Vacuum flushing equipment for gallery of storage tank

Abstract

The utility model relates to the technical field of water conservancy facilities, and discloses a storage tank gallery vacuum flushing device which comprises a base pre-buried at the top of a storage tank, a vacuum valve body is arranged at an opening in the top of the base in a matched mode, a mounting base is arranged in the vacuum valve body, and the mounting base divides the vacuum valve body into two cavities which are not communicated in the vertical direction; wherein the lower cavity is a vacuum chamber, the bottom of the vacuum chamber is provided with a vacuum pipe communicated with the interior of the storage pond, the bottom end of the vacuum pipe extends to the position close to the pond bottom of the storage pond, a vacuum diaphragm valve is installed on the installation base and located in the upper cavity of the vacuum valve body, and an air channel of the vacuum diaphragm valve is arranged in the vertical direction. And a vacuum pump is arranged on one side of the vacuum valve body, and the vacuum pump is communicated with an external air station and the vacuum chamber through an air pipe. The pond bottom cleaning device has the effect of reducing the pond bottom cleaning difficulty of the storage pond.

Description

Technical Field

[0001] This application relates to the technical field of water conservancy facilities, and in particular to a vacuum flushing device for a storage tank corridor. Background Art

[0002] A storage tank is a water treatment facility used for storing and regulating water volume, and is mainly applied in fields such as urban drainage systems, rainwater management, sewage treatment, and industrial wastewater treatment. It has characteristics such as water volume regulation, water quality improvement, flood control and disaster reduction, resource recovery, and improvement of the urban ecological environment. It plays an important role in the urban water cycle system, and provides effective support for urban sustainable development and water resource management by regulating water volume, improving water quality, and providing flood control functions.

[0003] In the prior art, after the rainwater in the storage tank is drained, sediments, debris, garbage, etc. will accumulate at the bottom of the storage tank. If the bottom of the tank is not cleaned in time, some of the sediments will rot or dry up, which will affect the hygiene inside the tank and increase the difficulty of cleaning the bottom of the storage tank in the later stage. Utility Model Content

[0004] In order to reduce the difficulty of cleaning the bottom of the storage tank, this application provides a vacuum flushing device for a storage tank corridor.

[0005] The vacuum flushing device for a storage tank corridor provided by this application adopts the following technical solutions:

[0006] A vacuum flushing device for a storage tank corridor includes a base embedded at the top of the storage tank. A vacuum valve body is cooperatively arranged at the open top of the base. An installation seat is arranged inside the vacuum valve body. The installation seat divides the vacuum valve body vertically into two non-communicating cavities. The cavity located below is the vacuum chamber. A vacuum tube communicating with the inside of the storage tank is opened at the bottom of the vacuum chamber, and the bottom end of the vacuum tube extends to a position close to the bottom of the storage tank. A vacuum diaphragm valve is installed on the installation seat. The vacuum diaphragm valve is located in the upper cavity of the vacuum valve body. Its air passage is arranged vertically and communicates the outside air outside the top of the vacuum valve body with the vacuum chamber. A vacuum pump is arranged on one side of the vacuum valve body, and the vacuum pump is connected to an external gas station and the vacuum chamber through an air pipe.

[0007] By adopting the above technical solution, when it is necessary to flush the storage tank, the vacuum pump is first started, and the storage tank is evacuated through the gas station. As the vacuum degree increases, the water and air in the storage tank are pumped out, and at the same time, the liquid level in the vacuum tube gradually rises. When the set vacuum degree is reached, the vacuum pump is closed and the vacuum diaphragm valve is opened. At this time, the outside air quickly enters the interior of the storage tank through the vacuum diaphragm valve, forming a strong stamping effect. At the same time, the water in the vacuum tube also quickly rushes into the storage tank, effectively flushing the corridor and the bottom of the tank. After the flushing is completed, the vacuum diaphragm valve is closed and the residual water in the vacuum tube is drained to complete the entire flushing process. The automatic flushing of the bottom of the storage tank is realized, greatly reducing the cleaning difficulty and workload of the sediment and debris at the bottom of the storage tank.

[0008] Optionally, a connecting flange is provided on the outer peripheral side wall of the contact portion between the vacuum valve body and the base. A plurality of connecting screw holes are reserved along the circumference on the connecting flange. The connecting flange is tightened against the base through the screw head portion of the bolt passing through the connecting screw holes.

[0009] By adopting the above technical solution, the setting of the connecting flange can increase the contact surface between the vacuum valve body and the base, thereby enhancing the connection stability between the vacuum valve body and the base.

[0010] Optionally, a sealing gasket made of silicone material is provided on the side wall of the connecting flange facing the base, and the sealing gasket is in contact with the top wall of the base.

[0011] By adopting the above technical solution, the setting of the sealing gasket enhances the sealing performance of the connection part between the connecting flange and the base, effectively improving the vacuum degree of the vacuum chamber during the operation of the vacuum stamping valve, and further improving the flushing effect of the equipment on the sediment and debris at the bottom of the storage tank.

[0012] Optionally, reinforcing ribs are provided at the connection between the connecting flange and the vacuum valve body, and a plurality of the reinforcing ribs are distributed along the outer circumference of the vacuum valve body.

[0013] By adopting the above technical solution, the setting of the reinforcing ribs enhances the structural strength between the connecting flange and the vacuum valve body, improving the load-bearing capacity and service life of the entire device.

[0014] Optionally, a pressure transmitter and a radar level gauge are provided on the inner top wall of the vacuum chamber, and the radar level gauge is located directly above the vacuum tube.

[0015] By adopting the above technical solution, the pressure transmitter is used to detect the pressure change in the vacuum tube during evacuation. When the pressure transmitter detects that the vacuum degree in the vacuum tube reaches the set value, it transmits an electrical signal to the external controller, thereby driving the vacuum pump to close and opening the vacuum diaphragm valve for flushing operation; the radar level gauge is used to detect the water level height in the vacuum tube in real time to prevent the water in the vacuum tube from being pumped out by the vacuum pump, thereby reducing the possibility of damage to the vacuum pump.

[0016] Optionally, a silencing cap is provided over the open top of the vacuum valve body by bolts.

[0017] By adopting the above technical solution, the silencing cap can effectively reduce the noise generated when the outside air rushes into the vacuum chamber rapidly when the vacuum diaphragm valve is opened, thereby reducing noise pollution.

[0018] Optionally, the silencing cap includes a base cylinder installed at the open top of the top wall of the vacuum valve body and an outer cylinder detachably installed coaxially on the base cylinder. A ventilation opening is provided at a position near the top on the side wall of the outer cylinder, and a plurality of sound-absorbing holes are provided on the side wall of the whole body of the base cylinder communicating with the inner cavity.

[0019] By adopting the above technical solution, the setting of a plurality of sound-absorbing holes can effectively absorb and attenuate sound waves, thereby reducing the propagation of noise; at the same time, the silencing cap is composed of a detachably arranged base cylinder and an outer cylinder, which not only improves the convenience of maintaining the silencing cap, but also reduces the possibility of outdoor dust entering the inside of the silencing cap.

[0020] Optionally, a spiral sound-absorbing sheet is circumferentially arranged on the outer side wall of the base cylinder facing the outer cylinder. A thread groove is provided on the inner side wall of the outer cylinder corresponding to the spiral sound-absorbing sheet. A part of the spiral sound-absorbing sheet is inserted into the thread groove, and the spiral sound-absorbing sheet is rotationally matched with the thread groove. The spiral sound-absorbing sheet divides the cavity between the base cylinder and the outer cylinder into a spiral diversion channel.

[0021] By adopting the above technical solution, the spiral sound-absorbing sheet on the outer wall of the base cylinder is rotationally matched with the thread groove on the inner wall of the outer cylinder, which can achieve the effect of detachable installation. At the same time, the spiral sound-absorbing sheet makes the cavity between the base cylinder and the outer cylinder form a spiral diversion channel, providing a diversion path for the flow of air, and increasing the contact area between the air and the sound-absorbing sheet, further reducing the noise generated when the air flows through.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. When it is necessary to flush the storage tank, first start the vacuum pump and perform a vacuum pumping operation on the storage tank through the gas station. As the vacuum degree increases, the water and air in the storage tank are pumped out, and at the same time, the liquid level in the vacuum tube gradually rises. When the set vacuum degree is reached, turn off the vacuum pump and open the vacuum diaphragm valve. At this time, the outside air quickly enters the inside of the storage tank through the vacuum diaphragm valve, forming a strong stamping effect. At the same time, the water in the vacuum tube also quickly rushes into the storage tank, effectively flushing the corridor and the bottom of the tank. After the flushing is completed, close the vacuum diaphragm valve and drain the residual water in the vacuum tube to complete the entire flushing process. The automatic flushing of the bottom of the storage tank is realized, greatly reducing the cleaning difficulty and workload of the sediment and debris at the bottom of the storage tank;

[0024] 2. The setting of the connecting flange can increase the contact surface between the vacuum valve body and the base, thereby enhancing the connection stability between the vacuum valve body and the base;

[0025] 3. The setting of the sealing gasket enhances the sealing performance of the connection part between the connecting flange and the base, effectively improving the vacuum degree of the vacuum chamber during the operation of the vacuum stamping valve, and further improving the flushing effect of the equipment on the sediment and debris at the bottom of the storage tank. Description of the Drawings

[0026] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present application.

[0027] Figure 2 is the structural sectional view of Embodiment 1 of the present application during actual application.

[0028] Figure 3 is the sectional view showing the positional relationship between the pressure transmitter and the radar level gauge in Embodiment 1 of the present application.

[0029] Figure 4 is the overall structural schematic diagram of Embodiment 2 of the present application.

[0030] Figure 5 is the sectional view showing the connection relationship between the base cylinder and the outer cylinder in Embodiment 2 of the present application.

[0031] Description of the Reference Numerals

[0032] 01, base; 1, vacuum valve body; 11, connecting flange; 111, sealing gasket; 12, reinforcing rib; 2, mounting seat; 3, vacuum chamber; 31, vacuum tube; 4, level gauge bracket; 41, radar level gauge; 5, vacuum diaphragm valve; 6, vacuum pump; 7, pressure transmitter; 8, silencing cap; 81, base cylinder; 811, sound-absorbing hole; 812, spiral sound-absorbing sheet; 82, outer cylinder; 821, ventilation port; 822, thread groove; 9, diversion channel. Detailed Description of the Embodiments

[0033] The following is combined with Figures 1-5 This application is described in further detail.

[0034] The embodiment of the present application discloses a vacuum flushing device for a gallery of a regulating reservoir.

[0035] Example 1

[0036] Reference Figures 1 to 3 A vacuum flushing device for a regulating reservoir gallery includes a base 01, which is pre-buried and arranged at the top of the regulating reservoir. The top of the base 01 is bolted and connected to a vacuum valve body 1 with a hollow interior. A mounting seat 2 is fixedly arranged inside the vacuum valve body 1. The mounting seat 2 vertically divides the interior of the vacuum valve body 1 into two unconnected cavities, wherein the lower cavity is a vacuum chamber 3. The bottom of the vacuum chamber 3 is connected to a vacuum tube 31 connected to the regulating reservoir through a flange. The bottom end of the vacuum tube 31 extends to a position close to the bottom of the regulating reservoir, and a liquid level gauge bracket 4 is fixedly arranged on the inner top wall of the vacuum chamber 3. A radar liquid level gauge 41 is installed on the liquid level gauge bracket 4. The radar liquid level gauge 41 is located directly above the vacuum tube 31. A vacuum diaphragm valve 5 is installed on the mounting seat 2. This valve is located in the upper cavity of the vacuum valve body 1. Its air passage is arranged vertically to connect the outside air outside the top of the vacuum valve body 1 with the vacuum chamber 3. In addition, a vacuum pump 6 is installed on one side of the vacuum valve body 1, and the pump is connected to the external gas station and the vacuum chamber 3 through an air pipe. A pressure transmitter 7 electrically connected to the external gas station is also installed in the vacuum chamber 3.

[0037] Reference Figures 1 to 3 After starting the vacuum pump 6, the vacuum chamber 3 is evacuated through the gas station. As the vacuum degree of the vacuum chamber 3 gradually increases, the liquid level in the vacuum tube 31 will gradually rise. When the pressure transmitter 7 detects that the vacuum chamber 3 has reached a predetermined vacuum degree, it transmits an electrical signal to the gas station. The gas station drives the vacuum pump 6 to close and opens the vacuum diaphragm valve 5. At this time, the outside air will quickly rush into the vacuum chamber 3 through the vacuum diaphragm valve 5, forming a strong stamping effect. Under this stamping effect, the water in the vacuum tube 31 will quickly flow into the regulating and storing tank, and the strong water flow will efficiently flush the corridor and the bottom of the regulating and storing tank. After the flushing operation is completed, the vacuum diaphragm valve 5 is closed, and the residual water in the vacuum tube 31 is emptied, thereby ending the entire flushing process.

[0038] Reference Figure 1 and Figure 2 A connecting flange 11 is integrally formed on the outer peripheral side wall of the abutment portion of the vacuum valve body 1 and the base 01 , and a plurality of reinforcing ribs 12 are fixedly arranged at the bending portion between the connecting flange 11 and the vacuum valve body 1 , and the reinforcing ribs 12 are distributed along the outer periphery of the vacuum valve body 1 .

[0039] Reference Figure 2, the upper edge of the connecting flange 11 is circumferentially tightened and installed on the base 01 through a number of bolts, and a sealing gasket 111 made of silicone material is fixedly arranged on the side wall of the vacuum valve body 1 facing the base 01 where the connecting flange 11 is located. When the connecting flange 11 is installed and abutted against the base 01 through bolts, the sealing gasket 111 is in contact with the top wall of the base 01.

[0040] Refer to Figure 1 , in order to reduce the noise generated during the stamping process, a silencing cap 8 is covered on the open top of the vacuum valve body 1 through bolts.

[0041] The implementation principle of the vacuum flushing equipment for the storage pool corridor in the embodiment of the present application is as follows: when it is necessary to flush the storage pool, first start the vacuum pump 6, and perform a vacuum pumping operation on the storage pool through the upper cavity of the vacuum valve body 1. As the vacuum degree increases, the water and air in the storage pool are pumped out, and at the same time, the liquid level in the vacuum tube 31 gradually rises. When the set vacuum degree is reached, turn off the vacuum pump 6 and open the vacuum diaphragm valve 5. At this time, the outside air quickly enters the interior of the storage pool through the silencing cap 8 and the vacuum diaphragm valve 5, forming a strong stamping effect. At the same time, the water in the vacuum tube 31 also quickly rushes into the storage pool, effectively flushing the corridor and the bottom of the pool. After the flushing is completed, close the vacuum diaphragm valve 5 and drain the residual water in the vacuum tube 31 to complete the entire flushing process.

[0042] Embodiment 2

[0043] Refer to Figure 4 and Figure 5 , the difference between this embodiment and Embodiment 1 is that the structure of the silencing cap 8 is different, and the structure of the silencing cap 8 is further refined. The silencing cap 8 includes a base cylinder 81 and an outer cylinder 82.

[0044] Refer to Figure 5 , where the base cylinder 81 is installed at the open top of the top wall of the vacuum valve body 1 through bolts, and a number of sound absorption holes 811 communicating with the inner cavity are circumferentially distributed on the side wall of the base cylinder 81. A spiral sound absorption sheet 812 is fixedly arranged on the outer side wall of the base cylinder 81 facing the outer cylinder 82 along the circumference.

[0045] Refer to Figure 5 , a ventilation port 821 communicating with the inside and outside is opened at a position near the top of the side wall of the outer cylinder 82, and a thread groove 822 is provided on the inner side wall of the outer cylinder 82 corresponding to the spiral sound absorption sheet 812. A part of the spiral sound absorption sheet 812 is inserted into the thread groove 822, and the spiral sound absorption sheet 812 is rotatably matched with the thread groove 822. The spiral sound absorption sheet 812 divides the cavity between the base cylinder 81 and the outer cylinder 82 into a spiral diversion channel 9.

[0046] The implementation principle of Embodiment 2 is that the spiral sound-absorbing sheet 812 on the outer wall of the base cylinder 81 is rotationally engaged with the thread groove 822 on the inner wall of the outer cylinder 82, which can achieve the effect of quick disassembly and installation. At the same time, the spiral sound-absorbing sheet 812 makes the cavity between the base cylinder 81 and the outer cylinder 82 form a spiral diversion channel 9, providing a diversion path for the flow of air, and increasing the contact area between the air and the sound-absorbing sheet. Under the condition of ventilation and noise reduction of the sound-absorbing holes 811, the noise generated when the air flow passes through is further reduced.

[0047] The above are all the preferred embodiments of this application. The protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A vacuum flushing device for a storage tank gallery, comprising a base (01) pre-buried on the top of the storage tank, characterized in that: A vacuum valve body (1) is arranged at the top opening of the base (01), and a mounting seat (2) is arranged inside the vacuum valve body (1). The mounting seat (2) vertically separates the vacuum valve body (1) into two non-communicating cavities, wherein the cavity located at the bottom is a vacuum chamber (3). A vacuum tube (31) is arranged at the bottom of the vacuum chamber (3) and is connected to the inside of the regulating reservoir, and the bottom end of the vacuum tube (31) extends to a position close to the bottom of the regulating reservoir. A vacuum diaphragm valve (5) is installed on the mounting seat (2). The vacuum diaphragm valve (5) is located in the upper cavity of the vacuum valve body (1), and its air passage is arranged vertically and connects the outside air outside the top of the vacuum valve body (1) with the vacuum chamber (3). A vacuum pump (6) is arranged on one side of the vacuum valve body (1), and the vacuum pump (6) is connected to an external air station and the vacuum chamber (3) through an air pipe.

2. A storage tank gallery vacuum flushing device according to claim 1, characterized in that: A connecting flange (11) is provided on the outer peripheral side wall of the abutment portion of the vacuum valve body (1) and the base (01), and a plurality of connecting screw holes are reserved on the connecting flange (11) along the circumferential direction. Bolts are passed through the connecting screw holes, and the connecting flange (11) is pressed against the base (01) through the screw head of the bolt.

3. The vacuum flushing equipment for the gallery of a regulating reservoir according to claim 2 is characterized in that: A sealing pad (111) made of silicone material is arranged on the side wall of the connecting flange (11) facing the base (01), and the sealing pad (111) is arranged to abut against the top wall of the base (01).

4. The vacuum flushing equipment for the gallery of a regulating reservoir according to claim 3 is characterized in that: A reinforcing rib (12) is provided at the connection between the connecting flange (11) and the vacuum valve body (1), and a plurality of the reinforcing ribs (12) are distributed along the periphery of the vacuum valve body (1).

5. The vacuum flushing equipment for the gallery of a regulating reservoir according to claim 1 is characterized in that: A pressure transmitter (7) and a radar level gauge (41) are arranged in the vacuum chamber (3), and the radar level gauge (41) is located directly above the vacuum tube (31).

6. The vacuum flushing equipment for the gallery of a regulating reservoir according to claim 1 is characterized in that: A silencer cap (8) is provided at the top opening of the vacuum valve body (1) via a bolt cover.

7. The vacuum flushing equipment for the gallery of a regulating reservoir according to claim 6 is characterized in that: The silencer cap (8) comprises a base tube (81) mounted at the open top wall of the vacuum valve body (1) and an outer tube (82) coaxially and detachably mounted on the base tube (81), and a vent (821) is provided on the side wall of the outer tube (82) near the top, and a plurality of silencer holes (811) are provided on the side wall of the base tube (81) that are connected to the inner cavity.

8. The vacuum flushing equipment for the gallery of a regulating reservoir according to claim 7 is characterized in that: A spiral silencer (812) is circumferentially arranged on the outer wall of the base tube (81) facing the outer tube (82); a thread groove (822) is provided on the inner wall of the outer tube (82) corresponding to the spiral silencer (812); a portion of the spiral silencer (812) is inserted into the thread groove (822); and the spiral silencer (812) and the thread groove (822) are rotationally matched; the spiral silencer (812) separates the cavity between the base tube (81) and the outer tube (82) into a spiral guide channel (9).

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