CN210372080U

CN210372080U - Direct-acting electromagnetic temperature control valve

Info

Publication number: CN210372080U
Application number: CN201921022004.4U
Authority: CN
Inventors: 张波
Original assignee: Sichuan Crun Co ltd
Current assignee: Sichuan Crun Co ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-04-21
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses a direct-acting electromagnetic temperature control valve, which comprises a valve body, a cavity is arranged in the valve body, three liquid flow ports are arranged on the valve body and communicated with the cavity, the three liquid flow ports are not all positioned on the same plane, one of the liquid flow ports is correspondingly provided with an armature arranged in the valve body, the armature is connected with a pressure spring, the pressure spring is connected with a transition armature, the pressure spring is in a compression state, the transition armature is connected with an iron core and a coil, and the transition armature is connected with the valve body; the valve body is also provided with a thermal resistor, and a resistor body of the thermal resistor is arranged in the cavity. The electromagnetic temperature control valve can slowly adjust the flow direction of lubricating oil and can also adjust the flow of two oil ways, the service life is long, only the electromagnetic coil part needs to be replaced during maintenance, the maintenance cost is low, and meanwhile maintenance without stopping can be achieved.

Description

Direct-acting electromagnetic temperature control valve

Technical Field

The utility model belongs to the wind-powered electricity generation field, concretely relates to direct action formula electromagnetism temperature-sensing valve.

Background

In the field of wind power, a lubricating and cooling system is needed to lubricate and cool a speed-up gear box of a fan, and the lubricating and cooling system mainly comprises a pump filtering device and a cooler. The pump filter device directly absorbs oil from the speed-up gear box, and when the oil absorption temperature is low, the pump filter device directly conveys lubricating oil to each lubricating point of the speed-up gear box through a pipeline and the pump filter device firstly conveys the lubricating oil to the cooler and then reaches each lubricating point of the speed-up gear box. Along with the oil absorption temperature gradually increases, the lubricating oil requirement that the pump filter device directly delivered to the speed-up gear box is continuously reduced until zero, and the lubricating oil from the pump filter device to the speed-up gear box through the cooler is continuously increased until all the lubricating oil passes through the cooler and then reaches the speed-up gear box. The purpose of the lubricating oil passing through the cooler is to cool the high-temperature oil and then convey the cooled high-temperature oil to each lubricating point of the speed-up gearbox for lubrication.

At present, the most common method is to adopt a temperature control valve with a paraffin structure, and push a temperature control valve core to move by the principle of expansion with heat and contraction with cold of paraffin so as to achieve the purpose of adjusting the flow direction of lubricating oil. However, the temperature control valve has the disadvantages that the rubber element in the temperature bulb in the temperature control valve is easy to fatigue and lose efficacy due to continuous back and forth movement and continuous temperature change, the service life of the temperature control valve is short, the later maintenance cost is high, the whole temperature control valve needs to be replaced, and the whole wind driven generator needs to be stopped when the temperature control valve is replaced.

At present, a way of switching lubricating oil is to adopt a one-way valve, install the one-way valve in a pipeline through which a pump filter device is directly connected with a speed-up gear box, and utilize the characteristic of high system pressure due to high viscosity of low-temperature oil, the one-way valve is opened when the single pump filter device conveys the low-temperature oil, at the moment, the lubricating oil is directly conveyed to each lubricating point of the speed-up gear box through the pipeline, and the pump filter device conveys the lubricating oil to a cooler firstly and then reaches each lubricating point of the speed-up gear box. When the oil temperature is high, the system pressure is low, the one-way valve is closed, and the lubricating oil only passes through the cooler and then reaches each lubricating point of the speed-up gearbox. The disadvantage of this method is that the flow direction adjustment of the lubricating oil is completed instantly and the flow rate of the two oil paths cannot be adjusted, and the system is affected by pressure pulsation when the one-way valve is opened or closed. The pressure of the lubricating and cooling systems with different flow rates is different, so that the one-way valves with different opening pressures are required to be designed to meet the requirements of the lubricating and cooling systems with different flow rates, and the air-cooled power generation system also needs to be stopped when the one-way valves are replaced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a direct action formula electromagnetism temperature-sensing valve, the flow of two way oil circuits also can be adjusted simultaneously to the flow direction that can slowly adjust lubricating oil, and life is high, only needs to change the solenoid part during the maintenance, and the maintenance cost is low, can accomplish the maintenance of not shutting down simultaneously.

The utility model adopts the technical scheme as follows:

a direct-acting electromagnetic temperature control valve comprises a valve body, wherein a cavity is arranged in the valve body, three liquid flow ports communicated with the cavity are formed in the valve body, the three liquid flow ports are not positioned on the same plane, one of the liquid flow ports is correspondingly provided with an armature arranged in the valve body, the armature is connected with a pressure spring, the pressure spring is connected with a transition armature, the transition armature is connected with an iron core and a coil, and the transition armature is connected with the valve body; the valve body is also provided with a thermal resistor, and a resistor body of the thermal resistor is arranged in the cavity.

The electromagnetic temperature control valve is applied to the wind power field, when the speed-up gear box of the fan is lubricated and cooled by the lubricating system, the flow of two oil ways can be slowly adjusted while the flow direction of lubricating oil is slowly adjusted, the service life is long, only the electromagnetic coil part needs to be replaced during maintenance, the maintenance cost is low, and the maintenance can be carried out without stopping when the coil is replaced.

Preferably, the iron core and the coil are connected to a coil shield.

Adopt above-mentioned preferred scheme, the coil guard shield can play the effect of protection iron core and coil, prolongs the life of iron core and coil.

Preferably, the thermal resistor is connected with the valve body through threads.

Adopt above-mentioned preferred scheme, be convenient for the erection joint of thermal resistance and valve body.

Preferably, the transition armature is connected with the iron core and the coil through threads.

By adopting the preferred scheme, the transition armature is convenient to be installed and connected with the iron core and the coil.

Preferably, a slotted hole is formed in one end of the transition armature, an internal thread is arranged in the slotted hole, the slotted hole is not communicated with the other end of the transition armature, and an external thread is arranged at the other end of the transition armature.

By adopting the preferred scheme, one end of the transition armature is provided with a slotted hole, an internal thread is arranged in the slotted hole, and an external thread is arranged at one end of the transition armature, so that the transition armature is conveniently in threaded connection with the iron core, the coil and the valve body respectively; in addition, the slotted hole does not communicate with the other end of the transition armature, and the transition armature is prevented from leaking oil when the coil is replaced.

Preferably, the armature is provided with a plurality of through holes communicated with the bottom from the top.

By adopting the preferred scheme, when the armature is prevented from moving upwards, the oil liquid at the top of the armature generates pressure to prevent the armature from moving upwards.

Preferably, the fluid port correspondingly provided with the armature is an oil outlet II, and the other two fluid ports are provided, wherein one of the fluid ports is the oil outlet I, and the other fluid port is an oil inlet.

Preferably, the thermal resistor is a platinum thermal resistor or a copper thermal resistor.

Preferably, the iron core and the coil are composed of a magnetic iron core and a copper coil.

Preferably, the armature and the transition armature are made of magnetically conductive material.

Drawings

Fig. 1 is a cross-sectional view of the present invention;

fig. 2 is a schematic structural diagram of the present invention;

fig. 3 is an exploded view of the present invention.

The hydraulic oil-gas mixing valve comprises a coil shield 1, an iron core and a coil 2, a pressure spring 3, an armature 4, a thermal resistor 5, a valve body 6, a transition armature 7, a cavity 8, a liquid flow port 9, an oil inlet 91, an oil outlet 92 and an oil outlet 93.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.

Example 1

A direct-acting electromagnetic temperature control valve is shown in figures 1 and 3 and comprises a valve body 6, wherein a cavity 8 is arranged in the valve body 6, three liquid flow ports 9 are formed in the valve body 6 and communicated with the cavity 8, the three liquid flow ports 9 are not located on the same plane, an armature 4 arranged in the valve body 6 is correspondingly arranged at one of the liquid flow ports 9, the armature 4 is connected with a pressure spring 3, the pressure spring 3 is connected with a transition armature 7, the pressure spring is in a compression state, the transition armature 7 is connected with an iron core and a coil 2, and the transition armature 7 is connected with the valve body 6; the valve body 6 is also provided with a thermal resistor 5, and a resistor body of the thermal resistor 5 is arranged in the cavity 8.

The electromagnetic temperature control valve of the utility model, as shown in fig. 1 and fig. 3, comprises a valve body 6, wherein a cavity 8 is arranged inside the valve body 6, three liquid flow ports 9 are arranged on the valve body 6 and communicated with the cavity 8, and the three liquid flow ports 9 are not all in the same plane, so that the valve body 6 is similar to a three-way valve structure; one of the liquid flow ports 9 is correspondingly provided with an armature 4 arranged in the valve body 6, and the armature 4 is equivalent to a valve and used for closing the liquid flow port 9 correspondingly provided with the armature 4 and preventing the liquid in the cavity 8 from flowing out through the liquid flow port 9; the opening and closing of the armature 4 are realized by matching the following components, as shown in fig. 1 and fig. 2, the armature 4 is connected with a pressure spring 3, the pressure spring 3 is connected with a transition armature 7, and the pressure spring 3 is in a compression state, in the embodiment, the armature 4 and the pressure spring 3 can be in contact connection, and the pressure spring 3 and the transition armature 7 can be in contact connection, so that the structural design of the electromagnetic temperature control valve is simplified, the transition armature 7 is connected with an iron core and a coil 2, and the transition armature 7 is also connected with a valve body 6 to fix the transition armature 7 on the valve body 6; the valve body 6 is also provided with a thermal resistor 5, and a resistor body of the thermal resistor 5 is arranged in the cavity 8; when the valve body 6 of the application is used, the wire is used for connecting the terminal four of the iron core and the coil 2 with the terminal two of the thermal resistor 5, meanwhile, the wire is used for connecting the two wire outgoing ends of the power supply with the terminal three of the iron core and the coil 2 and the terminal one of the thermal resistor 5 respectively, so that the iron core, the coil 2 and the thermal resistor 5 form a power-on circuit, as the resistor body of the thermal resistor 5 is arranged in the cavity 8, when the temperature of liquid in the cavity 8 is low, the resistance of the thermal resistor 5 is not large, at the moment, the total resistance in the circuit formed by the power supply, the iron core, the coil 2 and the thermal resistor 5 is low, the current in the circuit is large, the iron core and the coil 2 generate large electromagnetic force and transmit the large electromagnetic force to the transition armature 7, the electromagnetic force on the transition armature 7 attracts the armature 4 to move upwards, and is larger than the pressure applied to, the armature 4 opens a liquid flow port 9 corresponding to the armature 4, so that the liquid in the cavity 8 can flow out of the liquid flow port 9; if the temperature of the liquid in the cavity 8 gradually rises, the resistance value of the thermal resistor 5 also gradually increases, the current value in the whole current loop also gradually decreases, the electromagnetic force generated by the iron core and the coil 2 also gradually decreases, the electromagnetic force for the upward movement generated by the armature 4 on the transition armature gradually decreases, the pressure generated by the compression spring 3 is gradually reduced for the electromagnetic force to balance with the force generated by the compression spring 3, the compression amount of the spring is gradually reduced, so that the armature 4 gradually moves downwards, the armature 4 is enabled to slowly close the liquid flow port 9 corresponding to the armature 4, and the liquid flow rate of the liquid flow port 9 is reduced. When the temperature rises to a certain value, the resistance value of the thermal resistor 5 also increases to a certain value, at this time, the upward movement electromagnetic force attraction force generated by the transitional armature 7 to the armature 4 is completely smaller than the downward movement pressure generated by the pressure spring 3 to the armature 4, therefore, under the pressure action of the pressure spring 3, the armature 4 is tightly attached to the bottom of the hollow cavity 8 of the valve body 6 to shield the liquid flow port 9 correspondingly provided with the armature 4, the size of the liquid flow port formed by the channel of the liquid flow port 9 is zero, namely, the armature 4 completely closes the liquid flow port 9. When the iron core and the coil 2 are not in circuit communication with the thermal resistor 5, the compression spring 3 is in a compression state, so that the armature 4 only bears downward pressure from the compression spring 3, the armature 4 is tightly attached to the bottom of the hollow cavity of the valve body 6 under the pressure action of the compression spring 3, and the armature 4 can close the liquid flow port 9 corresponding to the armature 4.

When the electromagnetic temperature control valve is applied to the wind power field, the speed-up gear box of the fan is lubricated and cooled by using the lubricating system, the liquid flow port 9 corresponding to the armature 4 is used as one oil outlet, the other two liquid flow ports are used as one oil outlet, the other liquid flow port is used as an oil inlet, the iron core, the coil 2 and the circuit of the thermal resistor 5 are communicated, the temperature of oil which just enters the valve body 6 is lower, the armature 4 is far higher than the downward pressure due to the upward electromagnetic force, so that the oil outlet corresponding to the armature 4 is completely opened, and lubricating oil flows out from the two oil outlets respectively; along with the rise of the temperature of the oil, the upward electromagnetic force applied to the armature 4 is reduced, the armature 4 slowly moves downwards, so that the opening of the oil outlet corresponding to the armature 4 is reduced, the flow of the oil at the oil outlet is reduced, and the flow of the oil entering the oil inlet is unchanged, so that the flow of the oil flowing out from the other oil outlet is gradually increased, and the function of adjusting the flow of the oil outlet along with the change of the temperature can be achieved; when the temperature of the oil rises to a certain temperature, the electromagnetic force borne by the armature 4 is far smaller than the downward pressure of the spring 3 on the armature 4, so that the armature 4 completely closes a channel of an oil outlet corresponding to the armature 4, the oil flow of the oil outlet is zero, and the oil flows out from the other oil outlet. When the circuit communication of the iron core and the coil 2 and the thermal resistor 5 is not connected, the armature 4 is pressed downwards by the spring 3, so that the corresponding oil outlet channel of the armature 4 is completely closed, and the oil flows out from the other oil outlet. Therefore, when the iron core and the coil 2 need to be replaced or maintained, the whole wind power generation equipment does not need to be closed, the old iron core and the coil 2 are directly taken out of the transition armature 7, power lines on the terminal three and the terminal four are removed, and then a new iron core and a new coil 2 are installed in the transition armature 7 and the power lines on the terminal three and the terminal four are connected.

Example 2

Based on the above embodiment 1, as shown in fig. 1, 2, and 3, the core and the coil 2 are connected to the coil shield 1. In this embodiment, will iron heart yearn and circle 2 are connected with coil guard 1, and coil guard 1 cover is in on iron core and the coil 2, can prevent that iron core and coil 2 from receiving external influence to further strengthen iron core and coil 2's life.

Example 3

Based on the above embodiment 1, as shown in fig. 1 and 3, the heat resistor 5 and the valve body 6 are screwed together. Because the resistive element of thermal resistor 5 is to be placed in cavity 8 of valve body 6, therefore adopt threaded connection can be convenient for thermal resistor 5 and valve body 6 be connected, in addition, through threaded connection, can make thermal resistor 5's resistive element not contact the cavity wall of valve body 6, prevent that thermal resistor 5 from receiving the influence of cavity wall. The above connection method is only a preferable example, and the connection between the two is not limited to the above connection method.

Example 4

Based on the above embodiment 1, as shown in fig. 1 and fig. 3, the transition armature 7 is connected with the iron core and the coil 2 by screw threads. In this embodiment, the transition armature 7 and the iron core and the coil 2 are connected through a screw thread, so that the iron core, the coil 2 and the transition armature 7 are connected in direct contact, and the electromagnetic force is prevented from being damaged in the transmission process as much as possible.

Example 5

Based on the

above embodiment

1 or 4, as shown in fig. 1 and 3, one end of the transition armature 7 is provided with a slot hole, an internal thread is arranged in the slot hole, the slot hole is not communicated with the other end of the transition armature 7, and the other end of the transition armature 7 is provided with an external thread. In the embodiment, the transition armature 7 is respectively connected with the iron core, the coil 2 and the valve body 6, one end of the transition armature 7 is provided with a slot hole, an internal thread is arranged in the slot hole, the connecting end is used for being in threaded connection with the iron core and the coil 2, and the other end is provided with an external thread used for being connected with the valve body 6 so as to fix the transition armature 7 on the valve body 6; the slotted hole is not communicated with the other end of the transition armature 7, so that oil is prevented from leaking from the slotted hole when the iron core and the coil 2 are maintained or replaced in the later period. If the slot hole is communicated with the other end of the transition armature, oil leakage can happen outwards.

Example 6

Based on the above embodiment 1, as shown in fig. 3, the armature 4 is provided with a plurality of through holes communicating from the top to the bottom. Because there is oil above the armature 4, if the armature 4 moves upward, the oil will be compressed, and generate pressure to prevent the upward movement of the armature 4, and in this embodiment, there are several through holes communicating from the top to the bottom on the armature 4, and the oil on the top of the armature 4 can flow out from the through holes, so as not to prevent the upward movement of the armature 4, and the through holes are equivalent to pressure relief holes.

Example 7

Based on the above embodiment 1, as shown in fig. 1 and fig. 2, the fluid port 9 correspondingly provided with the armature 4 is the second oil outlet 93, and the other two fluid ports 9, wherein one of the fluid ports 9 is the first oil outlet 92, and the other fluid port 9 is the oil inlet 91. In this embodiment, two oil outlets may be respectively marked, so as to facilitate connection of each oil outlet to a corresponding device, in this embodiment, the fluid flow port 9 correspondingly provided with the armature 4 is the second oil outlet 93, one of the other two fluid flow ports 9 is the first oil outlet 92, and the other is the oil inlet 91. The oil inlet 91 is connected with a lubricating system, the first oil outlet 92 is connected with a cooler, and the second oil outlet 93 is connected with a gear box. The process that the oil in this embodiment flows through the valve body 6 is that the pump filtering device absorbs oil from the gear box, then the oil is filtered and then conveyed to the oil inlet 91 of the electromagnetic temperature control valve, the electromagnetic temperature control valve redistributes the oil to the gear box and the cooler through the oil outlet I92 and the oil outlet II 93, when the oil temperature is high to a certain degree, the channel of the oil outlet II 93 is sealed and closed by the armature 4, the oil only comes out from the oil outlet I92 to the cooler, and the oil is cooled by the cooler and then conveyed to the gear box. In addition, the marking mode is not limited to the above one, and it is only necessary that the fluid flow port 9 provided correspondingly with the armature 4 is an oil outlet, and the oil outlet is connected with the gear box.

Example 8

Based on the above embodiment 1, the heat resistor 5 employs either a platinum heat resistor or a copper heat resistor. Both the platinum and copper resistors can change resistance values with the change of temperature.

Example 9

Based on the above embodiment 1, the iron core and coil 2 is composed of a magnetically permeable iron core and a copper coil. In the embodiment, the iron core and the coil are made of magnetic conductive iron cores, so that large electromagnetic force is easy to generate, and the copper coil is small in resistance and easy to conduct.

Example 10

Based on the above embodiment 1, the armature 4 and the transition armature 7 are made of a magnetically conductive material. The armature 4 and the transition armature 7 in the embodiment are made of magnetic conductive materials, and large electromagnetic force is easy to generate.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all covered by the protection scope of the present invention. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.

Claims

1. A direct-acting electromagnetic temperature control valve comprises a valve body and is characterized in that a cavity is arranged in the valve body, three liquid flow ports are formed in the valve body and communicated with the cavity, the three liquid flow ports are not located on the same plane, one of the liquid flow ports is correspondingly provided with an armature arranged in the valve body, the armature is connected with a pressure spring, the pressure spring is connected with a transition armature, the pressure spring is in a compression state, the transition armature is connected with an iron core and a coil, and the transition armature is connected with the valve body; the valve body is also provided with a thermal resistor, and a resistor body of the thermal resistor is arranged in the cavity.

2. A direct acting electromagnetic temperature control valve as claimed in claim 1, wherein the core and coil are connected to a coil shield.

3. A direct-acting electromagnetic temperature control valve as claimed in claim 1, wherein the thermal resistor is screw-connected to the valve body.

4. The direct-acting electromagnetic temperature control valve according to claim 1, wherein the transition armature is in threaded connection with the iron core and the coil.

5. A direct-acting electromagnetic temperature control valve as claimed in claim 1 or 4, wherein one end of the transition armature is provided with a slot hole, an internal thread is arranged in the slot hole, the slot hole is not communicated with the other end of the transition armature, and the other end of the transition armature is provided with an external thread.

6. A direct-acting electromagnetic temperature control valve as claimed in claim 1, wherein the armature is provided with a plurality of through holes communicating from the top to the bottom.

7. The direct-acting electromagnetic temperature control valve according to claim 1, wherein the fluid port provided with the armature correspondingly is an oil outlet two, and the other two fluid ports are provided, wherein one of the fluid ports is an oil outlet one, and the other fluid port is an oil inlet.

8. A direct-acting electromagnetic temperature control valve as claimed in claim 1, wherein the thermal resistor is any one of a platinum thermal resistor and a copper thermal resistor.

9. A direct-acting electromagnetic temperature control valve as claimed in claim 1, wherein the core and coil are composed of a magnetically permeable core and a copper coil.

10. A direct acting electromagnetic temperature control valve as claimed in claim 1, wherein the armature and transition armature are made of magnetically conductive material.