A kind of valve-type safe pressure relief device for aqueduct
Technical field
The present invention relates to safe pressure relief device technical field, specially a kind of valve-type safety relief for aqueduct is filled
It sets.
Background technique
Valve-type safe pressure relief device is one kind of common safety valve, it is to be held by the open discharge gas of valve with reducing
The characteristics of pressure in device, this safe pressure relief device, is that it is only higher than defined partial pressure in drainage pressure container, and
When the pressure in container is down to routine operating pressure, it is automatically closed, so it superpressure can once occur to avoid container
All gas must be discharged, thus caused by waste and production disruption consequence, therefore valve-type safe pressure relief device is extensive
For boiler, pressure vessels and pipes.
But existing valve-type safe pressure relief device is not installed on good preventing clogging up device, when some unclean
When gas or liquid containing some impurity pass through valve port, the impurity of accumulation is easily adhered or clip is at valve port, and then is easy
The consequence that valve port excessively lags is caused, and when valve plug is closed, the impurity in pipeline is easy to be connected at valve port, then makes
It is connected at valve plug and valve port at impurity, so that valve plug can not be connected to the inside of valve port completely, causes between valve plug and valve port
There are gaps, and sealing performance is poor, especially on aqueduct, then cause also usually to have under normal operating pressure light
Micro- leakage.
Summary of the invention
The present invention provides a kind of valve-type safe pressure relief devices for aqueduct, and having prevents from causing valve opened
In lag, effectively enhances the sensitivity of valve opening and effectively enhance the excellent of the sealing effect between annular valve block valve port and valve port
Point solves existing valve-type safe pressure relief device and is not installed on good preventing clogging up device, when some unclean gases
Or the liquid containing some impurity, when passing through valve port, the impurity of accumulation is easily adhered or clip is at valve port, and then is be easy to cause
The consequence that valve port excessively lags, and when valve plug is closed, the impurity in pipeline is easy to be connected at valve port, then causes miscellaneous
Matter is connected at valve plug and valve port, so that valve plug can not be connected to the inside of valve port completely, causes to exist between valve plug and valve port
Gap, sealing performance is poor, especially on aqueduct, then causes also usually to have under normal operating pressure slight
The problem of leakage.
It is achieved in order to achieve the above object, the present invention provides the following technical solutions: a kind of valve-type for aqueduct
Safe pressure relief device including valve body, is fixedly mounted on the vertical bar of valve inner and the pressure stabilizing mechanism above valve body, the valve
Annular valve block is fixedly installed in the middle part of body upper surface, the middle part on the inside of the valve body offers valve port, the pushing meanss
Bottom movable sleeve is connected to annular plate valve block, and the bottom of the annular valve block is socketed through valve body and with the internal activity of valve port, described
The bottom of pressure stabilizing mechanism is fixedly installed with surge suppressor, and the bottom of the surge suppressor and the top of pushing meanss pass through even pressure pipe
It is fixedly connected, is fixedly connected on the left of the left side of the valve body upper surface and pressure stabilizing mechanism, is fixedly connected on the right side of the valve body
There is connecting tube, the upper surface of the connecting tube is fixedly connected with the right side of surge suppressor by right connecting tube;
The middle part of the vertical bar is connected to filter device by fixed block fixing sleeve, and the filter device includes transverse bar, described
The left side fixing sleeve of lateral rod outer surface is connected to conical filter net, and the middle part movable sleeve of the transverse direction rod outer surface is connected to annular
It covers, is fixedly installed with support rod on the right side of the conical filter net, is fixed between the support rod and annular sleeve by interlocking lever
Connection, the flexible compression member of outer surface pivot bush unit of the transverse bar, the quantity of the support rod are four, described in four
It is fixedly connected between support rod is adjacent two-by-two by molding machine, the molding machine includes curved pipe, curved rod and clamping
Plate, the adjacent side of two support rods are fixedly connected to curved pipe, and the equal movable sleeve in the inside of two curved pipes is connected to clamping
Plate, the both ends of the curved rod extend through the inside of corresponding two curved pipes and are fixedly connected with corresponding card adapter plate.
Optionally, sealing ring is fixedly connected on the left of the valve interior wall, the sealing ring is located at the left side of vertical bar, institute
The inside for stating sealing ring and the outer surface of conical filter net are mutually clamped.
Optionally, the elastic compression part is between elastic compression part and annular sleeve, the elastic compression part
Left end and annular sleeve on the right side of be fixedly connected, be fixedly connected on the left of the right end and fixed block of the elastic compression part.
Optionally, pressure gauge is fixedly installed on the left of the valve body upper surface, the pressure gauge is located at left connecting tube
Left side.
Optionally, the arc length value of the curved rod is twice of arc inside pipe wall arc length value.
It optionally, is coniform under the conical filter net opening-wide state, and conical filter net is under opening-wide state
Right side cross sectional inner diameter is equal with valve body transverse direction bore.
The present invention provides a kind of valve-type safe pressure relief device for aqueduct, have it is following the utility model has the advantages that
1, the valve-type safe pressure relief device for being used for aqueduct passed through when the liquid inside pipeline contains impurity flowing
The cooperation between device, fixed block, pushing meanss, annular valve block, pressure stabilizing mechanism and surge suppressor is filtered, when valve-type safety relief fills
It sets left side pipeline internal liquid pressure to increase, annular valve block is separated with valve port, and left side pipeline liquid moves to the right, then right side
Impurity of the contaminant filter on the left of the left side of filter device, filter device in internal liquid is constantly accumulated, at this time filter device
When thrust to the right is greater than elastic compression part to filter device thrust to the left, filter device is shunk, and heap is then made
Long-pending impurity is punched into the right side of valve port with liquid, then can effectively avoid impurity be adhered to annular valve block and valve port it
Between, cause valve opening excessively to lag, so as to effectively enhance the sensitivity of valve opening.
2, the valve-type safe pressure relief device for being used for aqueduct leads to when the liquid inside pipeline contains impurity flowing
Cross the cooperation between filter device, fixed block, pushing meanss, annular valve block, pressure stabilizing mechanism and surge suppressor, valve-type safety relief
When the pressure of liquid tends to be equal at left and right sides of device, the thrust of pipeline internal liquid to the right is less than elasticity on the left of filter device
The component that compression member pushes filter device to the left, at this time the edge of the conical filter net outer circumference on filter device with it is close
The inner seal of seal ring connects, and is then filtered to the liquid of valve-type safe pressure relief device flowing, to prevent annular valve block
Impurity while closure with valve port in the pipeline of left side is located between the two, is then not easy to keep annular valve block and valve port complete
Closure, then leads to the problem of slight leakage is also usually had under normal operating pressure, therefore this is used for aqueduct
Valve-type safe pressure relief device can effectively enhance the sealing effect between annular valve block and valve port.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention;
Fig. 2 is the enlarged diagram of filter device in Fig. 1;
Fig. 3 is the side schematic view of molding machine in Fig. 1.
In figure: 1, valve body;2, connecting tube;3, vertical bar;4, sealing ring;5, filter device;51, transverse bar;52, conical filter
Net;53, annular sleeve;54, interlocking lever;55, support rod;6, fixed block;7, molding machine;71, curved pipe;72, curved rod;73,
Card adapter plate;8, elastic compression part;9, pressure gauge;10, pushing meanss;11, annular valve block;12, right connecting tube;13, left connection
Pipe;14, pressure stabilizing mechanism;15, surge suppressor;16, connect pressure pipe;17, valve port.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1-3, a kind of valve-type safe pressure relief device for aqueduct, including valve body 1, it is fixedly mounted on valve
Vertical bar 3 inside body 1 and the pressure stabilizing mechanism above valve body 1 14, valve body are fixedly installed with annular valve block in the middle part of 1 upper surface
11, sealing ring 4 is fixedly connected on the left of 1 inner wall of valve body, and sealing ring 4 is located at the left side of vertical bar 3, the inside of sealing ring 4 and cone
The outer surface of shape filter screen 52 is mutually clamped, and pressure gauge 9 is fixedly installed on the left of 1 upper surface of valve body, and pressure gauge 9 is located at left connection
The middle part in the left side of pipe 13,1 inside of valve body offers valve port 17, and the bottom movable sleeve of pushing meanss 10 is connected to annular plate valve block 11,
The bottom of annular valve block 11 is socketed through valve body 1 and with the internal activity of valve port 17, and the bottom of pressure stabilizing mechanism 14 is fixedly installed with
The bottom of surge suppressor 15, surge suppressor 15 is fixedly connected with the top of pushing meanss 10 by even pressure pipe 16,1 upper surface of valve body
Left side be fixedly connected with the left side of pressure stabilizing mechanism 14, baffle is installed at the top of the lateral tube cavity of valve body 1, and baffle is located at a left side
The left side of 13 bottom end of connecting tube then prevents the out-of-date inside for being adsorbed to left connecting tube 13 of trash flow, causes to left connecting tube
13 blocking, the right side of valve body 1 are fixedly connected with connecting tube 2, and the upper surface of connecting tube 2 and the right side of surge suppressor 15 pass through the right side
Connecting tube 12 is fixedly connected;
The middle part of vertical bar 3 is connected to filter device 5 by 6 fixing sleeve of fixed block, and 5 left side pipeline internal liquid of filter device is to the right
Thrust be less than the component that pushes to the left to filter device 5 of elastic compression part 8, the conical filter net on filter device 5 at this time
The edge of 52 outer circumferences is connect with the inner seal of sealing ring 4, is then carried out to the liquid of valve-type safe pressure relief device flowing
Filtering, thus impurity while preventing annular valve block 11 being closed with valve port 17 in the pipeline of left side be located between the two, after
And be not easy to be closed completely annular valve block 11 with valve port 17, then cause also usually to have under normal operating pressure slight
The problem of leakage, filter device 5 include transverse bar 51, and the left side fixing sleeve of 51 outer surface of transverse bar is connected to conical filter net
52, it is coniform under 52 opening-wide state of conical filter net, and conical filter net 52 is in the right side cross section under opening-wide state
The lateral bore of diameter and valve body 1 is equal, then ensures the interior of conical filter net 52 under the fully extended state and 1 transverse pipe of valve body
Diameter is tightly connected, and the impurity in the pipeline of left side is then prevented to be mixed in conical filter net 52 and valve under the fully extended state
Between the inner cavity of 1 transverse pipe of body, the middle part movable sleeve of 51 outer surface of transverse bar is connected to annular sleeve 53, the right side of conical filter net 52
It is fixedly installed with support rod 55, is fixedly connected between support rod 55 and annular sleeve 53 by interlocking lever 54, the appearance of transverse bar 51
The flexible compression member 8 of face pivot bush unit, it is maximum that elastic compression part 8 is greater than left side to the component that filter device 5 pushes to the left
Water flow is to the thrust of filter device 5, and elastic compression part 8 is between elastic compression part 8 and annular sleeve 53, elastic compression portion
The left end of part 8 is fixedly connected with the right side of annular sleeve 53, and the right end of elastic compression part 8 is fixedly connected with the left side of fixed block 6,
The quantity of support rod 55 is four, is fixedly connected between four support rods 55 are adjacent two-by-two by molding machine 7, works as filter device
5 left side impurity constantly accumulate, at this time the thrust of filter device 5 to the right be greater than elastic compression part 8 to filter device 5 to the left
Thrust when, filter device 5 is shunk, then make accumulation impurity as liquid is punched into the right side of valve port 17, then can
It is enough that impurity is effectively avoided to be adhered between annular valve block 11 and valve port 17, cause valve opening excessively to lag, so as to effective
Enhance the sensitivity that valve is opened, molding machine 7 includes curved pipe 71, curved rod 72 and card adapter plate 73, two support rods 55
Adjacent side is fixedly connected to curved pipe 71, and the equal movable sleeve in the inside of two curved pipes 71 is connected to card adapter plate 73, curved rod 72
Both ends extend through the inside of corresponding two curved pipes 71 and be fixedly connected with corresponding card adapter plate 73, the arc of curved rod 72
Long value is twice of 71 inner wall arc length value of curved pipe, then when filter device 5 is shunk, can make the both ends of curved rod 72
Uniform shrinkage then avoids 72 two sides curved pipe of curved rod, 71 length uneven in the curved pipe 71 of corresponding two sides respectively, inconvenient
It stretches in it, to prevent from influencing the fluency that filter device 5 carries out retracted position.
When work, pipeline internal liquid pressure increases on the left of valve-type safe pressure relief device, annular valve block 11 and valve port 17
Separation, left side pipeline liquid move to the right, drive horizontal plug in pressure stabilizing mechanism 14 to move up, at this time left side pipeline internal liquid
The component that pushes to the left to filter device 5 of elastic compression part 8 is less than to the thrust of filter device 5 to the right, and answer and steady
The downward elastic force of 14 inner elastomeric extensible member of press mechanism, filter device 5 is in the fully extended state at this time, inside the pipeline of right side
Contaminant filter in liquid is in the left side of filter device 5, so that the liquid inside left connecting tube 13 and pressure stabilizing mechanism 14 be made to pass through
Surge suppressor 15 is connected to, and then pressure stabilizing mechanism 14 is driven to separate from valve port 17, at this time pipeline on the left of valve-type safe pressure relief device
Internal liquid moves to the right, then right side, and the conical filter net 52 propped up is matched containing impurity and is filtered in the left side of transverse bar 51,
After without accumulating impurity or be adhered under closed state between annular valve block 11 and valve port 17.
After annular valve block 11 is separated with valve port 17, the liquid communication of two sides, when valve-type safe pressure relief device or so two
When the pressure of side liquid tends to be equal, the thrust of 5 left side pipeline internal liquid of filter device to the right is less than elastic compression part 8
To the component that filter device 5 pushes to the left, the edge and sealing ring of 52 outer circumference of conical filter net on filter device 5 at this time
4 inner seal connection, is then filtered the liquid of valve-type safe pressure relief device flowing, thus prevent annular valve block 11 with
Impurity while valve port 17 is being closed in the pipeline of left side is located between the two, is then not easy to make annular valve block 11 and valve port 17
It is closed completely.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.