CN218331201U

CN218331201U - Metering device or colorimetric device for water quality analysis

Info

Publication number: CN218331201U
Application number: CN202220355793.9U
Authority: CN
Inventors: 郭孝贵
Original assignee: Chengdu Yuyi Technology Co ltd
Current assignee: Chengdu Yuyi Technology Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2023-01-17
Anticipated expiration: 2032-02-22

Abstract

The utility model discloses a metering device or color comparison device for water quality analysis, which comprises an outer shell, the quartz capsule, the connecting pipe, joint and light signal spare installation pipe, the upper and lower both ends of quartz capsule are equipped with the spliced pole respectively, be equipped with the internal thread on the pore wall of the upper segment through-hole of connecting pipe and the pore wall of hypomere through-hole respectively, connect including the joint big footpath section that connects gradually, connect changeover portion and joint path section, two spliced poles are arranged in respectively and are passed through threaded connection in two spliced poles, two joint path sections that connect are arranged in respectively and are passed through threaded connection in two spliced poles, two connect big footpath section and arrange in respectively outside the shell, two light signal spare installation pipes are installed respectively in two light signal spare installation holes on two relative curb plates of shell. The utility model discloses a junction at quartz capsule both ends is sealed effectual to utilize the joint changeover portion to realize better sealed effect to the connecting pipe, improved the accuracy of measurement detection or colorimetric analysis result, and be convenient for install and remove the quartz capsule.

Description

Metering device or colorimetric device for water quality analysis

Technical Field

The utility model relates to a metering device or color comparison device especially relate to a metering device or color comparison device for water quality analysis.

Background

The water quality analysis equipment plays a very important role in environmental monitoring, and the water path control system is an important component of the water quality analysis equipment, and the quality of the water path control system plays a decisive role in the accuracy of water quality analysis.

A waterway control system for water quality analysis mainly comprises a peristaltic pump, a metering device, a colorimetric device, an electromagnetic valve, a multi-channel drain valve and a controller, wherein the metering device is used for quantifying a water sample, the colorimetric device is used for carrying out colorimetric analysis on the water sample, and the metering device and the colorimetric device are devices most closely related to the accuracy of the water quality analysis.

The conventional metering and colorimetric devices have the following disadvantages: the upper end and the lower end of the inner quartz tube are directly butted with the joint, the sealing effect of the joint is poor, liquid is easy to leak, and the liquid is remained on the outer wall or the shell of the quartz tube after leaking, so that the detection result of metering detection or color reaction can be influenced, and the accuracy of the metering detection or colorimetric analysis result is reduced; meanwhile, the shell of the traditional metering device and the colorimetric device is of an integrated integral structure, the function of observing internal reaction is difficult to realize according to application requirements, local damaged parts are not convenient to replace, the whole device or a large part may need to be replaced after the local damage, and the maintenance cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a metering device or color comparison device for water quality analysis which is good in sealing effect and convenient to disassemble and assemble for solving the problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a metering device or color comparison device for water quality analysis, includes shell, quartz capsule, connecting pipe, joint and light signal spare installation pipe, and is vertical the quartz capsule is arranged in the long cubic the intracavity of shell, the upper and lower both ends of quartz capsule are equipped with vertical spliced pole respectively, the spliced pole is equipped with and is equipped with the external screw thread on vertical central through-hole and the outer wall, and is vertical be equipped with the internal thread on the pore wall of the upper segment through-hole of connecting pipe and the pore wall of hypomere through-hole respectively, the joint is equipped with vertical central through-hole, connect including the joint major diameter section that connects gradually, connect changeover portion and connect the minor diameter section, the external diameter that connects the major diameter section is greater than connect the external diameter of minor diameter section, the surface that connects the changeover portion is the conical surface or sphere, be equipped with the external screw thread on the outer wall that connects the minor diameter section, two the spliced pole is arranged in respectively connect in and through threaded connection, two the joint minor diameter section of joint is arranged in respectively two connect in the connecting pipe and through threaded connection, the roof and the bottom plate of shell are equipped with vertical joint mounting hole respectively, two connect the joint mounting hole just two the light signal spare is equipped with respectively the light signal spare installation hole is installed in two horizontal signal spare curb plates on the shell respectively. The difference between the metering device and the colorimetric device lies in that the connected light emitter and light receiver are different, the metering device adopts an infrared light emitter and an infrared light receiver, the colorimetric device adopts a light emitter for colorimetric detection and a light receiver for colorimetric detection for detection reaction, and the type of light for specific colorimetric detection is determined according to the detection requirement.

Preferably, in order to facilitate processing, assembly and disassembly of the housing and the optical signal element mounting tube, the housing comprises a rectangular housing body with an upper part and one side open, a cover plate is mounted on the upper opening of the housing body through screws, the cover plate is a top plate of the housing, a detachable panel is mounted on the side opening of the housing body through screws, the optical signal element mounting tube comprises a mounting tube large-diameter section and a mounting tube small-diameter section, the outer diameter of the mounting tube large-diameter section is larger than that of the mounting tube small-diameter section, an annular boss is arranged between the mounting tube large-diameter section and the mounting tube small-diameter section, the outer diameter of the annular boss is larger than that of the mounting tube large-diameter section, and a convex ring with a larger outer diameter is arranged at one end of the transverse sleeve, two the sleeve pipe passes two respectively the light signal spare mounting hole just the bulge loop is arranged in the shell this external and with the outer wall in close contact with of shell body, two the installation pipe path section of light signal spare installation pipe inserts two respectively in the sheathed tube central through hole, two the bulge loop is respectively with two annular boss in close contact with, and the one end that the mounting disc was equipped with horizontal central through hole and this central through hole's pore wall is equipped with the more big counter bore in aperture, two the mounting disc respectively through the screw with shell body's corresponding lateral wall is connected, two the installation pipe path section of light signal spare installation pipe passes two respectively the central through hole of mounting disc, mutual contact the bulge loop with annular boss is arranged in and is corresponded in the counter bore of mounting disc.

Preferably, to facilitate viewing of the metering process and to avoid the effects of external light on the colorimetric analysis, the removable panel of the metering device is a transparent panel and the removable panel of the colorimetric device is an opaque panel.

Preferably, in order to reduce the flow rate of liquid flowing through the joint to further improve the leakage-proof effect, the aperture of the central through hole of the connecting column is 2mm, a transverse partition plate is arranged between the upper section through hole and the lower section through hole of the connecting tube, a vertical through hole with the aperture of 2mm is arranged at the central position of the partition plate, and the aperture of the central through hole of the small-diameter section of the joint is equal to or larger than 2mm.

The beneficial effects of the utility model reside in that:

the utility model discloses a design the spliced pole at the both ends of the quartz capsule of metering device or color comparison device, and between spliced pole and connecting pipe, respectively through threaded connection between connecting pipe and the joint, the junction is sealed effectual, and utilize the joint changeover portion to realize better sealed effect to the connecting pipe, the water sample can not reveal from the junction between quartz capsule and joint, avoided the weeping to produce the influence to the testing result of measurement detection or color reaction, improved the accuracy of measurement detection or color comparison analysis result, and be convenient for install and remove the quartz capsule; the shell is designed into a detachable structure, so that the function of observing internal reaction can be realized according to application requirements, the maintenance efficiency is improved, the mounting structure of the optical signal piece mounting pipe is designed into a structure which is formed by matching a sleeve pipe and a mounting disc, the stable mounting can be realized, the replacement of local damaged parts can be facilitated, and the maintenance cost is reduced; the aperture of the central through hole of the connecting column and the aperture of the through hole of the partition plate of the connecting pipe are designed to be 2mm, so that the contact area of an internal water sample with the connecting column and the connecting pipe is reduced, and the possibility of liquid leakage is further reduced.

Drawings

Fig. 1 is a schematic perspective view of a water quality analysis meter or a colorimetric device according to the present invention before assembly, in which a connection pipe, a joint, an optical signal member mounting pipe, a sleeve pipe, and a mounting plate are omitted;

fig. 2 is a schematic view of the assembled three-dimensional structure of the metering device or the colorimetric device for water quality analysis of the present invention, and the proportion is greater than that of fig. 1.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1 and fig. 2, the measuring device or colorimetric device for water quality analysis of the present invention comprises a housing, a quartz tube 22, a connecting tube 16, a connector 12 and an optical signal installation tube 4, wherein the vertical quartz tube 22 is disposed in an inner cavity of the housing in a rectangular shape, the upper and lower ends of the quartz tube 22 are respectively provided with a vertical connecting post 20, the connecting post 20 is provided with a vertical central through hole 19, and the outer wall of the connecting post 20 is provided with an external thread, the hole wall of the upper section through hole 15 and the hole wall of the lower section through hole 18 of the vertical connecting tube 16 are respectively provided with an internal thread, the connector 12 is provided with a vertical central through hole, the connector 12 comprises a connector large diameter section (same as the marked position of the connector 12 in the figure, so that the connector is not marked separately), a connector transition section 13 and a connector small diameter section 14, the external diameter that connects the major diameter section is greater than the external diameter that connects minor diameter section 14, and the surface that connects changeover portion 13 is conical surface or sphere, connects to be equipped with the external screw thread on the outer wall of minor diameter section 14, and two spliced poles 20 are arranged in two connecting pipes 16 respectively and pass through threaded connection, and two joint 12's joint minor diameter section 14 are arranged in two connecting pipes 16 respectively and pass through threaded connection, the roof of shell is equipped with vertical top connection mounting hole 11, the bottom plate of shell is equipped with vertical lower clutch mounting hole 25, and two joint 12 pass top connection mounting hole 11 and lower clutch mounting hole 25 respectively just connect the major diameter section to be arranged in outside the shell, be equipped with horizontal light signal spare mounting hole 23 on two relative curb plates of shell respectively, two horizontal light signal spare mounting tubes 4 are installed respectively in two light signal spare mounting holes 23.

Preferably, in order to facilitate processing and assembly and disassembly of the housing and the optical signal element mounting tube 4, the housing comprises a housing body 21 in a rectangular parallelepiped shape with an upper portion and one side open, a cover plate 10 is mounted on the upper opening of the housing body 21 through screws, the cover plate 10 is a top plate of the housing, a detachable panel 24 is mounted on a side opening of the housing body 21 through screws, the optical signal element mounting tube 4 comprises a mounting tube large-diameter section (which is marked at the same position as the optical signal element mounting tube 4 in the figure and is not marked separately) and a mounting tube small-diameter section 6, the outer diameter of the mounting tube large-diameter section is larger than the outer diameter of the mounting tube small-diameter section 6, an annular boss 5 is arranged between the mounting tube large-diameter section and the mounting tube small-diameter section 6, and the outer diameter of the annular boss 5 is larger than the outer diameter of the mounting tube large-diameter section, one end of a transverse sleeve 8 is provided with a convex ring 7 with larger outer diameter, the two sleeves 8 respectively penetrate through two optical signal piece mounting holes 23, the convex ring 7 is arranged outside the shell body 21 and is tightly contacted with the outer wall of the shell body 21, the mounting pipe small-diameter sections 6 of the two optical signal piece mounting pipes 4 are respectively inserted into the central through holes 9 of the two sleeves 8, the two convex rings 7 are respectively tightly contacted with the two annular bosses 5, the mounting disc 1 is provided with a transverse central through hole 2, one end of the hole wall of the central through hole 2 is provided with a counter bore 3 with larger diameter, the two mounting discs 1 are respectively connected with the corresponding side walls of the shell body 21 through screws, the mounting pipe large-diameter sections of the two optical signal piece mounting pipes 4 respectively penetrate through the central through holes 2 of the two mounting discs 1, and the convex ring 7 and the annular boss 5 which are mutually contacted are arranged in the counter bores 3 of the corresponding mounting discs 1; in order to facilitate the observation of the metering process and to avoid the influence of external light on the colorimetric analysis, the removable panel 24 of the metering device is a transparent panel and the removable panel 24 implementing the colorimetric device is an opaque panel; in order to reduce the flow rate of liquid flowing through the interface to further improve the leakage-proof effect, the aperture of the central through hole 19 of the connecting column 20 is 2mm, a transverse partition plate is arranged between the upper section through hole 15 and the lower section through hole 18 of the connecting pipe 16, the central position of the partition plate is provided with a vertical through hole 17 with the aperture of 2mm, and the aperture of the central through hole of the small-diameter section 14 of the joint is equal to or larger than 2mm.

Description of the drawings: the light emitter and the light receiver of the above-mentioned metering device or colorimetric device are not shown in the figure, specifically, if the metering device is used, the light emitter and the light receiver are an infrared light emitter and an infrared light receiver respectively, and the signal output end of the infrared light receiver is the signal output end of the metering device; if the device is a colorimetric device, the light emitter and the light receiver are respectively a light emitter for colorimetric detection and a light receiver for colorimetric detection, and the signal output end of the light receiver for colorimetric detection is the signal output end of the colorimetric device. Whether the device is a metering device or a colorimetric device, the light emitter and the light receiver are respectively arranged on the two light signal piece installation tubes 4.

As shown in fig. 1 and fig. 2, when in use, the corresponding light emitter (not shown in the figure) and light receiver (not shown in the figure) are respectively installed on the two light signal piece installation pipes 17, liquid (i.e. water sample) to be measured or detected is sent from the joint 12 at the lower end, if the measuring device is used, the joint 12 at the upper part is connected with a peristaltic pump, the water sample is sucked in by using air negative pressure or discharged by using air positive pressure, and after the corresponding water sample enters the quartz pipe 22, the water sample measuring purpose is realized after the corresponding infrared light receiver detects that the water sample reaches the designated liquid level; if the colorimetric device is used, the joint 12 on the upper part of the colorimetric device is connected with the overflow bottle, the excessive water sample overflows from the joint 12 on the upper part, and after the corresponding water sample enters the quartz tube 22, the corresponding optical receiver for colorimetric detection transmits the detected optical signal to another controller, so that the purpose of performing colorimetric analysis on the water sample is realized, and finally, the water quality analysis is realized.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.

Claims

1. A metering device or colorimetric device for water quality analysis, characterized in that: including shell, quartz capsule, connecting pipe, joint and optical signal spare installation pipe, vertical the quartz capsule is arranged in the long cubic the intracavity of shell, the upper and lower both ends of quartz capsule are equipped with vertical spliced pole respectively, the spliced pole is equipped with and is equipped with the external screw thread on vertical central through-hole and the outer wall, vertical be equipped with the internal thread on the pore wall of the upper segment through-hole of connecting pipe and the pore wall of hypomere through-hole respectively, the joint is equipped with vertical central through-hole, connect including the joint major diameter section that connects gradually, connect changeover portion and connect the path section, the external diameter that connects the major diameter section is greater than connect the external diameter of path section, the surface that connects the changeover portion is conical surface or sphere, be equipped with the external screw thread on the outer wall that connects the path section, two the spliced pole is arranged in respectively connect intraductally and through threaded connection, two connect the path section arrange in respectively two the connecting pipe and through threaded connection, the roof and the bottom plate of shell are equipped with vertical joint mounting hole respectively, two connect the joint mounting hole just connect the optical signal spare to connect the installation hole respectively.

2. A metering or colorimetric device for water quality analysis according to claim 1, wherein: the casing includes upper portion and the long cubic shell body of one side open-ended wherein, the upper portion opening of shell body has the apron through the screw mounting, the apron does the roof of casing, the side opening of shell body has the detachable panel through the screw mounting, the optical signal spare mounting tube includes mounting tube major diameter section and mounting tube minor diameter section, the external diameter of mounting tube major diameter section is greater than the external diameter of mounting tube minor diameter section, mounting tube major diameter section with be equipped with annular boss between the mounting tube minor diameter section, the external diameter of annular boss is greater than the external diameter of mounting tube major diameter section, horizontal sheathed tube one end is equipped with the greater bulge loop of external diameter, two the sleeve pipe passes two respectively optical signal spare mounting hole just the bulge loop is arranged in the casing originally externally and with the outer wall in close contact with of shell body, two the mounting tube minor diameter section of optical signal spare mounting tube inserts two respectively in the sheathed tube central through-hole, two bulge loops respectively with two annular boss in close contact with annular boss close contact, the mounting disc is equipped with the one end of horizontal central through-hole and is equipped with the one end of this central through-hole counter bore hole and is equipped with the counter bore of mounting tube and the mounting tube corresponds respectively the mounting hole the mounting tube lateral wall of two the counter bore of annular boss the mounting tube corresponds the mounting hole is the mounting tube lateral wall of the mounting hole is connected the mounting tube.

3. A metering or colorimetric device for water quality analysis according to claim 2, wherein: the panel of dismantling of metering device is the transparent plate, the panel of dismantling of color comparison device is opaque plate.

4. A metering or colorimetric device for water quality analysis as claimed in claim 1, 2 or 3, wherein: the aperture of the central through hole of the connecting column is 2mm, a transverse partition plate is arranged between the upper section through hole and the lower section through hole of the connecting pipe, a vertical through hole with the aperture of 2mm is arranged at the center of the partition plate, and the aperture of the central through hole of the small-diameter section of the joint is equal to or larger than 2mm.