A cooling device for preparing a water reducing agent
The limiting mechanism simplifies the replacement and installation of circulating pipes in the water-reducing agent preparation device, solves the deformation problem caused by thermal expansion and contraction, realizes convenient pipe connection, and expands the scope of application.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZIBO JINGUAN NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-02
AI Technical Summary
During the preparation of water-reducing agents, the circulating pipelines deform due to thermal expansion and contraction, requiring frequent replacement. Furthermore, when connecting multiple flange sections, the length needs to be adjusted multiple times, leading to inconvenient installation.
A limiting mechanism was designed, including a limiting unit and a reset unit. The limiting unit enables a reliable connection between the circulation pipeline and the reactor and cooling water tank, while the reset unit provides elastic thrust, simplifying the pipeline replacement and installation process.
It improves the ease of replacement and installation of circulating pipelines, expands the scope of application, and ensures a sealed connection between pipelines and equipment.
Smart Images

Figure CN224316537U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reactor chillers, specifically a cooling device for the preparation of water-reducing agents. Background Technology
[0002] Water-reducing agents are concrete admixtures that reduce the amount of water used in mixing while maintaining the slump of the concrete. Most of them are anionic surfactants, such as lignin sulfonates, naphthalene sulfonates, and formaldehyde polymers. After being added to the concrete mixture, they have a dispersing effect on cement particles, which can improve its workability, reduce the unit water consumption, improve the fluidity of the concrete mixture, or reduce the unit cement consumption and save cement.
[0003] In the preparation of water-reducing agents, a reaction vessel is usually used for stirring. During the polymerization reaction stage of the preparation process, a large amount of heat is generated, which needs to be transferred through a jacketed cooling device inside the reaction vessel. The reaction vessel is cooled through two circulation pipes to maintain the temperature within a certain range. Due to long-term use, the pipes will deform under the action of thermal expansion and contraction, and the pipes need to be replaced and maintained regularly. When installing circulation pipes with multi-section flange connections, the length of each individual pipe needs to be adjusted multiple times during the connection process. The pipes need to be cut and grooved to fit the distance between the cooling water tank and the reaction vessel. Based on this, this utility model proposes a cooling device for the preparation of water-reducing agents. Utility Model Content
[0004] The purpose of this invention is to provide a cooling device for preparing water-reducing agents in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a cooling device for preparing a water-reducing agent, comprising a reaction vessel, and a circulation pipe connected to the bottom of the reaction vessel for circulating cooling water in the reaction vessel jacket, the other end of the circulation pipe being connected to a cooling water tank for cooling the transported cooling water, and a limiting mechanism provided on the circulation pipe for providing connection limits between the circulation pipe and the reaction vessel and the cooling water tank;
[0006] The limiting mechanism includes a limiting unit and a reset unit;
[0007] The limiting unit is used to connect the circulation pipeline to the reactor and the cooling water tank;
[0008] The reset unit is used to always apply an elastic thrust in one direction to the second threaded sleeve.
[0009] As a further embodiment of this utility model: the limiting unit includes a first threaded sleeve, a movable sleeve, a guide block, a guide groove, and a second threaded sleeve;
[0010] The first threaded sleeve is rotatably mounted on the end of the vertical rod of the circulation pipe and extends to the bottom of the reactor and is threadedly connected to the bottom of the reactor. The first threaded sleeve is connected to the clamping cavity of the reactor and is used to provide a limit for the connection between the circulation pipe and the reactor.
[0011] The movable sleeve is axially slidably mounted on the outer wall of the circulation pipe via a guide block. The movable sleeve is used to drive the second threaded sleeve to move synchronously. The guide groove is opened on the outer wall of the circulation pipe. The guide groove is used to provide axial movement space for the guide block fixed in the inner cavity of the movable sleeve. The second threaded sleeve is rotatably mounted in the inner cavity of the end of the movable sleeve and extends into the inner cavity of the cooling water tank and is threadedly connected to the inner cavity of the cooling water tank. The second threaded sleeve is used to provide a limit for the connection between the circulation pipe and the cooling water tank.
[0012] As a further embodiment of this utility model: the reset unit includes a fixing rod, a fixing ring, and a spring;
[0013] The fixing rod is fixed to the top of the outer periphery of the circulation pipe, and the other end of the fixing rod extends into the inner cavity of the movable sleeve and is fixedly connected to the outer wall of the fixing ring. The fixing ring is sleeved in the inner cavity of the movable sleeve. The fixing ring is used to provide spring compression thrust. The spring is wrapped around the inner cavity of the movable sleeve, and the two ends of the spring are respectively clamped to the inner cavity of the movable sleeve and the outer wall of the fixing ring. The spring is used to always provide the movable sleeve with compression thrust in one direction.
[0014] As a further improvement of this utility model: the inner cavity of the guide groove matches the outer wall of the guide block, and the outer wall of the guide block has an overall "convex" shaped structure.
[0015] As a further improvement of this utility model: the outer wall of the fixed rod is generally L-shaped, and the inner cavity of the movable sleeve is formed with a movable groove for the relative movement of the fixed ring in an annular state.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] By setting a limiting mechanism, when the circulation pipe needs to be replaced, the second threaded sleeve can be rotated to move outward along the threaded groove inside the cooling water tank, and simultaneously move axially along the outer side of the circulation pipe, thereby disconnecting the connection between the circulation pipe and the cooling water tank. When a multi-section flanged circulation pipe needs to be installed, this structure can adapt to the distance between the reactor and the cooling water tank by making the end of one circulation pipe movable, further improving the scope of use. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the internal structure of the circulation pipe of this utility model;
[0020] Figure 3 This is a partial enlarged view of point A of this utility model.
[0021] In the diagram: 1. Reactor; 2. Circulation pipe; 3. Cooling water tank; 4. Limiting mechanism; 401. First threaded sleeve; 402. Movable sleeve; 403. Guide block; 404. Guide groove; 405. Second threaded sleeve; 406. Fixed rod; 407. Fixed ring; 408. Spring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-3 In this embodiment of the present invention, a cooling device for preparing a water-reducing agent includes a reaction vessel 1, a circulation pipe 2 connected to the bottom of the reaction vessel 1 for circulating cooling water in the jacket of the reaction vessel 1, a cooling water tank 3 connected to the other end of the circulation pipe 2 for cooling the circulating cooling water, and a limiting mechanism 4 provided on the circulation pipe 2 for providing connection and limiting between the circulation pipe 2 and the reaction vessel 1 and the cooling water tank 3.
[0024] The limiting mechanism 4 includes a limiting unit and a reset unit;
[0025] The limiting unit is used to connect the circulation pipe 2 to the reactor 1 and the cooling water tank 3;
[0026] The reset unit is used to always apply an elastic thrust in one direction to the second threaded sleeve 405;
[0027] The limiting unit includes a first threaded sleeve 401, a movable sleeve 402, a guide block 403, a guide groove 404, and a second threaded sleeve 405;
[0028] The first threaded sleeve 401 is rotatably installed at the end of the vertical rod of the circulation pipe 2 and extends to the bottom of the reactor 1 and is threadedly connected to the bottom of the reactor 1. The first threaded sleeve 401 is connected to the clamping cavity of the reactor 1 and is used to provide a limit for the connection between the circulation pipe 2 and the reactor 1.
[0029] The movable sleeve 402 is axially slidably mounted on the outer wall of the circulation pipe 2 via the guide block 403. The movable sleeve 402 is used to drive the second threaded sleeve 405 to move synchronously. The guide groove 404 is opened on the outer wall of the circulation pipe 2. The guide groove 404 is used to provide axial movement space for the guide block 403 fixed in the inner cavity of the movable sleeve 402. The second threaded sleeve 405 is rotatably mounted in the inner cavity of the end of the movable sleeve 402 and extends into the inner cavity of the cooling water tank 3 and is threadedly connected to the inner cavity of the cooling water tank 3. The second threaded sleeve 405 is used to provide a limit for the connection between the circulation pipe 2 and the cooling water tank 3.
[0030] The reset unit includes a fixing rod 406, a fixing ring 407, and a spring 408;
[0031] The fixing rod 406 is fixed to the top of the outer periphery of the circulation pipe 2, and the other end of the fixing rod 406 extends into the inner cavity of the movable sleeve 402 and is fixedly connected to the outer wall of the fixing ring 407. The fixing ring 407 is sleeved in the inner cavity of the movable sleeve 402. The fixing ring 407 is used to give the spring 408 a compressive thrust. The spring 408 is wrapped around the inner cavity of the movable sleeve 402, and the two ends of the spring 408 are respectively engaged with the inner cavity of the movable sleeve 402 and the outer wall of the fixing ring 407. The spring 408 is used to always give the movable sleeve 402 a compressive thrust in one direction.
[0032] In this embodiment: when the circulation pipe 2 needs to be replaced, by applying rotational force to the second threaded sleeve 405, the second threaded sleeve 405 rotates along the inner thread of the cooling water tank 3. The rotating second threaded sleeve 405 will rotate along the inner cavity of the movable sleeve 402. The second threaded sleeve 405, moving outward through the thread, will also simultaneously push the movable sleeve 402 and the guide block 403 axially along the inner cavity of the guide groove 404 until the second threaded sleeve 405 moves out of the inner thread groove of the cooling water tank 3. Under the action of the spring 408, the second threaded sleeve 405 is still abutting against the end of the thread groove of the cooling water tank 3. At this time, rotational force can be applied to the first threaded sleeve 401, causing the first threaded sleeve 401 to move out of the reactor 1. The bottom threaded groove is removed, achieving the purpose of separating the circulation pipe 2 from the reactor 1 and the cooling water tank 3. When a multi-section flange-connected circulation pipe needs to be installed, this structure, through the mobility of the end of one circulation pipe, adapts to the distance between the reactor and the cooling water tank, further improving its application range. Among them, the ends of the first threaded sleeve 401 and the second threaded sleeve 405 that contact the reactor 1 and the cooling water tank 3, as well as the contact surface of the movable sleeve 402 with the circulation pipe 2, are all provided with sealing gaskets to seal the cooling water. The end of the second threaded sleeve 405 is connected to the input end of the waterproof pump installed in the inner cavity of the cooling water tank 3. The waterproof pump is electrically connected to an external power source through a wire, and the output end of the waterproof pump is connected to another circulation pipe 2.
[0033] Please refer specifically to Figures 1-3 , the inner cavity of the guiding groove 404 matches the outer wall of the guiding block 403. The outer wall of the guiding block 403 is integrally in a "convex" shape structure, and the outer wall of the fixing rod 406 is integrally in an "L" shape structure. An activity groove for the relative movement of the fixing ring 407 in a circular state is formed in the inner cavity of the movable sleeve 402.
[0034] In this embodiment: through this structure, when the movable sleeve 402 receives the thrust from the second threaded sleeve 405, the movable sleeve 402 will axially move along the inner cavity of the guiding groove 404 on the outer wall of the circulating pipe 2 under the action of the guiding block 403. The moving movable sleeve 402 will also relatively move along the outer wall of the fixing ring 407, thereby applying a squeezing force to the spring 408, so that the end of the second threaded sleeve 405 is always abutted against the end of the threaded groove of the cooling water tank 3 by the elastic thrust from the spring 408.
[0035] The above is only the preferred specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.
Claims
1. A cooling device for preparing a water-reducing agent, comprising a reaction vessel (1), characterized in that, It also includes a circulation pipe (2) connected to the bottom of the reactor (1) to circulate and transport cooling water in the jacket of the reactor (1), and the other end of the circulation pipe (2) is connected to a cooling water tank (3) to cool the transported cooling water. It also includes a limiting mechanism (4) provided on the circulation pipe (2) to provide connection limit between the circulation pipe (2) and the reactor (1) and the cooling water tank (3). The limiting mechanism (4) includes a limiting unit and a reset unit; The limiting unit is used to connect the circulation pipe (2) to the reactor (1) and the cooling water tank (3); The reset unit is used to always apply an elastic thrust in one direction to the second threaded sleeve (405).
2. The cooling device for preparing a water-reducing agent according to claim 1, characterized in that, The limiting unit includes a first threaded sleeve (401), a movable sleeve (402), a guide block (403), a guide groove (404), and a second threaded sleeve (405). The first threaded sleeve (401) is rotatably mounted on the end of the vertical rod of the circulation pipe (2) and extends to the bottom of the reactor (1) and is threadedly connected to the bottom of the reactor (1). The first threaded sleeve (401) is connected to the cavity of the reactor (1). The first threaded sleeve (401) is used to provide a limit for the connection between the circulation pipe (2) and the reactor (1). The movable sleeve (402) is axially slidably mounted on the outer wall of the circulation pipe (2) via the guide block (403). The movable sleeve (402) is used to drive the second threaded sleeve (405) to move synchronously. The guide groove (404) is opened on the outer wall of the circulation pipe (2). The guide groove (404) is used to provide axial movement space for the guide block (403) fixed in the inner cavity of the movable sleeve (402). The second threaded sleeve (405) is rotatably mounted in the inner cavity of the end of the movable sleeve (402) and extends to the inner cavity of the cooling water tank (3) and is threadedly connected to the inner cavity of the cooling water tank (3). The second threaded sleeve (405) is used to provide a limit for the connection between the circulation pipe (2) and the cooling water tank (3).
3. The cooling device for preparing a water-reducing agent according to claim 1, characterized in that, The reset unit includes a fixing rod (406), a fixing ring (407), and a spring (408). The fixing rod (406) is fixed to the top of the outer periphery of the circulation pipe (2), and the other end of the fixing rod (406) extends to the inner cavity of the movable sleeve (402) and is fixedly connected to the outer wall of the fixing ring (407). The fixing ring (407) is circumferentially sleeved in the inner cavity of the movable sleeve (402). The fixing ring (407) is used to give the spring (408) a squeezing thrust. The spring (408) surrounds the inner cavity of the movable sleeve (402), and the two ends of the spring (408) are respectively clamped to the inner cavity of the movable sleeve (402) and the outer wall of the fixing ring (407). The spring (408) is used to always give the movable sleeve (402) a squeezing thrust in one direction.
4. The cooling device for preparing a water-reducing agent according to claim 2, characterized in that, The inner cavity of the guide groove (404) matches the outer wall of the guide block (403), and the outer wall of the guide block (403) has an overall "convex" shaped structure.
5. A cooling device for preparing a water-reducing agent according to claim 3, characterized in that, The outer wall of the fixed rod (406) is in an "L" shape, and the inner cavity of the movable sleeve (402) is formed with a movable groove for the relative movement of the fixed ring (407) in an annular state.