An overload early warning mechanism of a circulating pump power cabinet for a large heating device

Abstract

The utility model discloses a kind of overloading early warning mechanisms of circulating pump power cabinet for large heating equipment, including cabinet, the top of the cabinet is provided with ventilation mechanism, the inside of the cabinet is installed with support plate, the inside of the support plate is opened with cavity, the inside of the cavity is installed with current transformer and temperature sensor, the bottom of the support plate is installed with abutting mechanism;The ventilation mechanism includes blowing plate and first vent, the rear side and both sides of the cabinet are opened in the first vent, the bottom of the blowing plate is evenly provided with blowing hole. By fixing support strip inside the cabinet, support plate is slidably installed inside the cabinet by support strip, and current transformer and temperature sensor are arranged in the cavity inside support plate, so that the operation of internal components of cabinet can be warned, and alarm is performed in cooperation with controller, buzzer and alarm lamp.

Description

Technical Field

[0001] This utility model relates to the field of circulating pump technology for heating equipment, and in particular to an overload warning mechanism for the power cabinet of a circulating pump for large heating equipment. Background Technology

[0002] Circulating pumps are installed at heating stations (heating centers), heat sources, or cold sources within the closed loop of heating or air conditioning water systems. The circulating pump circulates water continuously within the system, overcoming loop resistance losses; hence the name "circulating pump." Circulating pumps used in large-scale heating equipment must meet technical requirements such as high flow rate, high head, and continuous stable operation.

[0003] The existing overload warning mechanism for circulating pump power cabinets used in large-scale heating equipment fails to monitor the temperature and current of the internal components, which generate high temperatures and excessive currents. Furthermore, the sensitivity of the temperature and current monitoring structure decreases over time, making it difficult to disassemble, replace, and maintain, thus hindering the timely warning and alarm function when the circulating pump power cabinet experiences an overload.

[0004] Therefore, an overload warning mechanism for a circulating pump power cabinet for large heating equipment is provided. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing an overload warning mechanism for a circulating pump power cabinet in large heating equipment. This mechanism allows for the installation of temperature sensors and current transformers inside the cavity to monitor the temperature and current within the cabinet. It also facilitates disassembly, replacement, and maintenance, ensuring that the circulating pump power cabinet provides sensitive early warning alarms when overloaded.

[0006] In view of this, the present invention provides an overload warning mechanism for a circulating pump power cabinet for a large heating equipment, including a cabinet body, a ventilation mechanism at the top of the cabinet body, a support plate installed inside the cabinet body, a cavity in the middle of the support plate, a current transformer and a temperature sensor installed inside the cavity, and an abutment mechanism installed at the bottom of the support plate.

[0007] The ventilation mechanism includes a blower plate and a first ventilation hole. The first ventilation hole is opened on the rear and sides of the cabinet. The blower plate has blower holes evenly arranged at the bottom end. It is installed inside the top of the cabinet and a blower is installed at the top. The blower is installed in the middle of the top of the cabinet.

[0008] Preferably, the cabinet is vertically arranged, with a cabinet door installed on its front. The support plate is a rectangular plate structure and is horizontally arranged. Second ventilation holes are evenly opened on its upper and lower surfaces. The second ventilation holes are connected to the cavity, which is a rectangular cavity structure.

[0009] Preferably, support bars are fixed on both sides of the inside of the cabinet, and a limit baffle is fixed to the inner end of the support bar, and the support bar is horizontally arranged.

[0010] Preferably, the support plate has snap-fit ​​grooves on both sides, the snap-fit ​​grooves have a C-shaped cross-section and are slidably snapped onto the outside of the support strip, the snap-fit ​​grooves are located on both sides of the cavity, the limiting baffle abuts against the inner end of the support plate, and a gap is provided between the support plate and the inner side of the cabinet.

[0011] Preferably, the abutting mechanism includes an abutting plate, which is elastically installed at the bottom of the cavity, with its top end abutting against the bottom of the temperature sensor and the current transformer, and is horizontally positioned.

[0012] Preferably, a connecting rod is fixed to the bottom end of the abutment plate, the connecting rod slides through the second ventilation hole and is vertically arranged.

[0013] Preferably, a base plate is fixed to the bottom end of the connecting rod, and a tension spring is sleeved on the bottom surface of the connecting rod. The upper and lower ends of the tension spring are respectively connected to the bottom end of the support plate and the top end of the base plate.

[0014] Preferably, a controller is installed on the top side of the cabinet, a buzzer is installed on the side of the controller, and an alarm light is installed at one corner of the top of the cabinet. The alarm light, temperature sensor, and current transformer are all electrically connected to the controller via wires.

[0015] Compared with the prior art, this utility model provides an overload warning mechanism for the power cabinet of a circulating pump in a large heating equipment, which has the following beneficial effects:

[0016] This utility model uses fixed support bars on both sides inside the cabinet. The support plate is slidably installed inside the cabinet through the support bars. A current transformer and a temperature sensor are installed in the cavity inside the support plate. This allows for early warning of the operation of the components inside the cabinet, and the system works in conjunction with a controller, buzzer, and alarm light to provide an alarm.

[0017] This utility model provides a first ventilation hole on both sides and the rear of the cabinet, a second ventilation hole and a cavity on the support plate, and a blower plate installed at the top inside the cabinet. As a result, the blower blows air into the cabinet through the blower plate and the ventilation hole, and improves the air circulation inside and outside the cabinet through the second ventilation hole, the cavity and the first ventilation hole, which facilitates rapid heat dissipation of the internal components.

[0018] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an overload warning mechanism for a circulating pump power cabinet of a large heating equipment proposed in this utility model.

[0020] Figure 2 A schematic diagram of the internal structure of the overload warning mechanism of the power cabinet for a circulating pump in a large heating equipment proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the support plate structure of the overload warning mechanism of the power cabinet of a circulating pump for a large heating equipment proposed in this utility model.

[0022] Figure 4 This is a schematic diagram of the contact mechanism of an overload warning mechanism for a circulating pump power cabinet for a large heating equipment, as proposed in this utility model.

[0023] In the diagram: 1. Cabinet; 2. Blower; 3. Alarm light; 4. Controller; 5. Buzzer; 6. First ventilation hole; 7. Cabinet door; 8. Support bar; 9. Cavity; 10. Support plate; 11. Temperature sensor; 12. Current transformer; 13. Base plate; 14. Second ventilation hole; 15. Snap-fit ​​groove; 16. Tension spring; 17. Connecting rod; 18. Abutment plate; 19. Air vent; 20. Air vent plate; 21. Limiting baffle. Detailed Implementation

[0024] 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.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Example 1: An overload warning mechanism for a circulating pump power cabinet in a large heating equipment, such as... Figures 1-4 As shown, the cabinet includes a cabinet 1, a ventilation mechanism at the top of the cabinet 1, a support plate 10 installed inside the cabinet 1, a cavity 9 in the middle of the support plate 10, a current transformer 12 and a temperature sensor 11 installed inside the cavity 9, and an abutment mechanism installed at the bottom of the support plate 10.

[0027] The ventilation mechanism includes a blower plate 20 and a first ventilation hole 6. The first ventilation hole 6 is opened on the rear and sides of the cabinet 1. The bottom end of the blower plate 20 is evenly provided with blower holes 19. It is installed inside the top of the cabinet 1. A blower 2 is installed on the top of the cabinet 1. The blower 2 is installed in the middle of the top of the cabinet 1.

[0028] The cabinet 1 is vertically arranged, with a cabinet door 7 installed on its front. The support plate 10 is a rectangular plate structure and is horizontally arranged. Second ventilation holes 14 are evenly opened on its upper and lower surfaces. The second ventilation holes 14 are connected to the cavity 9, which is a rectangular cavity structure.

[0029] Support bars 8 are fixed on both sides of the inside of the cabinet 1. Limiting baffles 21 are fixed at the inner end of the support bars 8. The support bars 8 are set horizontally.

[0030] The support plate 10 has snap-fit ​​grooves 15 on both sides. The cross-section of the snap-fit ​​grooves 15 is C-shaped and is slidably snapped onto the outside of the support bar 8. The snap-fit ​​grooves 15 are located on both sides of the cavity 9. The limiting baffle 21 abuts against the inner end of the support plate 10. The gap between the support plate 10 and the inner side of the cabinet 1 is set.

[0031] In use, by setting first ventilation holes 6 on both sides and the rear side of the cabinet 1, setting second ventilation holes 14 and cavities 9 on the support plate 10, and installing a blower plate 20 at the top inside the cabinet 1, the blower 2 blows air into the cabinet 1 through the blower plate 20 and the blower holes 19, and improves the air circulation inside and outside the cabinet 1 through the second ventilation holes 14, cavities 9 and the first ventilation holes 6, which facilitates the rapid heat dissipation of the internal components of the cabinet 1.

[0032] Example 2: An overload warning mechanism for a circulating pump power cabinet in a large heating equipment, such as... Figures 1-4 As shown, the abutment mechanism includes an abutment plate 18, which is elastically installed at the bottom of the cavity 9. Its top end abuts against the bottom of the temperature sensor 11 and the current transformer 12, and is horizontally positioned.

[0033] A connecting rod 17 is fixed to the bottom end of the abutment plate 18. The connecting rod 17 slides through the second ventilation hole 14 and is set vertically.

[0034] The bottom end of the connecting rod 17 is fixed with a base plate 13, and a tension spring 16 is sleeved on the bottom end of the surface of the connecting rod 17. The upper and lower ends of the tension spring 16 are respectively connected to the bottom end of the support plate 10 and the top end of the base plate 13.

[0035] A controller 4 is installed on the top side of the cabinet 1. A buzzer 5 is installed on the side of the controller 4. An alarm light 3 is installed at one corner of the top of the cabinet 1. The alarm light 3, temperature sensor 11 and current transformer 12 are all electrically connected to the controller 4 through wires.

[0036] In use, by fixing support bars 8 on both sides inside the cabinet 1, the support plate 10 is slidably installed inside the cabinet 1 through the support bars 8, and a current transformer 12 and a temperature sensor 11 are set in the cavity 9 inside the support plate 10, so that the operation of the components inside the cabinet 1 can be warned, and alarms can be set in conjunction with the controller 4, the buzzer 5 and the alarm light 3.

[0037] 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. An overload early warning mechanism for circulating pump power cabinet of large heating equipment, comprising a cabinet body (1), characterized in that: The top of the cabinet (1) is provided with a ventilation mechanism, and a support plate (10) is installed inside the cabinet (1). A cavity (9) is opened in the middle of the support plate (10). A current transformer (12) and a temperature sensor (11) are installed inside the cavity (9). An abutment mechanism is installed at the bottom of the support plate (10). The ventilation mechanism includes a blower plate (20) and a first ventilation hole (6). The first ventilation hole (6) is opened on the rear and sides of the cabinet (1). The bottom end of the blower plate (20) is evenly provided with blower holes (19), which are installed at the top of the cabinet (1). A blower (2) is installed at the top of the cabinet (1). The blower (2) is installed at the middle of the top of the cabinet (1).

2. The overload warning mechanism for a circulating pump power cabinet for a large heating equipment according to claim 1, characterized in that, The cabinet (1) is vertically arranged, and a cabinet door (7) is installed on its front. The support plate (10) is a rectangular plate structure and is horizontally arranged. Second ventilation holes (14) are evenly opened on its upper and lower surfaces. The second ventilation holes (14) are connected to the cavity (9). The cavity (9) is a rectangular cavity structure.

3. The overload warning mechanism for a circulating pump power cabinet for a large heating equipment according to claim 1, characterized in that, The cabinet (1) has support bars (8) fixed on both sides inside. The inner end of the support bars (8) is fixed with a limit baffle (21). The support bars (8) are set horizontally.

4. The overload warning mechanism for a circulating pump power cabinet for a large heating equipment according to claim 3, characterized in that, The support plate (10) has snap-fit ​​grooves (15) on both sides. The cross-section of the snap-fit ​​groove (15) is C-shaped and it is slidably snapped onto the outside of the support bar (8). The snap-fit ​​groove (15) is located on both sides of the cavity (9). The limiting baffle (21) abuts against the inner end of the support plate (10). The support plate (10) and the inner side of the cabinet (1) are separated by a gap.

5. The overload warning mechanism for a circulating pump power cabinet for a large heating equipment according to claim 2, characterized in that, The abutting mechanism includes an abutting plate (18), which is elastically installed at the bottom of the cavity (9), with its top end abutting against the bottom of the temperature sensor (11) and the current transformer (12), and is horizontally positioned.

6. The overload warning mechanism for a circulating pump power cabinet for a large heating equipment according to claim 5, characterized in that, A connecting rod (17) is fixed to the bottom end of the abutment plate (18). The connecting rod (17) slides through the second ventilation hole (14) and is set vertically.

7. The overload warning mechanism for a circulating pump power cabinet for a large heating equipment according to claim 6, characterized in that, The bottom end of the connecting rod (17) is fixed with a base plate (13), and a tension spring (16) is sleeved on the bottom end of the surface of the connecting rod (17). The upper and lower ends of the tension spring (16) are respectively connected to the bottom end of the support plate (10) and the top end of the base plate (13).

8. The overload warning mechanism for a circulating pump power cabinet for a large heating equipment according to claim 1, characterized in that, A controller (4) is installed on the top side of the cabinet (1), a buzzer (5) is installed on the side of the controller (4), and an alarm light (3) is installed at one corner of the top of the cabinet (1). The alarm light (3), temperature sensor (11) and current transformer (12) are all electrically connected to the controller (4) through wires.

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