CN210196554U

CN210196554U - Two-dimensional primary and secondary compensation spray-rotation steam pipeline quick switching device

Info

Publication number: CN210196554U
Application number: CN201920604164.3U
Authority: CN
Inventors: Jing Xu; 许静; Yan Bai; 柏燕
Original assignee: Hangzhou Electronic Science and Technology University
Current assignee: Hangzhou Dianzi University; Hangzhou Electronic Science and Technology University
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-03-27
Anticipated expiration: 2029-04-29

Abstract

A two-dimensional primary and secondary compensation spray-spinning steam pipeline quick switching device belongs to the technical field of petrochemical equipment. The valve comprises a first valve body, wherein a first valve rod which is in seal movable fit with the first valve body is arranged in the first valve body, a first rear valve plate is arranged at the rear part of the first valve rod, the first rear valve plate divides a valve body cavity into a first valve cavity A and a first valve cavity B, a first valve disc is arranged at the front end of the first valve rod, and the first valve disc extends into the pipeline cavity to be in seal fit with or separated from a first pipeline port; the outer side of the first valve body is provided with a second valve body with the same structure in a matching mode, and the reversing valve is connected with the first valve body and the second valve body. Above-mentioned two-dimensional primary and secondary compensation spouts technical scheme of whirl steam conduit fast switch device, it has two-way parallel valve, and synchronous drive can thoroughly cut off the fluid in the pipeline, and the good reliability, stability is high, and is safe in utilization, convenient. The utility model discloses at main valve core, push away under the combined action of minivalve soon, showing and having reduced intensity of labour, improved work efficiency.

Description

Two-dimensional primary and secondary compensation spray-rotation steam pipeline quick switching device

Technical Field

The utility model belongs to the technical field of petrochemical industry equipment, specifically be a two-dimensional primary and secondary compensation spouts fast switch device of rotary steam pipeline.

Background

The electromagnetic valve with manual function is widely applied to control systems of pipelines of air, water, hot water, gas, natural gas, diesel oil and the like, and is used for controlling the flow or stop of fluid. When the valve needs to be opened, the handle is pulled by force, and the valve is opened; when the valve needs to be closed, the manual handle is pressed forcibly, and the valve is closed. However, in the special field of petrochemical pipelines, because of the particularity of stored substances, such as petroleum and gasoline, and the use of electromagnetic valves for opening and closing, great potential safety hazards exist, and therefore mechanical valves are generally adopted. However, the existing manual reversing valve is pulled manually, the pulling frequency is high, the operation is tired, and the working efficiency is low; and the valve core of the existing manual reversing valve does reciprocating motion and can not rotate, the valve core is easy to clamp, and the working efficiency is obviously reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above problems in the prior art, the present invention is directed to a two-dimensional primary and secondary compensation spray-spinning steam pipeline fast switching device, which has two-way parallel valves, is driven synchronously, can thoroughly intercept the fluid in the pipeline, and has good reliability, high stability, and safe and convenient use; when the handle is pulled by hands, the handle is easy and labor-saving, and the working efficiency is obviously improved. The utility model discloses at main valve core, push away under the combined action of minivalve soon, showing and having reduced intensity of labour, improved work efficiency.

The two-dimensional primary and secondary compensation spray-spinning steam pipeline quick switching device is characterized by comprising a first valve body, wherein a first valve rod which is in seal movable fit with the first valve body is arranged in the first valve body; the outer side of the first valve body is provided with a second valve body in a matched manner, a second valve rod in seal movable fit with the second valve body is arranged in the second valve body, the rear part of the second valve rod is provided with a second rear valve plate, the second rear valve plate divides the valve body cavity into a second valve cavity A and a second valve cavity B, the front end of the second valve rod is provided with a second valve disc, and the second valve disc extends into the pipeline cavity to be in seal fit with or separated from the second pipeline opening; the first valve cavity A is communicated with the second valve cavity A through a first passage, and the first valve cavity B is communicated with the second valve cavity B through a second passage;

the reversing valve comprises a valve body formed by connecting a first shell, a second shell and a third shell in a matching way, wherein an oil return cavity and a third backflow port are arranged in the first shell, a main valve core is arranged in the second shell, a reversing valve sleeve is arranged in the middle of the main valve core in a matching way, an oil return cavity I, a reversing cavity A, a high-pressure cavity, a reversing cavity B, an oil return cavity II, a left H cavity, a pressure compensation cavity and a right H cavity are formed between the main valve core and the reversing valve sleeve and the second shell, and the first backflow port, the reversing port A, a high-pressure oil inlet, a reversing port B and a second backflow port are correspondingly arranged on the second shell; when the main valve core moves rightwards, the first oil return cavity is communicated with the reversing cavity A; when the main valve core moves leftwards, the oil return cavity II is communicated with the reversing cavity B; the left end of the main valve core is tightly matched with a rotating disc, the rotating disc is installed in the oil return cavity, the main valve cavity of the main valve core is communicated with a rotating disc cavity of the rotating disc, a rotary nozzle communicated with the rotating disc cavity is arranged on the rotating disc, a valve sleeve is arranged between the main valve core and the first shell and the second shell in a matched mode, and the right end of the main valve core is connected with a handle in a matched mode through a first universal coupling; a rotary-push small valve is arranged in a casing II below the main valve core in a matching manner, a check valve which is conducted from left to right is arranged in the rotary-push small valve, a high-pressure leading port, a flow passage plugging port, a rotary-spraying flow passage, a rotary-spraying plugging port and a small valve rotary nozzle are arranged on the rotary-push small valve on the left side of the check valve, a rotary-spraying leading port communicated with the rotary-spraying flow passage is correspondingly arranged on the pipe wall of the rotary-push small valve, a low-pressure leading port and a pressure compensation leading port are arranged on the rotary-push small valve on the left side of the check valve, a secondary valve cavity is arranged on the left side of the; the secondary valve cavity is connected with a valve sleeve through hole arranged on the valve sleeve through a plugging flow channel arranged on the second shell and is communicated with the main valve cavity and the rotary disc cavity; the right side of the small rotary pushing valve is matched and connected with the handle through a universal coupling II, when the small rotary pushing valve moves rightwards, the high-pressure guide port is communicated with the high-pressure cavity, and when the small rotary pushing valve moves leftwards, the low-pressure guide port is communicated with the oil return cavity II; the small valve rotary nozzle sprays hydraulic oil to drive the rotary push small valve to rotate; the first valve cavity A is communicated with the reversing port A, and the first valve cavity B is communicated with the reversing port B.

The two-dimensional primary and secondary compensation rotary spraying steam pipeline quick switching device is characterized in that 2-5 convex columns are arranged at the left end of a rotary pushing small valve, three convex columns are preferably arranged, a small valve rotary nozzle is arranged on the side wall of each convex column, and the injection angle of the small valve rotary nozzle and the left end face form an included angle of 20-40 degrees, preferably an included angle of 30 degrees.

The two-dimensional primary and secondary compensation spray-spinning steam pipeline quick switching device is characterized in that a valve disc is arranged at the front end of a valve rod and is locked by a nut I; the front end of the second valve rod is provided with a second valve disc and is locked by a second nut.

The two-dimensional primary and secondary compensation spray-spinning steam pipeline quick switching device is characterized in that a first plugging screw is correspondingly arranged on a second shell below a plugging flow channel.

The two-dimensional primary and secondary compensation spray-spinning steam pipeline quick switching device is characterized in that a universal coupling is in rotating fit with a handle shaft coupling through a coupling connecting rod, and an elliptical hole for shaft coupling is correspondingly arranged on the coupling connecting rod; a round hole for shaft connection is arranged at the right side of the rotary push small valve and corresponds to the shaft connection rotating part of the handle; when the handle is pushed left and right, the elliptical hole and the circular hole form a phase difference.

The two-dimensional primary and secondary compensation spray-spinning steam pipeline quick switching device is characterized in that the lower portion of a handle is in shaft connection and rotating fit with a connecting rod arranged on a shell III, and a middle round hole for shaft connection is correspondingly formed in the connecting rod.

The two-dimensional primary and secondary compensation spray-rotation steam pipeline rapid switching device is characterized in that three rotary nozzles communicated with a rotary disk cavity are uniformly distributed on a rotary disk.

The two-dimensional primary and secondary compensation spray-spinning steam pipeline quick switching device is characterized in that a second blocking screw correspondingly matched with the pressure compensation cavity is arranged on a second shell above the pressure compensation cavity.

The two-dimensional primary and secondary compensation spray-spinning steam pipeline quick switching device is characterized in that a bearing and a bearing seat are arranged on the left side of a rotating disk in a matched mode, a spring seat is correspondingly arranged on the inner side of a shell, a spring is arranged between the spring seat and the bearing seat in a matched mode, and a jacking position screw matched with the spring seat in an elastic jacking mode is arranged on the left side of the spring seat.

The technical scheme of the two-dimensional primary and secondary compensation spray-rotation steam pipeline quick switching device is provided with the bidirectional parallel valves, synchronous driving is realized, fluid in the pipeline can be cut off thoroughly, the reliability is good, the stability is high, and the use is safe and convenient; when the handle is pulled by hands, the handle is easy and labor-saving, and the working efficiency is obviously improved. The main valve core of the reversing valve cannot be clamped, the viscous resistance is reduced, the handle is pulled by hands easily and labor-saving, and the working efficiency is obviously improved; and labor is saved when the handle is manually pushed. And the rotary push small valve can also rotate under the action of hydraulic oil sprayed from the rotary spraying port, and the rotary push small valve cannot be clamped, so that the viscous resistance is reduced, the rotary push small valve is not easy to wear, and the rotary push small valve is obviously more labor-saving when the handle is pulled by hands. The utility model discloses at main valve core, push away under the combined action of minivalve soon, showing and having reduced intensity of labour, improved work efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the reversing valve of the present invention;

FIG. 3 is a schematic structural view of the main valve element of the present invention;

fig. 4 is a schematic structural view of the valve housing of the present invention;

fig. 5 is a schematic structural view of the reversing valve sleeve of the present invention;

fig. 6 is a schematic structural view of the main valve element of the present invention;

FIG. 7 is a schematic structural view of the rotary push valve of the present invention;

FIG. 8 is a schematic structural view of the left end of the rotary push small valve of the present invention;

in the figure: 1-first shell, 2-oil return cavity, 3-spring seat, 4-spring, 5-bearing seat, 6-rotating disk, 601-rotating nozzle, 7-valve sleeve, 701-valve sleeve through hole, 8-second shell, 9-first return port, 10-main valve cavity through hole, 11-main valve core, 12-reversing port A, 13-reversing cavity A, 14-high pressure oil inlet, 15-reversing port B, 16-reversing valve sleeve, 17-reversing cavity B, 18-second return port, 19-second return port, 20-second blocking screw, 21-pressure compensation flow channel, 22-pressure compensation cavity, 23-third shell, 24-handle, 25-coupler connecting rod, 26-universal coupler, 27-elliptical hole, 28-connecting rod, 29-middle round hole, 30-right H cavity, 31-round hole, 31 a-universal coupling II, 32-left H cavity, 33-pressure compensation leading port, 34-low pressure leading port, 35-rotary push small valve, 35 a-rotary spray leading port, 35 b-rotary spray flow channel, 35 c-rotary spray flow channel plug, 35 d-small valve rotary spray port, 35 e-convex column, 36-check valve, 37-high pressure cavity, 38-high pressure leading port, 39-flow channel plug, 40-screw cover, 42-secondary valve cavity, 43-oil return cavity I, 44-plug screw I, 45-plug flow channel, 46-main valve cavity, 47-rotary disk cavity, 48-bearing, 49-return port III and 50-top screw; 51-valve body I, 52-rear valve plate I, 53-first valve cavity A, 54-first valve cavity B, 55-valve rod I, 56-valve disc I, 57-nut I, 58-pipeline, 59-pipeline port I, 60-channel I, 61-channel II, 62-second valve cavity A, 63-rear valve plate II, 64-second valve cavity B, 65-valve body II, 66-valve rod II, 67-valve disc II, 68-nut II and 69-pipeline port II.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in the figure, the pipeline safety type manual switch valve comprises a first valve body 51, a first valve rod 55 which is in seal movable fit with the first valve body 51 is arranged in the first valve body 51, a first rear valve plate 52 is arranged at the rear part of the first valve rod 55, the first rear valve plate 52 divides a valve body cavity into a first valve cavity A53 and a first valve cavity B54, a first valve disc 56 is arranged at the front end of the first valve rod 52, and the first valve disc 56 extends into the cavity of a pipeline 58 and is in seal fit with or separated from a first pipeline port 59; a second valve body 65 is arranged outside the first valve body 51 in a matched mode, a second valve rod 66 in sealing movable fit with the second valve body 65 is arranged in the second valve body 65, a second rear valve plate 63 is arranged behind the second valve rod 66, the valve body cavity is divided into a second valve cavity A62 and a second valve cavity B64 by the second rear valve plate 63, a second valve disc 67 is arranged at the front end of the second valve rod 66, and the second valve disc 67 extends into the cavity of the pipeline 58 and is in sealing fit with or separated from the second pipeline port 69; first valve chamber A53 communicates with second valve chamber A62 through passage one 60, and first valve chamber B54 communicates with second valve chamber B64 through passage two 61;

the reversing valve comprises a valve body formed by matching and connecting a first shell 1, a second shell 8 and a third shell 23, wherein a return oil cavity 2 and a return port three 49 are arranged in the first shell 1, a main valve core 11 is arranged in the second shell 8, a reversing valve sleeve 16 is arranged in the middle of the main valve core 11 in a matching way, a return oil cavity 43, a reversing cavity A13, a high pressure cavity 37, a reversing cavity B17, a return oil cavity two 19, a left H cavity 32, a pressure compensation cavity 22 and a right H cavity 30 are formed between the main valve core 11 and the reversing valve sleeve 16 and the second shell 8, and a return port one 9, a reversing port A12, a high-pressure oil inlet 14, a reversing port B15 and a return port two 18 are correspondingly arranged on the second shell 8; when the main valve core 11 moves rightwards, the first oil return cavity 43 is communicated with the reversing cavity A13; when the main valve core 11 moves leftwards, the oil return cavity II 19 is communicated with the reversing cavity B17; the main valve core 11 is characterized in that the left end of the main valve core 11 is tightly matched with a rotating disc 6, the rotating disc 6 is installed in the oil return cavity 2, a main valve cavity 46 of the main valve core 11 is communicated with a rotating disc cavity 47 of the rotating disc 6, a rotary nozzle 601 communicated with the rotating disc cavity 47 is arranged on the rotating disc 6, a valve sleeve 7 is arranged between the main valve core 11 and the first shell 1 and the second shell 8 in a matched mode, and the right end of the main valve core 11 is connected with a handle 24 in a matched mode through a universal coupling I26; a rotary-push small valve 35 is arranged in a matching manner in the second shell 8 below the main valve core 11, a check valve 36 which is communicated from left to right is arranged in the rotary-push small valve 35, a high-pressure guide port 38, a flow channel blockage 39, a rotary-spraying flow channel 35b, a rotary-spraying blockage 35c and a small-valve rotary-spraying port 35d are arranged on the rotary-push small valve 35 on the left side of the check valve 36, a rotary-spraying guide port 35a and a small-valve rotary-spraying port 35d which are communicated with the rotary-spraying flow channel 35b are correspondingly arranged on the pipe wall of the rotary-push small valve 35, a low-pressure guide port 34 and a pressure compensation guide port 33 are arranged on the rotary-push small valve 35 on the left side of the check valve 36, a secondary valve cavity 42 is arranged on the left side of; the secondary valve cavity 42 is connected with a valve sleeve through hole 701 arranged on the valve sleeve 7 through a blocking flow channel 45 arranged on the second shell 8 and then is communicated with the main valve cavity 46 and the rotary disk cavity 47; the right side of the small rotary push valve 35 is connected with the handle 24 in a matching way through a universal joint II 31a, when the small rotary push valve 35 moves rightwards, the high-pressure guide port 38 is communicated with the high-pressure cavity 37, and when the small rotary push valve 35 moves leftwards, the low-pressure guide port 34 is communicated with the oil return cavity II 19; the small valve rotary nozzle 35d injects hydraulic oil to drive the rotary push small valve 35 to rotate;

the first valve chamber a53 communicates with the direction change port a12, and the first valve chamber B54 communicates with the direction change port B15.

Furthermore, the left end of the small valve 35 is provided with 2-5 convex columns 35e, preferably three convex columns 35e, the small valve rotary nozzle 35d is arranged on the side wall of the convex column 35e, and the injection angle of the small valve rotary nozzle 35d and the left end face form an included angle of 20-40 degrees, preferably 30 degrees.

Further, a first valve disc 56 is arranged at the front end of the first valve rod 55 and is locked through a first nut 57; the front end of the second valve rod 66 is provided with a second valve disc 67 and is locked by a second nut 68.

Furthermore, a first plugging screw 44 and a screw cover 40 are correspondingly arranged on the second shell 8 below the first plugging flow channel 45, and the flow of high-pressure oil in the first plugging flow channel 45 can be adjusted by adjusting the size of a gap between the first plugging screw 44 and the first plugging flow channel 45, so that the rotation speed of a main valve is adjusted.

Further, the universal coupling 26 is in shaft connection and rotation fit with the handle 24 through a coupling connecting rod 25, and an elliptical hole 27 for shaft connection is correspondingly arranged on the coupling connecting rod 25; a round hole 31 for shaft connection is arranged at the right side of the rotary push small valve 35 corresponding to the shaft connection rotating part of the handle 24; when the handle 24 is pushed left and right, the elliptical hole 27 and the circular hole 31 form a phase difference, and the phase difference is set, so that when the handle 24 is pushed left and right, the rotary push small valve 35 always moves left and right before the main valve core 11.

Furthermore, the lower part of the handle 24 is in shaft connection and rotation fit with a connecting rod 28 arranged on the third shell 23, a middle round hole 29 for shaft connection is correspondingly arranged on the connecting rod 28, and the connecting rod 28 plays a lever role.

Furthermore, three rotary nozzles 601 communicated with the rotary disc cavity 47 are uniformly distributed on the rotary disc 6, and the three rotary nozzles 601 laterally spray high-pressure oil to drive the rotary disc 6 to rotate.

Further, a second blocking screw 20 correspondingly matched with the pressure compensation cavity 22 is arranged on the second shell 8 above the pressure compensation cavity 22, and in the reversing process, the pressure compensation cavity 22 is in a high-pressure stage, and the pressure relief time is adjusted by adjusting a gap between the second blocking screw 20 and the pressure compensation flow channel 21.

Further, the left side of the rotating disc 6 is provided with a bearing 48 and a bearing seat 5 in a matching manner, the inner side of the first shell 1 is correspondingly provided with a spring seat 3, a spring 4 is arranged between the spring seat 3 and the bearing seat 5 in a matching manner, and the left side of the spring seat 3 is provided with a top position screw 50 which is in contact fit with the elastic top of the spring seat. This structure setting not only can be through the elasticity size of adjusting the position adjustment rotary disk 6 right of top position screw 50, can also make rotary disk 6 steadily rotate, and stability is better.

The handle 24 is pushed leftwards, due to the phase difference formed by the elliptical hole 27 and the circular hole 31, the rotary push small valve 35 connected with the lower part of the handle 24 firstly moves rightwards, the high-pressure guide port 38 is communicated with the high-pressure cavity 37, the low-pressure guide port 34 and the pressure compensation guide port 33 are communicated with the pressure compensation cavity 22, the right H cavity 30 communicated with the pressure compensation cavity 22 forms a high-pressure oil cavity, and left pushing force is provided for the main valve element 11, so that labor is saved when the handle 24 is pushed manually; meanwhile, high-pressure oil passes through the small valve rotary nozzle 35d, the secondary valve cavity 42, the blocking flow channel 45, the main valve cavity 46 and the rotary disk cavity 47 and is finally sprayed out from the rotary nozzle 601 on the rotary disk 6, the rotary disk 6 rotates to drive the main valve core 11 which is tightly matched and connected with the rotary disk to rotate together, the main valve core 11 cannot be clamped, the viscous resistance is reduced, the handle 24 is pulled by hands easily and labor-saving, and the working efficiency is obviously improved; in the open state, main spool 11 is always in a rotated state. The handle 24 is pushed rightwards, due to the phase difference formed by the elliptical hole 27 and the circular hole 31, the small rotary push valve 35 connected with the lower portion of the handle 24 firstly moves leftwards, the high-pressure guide port 38 is not communicated with the high-pressure cavity 37, due to the arrangement of the check valve 36, hydraulic oil in the oil return cavity II 19 and the pressure compensation cavity 22 cannot flow back to the high-pressure cavity 37, and the hydraulic oil flows back from the return port II 18.

When the reversing valve is switched to a reversing port A12, a first valve cavity A53 is communicated with a reversing port A12, the first valve cavity A53 is communicated with a second valve cavity A62 through a first channel 60, hydraulic oil is filled in the first valve cavity A53 and the second valve cavity A62, a first valve rod 52 and a first valve disc 56 arranged at the front end of the first valve rod are synchronously pushed to move downwards, the first valve disc 56 is in sealing fit with a first pipeline port 59, a second valve disc 67 arranged at the front end of the second valve rod 66 is in sealing fit with a second pipeline port 69, and fluid in a pipeline 58 can be completely intercepted; when the reversing valve is switched to a reversing port B15, the first valve cavity B54 is communicated with the second valve cavity B64 through a second channel 61, the first valve cavity B54 and the second valve cavity B64 are filled with hydraulic oil, the first valve rod 52 and a first valve disc 56 arranged at the front end of the first valve rod are synchronously pushed to move upwards, the first valve disc 56 is separated from a first pipeline port 59, the second valve rod 66 and the front end of the second valve rod are provided with a second valve disc 67 which moves upwards, the second valve disc 67 is separated from a second pipeline port 69, and a pipeline 58 is opened; the structure has good reliability, high stability and safe and convenient use. And the small valve 35 can be rotated under the action of hydraulic oil sprayed from the small valve rotary nozzle 35d, so that the small valve 35 can not be clamped, the viscous resistance is reduced, the abrasion is not easy to occur, and the labor is obviously saved when the handle is pulled by hands. The utility model discloses under main valve element 11, the combined action that pushes away little valve 35 soon, showing and having reduced intensity of labour, improved work efficiency.

Claims

1. A two-dimensional primary and secondary compensation spray-rotation steam pipeline quick switching device is characterized by comprising a first valve body (51), wherein a first valve rod (55) in sealing movable fit with the first valve body (51) is arranged in the first valve body (51), a first rear valve plate (52) is arranged at the rear part of the first valve rod (55), a valve body cavity is divided into a first valve cavity A (53) and a first valve cavity B (54) by the first rear valve plate (52), a first valve disc (56) is arranged at the front end of the first valve rod (55), and the first valve disc (56) extends into the cavity of a pipeline (58) to be in sealing fit with or separated from a pipeline port I (59); a second valve body (65) is arranged on the outer side of the first valve body (51) in a matched mode, a second valve rod (66) in seal movable fit with the second valve body (65) is arranged in the second valve body (65), a second rear valve plate (63) is arranged at the rear part of the second valve rod (66), the valve body cavity is divided into a second valve cavity A (62) and a second valve cavity B (64) by the second rear valve plate (63), a second valve disc (67) is arranged at the front end of the second valve rod (66), and the second valve disc (67) extends into the cavity of the pipeline (58) to be in seal fit with or separate; the first valve cavity A (53) is communicated with the second valve cavity A (62) through a first passage (60), and the first valve cavity B (54) is communicated with the second valve cavity B (64) through a second passage (61);

the reversing valve comprises a valve body formed by connecting a first shell (1), a second shell (8) and a third shell (23) in a matching manner, wherein an oil return cavity (2) and a third return port (49) are arranged in the first shell (1), a main valve core (11) is arranged in the second shell (8), a reversing valve sleeve (16) is arranged in the middle of the main valve core (11) in a matching manner, a first return cavity (43), a reversing cavity A (13), a high pressure cavity (37), a reversing cavity B (17), a second return cavity (19), a left H cavity (32), a pressure compensation cavity (22) and a right H cavity (30) are formed between the main valve core (11) and the reversing valve sleeve (16) and the second shell (8), and a first return port (9), a reversing port A (12), a high-pressure oil inlet (14), a reversing port B (15) and a second return port (18) are correspondingly arranged on the second; when the main valve core (11) moves rightwards, the first oil return cavity (43) is communicated with the reversing cavity A (13); when the main valve core (11) moves leftwards, the oil return cavity II (19) is communicated with the reversing cavity B (17); the oil return valve is characterized in that the left end of a main valve core (11) is tightly matched with a rotating disc (6), the rotating disc (6) is installed in the oil return cavity (2), a main valve cavity (46) of the main valve core (11) is communicated with a rotating disc cavity (47) of the rotating disc (6), a rotating nozzle (601) communicated with the rotating disc cavity (47) is arranged on the rotating disc (6), a valve sleeve (7) is arranged between the main valve core (11) and a first shell (1) and a second shell (8) in a matched mode, and the right end of the main valve core (11) is connected with a handle (24) in a matched mode through a universal coupling (26); a rotary-push small valve (35) is arranged in a second shell (8) below the main valve core (11) in a matching manner, a check valve (36) which is communicated from left to right is arranged in the rotary-push small valve (35), a high-pressure guide port (38), a flow channel blocking port (39), a rotary-spraying flow channel (35 b), a rotary-spraying blocking port (35 c) and a small-valve rotary-spraying port (35 d) are arranged on the rotary-push small valve (35) on the left side of the check valve (36), a rotary-spraying guide port (35 a) communicated with the rotary-spraying flow channel (35 b) is correspondingly arranged on the pipe wall of the rotary-push small valve (35), a low-pressure guide port (34) and a pressure compensation guide port (33) are arranged on the rotary-push small valve (35) on the left side of the check valve (36), and a secondary valve cavity (42) is communicated with the rotary-spraying flow channel (35 b) through the; the secondary valve cavity (42) is connected with a valve sleeve through hole (701) arranged on the valve sleeve (7) through a plugging flow channel (45) arranged on the second shell (8), and then is communicated with the main valve cavity (46) and the rotating disc cavity (47); the right side of the small rotary push valve (35) is connected with a handle (24) in a matching way through a universal joint II (31 a), when the small rotary push valve (35) moves rightwards, the high-pressure guide port (38) is communicated with the high-pressure cavity (37), and when the small rotary push valve (35) moves leftwards, the low-pressure guide port (34) is communicated with the oil return cavity II (19); the small valve rotary nozzle (35 d) injects hydraulic oil to drive the rotary push small valve (35) to rotate; the first valve chamber A (53) communicates with the direction change port A (12), and the first valve chamber B (54) communicates with the direction change port B (15).

2. The two-dimensional primary and secondary compensation spray-rotation steam pipeline rapid switching device as claimed in claim 1, wherein 2-5 convex columns (35 e), preferably three convex columns (35 e), are arranged at the left end of the rotary-push small valve (35), the small valve rotary nozzle (35 d) is arranged on the side wall of the convex column (35 e), and the spray angle of the small valve rotary nozzle (35 d) forms an included angle of 20-40 degrees, preferably 30 degrees, with the left end surface.

3. The quick switching device for the two-dimensional primary and secondary compensation spray-spinning steam pipeline as claimed in claim 1, wherein the front end of the valve rod I (55) is provided with a valve disc I (56) and is locked by a nut I (57); the front end of the second valve rod (66) is provided with a second valve disc (67) and is locked by a second nut (68).

4. The two-dimensional primary and secondary compensation spray-spinning steam pipeline rapid switching device as claimed in claim 1, wherein a first blocking screw (44) is correspondingly arranged on the second shell (8) below the blocking flow channel (45).

5. The two-dimensional primary and secondary compensation spray-spinning steam pipeline rapid switching device as claimed in claim 1, wherein the universal coupling (26) is in shaft connection and rotation fit with the handle (24) through a coupling connecting rod (25), and the coupling connecting rod (25) is correspondingly provided with an elliptical hole (27) for shaft connection; a round hole (31) for shaft connection is arranged at the right side of the rotary push small valve (35) corresponding to the shaft connection rotating part of the handle (24); when the handle (24) is pushed left and right, the elliptical hole (27) and the circular hole (31) form a phase difference.

6. The two-dimensional primary and secondary compensation spray-spinning steam pipeline rapid switching device as claimed in claim 1, wherein the lower part of the handle (24) is in shaft connection and rotation fit with a connecting rod (28) arranged on the third casing (23), and a middle round hole (29) for shaft connection is correspondingly arranged on the connecting rod (28).

7. The two-dimensional primary and secondary compensation spray-rotation steam pipeline rapid switching device as claimed in claim 1, characterized in that three rotary nozzles (601) communicated with the rotary disk cavity (47) are uniformly arranged on the rotary disk (6).

8. The two-dimensional primary and secondary compensation spray-spinning steam pipeline rapid switching device as claimed in claim 1, wherein a second blocking screw (20) correspondingly matched with the pressure compensation cavity (22) is arranged on the second casing (8) above the pressure compensation cavity (22).

9. The two-dimensional primary and secondary compensation spray-spinning steam pipeline rapid switching device as claimed in claim 1, wherein a bearing (48) and a bearing seat (5) are arranged on the left side of the rotating disk (6) in a matching manner, a spring seat (3) is correspondingly arranged on the inner side of the first casing (1), a spring (4) is arranged between the spring seat (3) and the bearing seat (5) in a matching manner, and a jacking screw (50) which is in contact fit with the spring seat (3) in an elastic jacking manner is arranged on the left side of the spring seat (3).