A heat retaining device for a valve

Abstract

The utility model relates to fire fighting technical field especially, it is a kind of heat preservation device for valve, its structure includes: the heat preservation box for placing valve, the utility model only needs to open the front door or rear door when overhauling, can overhaul valve body whole, need not split box, shorten the time of overhauling, greatly improve maintenance efficiency, while integral box structure eliminates the splicing seam of traditional split box, need not additional sealing treatment to splicing seam, both reduce production procedure, also reduce manufacturing cost, while fundamentally avoid the problem of cold air infiltration at splicing seam, guarantee heat preservation effect, the annular opening formed by the cooperation of plugboard and box fixed pipeline accurately, enhance heat preservation sealing property, and integral box interior space is continuous without splicing, facilitate electric heat tracing band to be overall laid according to preset path, simplify installation process, further improve the practicability and reliability of device.

Description

Technical Field

[0001] This utility model relates to the field of fire protection technology, and in particular to a heat preservation device for valves. Background Technology

[0002] Deluge valves are widely used in fire extinguishing systems such as deluge, water mist, and water curtain. They are fire control valves that can be opened remotely and manually in emergencies and can also trigger an alarm. They are important control valves in deluge, water mist, and water curtain fire extinguishing systems. In the frigid regions of northern my country, high-altitude and low-temperature areas, or outdoor deluge valve assemblies, the water inside the valve body and the water accumulation in the connecting pipes are prone to freezing and expansion due to the continuous winter ambient temperature below 0°C. This can lead to malfunctions such as deformation of the valve body sealing surface, valve disc jamming, and pipe cracking. Therefore, reliable low-temperature insulation protection is required for deluge valves.

[0003] For example, the patent document with publication number CN205424075U discloses a deluge alarm valve assembly box, which mainly consists of a temperature sensor, electric heat tracing, solenoid valve, pressure switch, hydraulic alarm bell, lighting, fire signal butterfly valve, box components, control panel, exhaust fan, insulation layer, pressure sensor, deluge alarm valve, and limit switch; the inner side is inlaid with insulation layer, the control panel is mounted on the panel, the top is equipped with lighting, the right side is installed with exhaust fan, and the left side is installed with hydraulic alarm bell and temperature sensor;

[0004] For example, patent document CN220102223U discloses a valve insulation box. The insulation box can be installed outside the valve body and a sealed cavity can be formed between the insulation box and the valve. The insulation box includes two half-boxes that are interlocked with each other. Multiple openings are formed at the connection between the two half-boxes. The size of the openings matches the connection end of the valve. The insulation box is also provided with an inlet and an outlet for circulating heat exchange medium into the insulation box.

[0005] In practical applications, the following shortcomings still exist: Existing deluge valve insulation boxes mostly adopt a split structure with two boxes assembled together. When replacing parts or disassembling the deluge valve for maintenance, the two boxes must be separated, which is cumbersome and time-consuming, seriously reducing maintenance efficiency. In addition, to prevent cold air from seeping in, the joint between the two boxes needs to be sealed separately, which not only increases the production process and assembly time, but also significantly increases the sealing area formed by the joint, resulting in higher production costs. At the same time, when electric heating tape is installed inside the box, it is necessary to adapt to the split structure for segmented wiring or cross-joint installation, which increases the complexity of wiring. Utility Model Content

[0006] This invention provides a heat preservation device for valves, which can effectively solve the above-mentioned problems.

[0007] This utility model is implemented as follows:

[0008] A valve insulation device includes an insulation box for housing the valve, a front door and a rear door movably connected to the front and rear sides of the insulation box, and pluggable insert plates at the upper and lower ends of the insulation box near the rear door. The insert plate has a first semi-annular opening at the end facing the front door, and a second semi-annular opening corresponding to the first semi-annular opening at the insertion end of the insulation box connected to the insert plate. When the insert plate is fully inserted, the first semi-annular opening and the second semi-annular opening form an opening that matches the size of the valve body pipe.

[0009] As a further improvement, the insert plate is provided with limiting grooves on the left and right sides, and the insertion end of the insulation box is provided with limiting tracks that cooperate with the limiting grooves on both sides.

[0010] As a further improvement, several electric heating cable fixing frames are evenly spaced on the inner walls of the left and right sides of the insulated box.

[0011] As a further improvement, the bottom and top of the insulation box are provided with system mounting brackets for fixing the valve body.

[0012] As a further improvement, a porthole is provided on the front cargo door.

[0013] As a further improvement, the insulated box body is composed of a three-dimensional frame and insulated panels spliced ​​on the three-dimensional frame. The front and rear doors are also made of insulated panels. The insulated panels are composed of inner and outer panels and have an insulation layer in the middle, which is filled with insulation material.

[0014] As a further improvement, the top of the insulated box is provided with box hanging ears, which are respectively fixed to the left and right sides of the first semi-annular opening on the top of the insulated box.

[0015] As a further improvement, the bottom of the insulated box is evenly provided with four fixed feet.

[0016] The beneficial effects of this utility model are:

[0017] This utility model adopts an integrated insulation box structure with detachable insert plates at the top and bottom of the back to fix the deluge valve and its overall structure. During maintenance, only the front or rear door needs to be opened to inspect the entire valve body without disassembling the box, shortening maintenance time and significantly improving maintenance efficiency. At the same time, the integrated box structure eliminates the splicing seams of traditional split boxes, eliminating the need for additional sealing treatment of the splicing seams, reducing production steps and manufacturing costs, and fundamentally avoiding the problem of cold air seepage at the splicing seams, ensuring the insulation effect. The annular opening formed by the insert plates and the box body precisely fixes the pipes, enhancing the insulation and sealing performance. Moreover, the continuous and seamless internal space of the integrated box facilitates the overall layout of the electric heating tape along a preset path, simplifying the installation process and further improving the practicality and reliability of the device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a heat preservation device for valves provided by this utility model;

[0020] Figure 2 This is a three-dimensional assembly structure diagram of the heat preservation device provided by this utility model;

[0021] Figure 3 This utility model provides Figure 2 Enlarged structural diagram of A in the middle;

[0022] Figure 4 This is a three-dimensional assembly structure diagram of the heat preservation device provided by this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the insert plate provided by this utility model;

[0024] Figure 6 This utility model provides Figure 4 Enlarged structural diagram of B;

[0025] Figure 7 This is a side cross-sectional view of the insulation board provided by this utility model.

[0026] In the diagram: 1. Insulated box; 2. Front door; 3. Rear door; 4. Insert plate; 41. Limiting groove; 11. Limiting rail; 5. Electric heating cable fixing bracket; 6. System fixing bracket; 21. Porthole; 7. Box hanging lug; 8. Fixed support leg. Detailed Implementation

[0027] All embodiments of this utility model are intended to fall within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating that the purpose, technical solution, and advantages of the method are clearer. The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort indicate or imply the relative importance of the indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] Existing deluge valve insulation boxes mostly adopt a split structure of two boxes assembled together. When replacing components or disassembling the deluge valve for maintenance, the two boxes must be separated, which is cumbersome and time-consuming, seriously reducing maintenance efficiency. Furthermore, to prevent cold air from seeping in, the joint between the two boxes needs to be sealed separately, which not only increases production steps and assembly time, but also significantly increases the sealing area formed by the joint, resulting in higher production costs. At the same time, when installing electric heating tape inside the box, it is necessary to adapt to the split structure for segmented wiring or installation across joints, increasing wiring complexity. To solve the above technical problems, this paper proposes the following technical solution:

[0030] Reference Figures 1-7As shown, a valve insulation device includes an insulation box 1 for placing the valve. The insulation box 1 is movably connected to a front door 2 and a rear door 3 on its front and rear sides, respectively. The upper and lower ends of the insulation box 1 near the rear door 3 are respectively provided with pluggable insert plates 4. The end of the insert plate 4 facing the front door 2 has a first semi-annular opening. The insertion end of the insulation box 1 connected to the insert plate 4 has a second semi-annular opening corresponding to the first semi-annular opening. When the insert plate 4 is fully inserted, the first semi-annular opening and the second semi-annular opening form an opening that matches the size of the valve body pipe.

[0031] First, assemble the deluge valve and corresponding maintenance valve, inlet pipe and outlet pipe into a whole using bolts and nuts. Then, place this whole structure inside the insulation box 1. Slots are formed at the upper and lower ends of the insulation box near the rear door 3. The slots are adapted to the insert plates 4. Next, insert the two insert plates 4 into the slots of the insulation box 1 respectively, so that the first semi-annular opening and the second semi-annular opening are connected to form a complete through hole. At this time, the inlet pipe and outlet pipe of the whole structure pass through the complete through hole at the upper and lower ends respectively, and the insert plates and the box together achieve sealing and limiting. Finally, close and lock the front door and the rear door to complete the sealing of the insulation box.

[0032] When maintenance is required, simply open the front or rear door to operate the valve assembly inside the box directly without disassembling the box, which greatly shortens maintenance time and reduces the difficulty of operation. When it is necessary to replace the deluge valve and its overall structure, which requires the removal of the insulation box, simply open the rear door and pull the insert plate out of the slot to separate the first semi-annular opening from the second semi-annular opening. The entire valve body structure can then be removed by sliding it radially without disassembling the box or disturbing the pipe connections, which greatly improves the replacement efficiency and ease of operation.

[0033] This application adopts an integrated insulation box 1 with detachable insert plates 4 at the top and bottom of the back to fix the deluge valve and its overall structure. During maintenance, only the front or rear door needs to be opened to inspect the valve body as a whole, without disassembling the box, thus shortening maintenance time and significantly improving maintenance efficiency. At the same time, the integrated box structure eliminates the splicing seams of traditional split boxes, eliminating the need for additional sealing treatment of the splicing seams, reducing production steps and manufacturing costs, and fundamentally avoiding the problem of cold air seepage at the splicing seams, ensuring the insulation effect. The annular opening formed by the insert plates and the box body precisely fixes the pipes, enhancing the insulation and sealing performance. Moreover, the continuous and seamless internal space of the integrated box facilitates the overall layout of the electric heating tape along a preset path, simplifying the installation process and further improving the practicality and reliability of the device.

[0034] The front door 2 and the rear door 3 are connected to the two sides of the insulation box 1 by hinges or latches on one side to ensure flexible opening and closing and tight sealing, and are fixed by buckles or locking devices on the other side; the insert plate 4 is fitted with the insulation box 1 with a clearance to ensure a firm connection and easy disassembly, which facilitates quick maintenance.

[0035] The insert plate 4 is provided with limiting grooves 41 on both the left and right sides, and the insulation box 1 has limiting rails 11 on both sides of the insertion end that cooperate with the limiting grooves 41. The limiting grooves 41 extend from one end of the second semi-annular opening of the insert plate 4 to the other end. During installation, the limiting rails are embedded in the limiting grooves 41 to guide the insert plate 4 to be inserted smoothly and limit its lateral displacement, ensuring that the insert plate does not shift during installation and improving assembly accuracy and connection stability.

[0036] The inner walls of the left and right sides of the insulated box 1 are evenly spaced with several electric heating cable fixing frames 5. During assembly, the electric heating cables are arranged according to the pre-set path of the electric heating cable fixing frames, and the corresponding temperature control box is fixed on the outside of the box. The electric heating cables are then used to evenly heat the inside of the box. Combined with the real-time monitoring and temperature adjustment by the temperature control box, the deluge valve and pipeline are always kept in the anti-freeze zone in the low-temperature environment, which improves the safety and stability of the system operation.

[0037] Meanwhile, the electric heat tracing cable fixing bracket 5 adopts a C-shaped structure with a groove formed on the inner side for placing the electric heat tracing cable, which facilitates the neat laying and firm fixing of the electric heat tracing cable; at the same time, the electric heat tracing cable fixing bracket 5 is arranged in parallel and symmetrically distributed on both sides of the inside of the box to ensure that the electric heat tracing cable is evenly distributed along the pipe axis and improves the heat conduction efficiency.

[0038] The insulation box 1 is equipped with system mounting brackets 6 at both the bottom and top for fixing the valve body. The system mounting brackets 6 have an L-shaped structure and waist-shaped holes at both ends. In use, after the valve body is placed inside the insulation box, the inlet and outlet pipes of the valve body are clamped by U-shaped clamps. At the same time, the two ends of the U-shaped clamps pass through the waist-shaped holes at both ends of the system mounting brackets 6 and are locked with nuts to achieve a stable connection between the valve body and the box. This prevents displacement or loosening of the connection due to vibration during operation, further improves the stability of the overall structure of the device, and ensures that the deluge valve can operate reliably for a long time under complex working conditions.

[0039] The front door 2 is provided with a porthole 21. The porthole 21 is made of double-layer explosion-proof glass, which has good light transmission and pressure resistance, making it easy to observe the operation status of the valves inside the box in real time, while preventing external impacts from damaging the inside of the box.

[0040] The insulated box 1 is composed of a three-dimensional frame and insulated panels spliced ​​on the three-dimensional frame. The front door 2 and the rear door 3 are also made of insulated panels. The insulated panels are composed of inner and outer panels and have an insulation layer in the middle, which is filled with insulation material. The inner and outer panels are made of carbon steel or stainless steel, and the insulation material is rock wool, which has good insulation and fire resistance, effectively reduces heat loss, and is suitable for long-term operation in low temperature or harsh environments.

[0041] The top of the insulation box 1 is provided with a box hanging lug 7. One end of the box hanging lug 7 is fixedly connected to the insulation box 1, and the other end extends outward and is provided with an installation hole. During installation, the valve body pipe at the top of the box can be fastened by the U-shaped lifting lug. At the same time, the box hanging lug 7 is connected and fixed to the U-shaped lifting lug by bolts and nuts to ensure that the insulation box 1 and the valve body pipe system form a stable overall connection, realize the rigid connection between the box and the pipe, and avoid structural loosening caused by external loads or vibrations.

[0042] The bottom of the insulation box 1 is evenly provided with four fixed support legs 8, which facilitates production and installation, keeps the box away from the ground to avoid bumps and scratches, and maintains ventilation and moisture prevention between the box and the ground to prevent liquid accumulation and corrosion at the bottom, thus extending the service life of the equipment; the fixed support legs 8 are connected to the insulation box 1 by welding.

[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heat insulation device for valves, comprising: The insulated box (1) for placing valves is characterized in that: the insulated box (1) is movably connected to the front and rear sides of the front and rear sides respectively, and the insulated box (1) has pluggable insert plates (4) at the upper and lower ends near the rear door (3) respectively. The insert plate (4) has a first semi-annular opening at the end facing the front door (2), and the insertion end of the insulated box (1) connected to the insert plate (4) has a second semi-annular opening corresponding to the first semi-annular opening. When the insert plate (4) is fully inserted, the first semi-annular opening and the second semi-annular opening form an opening that matches the size of the valve body pipe.

2. The heat preservation device for valves as described in claim 1, characterized in that: The insert plate (4) is provided with limiting grooves (41) on the left and right sides, and the insertion end of the heat preservation box (1) is provided with limiting tracks (11) that cooperate with the limiting grooves (41) on both sides.

3. The heat preservation device for valves as described in claim 2, characterized in that: The inner walls of the left and right sides of the insulated box (1) are provided with several electric heating cable fixing frames (5) at equal intervals.

4. The heat preservation device for valves as described in claim 3, characterized in that: The insulation box (1) is equipped with system mounting brackets (6) for fixing the valve body at both the bottom and top.

5. A heat preservation device for valves as described in claim 3, characterized in that: The front door (2) is provided with a porthole (21).

6. A heat preservation device for valves as described in any one of claims 1-5, characterized in that: The insulated box (1) is composed of a three-dimensional frame and an insulated board spliced ​​on the three-dimensional frame. The front door (2) and the rear door (3) are also made of insulated board. The insulated board is composed of inner and outer panels and has an insulation layer in the middle. The insulation layer is filled with insulation material.

7. A valve insulation device as described in claim 6, characterized in that: The top of the insulated box (1) is provided with box hanging ears (7), which are fixed to the left and right sides of the first semi-circular opening at the top of the insulated box (1).

8. A valve insulation device as described in claim 7, characterized in that: The bottom of the insulated box (1) is evenly provided with four fixed feet (8).

Images