CN216935904U

CN216935904U - Water adding metering device

Info

Publication number: CN216935904U
Application number: CN202220740649.7U
Authority: CN
Inventors: 王艳辉; 孙大德; 温建民
Original assignee: Qingdao Ronghe Equipment Technology Co Ltd
Current assignee: Qingdao Ronghe Equipment Technology Co Ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-07-12
Anticipated expiration: 2032-03-31

Abstract

The utility model belongs to the technical field of glass manufacturing equipment, and relates to a water adding metering device which comprises a metering tank and a weighing unit, wherein the metering tank is connected with the bottom end of the weighing unit, the top end of the weighing unit is fixedly connected with a support, a pressure equalizing unit is arranged on the metering tank, the metering tank is connected with a water inlet valve through a water inlet pipe, and the bottom end of the metering tank is connected with a water discharge valve through a water discharge pipe. The utility model does not need a water pump to control the water adding amount, has the same theory as the actual water adding amount, can better ensure the mixture proportioning quality, and solves the adverse effect caused by frequent starting of the water pump.

Description

Water adding metering device

Technical Field

The utility model relates to a water adding metering device, and belongs to the technical field of glass manufacturing equipment.

Background

The existing float glass production line batching and water adding metering system comprises a water tank, a water pump, a flow meter, a pneumatic valve, a pressure gauge and a mixer, wherein the mixture water adding control is an important index in the glass batching system, after 1 minute of powder is added into the mixer, a certain amount of water is added into the mixer according to process requirements, at the moment, the water pump starts to be started, the water tank finally enters the mixer through the flow meter and the pneumatic valve, and the mixture and water are fully dissolved under the stirring of the mixer (as shown in figure 3). The water pump is started for 15s only according to theoretical calculation for batching, and the current problem is that the water pump is frequently started in the batching process, on one hand, the motor is badly influenced, on the other hand, moisture in a pipeline is frequently started and cannot completely enter a mixer, the situation that the actual water yield of the water pump is not matched with the water yield entering the mixer exists, the moisture is increased or decreased, the water adding amount is not easily controlled, and the batching quality of the mixture is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the utility model provides a water metering device adds water, this water metering device adds water volume of need not the water pump control, and the theory is the same with actual water volume of adding, the mixture batching quality of assurance that can be better, has solved the last the water pump frequently starts the harmful effects that cause.

The water adding metering device comprises a metering tank and a weighing unit, wherein the metering tank is connected with the bottom end of the weighing unit, the top end of the weighing unit is fixedly connected with a support, a pressure equalizing unit is arranged on the metering tank, the metering tank is connected with a water inlet valve through a water inlet pipe, and the bottom end of the metering tank is connected with a water discharge valve through a water discharge pipe.

The pressure equalizing unit is used for ensuring the internal pressure of the measuring tank, and ensuring the pressure difference with the outside and the internal pressure display of the tank body according to requirements, and is a commonly used mechanism; the pressure equalizing unit, the water inlet valve, the water discharge valve and the weighing unit are all connected with the control unit. When the specific batching and water adding are carried out, the drain valve is closed, the pressure equalizing unit is in an open working state, the pressure in the metering tank is kept consistent with the external air pressure, then the water inlet valve is controlled to be opened, water in the water supply tank flows into the metering tank through the water inlet valve and the water inlet pipe, and when the weighing unit reaches a set weighing value, the control unit controls the water inlet valve to be closed; when the mixer needs to add water, the drain valve is opened, water in the metering tank flows into the mixer, and the water adding process calibrated by the mixer is completed.

Preferably, the weighing unit comprises a weighing module, an upper pull rod and a lower pull rod are fixedly connected to the upper end and the lower end of the weighing module respectively, the top end of the upper pull rod is fixedly connected with the support through an upper connecting plate, and the bottom end of the lower pull rod is fixedly connected with the wall of the metering tank through a lower connecting plate. The water in the metering tank and the metering tank is weighed through the weighing module.

Preferably, the periphery of the metering tank is uniformly provided with a plurality of weighing units, the metering tank and the metering tank share weighing through the weighing units, the service life of each weighing unit is prolonged, and the metering tank is suspended stably and reliably.

Preferably, a safety pull rod is additionally arranged between the upper connecting plate and the lower connecting plate, the upper end and the lower end of the safety pull rod respectively penetrate through the upper connecting plate and the lower connecting plate, an upper locking nut is arranged on the periphery of the safety pull rod above the upper connecting plate, and a lower locking nut is additionally arranged on the periphery of the safety pull rod below the lower connecting plate. Under the condition that the metering tank is normally weighed and metered, the lower locking nut is far away from the lower connecting plate, so that the weighing precision is prevented; the arrangement of the safety pull rod is mainly used for preventing the measuring tank from being used for a long time to cause the loosening and the slipping of the upper pull rod and the lower pull rod of the weighing unit so as to damage equipment.

Preferably, the top of the metering tank is provided with a pressurizing port, the pressurizing port is communicated with compressed gas through a flexible connection pressure gas pipe, after the metering tank finishes water inlet, the compressed gas enters the metering tank through the pressurizing port, so that the water in the metering tank has certain pressure, and when the drain valve is opened, the pressure water in the metering tank flows into the mixer more smoothly. The flexible connection pressure air pipe is flexible connection, and the pressurizing device connected with the pressurizing port does not influence the weighing accuracy of the metering tank. The air compressor provides compressed air, and an air outlet of the air compressor is provided with an air outlet valve for controlling the introduction and the cut-off of the compressed air.

Preferably, the water inlet pipe and the water outlet pipe are both flexible connecting pipes. The drain valve and the water inlet valve can be fixed on the support and can also be fixed on a water supply or mixer communicated with the support, and the drain valve and the water inlet valve are isolated from the metering tank due to the arrangement of the flexible connecting pipe, so that the weighing accuracy of the metering tank is prevented from being influenced by the drain valve and the water inlet valve during weighing.

Preferably, the drain pipe at the bottom end of the metering tank is simultaneously connected with a manual sewage discharge valve for periodically cleaning and discharging the garbage and residues in the metering tank. The manual valve of blowdown can be fixed on the structure that support or blowdown were collected, and the accuracy of weighing of metering tank also can not be influenced in the setting of the manual valve of blowdown.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model has reasonable structural design, does not use a water pump to control the water adding amount, has the same theory as the actual water adding amount, can better ensure the mixture proportioning quality, and solves the adverse effect caused by frequent starting of the water pump; the arrangement of the flexible connection ensures that the manual drain valve, the drain valve and the water inlet valve do not influence the weighing accuracy of the metering tank; the pressure in the metering tank is increased through the pressure increasing port, when the drain valve is opened, pressure water in the metering tank flows into the mixer more smoothly, and the theoretical water adding amount is further guaranteed to be the same as the actual water adding amount.

Drawings

FIG. 1 is a first schematic structural view of a water metering device;

FIG. 2 is a schematic structural view II of a water adding metering device;

FIG. 3 is a prior art water dosing system.

In the figure: 1. a support; 2. a water inlet valve; 3. an upper connecting plate; 4. a weighing module; 5. a safety pull rod; 6. a lower connecting plate; 7. a metering tank; 8. a voltage equalizing unit; 9. a water inlet pipe; 10. a pressurizing port; 11. a drain valve; 12. a manual valve for sewage disposal; 13. a drain pipe; 14. a weighing unit; 15. a lower pull rod; 16. an upper pull rod; 17. a lower lock nut; 18. locking the nut; 19. a mixer.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

referring to fig. 1-3, the water adding metering device of the present invention comprises a metering tank 7 and a weighing unit 14, wherein the metering tank 7 is connected to the bottom end of the weighing unit 14, the top end of the weighing unit 14 is fixedly connected to a support 1, a pressure equalizing unit 8 is arranged on the metering tank 7, the metering tank 7 is connected to a water inlet valve 2 through a water inlet pipe 9, and the bottom end of the metering tank 7 is connected to a water discharge valve 11 through a water discharge pipe 13.

In this embodiment:

the weighing unit 14 comprises a weighing module 4, an upper pull rod 16 and a lower pull rod 15 are fixedly connected to the upper end and the lower end of the weighing module 4 respectively, the top end of the upper pull rod 16 is fixedly connected with the support 1 through an upper connecting plate 3, and the bottom end of the lower pull rod 15 is fixedly connected with the tank wall of the metering tank 7 through a lower connecting plate 6. The metering tank 7 and the water in the metering tank 7 are weighed by the weighing module 4.

A plurality of weighing units 14 are evenly distributed on the periphery of the metering tank 7, weighing is shared simultaneously in the metering tank 7 and the metering tank 7 through the weighing units 14, the service life of each weighing unit 14 is prolonged favorably, and the suspension of the metering tank 7 is stable and reliable.

Add safe pull rod 5 between upper junction plate 3 and the lower junction plate 6, both ends run through upper junction plate 3 and lower junction plate 6 respectively about safe pull rod 5, and the safe pull rod 5 periphery of upper junction plate 3 top is equipped with lock nut 18, and lock nut 17 is increased to the safe pull rod 5 periphery of lower junction plate 6 below. Under the condition that the metering tank 7 is normally weighed and metered, the lower locking nut 17 is far away from the lower connecting plate 6, so that the weighing precision is prevented; the safety pull rod 5 is mainly used for preventing the metering tank 7 from being used for a long time to cause the upper pull rod 16 and the lower pull rod 15 of the weighing unit 14 to be loosened and slipped off so as to damage the equipment.

7 tops of metering tank are equipped with pressure port 10, and pressure port 10 passes through flexible coupling pressure trachea intercommunication compressed gas, and after metering tank 7 intake and finish, compressed gas passes through in pressure port 10 squeezes into metering tank 7, makes the moisture in the metering tank 7 have certain pressure, and when drain valve 11 was opened, the more smooth inflow of pressure water in the metering tank 7 was to blendor 19. The flexible connection pressure air pipe is flexible connection, and the pressurizing device connected with the pressurizing port 10 does not influence the weighing accuracy of the metering tank 7.

The water inlet pipe 9 and the water outlet pipe 13 are both flexible connecting pipes. The drain valve 11 and the water inlet valve 2 can be fixed on the bracket 1 or can be fixed on a water supply or mixer 19 communicated with the bracket 1, and the arrangement of the flexible connecting pipe enables the drain valve 11 and the water inlet valve 2 to be isolated from the metering tank 7, so that the influence of the drain valve 11 and the water inlet valve 2 on the weighing accuracy of the metering tank 7 during weighing is avoided; the drain pipe 13 at the bottom end of the metering tank 7 is simultaneously connected with the manual drain valve 12 and is used for regularly cleaning and discharging garbage and residues in the metering tank 7, the manual drain valve 12 can be fixed on the bracket 1 or a structure for collecting drain, and the setting of the manual drain valve 12 does not influence the weighing accuracy of the metering tank 7.

The metering tank 7 is suspended on the bracket 1 through the weighing unit 14, the pressure equalizing unit 8 comprises a one-way control valve, a pressure gauge and a pressure gauge switch for control, and the pressure equalizing unit 8 is used for ensuring the internal pressure of the metering tank 7 and ensuring the pressure difference with the outside and the internal pressure display of the tank body according to requirements; the pressure equalizing unit 8, the water inlet valve 2, the water discharge valve 11 and the weighing unit 14 are all connected with the control unit. Both the water inlet valve 2 and the water discharge valve 11 may be pneumatic valves.

When the specific ingredients are added with water, the drain valve 11 and the manual blowdown valve 12 are closed, compressed gas stops entering the metering tank 7, the pressure equalizing unit 8 is in an open working state, the pressure in the metering tank 7 is kept consistent with the external air pressure, then the water inlet valve 2 is controlled to be opened, water in the water supply tank flows into the metering tank 7 through the water inlet valve 2 and the water inlet pipe 9, when the weighing unit 14 reaches a set weighing value, the water inlet valve 2 is controlled to be closed by the control unit, meanwhile, the one-way control valve of the pressure equalizing unit 8 is closed, and the compressed gas enters the metering tank 7 through the pressurizing port 10, so that the water in the metering tank 7 is provided with certain pressure; when the mixer 19 needs to add water, the drain valve 11 is opened, water in the metering tank 7 is injected into the mixer 19, the water adding process calibrated by the mixer 19 is completed, the theoretical water adding amount is the same as the actual water adding amount, and the mixture proportioning quality is better ensured.

Claims

1. The utility model provides a metering device adds water which characterized in that: including metering tank (7) and weighing unit (14), weighing unit (14) bottom is connected in metering tank (7), and the top and support (1) of weighing unit (14) are connected fixedly, are equipped with voltage-sharing unit (8) on metering tank (7), and inlet valve (2) are connected through inlet tube (9) in metering tank (7), and drain valve (11) are connected through drain pipe (13) in metering tank (7) bottom.

2. A dosing device as claimed in claim 1, characterized in that: the weighing unit (14) comprises a weighing module (4), an upper pull rod (16) and a lower pull rod (15) are fixedly connected to the upper end and the lower end of the weighing module (4) respectively, the top end of the upper pull rod (16) is fixedly connected with the support (1) through an upper connecting plate (3), and the bottom end of the lower pull rod (15) is fixedly connected with the tank wall of the metering tank (7) through a lower connecting plate (6).

3. A dosing device as claimed in claim 1 or 2, characterized in that: a plurality of weighing units (14) are uniformly distributed on the periphery of the metering tank (7).

4. A dosing device as claimed in claim 2, characterized in that: a safety pull rod (5) is additionally arranged between an upper connecting plate (3) and a lower connecting plate (6), the upper end and the lower end of the safety pull rod (5) respectively penetrate through the upper connecting plate (3) and the lower connecting plate (6), an upper locking nut (18) is arranged on the periphery of the safety pull rod (5) above the upper connecting plate (3), and a lower locking nut (17) is additionally arranged on the periphery of the safety pull rod (5) below the lower connecting plate (6).

5. A dosing device as claimed in claim 1, characterized in that: the top end of the metering tank (7) is provided with a pressurizing opening (10).

6. A dosing device as claimed in claim 1, characterized in that: the water inlet pipe (9) and the water outlet pipe (13) are both soft connecting pipes.

7. A dosing device as claimed in claim 6, characterized in that: a drain pipe (13) at the bottom end of the metering tank (7) is simultaneously connected with a manual sewage draining valve (12).