Air conditioning unit for weaving workshop

Abstract

The utility model belongs to the field of industrial air conditioners, and particularly relates to an air conditioning unit for a weaving workshop, which comprises a shell, and the interior of the shell is sequentially divided into a mixed air section and a primary spraying section along the air flowing direction; the first-stage spraying section is provided with a water tank, a water baffle, a spraying water pump, a spraying pipe, nozzles, a filter, a sewage pool, a high-pressure water pump and a filter press, an inlet of the spraying water pump is connected with the water tank, an outlet of the spraying water pump is connected with the spraying pipe, the nozzles are installed on the spraying pipe, the filter is arranged on a pipeline between the spraying water pump and the nozzles, and the filter is connected with the sewage pool. A sewage outlet of the filter is sequentially connected to a sewage pool, a high-pressure water pump and a filter press through a pipeline. Slurry dust and cotton fibers in return air can be captured in time through spraying and washing and fall into the water tank, impurities in the water tank are filtered through the backwashing filter, solid-liquid separation of waste water is achieved through the filter press, and it is ensured that the air conditioning unit can send out clean air meeting the production requirement.

Description

Technical Field

[0001] The utility model belongs to the field of industrial air conditioning, and in particular relates to an air conditioning unit for a weaving workshop. Background Art

[0002] Sizing is the process of applying sizing to warp yarns to improve their weavability. Commonly used main sizing agents include starch, glue, carboxymethyl cellulose, polyvinyl alcohol, acrylic copolymers, water-soluble polyesters, etc. In a weaving workshop, when sizing is used for weaving, the warp and weft yarns are interwoven and rubbed, which easily produces sizing dust and cotton wool. The workshop return air generally uses a disc filter. The sizing is captured and gathered by the filter screen of the disc filter, and then washed away by a rotating suction nozzle. Due to the particularity of sizing dust, which is different from the dust in ordinary workshops, the humidity in the weaving workshop is maintained at 75-80%. Sizing dust easily absorbs moisture and becomes sticky, and will stick to the filter screen of the disc filter. Although a point-suction filter is used, it is still difficult to completely remove it, resulting in filter blockage. In addition, the disc filter does not handle sizing dust and cotton wool thoroughly, affecting the air quality in the workshop. Utility Model Content

[0003] The technical problem to be solved by the utility model is that pulp dust and cotton wool in a cotton spinning workshop are difficult to remove in the prior art, and an air conditioning unit suitable for a weaving workshop is provided.

[0004] In order to solve the problems in the prior art, the utility model specifically adopts the following technical solutions: an air conditioning unit for a weaving workshop, comprising a shell, wherein the shell is divided into a mixed air section and a first-level spray section in sequence along the air flow direction; in the mixed air section, a fresh air regulating valve and a return air regulating valve are arranged on the shell; in the first-level spray section, a water trough, a water baffle, a spray water pump, a spray pipe, a nozzle, a filter, a sewage pool, a high-pressure water pump, and a filter press are arranged, the inlet of the spray water pump is connected to the water trough, and the outlet is connected to the spray pipe, and a plurality of nozzles are installed on the spray pipe, and the spraying area of ​​the nozzle can completely cover a complete spatial area in the shell, the water trough is located below the first-level spray section, and a water baffle is arranged at a downstream position relative to the wind direction of the spray pipe, a filter is arranged on the pipeline between the spray water pump and the nozzle, and the sewage outlet of the filter is connected to the sewage pool through a pipeline, the sewage pool is connected to the high-pressure water pump, and the outlet pipeline of the high-pressure water pump is connected to the filter press.

[0005] Furthermore, the high-pressure water pump adopts a pneumatic diaphragm pump or a screw pump to provide high pressure.

[0006] Furthermore, the nozzle is oriented in the opposite direction to the wind direction, thereby achieving sufficient mixing of water droplets and air, and improving the capture effect of cotton wool and pulp dust.

[0007] Furthermore, the water tank is provided with a float valve and a water supply pipe, and water is automatically supplied according to the liquid level.

[0008] Furthermore, the filter is a backwash filter with high filtering accuracy and can automatically backwash according to the pressure difference.

[0009] Furthermore, the fresh air regulating valve and the return air regulating valve are controlled through software and hardware linkage to achieve automatic control of air volume.

[0010] Furthermore, the water retaining plate is composed of a plurality of corrugated plates arranged in parallel, thereby improving the water retaining effect.

[0011] Furthermore, a secondary spray section for cooling and controlling humidity is provided downstream of the primary spray section, which can adjust the temperature and humidity according to the working conditions.

[0012] Furthermore, an axial flow fan is provided downstream of the secondary spray section to provide suction for the system.

[0013] Beneficial effects of the utility model:

[0014] 1. Compared with conventional air-conditioning units, the utility model cancels the disc filter, avoids the problem of disc filter clogging, adopts a first-level spray section to spray and wash the return air, captures the slurry dust and cotton wool in the return air, and captures small droplets in the air through a water baffle to prevent impurities from entering the subsequent processing section of the air conditioner, ensuring that the air-conditioning unit can stably provide clean air-conditioning air.

[0015] 2. The utility model installs a backwash filter on the pipeline between the spray water pump and the nozzle, which can filter and flush away the dust and cotton wool in the circulating water passing through the backwash filter in time, ensuring that the nozzle will not be blocked, ensuring that the water tank is maintained in a relatively clean state, and ensuring the long-term and effective operation of the equipment.

[0016] 3. The utility model is provided with a sewage pool, a high-pressure water pump and a filter press. The collected sewage can be transported to the filter press through the high-pressure water pump, so that the sewage mixed with cotton wool and slurry dust can be separated into solid and liquid. The cotton wool and slurry dust become solid waste in the form of filter cakes, and the filtrate becomes liquid waste, meeting the requirements of green emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a top view of an air conditioning unit for a weaving workshop according to the utility model;

[0018] Figure 2 This is a front view of an air conditioning unit for a weaving workshop according to the utility model.

[0019] In the figure:

[0020] 1 mixed air section; 101 fresh air regulating valve; 102 return air regulating valve;

[0021] 2 first-stage spray section; 201 water tank; 202 water baffle; 203 spray water pump; 204 spray pipe; 205 nozzle; 206 filter; 207 sewage tank; 208 high-pressure water pump; 209 filter press; 210 float valve; 212 water supply pipeline;

[0022] 3. Secondary spray section;

[0023] 4 axial flow fans. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-2The air conditioning unit for a weaving workshop shown in the figure includes a shell, which is made of magnesium sulfate A1 fireproof color steel sandwich panel with a thickness of 50mm to ensure sufficient thermal insulation performance. The shell is divided into a mixed air section 1 and a first-level spray section 2 along the air flow direction; in the mixed air section 1, a fresh air regulating valve 101 and a return air regulating valve 102 are arranged on the shell, and the fresh air regulating valve 101 and the return air regulating valve 102 are controlled by software and hardware linkage; in the first-level spray section 2, a water tank 201 is arranged , a water baffle 202, a spray water pump 203, a spray pipe 204, a nozzle 205, a filter 206, a sewage tank 207, a high-pressure water pump 208, and a filter press 209. The inlet of the spray water pump 203 is connected to the water tank 201, and the outlet is connected to the spray pipe 204. A plurality of nozzles 205 are installed on the spray pipe 204. The installation angle of the nozzle 205 can be various, and it can spray from top to bottom, against the wind, or with the wind. In this embodiment, against the wind spraying is preferably adopted. The spray pipe 204 is divided into a spray main pipe and a spray branch pipe. The spray branch pipes are evenly distributed on the same vertical plane. A number of nozzles 205 are evenly distributed on the plane. The nozzles 205 are oriented in the opposite direction to the wind direction, which can increase the collision effect between air and water droplets. The spraying area of ​​the nozzles 205 can completely cover the cross section of the shell. The return air carries slurry dust and cotton wool. At the first-level spray section 2, it collides violently with the water droplets sprayed from the nozzles 205, and the slurry dust and cotton wool are soaked by the water droplets. , and the small water droplets collide with each other, become large water droplets, gradually fall down, and fall into the water tank 201 below the first-level spray section 2. A water baffle 202 is provided at the downstream position of the wind direction relative to the spray pipe 204. The water droplets that do not fall into the pool, when passing through the water baffle 202, the water baffle 202 is composed of a number of parallel arranged corrugated plates. The air mixed with the water droplets is deflected and collided for many times, and is collected by the water baffle 202, and falls downward into the water tank 201, completing the capture of slurry dust and cotton wool.

[0026] In order to ensure that impurities do not clog the nozzle 205, a filter 206 is provided on the pipe between the spray water pump 203 and the nozzle 205, and the sewage outlet of the filter 206 is connected to the sewage pool 207 through a pipe, and the sewage pool 207 is connected to a high-pressure water pump 208, and the outlet pipe of the high-pressure water pump 208 is connected to a filter press 209. In this embodiment, the filter 206 adopts a backwash filter 206, and the water in the water tank 201 enters from the inlet, and the water to be treated is filtered through the filter screen and flows out from the outlet. The fine particles and suspended matter in the water are deposited near the sewage outlet due to inertia. When the fine particles and suspended matter in the water intercepted by the filter screen reach a certain amount, the valve on the sewage outlet is opened, that is, the impurities adhering to the part of the filter collection section are washed by the water flow until the discharged water is clear. Then close the valve on the sewage outlet to enter the normal working state. The filter begins to prepare for the next flushing cycle. Automatic backwashing is achieved through pressure difference, and dust and cotton wool in the circulating water passing through the backwash filter 206 are filtered and washed away in time, ensuring that the nozzle 205 will not be blocked and ensuring that the water tank 201 is maintained in a relatively clean state.

[0027] The backwashed sewage flows into the sewage pool 207, which is equipped with a liquid level gauge. When the liquid level of the sewage pool 207 reaches the set height, the high-pressure water pump 208 is turned on. Before that, the filter press 209 presses the filter plate through the hydraulic system or manual operation to form a sealed filter chamber. This step ensures the efficiency of solid-liquid separation and avoids liquid leakage during the filtration process. The high-pressure water pump 208 sends the sewage into the filter chamber through the feed hole of the filter press 209, and uses the pressure difference to make the liquid pass through the filter cloth, while the solid particles (slurry dust, cotton wool) are trapped on the filter cloth to form a filter cake. After the filtration is completed, the aqueous solution or compressed air can be introduced through the washing pump and the washing valve to wash the filter cake to recover the effective ingredients or further dehydrate. In order to further remove the moisture in the filter cake, compressed air can be introduced into the filter cake, and the moisture in the filter cake can be further removed by the squeezing effect of the compressed air. After the filtration is completed, the filter plate is loosened by operating the hydraulic system or manual operation to remove the filter cake.

[0028] In practical applications, the high-pressure water pump 208 adopts a pneumatic diaphragm pump or a screw pump with a head of 60-70m.

[0029] In actual application, a float valve 210 and a water supply pipe 212 are provided on the water tank 201. When the air passes through the primary spray section 2, the humidity increases, and some fine water droplets are entrained, and some water is lost during backwashing. Therefore, the liquid level in the water tank 201 will gradually decrease as the equipment runs, and the float of the float valve 210 will also gradually decrease. When it is below a certain height, the float valve 210 opens, and the water supply pipe 212 continuously supplies water to the water tank 201 until the float valve 210 is closed, ensuring that the liquid level in the water tank 201 is at an appropriate height.

[0030] In actual application, a secondary spray section 3 for cooling and controlling humidity is provided downstream of the primary spray section 2. The secondary spray section 3 is provided with two groups of spray systems, one of which uses a water pump driven by a fixed frequency motor, and the other uses a water pump driven by a variable frequency motor. The spray volume can be adjusted according to the air humidity. A water tank is provided below, and a cold water pipe and a normal temperature water pipe are installed on the water tank. The water temperature in the water tank is adjusted according to the outlet air temperature, so that the temperature and humidity can be adjusted. In this solution, the secondary spray section 3 for cooling and controlling humidity and the primary spray section 2 for washing, dust removal and lint removal are completely separated and operated separately, which can prevent slurry dust and lint from entering the secondary spray section 3, avoid polluting the circulating water of the secondary spray section 3, ensure the normal operation of the secondary spray section 3, and ensure that the air conditioning unit can stably provide clean air conditioning air.

[0031] In actual applications, an axial flow fan is provided downstream of the secondary spray section to provide suction for the entire equipment.

[0032] To sum up, the utility model, an air-conditioning unit for a weaving workshop can capture pulp dust and cotton wool in the return air in time through spray washing, and drop them into the water tank. The impurities in the water tank are filtered through the backwash filter, and the waste water is separated into solid and liquid through the filter press, ensuring that the air-conditioning unit can deliver clean air that meets production needs, so as to ensure the production of high-quality products that meet market demand and improve the economic benefits of the enterprise.

[0033] The above shows and describes the basic principles, main features and advantages of the utility model. The technicians in this industry should understand that the above implementation is only to illustrate the technical concept and characteristics of the utility model, and its purpose is to enable people familiar with this technology to understand the content of the utility model and implement it, and it cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An air conditioning unit for a weaving workshop, characterized in that: The invention comprises a shell, wherein the shell is divided into a mixing air section (1) and a first-level spraying section (2) in sequence along the air flow direction; in the mixing air section (1), a fresh air regulating valve (101) and a return air regulating valve (102) are arranged on the shell; in the first-level spraying section (2), a water tank (201), a water baffle (202), a spraying water pump (203), a spraying pipe (204), a nozzle (205), a filter (206), a sewage tank (207), a high-pressure water pump (208), and a filter press (209) are arranged; the inlet of the spraying water pump (203) is connected to the water tank (201), and the outlet is connected to the spraying pipe (204); the spraying pipe (204) A plurality of nozzles (205) are installed on the housing, and the spraying area of ​​the nozzles (205) can completely cover a complete spatial area in the housing. The water tank (201) is located below the first-level spray section (2), and a water baffle (202) is provided at a downstream position relative to the spray pipe (204) in the wind direction. A filter (206) is provided on the pipeline between the spray water pump (203) and the nozzles (205), and the sewage outlet of the filter (206) is connected to a sewage pool (207) through a pipeline. The sewage pool (207) is connected to a high-pressure water pump (208), and the outlet pipeline of the high-pressure water pump (208) is connected to a filter press (209); A secondary spray section (3) for cooling and controlling humidity is provided downstream of the primary spray section (2). The secondary spray section (3) is provided with two groups of spray systems, one of which uses a water pump driven by a fixed frequency motor, and the other uses a water pump driven by a variable frequency motor. A water tank is provided below, and a cold water pipe and a normal temperature water pipe are installed on the water tank. The secondary spray section (3) for cooling and controlling humidity and the primary spray section (2) for washing, dust removal and lint removal are completely separated and operated independently.

2. The air conditioning unit for a weaving workshop according to claim 1, characterized in that: The high-pressure water pump (208) is a pneumatic diaphragm pump or a screw pump.

3. The air conditioning unit for a weaving workshop according to claim 1, characterized in that: The nozzle (205) is oriented in the opposite direction to the wind direction.

4. The air conditioning unit for a weaving workshop according to claim 1, characterized in that: The water tank (201) is provided with a float valve (210) and a water supply pipeline (211).

5. The air conditioning unit for a weaving workshop according to claim 1, characterized in that: The filter (206) is a backwash filter (206).

6. The air conditioning unit for a weaving workshop according to claim 1, characterized in that: The fresh air regulating valve (101) and the return air regulating valve (102) are controlled through software and hardware linkage.

7. The air conditioning unit for a weaving workshop according to claim 1, characterized in that: The water retaining plate (202) is composed of a plurality of corrugated plates arranged in parallel.

8. The air conditioning unit for a weaving workshop according to claim 1, characterized in that: An axial flow fan (4) is provided downstream of the secondary spray section (3).

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