Overpressure protection device of efficient cyclone multi-stage purifier

Abstract

The utility model discloses an overpressure protection device of a high-efficiency rotational flow multi-stage purifier. The overpressure protection device comprises a drainage assembly and an exhaust assembly, the drainage assembly comprises a water inlet pipe fixedly arranged on the top face of the purifier, and the end, away from the purifier, of the water inlet pipe is connected with a drainage pipe through a pressure regulator and used for achieving the overpressure drainage function through the pressure regulator when the interior of the purifier is overpressure. The exhaust assembly comprises an exhaust branch pipe which is fixedly arranged on the water inlet pipe and communicated with the interior of the water inlet pipe, and an air vent valve is fixedly arranged at the end, away from the water inlet pipe, of the exhaust branch pipe and used for achieving the exhaust effect. The overpressure protection device of the efficient cyclone multistage purifier can replace a water drainage pipe with the height of 3m, and equipment which is not higher than the efficient cyclone multistage purifier is adopted, so that the total height of the efficient cyclone multistage purifier is reduced, the plant height is reduced, and the civil engineering investment cost is reduced.

Description

Technical Field

[0001] The utility model relates to mine water treatment equipment, in particular to an overpressure protection device for a high-efficiency cyclone multi-stage purifier. Background Art

[0002] The high-efficiency cyclone multi-stage purifier is a mine water treatment equipment. The high-efficiency cyclone multi-stage purifier commonly used in the market is equipped with a drainage pipe 3 meters higher than the main body of the equipment. This pipe is also used for equipment exhaust. When the high-efficiency cyclone multi-stage purifier is blocked, the water outlet of the equipment is not smooth, and the water inlet remains unchanged. The pressure inside the high-efficiency cyclone multi-stage purifier will increase. When the pressure inside the high-efficiency cyclone multi-stage purifier increases to a level greater than the pressure generated by a 3m water column under standard conditions, the high-efficiency cyclone multi-stage purifier will drain and release pressure through a 3m high DN125 drainage pipe to ensure equipment safety. However, in order to prevent freezing when using the high-efficiency cyclone multi-stage purifier in the north, the high-efficiency cyclone multi-stage purifier must be installed indoors. Since the high-efficiency cyclone multi-stage purifier is too high, the civil engineering cost is relatively high.

[0003] The present application proposes an overpressure protection device for a high-efficiency cyclone multi-stage purifier, which can replace a 3m high drainage pipe, thereby reducing the total height of the high-efficiency cyclone multi-stage purifier, reducing the height of the plant, and reducing the civil engineering investment cost. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a high-efficiency cyclone multi-stage purifier overpressure protection device.

[0005] The utility model provides a high-efficiency cyclone multi-stage purifier overpressure protection device, comprising a drainage component and an exhaust component; wherein,

[0006] The drainage assembly includes a water inlet pipe fixedly arranged on the top surface of the purifier, and one end of the water inlet pipe away from the purifier is connected to a drainage pipe through a pressure regulator, which is used to realize the overpressure drainage function through the pressure regulator when the inside of the purifier is over-pressured;

[0007] The exhaust assembly comprises an exhaust branch pipe fixedly arranged on the water inlet pipe and connected to the interior of the water inlet pipe. An air release valve is fixedly arranged on one end of the exhaust branch pipe away from the water inlet pipe for exhausting air.

[0008] Preferably, the pressure regulator comprises a pressure regulator housing, a weighted ball and a pressure regulator upper gland; wherein,

[0009] The pressure regulator housing comprises a middle connecting pipe, the top of which is fixedly provided with a first connecting flange; an inverted cone-shaped stopper is fixedly provided inside the middle connecting pipe, the top inner diameter of the stopper is larger than the bottom inner diameter; a lower connecting pipe is fixedly provided at the bottom of the middle connecting pipe corresponding to the stopper, the inner diameter of the lower connecting pipe is consistent with the bottom inner diameter of the stopper; a second connecting flange is fixedly provided at the bottom of the lower connecting pipe;

[0010] The weight ball is arranged inside the stopper, and the diameter of the weight ball is larger than the inner diameter of the bottom end of the stopper and smaller than the inner diameter of the top end;

[0011] The upper pressure cover of the pressure regulator is arranged at the top end of the pressure regulator housing, and includes an upper connecting pipe. The bottom end of the upper connecting pipe is fixedly provided with a third connecting flange corresponding to the first connecting flange, and the first connecting flange and the third connecting flange are connected and fixed by a bolt assembly; the top end of the upper connecting pipe is fixedly provided with a fourth connecting flange.

[0012] Preferably, the air release valve comprises an air release valve housing, a floating needle and an air release valve upper gland; wherein,

[0013] The air trap housing comprises an egg-shaped shell with a hollow interior, and both upper and lower ends of the egg-shaped shell are open; the bottom of the egg-shaped shell is evenly distributed along its circumference and fixedly provided with four arc-shaped support rods, and the four arc-shaped support rods are arranged to fit the inner wall surface of the egg-shaped shell; the top of the egg-shaped shell is fixedly provided with a fifth connecting flange, and the bottom of the egg-shaped shell is fixedly provided with a connecting pipe connected to the interior thereof; the bottom end of the connecting pipe is fixedly provided with a sixth connecting flange, which is used for fixedly connecting with the end of the exhaust branch pipe away from the drain pipe through a bolt assembly;

[0014] The floating needle comprises a floating ball arranged inside the egg-shaped shell and located on the four arc-shaped support rods, a conical cap is fixedly arranged on the floating ball, and a guide needle is fixedly arranged on one end of the conical cap away from the floating ball; the axis of the conical cap and the guide needle are both located on an extension line of a diameter of the floating ball;

[0015] The upper pressure cover of the air valve is arranged at the top end of the air valve housing, and includes a pressure cover blind plate. The pressure cover blind plate is connected and fixed to the fifth connecting flange through a bolt assembly; a through hole is provided in the middle of the pressure cover blind plate corresponding to the guide needle, and a conical cylinder is fixedly provided on the bottom surface of the pressure cover blind plate corresponding to the through hole, and the top end of the guide needle passes through the conical cylinder and out of the through hole.

[0016] Preferably, the outer inclined surface of the conical cap and the inner inclined surface of the conical tube have the same slope, so they can be completely combined and tightly sealed.

[0017] Preferably, the width of the arc-shaped support rod is 28-32 mm, and the length is one quarter of the length of the arc between the upper and lower ends of the egg-shaped shell.

[0018] Preferably, the second connecting flange is connected and fixed to the port of the water inlet pipe via a bolt assembly, and the fourth connecting flange is connected and fixed to the port of the drain pipe via a bolt assembly.

[0019] Preferably, the counterweight ball is made of stainless steel.

[0020] Preferably, the float is made of stainless steel.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The high-efficiency cyclone multi-stage purifier overpressure protection device of the utility model firstly realizes the exhaust function when water continues to flow into the purifier through the air release valve; secondly, realizes the drainage and pressure relief function when the water inlet pressure in the purifier exceeds the pressure through the pressure regulator;

[0023] The setting of the air drain valve and the pressure regulator can replace the 3m high drainage pipe and adopt equipment that is not higher than the high-efficiency cyclone multi-stage purifier, so as to reduce the total height of the high-efficiency cyclone multi-stage purifier, reduce the height of the plant, and reduce the civil engineering investment cost.

[0024] It should be understood that the contents described in the summary of the utility model are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model.

[0025] Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0027] Figure 1 A schematic diagram of the structure of an efficient cyclone multi-stage purifier overpressure protection device and a purifier after assembly provided by an embodiment of the utility model;

[0028] Figure 2 is a structural schematic diagram of a pressure regulator;

[0029] Figure 3 It is a structural schematic diagram of the air drain valve;

[0030] Numbers in the figure: 1, drainage assembly; 11, water inlet pipe; 12, pressure regulator; 121, pressure regulator housing; 1211, middle connecting pipe; 1212, first connecting flange; 1213, stopper; 1214, lower connecting pipe; 1215, second connecting flange; 122, weighted ball; 123, upper gland of pressure regulator; 1231, upper connecting pipe; 1232, third connecting flange; 1233, fourth connecting flange; 13, drainage pipe;

[0031] 2. Exhaust assembly; 21. Exhaust branch pipe; 22. Air vent; 221. Air vent housing; 2211. Egg-shaped housing; 2212. Arc support rod; 2213. Fifth connecting flange; 2214. Connecting pipe; 2215. Sixth connecting flange; 222. Float needle; 2221. Float ball; 2222. Conical cap; 2223. Guide needle; 223. Upper gland of air vent; 2231. Gland blind plate; 2232. Through hole; 2233. Conical cylinder;

[0032] 3. Purifier. DETAILED DESCRIPTION

[0033] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0034] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0035] Please refer to Figures 1 to 3 The embodiment of the utility model provides a high-efficiency cyclone multi-stage purifier overpressure protection device, including a drainage component 1 and an exhaust component 2, both of which are arranged on the top of the purifier 3, wherein the drainage component 1 includes a water inlet pipe 11 fixedly arranged on the top surface of the purifier 3 and connected to the inside thereof, and a drainage pipe 13 is connected to the end of the water inlet pipe 11 away from the purifier 3 through a pressure regulator 12, which is used to play the role of drainage and pressure relief; when the purifier 3 is over-pressured, the water inside the purifier 3 enters the pressure regulator 12 through the water inlet pipe 11 and is then discharged through the drainage pipe 13;

[0036] The exhaust assembly 2 includes an exhaust branch pipe 21 fixedly arranged on the water inlet pipe 11 and connected to the interior thereof. The exhaust branch pipe 21 is arranged in an L shape. An air release valve 22 is fixedly arranged at one end of the exhaust branch pipe 21 away from the water inlet pipe 11 for exhausting air.

[0037] In a preferred embodiment, the pressure regulator 12 includes a pressure regulator housing 121, a weighted ball 122 and a pressure regulator upper gland 123; wherein the weighted ball 122 is disposed inside the pressure regulator housing 121, and the pressure regulator upper gland 123 is disposed at the top of the pressure regulator housing 121 for connecting with the drain pipe 13; the specific structure is as follows:

[0038] The pressure regulator housing 121 comprises a middle connecting pipe 1211, the top of which is fixedly provided with a first connecting flange 1212; an inverted cone-shaped stopper 1213 is fixedly provided inside the middle connecting pipe 1211, and the top inner diameter of the stopper 1213 is larger than the bottom inner diameter; a lower connecting pipe 1214 is fixedly provided at the bottom of the middle connecting pipe 1211 corresponding to the stopper 1213, and the inner diameter of the lower connecting pipe 1214 is consistent with the bottom inner diameter of the stopper 1213; a second connecting flange 1215 is fixedly provided at the bottom of the lower connecting pipe 1214;

[0039] The weight ball 122 is arranged inside the stopper 1213. The diameter of the weight ball 122 is larger than the inner diameter of the bottom end of the stopper 1213 and smaller than the inner diameter of the top end thereof. The final weight of the weight ball 122 is determined experimentally according to the working pressure requirements. The weight ball 122 is made of stainless steel.

[0040] The pressure regulator upper cover 123 is arranged at the top end of the pressure regulator housing 121, and includes an upper connecting pipe 1231. The bottom end of the upper connecting pipe 1231 is fixedly provided with a third connecting flange 1232 corresponding to the first connecting flange 1212. The first connecting flange 1212 and the third connecting flange 1232 are connected and fixed by a bolt assembly; the top end of the upper connecting pipe 1231 is fixedly provided with a fourth connecting flange 1233.

[0041] Among them, the second connecting flange 1215 and the fourth connecting flange 1233 are both DN100 standard flange interfaces, which are respectively used to connect and fix with the ports of the water inlet pipe 11 and the drain pipe 13 through bolt assemblies, that is, the second connecting flange 1215 is connected to the water inlet pipe 11 (the pressure vessel of the purifier), and the fourth connecting flange 1233 is connected to the drain pipe 13 (overpressure discharge pipe).

[0042] The working principle of the pressure regulator 12: when water enters the lower part of the pressure regulator 12, the pressure is relatively small at first, and the counterweight ball 122 prevents the water from passing through the lower part under gravity conditions; when the water inlet pressure increases and the lower water inlet pressure exceeds the pressure, the water pressure pushes the counterweight ball 122 to roll, and the lower water is discharged through the pressure regulator 12 to relieve the pressure; it plays a role in protecting the equipment connected to the pressure regulator 12 from overpressure.

[0043] In a preferred embodiment, the air release valve 22 includes an air release valve housing 221, a floating needle 222 and an air release valve upper gland 223; wherein,

[0044] The air release valve housing 221 comprises an egg-shaped shell 2211 with a hollow interior, and both upper and lower ends of the egg-shaped shell 2211 are open; the bottom of the egg-shaped shell 2211 is evenly distributed along its circumference and fixedly provided with four arc-shaped support rods 2212, and the four arc-shaped support rods 2212 are arranged to fit the inner wall surface of the egg-shaped shell 2211; the top of the egg-shaped shell 2211 is fixedly provided with a fifth connecting flange 2213, and the bottom of the egg-shaped shell 2211 is fixedly provided with a connecting pipe 2214 connected to the interior thereof; the bottom end of the connecting pipe 2214 is fixedly provided with a sixth connecting flange 2215, which is used for fixedly connecting with the end of the exhaust branch pipe 21 away from the drain pipe 13 through a bolt assembly;

[0045] The floating needle 222 includes a floating ball 2221 disposed inside the egg-shaped shell 2211 and located on four arc-shaped support rods 2212. The floating ball 2221 is made of stainless steel. A conical cap 2222 is fixedly disposed on the floating ball 2221. A guide needle 2223 is fixedly disposed at one end of the conical cap 2222 away from the floating ball 2221. The axis of the conical cap 2222 and the guide needle 2223 are both located on an extension line of a diameter of the floating ball 2221.

[0046] The upper pressure cover 223 of the air valve is arranged at the top end of the air valve housing 221, and includes a pressure cover blind plate 2231. The pressure cover blind plate 2231 is a standard flange blind plate. The pressure cover blind plate 2231 is connected and fixed to the fifth connecting flange 2213 by a bolt assembly; a through hole 2232 is provided in the middle part of the pressure cover blind plate 2231 corresponding to the guide needle 2223, and a conical cylinder 2233 is fixedly provided on the bottom surface of the pressure cover blind plate 2231 corresponding to the through hole 2232, and the top end of the guide needle 2223 passes through the conical cylinder 2233 and passes through the through hole 2232.

[0047] The sixth connecting flange 2215 is a standard flange, which is connected to the equipment that needs to be exhausted (ie, the exhaust branch pipe 21 on the purifier 3); the top of the upper gland 223 of the air release valve is connected to the atmosphere.

[0048] Working principle of air drain valve:

[0049] When there is no water inside the air valve 22, there is a gap between the floating needle 222 and the upper pressure cover 223 of the air valve due to the action of gravity, and air can be discharged through the gap; when water enters the air valve 22, the floating needle 222 floats up due to the action of buoyancy, overlaps and seals with the conical cylinder 2233 on the upper pressure cover 223 of the air valve, and water cannot be discharged; when the water level drops, the floating needle 222 falls due to gravity, and the gap between the floating needle 222 and the upper pressure cover 223 of the air valve opens, and the exhaust function is realized again.

[0050] In a preferred embodiment, the outer inclined surface of the conical cap 2222 and the inner inclined surface of the conical tube 2233 have the same slope, so they can be completely combined and tightly sealed.

[0051] In a preferred embodiment, the width of the arc-shaped support rod 2212 is 28-32 mm, and the length is one quarter of the length of the arc between the upper and lower ends of the egg-shaped shell 2211.

[0052] In order to prevent freezing when the high-efficiency cyclone multi-stage purifier of the mine water treatment equipment of the present application is used in the north, the high-efficiency cyclone multi-stage purifier must be installed indoors, but the traditional high-efficiency cyclone multi-stage purifier is too high, so the civil engineering cost is relatively high. In order to reduce the investment cost, it is necessary to reduce the equipment room of the high-efficiency cyclone multi-stage purifier and reduce the height of the high-efficiency cyclone multi-stage purifier; the high-efficiency cyclone multi-stage purifier overpressure protection device can reduce the height of the high-efficiency cyclone multi-stage purifier by more than 3 meters, and the equipment room of the high-efficiency cyclone multi-stage purifier can be reduced by 3 meters, thereby reducing the civil engineering investment.

[0053] The technical solution of the present application will be better reflected when treating high-turbidity mine water.

[0054] The coal mine is located in Ordos, Inner Mongolia. The mine water volume is 400m3 / h and the suspended solids are 1580mg / L. Due to the cold region, the pool and equipment are set indoors.

[0055] This project uses a high-efficiency cyclone multi-stage purifier overpressure protection device. The height of the equipment room is reduced from 18 meters to 15 meters. After the equipment is turned on, the water level in the equipment rises and the air valve begins to exhaust. When the water level reaches the operating height and produces water, the air valve automatically closes to test whether the air valve is operating normally.

[0056] As the running time of the high-efficiency cyclone multi-stage purifier increases (about 20 hours), the internal filtration system of the high-efficiency cyclone multi-stage purifier becomes clogged, the filtration pressure increases, and the pressure regulator automatically opens to drain and relieve pressure; after backwashing, the filtration system of the high-efficiency cyclone multi-stage purifier returns to normal, the high-efficiency cyclone multi-stage purifier resumes water flow and operation, and the pressure regulator is closed.

[0057] Practical equipment operation has proved that the overpressure protector can completely replace the original ultra-high pressure-stabilizing pipeline of the high-efficiency cyclone multi-stage purifier, which can reduce the height of the equipment room by about 3 meters and reduce the civil engineering investment cost of the equipment room.

[0058] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0059] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high-efficiency cyclone multi-stage purifier overpressure protection device, characterized in that: It includes a drainage component and an exhaust component; wherein, The drainage assembly includes a water inlet pipe fixedly arranged on the top surface of the purifier, and one end of the water inlet pipe away from the purifier is connected to a drainage pipe through a pressure regulator, which is used to realize the overpressure drainage function through the pressure regulator when the inside of the purifier is over-pressured; The exhaust assembly comprises an exhaust branch pipe fixedly arranged on the water inlet pipe and connected to the interior of the water inlet pipe. An air release valve is fixedly arranged on one end of the exhaust branch pipe away from the water inlet pipe for exhausting air.

2. The high-efficiency cyclone multi-stage purifier overpressure protection device according to claim 1 is characterized in that: The pressure regulator comprises a pressure regulator housing, a weighted ball and a pressure regulator upper gland; wherein, The pressure regulator housing comprises a middle connecting pipe, the top of which is fixedly provided with a first connecting flange; an inverted cone-shaped stopper is fixedly provided inside the middle connecting pipe, the top inner diameter of the stopper is larger than the bottom inner diameter; a lower connecting pipe is fixedly provided at the bottom of the middle connecting pipe corresponding to the stopper, the inner diameter of the lower connecting pipe is consistent with the bottom inner diameter of the stopper; a second connecting flange is fixedly provided at the bottom of the lower connecting pipe; The weight ball is arranged inside the stopper, and the diameter of the weight ball is larger than the inner diameter of the bottom end of the stopper and smaller than the inner diameter of the top end; The upper pressure cover of the pressure regulator is arranged at the top end of the pressure regulator housing, and includes an upper connecting pipe. The bottom end of the upper connecting pipe is fixedly provided with a third connecting flange corresponding to the first connecting flange, and the first connecting flange and the third connecting flange are connected and fixed by a bolt assembly; the top end of the upper connecting pipe is fixedly provided with a fourth connecting flange.

3. The high-efficiency cyclone multi-stage purifier overpressure protection device according to claim 1 is characterized in that: The air vent valve comprises an air vent valve housing, a floating needle and an air vent valve upper gland; wherein, The air trap housing comprises an egg-shaped shell with a hollow interior, and both upper and lower ends of the egg-shaped shell are open; the bottom of the egg-shaped shell is evenly distributed along its circumference and fixedly provided with four arc-shaped support rods, and the four arc-shaped support rods are arranged to fit the inner wall surface of the egg-shaped shell; the top of the egg-shaped shell is fixedly provided with a fifth connecting flange, and the bottom of the egg-shaped shell is fixedly provided with a connecting pipe connected to the interior thereof; the bottom end of the connecting pipe is fixedly provided with a sixth connecting flange, which is used for fixedly connecting with the end of the exhaust branch pipe away from the drain pipe through a bolt assembly; The floating needle comprises a floating ball arranged inside the egg-shaped shell and located on the four arc-shaped support rods, a conical cap is fixedly arranged on the floating ball, and a guide needle is fixedly arranged on one end of the conical cap away from the floating ball; the axis of the conical cap and the guide needle are both located on an extension line of a diameter of the floating ball; The upper pressure cover of the air valve is arranged at the top end of the air valve housing, and includes a pressure cover blind plate. The pressure cover blind plate is connected and fixed to the fifth connecting flange through a bolt assembly; a through hole is provided in the middle of the pressure cover blind plate corresponding to the guide needle, and a conical cylinder is fixedly provided on the bottom surface of the pressure cover blind plate corresponding to the through hole, and the top end of the guide needle passes through the conical cylinder and out of the through hole.

4. The high-efficiency cyclone multi-stage purifier overpressure protection device according to claim 3 is characterized in that: The outer inclined surface of the conical cap and the inner inclined surface of the conical tube have the same slope, and can be completely combined and tightly sealed.

5. The high-efficiency cyclone multi-stage purifier overpressure protection device according to claim 3 is characterized in that: The width of the arc-shaped support rod is 28-32 mm, and the length is one quarter of the length of the arc line between the upper and lower ends of the egg-shaped shell.

6. The high-efficiency cyclone multi-stage purifier overpressure protection device according to claim 2 is characterized in that: The second connection flange is connected and fixed to the port of the water inlet pipe via a bolt assembly, and the fourth connection flange is connected and fixed to the port of the drain pipe via a bolt assembly.

7. The high-efficiency cyclone multi-stage purifier overpressure protection device according to claim 2 is characterized in that: The counterweight ball is made of stainless steel.

8. The high-efficiency cyclone multi-stage purifier overpressure protection device according to claim 3 is characterized in that: The float is made of stainless steel.

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