CN205073786U - 8-inch centrifugal sand removing net type full-automatic flushing filter with torpedo - Google Patents

Abstract

The utility model discloses a 8 cun centrifugation adds full-automatic filter that washes of torpedo degritting net formula, including grit separator, jar body and have the additional pipe of perpendicular nozzle stub, its characterized in that: the sand-stone separator is provided with a water inlet and a water feeding port, the water feeding port of the sand-stone separator is connected to a water inlet pipe of a tank body through a connecting valve, the combination form of the sand-stone separator and the tank body is realized, the tank body is provided with a water inlet pipe, a water outlet pipe and a ring seat, the sand-stone separator further comprises a filter screen with a torpedo net core and a cover seat, the filter screen with the built-in torpedo net core is arranged between the cover seat and the seat ring and is accommodated in the tank body, the pollution discharge and the flushing of the filter screen which are carried by a pipe are all completed by an automatic control system, the control system has multiple functions, short time and uninterrupted water supply, the control mode is diversified, the automation degree is high, a specially-assigned person is not needed to take care of the sand-stone separator.

Description

8-inch centrifugal plus torpedo desanding net type automatic flushing filter

technical field

The utility model belongs to industrial and agricultural water-saving filter devices, in particular to an 8-inch centrifugal plus torpedo desanding net type full-automatic flushing filter.

Background technique

At present, the water quality requirements for industrial water treatment, agricultural water-saving irrigation, and domestic water that are being gradually promoted are relatively high. It is necessary to filter out impurities and sediment in the water through filters in advance to prevent the drip irrigation belt from clogging and meeting domestic water standards. The traditionally used filters are manual cleaning screen filters and automatic cleaning screen cleaning filters, which are used singly or in parallel. Single-body manual cleaning screen filter If the filter screen is blocked and the water flow is not smooth, stop the water supply and perform manual cleaning, which will affect the normal operation. When the manual screen filters used in parallel need to be cleaned during the working process, one screen filter can be stopped for cleaning first, and the other screen filters are working, and they are manually cleaned in turn; it will reduce the flow rate and work efficiency , time-consuming. Although the automatic cleaning screen filter can realize automatic cleaning of the filter screen, because it is composed of several single screen filters in parallel, it has many components, large volume, changeable water media, and large head loss. The power of the power equipment is high, the operating cost is high, the consumables are uneconomical, and the backwash needs filtered clean water, which increases the water demand for flushing and the additional energy for processing. As a result, a series of problems such as unsatisfactory application, poor reflection of the superiority of water-saving irrigation technology, and slow promotion and popularization have been caused.

Contents of the invention

The purpose of this utility model is achieved in this way: an 8-inch centrifugal plus torpedo desanding net type automatic flushing filter, including a sand separator and a tank, is characterized in that: the sand separator is equipped with an inlet The water outlet, the water delivery port, and the water delivery port of the sand separator are connected to the water inlet pipe of the tank through a connecting valve. After that, the outlet pipe on the lower side of the tank is connected to the vertical short pipe of the additional pipe, realizing the connection between the sand separator and the tank. The combination form, the tank body has water inlet pipe, water outlet pipe, ring seat, and also includes filter screen and cover seat with torpedo mesh core, and the front and rear ends of the tank body are equipped with seat ring and drain valve respectively. The filter screen with the torpedo mesh core is installed between the cover bases, and the drain valve on the cover base can be connected to the automatic control system including the electromagnetic head through the water control pipe to realize the automatic cleaning function.

The sand separator is equipped with a water inlet and a water delivery port. The water inlet is in the middle of the sand separator, and the water delivery port is at the tail of the connecting pipe. The water delivery port is connected to the tank body inlet pipe with a built-in filter through a connecting valve. The outlet pipe on the lower side is connected with the vertical short pipe of the additional pipe to form a series integral form between the sand separator and the tank body.

The sand separator is provided with a water inlet and a water delivery port, the water delivery port is at the tail of the connecting pipe, and the water inlet is at the entry point on the right side of the middle part of the sand separator.

The tank body also includes a filter screen with a torpedo mesh core and a cover seat. Seat rings and a cover seat with a drain valve are respectively installed at the front and rear ends of the tank body, and a filter screen with a torpedo mesh core is installed between them. network.

The filter screen has an outer diameter of 200mm and a length of 1040mm. A PVC torpedo core with a diameter of 155mm, a length of 1040mm and a wall thickness of 7mm is placed in the filter screen. The torpedo core is 155mm in diameter and 1040mm long.

The blowdown valve carried on the cover seat can be connected to the automatic control system including the electromagnetic head through the water control pipe to realize the automatic blowdown control system.

The utility model realizes the automatic cleaning function, the self-cleaning time is short, only needs 20-40 seconds, the water supply is uninterrupted, and the normal work of the field system is not affected, the self-cleaning control mode of the controller can be diversified, and the pressure difference can be used , time and mixed mode cleaning, and has the memory function of cleaning times in various modes. It has a high degree of automation, does not need to be equipped with a special person to take care of it, does not need manual operation, low labor intensity, high efficiency, less cleaning water consumption, and changes in over-current boundary conditions. Less head loss and energy saving.

In terms of structure, the utility model reforms the parallel backwashing method of the traditional filter into a single direct flushing method, which saves materials. At the same time, the controller adopts a direct current mode, that is, only 4 ordinary batteries of 1.5 volts are needed in the controller. One irrigation period can be used to reduce the annual operation and management fee, thus creating conditions for the continuous management irrigation system without electricity and self-pressure and the centralized management of the first filter station.

The working principle of the utility model is: the rough sand water to be treated flows into the sand-stone separator tangentially from the water inlet to generate a swirling flow, and the particles in the water are close to the inner wall of the sand-stone separator under the action of the centrifugal force generated by the swirling flow. Gravity sinks into the grit settling tank, and the water after the first stage of filtration rises through the center of the sand separator and flows into the water inlet pipe of the tank along the connecting pipe. When it enters the filter cavity between the net and the torpedo mesh core, and enters from the inner wall of the filter and flows out from the outer wall, the impurities are attached to the inner wall of the filter, and the clean water flows out from the outer wall of the filter; the dirt attached to the inner wall of the filter When there are many objects, there will be a certain pressure difference between the inner and outer cavity of the filter screen. When the pressure difference reaches the preset value, the pressure difference sensor of the automatic control system will transmit the information to the controller. The valve is opened, at this time, part of the water on the outer wall of the filter enters the inner wall of the filter due to the pressure difference, forcing the dirt adsorbed on the inner wall to fall off, and relying on the high-speed water flow caused by the fish mesh core, it is flushed to the filter through the drain valve. When going out, when the flushing time reaches the preset value, the controller instructs the electromagnetic head to close the sewage valve, the sewage discharge ends, and the filter enters the normal working state.

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing.

Fig. 1 is a front structural schematic view of the utility model.

detailed description

An 8-inch centrifugal plus torpedo sand removal net type automatic flushing filter, as shown in Figure 1, 1-water inlet pipe; 2-water outlet pipe; 3-drainage valve; 4-cover seat; 5-torpedo mesh core; 6-filter Net; 7-ring seat; 8-automatic control system; 9-water control pipe; 10-high pressure water intake hole; 11-tank body; 12-vertical short pipe; 13-low pressure water intake hole; 14-butterfly valve; 15-sealing ring ;16-additional pipe; 17-connecting pipe; 18-exhaust valve; 19-water outlet; 20-water inlet; 21-sand separator; ; 25-pressure gauge; 26-electromagnetic head; 27-water delivery pipe, including sand and gravel separator and tank body, said sand and gravel separator is provided with water inlet, water delivery port, and the water delivery port of sand and gravel separator is connected in the On the water inlet pipe of the tank body, after that, the outlet pipe on the lower side of the tank body and the vertical short pipe of the additional pipe are docked with each other, realizing the combined form of the sand separator and the tank body. The tank body has an inlet pipe and an outlet pipe , ring seat, also includes the filter screen and cover seat with torpedo mesh core, the front and rear ends of the tank body are respectively equipped with seat ring and cover seat with sewage valve, and the filter screen with torpedo mesh core is installed between them , the drain valve on the cover seat can be connected to the automatic control system including the electromagnetic head through the water control pipe, realizing the automatic cleaning function, the self-cleaning time only needs 20-40 seconds, and the water supply is uninterrupted without affecting For the normal operation of the field system, the self-cleaning control mode can be diversified, that is, it can be cleaned by pressure difference, time and mixed mode, and it has the memory function of cleaning times in various modes. Operation, low labor intensity, high efficiency, less cleaning water consumption, less change of flow boundary conditions, small head loss and energy saving, and, in terms of tank structure, the parallel backwashing method of traditional filters is reformed into single direct flushing At the same time, the power consumption mode of the controller also adopts the direct current mode, that is, the controller only needs 4 ordinary batteries of 1.5 volts to operate, and can use one irrigation period to reduce the annual operation management fee, thus providing continuous power supply without electricity and self-voltage. Create conditions for the slice-management irrigation system and the centralized management of the first filter station.

Claims (3)

1. An 8-inch centrifugal plus torpedo desand net type automatic flushing filter, including a sand separator and a tank, is characterized in that: the sand separator is provided with a water inlet, a water delivery port, and sand and stone separation The water supply port of the tank is connected to the water inlet pipe of the tank body through a connecting valve. After that, the outlet pipe on the lower side of the tank body and the vertical short pipe of the additional pipe are connected to each other, realizing the combined form of the sand separator and the tank body. The body has a water inlet pipe, a water outlet pipe, a ring seat, and a filter screen with a torpedo mesh core and a cover seat. The front and rear ends of the tank body are respectively equipped with a seat ring and a cover seat with a drain valve. The filter screen with the torpedo mesh core, the drain valve on the cover seat can be connected to the automatic control system including the electromagnetic head through the water control pipe, so as to realize the automatic cleaning function. 2. The 8-inch centrifugal plus torpedo desanding net type automatic flushing filter according to claim 1, characterized in that: the water inlet of the sand separator is on the right side of the sand separator. 3. The 8-inch centrifugal plus torpedo desanding net type automatic flushing filter as claimed in claim 1 is characterized in that: the outer diameter of the filter screen is 200 mm and the length is 1040 mm, and a filter screen with a diameter of 155 mm and a length of 1040 mm is placed in the filter screen. PVC torpedo mesh core with 1040mm and 7mm wall thickness.