CN214572749U

CN214572749U - Exhaust heat release device with ejector

Info

Publication number: CN214572749U
Application number: CN202023329240.6U
Authority: CN
Inventors: 李爱华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-02
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to an exhaust heat release device with ejector, it has solved the technical problem of the high-temperature high-pressure water container in the high-efficient retrieval and utilization of heat energy of rapid cooling step-down in-process. The high-temperature dye vat heating device is provided with an exhaust heat release device, the exhaust heat release device is communicated with the high-temperature dye vat through a water outlet pipeline and a water return pipeline, a circulating water pump is arranged on the water return pipeline, the water outlet pipeline is provided with a heat exchanger, the lower end of the exhaust heat release device is provided with an ejector, a nozzle of the ejector is communicated with an outlet of the circulating water pump, an outlet of the ejector is communicated with an inlet of the heat exchanger, an ejector outer jacket is arranged on the outer side of the ejector, an outlet of the circulating water pump is communicated with the ejector outer jacket, a water inlet valve is arranged between the outlet of the circulating water pump and the ejector outer jacket, the upper end of the ejector is provided with a phase change region, and the upper end of the phase change region is provided with a water vapor outlet. The utility model discloses can be applied to and require not produce boiling production facility and technology at the water of cooling step-down in-process container.

Description

Exhaust heat release device with ejector

Technical Field

The utility model relates to a textile printing and dyeing field relates to the high temperature dye vat of printing and dyeing trade cooling decompression under the high temperature state, and especially the process requires the jar that the water in the high temperature dye vat can not produce the boiling in the cooling process dyes equipment and other high temperature high pressure water container have the field of relevant requirement.

Background

In the high-temperature dye vat process in the printing and dyeing industry, the temperature needs to be reduced from about 135 ℃ to below 100 ℃, otherwise, the vat cannot be opened, and the water in the dye vat cannot be boiled in the cooling process, otherwise, the quality of the dyed cloth is influenced. The existing method generally adopts a cooling water heat exchange cooling and pressure reduction mode, which not only needs a large amount of cooling water, but also has low recycling value because the heat energy of the cooling water is excessive, and a plurality of enterprises can only release heat in the air through a cooling tower, thereby causing serious waste of heat energy and influencing atmospheric environment, and simultaneously causing overlong time for cooling and pressure reduction because the heat exchange efficiency is not high. The cooling water volume is large, the temperature is high, the heat energy waste is serious, and the problems which need to be solved universally in the textile printing and dyeing industry are solved urgently.

Disclosure of Invention

The utility model discloses a solve the current high temperature dye vat of printing and dyeing industry can not high-efficient retrieval and utilization at cooling step-down in-process heat energy, heat transfer cooling step-down inefficiency, extravagant heat energy and water resource to and satisfy the technical requirement that the water in the cooling in-process dye vat does not produce the boiling, provide a high temperature dye vat at cooling step-down in-process, can realize energy-conservation increase, water conservation reduces discharging, improve production efficiency, can realize again that the water in the high temperature dye vat does not produce the exothermic heat sink of high temperature steam discharging of boiling.

The utility model provides an exhaust heat release equipment with ejector, be equipped with the heat release equipment of exhaust steam, the heat release equipment of exhaust steam passes through outlet pipe way and return water pipeline and high temperature dye vat intercommunication, be equipped with circulating water pump on the return water pipeline, outlet pipe way is equipped with the heat exchanger, the heat release equipment lower extreme of exhaust steam is equipped with the ejector, the nozzle and the circulating water pump export intercommunication of ejector, the export and the heat exchanger entry intercommunication of ejector, the ejector outside is equipped with the ejector overcoat cover, the circulating water pump export still with the ejector overcoat cover intercommunication, be equipped with the inlet valve between circulating water pump export and the ejector overcoat cover, the ejector upper end is equipped with the phase transition district, the phase transition district upper end is equipped with the steam outlet.

Preferably, two or more groups of steam discharge valves are arranged in parallel at the steam outlet.

Preferably, a water outlet pump is further arranged between the inlet of the heat exchanger and the exhaust steam heat release device.

Preferably, the nozzle of the ejector is provided with external threads, the steam exhaust heat release device is provided with a thread adjusting hole, and the position of the nozzle in the ejector is adjusted through threaded connection with the steam exhaust heat release device.

Preferably, a steam-water separator for separating moisture in the steam is arranged between the phase change area and the steam outlet.

Preferably, the exhaust heat release device is also provided with a liquid level meter, and the liquid level meter is a magnetic turning plate type liquid level meter.

The utility model discloses beneficial effect: the utility model discloses can replace the current generally adopted traditional mode of giving pressure vessel cooling step-down such as high temperature dye vat with cooling water, through the exothermic mode of high temperature steam extraction, make pressure vessel can realize again that the water in the pressure vessel does not produce the technological requirement of boiling at cooling step-down in-process in the cooling step-down when cooling step-down. The utility model discloses be equipped with an ejector in inside, the low-temperature liquid after the phase transition is discharged fast realizes quick cooling step-down.

Compare in cooling water cooling mode, have following beneficial effect:

1. energy saving and efficiency improvement. Compared with high-temperature hot water, the high-temperature steam has high recycling value. For example, the temperature of the 135 ℃ high-temperature dye vat is reduced to 90 ℃ through heat release of exhaust steam, the exhaust steam is converted into low-pressure steam through pressurization and then is reused in the production process, and the steam cost can be saved by 30%.

2. Saving water and protecting environment. Compared with cooling water, the cooling device can save a large amount of water resources, thoroughly solve the problem of overhigh and excessive cooling water temperature, reduce the aerial emission of water vapor and be beneficial to protecting the ecological environment.

3. Reducing emission and cost. Compared with cooling water, the high-temperature exhaust steam takes away water, so that the amount of sewage in the high-temperature dye vat can be reduced, and the sewage treatment cost is saved. More importantly, when the pollution discharge index of an enterprise is saturated, the production capacity of the enterprise can be amplified through emission reduction. For example, the temperature of the 135 ℃ high-temperature dye vat is reduced to 90 ℃ through heat release of exhaust steam, and the sewage discharge amount can be reduced by 10%.

4. Increase the yield and speed. Compare in the cooling water cooling, the heat release rate of high temperature exhaust is faster, can reduce the time of cooling by a wide margin, improves production efficiency.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

Description of the symbols of the drawings:

1. a high-temperature dye vat; 2. a steam discharging and heat releasing device; 21. a spiral separator; 22. a water vapor outlet; 221. a first steam discharge valve; 222. a second steam discharge valve; 23. a phase change region; 24. an ejector; 241. an ejector outer jacket; 25. a threaded adjustment hole; 26. a nozzle; 3. a water return pipeline; 31. a backwater water pump; 32. a water inlet valve; 4. a water outlet pipeline; 41. a heat exchanger; 42. and (4) a water outlet pump.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, so that those skilled in the art can easily implement the present invention.

Example 1: as shown in figure 1, the utility model is provided with a high temperature dye vat 1, a steam exhaust heat release device 2, and the high temperature dye vat 1 is communicated with the steam exhaust heat release device 2 through a water return pipeline 3 and a water outlet pipeline 4.

The lower end of the exhaust steam heat release device 2 is provided with an ejector 24, a nozzle 26 of the ejector 24 is communicated with a water return pipeline 3, an ejector outer jacket 241 is arranged on the outer side of the ejector 24, high-temperature liquid in the high-temperature dye vat 1 flows into the ejector 24 through the water return pipeline 3 and is subjected to phase change with the ejector outer jacket 241, the boiling heat release and cooling are realized, low-temperature water after heat release flows to the outer side of the ejector outer jacket 241, the low-temperature water enters a jet device 24 suction chamber from the bottom of the exhaust steam heat release device 2, and the low-temperature water enters the high-temperature dye vat 1 through a jet device 24 and a water outlet pipeline 4. The upper end of the ejector 24 is provided with a phase change region 23, and high-temperature liquid in an outer jacket 241 of the ejector changes phase in the phase change region 23, boils to release heat and cool. The upper top end of the steam discharging and heat releasing device 2 is provided with a steam outlet 22, when the steam discharging and heat releasing device 2 discharges air from the steam outlet 22, high-temperature liquid is changed into phase in a phase change area 23 due to pressure change, the liquid is boiled quickly and changed into steam, a spiral separator 21 for separating the liquid from the steam is arranged in the phase change area 23 and the steam outlet 22 for separating the liquid in the steam, wherein the steam outlet 22 is provided with a first steam discharge valve 221 and a second steam discharge valve 222 in parallel and respectively used for discharging steam with different pressures.

The water return pipeline 3 is provided with a water return pump 31 and a water inlet valve 32, the water inlet valve 32 is arranged in parallel with the nozzle 26 and is connected to a water outlet of the water return pump 31, the other end of the water inlet valve 32 is communicated with an ejector outer jacket 241, the amount of liquid entering the ejector outer jacket 241 is adjusted by the water inlet valve 32, the pressure value in the high-temperature dye vat 1 is controlled by the liquid in the ejector outer jacket 241 through self weight, the liquid in the high-temperature dye vat 1 is kept not to boil, a part of high-temperature liquid in the high-temperature dye vat 1 enters the ejector outer jacket 241 through the water return pump 31 to be discharged, then flows into the bottom of the steam discharge heat release device 2 to be changed into low-temperature liquid, the other part of high-temperature liquid enters the ejector 24 through the water return pump 31, the low-temperature liquid at the bottom of the steam discharge heat release device 2 is taken away by the high-temperature liquid entering the ejector 24, and flows out of the steam discharge heat release device 2 to enter the water outlet pipeline 4. The return water pump 31 is a circulating water pump.

The water outlet pipeline 4 is provided with a heat exchanger 41 and a water outlet pump 42, the water outlet pump 42 and the water outlet pipe of the ejector 24 are arranged at the water inlet of the heat exchanger 41 in parallel, and the low-temperature liquid discharged by the steam discharging and heat releasing device 2 enters the heat exchanger 41 through the ejector and/or the water outlet pump 42 and then flows into the high-temperature dye vat 1. The water outlet pump 42 is used for regulating the liquid in the steam exhaust heat release device 2, and when the liquid discharged by the ejector 24 is less than the liquid flowing into the water inlet valve 32, the liquid amount in the steam exhaust heat release device 2 is controlled by starting the water outlet pump 42.

The nozzle 26 height-adjustable of ejector 24, nozzle 26 lower extreme and 3 hookup locations of return water pipeline are equipped with the external screw thread, and the 2 lower extremes of the heat release equipment of steam extraction are equipped with screw thread regulation hole 25, and return water pipeline 3 adopts threaded connection with the heat release equipment 2 of steam extraction, can adjust the height of nozzle 26 at 24 suction chambers of ejector through threaded connection, realizes the regulation of efflux.

The exhaust heat release device 2 is also provided with a liquid level meter which is a magnetic turning plate type liquid level meter, and the liquid level height is automatically adjusted and controlled through the electric connection of the magnetic turning plate type liquid level meter and the devices such as the return water pump 31, the water inlet valve 32, the water outlet water pump 42, the first steam discharge valve 331, the second steam discharge valve 222 and the like.

Example 2: as shown in fig. 2, it is another embodiment of the present invention, the difference of the rest embodiments 1 lies in the arrangement direction of the ejector 24 inside the exhaust heat releasing device 2, in this embodiment, the ejector 24 is horizontally arranged at the bottom of the exhaust heat releasing device 2, the thread adjusting hole 25 is arranged on the side wall of the exhaust heat releasing device 2, the water return pipeline 3 enters the bottom of the ejector outer jacket 241 from the top of the ejector outer jacket 241, the liquid in the ejector outer jacket 241 can control the pressure value in the high temperature dye vat 1 through the self weight of the liquid, and the liquid in the high temperature dye vat 1 is kept from boiling.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, as various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the scope defined by the claims of the present invention shall be within the protection scope of the present invention.

Claims

1. The utility model provides an exhaust heat release device with ejector, characterized by is equipped with the heat release device of exhaust steam, the heat release device of exhaust steam passes through outlet pipe way and return water pipeline and high temperature dye vat intercommunication, be equipped with circulating water pump on the return water pipeline, outlet pipe way is equipped with the heat exchanger, the heat release device lower extreme of exhaust steam is equipped with the ejector, the nozzle of ejector with circulating water pump export intercommunication, the export of ejector with the heat exchanger entry intercommunication, the ejector outside is equipped with the ejector jacket, the circulating water pump export still with ejector jacket intercommunication, the circulating water pump export with be equipped with the water inlet valve between the ejector jacket, the ejector upper end is equipped with the phase transition district, the phase transition district upper end is equipped with the steam outlet.

2. The exhaust gas heat-releasing device with ejector according to claim 1, characterized in that the water vapor outlet is provided with two or more sets of vapor discharge valves in parallel.

3. The exhaust heat release device with the ejector according to claim 1, characterized in that a water outlet pump is further arranged between the heat exchanger inlet and the exhaust heat release device.

4. The exhaust gas heat release device with ejector according to claim 1, characterized in that the nozzle of the ejector is provided with an external thread, the exhaust gas heat release device is provided with a thread adjusting hole, and the nozzle adjusts the position of the nozzle in the ejector through a threaded connection with the exhaust gas heat release device.

5. The exhaust gas heat-releasing device with the ejector according to any one of claims 1 to 4, wherein a steam-water separator for separating moisture in steam is provided between the phase change region and the steam outlet.

6. The exhaust heat release device with the ejector according to claim 5, characterized in that the exhaust heat release device is further provided with a liquid level meter, and the liquid level meter is a magnetic turning plate type liquid level meter.