CN219664630U

CN219664630U - Cleaning device for stock solution inlet and outlet hose

Info

Publication number: CN219664630U
Application number: CN202320148970.0U
Authority: CN
Inventors: 徐伟; 陈建功
Original assignee: Fujian Hengshen Synthetic Fiber Technology Co ltd
Current assignee: Fujian Hengshen Synthetic Fiber Technology Co ltd
Priority date: 2023-02-02
Filing date: 2023-02-02
Publication date: 2023-09-12
Anticipated expiration: 2033-02-02

Abstract

The utility model relates to the field of spandex production, in particular to a cleaning device for a stock solution inlet and outlet hose. Comprises a solvent storage tank, a circulating water pump and a cleaning tank which are sequentially and circularly connected; the two ends of the cleaning tank are respectively connected with a forward cleaning pipeline and a reverse cleaning pipeline; the forward cleaning pipeline and the reverse cleaning pipeline are connected in parallel, and the liquid inlets and the liquid outlets of the forward cleaning pipeline and the reverse cleaning pipeline are opposite in direction. The utility model has the advantages that: the cleaning tank is connected with the solvent storage tank through a circulating pipeline, so that automatic cleaning is realized. Automatic cleaning and reverse cleaning are realized through valve switching, and cleaning efficiency is improved. The cleaning cylinder does not need to be rotated, so that the damage to the hose is avoided.

Description

Cleaning device for stock solution inlet and outlet hose

Technical Field

The utility model relates to the field of spandex production, in particular to a cleaning device for a stock solution inlet and outlet hose.

Background

The stock solution hose is a main spare part for components in spandex production, has a complex structure and is divided into a stock solution inlet pipe and a stock solution return pipe. After the raw liquid hose is used for a period of time, the raw liquid flow rate in the hose is slow and the viscosity is high, the wall of the hose can generate a retention layer, the retention layer is gradually thickened along with the extension of the use time, and each lifting position in the production can lead the retention layer to be subjected to a certain external force, so that the retention layer which is gradually thickened falls off, and the normal production is influenced by the fact that the raw liquid hose enters a filter screen in front of a spinneret plate through a spinning metering pump, and therefore the raw liquid hose needs to be replaced for cleaning.

The original liquid hose which is replaced periodically is improperly cleaned, so that the original liquid hose is damaged, the follow-up production is light, the workload is increased due to material leakage, and even a serious parking accident is caused. Therefore, the cleaning mode and the cleaning temperature of the stock solution pipe are strict, and the control of the cleaning temperature is very important without bending as much as possible in the cleaning process.

At present, the cleaning of the spandex stock solution hose is carried out by immersing the hose in a cleaning cylinder for cleaning, and rotating the cleaning cylinder to achieve better cleaning effect. However, the cleaning mode is not good in cleaning effect due to the small diameter of the hose, and the raw liquid pipe is easily damaged due to the rotation of the cleaning cylinder.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a cleaning device for a stock solution inlet and outlet hose, which realizes automatic cleaning and reverse cleaning and improves cleaning efficiency.

The utility model is realized in the following way:

a cleaning device for a stock solution inlet and outlet hose comprises a solvent storage tank, a circulating water pump and a cleaning tank which are sequentially and circularly connected; the two ends of the cleaning tank are respectively connected with a forward cleaning pipeline and a reverse cleaning pipeline; the forward cleaning pipeline and the reverse cleaning pipeline are connected in parallel, and the liquid inlets and the liquid outlets of the forward cleaning pipeline and the reverse cleaning pipeline are opposite in direction.

Further, the outlet of the circulating water pump is provided with a pressure gauge.

Further, a filter is arranged on the connecting pipeline of the solvent storage tank and the circulating water pump.

Further, a solvent inlet, an exhaust port and a solvent return port are formed in the top of the solvent storage tank, and a heating coil is arranged in the solvent storage tank.

Further, a compressed air inlet pipe is connected to the connecting pipeline branch of the circulating water pump and the cleaning tank.

Further, the forward cleaning pipeline and the reverse cleaning pipeline are branch pipelines at two ends of the cleaning tank.

Further, a desalted water inlet pipe is connected to the connecting pipeline branch of the circulating water pump and the cleaning tank.

Further, the cleaning tank is placed in a high-low mode, and a drain outlet is formed in one low end of the cleaning tank.

Further, a solvent recovery pipe is connected to the connecting pipeline branch of the circulating water pump and the cleaning tank.

Still further, the solvent recovery line is connected to a refining system.

The utility model has the advantages that: the cleaning tank is connected with the solvent storage tank through a circulating pipeline, so that automatic cleaning is realized. Automatic cleaning and reverse cleaning are realized through valve switching, and cleaning efficiency is improved. The cleaning cylinder does not need to be rotated, so that the damage to the hose is avoided.

Drawings

The utility model will be further described with reference to examples of embodiments with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of the present utility model.

The reference numerals in the figures are: a solvent storage tank 1, a solvent inlet 11, an exhaust port 12, a solvent return port 13, a circulating water pump (cleaning pump) 2, a cleaning tank 3, a sewage outlet 31, a filter 4, a compressed air inlet pipe 5, a desalted water inlet pipe 6, a solvent recovery pipe 7 and a stock solution hose 100;

valve one 10, valve two 20, valve three 30, valve four 40, valve five 50, valve six 60, valve seven 70, valve eight 80;

s: steam generation

SC: steam condensate

SOL: solvent(s)

VACL: solvent gas recovery

F: basket filter

DW: desalted water

P: canned motor pump

LT: liquid level meter

PG: diaphragm pressure gauge

CA: compressed air.

Detailed Description

In the description of the present utility model, it should be understood that the description of indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The technical scheme of the utility model is as follows:

referring to fig. 1, the cleaning device for a stock solution inlet and outlet hose of the present utility model comprises a solvent storage tank 1, a circulating water pump 2 and a cleaning tank 3 which are sequentially and circularly connected; the two ends of the cleaning tank 3 are respectively connected with a forward cleaning pipeline and a reverse cleaning pipeline; the forward cleaning pipeline and the reverse cleaning pipeline are connected in parallel, and the liquid inlets and the liquid outlets of the forward cleaning pipeline and the reverse cleaning pipeline are opposite in direction.

In a preferred embodiment, the circulating water pump 2 is a canned motor pump.

In a further technical scheme, the outlet of the circulating water pump 2 is provided with a pressure gauge. Besides adopting the positive washing and the back washing modes, the cleaning effect can be increased by adjusting the pressure of the cleaning pump outlet, and the cleaning effect can be adjusted by a flow valve or an automatic adjusting valve.

In a further technical scheme, the filter 4 is arranged on the connecting pipeline of the solvent storage tank 1 and the circulating water pump 2, so that particles which cannot be completely dissolved can be filtered, and the hose is prevented from being blocked again.

In a preferred embodiment, the filter is a basket filter.

Specifically, the solvent storage tank 1 is a cylindrical closed tank body, and the top is provided with a solvent inlet 11, an exhaust port 12 and a solvent return port 13, and is connected with corresponding pipelines. The solvent storage tank 1 adopts an internal coil pipe type steam heating mode, and the heating temperature is preferably controlled to be 110-120 ℃ according to the material and structure of a stock solution pipe.

Specifically, the connection pipelines of the circulating water pump 2 and the cleaning tank 3 are respectively branched and connected with a compressed air inlet pipe 5, a desalted water inlet pipe 6 and a solvent recovery pipe 7.

The cleaning tank 3 is a sealed cylinder body, is placed at high and low, and a drain outlet 31 is arranged at one low end. The cleaning tank 3 is arranged at the height, so that the cleaning tank is convenient to place, the hose length is 2.5 meters, the occupied space is large, and the horizontal placement can save space. On the other hand, the residues in the hose are easier to soften and dissolve and flow out from the lower part when the hose is in the first forward washing, so that the washing time is shortened, and the washing quality is improved.

Specifically, the path of the forward cleaning pipeline is as follows: the outlet end of the cleaning pump 2, the higher end of the cleaning tank 3, the lower end of the cleaning tank 3 and the solvent storage tank return port 12; the path of the reverse cleaning pipeline is as follows: the outlet end of the cleaning pump 2, the lower end of the cleaning tank 3, the upper end of the cleaning tank 3 and the solvent storage tank return port 12.

The remaining valve components are as follows:

the cleaning device comprises a cleaning pump, a cleaning tank, a solvent storage tank, a valve I10, a valve II 20, a valve III 30, a valve IV 40 and a valve V50, wherein the cleaning pump and the cleaning tank are sequentially arranged on a connecting pipeline, the valve III 60 and the valve V70 are sequentially arranged on a reverse cleaning pipeline at two ends of the cleaning tank, the valve V80 is arranged on a reverse cleaning pipeline branched from the higher end of the cleaning tank, the valve V80 and the valve V40 are positioned on different branch pipelines, and finally, the collected main pipeline returns to the solvent storage tank 1.

The specific operation is as follows:

1. preparation stage

The solvent feed valve is opened, DMAC solvent is sent to the solvent reservoir up to a certain level, and then the solvent feed valve is closed.

The stock solution hose 100 to be cleaned is vertically placed in the right-side cleaning tank, and the solvent is heated to a controlled temperature in the tank for cyclic cleaning.

2. Cleaning stage

Positive cleaning:

the flow direction of the solvent is as follows: valve one 10, valve two 20, valve three 30, valve four 40 and valve five 50.

And (3) a reverse cleaning stage:

the flow direction of the solvent is as follows: valve one 10, valve six 60, valve seven 70, valve eight 80 and valve five 50.

Because the diameter of the stock solution pipe is smaller, the viscosity of the stock solution is larger, a large amount of solvent is needed during cleaning, and the solvent is adopted for reversing cleaning, so that the cleaning efficiency is greatly improved, and the solvent consumption is reduced.

3. Purge stage

After cleaning, the water pump is closed, the compressed air inlet valve is opened, and the solvent in the cleaning cylinder is blown into the solvent storage tank by using compressed air (the storage tank is communicated with the gas recovery system through a VACL pipeline, so that the phenomenon of pressure holding of the storage tank is avoided).

4. Cooling stage

The desalted water inlet valve is opened, desalted water is injected to cool the stock solution pipe, and the desalted water containing a small amount of solvent after cooling enters a spinning 5010 square box (not shown) through a blow-down valve for recovery.

5. Solvent recovery

The solvent recovery valve is opened and DMAC solvent reaching the critical concentration is sent to a purification system (not shown) for recovery.

As shown in fig. 1, one of ordinary skill in the art will recognize that any of the above stages, by default, closes valves that are not on the working line in other stages when the corresponding valve is opened.

While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that the specific embodiments described are illustrative only and not intended to limit the scope of the utility model, and that equivalent modifications and variations of the utility model in light of the spirit of the utility model will be covered by the claims of the present utility model.

Claims

1. The utility model provides a belt cleaning device of stoste business turn over hose which characterized in that: comprises a solvent storage tank, a circulating water pump and a cleaning tank which are sequentially and circularly connected; the two ends of the cleaning tank are respectively connected with a forward cleaning pipeline and a reverse cleaning pipeline; the forward cleaning pipeline and the reverse cleaning pipeline are connected in parallel, and the liquid inlets and the liquid outlets of the forward cleaning pipeline and the reverse cleaning pipeline are opposite in direction; the path of the forward cleaning pipeline is as follows: the outlet end of the cleaning pump, the higher end of the cleaning tank, the lower end of the cleaning tank and the return port of the solvent storage tank; the path of the reverse cleaning pipeline is as follows: the outlet end of the cleaning pump, the lower end of the cleaning tank, the higher end of the cleaning tank and the return port of the solvent storage tank.

2. The cleaning apparatus for liquid ingress and egress hoses of claim 1 wherein: and the outlet of the circulating water pump is provided with a pressure gauge.

3. The cleaning apparatus for liquid ingress and egress hoses of claim 1 wherein: and a filter is arranged on the connecting pipeline of the solvent storage tank and the circulating water pump.

4. The cleaning apparatus for liquid ingress and egress hoses of claim 1 wherein: the top of the solvent storage tank is provided with a solvent inlet, an exhaust port and a solvent return port, and a heating coil is arranged in the solvent storage tank.

5. The cleaning apparatus for liquid ingress and egress hoses of claim 1 wherein: the connecting pipeline branch of the circulating water pump and the cleaning tank is connected with a compressed air inlet pipe.

6. The cleaning apparatus for liquid ingress and egress hoses of claim 1 wherein: the forward cleaning pipeline and the reverse cleaning pipeline are branch pipelines at two ends of the cleaning tank.

7. The cleaning apparatus for liquid ingress and egress hoses of claim 1 wherein: and a desalted water inlet pipe is connected to the branch of the connecting pipeline of the circulating water pump and the cleaning tank.

8. The cleaning apparatus for liquid ingress and egress hoses of claim 1 wherein: the cleaning tank is placed high and low, and a drain outlet is arranged at one end of the cleaning tank, which is low.

9. The cleaning apparatus for liquid ingress and egress hoses of claim 1 wherein: and a solvent recovery pipe is connected with the branch of the connecting pipeline of the circulating water pump and the cleaning tank.

10. The cleaning apparatus for fluid ingress and egress hoses of claim 9 wherein: the solvent recovery pipe is connected with the refining system.