CN209856450U

CN209856450U - Intelligent leakage-proof water replenishing valve

Info

Publication number: CN209856450U
Application number: CN201821563958.1U
Authority: CN
Inventors: 方真健
Original assignee: Xinchang Jingxin Precision Machinery Parts Co Ltd
Current assignee: Xinchang Jingxin Precision Machinery Parts Co Ltd
Priority date: 2018-09-25
Filing date: 2018-09-25
Publication date: 2019-12-27
Anticipated expiration: 2028-09-25

Abstract

The utility model relates to the field of valves, in particular to an intelligent leakage-proof water replenishing valve, which comprises a valve body, a water inlet and a water outlet, wherein a medium channel is formed between the water inlet and the water outlet; the check valve assembly is arranged in the medium channel at the downstream of the valve core assembly and automatically adjusts the opening angle of the check valve assembly according to the medium pressure at the upstream and the downstream of the check valve assembly; the flow sensor is arranged in the medium channel at the downstream of the valve core assembly and is used for detecting the flow parameter of the fluid; the flow sensor comprises an impeller, and the center of the impeller and the center line of the medium channel are eccentrically arranged; the one-way valve assembly guides the fluid to the outer edge of the blade of the impeller in an inclined mode in an opening state. The intelligent leakage-proof water replenishing valve can automatically adjust the effective pipe diameter of the medium channel, so that the medium is concentrated to flow to the outer edge of the blade of the impeller, the medium can be accurately measured under the condition of small flow, and the accuracy is high.

Description

Intelligent leakage-proof water replenishing valve

Technical Field

The utility model relates to a valve field especially relates to an intelligence leak protection water compensating valve.

Background

The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like. At present, the flow measurement in the valve is performed by means of impeller or turbine type flow measurement, which relies on the power of fluid or gas to drive the impeller or turbine to rotate, thereby generating the change of electric signal for measurement. In order to have enough power to push the impeller or the turbine to rotate at a small flow, the measuring device adds a flow baffle plate in front of the impeller or the turbine, so that the limited power of the fluid acts on the edge of the flow baffle plate to push the flow baffle plate to rotate. The position of the flow baffle can only be fixed at a certain point, and when the area of the flow baffle is larger, small flow data can be better measured, but when the flow baffle is larger, great resistance is generated. The flow baffle has small resistance when the area is small, but small flow data cannot be measured well.

In addition, the pressure measurement in the existing valve is to arrange a pressure tapping hole on the pipe shell, and the pressure tapping hole measures the pressure of fluid or gas, and the pressure tapping mode has two necessary conditions: 1. the pipeline fluid is full; 2. the fluid or gas is non-turbulent before and after the pressure point. Therefore, the measurement accuracy of the fluid with low pressure (power) and the fluid or gas with larger turbulence obviously cannot reach the expected value.

Disclosure of Invention

In order to solve the problem, an object of the utility model is to provide an intelligence leak protection water compensating valve, this intelligence leak protection water compensating valve can automatically regulated medium channel's effective pipe diameter to concentrate the blade outer fringe of medium flow direction impeller, also can the accurate measurement under small flow, the accuracy is high.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an intelligence leak protection water compensating valve which characterized in that: the valve comprises a valve body, a valve body and a valve body, wherein a fluid medium inlet and a fluid medium outlet are arranged on the valve body, and a medium channel is formed between the fluid medium inlet and the fluid medium outlet;

the check valve assembly is arranged in the medium channel at the downstream of the valve core assembly and automatically adjusts the opening angle of the check valve assembly according to the medium pressure at the upstream and the downstream of the check valve assembly;

the flow sensor is arranged in the medium channel at the downstream of the valve core assembly and is used for detecting the flow parameter of the fluid; the flow sensor comprises an impeller, and the center of the impeller and the center line of the medium channel are eccentrically arranged; the one-way valve assembly guides the fluid to the outer edge of the blade of the impeller in an inclined mode in an opening state.

Preferably, the check valve assembly comprises a check valve plate and a torsion spring, and a check valve port is arranged in the valve body; one end of the one-way valve plate is hinged to one side of the valve port of the one-way valve, and the torsion spring is arranged at the hinged end of the one-way valve plate; the acting force of the torsion spring on the one-way valve plate drives the one-way valve plate to close the valve port of the one-way valve. In the technical scheme, the one-way valve plate is driven by the torsion spring, but the elasticity of the torsion spring is small, so that fluid can act on the one-way valve plate under the condition of fluid pressure difference of a valve port of the one-way valve, and the opening degree is automatically adjusted; when the fluid pressure at the downstream of the valve port of the one-way valve is smaller than or equal to the fluid pressure at the upstream of the valve port of the one-way valve, the one-way valve plate is pushed by the power of the fluid to rotate and open. When the fluid pressure at the downstream of the valve port of the one-way valve is larger than or equal to the fluid pressure at the upstream of the valve port of the one-way valve, the fluid counter pressure or the elasticity of the torsion spring drives the one-way valve plate to close the valve port of the one-way valve; thereby preventing the reverse flow of the fluid and allowing the restriction medium to flow only in one direction.

Preferably, the maximum opening angle of the check valve plate is 75 °.

Preferably, a flow cavity is arranged in the valve body at the downstream of the valve port of the one-way valve, and the impeller is rotatably arranged in the flow cavity.

Preferably, the closed-cycle system further comprises a pressure sensor disposed in the media passage downstream of the spool assembly for detecting a fluid pressure parameter indicative of a media characteristic in the closed-cycle system. In the technical scheme, the fluid pressure parameter detected by the pressure sensor is fluid pressure; when the fluid pressure is at a normal pressure value, the closed circulation system is in a normal working state; the rapid reduction of the fluid pressure value represents that the closed circulation system is in a water leakage state; and when the fluid pressure value is frequently and repeatedly decreased, the closed circulation system is in a micro-leakage state.

Preferably, the pressure taking point of the pressure sensor is arranged in a non-turbulent flow area on the downstream side of the valve core assembly and the one-way valve; furthermore, the pressure taking point of the pressure sensor is positioned in the opening inner diameter of the one-way valve plate. In the scheme, when the one-way valve plate is in a closed state, the pressure taking point of the pressure sensor is in the closed circulation system, and the pressure of a fluid medium in the closed circulation system can be monitored; when the check valve plate is in an open state, the pressure taking point of the pressure sensor is located in a guide area of the check valve plate for the medium, and performance parameters of the fluid medium can be accurately monitored in real time.

The above technical scheme is adopted in the utility model, this technical scheme relates to an intelligence leak protection water supply valve, and the check valve subassembly in this intelligence leak protection water supply valve can be according to its opening angle of medium pressure automatically regulated of its low reaches, specifically is under the fluid pressure difference condition of check valve port, and the fluid can act on the check valve piece to automatic regulation aperture. The one-way valve plate has a guiding function on the fluid in an opening state, so that the fluid is focused on one side of the medium channel and is guided to flow to the outer edge of the blade of the impeller, and the power for pushing the impeller to rotate is increased. Therefore, the intelligent leakage-proof water replenishing valve in the scheme can automatically adjust the effective pipe diameter of the medium channel, so that the medium is concentrated to flow to the outer edge of the blade of the impeller, the accurate measurement can be realized under the condition of small flow, and the accuracy is high.

Drawings

Fig. 1 is a schematic perspective view of a leakproof water replenishing valve.

FIG. 2 is a side cross-sectional view of the leak resistant refill valve.

Fig. 3 is a bottom sectional view of the leak-proof water replenishing valve.

Fig. 4 is a partial cross-sectional view of a leak-proof water refill valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example 1:

as shown in fig. 1 to 4, the leak-proof water replenishing valve of the closed circulation system comprises a valve body 1, a valve core assembly 2, a pressure sensor 3, a check valve assembly 4, a flow sensor 5 and a controller 6. The closed circulation system refers to a closed circulation loop in which a medium is in operation, and the closed circulation system applicable to the leakproof water replenishing valve comprises a cold (hot) agent carrying system in an air conditioning system. In the leakage-proof water replenishing valve, a fluid medium inlet 11 and a fluid medium outlet 12 are arranged on a valve body 1, and a medium channel 13 is formed between the fluid medium inlet 11 and the fluid medium outlet 12; the side walls of the nozzles of the fluid medium inlet 11 and the fluid medium outlet 12 are usually provided with connecting threads to facilitate the communication of the pipes. After the leakproof water replenishing valve is connected to the waterway, the downstream of the fluid medium outlet 12 is a closed circulation system, and the upstream of the fluid medium inlet 11 is an external replenishing system. The fluid medium inlet 11 of the valve body 1 is provided with a filter screen 14 which is used for preventing foreign matters from entering a closed circulation system.

The valve core assembly 2 is arranged in the valve body 1 and controls the circulation and the disconnection of the medium channel 13. In one embodiment, the valve core assembly 2 includes a spherical valve core, a driving rod, and a speed reducer, a driving motor, a control board, sealing rings on two sides of the spherical valve core, etc. connected to the driving rod. The ball valve can rotate at 360 ℃, and the ball valve can control the circulation and the disconnection of media when rotating to different positions. In other embodiments, the valve core assembly 2 can also be arranged in a solenoid valve structure, a gate valve structure, a three-way ball valve structure, and the like; if the valve core assembly comprises a diaphragm core body, a valve rod connected with the diaphragm core body, and a coil, a spring and a magnet for driving the valve rod and the diaphragm core body.

The pressure sensor 3 is disposed on the media channel 13 downstream of the valve core assembly 2 and is configured to detect a fluid pressure parameter, which is indicative of a media pressure in the closed circulation system. In particular, under constant operating conditions, the properties of the medium can be characterized by the medium pressure. In the technical scheme, the fluid pressure parameter detected by the pressure sensor is fluid pressure; when the fluid pressure is at a normal pressure value, the closed circulation system is in a normal working state; the rapid reduction of the fluid pressure value represents that the closed circulation system is possibly in a water leakage state; when the fluid pressure value is frequently and repeatedly decreased, the closed circulation system is possibly in a micro-leakage state; and further the action of the valve core assembly can be combined to judge whether the system really leaks water.

The check valve assembly 4 is arranged in the medium channel 13 at the downstream of the valve core assembly 2, and the opening angle of the check valve assembly is automatically adjusted according to the medium pressure at the upstream and the downstream of the check valve assembly. The check valve assembly 4 comprises a check valve plate 41 and a torsion spring 42, and a check valve port 15 is arranged in the valve body 1; one end of the one-way valve plate 41 is hinged to one side of the one-way valve port 15, and the torsion spring 42 is arranged at the hinged end of the one-way valve plate 41; the force of the torsion spring 42 on the check valve plate 41 drives the check valve plate 41 to close the check valve port 15. In the above technical solution, the check valve plate 41 is driven by the torsion spring 42, but the elasticity of the torsion spring 42 is small, so that under the condition of fluid pressure difference of the check valve port 15, fluid acts on the check valve plate 41, thereby automatically adjusting the opening degree; when the fluid pressure downstream of the one-way valve port 15 is smaller than or equal to the fluid pressure upstream of the one-way valve port 15, the one-way valve plate 41 is pushed by the power of the fluid to rotate and open. When the fluid pressure downstream of the check valve port 15 is greater than or equal to the fluid pressure upstream of the check valve port 15, the fluid reverse pressure and the elastic force of the torsion spring 42 drive the check valve plate 41 to close the check valve port 15; thereby preventing the reverse flow of the fluid and allowing the restriction medium to flow only in one direction.

In addition, the maximum opening angle of the check valve plate 41 is 75 degrees, and the pressure taking point 31 of the sensor 3 is positioned in the opening inner diameter of the check valve plate 41; in the scheme, when the one-way valve plate 41 is in a closed state, the pressure taking point of the sensor is in the closed circulation system, and the pressure of a fluid medium in the closed circulation system can be monitored; when the check valve plate 41 is in the open state, the pressure taking point of the sensor 3 is in the guide area of the check valve plate 41 for the medium, and the performance parameters of the fluid medium can be monitored in real time.

The flow sensor 5 is arranged in the medium channel 13 at the downstream of the valve core assembly 2 and is used for detecting the flow of the fluid, the fluid speed of the supplemented medium and the accumulated quality parameters. The flow sensor 5 is realized in terms of its detection function, and does not need to be limited in its installation position; the valve core assembly can be arranged at the front end of the valve core assembly, and can also be arranged at the rear end of the valve core assembly. In a preferred embodiment, however, the flow sensor comprises an impeller 51, a flow cavity 16 is arranged in the valve body 1 downstream of the valve port 15 of the one-way valve, the impeller 51 is rotatably arranged in the flow cavity, and the center of the impeller 51 is eccentrically arranged with the center line of the medium channel 13; the check valve plate 41 guides the fluid obliquely to the outer edge of the vane of the impeller 51 in the opened state. In this technical solution, the check valve plate 41 has a guiding function for the fluid in the open state, so that the fluid is focused on one side of the medium channel 13, and is guided to flow to the outer edge of the blade of the impeller 51, thereby increasing the power for pushing the impeller 51 to rotate. The impeller assembly is provided with an electronic component 52, the rotation of the impeller causes the change of an electric signal of the component, the signal is output to the singlechip CPU, and the signal is processed as a measured value of the flow sensor to participate in control. The flow sensor may be of an impeller type flow measurement detection system, or of course, may be of a flow measurement detection system such as a turbine, a vortex street, or ultrasonic.

And the controller 6 is used for comparing the feedback data of the sensors 3 and 5 with preset system data and controlling the action of the valve core assembly 2 based on the comparison result. It includes the control scheme board of taking the singlechip, and this circuit board mainly comprises 5 parts: the device comprises a power supply part, a signal acquisition input part, a central data processing part, a display operation part and an output execution part.

Based on the above embodiments, the design of the closed cycle system is designed to be three-in-one for pressure measurement, flow measurement, fluid flow direction control, and the like. On one hand, a pressure sensor 3 in the leakproof water replenishing valve is used for monitoring the medium pressure in the closed circulation system, a flow sensor 5 is used for monitoring the total medium replenishing amount in the closed circulation system, a controller 6 automatically controls the valve core assembly 2 to act according to the monitoring result, and when the medium pressure of the closed circulation system is monitored to be reduced, the valve core assembly 2 is started to replenish the medium (such as water, gas, oil or other fluid media) into the closed circulation system from the outside; when the amount of the supplementary medium exceeds a preset value, the combined action of the valve core assembly 2 and the pressure sensor 3 is started, and the system can be definitely judged to be in a large leakage state, a medium leakage state, a small leakage state and the like or still be in a normal state. Thus, the purposes of automatically supplementing the medium and judging leakage are achieved. On the other hand, the leakage-proof water replenishing valve is provided with the movable one-way valve plate 41, when the fluid power is small, the opening degree of the leakage-proof water replenishing valve is properly reduced to increase the fluid power, the turbulent state is overcome, the pressure measurement and the flow measurement of the fluid are more accurate, and the small-flow measurement range or the lower limit range value of the leakage-proof water replenishing valve is expanded. When the fluid power is larger, the valve plate can automatically increase the opening degree of the valve plate to reduce the resistance of the valve plate, and the maximum range or the upper limit range value of the fluid with the same pipe diameter can be enlarged. When the fluid flows reversely, the valve body 1 is closed under the action of fluid power and spring force, and the fluid is prevented from flowing backwards to achieve the function of unidirectional flow.

The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.

Claims

1. The utility model provides an intelligence leak protection water compensating valve which characterized in that: comprises that

The valve body is provided with a fluid medium inlet and a fluid medium outlet, and a medium channel is formed between the fluid medium inlet and the fluid medium outlet;

the check valve assembly is arranged in the medium channel at the downstream of the valve core assembly and automatically adjusts the opening angle of the regulator according to the medium pressure at the upstream and the downstream of the check valve assembly;

2. The intelligent leakproof water supplementing valve of claim 1, wherein: the check valve component comprises a check valve plate and a torsion spring, and a check valve port is arranged in the valve body; one end of the one-way valve plate is hinged to one side of the valve port of the one-way valve, and the torsion spring is arranged at the hinged end of the one-way valve plate; the acting force of the torsion spring on the one-way valve plate drives the one-way valve plate to close the valve port of the one-way valve.

3. The intelligent leakproof water supplementing valve according to claim 2, wherein: the maximum opening angle of the one-way valve plate is 75 degrees.

4. The intelligent leakproof water supplementing valve according to claim 2, wherein: and a flow cavity is arranged in the valve body at the downstream of the valve port of the one-way valve, and the impeller is rotatably arranged in the flow cavity.

5. The intelligent leakproof water supplementing valve according to claim 2, wherein: the pressure sensor is arranged in the medium channel at the downstream of the valve core assembly and used for detecting a fluid pressure parameter.

6. The intelligent leakproof water supplementing valve of claim 5, wherein: and the pressure taking point of the pressure sensor is arranged in a non-turbulent flow area on the downstream side of the valve core assembly and the one-way valve.

7. The intelligent leakproof water supplementing valve of claim 6, wherein: and the pressure taking point of the pressure sensor is positioned in the opening inner diameter of the one-way valve plate.