CN118110805B - Environment-friendly valve convenient for descaling for monitoring - Google Patents

Abstract

The invention relates to the field of valve starting, in particular to a valve convenient for descaling for environment-friendly monitoring, which comprises a valve body and a channel arranged on the valve body, wherein a cylindrical plug is rotationally connected to the valve body, the cylindrical plug is arranged perpendicular to the central axis of the channel, and a flow channel matched with the channel is arranged on the cylindrical plug; an annular groove is formed in the side wall of the flow channel, an elastic membrane is fixedly connected to the inner wall of the annular groove, and an oil storage groove is formed in the cylindrical plug. The invention utilizes the structural arrangement of the channel and the runner, dirt accumulation is not easy to generate in the channel, and the device seals the channel through the cylindrical plug, compared with the traditional pipe plug sealing channel, the device can not cause the phenomenon that the channel cannot be completely closed due to the influence of the dirt; and when the device needs to remove the scale, the channel and the runner can be positioned in a unified straight line, so that staff can quickly remove the scale in the channel and at the water outlet of the reaction vessel, and the reduction of drainage efficiency caused by excessive scale accumulation is avoided.

Description

Environment-friendly valve convenient for descaling for monitoring

Technical Field

The invention relates to the technical field of valves, in particular to a valve convenient for descaling for environment-friendly monitoring.

Background

The on-line monitoring equipment for COD, total phosphorus, total nitrogen and the like adopts a reaction method of high-temperature digestion, and a conventional reaction container adopts a high-pressure valve to control the switch at two ends of the reaction container so as to control the inlet and outlet of reagents and ensure the air tightness of the container during high-temperature high-pressure reaction.

Chinese patent No. CN202746749 discloses a high-pressure valve with a pressure reducing structure, which includes a high-pressure valve body, at least one orifice plate with a pressure reducing function is installed at a medium inlet of the high-pressure valve. The high-pressure valve with the depressurization structure has the following advantages: before the medium enters the flow channel, the pressure of the medium is reduced and the energy is lost due to the local resistance of the orifice plate, so that the pressure and the speed of the medium are reduced.

When the high-pressure valve in the prior art is used, the structure of the high-pressure valve causes reaction to generate sediment or insoluble substances exist in a water sample, the dirt can cause the high-pressure valve to be unable to be completely closed, and the formation and the maintenance of high-temperature and high-pressure conditions during the reaction are influenced, so that the accuracy of monitoring data is influenced, the use effect is not ideal, the dirt is difficult to clean due to the structure of the high-pressure valve, and the drainage efficiency is reduced due to dirt accumulation.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is that dirt in the traditional valve structure can affect the sealing performance of the valve, and the dirt is difficult to clean, so that the drainage efficiency is reduced, and therefore, the valve convenient for descaling for environmental protection monitoring needs to be designed to solve the problems.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

The valve comprises a valve body and a channel arranged on the valve body, wherein the valve body is rotationally connected with a cylindrical plug, the cylindrical plug is perpendicular to the central axis of the channel, and a flow channel matched with the channel is arranged on the cylindrical plug;

An annular groove is formed in the side wall of the flow channel, an elastic membrane is fixedly connected to the inner wall of the annular groove, an oil storage groove is formed in the cylindrical plug, one end of the oil storage groove is in fluid communication with the annular groove, a piston is in sliding sealing fit in the oil storage groove, an electric spring is arranged on one side, close to the annular groove, of the piston in the oil storage groove, and two ends of the electric spring are fixedly connected with the inner wall of the oil storage groove and the piston respectively;

A current adjusting mechanism is arranged in the cylindrical plug and is electrically connected with the electric spring; and the valve body is provided with a rotary driving mechanism, and the cylindrical plug and the current regulating mechanism are both in driving connection with the rotary driving mechanism.

The valve is characterized in that the valve is used for environment-friendly monitoring and is convenient for descaling, the current regulating mechanism comprises a mounting groove which is formed in the cylindrical plug, a swivel is rotationally arranged in the mounting groove, a plurality of resistance blocks are uniformly arranged on the outer surface of the swivel, and the resistance values of the resistance blocks are gradually reduced along the surface direction of the swivel; the inner wall of the mounting groove is fixedly connected with an electrode block, the outer surface of the electrode block is attached to one side, far away from the axis of the swivel, of the resistor block, and the electric spring, the resistor block and the electrode block are electrically connected.

Above-mentioned environmental protection monitoring is with valve of being convenient for scale removal, rotary driving mechanism is including installing the motor on the valve body, fixedly connected with bull stick on the output of motor, the other end of bull stick penetrates the valve body and is connected with the cylindricality stopper.

Above-mentioned environmental protection monitoring is with valve of being convenient for scale removal, the blind hole has been seted up on the one end of cylindricality stopper coaxially, the bull stick inserts in the blind hole, the surface of bull stick is connected with the inner wall rotation of blind hole, is located offer the spout on the bull stick in the blind hole, sliding fit has the constant head tank in the spout, the constant head tank has been seted up on the inner wall of blind hole, constant head tank block.

Above-mentioned environmental protection monitoring is with valve of being convenient for scale removal, the guide way has been seted up in the cylindricality stopper, sliding fit has the deflector in the guide way, the one end of deflector articulates there is the connecting rod, the other end of connecting rod is articulated with the one end that the constant head tank was kept away from to the locating cap, is located install first reset spring in the guide way of one side that the connecting rod was kept away from to the deflector.

Above-mentioned environmental protection monitoring is with valve of being convenient for scale removal, fixedly connected with actuating lever on the opposite side of deflector, the other end of actuating lever penetrates in the oil storage tank, actuating lever and the coaxial through connection of swivel, fixedly connected with elastic bulge on the actuating lever, a plurality of and elastic bulge assorted long draw-in groove have been seted up on the inner wall of swivel.

Above-mentioned environmental protection monitoring is with valve of being convenient for scale removal, fixedly connected with telescopic link on the inner wall of mounting groove, fixedly connected with elastomeric block on the telescopic end of telescopic link, when the telescopic end of telescopic link stretches out, in the clearance between two adjacent resistance blocks was gone into to the telescopic end card.

Above-mentioned environmental protection monitoring is with valve of being convenient for scale removal, one side coaxial coupling that the cylindricality stopper kept away from the bull stick has the pivot, the valve body is worn out to the other end of pivot, slip through connection has the guide post in the pivot, fixedly connected with fixture block on the one end of guide post, a side of fixture block sets up to the inclined plane, install second reset spring between pivot and the fixture block.

Above-mentioned environmental protection monitoring is with valve of being convenient for scale removal, fixedly connected with arc rack on the valve body, the coaxial outside that sets up in the pivot of arc rack, the fixture block card is gone into in the notch of arc rack, the both ends of arc rack all are provided with limit baffle.

Above-mentioned environmental protection monitoring is with valve of being convenient for scale removal, install pressure sensor on the inner wall of passageway, pressure sensor is close to the delivery outlet setting of passageway, pressure sensor and electric spring electric connection.

The technical scheme of the invention has the following beneficial technical effects:

1. The invention utilizes the structural arrangement of the channel and the runner, dirt accumulation is not easy to generate in the channel, and the device seals the channel through the cylindrical plug, compared with the traditional pipe plug sealing channel, the device can not cause the phenomenon that the channel cannot be completely closed due to the influence of the dirt; and when the device needs to remove the scale, the channel and the runner can be positioned in a unified straight line, so that staff can quickly remove the scale in the channel and at the water outlet of the reaction vessel, and the reduction of drainage efficiency caused by excessive scale accumulation is avoided.

2. The invention is convenient to adjust the flow caliber of the runner, namely the drainage flow rate, and the shape of the flow caliber of the runner is always circular through the matching arrangement of the elastic membrane, the oil storage tank, the piston, the electric spring and the current adjusting mechanism, so that the resistance of water flow passing through the runner is smaller, the efficiency of water flow discharge is further improved, the pressure of the water flow acting on the runner and the channel is balanced, and the possibility of damage caused by high-pressure erosion is reduced.

3. After the drainage flow is regulated, the caliber of the flow channel can be continuously and slightly increased or decreased by the matched arrangement of the telescopic rod, the elastic block, the current regulating mechanism and the rotary driving mechanism, so that blockage caused by dirt accumulation is prevented.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of the present invention in cross-section;

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is a schematic cross-sectional view of the turning lever of the present invention;

FIG. 5 is a schematic view of the structure of the present invention, partially enlarged at A in FIG. 2;

FIG. 6 is a schematic view of the swivel mounting of the present invention;

FIG. 7 is a schematic cross-sectional view of a swivel of the invention;

Fig. 8 is a schematic structural view of an arc-shaped rack of the present invention.

Reference numerals: 1. a valve body; 2. a channel; 3. a cylindrical plug; 4. a flow passage; 5. an annular groove; 6. an elastic film; 7. an oil storage tank; 8. a piston; 9. an electric spring; 10. a current adjusting mechanism; 11. a rotary driving mechanism; 12. a mounting groove; 13. a swivel; 14. a resistor block; 15. an electrode block; 16. a motor; 17. a rotating rod; 18. positioning caps; 19. a positioning groove; 20. a guide groove; 21. a guide plate; 22. a connecting rod; 23. a driving rod; 24. a first return spring; 25. an elastic protrusion; 26. a long clamping groove; 27. a telescopic rod; 28. an elastic block; 29. a rotating shaft; 30. an arc-shaped rack; 31. a guide post; 32. a clamping block; 33. a second return spring; 34. a limit baffle; 35. a pressure sensor.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.

First embodiment

Referring to fig. 1-3, the valve for environment-friendly monitoring in this embodiment comprises a valve body 1 and a channel 2 arranged on the valve body 1, wherein the input end of the valve body 1 is connected with an output port at the bottom of a reaction container, and the output end of the valve body 1 is connected with an external drainage pipeline; the valve body 1 is rotationally connected with the cylindrical plug 3, and it is to be noted that some reaction substances in the water sample are corrosive, and the valve body 1 and the cylindrical plug 3 in the embodiment are made of materials with better corrosion resistance (such as ceramics), so that the service life of the device is prolonged, the cylindrical plug 3 is perpendicular to the central axis of the channel 2, the cylindrical plug 3 is provided with a flow channel 4 matched with the channel 2, and the cylindrical plug 3 is in driving connection with the rotary driving mechanism 11; the rotary driving mechanism 11 can drive the cylindrical plug 3 to rotate, and when the cylindrical plug 3 rotates to the state that the channel 2 is communicated with the inside of the runner 4, water in the reaction vessel is discharged.

As shown in fig. 2 and 3, the rotary driving mechanism 11 comprises a motor 16 installed on the valve body 1, the motor 16 is a forward and reverse rotation motor, a rotating rod 17 is fixedly connected to the output end of the motor 16, the other end of the rotating rod 17 penetrates through the valve body 1 and is connected with the cylindrical plug 3, and the motor 16 drives the rotating rod 17 to rotate so as to enable the cylindrical plug 3 to rotate.

As shown in fig. 2 and 8, a rotating shaft 29 is coaxially connected to one side of the cylindrical plug 3 away from the rotating rod 17, the other end of the rotating shaft 29 penetrates out of the valve body 1, a guide post 31 is connected to the rotating shaft 29 in a sliding and penetrating manner, a clamping block 32 is fixedly connected to one end of the guide post 31, one side surface of the clamping block 32 is an inclined surface, and a second reset spring 33 is installed between the rotating shaft 29 and the clamping block 32; the arc-shaped rack 30 is fixedly connected to the valve body 1, the arc-shaped rack 30 is coaxially arranged on the outer side of the rotating shaft 29, the clamping block 32 is clamped into a notch of the arc-shaped rack 30, and the clamping block 32 can only rotate unidirectionally by matching with the inclined surface of the clamping block 32; both ends of the arc-shaped rack 30 are provided with limit baffles 34, in this embodiment, the central angle corresponding to the arc-shaped rack 30 is 90 degrees, and the rotatable angle of the cylindrical plug 3 driven by the rotating shaft 29 is 90 degrees through the arrangement of the limit baffles 34.

As shown in fig. 1 and 2, when the device of the embodiment is in use, the starting motor 16 drives the rotating rod 17 to rotate with the cylindrical plug 3, and when the cylindrical plug 3 rotates until the channel 2 is communicated with the inside of the runner 4, water in the reaction container can be discharged through the channel 2; it should be noted that, by using the structural arrangement of the channel 2 and the flow channel 4, dirt accumulation is not easy to generate, and the device seals the channel 2 through the cylindrical plug 3, compared with the traditional pipe plug sealing, the phenomenon that the channel 2 cannot be completely closed due to the influence of dirt is not easy to occur.

As shown in fig. 2 and 8, when the cylindrical plug 3 rotates, the rotating shaft 29 drives the clamping block 32 to rotate, and the cylindrical plug 3 can only rotate unidirectionally through the matching arrangement of the inclined surface of the clamping block 32 and the arc-shaped rack 30, so that when the cylindrical plug 3 rotates to a set angle (namely, the drainage flow is adjusted to a set value), high-pressure water flow passes through the flow channel 4, the water flow impacts on the inner wall of the flow channel 4 to enable the cylindrical plug 3 to rotate reversely, and therefore the set drainage flow is changed; when the channel 2 needs to be closed, the guide post 31 is pulled to separate the clamping block 32 from the notch of the arc-shaped rack 30, at the moment, the second return spring 33 compresses the accumulated force, then the guide post 31 is manually rotated 180 degrees, the direction of the inclined surface of the clamping block 32 is further changed, and then when the guide post 31 is loosened, the second return spring 33 abuts against the clamping block 32 to be clamped into the notch of the arc-shaped rack 30, at the moment, when the motor 16 is started to reversely rotate, the cylindrical plug 3 reversely rotates and returns, and therefore the side wall of the cylindrical plug 3 closes the channel 2.

Because excessive dirt can cause the reduction of drainage efficiency, when the scale removal is needed, the channel 2 and the runner 4 are positioned in a unified straight line, and workers can use dredging tools to remove dirt in the channel 2 and at the water outlet of the reaction vessel, so that the reduction of drainage efficiency caused by accumulation and blockage of dirt is avoided.

Second embodiment

Referring to fig. 1-3, in the valve for environmental protection monitoring provided by the first embodiment, in the actual use process, the rotation angle of the cylindrical plug 3 needs to be controlled to adjust the drainage flow, but in a state that the channel 2 is communicated with the channel 4 and is not completely aligned with the channel 4, the water outlet of the channel 4 faces the inner wall of the channel 2, so that the high-pressure water flow output by the channel 4 can impact on the inner wall of the channel 2, and the abrasion of the inner wall is accelerated.

Accordingly, the following modifications are made based on the above-described problems:

As shown in fig. 2,3 and 5, an annular groove 5 is formed in the side wall of the flow channel 4, an elastic membrane 6 is fixedly connected to the inner wall of the annular groove 5, an oil storage groove 7 is formed in the cylindrical plug 3, hydraulic oil is stored in the oil storage groove 7, one end of the oil storage groove 7 is in fluid communication with the annular groove 5, a piston 8 is in sliding sealing fit with the oil storage groove 7, an electric spring 9 is mounted in the oil storage groove 7 at one side, close to the annular groove 5, of the piston 8, and two ends of the electric spring 9 are fixedly connected with the inner wall of the oil storage groove 7 and the piston 8 respectively; a current adjusting mechanism 10 is arranged in the cylindrical plug 3, and the current adjusting mechanism 10 is electrically connected with the electric spring 9.

The current intensity on the electric spring 9 is regulated through the current regulating mechanism 10, so that the expansion or contraction movement of the electric spring 9 can be controlled, and the piston 8 slides in the oil storage tank 7; when the piston 8 moves close to the annular groove 5, the piston 8 pushes hydraulic oil in the oil storage groove 7 to be injected into the annular groove 5, the elastic membrane 6 expands, and the flow caliber of the flow channel 4 is reduced, namely the drainage flow is reduced; when the piston 8 moves in a direction away from the annular groove 5, the hydraulic oil in the annular groove 5 is pumped back into the oil storage groove 7, and the elastic membrane 6 contracts, so that the flow caliber of the flow passage 4 increases, namely the drainage flow rate increases.

When the channel 2 is aligned with the channel 4, the current change is utilized to adjust the flow caliber of the channel 4, so that the drainage flow is adjusted, the accuracy is higher, the situation that the drainage flow can be adjusted only by controlling the rotation angle of the cylindrical plug 3 is avoided, and the situation that the water outlet of the channel 4 faces the inner wall of the channel 2, so that the abrasion of the inner wall is accelerated is avoided; when the flow caliber of the flow channel 4 is changed, the shape of the flow caliber is always round, the resistance of the water body passing through the flow channel 4 is small, the water flow discharging efficiency is improved, the pressure of the water body acting on the flow channel 4 and the flow channel 2 is balanced, and the possibility of damage caused by high-pressure erosion on local parts is reduced.

As shown in fig. 5-7, the current adjusting mechanism 10 comprises a mounting groove 12 arranged in the cylindrical plug 3, a swivel 13 is rotatably arranged in the mounting groove 12, a plurality of resistance blocks 14 are uniformly arranged on the outer surface of the swivel 13, and the resistance values of the resistance blocks 14 are gradually reduced along the surface direction of the swivel 13; an electrode block 15 is fixedly connected to the inner wall of the mounting groove 12, the outer surface of the electrode block 15 is attached to one side of the resistor block 14 far away from the axis of the swivel 13, and the electric spring 9, the resistor block 14 and the electrode block 15 are electrically connected; when the swivel 13 rotates to gradually decrease the resistance value of the resistor block 14 in contact with the electrode block 15, that is, the current intensity on the electric spring 9 gradually increases, the electric spring 9 contracts to move the piston 8 closer to the annular groove 5, and the elastic membrane 6 expands to decrease the flow caliber of the flow passage 4.

As shown in fig. 3-6, the cylindrical plug 3 and the current adjusting mechanism 10 are both in driving connection with the rotary driving mechanism 11, a blind hole is coaxially formed in one end of the cylindrical plug 3, a rotating rod 17 is inserted into the blind hole, the outer surface of the rotating rod 17 is rotationally connected with the inner wall of the blind hole, a sliding groove is formed in the rotating rod 17 positioned in the blind hole, a positioning cap 18 is slidably matched in the sliding groove, a positioning groove 19 is formed in the inner wall of the blind hole, and the positioning cap 18 is clamped with the positioning groove 19; a guide groove 20 is formed in the cylindrical plug 3, a guide plate 21 is slidably matched in the guide groove 20, one end of the guide plate 21 is hinged with a connecting rod 22, the other end of the connecting rod 22 is hinged with one end of the positioning cap 18, which is far away from the positioning groove 19, and a first reset spring 24 is arranged in the guide groove 20, which is positioned on one side of the guide plate 21, which is far away from the connecting rod 22; a driving rod 23 is fixedly connected to the other side of the guide plate 21, and the other end of the driving rod 23 penetrates into the oil storage tank 7.

When the rotating rod 17 rotates, the positioning cap 18 abuts against the positioning groove 19 to enable the cylindrical plug 3 to rotate, so that the position of the cylindrical plug 3 is adjusted, when the cylindrical plug 3 rotates 90 degrees, the cylindrical plug 3 cannot rotate any more, when the rotating rod 17 continues to rotate, the positioning cap 18 is retracted into the sliding groove, the connecting rod 22 drives the guide plate 21 to slide in the guide groove 20, the driving rod 23 extends out of the guide groove 20, meanwhile, the first return spring 24 compresses the power, when the rotating rod 17 continues to rotate until the positioning cap 18 aligns with the next positioning groove 19, the first return spring 24 releases the force to expand and abut against the guide plate 21 to reversely slide and reset, the positioning cap 18 is clamped into the positioning groove 19, meanwhile, the driving rod 23 is retracted into the guide groove 20, and the operation is repeated, so that in the rotating rod 17 rotates, the driving rod 23 continuously reciprocates linearly while following the rotating rod 17.

As shown in fig. 2, 6 and 7, the driving rod 23 is coaxially and penetratingly connected with the swivel 13, an elastic bulge 25 is fixedly connected to the driving rod 23, a plurality of long clamping grooves 26 matched with the elastic bulge 25 are formed in the inner wall of the swivel 13, and the long clamping grooves 26 ensure that the elastic bulge 25 can be matched with the long clamping grooves 26 while the driving rod 23 rotates and reciprocates linearly; when the driving rod 23 rotates forwards or reversely, the elastic bulge 25 abuts against the long clamping groove 26 to enable the swivel 13 to rotate forwards or reversely, the current intensity on the electric spring 9 is increased or decreased, and the electric spring 9 is enabled to expand or contract.

The telescopic rod 27 is fixedly connected to the inner wall of the mounting groove 12, the telescopic rod 27 is an electric telescopic rod, the telescopic end of the telescopic rod 27 is fixedly connected with the elastic block 28, the elastic hardness of the elastic block 28 is smaller than that of the elastic bulge 25, when the flow area of the runner 4 is regulated to a set value, the telescopic end of the telescopic rod 27 stretches out, the telescopic end is clamped into a gap between two adjacent resistor blocks 14, when the driving rod 23 continuously rotates with the rotating ring 13, the elastic block 28 is propped against the resistor blocks 14 to compress and store force, when the elastic block 28 is compressed to a limit, the rotating ring 13 can not continuously rotate due to the blocking of the telescopic end of the telescopic rod 27, but at the moment, the driving rod 23 can continuously rotate, the elastic bulge 25 is compressed and separated from the long clamping groove 26, and after the elastic bulge 25 is separated from the long clamping groove 26, the elastic block 28 releases force and props against the resistor blocks 14 to reversely rotate and reset the rotating ring 13; when the driving rod 23 continues to rotate and the elastic protrusion 25 is clamped into the next long clamping groove 26, the rotating ring 13 is driven to rotate again, and the operation is repeated; after the flow caliber of the flow channel 4 is adjusted, the driving rod 23 rotates to enable the swivel 13 to continuously perform small-amplitude positive and negative rotation, namely, the current intensity on the electric spring 9 continuously performs small-amplitude lifting, so that the flow caliber of the flow channel 4 is continuously subjected to small-amplitude increase and decrease, and the flow channel 4 is prevented from being blocked due to dirt accumulation.

As shown in fig. 3, a pressure sensor 35 is installed on the inner wall of the channel 2, the pressure sensor 35 is close to the output port of the channel 2, the pressure sensor 35 is electrically connected with an electric spring 9, when the blockage occurs in the flow channel 4 or the water discharge is near to the end (the water discharge pressure is lower when the water discharge is near to the end, dirt is easier to accumulate to cause blockage), the pressure sensor 35 detects that the water pressure at the position of the output port of the channel 2 is lower, the electric spring 9 is controlled to be powered off, the electric spring 9 is fully unfolded, the flow caliber of the flow channel 4 is increased to the maximum value, and the blockage of the flow channel 4 caused by dirt accumulation is prevented.

When the device is used, the motor 16 drives the rotating rod 17 to rotate, the positioning cap 18 abuts against the positioning groove 19 to enable the cylindrical plug 3 to rotate, after the cylindrical plug 3 rotates by 90 degrees, the limited position baffle 34 stops acting, the cylindrical plug 3 cannot continue rotating, the channel 2 is completely aligned with the runner 4, the arc-shaped rack 30 and the clamping block 32 are matched, and the position of the cylindrical plug 3 is positioned.

The motor 16 is selected to rotate forward or backward according to the requirement, so that the rotating rod 17 rotates forward or backward, when the rotating rod 17 rotates, the positioning cap 18 is retracted into the sliding groove, the connecting rod 22 drives the guide plate 21 to slide in the guide groove 20, the driving rod 23 stretches out of the guide groove 20, meanwhile, the first return spring 24 compresses the accumulated force, when the rotating rod 17 rotates until the positioning cap 18 aligns with the next positioning groove 19, the first return spring 24 releases the force and pushes against the guide plate 21 to slide reversely for resetting, meanwhile, the positioning cap 18 is clamped into the positioning groove 19, and the driving rod 23 is retracted into the guide groove 20; during the rotation of the rotating rod 17, the driving rod 23 continuously performs linear reciprocating motion while the driving rod 23 follows the rotation of the rotating rod 17.

When the driving rod 23 rotates forwards or reversely, the elastic bulge 25 abuts against the long clamping groove 26 to enable the swivel 13 to rotate forwards or reversely, the resistance value of the resistance block 14 is gradually reduced along the surface direction of the swivel 13, the current intensity on the electric spring 9 is gradually increased or reduced when the swivel 13 rotates, the electric spring 9 is gradually expanded or contracted, and the elastic membrane 6 is expanded or contracted to adjust the flow caliber of the runner 4, so that the drainage flow is adjusted.

When the drainage flow is regulated to a set value, the telescopic end of the telescopic rod 27 stretches out, the telescopic end is clamped into a gap between two adjacent resistor blocks 14, when the driving rod 23 carries the swivel 13 to rotate continuously, the elastic block 28 is compressed to store force, when the elastic block 28 is compressed to the limit, the telescopic end of the telescopic rod 27 blocks the resistor block 14 to enable the swivel 13 not to rotate continuously, at the moment, the driving rod 23 can rotate continuously, the elastic bulge 25 deforms in a compression mode and is separated from the long clamping groove 26, and after the elastic bulge 25 is separated from the long clamping groove 26, the elastic block 28 releases force and abuts against the resistor block 14 to enable the swivel 13 to rotate reversely; then, when the driving rod 23 continues to rotate and the elastic protrusion 25 is clamped into the next long clamping groove 26, the operation is repeated, so that after the drainage flow is adjusted to the set value, when the driving rod 23 continues to rotate, the rotating ring 13 continuously rotates positively and negatively by a small extent, that is, the current intensity on the electric spring 9 continuously rises and falls by a small extent, the circulation caliber of the flow channel 4 continuously increases and decreases by a small extent, and dirt accumulation and blockage are prevented.

When the flow channel 4 is blocked or water drainage is finished, the pressure sensor 35 detects that the water pressure at the position of the output port of the channel 2 is low, the electric spring 9 is controlled to be powered off, the electric spring 9 is fully unfolded, the piston 8 moves to the limit position away from the annular groove 5, the flow caliber of the flow channel 4 is increased to the maximum value, and the blocking caused by dirt accumulation is prevented; when the piston 8 moves to the limit position away from the annular groove 5, one end of the driving rod 23 inserted into the oil storage groove 7 contacts with the piston 8, and when the driving rod 23 performs linear reciprocating motion, the piston 8 can be driven to continuously perform linear reciprocating motion, namely, the circulation caliber of the flow channel 4 is continuously increased and decreased by a small extent, so that blockage caused by dirt accumulation is prevented.

It should be noted that, in the description of the present invention, terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus/means that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus/means.

Claims (3)

1. The utility model provides a valve convenient to scale removal for environmental protection monitoring, its characterized in that includes valve body (1) and sets up passageway (2) on valve body (1), valve body (1) internal rotation is connected with cylindricality stopper (3), cylindricality stopper (3) perpendicular to the central axis setting of passageway (2), set up runner (4) with passageway (2) assorted on cylindricality stopper (3);

An annular groove (5) is formed in the side wall of the flow channel (4), an elastic membrane (6) is fixedly connected to the inner wall of the annular groove (5), an oil storage groove (7) is formed in the cylindrical plug (3), one end of the oil storage groove (7) is in fluid communication with the annular groove (5), a piston (8) is in sliding sealing fit in the oil storage groove (7), an electric spring (9) is arranged on one side, close to the annular groove (5), of the piston (8) in the oil storage groove (7), and two ends of the electric spring (9) are fixedly connected with the inner wall of the oil storage groove (7) and the piston (8) respectively;

A current adjusting mechanism (10) is arranged in the cylindrical plug (3), and the current adjusting mechanism (10) is electrically connected with the electric spring (9); the rotary driving mechanism (11) is arranged on the valve body (1), and the cylindrical plug (3) and the current adjusting mechanism (10) are in driving connection with the rotary driving mechanism (11);

The current adjusting mechanism (10) comprises a mounting groove (12) formed in the cylindrical plug (3), a swivel (13) is rotationally arranged in the mounting groove (12), a plurality of resistor blocks (14) are uniformly arranged on the outer surface of the swivel (13), and the resistance value of the resistor blocks (14) is gradually reduced along the surface direction of the swivel (13); an electrode block (15) is fixedly connected to the inner wall of the mounting groove (12), the outer surface of the electrode block (15) is attached to one side, far away from the axis of the swivel (13), of the resistor block (14), and the electric spring (9), the resistor block (14) and the electrode block (15) are electrically connected;

The rotary driving mechanism (11) comprises a motor (16) arranged on the valve body (1), a rotating rod (17) is fixedly connected to the output end of the motor (16), and the other end of the rotating rod (17) penetrates into the valve body (1) and is connected with the cylindrical plug (3);

A blind hole is coaxially formed in one end of the cylindrical plug (3), the rotary rod (17) is inserted into the blind hole, the outer surface of the rotary rod (17) is rotationally connected with the inner wall of the blind hole, a sliding groove is formed in the rotary rod (17) positioned in the blind hole, a positioning cap (18) is slidably matched in the sliding groove, a positioning groove (19) is formed in the inner wall of the blind hole, and the positioning cap (18) is clamped with the positioning groove (19);

A guide groove (20) is formed in the cylindrical plug (3), a guide plate (21) is slidably matched in the guide groove (20), a connecting rod (22) is hinged to one end of the guide plate (21), the other end of the connecting rod (22) is hinged to one end, far away from the positioning groove (19), of the positioning cap (18), and a first reset spring (24) is arranged in the guide groove (20) at one side, far away from the connecting rod (22), of the guide plate (21);

the other side of the guide plate (21) is fixedly connected with a driving rod (23), the other end of the driving rod (23) penetrates into the oil storage tank (7), the driving rod (23) is coaxially and penetratingly connected with the swivel (13), the driving rod (23) is fixedly connected with an elastic bulge (25), and the inner wall of the swivel (13) is provided with a plurality of long clamping grooves (26) matched with the elastic bulge (25);

one side of the cylindrical plug (3) far away from the rotating rod (17) is coaxially connected with a rotating shaft (29), the other end of the rotating shaft (29) penetrates out of the valve body (1), a guide post (31) is connected on the rotating shaft (29) in a sliding penetrating manner, a clamping block (32) is fixedly connected to one end of the guide post (31), one side surface of the clamping block (32) is set to be an inclined surface, and a second reset spring (33) is installed between the rotating shaft (29) and the clamping block (32);

The valve is characterized in that an arc-shaped rack (30) is fixedly connected to the valve body (1), the arc-shaped rack (30) is coaxially arranged on the outer side of the rotating shaft (29), the clamping blocks (32) are clamped into the notch of the arc-shaped rack (30), and limit baffles (34) are arranged at two ends of the arc-shaped rack (30).

2. The valve convenient for scale removal for environmental protection monitoring according to claim 1, wherein a telescopic rod (27) is fixedly connected to the inner wall of the mounting groove (12), an elastic block (28) is fixedly connected to the telescopic end of the telescopic rod (27), and when the telescopic end of the telescopic rod (27) stretches out, the telescopic end is clamped into a gap between two adjacent resistor blocks (14).

3. The valve convenient for scale removal for environmental protection monitoring according to claim 1, wherein a pressure sensor (35) is installed on the inner wall of the channel (2), the pressure sensor (35) is arranged close to the output port of the channel (2), and the pressure sensor (35) is electrically connected with the electric spring (9).