CN217928310U - Temperature control probe sheath assembly and oil pipeline - Google Patents

Temperature control probe sheath assembly and oil pipeline Download PDF

Info

Publication number
CN217928310U
CN217928310U CN202221449165.3U CN202221449165U CN217928310U CN 217928310 U CN217928310 U CN 217928310U CN 202221449165 U CN202221449165 U CN 202221449165U CN 217928310 U CN217928310 U CN 217928310U
Authority
CN
China
Prior art keywords
probe
intubate
oil pipeline
temperature
insertion tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202221449165.3U
Other languages
Chinese (zh)
Inventor
夏文喜
刘晓军
张亮
康凯
郭书轩
齐亚飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Petroleum and Chemical Corp
Sinopec Henan Petroleum Exploration Bureau No 1 Oil Production Plant
Original Assignee
China Petroleum and Chemical Corp
Sinopec Henan Petroleum Exploration Bureau No 1 Oil Production Plant
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Petroleum and Chemical Corp, Sinopec Henan Petroleum Exploration Bureau No 1 Oil Production Plant filed Critical China Petroleum and Chemical Corp
Priority to CN202221449165.3U priority Critical patent/CN217928310U/en
Application granted granted Critical
Publication of CN217928310U publication Critical patent/CN217928310U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

The utility model relates to a protector's of thermometer technical field especially relates to a control by temperature change probe sheath subassembly and oil pipeline. Temperature control probe sheath subassembly is including setting up the probe intubate and the suit on oil pipeline at the outside cover body of probe intubate, and probe intubate top has the socket, the socket is used for supplying the temperature control probe to insert, the cover body is the elastic sleeve body, and the cover body includes the aperture section at top and the macropore section of bottom, and macropore section suit is cramped in the outside of probe intubate, and the aperture section is just to arranging with the probe intubate, and the aperture section is used for supplying the temperature control probe to insert and the elastic clamping temperature control probe. Through the elastic sleeve body that sets up the patchhole, can separate probe intubation and external world, form airtight space between the cover body and the probe intubation, influence temperature measurement result in avoiding outside air admission airtight space.

Description

Temperature control probe sheath assembly and oil conveying pipeline
Technical Field
The utility model relates to a protector's of thermometer technical field especially relates to a control by temperature change probe sheath subassembly and oil pipeline.
Background
After the informatization transformation is implemented in the oil field, all oil well heads and measurement station, the defeated oil pipeline of defeated station of collection has all arranged the control by temperature change probe on with the temperature to in the defeated oil pipeline is monitored, defeated oil pipeline includes oil pipeline and sets up the probe intubate on the oil pipeline, probe intubate one end is sealed, the one end opening, inside the defeated oil pipeline of confined one end insertion, the control by temperature change probe is inserted in the probe intubate by probe intubate open-ended one end, with the temperature in detecting oil pipeline (the probe intubate is the steel pipe, the inside temperature of oil pipeline can be transmitted to the probe intubate, the temperature in the probe intubate that the control by temperature change probe detected can be regarded as the temperature in the oil pipeline). Because the size of probe intubate differs, can appear after some control by temperature change probe inserts probe intubate that the phenomenon that the control by temperature change probe stretches out the probe intubate, consequently still need to use control by temperature change probe sheath cover outside probe intubate usually to cover probe intubate and control by temperature change probe with formation protection. The diameter of the temperature control probe is 6 mm, the length of the temperature control probe is 120 mm, the size of the probe intubation is phi 18 multiplied by 3 (outer diameter multiplied by wall thickness), and the size of the temperature control probe sheath is phi 32 multiplied by 6 (outer diameter multiplied by wall thickness) and is a steel sheath.
The problem when current control by temperature change probe detected oil pipeline internal temperature lies in: after the temperature control probe is inserted into the probe insertion tube and the temperature control probe sheath covers the probe insertion tube and the outside of the temperature control probe, because annular spaces communicated with the outside exist between the temperature control probe sheath and the outer wall of the probe insertion tube and between the temperature control probe and the inner wall of the probe insertion tube, heat in the probe insertion tube can escape to the outside of the temperature control probe through the annular spaces, especially in winter or windy weather, the heat loss is larger, the temperature detected by the temperature control probe is inaccurate, and the maximum temperature error reaches 20 ℃ according to actual measurement. In addition, because the temperature control probe sheath is a steel sheath, heat inside the probe insertion tube can be transmitted to the outside through the temperature control probe sheath, and heat loss is caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a control by temperature change probe sheath subassembly for there is the great technical problem of control by temperature change probe temperature measurement error with external communicating annular space and result in behind the current control by temperature change probe sheath cover control by temperature change probe and the probe intubate. The utility model also provides an oil pipeline for solving above-mentioned problem.
The utility model discloses a technical scheme of temperature control probe sheath subassembly is:
temperature control probe sheath subassembly is including setting up the probe intubate and the suit on oil pipeline at the outside cover body of probe intubate, and probe intubate top has the socket, the socket is used for supplying the temperature control probe to insert, the cover body is the elastic sleeve body, and the cover body includes the aperture section at top and the macropore section of bottom, and macropore section suit is cramped in the outside of probe intubate, and the aperture section is just to arranging with the probe intubate, and the aperture section is used for supplying the temperature control probe to insert and the elastic clamping temperature control probe.
Has the beneficial effects that: the elastic sleeve body is sleeved outside the probe insertion tube and then hooped tightly by the aid of the elastic force of the elastic sleeve body, so that an annular space is prevented from being formed between the elastic sleeve body and the probe insertion tube, and after the temperature control probe is inserted into the elastic sleeve body through an insertion hole formed by the small hole section, the temperature control probe can be elastically clamped by the elastic sleeve body, so that an annular space is prevented from being formed between the temperature control probe and the elastic sleeve body. Through the elastic sleeve body that sets up the patchhole, can separate probe intubate and external, form airtight space between the cover body and the probe intubate, influence the temperature measuring result in avoiding outside air admission airtight space.
Furthermore, an annular step facing the probe insertion tube is arranged at the intersection position of the small hole section and the large hole section in the sleeve body, an annular protruding part protruding out is arranged on the annular step, and the annular protruding part is used for penetrating into the probe insertion tube and is in sealing fit with the probe insertion tube.
Has the advantages that: the annular bulge is in sealing fit with the probe insertion tube, so that a closed space is formed inside the probe insertion tube, heat loss is further reduced, and the temperature measured by the temperature control probe is more accurate.
Further, the annular protrusion is a frustum with an outer diameter gradually decreasing from top to bottom.
Has the advantages that: when annular bulge inserted in the probe intubate, the extrusion takes place between the conical surface of annular bulge can and the socket of probe intubate, and then the conical surface of annular bulge closely laminates with the socket of probe intubate to the conical surface that makes annular bulge seals the socket of probe intubate, and the leakproofness that annular bulge inserted to the probe is better like this.
Further, the sleeve body is a rubber sleeve body.
Further, the socket of the probe insertion tube is a bevel notch.
Has the advantages that: the sleeve body is sleeved on the outer portion of the probe insertion tube from top to bottom, the sleeve body can be sleeved on the outer portion of the top of the insertion opening, then the sleeve body can gradually and completely sleeve the insertion opening inside along with downward movement of the sleeve body, the sleeving process of the sleeve body can be smoother, and the efficiency is higher.
The utility model discloses an oil pipeline's technical scheme is:
defeated oil pipeline includes oil pipeline and locates the probe intubate on the oil pipeline, and the bottom of probe intubate extends to in the oil pipeline, the outside cover of probe intubate is equipped with the cover body, and probe intubate top has the socket, and defeated oil pipeline still includes the control by temperature change probe that inserts in the socket in the probe intubate, the cover body is the elastic sleeve body, and the cover body includes the aperture section at top and the macropore section of bottom, and macropore section suit is cramped in the outside of probe intubate, and the aperture section is just to arranging with the probe intubate, and the aperture section supplies the control by temperature change probe to insert and the tight control by temperature change probe of elastic clamp.
Has the advantages that: the elastic sleeve body is sleeved outside the probe insertion tube and hooped tightly by the aid of elastic force of the elastic sleeve body, so that an annular space is prevented from being formed between the elastic sleeve body and the probe insertion tube, the temperature control probe can be elastically clamped by the elastic sleeve body after the temperature control probe is inserted into the elastic sleeve body through an insertion hole formed by a small hole section, and an annular space is prevented from being formed between the temperature control probe and the elastic sleeve body. Through the elastic sleeve body that sets up the patchhole, can separate probe intubation and external world, form airtight space between the cover body and the probe intubation, influence temperature measurement result in avoiding outside air admission airtight space.
Furthermore, an annular step facing the probe insertion tube is arranged at the intersection position of the small hole section and the large hole section in the sleeve body, an annular protruding part protruding out is arranged on the annular step, and the annular protruding part is used for penetrating into the probe insertion tube and is in sealing fit with the probe insertion tube.
Has the advantages that: the annular bulge is in sealing fit with the probe insertion tube, so that a closed space is formed inside the probe insertion tube, heat loss is further reduced, and the temperature measured by the temperature control probe is more accurate.
Further, the annular protrusion is a frustum with an outer diameter gradually decreasing from top to bottom.
Has the advantages that: when annular bulge inserted in the probe intubate, the extrusion takes place between the conical surface of annular bulge can and the socket of probe intubate, and then the conical surface of annular bulge closely laminates with the socket of probe intubate to the conical surface that makes annular bulge seals the socket of probe intubate, and the leakproofness that annular bulge inserted to the probe is better like this.
Further, the sleeve body is a rubber sleeve body.
Further, the socket of the probe insertion tube is a bevel cut.
Has the advantages that: the sleeve body is sleeved on the outer portion of the probe insertion tube from top to bottom, the sleeve body can be sleeved on the outer portion of the top of the insertion opening, then the sleeve body can gradually and completely sleeve the insertion opening inside along with downward movement of the sleeve body, the sleeving process of the sleeve body can be smoother, and the efficiency is higher.
Drawings
FIG. 1 is a schematic structural view of a sheath body, a temperature control probe and a probe insertion tube in an embodiment 1 of a temperature control probe sheath assembly of the present invention;
fig. 2 is a schematic diagram of the sheath body, the temperature control probe and the probe cannula of the temperature control probe sheath assembly of embodiment 1 of the present invention during opposite insertion.
Description of reference numerals: 1. a sleeve body; 2. a small pore section; 3. a macroporous section; 4. inserting a probe into a tube; 5. an annular step; 6. a temperature control probe; 7. a tip; 8. a temperature measuring rod; 9. an annular projection; 10. and (4) inserting the socket.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention, i.e., the described embodiments are merely illustrative of some, but not all, of the embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
It is noted that, in the embodiments of the present invention, relational terms such as "first" and "second", and the like, which may be present in the embodiments, are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that such actual relationships or sequences between the entities or operations exist. Also, terms such as "comprises," "comprising," or any other variation thereof, which may be present, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the possible occurrence of the phrases "comprising a limited element of '8230', \8230;" 8230; "etc. does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.
In the description of the present invention, unless otherwise explicitly specified or limited, terms such as "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be connected internally or indirectly to each other. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "provided" should be understood broadly, for example, the object provided may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.
The present invention will be described in further detail with reference to examples.
In order to facilitate real-time monitoring of the temperature in the oil pipeline of the oil field, a probe insertion tube is arranged on the oil pipeline of the oil pipeline, a temperature control probe is installed in the probe insertion tube, and the temperature control probe is used for detecting the temperature in the oil pipeline. In prior art, be equipped with the control by temperature change probe sheath with the outside cover of probe intubate usually at control by temperature change probe, because between the outer wall of control by temperature change probe sheath and probe intubate, exist between the inner wall of control by temperature change probe and probe intubate and with external communicating annular space, the heat in the probe intubate can pass through annular space loss to external world, this temperature that just leads to the control by temperature change probe to detect differs with actual temperature, in order to solve this problem, the utility model provides a control by temperature change probe sheath subassembly, embodiment 1 of control by temperature change probe sheath subassembly:
as shown in fig. 1 and 2, the temperature control probe sheath assembly includes a probe insertion tube 4 disposed on an oil pipeline and a sheath body 1 sleeved outside the probe insertion tube 4, and the sheath body 1 is cylindrical and is an elastic sheath body. The cover body 1 comprises a small hole section 2 at the top and a large hole section 3 at the bottom, the large hole section 3 is sleeved and hooped outside the probe inserting tube 4, the small hole section 2 and the probe inserting tube 4 are opposite to each other and are used for the insertion of the temperature control probe 6, and after the temperature control probe 6 is inserted into the small hole section 2, the small hole section 2 can elastically clamp the temperature control probe 6. The probe insertion tube 4 is provided with a socket 10 at the top, and the socket 10 is used for inserting the temperature control probe 6 into the probe insertion tube 4 to detect the temperature inside the probe insertion tube 4.
It should be noted that, in this embodiment, the temperature control probe 6 includes an end 7 and a temperature measuring rod 8, the temperature measuring rod 8 is a portion of the temperature control probe 6 inserted into the probe insertion tube 4 for measuring temperature, after the temperature measuring rod 8 is inserted into the sheath 1, the end 7 is in stop fit with the sheath 1, and the end 7 is tightly attached to the end surface of the sheath 1 facing the side surface of the sheath 1.
In this embodiment, the sheath body 1 is specifically a rubber sheath body. In other embodiments, the covering may also be an elastic covering made of elastic material such as nylon, polyester elastomer, etc. The diameter of the large hole surrounded by the large hole section 3 for inserting the probe insertion tube 4 is slightly smaller than the outer diameter of the probe insertion tube 4, the diameter of the small hole surrounded by the small hole section 2 for inserting the temperature control probe 6 is slightly smaller than the diameter of the temperature measuring rod 8, the large hole section 3 and the probe insertion tube 4 are taken as an example, when the probe insertion tube 4 is inserted into the large hole section 3, the probe insertion tube 4 can extrude the large hole section 3 to enable the large hole section 3 to expand and deform, the large hole section 3 can hoop the probe insertion tube 4, namely, the large hole section 3 clings to the surface of the probe insertion tube 4, and the sealing fit between the large hole section 3 and the probe insertion tube 4 is realized. In a similar way, after the temperature measuring rod 8 of the temperature control probe 6 is inserted into the small hole section 2, the small hole section 2 can clamp the temperature measuring rod 8, and sealing fit between the small hole section 2 and the temperature measuring rod 8 is realized. Like this, form airtight space between the cover body 1 and the probe intubate 4, the difficult loss of the inside heat of probe intubate 4, the temperature of control by temperature change probe 6 measurement more is close the inside true temperature of oil pipeline, and the temperature measurement error is less. In addition, the sleeve body 1 clamps the temperature control probe 6 through the small hole section 2, and can also play a role in positioning the temperature control probe 6.
In the embodiment, the intersecting position of the large hole section 3 and the small hole section 2 in the sleeve body 1 is provided with an annular step 5 facing the probe insertion tube 4, and in order to enhance the sealing effect of the sleeve body 1 on the probe insertion tube 4, the annular step 5 is provided with an annular protruding part 9 protruding downwards from the annular step 5. In this embodiment, the annular protrusion 9 is a frustum with an outer diameter gradually decreasing from top to bottom, and after the probe insertion tube 4 is inserted into the large hole section 3, the annular protrusion 9 enters the probe insertion tube 4, and the conical surface of the annular protrusion 9 is in extrusion fit with the socket 10 of the probe insertion tube 4 to deform the conical surface, so that the conical surface of the annular protrusion 9 is tightly attached to the socket 10 of the probe insertion tube 4, thereby sealing the socket 10 of the probe insertion tube 4 by the annular protrusion 9.
It should be noted that, the socket 10 of the probe insertion tube 4 is an oblique notch, the socket 10 is an oblique notch, the sleeve body 1 is sleeved on the outside of the probe insertion tube 4 from top to bottom, the sleeve body 1 can be sleeved on the outside of the top of the socket 10 firstly, then the sleeve body 1 can gradually and completely sleeve the socket 10 inside along with the downward movement of the sleeve body 1, the sleeving process of the sleeve body 1 can be smoother, and the efficiency is higher. Of course, in other embodiments, the socket of the probe cannula may be a horizontal slit.
The utility model discloses a temperature control probe sheath subassembly is when using, with the outside of the suit of the cover body 1 in probe intubate 4 to with the temperature measurement pole 8 of temperature control probe 6 insert in the cover body 1 can.
The utility model discloses in embodiment 2 of the control by temperature change probe sheath subassembly that provides, different with embodiment 1 is that, do not set up annular bulge in this embodiment, cover body suit when the probe intubate is outside, annular boss is sealed with the laminating of the socket terminal surface of probe intubate in order to form.
The utility model discloses in embodiment 3 of the control by temperature change probe sheath subassembly that provides, different with embodiment 1 is that, in this embodiment, the annular bulge is the ring cylinder, and after the annular bulge inserted the probe intubate, the outer peripheral face of annular bulge laminated in order to form sealedly with the internal face of probe intubate.
The utility model discloses in embodiment 4 of the control by temperature change probe sheath subassembly that provides, different with embodiment 1 is that, in this embodiment, cover body suit when the probe intubate is outside, the macropore section of the cover body extends to the bottom of probe intubate, including the cover body can wrap up the probe intubate like this, has effectively avoided the phenomenon of the heat in the probe intubate through the outside transmission of pipe wall of probe intubate.
The utility model provides a specific embodiment of oil pipeline, oil pipeline include oil pipeline and locate the probe intubate on the oil pipeline, and in the bottom of probe intubate extended to oil pipeline, the outside cover of probe intubate was equipped with set body, the structure of the cover body is the same with the structure of the cover body in the control by temperature change probe sheath subassembly in the arbitrary embodiment of above, no longer gives unnecessary details.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a control by temperature change probe sheath subassembly, is including setting up probe intubate (4) and the suit on oil pipeline at the outside cover body (1) of probe intubate (4), and probe intubate (4) top has socket (10), socket (10) are used for supplying control by temperature change probe (6) to insert, its characterized in that, cover body (1) is the elastic sleeve body, and cover body (1) includes aperture section (2) and the macropore section (3) of bottom at the top, and macropore section (3) suit is cramped in the outside of probe intubate (4), and aperture section (2) are just to arranging with probe intubate (4), and aperture section (2) are used for supplying control by temperature change probe (6) to insert and elastic clamping control by temperature change probe (6).
2. The temperature-control probe sheath assembly according to claim 1, wherein an annular step (5) facing the probe insertion tube (4) is arranged at the intersection position of the small hole section (2) and the large hole section (3) in the sheath body (1), an annular protruding part (9) arranged in a protruding mode is arranged on the annular step (5), and the annular protruding part (9) is used for penetrating into the probe insertion tube (4) and is in sealing fit with the probe insertion tube (4).
3. The temperature controlled probe sheath assembly according to claim 2, wherein the annular protrusion (9) is a frustum with a decreasing outer diameter from top to bottom.
4. The temperature-controlled probe sheath assembly according to any one of claims 1-3, characterized in that the sheath body (1) is a rubber sheath body.
5. A temperature controlled probe sheath assembly according to any one of claims 1-3, wherein the socket (10) of the probe cannula (4) is a beveled cut.
6. Oil pipeline, including oil pipeline and locate probe intubate (4) on the oil pipeline, the bottom of probe intubate (4) extends to in the oil pipeline, the outside cover of probe intubate (4) is equipped with set body (1), and probe intubate (4) top has socket (10), and oil pipeline still includes by temperature control probe (6) in the socket (10) insert probe intubate (4), its characterized in that, set body (1) is the elastic sleeve body, and set body (1) includes aperture section (2) and the macropore section (3) of bottom at the top, and macropore section (3) suit cramps in the outside of probe intubate (4), and aperture section (2) and probe intubate (4) are just to arranging, and aperture section (2) supply temperature control probe (6) to insert and elastic clamping temperature control probe (6).
7. The oil pipeline according to claim 6, characterized in that an annular step (5) facing the probe insertion tube (4) is arranged at the intersection of the small hole section (2) and the large hole section (3) in the sleeve body (1), an annular protruding part (9) arranged in a protruding manner is arranged on the annular step (5), and the annular protruding part (9) is used for penetrating into the probe insertion tube (4) and is in sealing fit with the probe insertion tube (4).
8. Oil pipeline according to claim 7, characterized in that the annular projection (9) is a frustum of a cone with decreasing outer diameter from top to bottom.
9. Oil pipeline according to any of claims 6 to 8, characterized in that the sheath (1) is a rubber sheath.
10. Oil pipeline according to any of claims 6-8, characterized in that the socket (10) of the probe cannula (4) is a beveled cut.
CN202221449165.3U 2022-06-10 2022-06-10 Temperature control probe sheath assembly and oil pipeline Active CN217928310U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221449165.3U CN217928310U (en) 2022-06-10 2022-06-10 Temperature control probe sheath assembly and oil pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221449165.3U CN217928310U (en) 2022-06-10 2022-06-10 Temperature control probe sheath assembly and oil pipeline

Publications (1)

Publication Number Publication Date
CN217928310U true CN217928310U (en) 2022-11-29

Family

ID=84179887

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221449165.3U Active CN217928310U (en) 2022-06-10 2022-06-10 Temperature control probe sheath assembly and oil pipeline

Country Status (1)

Country Link
CN (1) CN217928310U (en)

Similar Documents

Publication Publication Date Title
CN106051469A (en) Pipeline leakage detection device and detection method
EP2829598A3 (en) Sensor probe seal
CN205877729U (en) Pipeline equipment
CN217928310U (en) Temperature control probe sheath assembly and oil pipeline
CN108514903B (en) Test tube sealer
CN202140720U (en) Inside clamped fixed type quick connector of fixed clamping sleeve
CN103471772A (en) Sealing device for end parts of pipe
CN216009981U (en) Air pipe connecting device for air tightness detection of civil air defense engineering
CN210005188U (en) Leakage detection device for nonlinear thin-wall hard pipeline
CN216746542U (en) Intelligent silicon piezoresistive gas pressure sensor applied to filter screen
CN210135449U (en) Safe and reliable gas pipeline
CN208366560U (en) A kind of battery air tightness observation valve
CN104907956A (en) Clamp for examining air tightness of end cover part
CN208289799U (en) A kind of outer surface aperture pipe lining device
CN215065085U (en) Pressure leak detection test device for nuclear ventilation purification system
CN107655725B (en) Ultralow concentration particulate matter sampling rifle head suitable for low temperature high humidity environment
CN219441725U (en) Suction head grabbing assembly and pipetting mechanism with suction head grabbing assembly
CN216746540U (en) Silicon piezoresistive gas pressure sensor with good air tightness
CN219449699U (en) PCR multiple tube
CN110448309A (en) Triple valve
CN214305699U (en) Die pipeline cutting sleeve type connecting structure
CN216919398U (en) Auxiliary air inlet device of gradient deposition furnace
CN216746541U (en) Intelligent silicon piezoresistive gas pressure sensor capable of being installed quickly
CN212252111U (en) Large-scale motor air-water cooler tube bundle leak detection gun
CN203653708U (en) Connecting component for liquid inlet and outlet hoses of electrolytic tank

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant