6 to in the coolant liquid of renewal, cool off reserve in the circulation case 6 with old coolant liquid suction simultaneously, promoted accuse temperature effect.

In order to improve the practicability; as shown in fig. 1, a heat-sensitive ceramic ring 4 is further arranged on the liquid inlet pipe 3, and the heat-sensitive ceramic ring 4 is positioned outside the compressor main body 2; through setting up temperature sensing ceramic circle 4, can be convenient for reflect the temperature of coolant liquid directly perceivedly, be convenient for observe, promoted the practicality.

The working principle is as follows: when the piston rod cooling device is used, a motor of the compressor works to drive the piston rod main body 1 to reciprocate, the liquid outlet chamber 11 and the liquid inlet chamber 12 are in a static state relative to the compressor main body 2, so that the piston rod main body 1 does reciprocating motion with the same frequency relative to the liquid outlet chamber 11 and the liquid inlet chamber 12, under the sealing of the sealing ring 15, when the piston rod main body 1 moves, the upper plug body 10 and the lower plug body 17 are in circulating conduction along with the change of the volume, so that cooling liquid can realize circulating circulation, when the upper plug body 10 is sucked, the synchronous belt movable impeller 14 rotates to stir the cooling liquid passing through the periphery of the impeller 14, so that the cooling liquid can be uniformly dispersed to the inner wall of the piston rod main body 1, and the cooling effect is; due to the gravity factor, the cooling liquid in the piston rod main body 1 flows onto the lower plug body 17, when the lower plug body 17 is extruded and falls, the cooling liquid immediately flows out of the liquid discharge groove 16, the temperature sensor 8 and the circulation box 6 can detect the temperature of the liquid in the liquid discharge pipe 7, and when the temperature is too high, the electric control valve and the pump body of the circulation box 6 are controlled to work, so that the new cooling liquid can be replaced conveniently, and meanwhile, the old cooling liquid is sucked into the circulation box 6 for cooling and standby, so that the temperature control effect is improved; the thermosensitive ceramic ring 4 can change color according to temperature change, so that the temperature of the cooling liquid can be conveniently and visually reflected, observation is convenient, and the practicability is improved.

The above, only be the concrete implementation 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 is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a reciprocating compressor piston rod, including installing piston rod main part (1) in compressor main part (2), a serial communication port, piston rod main part (1) inside is hollow structure, be provided with feed liquor room (12) and play liquid chamber (11) in piston rod main part (1), the bottom of feed liquor room (12) is located inside play liquid chamber (11), feed liquor room (12) top inner wall swing joint has last cock body (10), and go out liquid chamber (11) top inner wall swing joint has lower cock body (17), go out liquid chamber (11) top internal diameter and be less than lower cock body (17) diameter, and go up cock body (10) top and be fixed with last guide bar (9) through the screw, feed liquor room (12) top outer wall welding has the support, go up guide bar (9) sliding connection in support inner wall, and go up guide bar (9) circumference outer wall and be equipped with spacing ring (13), spacing ring (13) are located the support top, the upper plug body (10) is positioned below the bracket; the circumferential outer wall of the liquid inlet chamber (12) is provided with uniformly distributed liquid discharging holes (19), and the liquid discharging holes (19) correspond to the upper plug body (10); the liquid inlet pipe (3) is welded on the side wall of the bottom end of the liquid inlet chamber (12), the liquid inlet pipe (3) penetrates through the inner walls of the liquid outlet chamber (11) and the compressor main body (2) in a sealing mode in sequence, the liquid outlet pipe (7) is welded at the bottom of the liquid outlet chamber (11), and the liquid outlet pipe (7) penetrates through the inner wall of one side of the compressor main body (2) in a sealing mode; compressor main part (2) one side is equipped with heat dissipation mechanism, and feed liquor pipe (3) and drain pipe (7) constitute circulation circuit through heat dissipation mechanism, and the filling has the coolant liquid in feed liquor pipe (3) and drain pipe (7).

2. A piston rod of a reciprocating compressor according to claim 1, characterized in that an impeller (14) is installed in the liquid inlet chamber (12) through a mounting frame, the upper plug body (10) is of a hollow structure, and the central axis of the impeller (14) is coincident with the central axis of the upper plug body (10) and corresponds to the position of the liquid outlet hole (19).

3. Piston rod of a reciprocating compressor according to claim 2, characterized in that the inner wall of one side of the liquid outlet chamber (11) is provided with an annular liquid outlet groove (16), and the inner diameter of the liquid outlet groove (16) is larger than the diameter of the lower plug body (17).

4. A piston rod of a reciprocating compressor according to claim 3, characterized in that the top surface of the lower plug body (17) is a circular ring type structure, and the top surface of the lower plug body (17) extends downward to the outside of the circumference; the inner wall of the lower plug body (17) is movably connected with two lower guide rods (18), and the lower guide rods (18) are welded on the inner wall of the liquid outlet chamber (11).

5. Piston rod of a reciprocating compressor according to claim 4, characterized in that said heat dissipating means is embodied as a heat dissipating cold bar (5), and the input and output ends of said heat dissipating cold bar (5) are connected to one end of the liquid inlet pipe (3) and the liquid outlet pipe (7), respectively.

6. Piston rod of a reciprocating compressor according to claim 5, characterized in that said outlet pipe (7) is further provided with a temperature sensor (8) and that the outlet pipe (7) outside the compressor body (2) is further provided with a circulation box (6) with an electrically controlled valve and a pump body.

7. A reciprocating compressor piston rod according to any of claims 1-6, characterized in that the inlet pipe (3) is further provided with a thermo sensitive ceramic ring (4), the thermo sensitive ceramic ring (4) being located outside the compressor body (2).