阅读说明：本技术 一种真空引水箱 (Vacuum water diversion box ) 是由 杨木森 于 2020-06-06 设计创作，主要内容包括：本发明涉及一种真空引水箱,包括箱体,箱体由隔板隔离成真空腔和引水腔,在真空腔与引水腔之间设有隔离阀；其特征是：隔离阀采用橘皮阀结构,橘皮阀采用橡胶皮与呼吸板上的呼吸孔组成密封副,当引水腔内水位上升时,浮球上升使橡胶皮横向变形封闭呼吸板上的呼吸孔,将引水腔与真空腔密封隔离；当引水腔内水位下降时,橘皮阀的橡胶皮在浮球重力作用下向下拉伸,逐渐开通呼吸板上的呼吸孔,开启橘皮阀。其结构简单,操作简单、方便,工作灵活、可靠。(The invention relates to a vacuum water diversion tank, which comprises a tank body, wherein the tank body is isolated into a vacuum cavity and a water diversion cavity by a partition plate, and an isolation valve is arranged between the vacuum cavity and the water diversion cavity; the method is characterized in that: the isolating valve adopts an orange peel valve structure, the orange peel valve adopts rubber skin to form a sealing pair with a breathing hole on the breathing plate, when the water level in the water diversion cavity rises, the floating ball rises to enable the rubber skin to transversely deform to seal the breathing hole on the breathing plate, and the water diversion cavity is sealed and isolated from the vacuum cavity; when the water level in the diversion cavity is reduced, the rubber skin of the orange skin valve is stretched downwards under the gravity action of the floating ball, the breathing hole on the breathing plate is gradually opened, and the orange skin valve is opened. The device has the advantages of simple structure, simple and convenient operation, and flexible and reliable work.)

1. A vacuum water diversion tank comprises a tank body (10), wherein the tank body (10) is isolated into a vacuum cavity (2) and a water diversion cavity (7) by a partition plate (3), the bottom of the water diversion cavity (7) is provided with a water diversion port (N3) communicated with an inlet channel of a vacuum self-priming pump, the water diversion port (N3) is arranged on a bottom cover (9) of the water diversion tank, the vacuum cavity (2) is provided with an air suction port (N1) communicated with an inlet of the air suction pump, and an isolation valve is arranged between the vacuum cavity (2) and the water diversion cavity (7); the method is characterized in that: isolation valve adopts the orange peel valve structure, this orange peel valve is including breathing the board, floater (8), rubber skin (11), the breathing board adopts and sets up a plurality of breather hole (4) at baffle (3) intermediate position and constitutes, fixed mounting puts at plane central point under breathing the board in the middle of rubber skin (11), both ends and floater (8) fixed connection, the distribution position of breather hole (4) is when floater (8) rise to the highest position, breather hole (4) are located the contact surface inboard between rubber skin (11) and the breathing board.

2. The vacuum drainage box according to claim 1, wherein: the rubber (11) adopts a rectangular structure.

3. The vacuum drainage box according to claim 2, wherein: the floating ball (8) is connected with the rubber sheet (11) through a connecting rod and a fixing plate (5), the lower end of the connecting rod is fixedly connected with the floating ball (8), the upper end of the connecting rod is fixedly connected with the center of the lower end face of the fixing plate (5), and the upper end face of the fixing plate (5) is fixedly connected with the two ends of the rubber sheet (11).

4. A vacuum drainage tank according to claim 1, 2 or 3, characterized in that: a filter screen (6) is fixedly installed on the breathing plate outside the orange peel valve, the floating ball (8) is positioned on the lower end face lower side of the filter screen (6), and the upper end of the connecting rod movably penetrates into the inner side of the filter screen (6) to be connected with the fixing plate (5).

5. The vacuum drainage box according to claim 4, wherein: the lower end surface of the filter screen (6) is provided with a horn-shaped floating ball limiting guide cylinder.

Technical Field

The invention relates to a vacuum water diversion tank. The invention is suitable for the vacuum pumping water guide tank of the inlet channel of the vacuum self-priming pump.

Background

The vacuum water-guiding tank is arranged at an inlet channel of the vacuum self-priming pump and is used for sucking air in the pump cavity and then injecting water into the pump cavity. It is known that if a vacuum pump is pneumatically operated and the pump chamber is filled with air, the vacuum pump will idle, and cannot deliver liquid medium at the inlet of the pump to the outlet, and even the impeller idles to burn out the motor or the diesel engine. Therefore, the inlet of the vacuum pump is provided with a vacuum pumping or water injection device. For example, the vacuum self-sucking pump with an auxiliary sucking mechanism, which is invented by the present company and has patent number CN201610399931.2, is characterized in that the auxiliary sucking mechanism is installed on an inlet channel of a pump body and consists of a vacuum water guider, a vacuum pump and a condenser. The vacuum water leading device consists of a vacuum cavity and a water leading cavity, an isolating valve is arranged between the vacuum cavity and the water leading cavity, when the pump is started, the suction assisting mechanism is started simultaneously to suck air in the pump cavity, so that the pump can normally run, and the running safety of the pump is protected. The main disadvantages are: the valve clack of the isolating valve is connected with the floating ball through the connecting rod mechanism, when the floating ball floats upwards, the connecting rod mechanism pulls the valve clack to rise to be sealed with the valve seat, when the water level descends, the valve clack cannot be separated from the valve seat under the negative pressure suction of the vacuum cavity, a compensating valve needs to be installed on the side wall of the vacuum cavity, the isolating valve needs to be opened through manually operating the compensating valve after shutdown every time, the structure is complex, and the operation is very troublesome. Most importantly, the connecting rod mechanism is soaked in sewage for a long time, the dirt is deposited on the connecting rod, the connecting rods which are connected with each other are blocked and cannot rotate flexibly, the isolating valve is disabled, the vacuum self-priming pump cannot run normally or even is damaged, and the working reliability is poor.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the vacuum water diversion tank with simple structure, simple operation and good working reliability.

The technical scheme includes that the vacuum self-priming vacuum pump comprises a box body, wherein the box body is isolated into a vacuum cavity and a water diversion cavity by a partition plate, the bottom of the water diversion cavity is provided with a water diversion port communicated with an inlet channel of a vacuum self-priming pump, the vacuum cavity is provided with an air suction port communicated with an inlet of an air suction pump, and an isolation valve is arranged between the vacuum cavity and the water diversion cavity; the method is characterized in that: the isolating valve adopts orange peel valve structure, and this orange peel valve is including breathing board, floater, rubber skin, and the breathing board adopts to set up a plurality of breather hole on the baffle and makes, and fixed mounting puts at plane central point under the breathing board in the middle of the rubber skin, both ends and floater upper end fixed connection, and the distribution position of breather hole is in the contact surface between rubber skin and the breathing board when the floater rises to the highest position.

In the above technical scheme, the rubber skin adopts a rectangular structure.

In the above technical scheme, the floating ball is connected with the rubber sheet through the connecting rod and the fixing plate, the lower end of the connecting rod is fixedly connected with the floating ball, the upper end of the connecting rod is fixedly connected with the center of the lower end face of the fixing plate, and the upper end face of the fixing plate is fixedly connected with the two ends of the rubber sheet.

In above technical scheme, fixed mounting filter screen on the baffle in the orange peel valve outside, the floater is located filter screen lower extreme face downside, and the activity of connecting rod upper end penetrates the filter screen inboard and is connected with the fixed plate.

In the technical scheme, the lower end face of the filter screen is provided with a horn-shaped floating ball limiting guide cylinder.

Compared with the prior art, the invention has the beneficial effects that: the orange peel valve adopts a sealing pair consisting of a rubber skin and a breathing hole of a breathing plate, when the water level in the water diversion cavity rises, the floating ball rises to enable the rubber skin to transversely deform to seal the breathing hole on the breathing plate, and the water diversion cavity is sealed and isolated from the vacuum cavity; when the water level in the diversion cavity is reduced, the rubber skin of the orange skin valve is stretched downwards under the gravity action of the floating ball, the breathing hole on the breathing plate is gradually opened, and the orange skin valve is opened. The device has the advantages of simple structure, simple and convenient operation, and flexible and reliable work.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Detailed Description

The vacuum water diversion tank shown in fig. 1 comprises a tank body 10, wherein the tank body 10 is separated into a vacuum cavity 2 and a water diversion cavity 7 by a partition plate 3, the bottom of the water diversion cavity 7 is provided with a water diversion port N3 communicated with an inlet channel of a vacuum self-priming pump, the water diversion port N3 is arranged on a bottom cover 9 of the water diversion tank, the vacuum cavity 2 is provided with an air suction port N1 communicated with an inlet of the air suction pump, air in the vacuum cavity 2, the water diversion cavity 7 and the inlet channel of the vacuum self-priming pump is pumped out by the air suction pump through the air suction port N1 until the inlet channel of the vacuum self-priming pump and the water diversion cavity 7 are filled with water, and an isolation valve is arranged between the vacuum cavity 2; the method is characterized in that: the isolation valve adopts the orange peel valve structure, and this orange peel valve is including breathing board, floater 8, rubber skin 11, and the breathing board adopts and sets up a plurality of breather hole 4 at 3 intermediate positions of baffle and makes, and fixed mounting puts at plane central point under the breathing board in the middle of the rubber skin 11, both ends and floater 8 fixed connection, and the distribution position of breather hole 4 is that the floater 8 rises to the highest position contact surface between rubber skin 11 and the breathing board inboard. When the water level in the water diversion cavity 7 rises to push the floating ball 8 to float upwards, the rubber sheet 11 deforms in the transverse direction to gradually increase the contact area with the breathing plate, the breathing holes 4 on the breathing plate are gradually blocked by the rubber sheet 11 from the middle outwards, and when the floating ball 8 rises to the highest position, all the breathing holes 4 on the breathing plate are blocked by the rubber sheet 11 to prevent sewage from entering the vacuum cavity 2; when the vacuum self-priming pump stops working, the water level in the water diversion cavity 7 descends to enter air, the rubber sheet 11 extends downwards to deform under the action of the gravity of the floating ball 8, the contact surface with the breathing plate is gradually reduced, the breathing holes 4 are gradually opened from two sides to the middle, the vacuum cavity 2 is communicated with the water diversion cavity 7, the problem that the isolating valve in the prior art is sucked by the negative pressure of the vacuum cavity, the isolating valve needs to be opened through the manual operation compensating valve is avoided, the product structure is simplified, and the operation is simple. Moreover, through scientific design of the distribution positions of the breathing holes 4, the negative pressure suction force of the breathing holes 4 at the outer edge position of the rubber sheet 11 to the rubber sheet 11 is smaller than the downward pulling force of the floating ball 8 to the rubber sheet, so that the isolation valve is reliably opened, and the serious problem that the isolation valve cannot be flexibly and reliably opened and closed to damage self-priming vacuum pump equipment due to the fact that a connecting rod mechanism in the prior art is blocked after being accumulated by sewage media is solved. The vacuum chamber 2 communicates with the pressure detection port N2.

The rubber 11 is rectangular. The shape of the rubber sheet 11 can be set according to the distribution shape of the breathing holes 4 on the partition plate 3.

The floating ball 8 is connected with the rubber sheet 11 through a connecting rod and a fixing plate 5, the lower end of the connecting rod is fixedly connected with the floating ball 8, the upper end of the connecting rod is fixedly connected with the center of the lower end face of the fixing plate 5, and the upper end face of the fixing plate 5 is fixedly connected with the two ends of the rubber sheet 11. Two ends of the rubber sheet 11 are fixedly arranged in the upper plane of the fixing plate 5 by pressing strips and screws, and the middle of the rubber sheet is fixedly arranged in the lower plane of the breathing plate by pressing plates and screws.

The filter screen 6 is fixedly installed on the breathing plate outside the orange peel valve, the floating ball 8 is located on the lower end face of the filter screen 6, the upper end of the connecting rod movably penetrates into the inner side of the filter screen 6 to be connected with the fixing plate 5, the floating ball 8 is guaranteed to move flexibly, and the breathing hole 4 is prevented from being blocked by sewage substances. The filter screen 6 and the baffle 3 are fixedly arranged on the water guide box upper cover 1 by screws.

The lower end surface of the filter screen 6 is provided with a horn-shaped floating ball limiting guide cylinder.