High-energy-efficiency freezing device for chlor-alkali factory
By introducing a circulation and stirring mechanism into the refrigeration unit of the chlor-alkali plant, the problems of poor cooling effect and poor fluidity were solved, achieving efficient cooling of liquid chlorine and improving its fluidity, thereby reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-17
AI Technical Summary
The existing chlor-alkali plant's refrigeration unit suffers from poor cooling performance, poor refrigerant circulation, and poor liquid chlorine flow, resulting in low liquefaction efficiency and increased production costs.
Design a high-efficiency refrigeration unit for a chlor-alkali plant, comprising a circulation mechanism and a stirring mechanism. The circulation mechanism enables the circulation of the refrigerant, while the stirring mechanism increases the fluidity of the liquid chlorine. The combined structure of the pump body, conduit, cooling pipe, and stirring blades enhances the cooling effect.
It improves the freezing effect and fluidity of liquid chlorine, enhances cooling efficiency, and reduces production costs.
Smart Images

Figure CN224004013U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chlor-alkali plant technology, and in particular to a high-efficiency refrigeration device for chlor-alkali plants. Background Technology
[0002] A chlor-alkali plant is a specialized factory engaged in the production of chlor-alkali products, primarily producing chlorine and sodium hydroxide. These products are important chemical raw materials, widely used in water treatment, plastics, pulp and paper, petrochemicals, and other industries. Chlor-alkali plants obtain chlorine, hydrogen, and sodium hydroxide through the electrolysis of brine, a process requiring a large amount of electricity. Chlor-alkali plants are fundamental and crucial production units in the chemical industry.
[0003] In the production process of chlor-alkali plants, chlorine gas is usually present in gaseous form, but in some process stages, it needs to be converted into liquid for storage and transportation. Liquefying chlorine gas requires cooling, but existing refrigeration equipment suffers from problems such as poor cooling effect, poor circulation of the refrigerant, and poor fluidity of liquid chlorine, resulting in low liquefaction efficiency and increased production costs. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a high-efficiency refrigeration device for chlor-alkali plants.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] Design a high-efficiency refrigeration device for a chlor-alkali plant, including a refrigeration box, a circulation mechanism and a stirring mechanism inside the refrigeration box, the circulation mechanism including a box body, the box body being fixedly installed at the top of the refrigeration box, a first pump body being fixedly installed at the top of the refrigeration box, the water inlet pipe of the first pump body being connected to the box body, a first conduit and a second conduit being rotatably connected to the side of the refrigeration box, one end of the first conduit and the second conduit both penetrating the inner wall of the refrigeration box, the same cooling pipe being fixedly installed at one end of the first conduit and the water outlet pipe of the first pump body being rotatably connected to the inner wall of the first conduit;
[0007] The stirring mechanism includes a rotating rod, which is rotatably connected to the freezer. A stirring blade is fixedly installed on the rotating rod. One end of the rotating rod passes through the freezer and is connected to a second guide tube via a track mechanism.
[0008] Furthermore, a reflux pipe is fixedly installed on the side of the box. The reflux pipe is C-shaped, and one end of the reflux pipe is rotatably connected to the inner wall of the second conduit.
[0009] Furthermore, there are two rotating rods, which are symmetrically arranged with the second conduit as the center, and the rotating rods are cylindrical rods.
[0010] Furthermore, the stirring blades are square in shape, and there are forty stirring blades in total.
[0011] Furthermore, a motor is fixedly installed on the side of the freezer, and a gear is fixedly installed on the shaft end of the motor.
[0012] Furthermore, a toothed ring is fixedly installed on the first conduit, and the gear meshes with the toothed ring.
[0013] Furthermore, a second pump body is fixedly installed on the side of the freezer, and the inlet and outlet pipes of the second pump body are both connected to the freezer.
[0014] The present invention proposes a high-efficiency refrigeration device for chlor-alkali plants, which has the following advantages: The present invention is equipped with a circulation mechanism to drive the refrigerant to circulate within the refrigeration chamber, thereby facilitating the cooling of liquid chlorine. The circulation mechanism within the refrigeration chamber increases the fluidity of the liquid chlorine, thereby improving the refrigeration effect of the liquid chlorine. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a rear view of the overall structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the cooling pipe of this utility model;
[0018] Figure 4 for Figure 2 A magnified structural diagram of area A.
[0019] In the diagram: 1. Freezer; 21. Return pipe; 22. Box body; 23. First pump body; 24. Second conduit; 25. Cooling pipe; 26. First conduit; 27. Gear ring; 28. Gear; 29. Motor; 31. Track mechanism; 32. Second pump body; 33. Rotary rod; 34. Agitator blade. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] Reference Figure 1-4 A high-efficiency refrigeration device for a chlor-alkali plant includes a refrigeration tank 1. The refrigeration tank 1 is equipped with a circulation mechanism to circulate the coolant within the tank, facilitating the cooling of liquid chlorine. The refrigeration tank 1 also includes a stirring mechanism to increase the fluidity of the liquid chlorine, thereby improving the cooling effect. The circulation mechanism includes a housing 22, which is fixedly installed at the top of the refrigeration tank 1 and stores the coolant. A first pump 23 is fixedly installed at the top of the refrigeration tank 1 to pump the coolant from the housing 22. The coolant is drawn into the first conduit 26. The inlet pipe of the first pump body 23 is connected to the box body 22. The first conduit 26 and the second conduit 24 are rotatably connected to the side of the freezer 1. The first conduit 26 and the second conduit 24 are provided to support the installation of the cooling pipe 25. One end of the first conduit 26 and the second conduit 24 both penetrate the inner wall of the freezer 1. The same cooling pipe 25 is fixedly installed at one end of the first conduit 26 and the second conduit 24. The cooling pipe 25 is provided to increase the flow time of the coolant in the liquid chlorine gas, thereby facilitating the cooling of the liquid chlorine gas. The outlet pipe of the first pump body 23 is rotatably connected to the inner wall of the first conduit 26.
[0022] The stirring mechanism includes a rotating rod 33, which is rotatably connected inside the freezer 1. The rotating rod 33 is used to support the installation of the stirring blade 34. The stirring blade 34 is fixedly installed on the rotating rod 33. The stirring blade 34 is used to stir the liquid chlorine gas, thereby increasing the fluidity of the liquid chlorine gas. One end of the rotating rod 33 passes through the freezer 1, and the other end of the rotating rod 33 is connected to the second conduit 24 through a crawler mechanism 31. By providing the crawler mechanism 31, when the second conduit 24 rotates, it drives the rotating rods 33 on both sides to rotate simultaneously.
[0023] In detail, a return pipe 21 is fixedly installed on the side of the housing 22. The return pipe 21 is C-shaped, and one end of the return pipe 21 is rotatably connected to the inner wall of the second conduit 24. The return pipe 21 is set up to allow the coolant to flow back into the housing 22 for cooling.
[0024] Furthermore, there are two rotating rods 33, which are symmetrically arranged with the second guide tube 24 as the center. The rotating rods 33 are cylindrical rods, and are arranged to support the installation of the stirring blades 34.
[0025] Furthermore, the stirring blade 34 is square in shape, and there are forty stirring blades 34. The stirring blades 34 are used to stir the liquid chlorine gas, thereby increasing the fluidity of the liquid chlorine gas and facilitating its cooling.
[0026] More specifically, a motor 29 is fixedly installed on the side of the freezer 1. The motor 29 is configured to drive the gear 28 to rotate. The gear 28 is fixedly installed on the shaft end of the motor 29. The gear 28 is configured to mesh with the gear ring 27.
[0027] In general, a gear ring 27 is fixedly installed on the first conduit 26, and a gear 28 meshes with the gear ring 27. By setting the gear 28 and the gear ring 27, the first conduit 26 is driven to rotate when the motor 29 is working.
[0028] Finally, a second pump body 32 is fixedly installed on the side of the freezer 1. The inlet and outlet pipes of the second pump body 32 are connected to the second pump body 32 of the freezer 1 to increase the flow of liquid chlorine gas in the freezer 1.
[0029] Operating Procedure: During operation, when cooling of liquid chlorine gas in the freezer 1 is required, the freezer 1 is started, and simultaneously the first pump 23, the second pump 32, and the motor 29 are activated. The first pump 23 guides the coolant from the freezer 22 into the first conduit 26, which then flows back into the freezer 22 through the first conduit 26, cooling pipe 25, second conduit 24, and return pipe 21. Simultaneously, the second pump 32 draws liquid chlorine gas from the bottom of the freezer 1 and guides it to the upper part of the freezer 1. When the motor 29 is operating, it drives the first conduit 26 to rotate via the gear 28 and gear ring 27. The first conduit 26 then drives the cooling pipe 25 and the second conduit 24 to rotate. As the second conduit 24 rotates, it drives the rotating rod 33 to rotate via the track mechanism 31. The rotating rod 33 then drives the stirring blade 34 to rotate, which stirs the liquid chlorine gas. This, combined with the operation of the second pump 32, increases the fluidity of the liquid chlorine gas, facilitating cooling of the liquid chlorine gas.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A high energy efficiency chlor-alkali plant refrigeration apparatus comprising a refrigeration cabinet (1), characterized in that: The freezing box (1) is provided with a circulating mechanism and a stirring mechanism. The circulating mechanism comprises a box body (22) fixedly installed at the top end of the freezing box (1), a first pump body (23) fixedly installed at the top end of the freezing box (1), a water inlet pipe of the first pump body (23) communicated with the box body (22), a first conduit (26) and a second conduit (24) rotatably connected to the side of the freezing box (1), one end of the first conduit (26) and the second conduit (24) penetrating through the inner wall of the freezing box (1), a same cooling pipe (25) fixedly installed at one end of the first conduit (26) and the second conduit (24), and a water outlet pipe of the first pump body (23) rotatably connected to the inner wall of the first conduit (26). The stirring mechanism comprises a rotating rod (33) rotatably connected in the freezing box (1), a stirring blade (34) fixedly installed on the rotating rod (33), one end of the rotating rod (33) penetrating through the freezing box (1), and the rotating rod (33) connected to the second conduit (24) through a track mechanism (31).
2. A high energy efficiency chlor-alkali plant refrigeration apparatus according to claim 1, characterized in that: The side of the box body (22) is fixedly installed with a return pipe (21), the return pipe (21) is C-shaped, and one end of the return pipe (21) is rotatably connected to the inner wall of the second conduit (24).
3. A high energy efficiency chlor-alkali plant refrigeration unit according to claim 1, characterized in that: The number of the rotating rods (33) is two, the two rotating rods (33) are symmetrically arranged with the second conduit (24) as the center, and the rotating rod (33) is a cylindrical rod.
4. A high energy efficiency chlor-alkali plant refrigeration unit according to claim 1, characterized in that: The stirring blade (34) is a square sheet, and the number of the stirring blades (34) is forty.
5. A high energy efficiency chlor-alkali plant refrigeration unit according to claim 1, characterized in that: The side of the freezing box (1) is fixedly installed with a motor (29), and a gear (28) is fixedly installed at the rotating shaft end of the motor (29).
6. A high energy efficiency chlor-alkali plant refrigeration apparatus according to claim 5, characterized in that: The first conduit (26) is fixedly installed with a tooth ring (27), and the gear (28) is engaged with the tooth ring (27).
7. A high energy efficiency chlor-alkali plant refrigeration apparatus according to claim 1, characterized in that; The side of the freezing box (1) is fixedly installed with a second pump body (32), and the water inlet pipe and the water outlet pipe of the second pump body (32) are communicated with the freezing box (1).