CN217304108U

CN217304108U - Anti-interference weighing device for standard gas cylinder

Info

Publication number: CN217304108U
Application number: CN202221286747.4U
Authority: CN
Inventors: 曾武; 李紫晗; 高斌; 吴宗谕; 石南南
Original assignee: Zhongji Hualiang Environmental Technology Hebei Co ltd
Current assignee: Zhongji Hualiang Environmental Technology Hebei Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-08-26
Anticipated expiration: 2032-05-26

Abstract

The utility model relates to a technical field is weighed to the gas cylinder, has provided and has held gaseous gas cylinder jam-proof type weighing device of standard, the power distribution box comprises a box body, controller and electronic balance, and the box has and holds the chamber, and electronic balance arranges in and holds intracavity and electric connection director, and the controller is located the outside of box, still includes negative pressure assembly, and the penetrating hole has been seted up to the lateral wall that holds the chamber, and negative pressure assembly includes shrouding and negative pressure pipe, and the shrouding is located the inner wall in penetrating hole and edge and penetrating hole in close contact with, and the through-hole has been seted up to the shrouding, and negative pressure pipe is located in the through-hole and is used for providing the negative pressure to holding the intracavity. Through the technical scheme, the problem that in the related art, the precision is not high when the weight of the gas cylinder after gas inflation is measured indoors is solved.

Description

Anti-interference weighing device for standard gas cylinder

Technical Field

The utility model relates to a technical field is weighed to the gas cylinder, and is concrete, relates to hold gaseous gas cylinder jam-proof type weighing device of standard.

Background

The standard gas is a gas industry term, and is generally a multi-component mixed gas, which is used in the fields of physical, chemical, biological and industrial measurement to calibrate measuring instruments and measuring processes, to evaluate the accuracy of measuring methods and the detection capability of detection laboratories, to determine the characteristic quantities of materials or products, to perform quantity arbitration, and the like. In the preparation process, the standard gas requires a plurality of components to be mixed according to a certain proportion. In the mixing process, errors inevitably occur, so the weight of the gas cylinder after the gas filling is finished needs to be measured, in order to meet the requirements of standard gas, high-precision measurement needs to be adopted, the existing equipment is used for measuring indoors, and errors still occur when the measurement is carried out indoors.

SUMMERY OF THE UTILITY MODEL

The utility model provides a hold gaseous gas cylinder jam-proof type weighing device of standard has solved among the correlation technique indoor not high problem of precision when measuring its weight to the gas cylinder after aerifing.

The technical scheme of the utility model as follows: hold gaseous gas cylinder jam-proof type weighing device of standard, including box, controller and electronic balance, the box has and holds the chamber, electronic balance arranges in hold intracavity and electricity and connect the controller, the controller is located the outside of box still includes the negative pressure subassembly, the penetrating hole has been seted up to the lateral wall that holds the chamber, the negative pressure subassembly includes shrouding and negative pressure pipe, the shrouding is located penetrating hole and edge with the inner wall in close contact with of penetrating hole, the through-hole has been seted up to the shrouding, the negative pressure pipe is located in the through-hole and be used for to hold the intracavity and provide the negative pressure.

As a further technical scheme, the negative pressure assembly further comprises a pressure release valve, the sealing plate is provided with a pressure release hole, and the pressure release valve is arranged in the pressure release hole.

As a further technical scheme, the negative pressure assembly further comprises a negative pressure pump, and the negative pressure pump is communicated with the negative pressure pipe.

As a further technical scheme, the box includes the frame, inclines the door and pushes up the door, the one end that inclines the door articulates the lateral part of frame, the one end that pushes up the door articulates the top of frame, the frame incline the door with it all is provided with the transparent plate to push up the door, the frame incline the door, push up the door with the transparent plate forms hold the chamber.

As a further technical scheme, sealing strips are arranged at the joints of the side opening door, the top opening door and the box body.

As a further technical scheme, the sealing strip is a magnetic sealing strip.

As a further technical scheme, the electronic balance further comprises an anti-vibration table, wherein the anti-vibration table is arranged in the accommodating cavity, and the electronic balance is arranged on the anti-vibration table.

As a further technical scheme, the box body structure further comprises a supporting platform, wherein the supporting platform is arranged on one side of the box body at intervals, and the controller is arranged on the supporting platform.

The utility model discloses a theory of operation and beneficial effect do: compared with the prior art, jam-proof type weighing device includes box, controller, electron balance and negative pressure subassembly, and the box has the chamber that holds, holds the chamber and can become confined form, and electronic balance places and holds the intracavity, and the gas cylinder is placed on electronic balance, and electronic balance is connected with the controller electricity, and the controller is located the outside that holds the chamber. In order to further improve the leakproofness that holds the chamber, still set up negative pressure assembly, set up the penetration hole on holding the lateral wall in chamber, negative pressure assembly includes shrouding and negative pressure pipe, and the shrouding sets up in the penetration hole to the edge of shrouding and the inner wall in close contact with of penetration hole, negative pressure pipe is 0.1MPa to holding the negative pressure that the intracavity provided, so just can increase the leakproofness that holds the chamber. The cavity of holding adopts confined form, can avoid holding the outside temperature of chamber and mobile air and to produce the influence to the weight measurement result of gas cylinder, has improved the measuring degree of accuracy.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic isometric view of an interference-proof weighing apparatus according to the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a schematic view of the structure of FIG. 1 at another angle;

FIG. 4 is a schematic view of the structure at I in FIG. 3;

in the figure:

1. the box, 2, controller, 3, electronic balance, 4, negative pressure subassembly, 5, shrouding, 6, negative pressure pipe, 7, relief valve, 8, negative pressure pump, 9, frame, 10, side door, 11, top-opening door, 12, sealing strip, 13, shockproof platform, 14, brace table, 15, cross the line hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work, are related to the scope of the present invention.

As shown in fig. 1-4, this embodiment has proposed and has held gaseous gas cylinder jam-proof type weighing device of standard, including box 1, controller 2 and electronic balance 3, box 1 has the chamber of holding, electronic balance 3 is arranged in and is held intracavity and electric connection director 2, controller 2 is located box 1's outside, still include negative pressure component 4, the penetrating hole has been seted up to the lateral wall that holds the chamber, negative pressure component 4 includes shrouding 5 and negative pressure pipe 6, shrouding 5 is located the penetrating hole and the inner wall in close contact with in edge and the penetrating hole, the through-hole has been seted up to shrouding 5, negative pressure pipe 6 is located in the through-hole and is used for providing the negative pressure to holding the intracavity.

In this embodiment, jam-proof type weighing device includes box 1, controller 2, electronic balance 3 and negative pressure component 4, and box 1 has the chamber of holding, holds the chamber and can become confined form, and electronic balance 3 places and holds the intracavity, and the gas cylinder is placed on electronic balance 3, and electronic balance 3 is connected with controller 2 electricity, and controller 2 is located the outside that holds the chamber. In order to further improve the leakproofness of holding the chamber, negative pressure subassembly 4 has still been set up, sets up the penetration hole on holding the lateral wall in chamber, and negative pressure subassembly 4 includes shrouding 5 and negative pressure pipe 6, and shrouding 5 sets up in the penetration hole to the edge of shrouding 5 and the inner wall in penetration hole in close contact with, negative pressure pipe 6 is 0.1MPa to holding the negative pressure that the intracavity provided, and so just can increase the leakproofness of holding the chamber. The cavity of holding adopts confined form, can avoid holding the outside temperature of chamber and mobile air and to produce the influence to the weight measurement result of gas cylinder, has improved the measuring degree of accuracy.

In this embodiment, in order to facilitate the connection wires of the controller 2 and the electronic balance 3 to pass through the accommodating cavity and avoid air leakage, the closing plate 5 may be provided with a wire passing hole 15, the wire passing hole 15 is only used for passing through the wires, and the outer edges of the wires are in close contact with the inner wall of the wire passing hole 15.

As shown in fig. 4, further, the negative pressure assembly 4 further includes a pressure release valve 7, the sealing plate 5 is provided with a pressure release hole, and the pressure release valve 7 is disposed in the pressure release hole. The negative pressure assembly 4 further comprises a negative pressure pump 8, and the negative pressure pump 8 is communicated with the negative pressure pipe 6.

In this embodiment, in order to avoid holding the intracavity pressure too big, can set up relief valve 7 on box 1, set up the pressure release hole on shrouding 5, relief valve 7 sets up in the pressure release hole, and when misoperation, in order to avoid negative pressure pipe 6 to cause the negative pressure that holds the intracavity to exceed the predetermined value, relief valve 7 can be opened automatically under this kind of circumstances.

As shown in fig. 1 to fig. 3, the box body 1 further includes a frame 9, a side-opening door 10 and a top-opening door 11, one end of the side-opening door 10 is hinged to a side portion of the frame 9, one end of the top-opening door 11 is hinged to a top portion of the frame 9, transparent plates are disposed on the frame 9, the side-opening door 10 and the top-opening door 11, and the frame 9, the side-opening door 10, the top-opening door 11 and the transparent plates form an accommodating cavity.

In this embodiment, in order to realize that can be convenient taking out and putting into the gas cylinder and hold the intracavity, box 1 includes frame 9, side door 10 and top door 11, and side door 10 sets up the lateral part at frame 9, and top door 11 sets up the top at frame 9, and the one end of side door 10 is articulated with the lateral part of frame 9, and the one end of top door 11 is articulated with the top of frame 9. The area of the top opening door 11 is smaller than that of the side opening door 10, namely, the top opening door 11 can be adopted when a small gas cylinder needs to be placed, and the side opening door 10 can be adopted when a large gas cylinder needs to be placed. Since the side door 10 is opened with more air flow into the receiving chamber than the top door 11, the precise measurement results may still be affected even if the negative pressure is drawn.

As shown in fig. 1 to 2, in order to further improve the sealing performance of the housing chamber, a weather strip 12 is provided at the joint of the side door 10, the top door 11, and the box body 1. Sealing strip 12 is a magnetic sealing strip 12

As shown in fig. 1 to 2, the electronic balance further includes a vibration-proof table 13, the vibration-proof table 13 is disposed in the accommodating cavity, and the electronic balance 3 is disposed on the vibration-proof table 13.

In this embodiment, in order to avoid when taking out the negative pressure, gaseous flow causes rocking of gas cylinder, can set up the shaking table 13 at holding the intracavity, electronic balance 3 places on shaking table 13, and shaking table 13 adopts the material of marble, and the material of marble can absorb some vibration energy, avoids the gas cylinder to lead to the fact the inaccurate phenomenon of weight measurement owing to appearing rocking.

As shown in fig. 1 to 3, the apparatus further includes a support table 14, the support table 14 is provided on one side of the case 1 at an interval, and the controller 2 is provided on the support table 14.

In this embodiment, for the convenience of operating and recording data, can also set up brace table 14 at the side interval of box 1, controller 2 sets up on brace table 14, can also set up negative pressure pump 8 in the below of brace table 14, avoids negative pressure pump 8 to receive and collides with.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Hold gaseous gas cylinder jam-proof type weighing device of standard, including box (1), controller (2) and electronic balance (3), box (1) has and holds the chamber, electronic balance (3) are arranged in hold intracavity and electricity and connect controller (2), controller (2) are located the outside of box (1), its characterized in that still includes negative pressure subassembly (4), the penetrating hole has been seted up to the lateral wall that holds the chamber, negative pressure subassembly (4) are including shrouding (5) and negative pressure pipe (6), shrouding (5) are located penetrating hole and edge with the inner wall in close contact with of penetrating hole, the through-hole has been seted up in shrouding (5), negative pressure pipe (6) are located in the through-hole and be used for to hold the intracavity and provide the negative pressure.

2. The anti-interference weighing device for the gas cylinder containing the standard gas according to claim 1, wherein the negative pressure component (4) further comprises a pressure release valve (7), the sealing plate (5) is provided with a pressure release hole, and the pressure release valve (7) is arranged in the pressure release hole.

3. The interference-proof weighing device for the gas cylinder containing the standard gas according to claim 2, wherein the negative pressure assembly further comprises a negative pressure pump (8), and the negative pressure pump (8) is communicated with the negative pressure pipe (6).

4. The interference-proof weighing device for standard gas cylinder according to claim 1, characterized in that the box body (1) comprises a frame (9), a side opening door (10) and a top opening door (11), one end of the side opening door (10) is hinged on the side of the frame (9), one end of the top opening door (11) is hinged on the top of the frame (9), the side opening door (10) and the top opening door (11) are all provided with transparent plates, and the frame (9), the side opening door (10), the top opening door (11) and the transparent plates form the accommodating cavity.

5. The interference-proof weighing device for the gas cylinder containing the standard gas according to claim 4, characterized in that a sealing strip (12) is provided at the junction of the side door (10), the top door (11) and the box body (1).

6. The tamper-proof weighing device for a gas cylinder containing standard gas according to claim 5, characterized in that the sealing strip (12) is a magnetic sealing strip.

7. The interference-proof weighing device for the gas cylinder containing the standard gas according to claim 1, further comprising an anti-vibration table (13), wherein the anti-vibration table (13) is arranged in the containing cavity, and the electronic balance (3) is arranged on the anti-vibration table (13).

8. The interference-proof weighing device for the gas cylinder containing the standard gas according to claim 1, further comprising a support table (14), wherein the support table (14) is arranged at one side of the box body (1) at intervals, and the controller (2) is arranged on the support table (14).