Ammonia dehydrating and drying device

Abstract

The utility model relates to the technical field of ammonia dehydrating and drying, and discloses an ammonia dehydrating and drying device which comprises a drying mechanism, a pressure reducing mechanism and a main body mechanism, the drying mechanism is located on the upper surface of the main body mechanism, the pressure reducing mechanism is located on the outer wall of the drying mechanism, and the drying mechanism comprises a first dryer. The first dryer is fixedly connected with a main body chassis, and the upper surface of the main body chassis is fixedly connected with a second dryer. The upper surface of the main body chassis is fixedly connected with the first dryer and the second dryer, the two dryers are arranged so that uninterrupted work can be conveniently carried out, and the first dryer and the second dryer are arranged to be fully automatically switched through the PLC; and when the first dryer works, the 3A molecular sieve in the second dryer is cooled so as to be reused.

Description

Technical Field

[0001] The utility model relates to the technical field of ammonia dehydration and drying, in particular to an ammonia dehydration and drying device. Background Art

[0002] Ammonia, an inorganic compound, is a colorless gas with a strong, pungent odor. Its chemical formula is NH3, its molecular weight is 17.031, its density is 0.7710 g / L, and its relative density is 0.5971 (air = 1.00). Ammonia can turn moistened red litmus paper blue and produces small amounts of hydroxide ions in water, making it weakly alkaline. It liquefies under pressure at room temperature (critical temperature 132.4°C, critical pressure 11.2 MPa, or 112.2 atmospheres). It has a boiling point of -33.5°C and easily solidifies into a snow-like solid. Its melting point is -77.75°C. It is soluble in water, ethanol, and ether. At high temperatures, it decomposes into nitrogen and hydrogen, exhibiting a reducing effect. In the presence of a catalyst, ammonia can be oxidized to nitric oxide. Ammonia is commonly used in the production of liquid nitrogen, ammonia water, nitric acid, ammonium salts, and amines.

[0003] Since ammonia is highly soluble in water, the ammonia produced is mostly very humid, which is not conducive to the purity of the drug and thus causes certain troubles to users. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an ammonia dehydration and drying device.

[0005] The utility model adopts the following technical solutions: an ammonia dehydration drying device, comprising a drying mechanism, a pressure reducing mechanism and a main body mechanism, wherein the drying mechanism is located on the upper surface of the main body mechanism, and the pressure reducing mechanism is located on the outer wall of the drying mechanism;

[0006] The drying mechanism includes a first dryer, which is fixedly connected to the main chassis. The upper surface of the main chassis is fixedly connected to the second dryer. The upper surface of the first dryer is fixedly connected to a sealing flange. The sealing flange is fixedly connected to a fixing nut. The inner wall of the fixing nut is threadedly connected to a fixing screw.

[0007] Through the above technical solution, the upper surface of the main chassis is fixedly connected with the first dryer and the second dryer. By setting up two dryers, uninterrupted operation can be performed. The first dryer and the second dryer are set to be switched automatically through PLC. When the first dryer is working, the 3A molecular sieve in the second dryer is cooled for reuse. A fixing nut and a fixing screw are set to fix the upper and lower sealing flanges, thereby sealing the entire dryer and increasing the overall sealing performance.

[0008] As a further improvement of the above solution, a sealing tube is fixedly connected to the outer wall of the first dryer, an inlet solenoid valve is clamped to the outer wall of the sealing tube, and a stainless steel pneumatic valve is clamped to the outer wall of the sealing tube.

[0009] Through the above technical solution, the outer wall of the sealing tube is clamped with the inlet solenoid valve and the stainless steel pneumatic valve, and the on-off of the entire airflow circuit is controlled by setting the inlet solenoid valve and the stainless steel pneumatic valve, thereby increasing the automation of the entire mechanical equipment.

[0010] As a further improvement of the above solution, a heating tube is fixedly connected to the inner wall of the second dryer, and a 3A molecular sieve is fixedly connected to the outer wall of the heating tube.

[0011] Through the above technical solution, the second dryer is fixedly connected to the heating tube, and the heating tube is fixedly connected to the 3A molecular sieve. After being heated, the ammonia is adsorbed by the 3A molecular sieve in the second dryer, thereby obtaining pure ammonia with a dew point ≤-50°C.

[0012] As a further improvement of the above solution, the pressure reducing mechanism includes a pilot valve, the lower surface of the pilot valve is fixedly connected to a main valve, the lower surface of the main valve is fixedly connected to a steam trap, the inner wall of the main valve is slidably connected to a filter housing, and the inner wall of the filter housing is clamped with a filter disc.

[0013] Through the above technical solution, the pilot valve is fixedly connected to the main valve, and the main valve is fixedly connected to the steam trap. The pilot valve is set to slow down the pressure of the entering ammonia gas, and then the ammonia gas is transferred to the sealing tube by the main valve for subsequent drying and purification. The main valve is set to be fixedly connected to the steam trap. In the process of reducing the pressure of the ammonia gas, the ammonia gas contacts the outer wall of the valve body to liquefy the ammonia gas, and the liquefied liquid is channeled through the steam trap. A filter housing is provided to clamp the filter disc, and the ammonia gas to be dried is filtered through the filter disc. The filter housing is slidably connected to the main valve, thereby increasing the convenience of replacing the filter disc in the later stage.

[0014] As a further improvement of the above solution, the inner wall of the pilot valve is slidably connected to an extrusion plate, the lower surface of the extrusion plate is fixedly connected to a spring, and the inner wall of the extrusion plate is threadedly connected to an adjusting bolt.

[0015] Through the above technical solution, the pilot valve is slidingly connected to the extrusion plate, the extrusion plate is fixedly connected to the spring, and the extrusion plate is threadedly connected to the adjusting bolt. By rotating the adjusting bolt to squeeze the extrusion plate, the extrusion plate compresses the spring, thereby adjusting the flow rate of the pilot valve to change the overall air pressure.

[0016] As a further improvement of the above solution, the main body mechanism includes a main chassis, the upper surface of the main chassis is fixedly connected to a PLC controller, the outer wall of the PLC controller is fixedly connected to a manual adjustment switch, and the lower surface of the main chassis is fixedly connected to a main base.

[0017] Through the above technical solution, the main chassis is fixedly connected to the PLC controller, the PLC controller is fixedly connected to the manual adjustment switch, the working mode during the ammonia purification process is adjusted by setting the manual adjustment switch, and the main chassis is fixedly connected to the main base, thereby improving the overall stability.

[0018] As a further improvement of the above solution, a first dryer is fixedly connected to the upper surface of the main chassis, an alarm light is fixedly connected to the upper surface of the first dryer, a sealing tube is fixedly connected to the outer wall of the first dryer, and a discharge port is fixedly connected to the outer wall of the sealing tube.

[0019] Through the above technical solution, the main chassis is fixedly connected to the second dryer, and the second dryer is fixedly connected to the warning light. When the dryer is overheated, the warning light lights up to transmit a warning signal.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The utility model is provided with a first dryer and a second dryer fixedly connected to the upper surface of a main chassis. The two dryers are provided so as to enable uninterrupted operation. The first dryer and the second dryer are provided to be fully automatically switched through a PLC. The second dryer is provided to be fixedly connected to a heating tube, which is fixedly connected to a 3A molecular sieve. After being heated, ammonia is adsorbed by the 3A molecular sieve in the second dryer, thereby obtaining pure ammonia with a dew point of ≤-50°C. When the first dryer is working, the 3A molecular sieve in the second dryer is cooled for reuse. A fixing nut and a fixing screw are provided to fix the upper and lower sealing flanges, thereby sealing the entire dryer and increasing the overall sealing performance. The outer wall of the sealing tube is provided to clamp an inlet solenoid valve and a stainless steel pneumatic valve. The inlet solenoid valve and the stainless steel pneumatic valve are provided to control the on-off of the entire airflow circuit, thereby increasing the automation of the entire mechanical equipment.

[0022] The utility model arranges a pilot valve fixedly connected to the main valve, the main valve is fixedly connected to the steam trap, and the pressure of the entering ammonia is reduced by arranging the pilot valve, and the ammonia is then transferred to the sealing pipe by the main valve, so as to perform subsequent drying and purification. The main valve is arranged to be fixedly connected to the steam trap, and in the process of reducing the pressure of the ammonia, the ammonia contacts the outer wall of the valve body to liquefy the ammonia, so that the liquefied liquid is drained through the steam trap, and the pilot valve is arranged to be slidably connected to an extrusion piece, the extrusion piece is fixedly connected to a spring, and the extrusion piece is threadedly connected to an adjusting bolt. The extrusion piece is squeezed by rotating the adjusting bolt, so that the extrusion piece compresses the spring, thereby adjusting the flow rate of the pilot valve to change the overall air pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the back of the overall structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the drying mechanism of the utility model;

[0026] Figure 4 This is a schematic diagram of the decompression mechanism of the utility model;

[0027] Figure 5 This is a schematic diagram of the dissection of the decompression mechanism of the utility model.

[0028] Description of main symbols:

[0029] 1. Drying mechanism; 101. First dryer; 102. Second dryer; 103. Sealing flange; 104. Fixing nut; 105. Fixing screw; 106. Sealing tube; 107. Imported solenoid valve; 108. Stainless steel pneumatic valve; 109. Heating tube; 110. 3A molecular sieve; 2. Pressure reducing mechanism; 201. Pilot valve; 202. Main valve; 203. Steam trap; 204. Filter housing; 205. Filter disc; 206. Adjusting bolt; 207. Extrusion disc; 208. Spring; 3. Main body mechanism; 301. Main chassis; 302. Discharge port; 303. PLC controller; 304. Manual adjustment switch; 305. Alarm light; 306. Main base. DETAILED DESCRIPTION

[0030] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] Example:

[0032] Please combine Figure 1-5 The ammonia dehydration drying device of this embodiment includes a drying mechanism 1, a pressure reducing mechanism 2 and a main body mechanism 3. The drying mechanism 1 is located on the upper surface of the main body mechanism 3, and the pressure reducing mechanism 2 is located on the outer wall of the drying mechanism 1.

[0033] The drying mechanism 1 includes a first dryer 101, the first dryer 101 is fixedly connected to the main chassis 301, the upper surface of the main chassis 301 is fixedly connected to the second dryer 102, the upper surface of the first dryer 101 is fixedly connected to the sealing flange 103, the sealing flange 103 is fixedly connected to the fixing nut 104, and the inner wall of the fixing nut 104 is threadedly connected to the fixing screw 105.

[0034] A sealing tube 106 is fixedly connected to the outer wall of the first dryer 101 , an inlet electromagnetic valve 107 is clamped on the outer wall of the sealing tube 106 , and a stainless steel pneumatic valve 108 is clamped on the outer wall of the sealing tube 106 .

[0035] A heating tube 109 is fixedly connected to the inner wall of the second dryer 102 , and a 3A molecular sieve 110 is fixedly connected to the outer wall of the heating tube 109 .

[0036] The pressure reducing mechanism 2 includes a pilot valve 201 , the lower surface of the pilot valve 201 is fixedly connected to the main valve 202 , the lower surface of the main valve 202 is fixedly connected to the steam trap 203 , the inner wall of the main valve 202 is slidably connected to the filter housing 204 , and the inner wall of the filter housing 204 is clamped with a filter disc 205 .

[0037] An extrusion piece 207 is slidably connected to the inner wall of the pilot valve 201 , a spring 208 is fixedly connected to the lower surface of the extrusion piece 207 , and an adjusting bolt 206 is threadedly connected to the inner wall of the extrusion piece 207 .

[0038] The main body mechanism 3 includes a main chassis 301 , the upper surface of the main chassis 301 is fixedly connected to a PLC controller 303 , the outer wall of the PLC controller 303 is fixedly connected to a manual adjustment switch 304 , and the lower surface of the main chassis 301 is fixedly connected to a main base 306 .

[0039] The upper surface of the main chassis 301 is fixedly connected to the first dryer 101 , the upper surface of the first dryer 101 is fixedly connected to the alarm light 305 , the outer wall of the first dryer 101 is fixedly connected to the sealing tube 106 , the outer wall of the sealing tube 106 is fixedly connected to the discharge port 302 .

[0040] The implementation principle of an ammonia dehydration drying device in the embodiment of the present application is as follows: a first dryer 101 and a second dryer 102 are fixedly connected to the upper surface of a main chassis 301. By setting two dryers, uninterrupted operation can be performed. The first dryer 101 and the second dryer 102 are switched automatically by a PLC. The second dryer 102 is fixedly connected to a heating tube 109, and the heating tube 109 is fixedly connected to a 3A molecular sieve 110. After heating, ammonia is adsorbed by the 3A molecular sieve 110 in the second dryer 102, thereby obtaining pure ammonia with a dew point of ≤-50°C. When the first dryer 101 is working, the 3A molecular sieve 110 in the second dryer 102 is cooled for reuse. A fixing nut 104 and a fixing screw 105 are fixed on the upper surface. The lower two sealing flanges 103 are used to seal the entire dryer to increase the overall sealing performance. The outer wall of the sealing tube 106 is connected to the inlet solenoid valve 107 and the stainless steel pneumatic valve 108. The inlet solenoid valve 107 and the stainless steel pneumatic valve 108 are used to control the on-off of the overall airflow circuit, thereby increasing the automation of the overall mechanical equipment. A pilot valve 201 is fixedly connected to the main valve 202, and the main valve 202 is fixedly connected to the steam trap 203. The pressure of the ammonia entering is reduced by setting the pilot valve 201, and the ammonia is then passed into the sealing tube 106 by the main valve 202 for subsequent drying and purification. The main valve 202 is fixedly connected to the steam trap 203. In the process of reducing the pressure of the ammonia, the ammonia contacts the outer wall of the valve body to liquefy the ammonia, and the liquefied liquid is channeled through the steam trap 203.

[0041] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. An ammonia dehydration and drying device, characterized in that: It comprises a drying mechanism (1), a decompression mechanism (2) and a main body mechanism (3), wherein the drying mechanism (1) is located on the upper surface of the main body mechanism (3), and the decompression mechanism (2) is located on the outer wall of the drying mechanism (1); The drying mechanism (1) comprises a first dryer (101), the first dryer (101) is fixedly connected to a main chassis (301), the upper surface of the main chassis (301) is fixedly connected to a second dryer (102), the upper surface of the first dryer (101) is fixedly connected to a sealing flange (103), the sealing flange (103) is fixedly connected to a fixing nut (104), and the inner wall of the fixing nut (104) is threadedly connected to a fixing screw (105).

2. The ammonia dehydration and drying device according to claim 1, characterized in that: The outer wall of the first dryer (101) is fixedly connected with a sealing tube (106), the outer wall of the sealing tube (106) is clamped with an inlet electromagnetic valve (107), and the outer wall of the sealing tube (106) is clamped with a stainless steel pneumatic valve (108).

3. The ammonia dehydration and drying device according to claim 1, characterized in that: A heating tube (109) is fixedly connected to the inner wall of the second dryer (102), and a 3A molecular sieve (110) is fixedly connected to the outer wall of the heating tube (109).

4. The ammonia dehydration and drying device according to claim 1, characterized in that: The pressure reducing mechanism (2) comprises a pilot valve (201), the lower surface of the pilot valve (201) is fixedly connected to a main valve (202), the lower surface of the main valve (202) is fixedly connected to a steam trap (203), the inner wall of the main valve (202) is slidably connected to a filter housing (204), and the inner wall of the filter housing (204) is clamped with a filter disc (205).

5. The ammonia dehydration and drying device according to claim 4, characterized in that: The inner wall of the pilot valve (201) is slidably connected to an extrusion piece (207), the lower surface of the extrusion piece (207) is fixedly connected to a spring (208), and the inner wall of the extrusion piece (207) is threadedly connected to an adjusting bolt (206).

6. The ammonia dehydration and drying device according to claim 1, characterized in that: The main body mechanism (3) comprises a main chassis (301), the upper surface of the main chassis (301) is fixedly connected to a PLC controller (303), the outer wall of the PLC controller (303) is fixedly connected to a manual adjustment switch (304), and the lower surface of the main chassis (301) is fixedly connected to a main base (306).

7. The ammonia dehydration and drying device according to claim 6, characterized in that: The upper surface of the main chassis (301) is fixedly connected to a first dryer (101), the upper surface of the first dryer (101) is fixedly connected to an alarm light (305), the outer wall of the first dryer (101) is fixedly connected to a sealing tube (106), and the outer wall of the sealing tube (106) is fixedly connected to a discharge port (302).

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