Passive constant temperature and humidity system for skid-mounted detection laboratory

Abstract

A passive constant-temperature and constant-humidity system for a skid-mounted detection laboratory comprises a passive constant-temperature and constant-humidity system body, a fresh air system, a skid-mounted material, a detection instrument, a power supply system and a water supply system. The passive constant-temperature and constant-humidity system comprises a constant-temperature system and a constant-humidity system; the constant-temperature system comprises a vacuum layer, a heat insulation material layer, a capillary tube layer and a heat pump; the constant humidity system comprises a humidification system and a dehumidification system which are respectively used for humidification and dehumidification; the skid-mounted material forms an internal bearing support frame of the skid-mounted detection laboratory; and a detection instrument is arranged in the skid-mounted detection laboratory. The problem that a skid-mounted detection laboratory cannot meet the requirement for constant temperature and humidity is solved, and meanwhile the problems that the oil field material detection period is long and the detection efficiency is low are solved. The problems caused by refrigeration, heating, dehumidification and humidification of an active air conditioner are avoided, a passive constant temperature and humidity system is adopted through reasonable design, the constant temperature range is 23 DEG C + / -5 DEG C, the constant humidity range is 65.0% + / -4%, and the requirement of a skid-mounted detection laboratory for the detection environment is met.

Description

Technical Field

[0001] The invention belongs to the technical field of skid-mounted laboratory environmental control, and particularly relates to a passive constant temperature and humidity system for a skid-mounted detection laboratory. Background Art

[0002] With the advent of the energy crisis, improving oil and gas production has become the focus of technological breakthroughs in various countries. Among them, ensuring the supply of oilfield materials is an important way to increase oil and gas production. Controlling the quality of oilfield materials not only improves the quality of oilfield materials, but also plays a crucial role in increasing oil and gas production, extending the lifespan of oilfield exploitation, and ensuring the safety of personnel and property. Therefore, ensuring the quality of oilfield material testing is the key to oilfield supply guarantee.

[0003] The quality and safety of oilfield materials are all sampled, sampled, and sent to various third-party inspection and testing institutions. It usually takes ten days or even longer to complete the testing. This fixed testing method has the problems of long testing cycle and low testing efficiency. At the production, construction, quality control and other sites, by establishing on-site skid-mounted testing laboratories and meeting the requirements of "people, machine, material, method, and environment", it is expected to achieve on-site and rapid testing, effectively shortening the testing cycle to two days, thereby improving the testing efficiency and efficiently evaluating the quality of oilfield materials.

[0004] However, the existing skid-mounted testing laboratories cannot achieve constant temperature and humidity, cannot meet the requirements of the testing environment, that is, cannot meet the requirements of a constant temperature range of 23°C ± 5°C and a constant humidity range of 65.0% ± 4%, resulting in inaccurate testing results and poor repeatability.

[0005] The existing technical methods for maintaining the temperature and humidity of testing laboratories usually actively achieve constant temperature and humidity, that is, use an air conditioning system for refrigeration and heating. Since skids are usually outdoors, the internal environmental temperature of the skid fluctuates greatly (exceeding 10°C), making it difficult to meet the constant temperature requirements. In addition, although the air conditioning system can dehumidify and a few new air conditioning systems have a humidifying function, they still cannot meet the requirement of a humidity of 65.0% ± 4%. Solving the problem that skid-mounted testing laboratories cannot achieve constant temperature and humidity is the key to establishing skid-mounted testing laboratories that meet the experimental condition requirements. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a passive constant temperature and humidity system for a skid-mounted detection laboratory in view of the above-mentioned deficiencies of the prior art.

[0007] To achieve the above technical purpose, the technical solution adopted by the present invention is as follows:

[0008] A skid-mounted detection laboratory passive constant temperature and humidity system, comprising a passive constant temperature and humidity system, a fresh air system, skid-mounted materials, detection instruments, a power supply system and a water supply system;

[0009] The skid-mounted materials form an internal load-bearing support frame of the skid-mounted detection laboratory. The passive constant temperature and humidity system is wrapped on the load-bearing support frame to form a skid-mounted laboratory shell. The fresh air system, detection instruments, power supply system and water supply system are arranged in the skid-mounted laboratory;

[0010] The passive constant temperature and humidity system includes a constant temperature system and a constant humidity system. The constant temperature system includes a vacuum layer, a heat insulation material layer, a capillary layer and a heat pump; the constant humidity system includes a humidification and dehumidification system for humidification and dehumidification respectively.

[0011] Preferably, the fresh air system is used for ventilation of the skid-mounted detection laboratory.

[0012] Preferably, the power supply system supplies power to the passive constant temperature and humidity system, fresh air system and detection instruments in the skid-mounted detection laboratory.

[0013] Preferably, the water supply system is used to meet the water supply demand in the skid-mounted detection laboratory.

[0014] Preferably, the detection instruments include the instruments and equipment required for the skid-mounted detection laboratory to carry out detection work. According to the detection requirements of different oilfield materials, corresponding detection instruments are equipped, and the equipped detection instruments are placed in the sample detection area.

[0015] Preferably, the vacuum layer of the constant temperature system is formed by two layers of stainless steel spaced apart, and the space between the two layers of stainless steel is vacuum.

[0016] Preferably, the heat insulation material layer is arranged inside the vacuum layer and is composed of a compound of quartz sand, water-based cuttings and hollow glass beads for inner layer heat insulation; the compound mass ratio of quartz sand, water-based cuttings and hollow glass beads is 4:4:1 - 3.

[0017] Preferably, the capillary layer is arranged inside the heat insulation material layer and is used for heat exchange with the inside of the skid-mounted laboratory. By carrying out heat exchange with the inside of the skid-mounted laboratory, the temperature control of the inside of the skid-mounted laboratory is realized.

[0018] Preferably, the capillary layer uses water as the heat exchange medium, the material of the capillary layer is polyethylene or polypropylene, and the specification range of the pipeline diameter of the capillary layer is 1mm - 0.01mm.

[0019] Preferably, the heat pump is used to drive the flow of the heat exchange medium in the capillary layer to realize the heat exchange between the capillary layer and the groundwater.

[0020] Preferably, the temperature control range of the skid-mounted testing laboratory is 23°C ± 5°C, and the humidity control range of the skid-mounted testing laboratory is 65.0% ± 4%.

[0021] The present invention has the following beneficial effects:

[0022] After adopting a passive constant temperature and humidity system for a skid-mounted testing laboratory provided by the present invention, the problem that the skid-mounted testing laboratory is difficult to meet the requirements of constant temperature and humidity is solved. At the same time, the problems of long detection cycle and low detection efficiency of oilfield materials are solved. The problems caused by using active air conditioners for refrigeration, heating, dehumidification, and humidification are avoided. By reasonably designing and adopting a passive constant temperature and humidity system, a constant temperature range of 23°C ± 5°C and a constant humidity range of 65.0% ± 4% are satisfied, meeting the requirements of the skid-mounted testing laboratory for the testing environment. By integrating different oilfield material testing instruments into the passive constant temperature and humidity skid-mounted testing laboratory, it can be applied to on-site and rapid testing of different types of oilfield materials, on-site sampling and sample taking, eliminating the steps of sample storage and sample delivery, directly detecting and obtaining results in real time, realizing real-time monitoring of the detection, facilitating the most accurate judgment of the quality and safety problems of oilfield materials, and providing quality assurance for subsequent oil and gas exploitation. Description of the Drawings

[0023] The accompanying drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 is a top view of a passive constant temperature and humidity system for a skid-mounted testing laboratory of the present invention.

[0025] Figure 2 is a front view (heating in winter) of a passive constant temperature and humidity system for a skid-mounted testing laboratory of the present invention.

[0026] Figure 3 is a front view (cooling in summer) of a passive constant temperature and humidity system for a skid-mounted testing laboratory of the present invention.

[0027] Figure 4 is a top view of the first setting method of the equipment in the sample testing area of a passive constant temperature and humidity system for a skid-mounted testing laboratory of the present invention.

[0028] Figure 5 is a top view of the second setting method of the equipment in the sample testing area of a passive constant temperature and humidity system for a skid-mounted testing laboratory of the present invention.

[0029] Figure 6 is a top view of the third setting method of the equipment in the sample testing area of a passive constant temperature and humidity system for a skid-mounted testing laboratory of the present invention.

[0030] In the figure: 1, stainless steel layer; 2, vacuum layer; 3, heat insulation material layer; 4, cement layer; 5, capillary layer; 6, aluminum layer; 7, door; 8, office area; 9, rest area; 10, sample testing area; A, heat pump; B, groundwater; C, fresh air system; D, humidification and dehumidification system; E, ground; 11, sample splitter, bulk density meter; 12, density bottle, electronic balance; 13, vibrating sieve machine, sieve mesh; 14, universal pressure testing machine; 15, microscope, computer; 16, turbidimeter, acid dissolution equipment; 17, high temperature and high pressure filtration loss instrument; 18, viscometer, capillary; 19, water bath, beaker; 20, centrifuge, oven; 21, rheometer, accessory device; 22, surface and interfacial tension meter; 23, high temperature and high pressure filtration loss instrument, filtration loss instrument, viscometer; 24, electrical stabilizer tester, solid content tester; 25, viscosity coefficient instrument, low speed centrifuge, water bath; 26, sand content meter, high temperature roller heating furnace, hydrometer; 27, acid and alkali resistant chemical test bench, balance, iron stand; 28, chemical reagent storage cabinet, glassware storage cabinet. Detailed implementation manners

[0031] The present invention will be described in detail below with reference to the drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0032] The following detailed descriptions are all exemplary descriptions, aiming to provide further detailed descriptions of the present invention. Unless otherwise specified, all technical terms adopted in the present invention have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used in the present invention are only for describing specific implementation manners, and are not intended to limit the exemplary embodiments according to the present invention.

[0033] See Figures 1 - 3 , a skid-mounted detection laboratory passive constant temperature and humidity system, including a passive constant temperature and humidity system, a fresh air system, skid-mounted materials, detection instruments, a power supply system and a water supply system;

[0034] The skid-mounted materials form an internal load-bearing support frame of the skid-mounted detection laboratory. Specifically, the cement layer 4 and the aluminum layer 6 are used as the internal load-bearing support frame during implementation; the passive constant temperature and humidity system is coated on the load-bearing support frame to form the outer shell of the skid-mounted laboratory, and the fresh air system C, detection instruments, power supply system and water supply system are arranged in the skid-mounted laboratory;

[0035] The passive constant temperature and humidity system includes a constant temperature system and a constant humidity system. The constant temperature system includes a vacuum layer, a heat insulation material layer, a capillary layer and a heat pump; the constant humidity system includes a humidification and dehumidification system D for humidification and dehumidification respectively;

[0036] Detection instruments are arranged in the skid-mounted detection laboratory.

[0037] In specific implementation, the fresh air system C is used for ventilating the skid-mounted detection laboratory.

[0038] In specific implementation, the power supply system supplies power to the passive constant temperature and humidity system, the fresh air system C and the detection instruments in the skid-mounted detection laboratory.

[0039] In specific implementation, the water supply system is used to meet the water supply demand in the skid-mounted detection laboratory.

[0040] In specific implementation, the detection instruments include the instruments and equipment required for the skid-mounted detection laboratory to carry out detection work. According to the detection requirements of different oilfield materials, corresponding detection instruments are equipped, and the equipped detection instruments are placed in the sample detection area 10.

[0041] In specific implementation, the vacuum layer 2 of the constant temperature system is formed by two layers of stainless steel arranged at intervals. The interval between the two layers of stainless steel 1 is vacuum. See Figures 1 - 3 , the skid-mounted laboratory is placed on the ground E, and the heat insulation material layer 3 is arranged inside the vacuum layer 2 and is composed of a compound of quartz sand, water-based cuttings and hollow glass beads for inner layer heat insulation. The compound mass ratio of quartz sand, water-based cuttings and hollow glass beads is 4:4:1 - 3 (the greater the relative mass of quartz sand and water-based cuttings, the higher the hardness and the better the support effect, and the higher the content of hollow glass beads, the better the heat insulation effect); the capillary layer is arranged inside the heat insulation material layer 3 and is used for heat exchange with the inside of the skid-mounted laboratory. By exchanging heat with the inside of the skid-mounted laboratory, the temperature control of the inside of the skid-mounted laboratory is realized. The capillary layer 5 uses water as the heat exchange medium, the material of the capillary layer 5 is polyethylene or polypropylene, and the specification range of the pipeline diameter of the capillary layer 5 is 1mm - 0.01mm (the smaller the diameter of the capillary layer 5, the higher the heat exchange efficiency). The heat pump A is used to drive the heat exchange medium in the capillary layer 5 to flow, so as to realize the heat exchange between the capillary layer 5 and the groundwater B. The heat pump A (heating up) refers to the mechanical device used to extract the groundwater B in winter. The groundwater B is used as the heat exchange medium. Through the heat pump A (heating up), the groundwater B is extracted to the capillary layer 5, and the heat is transferred to the passive constant temperature and humidity skid-mounted detection laboratory. Through a certain period of heat exchange, the temperature of the skid-mounted detection laboratory reaches the requirement, and the temperature of the skid-mounted detection laboratory is controlled at 23°C ± 5°C.

[0042] The system operation process is as follows: First, ventilation is completed through the fresh air system in sequence, then humidity control is completed by the constant humidity system, and finally temperature control is completed by the constant temperature system.

[0043] According to the detection requirements, the internal area of the skid-mounted detection laboratory is divided into a sample detection area 10, an office area 8, and a rest area 9. The skid-mounted laboratory is provided with a door 7 for personnel to enter and exit. The sample detection area 10 is an area and space for carrying out detection work on oilfield materials. The office area 8 is an area and space for processing detection work data and issuing reports. The rest area 9 is an area and space for the detection staff to rest.

[0044] See Figure 4 , in the sample detection area 10, the instruments required for fracturing proppant detection are integrated in an "S" shape from left to right, including a sample splitter, a bulk density meter 11, a density bottle, an electronic balance 12, a vibrating sieve machine, a sieve mesh 13, a universal testing machine 14, a microscope, a computer 15, a turbidimeter, and an acid dissolution device 16, which can meet the full-item detection of fracturing proppants.

[0045] See Figure 5 , in the sample detection area 10, the instruments required for water-based fracturing fluid detection are integrated in an "S" shape from left to right, including a high-temperature and high-pressure filtration loss instrument 17, a viscometer, a capillary tube 18, a water bath, a beaker 19, a centrifuge, an oven 20, a rheometer, an accessory device 21, and a surface and interfacial tension meter 22, which can meet the full-item detection of water-based fracturing fluids.

[0046] See Figure 6 , in the sample detection area 10, the instruments required for drilling fluid detection are integrated in an "S" shape from left to right, including a high-temperature and high-pressure filtration loss instrument, a filtration loss instrument, a viscometer 23, an electrical stabilizer tester, a solid content tester 24, a viscosity coefficient meter, a low-speed centrifuge, a water bath 25, a sand content meter, a high-temperature roller heating furnace, a hydrometer 26, an acid- and alkali-resistant chemical test bench, a balance, an iron stand 27, a chemical reagent storage cabinet, and a glassware storage cabinet 28, which can meet the full-item detection of drilling fluids.

[0047] Example 1:

[0048] See Figure 2, in the humid winter climate, when the humidity is greater than 69.0%, that is, it does not meet the constant humidity range of 65.0% ± 4%. The passive constant temperature and humidity skid-mounted testing laboratory first uses the fresh air system C to complete the ventilation in the laboratory, continuously turns on the fresh air system C for two hours, and then turns off the fresh air system C; then turns on the dehumidification system in the humidification and dehumidification system D, keeps it on for more than 4 hours, waits until the humidity meets the constant humidity range of 65.0% ± 4%, and turns off the dehumidification system in the humidification and dehumidification system D; then turns on the heat pump A (heating) to pump the groundwater B to the capillary layer 5, keeps it on for two hours, transfers the heat to the passive constant temperature and humidity skid-mounted testing laboratory, and makes the temperature of the passive constant temperature and humidity skid-mounted testing laboratory reach 23°C ± 5°C through heat exchange for a certain period of time, and turns off the heat pump A (heating). If the temperature is lower than 18°C, that is, it does not meet the constant temperature range of 23°C ± 5°C, turn on the heat pump A (heating) until the temperature reaches 23°C ± 5°C, and then turn off the heat pump A (heating).

[0049] Example 2

[0050] , in the dry winter climate, when the humidity is greater than 61.0%, that is, it does not meet the constant humidity range of 65.0% ± 4%. The passive constant temperature and humidity skid-mounted testing laboratory first uses the fresh air system C to complete the ventilation in the laboratory, continuously turns on the fresh air system C for two hours, and then turns off the fresh air system C; then turns on the humidification system in the humidification and dehumidification system D, keeps it on for 4 hours, waits until the humidity meets the constant humidity range of 65.0% ± 4%, and turns off the humidification system in the humidification and dehumidification system D; then turns on the heat pump A (heating) to pump the groundwater B to the 5-capillary layer, keeps it on for 2 hours, transfers the heat to the passive constant temperature and humidity skid-mounted testing laboratory, and makes the temperature of the passive constant temperature and humidity skid-mounted testing laboratory reach 23°C ± 5°C through heat exchange for a certain period of time, and turns off the heat pump A (heating). If the temperature is lower than 18°C, that is, it does not meet the constant temperature range of 23°C ± 5°C, turn on the heat pump A (heating) until the temperature reaches 23°C ± 5°C, and then turn off the heat pump A (heating).

[0051] Example 3:

[0052] See Figure 3, in the humid summer climate, when the humidity is greater than 69.0%, that is, it does not meet the constant humidity range of 65.0% ± 4%. The passive constant temperature and humidity skid-mounted test laboratory first uses the fresh air system C to complete the ventilation in the laboratory, continuously turns on the fresh air system C for two hours, and then turns off the fresh air system C; then turns on the dehumidification system in the humidification and dehumidification system D, keeps it on for more than 4 hours, waits until the humidity meets the constant humidity range of 65.0% ± 4%, and turns off the dehumidification system in the humidification and dehumidification system D; then turns on the heat pump A (cooling) to pump the water in the capillary layer 5 to the groundwater B, and after cooling through the groundwater B, it is pumped back to the capillary layer 5 again, keeps it on for two hours, transfers the heat to the passive constant temperature and humidity skid-mounted test laboratory, and through a certain period of heat exchange, makes the temperature of the passive constant temperature and humidity skid-mounted test laboratory reach 23°C ± 5°C, and turns off the heat pump A (cooling). If the temperature is higher than 23°C ± 5°C, that is, it does not meet the constant temperature range of 23°C ± 5°C, turn on the heat pump A (cooling) until the temperature reaches 23°C ± 5°C, and then turn off the heat pump A (cooling).

[0053] Example 4

[0054] In the dry summer climate, when the humidity is greater than 61.0%, that is, it does not meet the constant humidity range of 65.0% ± 4%. The passive constant temperature and humidity skid-mounted test laboratory first uses the fresh air system C to complete the ventilation in the laboratory, continuously turns on the fresh air system C for two hours, and then turns off the fresh air system C; then turns on the humidification system in the humidification and dehumidification system D, keeps it on for 4 hours, waits until the humidity meets the constant humidity range of 65.0% ± 4%, and turns off the humidification system in the humidification and dehumidification system D; then turns on the heat pump A (cooling) to pump the water in the capillary layer 5 to the groundwater B, and after cooling through the groundwater B, it is pumped back to the capillary layer 5 again, transfers the heat to the passive constant temperature and humidity skid-mounted test laboratory, and through a certain period of heat exchange, makes the temperature of the passive constant temperature and humidity skid-mounted test laboratory reach 23°C ± 5°C, and turns off the heat pump A (cooling). If the temperature is higher than 23°C ± 5°C, that is, it does not meet the constant temperature range of 23°C ± 5°C, turn on the heat pump A (cooling) until the temperature reaches 23°C ± 5°C, and then turn off the heat pump A (cooling).

[0055] In the above embodiments, the heat pump A and the groundwater B can achieve heat exchange through direct medium exchange or through temperature conduction.

[0056] Example 5

[0057] The difference between this embodiment and Embodiment 1 or Embodiment 2 is that the mass ratio of the thermal insulation material layer in this embodiment is quartz sand : water-based cuttings : hollow glass beads = 4 : 4 : 2. Also in winter, reducing the mass of the hollow glass beads will cause the reduction of the heat insulation ability of the passive constant temperature and humidity skid-mounted test laboratory, and it is necessary to use the A - heat pump (heating) for 4h during the use process.

[0058] Example 6

[0059] The difference between this embodiment and Embodiment 1 or Embodiment 2 is that the mass ratio of the heat insulation material layer in this embodiment is quartz sand : water-based cuttings : hollow glass beads = 4 : 4 : 1. Also in winter, reducing the mass of the hollow glass beads will cause a decrease in the heat insulation ability of the passive constant temperature and humidity skid-mounted testing laboratory, and it is necessary to use the A-heat pump (heating up) for 8 hours during the use process.

[0060] Embodiment 7

[0061] The difference between this embodiment and Embodiment 1 or Embodiment 2 is that the material of the capillary layer in this embodiment is selected as polypropylene. Also in winter, when the material of the heat insulation material layer is selected as polypropylene, the functions and usage processes of the passive constant temperature and humidity skid-mounted testing laboratory remain unchanged.

[0062] Embodiment 8

[0063] The difference between this embodiment and Embodiment 1 or Embodiment 2 is that the specification of the capillary layer in this embodiment is selected as 0.1 mm. Also in winter, selecting capillaries with a larger size for the capillary layer will cause a decrease in the heat exchange efficiency of the passive constant temperature and humidity skid-mounted testing laboratory, and it is necessary to use the A-heat pump (heating up) for 6 hours during the use process.

[0064] Embodiment 9

[0065] The difference between this embodiment and Embodiment 1 or Embodiment 2 is that the specification of the capillary layer in this embodiment is selected as 1 mm. Also in winter, selecting capillaries with a larger size for the capillary layer will cause a decrease in the heat exchange efficiency of the passive constant temperature and humidity skid-mounted testing laboratory, and it is necessary to use the A-heat pump (heating up) for 12 hours during the use process.

[0066] Embodiment 10

[0067] The difference between this embodiment and Embodiment 1 or Embodiment 2 is that this embodiment is specifically a passive constant temperature and humidity skid-mounted testing laboratory for fracturing proppants, designed as Figure 2 、 4 shown, and the constant temperature and humidity working process is the same as that of Embodiment 1. Figure 4 In the 10-sample testing area, the instruments required for fracturing proppant testing are integrated in an "S" shape from left to right, including 11-splitter, bulk density meter, 12-density bottle, electronic balance, 13-vibrating sieve machine, sieve mesh, 14-universal pressure testing machine, 15-microscope, computer, 16-turbidity meter, acid dissolution equipment, which can meet the full-item testing of fracturing proppants.

[0068] Embodiment 11

[0069] The difference between this embodiment and Embodiment 1 or Embodiment 2 is that this embodiment is specifically a passive constant temperature and humidity skid-mounted testing laboratory for water-based fracturing fluid, designed as Figure 2 、5 As shown, the constant temperature and humidity working process is the same as that of Embodiment 1. Figure 5 In the 10 - sample detection area, the instruments required for water - based fracturing fluid detection are integrated in an "S" shape from left to right, including 11 - high - temperature and high - pressure filtration loss instrument, 12 - viscometer and capillary, 13 - water bath and beaker, 14 - centrifuge and oven, 15 - rheometer and accessory device, 16 - surface and interfacial tension meter, which can meet the full - item detection of water - based fracturing fluid.

[0070] Embodiment 12

[0071] The difference between this embodiment and Embodiment 1 or Embodiment 2 is that this embodiment is specifically a passive constant temperature and humidity skid - mounted detection laboratory for drilling fluid, designed as Figure 2 、 6 As shown, the constant temperature and humidity working process is the same as that of Embodiment 1. Figure 6 In the 10 - sample detection area, the instruments required for drilling fluid detection are integrated in an "S" shape from left to right, including 11 - high - temperature and high - pressure filtration loss instrument, filtration loss instrument, viscometer, 12 - electrical stability tester and solid content tester, 13 - viscosity coefficient meter, low - speed centrifuge and water bath, 14 - sand content meter, high - temperature roller heating furnace and hydrometer, 5 - acid - and - alkali - resistant chemical test bench, balance and iron stand, 16 - chemical reagent storage cabinet and glassware storage cabinet, which can meet the full - item detection of drilling fluid.

[0072] A passive constant temperature and humidity system for a skid - mounted detection laboratory provided by the present invention solves the problem that it is difficult for a skid - mounted detection laboratory to meet the requirements of constant temperature and humidity, and at the same time solves the problems of long detection cycle and low detection efficiency of oilfield materials. It avoids the problems caused by using active air - conditioners for refrigeration, heating, dehumidification and humidification. By reasonably designing and adopting a passive constant temperature and humidity system, it meets the constant temperature range of 23°C ± 5°C and the constant humidity range of 65.0% ± 4%, meeting the requirements of the skid - mounted detection laboratory for the detection environment. By integrating different oilfield material detection instruments into the passive constant temperature and humidity skid - mounted detection laboratory, it can be applied to on - site and rapid detection of different types of oilfield materials, on - site sampling and sample taking, omitting the steps of sample storage and sample delivery, directly detecting and obtaining results in real - time, realizing real - time monitoring of detection, facilitating the most accurate judgment of the quality and safety problems of oilfield materials, and providing quality assurance for subsequent oil and gas exploitation.

[0073] As is known by common technical knowledge, the present invention can be implemented by other embodiments that do not depart from its spirit or essential features. Therefore, the above - disclosed embodiments are illustrative in all aspects and are not the only ones. All changes within the scope of the present invention or within the scope equivalent to the present invention are encompassed by the present invention.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the present invention or make equivalent replacements. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A passive constant temperature and humidity system for a skid-mounted detection laboratory, characterized in that: the system includes a passive constant temperature and humidity system, a fresh air system, skid-mounted materials, detection instruments, a power supply system and a water supply system; the skid-mounted materials form an internal load-bearing support frame of the skid-mounted detection laboratory, the passive constant temperature and humidity system is coated on the load-bearing support frame to form a skid-mounted laboratory shell, and the fresh air system, detection instruments, power supply system and water supply system are arranged in the skid-mounted laboratory; the passive constant temperature and humidity system includes a constant temperature system and a constant humidity system, the constant temperature system includes a vacuum layer, a heat insulation material layer, a capillary layer and a heat pump; the vacuum layer, the heat insulation material layer and the capillary layer are arranged in sequence from the outside to the inside, and the heat pump is connected to the capillary layer; the constant humidity system includes a humidification and dehumidification system, which are used for humidification and dehumidification respectively.

2. The passive constant temperature and humidity system for a skid-mounted detection laboratory according to claim 1, characterized in that: the fresh air system is used for ventilation of the skid-mounted detection laboratory.

3. The passive constant temperature and humidity system for a skid-mounted detection laboratory according to claim 1, characterized in that: the power supply system supplies power to the passive constant temperature and humidity system, fresh air system and detection instruments in the skid-mounted detection laboratory.

4. The passive constant temperature and humidity system for a skid-mounted detection laboratory according to claim 1, characterized in that: the water supply system is used to meet the water supply use requirements in the skid-mounted detection laboratory.

5. The passive constant temperature and humidity system for a skid-mounted detection laboratory according to claim 1, characterized in that: the detection instruments include the instruments and equipment required for the skid-mounted detection laboratory to carry out detection work. According to the detection requirements of different oilfield materials, corresponding detection instruments are equipped, and the equipped detection instruments are placed in the sample detection area.

6. The passive constant temperature and humidity system for a skid-mounted detection laboratory according to claim 1, characterized in that: the vacuum layer of the constant temperature system is formed by two layers of stainless steel arranged at intervals, and the interval between the two layers of stainless steel is vacuum.

7. The passive constant temperature and humidity system for a skid-mounted detection laboratory according to claim 1, characterized in that: the heat insulation material layer is arranged inside the vacuum layer and is composed of a compound of quartz sand, water-based cuttings and hollow glass beads for inner layer heat insulation; the compound mass ratio of quartz sand, water-based cuttings and hollow glass beads is 4:4:1-3.

8. The passive constant temperature and humidity system for a skid-mounted detection laboratory according to claim 1, characterized in that: the capillary layer is arranged inside the heat insulation material layer and is used for heat exchange with the inside of the skid-mounted laboratory. By exchanging heat with the inside of the skid-mounted laboratory, the temperature control of the inside of the skid-mounted laboratory is realized; the capillary layer uses water as the heat exchange medium, the material of the capillary layer is polyethylene or polypropylene, and the specification range of the capillary layer pipeline diameter is 1mm-0.01mm.

9. The passive constant temperature and humidity system for a skid-mounted detection laboratory according to claim 1, characterized in that: the heat pump is used to drive the flow of the heat exchange medium in the capillary layer to realize the heat exchange between the capillary layer and the groundwater.

10. A passive constant temperature and humidity system for a skid-mounted testing laboratory according to claim 1, characterized in that: the temperature control range of the skid-mounted testing laboratory is 23°C ± 5°C, and the humidity control range of the skid-mounted testing laboratory is 65.0% ± 4%.

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