CN113916452A - Valve inner leakage detection device for chemical machinery - Google Patents

Valve inner leakage detection device for chemical machinery Download PDF

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Publication number
CN113916452A
CN113916452A CN202111109030.2A CN202111109030A CN113916452A CN 113916452 A CN113916452 A CN 113916452A CN 202111109030 A CN202111109030 A CN 202111109030A CN 113916452 A CN113916452 A CN 113916452A
Authority
CN
China
Prior art keywords
valve
balancing weight
detection device
piece
chemical machinery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111109030.2A
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Chinese (zh)
Inventor
吕运容
段志宏
连玮琦
李伟明
范志卿
丛广佩
陈法林
郭福平
孙志伟
王琪
关诗明
蔡美丹
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Guangdong University of Petrochemical Technology
Original Assignee
Guangdong University of Petrochemical Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong University of Petrochemical Technology filed Critical Guangdong University of Petrochemical Technology
Priority to CN202111109030.2A priority Critical patent/CN113916452A/en
Publication of CN113916452A publication Critical patent/CN113916452A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18Status alarms
    • G08B21/24Reminder alarms, e.g. anti-loss alarms

Abstract

The invention discloses a valve inner leakage detection device for chemical machinery, which comprises a valve shell, wherein connecting pieces are arranged at the left end and the right end of the valve shell, and one end of each connecting piece, which is far away from the valve shell, is connected with a connecting pipeline; the fixed rod is arranged above the valve shell, the bottom of the fixed rod is connected with the valve plate, and the valve plate is arranged inside the valve shell; the microswitch is arranged on the inner wall of the connecting piece, one end of the second pull rope passes through the third fixed pulley and is connected with the second balancing weight, and the third fixed pulley is arranged on the outer wall of the sealing box. This leak detection device in valve for chemical machinery is provided with the supporting shoe of slope form between valve housing and the protection piece, and the supporting shoe is the fretwork form, and when the arbitrary direction of valve housing appeared leaking like this, all can make the liquid flow of leakage to in the sealing box, collect liquid to make the kickboard rebound, ensure whole detection achievement's normal clear.

Description

Valve inner leakage detection device for chemical machinery
Technical Field
The invention relates to the technical field of chemical machinery, in particular to a valve inner leakage detection device for chemical machinery.
Background
In the chemical machinery trade, the valve is more common utensil, mainly is used for controlling fluidic flow size, and the valve variety on the existing market is many, can carry out corresponding selection according to actual need's occasion, and the phenomenon that the valve leaked occasionally can appear in the use, can cause fluidic loss extravagant like this, so need detection device to leak the detection in to the valve.
For example, the publication number is CN213271306U, an internal leakage detection device for a valve for chemical machinery, wherein a leak port is formed on the bottom surface of the valve, so that the liquid flowing in the closed state of the valve can slide down, and the liquid after sliding down can be collected and watched through the collection frame arranged on the bottom surface of the valve and the observation window, so that the detection device can detect the internal leakage condition in the closed state of the valve, but the existing internal leakage detection device for a valve still has some defects in the using process, for example, the internal leakage detection by the watching mode is more troublesome, the workload of workers is increased, and the internal leakage detection device for a valve for chemical machinery is not convenient for automatically alarming and prompting the workers according to the liquid with internal leakage, the automation effect of the detection device is reduced, and the use efficiency of the detection device is further reduced, so that the internal leakage detection device for a valve for chemical machinery is provided, in order to solve the problems set forth above.
Disclosure of Invention
The invention aims to provide a valve inner leakage detection device for chemical machinery, which solves the problems that the detection device in the prior market is troublesome in inner leakage detection in a watching mode, increases the workload of workers, is inconvenient to automatically alarm and prompt the workers according to inner leakage liquid, reduces the automation effect of the detection device and further reduces the use efficiency of the detection device.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a leak detection device in valve for chemical machinery, includes:
the left end and the right end of the valve shell are both provided with connecting pieces, and one end of each connecting piece, which is far away from the valve shell, is connected with the connecting pipeline;
the fixed rod is arranged above the valve shell, the bottom of the fixed rod is connected with the valve plate, and the valve plate is arranged inside the valve shell;
the protection piece is arranged outside the valve shell, a sealing box is arranged at the bottom of the protection piece, a floating plate is arranged inside the sealing box, and an elastic spring is arranged between the floating plate and the bottom of the valve shell;
the first fixed pulley is arranged on the inner wall of the sealing box, the second fixed pulley is arranged on the outer wall of the sealing box, a first pull rope is arranged between the first fixed pulley and the second fixed pulley in a penetrating mode, one end of the first pull rope is connected with the floating plate, and the other end of the first pull rope is connected with the first balancing weight;
the microswitch is arranged on the inner wall of the connecting piece, and a warning lamp and a storage battery are arranged on the front side surface of the connecting piece;
one end of the second pull rope passes through a third fixed pulley and is connected with a second balancing weight, and the third fixed pulley is arranged on the outer wall of the sealing box;
the connecting plate, it is installed between left connecting piece and seal box, be provided with the installation piece on the connecting plate for strike sound and remind the staff when leaking in appearing, play the effect of warning.
Preferably, support blocks are arranged between the valve housing and the protection member, and the support blocks are distributed at equal angles between the valve housing and the protection member, so that the connection between the valve housing and the protection member can be firmer through the support blocks, and the stable use of the whole device is ensured.
Preferably, the connection mode of seal box and protection piece is the welding, and the connection mode of seal box and kickboard is sliding connection to the cross section of seal box is the rectangle form, can make the more firm of being connected between seal box and the protection piece, effectively prevents the phenomenon that drops from appearing in the use, can make more steady that the kickboard removed in addition, prevents the phenomenon that the appearance rocked.
Preferably, the floating plate is provided with fixing holes, the fixing holes are distributed on the floating plate at equal intervals, and the floating plate is in a telescopic structure through the elastic spring and the valve shell, so that leaked liquid can flow through the fixing holes when leakage occurs, the floating plate can normally rise, and the floating plate can be reset under the action of the elastic spring after the liquid is discharged.
Preferably, be welded connection between first balancing weight and the first stay cord, and the left side of first balancing weight is provided with the stopper to the stopper is connected through recess and seal box, and the recess is seted up on the outer wall of seal box simultaneously, has guaranteed the stability of being connected between first balancing weight and the first stay cord, moreover under the effect of stopper, can make more steady that first balancing weight removed.
Preferably, stopper and first balancing weight formula structure as an organic whole, and the stopper passes through recess and seal box and constitutes sliding construction to the gravity of first balancing weight is less than elastic spring's elasticity, and elastic spring's elasticity is less than the buoyancy of kickboard and the gravity sum of first balancing weight simultaneously, and when the liquid flow that leaks was to the bottom of kickboard, can make the kickboard rise, and then ensure the normal clear of detection achievement, through the slip between stopper and the recess, can make the kickboard stably rise.
Preferably, the second balancing weight and the connection mode of knocking the piece are bonded, and the knocking piece is of an arc-shaped structure, and the structure of the second balancing weight is the same as that of the first balancing weight, so that the firmness of connection between the second balancing weight and the knocking piece is ensured, and the phenomenon of falling off in the using process is effectively prevented.
Preferably, the connected mode of connecting plate and installation piece is the bonding, and the installation piece is the arc structure to the radian of installation piece is opposite with the radian of knocking the piece, and the installation piece is the metal material simultaneously, knocks the piece like this and descends to the certain distance after, can knock the sound to the installation piece, thereby plays the effect of warning, reminds the staff the phenomenon that the leakage appears, can in time overhaul the operation.
Preferably, the supporting shoe is slope structure, and the supporting shoe is the fretwork form to for welded connection between supporting shoe and the protection piece and the valve housing respectively, the axis of protection piece and valve housing is located same straight line simultaneously, and is more firm when can making between the protection piece and the valve housing use through the supporting shoe, when the leakage of arbitrary direction appears moreover, all can make the liquid stream of leakage concentrate to the seal box, normally provides the guarantee for detecting work.
Compared with the prior art, the invention has the beneficial effects that: the valve inner leakage detection device for the chemical machinery,
(1) the outer side of the valve shell is provided with a protection piece, the bottom of the protection piece is fixed with a sealing box, the sealing box is internally provided with a floating plate, the upper right side of the floating plate is connected with a first pull rope, the first pull rope penetrates through a first fixed pulley and a second fixed pulley to be connected with a first balancing weight, when internal leakage occurs, leaked liquid flows into the sealing box to enable the floating plate to ascend, so that the first balancing weight can descend, and along with descending of the first balancing weight, a microswitch is pushed to be closed, so that a closed circuit is formed between the warning lamp and the storage battery, the warning lamp emits light to warn and remind workers, and the valve is very convenient;
(2) a second pull rope is connected to the upper portion of the left side of the floating plate, the second pull rope penetrates through the third fixed pulley and is connected with a second balancing weight, a knocking block is arranged at the bottom of the second balancing weight, and when the knocking block is driven by the second balancing weight to descend together, the knocking block can knock an installation block made of a metal material on the connecting plate to make a sound, so that the phenomenon of internal leakage can be reminded to workers, and convenience is brought to the overhaul of the workers;
(3) be provided with the supporting shoe of slope form between valve housing and the protection piece, and the supporting shoe is the fretwork form, when the arbitrary direction of valve housing appeared leaking like this, all can make the liquid of leakage flow to in the sealing box, collect liquid to make the kickboard rebound, ensure whole detection achievement's normal clear.
Drawings
FIG. 1 is a schematic view of an overall main sectional structure of the present invention;
FIG. 2 is an enlarged view of a portion a of FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the structure at b in FIG. 1 according to the present invention;
FIG. 4 is a schematic side sectional view of the attachment of the shield and the seal box of the present invention;
FIG. 5 is a schematic top view of the floating plate according to the present invention;
FIG. 6 is a schematic top-down view of the first weight member of the present invention;
FIG. 7 is a schematic top view of the connection between the knocking block and the connecting plate according to the present invention.
In the figure: 1. a valve housing; 2. a connecting member; 3. connecting a pipeline; 4. fixing the rod; 5. a valve plate; 6. a guard; 7. a sealing box; 8. a floating plate; 9. an elastic spring; 10. a first fixed sheave; 11. a second fixed sheave; 12. a first pull cord; 13. a first weight block; 1301. a limiting block; 1302. a groove; 14. a microswitch; 15. a warning light; 16. a storage battery; 17. a second pull cord; 18. a third fixed sheave; 19. a second counterweight block; 20. knocking the block; 21. a connecting plate; 22. mounting blocks; 23. a fixing hole; 24. and (7) a supporting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a leak detection device in valve for chemical machinery, includes:
the left end and the right end of the valve shell 1 are both provided with connecting pieces 2, and one end of each connecting piece 2, which is far away from the valve shell 1, is connected with a connecting pipeline 3;
the fixing rod 4 is arranged above the valve shell 1, the bottom of the fixing rod 4 is connected with the valve plate 5, and the valve plate 5 is arranged inside the valve shell 1;
a protection member 6 disposed outside the valve housing 1, a sealing box 7 disposed at the bottom of the protection member 6, a floating plate 8 disposed inside the sealing box 7, and an elastic spring 9 mounted between the floating plate 8 and the bottom of the valve housing 1;
the first fixed pulley 10 is installed on the inner wall of the sealing box 7, the second fixed pulley 11 is installed on the outer wall of the sealing box 7, a first pull rope 12 penetrates between the first fixed pulley 10 and the second fixed pulley 11, one end of the first pull rope 12 is connected with the floating plate 8, and the other end of the first pull rope 12 is connected with a first balancing weight 13;
a micro switch 14 installed on the inner wall of the connector 2, a warning lamp 15 and a storage battery 16 being installed on the front side surface of the connector 2;
one end of the second pull rope 17 passes through a third fixed pulley 18 and is connected with a second balancing weight 19, and the third fixed pulley 18 is arranged on the outer wall of the sealing box 7;
connecting plate 21, it is installed between left connecting piece 2 and seal box 7, is provided with installation piece 22 on connecting plate 21 for strike when appearing interior hourglass and make sound and remind the staff, play the effect of warning.
Support blocks 24 are provided between the valve housing 1 and the shield 6, and the support blocks 24 are equiangularly distributed between the valve housing 1 and the shield 6. The supporting block 24 is of an inclined structure, the supporting block 24 is hollowed out, the supporting block 24 is connected with the protection member 6 and the valve housing 1 by welding, and the central axes of the protection member 6 and the valve housing 1 are located on the same straight line. The sealing case 7 and the protector 6 are connected by welding, the sealing case 7 and the floating plate 8 are connected by sliding, and the cross section of the sealing case 7 is rectangular. The floating plate 8 is provided with fixing holes 23, the fixing holes 23 are distributed on the floating plate 8 at equal intervals, and the floating plate 8 forms a telescopic structure through the elastic spring 9 and the valve shell 1.
In this way, in the using process, the leaked liquid can flow into the area between the valve housing 1 and the protection piece 6, the sealing box 7 is arranged at the bottom of the protection piece 6, and the hollow-out supporting block 24 is arranged between the protection piece 6 and the valve housing 1, so that the liquid can intensively flow into the sealing box 7 under the condition of ensuring stable use, and the floating plate 8 is arranged inside the sealing box 7, and the fixing hole 23 is formed in the floating plate 8, so that the floating plate 8 can gradually rise along with the increase of the collected liquid amount.
The first balancing weight 13 and the first pull rope 12 are connected in a welding mode, a limiting block 1301 is arranged on the left side of the first balancing weight 13, the limiting block 1301 is connected with the sealing box 7 through a groove 1302, and the groove 1302 is arranged on the outer wall of the sealing box 7. The limiting block 1301 and the first balancing weight 13 are of an integrated structure, the limiting block 1301 forms a sliding structure through the groove 1302 and the sealing box 7, the gravity of the first balancing weight 13 is smaller than the elastic force of the elastic spring 9, and meanwhile the elastic force of the elastic spring 9 is smaller than the sum of the buoyancy of the floating plate 8 and the gravity of the first balancing weight 13.
Like this under the buoyancy of kickboard 8 and the cooperation of first balancing weight 13, can extrude elasticity spring 9, along with rising gradually of kickboard 8, can make first balancing weight 13 descend gradually, make the left stopper 1301 of first balancing weight 13 descend along recess 1302 simultaneously, can make the more steady that first balancing weight 13 descends like this, when first balancing weight 13 descends to micro-gap switch 14 position, can promote micro-gap switch 14 closed, and then make and form closed circuit between battery 16 and the warning light 15, make warning light 15 send light warning, remind the staff.
The second balancing weight 19 and the knocking block 20 are connected in a bonding mode, the knocking block 20 is of an arc-shaped structure, and the structure of the second balancing weight 19 is the same as that of the first balancing weight 13. The connecting mode of connecting plate 21 and installation piece 22 is for bonding, and installation piece 22 is the arc structure to the radian of installation piece 22 is opposite with the radian of beating piece 20, and installation piece 22 is the metal material simultaneously.
The second stay cord 17 of 8 left sides connections of kickboard also can descend to drive second balancing weight 19 and strike the piece 20 and descend together, when strike the piece 20 and descend and the installation piece 22 contact on the connecting plate 21, because of installation piece 22 is curved metal material, so can strike the sound to installation piece 22, the staff is reminded in the warning that sends that can be further, consequently can make the staff in time discover the leakage condition, overhaul the operation according to the condition, it is very convenient.
The working principle of the embodiment is as follows: when using the valve internal leakage detection device for chemical machinery, as shown in fig. 1-7, firstly, a worker installs the valve and the connecting pipe 3, since the protection member 6 is arranged outside the valve housing 1, during the use process, the leaked liquid flows into the region between the valve housing 1 and the protection member 6, the sealing box 7 is arranged at the bottom of the protection member 6, and the hollow-out supporting block 24 is arranged between the protection member 6 and the valve housing 1, so that under the condition of ensuring stable use, the liquid can intensively flow into the sealing box 7, the floating plate 8 can gradually rise along with the increase of the collected liquid amount, so that under the coordination of the buoyancy of the floating plate 8 and the first balancing weight 13, the elastic spring 9 can be squeezed, along with the gradual rise of the floating plate 8, the first balancing weight 13 can gradually fall, when the first balancing weight 13 falls to the position of the micro switch 14, will promote micro-gap switch 14 closure, and then make and form closed circuit between battery 16 and the warning light 15, make warning light 15 send light warning, remind the staff, meanwhile, the second stay cord 17 that the kickboard 8 left side is connected also can descend, thereby drive second balancing weight 19 and strike piece 20 and descend together, can strike the sound to installation piece 22 through striking piece 20, can further send out warning and remind the staff, consequently, can make the staff in time discover the leakage condition, above that be the course of work of whole device, the content of not making detailed description in this description all belongs to the prior art that the professional technical personnel in this field know.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (9)

1. The utility model provides a leak detection device in valve for chemical machinery which characterized in that includes:
the left end and the right end of the valve shell are both provided with connecting pieces, and one end of each connecting piece, which is far away from the valve shell, is connected with the connecting pipeline;
the fixed rod is arranged above the valve shell, the bottom of the fixed rod is connected with the valve plate, and the valve plate is arranged inside the valve shell;
the protection piece is arranged outside the valve shell, a sealing box is arranged at the bottom of the protection piece, a floating plate is arranged inside the sealing box, and an elastic spring is arranged between the floating plate and the bottom of the valve shell;
the first fixed pulley is arranged on the inner wall of the sealing box, the second fixed pulley is arranged on the outer wall of the sealing box, a first pull rope is arranged between the first fixed pulley and the second fixed pulley in a penetrating mode, one end of the first pull rope is connected with the floating plate, and the other end of the first pull rope is connected with the first balancing weight;
the microswitch is arranged on the inner wall of the connecting piece, and a warning lamp and a storage battery are arranged on the front side surface of the connecting piece;
one end of the second pull rope passes through a third fixed pulley and is connected with a second balancing weight, and the third fixed pulley is arranged on the outer wall of the sealing box;
the connecting plate, it is installed between left connecting piece and seal box, be provided with the installation piece on the connecting plate for strike sound and remind the staff when leaking in appearing, play the effect of warning.
2. The valve internal leakage detection device for the chemical machinery as claimed in claim 1, wherein: support blocks are arranged between the valve housing and the protection piece, and the support blocks are distributed at equal angles between the valve housing and the protection piece.
3. The valve internal leakage detection device for the chemical machinery as claimed in claim 1, wherein: the sealing box and the protection piece are connected in a welding mode, the sealing box and the floating plate are connected in a sliding mode, and the cross section of the sealing box is rectangular.
4. The valve internal leakage detection device for the chemical machinery as claimed in claim 1, wherein: the floating plate is provided with fixing holes which are distributed at equal intervals on the floating plate, and the floating plate forms a telescopic structure through the elastic spring and the valve shell.
5. The valve internal leakage detection device for the chemical machinery as claimed in claim 1, wherein: be welded connection between first balancing weight and the first stay cord, and the left side of first balancing weight is provided with the stopper to the stopper is connected through recess and seal box, and the recess is seted up on the outer wall of seal box simultaneously.
6. The valve internal leakage detection device for the chemical machinery as claimed in claim 5, wherein: the limiting block and the first balancing weight are of an integrated structure, the limiting block forms a sliding structure through the groove and the sealing box, the gravity of the first balancing weight is smaller than the elastic force of the elastic spring, and meanwhile the elastic force of the elastic spring is smaller than the sum of the buoyancy of the floating plate and the gravity of the first balancing weight.
7. The valve internal leakage detection device for the chemical machinery as claimed in claim 1, wherein: the second balancing weight is connected with the knocking block in a bonding mode, the knocking block is of an arc-shaped structure, and the structure of the second balancing weight is the same as that of the first balancing weight.
8. The valve internal leakage detection device for the chemical machinery as claimed in claim 1, wherein: the connecting mode of connecting plate and installation piece is for bonding, and the installation piece is the arc structure to the radian of installation piece is opposite with the radian of beating the piece, and the installation piece is the metal material simultaneously.
9. The valve internal leakage detection device for the chemical machinery as claimed in claim 2, wherein: the supporting shoe is the slope structure, and the supporting shoe is the fretwork form to be welded connection between supporting shoe and the protection piece and the valve casing respectively, the axis of protection piece and valve casing is located same straight line simultaneously.
CN202111109030.2A 2021-09-22 2021-09-22 Valve inner leakage detection device for chemical machinery Pending CN113916452A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111109030.2A CN113916452A (en) 2021-09-22 2021-09-22 Valve inner leakage detection device for chemical machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111109030.2A CN113916452A (en) 2021-09-22 2021-09-22 Valve inner leakage detection device for chemical machinery

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Publication Number Publication Date
CN113916452A true CN113916452A (en) 2022-01-11

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Publication number Priority date Publication date Assignee Title
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CN111947744A (en) * 2020-08-19 2020-11-17 江苏瑞墨建筑科技有限公司 Fire-fighting water tank water level monitoring alarm device
CN212432267U (en) * 2020-07-30 2021-01-29 上海至诚锅炉设备有限公司 Water meter box with water leakage alarm function
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CN213748933U (en) * 2020-12-02 2021-07-20 邵红艳 Water leakage detection device for water supply pump station
CN112539808A (en) * 2021-01-01 2021-03-23 郭建刚 Intelligent diagnosis system and diagnosis method based on solution storage in industrial manufacturing

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