Embedded temperature sensing regulating valve
The embedded temperature sensing regulating valve senses the liquid temperature through a shape memory alloy spring and automatically adjusts the position of the drain port and the outlet port. This solves the problems of time-consuming, labor-intensive, costly, and low-precision temperature regulation in existing technologies, and achieves precise control of liquid temperature and simplified assembly and maintenance.
Patent Information
- Application Number
- CN202520619064.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-03
AI Technical Summary
Existing temperature control technologies in industrial equipment oil circuit systems suffer from problems such as being time-consuming and labor-intensive, costly, structurally complex, slow in response, low in control accuracy, susceptible to interference from harsh environments, and difficult to maintain, making it difficult to achieve precise control of the medium temperature.
It adopts an embedded temperature sensing regulating valve, which uses a memory alloy spring to sense the liquid temperature. By sensing the liquid temperature and automatically adjusting the relative position of the drain port and the outlet, it achieves precise control of the liquid temperature. The structure is simple and eliminates the need for manual or electric/pneumatic actuators.
It achieves precise control of liquid temperature, simplifies assembly and maintenance processes, reduces costs, improves response speed and adjustment accuracy, is suitable for harsh environments, and is practical and corrosion-resistant.
Smart Images
Figure CN223895230U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of embedded temperature regulating valve, belong to temperature sensing element technical field. BACKGROUND
[0002] In the oil circuit system of industrial equipment, the temperature control of working medium is crucial, but the existing temperature regulation technology has many deficiencies.
[0003] On the one hand, the traditional temperature regulation mode is mostly manual operation or relies on electric or pneumatic actuators. The former is time-consuming and laborious and has low precision, and the latter needs external energy support and has a complex control system, resulting in high cost and vulnerability to harsh environments.
[0004] On the other hand, the traditional temperature control valve has a complex structure and many components, which not only increases the manufacturing cost but also makes the assembly process cumbersome and prone to errors. Moreover, it is bulky and not suitable for installation in devices with limited space. At the same time, these devices have slow response speed, low regulation precision, and are difficult to accurately control the medium temperature within the target range. They also have poor reliability and stability, are prone to failure in harsh environments, and have short service life. In addition, maintenance difficulty and high cost are also prominent problems of existing technology. The complex structure makes disassembly difficult during maintenance, and the cost of manufacturing, maintenance, and replacement of components is high.
[0005] Therefore, it is necessary to improve the existing embedded temperature regulating valve to solve the above problems. SUMMARY
[0006] To solve the above technical problems, the utility model provides an embedded temperature regulating valve, which can sense the temperature of the liquid and control the liquid temperature within a suitable target range.
[0007] The technical scheme of the utility model is as follows:
[0008] An embedded temperature regulating valve is used to install into the main flow channel of a device. The outer wall surface of the main flow channel is provided with a flow discharge port. The embedded temperature regulating valve comprises:
[0009] A regulating valve body is accommodated inside the main flow channel and includes a top rod and a valve body in abutment with the inner wall surface of the main flow channel. The valve body is provided with a through liquid passage and a discharge port communicating with the liquid passage. The valve body has a connecting portion located in the liquid passage. The top rod is at least partially located in the liquid passage and is movably connected with the connecting portion. The top rod is provided with a stop member.
[0010] A memory alloy spring is located between the connecting part and the blocking part and is configured to be able to sense the temperature of the liquid in the liquid passing cavity and drive the valve body to move to a position in which the drain port and the drain port are at least partially opposite.
[0011] As a further improvement of the utility model, the embedded temperature sensing valve further comprises a reset spring, the reset spring is located on the side of the connecting part opposite to the memory alloy spring, and abuts against the connecting part.
[0012] As a further improvement of the utility model, the main flow channel has two limiting parts oppositely arranged in the main flow channel, and the ejector rod and the reset spring abut against one of the limiting parts respectively.
[0013] As a further improvement of the utility model, in the flow direction of the liquid in the liquid passing cavity, the memory alloy spring is arranged close to the water inlet, and the reset spring is arranged close to the water outlet.
[0014] As a further improvement of the utility model, the limiting part comprises a first limiting part arranged close to the water inlet and a second limiting part arranged close to the water outlet, one end of the ejector rod away from the reset spring abuts against the first limiting part, and one end of the reset spring opposite to the connecting part abuts against the second limiting part.
[0015] As a further improvement of the utility model, one end of the ejector rod opposite to the blocking part is provided with a blocking part, and the blocking part is used for limiting the moving distance of the valve body under the driving of the memory alloy spring.
[0016] As a further improvement of the utility model, when the blocking part abuts against the connecting part, the distance between the connecting part and the blocking part is greater than or equal to the maximum stretching length of the memory alloy spring.
[0017] As a further improvement of the utility model, the blocking part is provided with a through liquid passing hole.
[0018] As a further improvement of the utility model, the main flow channel has a water inlet and a water outlet connected with the liquid passing cavity, and a cooling flow channel is arranged between the drain port and the water inlet, and when the drain port and the drain port are opposite, the liquid discharged from the drain port flows into the water inlet through the drain port and the cooling flow channel.
[0019] As a further improvement of the utility model, the memory alloy spring has a compressed state and a stretched state, when the memory alloy spring is in the compressed state, the connecting part is pushed by the reset spring, the flow outlet and the discharge outlet are staggered, when the memory alloy spring is in the stretched state, the connecting part is pushed by the memory alloy spring, the flow outlet and the discharge outlet are at least partially opposite.
[0020] The beneficial technical effects of the utility model are: the embedded temperature sensing regulating valve of the utility model is characterized in that the valve body of the regulating valve main body is abutted with the inner wall surface of the main flow channel, a through liquid passing cavity is arranged in the valve body, and a discharge outlet is arranged in the valve body and is communicated with the liquid passing cavity, the valve body is provided with a connecting part in the liquid passing cavity, a top rod is at least partially arranged in the liquid passing cavity and is movably connected with the connecting part, a stop part is arranged on the top rod, a memory alloy spring is arranged between the connecting part and the stop part, and the memory alloy spring is configured to sense the temperature of the liquid in the liquid passing cavity and drive the valve body to move to a position where the discharge outlet and the flow outlet are at least partially opposite, so that the discharge outlet and the flow outlet are communicated after the memory alloy spring is heated and stretched, hot water is discharged, and the temperature of the liquid in the liquid passing cavity is controlled, without manual operation or electric or pneumatic actuators, so that the utility model is simple and low in cost. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 is the installation structure diagram of the embedded temperature sensing regulating valve and the main flow channel according to the preferred embodiment of the utility model.
[0022] Figure 2 is Figure 1 the structure diagram of the embedded temperature sensing regulating valve.
[0023] Figure 3 is Figure 2 the structure diagram after the valve body and the reset spring are hidden.
[0024] Figure 4 is Figure 3 the structure diagram of the top rod.
[0025] Figure 5 is Figure 1 the cross-sectional view.
[0026] Figure 6 is Figure 1 the cross-sectional view in another state. DETAILED DESCRIPTION
[0027] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.
[0028] Please see Figures 1 to 6 As shown, this utility model discloses an embedded temperature-sensing regulating valve 100, which is installed in the main channel 1 of a large fluid device. The main channel 1 is provided with a drain port 13. The embedded temperature-sensing regulating valve 100 achieves the constant temperature regulation function by cooperating with the drain port 13 on the inner diameter and side wall of the main channel 1.
[0029] The main channel 1 has an inlet 11, an outlet 12, and a drain 13 that are connected to each other. Preferably, there are two drains 13, which cover opposite sides of the outer periphery of the main channel 1. Of course, in other embodiments, the drains 13 can be designed according to actual needs, and there is no limitation thereto.
[0030] Specifically, the embedded temperature-sensing regulating valve 100 includes a regulating valve body 2 and a shape memory alloy spring 3. The regulating valve body 2 is housed inside the main flow channel 1 and includes a push rod 21 and a valve body 22 that abuts against the inner wall of the main flow channel 1. The valve body 22 has a through liquid passage chamber 220 and a drain port 221 connected to the liquid passage chamber 220. The valve body 22 has a connecting portion 222 located within the liquid passage chamber 220. The push rod 21 is at least partially located within the liquid passage chamber 220 and is movably connected to the connecting portion 222. The connecting portion 222 has a through hole (not shown) through which the push rod 21 passes. The inner diameter of the through hole is slightly larger than the diameter of the push rod 21 by 0.01-0.02 mm, and the depth of the through hole is 0.8-10 times the diameter of the push rod 21.
[0031] Liquid enters the main channel 1 through the inlet 11. Since the valve body 22 is in contact with the inner wall of the main channel 1, the liquid enters the liquid passage chamber 220 after entering the main channel 1, and then exits from the outlet 12.
[0032] In the embodiment, the top rod 21 is fixed relative to the main flow channel 1, and the valve body 22 is movable relative to the top rod 21, i.e., movable relative to the main flow channel 1. When the valve body 22 is moved to a position where the drain port 221 is at least partially aligned with the drain port 13, i.e., the drain port 221 is in communication with the drain port 13, the liquid in the liquid passing cavity 220 flows out of the drain port 221, and then out of the main flow channel 1 through the drain port 13, so that the temperature of the liquid in the liquid passing cavity 220 is reduced. When the valve body 22 is moved to a position where the drain port 221 is misaligned with the drain port 13, the drain port 221 is blocked by the inner wall of the main flow channel 1, and the drain port 13 is not blocked by the valve body 22, so that the liquid in the liquid passing cavity 220 cannot flow out, but only flows out of the water outlet 12.
[0033] Specifically, the top rod 21 is provided with a blocking member 211, and the memory alloy spring 3 is located between the connecting portion 222 and the blocking member 211 and is configured to be able to sense the temperature of the liquid in the liquid passing cavity 220 and drive the valve body 22 to move to a position where the drain port 221 is at least partially aligned with the drain port 13. That is, the memory alloy spring 3 is also located in the liquid passing cavity 220 and can be in contact with the liquid in the liquid passing cavity 220.
[0034] The memory alloy spring 3 is made of an alloy material having a shape memory effect, and the crystal grains of the alloy material are austenite in a high-temperature state, and the shear modulus and the elastic modulus are relatively high; in a low-temperature state, the crystal grains are martensite, and the shear modulus and the elastic modulus are relatively low. The elastic force of the memory alloy spring 3 in a high-temperature state is several times larger than that in a low-temperature state, so the memory alloy spring 3 can sense the temperature of the outside environment and thus make a driving response.
[0035] The force value sensitivity of the memory alloy spring 3 to water temperature can reach 0.1℃, i.e., the memory alloy spring 3 can make a force value response to a temperature difference change of 0.1℃. Moreover, the response speed of the memory alloy spring 3 to a sharp change in water temperature is as high as 0.2 seconds, so the memory alloy spring 3 can accurately sense and quickly respond to the temperature of water, thereby achieving accurate control of the temperature of water.
[0036] Please refer to Figure 5 and Figure 6As shown, the memory alloy spring 3 has a compressed state and a stretched state, when the liquid temperature in the liquid passing cavity 220 is high, the memory alloy spring 3 can be stretched, and push the connecting part 222 to the at least partially opposite positions of the liquid discharge port 13 and the liquid exhaust port 221; when the liquid temperature in the liquid passing cavity 220 decreases, the memory alloy spring 3 shrinks, so that the valve body 22 moves to the misaligned positions of the liquid discharge port 13 and the liquid exhaust port 221. In this way, the temperature of the liquid in the liquid passing cavity 220 can be automatically balanced to control it within a certain range. In addition, the memory alloy spring 3 has strong corrosion resistance, so it can be used in chemical, printing and dyeing, marine engineering and other scenes with acid and alkali corrosion.
[0037] Specifically, the embedded temperature regulating valve 100 further comprises a reset spring 4, which is located on the side of the connecting part 222 opposite to the memory alloy spring 3 and abuts against the connecting part 222. The main flow channel 1 has two limit parts 14 arranged oppositely, and the top rod 21 and the reset spring 3 abut against one of the limit parts 14 respectively. Preferably, the limit part 14 and the connecting part 222 are both cross supports, so that the liquid can flow. Of course, in other embodiments, the limit part 14 and the connecting part 222 can be other structures, as long as they have holes for liquid flow, which are not limited.
[0038] In this embodiment, the memory alloy spring 3 is arranged close to the water inlet 11 in the flow direction of the liquid in the liquid passing cavity 220, and the reset spring 4 is arranged close to the water outlet 12. The limit part 14 includes a first limit part 141 arranged close to the water inlet 11 and a second limit part 142 arranged close to the water outlet 12, and the end of the top rod 21 away from the reset spring 4 abuts against the first limit part 141, and the end of the reset spring 4 opposite to the connecting part 222 abuts against the second limit part 142.
[0039] In other words, the adjusting valve body 2 and the reset spring 4 are limited between the two limiting portions 14, and a balance is maintained by the elastic force of the reset spring 4 and the memory alloy spring 3. The states of the reset spring 4 and the memory alloy spring 3 are opposite, when the memory alloy spring 3 is in the stretched state, the force of the memory alloy spring 3 pressing the connecting portion 222 is greater than the force of the reset spring 4 pressing the connecting portion 222, thus the connecting portion 222 is pushed to move towards the reset spring 4, at this time, the drain port 13 and the drain outlet 221 are at least partially in register. When the memory alloy spring 3 is in the compressed state, the force of the memory alloy spring 3 pressing the connecting portion 222 is less than the force of the reset spring 4 pressing the connecting portion 222, thus the reset spring 4 pushes the connecting portion 222 to move towards the memory alloy spring 3, at this time, the drain port 13 and the drain outlet 221 are misaligned.
[0040] Of course, in other embodiments, when the memory alloy spring 3 is in the stretched state, the memory alloy spring 3 pushes the connecting portion 222 to move towards the reset spring 4, at this time, the drain port 13 and the drain outlet 221 are misaligned; when the memory alloy spring 3 is in the compressed state, the reset spring 4 pushes the connecting portion 222 to move towards the memory alloy spring 3, at this time, the drain port 13 and the drain outlet 221 are at least partially in register. This is only a change in position, and is not limited in this regard.
[0041] One end of the top rod 21 relative to the blocking member 211 is provided with a blocking member 212, which is used to limit the moving distance of the valve body 22 under the driving of the memory alloy spring 3. When the blocking member 212 abuts against the connecting portion 222, the distance between the connecting portion 222 and the blocking member 211 is greater than or equal to the maximum stretching length of the memory alloy spring 3. That is, the blocking member 212 can play a limiting role. Preferably, when the blocking member 212 abuts against the connecting portion 222, the drain port 13 and the drain outlet 221 are completely in register.
[0042] Preferably, the blocking member 211 includes a blocking plate 2111 for abutting against the memory alloy spring 3 and a blocking portion 2112 sleeved on the top rod 21, when the connecting portion 222 is pushed by the reset spring 4 to abut against the blocking portion 2112, the drain port 13 and the drain outlet 221 are completely misaligned. That is, the moving distance of the connecting portion 222 is the distance between the blocking member 212 and the blocking portion 2112. Preferably, the blocking member 212 is a gasket or a nut, and is not limited in this regard.
[0043] The stop piece 211 is provided with a through liquid passage hole 2110.
[0044] In the embodiment, a cooling flow channel (not shown) is arranged between the drain port 13 and the water inlet port 11, and when the drain port 13 and the drain discharge port 221 are relatively positioned, the liquid discharged from the drain discharge port 221 flows into the water inlet port 11 through the drain port 13 and the cooling flow channel. In this way, recycling can be realized, water resources can be saved, and costs can be reduced.
[0045] In addition, for different caliber, water pressure, flow and temperature requirements, by fitting the rigidity of the memory alloy spring 3 under high and low temperature conditions, the comprehensive requirements of the embedded temperature regulating valve 100 on caliber, water pressure, flow and temperature in different application scenarios can be matched by only replacing the memory alloy spring 3 and the reset spring 4 under the condition that the basic structure does not change.
[0046] In summary, the embedded temperature regulating valve 100 of the utility model, by abutting the valve body 22 of the regulating valve main body 2 with the inner wall surface of the main flow channel 1, and arranging a through liquid passage cavity 220 in the valve body 22 and a drain discharge port 221 communicated with the liquid passage cavity 220, the valve body 22 has a connecting part 222 in the liquid passage cavity 220, the top rod 21 of the regulating valve main body 2 is at least partially located in the liquid passage cavity 220 and movably connected with the connecting part 222, the top rod 21 is provided with a stop piece 211, the memory alloy spring 3 is located between the connecting part 222 and the stop piece 211, and is configured to be able to sense the temperature of the liquid in the liquid passage cavity 220 and drive the valve body 22 to move to the drain discharge port 221 and the drain port 13 at least partially relative position, so that the drain discharge port 221 and the drain port 13 are communicated after the memory alloy spring 3 is heated and stretched, so as to discharge hot water, and then control the temperature of the liquid in the liquid passage cavity 220. Without relying on manual operation or relying on electric or pneumatic actuators, or external power supply and control signal, the opening and closing and opening ratio of the cooling flow channel can be adjusted according to the actual temperature of the liquid, so as to realize the stability of medium temperature with simpler structure and better control precision. In addition, the structure is simple, whether it is to replace parts or to repair, it is more simple and practical.
[0047] The above merely is preferred implementation manner of the present application, and is not used for limiting the present application, it should be pointed out, for ordinary skilled person in the technical field, on the premise of not departing from the technical principle of the present application, can also make several improvements and variations, these improvements and variations also should be regarded as the protection scope of the present application.
Claims
1. An embedded temperature-sensing regulating valve for installation in the main flow channel of an equipment, wherein a drain port is provided on the outer wall of the main flow channel, characterized in that, The embedded temperature sensing regulating valve includes: The regulating valve body is housed inside the main flow channel and includes a push rod and a valve body that abuts against the inner wall of the main flow channel. The valve body has a through liquid passage chamber and a drain port connected to the liquid passage chamber. The valve body has a connecting part located in the liquid passage chamber. The push rod is at least partially located in the liquid passage chamber and is movably connected to the connecting part. The push rod is provided with a stop. A shape memory alloy spring is located between the connecting part and the stop member, and is configured to sense the temperature of the liquid in the liquid passage chamber and drive the valve body to move to a position where the drain port and the discharge port are at least partially opposite each other.
2. The embedded temperature-sensing regulating valve according to claim 1, characterized in that, The embedded temperature-sensing regulating valve also includes a return spring, which is located on the side of the connecting part opposite to the memory alloy spring and abuts against the connecting part.
3. The embedded temperature-sensing regulating valve according to claim 2, characterized in that, The main channel has two limiting parts arranged opposite to each other, and the push rod and the return spring respectively abut against one of the limiting parts.
4. The embedded temperature-sensing regulating valve according to claim 3, characterized in that, In the direction of liquid flow within the liquid passage chamber, the shape memory alloy spring is positioned near the inlet, and the reset spring is positioned near the outlet.
5. The embedded temperature-sensing regulating valve according to claim 4, characterized in that, The limiting part includes a first limiting part disposed near the water inlet and a second limiting part disposed near the water outlet. The end of the push rod away from the return spring abuts against the first limiting part, and the end of the return spring opposite to the connecting part abuts against the second limiting part.
6. The embedded temperature-sensing regulating valve according to claim 1, characterized in that, The top rod has a stop member at one end relative to the stop member, and the stop member is used to limit the movement distance of the valve body under the drive of the memory alloy spring.
7. The embedded temperature-sensing regulating valve according to claim 6, characterized in that, When the stop member abuts against the connecting part, the distance between the connecting part and the stop member is greater than or equal to the maximum tensile length of the memory alloy spring.
8. The embedded temperature-sensing regulating valve according to claim 1, characterized in that, The stop component is provided with a through-hole for liquid flow.
9. The embedded temperature-sensing regulating valve according to claim 1, characterized in that, The main channel has an inlet and an outlet connected to the liquid passage chamber. A cooling channel is provided between the drain port and the inlet. When the drain port and the discharge port are in relative positions, the liquid discharged from the discharge port flows into the inlet after passing through the drain port and the cooling channel.
10. The embedded temperature-sensing regulating valve according to claim 2, characterized in that, The shape memory alloy spring has a compressed state and a stretched state. When the shape memory alloy spring is in the compressed state, the connecting part is pushed by the reset spring, and the drain port and the discharge port are misaligned. When the shape memory alloy spring is in the stretched state, the connecting part is pushed by the shape memory alloy spring, and the drain port and the discharge port are at least partially aligned.