Pump house foreign matter blocking prevention system

Abstract

The utility model relates to the technical field of rail transit sewage treatment, in particular to a foreign matter blocking prevention system for a pump room. According to the foreign matter blocking prevention system for the pump house, when foreign matters such as plastic bags, silt, calcium carbonate and leaves are mixed in water flow and flow to a pipe opening of the pump house in a running tunnel drainage ditch, the foreign matters firstly pass through a semi-protective grating, and if too many foreign matters are accumulated in the semi-protective grating and the water passing area of the grating is insufficient, the foreign matters are blocked; water flow can rapidly pass through the upper portion of the semi-protection grid. And if the foreign matters still pass through the semi-protection grating, the full-protection grating blocks the foreign matters outside the pipe orifice of the pump room again. And if the foreign matters still pass through the full-protection grating at the moment, when the foreign matters are blown to the pipe orifice of the water inlet of the pump room, the three-dimensional grating at the pipe orifice can be used for blocking and filtering again, so that effective blockage prevention is realized. Meanwhile, impurities such as silt and calcium carbonate can be deposited again through the sand sediment trap at the pipe opening, and smoothness of the pipe opening of the water inlet of the pump room is guaranteed. The utility model has the advantage of ensuring the water passing area of the drainage facility.

Description

TECHNICAL FIELD

[0001] The utility model relates to rail transit sewage treatment technical field, especially a kind of pump house prevents foreign matter blockage system. BACKGROUND

[0002] In the operation, maintenance and repair process of rail transit underground tunnel, fire-fighting wastewater, structural leakage water and underground station wastewater will appear, for section wastewater, generally adopt the form of setting up contact passage and pump house at the lowest point of section tunnel V-shaped slope to discharge, and for station wastewater, generally adopt the form of setting up sewage pump house at the head or tail of station platform to discharge.The main drainage principle is that wastewater is collected to water accumulation pit in front of pump house through drainage ditch on both sides of track, then is drained to wastewater pump house through buried drainage pipe, and finally is discharged to ground drainage system after being lifted by water pump.

[0003] In order to prevent garbage and other sundries at section tunnel or station platform from blocking the water inlet in front of pump house, grating is usually set at drainage ditch and water inlet of pump house.The above-mentioned grating plays a role of filtering garbage and other sundries to block buried pipe of pump house to some extent, but there is a hidden danger that flexible sundries such as plastic bag float and cover on grating, causing poor drainage.In addition, sediment such as silt, calcium carbonate and garbage in wastewater will gradually deposit at grating over time, causing reduction of water passing area of drainage facility, resulting in poor drainage, and even causing water-flooded track bed and affecting normal operation of train, causing loss.Meanwhile, if sediment and other sundries are deposited in buried drainage pipe in front of pump house, it will bring inconvenience to later dredging and maintenance of pipe opening.

[0004] Therefore, a pump house foreign matter blockage prevention system is provided to overcome the deficiencies of prior art. UTILITY MODEL CONTENTS

[0005] In order to overcome the deficiencies of prior art, the utility model provides a pump house foreign matter blockage prevention system, which aims to solve the problem that grating is easily covered and blocked by sundries such as plastic bag, leaf and silt, causing reduction of water passing area of drainage facility.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] A pump house foreign matter blockage prevention system, comprising: semi-protective grating, full-protective grating, three-dimensional grating and silt settling well.

[0008] The semi-protective grating and the full-protective grating are sequentially arranged at drainage ditch along the direction of water flow, the three-dimensional grating is located at water inlet pipe opening, and the silt settling well is located below the three-dimensional grating.

[0009] The full-protective grating is higher than the semi-protective grating.

[0010] As a further improvement of the utility model technical scheme, the half protection grating further includes a first grating rod body, a first barb and a first fixed ear support, the first barb is located on the upper end of the first grating rod body, and the first fixed ear support is fixedly connected with the first grating rod body.

[0011] As a further improvement of the utility model technical scheme, the full protection grating further includes a second grating rod body, a second barb and a second fixed ear support, the second barb is located on the upper end of the second grating rod body, and the second fixed ear support is fixedly connected with the second grating rod body.

[0012] As a further improvement of the utility model technical scheme, the three-dimensional grating is provided with a third grating rod body, a third barb and a third fixed ear support, the third barb is located on the outer surface of the third grating rod body, and the third fixed ear support is fixedly connected with the third grating rod body.

[0013] As a further improvement of the utility model technical scheme, the distance between the half protection grating and the full protection grating is 5m-10m.

[0014] The half protection grating includes a first half protection grating and a second half protection grating, and the distance between the first half protection grating and the second half protection grating is 3m-7m.

[0015] As a further improvement of the utility model technical scheme, the distance between adjacent first barbs is 50mm-75mm.

[0016] As a further improvement of the utility model technical scheme, the distance between adjacent second barbs is 50mm-75mm.

[0017] As a further improvement of the utility model technical scheme, the third grating rod body is provided with the third barb in the vertical direction at the front face at a distance of 50mm-100mm and is provided with the third barb in the horizontal direction at a distance of 100mm-200mm.

[0018] The third grating rod body is provided with the third barb in the vertical direction at the side face at a distance of 50mm-100mm.

[0019] As a further improvement of the utility model technical scheme, the length of the sand well is 450mm-500mm, the width is 150mm-200mm, and the depth is 200mm-250mm.

[0020] As a further improvement of the utility model technical scheme, the half protection grating, the full protection grating and the three-dimensional grating are all made of stainless steel material, and the rod diameter is 1mm-5mm.

[0021] Compared with the prior art, the utility model has the advantages that:

[0022] The pump house foreign matter blocking prevention system has the characteristics of ensuring the water passing area of the drainage facility. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model discloses a pump house foreign matter blocking prevention system, which is characterized by the following aspects.

[0024] Figure 1 It is the structural schematic diagram of the pump house foreign matter blocking prevention system of the utility model;

[0025] Figure 2 It is the structural schematic diagram of the half protection grille in the pump house foreign matter blocking prevention system of the utility model;

[0026] Figure 3 It is the structural schematic diagram of the full protection grille in the pump house foreign matter blocking prevention system of the utility model;

[0027] Figure 4 It is the structural schematic diagram of the three-dimensional grille in the pump house foreign matter blocking prevention system of the utility model.

[0028] In the drawing:

[0029] 1, half protection grille, 11, first grille rod body, 12, first barb, 13, first fixed ear support,

[0030] 2, full protection grille, 21, second grille rod body, 22, second barb, 23, second fixed ear support,

[0031] 3, three-dimensional grille, 31, third grille rod body, 32, third barb, 33, third fixed ear support 4, sand trap, 5, drainage ditch, 6, water inlet pipe. DETAILED DESCRIPTION

[0032] The concept, specific structure and generated technical effects of the utility model will be clearly and completely described below in combination with the embodiments and drawings, so as to fully understand the purpose, scheme and effect of the utility model. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The same reference signs used in the drawings indicate the same or similar parts.

[0033] It should be noted that, unless otherwise specified, when a certain feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right and other descriptions used in the present application are only relative to the mutual position relationship of the components of the present application in the drawings.

[0034] Referring to Figures 1 to 4 A pump house anti-foreign matter blocking system comprises a semi-protection grille 1, a full-protection grille 2, a three-dimensional grille 3 and a sand trap 4.

[0035] In an embodiment, the semi-protection grille 1 and the full-protection grille 2 are sequentially arranged at the drainage ditch 5 along the direction of water flow, the three-dimensional grille 3 is located at the water inlet pipe opening 6, and the sand trap 4 is located below the three-dimensional grille 3; the full-protection grille 2 is higher than the semi-protection grille 1. Preferably, in order to overcome the problems that the original grille is prone to rust and difficult to maintain, the semi-protection grille 1, the full-protection grille 2 and the three-dimensional grille 3 are all made of stainless steel, and the rod diameter is 3 mm, thereby reducing the risk of grille rust and reducing the maintenance workload in the later period.

[0036] When the interval tunnel drainage ditch 5 has plastic bags, mud, calcium carbonate, leaves and other foreign matters mixed in the water flow and flowing to the pump house pipe opening, the water flow will first pass through the semi-protection grille 1. If the semi-protection grille 1 accumulates too many foreign matters at this time, causing insufficient water area of the grille, the water flow can quickly pass through the upper part of the semi-protection grille 1. If the foreign matters still pass through the semi-protection grille 1 at this time, the full-protection grille 2 will block the foreign matters outside the pump house pipe opening again. If the foreign matters still pass through the full-protection grille 2 at this time, the three-dimensional grille 3 at the pump house water inlet pipe opening 6 can block and filter again when the foreign matters blow to the pipe opening, thereby effectively preventing blocking. At the same time, the sand trap 4 at the pipe opening can again deposit mud, calcium carbonate and other impurities, thereby ensuring the smoothness of the pump house water inlet pipe opening 6. The maintenance work of the pump house is reduced. The pump house anti-foreign matter blocking system has the characteristics of ensuring the water area of the drainage facility. By arranging the pump house anti-foreign matter blocking system at the pump house water inlet, the hidden danger of water overflowing the roadbed caused by the blocking of the pump house by foreign matters can be effectively eliminated, and the safety of driving is ensured. Not only can the problem of mud, leaves and other foreign matters blocking the pump house water inlet pipe opening 6 be effectively prevented, but also the problem of flexible foreign matters such as plastic bags covering the pipe opening grille can be effectively prevented, thereby causing the safety event of poor drainage and water overflowing the roadbed, and the maintenance workload is reduced.

[0037] In one embodiment, referring to Figure 2 As shown, the half-protection grid 1 further comprises a first grid rod body 11, a first barb 12 and a first fixed ear 13, the first barb 12 is located at the upper end of the first grid rod body 11, and the first fixed ear 13 is fixedly connected with the first grid rod body 11. The distance between the half-protection grid 1 and the full-protection grid 2 is 5m-10m; the half-protection grid 1 comprises a first half-protection grid 1 and a second half-protection grid 1, and the distance between the first half-protection grid 1 and the second half-protection grid 1 is 3m-7m. The distance between adjacent first barbs 12 is 50mm-75mm. After the first grid rod body 11 is initially fixed in the drainage ditch 5, 6mm diameter expansion screws are driven into the expansion screw holes in the first fixed ears 13 on both sides to achieve firm fixation.

[0038] In one embodiment, referring to Figure 3 As shown, the full-protection grid 2 further comprises a second grid rod body 21, a second barb 22 and a second fixed ear 23, the second barb 22 is located at the upper end of the second grid rod body 21, and the second fixed ear 23 is fixedly connected with the second grid rod body 21. The distance between adjacent second barbs 22 is 50mm-75mm. After the second grid rod body 21 is initially fixed in the drainage ditch 5, 6mm diameter expansion screws are driven into the expansion screw holes in the second fixed ears 23 on both sides to achieve firm fixation.

[0039] In one embodiment, referring to Figure 4 As shown, the three-dimensional grid 3 is provided with a third grid rod body 31, a third barb 32 and a third fixed ear 33, the third barb 32 is located on the outer surface of the third grid rod body 31, and the third fixed ear 33 is fixedly connected with the third grid rod body 31. The three-dimensional grid 3 is upgraded from the original one-side water flow to five-side water flow, greatly increasing the drainage area, reducing the maintenance workload, and effectively reducing the risk of plastic bag covering grid blockage. A third barb 32 is arranged in the vertical direction at a distance of 50mm-100mm on the front face of the third grid rod body 31, and a third barb 32 is arranged in the horizontal direction at a distance of 100mm-200mm. A third barb 32 is arranged in the vertical direction at a distance of 50mm-100mm on the side face of the third grid rod body 31, and the position of the side barb can be adjusted according to the site, with a certain flexible space. After the third grid rod body 31 is initially fixed at the pump house water inlet pipe 6, 6mm diameter expansion screws are driven into the expansion screw holes in the third fixed ears 33 on both sides to achieve firm fixation.

[0040] In one embodiment, the first barb 12, the second barb 22 and the third barb 32 can hook the flexible debris such as plastic bags flowing to the pipe opening, effectively preventing the problem of plastic bags and other flexible debris covering and blocking the pipe opening and pipeline.

[0041] In one embodiment, the sand trap 4 is arranged at the pump house water inlet pipe orifice 6, the length of the sand trap 4 is 450mm-500mm, the width is 150mm-200mm, and the depth is 200mm-250mm, which is larger and deeper than the original water accumulation pit, and effectively prevents the flow of silt, calcium carbonate and other sediments into the pump house underground pipe.

[0042] Other contents of the pump house foreign matter blocking system are described in the prior art, and will not be described here.

[0043] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form, so any modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model, which does not deviate from the technical solution content of the utility model, still belongs to the scope of the technical solution of the utility model.

[0044] In addition, the terms "first", "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one feature. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0045] In the utility model, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

Claims

1. A pump room anti-foreign object blockage system, characterized in that, include: Semi-protective bar screens, fully protective bar screens, three-dimensional bar screens, and sedimentation wells; The semi-protective grille and the full-protective grille are sequentially installed in the drainage ditch along the direction of water flow, the three-dimensional grille is located at the inlet pipe, and the sedimentation well is located below the three-dimensional grille; The full protective grille is higher than the semi-protective grille.

2. The pump room anti-foreign object blockage system according to claim 1, characterized in that, The semi-protective grille also includes a first grille rod, a first barb, and a first fixing ear support. The first barb is located at the upper end of the first grille rod, and the first fixing ear support is fixedly connected to the first grille rod.

3. The pump room anti-foreign object blockage system according to claim 1, characterized in that, The full protective grille also includes a second grille rod, a second barb, and a second fixing lug. The second barb is located at the upper end of the second grille rod, and the second fixing lug is fixedly connected to the second grille rod.

4. The pump room anti-foreign object blockage system according to claim 1, characterized in that, Each of the three-dimensional grids is provided with a third grid rod, a third barb, and a third fixing lug. The third barb is located on the outer surface of the third grid rod, and the third fixing lug is fixedly connected to the third grid rod.

5. A pump room anti-foreign object blockage system according to claim 1, characterized in that, The distance between the semi-protective grille and the full-protective grille is 5m-10m; The semi-protective grille includes a first semi-protective grille and a second semi-protective grille, with a distance of 3m-7m between the first and second semi-protective grilles.

6. A pump room anti-foreign object blockage system according to claim 2, characterized in that, The distance between adjacent first barbs is 50mm-75mm.

7. A pump room anti-foreign object blockage system according to claim 3, characterized in that, The distance between adjacent second barbs is 50mm-75mm.

8. A pump room anti-foreign object blockage system according to claim 4, characterized in that, A third barb is provided at a vertical distance of 50mm-100mm on the front of the third grid bar body, and a third barb is provided at a horizontal distance of 100mm-200mm. A third barb is provided at a vertical distance of 50mm-100mm from the side of the third grid bar.

9. A pump room anti-foreign object blockage system according to claim 1, characterized in that, The sedimentation well has a length of 450mm-500mm, a width of 150mm-200mm, and a depth of 200mm-250mm.

10. A pump room anti-foreign object blockage system according to claim 1, characterized in that, The semi-protective grille, full-protective grille, and three-dimensional grille are all made of stainless steel, with a rod diameter of 1mm-5mm.

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