Compact isolation air cooling system for double-end-face mechanical seal

Abstract

The utility model discloses a compact isolation air cooling system for double mechanical seal, which comprises an upper liquid storage tank, the bottom surface of the upper liquid storage tank is connected with a lower liquid storage tank through a plurality of liquid delivery pipes, the periphery of each liquid delivery pipe is connected with a spiral dry radiating fin, the upper liquid storage tank is connected with a liquid inlet pipe, and the lower liquid storage tank is connected with a liquid outlet pipe. And the lower liquid storage tank is connected with a liquid outlet pipe. The spacer liquid in the upper liquid storage tank enters the lower liquid storage tank through the liquid conveying pipes and blows air to the cooling fins in the flowing process, the spacer liquid can be rapidly cooled through the cooling fins, the length and the size of the cooling liquid pipe are reduced, a spiral cooling liquid pipe does not need to be arranged in the upper liquid storage tank, the production difficulty is lowered, and the cost is reduced. And cooling liquid is not needed for cooling, cooling of the spacer fluid can be achieved, the number of use scenes is large, and convenience is better.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical seals, in particular to a compact isolation air cooling system for double-end surface mechanical seals. Background Art

[0002] like Figure 3 As shown, an external gas pressurized isolation liquid tank is used to provide clean isolation liquid for the isolation fluid sealing cavity. The pressure of the isolation liquid is kept higher than the pressure of the sealing cavity. The seal is a double-end seal, and the isolation liquid is stored in the tank. The pressure in the tank is higher than the pressure of the sealing cavity, so that the isolation liquid is located between the two sets of seals, and the isolation liquid is output from the tank by an internal circulation device, and then returned to the tank. The main functions are to provide isolation liquid for the atmospheric side seal, control the pressure required for the normal operation of the seal, take away the friction heat generated during the operation of the seal, improve the lubrication conditions of the seal end face, and establish an ideal working environment for the seal, thereby greatly improving the service life and reliability of the mechanical seal.

[0003] When the isolation liquid in the current double-end mechanical seal system is cold, it is cooled by liquid cooling, that is, a disc-shaped coolant pipe is set up, and the coolant is transported to the coolant pipe to cool the isolation liquid. However, when the coolant pipe is set up, the length and volume of the coolant pipe will be increased, and the coolant pipe will be installed in the liquid storage tank in a spiral shape, which increases the manufacturing difficulty and cost. In addition, if there is no coolant or the working environment is not suitable for liquid cooling, the isolation cannot be cooled. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a compact isolated air cooling system for double-end mechanical seals to solve the problems mentioned in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A compact isolated air cooling system for double-end mechanical seals comprises an upper liquid storage tank, the bottom surface of which is connected to a lower liquid storage tank via a plurality of liquid infusion pipes, the periphery of each liquid infusion pipe is connected to a spiral dry heat fin, the upper liquid storage tank is connected to a liquid inlet pipe, and the lower liquid storage tank is connected to a liquid outlet pipe.

[0007] Preferably, the upper portion of the upper liquid storage tank is connected to a liquid replenishing port, a first ball valve is installed at the liquid replenishing port, the top of the upper liquid storage tank is connected to an exhaust pipe, a second ball valve and a pressure switch are installed on the exhaust pipe, and a pressure gauge is provided on the pressure switch.

[0008] Preferably, the lower liquid storage tank is connected to a liquid level transmitter, and the liquid level transmitter is connected to the upper liquid storage tank through a liquid level pipe.

[0009] Preferably, a temperature gauge is installed on the upper liquid storage tank near the infusion tube.

[0010] Preferably, a liquid level meter is installed on the upper liquid storage tank.

[0011] Preferably, a drain pipe is installed at the bottom of the lower liquid storage tank, a third ball valve is installed on the drain pipe, and a sewage pipe is connected between the drain pipe and the upper liquid storage tank.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The isolation liquid in the upper liquid storage tank enters the lower liquid storage tank through multiple infusion tubes. During the flow, air is blown toward the heat dissipation fins, which can achieve rapid cooling of the isolation liquid, reducing the length and volume of the coolant pipe, and there is no need to set a spiral coolant pipe in the upper liquid storage tank, which reduces production difficulty and reduces costs. Moreover, cooling does not require coolant, and the isolation liquid can be cooled, which has many usage scenarios and is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is the principle diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of double end seal;

[0017] In the figure: 1-upper liquid storage tank, 2-liquid infusion pipe, 3-lower liquid storage tank, 4-heat sink, 5-liquid inlet pipe, 6-liquid outlet pipe, 7-liquid replenishing port, 8-exhaust pipe, 9-second ball valve, 10-pressure switch, 11-pressure gauge, 12-liquid level transmitter, 13-liquid level pipe, 14-thermometer, 15-liquid level meter, 16-drain pipe, 17-third ball valve, 18-drain pipe, 19-first ball valve, 20-pump, 21-sealed chamber, 22-isolation liquid inlet, 23-isolation liquid outlet, 24-flushing port, 25-isolation chamber. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example 1

[0020] See also Figure 1 and Figure 2A compact isolated air cooling system for double-end mechanical seals, comprising an upper liquid storage tank 1, the bottom surface of which is connected to a lower liquid storage tank 3 via a plurality of liquid infusion pipes 2, each of which is connected to a spiral dry heat fin 4 on its periphery, an inlet pipe 5 connected to the upper liquid storage tank 1, and an outlet pipe 6 connected to the lower liquid storage tank 3, the inlet pipe 5 and Figure 2 The A port is connected, and the liquid outlet pipe 6 is connected to the B port.

[0021] The upper part of the upper liquid storage tank 1 is connected with a liquid replenishing port 7, and a first ball valve 19 is installed at the liquid replenishing port 7. Isolation liquid can be added through the liquid replenishing port, and the isolation liquid is slowly injected into the upper liquid storage tank through the funnel. During the liquid injection process, it is recommended to continuously rotate the wheel so that the gas in the sealing cavity and the pipeline can be discharged and filled with the sealing liquid. The top of the upper liquid storage tank 1 is connected with an exhaust pipe 8, and the exhaust pipe 8 is installed with a second ball valve 9 and a pressure switch 10, and the pressure switch 10 is provided with a pressure gauge 11. The lower liquid storage tank 3 is connected with a liquid level transmitter 12, and the liquid level transmitter 12 is connected to the upper liquid storage tank 1 through a liquid level tube 13. A thermometer 14 is installed on the upper liquid storage tank 1 near the infusion tube 2. A liquid level meter 15 is installed on the upper liquid storage tank 1. The operating status of the seal is analyzed and monitored by parameters such as pressure and liquid level.

[0022] The working principle of this embodiment is as follows: Figure 2 , Figure 3 As shown, the isolation liquid in the upper liquid storage tank 1 enters the lower liquid storage tank 3 through multiple infusion tubes 2. During the flow, the external wind can blow air to the heat dissipation fins 4, and the heat dissipation fins 4 can be used to quickly cool the isolation liquid, reducing the length and volume of the coolant pipe. There is no need to set a spiral coolant pipe in the upper liquid storage tank, which reduces the production difficulty and reduces the cost. Moreover, the cooling does not require coolant, and the temperature of the isolation liquid can be reduced. It has many usage scenarios and is more convenient. The isolation liquid enters the isolation cavity 25 from the lower liquid storage tank, so that the pressure on the outside is greater than the pressure in the inner sealing cavity 21, thereby preventing the fluid in the sealing cavity from overflowing.

[0023] Example 2

[0024] On the basis of Example 1, a drain pipe 16 is installed at the bottom of the lower liquid storage tank 3, a third ball valve 17 is installed on the drain pipe 16, and a sewage pipe 18 is connected between the drain pipe 16 and the upper liquid storage tank 1. When the isolation liquid enters the upper liquid storage tank, the contaminated isolation liquid on the upper layer of the isolation liquid can be discharged through the sewage pipe 18.

[0025] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A compact isolated air cooling system for double-end mechanical seals, characterized in that: The invention comprises an upper liquid storage tank (1), the bottom surface of which is connected to a lower liquid storage tank (3) via a plurality of liquid infusion pipes (2), the periphery of each liquid infusion pipe (2) being connected to a spiral-shaped dry heat fin (4), the upper liquid storage tank (1) being connected to a liquid inlet pipe (5), and the lower liquid storage tank (3) being connected to a liquid outlet pipe (6).

2. A compact isolated air cooling system for double-end mechanical seals according to claim 1, characterized in that: The upper portion of the upper liquid storage tank (1) is connected to a liquid replenishing port (7), a first ball valve (19) is installed at the liquid replenishing port, the top of the upper liquid storage tank (1) is connected to an exhaust pipe (8), a second ball valve (9) and a pressure switch (10) are installed on the exhaust pipe (8), and a pressure gauge (11) is provided on the pressure switch (10).

3. A compact isolated air cooling system for double-end mechanical seals according to claim 2, characterized in that: The lower liquid storage tank (3) is connected to a liquid level transmitter (12), and the liquid level transmitter (12) is connected to the upper liquid storage tank (1) via a liquid level pipe (13).

4. A compact isolated air cooling system for double-end mechanical seals according to claim 3, characterized in that: A temperature gauge (14) is installed on the upper liquid storage tank (1) near the liquid infusion tube (2).

5. A compact isolated air cooling system for double-end mechanical seals according to claim 4, characterized in that: A liquid level meter (15) is installed on the upper liquid storage tank (1).

6. A compact isolated air cooling system for double-end mechanical seals according to claim 5, characterized in that: A liquid discharge pipe (16) is installed at the bottom of the lower liquid storage tank (3), a third ball valve (17) is installed on the liquid discharge pipe (16), and a sewage discharge pipe (18) is connected between the liquid discharge pipe (16) and the upper liquid storage tank (1).

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