CN209858319U

CN209858319U - High-precision sealing digestion device

Info

Publication number: CN209858319U
Application number: CN201822047685.1U
Authority: CN
Inventors: 阳君
Original assignee: Nanjing Hongguang Environmental Technology Co Ltd
Current assignee: Nanjing Hongguang Environmental Technology Co Ltd
Priority date: 2018-12-07
Filing date: 2018-12-07
Publication date: 2019-12-27
Anticipated expiration: 2028-12-07

Abstract

The utility model discloses a sealed digestion device of high accuracy, include the casing, be fixed in the photoreceiver and the light emitter of casing both sides, set up at the inboard pipe of clearing up of casing to and through the connecting pipe with clear up the solenoid valve of pipe intercommunication, the solenoid valve sets up in the inboard of casing. The utility model discloses establish the casing inside with the solenoid valve, reduce the connecting pipe and clear up the length of pipe, the overwhelming majority solution is located same region and heats, therefore reaction temperature is more even, does not have the complete solution interference of unreacted, and the precision is higher.

Description

High-precision sealing digestion device

Technical Field

The utility model belongs to a digestion device, especially a high accuracy seals digestion device.

Background

The digestion device is an important analysis component and has important application in scientific research, industrial production and environmental monitoring. The existing digestion devices are various and basically identical in structure/principle, and along with the increasing requirement on the accuracy of monitoring data, the existing digestion devices cannot meet the requirements of customers, and the structure and the function of the existing digestion devices need to be improved, so that the precision of detection and analysis is improved.

As shown in fig. 1 and 2, the conventional digester mainly includes a peristaltic pump a, a fluid meter b, a multi-way sample valve c, a first solenoid valve d, and a digester e. The digestion device is a square heat-insulating frame body, and the digestion tube is arranged in the digestion device. This has been described in detail in the applicant's patents CN205826677 and CN 205826398.

In use, it has been found that the precision of the above-mentioned products is not high enough and, in many cases, does not meet the requirements. The applicant analyzes the reason, mainly that the electromagnetic valve is arranged outside the shell and is communicated with the digestion pipe through the connecting pipe, so that the length of the digestion pipe is too long, part of liquid is positioned at the top of the digestion pipe, the temperature is insufficient, the reaction degree is different, and the detected parameters are not accurate enough and cannot completely react and digest the actual situation.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the novel sealing digestion device is provided to solve the problem that the existing digestion device is not high in precision.

The technical scheme is as follows: the utility model provides a sealed digestion device of high accuracy, includes the casing, is fixed in photoreceiver and the light emitter of casing both sides, set up the inboard pipe of clearing up at the casing to and through connecting pipe and the solenoid valve of clearing up the pipe intercommunication, the solenoid valve sets up in the inboard of casing.

In a further embodiment, a solenoid valve mounting location is provided inside the housing, at which the solenoid valve is fixed.

In a further embodiment, the housing is provided with a through hole, and the communication pipe passes through the through hole and extends to the outside of the housing.

Has the advantages that: the utility model discloses establish the casing inside with the solenoid valve, reduce the connecting pipe and clear up the length of pipe, the overwhelming majority solution is located same region and heats, therefore reaction temperature is more even, does not have the complete solution interference of unreacted, and the precision is higher.

Drawings

Fig. 1 is a schematic view of a prior art structure.

Fig. 2 is a schematic structural view of a conventional digester shell.

Fig. 3 is a schematic structural diagram of the present invention.

Fig. 4 is a schematic structural diagram of another embodiment of the present invention.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

These details include: the main components of the electromagnetic valve comprise a valve body, a sealing component and a control component, wherein a flow passage for liquid circulation is formed in the valve body, the sealing component is used for sealing the flow passage, and the control component is used for controlling the state of the sealing component. Under the action of the control part, the sealing part can move in the valve body to seal the flow passage or connect the flow passage. Generally, an electromagnetic control means may be employed to control the state of motion of the sealing means. For example, the sealing member is fitted with a spring, the other end of the spring abuts against the iron core, and when the electromagnetic unit is energized and the iron core is lifted up, the spring moves, so that the pressure on the sealing member is reduced and the liquid flows. When the iron core moves towards the direction of the sealing component, the sealing component is in close contact with the valve seat on the valve body, the communication between the flow channels is cut off, and the electromagnetic valve is closed.

The sealing component is mainly divided into three parts which are integrally formed, namely a conical ejector pin part, an annular bulge and a cylindrical ejector pin. The conical thimble is matched with the conical or truncated cone-shaped concave part, and when the conical thimble moves towards the concave part, a fan-shaped surface is formed. The cylindrical mandril can be sleeved with the spring, and the sealing part moves towards or away from the concave part under the control of the electromagnetic control part, so that the flow passage is disconnected or connected. The truncated cone shaped protrusion is a flexible fluoro material such as tetrafluoro material. The conical thimble is a rigid fluorine material, such as a trifluoro material. When the thimble impacts the protrusion, a certain recoverable deformation is formed between the thimble and the protrusion, so that damage caused by collision of a rigid object is avoided. If there is small-grained impurity between the two, through elastic deformation, sealed effect is better, also can damage resistance simultaneously, prolongs the life of solenoid valve.

As shown in fig. 3, the high-precision sealed digestion device comprises a shell 2, a light receiver and a light emitter fixed on two sides of the shell, a digestion tube 4 arranged on the inner side of the shell, and electromagnetic valves 1 and 3 communicated with the digestion tube through connecting tubes, wherein the electromagnetic valves are arranged on the inner side of the shell. The inner side of the shell is provided with an electromagnetic valve installation position, and the electromagnetic valve is fixed at the installation position. The shell is provided with a through hole, and the communicating pipe penetrates through the through hole and extends to the outer side of the shell.

In the prior art products and patents of the applicant, the solenoid valve is disposed outside the housing, so that the digestion tube has a certain length, or is connected to the solenoid valve through a connecting tube, and in this part, there is a part of the residual or evaporated solution, which is not digested due to the low temperature, and thus the reaction accuracy is affected. And this application has reduced the length of clearing up the pipe end through the solenoid valve setting inside the casing, consequently has improved the precision.

In the embodiment shown in fig. 4, the photoemitter and the photoreceiver are fixed inside the casing, not outside. Because the shell is closed when in work, the temperature in the shell can be stably controlled, the fluctuation of the temperature is reduced, and the fluctuation of the data measured by the photoelectric transceiver is further reduced, so that stable and more accurate data can be obtained.

Claims

1. A high-precision sealing digestion device comprises a shell, a light receiver and a light emitter which are fixed on two sides of the shell, a digestion tube arranged on the inner side of the shell, and an electromagnetic valve communicated with the digestion tube through a connecting tube,

the electromagnetic valve is arranged on the inner side of the shell;

an electromagnetic valve mounting position is arranged on the inner side of the shell, and the electromagnetic valve is fixed at the mounting position;

the shell is provided with a through hole, and the connecting pipe penetrates through the through hole and extends to the outer side of the shell.