CN210196504U

CN210196504U - High-pressure electromagnetic water valve

Info

Publication number: CN210196504U
Application number: CN201921088523.0U
Authority: CN
Inventors: Gaoxing Jin; 金高星; Dongjing Guo; 郭东京
Original assignee: Shanghai Europa Flow Control Technology Co Ltd
Current assignee: Shanghai Europa Flow Control Technology Co Ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-03-27
Anticipated expiration: 2029-07-10

Abstract

The utility model relates to a high-pressure electromagnetism water valve, the main valve core cooperation in inserting the main valve body, the pilot valve body is fixed in the main valve body, the main spring is located between pilot valve body and the main valve core and acts on the removal of main valve core, the pilot valve core cooperation in inserting the pilot valve body, manual spring and pilot spring are located the both sides of pilot valve core respectively and act on the removal of pilot valve core jointly, the pilot valve core is magnetic material, the electro-magnet that centers on the pilot valve core setting passes through the removal that the magnetic conduction pipe acted on the pilot valve core, the choke plug has been inserted to the one side of keeping away from the pilot valve body of main valve core, leave the clearance between this choke plug and the main valve core, the rivers passageway in this clearance and the choke plug and the rivers passageway in the main valve core communicate with each other, and can communicate with each other with rivers passageway. According to the utility model discloses a high-pressure electromagnetism water valve through opening or cutting off the water guide earlier, realizes opening or cutting off of main water to realize the sealed or switch on of water under high pressure.

Description

High-pressure electromagnetic water valve

Technical Field

The utility model relates to a water system field, more specifically relates to a high-pressure electromagnetism water valve.

Background

Along with the improvement of living standard of people, the requirement on the cleanness and tidiness degree of the environment is higher and higher, various cleaning water systems are used more and more, and the cleaning water system is provided with fixed equipment and mobile equipment. On the mobile equipment, the available space is narrow, and the installation and maintenance of the equipment are inconvenient. Therefore, the water system with large volume and poor reliability is not suitable for the current market requirement.

Although the traditional ball valve type water system is standardized and low in price, the traditional ball valve type water system is large in size, multiple in accessories, inconvenient to install and low in automation degree. Some high-pressure water system valves appear on the market, but the reliability is poor and the practicability is not high. For example, a high-pressure electromagnetic water valve is known, which can withstand high pressure, but due to an unreasonable structure, is prone to faults such as dirt sticking failure, abrasion, water leakage, and damage, and has low reliability.

SUMMERY OF THE UTILITY MODEL

In order to solve the water valve among the prior art dirty jamming inefficacy scheduling problem appears easily, the utility model aims at providing a high-pressure electromagnetism water valve.

The high-pressure electromagnetic water valve according to the utility model comprises a main valve body, a main valve core, a throttling plug, a main spring, a pilot valve body, a pilot valve core, a manual spring, a magnetic conduction pipe, an electromagnet and a pilot spring, wherein, the main valve core is inserted into the main valve body to be matched, the pilot valve body is fixed in the main valve body, the main spring is arranged between the pilot valve body and the main valve core and acts on the movement of the main valve core, the pilot valve core is inserted into the pilot valve body to be matched, the manual spring and the pilot spring are respectively arranged at two sides of the pilot valve core and act on the movement of the pilot valve core together, the pilot valve core is made of magnetic conduction material, the electromagnet arranged around the pilot valve core acts on the movement of the pilot valve core through the magnetic conduction pipe, the throttling plug is inserted at one side of the main valve core far away from the pilot valve body, a gap is left between the, and is communicable with the water flow passage in the pilot valve body and the water flow passage in the main valve body.

Preferably, the conical contact surfaces of the main valve core and the main valve body form a main sealing surface, the contact surfaces of the O-shaped sealing ring arranged around the main valve core and the main valve body form a main sealing static surface, the diameter of the main sealing static surface is smaller than that of the main sealing static surface, and the ratio of the diameter of the main sealing static surface to the diameter of the main sealing static surface is greater than 0.91 and smaller than 0.99.

Preferably, the length of the sealing line of the primary sealing surface is 4mm or more.

Preferably, the main spool has a cone angle of 30 ° or less.

Preferably, the conical contact surfaces of the pilot spool and the pilot valve body form a pilot sealing surface, and the contact surfaces of the O-ring arranged around the pilot spool and the pilot valve body form a pilot sealing static surface, and the diameter of the pilot sealing surface is equal to the diameter of the pilot sealing static surface.

Preferably, the preload of the pilot spring on the pilot valve core is greater than the preload of the manual spring on the pilot valve core.

Preferably, the water flow passage in the throttle plug is an elongated hole structure, and when the water flow passage in the main valve element is communicated with the water flow passage in the pilot valve body to form pilot water flow, pressure at an inlet and pressure at an outlet of the water flow passage in the throttle plug form a pressure difference to act on movement of the main valve element.

Preferably, the orifice area of the water flow passage in the choke plug is smaller than the annular area of the gap.

Preferably, the clearance is smaller than the diameter of the bore of the water flow passage in the choke plug,

according to the utility model discloses a high-pressure electromagnetism water valve drives the main valve core through the main spring, drives the pilot valve case through pilot spring or electro-magnet to make the rivers passageway in the main valve core communicate with each other or not communicate with each other and open or cut off earlier water guide with the rivers passageway in the pilot valve body, realize opening or cutting off of main water, thereby realize the sealed or switch on of water under high pressure. Particularly, according to the utility model discloses a small cone angle that the throttle stopper was filtered in area covers static pressure balance main valve core and the cooperation of the main valve body greatly, not only can avoid the dirty jamming of water valve to become invalid, can avoid the water valve wearing and tearing to leak the damage moreover.

Drawings

Fig. 1 is an overall schematic view of a high pressure solenoid water valve according to a preferred embodiment of the present invention;

fig. 2 shows a pilot water flow and a main water flow of the high-pressure electromagnetic water valve of fig. 1.

Detailed Description

The following description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1, the high-pressure electromagnetic water valve according to a preferred embodiment of the present invention includes a main valve body 1, a main valve element 2, a throttle plug 3, a main spring 4, a pilot valve body 5, a pilot valve element 6, a manual spring 7, a magnetic conductive pipe 8, an electromagnet 9, and a pilot spring 10. The main valve core 2 is inserted into the main valve body 1 to be matched with the main valve body 1 to achieve the purpose of sealing high-pressure water, the pilot valve body 5 is fixed in the main valve body 1, the main spring 4 is located between the pilot valve body 5 and the main valve core 2 and acts on the movement of the main valve core 2, the pilot valve core 6 is inserted into the pilot valve body 5 to be matched with the pilot valve body 5 to achieve the purpose of sealing the pilot water, the manual spring 7 and the pilot spring 10 are respectively located on two sides of the pilot valve core 6 and act on the movement of the pilot valve core 6 together, the pilot valve core 6 is made of magnetic conductive materials, and an electromagnet 9 arranged around the pilot valve core 6 acts on the movement of the pilot valve. In addition, a throttle plug 3 is inserted into the main valve element 2 on the side remote from the pilot valve body 5, a gap E is left between the throttle plug 3 and the main valve element 2, and the gap E communicates with the water flow passage in the throttle plug 3 and the water flow passage in the main valve element 2, and communicates with the water flow passage in the pilot valve body 5 and the water flow passage in the main valve body 1 when the pilot valve is opened. Only specific technical features of the present invention are described in detail below, and the same configuration as that of the conventional high-pressure electromagnetic water valve is not described in detail.

In the normal state of the electromagnet 9 without power supply, the main valve element 2 is pressed down onto the main valve body 1 under the action of the main spring 4. The metal cone contact surfaces of main valve element 2 and main valve body 1 form a main sealing surface M, and the O-ring contact surface (the contact surface of the O-ring arranged around main valve element 2 and main valve body 1) forms a main sealing static surface N. The diameter of the main sealing surface M is D1, and the diameter of the main sealing static surface N is D2. The pilot valve core 6 pushes the pilot valve core 6 under the action of the pilot spring 10, overcomes the elastic force of the manual spring 7, and presses down on the pilot valve body 5. The conical contact surfaces of the pilot spool 6 and the pilot valve body 5 form a pilot sealing surface P, and the O-ring contact surface (the contact surface of the O-ring arranged around the pilot spool 6 and the pilot valve body 5) forms a pilot sealing static surface Q. The diameter of the pilot seal surface P is d1, and the diameter of the pilot seal static surface Q is d 2. In particular, d1 is d2, the pilot valve spool 6 is theoretically only subjected to the resultant force of the pilot spring 10 and the manual spring 7 under normal conditions, and the pilot valve spool 6 is inevitably pressed down on the pilot valve body 5 because the preload of the pilot spring 10 is larger than the preload of the manual spring 7. At this time, the high-pressure water (along the line a in fig. 2) flows in, passes through the choke plug 3, fills the cavity in the main valve element 2, and the main seal static surface N, the pilot seal static surface P, and the pilot seal static surface Q exist, so that the high-pressure water cannot flow out.

When the electromagnet 9 is energized, an electromagnetic force is generated, the pilot valve core 6 is attracted to the end surface 8' of the magnetic conduction pipe 8, the pilot sealing surface P is opened, and pilot water flows out along the opened pilot sealing surface P through the throttle plug 3, as shown by a pilot water flow line a in fig. 2. Due to the elongated hole structure of the throttle plug 3, during the water flow, the pressure P1 at the inlet 3a and the pressure P2 at the outlet 3B of the throttle plug 3 will generate a pressure difference, P1 > P2, under the action of the pressure difference, the main valve element 2 moves upwards against the action force of the main spring 4, the main sealing surface M is opened, and the high-flow high-pressure water flows out of the main sealing surface M, as shown by the main water flow line B in fig. 2.

Therefore, according to the high-pressure electromagnetic water valve, the electromagnet 9 is electrified, the pilot valve core 6 is adsorbed and moved, the pilot sealing surface P is opened, the pilot water flow A is introduced, and the main water which does not pass through the throttling plug 3 flows, namely the main water flow B is opened; conversely, when the electromagnet 9 is de-energized, the pilot spring 10 pushes the pilot spool 6 to move, the pilot sealing surface P is closed, the pilot water flow a is cut off, the differential pressure between both ends of the choke plug 3 disappears, P1 is equal to P2, the main spool 2 moves under the action of the main spring 4, the main sealing surface M is closed, and the main water flow B is cut off, that is, the electromagnetic valve is closed.

The water has little lubricity and the primary sealing surface M is nearly all metal contact, and with the flowing media the water is not completely clean and there will always be abrasive particles such as grit. When the main valve core 2 is in a closed state and bears high pressure, if D1: D2 is more than 0.99 or D1: D2 is less than 0.91, the main valve core 2 is subjected to certain water pressure and downward pressing force of the spring 4, and a main sealing surface M can generate press-in damage; moreover, any system always has vibration when working, the main valve element 2 is a movable part, and has certain amplitude when actually working, the amplitude is large, the fluctuation clearance of the main sealing surface M is large, and the water leakage is serious; the amplitude is small, the fluctuation gap of the main sealing surface M is small, the pressure loss of the main sealing surface is serious, water is leaked quickly, and the water valve cannot be used.

Particularly, the utility model discloses a main valve element 2's D2 only slightly is greater than D1, and 0.91 < D1: D2 < 0.99, no matter the water pressure is high low like this, main valve element 2 hugs closely always on main valve body 1, forms little static pressure balance, and the holding down force is not big, can not destroy main sealing surface M, consequently, the utility model discloses a main valve element 2 is called static pressure balance case again. And simultaneously, the utility model discloses a main valve element 2 and the length of the main sealing face M's of the main valve body 1 formation sealing line form the big seal structure that covers the volume more than 4mm, and is sealed effectual, and is not fragile, consequently, the utility model discloses a main valve element 2 is called big cover case again. Additionally, the utility model discloses a main valve element 2's cone angle is very little, and less than or equal to 30, even main valve element 2 has slight amplitude, can not form big clearance yet, directly leaks, consequently, the utility model discloses a main valve element 2 is also known as little cone angle case.

Particularly, the utility model discloses a 3 first macropores of throttle plug are little, and water flows into from annular gap E, and the centre bore flows through, and the annular area that clearance E formed is far greater than the centre bore area, and clearance E is less than the centre bore diameter again, so can guarantee that guide's water is unobstructed to flow, can not have big particulate matter to get into the throttle plug centre bore again. The particulate matter that the aquatic contains does not have viscidity, generally is mostly the grit, and even if the card is in the clearance, there is empty gear flowing water as usual between the grit, in case shut down, a lot of particulate matters will drop, next start work, and the particulate matter can flow away along with main rivers, can not appear the guide's rivers jam condition.

What has been described above is only the preferred embodiment of the present invention, not for limiting the scope of the present invention, but various changes can be made to the above-mentioned embodiment of the present invention. All the simple and equivalent changes and modifications made according to the claims and the content of the specification of the present invention fall within the scope of the claims of the present invention. The present invention is not described in detail in the conventional technical content.

Claims

1. A high-pressure electromagnetic water valve is characterized by comprising a main valve body, a main valve core, a throttling plug, a main spring, a pilot valve body, a pilot valve core, a manual spring, a magnetic conduction pipe, an electromagnet and a pilot spring, wherein the main valve core is inserted into the main valve body to be matched, the pilot valve body is fixed in the main valve body, the main spring is positioned between the pilot valve body and the main valve core and acts on the movement of the main valve core, the pilot valve core is inserted into the pilot valve body to be matched, the manual spring and the pilot spring are respectively positioned on two sides of the pilot valve core and act on the movement of the pilot valve core together, the pilot valve core is made of magnetic conduction materials, the electromagnet arranged around the pilot valve core acts on the movement of the pilot valve core through the magnetic conduction pipe, the throttling plug is inserted into one side of the main valve core, a gap is reserved between the throttling plug and the main valve core, and the gap is communicated with a, and is communicable with the water flow passage in the pilot valve body and the water flow passage in the main valve body.

2. The high-pressure solenoid water valve of claim 1, wherein the conical contact surfaces of the main poppet and the main poppet form a main sealing face, wherein an O-ring disposed around the main poppet and the contact surface of the main poppet form a main sealing land, wherein the diameter of the main sealing land is less than the diameter of the main sealing land, and wherein a ratio of the diameter of the main sealing land to the diameter of the main sealing land is greater than 0.91 and less than 0.99.

3. The high pressure solenoid water valve of claim 2, wherein the length of the seal line of the primary sealing surface is greater than 4 mm.

4. The high pressure solenoid water valve of claim 1, wherein the main spool has a taper angle of 30 ° or less.

5. The high-pressure solenoid water valve of claim 1, wherein the conical contact surfaces of the pilot poppet and the pilot body form a pilot sealing face, and wherein the contact surfaces of the O-ring disposed around the pilot poppet and the pilot body form a pilot sealing land, the diameter of the pilot sealing face being equal to the diameter of the pilot sealing land.

6. The high-pressure electromagnetic water valve of claim 1, wherein the pre-pressure of the pilot spring on the pilot spool is greater than the pre-pressure of the manual spring on the pilot spool.

7. The high-pressure electromagnetic water valve according to claim 1, wherein the water flow passage in the throttle plug is an elongated hole structure, and when the water flow passage in the main spool communicates with the water flow passage in the pilot valve body to form pilot water flow, a pressure difference is formed between a pressure at an inlet and a pressure at an outlet of the water flow passage in the throttle plug to act on movement of the main spool.

8. The high pressure solenoid water valve of claim 7, wherein the orifice area of the water flow passage in the choke plug is less than the annular area of the gap.

9. The high pressure solenoid water valve of claim 7, wherein the clearance is less than a bore diameter of the water flow passage in the choke plug.