Automatic liquid level control device for waste water collecting pool of gas drainer

Abstract

The utility model relates to the technical field of liquid level control of waste water collecting pools of gas drainers, and discloses an automatic liquid level control device of a waste water collecting pool of a gas drainer, which comprises a balance beam, a corrosion-resistant floating ball and a liquid level controller, a plurality of first connecting holes are formed in the balance beam in the length direction of the balance beam, and the balance beam is rotationally installed at the top of the collecting pool through one first connecting hole. The balance beam is provided with a first end and a second end, the first end of the balance beam is provided with a corrosion-resistant floating ball, the corrosion-resistant floating ball is used for being in contact with the sewage liquid level of the wastewater collection pool, the second end of the balance beam is provided with a liquid level controller, and the liquid level controller is arranged outside the collection pool and used for controlling starting and stopping of a pump in the collection pool; when the liquid level controller is installed in a collecting pool with a small liquid level height change degree, the liquid level controller is more sensitive in reaction and more accurate in control over the pump. When the device is installed in a collecting pool with a large liquid level height change degree, the situation that the lifting range of the floating ball is not enough can be avoided, and the application range of the device can be effectively widened.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level control of a wastewater collection tank of a gas drainer, and more specifically, to an automatic liquid level control device for a wastewater collection tank of a gas drainer. Background Art

[0002] Coke oven gas, blast furnace gas, etc. are often used as combustion heating media in industrial enterprises such as the steel industry. A gas drainer is installed on the gas transmission pipeline. The condensed water in the gas flows into the wastewater collection pool through the drainer. When multiple gas pipelines are arranged at the same time, the condensed water produced by multiple gas drainers will be collected in a sewage collection pool. The condensed water of coke oven gas and blast furnace gas contains a large amount of corrosive media such as tar, naphthalene, benzene, phenol, etc., which aggravates the corrosiveness of the liquid in the pool. The sewage in the collection pool needs to be pumped directly by a pump or pumped to a tank truck for retransmission and treatment regularly; with the use of gas, the liquid level in the gas drainer collection pool continues to rise. When it reaches a certain height, it is necessary to start the pump in the collection pool in time to pump water for timely retransmission, otherwise the liquid will overflow. When the liquid level drops to a certain height, it needs to be stopped in time to prevent the pump from burning out due to no-load operation and increasing costs; at present, in order to ensure the safe and stable operation of the pump, an automatic liquid level control device is added to realize the start and stop control of the pump.

[0003] The utility model patent with the authorization announcement number CN217302842U discloses an automatic water replenishment device for a scraper type slag picker in a thermal power plant, including a lever, which is rotatably mounted on the top of the cooling pool, and the two ends of the lever are rotatably connected with a first connecting rod and a second connecting rod, and the first connecting rod is located inside the cooling pool, and the second connecting rod is located outside the cooling pool; a float, which is fixedly connected to the first connecting rod; a counterweight, which is fixedly connected to the second connecting rod, and a controller is also installed on the counterweight, and the controller is connected to the electric water replenishment door by telecommunication; a detection component, which is arranged on the outer wall of the cooling pool and cooperates with the controller. The float and the controller are connected by a lever, so that the controller can be located outside the cooling pool, avoiding corrosion to the controller by the evaporated water vapor in the cooling pool, thereby improving the service life of the equipment.

[0004] In the above scheme, when the float changes in height, the detection component also produces a corresponding change in height through the lever; because the lever is rotatably installed on the top of the cooling pool, with the rotation position as the center, the length ratio of both sides of the lever cannot be adjusted, so the corresponding height change ratio produced by the detection component is always constant. When installed in a collection pool with a large degree of liquid level height change, the float's lifting range will be insufficient. When installed in a collection pool with a small degree of liquid level height change, the detection will be insensitive and the automatic control will be sluggish. Utility Model Content

[0005] The utility model aims to overcome the defects of the above-mentioned prior art and provides a gas drainer wastewater collection tank liquid level automatic control device, which is used to solve the technical problems that the length ratio of both sides of the lever cannot be adjusted, the floating ball lifting range is insufficient, and the detection is insensitive and the automatic control is slow.

[0006] The technical solution adopted by the utility model is a liquid level automatic control device for a wastewater collection tank of a gas drainer, comprising a balance beam, a corrosion-resistant float and a liquid level controller; a plurality of connecting holes are arranged on the balance beam along its length direction, and the balance beam is rotatably mounted on the top of the collection tank through one of the connecting holes; the balance beam has a first end and a second end, a corrosion-resistant float is mounted on the first end of the balance beam, and the corrosion-resistant float is used to contact the sewage liquid surface in the wastewater collection tank, and a liquid level controller is mounted on the second end of the balance beam, and the liquid level controller is arranged outside the collection tank and is used to control the start and stop of a pump in the collection tank.

[0007] When installed in a collection tank with a small degree of liquid level height change, select the connection hole on the right side to rotate the balance beam and install it on the top of the collection tank. At this time, the length of the left balance beam will be much larger than that of the right balance beam. Smaller changes in liquid level height will cause the corrosion-resistant float to have smaller rise and fall changes. Because the length of the left balance beam is much larger than that of the right balance beam, the small height change of the corrosion-resistant float is amplified when it is transmitted from the right side of the balance beam to the left side. The liquid level controller on the left will have a larger degree of rise and fall changes, and the liquid level controller will react more sensitively and control the pump more accurately. On the contrary, when installed in a collection tank with a large degree of liquid level height change, select the connection hole on the left side. At this time, the length of the left balance beam is much smaller than that of the right balance beam, and the range of rise and fall of the right float is increased, which can avoid the situation where the float rise and fall range is insufficient, and can effectively improve its scope of application.

[0008] Furthermore, it also includes a support column and a base, wherein the base is installed on the top of the collection tank, the support column is fixed on the base, and the balance beam is rotatably installed on the support column through one of the connection holes. The base and the support column can be connected together by welding, and the base is used to increase the stability of the support column.

[0009] Furthermore, the support column is provided with a plurality of connection holes 2 along its length direction, and one of the connection holes 2 is rotatably connected to one of the connection holes 1 on the balance beam through a bolt and nut assembly. The connection holes 2 are used to control the pump at different liquid levels. For example, when a higher connection hole 2 is selected, the overall position of the corrosion-resistant float and the liquid level controller is relatively high, and can be used for a collection tank with a higher liquid level, and vice versa, can be used for a collection tank with a lower liquid level.

[0010] Furthermore, the balance beam is provided with a through slot that crosses the plurality of connection holes, and during installation, the support column is arranged in the through slot. The through slot is used for inserting the support column, so that the strength and stability of the connection are higher, and the situation of deflection to one side causing serious wear will not occur.

[0011] Furthermore, it also includes a counterweight assembly, and a mounting plate is provided at the second end of the balance beam, and the counterweight assembly and the liquid level controller are both mounted on the mounting plate. The mounting plate mainly plays a bearing role, and is more convenient for installing and fixing the liquid level controller and the counterweight assembly. When different connection holes are selected, the weight on the left and right sides of the balance beam changes, and the balance adjustment is performed through the counterweight assembly.

[0012] Furthermore, the counterweight assembly includes a counterweight box and a counterweight block, the counterweight box is fixed to the mounting plate, and a plurality of counterweight blocks are arranged in the counterweight box. The counterweight box is mainly used to adjust the weight generated by the counterweight assembly, and any number of counterweight blocks can be added to the counterweight box, and the more counterweight blocks added, the greater the weight generated.

[0013] Furthermore, the first end of the balance beam is fixedly connected with a corrosion-resistant wire, and the corrosion-resistant float is hung on the first end of the balance beam through the corrosion-resistant wire. The corrosion-resistant wire is close to the sewage surface of the collection tank, so a corrosion-resistant wire needs to be selected.

[0014] Furthermore, the corrosion-resistant float has a water filling function. The weight of the corrosion-resistant float can be changed by the amount of water filled, and the corrosion-resistant float can float on the sewage surface of the collection tank by changing its weight, and at the same time, it should not be pulled up by the first end of the balance beam and separated from the sewage surface. When the length ratio of the left and right sides of the balance beam changes, adaptive balance adjustment can be performed by filling water.

[0015] Furthermore, the corrosion-resistant float is made of polypropylene, polytetrafluoroethylene, polyethylene, polyethylene terephthalate or polyester resin. These materials are all corrosion-resistant, and polyethylene terephthalate is preferred, which has a relatively low cost.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: when installed in a collection tank with a small degree of liquid level height change, the connection hole on the right side is selected to rotate the balance beam and install it on the top of the collection tank. At this time, the length of the left balance beam will be much larger than the length of the right balance beam, and a smaller liquid level height change will cause the corrosion-resistant float to produce a smaller rise and fall change. Because the length of the left balance beam is much larger than the length of the right balance beam, the smaller height change of the corrosion-resistant float is amplified when it is transmitted from the right side of the balance beam to the left side, and the liquid level controller on the left will produce a larger degree of rise and fall change, the liquid level controller is more sensitive, and the control of the pump is more precise; on the contrary, when installed in a collection tank with a large degree of liquid level height change, the connection hole on the left side is selected. At this time, the length of the left balance beam is much smaller than the length of the right balance beam, and the range of rise and fall of the right float is increased, which can avoid the situation where the float rise and fall range is insufficient, and can effectively improve its scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] In the figure: 1. supporting column, 2. base, 3. balance beam, 4. counterweight assembly, 5. corrosion-resistant float, 6. corrosion-resistant wire, 7. liquid level controller, 8. mounting plate, 9. counterweight box, 10. counterweight block, 11. connecting hole one, 12. connecting hole two, 13. bolt and nut assembly, 14. through groove. DETAILED DESCRIPTION

[0019] The drawings of the present invention are only used for illustrative purposes and cannot be construed as limiting the present invention. In order to better illustrate the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0020] like Figure 1 As shown, the present scheme discloses an automatic liquid level control device for a wastewater collection tank of a gas drainer, comprising a balance beam 3, a corrosion-resistant float 5 and a liquid level controller 7; a plurality of connecting holes 11 are arranged on the balance beam 3 along its length direction, and the balance beam 3 is rotatably mounted on the top of the collection tank through one of the connecting holes 11; the balance beam 3 has a first end and a second end, a corrosion-resistant float 5 is mounted on the first end of the balance beam 3, and the corrosion-resistant float 5 is used to contact the sewage liquid surface of the wastewater collection tank, and a liquid level controller 7 is mounted on the second end of the balance beam 3, and the liquid level controller 7 is arranged outside the collection tank and is used to control the start and stop of the pump in the collection tank.

[0021] When installed in a collection tank with a small degree of liquid level height change, the right-hand connecting hole 11 is selected to rotate the balance beam 3 and install it on the top of the collection tank. At this time, the length of the left balance beam 3 will be much larger than that of the right balance beam 3. Smaller liquid level height changes will cause the corrosion-resistant float 5 to produce smaller lifting changes. Because the length of the left balance beam 3 is much larger than that of the right balance beam 3, the smaller height change of the corrosion-resistant float 5 is amplified when it is transmitted from the right side of the balance beam 3 to the left side, and the liquid level controller 7 on the left will produce a larger degree of lifting and lowering changes. The liquid level controller 7 is more sensitive and the control of the pump is more precise. On the contrary, when installed in a collection tank with a large degree of liquid level height change, the left-hand connecting hole 11 is selected. At this time, the length of the left balance beam 3 is much smaller than that of the right balance beam 3, and the range of lifting and lowering of the right float is increased, which can avoid the situation where the lifting and lowering range of the float is insufficient, and can effectively improve its scope of application.

[0022] It also includes a support column 1 and a base 2, the base 2 is installed on the top of the collection tank, the support column 1 is fixed on the base 2, and the balance beam 3 is rotatably installed on the support column 1 through one of the connection holes 11. The base 2 and the support column 1 can be connected together by welding, and the base 2 is used to increase the stability of the support column 1.

[0023] A plurality of connection holes 12 are arranged along the length direction of the support column 1, and one of the connection holes 12 is rotatably connected to one of the connection holes 11 on the balance beam 3 through a bolt and nut assembly 13. The connection method through the bolt and nut assembly 13 has low cost, high structural strength, strong connection firmness, more convenient installation and maintenance, and can effectively save costs. The connection hole 12 is to achieve control of the pump under different liquid levels. For example, when a higher connection hole 12 is selected, the overall position of the corrosion-resistant float 5 and the liquid level controller 7 is relatively high, which can be used for a collection tank with a higher liquid level, and vice versa, it can be used for a collection tank with a lower liquid level.

[0024] The balance beam 3 is provided with a through slot 14 which crosses the plurality of connection holes 11. When installed, the support column 1 is arranged in the through slot 14. The through slot 14 is used for inserting the support column 1, so that the strength and stability of the connection are higher, and there will be no situation in which the deflection to one side causes serious wear.

[0025] It also includes a counterweight assembly 4. A mounting plate 8 is provided at the second end of the balance beam 3. The counterweight assembly 4 and the liquid level controller 7 are both mounted on the mounting plate 8. The mounting plate 8 mainly plays a bearing role, and is more convenient for installing and fixing the liquid level controller 7 and the counterweight assembly 4. When different connection holes 11 are selected, the weight on the left and right sides of the balance beam 3 changes. At this time, the balance adjustment is performed through the counterweight assembly 4. The counterweight assembly 4 includes a counterweight box 9 and a counterweight block 10. The counterweight box 9 is fixed on the mounting plate 8. A number of counterweight blocks 10 are provided in the counterweight box 9. The counterweight box 9 is mainly used to adjust the weight generated by the counterweight assembly 4. Any number of counterweight blocks 10 can be added to the counterweight box 9. The more counterweight blocks 10 are added, the greater the weight generated.

[0026] The first end of the balance beam 3 is fixedly connected with a corrosion-resistant wire 6, and the corrosion-resistant float 5 is hung on the first end of the balance beam 3 through the corrosion-resistant wire 6. The corrosion-resistant wire 6 can be a steel wire rope, a plastic rope, etc. in the prior art. The corrosion-resistant wire 6 is close to the sewage surface of the collection tank, so a corrosion-resistant wire needs to be selected.

[0027] The corrosion-resistant float 5 has a water filling function. In practice, the corrosion-resistant float 5 can be made of a plastic bottle, and water can be filled into it by opening the bottle cap. The use of a plastic bottle has the advantage of low cost, and the plastic bottle has good corrosion resistance, and it also has the characteristic of low cost. The deadweight of the corrosion-resistant float 5 can be changed by the amount of water filled. By changing its deadweight, the corrosion-resistant float 5 can float on the sewage surface of the collection tank, and at the same time, it should not be pulled up by the first end of the balance beam 3 to separate from the sewage surface. When the length ratio of the left and right sides of the balance beam 3 changes, adaptive balance adjustment can be performed by filling with water. The corrosion-resistant float 5 is made of polypropylene, polytetrafluoroethylene, polyethylene, polyethylene terephthalate or polyester resin. These materials are all corrosion-resistant, and polyethylene terephthalate is preferred, and its cost is relatively low.

[0028] During installation, select the second connection hole 12 according to the height of the sewage liquid level in the collection tank, and then select the first connection hole 11 according to the liquid level rising and falling range in the collection tank and the required sensitivity. When the liquid level rising and falling range is small, the first connection hole 11 on the right can be selected, and when the liquid level rising and falling range is large, the first connection hole 11 on the left can be selected. After selecting the first connection hole 11 and the second connection hole 12, connect the two through the bolt and nut assembly 13. Then, install the liquid level controller 7 on the mounting plate 8 at the second end of the balance beam 3, and make the second end of the balance beam 3 slightly heavier than the first end by adding different numbers of counterweights 10, so that the first end of the balance beam 3 produces an upward The pulling force straightens the corrosion-resistant line 6 connected to the corrosion-resistant float 5, and then the corrosion-resistant float 5 is hung on the corrosion-resistant line 6, and water is filled in the float so that the float can float on the liquid surface of the collection pool, and at the same time it must not be pulled away from the liquid surface of the collection pool by the first end of the balance beam 3. After the balance is adjusted in place, the installation is completed. The base 2, the liquid level controller 7, and the supporting column 1 are all located outside the collection pool. When the liquid level rises and falls, the height of the float changes, and the float causes the liquid level controller 7 to rise and fall through the balance beam 3. The liquid level controller 7 controls the pump to work or stop according to its own lifting height, so as to realize the automatic control of the sewage level in the wastewater collection pool.

[0029] Obviously, the above embodiments of the utility model are only examples for clearly explaining the technical solution of the utility model, and are not intended to limit the specific implementation methods of the utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the claims of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

1. An automatic liquid level control device for a wastewater collection tank of a gas drainer, characterized in that: It comprises a balance beam (3), a corrosion-resistant float (5) and a liquid level controller (7); The balance beam (3) is provided with a plurality of connection holes (11) along its length direction, and the balance beam (3) is rotatably mounted on the top of the collection tank through one of the connection holes (11); the balance beam (3) has a first end and a second end, and a corrosion-resistant float (5) is mounted on the first end of the balance beam (3), and the corrosion-resistant float (5) is used to contact the sewage surface of the wastewater collection tank; the second end of the balance beam (3) is installed with a liquid level controller (7), and the liquid level controller (7) is arranged outside the collection tank and is used to control the start and stop of a pump in the collection tank.

2. The automatic liquid level control device for the wastewater collection tank of a gas drainer according to claim 1 is characterized by: It also comprises a supporting column (1) and a base (2), wherein the base (2) is mounted on the top of the collection tank, the supporting column (1) is fixed on the base (2), and the balancing beam (3) is rotatably mounted on the supporting column (1) through one of the connecting holes (11).

3. The automatic liquid level control device for the wastewater collection tank of a gas drainer according to claim 2 is characterized by: The supporting column (1) is provided with a plurality of connecting holes (12) along its length direction, and one of the connecting holes (12) is rotatably connected to one of the connecting holes (11) on the balance beam (3) via a bolt and nut assembly (13).

4. The automatic liquid level control device for the wastewater collection tank of a gas drainer according to claim 2 is characterized by: The balance beam (3) is provided with a through groove (14) which crosses the plurality of connection holes (11); during installation, the support column (1) is arranged in the through groove (14).

5. The automatic liquid level control device for the wastewater collection tank of a gas drainer according to claim 1 is characterized by: It also includes a counterweight assembly (4), a mounting plate (8) is provided at the second end of the balance beam (3), and the counterweight assembly (4) and the liquid level controller (7) are both mounted on the mounting plate (8).

6. The automatic liquid level control device for the wastewater collection tank of a gas drainer according to claim 5, characterized in that: The counterweight assembly (4) comprises a counterweight box (9) and a counterweight block (10); the counterweight box (9) is fixed on a mounting plate (8); and a plurality of counterweight blocks (10) are arranged in the counterweight box (9).

7. The automatic liquid level control device for the wastewater collection tank of a gas drainer according to claim 1 is characterized by: The first end of the balance beam (3) is fixedly connected to a corrosion-resistant wire (6), and the corrosion-resistant floating ball (5) is hung on the first end of the balance beam (3) via the corrosion-resistant wire (6).

8. The automatic liquid level control device for the wastewater collection tank of a gas drainer according to claim 1 is characterized by: The corrosion-resistant floating ball (5) has a water filling function.

9. The automatic liquid level control device for the wastewater collection tank of a gas drainer according to any one of claims 1 to 8, characterized in that: The corrosion-resistant floating ball (5) is made of polypropylene, polytetrafluoroethylene, polyethylene, polyethylene terephthalate or polyester resin.

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