CN215908485U

CN215908485U - Fluid pressure regulating and overvoltage protection device

Info

Publication number: CN215908485U
Application number: CN202122330081.XU
Authority: CN
Inventors: 陈婉璐
Original assignee: Anhui Ruisi Industrial Technology Co ltd
Current assignee: Anhui Ruisi Industrial Technology Co ltd
Priority date: 2021-09-25
Filing date: 2021-09-25
Publication date: 2022-02-25
Anticipated expiration: 2031-09-25

Abstract

The application relates to the field of pressure regulating valve technology, in particular to a fluid pressure regulating and overpressure protecting device, which comprises a first valve body and an alarm assembly, wherein the first valve body comprises a valve seat and a protective cover, a piston is arranged in the valve seat, a flow passage is arranged at the bottom end of the valve seat, one end of the flow passage is a water inlet, the other end of the flow passage is a water outlet, a first inlet communicated with the valve seat is arranged on the flow passage, the piston is abutted against the first inlet, the valve seat is connected with the protective cover, an adjusting assembly is arranged in the protective cover, a diaphragm is arranged between the protective cover and the valve seat, and the diaphragm is abutted against the piston; the warning subassembly includes casing and slider, and the casing setting has seted up the slotted hole on the protecting cover, casing upper surface, and the slider is pegged graft with the slotted hole, and this application has the effect of simplifying pipeline structure.

Description

Fluid pressure regulating and overvoltage protection device

Technical Field

The application relates to the field of pressure regulating valve technology, in particular to a fluid pressure regulating and overvoltage protection device.

Background

The pressure regulating valve is also called self-operated balance valve, flow control valve, dynamic balance valve, etc. and is one simple visual flow regulating and controlling device.

The safety valve is a special valve body, wherein the opening and closing part is in a normally closed state under the action of external force, and when the pressure of fluid in the pipeline rises to exceed a specified value, the medium pressure in the pipeline or equipment is prevented from exceeding the specified value by discharging the medium to the outside of the system, so that the safety valve plays an important role in protecting personal safety and equipment operation.

In the fluid conveying process, the pressure regulation and the protection effect on the fluid can be realized only by installing different valve bodies on the pipeline, so that the pipeline structure is complicated.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that pipeline structure is complicated, this application provides a fluid pressure regulating and overvoltage protection device.

The application provides a fluid pressure regulating and overvoltage protection device adopts following technical scheme:

a fluid pressure regulating and overpressure protecting device comprises a first valve body and an alarming assembly, wherein the first valve body comprises a valve seat and a protective cover, a piston is arranged in the valve seat, a flow passage is arranged at the bottom end of the valve seat, one end of the flow passage is a water inlet, the other end of the flow passage is a water outlet, a first inlet communicated with the valve seat is arranged on the flow passage, the piston is abutted against the first inlet, the valve seat is connected with the protective cover, an adjusting assembly is arranged in the protective cover, a diaphragm is arranged between the protective cover and the valve seat, and the diaphragm is abutted against the piston;

the alarm assembly comprises a shell and a sliding block, the shell is arranged on the protective cover, a slotted hole is formed in the upper surface of the shell, and the sliding block is connected with the slotted hole in an inserting mode.

By adopting the technical scheme, when the pressure of the conveyed fluid is greater than the set value of the first valve body, the sliding block slides out of the slotted hole, the prompting effect is achieved, an operator is reminded of adjusting the pressure of the fluid in time, and the occurrence of safety accidents is reduced. Meanwhile, the pressure of fluid delivery forces the piston to move upwards, the pressure of the fluid is adjusted through the valve body, and the pressure of the fluid flowing out is relatively stable. Whole pressure regulating and overvoltage protection process can be accomplished through a device, and the installation is simple, has reduced the quantity of required valve on the one hand for pipeline structure simplifies, has improved the installation effectiveness, and on the other hand has also reduced the risk of leaking.

Optionally, the side wall of the slider is provided with a first contact, the housing is internally provided with a second contact, the outer side of the housing is provided with an alarm lamp, and when the fluid pressure is lower than a normal value, the first contact and the second contact are separated.

Through adopting above-mentioned technical scheme, when the fluid pressure of carrying was greater than the setting value of first valve body, first contact and second contact, the alarm lamp lights this moment, and the operator can audio-visually observe out whether fluidic pressure surpasss the setting value through whether the alarm lamp lights.

Optionally, the adjusting part includes adjusting screw and first backing plate, the through-hole has been seted up to the guard shield upper surface, adjusting screw and through-hole threaded connection just stretch into in the guard shield, adjusting screw stretches into the one end in the guard shield and rotates with first backing plate to be connected, first backing plate has the second backing plate through spring coupling, second backing plate and diaphragm butt, first valve body sets up the logical groove with the casing intercommunication, second backing plate part is located logical inslot, the slider butt is on the second backing plate.

By adopting the technical scheme, an operator extrudes the spring by screwing the adjusting screw rod, the pressure value in the valve seat is adjusted through the deformation quantity of the spring, and when the fluid pressure is lower than a set value, the piston abuts against the port of the flow passage; when the fluid conveying pressure is larger than a set value, the spring is compressed, the second base plate drives the sliding block to move upwards, the first contact is in contact with the second contact, the alarm circuit is closed at the moment, the alarm lamp is turned on, and an operator is timely reminded of adjusting the fluid conveying pressure.

Optionally, a step surface clamped with the second gasket is arranged on the sliding block.

By adopting the technical scheme, the step surface increases the interaction stability between the sliding block and the second base plate, and is beneficial to reducing the relative distance between the sliding block and the second base plate, thereby saving the occupied space.

Optionally, the valve further comprises a second valve body, the second valve body is the same as the first valve body in structure, the valve seats of the first valve body and the second valve body are fixedly connected, the flow channel comprises an inflow channel and an outflow channel which are fixed to each other, the inflow channel corresponds to the valve seat in the first valve body, the inflow channel is communicated with the valve seat in the second valve body, the first inlet and the water inlet are both arranged on the inflow channel, the outflow channel corresponds to the valve seat in the second valve body, a second inlet communicated with the valve seat is arranged on the outflow channel, and the water outlet is arranged at one end, far away from the inflow channel, of the outflow channel.

Through adopting above-mentioned technical scheme, first valve body is used for adjusting the pressure when fluid transport and the overpressure protection when fluid transport, and the second valve body then transports away fluid.

Optionally, an overflow channel is communicated with a side wall of the valve seat in the first valve body.

Through adopting above-mentioned technical scheme, when the fluid pressure of carrying was too big, the piston in the first valve body moved up and opened first entry, and the fluid discharges the pressure release through overflow path, carries out overpressure protection to fluid transport, reduces the possibility that the incident takes place in the fluid transportation.

Optionally, the outflow channel is provided with a pressure measuring port, and the pressure measuring port is connected with a pressure gauge.

Through adopting above-mentioned technical scheme, the pressure when the operator audio-visual observation fluid flows is made things convenient for in the setting of manometer.

Optionally, a separation disc is arranged on the inner side wall of the valve seat, the piston is inserted into the separation disc, and the separation disc is abutted to the diaphragm.

By adopting the technical scheme, the separation disc plays a role in guiding the piston.

Optionally, a sealing ring is arranged on the piston.

Through adopting above-mentioned technical scheme, the leakproofness between piston and first entry has been improved in the setting of sealing washer.

Optionally, the second contact is fixedly connected to the inner side wall of the housing through an adjusting screw.

Through adopting above-mentioned technical scheme, through rotating adjusting screw, can adjust the relative position of first contact and second contact to the maximum pressure value of first valve body is set for to the cooperation adjusting part, demand when adapting to multiple fluid and carrying.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the pressure regulating and overvoltage protection structure for fluid conveying is integrated, the installation is simple, the number of required valves is reduced, and the pipeline structure is simplified;

2. the first valve body is used for adjusting the pressure during fluid delivery and overpressure protection during fluid delivery, and the second valve body delivers the fluid, so that the fluid delivery device can meet the requirements of various fluid deliveries.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

FIG. 2 is a cross-sectional view of a valve seat in an embodiment of the present application.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Description of reference numerals: 1. a first valve body; 2. an alarm component; 21. a housing; 211. a slot; 212. a second contact; 22. a slider; 23. a first contact; 24. an adjusting screw; 25. an alarm lamp; 26. a through groove; 3. a valve seat; 31. a flow channel; 311. a water inlet; 312. a water outlet; 32. an overflow channel; 33. an inflow channel; 331. a first inlet; 34. an outflow channel; 341. a pressure measuring port; 342. a pressure gauge; 35. a second inlet; 4. a shield; 41. a through hole; 5. an adjustment assembly; 51. a first backing plate; 52. a second backing plate; 521. a step surface; 53. adjusting the screw rod; 54. a spring; 6. a diaphragm; 7. a piston; 71. a seal ring; 8. a separator disc; 9. a second valve body.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a fluid pressure regulating and overvoltage protection device. As shown in fig. 1 and 2, the fluid pressure regulating and overpressure protecting device includes a first valve body 1, a second valve body 9, a protective cover 4, a flow passage 31 and an alarm component 2, wherein the first valve body 1 and the second valve body 9 both include a valve seat 3, a piston 7 and a separation disc 8, the separation disc 8 is fixed in the valve seat 3, the outer contour of the separation disc 8 is matched with the inner contour of the valve seat 3, the piston 7 is inserted in the separation disc 8, a sealing ring 71 is embedded at the bottom of the piston 7, and the valve seat 3 in the first valve body 1 and the valve seat 3 in the second valve body 9 are integrally formed.

As shown in fig. 2, the shields 4 correspond to the two valve seats 3 one by one, the shields 4 are fixed on the valve seats 3 through bolts, a diaphragm 6 is arranged between the shields 4 and the valve seats 3, the diaphragm 6 has elasticity and is in a loose state, the diaphragm 6 is clamped by the shields 4 and the valve seats 3, so that the shields 4 and the valve seats 3 are sealed, and meanwhile, the diaphragm 6 also seals the openings of the valve seats 3.

An adjusting component 5 is arranged in the protective cover 4, and the alarm component 2 is arranged on the protective cover 4 corresponding to the first valve body 1.

The runner 31 and the two valve seats 3 are integrally formed, the runner 31 comprises an inflow channel 33, an outflow channel 34 and an overflow channel 32 which are integrally formed and mutually blocked, the inflow channel 33 corresponds to the two valve seats 3, the inflow channel 33 is provided with a water inlet 311 and a first inlet 331 which are just opposite to each other, the first inlet 331 protrudes into the valve seat 3 corresponding to the first valve body 1, the first inlet 331 and the overflow channel 32 are both communicated with the interior of the valve seat 3 in the first valve body 1, a sealing ring 71 on the piston 7 is abutted against the first inlet 331 to seal the first inlet 331, and one end, far away from the overflow channel 32, of the inflow channel 33 is communicated with the valve seat 3 in the second valve body 9.

The outflow channel 34 corresponds to the valve seat 3 in the second valve body 9, the outflow channel 34 is provided with a second inlet 35 and a pressure measuring port 341 which are oppositely distributed, the second inlet 35 is communicated with the valve seat 3 in the second valve body 9, the second inlet 35 protrudes into the valve seat 3, meanwhile, the valve seat 3 corresponds to the sealing ring 71 on the piston 7 and abuts against the first inlet 331 to seal the first inlet 331, one end of the outflow channel 34, which is far away from the flow pipe, is provided with a water outlet 312, the pressure measuring port 341 is located on one side of the outflow channel 34, which is far away from the valve seat 3, and a pressure gauge 342 is installed at the pressure measuring port 341 of the outflow channel 34 to detect the fluid pressure in the outflow channel 34.

The adjusting assembly 5 comprises a spring 54 and an adjusting screw 53, the spring 54 is located in the first valve body 1, a through hole 41 is formed in the center of the upper surface of the protective cover 4, the adjusting screw 53 is in threaded connection with the through hole 41 and extends into the protective cover 4, one end of the adjusting screw 53 located in the protective cover 4 is rotatably connected with a first base plate 51, the first base plate 51 is fixedly connected with one end of the spring 54, the other end of the spring 54 is fixedly connected with a second base plate 52, and the second base plate 52 is abutted to the diaphragm 6.

An operator twists the adjusting screw 53 to move down, so that the second cushion plate 52 pushes the diaphragm 6 to abut against the piston 7, the two pistons 7 are forced to abut against the first inlet 331 and the second inlet 35 respectively, meanwhile, the thrust of the second cushion plate 52 is adjusted by adjusting the deformation amount of the compressed spring 54, the adjustment of the internal pressure value of the valve seat 3 is realized, and when the fluid pressure in the valve seat 3 exceeds the set pressure value, the fluid can push the piston 7 to open and enter the corresponding valve seat 3.

As shown in fig. 2 and 3, a through groove 26 is formed in a position, close to the diaphragm 6, of the side wall of the shield 4 corresponding to the first valve body 1, the through groove 26 is communicated with the inside of the housing 21, and the second shim plate 52 is partially positioned in the through groove 26 and can move up and down along the through groove 26. Alarm assembly 2 includes casing 21 and with slider 22, casing 21 is fixed on the guard shield 4 that first valve body 1 corresponds, alarm lamp 25 is installed to the casing 21 outside, the casing 21 inside wall is fixed with second contact 212 through adjusting screw 24, slotted hole 211 has been seted up on the casing 21, slider 22 one end is located logical groove 26, the other end is worn out from slotted hole 211, make slider 22 can reciprocate, and slider 22 moving direction and adjusting screw 53 axis are parallel, the one end that slider 22 is located logical groove 26 is equipped with the step face 521 with second backing plate 52 joint, make slider 22 edge butt on second backing plate 52, one side that slider 22 deviates from first backing plate 51 is equipped with first contact 23.

When the fluid pressure in the valve seat 3 in the first valve body 1 is smaller than a set value, the first contact 23 is separated from the second contact 212, the first contact 23 is lower than the second contact 212, when the fluid pressure exceeds the set value, the fluid pressure forces the piston 7 to move upwards to jack the diaphragm 6, so that the second base plate 52 moves upwards, the spring 54 is compressed, the second base plate 52 drives the sliding block 22 to slide upwards in the through groove 26, the first contact 23 is in contact with the second contact 212, the alarm circuit is closed, the alarm lamp 25 is turned on, and an operator is prompted to adjust the fluid pressure in time; after the operator adjusts the fluid pressure, the sliding block 22 is manually pressed to reset, at the moment, the first contact 23 is not contacted with the second contact 212, the alarm circuit is disconnected, and the alarm lamp 25 is turned off.

The implementation principle of the embodiment of the application is as follows: the pressure value set by the first valve body 1 is greater than the pressure value set by the second valve body 9, when the pressure of the delivered fluid is less than the pressure value set by the first valve body 1 and greater than the pressure value set by the second valve body 9, the fluid flows into the valve seat 3 of the second valve body 9 along the inflow channel 33, the piston 7 is forced to move upwards by the pressure of the fluid, the diaphragm 6 deforms, the spring 54 in the second valve body 9 is compressed, the fluid flows out through the outflow channel 34, and the pressure gauge 342 can display the real-time pressure of the fluid to realize the regulation of fluid delivery; when the pressure of the conveyed fluid is greater than the pressure value set by the first valve body 1, the fluid pressure forces the piston 7 of the first valve body 1 to move upwards, the fluid flows into the valve seat 3 and is discharged through the overflow channel 32, meanwhile, the spring 54 of the first valve body 1 is compressed and drives the sliding block 22 to move upwards, so that an alarm loop is closed, the alarm lamp 25 is turned on, an operator is reminded to adjust the pressure of the fluid conveying in time, and the possibility of safety accidents is reduced. By installing the device, the pressure regulation and overvoltage protection functions of the fluid can be realized at the same time, the installation is simpler, and the pipeline structure is simplified.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A fluid pressure regulating and overvoltage protection device is characterized in that: the alarm valve comprises a first valve body (1) and an alarm component (2), wherein the first valve body (1) comprises a valve seat (3) and a protective cover (4), a piston (7) is arranged in the valve seat (3), a flow channel (31) is arranged at the bottom end of the valve seat (3), one end of the flow channel (31) is a water inlet (311), the other end of the flow channel is a water outlet (312), a first inlet (331) communicated with the valve seat (3) is formed in the flow channel (31), the piston (7) is abutted to the first inlet (331), the valve seat (3) is connected with the protective cover (4), an adjusting component (5) is arranged in the protective cover (4), a diaphragm (6) is arranged between the protective cover (4) and the valve seat (3), and the diaphragm (6) is abutted to the piston (7);

alarm component (2) include casing (21) and slider (22), casing (21) set up on guard shield (4), slotted hole (211) have been seted up to casing (21) upper surface, slider (22) are pegged graft with slotted hole (211).

2. A fluid pressure regulating and over-pressure protection device as claimed in claim 1, wherein: the side wall of the sliding block (22) is provided with a first contact (23), the shell (21) is internally provided with a second contact (212), the outer side of the shell (21) is provided with an alarm lamp (25), and when the pressure of fluid is lower than a normal value, the first contact (23) is separated from the second contact (212).

3. A fluid pressure regulating and over-pressure protection device as claimed in claim 1, wherein: adjusting part (5) include adjusting screw (53) and first backing plate (51), through-hole (41) have been seted up to guard shield (4) upper surface, adjusting screw (53) and through-hole (41) threaded connection just stretch into guard shield (4) in, adjusting screw (53) stretch into the one end in guard shield (4) and rotate with first backing plate (51) and be connected, first backing plate (51) are connected with second backing plate (52) through spring (54), second backing plate (52) and diaphragm (6) butt, logical groove (26) that communicate with casing (21) are seted up in first valve body (1), second backing plate (52) part is located logical groove (26), slider (22) butt is on second backing plate (52).

4. A fluid pressure regulating and over-pressure protection device as claimed in claim 3, wherein: and a step surface (521) clamped with the second base plate (52) is arranged on the sliding block (22).

5. A fluid pressure regulating and over-pressure protection device as claimed in claim 1 or 3, wherein: the valve also comprises a second valve body (9), the structure of the second valve body (9) is the same as that of the first valve body (1), and the valve seats (3) of the first valve body (1) and the second valve body (9) are fixedly connected, the flow channel (31) comprises an inflow channel (33) and an outflow channel (34) which are fixed to each other, the inflow channel (33) corresponds to a valve seat (3) in the first valve body (1), and the inflow channel (33) communicates with a valve seat (3) in the second valve body (9), the first inlet (331) and the water inlet (311) are both provided on the inflow channel (33), the outflow channel (34) corresponds to a valve seat (3) in the second valve body (9), and the outflow channel (34) is provided with a second inlet (35) communicated with the valve seat (3), the water outlet (312) is arranged at one end of the outflow channel (34) far away from the inflow channel (33).

6. A fluid pressure regulating and over-pressure protection device as claimed in claim 5, wherein: the side wall of the valve seat (3) in the first valve body (1) is communicated with an overflow channel (32).

7. A fluid pressure regulating and over-pressure protection device as claimed in claim 5, wherein: the outflow channel (34) is provided with a pressure measuring port (341), and the pressure measuring port (341) is connected with a pressure gauge (342).

8. A fluid pressure regulating and over-pressure protection device as claimed in claim 1, wherein: the inner side wall of the valve seat (3) is provided with a separation disc (8), the piston (7) is inserted in the separation disc (8), and the separation disc (8) is abutted to the diaphragm (6).

9. A fluid pressure regulating and over-pressure protection device as claimed in claim 1, wherein: and a sealing ring (71) is arranged on the piston (7).

10. A fluid pressure regulating and over-pressure protection device as claimed in claim 2, wherein: the second contact (212) is fixedly connected to the inner side wall of the shell (21) through an adjusting screw (24).