Lifting type partition structure for blocking diffusion of leaked combustible gas

Abstract

The utility model discloses a lift type partition structure for blocking the diffusion of leaked combustible gas, which comprises a lower support foundation, an upper mounting mechanism, a lift type partition door and a water mist spraying system, the water mist spraying system is arranged along the upper mounting mechanism, the upper mounting mechanism is arranged on the lower support foundation and forms a plurality of channels, and the lift type partition door is arranged on the lower support foundation. Each channel is provided with a lifting type partition door. The lifting type partition door is of a structure that the lifting type partition door is closed after being lifted and opened after being lowered, and all the lifting type partition doors form the whole partition structure together with the upper installation mechanism after being lifted and closed. Therefore, the structure is lighter, the geological requirement is lower, and the construction cost is lower; the device can be opened and closed freely and can be opened upwards to form closed isolation during the operation period of a potential leakage source; during the non-operation period of a leakage source, the roller shutter door is folded downwards, the wind area can be reduced, the roller shutter door is prevented from being damaged by wind, and potential safety hazards are eliminated; and the visual field of the protected area cannot be shielded after being folded.

Description

Technical Field

[0001] The utility model relates to the technical field of safety protection facilities, in particular to a partition structure for blocking the diffusion of leaked combustible gas. Background Art

[0002] With the development of clean energy, the application of flammable gases such as natural gas has been widely promoted, so it is necessary to build corresponding docks, yards and other facilities for receiving and storing flammable gases. However, flammable gases are hazardous chemicals. Once leaked, they spread very quickly, which may cause serious production safety accidents such as fire, deflagration, and explosion. Therefore, how to effectively and timely block the spread of flammable gases after they leak has become a problem that has always plagued the industry. At present, most of the practices in the industry are to build solid concrete wall structures (or partition walls of other materials) at appropriate locations between the area where flammable gases may leak and the protected area, and configure fire-fighting facilities such as water spray and spray. The main disadvantages of this approach are as follows: First, the weight of the solid concrete wall is large, the geological requirements are high, and the project cost is high; second, the partition walls such as solid concrete are fixed and the wind-exposed area is large, especially at the dock, which may need to face typhoons, and there are great safety hazards; third, the fixed partition walls such as solid concrete will block the view of the protected area and are not beautiful. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a lifting partition structure for blocking the spread of leaked combustible gas, which is lighter in weight, lower in cost, can be flexibly opened and closed, can take into account both the barrier function for combustible gas and the usual demand for vision, and can prevent damage caused by strong winds.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a lifting partition structure for blocking the diffusion of leaked combustible gas, characterized in that it includes a lower supporting base, an upper mounting mechanism, a lifting partition door and a water spray mist system, the water spray mist system is arranged along the upper mounting structure, the upper mounting mechanism is arranged on the lower supporting base and forms a plurality of channels, each channel is respectively equipped with a lifting partition door; the lifting partition door adopts a structure that is closed after being raised and opened after being lowered, and after all the lifting partition doors are raised and closed, they form the entire partition structure together with the upper mounting mechanism.

[0005] Furthermore, the lifting partition door adopts a rolling door, and each rolling door is installed at the bottom of the upper mounting mechanism through a rolling door head to form a downwardly rolled structure.

[0006] Furthermore, the upper mounting mechanism includes a partition wall and columns, a plurality of columns are arranged on the lower supporting foundation and extend upward to form a plurality of spans, and channels are formed between adjacent columns; the partition wall is arranged at the bottom of each channel, and the two ends of the partition wall are respectively connected to the columns on its left and right sides.

[0007] Furthermore, the bottom of the rolling door is installed on the partition wall through the rolling door head, and the rolling door is rolled up at the rolling door head after being lowered.

[0008] Furthermore, a crossbeam is installed on the top of the column, each channel corresponds to a crossbeam, and the top of the rolling door is butted against the crossbeam after the rolling door is raised.

[0009] Furthermore, the partition wall includes a lower brick wall and an upper rock wool board wall, the brick wall is built on a lower supporting foundation; the bottom surface of the rock wool board wall is supported on the top of the brick wall by a channel steel beam, and a channel steel beam is also covered on the top of the rock wool board wall. The two ends of the rock wool board wall are respectively covered by channel steel heads, so that the rock wool board wall is embedded in the channel steel structure; the channel steel heads at both ends are respectively connected and fixed to the columns on both sides, and the rolling door head is installed on the channel steel on the top of the rock wool board.

[0010] Furthermore, the water mist spray system is arranged along the barrier wall and the columns to form a spray structure surrounding the bottom and left and right sides of the channel.

[0011] Furthermore, the water mist spray system includes a main water pipe, several branch water pipes and several distribution pipes, and the distribution pipes and branch water pipes are respectively connected to the main water pipe; the main water pipe is arranged along the bottom of the partition wall, the branch water pipes are respectively arranged along the columns, and the distribution water pipes are respectively arranged upward along the partition wall; nozzles are respectively arranged on the main water pipe, the branch water pipes and the distribution water pipes, and the nozzles are horizontally installed toward the leakage source.

[0012] Furthermore, the surface of each rolling door is sprayed with a coating with a fire resistance limit of not less than 2 hours, and the surface of each column and beam is painted with an anti-corrosion and fire-proof coating.

[0013] Furthermore, the columns adopt a steel truss structure, and the span between the columns is 7.5 to 8.0 m.

[0014] Furthermore, the lower supporting foundation adopts concrete bored piles, which are inserted into medium-weathered silty mudstone; pile caps are cast on the tops of the bored piles, adjacent pile caps are connected by concrete connecting beams, and the columns are fixed on the pile caps or the connecting beams.

[0015] The utility model has the following advantages over the prior art: first, compared with the traditional solid concrete wall structure, the utility model is lighter, has lower geological requirements, and has lower engineering costs;

[0016] Second, compared with traditional solid concrete walls or other wall structures, the rolling shutter door of the utility model can be opened and closed freely. During the operation of the potential leakage source, the rolling shutter door is opened upward to form a closed isolation; when the leakage source is not in operation, the rolling shutter door is folded downward to reduce the wind-exposed area, prevent damage by the wind, and eliminate safety hazards;

[0017] Third, when the rolling shutter door is folded, it will not block the view of the protected area and will be more beautiful.

[0018] In addition, installing a water mist system along the bottom of the columns and retaining walls can effectively reduce the accumulation of combustible gases and reduce the risk of flash fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the elevation structure of the utility model;

[0020] Figure 2 It is a partial structural schematic diagram of the water spray mist system of the utility model;

[0021] Figure 3 It is a side view (left side view) of the part of the utility model located above the ground;

[0022] Figure 4 It is a schematic diagram of the combined state of the partition wall and the column;

[0023] Figure 5 for Figure 4 AA cross-section diagram of .

[0024] In the figure, 1 is a cast-in-place pile, 2 is a pile cap, 3 is a connecting beam, 4 is a retaining wall, 41 is a brick wall, 42 is a rock wool board wall, 43 is a channel steel beam, 44 is a channel steel head, 5 is a column, 6 is a rolling door, 61 is a rolling door head, 7 is a cross beam, 8 is a water mist system, 81 is a main water pipe, 82 is a branch water pipe, 83 is a water distribution pipe, and 84 is a sprinkler. DETAILED DESCRIPTION

[0025] In this embodiment, refer to Figure 1-Figure 5 The lifting partition structure for blocking the diffusion of leaked combustible gas includes a lower supporting foundation, an upper mounting mechanism, a lifting partition door and a water spray system 8. The water spray system 8 is arranged along the upper mounting structure. The upper mounting mechanism is arranged on the lower supporting foundation and forms a plurality of channels. Each channel is respectively equipped with a lifting partition door. The lifting partition door adopts a structure of closing after lifting and opening after lowering. After all the lifting partition doors are lifted and closed, they form the entire partition structure together with the upper mounting mechanism.

[0026] The lifting partition door adopts a rolling door 6, which is installed at the bottom of the upper mounting mechanism through a rolling door head to form a downwardly rolled structure. Of course, the rolling door 6 and the rolling door head as well as the rolling and opening methods belong to the prior art and are not described in detail here.

[0027] The upper mounting mechanism includes a barrier wall 4 and columns 5. A plurality of columns 5 are arranged on the lower supporting foundation and extend upward to form a plurality of spans (the number of columns 5 is one more than the number of spans, for example, there are 9 columns, then there are 8 spans, i.e. 8 channels), and channels are formed between adjacent columns 5; the barrier wall 4 is arranged at the bottom of each channel, and the two ends of the barrier wall 4 are respectively connected to the columns 5 on its left and right sides.

[0028] The bottom of the rolling door 6 is installed on the partition wall 4 through the rolling door head 61 (with its own motor). After the rolling door 6 is lowered, it is rolled up at the rolling door head 4, which can be inside the partition wall 4 or close to the partition wall 4.

[0029] The partition wall 4 includes a lower brick wall 41 and an upper rock wool board wall 42. The brick wall 41 is a 240mm cement brick wall built on a lower supporting foundation. The rock wool board wall 42 adopts a 200mm thick metal rock wool sandwich board wall with a fire resistance limit of not less than 2 hours. Its bottom surface is supported on the top of the brick wall 41 through a channel steel beam 43. A channel steel beam 43 is also covered on the top of the rock wool board wall 42. The two ends of the rock wool board wall 42 are respectively covered by channel steel heads 44, so that the rock wool board wall 42 is embedded in the channel steel structure to improve its structural strength. The channel steel heads 44 at both ends are respectively welded and fixed to the columns 5 on both sides, and the rolling door head 61 is installed on the channel steel on the top of the rock wool board 42 (and pressed on the channel steel beam 43 and the channel steel head 44 above).

[0030] A crossbeam 7 is installed at the top of the column 5, and each channel corresponds to a crossbeam 7. After the rolling door 6 is raised, its top is butted against the crossbeam 7, and the crossbeam 7 strengthens and fixes the top of the rolling door 6.

[0031] The water spray mist system 8 is arranged along the partition wall 4 and the pillars 5 to form a spray structure surrounding the bottom and the left and right sides of the channel.

[0032] The water spray mist system 8 includes a main water pipe 81, a plurality of branch water pipes 82 and a plurality of water distribution pipes 83. The water distribution pipes 83 and the branch water pipes 82 are respectively connected to the main water pipe 81, and the main water pipe 81 is connected to an external water source. The main water pipe 81 is arranged along the bottom of the partition wall 4, the branch water pipes 82 are respectively arranged along the pillars 5, and the water distribution pipes 83 are respectively arranged upward along the partition wall 4. The main water pipe 81, the branch water pipes 82 and the water distribution pipes 83 are respectively provided with nozzles 84, and the nozzles 84 are horizontally installed in the direction of the leakage source. The nozzles 84 spray water in the direction of the leakage source, and a water spray belt of about 2m is formed about 1 meter in front of the nozzles 84 to prevent gas accumulation at the root of the rolling door 6 and the local uneven places of the pillars 5.

[0033] The surface of each rolling door 6 is sprayed with a coating with a fire resistance limit of not less than 2 hours, and the surface of each column 5 and beam 7 is painted with an anti-corrosion and fire-proof coating.

[0034] The retaining wall 4 and the columns 5 adopt a steel truss structure, and the span between the columns 5 is 7.5 to 8.0 m.

[0035] The lower supporting foundation adopts a concrete bored pile 1, which is inserted into the medium-weathered silty mudstone; a pile cap 2 is cast on the top of the bored pile 1, and adjacent pile caps 2 are connected by concrete connecting beams 3, and columns 5 are fixed on the pile caps 2 or the connecting beams 3.

[0036] Take the lifting partition structure of a certain project as an example. It is 60 meters long and the upper structure is 12 meters high. Its design and construction includes the following steps:

[0037] 1) According to the location of the potential leakage source and the location of the protected area, it is calculated that the partition structure is set 169 meters behind the potential leakage source. The required partition structure is 60 meters long and the upper structure is 12 meters high, divided into 8 spans;

[0038] 2) According to relevant data, it is determined that the supporting foundation type of the lower part of the partition structure is a cast-in-place pile foundation structure. There are 7 cast-in-place piles 1 with various diameters, 1.1 meters, 1.2 meters, and 1.4 meters respectively; pile caps 2 are cast on the cast-in-place piles 1, and the pile caps 2 are longitudinally connected by cast-in-place connecting beams 3;

[0039] 3) The triangular tube truss column structure is fixed to the pile cap 2 and the connecting beam 3 of the lower supporting foundation. The spacing between the truss columns 5 is mainly 7.5-8.0m. The main vertical rod diameter of the truss column 5 is 180mm, the diagonal rod diameter is 70mm, and Q355B steel is used;

[0040] 4) A rolling shutter door 6 that rolls up from bottom to top is installed between the truss columns 5, and a coating with a fire resistance limit of not less than 2 hours is sprayed on the surface of the rolling shutter door 6; the rolling shutter door 6 adopts a steel fireproof rolling shutter door with a specification of 6.60×9.70m (height). When there is a risk of leakage from the leakage source, the rolling shutter door 6 opens the closed passage from bottom to top to form a closed retaining wall. During non-risk periods, the rolling shutter door 6 is retracted at the bottom to reduce obstruction of the field of vision;

[0041] 5) Install a water spray mist system 8, including a main water pipe 81, a branch water pipe 82, a water distribution pipe 83 and a nozzle 84. The nozzle 84 is respectively arranged at the bottom of the partition structure and each truss column, and horizontally faces the leakage source.

[0042] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present application. All equivalent changes and modifications made within the scope of the present application should still fall within the scope of the present invention.

Claims

1. A lifting partition structure for preventing the diffusion of leaked combustible gas, characterized in that: It includes a lower supporting base, an upper mounting mechanism, a lifting partition door and a water mist spray system. The upper mounting mechanism is arranged on the lower supporting base to form a plurality of channels, and each channel is respectively equipped with a lifting partition door. The lifting partition door adopts a structure of closing after being raised and opening after being lowered. After all the lifting partition doors are raised and closed, they form the entire partition structure together with the upper mounting mechanism. The water mist spray system is arranged along the upper mounting structure.

2. The lifting partition structure for preventing the diffusion of leaked combustible gas according to claim 1 is characterized in that: The lifting partition door adopts a rolling door, and each rolling door is installed at the bottom of the upper installation mechanism through a rolling door head to form a downward rolling structure.

3. The lifting partition structure for preventing the diffusion of leaked combustible gas according to claim 2 is characterized in that: The upper mounting mechanism includes a baffle wall and columns. Several columns are arranged on the lower supporting foundation and extend upward to form several spans, and channels are formed between adjacent columns. The baffle wall is arranged at the bottom of each channel, and the two ends of the baffle wall are respectively connected to the columns on its left and right sides.

4. The lifting partition structure for preventing the diffusion of leaked combustible gas according to claim 3 is characterized in that: The bottom of the rolling door is installed on the partition wall through the rolling door head. After the rolling door is lowered, it is rolled up at the rolling door head. A beam is installed on the top of the column, and each channel corresponds to a beam. After the rolling door is raised, its top is butted against the beam.

5. The lifting partition structure for preventing the diffusion of leaked combustible gas according to claim 3 is characterized in that: The partition wall includes a lower brick wall and an upper rock wool board wall, the brick wall is built on a lower supporting foundation; the bottom surface of the rock wool board wall is supported on the top of the brick wall by a channel steel beam, and a channel steel beam is also covered on the top of the rock wool board wall, and the two ends of the rock wool board wall are respectively covered by channel steel heads, so that the rock wool board wall is embedded in the channel steel structure; the channel steel heads at both ends are respectively connected and fixed to the columns on both sides, and the rolling door head is installed on the channel steel on the top of the rock wool board.

6. The lifting partition structure for preventing the diffusion of leaked combustible gas according to claim 3 is characterized in that: The water spray mist system is arranged along the partition wall and the columns to form a spray structure around the bottom and left and right sides of the channel.

7. The lifting partition structure for preventing the diffusion of leaked combustible gas according to claim 6 is characterized in that: The water mist spray system includes a main water pipe, several branch water pipes and several distribution pipes, and the distribution pipes and branch water pipes are respectively connected to the main water pipe; the main water pipe is arranged along the bottom of the retaining wall, the branch water pipes are respectively arranged along the columns, and the distribution water pipes are respectively arranged upward along the retaining wall; nozzles are respectively arranged on the main water pipe, the branch water pipes and the distribution water pipes, and the nozzles are horizontally installed toward the leakage source.

8. The lifting partition structure for preventing the diffusion of leaked combustible gas according to claim 5 is characterized in that: The surface of each rolling shutter door is sprayed with a coating with a fire resistance limit of not less than 2 hours, and the surface of each column and beam is painted with an anti-corrosion and fire-proof coating.

9. The lifting partition structure for preventing the diffusion of leaked combustible gas according to claim 3 is characterized in that: The columns adopt a steel truss structure, and the span between the columns is 7.5 to 8.0 meters.

10. The lifting partition structure for preventing the diffusion of leaked combustible gas according to claim 3 is characterized in that: The lower supporting foundation adopts concrete bored piles, which are inserted into medium-weathered silty mudstone; pile caps are cast on the tops of the bored piles, adjacent pile caps are connected by concrete connecting beams, and the columns are fixed on the pile caps or the connecting beams.

Images