Automatic starting and stopping device for cooling water of pump

Abstract

The utility model discloses an automatic pump cooling water starting and stopping device which comprises a pump body, a cooling water pipe is arranged on one side of the pump body, a valve A and a valve B are arranged on the two sides of the outer side of the cooling water pipe, and an electromagnetic valve is arranged in the middle of the outer side of the cooling water pipe. Through mutual cooperation of the sealing plug, the circulation opening, the adjusting rod, the electric contact block A, the electric contact block B, the motor, the gear A, the gear B and the threaded rod, when the device controls the adjusting rod to move upwards to open the electromagnetic valve, the electric contact block A can be synchronously driven to make contact with the electric contact block B, the pump body is automatically started to run, and when the electromagnetic valve is closed, the pump body is automatically started to run. And the electric contact block A and the electric contact block B can also be automatically separated to close the pump body, so that the interlocking control on the start and stop of the electromagnetic valve and the pump body is realized, the purposes of starting and stopping water of the pump and stopping water of the pump are achieved, and the operation convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pump cooling, in particular to an automatic start-stop device for pump cooling water. Background Art

[0002] The mechanical seal of the pump will heat up during operation. If the temperature is too high, it will often cause the mechanical seal of the pump to wear and damage. Therefore, most pumps need cold water to cool the mechanical seal when in use to protect the mechanical seal.

[0003] The existing patent with the authorization announcement number "CN214693524U" discloses a cooling water supply device for a mechanical seal of a refining device pump, including a water tank storing desalted water, the water tank is connected to a desalted water pump through a No. 1 pipeline, the desalted water pump is connected to a cooler through a No. 2 pipeline, and the desalted water pump is connected to a user end through a No. 4 pipeline, thereby avoiding the short circuit of the equipment due to small water consumption and small flow area, the decrease of heat exchange effect, and even over-temperature, and can more cleanly and stably supply cooling water to the pump and motor bearings, seals, and coolers of the mechanical seal system;

[0004] However, the device has the following shortcomings: for pumps used intermittently, the cooling water is always on when the pump is not running, which greatly wastes water resources, or each time the pump is started, the cooling water is turned on on site before the pump is started, which is time-consuming and laborious for operation and control. At the same time, the pump cooling water is often forgotten to be turned on, causing damage to the mechanical seal of the pump. The above device has a poor control effect on the start and stop of the pump cooling water, and fails to achieve the control effect of turning on the water when the pump is started and stopping the water when the pump is stopped. Summary of the invention

[0005] The utility model aims to provide a pump cooling water automatic start and stop device to solve the existing problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a pump cooling water automatic start-stop device, comprising a pump body, a cooling water pipe is arranged on one side of the pump body, valves A and valves B are arranged on both sides of the outer side of the cooling water pipe, and a solenoid valve is arranged in the middle of the outer side of the cooling water pipe;

[0007] The solenoid valve comprises a valve body, an adjusting box is arranged on the top of the valve body, a flow port is opened inside the valve body, a motor is arranged on one side of the top of the adjusting box, a gear A is arranged on the output end of the motor, a threaded rod is sleeved on the middle of the top of the adjusting box, a gear B meshing with the gear A is arranged on the top of the outer side of the threaded rod, an adjusting rod is threadedly connected to the outer side of the threaded rod, and the bottom of the adjusting rod extends to the inside of the valve body and is provided with a sealing plug matched with the flow port;

[0008] A mounting plate is provided at the top of the outer side of the adjusting rod, an electric contact block A is provided on one side of the top of the mounting plate, a slide groove is provided in the middle of one side inside the adjusting box, a slider is slidably connected to the inner side of the slide groove, a spring is provided on the top of the slider, a movable plate is provided on one side of the slider, and an electric contact block B matching with the electric contact block A is provided at the bottom of the movable plate.

[0009] Preferably, a movable rod connected to the mounting plate is sleeved on one side of the top of the regulating box, and a scale bar is provided on the top of one side of the movable rod, and a pointer is provided on one side of the top of the regulating box close to the movable rod to facilitate control of the switch size of the solenoid valve.

[0010] Preferably, a mounting groove is provided on one side of the top of the regulating box, and the motor is located inside the mounting groove to provide an installation space for the motor.

[0011] Preferably, two groups of sealing rings cooperating with the adjusting rod are arranged on the top of the inner side of the valve body to ensure the sealing performance of the valve body.

[0012] Preferably, one side of the cooling water pipe is connected to an external water source to provide cooling water flow to the pump body.

[0013] Preferably, the bottom of the spring is connected to the slider, and the top of the spring is connected to the top of the inner side of the slide groove, so as to facilitate the control of the electric contact block B to reset.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the pump cooling water automatic start and stop device;

[0015] 1. Through the cooperation between the sealing plug, the flow port, the adjusting rod, the electric contact block A, the electric contact block B, the motor, the gear A, the gear B and the threaded rod, the device can synchronously drive the electric contact block A to contact with the electric contact block B when the control adjusting rod is moved upward to open the solenoid valve, and automatically start the pump body to run. When the solenoid valve is closed, the electric contact block A and the electric contact block B can also be automatically separated to close the pump body, realizing the interlocking control of the solenoid valve and the pump body to achieve the purpose of starting the pump when the water is on and stopping the pump when the water is off, thereby improving the convenience of operation;

[0016] 2. Through the cooperation between the movable plate, slider, spring, mounting plate, slide groove, motor, gear A and gear B, when the device controls the solenoid valve to open, the opening amplitude of the solenoid valve can be adjusted by observing the scale on the movable rod, so as to conveniently control the flow rate of water flow and achieve better cooling effect. In addition, the elastic force of the spring can ensure that the electric contact block B can remain connected with the electric contact block A during adjustment, and will not affect the start and stop control of the pump body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front cross-sectional view of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the solenoid valve of the utility model;

[0019] Figure 3 This is a front sectional view of the solenoid valve of the utility model;

[0020] Figure 4 For the utility model Figure 3 A schematic diagram of the enlarged structure of .

[0021] In the figure: 1. Pump body; 2. Valve A; 3. Solenoid valve; 31. Valve body; 32. Sealing plug; 33. Flow port; 34. Adjusting rod; 35. Electric contact block A; 36. Electric contact block B; 37. Movable plate; 38. Slider; 39. Spring; 310. Mounting plate; 311. Slide groove; 312. Adjusting box; 313. Motor; 314. Gear A; 315. Gear B; 316. Threaded rod; 4. Valve B; 5. Cooling water pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides an embodiment: a pump cooling water automatic start-stop device, comprising a pump body 1, a cooling water pipe 5 is arranged on one side of the pump body 1, one side of the cooling water pipe 5 is connected to an external water source, and is used to provide cooling water flow to the pump body 1, valves A2 and valve B4 are arranged on both sides of the outer side of the cooling water pipe 5, and a solenoid valve 3 is arranged in the middle of the outer side of the cooling water pipe 5;

[0024] The solenoid valve 3 comprises a valve body 31, two sets of sealing rings matched with the adjusting rod 34 are arranged at the top of the inner side of the valve body 31 to ensure the sealing inside the valve body 31, an adjusting box 312 is arranged at the top of the valve body 31, a flow port 33 is opened inside the valve body 31, a motor 313 is arranged at one side of the inner top of the adjusting box 312, a gear A314 is arranged at the output end of the motor 313, a threaded rod 316 is sleeved at the middle of the inner top of the adjusting box 312, a gear B315 meshing with the gear A314 is arranged at the top of the outer side of the threaded rod 316, the outer side of the threaded rod 316 is threadedly connected with the adjusting rod 34, the bottom of the adjusting rod 34 extends to the inner side of the valve body 31 and is provided with a sealing plug 32 matched with the flow port 33;

[0025] A mounting plate 310 is provided at the top of the outer side of the adjusting rod 34, an electric contact block A35 is provided on one side of the top of the mounting plate 310, a slide groove 311 is provided in the middle of one side inside the adjusting box 312, a slider 38 is slidably connected to the inner side of the slide groove 311, a spring 39 is provided at the top of the slider 38, a movable plate 37 is provided on one side of the slider 38, an electric contact block B36 matching with the electric contact block A35 is provided at the bottom of the movable plate 37, the bottom of the spring 39 is connected to the slider 38, and the top of the spring 39 is connected to the top of the inner side of the slide groove 311, so as to conveniently control the reset of the electric contact block B36.

[0026] Furthermore, a movable rod connected to the mounting plate 310 is sleeved on one side of the top of the adjusting box 312, and a scale bar is set on the top of one side of the movable rod. A pointer is set on the side of the top of the adjusting box 312 close to the movable rod. When the adjusting rod 34 moves up to open the flow port 33, the movable rod can be driven to move up. By observing the position of the scale bar on the movable rod indicated by the pointer, the opening size of the flow port 33 can be conveniently controlled to control the flow rate of the solenoid valve 3.

[0027] Furthermore, a mounting groove is provided on one side of the top of the regulating box 312 , and the motor 313 is located inside the mounting groove to provide a mounting space for the motor 313 .

[0028] Working principle: When the device is in use, valve B4 and valve A2 can be opened, and then the motor 313 can be started to run. The motor 313 can drive the gear A314, and then the gear A314 can drive the gear B315 to rotate the threaded rod 316. The threaded rod 316 can drive the adjusting rod 34 to move up, so that the adjusting rod 34 drives the sealing plug 32 to open the flow port 33. At this time, the adjusting rod 34 can drive the mounting plate 310 to move up, and then drive the electric contact block B36 through the mounting plate 310, so that the electric contact block A35 contacts the electric contact block B36. At this time, the pump body 1 can be automatically started to run, so as to achieve the effect of interlocking control, so that when the pump is turned on, cooling water can be automatically delivered to cool it, and then the external water flow can be delivered to the pump body 1 for cooling under the guidance of the cooling water pipe 5;

[0029] When the solenoid valve 3 is controlled to be opened, the flow rate of the water flow can be adjusted by controlling the upward movement of the adjusting rod 34, and the control can be conveniently performed by observing the scale on the movable rod. At this time, the electric contact block A35 can push the movable plate 37 to move under the guidance of the slider 38 to overcome the elastic force of the spring 39. Subsequently, when the solenoid valve 3 is closed, the adjusting rod 34 can be controlled to move downward. After the sealing plug 32 blocks the flow port 33, the electric contact block A35 can automatically separate from the electric contact block B36 to close the pump body 1, and at the same time, it can be driven to reset through the elastic force of the spring 39.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A pump cooling water automatic start-stop device, comprising a pump body (1), characterized in that: A cooling water pipe (5) is provided on one side of the pump body (1), valves A (2) and valves B (4) are provided on both sides of the outer side of the cooling water pipe (5), and a solenoid valve (3) is provided in the middle of the outer side of the cooling water pipe (5); The solenoid valve (3) comprises a valve body (31), a regulating box (312) is arranged at the top of the valve body (31), a flow port (33) is opened inside the valve body (31), a motor (313) is arranged on one side of the top of the regulating box (312), a gear A (314) is arranged at the output end of the motor (313), a threaded rod (316) is sleeved at the middle of the top of the regulating box (312), a gear B (315) meshing with the gear A (314) is arranged at the top of the outer side of the threaded rod (316), an regulating rod (34) is threadedly connected to the outer side of the threaded rod (316), and the bottom of the regulating rod (34) extends to the inside of the valve body (31) and is provided with a sealing plug (32) matching the flow port (33); A mounting plate (310) is arranged at the top of the outer side of the adjusting rod (34), an electric contact block A (35) is arranged on one side of the top of the mounting plate (310), a slide groove (311) is opened in the middle of one side inside the adjusting box (312), a slider (38) is slidably connected to the inner side of the slide groove (311), a spring (39) is arranged at the top of the slider (38), a movable plate (37) is arranged on one side of the slider (38), and an electric contact block B (36) matching with the electric contact block A (35) is arranged at the bottom of the movable plate (37).

2. The automatic start-stop device for pump cooling water according to claim 1, characterized in that: A movable rod connected to the mounting plate (310) is sleeved on one side of the top of the adjustment box (312), and a scale bar is provided on the top of one side of the movable rod. A pointer is provided on the side of the top of the adjustment box (312) close to the movable rod.

3. The automatic start and stop device for pump cooling water according to claim 1, characterized in that: A mounting groove is provided on one side of the top of the regulating box (312), and the motor (313) is located inside the mounting groove.

4. The automatic start-stop device for pump cooling water according to claim 1, characterized in that: Two groups of sealing rings matching the regulating rod (34) are arranged on the top of the inner side of the valve body (31).

5. The automatic start-stop device for pump cooling water according to claim 1, characterized in that: One side of the cooling water pipe (5) is connected to an external water source.

6. The automatic start-stop device for pump cooling water according to claim 1, characterized in that: The bottom of the spring (39) is connected to the slider (38), and the top of the spring (39) is connected to the top of the inner side of the slide groove (311).

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