Solenoid valve anti-freezing device for mixing plant

Abstract

The electromagnetic valve anti-freezing device for the mixing plant comprises a box body, a support is fixed to the right side of an inner cavity of the box body, a plurality of sets of electromagnetic valves are arranged on one side of the left side of the support in the vertical direction, butt joint air pipes are arranged at the two ends of each set of electromagnetic valve, and one ends of the butt joint air pipes penetrate through the box body and extend towards the front face. Placement grooves are formed in the two sides of the box body, fixing frames covering the placement grooves are fixed to the two sides of the box body, a plurality of sets of temperature sensors are arranged in the box body, an anti-freezing assembly is arranged on the box body, and the anti-freezing assembly comprises coiled pipes fixed in the placement grooves. By means of the structure, it can be effectively guaranteed that the appropriate temperature is continuously kept in the box body, so that the electromagnetic valve can be kept at the appropriate temperature, the situation that the sensitivity of the electromagnetic valve is affected due to the fact that moisture in air is condensed when encountering cold can be effectively avoided, opening and closing of a bin door can be effectively prevented from being affected, and accurate control over the concrete discharging amount can be prevented from being affected.

Description

Technical Field

[0001] This utility model relates to the field of mixing plant technology, and in particular to an antifreeze device for a solenoid valve used in mixing plants. Background Technology

[0002] A batching plant is an engineering equipment used for concrete construction. It is mainly used for mixing and mixing concrete and is also known as a concrete batching plant or commercial concrete plant. A batching plant mainly consists of five major systems: a mixing host, a material weighing system, a material conveying system, a material storage system, and a control system. It has a high degree of intelligence and automation. The batching plant cylinder is one of the main control components of the batching plant. It is used to control the opening, closing, and tilting of the concrete aggregate discharge port, and the batching plant cylinder is controlled by a solenoid valve.

[0003] Air contains moisture, which condenses when the temperature is low, directly affecting the sensitivity of the solenoid valve. Affected solenoid valves will directly affect the normal opening and closing of the silo door and make it impossible to accurately control the discharge rate. Therefore, we have proposed an anti-freezing device for solenoid valves in mixing plants to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies that cannot maintain a suitable temperature for solenoid valves, and to propose an antifreeze device for solenoid valves in mixing plants.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An antifreeze device for solenoid valves used in a mixing plant includes a housing. A bracket is fixed to the right side of the housing's inner cavity, and multiple sets of solenoid valves are arranged along the left side of the bracket in the vertical direction. Each set of solenoid valves has connecting air pipes at both ends, with one end of the connecting air pipes penetrating the housing and extending towards the front. Placement slots are provided on both sides of the housing, and fixing frames covering the placement slots are fixed to both sides of the housing. Multiple sets of temperature sensors are installed inside the housing, and antifreeze components are installed on the housing.

[0007] Preferably, the antifreeze component includes a serpentine tube fixed in each set of placement slots. One end of each set of serpentine tubes passes through a fixing frame and is connected to a vertical tube located on the back of the box. Multiple sets of connecting pipes communicating with the box are sequentially connected along the vertical direction on each set of vertical tubes. Two sets of fixing cylinders are symmetrically fixed along the left-right direction on the back of the top of the box. The front of one set of fixing cylinders is connected to a square box whose bottom is fixed to the box. Multiple sets of heating wires are sequentially arranged in the vertical direction inside the square box. The front of the other set of fixing cylinders and the square box is connected to a connecting frame, and the other end of the serpentine tube passes through... A fixed frame is passed through and connected to a connecting frame. A venturi tube is provided at the joint between the connecting frame and the serpentine tube. An auxiliary fan is fixed to the back of the inner cavity of each set of fixed cylinders. Exhaust pipes are symmetrically connected to both sides of the top of the box along the front-back direction. A sealing cylinder is inserted into each set of exhaust pipes. Multiple sets of air outlets are evenly opened at the bottom of the surface of each set of sealing cylinders. An exhaust fan is embedded at the bottom of the inner cavity of each set of sealing cylinders. A docking plate is fixed to the top of the two sets of sealing cylinders that are close to each other. Electric push rods are fixed to both sides of the top of the box, and the piston rod of the electric push rod is fixed to the docking plate.

[0008] Preferably, the number of temperature sensors is at least two sets, and the multiple sets of temperature sensors are respectively arranged on one side of the bottom and one side of the top of the back of the box.

[0009] Preferably, the back of the inner cavity of each set of fixed cylinders is fitted with an isolation filter screen for use with the auxiliary fan.

[0010] Preferably, one-way valves are provided at both ends of the connecting frame away from the serpentine tube.

[0011] Preferably, each set of vertical pipes has at least five connecting pipes, with four sets of connecting pipes inclined inwards, and the vertical pipes arranged in an alternating pattern.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This mixing plant uses an anti-freeze device for solenoid valves. By incorporating an anti-freeze component and utilizing a heating wire as a heat source, the hot air, accelerated by an auxiliary fan, rapidly enters the serpentine tube after passing through a venturi tube, heating the tube and thus initially heating the interior of the mixing chamber. The hot air circulating within the serpentine tube is then sprayed into multiple locations within the mixing chamber via multiple sets of connecting pipes, quickly maintaining a certain temperature inside. The design of two sets of auxiliary fans allows for timely introduction of cold outside air into the serpentine tube and mixing chamber when the internal temperature becomes too high, neutralizing the hot air. With the assistance of an electric actuator, the position of the sealing cylinder is adjusted to fully expose the vent, allowing the exhaust fan to quickly expel heat from the mixing chamber. This effectively ensures a consistently suitable temperature within the mixing chamber, maintaining a suitable temperature for the solenoid valve. This prevents moisture in the air from condensing and affecting the sensitivity of the solenoid valve, thus preventing interference with the opening and closing of the silo door and ensuring precise control of the concrete output. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the antifreeze device for the solenoid valve in the mixing plant proposed in this utility model;

[0015] Figure 2 This is a rear view of the structure of the antifreeze device for the electromagnetic valve in the mixing plant proposed in this utility model;

[0016] Figure 3 This is a partial cross-sectional view of the structure of the antifreeze device for the solenoid valve in the mixing plant proposed in this utility model.

[0017] In the diagram: 1. Box body; 2. Fixing frame; 3. Placement slot; 4. Temperature sensor; 5. Solenoid valve; 6. Connecting air pipe; 7. Snake-shaped pipe; 8. Fixing cylinder; 9. Square box; 10. Connecting frame; 11. One-way valve; 12. Venturi tube; 13. Auxiliary fan; 14. Heating wire; 15. Vertical pipe; 16. Connecting pipe; 17. Sealing cylinder; 18. Air outlet; 19. Electric push rod; 20. Exhaust fan; 21. Connecting plate. Detailed Implementation

[0018] 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.

[0019] Example

[0020] Reference Figure 1 and Figure 3The antifreeze device for solenoid valves in a mixing plant includes a housing 1. A bracket is fixed to the right side of the inner cavity of the housing 1, and multiple sets of solenoid valves 5 are installed on the left side of the bracket along the vertical direction. Each set of solenoid valves 5 has connecting air pipes 6 at both ends, with one end of the connecting air pipes 6 penetrating the housing 1 and extending towards the front. Placement slots 3 are provided on both sides of the housing 1, and fixing frames 2 covering the placement slots 3 are fixed to both sides of the housing 1. Multiple sets of temperature sensors 4 are installed inside the housing 1, with at least two sets. The multiple sets of temperature sensors 4 are respectively located on one side of the bottom and one side of the top of the back of the housing 1. The limitation on the number and position of the temperature sensors 4 ensures… To ensure the accuracy of temperature data, the chamber 1 is equipped with an antifreeze component. The antifreeze component includes a serpentine tube 7 fixed in each set of placement slots 3. One end of each set of serpentine tube 7 passes through the fixing frame 2 and is connected to a vertical tube 15 located on the back of the chamber 1. Each set of vertical tubes 15 is connected in the vertical direction to multiple sets of connecting pipes 16 that are connected to the chamber 1. Each set of vertical tubes 15 has at least five connecting pipes 16, of which four sets of connecting pipes 16 are inclined inward. The vertical tubes 15 are arranged in an alternating vertical manner, which improves the diffusion range of hot air in the chamber 1, so that the hot air can be evenly diffused in the chamber 1, and so that the solenoid valves 5 in different positions can maintain the same suitable temperature.

[0021] Reference Figures 1-3Two sets of fixing cylinders 8 are symmetrically fixed on the back of the top of the housing 1 along the left-right direction. The front of one set of fixing cylinders 8 is connected to a square box 9 fixed to the bottom of the housing 1. Multiple sets of heating wires 14 are arranged in the square box 9 along the top-bottom direction. The front of the other set of fixing cylinders 8 and the square box 9 is connected to a connecting frame 10, and the other end of the serpentine tube 7 passes through the fixing frame 2 and is connected to the connecting frame 10. A venturi tube 12 is provided at the joint between the connecting frame 10 and the serpentine tube 7. An auxiliary fan 13 is fixed on the back of the inner cavity of each set of fixing cylinders 8. An isolation filter screen for use with the auxiliary fan 13 is embedded on the back of the inner cavity of each set of fixing cylinders 8. The design of the isolation filter screen can prevent external impurities from directly entering the fixing cylinder 8 and damaging the auxiliary fan 13 inside. Exhaust pipes are symmetrically connected on both sides of the top of the housing 1 along the front-back direction, and a sealing cylinder 17 is inserted into each set of exhaust pipes. Multiple sets of air vents 18 are evenly opened at the bottom of the surface of the cylinder 17. An exhaust fan 20 is embedded in the bottom of the inner cavity of each set of sealing cylinders 17. The tops of the front and rear sets of sealing cylinders 17 are fixed with docking plates 21. Electric push rods 19 are fixed on both sides of the top of the box 1, and the piston rod of the electric push rod 19 is fixed on the docking plate 21. By setting anti-freezing components, the box 1 can be effectively kept at a suitable temperature, so that the solenoid valve 5 can be kept at a certain suitable temperature. This can effectively prevent the sensitivity of the solenoid valve 5 from being affected by the condensation of moisture in the air, thus effectively preventing the opening and closing of the silo door and preventing the precise control of the concrete discharge. One-way valves 11 are set at both ends of the connecting frame 10 away from the serpentine tube 7. The design of the one-way valve 11 can control the direction of airflow and prevent backflow. A controller is set on one side of the box 1.

[0022] In this invention, the user places multiple sets of solenoid valves 5, which are connected to the cylinder of the mixing plant, inside the housing 1. The user then activates the heating wire 14 and its corresponding auxiliary fan 13 via a controller. The heating wire 14 heats the air, and the auxiliary fan 13 provides airflow, allowing the hot air to be rapidly introduced into the serpentine tube 7 after acceleration via the venturi tube 12. This heats the serpentine tube 7, providing initial heating to the interior of the housing 1. The hot air then circulates within the serpentine tube 7 and is transported via the vertical pipe 15 to multiple sets of connecting pipes 16. The hot air is then sprayed into multiple locations within the housing 1 through these connecting pipes, rapidly maintaining a certain temperature inside the housing 1. Simultaneously, the temperature sensor 4 monitors the temperature inside the housing 1 in real time. If the temperature is too high... When the temperature is high, the user activates the electric push rod 19 via the controller. The electric push rod 19 moves the sealing cylinder 17 upward until the vent 18 is fully exposed. At this time, the controller activates the exhaust fan 20, which quickly extracts heat from the chamber 1. Meanwhile, the heating wire 14 and its corresponding auxiliary fan 13 are turned off, and another set of auxiliary fans 13 are turned on. This allows cold air from the outside to be quickly introduced into the serpentine tube 7 and the chamber 1, pre-cooling the serpentine tube 7. The serpentine tube 7 is then neutralized with the hot air inside the chamber 1, causing the chamber 1 to cool down rapidly. This effectively ensures that the chamber 1 maintains a suitable temperature, which in turn keeps the solenoid valve 5 at a suitable temperature. This effectively prevents moisture in the air from condensing and affecting the sensitivity of the solenoid valve 5.

[0023] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A solenoid valve antifreeze device for a mixing plant, comprising a housing (1), characterized in that: A bracket is fixed on the right side of the inner cavity of the box (1), and multiple sets of solenoid valves (5) are arranged on the left side of the bracket along the vertical direction. Each set of solenoid valves (5) has a connecting air pipe (6) at both ends, and one end of the connecting air pipe (6) passes through the box (1) and extends to the front. Placement slots (3) are opened on both sides of the box (1). Fixing frames (2) covering the placement slots (3) are fixed on both sides of the box (1). Multiple sets of temperature sensors (4) are arranged inside the box (1). Antifreeze components are arranged on the box (1).

2. The antifreeze device for the solenoid valve in a mixing plant according to claim 1, characterized in that, The antifreeze assembly includes a serpentine tube (7) fixed in each set of placement slots (3). One end of each set of serpentine tubes (7) passes through a fixing frame (2) and is connected to a vertical tube (15) located on the back of the box (1). Each set of vertical tubes (15) is connected in sequence along the vertical direction to multiple sets of connecting pipes (16) that are connected to the box (1). Two sets of fixing cylinders (8) are symmetrically fixed in the left and right direction on the back of the top of the box (1). The front of one set of fixing cylinders (8) is connected to a square box (9) whose bottom is fixed on the box (1). Multiple sets of heating wires (14) are arranged in sequence along the vertical direction inside the square box (9). The front of the other set of fixing cylinders (8) and the square box (9) is connected to a connecting frame (10), and the other end of the serpentine tube (7) passes through the fixing frame (2). 2) Connected to the connecting frame (10), the connecting frame (10) and the serpentine tube (7) are provided with a venturi tube (12), the back of the inner cavity of each set of fixed cylinders (8) is fixed with an auxiliary fan (13), the two sides of the top of the box (1) are symmetrically connected with exhaust pipes along the front and back direction, and each set of exhaust pipes is inserted with a sealing cylinder (17), the bottom of the surface of each set of sealing cylinders (17) is evenly opened with multiple sets of air outlet holes (18), the bottom of the inner cavity of each set of sealing cylinders (17) is embedded with an exhaust fan (20), the top of the two sets of sealing cylinders (17) are close to each other and a docking plate (21) is fixed, the two sides of the top of the box (1) are fixed with electric push rods (19) and the piston rod of the electric push rod (19) is fixed on the docking plate (21).

3. The antifreeze device for the solenoid valve in a mixing plant according to claim 1, characterized in that, The number of temperature sensors (4) is at least two sets, and multiple sets of temperature sensors (4) are respectively set on one side of the bottom and one side of the top of the back of the box (1).

4. The antifreeze device for the solenoid valve in a mixing plant according to claim 2, characterized in that, Each set of fixed cylinders (8) has an isolation filter screen embedded on the back of its inner cavity, which is used in conjunction with the auxiliary fan (13).

5. The antifreeze device for the solenoid valve in a mixing plant according to claim 2, characterized in that, One-way valves (11) are provided at both ends of the connecting frame (10) away from the serpentine tube (7).

6. The antifreeze device for the solenoid valve of the mixing plant according to claim 2, characterized in that, Each set of vertical pipes (15) has at least five connecting pipes (16), with four sets of connecting pipes (16) tilted inwards and the vertical pipes (15) arranged in an alternating pattern.

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