CN220772312U - Flow calibration column with self-checking function - Google Patents

Abstract

The utility model discloses a flow calibration column with a self-checking function, which comprises a flow calibration column body, wherein the bottom of the flow calibration column body and a protective shell are detachably and hermetically connected with a first seat body, the first seat body is in through connection with a three-way joint, the other two groups of output ends of the three-way joint are provided with first valves, one group of first valves are connected with a first connecting pipe, the other end of the first connecting pipe is connected with the output end of a water pump, the input end of the water pump is connected with a second connecting pipe, and the other end of the second connecting pipe is in through connection with a water tank.

Description

Flow calibration column with self-checking function

Technical Field

The utility model relates to the technical field of flow calibration columns, in particular to a flow calibration column with a self-checking function.

Background

In metering pumps or dosing systems, where the user is required to count the chemical liquid fed into the industrial flow line at regular intervals, the metering pump itself is not able to evaluate the flow accurately, so a calibration column is required to do this, basically the calibration column should be placed between the reservoir and the metering pump, the valve separating the reservoir is closed during operation, the metering pump is required to draw in liquid from the inside of the calibration column, and the volume discharged per unit time will give the exact flow rate of the metering pump when the calibration column is emptied.

The flow calibration column needs to be sealed to ensure the accuracy of measurement, but most of the flow calibration columns in the prior art are only simple glass columns, and the device for self-checking the tightness is not provided, so that the self-checking of the tightness of the flow calibration column cannot be performed, the tightness of the flow calibration column before installation cannot be ensured, the follow-up measurement is inaccurate possibly because the leakage of the flow calibration column is not found, and therefore, the flow calibration column with the self-checking function is provided.

Disclosure of Invention

The utility model aims to provide a flow calibration column with a self-checking function so as to solve the problems of the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a flow calibration post with self-checking function, includes the flow calibration post body, the outside cover of flow calibration post body is equipped with the protecting crust, the protecting crust corresponds the scale of flow calibration post body is link up and is seted up the through-hole, the flow calibration post body reaches the bottom of protecting crust and first pedestal detachable sealing connection, first pedestal link up and is connected with three way connection, first valve is installed to two sets of other output of three way connection, and one of them is a set of first valve is connected with first connecting pipe, the other end of first connecting pipe is connected with the output of water pump, the input of water pump is connected with the second connecting pipe, the other end of second connecting pipe link up and is connected with the water tank.

Preferably, the flow calibration column body and the top sealing connection of protecting crust has the second pedestal, the second pedestal is link up by the screw rod, and two threaded connection, the bottom of screw rod is connected with through the bearing rotation can be right flow calibration column body inner chamber carries out confined piston, the knob is installed at the top of screw rod.

Preferably, the piston is penetrated by a telescopic air pipe, and a second valve is arranged at one end of the air pipe penetrating through the second seat body.

Preferably, the flow calibration column body and the bottom of the protecting shell are inserted into the inner cavity of the first seat body, and the sealing gasket is installed at the joint of the flow calibration column body and the protecting shell and the first seat body, and the protecting shell is locked with the first seat body through the locking assembly.

Preferably, the locking assembly comprises a limiting block and a fastening bolt, wherein two groups of limiting blocks are symmetrically arranged on the outer walls of the protecting shell and the first seat body respectively, and the two groups of limiting blocks on the same side are locked through the fastening bolt.

Preferably, the water tank is connected with the first seat body and the second seat body through two groups of supporting seats respectively.

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

1. according to the utility model, the water pump is started, the first valve group connected with the first connecting pipe is started, liquid in the water tank is pumped out through the second connecting pipe, then the liquid is conveyed to the inside of the flow calibration column body along the three-way joint through the first connecting pipe, the tightness of the flow calibration column body is detected, after self-checking is finished, the first valve group is started, the liquid is discharged, the liquid can be collected for reuse, and compared with the prior art, the self-checking of the tightness of the flow calibration column body can be carried out, and the installed flow calibration column body is guaranteed to have good tightness, so that the accuracy of subsequent metering is guaranteed.

2. According to the utility model, the flow calibration column body made of transparent glass can be protected by the protective shell, meanwhile, the observation of scales of the flow calibration column body can not be influenced by the arranged through holes, the top of the flow calibration column body can be sealed by the second seat body, the piston can also seal the flow calibration column body, the screw is in threaded connection with the second seat body, and the screw is driven to rotate by rotating the knob, so that the piston is pushed to move in the flow calibration column body, the capacity of the flow calibration column body is regulated, the telescopic air pipe can not be influenced by the movement of the piston, and the flow calibration column body can be prevented from bursting by exhausting and releasing pressure through the air pipe by opening the second valve.

3. According to the utility model, the sealing gasket is arranged at the joint of the flow calibration column body and the first base body and the joint of the protecting shell and the first base body, so that the sealing connection is performed, then the fastening bolt passes through the limiting block, and the screw is screwed on to lock, so that the disassembly is convenient, and the subsequent cleaning of the flow calibration column body is convenient.

Drawings

FIG. 1 is a front semi-sectional view of the overall structure of the present utility model;

FIG. 2 is an enlarged view of the present utility model at structure A;

FIG. 3 is a schematic rear view of the overall structure of the present utility model;

fig. 4 is a schematic view of the overall structure of the present utility model.

In the figure: 1. the flow calibration column body 2, the protective shell 3, the through holes 4, the first seat body 5, the three-way joint 6, the first valve 7, the first connecting pipe 8, the water pump 9, the second connecting pipe 10 and the water tank, 11, a second seat body, 12, a screw rod, 13, a piston, 14, a knob, 15, an air pipe, 16, a second valve, 17, a sealing gasket, 18, a limiting block, 19, a fastening bolt, 20 and a supporting seat.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-4, the present utility model provides a flow calibration column with a self-checking function, which comprises a flow calibration column body 1, wherein a protecting shell 2 is sleeved outside the flow calibration column body 1, a through hole 3 is provided through the protecting shell 2 corresponding to the scale of the flow calibration column body 1, the flow calibration column body 1 and the bottom of the protecting shell 2 are detachably and hermetically connected with a first seat body 4, the first seat body 4 is in through connection with a three-way joint 5, the other two groups of output ends of the three-way joint 5 are provided with first valves 6, one group of first valves 6 is connected with a first connecting pipe 7, the other end of the first connecting pipe 7 is connected with the output end of a water pump 8, the input end of the water pump 8 is connected with a second connecting pipe 9, and the other end of the second connecting pipe 9 is in through connection with a water tank 10.

In this embodiment, the flow calibration column body 1 made of transparent glass can be protected by the protective shell 2, meanwhile, the observation on the scale of the flow calibration column body 1 cannot be influenced by the set through hole 3, before installation, a set of first valves 6 connected with the first connecting pipes 7 are opened by starting the water pump 8, liquid in the water tank 10 is pumped out through the second connecting pipes 9, the liquid is conveyed to the inside of the flow calibration column body 1 along the three-way joint 5 through the first connecting pipes 7, the tightness of the flow calibration column body 1 is detected, after self-checking is completed, another set of first valves 6 are opened, the liquid is discharged, the liquid can be collected for reuse, and compared with the prior art, the self-checking on the tightness of the flow calibration column body 1 can be carried out, the installed flow calibration column body 1 is guaranteed to have good tightness, and therefore the accuracy of subsequent metering is guaranteed.

Referring to fig. 1-4, the top of the flow calibration column body 1 and the top of the protecting shell 2 are connected with a second seat 11 in a sealing manner, the second seat 11 is penetrated by a screw 12, the two seat 11 are connected with each other in a threaded manner, a piston 13 capable of sealing the inner cavity of the flow calibration column body 1 is rotatably connected to the bottom of the screw 12 through a bearing, a knob 14 is mounted on the top of the screw 12, the piston 13 is penetrated by a telescopic air pipe 15, and one end of the air pipe 15 penetrates through the second seat 11 to be provided with a second valve 16.

In this embodiment, the second seat 11 can seal the top of the flow calibration column body 1, the piston 13 can seal the flow calibration column body 1, and the screw 12 is screwed with the second seat 11, so that the screw 12 is driven to rotate by rotating the knob 14, so that the piston 13 is pushed to move in the flow calibration column body 1, the capacity of the flow calibration column body 1 is regulated, the telescopic air pipe 15 can not be influenced by the movement of the piston 13, and the air pipe 15 can be used for carrying out air discharge and pressure relief by opening the second valve 16, so that the burst of the flow calibration column body 1 is prevented.

Referring to fig. 1-4, the bottoms of the flow calibration column body 1 and the protection shell 2 are inserted into the inner cavity of the first seat body 4, the sealing gasket 17 is installed at the joint of the flow calibration column body 1 and the protection shell 2 with the first seat body 4, the protection shell 2 is locked with the first seat body 4 through a locking assembly, the locking assembly comprises a limiting block 18 and a fastening bolt 19, two groups of limiting blocks 18 are symmetrically installed on the outer walls of the protection shell 2 and the first seat body 4, the two groups of limiting blocks 18 on the same side are locked through the fastening bolt 19, and the water tank 10 is connected with the first seat body 4 and the second seat body 11 through two groups of supporting seats 20 respectively.

In this embodiment, through installing sealed 17 at the junction of flow calibration post body 1 and protecting crust 2 and first pedestal 4, carry out sealing connection, then pass stopper 18 through fastening bolt 19, lock on screwing, conveniently dismantle to be convenient for follow-up clearance of flow calibration post body 1, utilize supporting seat 20 to improve the stability of water tank 10 installation, the flange is installed to the bottom of first pedestal 4, conveniently installs the flow calibration post.

Working principle: utilize protecting crust 2 can protect flow calibration post body 1 of transparent glass material, the through-hole 3 of utilizing to offer also can not influence the observation of flow calibration post body 1 scale simultaneously, before the installation, through starting water pump 8, open a set of first valve 6 of being connected with first connecting pipe 7, liquid in the water tank 10 pumps out through second connecting pipe 9, rethread first connecting pipe 7 carries to the inside of flow calibration post body 1 along three way connection 5, detect the leakproofness of flow calibration post body 1, after the self-checking is accomplished, open another set of first valve 6, discharge liquid, can collect the liquid and reuse, second pedestal 11 can seal flow calibration post body 1's top, because screw 12 and second pedestal 11 threaded connection, through rotating knob 14, drive screw 12 and rotate, make its promotion piston 13 in the inside activity of flow calibration post body 1, the capacity of adjusting flow calibration post body 1, telescopic trachea 15 can not receive piston 13 to remove, and can carry out the sealing up through second valve 16 through the connection through the second pedestal 16 and seal up through the sealing up of flow calibration post body 1, thereby install the sealing up of 1, the sealing up of screw 1 is convenient for install the screw 1, the volume is opened through the second pedestal 1, the sealing up through the sealing up of the screw 1 is convenient for install the sealing up 1, the sealing up is opened at the end is convenient for the sealing up 1 is located through the second pedestal 1, the sealing up through the screw 1 is convenient for install is adjusted, the sealing up 1, the volume is convenient to be adjusted, the volume is adjusted, the volume 15 is adjusted.

What is not described in detail in this specification is prior art known to those skilled in the art.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. Flow calibration post with self-checking function, including flow calibration post body (1), its characterized in that: the utility model discloses a flow calibration post body, including flow calibration post body (1), first valve (6) are installed to outside cover of flow calibration post body (1), protection shell (2) correspond through-hole (3) have been seted up to the scale of flow calibration post body (1), flow calibration post body (1) and the bottom of protection shell (2) and first pedestal (4) detachable sealing connection, first pedestal (4) through-connection has three way connection (5), first valve (6) are installed to other two sets of output of three way connection (5), a set of wherein first valve (6) are connected with first connecting pipe (7), the other end of first connecting pipe (7) is connected with the output of water pump (8), the input of water pump (8) is connected with second connecting pipe (9), the other end through-connection of second connecting pipe (9) has water tank (10).

2. The flow calibration column with self-test function according to claim 1, wherein: the flow calibration column comprises a flow calibration column body (1) and a protection shell (2), wherein a second seat body (11) is connected to the top of the protection shell in a sealing mode, the second seat body (11) is penetrated by a screw rod (12) and is in threaded connection with the screw rod, a piston (13) capable of sealing an inner cavity of the flow calibration column body (1) is rotatably connected to the bottom of the screw rod (12) through a bearing, and a knob (14) is arranged at the top of the screw rod (12).

3. A flow calibration column with self-test function according to claim 2, characterized in that: the piston (13) is penetrated by a telescopic air pipe (15), one end of the air pipe (15) penetrates through the second seat body (11), and a second valve (16) is arranged.

4. The flow calibration column with self-test function according to claim 1, wherein: the flow calibration column comprises a flow calibration column body (1) and a protection shell (2), wherein the bottom of the flow calibration column body is inserted into an inner cavity of a first seat body (4), a sealing gasket (17) is arranged at the joint of the flow calibration column body (1) and the protection shell (2) and the first seat body (4), and the protection shell (2) is locked with the first seat body (4) through a locking assembly.

5. The flow calibration column with self-test function of claim 4, wherein: the locking assembly comprises limiting blocks (18) and fastening bolts (19), wherein two groups of limiting blocks (18) are symmetrically arranged on the outer walls of the protective shell (2) and the first seat body (4), and the two groups of limiting blocks (18) on the same side are locked through the fastening bolts (19).

6. A flow calibration column with self-test function according to claim 2, characterized in that: the water tank (10) is respectively connected with the first seat body (4) and the second seat body (11) through two groups of supporting seats (20).