Multi-position five-way switching ball valve

Abstract

The utility model provides a multi-position five-way switching ball valve which comprises a valve body (7), a valve cavity (9) and a movable valve element (6). The valve cavity (9) is formed in the valve body (7), the valve body (7) is of a regular cube structure or a long cube structure or a spherical structure, and the valve cavity (9) is a spherical cavity formed in the valve body (7); five side surfaces outside the valve body (7) are respectively provided with a cleaning pump water inlet (1), a cleaning water outlet (2), a cleaning circulating water port (3), a cleaning drain outlet (4) and a cleaning water return port (5) which are communicated with the valve cavity; the movable valve element (6) is arranged in the valve cavity (9), and a driving mechanism (8) of the movable valve element (6) is arranged on the sixth side face outside the valve body (7). And stations are switched by controlling the movable valve core (6) to rotate. The multi-position five-way switching ball valve has the advantages that the switching requirement of multiple cleaning functions of a cleaning system can be met, and the space size is reduced.

Description

Technical Field

[0001] The utility model relates to a valve for a cleaning system, in particular to a multi-position five-way switching ball valve. Background Art

[0002] In the cleaning system industry, the water control of the cleaning system is often designed to be relatively complex due to the requirements of multiple cleaning modes.

[0003] For example, the electromagnetic pulse cleaning machine is a heat exchanger cleaning system. Its principle is to use the cavitation phenomenon generated by compressed air and water to impact and oscillate the heat exchange surface to remove attachments. Adding cleaning agents to hard scale can accelerate the dissolution and cleaning. This cleaning technology solves most of the problems of large plate heat exchangers in power plants and plate heat exchangers in pressure isolation stations for urban heating, greatly improving the cleaning efficiency of plate heat exchangers and the convenience of cleaning plate heat exchangers.

[0004] Since the cleaning system needs to perform forward washing, backwashing, circulation, and sewage discharge during the cleaning process, the pulse cleaning fluid needs to be switched multiple times. Existing cleaning machines use three-way and four-way valves in series, which are large and cannot meet the cleaning needs of small spaces. The flow path and switching method of the five-way ball valve on the market cannot meet the full range of functional switching during the cleaning process. It is necessary to add pipelines and valves to complete the work. This makes the pipelines of the entire system complicated, the size of the cleaning machine is bulky, the control cost and production cost are higher, and the operation and maintenance are difficult.

[0005] Based on this situation, it is necessary to design a dedicated five-way valve to meet the functional requirements of the cleaning industry for switching between multiple cleaning modes to reduce space occupancy.

[0006] In order to solve the above problems, people have been seeking an ideal technical solution. Utility Model Content

[0007] The purpose of the utility model is to address the deficiencies of the existing technology and thus provide a multi-position five-way switching ball valve that can meet the switching requirements of multiple cleaning functions of a cleaning system and reduce the space volume.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a multi-position five-way switching ball valve, comprising a valve body, a valve cavity and a movable valve core;

[0009] The valve cavity is formed in the valve body, the valve body is in the shape of a regular cube, a long cube or a spherical structure, and the valve cavity is a spherical chamber formed in the valve body;

[0010] The five sides of the valve body are respectively provided with a cleaning pump water inlet, a cleaning water outlet, a cleaning circulating water outlet, a cleaning sewage outlet and a cleaning return water outlet connected to the valve cavity;

[0011] The movable valve core is arranged in the valve cavity, and the driving mechanism of the movable valve core is arranged on the sixth side surface outside the valve body;

[0012] By controlling the rotation of the movable valve core, the following cleaning passages are formed:

[0013] Positive wash cycle: the cleaning circulation water inlet is connected to the cleaning return water inlet, the cleaning pump water inlet is connected to the cleaning water outlet, and the cleaning sewage outlet is closed;

[0014] Positive wash sewage discharge: the cleaning sewage outlet is connected with the cleaning return water outlet, the cleaning water outlet is connected with the cleaning pump water inlet, and the cleaning circulating water outlet is closed;

[0015] Backwash cycle: the cleaning water outlet is connected to the cleaning circulation water outlet, the cleaning pump water inlet is connected to the cleaning return water outlet, and the cleaning sewage outlet is closed;

[0016] Backwash drainage: The cleaning water outlet is connected to the cleaning sewage outlet, the cleaning pump water inlet is connected to the cleaning return water outlet, and the cleaning circulating water outlet is closed.

[0017] Based on the above, the cleaning water outlet, cleaning circulating water outlet, cleaning sewage outlet and cleaning return water outlet are located in the same plane, and the cleaning pump water inlet is perpendicular to the plane where the other valve ports are located.

[0018] Based on the above, the cleaning water outlet and the cleaning return water outlet are located on opposite sides, and the cleaning circulating water outlet and the cleaning sewage outlet are located on opposite sides.

[0019] Based on the above, the movable valve core includes a channel provided at the axis and connected to the water inlet of the cleaning pump, a spherical center water inlet is provided at the outlet end of the channel, and a spherical center water outlet connected to the spherical center water inlet is provided on the movable valve core;

[0020] The other side of the movable valve core is provided with a plurality of spherical center switching ports in sequence along the rotating arc, each spherical center switching port is used for sealing and docking with each valve port, and each spherical center switching port is internally conductive;

[0021] Each ball center switching port is isolated from the ball center water outlet.

[0022] Based on the above, in the cross section of the movable valve core, the opening degree of the spherical center water outlet side is less than 180°, and the opening degree of the multiple spherical center switching ports side is greater than 180°.

[0023] Based on the above, the valve body and the movable valve core are made of cast iron or stainless steel.

[0024] The present invention has substantial features and progress compared to the existing technology. Specifically, the present invention is designed with special flow channels for equipment in the cleaning industry, so that it can realize multi-channel and multi-position switching control, meet the switching of forward washing, backwashing, circulation, sewage discharge and other functions of the cleaning system, greatly improve the integration, and compared with the traditional solution of combining three-way valves with four-way valves, it has more functions, smaller size and higher control efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of a multi-position five-way switching ball valve in the utility model.

[0026] Figure 2 This is a schematic diagram of the positive wash cycle of the multi-position five-way switching ball valve in the utility model.

[0027] Figure 3 This is a schematic diagram of the positive flushing and sewage discharge of a multi-position five-way switching ball valve in the utility model.

[0028] Figure 4 It is a principle diagram of the backwash cycle of the multi-position five-way switching ball valve in the utility model.

[0029] Figure 5 This is a principle diagram of backwashing and sewage discharge of a multi-position five-way switching ball valve in the utility model.

[0030] In the figure: 1. Cleaning pump water inlet; 2. Cleaning water outlet; 3. Cleaning circulation port; 4. Cleaning sewage outlet; 5. Cleaning return water port; 6. Movable valve core; 7. Valve body; 8. Drive mechanism; 9. Valve chamber. DETAILED DESCRIPTION

[0031] The technical solution of the present utility model is further described in detail below through specific implementation methods.

[0032] like Figure 1-Figure 5 As shown, a multi-position five-way switching ball valve includes a valve body 7, a valve cavity 9 and a movable valve core 6.

[0033] The valve cavity 9 is formed in the valve body 7, and the valve body 7 is a regular cube, a long cube structure or a spherical structure. The valve cavity 9 is a spherical chamber formed in the valve body 7, and the movable valve core 6 is a spherical valve core. Specifically, in this embodiment, the valve body 7 and the movable valve core 6 are both made of stainless steel. In other embodiments, cast iron can also be used.

[0034] Five side surfaces outside the valve body 7 are respectively provided with a cleaning pump water inlet 1, a cleaning water outlet 2, a cleaning circulating water outlet 3, a cleaning sewage outlet 4 and a cleaning return water outlet 5 connected to the valve cavity. In this embodiment, the cleaning water outlet 2, the cleaning circulating water outlet 3, the cleaning sewage outlet 4 and the cleaning return water outlet 5 are located in the same plane, the cleaning pump water inlet 1 is perpendicular to the plane where the other valve outlets are located, the cleaning water outlet 2 and the cleaning return water outlet 5 are located on opposite sides, and the cleaning circulating water outlet 3 and the cleaning sewage outlet 4 are located on opposite sides.

[0035] The movable valve core 6 is arranged in the valve cavity 9, and the driving mechanism 8 of the movable valve core 6 is arranged on the sixth side surface outside the valve body 7. Specifically, the movable valve core 6 includes a channel provided at the axis and connected to the water inlet 1 of the cleaning pump, a spherical water inlet A is provided at the outlet end of the channel, and a spherical water outlet B connected to the spherical water inlet A is provided on the movable valve core 6; a plurality of spherical switching ports are sequentially provided on the other side of the movable valve core 6 along the rotation arc. In this embodiment, C, D, E and F are used to represent four spherical switching ports, each of which is used to seal and connect with each valve port, and each spherical switching port is internally conductive;

[0036] In the cross section of the movable valve core 6 , the opening degree of the spherical center water outlet side is less than 180°, and the opening degree of the multiple spherical center switching ports side is greater than 180°.

[0037] Each ball center switching port is isolated from the ball center water outlet.

[0038] Take the electromagnetic pulse cleaning machine as an example:

[0039] During specific use, the cleaning pump water inlet 1 is connected to the cleaning machine water pump outlet, the cleaning water outlet 2 is connected to the positive wash water inlet of the system to be cleaned, the cleaning circulating water inlet 3 is connected to the gas-liquid separator of the cleaning buffer tank on the cleaning machine, the cleaning sewage outlet 4 is connected to the designated sewage discharge point at the cleaning site, the cleaning return water outlet 5 is connected to the positive wash return water outlet of the system to be cleaned, and the driving mechanism 8 uses a pneumatic / electric controller to connect the power supply (electric) or solenoid valve (pneumatic) and compressed air (pneumatic).

[0040] By controlling the rotation of the movable valve core 6, the following cleaning passages are formed:

[0041] After the multi-position five-way switching ball valve and the cleaning system are powered on, the cleaning ball valve returns to the default initial state. Figure 2As shown, the ball core water inlet A of the movable valve core 6 corresponds to the cleaning pump water inlet 1 of the valve body 7, the ball core water outlet B corresponds to the cleaning water outlet 2 of the valve body 7, the ball core switching port C corresponds to the cleaning circulation water port 3, and the ball core switching port E corresponds to the cleaning return water port 5. The cleaning water enters from the cleaning pump water inlet 1 and enters the system to be cleaned from the cleaning water outlet 2. The circulating return water returns from the cleaning return water port 5 and circulates back to the gas-liquid separator of the cleaning tank from the cleaning circulation water port 3, forming a chemical cleaning positive washing cycle state.

[0042] When backwashing is required, the movable valve core 6 rotates 135° clockwise (relative to the default initial state) to achieve the following Figure 4 Backwash circulation state; the ball core water inlet A of the movable valve core 6 corresponds to the cleaning pump water inlet 1 of the valve body 7, the ball core water outlet B corresponds to the cleaning return water port 5 of the valve body 7, the ball core switching port F corresponds to the cleaning circulation water port 3, and the ball core switching port D corresponds to the cleaning water outlet 2. The cleaning water enters from the cleaning pump water inlet 1 and enters the system to be cleaned from the cleaning return water port 5. The circulating return water returns from the cleaning water outlet 2 and circulates back to the gas-liquid separator of the cleaning tank from the cleaning circulation water port 3, forming a chemical cleaning backwash circulation state.

[0043] When positive flushing and drainage are required, the movable valve core 6 rotates 45° counterclockwise (relative to the default initial state) to achieve the following Figure 3 The ball core water inlet A of the movable valve core 6 corresponds to the cleaning pump water inlet 1 of the valve body 7, the ball core water outlet B corresponds to the cleaning water outlet 2 of the valve body 7, the ball core switching port F corresponds to the cleaning sewage outlet 4, and the ball core switching port D corresponds to the cleaning return water port 5. The cleaning water enters from the cleaning pump water inlet 1 and enters the system to be cleaned from the cleaning water outlet 2. The circulating return water returns from the cleaning return water port 5 and is discharged from the cleaning sewage outlet 4 to the designated location on site, forming a chemical cleaning positive washing and sewage discharge state.

[0044] When backwashing is required, the movable valve core 6 rotates 180° counterclockwise (relative to the default initial state) to achieve the following Figure 5 Backwash and sewage discharge state; the ball core water inlet A of the movable valve core 6 corresponds to the cleaning pump water inlet 1 of the valve body 7, the ball core water outlet B corresponds to the cleaning return water port 5 of the valve body 7, the ball core switching port C corresponds to the cleaning sewage outlet 4, and the ball core switching port E corresponds to the cleaning water outlet 2. The cleaning water enters from the cleaning pump water inlet 1, enters the system to be cleaned from the cleaning return water port 5, and the circulating return water returns from the cleaning water outlet 2, and is discharged from the cleaning sewage outlet 4 to the designated location on site, forming a chemical cleaning backwash and sewage discharge state.

[0045] Of course, the five-way valve is not limited to electromagnetic pulse cleaning machines. It can be used in various cleaning systems in the cleaning industry that require multi-mode switching to achieve smooth switching of multiple functional modes without taking up too much space.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and not to limit it; although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solution of the utility model, they should all be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A multi-position five-way switching ball valve, characterized by: It comprises a valve body (7), a valve chamber (9) and a movable valve core (6); The valve cavity (9) is formed in the valve body (7), the valve body (7) is in the shape of a regular cube, a long cube or a spherical structure, and the valve cavity (9) is a spherical chamber formed in the valve body (7); Five side surfaces of the valve body (7) are respectively provided with a cleaning pump water inlet (1), a cleaning water outlet (2), a cleaning circulating water outlet (3), a cleaning sewage outlet (4), and a cleaning water return outlet (5) connected to the valve cavity; The movable valve core (6) is arranged in the valve cavity (9), and the driving mechanism (8) of the movable valve core (6) is arranged on the sixth side surface outside the valve body (7); By controlling the rotation of the movable valve core (6), the following cleaning passage is formed: Forward washing cycle: the washing circulation water inlet (3) is connected to the washing return water inlet (5), the washing pump water inlet (1) is connected to the washing water outlet (2), and the washing sewage outlet (4) is closed; Positive washing sewage discharge: the washing sewage outlet (4) is connected to the washing return water outlet (5), the washing water outlet (2) is connected to the washing pump water inlet (1), and the washing circulating water outlet (3) is closed; Backwash cycle: the cleaning water outlet (2) is connected to the cleaning circulation water outlet (3), the cleaning pump water inlet (1) is connected to the cleaning return water outlet (5), and the cleaning sewage outlet (4) is closed; Backwash drainage: the cleaning water outlet (2) is connected to the cleaning drainage outlet (4), the cleaning pump water inlet (1) is connected to the cleaning return water outlet (5), and the cleaning circulation water outlet (3) is closed.

2. The multi-position five-way switching ball valve according to claim 1, characterized in that: The cleaning water outlet (2), the cleaning circulating water outlet (3), the cleaning sewage outlet (4) and the cleaning return water outlet (5) are located in the same plane, and the cleaning pump water inlet (1) is perpendicular to the plane where the other valve ports are located.

3. The multi-position five-way switching ball valve according to claim 2, characterized in that: The cleaning water outlet (2) and the cleaning return water outlet (5) are located on opposite sides, and the cleaning circulating water outlet (3) and the cleaning sewage outlet (4) are located on opposite sides.

4. The multi-position five-way switching ball valve according to claim 3, characterized in that: The movable valve core (6) includes a channel provided at the axis and connected to the water inlet (1) of the cleaning pump, a spherical center water inlet is provided at the outlet end of the channel, and a spherical center water outlet connected to the spherical center water inlet is provided on the movable valve core (6); The other side of the movable valve core (6) is provided with a plurality of spherical center switching ports in sequence along the rotating arc, each spherical center switching port is used for sealingly docking with each valve port, and each spherical center switching port is internally conductive; Each ball center switching port is isolated from the ball center water outlet.

5. The multi-position five-way switching ball valve according to claim 4, characterized in that: In the cross section of the movable valve core (6), the opening degree of the spherical center water outlet side is less than 180°, and the opening degree of the multiple spherical center switching ports side is greater than 180°.

6. The multi-position five-way switching ball valve according to claim 5, characterized in that: The valve body and the movable valve core are both made of cast iron or stainless steel.

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