阅读说明：本技术 一种浮球式双向截止阀控制系统 (Floating ball type bidirectional stop valve control system ) 是由 华光明 汪斌 张敏 黄森辰 邓永峰 于 2020-07-22 设计创作，主要内容包括：本发明涉及一种浮球式双向截止阀控制系统,包括排水管道、安装在排水管道上的真空阀及控制真空阀启闭的双向截止浮球；所述双向截止浮球内部设置有双向截止阀,所述双向截止阀具有与大气相连通的大气进气口、与排水管道相连通的负压进气口及与真空阀相连通的真空阀连接口,内部设置有分别单独密封大气进气口及负压进气口的重力钢珠；本发明中真空阀的启闭通过双向截止阀进行控制,采用了纯机械结构,不会产生电源压降等缺陷,整体结构简单,原理可靠,没有运行成本；同时双向截止阀为本发明的核心部件,其安装在密封的双向截止浮球内部,不受气候与使用环境的影响,保证了核心部件的使用寿命。(The invention relates to a floating ball type bidirectional stop valve control system, which comprises a drainage pipeline, a vacuum valve arranged on the drainage pipeline and a bidirectional stop floating ball for controlling the opening and closing of the vacuum valve; the bidirectional stop floating ball is internally provided with a bidirectional stop valve, the bidirectional stop valve is provided with an atmosphere air inlet communicated with the atmosphere, a negative pressure air inlet communicated with a drainage pipeline and a vacuum valve connecting port communicated with a vacuum valve, and the bidirectional stop floating ball is internally provided with gravity steel balls for respectively and independently sealing the atmosphere air inlet and the negative pressure air inlet; the opening and closing of the vacuum valve are controlled by the two-way stop valve, the pure mechanical structure is adopted, the defects of power supply voltage drop and the like are avoided, the overall structure is simple, the principle is reliable, and the operation cost is avoided; meanwhile, the bidirectional stop valve is a core component of the invention, is arranged in the sealed bidirectional stop floating ball, is not influenced by weather and use environment, and ensures the service life of the core component.)

1. The utility model provides a ball float formula two-way stop valve control system which characterized in that: comprises a drainage pipeline, a vacuum valve arranged on the drainage pipeline and a bidirectional stop floating ball for controlling the vacuum valve to open and close; the bidirectional stop floating ball is internally provided with a bidirectional stop valve, the bidirectional stop valve is provided with an atmosphere air inlet communicated with the atmosphere, a negative pressure air inlet communicated with the drainage pipeline and a vacuum valve connecting port communicated with the vacuum valve, and the bidirectional stop floating ball is internally provided with gravity steel balls for respectively and independently sealing the atmosphere air inlet and the negative pressure air inlet.

2. The floating ball type two-way stop valve control system according to claim 1, wherein: the bidirectional stop valve comprises a shell, a first end cover and a second end cover which are arranged at the upper end and the lower end of the shell, and a gravity steel ball arranged in the shell; the inner part of the shell is provided with a cavity with a section in an 8 shape along the vertical direction, and the gravity steel ball is arranged in the cavity; the vacuum valve connecting port is arranged on the side wall of the shell, the atmosphere air inlet is arranged on the first end cover, and the negative pressure air inlet is arranged on the second end cover.

3. The floating ball type two-way stop valve control system according to claim 2, wherein: and the end faces of one side of the first end cover and the second end cover in the cavity are provided with plane sealing rings in a nested manner.

4. The floating ball type two-way stop valve control system according to claim 2, wherein: the vacuum valve is arranged between the water pumping pipeline and the negative pressure pipeline and is used for connecting the water pumping pipeline and the negative pressure pipeline; the vacuum valve is characterized in that the atmosphere air inlet is connected with an atmosphere air inlet pipe, a negative pressure air inlet pipe is connected between the negative pressure air inlet and the negative pressure pipeline, and a valve body vent pipe is connected between the vacuum valve connecting port and the vacuum valve.

5. The floating ball type two-way stop valve control system according to claim 4, wherein: and a liquid level switch is arranged at one end of the atmosphere air inlet pipe, which is far away from the atmosphere air inlet.

6. The floating ball type two-way stop valve control system according to claim 4, wherein: the side wall of the water pumping pipeline is connected with an air discharging pipe, one end of the air discharging pipe, which is deviated to the water pumping pipeline, extends upwards along the vertical direction, and one end, which is far away from the water pumping pipeline, is provided with an air discharging adjusting valve; the atmosphere air inlet pipe, the negative pressure air inlet pipe and the valve body vent pipe are arranged in a laminating and air discharging mode and are fixedly connected through a buckle.

Technical Field

The invention relates to the technical field of bidirectional stop valves, in particular to a floating ball type bidirectional stop valve control system.

Background

In a negative pressure sewage collection system, two control methods are commonly adopted: firstly, the buoyancy of the floating ball is utilized, the electromagnetic valve is conducted at high water level, and the negative pressure vacuum diaphragm valve is opened through the electromagnetic valve to realize negative pressure water pumping; when the water level is low, the buoyancy is weakened, the electromagnetic valve is powered off, and the negative pressure vacuum diaphragm valve closes the valve to stop pumping water under the action of the atmosphere; secondly, opening of the negative pressure vacuum diaphragm valve is controlled by pressure difference, water pressure rises at a high water level, when a set value is reached, the electromagnetic valve is conducted, and the negative pressure vacuum diaphragm valve is opened through the electromagnetic valve to realize negative pressure water pumping; when the water level is low, the water pressure is weakened, when the water level reaches a set value, the electromagnetic valve is powered off, and the negative pressure vacuum diaphragm valve closes the valve to stop pumping water under the action of the atmosphere; in both of the above two control methods, a power supply is required to realize the control, but the following defects exist when the power supply is used: (1) the cable conveying distance of the sewage collection system engineering is long, so that the pressure drop at the tail end of the cable is large, the vacuum well at the tail end is greatly influenced by the pressure drop, and the equipment is unstable in operation; (2) the investment cost is high, the equipment failure rate is high, and each vacuum well can influence each other; (3) the waterproof requirement is high, and cables, wiring terminals, electromagnetic valves and the like are well waterproof, so that correspondingly used equipment columns are specially arranged beside the vacuum well; (4) the system is complex to install and high in cost; therefore, the invention develops a floating ball type bidirectional stop valve control system to solve the problems in the prior art, and a technical scheme which is the same as or similar to that of the invention is not found through retrieval.

Disclosure of Invention

The invention aims to: the floating ball type bidirectional stop valve control system is provided to solve the problems of unstable operation, high failure rate, high cost and the like of a series of devices caused by the fact that the on-off of a valve needs to be controlled by a power supply in the sewage collection process in the prior art.

The technical scheme of the invention is as follows: a floating ball type bidirectional stop valve control system comprises a drainage pipeline, a vacuum valve arranged on the drainage pipeline and a bidirectional stop floating ball for controlling the vacuum valve to open and close; the bidirectional stop floating ball is internally provided with a bidirectional stop valve, the bidirectional stop valve is provided with an atmosphere air inlet communicated with the atmosphere, a negative pressure air inlet communicated with the drainage pipeline and a vacuum valve connecting port communicated with the vacuum valve, and the bidirectional stop floating ball is internally provided with gravity steel balls for respectively and independently sealing the atmosphere air inlet and the negative pressure air inlet.

Preferably, the bidirectional stop valve comprises a shell, a first end cover and a second end cover which are arranged at the upper end and the lower end of the shell, and a gravity steel ball arranged in the shell; the inner part of the shell is provided with a cavity with a section in an 8 shape along the vertical direction, and the gravity steel ball is arranged in the cavity; the vacuum valve connecting port is arranged on the side wall of the shell, the atmosphere air inlet is arranged on the first end cover, and the negative pressure air inlet is arranged on the second end cover.

Preferably, the first end cover and the second end cover are provided with plane sealing rings on one side end faces in the cavity in a nested manner.

Preferably, the drainage pipeline comprises a water pumping pipeline and a negative pressure pipeline, and the vacuum valve is installed between the water pumping pipeline and the negative pressure pipeline and is used for connecting the water pumping pipeline and the negative pressure pipeline; the vacuum valve is characterized in that the atmosphere air inlet is connected with an atmosphere air inlet pipe, a negative pressure air inlet pipe is connected between the negative pressure air inlet and the negative pressure pipeline, and a valve body vent pipe is connected between the vacuum valve connecting port and the vacuum valve.

Preferably, one end of the atmosphere air inlet pipe, which is far away from the atmosphere air inlet, is provided with a liquid level switch.

Preferably, the side wall of the water pumping pipeline is connected with an air release pipe, one end of the air release pipe, which is deviated to the water pumping pipeline, extends upwards along the vertical direction, and one end, which is far away from the water pumping pipeline, is provided with an air release regulating valve; the atmosphere air inlet pipe, the negative pressure air inlet pipe and the valve body vent pipe are arranged in a laminating and air discharging mode and are fixedly connected through a buckle.

Compared with the prior art, the invention has the advantages that:

(1) the opening and closing of the vacuum valve are controlled by the two-way stop valve, the pure mechanical structure is adopted, the defects of power supply voltage drop and the like are avoided, the overall structure is simple, the principle is reliable, and the operation cost is avoided; meanwhile, the bidirectional stop valve is a core component of the invention, is arranged in the sealed bidirectional stop floating ball, is not influenced by weather and use environment, and ensures the service life of the core component.

(2) Compared with the prior art, the invention has low investment cost in the early stage, and is applied to the vacuum wells, each vacuum well is a complete independent body, and the normal operation of other equipment cannot be influenced by one fault, so that the fault rate of the whole equipment is reduced.

(3) The invention has no waterproof requirement, so that a control upright post is not required to be additionally arranged on the periphery of the vacuum well, the structure is simpler, the site installation is convenient, and the invention is safe and reliable.

Drawings

The invention is further described with reference to the following figures and examples:

FIG. 1 is a schematic structural diagram of a floating ball type bidirectional stop valve control system according to the present invention when a vacuum valve is triggered to close;

FIG. 2 is a schematic structural diagram of the two-way stop valve of the present invention;

FIG. 3 is a close-up view of a floating ball type two-way stop valve control system according to the present invention;

fig. 4 is a structural schematic diagram of the floating ball type bidirectional stop valve control system when the vacuum valve is triggered to open.

Wherein: 1. drainage pipe, 2, water pumping pipe, 3, negative pressure pipe, 4, vacuum valve, 5, two-way stop floater, 6, two-way stop valve, 7, casing, 8, cavity, 9, gravity steel ball, 10, first end cover, 11, second end cover, 12, plane sealing washer, 13, vacuum valve connector, 14, atmosphere air inlet, 15, negative pressure air inlet, 16, valve body breather pipe, 17, atmosphere intake pipe, 18, negative pressure intake pipe, 19, liquid level switch, 20, gas release pipe, 21, gassing governing valve.

Detailed Description

The present invention will be further described in detail with reference to the following specific examples:

as shown in fig. 1, a floating ball type bidirectional stop valve control system, which is applied to a vacuum well and used for pumping and discharging sewage discharged into the vacuum well, mainly comprises a drainage pipeline 1, a vacuum valve 4 installed on the drainage pipeline 1, and a bidirectional stop floating ball 5 for controlling the vacuum valve 4 to open and close.

The drainage pipeline 1 is in a 7-shaped structure and comprises a water pumping pipeline 2 arranged along the vertical direction and a negative pressure pipeline 3 arranged along the horizontal direction, and the water pumping pipeline 2 is used for extending downwards to the lower part of a vacuum well during installation so as to be convenient for pumping water; the vacuum valve 4 is installed between the water pumping pipeline 2 and the negative pressure pipeline 3 and is used for connecting the water pumping pipeline 2 and the negative pressure pipeline 3.

The bidirectional stop floating ball 5 is a sealing structure, the bidirectional stop floating ball 6 is arranged in the bidirectional stop floating ball, as shown in fig. 2, the bidirectional stop floating ball 6 comprises a shell 7, a first end cover 10 and a second end cover 11 which are nested and matched and installed at the upper end and the lower end of the shell 7, and a gravity steel ball 9 arranged in the shell 7, a cavity 8 with an 8-shaped section along the vertical direction is arranged in the shell 7, and the gravity steel ball 9 is arranged in the cavity 8 and can move in the cavity 8; the gravity steel ball 9 is used for plugging an atmospheric air inlet or a negative pressure air inlet in different states, so that a planar sealing ring 12 is nested on the end surface of one side of the first end cover 10 and the second end cover 11 in the cavity 8, and the sealing performance of plugging is effectively ensured; a vacuum valve connecting port 13 communicated with the cavity 8 is arranged on the side wall of the shell 7, an atmosphere air inlet 14 communicated with the cavity 8 is arranged on the first end cover 10, and a negative pressure air inlet 15 communicated with the cavity 8 is arranged on the second end cover 11; as shown in fig. 3, the vacuum valve connection port 13 is communicated with the vacuum valve 4 through a valve body vent pipe 16, the atmosphere air inlet 14 is connected with an atmosphere air inlet pipe 17, a liquid level switch 19 is further arranged at one end far away from the atmosphere air inlet 14, and the negative pressure air inlet 15 is communicated with the negative pressure pipeline 3 through a negative pressure air inlet pipe 18.

As a further optimization of this embodiment, since the rise and fall of the liquid level in the vacuum well may affect the gas pressure inside the water pumping pipeline 2, the side wall of the water pumping pipeline 2 is connected with the gas release pipe 20, one end of the gas release pipe 20, which is biased to the water pumping pipeline 2, extends upward along the vertical direction, and one end, which is far away from the water pumping pipeline 2, is provided with a gas release regulating valve 21; and because two-way stop valve 6 need set up in the tip of vacuum well lower extreme, consequently atmosphere intake pipe 17, negative pressure intake pipe 18 and valve body breather pipe 16 need extend downwards, arrange too in a jumble in order to prevent each pipeline, set up its laminating bleeder 20 to through buckle fixed connection, can not influence the upset of two-way stop floater 5 during the buckle connection, and for the convenience of the connection of buckle, the bleeder 20 that sets up along vertical direction can adopt the stereoplasm structure.

When the vacuum well is at a low water level, the bidirectional stop floating ball 5 is vertically downward and is in a state shown in figure 1, the bidirectional stop valve 6 inside the bidirectional stop floating ball 5 is in a state shown in figure 2, the gravity steel ball 9 falls on the bottom of the shell 7 under the action of gravity to seal the negative pressure air inlet 15, the sealing performance of the sealing is ensured due to the action of the planar sealing ring 12, the atmosphere air inlet 14 is communicated with the vacuum valve connecting port 13, and the vacuum valve 4 is closed; the vacuum valve 4 belongs to the prior art, and the internal diaphragm is rapidly deformed and closed mainly due to the action of the atmosphere, so the detailed structure of the internal part of the vacuum valve 4 will not be further described in detail in the present invention.

When being in the high water level in the vacuum well, two-way stop floater 5 can take place 180 rotations under the control of the traction, the state is as shown in fig. 4, 180 rotations also can take place for two-way stop valve 6 this moment, its state is opposite with fig. 2 state, gravity steel ball 9 can drop to the bottom under the effect of gravity, seal atmosphere air inlet 14, and because the effect of plane sealing washer 12, the leakproofness of shutoff has been guaranteed, negative pressure air inlet 15 switches on with vacuum valve connector 13 mutually this moment, vacuum valve 4 opens, it mainly can make inside diaphragm shrink fast because of the effect of negative pressure gas, because belong to prior art, do not do more detailed description yet.

Meanwhile, in order to consider the influence of extreme weather, such as rainstorm, water in the vacuum well overflows, water easily enters the atmosphere air inlet pipe 17, and the normal opening and closing of the vacuum valve 4 are influenced at the moment, a liquid level switch 19 is arranged at the end part of the atmosphere air inlet pipe 17, and before the water in the vacuum well overflows, the liquid level switch 19 can automatically close the two-way stop valve 6, namely, the atmosphere air inlet 14 is blocked, and the negative pressure air inlet 15 is communicated with the vacuum valve connecting port 13, so that the normal operation of the vacuum valve 4 is ensured.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore desired that the present embodiments be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, without any reference thereto being construed as limiting the claim concerned.