A multi-layer filtering foam extinguishing agent directional defoaming device

Abstract

The utility model discloses a multilayer filtering formula foam fire extinguishing agent directional defoaming equipment, including defoaming casing and first suction pipe, the defoaming casing upside is equipped with the support structure for to first suction pipe support upside and down deflection and horizontal rotation, one end of first suction pipe is equipped with the pressure heavy balance structure, and the other end of first suction pipe is equipped with third suction pipe, and between first suction pipe and third suction pipe, detachably equipped with a plurality of second suction pipes, and first suction pipe, second suction pipe and third suction pipe all adopt the mode of each other connection of plug -in between each other, through first suction pipe, second suction pipe and third suction pipe adopt detachable plug -in connection, and staff can increase or decrease the second suction pipe quantity to adjust the overall pipeline length according to the distance and height demand of defoaming area, simultaneously, the third suction pipe outside wall distribution several suction holes, can expand the foam suction range, and adapt to the foam area of different area.

Description

Technical Field

[0001] This utility model relates to the field of foam fire extinguishing agent treatment technology, specifically to a multi-layer filter-type foam fire extinguishing agent directional defoaming device. Background Technology

[0002] Foam extinguishing agents are among the most commonly used fire extinguishing agents. They extinguish fires by coating the surface of the burning material, forming a sealed layer that isolates the air and lowers the surface temperature. After using foam extinguishing equipment, large amounts of foam tend to accumulate in the pits and depressions on the bottom and the surface of the burning material, making subsequent treatment of the burning material inconvenient and requiring waiting for the foam to dissipate. During foam extinguishing agent foaming experiments, the extinguishing agent is often sprayed into a specific container or area. Relying solely on the natural dissipation of the foam would be time-consuming, extending the experimental time and reducing efficiency.

[0003] A foam extinguishing agent defoaming device with publication number CN218076516U includes a defoaming rod and a negative pressure connecting pipe. The defoaming rod is a hollow tube with one end closed, and the negative pressure connecting pipe is disposed at the other end of the defoaming rod. The surface of the defoaming rod is formed with a plurality of defoaming holes, which are evenly distributed on the surface of the defoaming rod. A flow collecting hood is disposed between the negative pressure connecting pipe and the defoaming rod, and the flow collecting hood is a hollow disc.

[0004] A foam extinguishing agent defoaming device with publication number CN213965282U includes a foam tank manhole pipe and a top cover. The top cover is coaxially fixed to the top surface of the foam tank manhole pipe. A mating hole is vertically opened in the middle of the top surface of the top cover. A support rod is vertically slidably fitted in the mating hole. An installation plate is horizontally fixed to the bottom end of the support rod extending out of the bottom surface of the top cover. A hollow float is fixed in the middle of the bottom surface of the installation plate.

[0005] Current defoaming devices cannot adjust the operating distance and height as needed, making it difficult to precisely target localized foam. Utility Model Content

[0006] The purpose of this invention is to solve the above-mentioned problems by providing a multi-layer filter-type foam fire extinguishing agent directional defoaming device, which aims to overcome the defects of the prior art, as detailed below.

[0007] To achieve the above objectives, the present invention provides the following technical solution: This utility model provides a multi-layer filter foam extinguishing agent directional defoaming device, including a defoaming shell and a first suction pipe. The upper side of the defoaming shell is provided with a support structure for supporting the vertical deflection and horizontal rotation of the first suction pipe. One end of the first suction pipe is provided with a weight balance structure, and the other end of the first suction pipe is provided with a third suction pipe. Several second suction pipes are detachably provided between the first suction pipe and the third suction pipe. The first suction pipe, the second suction pipe and the third suction pipe are all connected to each other by a plug-in connection. The support structure is provided with a traction structure for applying force to the third suction tube toward the first suction tube. The defoaming shell is provided with a vacuum pump for connecting the first suction tube and the defoaming shell to each other. The outlet of the vacuum pump is provided with a multi-layer filter box structure. The first suction tube is provided with a weight balance structure.

[0008] Preferably, the defoaming shell has a first cavity, a second cavity, and a third cavity arranged from bottom to top inside. The first cavity is used to store the liquid generated by suction, the second cavity is used to detachably place a multi-layer filter box structure, and the third cavity is used to install a vacuum pump.

[0009] Preferably, the inlet of the vacuum pump is connected to one end of a corrugated tube, and the other end of the corrugated tube is connected to the first suction tube.

[0010] Preferably, the multi-layer filter box structure includes a box body with a central channel extending through it. Connecting pipes are slidably provided at the upper and lower ends of the central channel. A spring is provided between the two connecting pipes. Several first docking channels are provided at one end of each of the two connecting pipes close to each other. A filter cavity is formed inside the box body, and several filter filling layers are provided inside the filter cavity. Second docking channels corresponding to the first docking channels are respectively provided on the upper and lower sides of the box body.

[0011] Preferably, the support structure includes a U-shaped frame with the U-shaped opening facing upwards. A rotating cylinder sleeved on the outside of the wave tube is fixedly connected to the lower side of the U-shaped frame, and the lower end of the rotating cylinder is rotatably mounted on the upper side of the defoaming shell.

[0012] Preferably, the outer wall of the third suction tube is provided with a plurality of suction holes, and a shoulder is provided on the outer side of one end of the third suction tube.

[0013] Preferably, the traction structure has two distributed on both sides of the support structure, and the traction structure includes an electric hoist fixedly mounted on the support structure, with a traction rope attached to the electric hoist. The traction structure also includes a detachable collar sleeved on the outside of the third suction tube. The collar has lugs fixed on both sides, and the ends of the two traction ropes are fixedly connected to the lugs.

[0014] Preferably, the counterweight balancing structure includes a support platform fixedly mounted on the first suction tube, two parallel support shafts fixedly mounted on the upper side of the support platform, several counterweight blocks stacked vertically detachably mounted on the support shafts, and handles fixedly mounted on both sides of the support platform.

[0015] Preferably, the second suction tube is cylindrical in shape, with an inner ring at one end and a handle fixedly attached to the outside of the second suction tube.

[0016] Preferably, the second cavity has an inlet and outlet on one side, and the opening edge of the inlet and outlet has a guide notch for engaging with the connecting pipe.

[0017] The beneficial effects are: 1. The first, second and third suction tubes are detachably connected. The staff can adjust the overall pipe length by increasing or decreasing the number of second suction tubes according to the distance and height requirements of the defoaming area. At the same time, several suction holes are distributed on the outer wall of the third suction tube, which can expand the foam suction range and adapt to foam areas of different sizes. 2. The support structure on the upper side of the defoaming shell can support the first suction tube to achieve vertical deflection and horizontal rotation. Combined with the operator's operation of holding the handle, the defoaming direction and height of the third suction tube can be precisely adjusted, and targeted defoaming can be performed on specific locations such as pits and depressions, solving the problem that existing devices are difficult to accurately act on local foam. 3. The defoaming shell has a first chamber, a second chamber and a third chamber from bottom to top. The liquid filtered by the multi-layer filter box structure falls naturally into the first chamber for storage. It can be discharged and recycled through the drain pipe, which avoids liquid waste, prevents residue from polluting the environment and improves resource utilization. 4. The pressure balance structure on the first suction pipe can adjust the pressure according to the overall weight of the pipeline through the detachable stackable pressure blocks on the support shaft, so that the pipeline can achieve gravity balance with the support structure as the fulcrum. The operator does not need to exert extra force to maintain the stability of the pipeline, reducing the intensity of operation. 5. The traction structures on both sides of the support structure can apply a traction force to the third suction tube towards the first suction tube, ensuring that all pipe joints fit tightly and preventing negative pressure leakage; at the same time, an inlet and outlet are opened on one side of the second cavity, allowing staff to easily remove and place the multi-layer filter box structure for replacement and cleaning of the filter filling layer. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is the front view of this utility model; Figure 2 This is a utility model Figure 1 Enlarged view of a portion at point A; Figure 3 This is a utility model Figure 1 First-direction stereoscopic view; Figure 4 This is a utility model Figure 3 A magnified view of section B; Figure 5 This is a utility model Figure 1 The second-direction stereoscopic view; Figure 6 This is a perspective view of the second suction tube of this utility model.

[0020] The reference numerals in the attached drawings are explained as follows: 1. Defoaming shell; 101. First cavity; 102. Second cavity; 103. Third cavity; 104. Caster wheel; 105. Drain pipe; 106. Guide notch; 107. Inlet / outlet; 2. Multi-layer filter box structure; 201. Box body; 202. Filter chamber; 203. Filter filling layer; 204. Central channel; 205. Connecting pipe; 206. Spring; 207. First connecting channel; 208. Second connecting channel; 3. Support Structure; 301, U-shaped frame; 302, rotating drum; 4, vacuum pump; 401, corrugated pipe; 5, first suction pipe; 6, second suction pipe; 601, handle; 7, third suction pipe; 701, suction hole; 702, shoulder; 8, traction structure; 801, electric hoist; 802, traction rope; 803, collar; 804, support lug; 9, counterweight balance structure; 901, support platform; 902, support shaft; 903, counterweight block; 10, handle; 11, inner collar. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] See Figures 1-6 As shown, this utility model provides a multi-layer filter-type foam extinguishing agent directional defoaming device, including a defoaming shell 1 and a first suction pipe 5. Four or more universal wheels 104 are evenly distributed along the bottom edge of the defoaming shell 1 to support its movement. A support structure 3 is provided on the upper side of the defoaming shell 1 to support the vertical deflection and horizontal rotation of the first suction pipe 5. A weight balance structure 9 is provided at one end of the first suction pipe 5, and a third suction pipe 7 is provided at the other end. Several second suction pipes 6 are detachably provided between the first suction pipe 5 and the third suction pipe 7. A handle 601 is fixedly provided on the outer side of each second suction pipe 6. The first suction pipe 5, second suction pipe 6, and third suction pipe 7 are all connected to each other by a plug-in connection. Specifically, one end of each of the first suction pipe 5, second suction pipe 6, and third suction pipe 7 is provided with an inner collar 11. In practical applications, the outer contours of the first suction pipe 5, second suction pipe 6, and third suction pipe 7 are all cylindrical.

[0023] The support structure 3 is provided with a traction structure 8 for applying traction force to the third suction pipe 7 toward the first suction pipe 5. The defoaming shell 1 is provided with a vacuum pump 4 for connecting the first suction pipe 5 and the defoaming shell 1 to each other. The outlet of the vacuum pump 4 is provided with a multi-layer filter box structure 2. The first suction pipe 5 is provided with a weight balance structure 9.

[0024] See instruction manual attached Figure 1 and Figure 5As shown, the defoaming housing 1 has a first cavity 101, a second cavity 102, and a third cavity 103 arranged sequentially from bottom to top. The first cavity 101 is used to store the liquid generated by suction. During the defoaming process, the liquid filtered by the multi-layer filter box structure 2 will naturally fall and collect in the first cavity 101, realizing the separation and storage of liquid from foam residue and impurities. Subsequently, the stored liquid can be discharged through the drain pipe 105 on the defoaming housing, completing the liquid collection and recycling process. The second cavity 102 is used to detachably house the multi-layer filter box structure 2. One side of the second cavity 102 has an opening The second cavity 102 has an inlet / outlet 107, with a guide notch 106 at the opening edge for engaging with the connecting pipe 205. Workers can easily access the multi-layer filter box structure 2 through the inlet / outlet 107 on one side of the second cavity 102 for replacing, cleaning, or maintaining the filter filling layer 203. Simultaneously, the guide notch 106 at the opening edge of the inlet / outlet 107 engages with the connecting pipe 205 of the multi-layer filter box structure 2, ensuring precise positioning during installation and guaranteeing the sealing of the filter channel. The third cavity 103 is used to install the vacuum pump 4. The inlet of the vacuum pump 4 is connected to one end of a corrugated tube 401, and the other end of the corrugated tube 401 is connected to the first suction tube 5. The core function of the corrugated tube 401 is to accommodate the vertical deflection and horizontal rotation of the first suction tube 5. The corrugated tube 401 can flexibly deform with the movement of the first suction tube 5, which not only ensures the sealing of the suction channel, but also does not restrict the position adjustment of the first suction tube 5, ensuring that the negative pressure generated by the vacuum pump 4 can be stably transmitted to the first suction tube 5.

[0025] See instruction manual attached Figure 1 and Figure 2 As shown, the multi-layer filter box structure 2 includes a box body 201, with a central channel 204 extending through the box body 201. Connecting pipes 205 are slidably disposed at the upper and lower ends of the central channel 204. A spring 206 is disposed between two connecting pipes 205. Several first connecting channels 207 are formed at the ends of the two connecting pipes 205 close to each other. A filter chamber 202 is formed within the box body 201, and several filter filling layers 203 are disposed within the filter chamber 202. These layers can be filled with metal filters, activated carbon filters, porous filter cotton, etc. Second connecting channels 208, corresponding to the first connecting channels 207, are respectively formed on the upper and lower sides of the box body 201. Through this specific structural design, when the multi-layer filter box structure 2 is installed into the second cavity 102 of the defoaming shell 1, the connecting pipes 205 on the upper and lower sides will contact and be pressurized with the outlet pipe of the vacuum pump 4 and the connecting pipe of the first cavity 101. The connecting pipe 205 slides inward along the central channel 204, and the spring 206 is compressed; at this time, the first docking channel 207 on the connecting pipe 205 is precisely aligned with the second docking channel 208 of the box body 201, forming a complete fluid channel.

[0026] See instruction manual attached Figure 1 and Figure 5 As shown, the support structure 3 includes a U-shaped frame 301 with the U-shaped opening facing upward. A rotating cylinder 302, which is sleeved on the outside of the wave tube 401, is fixedly connected to the lower side of the U-shaped frame 301. The lower end of the rotating cylinder 302 is rotatably mounted on the upper side of the defoaming shell 1.

[0027] See instruction manual attached Figure 3 and Figure 4 As shown, a plurality of suction holes 701 are distributed on the outer side wall of the third suction tube 7, and a shoulder 702 is provided on the outer side of one end of the third suction tube 7.

[0028] See instruction manual attached Figure 3 , Figure 4 and Figure 5 As shown, the traction structure 8 has two sections distributed on both sides of the support structure 3. The traction structure 8 includes an electric hoist 801 fixedly mounted on the support structure 3, with a traction rope 802 mounted on the electric hoist 801. The traction structure 8 also includes a detachable collar 803 fitted around the outside of the third suction pipe 7. Support ears 804 are fixedly mounted on both sides of the collar 803, and the ends of the two traction ropes 802 are respectively fixedly connected to the support ears 804. In practical applications, the first suction pipe 5, the second suction pipe 6, and the third suction pipe 7 are connected by a plug-in connection. The traction structure 8 applies a pulling force towards the first suction pipe 5 to the third suction pipe 7 by retracting the traction rope 802 through the electric hoist 801. This pulling force ensures a tight fit at the plug-in joints of each pipe section, preventing loosening due to the pipe's own weight, suction negative pressure, or operational collisions, and preventing negative pressure leakage from affecting defoaming efficiency.

[0029] See instruction manual attached Figure 3 As shown, the weight balancing structure 9 includes a support platform 901 fixedly mounted on the first suction pipe 5. Two parallel support shafts 902 are fixedly mounted on the upper side of the support platform 901. Several stacked weight blocks 903 are detachably mounted on the support shafts 902. Handles 10 are fixedly mounted on both sides of the support platform 901. In practical applications, the weight balancing structure 9 adjusts the weight at the end of the first suction pipe 5 by adding weight blocks 903 to the support shafts 902, allowing the pipe to achieve a state of gravity balance with the support structure 3 as the fulcrum. For example, when adding a second suction pipe 6 increases the weight at the end of the third suction pipe 7, the number of weight blocks 903 can be increased to lift the weight at the end of the first suction pipe 5, offsetting the gravity deviation at the other end. This eliminates the need for workers to exert extra force to maintain pipe balance, reducing operational intensity.

[0030] Working principle: In use, the operator first inserts the first suction pipe 5, the second suction pipe 6, and the third suction pipe 7 together. The number of second suction pipes 6 is determined according to the overall required length. The collar 803 is placed on the outside of the third suction pipe 7, and the end of the collar 803 abuts against the shoulder 702. The electric hoist 801 winds up the traction rope 802, changing the traction rope 802 from a loose state to a taut state. This also achieves a stable connection between the first suction pipe 5, the second suction pipe 6, and the third suction pipe 7. It should be noted that the number of counterweights 903 can be selected according to the number of second suction pipes 6 installed, so that the entire pipeline can achieve gravity balance with the support structure 3 as the support point, which is convenient and labor-saving for the operator. The operator can hold the handle 10 to operate the first suction tube 5, thereby adjusting the defoaming direction and height of the third suction tube 7 under the support of the bracket structure 3. The vacuum pump 4 sequentially sucks up the foam through the wave tube 401, the first suction tube 5, the second suction tube 6 and the third suction tube 7, and after being filtered through the multi-layer filter box structure 2, the resulting liquid falls into the first cavity 101 for storage, and can finally be discharged through the drain pipe 105, which is equipped with a solenoid valve for controlling its opening and closing.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A multi-layer filter-type foam extinguishing agent directional defoaming device, characterized in that: It includes a defoaming shell (1) and a first suction tube (5). The upper side of the defoaming shell (1) is provided with a support structure (3) for supporting the first suction tube (5) to deflect vertically and rotate horizontally. One end of the first suction tube (5) is provided with a weight balance structure (9). The other end of the first suction tube (5) is provided with a third suction tube (7). Several second suction tubes (6) are detachably provided between the first suction tube (5) and the third suction tube (7). The first suction tube (5), the second suction tube (6) and the third suction tube (7) are all connected to each other by plugging. The support structure (3) is provided with a traction structure (8) for applying traction force to the third suction tube (7) towards the first suction tube (5). The defoaming shell (1) is provided with a vacuum pump (4) for connecting the first suction tube (5) and the defoaming shell (1) to each other. The outlet of the vacuum pump (4) is provided with a multi-layer filter box structure (2). The first suction tube (5) is provided with a pressure balance structure (9).

2. The multi-layer filter-type foam extinguishing agent directional defoaming device according to claim 1, characterized in that: The defoaming housing (1) has a first cavity (101), a second cavity (102) and a third cavity (103) arranged from bottom to top. The first cavity (101) is used to store the liquid generated by suction, the second cavity (102) is used to detachably place the multi-layer filter box structure (2), and the third cavity (103) is used to install the vacuum pump (4).

3. A multi-layer filter-type foam extinguishing agent directional defoaming device according to claim 1 or 2, characterized in that: The inlet of the vacuum pump (4) is connected to one end of a wave tube (401), and the other end of the wave tube (401) is connected to the first suction tube (5).

4. The multi-layer filter-type foam extinguishing agent directional defoaming device according to claim 1, characterized in that: The multi-layer filter box structure (2) includes a box body (201), a central channel (204) is provided through the box body (201), a connecting pipe (205) is slidably provided at the upper and lower ports of the central channel (204), a spring (206) is provided between the two connecting pipes (205), and a plurality of first connecting channels (207) are provided at one end of the two connecting pipes (205) respectively. A filter cavity (202) is formed in the box body (201), and a plurality of filter filling layers (203) are provided in the filter cavity (202). Second connecting channels (208) corresponding to the first connecting channels (207) are respectively provided on the upper and lower sides of the box body (201).

5. The multi-layer filter-type foam extinguishing agent directional defoaming device according to claim 3, characterized in that: The support structure (3) includes a U-shaped frame (301), with the U-shaped opening of the U-shaped frame (301) facing upward. A rotating cylinder (302) sleeved on the outside of the wave tube (401) is fixedly connected to the lower side of the U-shaped frame (301), and the lower end of the rotating cylinder (302) is rotatably set on the upper side of the defoaming shell (1).

6. The multi-layer filter-type foam extinguishing agent directional defoaming device according to claim 1, characterized in that: The outer wall of the third suction tube (7) is provided with a plurality of suction holes (701), and a shoulder (702) is provided on the outer side of one end of the third suction tube (7).

7. The multi-layer filter-type foam extinguishing agent directional defoaming device according to claim 1, characterized in that: The traction structure (8) is provided with two distributed on both sides of the support structure (3). The traction structure (8) includes an electric hoist (801) fixedly installed on the support structure (3), and a traction rope (802) is provided on the electric hoist (801). The traction structure (8) also includes a collar (803) that can be detachably sleeved on the outside of the third suction tube (7). The collar (803) has lugs (804) fixed on both sides, and the ends of the two traction ropes (802) are fixedly connected to the lugs (804) respectively.

8. The multi-layer filter-type foam extinguishing agent directional defoaming device according to claim 1, characterized in that: The weight balance structure (9) includes a support platform (901) fixedly installed on the first suction tube (5). Two parallel support shafts (902) are fixedly installed on the upper side of the support platform (901). Several weight blocks (903) stacked vertically are detachably installed on the support shafts (902). Handles (10) are fixedly installed on both sides of the support platform (901).

9. The multi-layer filter-type foam extinguishing agent directional defoaming device according to claim 1, characterized in that: The second suction tube (6) is cylindrical in shape. One end of the second suction tube (6) is provided with an inner sleeve (11), and a handle (601) is fixedly provided on the outside of the second suction tube (6).

10. The multi-layer filter-type foam extinguishing agent directional defoaming device according to claim 2, characterized in that: The second cavity (102) has an inlet and outlet (107) on one side, and the opening edge of the inlet and outlet (107) is provided with a guide notch (106) for abutting and cooperating with the connecting pipe (205).

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