A high-temperature NMP gas detection system for safe lithium battery industry

Abstract

The present invention provides a high-temperature NMP gas detection system for lithium battery industry safety, including: a mounting plate 1, a horizontal pipeline 1 running through the mounting plate 1, a mounting plate 2 and a mounting plate 3 are respectively arranged at both ends of the horizontal pipeline 1, the mounting plate 2 is used to install a first NMP gas detection device, and the first NMP gas detection device is located in an environment containing NMP gas; a horizontal pipeline 2 runs through the mounting plate 2 and the mounting plate 3, and the horizontal pipeline 2 is used to pass a wire, and the horizontal pipeline 2 is located in the horizontal pipeline 1; a control box is detachably connected to the mounting plate 3, and the control box is located outside the environment containing NMP gas; an exhaust mechanism is connected to the horizontal pipeline 1; and the first NMP gas detection device is installed on the front side of the mounting plate 2 through a protective device. The present invention can realize NMP gas detection inside or outside a high temperature environment, and can protect the first NMP gas detection device.

Description

Technical Field

[0001] The present invention relates to the technical field of gas detection, and in particular to a high-temperature NMP gas detection system for safe use in the lithium battery industry. Background Art

[0002] N-Methylpyrrolidone (NMP) is a colorless, transparent liquid made from γ-butyrolactone and methylamine. It is widely used in lithium battery production.

[0003] In the manufacturing process of lithium battery electrodes, the solvent NMP in the coating machine slurry will form a gas after heating. NMP gas is toxic and harmful to the human body, and it may explode when mixed with air. In addition, the concentration of NMP has a certain effect on the adhesion of the electrode.

[0004] The volatilization rate of NMP on the surface electrode will directly affect the adhesion of the electrode, and the electrode with poor adhesion cannot be compacted; and if NMP is not removed in time, the excessively high NMP concentration inside the coating oven will also affect the adhesion of the coated electrode.

[0005] In the prior art, an NMP gas detection device is usually provided in a coating oven. The existing NMP gas detection device, such as the CN211603102U high temperature NMP gas detection device, has the following problems:

[0006] 1. NMP gas detection can only be performed by gas sensors located in high-temperature gas environments. If the gas sensors in high-temperature gas environments fail due to long-term exposure to high temperatures, NMP detection will not be possible.

[0007] 2. Lack of protective devices for gas sensors can easily affect the life of the NMP gas detection device. Summary of the invention

[0008] The present invention provides a high-temperature NMP gas detection system for safe use in the lithium battery industry, which is used to solve at least one of the technical problems raised by the above-mentioned background technology.

[0009] In order to solve the above technical problems, the present invention discloses a high-temperature NMP gas detection system for safety in the lithium battery industry, comprising:

[0010] Mounting plate one, horizontal pipeline one passes through mounting plate one, mounting plate two and mounting plate three are respectively arranged at both ends of horizontal pipeline one, mounting plate two is used to install a first NMP gas detection device, and the first NMP gas detection device is located in an environment containing NMP gas;

[0011] The horizontal pipe 2 penetrates the mounting plate 2 and the mounting plate 3, the horizontal pipe 2 is used for passing the wire, and the horizontal pipe 2 is located inside the horizontal pipe 1;

[0012] A control box is detachably connected to the mounting plate 3, and the control box is located outside the environment containing the NMP gas;

[0013] An exhaust mechanism is connected to the horizontal pipeline.

[0014] Preferably, the exhaust mechanism comprises:

[0015] A horizontal air inlet pipe, which passes through the horizontal pipeline 1 and is located on the right side behind the mounting plate 1;

[0016] The control shell is fixedly connected to the left side of the horizontal pipe 1, the vertical slide plate 1 is slidably connected to the control shell, the left end of the horizontal block is fixedly connected to the right side of the vertical slide plate 1, the right end of the horizontal block is fixedly connected to the sealing plate, the sealing plate is used to seal the left part of the horizontal air intake pipe, a through hole 1 is set in the middle of the horizontal block and passes through the front and back, the horizontal pipe 2 is located in the through hole 1, and a spring 1 is fixedly connected between the right side of the vertical slide plate 1 and the right inner wall of the control shell;

[0017] The fixed end of the left end of the horizontal electric telescopic rod is fixedly connected to the left inner wall of the control shell, and the right end of the horizontal electric telescopic rod is located on the left side of the vertical slide plate.

[0018] Preferably, one end of the horizontal pipeline one located outside the environment containing NMP gas is connected to the second gas NMP gas detection device or the NMP gas absorption device, the NMP gas absorption device and the control box are both connected to the base plate, and the front end of the control box is detachably connected to the mounting plate three.

[0019] Preferably, it also includes: a mounting block 1, a conductor 1 is arranged at the rear end of the mounting block 1, a conductor 2 is arranged at the left end of the vertical slide plate 1, and the conductor 1 is in contact and conductive with the conductor 2, so that the power supply supplies power to the alarm 1.

[0020] Preferably, it also includes: a protective device, the first NMP gas detection device is installed on the front side of the second mounting plate through the protective device, and the protective device includes:

[0021] The mounting seat has a front end fixedly connected to the rear end of the second mounting plate, a groove one is arranged in the middle of the front end of the mounting seat, and sealing components are symmetrically arranged on the left and right sides of the rear of the mounting seat, and the two sealing components seal the rear of the groove one;

[0022] The second horizontal electric telescopic rod is fixedly embedded in the front end of the first installation groove, and a connecting plate is arranged at the rear end of the vertical electric telescopic rod, and a first NMP gas detection device is connected to the rear side of the connecting plate.

[0023] Preferably, cavity one is symmetrically arranged on the left and right sides of groove one in the mounting seat, cavity one is connected to the rear of groove one through through hole two, cavity two is also arranged in the middle between cavity one and groove one, cavity two is connected to groove one, and the protective device further includes two groups of left-right symmetrical auxiliary components, and the auxiliary components on the left side include:

[0024] A slide plate is connected in the cavity 1 by sliding forward and backward, the rear end of the slide plate is connected to the rear end of the cavity 1 through a spring 2, an arc-shaped protrusion is arranged at the rear right side of the slide plate, a fixed horizontal rod 1 is arranged in the middle right side of the slide plate, a vertical rod 1 is integrally arranged at the rear right side of the horizontal rod 1, a sealing block is fixedly connected to the rear end of the vertical rod 1, the horizontal rod 1 is connected in the through hole 2 by sliding forward and backward, the sealing block is used to close the right side of the cavity 2, and the sealing block is fixedly connected to the telescopic section on the front side of the horizontal electric telescopic rod 2;

[0025] A horizontal rod 2 is fixedly connected to a vertical slide 2 at the right end. The vertical slide 2 is connected to the cavity 2 by sliding left and right. A spring 3 is connected between the left side of the vertical slide 2 and the inner wall of the cavity 2. The left end of the horizontal rod 2 is an arc surface, which contacts and cooperates with the arc-shaped protrusion. A cooling device is arranged at the right end of the vertical slide 2, and the cooling device is a cooling nozzle or a cooling fan.

[0026] Preferably, the NMP gas absorption device comprises:

[0027] A processing box, the upper end of which rotates and penetrates the vertical shaft, and a driving motor 1 for driving the vertical shaft to rotate is arranged at the upper end of the processing box;

[0028] The horizontal plate is connected to the upper inner wall of the processing box by sliding up and down. A plurality of vertical nozzles are arranged around the lower end of the horizontal plate. A plurality of nozzles are arranged at intervals up and down the vertical nozzles. The vertical shaft rotates through the transmission mechanism to drive the horizontal plate to rise and fall.

[0029] The gas outlet plate is fixedly connected to the lower end of the vertical shaft, and the gas outlet plate is connected to the second NMP gas inlet pipe;

[0030] The liquid tank is fixedly connected to the lower end of the processing tank, a filter screen is arranged in the liquid tank, the liquid tank is connected to a drain pipe, the drain pipe is connected to a vertical nozzle through a connecting pipe, the drain pipe is connected to a water pump, a drain port is arranged on the left side of the processing tank, a sealing block is connected to the drain port for sliding up and down, the upper end of the sealing block is fixedly connected to a lower end of a vertical nozzle through a vertical rod, and a temperature regulating device is arranged below the filter screen in the processing tank.

[0031] Preferably, the transmission mechanism includes: an arc-shaped slide groove arranged on the upper part of the vertical shaft and surrounding the circumference of the vertical shaft, a slide rod 1 is slidably connected in the arc-shaped slide groove, a slide rod 1 is connected to the upper part of the L-shaped rod, and the upper end of the horizontal plate is fixedly connected to the lower end of the L-shaped rod.

[0032] Preferably, it also includes: an air intake and processing device, the air intake and processing device includes:

[0033] A processing shell is fixedly connected to the left outer wall of the processing box, and the left side of the processing shell is fixedly connected to the air intake shell, the air intake shell is connected to the NMP gas inlet pipe 1, a groove 2 is arranged at the upper middle end of the left inner wall of the processing shell, a plurality of through holes 3 are arranged in the processing shell on the left side of the groove 2, the through hole 3 is connected to the air intake shell and the groove 2, the lower end of the through hole 3 is a left-low and right-high inclined surface, and a brush is embedded on the right side of the upper end of the through hole 3, the lifting block slides up and down and is connected in the groove 2, and a filter screen 2 corresponding to the through hole 3 is embedded in the lifting block, and the lifting block is driven to lift by a vertical electric telescopic rod, a plurality of through holes 4 are arranged on the right side of the groove 2 in the processing shell, and the through hole 4 is connected to the inside of the processing shell, and the upper part of the processing shell is connected with an exhaust pipe, and the exhaust pipe passes through the processing box and is connected to the gas outlet disk through the NMP gas inlet pipe 2, and the NMP gas inlet pipe 2 is a hose, an NMP gas absorption liquid nozzle is arranged in the processing shell, and the processing shell is connected to the liquid tank through the drain pipe 2, and the drain pipe 2 is provided with a solenoid valve.

[0034] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0036] Figure 1 It is a schematic diagram of a top view of the structure of a first embodiment of the present invention without an NMP gas absorption device;

[0037] Figure 2 For the present invention Figure 1 Rear view of the middle horizontal block;

[0038] Figure 3 for Figure 1 The structural diagram at A in the middle;

[0039] Figure 4 It is a schematic diagram of the top structure of a second embodiment of the present invention in which the NMP gas absorption device is not provided;

[0040] Figure 5 for Figure 4 An enlarged schematic diagram of the structure of the middle protection device;

[0041] Figure 6 A rear view schematic diagram of the first NMP gas absorption device of the present invention;

[0042] Figure 7 It is a rear structural schematic diagram of a second embodiment of the NMP gas absorption device of the present invention;

[0043] Figure 8 For the present invention Figure 7A partial enlarged view of point A in the middle.

[0044] In the figure: 1, mounting plate 1; 2, horizontal pipe 1; 3, mounting plate 2; 4, mounting plate 3; 5, first NMP gas detection device; 6, horizontal pipe 2; 7, control box; 8, horizontal block; 81, through hole 1; 9, horizontal air inlet pipe; 10, control shell; 11, vertical slide plate 1; 12, sealing plate; 13, horizontal electric telescopic rod 1; 14, mounting block 1; 15, conductor 1; 16, conductor 2; 17, protective device; 171, mounting seat; 172, groove 1; 173, sealing assembly; 174, horizontal electric telescopic rod 2; 175, connecting plate; 176, cavity 1; 177, cavity 2; 178, slide plate; 179, arc-shaped protrusion; 1710, horizontal rod 1; 1711, horizontal rod 2; 1712, vertical slide plate 2; 1713, cooling device; 1 714, vertical rod one; 1715, sealing block; 18, NMP gas absorption device; 181, treatment box; 182, vertical axis; 183, driving motor one; 184, horizontal plate; 185, vertical nozzle; 186, air outlet plate; 187, liquid box; 188, filter screen one; 189, drain pipe one; 1810, water pump one; 1811, drain port; 1812, sealing block; 1813, vertical rod two; 19, transmission mechanism; 191, arc slide; 192, 7-shaped rod; 193, slide rod one; 20, air intake and treatment device; 201, treatment shell; 202, air intake shell; 203, through hole three; 204, lifting block; 205, filter screen two; 206, vertical electric telescopic rod; 207, through hole four; 208, exhaust pipe; 21, bottom plate. DETAILED DESCRIPTION

[0045] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0046] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0047] The present invention provides the following embodiments

[0048] Example 1

[0049] The embodiment of the present invention provides a high temperature NMP gas detection system for safe use in the lithium battery industry. Figure 1-Figure 3 As shown, including:

[0050] Mounting plate 1, horizontal pipe 12 runs through mounting plate 1, mounting plate 2 3 and mounting plate 3 4 are respectively arranged at both ends of horizontal pipe 12, mounting plate 2 3 is used to install a first NMP gas detection device 5, and the first NMP gas detection device 5 is located in an environment containing NMP gas;

[0051] The horizontal pipe 2 6 penetrates through the mounting plate 2 3 and the mounting plate 3 4. The horizontal pipe 2 6 is used to pass the wire. The horizontal pipe 2 6 is located in the horizontal pipe 1 2;

[0052] A control box 7 is detachably connected to the mounting plate 3 4, and the control box 7 is located outside the environment containing the NMP gas;

[0053] The exhaust mechanism is connected to the horizontal pipe 2.

[0054] Preferably, the exhaust mechanism comprises:

[0055] A horizontal air inlet pipe 9, which passes through the horizontal pipeline 1-2 and is located on the right side behind the mounting plate 1;

[0056] The control housing 10 is fixedly connected to the left side of the horizontal pipe 2, the vertical slide plate 11 is slidably connected to the control housing 10, the left end of the horizontal block 8 is fixedly connected to the right side of the vertical slide plate 11, the right end of the horizontal block 8 is fixedly connected to the sealing plate 12, the sealing plate 12 is used to seal the left part of the horizontal air intake pipe 9, the middle part of the horizontal block 8 is provided with a through hole 81 that passes through the front and back, the horizontal pipe 26 is located in the through hole 81, and a spring 1 is fixedly connected between the right side of the vertical slide plate 11 and the right inner wall of the control housing 10;

[0057] The fixed end of the left end of the horizontal electric telescopic rod 13 is fixedly connected to the left inner wall of the control shell 10, and the right end of the horizontal electric telescopic rod 13 is located on the left side of the vertical slide plate 11.

[0058] Preferably, one end of the horizontal pipe 2 located outside the environment containing NMP gas is connected to a second gas NMP gas detection device or an NMP gas absorption device 18, the NMP gas absorption device 18 and the control box 7 are both connected to the base plate 21, and the front end of the control box 7 is detachably connected to the mounting plate three 4.

[0059] The first NMP gas detection device 5 can refer to the gas sensor of the high temperature NMP gas detection device of CN211603102U;

[0060] The second NMP gas detection device is a prior art, such as CN213544514U;

[0061] The working principle and beneficial effects of the above technical solution are:

[0062] 1. In the present invention, the first NMP gas detection device 5 is directly placed in a high-temperature environment containing NMP gas, and the horizontal pipe 1 2 and the horizontal pipe 2 6 are both made of high-temperature resistant materials. The wire of the first NMP gas detection device 5 can be led out of the high-temperature environment through the horizontal pipe 2 6 to protect the wire;

[0063] 2. When the second NMP gas detection device is not needed for detection, at the initial length of the horizontal electric telescopic rod 13, the spring is compressed and the sealing plate 12 seals the left part of the horizontal air inlet pipe 9;

[0064] When the first NMP gas detection device 5 fails to detect, the horizontal electric telescopic rod 13 can be controlled to shorten, and the sealing plate 12 can be driven to move to the left under the elastic force of the spring 1, so as to open the horizontal air inlet pipe 9, and the NMP gas in the high-temperature environment containing NMP gas enters the horizontal pipe 2 through the horizontal air inlet pipe 9, and the second NMP gas outside the high-temperature environment is introduced through the horizontal pipe 2 for detection, thereby realizing NMP gas detection outside the high-temperature environment and avoiding the failure of the second NMP gas due to being in the high-temperature environment for a long time.

[0065] The present invention solves the following problems proposed in the background art: the existing NMP gas detection device, such as CN211603102U, has: 1. NMP gas detection can only be performed by a gas sensor located in a high-temperature gas environment. When the gas sensor in the high-temperature gas environment fails due to being in a high-temperature environment for a long time, NMP detection cannot be performed;

[0066] Embodiment 2, on the basis of embodiment 1, as Figure 3 As shown, it also includes: a mounting block 14, a conductor 15 is set at the rear end of the mounting block 14, a conductor 2 16 is set at the left end of the vertical slide 11, and the conductor 15 is in contact with the conductor 2 16, so that the power supply supplies power to the alarm 1.

[0067] The beneficial effects of the above technical solution are: when the air pressure in the high temperature environment is high, under the action of the air pressure, the vertical slide plate 11 moves a large distance to the left, so that the conductor 15 and the conductor 2 16 are in contact and conductive, so that the power supply supplies power to the alarm 1, and the alarm 1 is used to remind that the air pressure in the high temperature environment is high, thereby realizing air pressure warning and ensuring safety of use.

[0068] Embodiment 3, on the basis of embodiment 1 or 2, as Figure 4As shown, it also includes: a protective device 17, the first NMP gas detection device 5 is installed on the front side of the mounting plate 2 3 through the protective device 17, and the protective device 17 includes:

[0069] The front end of the mounting seat 171 is fixedly connected to the rear end of the mounting plate 2 3, a groove 172 is set in the middle of the front end of the mounting seat 171, and sealing components 173 are symmetrically set on the left and right sides of the rear of the mounting seat 171, and the two sealing components 173 seal the rear of the groove 1 172;

[0070] The second horizontal electric telescopic rod 174 is fixedly embedded in the front end of the first mounting groove 172, and a connecting plate 175 is arranged at the rear end of the vertical electric telescopic rod, and the rear side of the connecting plate 175 is connected to the first NMP gas detection device 5.

[0071] The sealing assembly may be a prior art, or may include: a horizontal baffle, a rack is arranged at the upper end of the horizontal baffle, a gear is arranged in the mounting seat 171, the gear is driven by a gear motor, and the gear is driven by the gear motor to drive the rack and the corresponding horizontal baffle to move left and right, and finally the left and right horizontal baffles are close to each other to close the groove 1;

[0072] The working principle and beneficial effects of the above technical solution are as follows: the first NMP gas detection device 5 can work intermittently. When the first NMP gas detection device 5 is not needed to work, the horizontal electric telescopic rod 174 is controlled to retract, so that the first NMP gas detection device 5 is located at the rear side of the sealing component 173 in the groove 172, and then the two sealing components 173 are controlled to seal the front part of the groove 172, so as to protect the first NMP gas detection device 5, avoid the first NMP gas detection device 5 being in a high temperature environment for a long time, which may affect its service life, and prevent the first NMP gas detection device 5 from being dust-proof when it is not needed.

[0073] The present invention solves the following problems proposed in the background technology: the existing NMP gas detection device, such as CN211603102U, has the following problems: lack of protective device for gas sensor, which easily affects the life of the NMP gas detection device

[0074] Embodiment 4, on the basis of embodiment 3, as Figure 4-Figure 5 As shown, cavity one 176 is symmetrically arranged on the left and right sides of the groove one 172 in the mounting seat 171, and cavity one 176 is connected to the rear part of the groove one 172 through through hole two. Cavity two 177 is also arranged in the middle between cavity one 176 and the groove one 172, and cavity two 177 is connected to the groove one 172. The protective device 17 also includes two groups of left-right symmetrical auxiliary components, and the auxiliary components on the left side include:

[0075] Slide plate 178 is connected to cavity 176 by sliding forward and backward, and the rear end of slide plate 178 is connected to the rear end of cavity 176 by spring 2. An arc-shaped protrusion 179 is provided at the rear right side of slide plate 178, and a fixed horizontal rod 1710 is provided in the middle right side of slide plate 178. A vertical rod 1714 is integrally provided at the rear right side of horizontal rod 1710, and a sealing block 1715 is fixedly connected to the rear end of vertical rod 1714. Horizontal rod 1710 is connected to through hole 2 by sliding forward and backward, and sealing block 1715 is used to close the right side of cavity 2 177, and sealing block 1715 is fixedly connected to the telescopic section of the front side of horizontal electric telescopic rod 2 174;

[0076] The right end of the horizontal rod 1711 is fixedly connected with the vertical slide 1712, which is slidably connected to the cavity 177, and the left side of the vertical slide 1712 is connected to the inner wall of the cavity 177. The left end of the horizontal rod 1711 is an arc surface, which contacts and cooperates with the arc-shaped protrusion 179. The right end of the vertical slide 1712 is provided with a cooling device 1713, which is a cooling nozzle (connected to a cooling gas source) or a cooling fan. In this embodiment, the groove 1 can also be connected to the exhaust pipe, and the exhaust pipe is connected to the solenoid valve;

[0077] The working principle and beneficial effects of the above technical solution are:

[0078] 1. When the first NMP gas detection device 5 performs detection, as Figure 5 As shown, the sealing block 1715 is used to seal the second cavity 177 to prevent the cooling device 1713 in the second cavity 177 from being exposed to a high temperature environment for a long time and being easily damaged;

[0079] 2. When the first NMP gas detection device 5 is not needed or needs to be cooled, the horizontal electric telescopic rod 174 is controlled to retract backward so that the first NMP gas detection device 5 is located at the rear side of the sealing component 173 in the groove 172, and then the two sealing components 173 are controlled to seal the front part of the groove 172 to achieve closed protection of the first NMP gas detection device 5;

[0080] The contraction of the second horizontal electric telescopic rod 174 can drive the sealing block 1715, the first horizontal rod 1710, and the first vertical rod 1714 to move backward synchronously. On the one hand, the sealing block 1715 opens the second cavity 177, so that the cooling device 1713 can cool the first NMP gas detection device 5, and the cooling of the first NMP gas detection device 5 can be accelerated by the left and right cooling devices 1713;

[0081] The horizontal electric telescopic rod 174 contracts, and on the other hand, the horizontal rod 1710 and the vertical rod 1714 drive the slide plate 178 to move backward, and through the contact and cooperation between the arc surface and the arc-shaped protrusion 179, the left and right horizontal rods 1711 are driven to approach each other, so that the left and right cooling devices 1713 extend into the groove 172, thereby expanding the range of action of the cooling device 1713 and accelerating the cooling of the first NMP gas detection device 5.

[0082] Embodiment 5, on the basis of any one of Embodiments 1-4, as Figure 5 As shown, the NMP gas absorption device 18 includes:

[0083] A processing box 181, the upper end of the processing box 181 rotates through a vertical shaft 182, and a driving motor 183 for driving the vertical shaft 182 to rotate is provided at the upper end of the processing box 181;

[0084] The horizontal plate 184 is connected to the upper inner wall of the processing box 181 by sliding up and down. A plurality of vertical nozzles 185 are arranged around the lower end of the horizontal plate 184. A plurality of nozzles are arranged at intervals up and down on the vertical nozzle 185. The vertical shaft 182 rotates through the transmission mechanism 19 to drive the horizontal plate 184 to rise and fall.

[0085] The gas outlet plate 186 is fixedly connected to the lower end of the vertical shaft 182, and the gas outlet plate 186 is connected to the NMP gas inlet pipe 2;

[0086] The liquid tank 187 is fixedly connected to the lower end of the processing tank 181, a filter screen 188 is arranged in the liquid tank 187, the liquid tank 187 is connected to a drain pipe 189, the drain pipe 189 is connected to the vertical nozzle 185 through a connecting pipe 1, the drain pipe 189 is connected to a water pump 1810, a drain port 1811 is arranged on the left side of the processing tank 181, a sealing block 1812 is slidably connected to the drain port 1811 up and down, the upper end of the sealing block 1812 is fixedly connected to the lower end of a vertical nozzle 185 through a vertical rod 2 1813, and a temperature regulating device (which is the prior art) is arranged at the lower part of the filter screen 188 in the processing tank 181.

[0087] Preferably, the transmission mechanism 19 includes: an arc-shaped slide groove 191 (the arc-shaped slide groove 191 changes in height in the circumferential direction) arranged on the upper part of the vertical shaft 182 and surrounding the circumferential side of the vertical shaft 182, a slide rod 193 is slidably connected in the arc-shaped slide groove 191, the slide rod 193 is connected to the upper part of the 7-shaped rod 192, and the upper end of the horizontal plate 184 is fixedly connected to the lower end of the 7-shaped rod 192.

[0088] The working principle and beneficial effects of the above technical solution are:

[0089] 1. One end of the horizontal pipeline 2 located outside the environment containing NMP gas is connected to the second gas NMP gas detection device or the NMP gas absorption device 18, so that the high-temperature gas in the high-temperature gas environment can be directly introduced into the NMP gas absorption device 18, or can be detected by the second gas NMP gas detection device and then enter the NMP gas absorption device 18 through the second gas NMP gas detection device;

[0090] 2. In the NMP gas absorption device 18, the NMP gas enters the gas outlet plate 186 through the NMP gas inlet pipe 2, and is discharged through the gas outlet on the gas outlet plate 186. The liquid used to absorb the NMP gas (refer to CN215693006U) is discharged through the vertical nozzle 185;

[0091] At the same time, the driving motor 183 is controlled to work, on the one hand, the vertical shaft 182 is driven to rotate to expand the discharge range of the NMP gas, and then through multiple vertical nozzles 185, and the vertical shaft rotates through the sliding rod 193 to slide in the arc-shaped sliding groove 191, driving the 7-shaped rod 192 and the horizontal plate 184 to move up and down; the absorption efficiency of the NMP gas can be increased; and during the absorption process of the NMP gas, the block 1812 is sealed in the discharge port 1811;

[0092] 3. When it is necessary to open the drain port 1811, control the driving motor 183 to work, so that the horizontal plate 184 drives the vertical rod 1813 to move downward to the bottom of the drain port 1811, open the drain port 1811, and discharge the reaction liquid in the processing box 181 into the liquid tank 187 through the drain port 1811, and then filter through the filter screen 188, and then adjust the temperature through the temperature control device, so as to avoid impurities affecting the NMP gas absorption effect through filtering; through temperature control, ensure that the reaction liquid is at a suitable temperature to ensure the absorption effect of NMP gas;

[0093] The vertical rod 2 and the blocking block 1812 can move up and down to clear the drain port 1811 and avoid blockage of the drain port 1811.

[0094] Embodiment 6, on the basis of embodiment 5, as Figure 5-Figure 6 As shown, the NMP gas absorption device 18 also includes: an air intake and processing device 20, and the air intake and processing device 20 includes:

[0095] The processing shell 201 is fixedly connected to the left outer wall of the processing box 181, and the left side of the processing shell 201 is fixedly connected to the air inlet shell 202, and the air inlet shell 202 is connected to the NMP gas inlet pipe 1 (which can be connected to the horizontal pipeline 12 or connected to other areas where the gas detection system is located and needs to absorb NMP gas). A groove 2 is set at the upper end of the middle part of the left inner wall of the processing shell 201, and a plurality of through holes 3 203 are set on the left side of the groove 2 in the processing shell 201. The through holes 3 203 connect the air inlet shell 202 and the groove 2. The lower end of the through hole 3 203 is a left-lower-right-higher inclined surface, and the upper right side of the through hole 3 203 is embedded with bristles, and the lifting block 204 is connected in the groove 2 by sliding up and down. A filter screen 205 corresponding to the through hole 3 203 is embedded in the lifting block 204. The lifting block 204 is driven to lift by a vertical electric telescopic rod 206. A plurality of through holes 207 are connected to the right side of the groove 2 in the processing shell 201. The through holes 207 are connected to the inside of the processing shell 201. An exhaust pipe 208 is connected to the upper part of the processing shell 201. The exhaust pipe 208 is connected to the processing box 181 through the NMP gas inlet pipe 2 and the gas outlet plate 186. The NMP gas inlet pipe 2 is a hose. An NMP gas absorption liquid nozzle is set in the processing shell 201. The processing shell 201 is connected to the liquid tank 187 through the drain pipe 2. The drain pipe 2 is provided with a solenoid valve. The NMP gas absorption liquid nozzle can be connected to the liquid outlet of the water pump 1 1810 through a pipeline.

[0096] The working principle and beneficial effects of the above technical solution are:

[0097] 1. The NMP gas in the NMP gas inlet pipe 1 enters the gas inlet shell 202, and the large particles of impurities in the NMP gas are filtered through the filter screen 205 to avoid affecting the absorption efficiency and effect of the NMP absorption liquid;

[0098] When there are many impurities on the second filter screen 205, the lifting block 204 can be moved upward by extending the vertical electric telescopic rod 206, and the large particles of impurities on the left side of the second filter screen 205 can be removed by embedding a brush shell on the right side of the upper end of the through hole 3 203, and the removed impurities fall into the air inlet shell through the inclined surface; wherein, the second filter screen 205 can also be sprayed with NMP gas absorption liquid to discharge the large particles of impurities from the second filter screen 205, at this time, the inlet pipe 1 can be provided with a pipeline to enter the upper end of the first filter screen 188 in the liquid tank 187;

[0099] 2. The NMP gas filtered by the second filter 205 enters the processing shell 201 through the fourth through hole 207. The NMP gas absorption liquid nozzle can be set in the processing shell 201 to cool and preliminarily absorb the NMP gas, thereby ensuring the final NMP gas treatment effect after secondary absorption by the processing box 181.

[0100] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A high-temperature NMP gas detection system for safety in the lithium battery industry, characterized by: include: A mounting plate (1), a horizontal pipe (2) passing through the mounting plate (1), a mounting plate (3) and a mounting plate (4) are respectively arranged at both ends of the horizontal pipe (2), the mounting plate (3) is used to install a first NMP gas detection device (5), and the first NMP gas detection device (5) is located in an environment containing NMP gas; A second horizontal pipe (6) passes through the second mounting plate (3) and the third mounting plate (4), and the inside of the second horizontal pipe (6) is used for passing the wires. The second horizontal pipe (6) is located inside the first horizontal pipe (2); A control box (7) is detachably connected to the mounting plate three (4), and the control box (7) is located outside the environment containing the NMP gas; an exhaust mechanism in communication with said horizontal pipe one (2); The exhaust mechanism includes: A horizontal air inlet pipe (9) passing through the horizontal pipeline (2) and located on the right side behind the mounting plate (1); The control housing (10) is fixedly connected to the left side of the horizontal pipe (2); the vertical slide plate (11) is slidably connected to the inside of the control housing (10); the left end of the horizontal block (8) is fixedly connected to the right side of the vertical slide plate (11); the right end of the horizontal block (8) is fixedly connected to a sealing plate (12); the sealing plate (12) is used to seal the left part of the horizontal air intake pipe (9); a through hole (81) is provided in the middle of the horizontal block (8) and is connected to the front and rear sides; the horizontal pipe (6) is located in the through hole (81); a spring (1) is fixedly connected between the right side of the vertical slide plate (11) and the right inner wall of the control housing (10); A horizontal electric telescopic rod (13), the fixed end of the left end of which is fixedly connected to the left inner wall of the control housing (10), and the right end of the horizontal electric telescopic rod (13) is located on the left side of the vertical slide plate (11); One end of the horizontal pipeline 1 (2) located outside the environment containing NMP gas is connected to a second gas NMP gas detection device or an NMP gas absorption device (18), the NMP gas absorption device (18) and the control box (7) are both connected to the bottom plate (21), and the front end of the control box (7) is detachably connected to the mounting plate 3 (4); A high-temperature NMP gas detection system for lithium battery industry safety also includes: a protective device (17), wherein a first NMP gas detection device (5) is installed on the front side of a second mounting plate (3) through the protective device (17), and the protective device (17) includes: The front end of the mounting seat (171) is fixedly connected to the rear end of the second mounting plate (3); a groove (172) is arranged in the middle of the front end of the mounting seat (171); sealing components (173) are symmetrically arranged on the left and right sides of the rear of the mounting seat (171); and the two sealing components (173) seal the rear of the groove (172); A second horizontal electric telescopic rod (174) is fixedly embedded in the front end of the first mounting groove (172); a connecting plate (175) is arranged at the rear end of the vertical electric telescopic rod, and a first NMP gas detection device (5) is connected to the rear side of the connecting plate (175); A cavity 1 (176) is symmetrically arranged on the left and right sides of the groove 1 (172) in the mounting seat (171), and the cavity 1 (176) is connected to the rear of the groove 1 (172) through the through hole 2. A cavity 2 (177) is also arranged in the middle between the cavity 1 (176) and the groove 1 (172), and the cavity 2 (177) is connected to the groove 1 (172). The protective device (17) also includes two groups of auxiliary components that are symmetrical on the left and right, and the auxiliary components on the left include: A slide plate (178) is connected to the cavity (176) by sliding forward and backward, the rear end of the slide plate (178) is connected to the rear end of the cavity (176) by spring (2), an arc-shaped protrusion (179) is arranged at the rear right side of the slide plate (178), a fixed horizontal rod (1710) is arranged in the middle right side of the slide plate (178), a vertical rod (1714) is integrally arranged at the rear right side of the horizontal rod (1710), a sealing block (1715) is fixedly connected to the rear end of the vertical rod (1714), the horizontal rod (1710) is connected to the through hole (2) by sliding forward and backward, the sealing block (1715) is used to seal the right side of the cavity (177), and the sealing block (1715) is fixedly connected to the telescopic section at the front side of the horizontal electric telescopic rod (174); The second horizontal rod (1711) has a second vertical slide plate (1712) fixedly connected at its right end. The second vertical slide plate (1712) is slidably connected to the second cavity (177) in the left and right directions. A third spring is connected between the left side of the second vertical slide plate (1712) and the inner wall of the second cavity (177). The left end of the second horizontal rod (1711) is an arc surface, which contacts and cooperates with the arc-shaped protrusion (179). A cooling device (1713) is arranged at the right end of the second vertical slide plate (1712). The cooling device (1713) is a cooling nozzle or a cooling fan. The NMP gas absorption device (18) comprises: A processing box (181), the upper end of the processing box (181) rotates and penetrates the vertical shaft (182), and a driving motor (183) for driving the vertical shaft (182) to rotate is arranged at the upper end of the processing box (181); A horizontal plate (184) is slidably connected to the upper inner wall of the processing box (181) up and down. A plurality of vertical nozzles (185) are arranged around the lower end of the horizontal plate (184). A plurality of nozzles are arranged at intervals up and down on the vertical nozzles (185). The vertical shaft (182) rotates through the transmission mechanism (19) to drive the horizontal plate (184) to rise and fall. An air outlet plate (186) is fixedly connected to the lower end of the vertical shaft (182), and the air outlet plate (186) is connected to the second NMP gas inlet pipe; A liquid box (187) is fixedly connected to the lower end of the processing box (181). A filter screen (188) is arranged in the liquid box (187). The liquid box (187) is connected to a drain pipe (189). The drain pipe (189) is connected to a vertical nozzle (185) through a connecting pipe. The drain pipe (189) is connected to a water pump (1810). A drain port (1811) is arranged on the left side of the processing box (181). A sealing block (1812) is slidably connected to the drain port (1811) up and down. The upper end of the sealing block (1812) is fixedly connected to a lower end of a vertical nozzle (185) through a vertical rod (1813). A temperature control device is arranged below the filter screen (188) in the processing box (181). A high-temperature NMP gas detection system for safety in the lithium battery industry further includes: an air intake and processing device (20), the air intake and processing device (20) including: The processing shell (201) is fixedly connected to the left outer wall of the processing box (181), the left side of the processing shell (201) is fixedly connected to the air inlet shell (202), the air inlet shell (202) is connected to the NMP gas inlet pipe 1, a groove 2 is arranged at the upper end of the middle part of the left inner wall of the processing shell (201), a plurality of through holes 3 (203) are arranged in the processing shell (201) on the left side of the groove 2, the through holes 3 (203) are connected to the air inlet shell (202) and the groove 2, the lower end of the through hole 3 (203) is a left lower and right higher inclined surface, and the upper right side of the through hole 3 (203) is embedded with bristles, and the lifting block (204) is slidably connected to the groove 2, and the lifting block (204) is embedded with a plurality of through holes 3 (203) corresponding to the through holes 3 (203) one by one. The filter screen (205) is provided with a lifting block (204) which is driven to lift by a vertical electric telescopic rod (206). A plurality of through holes (207) are arranged in the processing shell (201) on the right side of the groove (2). The through holes (207) are connected to the inside of the processing shell (201). An exhaust pipe (208) is arranged in the upper part of the processing shell (201). The exhaust pipe (208) is connected to the processing box (181) and is connected to the gas outlet plate (186) through the NMP gas inlet pipe (2). The NMP gas inlet pipe (2) is a hose. An NMP gas absorption liquid nozzle is arranged in the processing shell (201). The processing shell (201) is connected to the liquid tank (187) through the drain pipe (2). The drain pipe (2) is provided with a solenoid valve.

2. A high-temperature NMP gas detection system for safety in the lithium battery industry according to claim 1, characterized in that: Also includes: The mounting block (14) is provided with a conductor (15) at the rear end of the mounting block (14), and the left end of the vertical slide plate (11) is provided with a conductor (16). The conductor (15) and the conductor (16) are in contact and conduction, so that the power supply supplies power to the alarm device (1).

3. A high-temperature NMP gas detection system for safety in the lithium battery industry according to claim 1, characterized in that: The transmission mechanism (19) comprises: an arc-shaped slide groove (191) arranged on the upper part of the vertical shaft (182) and surrounding the circumference of the vertical shaft (182); a slide rod (193) slidably connected in the arc-shaped slide groove (191); the slide rod (193) is connected to the upper part of the 7-shaped rod (192); and the upper end of the horizontal plate (184) is fixedly connected to the lower end of the 7-shaped rod (192).

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