Dyeing overpressure control device and dyeing equipment

Abstract

The utility model provides a dyeing overpressure control device and dyeing equipment. The problem that an existing dyeing machine cannot accurately control pressure is solved. The device comprises a dye vat, a main pressure balance pipe is communicated between a machine head and a machine tail of the dye vat, the main pressure balance pipe is connected with a pressure sensor through a first branch pipe, the main pressure balance pipe is connected with a safety valve through a branch pipe opening, the main pressure balance pipe is connected with a pressurization valve through a second branch pipe, and the main pressure balance pipe is further connected with a pressure reduction assembly. The high-precision pressure sensor is matched with the pneumatic Y-shaped valve, accurate control over pressure in the dye vat is guaranteed, the problem that the pressure is too high or too low is solved, and therefore the high-precision pressure control device is applied to the high-precision pressure dyeing process, and the quality of finished products is improved. The safety valve and the pressure reduction assembly effectively prevent the overpressure condition in the dye vat, the small-caliber overpressure discharge valve works, the pressure is discharged to the pressure value within the set range through the pressure discharge pipe, and the equipment safety is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a dyeing machine, in particular to a dyeing overpressure control device and a dyeing equipment. Background Art

[0002] The dyeing machine is made of all stainless steel, and mechanical speed regulation has the advantages of no noise and convenient speed regulation. It is applicable to knitted or woven fabrics such as hemp, cotton, rayon, and blended fabrics.

[0003] At present, the pressure control of high-temperature and high-pressure liquid flow dyeing machines is still an important aspect of control. During the normal dyeing process of high-temperature and high-pressure liquid flow dyeing machines, the maximum internal pressure of the machine body can reach 0.4 MPa. At present, the dyeing machines on the market are generally only equipped with safety valves to ensure that the internal pressure of the machine body does not exceed the rated pressure. However, it is very difficult to accurately control the body pressure for dyeing processes with certain pressure requirements, resulting in poor pressure control accuracy and poor dyeing effects, which affect the quality and grade of the finished products. Summary of the Utility Model

[0004] The purpose of the utility model is to address the above problems existing in the prior art and propose a dyeing overpressure control device and a dyeing equipment.

[0005] The purpose of the utility model can be achieved by the following technical solutions: A dyeing overpressure control device includes a dyeing vat. A main pressure balance pipe is connected between the head and the tail of the dyeing vat. A pressure sensor is connected to the main pressure balance pipe through a first branch pipe. A safety valve is connected to the main pressure balance pipe through a branch port. A pressurizing valve is connected to the main pressure balance pipe through a second branch pipe. A decompression assembly is also connected to the main pressure balance pipe.

[0006] In the above dyeing overpressure control device, the decompression assembly includes a pressure relief valve, a small-diameter overpressure discharge valve, and a pressure discharge pipe. The inlet of the pressure relief valve is connected to the main pressure balance pipe through a third branch pipe on one side of the safety valve. The inlet of the small-diameter overpressure discharge valve is connected to the main pressure balance pipe through a fourth branch pipe on the other side of the safety valve. The outlet of the pressure relief valve is connected to the pressure discharge pipe, and the outlet of the small-diameter overpressure discharge valve is connected to the pressure discharge pipe.

[0007] In the above dyeing overpressure control device, the head of the dyeing vat has a port that is inclined and upturned. A nozzle is arranged on the port. A first-end interface is arranged on the inclined wall of the head, and a tail-end interface is arranged on the horizontal wall of the tail.

[0008] In the above dyeing overpressure control device, the front port of the main pressure balance pipe is hermetically connected to the first-end interface, and the rear port of the main pressure balance pipe is hermetically connected to the tail-end interface.

[0009] In the above-mentioned dyeing overpressure control device, a vacuum break valve is connected to the main pressure balance pipe through a branch pipe.

[0010] In the above-mentioned dyeing overpressure control device, the vacuum break valve, the pressure increasing valve, the pressure sensor, the pressure relief valve, the safety valve, and the small-bore overpressure discharge valve are sequentially arranged from the front end to the rear end of the main pressure balance pipe.

[0011] In the above-mentioned dyeing overpressure control device, the pressure increasing valve, the pressure relief valve, and the small-bore overpressure discharge valve are all pneumatic Y-type valves.

[0012] In the above-mentioned dyeing overpressure control device, the inlet of the pressure increasing valve is connected to an external compressed air source pipeline, and the outlet of the pressure increasing valve is connected to the second branch pipe.

[0013] A dyeing device includes the above-mentioned dyeing overpressure control device.

[0014] Compared with the prior art, the present dyeing overpressure control device and the dyeing device have the following beneficial effects:

[0015] 1. Precise control: The cooperation of the high-precision pressure sensor and the pneumatic Y-type valve ensures the precise control of the pressure in the dyeing vat, prevents the problems of too high or too low pressure, and thus is applied to the dyeing process with high-precision pressure to improve the quality of the finished product.

[0016] 2. Overpressure protection: The safety valve and the pressure reducing component effectively prevent the overpressure situation inside the dyeing vat. The small-bore overpressure discharge valve works and discharges to the pressure value within the set range through the pressure relief pipe to ensure the safety of the equipment.

[0017] 3. Vacuum break function: The setting of the vacuum break valve can quickly eliminate the vacuum state in the dyeing vat, improving the operation flexibility and response speed.

[0018] 4. Reasonable structure: The design of the dyeing vat head and tail enables the device to maintain a stable pressure balance between different positions, and the reasonable layout of the main pressure balance pipe ensures the efficient operation of the entire system.

[0019] 5. Automatic control: The use of sensors and electric valves improves the automation level of control, reduces the need for manual intervention, and enhances the operation convenience of the system. Description of the Drawings

[0020] Figure 1 It is the front view structure diagram of the present dyeing overpressure control device.

[0021] Figure 2 It is the top view structure diagram of the present dyeing overpressure control device.

[0022] Figure 3This is the side view structural diagram of the dyeing overpressure control device.

[0023] In the figure, 1 is the dyeing vat; 1a is the machine head; 1b is the machine tail; 2 is the main pressure balance pipe; 3 is the vacuum breaking valve; 4 is the pressure increasing valve; 5 is the pressure sensor; 6 is the pressure discharging valve; 7 is the safety valve; 8 is the small-bore overpressure discharge valve; 9 is the pressure discharging pipe. Specific embodiments

[0024] The following are specific embodiments of the present invention and, in conjunction with the accompanying drawings, further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0025] Embodiment 1

[0026] As Figures 1 to 3 shown, this dyeing overpressure control device includes a dyeing vat 1. A main pressure balance pipe 2 is connected between the machine head 1a and the machine tail 1b of the dyeing vat 1. A pressure sensor 5 is connected to the main pressure balance pipe 2 through a first branch pipe. A safety valve 7 is connected to the main pressure balance pipe 2 through a branch port. A pressure increasing valve 4 is connected to the main pressure balance pipe 2 through a second branch pipe. A decompression component is also connected to the main pressure balance pipe 2.

[0027] The decompression component includes a pressure discharging valve 6, a small-bore overpressure discharge valve 8, and a pressure discharging pipe 9. The inlet of the pressure discharging valve 6 is connected to the main pressure balance pipe 2 through a third branch pipe on one side of the safety valve 7. The inlet of the small-bore overpressure discharge valve 8 is connected to the main pressure balance pipe 2 through a fourth branch pipe on the other side of the safety valve 7. The outlet of the pressure discharging valve 6 is connected to the pressure discharging pipe 9. The outlet of the small-bore overpressure discharge valve 8 is connected to the pressure discharging pipe 9.

[0028] The pressure discharging valve 6 is located in front of the safety valve 7, that is, close to the machine head 1a; the small-bore overpressure discharge valve 8 is located behind the safety valve 7, that is, close to the machine tail 1b. The outlet of the pressure discharging valve 6 is directly connected to the pressure discharging pipe 9. The outlet of the small-bore overpressure discharge valve 8 is connected to the pressure discharging pipe 9 through a secondary pipeline.

[0029] The machine head 1a of the dyeing vat 1 has an inclined and upwardly curved port, and a nozzle is arranged on the port. The machine tail 1b of the dyeing vat 1 is arranged slightly inclined. A first end interface is arranged on the inclined wall of the machine head 1a, and a tail end interface is arranged on the horizontal wall of the machine tail 1b. The front port of the main pressure balance pipe 2 is sealingly connected to the first end interface, and the rear port of the main pressure balance pipe 2 is sealingly connected to the tail end interface.

[0030] A vacuum breaking valve 3 is connected to the main pressure balance pipe 2 through a branch pipe. When it is necessary to eliminate the vacuum state inside the dyeing vat 1, the vacuum breaking valve 3 is opened to communicate with the outside, so that outside air enters the main pressure balance pipe 2 and the dyeing vat 1, thereby eliminating the vacuum state inside the dyeing vat 1.

[0031] A vacuum break valve 3, a pressure increasing valve 4, a pressure sensor 5, a pressure relief valve 6, a safety valve 7, and a small-diameter overpressure discharge valve 8 are sequentially arranged from the front end to the rear end of the main pressure balance pipe 2.

[0032] The pressure increasing valve 4, the pressure relief valve 6, and the small-diameter overpressure discharge valve 8 are all pneumatic Y-type valves.

[0033] The pressure sensor 5 is a high-precision pressure sensor 5, which can sense the minute pressure fluctuations in the dyeing vat 1, thereby improving the accuracy of pressure control.

[0034] The inlet of the pressure increasing valve 4 is connected to the external compressed air source pipeline, and the outlet of the pressure increasing valve 4 is connected to the second branch pipe.

[0035] Embodiment 2

[0036] Based on Embodiment 1, the difference in this embodiment lies in:

[0037] A dyeing device includes the above-mentioned dyeing overpressure control device.

[0038] The pressure control method of this dyeing device is as follows:

[0039] When the dyeing process is carried out in the dyeing vat 1, the internal pressure of the fuselage is detected in real time by the high-precision pressure sensor 5. If it is detected that the internal pressure of the dyeing vat 1 is lower than the pressure required for the dyeing process, the compressed air source pipeline is opened and the pressure increasing valve 4 is opened to pressurize the main pressure balance pipe 2 and the dyeing vat 1. During the normal process, when the temperature in the dyeing vat changes from the high-temperature and high-pressure state to a temperature lower than 85°C, the pressure relief valve 6 is opened and closed intermittently several times and then continuously discharges pressure until there is no pressure in the dyeing vat 1 to ensure safety and dyeing requirements.

[0040] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the defined scope. Although the present invention has been described in detail in the drawings and the foregoing description, such description is considered to be illustrative or exemplary rather than restrictive. It should be understood that within the scope of the following claims, those of ordinary skill in the art can make changes and modifications. Specifically, the present invention encompasses additional embodiments having any combination of features from the above different embodiments. With respect to the use of the expressions "generally" or "substantially", this patent application should be understood to disclose that the same fully meets these features and values, that is, without the foregoing being characterized as "generally" or "substantially".

[0041] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

Claims

1. A dyeing overpressure control device, comprising a dyeing vat, a main pressure balance pipe is communicated between the head and the tail of the dyeing vat, and it is characterized in that, A pressure sensor is connected to the main pressure balance pipe through a first branch pipe, a safety valve is connected to the main pressure balance pipe through a branch port, a pressurizing valve is connected to the main pressure balance pipe through a second branch pipe, and a pressure reducing assembly is also connected to the main pressure balance pipe.

2. The dyeing overpressure control device according to claim 1, characterized in that, The pressure reducing assembly includes a pressure discharging valve, a small-bore overpressure discharge valve and a pressure discharge pipe. The inlet of the pressure discharging valve is connected to the main pressure balance pipe through a third branch pipe on one side of the safety valve, and the inlet of the small-bore overpressure discharge valve is connected to the main pressure balance pipe through a fourth branch pipe on the other side of the safety valve. The outlet of the pressure discharging valve is connected to the pressure discharge pipe, and the outlet of the small-bore overpressure discharge valve is connected to the pressure discharge pipe.

3. The dyeing overpressure control device according to claim 2, wherein, The head of the dyeing vat has a port that slopes upwards, a nozzle is provided on the port, a first-end interface is provided on the inclined wall of the head, and a tail-end interface is provided on the horizontal wall of the tail.

4. The dyeing overpressure control device according to claim 3, characterized in that, The front port of the main pressure balance pipe is sealingly connected to the first-end interface, and the rear port of the main pressure balance pipe is sealingly connected to the tail-end interface.

5. The dyeing overpressure control device according to claim 4, wherein, A vacuum breaking valve is connected to the main pressure balance pipe through a branch pipe.

6. The dyeing overpressure control device according to claim 5, characterized in that, The vacuum breaking valve, the pressurizing valve, the pressure sensor, the pressure discharging valve, the safety valve and the small-bore overpressure discharge valve are arranged in sequence from the front end to the rear end of the main pressure balance pipe.

7. The dyeing overpressure control device according to claim 2, wherein The pressurizing valve, the pressure discharging valve and the small-bore overpressure discharge valve are all pneumatic Y-type valves.

8. The dyeing overpressure control device according to claim 1, characterized in that, The inlet of the pressurizing valve is connected to an external compressed air source pipeline, and the outlet of the pressurizing valve is connected to the second branch pipe.

9. A dyeing device, characterized in that, It includes a dyeing overpressure control device according to any one of claims 1 to 8.

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