Sampling box structure for chemical equipment

Abstract

The utility model relates to a sampling box structure for chemical equipment, the sampling box structure comprises a negative pressure box body, a chemical liquid input pipe, a spraying module and a cleaning liquid input pipe, the interior of the negative pressure box body is divided into a sampling chamber, an outer side door and an inner side door, and the outer side door and the inner side door are oppositely arranged and can close or open the sampling chamber; the chemical liquid input pipe is accommodated in the sampling chamber; the spraying module is arranged at the upper section of the interior of the sampling chamber and is provided with an annular communicating pipe which is arranged along the inner periphery of the sampling chamber and surrounds the exterior of the chemical liquid input pipe and a plurality of nozzles communicated with the annular communicating pipe; and the cleaning liquid input pipe is communicated with the annular communicating pipe. Therefore, the plurality of nozzles can uniformly spray water or cleaning liquid on the inner peripheral wall of the sampling chamber, so that the sampling box structure disclosed by the utility model has the effect of cleaning the inner peripheral wall of the sampling chamber.

Description

Technical Field

[0001] The utility model relates to a sampling box structure, and particularly to a sampling box structure for chemical equipment. Background Art

[0002] Some chemical liquids are dangerous. For example, sulfuric acid, especially sulfuric acid in a high-concentration state, can not only decompose biological tissues, causing chemical burns and secondary flame burns, but also cause a violent reaction and release heat energy due to the wrong order of sulfuric acid and water, resulting in the danger of acid splashing due to high-temperature boiling. In addition, sulfuric acid belongs to the second-level acute toxicity substance in the chemical hazard classification, so inhalation will be fatal.

[0003] In order to avoid the various dangers described above, when staff members want to draw such chemical liquids for use, they need to take them through a sampling box with a negative pressure inside the internal space and can be closed, so that the chemical reactions that the chemical liquids may produce can be isolated inside the sampling box, thus ensuring that the chemical liquids will not come into direct contact with the staff members to avoid the various dangers described above.

[0004] However, during the process of drawing chemical liquids, it is inevitable that the chemical liquids will splash onto the inner wall of the sampling box, resulting in the possibility that the staff members may touch the chemical liquids remaining on the inner wall of the sampling box last time or inhale their gases. Moreover, a lot of dirt will accumulate in the internal space of the sampling box after long-term use, causing various dangers, whether the aforementioned or unknown, for the staff members when using the sampling box next time, which has long been criticized.

[0005] In view of this, the applicant specifically studied the above-mentioned existing technology with great concentration and combined with the application of theory, and tried his best to solve the above problems, which became the goal of the applicant's improvement. Summary of the Utility Model

[0006] The utility model provides a sampling box structure for chemical equipment, which uses an annular connecting pipe to be arranged along the inner periphery of the sampling chamber, so that a plurality of nozzles can evenly spray water or cleaning liquid on the inner peripheral wall of the sampling chamber, so as to achieve the effect that the sampling box structure of the utility model can clean the inner peripheral wall of the sampling chamber.

[0007] In an embodiment of the utility model, the utility model provides a sampling box structure for chemical equipment, including: a negative pressure box body, internally separated into a sampling chamber and having an outer door and an inner door that are relatively arranged and can close or open the sampling chamber; a chemical liquid input pipe, accommodated in the sampling chamber; a spraying module, arranged in the upper section inside the sampling chamber, the spraying module having an annular connecting pipe arranged along the inner periphery of the sampling chamber and surrounding the outside of the chemical liquid input pipe and a plurality of nozzles communicated with the annular connecting pipe; and a cleaning liquid input pipe, communicated with the annular connecting pipe.

[0008] Based on the above, the annular connecting pipe is arranged along the inner periphery of the sampling chamber, so that multiple nozzles can evenly spray water, cleaning liquid or blow air flow on the inner peripheral wall of the sampling chamber, enabling cleaning after each use of the sampling box structure to prevent the accumulation of chemical liquids and their gases on the inner wall of the sampling chamber, and at the same time avoiding the contact of users with the chemical liquids and their gases remaining in the sampling chamber, so as to achieve the advantages of the sampling box structure being able to clean and dry the inner peripheral wall of the sampling chamber 11 and improve the use safety.

[0009] Based on the above, a negative pressure channel is further partitioned inside the negative pressure box body and is arranged on one side of the left, right and bottom of the sampling chamber to achieve lateral air extraction relative to the sampling chamber and increase the exhaust efficiency. Moreover, the negative pressure box body encloses a barrier space that is isolated from the sampling chamber and the negative pressure channel between the outer door and the inner door to prevent the chemical liquids and their gases in the sampling chamber from entering the barrier space, ensuring that there are no chemical liquids and their gases in the barrier space between the outer door and the inner door, so that the chemical liquids and their gases cannot leak out through the outer door, thereby further enhancing the use safety of the sampling box structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a three-dimensional schematic diagram of the sampling box structure of the present utility model.

[0011] Figure 2 is another three-dimensional schematic diagram of the sampling box structure of the present utility model.

[0012] Figure 3 is the first sectional schematic diagram of the sampling box structure of the present utility model.

[0013] Figure 4 is the second sectional schematic diagram of the sampling box structure of the present utility model.

[0014] Figure 5 is the third sectional schematic diagram of the sampling box structure of the present utility model.

[0015] Figure 6 is the fourth sectional schematic diagram of the sampling box structure of the present utility model.

[0016] Figure 7 is the fifth sectional schematic diagram of the sampling box structure of the present utility model.

[0017] Among them, reference numerals:

[0018] 10: Sampling box structure

[0019] 1: Negative pressure box body

[0020] 11: Sampling chamber

[0021] 111: Top wall

[0022] 112: Bottom wall

[0023] 1121: Inclined slope

[0024] 113: Front wall

[0025] 1131: Outer opening

[0026] 114: Rear wall

[0027] 115: First side wall

[0028] 116: Second side wall

[0029] 117: First longitudinal partition

[0030] 1171: Hollow hole

[0031] 118: Transverse partition

[0032] 1181: Through hole

[0033] 1182: Substrate

[0034] 1183: Removable plate

[0035] 119: Second longitudinal partition

[0036] 1191: Inner opening

[0037] 12: Outer door

[0038] 13: Inner door

[0039] 14: Negative pressure channel

[0040] 141: Upper space

[0041] 142: Lower space

[0042] 15: Blocking space

[0043] 16: Ventilation hole

[0044] 2: Chemical liquid input pipe

[0045] 3: Spraying module

[0046] 31: Annular connecting pipe

[0047] 32: Nozzle

[0048] 4: Cleaning liquid input pipe

[0049] 5: Negative pressure fluid output pipe

[0050] 6: Positive pressure fluid input pipe

[0051] 7: Switch valve

[0052] 71: Fixed grid plate

[0053] 711: First through port

[0054] 72: Movable grid plate

[0055] 721: Second through port

[0056] 8: Liquid collection pipe

[0057] S: Spacing

[0058] 100: Sampling cup Detailed implementation manners

[0059] The detailed description and technical content of the present utility model will be described as follows in conjunction with the accompanying drawings. However, the accompanying drawings are only for illustrative purposes and are not intended to limit the creation.

[0060] Please refer to Figures 1 to 7 As shown, the present utility model provides a sampling box structure for chemical equipment. This sampling box structure 10 mainly includes a negative pressure box body 1, a chemical liquid input pipe 2, a spraying module 3 and a cleaning liquid input pipe 4.

[0061] As Figures 1 to 7 shown, a sampling chamber 11 is separated inside the negative pressure box body 1, and a negative pressure channel 14 is arranged on the left, right and bottom sides of the sampling chamber 11. The negative pressure box body 1 has an outer door 12 and an inner door 13 that are arranged opposite to each other and can close or open the sampling chamber 11.

[0062] Specifically, the negative pressure box body 1 has a top wall 111, a bottom wall 112, a front wall 113, a rear wall 114, a first side wall 115, a second side wall 116, a first longitudinal partition 117 arranged between the first side wall 115 and the second side wall 116 and having its outer peripheral edge connected to the top wall 111, the front wall 113 and the rear wall 114, a transverse partition 118 arranged between the top wall 111 and the bottom wall 112 and having its outer peripheral edge connected to the front wall 113, the rear wall 114, the second side wall 116 and the first longitudinal partition 117, and a second longitudinal partition 119 arranged between the front wall 113 and the rear wall 114 and having its outer peripheral edge connected to the top wall 111, the second side wall 116, the first longitudinal partition 117 and the transverse partition 118. A spacing S is formed between the end of the first longitudinal partition 117 and the bottom wall 112. Among them, in this embodiment, the first side wall 115 is the left wall and the second side wall 116 is the right wall, but it is not limited thereto. The first side wall 115 can also be the right wall, and the second side wall 116 can also be the left wall.

[0063] In addition, the sampling chamber 11 is enclosed by a part of its top wall 111, a part of its rear wall 114, a part of its second side wall 116, a part of its first longitudinal partition 117, a part of its transverse partition 118, and all of its second longitudinal partitions 119.

[0064] Furthermore, the negative pressure passage 14 is enclosed by another part of the top wall 111, all of the bottom wall 112, a part of the front wall 113, another part of the rear wall 114, all of the first side walls 115, all of the first longitudinal partitions 117, and all of the transverse partitions 118.

[0065] Also, the remaining part of the top wall 111, another part of the front wall 113, another part of the second side wall 116, another part of the first longitudinal partition 117, another part of the transverse partition 118, and all of the second longitudinal partitions 119 enclose a blocking space 15.

[0066] In addition, the second longitudinal partition 119 is provided with an inner opening 1191. The inner door 13 is pivotally connected to the second longitudinal partition 119 and can close or open the inner opening 1191. The front wall 113 is provided with an outer opening 1131 that communicates with the blocking space 15 and is disposed opposite to the inner opening 1191. The outer door 12 is pivotally connected to the front wall 113 and can close or open the outer opening 1131.

[0067] As Figures 1 to 2 、 Figures 4 to 7 shown, the chemical liquid input pipe 2 is accommodated in the sampling chamber 11. The sampling cup 100 can be placed in the sampling chamber 11 and is arranged corresponding to the chemical liquid input pipe 2, so that the required chemical liquid is conveyed to the sampling cup 100 through the chemical liquid input pipe 2.

[0068] As Figure 1 、 Figures 3 to 5 shown, the spraying module 3 is arranged in the upper section inside the sampling chamber 11. The spraying module 3 has an annular communication pipe 31 and a plurality of nozzles 32 communicating with the annular communication pipe 31. The annular communication pipe 31 is arranged along the inner periphery of the sampling chamber 11 and encloses the outside of the chemical liquid input pipe 2, that is, the shape of the annular communication pipe 31 is similar to the shape of the inner periphery of the sampling chamber 11.

[0069] As Figures 1 to 2 、 Figures 6 to 7 shown, the cleaning liquid input pipe 4 communicates with the annular communication pipe 31, so that water or cleaning liquid is conveyed to the annular communication pipe 31 through the cleaning liquid input pipe 4. Since the annular communication pipe 31 is arranged along the inner periphery of the sampling chamber 11, the plurality of nozzles 32 can evenly spray water or cleaning liquid on the inner peripheral wall of the sampling chamber 11, thereby achieving the effect of cleaning the inner peripheral wall of the sampling chamber 11.

[0070] As Figures 1 to 2 、 Figures 6 to 7As shown, the sampling box structure 10 of the present utility model further includes a positive pressure fluid input pipe 6. The positive pressure fluid input pipe 6 is connected to the annular communication pipe 31, so as to blow air flow to the annular communication pipe 31 through the positive pressure fluid input pipe 6. Since the annular communication pipe 31 is arranged along the inner periphery of the sampling chamber 11, multiple nozzles 32 can evenly blow air flow to the inner peripheral wall of the sampling chamber 11, thereby achieving the effect of drying the inner peripheral wall of the sampling chamber 11.

[0071] As Figures 1 to 2 、 Figures 4 to 7 shown, the sampling box structure 10 of the present utility model further includes a negative pressure fluid output pipe 5. The negative pressure fluid output pipe 5 is installed at the inner top end of the negative pressure channel 14, that is, the negative pressure fluid output pipe 5 penetrates and is exposed on the top wall 111. A plurality of air permeable holes 16 communicating with the negative pressure channel 14 are provided at the bottom of the sampling chamber 11. The negative pressure fluid output pipe 5 is used to suck air to make the indoor environment in a negative pressure state, so that the indoor air in the sampling chamber 11 can be sequentially sucked to the outside of the negative pressure box 1 through the plurality of air permeable holes 16, the negative pressure channel 14 and the negative pressure fluid output pipe 5.

[0072] In addition, a plurality of air permeable holes 16 are opened from a part of the transverse partition plate 118, and one end of the plurality of air permeable holes 16 communicates with the negative pressure channel 14 and the other end communicates with the sampling chamber 11. A plurality of through holes 1181 with one end communicating with the negative pressure channel 14 and the other end communicating with the barrier space 15 are provided on another part of the transverse partition plate 118.

[0073] Among them, the plurality of through holes 1181 can be omitted according to the actual situation. If the transverse partition plate 118 does not have a plurality of through holes 1181, the barrier space 15 will be isolated from the sampling chamber 11 and the negative pressure channel 14; on the contrary, if the transverse partition plate 118 has a plurality of through holes 1181, the indoor air in the barrier space 15 will also be sequentially sucked to the outside of the negative pressure box 1 through the plurality of through holes 1181, the negative pressure channel 14 and the negative pressure fluid output pipe 5, thereby preventing the indoor air in the sampling chamber 11 from entering the barrier space 15 and ensuring that there is no chemical liquid and its gas in the barrier space 15 located between the outer door 12 and the inner door 13.

[0074] Further explanation is as follows. The transverse partition plate 118 includes a base plate 1182 and a detachable plate 1183 detachably connected to the base plate 1182 and arranged corresponding to the sampling chamber 11. A plurality of air permeable holes 16 are opened on the detachable plate 1183, and a plurality of through holes 1181 are opened on the base plate 1182. Since the detachable plate 1183 can be assembled and disassembled from the base plate 1182, the user can disassemble the detachable plate 1183 by himself for cleaning, maintenance or replacement.

[0075] As Figures 3 to 4 、 Figures 6 to 7As shown, the sampling box structure 10 of the utility model also includes a switch valve 7, which is installed in the negative pressure channel 14. The switch valve 7 is arranged between the top wall 111 and the bottom wall 112, and the outer periphery is connected to the front wall 113, the rear wall 114, the first side wall 115 and the first longitudinal partition 117. The negative pressure channel 14 is divided into an upper space 141 and a lower space 142 by the switch valve 7. The first longitudinal partition 117 is provided with a plurality of hollow holes 1171 connected to the sampling chamber 11 at one end and connected to the lower space 142 at the other end, so that the indoor air of the sampling chamber 11 can be sucked to the outside of the negative pressure box body 1 through the plurality of air holes 16 and the plurality of hollow holes 1171, the lower space 142, the upper space 141 and the negative pressure fluid output pipe 5 in sequence.

[0076] The detailed description is as follows. The switch valve 7 includes a fixed grid plate 71 whose outer periphery is connected between the front wall 113, the rear wall 114, the first side wall 115 and the first longitudinal partition 117, and a movable grid plate 72 that can be movably overlapped on the fixed grid plate 71. The fixed grid plate 71 is provided with a plurality of first openings 711, and the movable grid plate 72 is provided with a plurality of second openings 721. The plurality of second openings 721 can follow the movement of the movable grid plate 72 and overlap or stagger with the plurality of first openings 711, so that the switch valve 7 can control the upper space 141 and the lower space 142 of the negative pressure channel 14 to be connected or blocked with each other, thereby allowing the switch valve 7 to have the effect of controlling whether the negative pressure fluid output pipe 5 can suck air into the interior of the sampling chamber 11.

[0077] like Figures 1 to 7 As shown, the sampling box structure 10 of the utility model also includes a liquid collecting tube 8, which is installed on the bottom wall 112. The bottom wall 112 has a corresponding plurality of hollow holes 1171 and an inclined slope 1121 that gradually decreases in height toward the liquid collecting tube 8. The chemical liquid, water or cleaning liquid in the sampling chamber 11 can flow to the bottom wall 112 through the plurality of air holes 16, and the inclined slope 1121 can guide the chemical liquid, water or cleaning liquid to be concentrated at the liquid collecting tube 8. Finally, the chemical liquid, water or cleaning liquid is collected through the liquid collecting tube 8 and discharged to the outside of the negative pressure box 1.

[0078] like Figures 1 to 7 As shown, the use state of the sampling box structure 10 of the utility model utilizes the annular connecting pipe 31 to be arranged along the inner circumference of the sampling chamber 11, so that multiple nozzles 32 can evenly spray water, cleaning liquid or blow air flow to the inner circumferential wall of the sampling chamber 11, so that the sampling box structure 10 can be cleaned after each use to prevent the accumulation of chemical liquid and its gas on the inner wall of the sampling chamber 11, and at the same time avoid the user from contacting the chemical liquid and its gas remaining in the sampling chamber 11, so as to achieve the advantages of the sampling box structure 10 having the inner circumferential wall of the sampling chamber 11 that can be cleaned and blown dry and the safety of use is improved.

[0079] In addition, a negative pressure channel 14 is further partitioned inside the negative pressure box body 1 and is disposed on one side and the bottom side of the left and right sides of the sampling chamber 11, so as to achieve lateral air extraction relative to the sampling chamber 11 to increase the exhaust efficiency. Moreover, a barrier space 15 that is isolated from the sampling chamber 11 and the negative pressure channel 14 is enclosed between the outer door 12 and the inner door 13 of the negative pressure box body 1, so as to prevent the chemical liquid and its gas in the sampling chamber 11 from entering the barrier space 15, ensure that there is no chemical liquid and its gas in the barrier space 15 between the outer door 12 and the inner door 13, and prevent the chemical liquid and its gas from leaking outside through the outer door 12, thereby further enhancing the use safety of the sampling box structure 10.

[0080] Furthermore, it is known that most sampling boxes adopt a structure in which an outer box covers the outside of an inner box. Therefore, the known sampling box has two top plates arranged at intervals, two rear side plates arranged at intervals, two left side plates arranged at intervals, and two right side plates arranged at intervals. When the chemical liquid input pipe is installed from the upper, rear, left, and right sides of the sampling box, it must pass through the double-layer plates arranged at intervals to be set inside the inner box, resulting in overly complicated installation steps and prone to errors and liquid leakage.

[0081] In contrast, the sampling box structure 10 of the present utility model has only one top wall 111, a rear wall 114, and a second side wall 116. When the chemical liquid input pipe 2, the cleaning liquid input pipe 4, and the positive pressure fluid input pipe 6 are installed from the upper, rear, left, and right sides of the negative pressure box body 1, they only need to pass through one layer of plate to be set inside the sampling chamber 11, so as to achieve the characteristics of simple installation steps and anti-liquid leakage of the sampling box structure 10.

[0082] In addition, the chemical liquid input pipe 2, the cleaning liquid input pipe 4, and the positive pressure fluid input pipe 6 of this embodiment are passed through the top wall 111, but not limited thereto. The chemical liquid input pipe 2, the cleaning liquid input pipe 4, and the positive pressure fluid input pipe 6 can also be passed through the rear wall 114 and the second side wall 116 according to actual needs; similarly, the negative pressure fluid output pipe 5 of this embodiment is passed through the top wall 111, but not limited thereto. The negative pressure fluid output pipe 5 can also be passed through the rear wall 114 and the first side wall 115 according to actual needs.

[0083] In summary, the sampling box structure for chemical equipment of the present utility model can indeed achieve the expected use purpose, solve the known deficiencies, and has practicality, novelty, and creativity, fully meeting the requirements for patent applications. Therefore, an application is filed according to the Patent Law to protect the rights of the applicant.

Claims

1. A sampling box structure for chemical equipment, characterized in that: include: A negative pressure box, with a sampling chamber separated therein and an outer door and an inner door arranged opposite to each other and capable of closing or opening the sampling chamber; A chemical liquid input tube, accommodated in the sampling chamber; a spray module, disposed in the upper inner section of the sampling chamber, the spray module comprising an annular communication pipe arranged along the inner periphery of the sampling chamber and surrounding the outside of the chemical liquid input pipe, and a plurality of nozzles connected to the annular communication pipe; and A cleaning liquid input pipe is connected to the annular connecting pipe.

2. The sampling box structure for chemical equipment according to claim 1, characterized in that: The negative pressure box is internally divided into a negative pressure channel which is arranged on the left and right sides and the bottom side of the sampling chamber.

3. The sampling box structure for chemical equipment according to claim 2, characterized in that: It also includes a negative pressure fluid output tube, which is installed at the inner top of the negative pressure channel. The bottom of the sampling chamber is provided with a plurality of air holes connected with the negative pressure channel.

4. The sampling box structure for chemical equipment according to claim 2, characterized in that: The negative pressure box body has a top wall, a bottom wall, a front wall, a rear wall, a first side wall, a second side wall, a first longitudinal partition arranged between the first side wall and the second side wall and whose outer periphery connects the top wall, the front wall and the rear wall, a transverse partition arranged between the top wall and the bottom wall and whose outer periphery connects the front wall, the rear wall, the second side wall and the first longitudinal partition, and a second longitudinal partition arranged between the front wall and the rear wall and whose outer periphery connects the top wall, the second side wall, the first longitudinal partition and the transverse partition, and a gap is formed between the end of the first longitudinal partition and the bottom wall.

5. The sampling box structure for chemical equipment according to claim 4, characterized in that: The sampling chamber is surrounded by a portion of the top wall, a portion of the rear wall, a portion of the second side wall, a portion of the first longitudinal partition, a portion of the transverse partition and all of the second longitudinal partition.

6. The sampling box structure for chemical equipment according to claim 4, characterized in that: The negative pressure channel is surrounded by another part of the top wall, the entire bottom wall, a part of the front wall, another part of the rear wall, the entire first side wall, the entire first longitudinal partitions and the entire transverse partitions.

7. The sampling box structure for chemical equipment according to claim 4, characterized in that: The remaining part of the top wall, another part of the front wall, another part of the second side wall, another part of the first longitudinal partition, another part of the transverse partition and all of the second longitudinal partitions enclose a blocking space, the second longitudinal partition is provided with an inner opening, the inner door is pivotally connected to the second longitudinal partition and can close or open the inner opening, the front wall is provided with an outer opening that is connected to the blocking space and is arranged opposite to the inner opening, the outer door is pivotally connected to the front wall and can close or open the outer opening.

8. The sampling box structure for chemical equipment according to claim 7, characterized in that: One part of the transverse partition is provided with a plurality of air holes connected to the negative pressure channel at one end and the sampling chamber at the other end, and another part of the transverse partition is provided with a plurality of through holes connected to the negative pressure channel at one end and the blocking space at the other end.

9. The sampling box structure for chemical equipment according to claim 8, characterized in that: The transverse partition includes a base plate and a detachable plate detachably connected to the base plate and corresponding to the sampling chamber. The plurality of air holes are opened from the detachable plate, and the plurality of through holes are opened from the base plate.

10. The sampling box structure for chemical equipment according to claim 4, characterized in that: It further includes a switch valve, which is installed in the negative pressure channel. The switch valve is arranged between the top wall and the bottom wall and the outer periphery is connected to the front wall, the rear wall, the first side wall and the first longitudinal partition. The negative pressure channel is divided into an upper space and a lower space by the switch valve.

11. The sampling box structure for chemical equipment according to claim 10, characterized in that: The switch valve includes a fixed grid whose outer periphery is connected between the front wall, the rear wall, the first side wall and the first longitudinal partition, and a movable grid that can be movably overlapped on the fixed grid. The fixed grid is provided with a plurality of first openings, and the movable grid is provided with a plurality of second openings. The plurality of second openings can follow the movement of the movable grid and overlap or stagger with the plurality of first openings.

12. The sampling box structure for chemical equipment according to claim 10, characterized in that: The first longitudinal partition is provided with a plurality of hollow holes, one end of which is connected to the sampling chamber and the other end of which is connected to the lower space.

13. The sampling box structure for chemical equipment according to claim 12, characterized in that: It also includes a liquid collecting tube, which is installed on the bottom wall. The bottom wall has an inclined slope which is arranged corresponding to the plurality of hollow holes and gradually decreases in height toward the direction approaching the liquid collecting tube.

14. The sampling box structure for chemical equipment according to claim 1, characterized in that: It also includes a positive pressure fluid input pipe, which is connected to the annular connecting pipe.

Images