CN116336214B - Self-control type temperature matching valve - Google Patents
Self-control type temperature matching valve Download PDFInfo
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- CN116336214B CN116336214B CN202310628672.6A CN202310628672A CN116336214B CN 116336214 B CN116336214 B CN 116336214B CN 202310628672 A CN202310628672 A CN 202310628672A CN 116336214 B CN116336214 B CN 116336214B
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Abstract
The invention provides a self-control temperature matching valve, which comprises a valve body and a controller, wherein the valve body comprises a valve rod and two groups of valve plates, the two groups of valve plates are respectively provided with a steam vent, the valve rod sequentially passes through the steam vents of the two groups of valve plates, the valve rod is provided with plugs for respectively blocking the two steam vents, the valve rod comprises an upper rod part and a lower rod part which are connected, jacking pieces for respectively jacking the two groups of valve plates are respectively sleeved between the upper rod part and the lower rod part, each jacking piece comprises a jacking plate and a supporting part, the supporting parts are connected with the plugs, and when the plugs move to open the steam vents, the supporting parts provide a supporting force for the jacking plates so as to enable the jacking plates to cling to the valve plates and the inner walls of the valve body; the controller comprises an acquisition module for acquiring an image to be analyzed, a judging module for judging the leakage point and a control module for controlling the jacking piece to jack the sealing leakage point; the invention has the advantages of automatically detecting the valve condition and adaptively adjusting the jacking piece to ensure the reliable sealing performance.
Description
Technical Field
The invention relates to the technical field of temperature control valves, in particular to an automatic control type temperature matching valve.
Background
The existing temperature matching valve is mainly to fully mix and output high-pressure driving steam with relatively low temperature and high-pressure pumping steam with relatively high temperature to mixed steam with neutralization temperature, and the two modes are as follows: firstly, driving two groups of valve plates to move up and down through a valve rod to open a ventilation gap so as to collect two corresponding steam flows into a mixing cavity for mixing, and secondly, fixedly welding the two groups of valve plates on the inner wall of a valve seat, and driving the valve rod to move up and down so as to generate a ventilation gap between a plug on the valve rod and the valve plate, so that the two corresponding steam flows are collected into the mixing cavity for mixing; the sealing performance and other problems exist in the two modes, because the two types of introduced steam are high-pressure steam, the ventilation gap is closed to be opened, and then is opened to be closed, after long reciprocation, the high-pressure steam can cause impact force to the valve plate, the valve plate welding point is easy to damage to cause leakage, the temperature matching valve is more strict in proportion control of the two types of steam, therefore, the sealing performance is critical, the matching valve needs to be directly replaced after the existing treatment mode is used for a certain time, real-time monitoring or adjustment cannot be performed, and certain waste and low stringency are caused.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide the self-control temperature matching valve which can automatically detect the valve plate condition and adaptively adjust the jacking piece to ensure the reliability of the sealing performance.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the automatic control type temperature matching valve comprises a valve body and a controller, wherein the valve body comprises a valve rod and two groups of valve plates, the two groups of valve plates are respectively provided with a steam vent, the valve rod sequentially passes through the steam vents of the two groups of valve plates, the valve rod is provided with plugs for respectively blocking the two steam vents, the valve rod comprises an upper rod part and a lower rod part which are connected, lifting pieces for respectively lifting the two groups of valve plates are respectively sleeved between the upper rod part and the lower rod part, each lifting piece comprises a lifting plate and a supporting part, the supporting parts are connected with the plugs, and when the plugs move to open the steam vents, the supporting parts provide a supporting force for the lifting plates so that the lifting plates cling to the inner walls of the valve plates and the valve body;
the controller comprises an acquisition module, a judgment module and a control module;
the acquisition module acquires thermal imaging of a mixing cavity between two groups of valve plates photographed from outside as an image to be analyzed;
the judging module acquires the image to be analyzed and analyzes the image to obtain leakage points at the welding position of the valve plate as designated positions;
and the control module controls the jacking piece to rotate according to the designated position so as to enable the jacking plate to jack the sealing leakage point.
Further, the supporting part comprises a supporting sleeve and a plurality of groups of buffer rods, a frame rotationally connected with the plug is further arranged on the supporting sleeve, the jacking plate comprises a plurality of fan-shaped sealing plates, one end of each group of buffer rods is rotationally connected to the supporting sleeve, the other end of each group of buffer rods is rotationally connected to the bottom surface of the fan-shaped sealing plate, one end, close to the fan-shaped sealing plate, of each group of buffer rods is inclined towards the sealing position of the valve plate, and the diameter of the inner ring of each group of fan-shaped sealing plates is smaller than that of the steam vent.
Further, the upper rod part and the lower rod part comprise an outer rod and an inner rod, the outer rod is sleeved outside the inner rod, at least one connecting hole is formed in the outer surface of the outer rod, a protruding block protruding outside the connecting hole and connected with the supporting sleeve is arranged at one end portion of the inner rod, a control piece for driving the protruding block to stretch out and draw back is arranged in the inner rod, the other end portion of the inner rod penetrates through the valve body and extends to the outside of the valve body to form a rotary switch piece, and the height of the connecting hole is larger than the thickness of the protruding block.
Further, the upper rod part and the lower rod part are in telescopic connection through a spline shaft, the steam inlets of the two groups of valve plates are respectively in horn shapes with opposite directions, the plugs of the upper rod part and the plugs of the lower rod part are in cone shapes with opposite directions, the outer rod of the upper rod part is connected with the valve body through threads, a thread seat is arranged in the inner bottom of the valve body, the thread at the end part of the outer rod of the lower rod part is connected in the thread seat, and the threads of the outer rod of the upper rod part are opposite to those of the outer rod of the lower rod part.
Further, the acquisition module acquires images to be analyzed of the mixing cavity shot at different angles and gathers the images to be analyzed into an integrated table, the integrated table comprises shooting angles and images to be analyzed, the shooting angles are in one-to-one correspondence with the images to be analyzed, the judgment module acquires the integrated table, the images to be analyzed in the integrated table are subjected to overlapping analysis to obtain heat source distribution, shooting angles corresponding to indexes in the integrated table are obtained according to overlapping conditions of the heat source distribution, and leakage points of the valve plate are determined according to the shooting angles.
Further, the acquisition module acquires the rotation position of the rotation switch piece, the judgment module judges the position of each fan-shaped sealing plate according to the rotation position to serve as initial position information, the controller further comprises a calculation module, the calculation module acquires the leakage point in the judgment module, the coverage area of each fan-shaped sealing plate is calculated through a coverage algorithm according to the initial position information, the rotation angle of the rotation switch piece is calculated according to the coverage area and the leakage point to serve as a rotation angle value, and the control module controls the rotation switch piece to rotate according to the rotation angle value.
Further, the calculation module comprises a calculation submodule, the calculation submodule acquires leakage points and initial position information, an angle between each leakage point and the edge of a coverage area of an adjacent fan-shaped sealing plate is calculated according to the initial position information of the leakage points through an angle calculation formula to serve as a theoretical angle value, the theoretical angle value is divided into a forward rotation theoretical value and a reverse rotation theoretical value, the judgment module analyzes the rotation direction of the rotary switch piece according to the angle value to be turned, if the rotation direction is forward, the calculation submodule compares the forward rotation theoretical value with the angle value to be turned, if the rotation direction is reverse, the calculation submodule compares the reverse rotation theoretical value with the angle value to be turned, and a continuous command or a continuous rotation command is output according to a comparison result.
Further, a pressure sensor is arranged on one side of the mixing cavity, the collecting module obtains the pressure value collected by the pressure sensor in the mixing cavity as actual pressure information, a feedback module is further arranged in the controller, a pressure threshold value is preset in the feedback module, the actual pressure information is compared with the pressure threshold value, if the actual pressure information is equal to or smaller than the pressure threshold value, a normal instruction is sent to the control center, and if the actual pressure information is larger than the pressure threshold value, an abnormal instruction is sent to the control center.
Further, two sets of all be equipped with the cover that mixes on the opposite face of support cover, two the junction between the cover that mixes cup joints, the lateral surface that mixes the cover is equipped with a plurality of steam outlet, be equipped with the impeller on the support cover, works as when the steam inlet is opened, the air current drive impeller rotates so that partial air current gets into the cover that mixes in.
Further, the mixing cover is in a multi-ridge shape, and a mounting seat for mounting the auxiliary temperature control mechanism is further arranged on the outer side wall of the mixing cavity.
The invention has the beneficial effects that: 1. the lifting piece is arranged to lift and seal the valve plate, and particularly, compared with the traditional valve plate which is subjected to instantaneous stamping in the use process, the welding seam of the valve plate is easy to damage and leak and deviate; the valve rod is arranged to be an inner rod and an outer rod, and the inner rod can be independently rotated for a certain angle, so that the support sleeve can be rotated, namely, the fan-shaped sealing plate can be rotated to correspondingly seal the leakage point.
2. Can cooperate the jacking piece through setting up the cover that mixes, because the flow direction of steam makes the steam of part can get into smoothly and mix in the cover that mixes, can accelerate mixing efficiency for the pipeline that mixes the steam import can shorten as far as possible, and in order to improve mixing efficiency, the temperature control mechanism that corresponds can be set up in the valve body outside, can reduce the drive steam as far as possible and take out the temperature difference between the pressure steam, improves the mixing efficiency of steam.
3. By arranging the controller, the judging module can obtain accurate leakage points according to multi-angle thermal imaging analysis, the calculating module can accurately calculate the angle to be turned of the rotary switch according to the initial position points of the leakage points and the fan-shaped sealing plate, and compared with the direct replacement of the valve element, the automatic control system provided by the invention can realize adjustment by matching with the structural part, the cost for replacing the valve element is saved to a greater extent, and the service life is relatively longer.
Drawings
FIG. 1 is a cross-sectional view of the overall structure of the present invention;
FIG. 2 is a block diagram of a jack in accordance with the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1;
FIG. 4 is a control relationship diagram of a controller according to the present invention;
FIG. 5 is an analysis of a leak in the present invention;
FIG. 6 is an analysis of a single leak point of a jacking plate in accordance with the present invention;
FIG. 7 is an analysis of a plurality of leakage points of a jacking plate according to the present invention.
Reference numerals: 1. a valve body; 2. a valve stem; 21. an upper pole section; 22. a lower stem portion; 201. an outer rod; 202. an inner rod; 3. a valve plate; 4. a plug; 5. a jacking member; 51. a jacking plate; 511. a fan-shaped sealing plate; 52. a support part; 521. a support sleeve; 522. a buffer rod; 6. a frame; 7. a connection hole; 8. a bump; 9. rotating the switch member; 10. a spline shaft; 11. a mixing cover; 12. a steam outlet hole; 13. an impeller; 14. a mounting base; 101. an acquisition module; 102. a judging module; 103. a control module; 104. a computing module; 105. a calculation sub-module; 106. and a feedback module.
Detailed Description
The invention will now be described in further detail with reference to the drawings and examples. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
Example 1:
because the temperature matching valve has more application scenes, equipment or industrial steam and the like with requirements for steam are used, the two types of steam which are introduced by the existing matching valve are high-pressure steam, the ventilation gap is from closed to open, and then from open to closed, after long reciprocation, the high-pressure steam can cause impact force to the valve plate 3, the welding point of the valve plate 3 is easy to damage to cause leakage, and the temperature matching valve is more strict in proportion control of the two types of steam, so that the tightness is critical, the existing processing mode is that the matching valve needs to be directly replaced after a certain time of use, and cannot be monitored or adjusted in real time, so that certain waste and low strictness are caused; the invention designs the self-control temperature matching valve, the specific structure is shown in figure 1, the self-control temperature matching valve comprises a valve body 1 and a controller, the valve body 1 comprises a valve rod 2 and two groups of valve plates 3, the two groups of valve plates 3 are horizontally welded in the valve body 1, the two groups of valve plates 3 block two steam inlets, the self-control temperature matching valve comprises driving steam (high temperature and high pressure) and pumping steam (high temperature and high pressure), a mixing cavity for steam between the two groups of valve plates 3 is arranged on the two groups of valve plates 3, the valve rod 2 sequentially passes through the steam inlets of the two groups of valve plates 3, the valve rod 2 is provided with a plug 4 for respectively blocking the two steam inlets, the top of the valve rod 2 is provided with a coupler and a hand wheel for driving the valve rod 2 to rotate, the valve rod 2 comprises an upper rod part 21 and a lower rod part 22 which are connected, a jacking piece 5 for respectively jacking the two groups of valve plates 3 is respectively sleeved between the upper rod part 21 and the lower rod part 22, the jacking piece 5 comprises a jacking plate 51 and a supporting part 52, the supporting part 52 is connected with the plug 4, when the plug 4 moves to open the steam port, the supporting part 52 provides a supporting force for the jacking plate 51 so that the jacking plate 51 is closely attached to the valve plate 3 and the inner wall of the valve body 1, wherein when the valve rod 2 moves to drive the plug 4 to move upwards to open the steam port, steam can instantaneously enter the mixing cavity from the steam port, at the moment, the steam port of the valve rod 2 is pressurized excessively, the valve rod 2 has a downward steam pressure, pressure exists on a welding point of the valve rod 2, the plug 4 moves upwards to drive the jacking plate 51 to have an upward inclined movement track, the jacking plate 51 can synchronously jack up the valve plate 3 to give an upward jacking force to the valve plate 3, the unilateral pressure on the valve plate 3 can be reduced, when the upward movement distance of the plug 4 is increased, the jacking force given to the valve plate 3 by the jacking plate 51 is increased, the pressure born by the valve plate 3 can be balanced, the sealing ring sleeved on the outer ring of the jacking plate 51 is more deformed under pressure, the sealing ring is more tightly attached to the welding point of the valve plate 3, and the sealing effect is better;
the control part is shown in fig. 4, and the controller comprises an acquisition module 101, a judgment module 102 and a control module 103;
a matched thermal imaging camera can be arranged on the outer side of the mixing cavity, and the flow condition of the hot fluid of the pipeline is detected through thermal imaging at present, so that a collection module 101 in the controller obtains thermal imaging of the mixing cavity between two groups of valve plates 3 which are shot from the outside as an image to be analyzed (the image to be analyzed is a plane image, the image contains color distribution, the redder the color is, the larger the representative heat is, when the thermal imaging is carried out, a part of steam exists in a driving steam inlet and a pumping steam inlet, and no steam exists in the mixing cavity and an inlet pipe of the mixed steam); the judging module 102 is used for acquiring an image to be analyzed and analyzing to obtain a leakage point at the welding position of the valve plate 3 as a designated position (when the color of the image to be analyzed gradually changes from red to yellow downwards from the valve plate 3, the leakage point at the welding position of the valve plate 3 is indicated); the control module 103 controls the jacking piece 5 to rotate according to the designated position so that the jacking plate 51 jacks the sealing leakage point.
As shown in fig. 2 and 3, the supporting part 52 comprises a supporting sleeve 521 and a plurality of groups of buffer rods 522 (shock absorbers), the supporting sleeve 521 is also provided with a frame 6 rotationally connected with the plug 4 (the frame 6 comprises a connecting bar and a bearing, the bearing is sleeved on the outer side surface of the bottom of the plug 4, the connecting bar is connected between the bearing and the supporting sleeve 521), the jacking plate 51 comprises a plurality of groups of fan-shaped sealing plates 511, the four groups of fan-shaped sealing plates 511 are respectively connected with the outer ring radian of the fan-shaped sealing plates 511 in a rotating way, the four groups of fan-shaped sealing plates 511 are not spliced with each other in an initial state, when the four groups of fan-shaped sealing plates 511 are spread, the outer ring radian of the fan-shaped sealing plates 511 is spliced into a circle with each other, when the four groups of fan-shaped sealing plates 511 are spread, only part of the outer ring is tightly attached with a welding joint point, the sealing range is smaller, the shape of the first group of fan-shaped sealing plates 511 is preferable, one end of each group of buffer rods 522 is rotationally connected with the supporting sleeve 521, the other end of each group of fan-shaped sealing plates is rotationally connected with the bottom surface of the fan-shaped sealing plates 511, and the fan-shaped sealing plates 522 are respectively close to the two ends of the fan-shaped sealing plates 511, and the fan-shaped sealing plates 522 are respectively spread towards the inner ring opening of the sealing plates 511, and the two ends of the buffer rods are not in a slope state, and can reach the diameter of the buffer rods 511, and reach the initial state when the fan-shaped sealing plates are set up and reach the diameter, and can reach the buffer rod, and reach the sealing plate state, and the sealing plate state is a large state is set.
Because a neutral space is formed between two adjacent fan-shaped sealing plates 511 after the four fan-shaped sealing plates 511 are spread, namely, a part of welding seams are not sealed, leakage points are easy to occur and are not blocked, as shown in fig. 2 and 3, the upper rod part 21 and the lower rod part 22 both comprise an outer rod 201 and an inner rod 202, the outer rod 201 is sleeved outside the inner rod 202, at least one connecting hole 7 is formed in the outer surface of the outer rod 201, each connecting hole 7 is positioned at the same height of the side wall of the outer rod 201, a lug 8 protruding outside the connecting hole 7 and connected with a supporting sleeve 521 is formed at one end of the inner rod 202, a horizontal sliding channel is formed at one side of the connecting hole 7, the lug 8 of the inner rod 202 can slide in the sliding channel, a control piece for driving the lug 8 to stretch is arranged in the inner rod 202, the other end of the inner rod 202 penetrates through the valve body 1 and extends to the outside the valve body 1 to be provided with a rotary switch piece 9, the inner rod 202 rotates by a certain angle through rotating the switch piece 9 (a handle), namely, the lug 8 drives the supporting sleeve 521 to rotate a certain angle, the connecting hole 7 is also capable of moving upwards through the lug 8 to be connected with the lug 8, and the lug 8 can also pass through the lug 8 and the supporting sleeve 521 after the lug 8 moves upwards; the upper rod part 21 and the lower rod part 22 are connected in a telescopic way through the spline shaft 10, the outer rod 201 of the upper rod part 21 and the outer rod 201 of the lower rod part 22 are sleeved, the spline shaft 10 is arranged on the outer rod 201 of the lower rod part 22, the shaft groove is arranged on the outer rod 201 of the upper rod part 21, the spline shaft 10 is connected in the shaft groove, the steam inlets of the two groups of valve plates 3 are respectively in a horn shape with opposite directions, the choke plug 4 of the upper rod part 21 and the choke plug 4 of the lower rod part 22 are in a cone shape with opposite directions, when the choke plug 4 is opened, steam can impact the inner wall of the horn-shaped steam inlet, the outer rod 201 of the upper rod part 21 is connected with the valve body 1 through threads, a thread seat is arranged at the bottom in the valve body 1, the end part of the outer rod 201 of the lower rod part 22 is connected in the thread seat through threads, when the coupling drives, the upper rod part 21 is in threaded connection with the valve body 1, so that the upper rod part 21 drives the plug 4 of the upper rod part 21 to move up and down to open the steam port so as to drive steam into the mixing cavity, the upper rod part 21 and the lower rod part 22 are sleeved by the spline shaft 10, the outer rod 201 of the lower rod part 22 is connected in the threaded seat, the outer rod 201 of the upper rod part 21 and the outer rod 201 of the lower rod part 22 are in opposite threads, the outer rod 201 of the lower rod part 22 is in opposite threads, at the moment, the plug 4 of the upper rod part 21 and the plug 4 of the lower rod part 22 are in opposite movement, and the inner rod 202 is retracted into the inner rod 202 under the action of the control member, so that the normal rotation of the outer rod 201 is not affected.
The beneficial effects of the invention are as follows: compared with the prior valve plate 3 which is subjected to instantaneous stamping in the use process, the welding seam of the valve plate 3 is easy to damage and leak and deviate, the fan-shaped sealing plate 511 is obliquely jacked up through the buffer rod 522, and the fan-shaped sealing plate 511 is driven to move upwards and horizontally by the movement of the plug 4 through the connection of the support sleeve 521 and the plug 4, so that the valve plate 3 is jacked up and the welding seam point is sealed; the valve rod 2 is provided with the inner rod 202 and the outer rod 201, and the inner rod 202 can be independently rotated by a certain angle to realize the rotation of the supporting sleeve 521, namely, the rotation of the fan-shaped sealing plate 511 can correspondingly seal the leakage point.
The control part is shown in fig. 4, the acquisition module 101 acquires images to be analyzed of the mixing cavity shot at different angles, the images to be analyzed are collected into an integrated table, the integrated table comprises shooting angles and images to be analyzed, the shooting angles are in one-to-one correspondence with the images to be analyzed, the judgment module 102 acquires the integrated table, as shown in fig. 5, the images to be analyzed in the integrated table are subjected to overlapping analysis to obtain heat source distribution, the shooting angles corresponding to indexes in the integrated table are obtained according to overlapping conditions of the heat source distribution, the leakage point of the valve plate 3 is determined according to the shooting angles, and because the mixing cavity is tubular, the images to be analyzed obtained by shooting at one surface are analyzed only in a region capable of confirming leakage, therefore, at least two images to be analyzed are required to be obtained by shooting at least two angles for overlapping analysis, as shown in fig. 4, the first corresponds to be a front view, when the thermal imaging shot at the first view is a plane, the direction of the point can be determined to be the leakage point in the thermal imaging photograph, therefore, the corresponding point B can be determined to be the suspicious point, the corresponding point B can be also be determined, the corresponding point B can be the suspicious point can be obtained by shooting the corresponding to be the second thermal imaging photograph, the C point can be determined to be the leakage point, and the point can be the point coincident with the point C can be determined to be the point, if the point C can be the point is the point coincident with the point; if a plurality of points and a plurality of corresponding suspicious points exist in the thermal imaging image shot by the first visual angle, the thermal imaging images of other different angles need to be shot, and overlapping analysis is carried out on the shot thermal imaging images, so that a plurality of leakage points can be basically judged.
When the judging module 102 accurately judges the leakage point, the collecting module 101 obtains the rotation position of the rotary switch member 9, the judging module 102 judges the position of each fan-shaped sealing plate 511 according to the rotation position as initial position information, a drawing module is further arranged in the controller, the drawing module establishes a three-dimensional coordinate system by taking the center of the valve rod 2 as an origin coordinate, the judging module 102 can analyze coordinate points of edge profiles of four fan-shaped sealing plates 511 in the three-dimensional coordinate system, the initial position information comprises all the coordinate points, the controller also comprises a calculating module 104, the calculating module 104 obtains the leakage point in the judging module 102, the coverage area of each fan-shaped sealing plate 511 is calculated through a covering algorithm according to the initial position information, the rotation angle of each fan-shaped sealing plate 511 is calculated according to the coverage area and the leakage point as a value to be turned, the control module 103 controls the rotary switch member 9 to rotate according to the value to be turned angle to be turned, as shown in fig. 6, the point A is the leakage point, the coverage area between two adjacent fan-shaped sealing plates 511 has a leakage point, and the point A is located in the three-dimensional coordinate system, and the rotation point 202 needs to be controlled to be turned into a certain angle between the coverage area A and the adjacent coverage area (namely the angle alpha) to be turned angle alpha between the adjacent point A and the point to be turned angle alpha.
The calculation module 104 includes a calculation sub-module 105, the calculation sub-module 105 obtains the leakage points and the initial position information, calculates the angle between each leakage point and the edge of the coverage area of the adjacent fan-shaped sealing plate 511 according to the initial position information of the leakage points by an angle calculation formula as a theoretical angle value, divides the theoretical angle value into a forward rotation theoretical value and a reverse rotation theoretical value, the judgment module 102 analyzes the rotation direction of the rotary switch member 9 according to the value of the rotation angle to be detected, if the rotation direction is the forward direction, the calculation sub-module 105 compares the forward rotation theoretical value with the value of the rotation angle to be detected, if the rotation direction is the reverse direction, the calculation sub-module 105 compares the reverse rotation theoretical value with the value of the rotation angle to be detected, as the valve plate 3 outputs a continuous command or a continuous rotation command according to the comparison result, if a plurality of leakage points occur, after the rotary switch member 9 rotates according to the rotation angle value, the coverage areas of the four sector sealing blocks are likely to be covered by part of the leakage points, and the individual leakage points are not covered, so that detection is required, as shown in fig. 7, when the rotary switch member 9 rotates clockwise with the rotation angle value (α), the coverage area of the sector sealing plate 511 can just cover the point a, but the points B, C and D are not covered, so that the rotation angle value (α) needs to be recalculated, wherein the manner is that: the space between every two adjacent fan-shaped sealing plates 511 is divided into two equal areas (E and F), each leakage point is counted, it is judged whether or not there is a leakage point located in the F area when the rotary switch member 9 rotates clockwise, if there is, the maximum value of the angle (β) between the leakage point and the coverage area is taken, if the rotary switch member 9 rotates counterclockwise, whether or not there is a leakage point located in the E area, and if there is, the maximum value of the angle (γ) between the leakage point and the coverage area is taken.
The pressure sensor is arranged on one side of the mixing cavity, the acquisition module 101 acquires the pressure value in the mixing cavity acquired by the pressure sensor as actual pressure information, the controller also comprises a feedback module 106, a pressure threshold value is preset in the feedback module 106, the actual pressure information is compared with the pressure threshold value, if the actual pressure information is equal to or smaller than the pressure threshold value, a normal instruction is sent to the control center, and if the actual pressure information is larger than the pressure threshold value, an abnormal instruction is sent to the control center.
In order to improve the mixing efficiency of steam, the existing mixing cavity is low in mixing efficiency, and the length of a mixed steam outlet pipe is required to be delayed, so that the invention aims at the problem that as shown in fig. 2, the mixing covers 11 are arranged on opposite surfaces of two groups of supporting sleeves 521, the two supporting sleeves 521 deviate from each other and are close to each other, a plurality of steam outlet holes 12 are formed in the outer side surface of the mixing cover 11 due to the fact that the two supporting sleeves 521 are sleeved at the joint between the two mixing covers 11, impellers 13 are arranged on the supporting sleeves 521, the impellers 13 are driven by the impellers 13, when the steam inlet is opened, the impellers 13 are driven by air flow to rotate so that part of air flow enters the mixing covers 11 for mixing, the mixing covers 11 are in a multi-edge shape, when the two mixing covers 11 are spliced, the driving steam and the pumped steam in the mixing covers 11 can be in a longer contact time, and the mixing efficiency is higher.
Example 2:
in order to further improve the mixing efficiency, on the basis of embodiment 1, the outer side wall of the mixing chamber is further provided with a mounting seat 14 for mounting an auxiliary temperature control mechanism, and because the driving steam and the pumping steam have a temperature difference of approximately 100 degrees, the mixing of the driving steam and the pumping steam is affected by the temperature difference, so that the mixing chamber is divided into an upper chamber and a lower chamber, the steam entering the lower chamber is high-temperature pumping steam, the steam entering the upper chamber is driving steam, the mounting seat 14 is internally provided with a heat insulation sheet attached to the outer wall of the lower chamber, the temperature control mechanism is a refrigerator, and a refrigerating sheet of the refrigerator is attached to the heat insulation sheet, mainly for reducing the temperature of the pumping steam as much as possible, so that the temperature difference between the pumping steam and the driving steam is reduced, and the mixing efficiency of the clamping blocks is improved.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (10)
1. The utility model provides a self-control temperature matching valve, includes valve body (1) and controller, including valve rod (2) and two sets of valve plates (3) in valve body (1), two sets of all be equipped with the logical steam vent on valve plate (3), valve rod (2) pass the logical steam vent of two sets of valve plates (3) in proper order, just be equipped with on valve rod (2) and be used for blocking up plug (4) of two logical steam vents respectively, its characterized in that: the valve rod (2) comprises an upper rod part (21) and a lower rod part (22) which are connected, lifting pieces (5) for respectively lifting two groups of valve plates (3) are respectively sleeved between the upper rod part (21) and the lower rod part (22), the lifting pieces (5) comprise lifting plates (51) and supporting parts (52), the supporting parts (52) are connected with plugs (4), and when the plugs (4) move to open a steam port, the supporting parts (52) provide supporting force for the lifting plates (51) so that the lifting plates (51) are clung to the inner walls of the valve plates (3) and the valve body (1);
the controller comprises an acquisition module (101), a judging module (102) and a control module (103);
the acquisition module (101) acquires thermal imaging of a mixing cavity between two groups of valve plates (3) photographed from the outside as an image to be analyzed;
the judging module (102) acquires the image to be analyzed and analyzes the image to obtain a leakage point at the welding position of the valve plate (3) as a designated position;
the control module (103) controls the jacking piece (5) to rotate according to the designated position so as to enable the jacking plate (51) to jack the sealing leakage point.
2. A self-regulating temperature-matched valve as in claim 1, wherein: the supporting part (52) comprises a supporting sleeve (521) and a plurality of groups of buffer rods (522), a frame (6) rotationally connected with the plug (4) is further arranged on the supporting sleeve (521), the jacking plate (51) comprises a plurality of fan-shaped sealing plates (511), one end of each group of buffer rods (522) is rotationally connected to the supporting sleeve (521), the other end of each group of buffer rods is rotationally connected to the bottom surface of the fan-shaped sealing plate (511), one end, close to the fan-shaped sealing plate (511), of each group of buffer rods (522) is inclined towards the sealing position of the valve plate (3), and the diameter of the inner ring of each group of fan-shaped sealing plates (511) is smaller than that of the steam inlet.
3. A self-regulating temperature-matched valve as in claim 2, wherein: the upper rod part (21) and the lower rod part (22) comprise an outer rod (201) and an inner rod (202), the outer rod (201) is sleeved outside the inner rod (202), at least one connecting hole (7) is formed in the outer surface of the outer rod (201), a lug (8) protruding outside the connecting hole (7) and connected with a supporting sleeve (521) is arranged at one end of the inner rod (202), a control piece for driving the lug (8) to stretch out and draw back is arranged in the inner rod (202), the other end of the inner rod (202) penetrates through the valve body (1) and extends to the outside of the valve body (1) to form a rotary switch piece (9), and the height of the connecting hole (7) is larger than the thickness of the lug (8).
4. A self-regulating temperature-matched valve as in claim 3, wherein: the valve plate is characterized in that the upper rod part (21) and the lower rod part (22) are connected in a telescopic way through a spline shaft (10), the steam inlets of the two groups of valve plates (3) are respectively in a horn shape with opposite directions, the plugs (4) of the upper rod part (21) and the plugs (4) of the lower rod part (22) are in a cone shape with opposite directions, the outer rod (201) of the upper rod part (21) is connected with the valve body (1) through threads, a thread seat is arranged at the inner bottom of the valve body (1), the end part of the outer rod (201) of the lower rod part (22) is connected in the thread seat through threads, and the threads of the outer rod (201) of the upper rod part (21) are opposite to the threads of the outer rod (201) of the lower rod part (22).
5. A self-regulating temperature-matched valve as in claim 3, wherein: the collecting module (101) obtains images to be analyzed of the mixing cavity shot at different angles and collects the images to be analyzed into an integrated table, the integrated table comprises shooting angles and images to be analyzed, the shooting angles are in one-to-one correspondence with the images to be analyzed, the judging module (102) obtains the integrated table, the images to be analyzed in the integrated table are subjected to overlapping analysis to obtain heat source distribution, the shooting angles corresponding to indexes in the integrated table are obtained according to overlapping conditions of the heat source distribution, and leakage points of the valve plate (3) are determined according to the shooting angles.
6. A self-regulating temperature-matched valve as in claim 5, wherein: the collecting module (101) obtains the rotation position of the rotary switch piece (9), the judging module (102) judges the position of each fan-shaped sealing plate (511) according to the rotation position to serve as initial position information, the controller is internally provided with the calculating module (104), the calculating module (104) obtains leakage points in the judging module (102), the covering area of each fan-shaped sealing plate (511) is obtained through the covering algorithm according to the initial position information, the rotation angle of the rotary switch piece (9) is calculated according to the covering area and the leakage points to serve as a rotation angle value, and the control module (103) controls the rotary switch piece (9) to rotate according to the rotation angle value.
7. The self-regulating temperature-matched valve of claim 6, wherein: the calculation module (104) comprises a calculation submodule (105), the calculation submodule (105) acquires leakage points and initial position information, an angle between each leakage point and the edge of a coverage area of an adjacent fan-shaped sealing plate (511) is calculated according to the initial position information of the leakage points through an angle calculation formula to serve as a theoretical angle value, the theoretical angle value is divided into a forward rotation theoretical value and a reverse rotation theoretical value, the judgment module (102) analyzes the rotation direction of the rotary switch piece (9) according to the angle value to be turned, if the rotation direction is the forward direction, the calculation submodule (105) compares the forward rotation theoretical value with the angle value to be turned, if the rotation direction is the reverse direction, the calculation submodule (105) compares the reverse rotation theoretical value with the angle value to be turned, and a continuous command or a continuous rotation command is output according to a comparison result.
8. A self-regulating temperature-matched valve as in claim 7, wherein: the pressure sensor is arranged on one side of the mixing cavity, the acquisition module (101) acquires a pressure value acquired by the pressure sensor in the mixing cavity as actual pressure information, the controller is internally provided with a feedback module (106), a pressure threshold value is preset in the feedback module (106), the actual pressure information is compared with the pressure threshold value, if the actual pressure information is equal to or smaller than the pressure threshold value, a normal instruction is sent to the control center, and if the actual pressure information is greater than the pressure threshold value, an abnormal instruction is sent to the control center.
9. A self-regulating temperature-matched valve as in claim 2, wherein: the two sets of opposite faces of the supporting sleeve (521) are respectively provided with a mixing cover (11), the joint between the two mixing covers (11) is sleeved, the outer side face of the mixing cover (11) is provided with a plurality of steam outlet holes (12), the supporting sleeve (521) is provided with an impeller (13), and when the steam inlet is opened, the impeller (13) is driven to rotate by air flow so that partial air flow enters the mixing cover (11) for mixing.
10. A self-regulating temperature-matched valve as in claim 9, wherein: the mixing cover (11) is in a multi-ridge shape, and the outer side wall of the mixing cavity is also provided with a mounting seat (14) for mounting the auxiliary temperature control mechanism.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310628672.6A CN116336214B (en) | 2023-05-31 | 2023-05-31 | Self-control type temperature matching valve |
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| CN202310628672.6A CN116336214B (en) | 2023-05-31 | 2023-05-31 | Self-control type temperature matching valve |
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| CN116336214B true CN116336214B (en) | 2023-07-21 |
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| Publication number | Publication date |
|---|---|
| CN116336214A (en) | 2023-06-27 |
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