Water vapor filtering device and gas collecting equipment

Abstract

The utility model discloses a water vapor filtering device and gas collection equipment, comprising a cavity, the surface of which is provided with a gas inlet, a gas outlet and a water outlet, the gas inlet and the gas outlet are communicated on the cavity to form a gas channel, and the cavity is internally provided with a filtering structure; the drainage pipe is arranged in the cavity, one end of the drainage pipe is connected with a water outlet in the cavity, and the water outlet is sequentially connected with a one-way valve and a water pump through a water guide pipe; the drainage pipe is arranged in the cavity, then the water pump pumps out accumulated water in the cavity from the drainage pipe, the accumulated water in the cavity is pumped out in time, it is avoided that the accumulated water stays in the cavity all the time, and consequently an air channel is blocked, the accumulated water does not need to be poured out manually due to the fact that the water pump directly pumps out the accumulated water in the cavity, and manpower is saved. The one-way valve connected with the water guide pipe can prevent accumulated water from flowing back and prevent sampling gas in the cavity from flowing out of the drainage pipe.

Description

Technical Field

[0001] The utility model relates to the field of medical equipment, in particular to a water vapor filtering device and a gas collecting device. Background Art

[0002] In the medical field, gas collection devices are needed to collect gases, such as nitric oxide (NO) gas. However, the gas often contains excess water, so a water vapor filter is needed to filter the water in the gas before collection.

[0003] Conventional filter water cups have only two gas inlets and outlets, one inlet and one outlet. Users need to always pay attention to the water accumulation under the cover and manually pour out the water in the cup so that it can be emptied in time. If it is not emptied in time, the accumulated water will enter the gas path and block the sampling gas. In severe cases, it will damage the internal components of the equipment, and manual pouring is more labor-intensive. Utility Model Content

[0004] In order to overcome the disadvantages of the existing technology that requires users to always pay attention to the water accumulation under the lower cover, the water in the water cup must be manually poured out so that it can be emptied in time. If it is not emptied in time, the accumulated water will enter the air path and block the sampling gas, which may seriously damage the internal components of the equipment. In addition, manual pouring is more labor-intensive.

[0005] First aspect

[0006] The utility model provides a water vapor filtering device, comprising:

[0007] The cavity has an air inlet, an air outlet, and a water outlet on its surface. The air inlet and the air outlet are interconnected on the cavity to form an airway. A filtering structure is provided in the cavity.

[0008] The drain pipe is installed in the cavity and one end of the drain pipe is connected to the water outlet on the cavity. The water outlet is connected to a one-way valve and a water pump in sequence through a water guide pipe.

[0009] Optionally, the cavity includes an upper cover, a lower cover, and a tank body, the upper cover and the lower cover are detachably mounted on the upper and lower sides of the tank body, respectively, and the filtering structure is mounted in the tank body.

[0010] Optionally, a seal is provided between the upper cover and the trough body, and a seal is provided between the lower cover and the trough body.

[0011] Optionally, the filtering structure includes a bracket and filter cotton, the bracket is fixed in the tank body, and the filter cotton is arranged in the bracket.

[0012] Optionally, the bracket includes an upper filter plate and a lower filter plate, and the filter cotton is arranged between the upper filter plate and the lower filter plate.

[0013] Optionally, a seal is provided between the edge of the upper filter plate and the edge of the lower filter plate.

[0014] Optionally, the air outlet is connected to an air pump through an air guide tube.

[0015] Optionally, a gas sensor is also provided in the air duct.

[0016] Optionally, a snap fastener is provided on the trough body.

[0017] Second aspect

[0018] The utility model provides a gas collection device, comprising the water vapor filtering device described in the first aspect.

[0019] The beneficial effects of the utility model are as follows: an air inlet, an air outlet, and a water outlet are respectively provided on the surface of the cavity, the air inlet and the air outlet are interconnected in the cavity to form an airway, a filtering structure is provided in the cavity, a drain pipe is provided in the cavity, and one end of the drain pipe is connected to the water outlet, the water outlet is connected to a one-way valve and a water pump in sequence through a water guide pipe, the gas enters the cavity from the air inlet, the gas passes through the filtering structure in the cavity, the filtering structure filters the moisture in the gas to form accumulated water, the accumulated water drips from the filtering structure into the cavity, the accumulated water remains in the cavity, and the filtered gas passes through the cavity to the air outlet and is discharged from the air outlet , thereby completing the filtration of moisture in the gas, the water pump will pump out the accumulated water retained in the cavity, and the accumulated water will be pumped out from the drain pipe to the drain outlet and then to the water pipe, completing the discharge of the accumulated water from the cavity. By setting a drain pipe in the cavity, the water pump will then pump out the accumulated water in the cavity from the drain pipe, so that the accumulated water in the cavity can be pumped out in time to avoid the accumulated water staying in the cavity and causing gas path blockage. Since the water pump directly pumps out the accumulated water in the cavity, there is no need to manually pour out the accumulated water, which also saves manpower. The one-way valve connected to the water pipe can prevent the accumulated water from flowing back and prevent the sampled gas in the cavity from flowing out of the drain pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 are cross-sectional schematic views of some embodiments;

[0022] Figure 2 is a schematic diagram of the assembly of the cavity in some embodiments;

[0023] Figure 3 Schematic diagram of explosion of a wall in some embodiments.

[0024] Description of reference numerals:

[0025] 1. Cavity; 101. Air inlet; 102. Air outlet; 103. Water outlet; 2. Drain pipe; 201. One-way valve; 202. Water pump; 104. Upper cover; 105. Lower cover; 106. Tank body; 3. Filter structure; 301. Filter cotton; 302. Upper filter plate; 303. Lower filter plate; 107. Air pump; 108. Gas sensor; 109. Fastener; 110. Water pipe; 111. Air pipe. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technical personnel in this field without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the present invention can be combined interactively without conflicting with each other.

[0027] The present invention provides a water vapor filtration device for use in gas collection equipment. The device comprises: a cavity 1, with an air inlet 101, an air outlet 102, and a water outlet 103 provided on its surface. The air inlet 101 and the air outlet 102 communicate with each other on the cavity 1 to form an airway. A filtering structure 3 is provided within the cavity 1. A drain pipe 2 is installed within the cavity 1 and connected at one end to the water outlet 103 on the cavity 1. The water outlet 103 is connected in sequence to a one-way valve 201 and a water pump 202 via a conduit. The cavity 1 is used to allow gas to pass through and collect filtered water. The filtering structure 3 is used to filter water from the gas. The drain pipe 2 is used to drain the water from the cavity 1.

[0028] During implementation, an air inlet 101, an air outlet 102, and a water outlet 103 are respectively opened on the surface of the cavity 1. The air inlet 101 and the air outlet 102 are interconnected in the cavity 1 to form an airway. A filtering structure 3 is set in the cavity 1, and a drain pipe 2 is set in the cavity 1, and one end of the drain pipe 2 is connected to the water outlet 103. The water outlet 103 is connected to the one-way valve 201 and the water pump 202 in sequence through the water guide pipe 110. The gas enters the cavity 1 from the air inlet 101, and the gas passes through the filtering structure 3 in the cavity 1. The filtering structure 3 filters the moisture in the gas to form accumulated water. The accumulated water drips from the filtering structure 3 into the cavity 1, and the accumulated water remains in the cavity 1, and the filtered gas passes through the cavity 1 to the air outlet 102 and exits The air is discharged through the air outlet 102, thereby completing the filtration of moisture in the gas, and the water pump 202 pumps out the accumulated water retained in the cavity 1, and the accumulated water is pumped out from the drain pipe 2 to the drain outlet and then to the water pipe 110, completing the discharge of the accumulated water from the cavity 1. By setting a drain pipe 2 in the cavity 1, the water pump 202 pumps out the accumulated water in the cavity 1 from the drain pipe 2, so as to timely pump out the accumulated water in the cavity 1 and avoid the accumulated water staying in the cavity 1 and causing air path blockage. Since the water pump 202 directly pumps out the accumulated water in the cavity 1, there is no need to manually pour out the accumulated water, which also saves manpower. The one-way valve 201 connected to the water pipe 110 can prevent the accumulated water from flowing back and prevent the sampled gas in the cavity 1 from flowing out of the drain pipe 2.

[0029] Specifically, the filtering structure 3 includes filter cotton 301. The gas passes through the filter cotton 301, and the filter cotton 301 filters and absorbs the moisture in the gas, forming accumulated water and dripping into the cavity 1. The drain pipe 2 is a tubular structure extending inward from the water outlet 103 of the cavity 1. The drain pipe 2 and the cavity 1 are integrally formed. The drain pipe 2 is an L-shaped pipe. Reinforcing ribs are provided at the bend of the L-shaped pipe. The reinforcing ribs are used to improve the structural strength of the drain pipe 2. One end of the drain pipe 2 is connected to the water outlet 103, and the other end is close to the inner wall of the cavity 1. A plurality of openings are provided at the end of the drain pipe 2 close to the inner wall of the cavity 1 to facilitate the accumulated water in the cavity 1 to enter the drain pipe 2 more easily. A docking joint extends out of the cavity 1 at the air inlet 101, and the docking joint is used to dock an air blowing device.

[0030] In some cases, the drain pipe 2 may not be integrally formed with the cavity 1 , but may be separately installed in the cavity 1 , with one end of the drain pipe 2 detachably connected to the water outlet 103 .

[0031] In some embodiments, the cavity 1 includes an upper cover 104 , a lower cover 105 , and a trough body 106 . The upper cover 104 and the lower cover 105 are detachably mounted on the upper and lower sides of the trough body 106 , respectively, and the filtering structure 3 is mounted in the trough body 106 .

[0032] In implementation, the upper cover 104 is installed on the upper side of the groove body 106, and the lower cover 105 is installed on the lower side of the groove body 106. After installation, the upper cover 104, the lower cover 105 and the groove body 106 together form the cavity 1. The upper cover 104 and the lower cover 105 are detachably installed on the groove body 106, so that the upper cover 104 and the lower cover 105 can be easily removed and cleaned to keep them clean. In addition, a small amount of accumulated water in the drain pipe 2 can be drained, and the filter structure 3 in the groove body 106 can be easily replaced.

[0033] Further, the upper cover 104 has an air chamber, the lower cover 105 has an accumulated water chamber, and the groove body 106 has a filter chamber. The air chamber, the accumulated water chamber and the filter chamber together form a complete cavity. The air inlet 101, the air outlet 102 and the water outlet 103 are all arranged on the groove body 106. The filter structure 3 is arranged in the filter chamber of the groove body 106. The gas enters the filter chamber of the groove body 106 from the air inlet 101, and then enters the air chamber of the upper cover 104 after being filtered by the filter structure 3. Finally, the gas reaches the air outlet 102. The filter structure 3 forms accumulated water after filtering the moisture, and the accumulated water drops into the accumulated water chamber of the lower cover 105. The drain pipe 2 is arranged in the lower cover 105, and the accumulated water in the accumulated water chamber is drained from the drain pipe 2 to the water outlet 103. The groove body 106 is provided with a clamping groove, and the upper cover 104 is provided with a buckle. The upper cover 104 is connected by being clamped into the clamping groove of the groove body 106 through the buckle. The lower cover 105 is also provided with a buckle, and the lower cover 105 is fixed on the lower side of the groove body 106 through the buckle.

[0034] In some cases, the upper side of the groove body 106 can be provided with internal threads, and the outer wall of the upper cover 104 is provided with external threads. The external threads of the upper cover 104 and the internal threads of the upper side of the groove body 106 are matched and fixed. Similarly, the lower side of the groove body 106 can be provided with internal threads, and the outer wall of the lower cover 105 is provided with external threads. The external threads of the lower cover 105 and the internal threads of the lower side of the groove body 106 are matched and fixed.

[0035] In some embodiments, a sealing member is arranged between the upper cover 104 and the groove body 106, and a sealing member is arranged between the lower cover 105 and the groove body 106.

[0036] In implementation, the sealing members arranged between the upper cover 104 and the groove body 106 and between the lower cover 105 and the groove body 106 ensure the airtightness of the cavity 1, so as to prevent the gas from flowing out from between the upper cover 104 and the groove body 106 or from flowing out from between the lower cover 105 and the groove body 106.

[0037] Furthermore, an annular receiving groove is provided on the outer wall of the upper cover 104, and the sealing member is a sealing ring, which is located in the receiving groove of the upper cover 104. An annular receiving groove is also provided on the outer wall of the lower cover 105, and the sealing member is a sealing ring, which is located in the annular receiving groove of the lower cover 105.

[0038] In some embodiments, the filter structure 3 includes a bracket and filter cotton 301 , the bracket is fixed in the tank body 106 , and the filter cotton 301 is arranged in the bracket.

[0039] During implementation, the bracket is fixed in the tank body 106, and then the filter cotton 301 is placed on the bracket. The bracket is used to support the filter cotton 301, and the filter cotton 301 is used to filter out moisture in the gas.

[0040] In some embodiments, the bracket includes an upper filter plate 302 and a lower filter plate 303 , and the filter cotton 301 is arranged between the upper filter plate 302 and the lower filter plate 303 .

[0041] During implementation, the lower filter plate 303 is installed in the trough body 106 and then the filter cotton 301 is placed on the lower filter plate 303, and then the upper filter plate 302 is installed in the trough body 106. The upper filter plate 302 and the lower filter plate 303 jointly limit the position of the filter cotton 301 in the trough body 106, so that the filter cotton 301 is fixed in the trough body 106.

[0042] Furthermore, the upper filter plate 302 and the lower filter plate 303 are surrounded by fan-shaped holes. The air inlet 101 is located below the lower filter plate 303 in the tank body 106, and the air outlet 102 is located above the upper filter plate 302 in the tank body 106. The gas enters the tank body 106 through the air inlet 101, then flows through the filter cotton 301 through the fan-shaped holes of the lower filter plate 303, and then flows out of the fan-shaped holes of the upper filter plate 302 to the air outlet 102, completing the gas filtration.

[0043] In some embodiments, a seal is provided between an edge of the upper filter plate 302 and an edge of the lower filter plate 303 .

[0044] During implementation, a seal is set between the edge of the upper filter plate 302 and the edge of the lower filter plate 303 to improve the airtightness between the upper filter plates 302 and the upper filter plates 302 and prevent gas from flowing through the edge of the upper filter plate 302 or the edge of the lower filter plate 303.

[0045] Furthermore, an annular flange is provided at the bottom of the upper filter plate 302, and an annular flange is provided at the top of the lower filter plate 303. The edge area of ​​the annular flange of the upper filter plate 302 is smaller than the edge area of ​​the annular flange of the lower filter plate 303. The annular flange of the lower filter plate 303 is located outside the annular flange of the upper filter plate 302 to form a chamber. The filter cotton 301 is located in the chamber to further limit the position of the filter cotton 301. The sealing member is a sealing ring, and a sealing ring is sleeved on the periphery of the annular flange of the lower filter plate 303.

[0046] In some embodiments, the air outlet 102 is connected to an air pump 107 via an air guide tube 111 .

[0047] During implementation, the air outlet 102 is connected to the air guide tube 111, and the expiration tube is connected to the air pump 107. The air pump 107 serves as a power source for gas flow, extracts the gas in the cavity 1 from the air outlet 102 and sends the gas to the gas collection device.

[0048] In some embodiments, the gas outlet is connected to a gas sensor 108 via an air guide tube 111 .

[0049] During implementation, the gas sensor converts the collected gas composition, concentration and other information into electrical signals, which are then displayed on the display device for data display.

[0050] In some embodiments, a latch 109 is provided on the slot 106 .

[0051] During implementation, a fastener 109 is installed on the slot body 106 , and the slot body 106 can be fixed by using the fastener 109 .

[0052] The present utility model further provides a gas collection device, which includes the water vapor filtering device described in the above embodiment. Since the structure of the water vapor filtering device has been described in detail in the above embodiment, it will not be repeated here.

[0053] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A water vapor filtering device, characterized in that: include: The cavity has an air inlet, an air outlet, and a water outlet on its surface. The air inlet and the air outlet are interconnected on the cavity to form an airway. A filtering structure is provided in the cavity. The drain pipe is installed in the cavity and one end of the drain pipe is connected to the water outlet on the cavity. The water outlet is connected to a one-way valve and a water pump in sequence through a water guide pipe.

2. The water vapor filtering device according to claim 1, characterized in that: The cavity comprises an upper cover, a lower cover and a tank body. The upper cover and the lower cover are detachably mounted on the upper and lower sides of the tank body respectively, and the filtering structure is mounted in the tank body.

3. The water vapor filtering device according to claim 2, characterized in that: A sealing member is provided between the upper cover and the trough body, and a sealing member is provided between the lower cover and the trough body.

4. The water vapor filtering device according to claim 2, characterized in that: The filtering structure includes a bracket and filter cotton. The bracket is fixed in the tank body, and the filter cotton is arranged in the bracket.

5. The water vapor filtering device according to claim 4, characterized in that: The bracket comprises an upper filter plate and a lower filter plate, and the filter cotton is arranged between the upper filter plate and the lower filter plate.

6. The water vapor filtering device according to claim 5, characterized in that: A sealing member is provided between the edge of the upper filter plate and the edge of the lower filter plate.

7. The water vapor filtering device according to claim 1, characterized in that: The air outlet is connected to an air pump through an air guide pipe.

8. The water vapor filtering device according to claim 1, characterized in that: The gas outlet is connected to a gas sensor through an air guide tube.

9. The water vapor filtering device according to claim 2, characterized in that: A snap fastener is provided on the trough body.

10. A gas collection device, characterized in that: The invention comprises the water vapor filtering device according to any one of claims 1 to 9.

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