CN113883123B

CN113883123B - Stable filling device with convenient adjustment of hydraulic low-temperature liquid flow

Info

Publication number: CN113883123B
Application number: CN202111139406.4A
Authority: CN
Inventors: 陈翔; 丁思年; 丁成维; 夏佳佳
Original assignee: Anhui Youming Bafang Technology Co ltd
Current assignee: Anhui Youming Bafang Technology Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2023-06-23
Anticipated expiration: 2041-09-28
Also published as: CN113883123A

Abstract

The invention discloses a stable filling device with convenient adjustment of hydraulic low-temperature liquid flow, which comprises a hydraulic cylinder, wherein a piston column is arranged in the hydraulic cylinder, hydraulic medium inlet and outlet pipes are connected to the hydraulic cylinders on two sides of the piston column, cylinder bases are detachably arranged at two ends of the hydraulic cylinder, main filling cavities matched with the piston column are arranged in the cylinder bases, two ends of the piston column extend to the inner parts of the main filling cavities at the two ends respectively and are provided with sealing rings, and auxiliary filling cavities are arranged at the axle center positions of the two ends of the piston column. According to the invention, the hydraulic driving piston column is utilized to reciprocate in the hydraulic cylinder to realize double-head filling of low-temperature liquid, the double-head bidirectional alternate filling is sufficient in large flow and high-pressure filling requirements provided by hydraulic pressure, the main filling cavity can be properly enlarged without influence, and the main filling cavity is matched with the auxiliary filling cavity for filling, so that not only is quantitative filling matching of the low-temperature liquid convenient, but also the safety of the low-temperature liquid filling is improved.

Description

Stable filling device with convenient adjustment of hydraulic low-temperature liquid flow

Technical Field

The invention relates to the technical field of low-temperature liquid filling, in particular to a stable filling device with hydraulic low-temperature liquid flow convenient to adjust.

Background

Along with the continuous development of national science and technology, the application of low-temperature liquid or ultra-low-temperature liquid is more and more extensive, the filling requirement is higher and higher, the low-temperature liquid filling, compression and pressure boosting are all developed to another height, and the low-temperature filling industry mainly adopts a connecting rod reciprocating plunger type low-temperature liquid pump at present, so that the defects are that the flow rate can be met, but the pressure cannot be met; also, pneumatic booster pumps are used, which have the disadvantage of too small a flow rate and not being able to operate for a long time.

The hydraulic filling device is used for improving the filling pressure while providing larger filling flow for the existing low-temperature semi-liquid filling device and is smaller in filling flow, the problem that the filling quantity is not easy to control and change and adjust in the high-capacity filling process even in the ultra-large-capacity filling process is solved, and the controllability of low-temperature liquid filling and the stability of safe use are improved.

Disclosure of Invention

The invention aims to provide a stable filling device with convenient adjustment of hydraulic low-temperature liquid flow so as to solve the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a stable filling device of convenient adjustment of fluid pressure type low temperature liquid flow, includes the pneumatic cylinder, the inside of pneumatic cylinder is equipped with the piston post, and all is connected with the hydraulic medium business turn over pipe on the pneumatic cylinder of piston post both sides, the both ends of pneumatic cylinder are all demountable installation has the cylinder seat, the inside of cylinder seat is equipped with the main filling chamber with piston post looks adaptation, the both ends of piston post extend to the inside of both ends main filling chamber respectively and are equipped with the sealing washer, and the axle center position department at piston post both ends all is equipped with vice filling chamber, both ends the one end that the cylinder seat kept away from the pneumatic cylinder all demountable installation has the connector, the inside of connector is equipped with the piston chamber, be equipped with the through-hole that is used for piston chamber and main filling chamber inside to be linked together on the cylinder seat, the inside of piston chamber is equipped with rather than the piston rod of looks adaptation, the external diameter of piston rod is unanimous with vice filling chamber internal diameter size, the connecting heads at two sides of the piston rod are connected with a hydraulic pipe, the connecting head at one end of the hydraulic cylinder is connected with a first liquid inlet pipe, the connecting head at the other end of the hydraulic cylinder is connected with a second liquid inlet pipe, one ends of the second liquid inlet pipe and the first liquid inlet pipe, which are close to the connecting head, penetrate through the piston rod and extend to the position of a through hole on the cylinder seat, the first liquid inlet pipe and the second liquid inlet pipe are provided with one-way valves, one end of the second liquid inlet pipe, which is far away from the connecting head, is communicated with the first liquid inlet pipe at the upstream of the one-way valve, the connecting head at one end of the hydraulic cylinder is connected with a first liquid outlet pipe, the connecting head at the other end of the hydraulic cylinder is connected with a second liquid outlet pipe, one ends of the second liquid outlet pipe and the first liquid outlet pipe, which are close to the connecting head, penetrate through the piston rod and extend to the same end positions of the second liquid inlet pipe and the first liquid inlet pipe respectively, the one-way valve is arranged on the first liquid outlet pipe and the second liquid outlet pipe, one end, far away from the connector, of the second liquid outlet pipe is communicated with the first liquid outlet pipe at the downstream of the one-way valve, and insertion holes for inserting the first liquid inlet pipe, the second liquid inlet pipe, the first liquid outlet pipe and the second liquid outlet pipe are formed in the piston rods at the two ends in a penetrating mode.

Preferably, the connector is fixed with the cylinder seat through bolts, the cylinder seat is fixed with the hydraulic cylinder through bolts, sealing gaskets are arranged between the connector and the cylinder seat and between the cylinder seat and the hydraulic cylinder, and the sealing gaskets are made of heat insulation materials.

Preferably, the hydraulic medium inlet and outlet pipe and the hydraulic pipe are connected with an external oil tank through an oil pump, and a heating pipe for heating hydraulic oil is arranged in the oil tank.

Preferably, the hydraulic pipes on the connecting heads at the two ends of the hydraulic cylinder are connected with the same oil pump or are respectively and independently connected with the oil pumps.

Preferably, one end of the connecting head, which is close to the cylinder seat, is detachably provided with a connecting sleeve, and two ends of the connecting sleeve are respectively fixed with the cylinder seat and the connecting head through bolts.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the double-head filling of low-temperature liquid is realized by utilizing the reciprocating motion of the hydraulic driving piston column in the hydraulic cylinder, the double-head bidirectional alternate filling is sufficient in large flow and the high-pressure filling requirement provided by hydraulic pressure is met, the main filling cavity can be properly enlarged without influencing, the main filling cavity is matched with the auxiliary filling cavity for filling, for example, the low-temperature liquid with the target filling weight is 10kg, the single-pass filling weight of the main filling cavity can be selected to fill with the capacity of 4kg, the residual low-temperature liquid with the capacity of 2kg is changed into the auxiliary filling cavity with the smaller capacity for filling, the double-head bidirectional alternate filling is not only convenient for quantitative filling matching of the low-temperature liquid, but also the filling quantity of the liquid carbon dioxide with the phase change effect is increased, and the filling quantity of the double-head bidirectional alternate filling device has very large influence on the use safety.

Drawings

FIG. 1 is a schematic diagram showing the internal structure of the present invention in front view in a high-capacity filling state;

FIG. 2 is a schematic diagram showing the internal structure of the small-capacity filling state of the present invention;

fig. 3 is a schematic view of the present invention with its interior partially disassembled.

In the figure: 1. a connector; 2. a cylinder base; 3. an auxiliary filling cavity; 4. a piston column; 5. a hydraulic cylinder; 6. a hydraulic medium inlet and outlet pipe; 7. a main filling chamber; 8. a hydraulic pipe; 9. a second liquid outlet pipe; 10. a piston rod; 11. a first liquid outlet pipe; 12. a first liquid inlet pipe; 13. a second liquid inlet pipe; 14. a jack; 15. connecting sleeves; 16. a sealing gasket; 17. a piston chamber.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-3, an embodiment of the present invention is provided: the utility model provides a stable filling device of convenient adjustment of fluid pressure type low temperature liquid flow, includes pneumatic cylinder 5, the inside of pneumatic cylinder 5 is equipped with piston post 4, and all is connected with hydraulic medium business turn over pipe 6 on the pneumatic cylinder 5 of piston post 4 both sides, the both ends of pneumatic cylinder 5 are all demountable installation has jar seat 2, and jar seat 2 seals the both ends use of pneumatic cylinder 5, fix through the bolt between jar seat 2 and the pneumatic cylinder 5, the outside of jar seat 2 is equipped with the flange that is used for covering the terminal surface use of pneumatic cylinder 5, has equidistant the mounting hole along its circumferencial direction on the flange, and is equipped with the internal thread hole with the bolt looks adaptation on the pneumatic cylinder 5, the inside of jar seat 2 is equipped with the main filling chamber 7 with piston post 4 looks adaptation, the both ends of piston post 4 extend respectively to the inside of both ends main filling chamber 7 and are equipped with the sealing washer, the volume of the main filling cavity 7 is larger according to actual conditions, the filling amount is convenient to lift, the auxiliary filling cavity 3 is arranged at the axle center position of two ends of the piston column 4, the auxiliary filling cavity 3 is sunken towards the inner side of the piston column 4, smaller volume is selected according to actual conditions, the smaller volume is used, the higher the final filling amount control precision is, the more beneficial to the increase of the safety of filling use is achieved, the two ends of the cylinder seat 2 are detachably provided with the connecting head 1 at one end far away from the hydraulic cylinder 5, the connecting head 1 and the cylinder seat 2 are fixed through bolts, the connecting sleeve 15 is detachably arranged at one end of the connecting head 1 close to the cylinder seat 2, two ends of the connecting sleeve 15 are respectively fixed with the cylinder seat 2 and the connecting head 1 through bolts, a sealing gasket 16 is arranged between the connecting head 1 and the cylinder seat 2 and the hydraulic cylinder 5, the sealing gasket 16 is made of heat insulation materials, the sealing gasket reduces the low temperature influence of low temperature liquid on the piston movable part, the inside of the connector 1 is provided with a piston cavity 17, the cylinder seat 2 is provided with a through hole for the piston cavity 17 to be communicated with the inside of the main filling cavity 7, the inside of the piston cavity 17 is provided with a piston rod 10 matched with the piston rod 10, the outer diameter of the piston rod 10 is consistent with the inner diameter of the auxiliary filling cavity 3, the moving amount of the piston rod 10 is larger than the sum of the lengths of the main filling cavity 7 and the auxiliary filling cavity 3, the piston rod 10 can be conveniently matched with the auxiliary filling cavity 3 for use after being stretched into the main filling cavity 7, the connectors 1 on two sides of the piston rod 10 are connected with hydraulic pipes 8, the hydraulic medium inlet and outlet pipes 6 and the hydraulic pipes 8 are connected with an external oil tank through oil pumps, the hydraulic pipes 8 on the connectors 1 on two ends of the hydraulic cylinder 5 are connected with the same oil pump or are respectively connected by oil pumps independently, namely, the hydraulic pipes at the joint 1 parts at two ends of the hydraulic cylinder 5 can realize hydraulic oil delivery through a pipeline controlled by an electromagnetic valve by the same oil pump, or can be independently connected with the oil pump to realize the delivery of hydraulic oil through the electromagnetic valve control pipeline, a heating pipe for heating the hydraulic oil is arranged in the oil tank and reducing the use influence of low-temperature liquid on a sealing element, a first liquid inlet pipe 12 is connected to the joint 1 at one end of the hydraulic cylinder 5, a second liquid inlet pipe 13 is connected to the joint 1 at the other end of the hydraulic cylinder 5, one ends of the second liquid inlet pipe 13 and the first liquid inlet pipe 12, which are close to the joint 1, penetrate through the piston rod 10 and extend to the position of a through hole on the cylinder seat 2, one-way valves are arranged on the first liquid inlet pipe 12 and the second liquid inlet pipe 13, one end of the second liquid inlet pipe 13, which is far away from the joint 1, is communicated with the first liquid inlet pipe 12 at the upstream of the one-way valve, the connector 1 of one end of the hydraulic cylinder 5 is connected with a first liquid outlet pipe 11, the connector 1 of the other end of the hydraulic cylinder 5 is connected with a second liquid outlet pipe 9, one ends of the second liquid outlet pipe 9 and the first liquid outlet pipe 11, which are close to the connector 1, penetrate through piston rods 10 and respectively extend to the same end face positions of a second liquid inlet pipe 13 and a first liquid inlet pipe 12, check valves are arranged on the first liquid outlet pipe 11 and the second liquid outlet pipe 9, one end, which is far away from the connector 1, of the second liquid outlet pipe 9 is communicated with the first liquid outlet pipe 11 at the downstream of the check valves, and insertion holes 14 used for the first liquid inlet pipe 12, the second liquid inlet pipe 13, the first liquid outlet pipe 11 and the second liquid outlet pipe 9 are arranged on the piston rods 10 at the two ends in a penetrating mode.

Working principle: the first liquid inlet pipe 12 is connected with a container for storing low-temperature liquid, the first liquid outlet pipe 11 is connected with a pipeline to be filled, when the filling is needed, the oil pump connected with the hydraulic medium inlet pipe 6 conveys hydraulic oil with a certain temperature in the oil tank to the inside of the hydraulic cylinder 5 at one side of the piston column 4 to carry out hydraulic pressure, the piston column 4 is forced to push to the opposite side so as to pump the low-temperature liquid in the main filling cavity 7 arranged in the push direction, the other side main filling cavity 7 can carry out low-temperature liquid suction and the like, when the next piston column 4 moves in the opposite direction, the low-temperature liquid can be filled in a large capacity through the main filling cavity 7 repeatedly, when the filling is about to be completed, namely, the filling container is about to reach the completion of filling, the filling is carried out by using the auxiliary filling cavity 3 with a small capacity, the filling adjustment is programmed and automatically controlled by an externally controlled PLC controller, the small-capacity auxiliary filling cavity 3 is used for controlling an oil pump to convey hydraulic oil to one end of a piston rod 10 far away from a cylinder seat 2 through a hydraulic pipe 8 by the PLC controller, the piston rod 10 after ejection is forced to be fixed after ejection, the ejected piston rod 10 is inserted into the auxiliary filling cavity 3 to form a piston injection space together with the auxiliary filling cavity, the small-capacity filling is carried out in the small-capacity auxiliary filling cavity 3 in cooperation with the reciprocating motion of a piston column 4, when the piston column 4 is damaged by the oil pump or blocked by a pipeline, the piston rod 4 is fixed, at the moment, the piston rod 10 can reciprocate, the emergency filling use of low-temperature liquid can also be realized, the control of a hydraulic pipeline is controlled by the externally connected PLC controller to realize the path adjustment of the hydraulic oil pipeline, in particular, the control of an electromagnetic valve on the corresponding pipeline by the PLC controller can be realized, and will not be described in detail.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a stable type filling device of convenient adjustment of fluid pressure type low temperature liquid flow, includes pneumatic cylinder (5), the inside of pneumatic cylinder (5) is equipped with piston post (4), and all is connected with hydraulic medium business turn over pipe (6) on pneumatic cylinder (5) of piston post (4) both sides, its characterized in that: the utility model discloses a hydraulic cylinder, including cylinder block (5), piston cylinder (5), connecting head (1) is all detachably installed at the both ends of cylinder block (2), the inside of cylinder block (2) is equipped with main filling chamber (7) with piston post (4) looks adaptation, the both ends of piston post (4) extend respectively to the inside of both ends main filling chamber (7) and are equipped with the sealing washer, and the axle center position department at piston post (4) both ends all is equipped with vice filling chamber (3), both ends cylinder block (2) keep away from the one end of cylinder block (5), all detachably install connector (1), the inside of connector (1) is equipped with piston chamber (17), be equipped with on cylinder block (2) and be used for piston chamber (17) and the inside through-hole that is linked together of main filling chamber (7), the inside of piston chamber (17) is equipped with piston rod (10) rather than looks adaptation, the external diameter and the vice inside diameter size of filling chamber (3) of piston rod (10) are unanimous, and all be connected with pneumatic tube (8) on connector (1) both sides piston rod (10), wherein the one end (1) is kept away from the one end of cylinder (5) is connected with the first hydraulic fluid (13) on the other end (1), the one end of the second liquid inlet pipe (13) and the one end of the first liquid inlet pipe (12) close to the connector (1) are connected with the first liquid outlet pipe (11) on the connector (1) of the one end of the hydraulic cylinder (5), the second liquid outlet pipe (9) is connected with the connector (1) of the other end of the hydraulic cylinder (5), one end of the second liquid outlet pipe (9) and one end of the first liquid outlet pipe (11) close to the connector (1) are connected with the piston rod (10) and are respectively extended to the same end positions of the second liquid inlet pipe (13) and the first liquid inlet pipe (12), the first liquid outlet pipe (11) and the second liquid outlet pipe (9) are respectively connected with the first liquid outlet pipe (1) at the same end positions, the first liquid outlet pipe (11) and the second liquid outlet pipe (9) are respectively connected with the first liquid outlet pipe (1), the second liquid outlet pipe (9) is connected with the second liquid outlet pipe (9) at the same end positions, and the first liquid outlet pipe (12) is connected with the first liquid outlet pipe (13) at the same end, and the first liquid outlet pipe (12) is connected with the second liquid outlet pipe (1) at the same end, and the second liquid outlet pipe (12) is connected with the first liquid outlet pipe (1) at the same end, and the second liquid outlet pipe (12) is connected with the second liquid outlet pipe The first liquid outlet pipe (11) and the second liquid outlet pipe (9) are provided with insertion holes (14) in an inserted mode.

2. The stable filling device for conveniently adjusting the flow rate of hydraulic low-temperature liquid according to claim 1, wherein: the connecting head (1) is fixed with the cylinder seat (2) through bolts, the cylinder seat (2) is fixed with the hydraulic cylinder (5) through bolts, sealing gaskets (16) are arranged between the connecting head (1) and the cylinder seat (2) and between the cylinder seat (2) and the hydraulic cylinder (5), and the sealing gaskets (16) are made of heat insulation materials.

3. The stable filling device for conveniently adjusting the flow rate of hydraulic low-temperature liquid according to claim 1, wherein: the hydraulic medium inlet and outlet pipe (6) and the hydraulic pipe (8) are connected with an external oil tank through an oil pump, and a heating pipe for heating hydraulic oil is arranged in the oil tank.

4. The stable filling device for conveniently adjusting the flow rate of hydraulic low-temperature liquid according to claim 1, wherein: the hydraulic pipes (8) on the connectors (1) at the two ends of the hydraulic cylinder (5) are connected with the same oil pump or are connected by using the oil pumps respectively and independently.

5. The stable filling device for conveniently adjusting the flow rate of hydraulic low-temperature liquid according to claim 2, wherein: one end of the connector (1) close to the cylinder seat (2) is detachably provided with a connecting sleeve (15), and two ends of the connecting sleeve (15) are respectively fixed with the cylinder seat (2) and the connector (1) through bolts.