CN112944021A

CN112944021A - Flow valve under severe working conditions

Info

Publication number: CN112944021A
Application number: CN202110326484.9A
Authority: CN
Inventors: 肖翰; 张寿根; 叶一舟; 萧亚兵
Original assignee: Zhejiang Gute Pneumatic Machinery Co ltd
Current assignee: Zhejiang Gute Pneumatic Machinery Co ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-06-11

Abstract

The invention provides a flow valve under severe working conditions, which relates to the technical field of valves and solves the problems that the existing valve is easy to leak under the working conditions of excessive abrasion or temperature alternation in the practical application process, so that the sealing is unreliable, the service life of the valve is shortened, and furthermore, particle media cannot be prevented from entering a packing box, the sealing of the packing is influenced, and the problem that the lateral deviation of a valve rod caused by an actuator in the operation process can cause the deformation of the sealing packing and the sealing leakage caused by the uneven pressing force cannot be avoided, wherein the valve comprises a conveying mechanism which is arranged at the inner side of a circulation mechanism, and in the invention, as a dynamic spring is adopted in a valve body to provide continuous and stable pressing force, the hidden danger of easy leakage under the working conditions of excessive abrasion or temperature alternation is eliminated, so that the sealing is more reliable, the service life is longer.

Description

Flow valve under severe working conditions

Technical Field

The invention belongs to the technical field of valves, and particularly relates to a flow valve under severe working conditions.

Background

The valves are pipe fittings for opening and closing pipes, controlling flow direction, regulating and controlling parameters (temperature, pressure and flow) of a conveying medium, and can be classified into shut-off valves, check valves, regulating valves and the like according to their functions.

For example, application No.: CN202010356395.4, the present invention discloses a flow straightener for the outflow of a process valve, a flow straightener is installed at the outlet of the process valve, and the flow straightener comprises, from upstream to downstream: an inlet member, a central member and an outlet member. When fluid is conveyed in a pipeline, the opening control of the flow valve can cause non-uniform eccentric turbulent flow near the outlet of the flow valve, and the stability of the flow at the outlet is seriously influenced along with the generation of vortex. The device can improve the turbulent flow effectively through gathering, scattering, vortex elimination and integration treatment with the outlet turbulent flow that flow valve aperture regulation and control arouses to reach effectual rectification effect, thereby improved the stability that flow valve outlet flows. In addition, the invention can be used in cooperation with a pipeline fluid measuring device, is beneficial to the stable flow signal acquisition of the pipeline fluid measuring device and improves the measurement precision.

Based on the search of the above patent and the discovery of combining the equipment in the prior art, the above equipment can rectify when being applied, but in the practical application process, the valve has the hidden danger that the valve is easy to leak due to excessive wear or temperature alternation working conditions, so that the sealing is unreliable, the service life of the valve is shortened, and furthermore, the sealing of the packing can not be influenced because particle media can not be prevented from entering the packing box, and the lateral deviation of the valve rod caused by an actuator in the operation process can not be avoided, so that the deformation of the packing and the sealing leakage caused by the uneven pressing force can be caused.

Disclosure of Invention

In order to solve the technical problems, the invention provides a flow valve under a severe working condition, which aims to solve the problems that the existing practical application process has the hidden trouble that the valve is easy to leak due to excessive abrasion or temperature alternation working conditions, so that the sealing is unreliable, the service life of the valve is shortened, particle media cannot be prevented from entering a packing box, the sealing of the packing is influenced, and the sealing leakage caused by the deformation of the sealing packing and the uneven pressing force due to the lateral deviation of a valve rod caused by an actuator in the operation process cannot be avoided.

The invention relates to a purpose and an effect of a flow valve under severe working conditions, which are achieved by the following specific technical means:

a flow valve under severe working conditions comprises a conveying mechanism, an auxiliary mechanism and an anti-impact mechanism, wherein the conveying mechanism is arranged at the inner side of a circulating mechanism; the auxiliary mechanism is arranged at the inner bottom side position of the circulating mechanism; the anti-impact mechanism is arranged at the left position of the circulating mechanism, and the sealing mechanism is screwed on the left side of the anti-impact mechanism; sealing mechanism is including body, footstock and bolt, the bolt is equipped with everywhere altogether, and everywhere bolt be the annular array and twist the footstock and connect the left side position at the body, and body fixed connection is in the left side position of anti mechanism of dashing under the installation state.

Furthermore, the circulation mechanism comprises a valve body, a guide port A, a guide port B and a base plate, wherein circular through holes are formed in the upper side and the lower side of the outer peripheral surface of the valve body, the through hole in the lower side is larger than the through hole in the upper side, the guide port A and the guide port B are fixedly connected to the outer side positions of the upper round hole and the lower round hole formed in the outer peripheral surface of the valve body respectively, the guide port A and the guide port B are designed in an asymmetric height drop structure, a high-temperature-resistant wear-resistant material is adopted in an inner wall flow channel of the valve body, and the base plate is screwed to the right side position;

furthermore, the conveying mechanism comprises a gate valve, a valve rod and a valve plate, the valve rod is provided with two positions, the two valve rods are respectively arranged at the upper side and the lower side of the peripheral surface of the gate valve, and the valve plate is fixedly connected to the top end surface of the valve plug positioned at the upper side;

furthermore, the conveying mechanism also comprises a valve plug and a flow pipe, wherein the valve plug is provided with two positions, the two valve plugs are respectively and fixedly connected to the top end surface and the bottom end surface of the two valve rods, the flow pipe is arranged at the left end surface of the gate valve, and the gate valve is arranged at the inner side position of the valve body in the installation state;

furthermore, the auxiliary mechanism comprises an auxiliary mechanism, a handle, a pumping machine and a dividing and combining head, the handle is designed in an L-shaped structure, a driving shaft perpendicular to the handle is installed on the right side of the handle, the driving shaft is connected with a switch of the pumping machine, the dividing and combining head is designed in a cylindrical structure, the dividing and combining head is installed at the top end of the pumping machine, and the diameter of the dividing and combining head is consistent with that of the pumping machine;

furthermore, the auxiliary mechanism also comprises air holes and blocking blocks, wherein the air holes are in a rectangular structural design, the air holes are longitudinally arranged at four positions, the air holes at four positions are arranged on the outer peripheral surface of the split head in an annular array, the blocking blocks are in a split structural design with four equally divided parts in a whole cylindrical shape, arc grooves are arranged at the inner sides of the blocking blocks at four positions, and a round hole is formed by the arc grooves and the arc grooves together, and the blocking blocks at four positions are arranged at the outer side of the split head in an annular array and matched with the air holes;

furthermore, the anti-impact mechanism comprises a cover plate, a base, a dynamic spring and a group rod, the base is inserted in the center of the left end face of the cover plate, the dynamic spring is further installed on the left side of the base, a circular plate is further installed on the left side of the dynamic spring, the group rods with the same size are further installed on the left side of the circular plate, and the cover plate is screwed on the left side of the valve body in the installation state.

Compared with the prior art, the invention has the following beneficial effects:

in the invention, because the guide port A and the guide port B are designed in an asymmetric height drop structure, the inner wall flow passage of the valve body is made of high-temperature resistant and wear resistant materials, therefore, the valve can bear the working condition of high temperature and high pressure, the sealing performance of Mpa is improved, the erosion and abrasion resistance of the valve body is improved, and an auxiliary mechanism is also arranged in the guide opening B, wherein the handle is designed in an L-shaped structure, the right side of the handle is provided with a driving shaft which is vertical to the handle, and the driving shaft is connected with the switch of the air pumping machine, the dividing and combining head is designed in a cylindrical structure, and the dividing and combining head is arranged at the top end of the air pumping machine, therefore when the valve body needs to be replaced and maintained, the pump air can be started through the driving shaft by rotating the handle, the block is pneumatically expanded through the air holes formed on the separating and combining head, so as to block the guide opening B, thereby preventing the problem that the valve body and the components thereof are difficult to replace due to water.

On the other hand, because the dynamic spring is adopted in the valve body to provide continuous and stable pressing force, the hidden danger of leakage caused by excessive abrasion or temperature alternation is eliminated, the sealing is more reliable, and the service life is longer.

Drawings

Fig. 1 is a schematic diagram of an enlarged portion of the structure of the present invention.

Fig. 2 is a schematic front view of the present invention in a half-section state.

Fig. 3 is an enlarged schematic view of the structure at a in fig. 1 according to the present invention.

Fig. 4 is an enlarged schematic view of the invention at B in fig. 1.

Fig. 5 is an enlarged view of the structure of fig. 1 at C according to the present invention.

Fig. 6 is an enlarged schematic view of the structure of fig. 1 at D according to the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a flow-through mechanism; 101. a valve body; 102. a guide opening A; 103. a guide opening B; 104. a substrate; 2. a conveying mechanism; 201. a gate valve; 202. a valve stem; 203. a valve plate; 204. a valve plug; 205. a flow tube; 3. an auxiliary mechanism; 301. a handle; 302. pumping an air machine; 303. a separation and combination head; 304. air holes; 305. blocking; 4. an impact resistant mechanism; 401. a cover plate; 402. a base; 403. a dynamic spring; 404. assembling the rods; 5. a sealing mechanism; 501. a pipe body; 502. a top seat; 503. and (4) bolts.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 6:

the invention provides a flow valve under severe working conditions, which comprises: the conveying mechanism 2, the auxiliary mechanism 3 and the impact-resisting mechanism 4, wherein the conveying mechanism 2 is arranged at the inner side position of the circulating mechanism 1; the auxiliary mechanism 3 is arranged at the inner bottom position of the circulating mechanism 1; the anti-impact mechanism 4 is arranged at the left position of the circulating mechanism 1, and the sealing mechanism 5 is screwed on the left side of the anti-impact mechanism 4; the sealing mechanism 5 comprises a pipe body 501, a top seat 502 and bolts 503, the bolts 503 are arranged in four positions, the top seat 502 is screwed on the left side of the pipe body 501 by the bolts 503 in an annular array, and the pipe body 501 is fixedly connected to the left side of the impact resisting mechanism 4 in an installation state.

The circulating mechanism 1 comprises a valve body 101, a guide port A102, a guide port B103 and a base plate 104, circular through holes are formed in the upper side and the lower side of the outer peripheral surface of the valve body 101, the through hole on the lower side is larger than the through hole on the upper side, the guide port A102 and the guide port B103 are respectively and fixedly connected to the outer side positions of the upper round hole and the lower round hole formed in the outer peripheral surface of the valve body 101, the guide port A102 and the guide port B103 are designed to be asymmetric height drop structures, the inner wall of the valve body 101 is made of high-temperature-resistant wear-resistant materials, the base plate 104 is screwed on the right side position of the inner wall of the valve body 101 through a bolt 503, and due to the fact that a dynamic spring 403 is adopted inside the valve body 101 to provide continuous and stable pressing force, the.

The conveying mechanism 2 includes a gate valve 201, a valve rod 202 and a valve plate 203, the valve rod 202 has two positions, the two valve rods 202 are respectively installed at the upper and lower sides of the outer peripheral surface of the gate valve 201, and the valve plate 203 is fixedly connected to the top end surface of a valve plug 204 located at the upper side.

The conveying mechanism 2 further includes a valve plug 204 and a flow pipe 205, the valve plug 204 is provided with two positions, the two positions of the valve plug 204 are respectively and fixedly connected to the top end face and the bottom end face of the two positions of the valve rod 202, the flow pipe 205 is installed at the left end face position of the gate valve 201, and the gate valve 201 is installed at the inner side position of the valve body 101 in the installation state.

Wherein, complementary unit 3 is including complementary unit 3, handle 301, pump mechanism of qi 302 and deciliter head 303, and handle 301 is L shape structural design, and the right side of handle 301 installs rather than the drive shaft of looks vertically to the drive shaft links to each other with the switch of pump mechanism of qi 302, divides and to be cylindrical structural design with head 303, and deciliter head 303 installs the top position at pump mechanism of qi 302, and divides the diameter of the head 303 of closing to be unanimous with the diameter of pump mechanism of qi 302.

The auxiliary mechanism 3 further comprises an air hole 304 and a blocking block 305, the air hole 304 is of a rectangular structural design, the air holes 304 are longitudinally formed in four positions, the air holes 304 are arranged on the outer peripheral surface of the split head 303 in an annular array mode, the blocking block 305 is of a four-piece split structural design which is of a whole cylindrical shape and is equally divided into four pieces, arc grooves are formed in the inner sides of the blocking blocks 305, a round hole is formed jointly, and the blocking blocks 305 are arranged on the outer side of the split head 303 in an annular array mode and are matched with the air holes 304.

The impact-resistant mechanism 4 comprises a cover plate 401, a base 402, a dynamic spring 403 and a group rod 404, the base 402 is inserted into the center of the left end face of the cover plate 401, the dynamic spring 403 is further installed on the left side of the base 402, a circular plate is further installed on the left side of the dynamic spring 403, two group rods 404 with the same size are further installed on the left side of the circular plate, and the cover plate 401 is screwed on the left side of the valve body 101 in the installation state.

When in use: the valve body 101 in the circulating mechanism 1 is firstly installed at a proper position of a water pipe, circular through holes are arranged on the upper side and the lower side of the outer peripheral surface of the valve body 101 in the circulating mechanism 1, the through hole positioned on the lower side is larger than the through hole positioned on the upper side, the guide port A102 and the guide port B103 are respectively and fixedly connected at the outer side positions of the upper round hole and the lower round hole arranged on the outer peripheral surface of the valve body 101, the guide port A102 and the guide port B103 are designed in an asymmetric height drop structure, a high-temperature resistant and wear-resistant material is adopted in a flow passage on the inner wall of the valve body 101, so that the valve can bear the high-temperature working condition of 400 ℃, the high-pressure tightness of 1.0Mpa is realized, the scouring and wear resistance of the valve body 101 is improved, the auxiliary mechanism 3 is also installed inside the guide port B103, the handle 301 is designed in an L-shaped structure, the driving shaft which is, the dividing and combining head 303 is arranged at the top end of the pumping machine 302, so that when the valve body 101 needs to be replaced and maintained, the pumping machine 302 can be started through the driving shaft by rotating the handle 301, and then the block 305 is pneumatically expanded through the air hole 304 formed in the dividing and combining head 303, so as to block the guide opening B103, and further the problem that replacement is difficult due to the fact that the valve body 101 and components thereof are replaced with water is solved;

on the other hand, a base 402 is inserted into the center of the left end face of the cover plate 401 in the impact mechanism 4, a dynamic spring 403 is further installed on the left side of the base 402, a circular plate is further installed on the left side of the dynamic spring 403, two groups of rods 404 with the same size are further installed on the left side of the circular plate, and the dynamic spring 403 is adopted inside the valve body 101 to provide continuous and stable pressing force, so that the hidden danger of leakage easily caused by excessive wear or temperature alternation working conditions is eliminated, the sealing is more reliable, and the service life is longer.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A kind of harsh working condition flow valve, characterized by: the device comprises a conveying mechanism (2), an auxiliary mechanism (3) and an impact-resistant mechanism (4), wherein the conveying mechanism (2) is arranged at the inner side of a circulating mechanism (1); the auxiliary mechanism (3) is arranged at the bottom position inside the circulating mechanism (1); the anti-impact mechanism (4) is arranged at the left side position of the circulating mechanism (1), and the sealing mechanism (5) is screwed on the left side of the anti-impact mechanism (4); sealing mechanism (5) is including body (501), footstock (502) and bolt (503), bolt (503) are equipped with everywhere altogether, and bolt (503) everywhere are the left side position of annular array with footstock (502) twist-on at body (501), and body (501) fixed connection is in the left side position of anti impact mechanism (4) under the mounted state.

2. A harsh condition process valve as defined in claim 1 wherein: circulation mechanism (1) is including valve body (101), lead mouthful A (102), lead mouthful B (103) and base plate (104), circular through-hole has all been seted up to both sides about the outer peripheral face of valve body (101), and is located the through-hole of downside and be greater than the through-hole of upside, lead mouthful A (102) and lead mouthful B (103) two upper and lower round hole outside positions of seting up on valve body (101) outer peripheral face respectively fixed connection to lead mouthful A (102) and lead mouthful B (103) for asymmetric height fall structural design, the inner wall runner of valve body (101) adopts high temperature resistant wear-resisting material, base plate (104) are twisted through bolt (503) and are connect the inner wall right side position at valve body (101).

3. A harsh condition process valve as defined in claim 1 wherein: conveying mechanism (2) are including gate valve (201), valve rod (202) and valve plate (203), valve rod (202) are equipped with two altogether, and both sides position about the outer peripheral face of gate valve (201) is installed respectively to two valve rods (202), and valve plate (203) fixed connection is in the top end face position of valve plug (204) that is located the upside.

4. A harsh condition process valve as defined in claim 3 wherein: conveying mechanism (2) are still including valve plug (204) and flow tube (205), valve plug (204) are equipped with two places altogether, and two valve plug (204) fixed connection respectively in the top end face and the bottom end face position of two valve rod (202), the left end face position at gate valve (201) is installed in flow tube (205), and the inboard position at valve body (101) is installed in gate valve (201) under the mounted state.

5. A harsh condition process valve as defined in claim 1 wherein: complementary unit (3) are including complementary unit (3), handle (301), pump gas machine (302) and divide and shut head (303), handle (301) are L shape structural design, and the right side of handle (301) install rather than the looks vertically drive shaft to the drive shaft links to each other with the switch of pump gas machine (302), divide and shut head (303) for cylindrical structural design, and divide and shut head (303) and install the top position at pump gas machine (302), and the diameter that divides and shut head (303) is unanimous with the diameter of pump gas machine (302).

6. A harsh condition process valve as defined in claim 5 wherein: the auxiliary mechanism (3) further comprises an air hole (304) and a blocking block (305), the air hole (304) is of a rectangular structure design, the air holes (304) in all four positions are longitudinally formed, the air holes (304) in all four positions are formed in the outer peripheral face of the split-combined head (303) in an annular array mode, the blocking block (305) is of a whole cylindrical structure design divided into four split-type structures in all equal parts, arc grooves are formed in the inner sides of the blocking blocks (305) in all four positions, a round hole is formed jointly, and the blocking blocks (305) in all four positions are installed on the outer side of the split-combined head (303) in an annular array mode and are matched with the air hole (304).

7. A harsh condition process valve as defined in claim 1 wherein: the anti-impact mechanism (4) comprises a cover plate (401), a base (402), a dynamic spring (403) and a group rod (404), the base (402) is inserted in the center of the left end face of the cover plate (401), the dynamic spring (403) is further installed on the left side of the base (402), a circular plate is further installed on the left side of the dynamic spring (403), the group rods (404) with the same size are further installed on the left side of the circular plate, and the cover plate (401) is screwed on the left side of the valve body (101) in the installation state.