Condensable gas exhaust device and ICP (Inductively Coupled Plasma) analyzer

Abstract

The utility model relates to the technical field of analytical instruments, in particular to an exhaust device for condensable gas and an ICP (Inductively Coupled Plasma) analyzer. The exhaust device capable of condensing the gas comprises a water collecting mechanism provided with a hollow cavity, a cooling mechanism provided with an opening and filled with a cooling medium, a gas inlet and a gas outlet, the cooling mechanism is located outside the water collecting mechanism and arranged along the outer wall of the water collecting mechanism, and the gas inlet and the gas outlet are both communicated with the hollow cavity of the water collecting mechanism. And the air inlet is lower than the air outlet. The exhaust device capable of condensing the gas can prevent condensate water from flowing back. The ICP analyzer comprises an analyzer body and an exhaust device capable of condensing gas, the analyzer body is provided with an exhaust hole, and the exhaust hole is communicated with the gas inlet. The ICP analyzer disclosed by the utility model can prevent condensate water from flowing back, so that the normal use of equipment and the service life of the instrument can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of analytical instruments, and more particularly to an exhaust device for condensable gas and an ICP analyzer. Background Art

[0002] An ICP (Inductively Coupled Plasma) analyzer is an instrument for atomic emission spectrometry. It primarily detects trace metal elements based on the characteristic radiation energy emitted when the outer electrons of gaseous atoms (or ions) in the sample material return from an excited state to a ground state through radiative transition. During use, the instrument requires very high temperatures to plasmatize the sample, and therefore must be equipped with a heat sink. This heat sink generates high-temperature gas containing water vapor. Current ICP analyzer exhaust devices are typically conventional linear exhaust pipes, which often result in condensed water flowing back into the ICP instrument during use, significantly impacting the normal use and life of the equipment. Utility Model Content

[0003] The purpose of the utility model is to solve the problem of condensed water backflow during the exhaust process of the ICP analyzer in the prior art, and to provide an exhaust device for condensable gas and an ICP analyzer, which can prevent the backflow of condensed water, thereby ensuring the normal use of the equipment and protecting the service life of the instrument.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] Provided is an exhaust device for condensable gas, comprising a water collecting mechanism provided with a hollow cavity, and a cooling mechanism provided with an opening and filled with a cooling medium, wherein the cooling mechanism is located outside the water collecting mechanism and arranged along the outer wall of the water collecting mechanism, and further comprising an air inlet and an exhaust port both connected to the hollow cavity of the water collecting mechanism, wherein the air inlet is arranged lower than the exhaust port.

[0006] The condensable gas exhaust device of the present invention is applied to the exhaust of an ICP analyzer. The high-temperature gas exhausted from the analyzer body enters the water collection mechanism through the air inlet. The cooling mechanism is used to provide cooling for the water collection mechanism, so that the high-temperature gas condenses when it is cold. After condensation, the liquid portion is concentrated in the water collection mechanism, while the gas portion is discharged from the exhaust port. This can prevent water from flowing back into the analyzer body, thereby ensuring the normal testing use of the equipment and protecting the service life of the instrument. Within the scope of knowledge of those skilled in the art, the condensable gas exhaust device of the present invention is also applicable to occasions other than ICP analyzers where it is necessary to condense high-temperature gas to prevent condensed water from flowing back.

[0007] Furthermore, the cooling mechanism is arranged along the circumference of the outer wall of the water collecting mechanism. The cooling mechanism arranged circumferentially can wrap the water collecting mechanism from the outside to a larger extent, thereby improving the cooling effect of the cooling zone.

[0008] Furthermore, a filter mechanism for absorbing water vapor is included. The filter mechanism is installed in the hollow cavity of the water collection mechanism and divides the hollow cavity into an exhaust area and a cooling area. The air inlet is located below the filter mechanism and communicates with the cooling area, and the exhaust port is located above the filter mechanism and communicates with the exhaust area. The filter mechanism can absorb water vapor contained in the passing air, completely drying the air before it is discharged, thereby further improving the effectiveness of preventing the backflow of condensed water.

[0009] Furthermore, the filtering mechanism is a filter screen, in which a sponge or a desiccant is placed. The filter screen has pores that can both allow the gas to be discharged smoothly and be used to place a water-absorbing medium. The sponge or the desiccant can be used as a water-absorbing medium to absorb water vapor in the gas.

[0010] Furthermore, the exhaust zone is located above the cooling zone, and the top of the cooling mechanism is located between the top of the filter mechanism and the air inlet. This arrangement not only enables the cooling zone at the bottom of the filter mechanism to have a better cooling effect, but also provides a certain distance between the top of the cooling mechanism and the air inlet passage, thereby preventing the high-temperature gas from being cooled prematurely before entering the cooling zone, thereby preventing the exhaust device for condensable gas from losing its function of preventing condensate from flowing back.

[0011] Furthermore, a drain outlet is provided at the bottom of the water collection mechanism, and a float is installed at the drain outlet to control its opening and closing. Using the float as the drain outlet's opening and closing control device allows the drain outlet to be opened intermittently, thereby improving the cooling effect and enabling the automatic discharge of condensed water after it accumulates to a certain level.

[0012] Furthermore, the opening of the cooling mechanism is provided at the top thereof, which can facilitate timely and convenient addition of cooling medium to the cooling mechanism, thereby ensuring cooling of the gas in the cooling zone and achieving the function of preventing backflow of condensed water.

[0013] The present invention also provides an ICP analyzer comprising an analyzer body and the aforementioned exhaust device for condensable gases, wherein the analyzer body is provided with an exhaust hole, the exhaust hole being in communication with the air inlet. In the ICP analyzer of the present invention, high-temperature gas enters the exhaust device through the exhaust hole and then cools, leaving liquid in a water collection mechanism, while the gas is discharged through the exhaust port, thereby preventing the backflow of condensed water during the exhaust process.

[0014] Furthermore, the apparatus further includes an exhaust duct, one end of which is connected to the exhaust hole and the other end of which is inserted into the water collecting mechanism. The air inlet is located at the end of the exhaust duct. The exhaust duct connects the exhaust hole and the air inlet, allowing high-temperature gas from the analyzer body to smoothly enter the water collecting mechanism for cooling before being discharged.

[0015] Furthermore, a sleeve is included, which is located at the exhaust hole and is sleeved outside the exhaust pipe. The sleeve is used to connect and fix the exhaust pipe to the exhaust port of the analyzer body to ensure the stability of the exhaust device and smooth exhaust.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The condensable gas exhaust device of the utility model is applied to the exhaust of an ICP analyzer, which can prevent water from flowing back into the analyzer body, thereby ensuring the normal use of the equipment and protecting the service life of the instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of an exhaust device for an ICP analyzer according to the present invention after installing an exhaust pipe and a sleeve;

[0019] Figure 2 This is a structural diagram of an ICP analyzer of the present utility model;

[0020] Figure 3 This is a schematic structural diagram of the analyzer body of the utility model.

[0021] The icon markings are explained as follows:

[0022] 1. Water collection mechanism; 11. Air inlet; 12. Exhaust port; 13. Drain port; 14. Exhaust area; 15. Cooling area; 2. Cooling mechanism; 3. Filter mechanism; 4. Float; 5. Analyzer body; 51. Exhaust hole; 6. Exhaust pipe; 7. Casing. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0024] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and so on indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] Example 1

[0026] like Figure 1 The figure shows the first embodiment of the exhaust device for condensable gas of the utility model, which includes a water collecting mechanism 1 with a hollow cavity and a cooling mechanism 2 with an opening. The cooling mechanism 2 is located outside the water collecting mechanism 1 and is arranged along the outer wall of the water collecting mechanism 1. It also includes an air inlet 11 and an exhaust port 12 both connected to the hollow cavity of the water collecting mechanism 1. The air inlet 11 is arranged lower than the exhaust port 12.

[0027] The exhaust device for condensable gas of the present invention is applied to the exhaust of ICP analyzer. The high-temperature gas exhausted from the analyzer body 5 enters the water collecting mechanism 1 from the air inlet 11. The cooling mechanism 2 is used to provide cooling for the water collecting mechanism 1, so that the high-temperature gas condenses when it encounters cold. After condensation, the liquid part is concentrated in the water collecting mechanism 1, and the gas part is discharged from the exhaust port 12. In this way, water can be prevented from flowing back to the analyzer body 5, thereby ensuring the normal test use of the equipment and protecting the service life of the instrument.

[0028] As one embodiment of the present invention, the cooling mechanism 2 is circumferentially arranged along the outer wall of the water collection mechanism 1. The circumferentially arranged cooling mechanism 2 can wrap the water collection mechanism 1 from the outside to a larger extent, thereby improving the cooling effect of the cooling zone 15. Wrapping the cooling mechanism 2 360 degrees around the outer wall of the water collection mechanism 1 can increase the contact area between the cooling mechanism 2 and the water collection mechanism 1, thereby improving the cooling effect. The cooling mechanism 2 can form a plurality of annular grooves and be sleeved on the outer wall of the water collection mechanism 1, or it can be sleeved as a whole on the outer wall of the water collection mechanism 1.

[0029] As an embodiment of the present invention, the opening of the cooling mechanism 2 is provided at the top thereof. The opening at the top can facilitate timely and convenient addition of cooling medium to the cooling mechanism 2, thereby ensuring that the gas in the water collecting mechanism 1 is cooled and realizing the function of preventing backflow of condensed water.

[0030] As one embodiment of the present invention, a filter mechanism 3 for absorbing water vapor is further included. The filter mechanism 3 is installed in the hollow cavity of the water collection mechanism 1 and divides the hollow cavity into an exhaust zone 14 and a cooling zone 15. The air inlet 11 is located below the filter mechanism 3 and communicates with the cooling zone 15, and the exhaust port 12 is located above the filter mechanism 3 and communicates with the exhaust zone 14. The high-temperature gas discharged from the analyzer body 5 enters the cooling zone 15 of the water collection mechanism 1 through the air inlet 11. The cooling zone 15 is cooled by the cooling mechanism 2, causing the high-temperature gas to condense when it is cooled. After condensation, the liquid portion is concentrated in the water collection mechanism 1, while the gas portion passes through the filter mechanism 3 and is discharged from the exhaust port 12 of the exhaust zone 14. The filter mechanism 3 absorbs water vapor contained in the passing gas, completely drying the gas before discharge. This prevents water from flowing back into the analyzer body 5, thereby ensuring normal testing and protecting the instrument's service life. In actual use, the high-temperature gas discharged from the analyzer body 5 passes through the exhaust zone 14 and the filter mechanism 3 before entering the cooling zone 15 for cooling. Within the knowledge of technical personnel in this field, the cooling effect can also be achieved by changing the cooling mechanism 2 to be set inside the water collection mechanism 1, but the cooling medium placed therein needs to be circulated externally, and the cooling medium that has been heated after heat transfer is cooled from the outside so that it returns to the cooling mechanism 2 and then heat is transferred to cool the gas. Such a setting will make the entire exhaust device more complicated.

[0031] In one embodiment of the present invention, the filter mechanism 3 is a filter screen, within which a sponge or desiccant is placed. The filter screen has pores that allow for smooth gas discharge and also accommodate a water-absorbing medium. Either the sponge or the desiccant can serve as a water-absorbing medium to absorb moisture from the gas. Preferably, the filter screen comprises at least two layers, with the sponge or desiccant placed between the two layers.

[0032] As an embodiment of the present invention, the cooling mechanism 2 is filled with a cooling medium in a solid or liquid state, or in a gaseous state. A solid cooling medium can extend its service life as a cooling medium. The solid cooling medium will become liquid only after absorbing heat, while a liquid cooling medium requires a process of heating through heat exchange. During the entire process, the high-temperature gas can be cooled better; therefore, its service life is more significant than that of a liquid cooling medium. A cooling effect can be achieved using a gaseous cooling medium. Preferably, the cooling medium is ice. At the beginning, the ice is located in the cooling mechanism 2, and after absorbing heat and melting, it enters the hollow cavity of the water collecting mechanism 1 from the bottom of the cooling mechanism 2.

[0033] As one embodiment of the present invention, a drain outlet 13 is provided at the bottom of the water collection mechanism 1, and a float 4 is provided at the drain outlet 13 for controlling the opening and closing of the drain outlet 13. Using the float 4 as the opening and closing control device for the drain outlet 13 allows the drain outlet 13 to have an intermittent opening function, thereby improving the cooling effect and realizing the function of automatically discharging condensate after accumulating to a certain level. Preferably, the bottom of the water collection mechanism 1 is a conical structure. After the high-temperature gas is cooled and converted into condensate, it accumulates downward at the bottom of the hollow cavity of the water collection mechanism 1. The drain outlet 13 is located at the very bottom of the conical structure. Under normal conditions, the float 4 blocks the drain outlet 13, preventing the condensate from flowing out. When the condensate accumulates to a certain amount, the float 4 floats up due to buoyancy, and the condensate is automatically discharged. The float 4 then re-blocks the drain outlet 13, and the remaining gas is discharged from the exhaust port 12 after the water vapor is removed by the filter mechanism 3, completing the discharge of the high-temperature gas from the ICP analyzer. The float 4 can automatically adjust the opening or closing of the exhaust port 12 according to the content of condensed water in the water collecting mechanism 1 to facilitate the discharge of condensed water. It is practical and convenient and does not require manual control.

[0034] In one embodiment of the present invention, exhaust zone 14 is located above cooling zone 15, and the top of cooling mechanism 2 is located between the top of filter mechanism 3 and air inlet 11. Exhaust port 12 is located at the top of exhaust zone 14, allowing high-temperature gas to pass through exhaust zone 14 and filter mechanism 3 before entering cooling zone 15. This arrangement, on the one hand, enables cooling zone 15 at the bottom of filter mechanism 3 to achieve a better cooling effect; on the other hand, the distance between the top of cooling mechanism 2 and the air inlet passage prevents the high-temperature gas from being cooled prematurely before entering cooling zone 15, which would otherwise prevent the exhaust device of the present invention from preventing condensate from flowing back.

[0035] As an embodiment of the present invention, the cooling mechanism 2 is not connected to the water collecting mechanism 1. With this arrangement, when the cooling medium is in liquid form, the liquid level of the cooling medium can be made higher to enhance the cooling effect.

[0036] Example 2

[0037] The following is the second embodiment of the exhaust device for condensable gas of the utility model. This embodiment is similar to the first embodiment, except that the bottom of the cooling mechanism 2 is connected to the cooling zone 15 of the water collecting mechanism 1. The bottom of the cooling mechanism 2 and the cooling zone 15 of the water collecting mechanism 1 are connected, which can facilitate the cooling medium to enter the water collecting mechanism 1, further improving the cooling effect. Moreover, the replacement of the cooling medium can also be controlled by the float 4. The cooling medium enters the water collecting mechanism 1 and mixes with the condensed water. After a certain period of heat exchange, the total amount of condensed water and cooling medium in the water collecting mechanism 1 reaches a certain amount, causing the float 4 to rise under the action of buoyancy and the drain 13 to open. At this time, the cooling medium and the condensed water are discharged together, and the float 4 drops, the drain 13 is closed, and cooling medium is added to the cooling mechanism 2 again for a new round of cooling.

[0038] Example 3

[0039] like Figure 2 and Figure 3 The figure shows an embodiment of an ICP analyzer of the present invention, which includes an analyzer body 5 and the exhaust device for condensable gas as described above. The analyzer body 5 is provided with an exhaust hole 51 , which is connected to the air inlet 11 .

[0040] In the ICP analyzer of the present invention, high-temperature gas enters the air inlet 11 of the exhaust device from the exhaust hole 51, and is then cooled. Liquid remains in the water collecting mechanism 1, and the gas is discharged after adsorbing water vapor through the filtering mechanism 3, which has the function of preventing condensed water from flowing back during the exhaust process.

[0041] As an embodiment of the present invention, it also includes an exhaust pipe 6, one end of which is connected to the exhaust hole 51, and the other end is inserted into the water collection mechanism 1. The exhaust pipe 6 passes through the exhaust area 14 and the filter mechanism 3 in sequence and is connected to the cooling area 15. The air inlet 11 is located at the end of the exhaust pipe 6. The exhaust pipe 6 connects the exhaust hole 51 and the air inlet 11, so that the high-temperature gas from the analyzer body 5 can smoothly enter the water collection mechanism 1 for cooling and then be discharged. Preferably, the connection position between the exhaust channel and the water collection mechanism 1 is located at the top of the exhaust area 14, and the exhaust pipe 6 is set downward, and the air inlet 11 is located at the lowest end of the exhaust pipe 6; in this way, the condensation of the high-temperature gas in the exhaust pipe 6 before entering the water collection mechanism 1 can be avoided as much as possible. Moreover, if condensation occurs in the exhaust pipe 6 located in the water collection mechanism 1, due to the effect of gravity, the condensed water will enter the exhaust hole 12 along the exhaust pipe 6 and accumulate in the water collection mechanism 1, and backflow will not occur.

[0042] As an embodiment of the present invention, a sleeve 7 is further included, which is located at the exhaust hole 51 and sleeved outside the exhaust pipe 6. The sleeve 7 is used to connect and fix the exhaust pipe 6 to the exhaust port 12 of the analyzer body 5 to ensure the stability of the exhaust device for smooth exhaust.

[0043] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A condensable gas exhaust device, comprising a water collecting mechanism (1) provided with a hollow cavity, and a cooling mechanism (2) provided with an opening and filled with a cooling medium, wherein the cooling mechanism (2) is located outside the water collecting mechanism (1) and is arranged along the outer wall of the water collecting mechanism (1), and further comprising an air inlet (11) and an exhaust port (12) both of which are connected to the hollow cavity of the water collecting mechanism (1), wherein the air inlet (11) is arranged lower than the exhaust port (12).

2. The exhaust device for condensable gases according to claim 1, characterized in that: The cooling mechanism (2) is arranged along the circumference of the outer wall of the water collecting mechanism (1).

3. The exhaust device for condensable gas according to claim 1 or 2, characterized in that: It also includes a filter mechanism (3) for absorbing water vapor, wherein the filter mechanism (3) is installed in the hollow cavity of the water collecting mechanism (1) and divides the hollow cavity into an exhaust area (14) and a cooling area (15), the air inlet (11) is located below the filter mechanism (3) and is connected to the cooling area (15), and the exhaust port (12) is located above the filter mechanism (3) and is connected to the exhaust area (14).

4. The exhaust device for condensable gases according to claim 3, characterized in that: The filtering mechanism (3) is a filter screen, and a sponge or a desiccant is placed in the filter screen.

5. The exhaust device for condensable gases according to claim 3, characterized in that: The exhaust zone (14) is located above the cooling zone (15), and the top of the cooling mechanism (2) is located between the top of the filtering mechanism (3) and the air inlet (11).

6. The exhaust device for condensable gases according to claim 1, wherein: A drainage outlet (13) is provided at the bottom of the water collection mechanism (1), and a floating ball (4) for controlling the opening and closing of the drainage outlet (13) is provided at the drainage outlet (13).

7. The exhaust device for condensable gases according to claim 6, characterized in that: The opening of the cooling mechanism (2) is arranged at the top thereof.

8. An ICP analyzer, characterized in that The invention comprises an analyzer body (5) and an exhaust device for condensable gas according to any one of claims 1 to 7, wherein the analyzer body (5) is provided with an exhaust hole (51), and the exhaust hole (51) is connected to the air inlet (11).

9. The ICP analyzer according to claim 8, characterized in that It also includes an exhaust pipe (6), one end of which is connected to the exhaust hole (51), and the other end of which is inserted into the water collecting mechanism (1), and the air inlet (11) is located at the end of the exhaust pipe (6).

10. The ICP analyzer according to claim 9, characterized in that It also includes a sleeve (7), which is located at the exhaust hole (51) and sleeved outside the exhaust pipe (6).

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