Booster pump output pressure stabilizing device

Abstract

The utility model relates to an output pressure stabilizing device of a booster pump, which belongs to the technical field of electrolytic aluminum production and comprises a buffer cylinder, a pressure stabilizing piston is movably connected in the buffer cylinder, and a balancing weight is arranged on the pressure stabilizing piston. An output port of the buffer cylinder is connected with an air inlet of the booster pump; the buffer air cylinder and the pressure stabilizing piston are arranged, air is temporarily stored, pressure is adjusted, noise and large air pressure fluctuation caused by direct exhaust of the air tank are avoided, the stability of air pressure supplied to the booster pump is improved, and meanwhile the pressure reducing valve further guarantees the stability of output air pressure.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of pressure pump output pressure stabilizing device, belong to electrolytic aluminium production technical field. BACKGROUND

[0002] Compressed gas is supplied by unified gas tank in production workshop, high pressure gas is needed when lifting busbar operation, and the supply pressure of pressure pump used for starting and stopping electrolytic cell is lower than the pressure needed for lifting busbar operation, so as to meet the pressure demand of pressure pump, workshop production personnel need to open the exhaust valve of gas tank to achieve the purpose of pressure reduction, and this operation mode not only wastes compressed air, but also affects on-site communication due to loud noise, and the direct discharge of gas in gas tank also causes great fluctuation to gas pressure, which is not conducive to production. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, provide a pressure pump output pressure stabilizing device, provide safe and stable pressure supply for pressure pump, avoid the pressure adjustment mode of direct gas discharge of gas tank, and thus avoid the adverse effects of this mode on production.

[0004] The utility model relates to a kind of pressure pump output pressure stabilizing device, including buffer cylinder, and buffer cylinder is movably connected with pressure stabilizing piston in, and counterweight is provided on the pressure stabilizing piston;The output port of buffer cylinder is connected with the gas inlet of pressure pump.

[0005] Further, the buffer cylinder includes: cylinder body, the gas outlet and the gas inlet are provided on the cylinder body;Safety valve is arranged on the bottom of the cylinder body.

[0006] Further, the gas outlet is connected with pressure stabilizing valve, and the gas inlet is connected with one-way valve, and the output end of pressure stabilizing valve is connected with the gas inlet of pressure pump.

[0007] Further, the bottom surface of the cylinder body is provided with a plurality of support rods.

[0008] Further, the pressure stabilizing piston includes: piston body, the piston body is hollow, and the inner portion of the piston body is separated to provide liquid storage bin and counterweight platform, and the liquid storage bin is arranged below the counterweight platform;The outer wall of the piston body is attached to the inner wall of the buffer cylinder.

[0009] Further, the counterweight platform is fixedly connected with support screw, and the support screw is connected with fastening nut.

[0010] Further, the counterweight platform is provided with counterweight, the support screw is arranged through the counterweight, the bottom of the fastening nut is arranged on the upper surface of the counterweight, and the fastening nut and the support screw provide screw clamping force to fix the counterweight on the counterweight platform.

[0011] Further, the liquid storage bin top is provided with a liquid injection pipe.

[0012] Further, the piston body side is provided with a plurality of sealing grooves, and a sealing ring is sleeved on the sealing groove.

[0013] The utility model has the beneficial effects compared with prior art:

[0014] The utility model discloses a buffer cylinder and pressure stabilizing piston are set up, and gas is temporarily stored and pressure regulating, avoids the noise and the big gas pressure fluctuation of direct exhaust to gas tank, improves the stability of the gas pressure of the booster pump supply, and the pressure reducing valve of the utility model further guarantees the stability of the output gas pressure. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the main structure schematic diagram of the utility model discloses a kind of pressure booster pump output pressure stabilizing device;

[0016] Fig. 2 It is the buffer cylinder structure schematic diagram of the utility model discloses a kind of pressure booster pump output pressure stabilizing device;

[0017] Fig. 3 It is the pressure stabilizing piston structure schematic diagram of the utility model discloses a kind of pressure booster pump output pressure stabilizing device.

[0018] In the drawing:

[0019] 1, buffer cylinder;101, cylinder body;102, pressure stabilizing valve;103, gas outlet;104, safety valve;105, support rod;106, gas inlet;107, one-way valve;

[0020] 2, pressure stabilizing piston;201, piston body;202, sealing groove;203, liquid storage bin;204, counterweight platform;205, support screw;206, fastening nut;207, liquid injection pipe;

[0021] 3, counterweight block;

[0022] 4, pressure booster pump. DETAILED DESCRIPTION

[0023] As Figs. 1-3 Shown, the embodiment is realized by following technical scheme: including buffer cylinder 1, buffer cylinder 1 is movably connected with pressure stabilizing piston 2, is provided with counterweight block 3 on pressure stabilizing piston 2;The output of buffer cylinder 1 is connected with the gas inlet of pressure booster pump 4;

[0024] The buffer cylinder 1 includes: cylinder body 101, cylinder body 101 is provided with gas outlet 103 and gas inlet 106 respectively;Cylinder body 101 bottom is equipped with safety valve 104;

[0025] A pressure regulating valve 102 is connected to the air outlet 103, and a one-way valve 107 is connected to the air inlet 106. The output end of the pressure regulating valve 102 is connected to the air inlet of the booster pump 4.

[0026] Specifically, both the buffer cylinder 1 and the pressure-stabilizing piston 2 are vertically positioned during operation. The bottom surface of the cylinder body 101 is provided with several support rods 105, which are evenly distributed along the contour of the bottom surface of the cylinder body 101. In this embodiment, three support rods 105 are provided. A limit stop is provided at the upper end of the cylinder body 101 to prevent the pressure-stabilizing piston 2 from disengaging upwards from the buffer cylinder 1. When the air pressure inside the buffer cylinder 1 reaches the trigger value of the safety valve 104, the gas is discharged through the safety valve 104.

[0027] The pressure-stabilizing piston 2 includes: a piston body 201, which is hollow, and the interior of the piston body 201 is divided into a liquid storage chamber 203 and a counterweight platform 204. The liquid storage chamber 203 is located below the counterweight platform 204; the outer wall of the piston body 201 is attached to the inner wall of the buffer cylinder 1.

[0028] Specifically, the liquid storage tank 203 is used to hold liquid; in this embodiment, water is used as the filling liquid. An injection pipe 207 is provided on the liquid storage tank 203, which serves as a channel for adding or discharging liquid from the liquid storage tank 203.

[0029] Specifically, a support screw 205 is fixedly connected to the counterweight platform 204, and a fastening nut 206 is connected to the support screw 205. A counterweight block 3 is provided on the counterweight platform 204, the support screw 205 passes through the counterweight block 3, and the bottom of the fastening nut 206 abuts against the top of the counterweight block 3. The fastening nut 206 and the support screw 205 provide a helical clamping force to fix the counterweight block 3 to the counterweight platform 204. The counterweight block 3 is used to increase the weight of the pressure-stabilizing piston 2.

[0030] The piston body 201 has several sealing grooves 202 on its side, and sealing rings are fitted on the sealing grooves 202. The sealing grooves 202 and the sealing rings are used to improve the airtightness between the buffer cylinder 1 and the piston body 201. Preferably, lubricating grease is applied between the contact surfaces of the piston body 201 and the buffer cylinder 1.

[0031] The specific usage method is as follows:

[0032] Gas enters the buffer cylinder 1 through the inlet 106. The one-way valve 107 cuts off the gas passage at the inlet 106 to prevent gas backflow in the buffer cylinder 1. Furthermore, under the action of air pressure, the pressure stabilizing piston 2 is pushed up and moves inside the buffer cylinder 1. Correspondingly, the gas holding volume of the buffer cylinder 1 increases or decreases.

[0033] According to basic physics, when other conditions remain unchanged, a decrease in unit volume leads to an increase in gas pressure, and vice versa. Therefore, when the intake air pressure increases significantly, the corresponding pressure-stabilizing piston 2 is pushed up. At this time, the gas volume in the buffer cylinder 1 increases, and the buffer cylinder 1 uses the increase in gas volume to offset the increase in intake air pressure.

[0034] The buffer cylinder 1 and the pressure stabilizing piston 2 are in equilibrium. According to the gas pressure formula F = P * S, where F is the weight of the pressure stabilizing piston 2, P is the gas pressure inside the buffer cylinder 1, and S is the force-bearing area of ​​the pressure stabilizing piston 2, it can be seen from the formula that in equilibrium, if the weight of the pressure stabilizing piston 2 increases, the gas pressure inside the buffer cylinder 1 will increase. Correspondingly, if the mass of the pressure stabilizing piston 2 remains unchanged, that is, if the weight of the pressure stabilizing piston 2 remains unchanged, the gas pressure inside the buffer cylinder 1 will also remain unchanged. This utility model regulates the gas pressure based on this principle.

[0035] This invention adjusts the air pressure in the buffer cylinder 1 by adjusting the mass of the pressure-stabilizing piston 2. The mass adjustment method of the pressure-stabilizing piston 2 is to increase or decrease the liquid storage in the liquid storage tank 203 and to increase or decrease the mass of the counterweight 3.

[0036] Of course, the above description is only a preferred embodiment of this utility model and should not be considered as limiting the scope of the embodiments of this utility model. This utility model is not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of this utility model should be included in the patent coverage of this utility model.

Claims

1. A booster pump output voltage stabilizing device, characterized in that, Includes a buffer cylinder (1), a pressure stabilizing piston (2) is movably connected inside the buffer cylinder (1), and a counterweight (3) is provided on the pressure stabilizing piston (2); the output port of the buffer cylinder (1) is connected to the air inlet of the booster pump (4); The buffer cylinder (1) includes: a cylinder body (101), which is provided with an air outlet (103) and an air inlet (106); and a safety valve (104) is provided at the bottom of the cylinder body (101). The outlet (103) is connected to a pressure regulating valve (102), the inlet (106) is connected to a one-way valve (107), and the output end of the pressure regulating valve (102) is connected to the inlet of the booster pump (4).

2. The booster pump output voltage stabilizing device according to claim 1, characterized in that, The bottom surface of the cylinder (101) is provided with several support rods (105).

3. The booster pump output voltage stabilizing device according to claim 1, characterized in that, The pressure-stabilizing piston (2) includes: a piston body (201), which is hollow. The piston body (201) is internally divided into a liquid storage chamber (203) and a counterweight platform (204). The liquid storage chamber (203) is located below the counterweight platform (204). The outer wall of the piston body (201) is attached to the inner wall of the buffer cylinder (1).

4. The booster pump output voltage stabilizing device according to claim 3, characterized in that, A support screw (205) is fixedly connected to the counterweight platform (204), and a fastening nut (206) is connected to the support screw (205); A counterweight (3) is provided on the counterweight platform (204). A support screw (205) passes through the counterweight (3). The bottom of the fastening nut (206) abuts against the top of the counterweight (3). The fastening nut (206) and the support screw (205) provide a helical clamping force to fix the counterweight (3) on the counterweight platform (204).

5. A booster pump output voltage stabilizing device according to claim 3, characterized in that, A liquid injection pipe (207) is installed on the top of the liquid storage tank (203).

6. The booster pump output voltage stabilizing device according to claim 3, characterized in that, The piston body (201) has several sealing grooves (202) on its side, and sealing rings are fitted on the sealing grooves (202).

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