CN205435889U - Sand mill with liquid cooling device is sealed to self -loopa formula - Google Patents

Abstract

The utility model relates to a sand mill with a self-circulating sealing liquid cooling device, which comprises a sand mill body (1), a bracket (2), a sealing liquid storage tank (3) and a mechanical seal (9). The tank (3) is fixed on the bracket (2), the bracket (2) is placed on the upper part of the sand mill body (1), the sealing liquid storage tank (3) has a built-in spiral coil for cooling water, and the sealing liquid storage tank (3 ) the outlet of the sealing fluid at the bottom is connected to the inlet below the mechanical seal (9) through the hose two 15, and the outlet above the mechanical seal (9) is connected to the inlet in the middle of the sealing fluid storage tank (3) through the hose one (8). Sealing liquid storage tank (3), hose two 15, mechanical seal (9), and hose one (8) form a sealing liquid circuit, and the inside of mechanical seal (9) is a self-priming blade structure; the utility model realizes sealing liquid The unique self-circulation cooling solves the technical problem that there is no temperature sensor and no liquid level sensor, and it cannot automatically alarm and stop.

Description

A sand mill with a self-circulating sealing liquid cooling device

[technical field]

The utility model relates to the technical field of sand mill sealing liquid cooling, in particular to a sand mill with a self-circulating sealing liquid cooling device.

[Background technique]

Due to its excellent sealing performance, double-end mechanical seals are widely used in various types of sand mill industries. At present, the existing mechanical seal cooling device can only perform simple injection and recovery of the sealing liquid, which mainly has the following disadvantages: on the one hand, there is no temperature sensor for the sealing liquid circuit, and the machine cannot automatically stop when the temperature is high, which is easy to damage the expensive The mechanical seal is severely damaged; on the other hand, there is no liquid level sensor, and it cannot automatically detect the lowest level and alarm to stop.

[utility model content]

The purpose of this utility model is to solve the above-mentioned deficiencies and provide a sand mill with a self-circulating sealing liquid cooling device, which realizes the self-circulating cooling of the sealing liquid, and solves the problem of no temperature sensor and no liquid level sensor, which cannot automatically The technical problem of alarm shutdown.

In order to achieve the above purpose, a sand mill with a self-circulating sealing liquid cooling device is designed, including a sand mill body 1, a bracket 2, a sealing liquid storage tank 3 and a mechanical seal 9, and the sealing liquid storage tank 3 is fixed on the support 2, the bracket 2 is placed on the upper part of the sand mill body 1, the sealing liquid storage tank 3 is built with a spiral coil for cooling water, and the sealing liquid outlet at the bottom of the sealing liquid storage tank 3 passes through the hose 2 15 It is connected to the inlet below the mechanical seal 9, and the outlet above the mechanical seal 9 is connected to the inlet of the middle part of the sealing liquid storage tank 3 through the hose one 8, the sealing fluid storage tank 3, the hose two 15, the mechanical seal 9, The hose one 8 constitutes a sealing fluid circuit, and the inside of the mechanical seal 9 is a self-priming blade structure.

A temperature switch 7 is provided on the hose 1 of the sealing liquid circuit, and the temperature switch 7 is connected to the alarm 1 through a line.

The upper part of the sealing liquid storage tank 3 is provided with a liquid level sensor 5, and the liquid level sensor 5 is connected to the alarm 2 through a line.

The upper part of the sealing liquid storage tank 3 is provided with a safety valve 6, and the safety valve 6 is connected to the leakage liquid container 16 through the air pipe 2 17.

The upper part of the sealing liquid storage tank 3 is provided with a pressure-holding gas inlet and a pressure gauge 4, and the pressure-holding gas inlet is connected to a pressure-holding gas pipeline through a gas pipe 14, and a hose joint 10, Pneumatic push-in connector 11, air filter 12 and pressure switch 13.

The sealing liquid storage tank 3 is provided with a liquid level observation window.

Compared with the prior art, the utility model has the following advantages:

(1) The self-circulating cooling of the sealing liquid is formed through the self-priming blade structure inside the mechanical seal, which reduces the use of circulating pumps;

(2) By installing a temperature switch on the sealing liquid circuit, the temperature of the liquid in the sealing liquid circuit can be monitored in real time, which avoids damage to the mechanical seal due to high temperature and improves the service life of the mechanical seal;

(3) The liquid level sensor on the sealing liquid storage tank can monitor the minimum and maximum liquid levels of the sealing liquid in real time, avoiding the dry grinding phenomenon of the mechanical seal caused by the low liquid level;

(4) The pressure-holding gas in the sealing liquid storage tank keeps the pressure of the liquid in the mechanical seal at a stable pressure. The stable pressure in the mechanical seal can effectively and automatically compensate the pressure fluctuation caused by the material to ensure the reliability of the seal.

[Description of drawings]

Fig. 1 is a structural representation of the utility model;

In the figure: 1, sand mill body 2, bracket 3, sealing liquid storage tank 4, pressure gauge 5, liquid level sensor 6, safety valve 7, temperature switch 8, hose one 9, mechanical seal 10, hose connector 11 , Pneumatic push-in connector 12, air filter 13, pressure switch 14, air pipe one 15, hose two 16, leakage liquid container 17, air pipe two.

[detailed description]

Below in conjunction with accompanying drawing, the utility model is further described as follows:

As shown in Figure 1, the utility model includes: a sand mill body 1, a bracket 2, a sealing liquid storage tank 3, a pressure gauge 4, a liquid level sensor 5, a safety valve 6, a temperature switch 7, a hose 8, a mechanical Seal 9, hose connector 10, pneumatic quick-plug connector 11, air filter 12, pressure switch 13, gas pipe 141, hose 2 15, leakage liquid container 16 and gas pipe 2 17, sealing liquid storage tank 3 fixed on the bracket 2, the bracket 2 is placed on the upper part of the sand mill body 1, and the sealing liquid storage tank 3 has a built-in spiral coil through which cooling water can pass through, so as to take away the heat in the sealing liquid, so that the sealing liquid in the tank is always in a low temperature state, sealing The liquid storage tank 3 is provided with a liquid level observation window, which is convenient for real-time observation of the liquid level.

Wherein, the sealing liquid outlet at the bottom of the sealing liquid storage tank 3 is connected to the inlet below the mechanical seal 9 through the hose 2 15 to form a sealing liquid inlet path, and the outlet above the mechanical seal 9 is connected to the middle of the sealing liquid storage tank 3 through the hose 1 8 The inlet of the mechanical seal 9 is connected to form the circuit of the sealing liquid. The interior of the mechanical seal 9 is a self-priming blade structure. The sealing liquid flows back into the sealing liquid storage tank 3 to take away the heat in the mechanical seal 9 to achieve the cooling effect of the mechanical seal; a temperature switch 7 is installed on the hose 18 of the sealing liquid circuit to monitor the temperature in the sealing liquid circuit , when it reaches the maximum temperature set by the process, it will stop and alarm.

The upper part of the sealing liquid storage tank 3 is provided with a liquid level sensor 5, which can monitor the minimum and maximum liquid levels of the sealing liquid in real time. When the liquid level is lower than the minimum liquid level or higher than the maximum liquid level, it will stop and give an alarm.

The upper part of the sealing liquid storage tank 3 is provided with a safety valve 6, which can monitor the pressure value inside the sealing liquid storage tank 3 in real time. 17 is discharged into the leakage liquid container 16 to ensure that the pressure value inside the sealing liquid storage tank 3 is always in a normal state.

The upper part of the sealing liquid storage tank 3 is provided with a pressure-holding gas inlet and a pressure gauge 4, and a hose joint 10, a pneumatic quick-plug joint 11, an air filter 12, and a pressure switch 13 are respectively arranged on the pressure-holding gas pipeline. 14 is connected with the pressure-holding gas inlet on the upper part of the sealing liquid storage tank 3 to form a pressure-holding gas pipeline; the pressure gauge 4 can display its internal pressure value in real time; the air filter 12 can filter the particulate impurities in the imported air to ensure the follow-up The air quality in the pipeline; the pressure switch 13 can monitor the gas pressure in the pressure-holding gas pipeline in real time, and when the pressure is lower than the set value, it will stop and give an alarm.

The utility model is not limited by the above-mentioned embodiments, and any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the utility model should be equivalent replacement methods, and are all included in Within the protection scope of the present utility model.

Claims (6)

1. null1. a sand mill with self-circulation type sealing fluid chiller，It is characterized in that: include sand mill body (1)、Support (2)、Sealing fluid storage tank (3) and mechanical seal (9)，Described sealing fluid storage tank (3) is fixed on support (2)，Described support (2) is placed in sand mill body (1) top，Described sealing fluid storage tank (3) is built-in with the spiral coil of logical cooling water，The seal fluid outlet of described sealing fluid storage tank (3) bottom is connected by the import of flexible pipe two (15) with mechanical seal (9) lower section，The outlet of described mechanical seal (9) top is connected by the import of flexible pipe one (8) with sealing fluid storage tank (3) middle part，Described sealing fluid storage tank (3)、Flexible pipe two (15)、Mechanical seal (9)、Flexible pipe one (8) constitutes sealing fluid loop，Described mechanical seal (9) is internal is self-priming blade construction.
2. There is the sand mill of self-circulation type sealing fluid chiller the most as claimed in claim 1, it is characterized in that: the flexible pipe one (8) in described sealing fluid loop is provided with temperature switch (7), described temperature switch (7) passes through connection alarm one.
3. There is the sand mill of self-circulation type sealing fluid chiller the most as claimed in claim 1 or 2, it is characterized in that: described sealing fluid storage tank (3) top is provided with liquid level sensor (5), described liquid level sensor (5) passes through connection alarm two.
4. There is the sand mill of self-circulation type sealing fluid chiller the most as claimed in claim 3, it is characterized in that: described sealing fluid storage tank (3) top is provided with relief valve (6), described relief valve (6) connects leakage fluid container (16) by trachea two (17).
5. There is the sand mill of self-circulation type sealing fluid chiller the most as claimed in claim 4, it is characterized in that: described sealing fluid storage tank (3) top is provided with pressurize gas access and Pressure gauge (4), described pressurize gas access connects pressurize gas piping by trachea one (14), and described pressurize gas piping is provided with hose coupling (10), pneumatic fast plug (11), air filter (12) and pressure switch (13).
6. There is the sand mill of self-circulation type sealing fluid chiller the most as claimed in claim 5, it is characterised in that: described sealing fluid storage tank (3) is provided with observation window of liquid level mouth.