CN216594743U

CN216594743U - Self-discharging constant volume detector

Info

Publication number: CN216594743U
Application number: CN202123103732.8U
Authority: CN
Inventors: 曹传波; 赵延广
Original assignee: Chongqing Chuanyi Analyzer Co ltd
Current assignee: Chongqing Chuanyi Analyzer Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-05-24
Anticipated expiration: 2031-12-10

Abstract

The utility model discloses a self-draining constant-volume detector which comprises a detection body, a drain arranged on the detection body, a drain channel and a siphon channel, wherein the drain channel and the siphon channel are arranged on the detection body, the drain is communicated with the bottommost part of an inner cavity of the detection body, the drain is communicated with the siphon channel through the drain channel, and a siphon trigger point of the siphon channel is higher than the drain and the highest point of the siphon channel. The detection device provided by the utility model does not need a liquid discharge pump, so that the detection device has no limit on the corrosivity of the solution and particle impurities, can realize automatic emptying of the liquid in the detector, can weaken and even eliminate the influence of the solution impurities on pollution discharge by adjusting the diameter of each channel, ensures that the pollution discharge process is efficient and reliable, eliminates the liquid discharge pump, can reduce the failure rate of the detection device, greatly improves the reliability of the product and reduces the production cost.

Description

Self-discharging constant volume detector

Technical Field

The utility model relates to the technical field of analytical instruments, in particular to a self-sewage-discharging constant-volume detector.

Background

Detectors of colorimetric detection analyzers such as silicate analyzers, phosphate analyzers, hydrazine analyzers and the like firstly need to quantify liquid entering the detectors in the measurement process, and a special quantification module is matched with a sample injection solenoid valve to complete the measurement, so that the overall cost is high.

The detector of the analyzer is the core measuring component of the analyzer, and after the solution and the reagent complete the chemical reaction, the absorbance change before and after the chemical reaction of the solution is measured, so that the concentration of the measured substance can be calculated by the analyzer. The volume of the solution participating in the reaction, the conditions of the chemical reaction, the cleanliness of the detector and other requirements are necessary conditions for ensuring the accuracy and stability of the measurement of the instrument.

In order to ensure the cleanliness of the detector, the detector needs to be repeatedly washed before measurement; the detector needs to be drained after the measurement is completed. Both the flushing and evacuation processes require pumping with a liquid diaphragm pump. However, the sewage of the detector contains strong acids such as sulfuric acid and hydrochloric acid and particle impurities in the sample water, so that the sewage pump is easily damaged in the using process, and the measurement fault of the instrument is caused.

Therefore, a self-sewage-discharging constant-volume detector is needed, the device can automatically discharge sewage, power is not required to be provided by means of an external pump, energy is saved, the environment is protected, meanwhile, the detection fault caused by the arrangement of the pump is avoided, and the reliability of the detection device is improved.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides a self-draining constant volume detector, which can automatically drain dirt without using an external pump to provide power, is energy-saving, green and environment-friendly, and can avoid detection faults caused by the arrangement of the pump and improve the reliability of the detection device.

The utility model discloses a self-draining constant-volume detector which comprises a detection body, a drain arranged on the detection body, a drain channel and a siphon channel, wherein the drain channel and the siphon channel are arranged on the detection body, the drain is communicated with the bottommost part of an inner cavity of the detection body, the drain is communicated with the siphon channel through the drain channel, and a siphon trigger point of the siphon channel is higher than the drain and higher than the highest point of the siphon channel.

Further, still be provided with constant volume mouth and constant volume passageway on detecting the body, constant volume mouth and detection body inner chamber intercommunication, the constant volume mouth is higher than the drain, the constant volume mouth passes through constant volume passageway and siphon passageway intercommunication, the siphon trigger point of siphon passageway is higher than the constant volume mouth and is higher than the peak of constant volume passageway.

And the valve body is arranged on the detection body and used for controlling the opening and closing of the constant volume channel and the sewage discharge channel.

Further, still include the siphon, the siphon passageway is vertical passageway, the siphon passes in the siphon passageway from siphon passageway lower extreme, siphon upper end keeps setting for the distance as siphon trigger point and siphon passageway upper end, form the siphon runner between siphon outer wall and the siphon passageway inner wall, sealed cooperation between siphon and the siphon passageway lower port.

Further, be provided with the shared channel on detecting the body, shared channel and siphon passageway direct intercommunication, blowdown passageway and constant volume passageway and shared channel direct intercommunication, the peak of shared channel is less than the siphon trigger point of siphon passageway.

Further, detect body upper end opening, the sealed lid of upper end of detecting the body has the appearance lid, it has seted up the introduction port to cover to advance the appearance.

Further, an optical detection unit and an optical emission unit which are horizontally arranged oppositely are respectively arranged on the opposite side walls of the detection body.

Further, the bottom of the detection body is provided with a stirring device.

Further, the lowest position of the sewage outlet is lower than the lowest position of the inner cavity of the detection body.

The utility model has the beneficial effects that:

according to the detection device, a liquid discharge pump is not required to be arranged outside, so that the corrosivity and particle impurities of the solution are not limited, the automatic emptying of the liquid in the detector can be realized, the influence of the solution impurities on pollution discharge can be eliminated even by adjusting the diameter of each channel, the efficiency and reliability of the pollution discharge process are ensured, the liquid discharge pump is omitted, the failure rate of the detection device can be reduced, the reliability of the product is greatly improved, and the detection device is energy-saving, green and environment-friendly; the structure can also realize the automatic constant volume function, quickly fix the volume and improve the detection efficiency; the automatic blowdown mode and the constant volume mode of the detector can be switched by switching the opening and closing of the blowdown port and the constant volume port, and the use is convenient; the whole device also eliminates outsourcing parts such as an overflow cup module workpiece, a pinch valve, a liquid diaphragm pump and the like in the existing detection device, and effectively reduces the cost of the whole detection device.

Drawings

The utility model is further described below with reference to the figures and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of FIG. 1;

FIG. 3 is a schematic cross-sectional view of FIG. 2;

FIG. 4 is a schematic cross-sectional view of FIG. 3;

FIG. 5 is a schematic view of the blowdown mode configuration of FIG. 1;

FIG. 6 is a schematic view of the blowdown mode configuration of FIG. 2;

FIG. 7 is a schematic view of the blowdown mode configuration of FIG. 3;

FIG. 8 is a schematic structural view of a constant volume mode 1;

FIG. 9 is a schematic structural view of a constant volume mode 2;

FIG. 10 is a schematic structural view of a constant volume mode 3;

Detailed Description

The basic components of the existing detection device comprise a detector support, an optical detection unit, an optical emission unit and the like; in the measuring process, the solution to be measured is injected into the detector, and the solution is emptied from the sewage outlet through the liquid diaphragm pump, so that the aim of cleaning the detector is fulfilled; and after the cleaning is finished, injecting a solution with a specified volume into the detector, after the solution reacts with the chemical reagent, measuring the attenuation of the light rays passing through the solution by the optical detection unit, and emptying the liquid in the detector to finish the measurement after the measurement is finished.

The requirement of cleaning the detector is that the solution can be drained as much as possible, if the membrane pump fails, the sewage cannot be completely drained from the inside of the detector, and the detection fault of the instrument is caused; and the unable pumping frequently appears in the liquid diaphragm pump in the in-service use in-process, and there are two aspects for the analysis reason: firstly, solutions after reaction are measured to be solutions with strong corrosivity, and a diaphragm of the liquid diaphragm pump can be corroded and adhered after long-time use; furthermore, the solution to be tested often contains fine particulate impurities which can cause the diaphragm seal of the liquid diaphragm pump to fail, resulting in pump failure.

In addition, the detector firstly needs to quantify the liquid entering the detector in the measuring process, in the prior art, a special overflow quantifying module is adopted to match with a sample injection electromagnetic valve to complete constant volume quantifying work, an overflow cup and accessory parts made of organic glass materials need to be processed, and a pipe clamping electromagnetic valve is purchased, so that the overall cost is high.

This embodiment provides a constant volume detector from blowdown, including detecting body 1, setting up drain 2 on detecting the body and setting up sewage pipes 3 and siphon passageway 4 on detecting the body, drain 2 and detection body inner chamber bottommost intercommunication, drain 2 passes through sewage pipes 3 and siphon passageway 4 intercommunication, siphon passageway 4's siphon trigger point is higher than drain 2 and is higher than the peak of siphon passageway.

Referring to fig. 1 to 4, the detecting body 1 is a cuboid structure, the drain outlet 2 is horizontally arranged on the side wall of the detecting body and is positioned at the lowest position of the inner cavity of the detecting body, the drain passage 3 can be a straight passage or a bent passage, the drain outlet, the drain passage and the siphon passage form a drain structure, and the opening and closing of the drain outlet or the drain passage can be controlled by the valve body; the siphon trigger point of the siphon channel is the position for triggering the siphon channel to drain water, when the siphon channel is a vertical channel, the siphon trigger point is the connection point of the siphon channel and the sewage draining channel 3, when the sewage draining channel is an upwardly arched channel, the siphon trigger point is the arch part of the sewage draining channel, and in terms of the structure of the siphon shown in fig. 4, the siphon trigger point is the upper end position of the siphon 8; when the detection body is cleaned, when the liquid level in the detection body is higher than the siphon trigger point of the siphon channel 4, the solution in the detection body can be completely drained along the drain outlet, the drain channel and the siphon channel by opening the drain outlet or the drain channel;

in this embodiment, still be provided with constant volume mouth 5 and constant volume passageway 6 on detecting the body, constant volume mouth and detection body inner chamber intercommunication, constant volume mouth is higher than the drain, constant volume mouth passes through constant volume passageway 6 and siphon passageway intercommunication, siphon passageway 4's siphon trigger point is higher than constant volume mouth 5 and is higher than the peak of constant volume passageway.

As shown in fig. 1 to 4, the highest point of the constant volume channel and the sewage channel is ensured to be lower than the siphon trigger point; the constant volume port 5 is horizontally arranged on the side wall of the detection body, the constant volume channel 6 can be a straight channel or a bent channel, the constant volume port, the constant volume channel and the siphon channel form a constant volume structure, and the position of the constant volume port is set according to the position of the detection body needing constant volume; if a plurality of constant volume positions are needed, corresponding constant volume ports can be arranged at each position, when the solution in the detection body is higher than a siphon trigger point of the siphon channel 4 and the constant volume of the solution in the detection body is needed, the solution in the detection body can be discharged along the constant volume ports, the constant volume channels and the siphon channel by opening the constant volume ports, when the liquid level is reduced to the constant volume ports, the liquid discharge is stopped, and if a plurality of constant volume ports are arranged, the opened constant volume ports can be switched to select the corresponding constant volume liquid level height;

in this embodiment, the device further comprises a valve body 7, wherein the valve body is mounted on the detection body and used for controlling the opening and closing of the constant volume channel and the sewage draining channel. As shown in fig. 3 and 4, an electromagnetic valve is arranged outside the detection body, the electromagnetic valve has an NO port and an NC port, the NO port of the electromagnetic valve is used as a part of the constant volume channel, and the NC port of the electromagnetic valve is used as a part of the sewage drain channel, and the electromagnetic valve is used for controlling the opening and closing of the sewage drain channel and the constant volume channel, so that the switching between the sewage drain mode and the constant volume mode is facilitated; of course, the mechanical valves can be respectively arranged at the sewage draining port or the constant volume port to control the starting and switching of each mode.

In this embodiment, still include siphon 8, the siphon passageway is vertical passageway, the siphon passes in the siphon passageway from siphon passageway lower extreme, siphon upper end keeps the settlement distance as siphon trigger point and siphon passageway upper end, form siphon runner 9 between 8 outer walls of siphon and the siphon passageway 4 inner wall, sealed cooperation between siphon and the siphon passageway 4 lower port.

As shown in fig. 4, the distance between the upper end of the siphon tube and the upper end of the siphon channel can be determined according to practical working conditions, the siphon tube is a vertical round tube, the outer circle of the siphon tube and the lower port of the siphon channel are sealed by a sealing ring, and the siphon tube and the siphon channel are coaxially arranged; the upper end position of the siphon pipe is a siphon trigger point of the siphon channel, and when the liquid level exceeds the upper end of the siphon pipe, liquid discharge is triggered; the solution entering the siphon channel can rise along with the rise of the liquid level in the detection body in the siphon flow channel, if the liquid level in the detection body is higher than a siphon trigger point, a drain outlet or a constant volume port is opened at the moment, the liquid in the siphon flow channel flows into the siphon pipe through the upper end of the siphon pipe and is discharged, and the siphon effect is triggered at the moment; through the setting of this structure, the siphon trigger point of siphon passageway has been confirmed naturally to make the siphon trigger point be located the top of siphon passageway almost, the advantage of the vertical passageway of make full use of siphon passageway does benefit to the size that reduces siphon passageway, and this structure also makes the hookup location of common passage and siphon passageway, the hookup location of blowdown passageway and siphon passageway and the hookup location of constant volume passageway and siphon passageway can not influence the siphon trigger point, the spatial layout of each passageway of being convenient for.

In this embodiment, the detection body is provided with a common channel 10, the common channel is directly communicated with the siphon channel 4, the sewage channel 3 and the constant volume channel 6 are directly communicated with the common channel 10, and the highest point of the common channel is lower than a siphon trigger point of the siphon channel.

Sewage pipes 3 and constant volume passageway 6 communicate with siphon passageway 4 indirectly through shared channel 10, the position that sewage pipes 3 and siphon passageway 4 are connected this moment and the position coincidence that constant volume passageway 6 and siphon passageway 4 are connected, shared channel 10 and siphon passageway 4 are connected the position that sewage pipes 3 and siphon passageway 4 are connected promptly and constant volume passageway 6 and siphon passageway 4 are connected the position, combine the figure shown, shared channel slant is seted up, constant volume passageway and sewage pipes conform to the setting and are connected with shared channel, do benefit to the offering of each passageway and also do benefit to the spatial layout of each passageway simultaneously.

In this embodiment, the upper end of the detecting body 1 is open, the upper end of the detecting body is sealed and provided with a sample injection cover 11, and the sample injection cover is provided with a sample injection port 12. As shown in the figure 1, the sample injection cover is sealed at the upper end of the detection body, the sample injection cover is connected with the detection body through bolts or clamping, a sealing ring can be arranged between the sample injection cover and the inner wall of the detection body to realize sealing, and a sample injection port is formed in the upper end of the sample injection cover and is used for being connected with an external liquid supply pipeline.

In this embodiment, the optical detection unit 13 and the optical emission unit 14 are horizontally disposed opposite to each other on the opposite side walls of the detecting body 1. Referring to fig. 1, the optical detection unit 13 is located on the left sidewall of the detection body, the optical emission unit 14 is located on the right sidewall of the detection body, and the optical detection unit 13 and the optical emission unit 14 are common components of a colorimetry detection analyzer, and may adopt an existing structure or be purchased directly, which is not described herein again;

in this embodiment, the stirring device 15 is provided at the bottom of the detecting body 1. Referring to fig. 1, a stirring chamber is provided at the bottom of the detecting body 1, and a magnetic stirring device is installed in the stirring chamber, however, the stirring device may also be an existing stirring blade, and a stirring shaft of the stirring blade penetrates through the bottom of the detecting body in a sealing manner to be in transmission fit with a motor, so that the solution in the detecting body can be stirred by the stirring device to achieve the purpose of rapid mixing reaction.

In this embodiment, the lowest part of the drain outlet 2 is lower than the lowest part of the inner cavity of the detection body. The bottom of the inner cavity of the detection body is of a horizontal structure, and the structure is favorable for completely discharging the solution in the detection body.

Referring to fig. 5 to 7, when the drain mode is used, a solution is initially injected into the test body, as shown in fig. 6, when the solution is higher than the siphon trigger point, the drain outlet or the drain channel is opened, and the solution is discharged through the drain outlet 2, the drain channel 3, the common channel 10, the siphon flow channel 9 and the siphon tube 8, and is completely discharged as shown in fig. 7;

referring to fig. 8 and 10, when the constant volume mode is adopted, a solution is initially injected into the detection body, as shown in fig. 9, when the solution height is higher than the siphon trigger point, the constant volume port or the constant volume channel is opened, at this time, the solution is discharged through the constant volume port 5, the constant volume channel 6, the common channel 10, the siphon flow channel 9 and the siphon tube 8, and at this time, the solution level is fixed at the lowest position of the constant volume port as shown in fig. 10;

the detection device realizes constant volume and emptying by utilizing a siphon principle without externally arranging a liquid discharge pump, so that the corrosion of the solution and particle impurities are not limited, the automatic emptying of the liquid in the detector can be realized, the influence of the solution impurities on pollution discharge can be eliminated even by adjusting the diameter weakening of each channel, and the efficient and reliable pollution discharge process is ensured; the detection device cancels a liquid discharge pump, so that the failure rate of the detection device can be reduced, and the reliability of the product is greatly improved; the structure can also realize the automatic constant volume function, quickly fix the volume and improve the detection efficiency; the automatic blowdown mode and the constant volume mode of the detector can be switched by switching the opening and closing of the blowdown port and the constant volume port, and the use is convenient; the whole device cancels outsourcing parts such as an overflow cup module workpiece, a pinch valve, a liquid diaphragm pump and the like in the existing detection device, and effectively reduces the cost of the whole detection device.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a from blowdown constant volume detector which characterized in that: including detecting the body, setting up the drain on detecting the body and setting up sewage channel and siphon passageway on detecting the body, drain and detection body inner chamber bottommost intercommunication, the drain passes through sewage channel and siphon passageway intercommunication, the siphon trigger point of siphon passageway is higher than the drain and is higher than the peak of siphon passageway.

2. A self-draining volumetric detector as defined in claim 1 wherein: the detection body is further provided with a constant volume port and a constant volume channel, the constant volume port is communicated with the inner cavity of the detection body, the constant volume port is higher than the drain outlet, the constant volume port is communicated with the siphon channel through the constant volume channel, and the siphon trigger point of the siphon channel is higher than the constant volume port and higher than the highest point of the constant volume channel.

3. A self-draining volumetric detector as defined in claim 2 wherein: the valve body is arranged on the detection body and used for controlling the opening and closing of the constant volume channel and the sewage draining channel.

4. A self-draining volumetric detector as defined in claim 2 wherein: still include the siphon, the siphon passageway is vertical passageway, the siphon passes in the siphon passageway from siphon passageway lower extreme, siphon upper end keeps setting for the distance as siphon trigger point and siphon passageway upper end, form the siphon runner between siphon outer wall and the siphon passageway inner wall, sealed cooperation between siphon and the siphon passageway lower port.

5. A self-draining volumetric detector as defined in claim 2 wherein: the detecting body is provided with a common channel, the common channel is directly communicated with the siphon channel, the blowdown channel and the constant volume channel are directly communicated with the common channel, and the highest point of the common channel is lower than a siphon trigger point of the siphon channel.

6. A self-draining volumetric detector as defined in claim 1 wherein: the upper end opening of the detection body, the upper end sealing cover of the detection body is provided with a sample injection cover, and the sample injection cover is provided with a sample injection port.

7. A self-draining volumetric detector as defined in claim 1 wherein: the bottom of the detection body is provided with a stirring device.

8. A self-draining volumetric detector as defined in claim 1 wherein: the lowest position of the sewage outlet is lower than the lowest position of the inner cavity of the detection body.