CN211951625U

CN211951625U - Pressure-sustaining ball cock

Info

Publication number: CN211951625U
Application number: CN202020620119.XU
Authority: CN
Inventors: 许圣传; 王满川
Original assignee: Tianjin Chentian Smart Water Co ltd
Current assignee: Tianjin Chentian Smart Water Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2020-11-17
Anticipated expiration: 2030-04-22

Abstract

The utility model provides a pressure-sustaining ball cock, which comprises a main valve, wherein the water inlet of the main valve is communicated with a municipal water supply pipeline through a water inlet pipeline, and the water outlet of the main valve is communicated with a secondary water supply tank of a living community through a water outlet pipeline; a water inlet control pipeline is arranged between the water inlet pipeline and the main valve control chamber, a first water outlet control pipeline is correspondingly arranged in the main valve control chamber, a ball float valve, a first ball valve and a pilot valve are sequentially arranged on the first water outlet control pipeline, and the pilot valve is communicated with the water inlet pipeline. Hold and press ball-cock assembly, the main valve control room has set up the pilot valve to set up fixed pressure, whether control main valve plate is opened, guarantee municipal water supply pressure stability, alleviate water gauge rotation phenomenon. Meanwhile, normal water use of the household on the lower layer and directly communicated with the municipal water supply system is ensured.

Description

Pressure-sustaining ball cock

Technical Field

The utility model belongs to the technical field of the ball-cock assembly, especially, relate to and hold pressure ball-cock assembly.

Background

In the existing residential district water supply system, a floor-divided secondary water supply system is mostly adopted, so that the direct water supply of low-floor residents such as 1-4-floor resident residents is ensured, the water supply of high-floor residents such as 5 th floor residents and above floors through the secondary water supply system is ensured, namely, a certain amount of water is stored in a water tank firstly, and the water supply of the high-floor residents is ensured through the water tank. In a secondary water supply system, a remote control ball float valve is usually adopted to realize municipal water supply and control the automatic water supply of a water tank so as to ensure the water storage capacity in the water tank. This conventional remote control ball-cock assembly leads to municipal pipe network water pressure oscillation owing to breaking open the suddenly and closing when using, arouses the water gauge rotation, and when the water peak appeared in addition, this conventional remote control ball-cock assembly valve control water tank mode of intaking led to the fact the resident water difficulty of low floor resident because of municipal water supply pressure reduces very easily.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing hold and press the ball-cock assembly to guarantee that municipal water supply system's water pressure is stable, the normal water of low floor resident family when guaranteeing the water peak simultaneously.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the pressure-sustaining ball float valve comprises a main valve, wherein a water inlet of the main valve is communicated with a municipal water supply pipeline through a water inlet pipeline, and a water outlet of the main valve is communicated with a secondary water supply tank of a residential community through a water outlet pipeline;

a water inlet control pipeline is arranged between the water inlet pipeline and the main valve control chamber, and a needle valve is arranged on the water inlet control pipeline;

the water tank is characterized in that a first water outlet control pipeline is correspondingly arranged in the main valve control chamber, a ball float valve, a first ball valve and a pilot valve are sequentially arranged on the first water outlet control pipeline, the first ball valve is positioned between the ball float valve and the pilot valve, a floating ball of the ball float valve is arranged in the water tank in a suspending manner, and the pilot valve is communicated with a water inlet pipeline.

Furthermore, a second water outlet control pipeline is connected to the first water outlet control pipeline at the position beside the position between the floating ball valve and the first ball valve, the second water outlet control pipeline is communicated with the main valve control chamber, a normally closed electric valve is arranged on the second water outlet control pipeline, a liquid level meter for monitoring the water level height of the water tank is arranged in the water tank, and the liquid level meter and the normally closed electric valve are respectively and electrically connected with the controller.

Furthermore, a second ball valve is arranged on the first water outlet control pipeline at a position between the pilot valve and the control chamber of the main valve.

Compared with the prior art, hold and press ball-cock assembly have following advantage:

hold and press the ball-cock assembly, the main valve control room has set up the pilot valve, this pilot valve has set up fixed pressure, with municipal water intake pressure and this pressure value carry out the comparison, simultaneously through the floater in the ball-cock assembly in the water tank position, whether control main valve plate is opened, when municipal water intake pressure is lower, the water tank does not intake, and then make with this water tank intercommunication, be located high-rise secondary water supply resident family priority and use the water tank and store water, guarantee municipal water supply pressure stability, alleviate water gauge rotation phenomenon. Meanwhile, normal water use of the household on the lower layer and directly communicated with the municipal water supply system is ensured.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic view of a pressure-sustaining float valve according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an embodiment of the present invention;

FIG. 3 is a schematic diagram of the second embodiment of the present invention;

FIG. 4 is a schematic diagram of the third embodiment of the present invention;

fig. 5 is a schematic diagram of the application of the pressure-sustaining ball float valve of the embodiment.

Description of reference numerals:

1-a first ball valve; 2-a pilot valve; 3-a second ball valve; 4-a third ball valve; 5-needle valve; 6-normally closed electric valve; 7-a ball float valve; 8-a main valve; 9-a water inlet control pipeline; 10-a first water outlet control pipeline; 11-a second water outlet control pipeline.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "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 used merely for convenience of description and for 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. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in figure 1, the pressure-sustaining ball float valve comprises a main valve 8, wherein a water inlet of the main valve 8 is communicated with a municipal water supply pipeline through a water inlet pipeline, a water outlet of the main valve 8 is communicated with a secondary water supply tank of a living community through a water outlet pipeline, and secondary water supply of the municipal water supply system to the water tank of the community is realized. A water inlet control pipeline 9 is arranged between the water inlet pipeline and the main valve control chamber, and a needle valve 5 is arranged on the water inlet control pipeline 9; the control chamber of the main valve 8 is correspondingly provided with a first water outlet control pipeline 10, the first water outlet control pipeline 10 is sequentially provided with a ball float valve 7, a first ball valve 1, a pilot valve 2 and a second ball valve 3, the first ball valve 1 is positioned between the ball float valve 7 and the pilot valve 2, the pilot valve 2 is positioned between the first ball valve 1 and the second ball valve 3, a floating ball of the ball float valve 7 is arranged in the water tank in a suspending manner, the pilot valve 2 is communicated with a water inlet pipeline, and the water inlet pipeline inputs a water source for controlling the on-off state conversion of a valve block of the pilot valve 2 into the pilot valve 2 so as to control the on-off state of the first ball valve 1, the pilot valve 2. The specific principle is that the water pressure entering the pilot valve 2 (namely the water pressure in the water inlet pipe) is compared with the preset spring pressure of the pilot valve 2, when the water pressure of the water inlet pipe is greater than the preset spring pressure of the pilot valve 2, a valve plate in the pilot valve 2 is opened, and the first ball valve 1 is communicated with the second ball valve 3 through the pilot valve 2 (because the first ball valve 1 and the second ball valve 3 are in a normally open state, the pilot valve 2 is opened, and the first ball valve 1 is communicated with the second ball valve 3 instantly). When the water pressure of the water inlet pipe is smaller than the preset pressure of the spring of the pilot valve 2, the valve plate in the pilot valve 2 is in a closed state, the first ball valve 1 and the second ball valve 3 are not conducted (at the moment, the opening or closing of the first ball valve 1 and the second ball valve 3 does not influence the non-conduction state), and the pressure relief of the water in the control chamber of the main valve 8 cannot be carried out. In order to monitor the water pressure in the water inlet pipeline in time, a monitoring pipeline communicated with the water inlet pipeline is connected beside the pilot valve 2, a pressure gauge is connected at the outlet of the monitoring pipeline, and the water pressure value in the water inlet pipeline is monitored in real time through the pressure gauge. The monitoring pipeline is provided with a third ball valve 4, and the third ball valve 4 is in a normally open state.

In this embodiment, the first water outlet control pipeline 10 is connected to a second water outlet control pipeline 11 beside the position between the float valve 7 and the first ball valve 1, the second water outlet control pipeline 11 is communicated with the upper chamber of the main valve control chamber, the second water outlet control pipeline 11 is provided with a normally closed electric valve 6, a level gauge for monitoring the water level of the water tank is arranged in the water tank, and the level gauge and the normally closed electric valve 6 are respectively electrically connected with the controller.

In the design, a fixed pressure (namely the water discharge pressure of a main valve control chamber, for example, the fixed pressure value is 0.18MPa) is set through a pilot valve 2, municipal water inlet pressure (namely the water inlet pressure of a main valve water inlet, namely the water pressure in a water inlet pipeline) is compared with the set pressure of the pilot valve 2, the on-off of the pilot valve 2 is controlled according to the current water level in a water tank and the control water level of a floating ball valve (corresponding to the floating ball positioned at the highest position), namely whether the main valve control chamber discharges water or not is controlled, namely the on-off of a main valve 8 is controlled, the water injection of the water tank is controlled, high-rise residents such as 5 th and above residents preferentially use the water tank to store water, the low-rise residents still directly supply water through a municipal water supply system, the phenomenon that the municipal water supply pressure caused by municipal water supply when water peaks, the water meter can reduce the autorotation phenomenon of the water meter and ensure normal water use of residents on low floors such as 1-4 floors during the peak time of water use.

The working principle of the pressure-sustaining ball float valve is explained by three embodiments.

In the first embodiment, when the liquid level in the water tank is lower than the float valve controlled water level and the municipal water supply pressure is higher than the set pressure of the pilot valve, the water flow direction is as shown in fig. 2, in this state, the pilot valve 2 is in an open state, the pressure in the upper chamber of the main valve control chamber is reduced, under the operation of the municipal water supply pressure, the main valve 8 is opened, the water flow passes through, the water tank starts to be filled, and when the water level in the water tank is increased to the float valve controlled water level, the pilot. If the municipal water supply pressure is less than the set pressure of the pilot valve 2, the pilot valve 2 is closed, the pressure of the upper cavity of the main valve control chamber is increased, the main valve 8 is closed, and the water tank stops water inlet. Therefore, high-rise residents, such as residents on the 5 th floor and above, which are communicated with the water tank are supplied with water preferentially by the water tank, the phenomenon that the municipal water supply pipeline is unstable in water pressure due to the fact that water consumption is too large is avoided when a water peak occurs, and municipal water supply systems supply water to the water tank on the one hand and directly supply water to low-rise residents (such as residents on the 1-4 floors) on the other hand, and the water meter rotation phenomenon is further reduced. Meanwhile, because the high-rise residents preferentially use the water stored in the water tank, the normal water use of the low-rise residents, such as 1-4-rise residents, is ensured during the peak time of water use.

The working principle of the pressure-holding ball valve is shown in fig. 5, a water source from a municipal water supply system directly supplies water to low-rise residents such as 1-4 floors, and supplies water to secondary water supply water tanks of high-rise residents such as 5 floors and above, in the secondary water supply system, in order to ensure the normal use of a water pump connected with the water tanks, in order to prevent the occurrence of the shutdown phenomenon of the water pump caused by too low water level in the water tank, a safe water level needs to be arranged at the position above the low water level (namely the shutdown water level of the water pump) in the water tank, when the liquid level in the water tank is reduced to the position below the safe water level, the water pump faces the shutdown danger, and therefore the water level in the water tank needs to be kept above the safe water level, and the problem of hidden troubles caused by the excessive. For the second embodiment, when the liquid level is lower than the safe water level and the municipal water supply pressure is lower than the set pressure of the pilot valve 2, as shown in fig. 3, when the water level in the water tank is lower than the safe water level and higher than the shut-down water level, the pilot valve 2 is in a closed state at the moment, the liquid level meter sends a monitored position signal of the liquid level in the water tank to the controller, the controller controls the normally closed electric valve 6 to open, the pressure of the upper cavity of the control chamber of the main valve is reduced, the main valve 8 is opened, water flows through, and the water tank. When the liquid level returns to be higher than the safe liquid level after the water tank enters water, the normally closed electric valve 6 is closed, the pressure of the upper cavity of the main valve control chamber is increased, the main valve is closed, and the water tank stops water entering.

In the third embodiment, as shown in fig. 4, when the water level in the tank rises to the float valve controlled water level, the water flows away in the figure, and in this state, the water level in the tank rises to the float valve controlled water level, so that the float of the float valve rises, the pressure in the upper chamber of the valve control chamber increases, the main valve plate closes, and the water tank stops feeding water.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Hold pressure ball cock, its characterized in that: the water supply system comprises a main valve (8), wherein a water inlet of the main valve (8) is communicated with a municipal water supply pipeline through a water inlet pipeline, and a water outlet of the main valve (8) is communicated with a secondary water supply tank of a living community through a water outlet pipeline;

a water inlet control pipeline (9) is arranged between the water inlet pipeline and the main valve control chamber, and a needle valve (5) is arranged on the water inlet control pipeline (9);

the water tank is characterized in that a first water outlet control pipeline (10) is correspondingly arranged in a control chamber of the main valve (8), a floating ball valve (7), a first ball valve (1) and a pilot valve (2) are sequentially arranged on the first water outlet control pipeline (10), the first ball valve (1) is positioned between the floating ball valve (7) and the pilot valve (2), a floating ball of the floating ball valve (7) is arranged in the water tank in a suspending manner, and the pilot valve (2) is communicated with a water inlet pipeline.

2. The pressure-sustaining float valve according to claim 1, wherein: the first water outlet control pipeline (10) is connected with a second water outlet control pipeline (11) at the position between the floating ball valve (7) and the first ball valve (1), the second water outlet control pipeline (11) is communicated with a main valve control chamber, a normally closed electric valve (6) is arranged on the second water outlet control pipeline (11), a liquid level meter for monitoring the water level of the water tank is arranged in the water tank, and the normally closed electric valve (6) is respectively electrically connected with the controller.

3. The pressure-sustaining float valve according to claim 1 or 2, wherein: and a second ball valve (3) is arranged at a position between the pilot valve (2) and the control chamber of the main valve of the first water outlet control pipeline (10).