A dual channel blow dry device for blow drying internal tubing of an exhalation occlusion valve
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN TUNGWAH HOSPITAL
- Filing Date
- 2025-08-25
- Publication Date
- 2026-08-07
AI Technical Summary
然而，无论是自然风干，还是干燥箱风干，呼气封闭盒的干燥速度都比较慢，干燥效率低，并且由于呼气封闭盒之内具有较为弯曲和封闭的呼气管路，这两种干燥方式往往不能彻底地干燥呼气封闭盒的内部呼气管路
[0011]本技术方案的有益效果是：本实用新型在使用时，将进气管第一接头与气源接口相连接，将第一波纹加热管与一个呼气封闭盒的进气口相连接，将第二波纹加热管与另一个呼气封闭盒的进气口相连接，然后打开气体流量调节阀并调节好气体流量，气源的气体就能够依次经进气管、三通接头、第一输气管和第一波纹加管后进入一个呼气封闭盒之内并对该呼气封闭盒之内的呼气管路进行吹干处理，或者依次经进气管、三通接头、第二输气管和第二波纹加管后进入另一个呼气封闭盒之内并对该呼气封闭盒之内的呼气管路进行吹干处理，在此过程中，第一波纹加管和第二波纹加管能够对气体进行加热（加热温度不超过70℃），以加速干燥呼气封闭盒之内的呼气管路。本实用新型采用向呼气封闭盒之内的呼气管路吹加热气体的方式，能够快速和彻底地干燥呼气封闭盒，一般干燥时间在20分钟以内，并且具有两个吹气通道，一次能同时干燥两个呼气封闭盒，干燥效率更高。与此同时，吹干装置只对呼气封闭盒内部管路吹气，不对呼气封闭盒的电路板以及外壳吹气，不会对电路板造成不利影响。
Smart Images
Figure CN224608105U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drying device technology, and in particular to a dual-channel drying device for drying the internal tubing of an exhalation sealing box. Background Technology
[0002] Ventilators are widely used medical devices in hospitals. The inspiratory circuit of a ventilator contains a removable, sealed expiratory seal box. This box is typically located downstream of the expiratory valve or expiratory flow sensor, adjacent to the expiratory port, serving as the essential pathway for the patient's exhaled air to exit the breathing circuit and ultimately reach the waste gas line. During use, droplets, aerosols, secretions, and pathogens (bacteria, viruses) from the patient's exhaled air all pass through the expiratory seal box. Therefore, the expiratory seal box must undergo rigorous cleaning and disinfection after each use. After cleaning and disinfection, the expiratory seal box needs to be dried before use. Currently, there are two main methods for drying expiratory seal boxes: one is to place the box in a sterile room for natural air drying for 12-24 hours; the other is to place it in a drying oven at a temperature not exceeding 70°C for 1 hour. However, whether air-drying or oven drying, the drying speed of the exhalation seal box is relatively slow and the drying efficiency is low. Furthermore, because the exhalation seal box has a relatively curved and enclosed exhalation tube, these two drying methods often fail to thoroughly dry the internal exhalation tube. In addition, oven drying presents another problem: since the exhalation seal box contains a circuit board in addition to the exhalation tube, the heat inside the oven can easily damage the circuit board, potentially shortening the exhalation seal box's lifespan. Utility Model Content
[0003] The technical problem to be solved by this utility model is to address the shortcomings of the prior art by providing a dual-channel drying device for drying the internal tubing of an exhalation seal box. This drying device can quickly and thoroughly dry the exhalation seal box and has two blowing channels, which can dry two exhalation seal boxes at the same time, resulting in higher drying efficiency. At the same time, the drying device only blows air onto the internal tubing of the exhalation seal box and does not blow air onto the circuit board or the outer shell of the exhalation seal box, so as not to cause adverse effects on the circuit board.
[0004] To solve the above-mentioned technical problems, the first technical solution of this utility model is: a dual-channel drying device for drying the internal tubing of an exhalation seal box, comprising an air inlet pipe, a three-way connector, a first heating pipe, a first corrugated pipe, a second heating pipe, and a second corrugated pipe; the three-way connector includes an air inlet end, a first air outlet end, and a second air outlet end; a gas flow regulating valve is installed on the air inlet pipe, one end of the air inlet pipe is provided with a first connector for connecting to a gas source interface, and the other end of the air inlet pipe is connected to the air inlet end of the three-way connector; one end of the first heating pipe is connected to the first air outlet end of the three-way connector, and the other end of the first heating pipe is connected to one end of the first corrugated pipe, and the other end of the first corrugated pipe is provided with a second connector for connecting to the air inlet of the exhalation seal box; one end of the second heating pipe is connected to the second air outlet end of the three-way connector, and the other end of the second heating pipe is connected to one end of the second corrugated pipe, and the other end of the second corrugated pipe is provided with a third connector for connecting to the air inlet of the exhalation seal box.
[0005] The beneficial effects of this technical solution are as follows: When using this utility model, the first connector of the air inlet pipe is connected to the air source interface, the first corrugated pipe is connected to the air inlet of one exhalation sealing box, and the second corrugated pipe is connected to the air inlet of another exhalation sealing box. Then, the gas flow regulating valve is opened and the gas flow is adjusted. The gas from the air source can then enter one exhalation sealing box in sequence through the air inlet pipe, the three-way connector, the first heating pipe, and the first corrugated pipe, and dry the exhalation tubing inside the exhalation sealing box. Alternatively, the gas can enter another exhalation sealing box in sequence through the air inlet pipe, the three-way connector, the second heating pipe, and the second corrugated pipe, and dry the exhalation tubing inside the exhalation sealing box. During this process, the first heating pipe and the second heating pipe can heat the gas (heating temperature not exceeding 70°C) to accelerate the drying of the exhalation tubing inside the exhalation sealing box. This invention employs a method of blowing heated gas into the exhalation tubing inside the exhalation seal box, enabling rapid and thorough drying of the exhalation seal box. The drying time is typically within 20 minutes. Furthermore, it features two blowing channels, allowing for the simultaneous drying of two exhalation seal boxes, resulting in higher drying efficiency. Simultaneously, the drying device only blows air into the internal tubing of the exhalation seal box, avoiding blowing air onto the circuit board or outer casing, thus preventing any adverse effects on the circuit board.
[0006] In the above technical solution, a pressure gauge is installed on the intake pipe to display the gas pressure inside the intake pipe. By setting the pressure gauge, the gas pressure inside the intake pipe can be known in real time, providing a reference for gas flow regulation.
[0007] In the above technical solution, the first heating tube includes a first non-heating end and a first heating end. The first non-heating end is connected to the first air outlet of the three-way connector, and the first heating end is connected to one end of the first corrugated pipe. A first gas on / off valve is installed between the first non-heating end and the first heating end. The second heating tube includes a second non-heating end and a second heating end. The second non-heating end is connected to the second air outlet of the three-way connector, and the second heating end is connected to one end of the second corrugated pipe. A second gas on / off valve is installed between the second non-heating end and the second heating end. By setting the first gas on / off valve and the second gas on / off valve, the conduction of the first heating tube or the second heating tube can be controlled. Furthermore, this invention allows for drying only one exhalation sealing box at a time when either the first gas on / off valve or the second gas on / off valve is closed, making it flexible and convenient to use.
[0008] In the above technical solution, the first heating end of the first heating tube and the second heating end of the second heating tube respectively include a plastic structural layer, a heat insulation and reinforcement layer, and a heat-conducting layer from the outside to the inside. An electric heating wire is wound inside the heat-conducting layer. The plastic structural layer provides external structural support and protection for the first and second heating tubes, the heat insulation and reinforcement layer provides heat insulation and strength enhancement, the heat-conducting layer conducts heat to the gas inside the pipe, and the electric heating wire is used for heating.
[0009] In the above technical solution, the dual-channel drying device further includes a heating element power supply line, which includes a power plug, an AC / DC converter, a first DC line, and a second DC line. The power plug is connected to the AC input terminal of the AC / DC converter via a power cord, and the first and second DC lines are respectively connected to the DC output terminal of the AC / DC converter. One end of each of the first and second DC lines is equipped with a DC plug, and the first and second heating elements are respectively equipped with DC sockets that mate with the DC plugs. The DC sockets are electrically connected to the corresponding heating wires. After the power plug is connected to AC power, the AC power enters the AC / DC converter via the power cord. After transformation, rectification, and filtering by the AC / DC converter, it is converted into DC power of a set voltage, which then powers the first or second heating element via the first and second DC lines, respectively. A power switch is not required on the first heating element. Power can be supplied to or de-supply to the first heating element by connecting or disconnecting the first DC line. Similarly, a power switch is not required on the second heating element. Power can be supplied to or de-supply to the second heating element by connecting or disconnecting the second DC line.
[0010] To solve the above-mentioned technical problems, the second technical solution of this utility model is: a dual-channel drying device for drying the internal tubing of an exhalation seal box, comprising an air inlet pipe, a three-way connector, a first air supply pipe, a first corrugated heating pipe, a second air supply pipe, and a second corrugated heating pipe; the three-way connector includes an air inlet end, a first air outlet end, and a second air outlet end; a gas flow regulating valve is installed on the air inlet pipe, one end of the air inlet pipe is provided with a first connector for connecting to an air source interface, and the other end of the air inlet pipe is connected to the air inlet end of the three-way connector; one end of the first air supply pipe is connected to the first air outlet end of the three-way connector, and the other end of the first air supply pipe is connected to one end of the first corrugated heating pipe, and the other end of the first corrugated heating pipe is provided with a second connector for connecting to the air inlet of the exhalation seal box; one end of the second air supply pipe is connected to the second air outlet end of the three-way connector, and the other end of the second air supply pipe is connected to one end of the second corrugated heating pipe, and the other end of the second corrugated heating pipe is provided with a third connector for connecting to the air inlet of the exhalation seal box.
[0011] The beneficial effects of this technical solution are as follows: When using this utility model, the first connector of the air inlet pipe is connected to the air source interface, the first corrugated heating tube is connected to the air inlet of one exhalation sealing box, and the second corrugated heating tube is connected to the air inlet of another exhalation sealing box. Then, the gas flow regulating valve is opened and the gas flow is adjusted. The gas from the air source can then enter one exhalation sealing box in sequence through the air inlet pipe, the three-way connector, the first air supply pipe, and the first corrugated heating tube, and dry the exhalation tubing inside the exhalation sealing box. Alternatively, the gas can enter another exhalation sealing box in sequence through the air inlet pipe, the three-way connector, the second air supply pipe, and the second corrugated heating tube, and dry the exhalation tubing inside the exhalation sealing box. During this process, the first and second corrugated heating tubes can heat the gas (heating temperature not exceeding 70°C) to accelerate the drying of the exhalation tubing inside the exhalation sealing box. This invention employs a method of blowing heated gas into the exhalation tubing inside the exhalation seal box, enabling rapid and thorough drying of the exhalation seal box. The drying time is typically within 20 minutes. Furthermore, it features two blowing channels, allowing for the simultaneous drying of two exhalation seal boxes, resulting in higher drying efficiency. Simultaneously, the drying device only blows air into the internal tubing of the exhalation seal box, avoiding blowing air onto the circuit board or outer casing, thus preventing any adverse effects on the circuit board.
[0012] In the above technical solution, a pressure gauge is installed on the intake pipe to display the gas pressure inside the intake pipe. By setting the pressure gauge, the gas pressure inside the intake pipe can be known in real time, providing a reference for gas flow regulation.
[0013] In the above technical solution, a third gas on / off valve is installed on the first gas delivery pipe, and a fourth gas on / off valve is installed on the second gas delivery pipe. By setting the third and fourth gas on / off valves, the conduction of the first or second gas delivery pipe can be controlled, and this invention allows for drying only one exhalation sealing box at a time when either the third or fourth gas on / off valve is closed, making it flexible and convenient to use.
[0014] In the above technical solution, a spiral heating copper wire is arranged inside the tube wall of the first and second corrugated heating tubes. By heating the steel wire, the gas inside the first and second corrugated heating tubes can be heated, and the heating temperature does not exceed 70°C.
[0015] In the above technical solution, the dual-channel drying device further includes a heating element power supply line, which includes a power plug, an AC / DC converter, a first DC line, and a second DC line. The power plug is connected to the AC input terminal of the AC / DC converter via a power line, and the first and second DC lines are respectively connected to the DC output terminal of the AC / DC converter. One end of each of the first and second DC lines is equipped with a DC plug, and the first and second corrugated heating elements are respectively provided with DC sockets that mate with the DC plugs. The DC sockets are electrically connected to the corresponding heating copper wires. After the power plug is connected to AC power, the AC power enters the AC / DC converter via the power line. After transformation, rectification, and filtering by the AC / DC converter, it is converted into DC power of a set voltage, which then powers the first or second heating element via the first and second DC lines, respectively. No power switch needs to be installed on the first corrugated heating tube. Power can be supplied to or de-supplyed to the first corrugated heating tube by plugging or disconnecting the first DC line. No power switch needs to be installed on the second corrugated heating tube. Power can be supplied to or de-supplyed to the second corrugated heating tube by plugging or disconnecting the second DC line. Attached Figure Description
[0016] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present utility model.
[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the first heating end of the first heating tube and the second heating end of the second heating tube in Embodiment 1.
[0018] Figure 3 This is a schematic diagram of the dual-channel drying device connected to the exhalation sealing box in the first embodiment.
[0019] Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention.
[0020] Figure 5 This is a schematic diagram of the heating copper wire structure in Example 2.
[0021] Figure 6 This is a schematic diagram of the dual-channel drying device connected to the exhalation sealing box in the second embodiment. Detailed Implementation
[0022] The structural and working principles of this utility model will be further described in detail below with reference to the accompanying drawings. Example 1
[0023] like Figure 1 and Figure 3 As shown, this embodiment is a dual-channel drying device for drying the internal tubing of an exhalation seal box, including an inlet pipe 1, a three-way connector 2, a first heating pipe 3, a first corrugated pipe 4, a second heating pipe 5, and a second corrugated pipe 6; the three-way connector 2 includes an inlet end 21, a first outlet end 22, and a second outlet end 23; a gas flow regulating valve 11 is installed on the inlet pipe 1, one end of the inlet pipe 1 is provided with a first connector 12 for connecting to a gas source interface (not shown), and the other end of the inlet pipe 1 is connected to the inlet end 21 of the three-way connector 2; One end of the first heating tube 3 is connected to the first air outlet 22 of the three-way connector 2, and the other end of the first heating tube 3 is connected to one end of the first corrugated pipe 4. The other end of the first corrugated pipe 4 is provided with a second connector 41 for connecting to the air inlet 101 of the exhalation seal box 100. One end of the second heating tube 5 is connected to the second air outlet 23 of the three-way connector 2, and the other end of the second heating tube 5 is connected to one end of the second corrugated pipe 6. The other end of the second corrugated pipe 6 is provided with a third connector 61 for connecting to the air inlet 101 of the exhalation seal box 100. The air source interface is a hospital air source interface. The air source used in this solution refers to the air source of the equipment in the hospital ward. This air source is centrally supplied, has low cost, is convenient for medical staff to use, and is clean and pollution-free.
[0024] In use, the first connector 12 of the inlet pipe 1 is connected to the gas source interface, the first corrugated pipe 4 is connected to the air inlet of one exhalation sealing box, and the second corrugated pipe 6 is connected to the air inlet of another exhalation sealing box. Then, the gas flow regulating valve 11 is opened and the gas flow is adjusted. The gas from the gas source can then enter one exhalation sealing box in sequence through the inlet pipe 1, the three-way connector 2, the first heating pipe 3, and the first corrugated pipe 4, and dry the exhalation tubing inside the exhalation sealing box 100. Alternatively, the gas can enter another exhalation sealing box 100 in sequence through the inlet pipe 1, the three-way connector 2, the second heating pipe 5, and the second corrugated pipe 6, and dry the exhalation tubing inside the exhalation sealing box. During this process, the first heating pipe 3 and the second heating pipe 5 can heat the gas (heating temperature not exceeding 70°C) to accelerate the drying of the exhalation tubing inside the exhalation sealing box. This invention employs a method of blowing heated gas into the exhalation tubing within the exhalation seal box 100, enabling rapid and thorough drying of the exhalation seal box. The drying time is typically within 20 minutes. Furthermore, it features two blowing channels, allowing for the simultaneous drying of two exhalation seal boxes, resulting in higher drying efficiency. Simultaneously, the drying device only blows air into the internal tubing of the exhalation seal box, avoiding blowing air onto the circuit board or outer casing, thus preventing any adverse effects on the circuit board.
[0025] like Figure 1 and Figure 3 As shown, a pressure gauge 13 is installed on the intake pipe 1 to display the gas pressure inside the intake pipe 1. By setting the pressure gauge 13, the gas pressure inside the intake pipe 1 can be known in real time, providing a reference for gas flow regulation.
[0026] like Figure 1 and Figure 3As shown, the first heating tube 3 includes a first non-heating end 31 and a first heating end 32. The first non-heating end 31 is connected to the first gas outlet end 22 of the three-way connector 2, and the first heating end 32 is connected to one end of the first corrugated pipe 4. A first gas on / off valve 33 is installed between the first non-heating end 31 and the first heating end 32. The second heating tube 5 includes a second non-heating end 51 and a second heating end 52. The second non-heating end 51 is connected to the second gas outlet end 23 of the three-way connector 2, and the second heating end 52 is connected to one end of the second corrugated pipe 6. A second gas on / off valve 53 is installed between the second non-heating end 51 and the second heating end 52. By setting the first gas on / off valve 33 and the second gas on / off valve 53, the conduction of the first heating tube 3 or the second heating tube 5 can be controlled. Furthermore, when either the first gas on / off valve 33 or the second gas on / off valve 53 is closed, only one exhalation sealing box 100 can be dried at a time, making it flexible and convenient to use. When blowing air into a single exhalation sealing box 100, the gas flow regulating valve 11 can reduce the gas flow by half.
[0027] like Figure 2 As shown, the first heating end 32 of the first heating tube 3 and the second heating end 52 of the second heating tube 5 each include, from the outside to the inside, a plastic structural layer 34, a heat insulation and reinforcing layer 35, and a heat-conducting layer 36. A heating wire 37 is wound inside the heat-conducting layer 36. The plastic structural layer 34 provides external structural support and protection for the first heating tube 3 and the second heating tube 5. The heat insulation and reinforcing layer 35 provides heat insulation and strength enhancement. The heat-conducting layer 36 conducts heat to the gas inside the tube. The heating wire 37 is used for heating.
[0028] like Figure 1 and Figure 3As shown, the dual-channel drying device also includes a heating element power supply line 7. The heating element power supply line 7 includes a power plug 71, an AC / DC converter 72, a first DC line 73, and a second DC line 74. The power plug 71 is connected to the AC input terminal of the AC / DC converter 72 via a power cord. The first DC line 73 and the second DC line 74 are respectively connected to the DC output terminal of the AC / DC converter 72. One end of the first DC line 73 and the second DC line 74 is provided with a DC plug 75. The first heating element 3 and the second heating element 5 are respectively provided with DC sockets 76 that mate with the DC plugs 75. The DC sockets 76 are electrically connected to the corresponding heating wires 37. After the power plug 71 is plugged into the mains power, the AC power enters the AC / DC converter 72 via the power cord. After transformation, rectification, and filtering by the AC / DC converter 72, it is converted into DC power with a set safe voltage, and then supplies power to the first heating element 3 or the second heating element 5 via the first DC line 73 and the second DC line 74, respectively. A power switch may not be installed on the first heating tube 3. Power can be supplied to or de-supply to the first heating tube 3 by connecting or disconnecting the first DC line 73 to the first heating tube 3. Similarly, a power switch may not be installed on the second heating tube 5. Power can be supplied to or de-supply to the second heating tube 5 by connecting or disconnecting the second DC line 74 to the second heating tube 5. Example 2
[0029] like Figure 4 and Figure 6 As shown, this embodiment 2 is a dual-channel drying device for drying the internal tubing of an exhalation sealed box, including an inlet pipe 1, a three-way connector 2, a first air supply pipe 8, a first corrugated heating pipe 9, a second air supply pipe 10, and a second corrugated heating pipe 15; the three-way connector 2 includes an inlet end 21, a first outlet end 22, and a second outlet end 23; a gas flow regulating valve 11 is installed on the inlet pipe 1, one end of the inlet pipe 1 is provided with a first connector 12 for connecting to an air source interface (not shown), and the other end of the inlet pipe 1 is connected to the inlet end 21 of the three-way connector 2. One end of the first air supply pipe 8 is connected to the first outlet end 22 of the three-way connector 2, and the other end of the first air supply pipe 8 is connected to one end of the first corrugated heating pipe 9. The other end of the first corrugated heating pipe 9 is provided with a second connector 41 for connecting to the air inlet of the exhalation sealing box. One end of the second air supply pipe 10 is connected to the second outlet end 23 of the three-way connector 2, and the other end of the second air supply pipe 10 is connected to one end of the second corrugated heating pipe 15. The other end of the second corrugated heating pipe 15 is provided with a third connector 61 for connecting to the air inlet of the exhalation sealing box. The air source interface is the hospital's air source interface. The air source used in this solution refers to the air source connected to the equipment in the hospital ward. This air source is centrally supplied, has low cost, is convenient for medical staff to use, and is clean and pollution-free.
[0030] In use, the first connector 12 of the inlet pipe 1 is connected to the gas source interface, the first corrugated heating pipe 9 is connected to the air inlet 101 of one exhalation sealing box 100, and the second corrugated heating pipe 15 is connected to the air inlet 101 of another exhalation sealing box 100. Then, the gas flow regulating valve 11 is opened and the gas flow is adjusted. The gas from the gas source can then enter one exhalation sealing box in sequence through the inlet pipe 1, the three-way connector 2, the first gas delivery pipe 8, and the first corrugated heating pipe 9, and dry the exhalation tubing inside the exhalation sealing box 100. Alternatively, the gas can enter another exhalation sealing box 100 in sequence through the inlet pipe 1, the three-way connector 2, the second gas delivery pipe 10, and the second corrugated heating pipe 15, and dry the exhalation tubing inside the exhalation sealing box. During this process, the first corrugated heating pipe 9 and the second corrugated heating pipe 15 can heat the gas (heating temperature not exceeding 70°C) to accelerate the drying of the exhalation tubing inside the exhalation sealing box. This invention employs a method of blowing heated gas into the exhalation tubing within the exhalation seal box 100, enabling rapid and thorough drying of the exhalation seal box. The drying time is typically within 20 minutes. Furthermore, it features two blowing channels, allowing for the simultaneous drying of two exhalation seal boxes, resulting in higher drying efficiency. Simultaneously, the drying device only blows air into the internal tubing of the exhalation seal box, avoiding blowing air onto the circuit board or outer casing, thus preventing any adverse effects on the circuit board.
[0031] In use, the first connector of the inlet pipe is connected to the gas source interface, the first corrugated heating tube is connected to the air inlet of one exhalation sealing box, and the second corrugated heating tube is connected to the air inlet of another exhalation sealing box. Then, the gas flow regulating valve is opened and the gas flow is adjusted. The gas from the gas source can then enter one exhalation sealing box in sequence through the inlet pipe, the three-way connector, the first gas delivery pipe, and the first corrugated heating tube, and dry the exhalation tubing inside the exhalation sealing box. Alternatively, the gas can enter another exhalation sealing box in sequence through the inlet pipe, the three-way connector, the second gas delivery pipe, and the second corrugated heating tube, and dry the exhalation tubing inside the exhalation sealing box. During this process, the first and second corrugated heating tubes can heat the gas (heating temperature not exceeding 70°C) to accelerate the drying of the exhalation tubing inside the exhalation sealing box. This invention employs a method of blowing heated gas into the exhalation tubing within the exhalation seal box 100, enabling rapid and thorough drying of the exhalation seal box. The drying time is typically within 20 minutes. Furthermore, it features two blowing channels, allowing for the simultaneous drying of two exhalation seal boxes, resulting in higher drying efficiency. Simultaneously, the drying device only blows gas into the internal tubing of the exhalation seal box, avoiding blowing gas onto the circuit boards, sensors, or other precision electronic components, as well as the outer casing, thus preventing any adverse effects on these components.
[0032] like Figure 4 and Figure 6 As shown, a pressure gauge 13 is installed on the intake pipe 1 to display the gas pressure inside the intake pipe 1. By setting the pressure gauge 13, the gas pressure inside the intake pipe 1 can be known in real time, providing a reference for gas flow regulation.
[0033] like Figure 4 and Figure 6 As shown, a third gas on / off valve 81 is installed on the first gas delivery pipe 8, and a fourth gas on / off valve 101 is installed on the second gas delivery pipe 10. By setting the third and fourth gas on / off valves, the continuity of the first or second gas delivery pipe can be controlled. Furthermore, this invention allows for drying only one exhalation sealing box at a time when either the third or fourth gas on / off valve is closed, making it flexible and convenient to use.
[0034] like Figure 5 As shown, a spiral-shaped heating copper wire 91 is provided inside the tube wall of the first corrugated heating tube 9 and the second corrugated heating tube 15. By heating the steel wire 91, the gas inside the first corrugated heating tube 9 and the second corrugated heating tube 15 can be heated, and the heating temperature does not exceed 70°C.
[0035] like Figure 4 and Figure 6 As shown, the dual-channel drying device for drying the internal tubing of the exhalation box also includes a heating tube power supply line 7. The heating tube power supply line 7 includes a power plug 71, an AC / DC converter 72, a first DC line 73, and a second DC line 74. The power plug 71 is connected to the AC input terminal of the AC / DC converter 72 via a power cord. The first DC line 73 and the second DC line 74 are respectively connected to the DC output terminal of the AC / DC converter 72. One end of the first DC line 73 and the second DC line 74 are respectively provided with a DC plug 75. The first corrugated heating tube 9 and the second corrugated heating tube 15 are respectively provided with DC sockets 76 that are plugged into and cooperate with the DC plugs 75. The DC sockets 76 are electrically connected to the corresponding heating copper wires 91. A power switch may not be installed on the first corrugated heating tube 9. Power can be supplied to or de-supplyed to the first corrugated heating tube 9 by plugging or disconnecting the first DC line 73. Similarly, a power switch may not be installed on the second corrugated heating tube 15. Power can be supplied to or de-supplyed to the second corrugated heating tube 15 by plugging or disconnecting the second DC line 74.
[0036] The above description is merely a preferred embodiment of this utility model. Any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical solution of this utility model shall fall within the scope of the technical solution of this utility model.
Claims
1. A dual-channel drying device for drying the internal tubing of an exhalation seal box, characterized in that: The system includes an air inlet pipe (1), a three-way connector (2), a first heating pipe (3), a first corrugated pipe (4), a second heating pipe (5), and a second corrugated pipe (6); the three-way connector (2) includes an air inlet end (21), a first air outlet end (22), and a second air outlet end (23); a gas flow regulating valve (11) is installed on the air inlet pipe (1), one end of the air inlet pipe (1) is provided with a first connector (12) for connecting to a gas source interface, and the other end of the air inlet pipe (1) is connected to the air inlet end (21) of the three-way connector (2); one of the first heating pipes (3) One end is connected to the first outlet end (22) of the three-way connector (2), and the other end of the first heating tube (3) is connected to one end of the first corrugated tube (4). The other end of the first corrugated tube (4) is provided with a second connector (41) for connecting the air inlet of the exhalation sealing box; one end of the second heating tube (5) is connected to the second outlet end (23) of the three-way connector (2), and the other end of the second heating tube (5) is connected to one end of the second corrugated tube (6). The other end of the second corrugated tube (6) is provided with a third connector (61) for connecting the air inlet of the exhalation sealing box.
2. The dual-channel drying device for drying the internal tubing of an exhalation sealing box according to claim 1, characterized in that: A pressure gauge (13) for displaying the gas pressure inside the air intake pipe (1) is installed on the air intake pipe (1).
3. The dual-channel drying device for drying the internal tubing of an exhalation sealing box according to claim 1, characterized in that: The first heating tube (3) includes a first non-heating end (31) and a first heating end (32). The first non-heating end (31) is connected to the first gas outlet end (22) of the three-way connector (2). The first heating end (32) is connected to one end of the first corrugated pipe (4). A first gas on / off valve (33) is installed between the first non-heating end (31) and the first heating end (32). The second heating tube (5) includes a second non-heating end (51) and a second heating end (52). The second non-heating end (51) is connected to the second gas outlet end (23) of the three-way connector (2). The second heating end (52) is connected to one end of the second corrugated pipe (6). A second gas on / off valve (53) is installed between the second non-heating end (51) and the second heating end (52).
4. The dual-channel drying device for drying the internal tubing of an exhalation sealing box according to claim 3, characterized in that: The first heating end (32) of the first heating tube (3) and the second heating end (52) of the second heating tube (5) respectively include a plastic structure layer (34), a heat insulation reinforcement layer (35) and a heat-conducting layer (36) from the outside to the inside. The heat-conducting layer (36) is wrapped with an electric heating wire (37).
5. The dual-channel drying device for drying the internal tubing of an exhalation closure box according to claim 4, characterized in that: It also includes a heating tube power supply line (7), which includes a power plug (71), an AC / DC converter (72), a first DC line (73) and a second DC line (74). The power plug (71) is connected to the AC input terminal of the AC / DC converter (72) via a power line. The first DC line (73) and the second DC line (74) are respectively connected to the DC output terminal of the AC / DC converter (72). One end of the first DC line (73) and the second DC line (74) are respectively provided with a DC plug (75). The first heating tube (3) and the second heating tube (5) are respectively provided with DC sockets (76) that are plugged into and cooperate with the DC plugs (75). The DC sockets (76) are electrically connected to the corresponding heating wires (37).
6. A dual-channel drying device for drying the internal tubing of an exhalation seal box, characterized in that: The system includes an inlet pipe (1), a three-way connector (2), a first gas supply pipe (8), a first corrugated heating pipe (9), a second gas supply pipe (10), and a second corrugated heating pipe (15). The three-way connector (2) includes an inlet end (21), a first outlet end (22), and a second outlet end (23). A gas flow regulating valve (11) is installed on the inlet pipe (1). One end of the inlet pipe (1) is provided with a first connector (12) for connecting to a gas source interface, and the other end of the inlet pipe (1) is connected to the inlet end (21) of the three-way connector (2). One end of the first gas supply pipe (8) is connected to the third-way connector (25). The first outlet (22) of the connecting pipe (2) is connected to the first outlet (22), and the other end of the first air supply pipe (8) is connected to one end of the first corrugated heating pipe (9). The other end of the first corrugated heating pipe (9) is provided with a second connector (41) for connecting the air inlet of the exhalation sealing box; one end of the second air supply pipe (10) is connected to the second outlet (23) of the three-way connector (2), and the other end of the second air supply pipe (10) is connected to one end of the second corrugated heating pipe (15). The other end of the second corrugated heating pipe (15) is provided with a third connector (61) for connecting the air inlet of the exhalation sealing box.
7. The dual-channel drying device for drying the internal tubing of an exhalation seal box according to claim 6, characterized in that: A pressure gauge (13) for displaying the gas pressure inside the air intake pipe (1) is installed on the air intake pipe (1).
8. The dual-channel drying device for drying the internal tubing of an exhalation closure box according to claim 6, characterized in that: A third gas on / off valve (81) is installed on the first gas supply pipe (8), and a fourth gas on / off valve (101) is installed on the second gas supply pipe (10).
9. The dual-channel drying device for drying the internal tubing of an exhalation closure box according to claim 6, characterized in that: The first corrugated heating tube (9) and the second corrugated heating tube (15) are provided with a spiral heating copper wire (91) inside the tube wall.
10. The dual-channel drying device for drying the internal tubing of an exhalation closure box according to claim 9, characterized in that: It also includes a heating tube power supply line (7), which includes a power plug (71), an AC / DC converter (72), a first DC line (73) and a second DC line (74). The power plug (71) is connected to the AC input terminal of the AC / DC converter (72) through a power line. The first DC line (73) and the second DC line (74) are respectively connected to the DC output terminal of the AC / DC converter (72). One end of the first DC line (73) and the second DC line (74) are respectively provided with a DC plug (75). The first corrugated heating tube (9) and the second corrugated heating tube (15) are respectively provided with DC sockets (76) that are plugged into and cooperate with the DC plugs (75). The DC sockets (76) are electrically connected to the corresponding heating copper wires (91).