High-pressure sealing water system for high-temperature wire machine
By designing a high-pressure sealing water system, the problem of unstable water quality and pressure in the mechanical seal of the high-temperature filamentation machine was solved, ensuring stable operation of the equipment and protecting the sealing surface during power outages, thus achieving a stable supply of water quality and pressure.
Patent Information
- Application Number
- CN202423322166.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The mechanical seal of the high-temperature filamentation machine was damaged due to substandard water quality and unstable water pressure in the water supply pipeline, which affected the stable operation of the equipment.
A high-pressure sealing water system was designed, including a water supply pipe, a pump module, a filter module, an inlet module, and a return module. It adopts a multi-stage centrifugal pump and filter, and sets up branches and accumulators to ensure good water quality and stable pressure. It also provides stored sealing water in the event of a power outage and supports individual maintenance and replacement of the centrifugal pump and filter.
It achieves a stable supply of water quality and pressure to the mechanical seal, prevents damage to the sealing surface, ensures normal operation of the equipment in the event of a power outage, and supports the continuous and stable operation of the equipment.
Smart Images
Figure CN223706107U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to high temperature filature machine technical field, specifically related to a high pressure sealing water system for high temperature filature machine. BACKGROUND
[0002] In the papermaking industry, high temperature filature machine (hot mill or high pressure mill etc.) as the key core equipment of pulping, equipment power is big, rotational speed is high, internal pressure is high, and the cost of supporting mechanical seal is high. Whether the mechanical seal running state is good, directly influences the stable operation of equipment. Guaranteeing the stable operation of equipment internal mechanical seal, good sealing water quality and stable sealing water pressure are the key. The sealing water in the water supply pipeline of equipment operation site often stores the water quality that does not reach the standard, and contains more impurities, these impurities enter mechanical seal and can damage the sealing surface, lead to mechanical seal damage. Moreover, the water pressure in the pipeline is unstable, leading to the unstable water amount entering mechanical seal, and even the water pressure is less than the internal pressure of high temperature filature machine, the sealing water cannot enter the coupling surface of mechanical seal, leading to the dry burning of coupling surface, and damaging mechanical seal. SUMMARY
[0003] The utility model discloses a high pressure sealing water system for high temperature filature machine, make the sealing water water pressure that enters mechanical seal stable and water quality is good.
[0004] To achieve the above object, the utility model adopts the following technical scheme:
[0005] High pressure sealing water system for high temperature filature machine, including water supply pipe, pump module, filter module, water inlet module, pump module is connected with water supply pipe, and pump module includes centrifugal pump, and pump module is connected with filter module, and filter module includes filter, and water inlet module includes first flowmeter, first check valve, first pressure sensor that are connected in water inlet pipe in proper order, and the tail end of water inlet pipe is used for connecting mechanical seal, and first pressure sensor is equipped with branch water pipe between first check valve, and first valve, accumulator are equipped on branch water pipe.
[0006] Further, the pump module is provided with two and is arranged in parallel, and the pump module includes a second valve, a second check valve, and the centrifugal pump is arranged between the second valve and the second check valve.
[0007] Further, the filter is provided with two and is arranged in parallel, and the filter module further includes two-position three-way valves, and the filter module is connected with the pump module and the water inlet module through one two-position three-way valve respectively.
[0008] Further, a second pressure gauge is arranged between the pump module and the filter module.
[0009] Further, a first pressure gauge is arranged on the water inlet pipeline, and the first pressure gauge is located at a position downstream of a connection point between the water inlet pipeline and the branch water pipe.
[0010] Further, the water inlet pipeline is connected with a flushing water pipeline, the flushing water pipeline is connected at a position upstream of the first flow meter, and the flushing water pipeline comprises a third valve, a second flow meter, a third one-way valve, a second pressure sensor, and a third pressure gauge.
[0011] Further, the second valve is a ball valve, and the first valve and the third valve are stop valves.
[0012] Further, the high-pressure sealing water system further comprises a backwater module, and the backwater module comprises a fourth pressure gauge, a third pressure sensor, and a fourth valve arranged in sequence.
[0013] The high-pressure sealing water system has the following beneficial effects:
[0014] The high-pressure sealing water system has the following beneficial effects:
[0015] The two centrifugal pumps and the filter are arranged in parallel and can work independently, so that the centrifugal pump and the filter can be maintained and replaced without stopping the machine, and stable operation of the equipment is ensured.
[0016] The centrifugal pump is a multistage centrifugal pump, and the water supply pressure is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is a schematic diagram of the high-pressure sealing water system for the high-temperature drawing machine.
[0018] Corresponding names of various marks in the drawing are as follows:
[0019] 1, second valve; 2, centrifugal pump; 3, second one-way valve; 4, second pressure gauge; 5, two-position three-way valve; 6, filter; 7, first flow meter; 8, first one-way valve; 9, first pressure sensor; 10, first pressure gauge; 11, first valve; 12, energy accumulator; 13, third valve; 14, second flow meter; 15, third one-way valve; 16, second pressure sensor; 17, third pressure gauge; 18, fourth pressure gauge; 19, third pressure sensor; 20, fourth valve. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art belong to the scope of protection of the utility model.
[0021] Embodiments of the utility model:
[0022] As Figure 1 Indicated, high temperature silk machine with high pressure sealing water system, including water supply pipe, pump module, filter module, water inlet module, backwater module. Pump module is connected with water supply pipe, one end of water supply pipe is water supply, can be water tank and so on. Water inlet module includes first flowmeter 7, first check valve 8, first pressure sensor 9, first pressure gauge 10 that are connected in turn on water inlet pipe, first flowmeter 7 adopts electromagnetic flowmeter. The end of water inlet pipe is used to connect mechanical seal, provides sealing water, and the structure of mechanical seal is not repeated, is not the innovation point of the case.
[0023] First pressure sensor 9 and first check valve 8 between the branch water pipe is equipped with first valve 11, energy accumulator 12, first valve 11 adopts stop valve. When normal operation, first valve 11 opens, and the sealing water of high pressure enters energy accumulator 12 from the branch water pipe of water inlet pipe, is used to store sealing water, and the pressure in energy accumulator 12 and water inlet pipe pressure balance. When power failure occurs, the sealing water stored in energy accumulator 12 returns to water inlet pipe, and due to the action of first check valve 8, the sealing water will not flow back, enters the mechanical seal, ensures that the mechanical seal of high temperature silk machine running by inertia after power failure will not be damaged due to water shortage.
[0024] In the embodiment, two pump modules are provided and are connected in parallel, and the pump module includes a second valve 1, a centrifugal pump 2 and a second check valve 3. The second valve 1 is a ball valve, and other types of valves that can be opened and closed can also be used in other embodiments. The pump module is connected with the filter module, and the filter module includes a filter 6. The centrifugal pump 2 is a multi-stage centrifugal pump 2, which improves the water supply pressure. The pump module provides water supply power, and after the water is filtered to remove some impurities by the filter module, it is delivered to the water inlet module, thereby reducing the influence of impurities in the water on the mechanical seal.
[0025] By opening and closing the second valve 1, the two centrifugal pumps 2 can be switched to work independently, and the maintenance and replacement of the centrifugal pumps 2 can be carried out without stopping the machine, thereby ensuring the stable operation of the equipment.
[0026] Further, the filter 6 is also provided with two and arranged in parallel, the filter module also includes two three-way valve 5, the filter module is connected with the pump module and the water inlet module through a two-position three-way valve 5 at both ends. Using two-position three-way valve 5 can switch two filters 6 to work alone, can be carried out without stopping the filter 6 maintenance and replacement filter operation.
[0027] The first pressure gauge 10 is arranged between the pump module and the filter module. The second pressure gauge 4 is arranged on the water inlet pipeline, and the second pressure gauge 4 is located downstream of the connection point of the water inlet pipeline and the branch water pipe. By comparison, the difference between the values of the first pressure gauge 10 and the second pressure gauge 4 can determine the blockage of the filter 6, and the filter core can be replaced in time.
[0028] The water inlet pipeline is connected with a flushing water pipeline, the flushing water pipeline is connected at the upstream position of the first flow meter 7, and the flushing water pipeline comprises a third valve 13, a second flow meter 14, a third one-way valve 15, a second pressure sensor 16 and a third pressure gauge 17. The third valve 13 is a stop valve, and the second flow meter 14 is an electromagnetic flow meter. Through the detection of the second flow meter 14 and the second pressure sensor 16, the blockage of the flushing water pipeline can be accurately determined and prevented, and the accumulation of impurities near the mechanical seal can be prevented.
[0029] The high-pressure sealing water system further comprises a backwater module, the backwater module comprises a fourth pressure gauge 18, a third pressure sensor 19 and a fourth valve 20 arranged in sequence, and the fourth valve 20 is a stop valve. Through the detection of the third pressure sensor 19, combined with the detection of the first pressure sensor 9 and the first flow meter 7 arranged on the water inlet pipeline, it can be determined whether the mechanical seal is blocked. By adjusting the fourth valve 20, the pressure of the mechanical seal inlet water can be kept constant. The backwater module is connected with the mechanical seal water outlet, and the water can be recycled.
Claims
1. A high-pressure sealing water system for a high-temperature silk-forming machine, characterized in that: It includes a water supply pipe, a pump module, a filter module, and an inlet module. The pump module is connected to the water supply pipe and includes a centrifugal pump. The pump module is also connected to the filter module, which includes a filter. The inlet module includes a first flow meter, a first check valve, and a first pressure sensor connected in sequence to the inlet pipe. The end of the inlet pipe is used to connect a mechanical seal. A branch water pipe is provided between the first pressure sensor and the first check valve. A first valve and an accumulator are provided on the branch water pipe.
2. The high-pressure sealing water system for a high-temperature silk-forming machine according to claim 1, characterized in that: The pump module has two units connected in parallel. The pump module includes a second valve and a second check valve, and the centrifugal pump is located between the second valve and the second check valve.
3. The high-pressure sealing water system for a high-temperature silk-forming machine according to claim 2, characterized in that: The filter module is provided with two filters connected in parallel. The filter module also includes a two-position three-way valve. The filter module is connected to the pump module and the water inlet module through a two-position three-way valve.
4. The high-pressure sealing water system for a high-temperature silk-forming machine according to claim 3, characterized in that: A second pressure gauge is installed between the pump module and the filter module.
5. The high-pressure sealing water system for a high-temperature silk-forming machine according to claim 1, characterized in that: A first pressure gauge is installed on the inlet pipe, and the first pressure gauge is located downstream of the connection point between the inlet pipe and the branch water pipe.
6. The high-pressure sealing water system for a high-temperature silk-forming machine according to claim 5, characterized in that: The inlet water pipe is connected to a flushing water pipe, which is located upstream of the first flow meter. The flushing water pipe includes a third valve, a second flow meter, a third check valve, a second pressure sensor, and a third pressure gauge.
7. The high-pressure sealing water system for a high-temperature silk-forming machine according to claim 6, characterized in that: The second valve is a ball valve, while the first and third valves are gate valves.
8. The high-pressure sealing water system for a high-temperature silk-forming machine according to claim 1, characterized in that: The high-pressure sealing water system also includes a return water module, which includes a fourth pressure gauge, a third pressure sensor, and a fourth valve arranged in sequence.